CN101037132B - Power unit structure for hybrid vehicle - Google Patents
Power unit structure for hybrid vehicle Download PDFInfo
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- CN101037132B CN101037132B CN2007100919389A CN200710091938A CN101037132B CN 101037132 B CN101037132 B CN 101037132B CN 2007100919389 A CN2007100919389 A CN 2007100919389A CN 200710091938 A CN200710091938 A CN 200710091938A CN 101037132 B CN101037132 B CN 101037132B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
To provide desired shaft torque to a drive wheel without increasing the number of parts or increasing the size of a motor, to improve cooling capability of a generator housed inside a transmission case, and to improve energy transmission efficiency and electrical generation efficiency in an engine unit of a hybrid vehicle. A power unit structure for a hybrid vehicle is provided with an engine, a continuously variable transmission, a driven shaft, a drive motor and a reduction gear mechanism. The drive motor is attached to the reduction gear mechanism.
Description
Divide an application
The application is to be on September 28th, 2004 applying date, and name is called the dividing an application of No. 200410012066.9 applications for a patent for invention of " power unit structure for hybrid vehicle ".
The cross reference of related application
This non-provisional application and Japanese patent application 2003-338823,2003-338824,2003-338825 (the filing day of each application is on September 29th, 2003) is relevant.Above-mentioned each file whole by reference with the application's integrator.
Technical field
The present invention relates to a kind of power unit structure of motor vehicle driven by mixed power, this hybrid vehicle has a driving engine and a motor as propulsion source.
Background technology
In background technology, a kind of known hybrid vehicle has power drive, is used for transmission of power with driving engine to the drive wheel that is installed in a change speed gear box.This power drive with driving engine and motor power pack merge and to be delivered to (for example, the open Hei 8-175473 of Japanese Patent) on the axle drive shaft.Disclosed hybrid vehicle has an electrical generator in above-mentioned file, and this electrical generator directly or by a reducing gear is connected with axle drive shaft in the power drive.
But, the said structure that is connected with the axle drive shaft of power drive by a reducing gear for motor, when a required axle moment of torsion is supplied on the drive wheel, just need additionally provide one with first reducing gear reducing gear independently mutually.In addition, for the said structure that motor directly is connected with the axle drive shaft of power drive, be difficult to guarantee that motor is to reduction ratio enough between the drive wheel.Therefore, the problem that exists a motor size to increase.
Disclosed hybrid vehicle also has the drive wheel that is connected on the axle drive shaft in above-mentioned patent document, and this axle drive shaft stretches out from casing on vehicle-width direction, also has an electrical generator in addition, is connected to the outside of this casing on the Width of vehicle.Therefore, drive axial thickness and become very wide.
In order to address this problem, once considered electrical generator is installed in unit box inside, to make full use of the space.But the electrical generator of hybrid vehicle is supplied to axle drive shaft with the propulsive effort that travels.Therefore, its output rating is bigger usually, and the heat that is produced is also very big.Like this, because it is narrower to drive axial space, when electrical generator is installed in power unit inside, must improve the cooling power of electrical generator.
In background technology, it is to be equipped with that a kind of vehicle is arranged, and for example, a kind of belt-driven continuously variable transmission is as power drive, to give drive wheel (for example, referring to Japanese patent application 2002-181147) with the transmission of power of driving engine.Disclosed vehicle is equipped with a centrifugal starting to become the resistance power-transfer clutch in this document, is connected on the bent axle of driving engine.When the rotative speed of driving engine surpassed a particular value, this starting clutch just engaged, to rotate this belt-driving type toric transmission.In addition, engine power is passed on the drive wheel by this belt-driven continuously variable transmission.Especially, before engine speed surpassed a particular value, because friction force is too little, this belt-driven continuously variable transmission can not rotate.
But, disclosed vehicle motor bike normally in the above-mentioned patent document, rather than engine power and motor power combination are delivered to the hybrid vehicle of drive wheel.On hybrid vehicle, occur drive wheel and only use motor as propulsion source and driven situation.It is desirable improving energy transfer efficiency in this class situation.In addition, when engine speed is low, under idling, should be able to utilize the turning effort of bent axle fully, and utilize motor to produce electric energy as actuating motor and electrical generator.
Summary of the invention
The present invention is considering that design is come out under the prerequisite of the problems referred to above, and one of them purpose of the present invention is to provide a desirable axle moment of torsion for drive wheel under the situation that does not increase amount of parts and motor size.
In order to address the above problem, one of them aspect of the present invention relates to a kind of power unit structure of hybrid vehicle, this power unit (for example is equipped with a driving engine, driving engine 20 among the embodiment, explanation below), power drive (for example, toric transmission 23 among the embodiment that will illustrate below), be used for being connected on the driving engine bent axle (for example, bent axle 22 among the embodiment that will illustrate below) transmission of power (is for example given drive wheel, a trailing wheel WR among the embodiment that will illustrate below), a driven shaft (for example, driven shaft 60 among the embodiment that will illustrate below, be connected on the trailing wheel WR by a reduction gear 69), be connected on driving one side of power drive, a reduction gear (for example, reduction gear 69 among the embodiment that will illustrate below), be used to reduce the turning effort of axle drive shaft and it is passed to drive wheel, and a motor (for example, drive motor 21b among the embodiment that will illustrate below), be used for giving drive wheel with transmission of power, wherein this motor is connected with reduction gear.
According to this structure, can utilize reduction gear between power drive and drive wheel with the power of motor by deceleration effort and pass to drive wheel.
According to another aspect of the present invention, this power unit structure that is used for hybrid vehicle comprises the motor that is connected on the drive wheel.
According to a further aspect of the invention, this power unit structure for hybrid vehicle comprises and being arranged on the side relative with reduction gear, the motor that power drive is clipped in the middle.For this structure, heavy motor and reduction gear (to the left and right) on the Width of Power train are separated.
According to another aspect of the present invention, this power unit structure for hybrid vehicle comprises unit oscillating (unit swing tgpe) mixed-power bicycle, from the side past of car, this motor is disposed in (the line L between bent axle 22 among the embodiment that for example, will illustrate below and the axle 68) on the line that is higher than between bent axle and the drive wheel.In this structure, can will may be that the generator arrangements of large-scale hybrid vehicle is on higher position.
According to a further aspect in the invention, this hybrid vehicle power unit comprises the motor that is installed in the outside on the vehicle-width direction with respect to power drive.According to this structure, by the change speed gear box of the dynamic driving device of opening installation, outside this motor will be exposed to.
In accordance with a further aspect of the present invention, this power unit structure for hybrid vehicle is included in the longitudinal direction of the output shaft of the motor that vehicle-width direction arranges, this motor output shaft is disposed on the vehicle than on the more forward position of axle drive shaft.According to this structure, can be with the contraction in length of longitudinal direction of car.
The above-mentioned aspect according to the present invention, can utilize the reduction gear between power drive and drive wheel to realize slowing down and giving drive wheel with the transmission of power of motor, this means, directly be connected with drive wheel with motor, do not have the power unit of reduction gear to compare between power drive and drive wheel, it can obtain following effect.Especially, though the power that drive motor 21b produces under two kinds of situations equates, even the speed of a motor vehicle finally also will be passed through the situation of slowing down together, but, therefore can prevent the increase of amount of parts because it needn't add extra reduction gear between power drive and drive wheel.On the other hand, when the power that finally passes to drive wheel is divided equally, can further reduce the size of motor.
In addition, Ben Chong motor and reduction gear on the Width of Power train (left and right) are separated.In addition and since can with may be the generator arrangements of large-scale hybrid vehicle on higher position, therefore can guarantee the bigger angle of turn of two-wheel car.In addition, owing to just can make outside motor is exposed to, therefore can improve the maintainability of motor and touching property by the change speed gear box of the dynamic driving device of opening installation simply.In addition, can shorten the longitudinal length of vehicle.
Another object of the present invention is to improve the cooling power that is installed in the electrical generator in the unit box.
In order to address the above problem, a kind of power unit that one of them aspect of the present invention relates to hybrid vehicle (for example, power unit 11 among the embodiment that will illustrate below), this power unit (for example is equipped with a driving engine, driving engine 20 among the embodiment that will illustrate below), power drive (for example, toric transmission among the embodiment that will illustrate below), be used for being connected on the driving engine bent axle (for example, bent axle 22 among the embodiment that will illustrate below) rotational power (for example passes to drive wheel, a trailing wheel WR among the embodiment that will illustrate below), an axle drive shaft, be connected on driving one side of power drive and on the drive wheel (for example, driven shaft 60 among the embodiment that will illustrate below, it is connected on the trailing wheel by a reduction gear 69), a motor (for example, drive motor 21b among the embodiment that will illustrate below), be connected on the axle drive shaft, and act as at least one dynamotor, and the one unit casing (for example, change speed gear box 59 among the embodiment that will illustrate below) dress power drive and electrical motor in, one of them fan (for example, fan 54b among the embodiment that will illustrate below) be connected on the bent axle, and motor and fan are disposed in the same side in the unit box with respect to power drive.According to this structure, fan rotates with bent axle, and the result of rotation produces eddy current in unit box.
According to a further aspect in the invention, this hybrid vehicle power unit (for example comprises power engaged/disengaged device, starting clutch 40 among the embodiment that will illustrate below), be used for when crankshaft rotating speed surpasses a particular value turning effort of bent axle is passed to power drive.This power engaged/disengaged device is disposed between bent axle and the power drive.According to this structure, even (as situations such as wait traffic lights signals) be not owing to power drive is driven when idling, thereby the generation that can suppress to rub.
According to a further aspect in the invention, this hybrid vehicle power unit comprises the motor that is fixed on the unit box.According to this structure, the heat that motor produced is passed on the unit box and dissipates from the outside face of casing.
According to a further aspect in the invention, this hybrid vehicle power unit comprises the motor that is fixed on the unit box inwall (the inwall 59A among the embodiment that for example, will illustrate below).According to this structure, this motor not only can also be cooled off by the eddy current that unit casing internal fan is produced by the air cooling of flowing.
In accordance with a further aspect of the present invention, this hybrid vehicle power unit comprise be installed in unit box motor accessories part outside face (for example, outer wall 59B among the embodiment that will illustrate below) the cooling fin on (the fin 59b among the embodiment that for example, will illustrate below).According to this structure, the area that constitutes this motor accessories part outside face of heat dissipation surface has obtained increase, thereby has further improved air-cooled ability.
The above-mentioned each side according to the present invention, fan rotates with bent axle, and the result of rotation produces eddy current in unit box, this means to make the electrical generator that produces huge heat obtain cooling effectively.Even under idling, in (under situations such as the wait traffic lights signal) wind that flows, also can make the motor cooling by induced ventilation.
In addition, though idling as the situation of waiting for traffic lights signal etc. under because power drive is not driven, thereby the generation that can suppress to rub.In addition, the heat that motor produces is passed on the unit box and passes through the outside face dissipation of casing, this means the cooling effectiveness that can utilize air flow to improve motor.In addition, because motor not only cools off by the wind that flows, also the eddy current that is produced by the unit box internal fan cools off, and therefore can make the motor cooling more effectively.In addition, obtain increasing, utilize the cooling power of the wind that flows to be further improved, therefore can make the motor cooling more effectively owing to constitute the area of the motor accessories part outside face of heat dissipation surface.
Another object of the present invention is to improve the energy transfer efficiency and the generating efficiency of hybrid electric vehicle engine unit.
In order to address the above problem, a kind of power unit of hybrid vehicle (for example is equipped with a driving engine, driving engine 20 among the embodiment that will illustrate below), first motor (for example, ACG actuating motor 21a among the embodiment that will illustrate below) bent axle that is connected to driving engine (for example, bent axle 22 among the embodiment that will illustrate below) goes up and act as an actuating motor and electrical generator, power drive (for example, toric transmission 23 among the embodiment that will illustrate below), be used for the turning effort of bent axle (is for example passed to drive wheel, a trailing wheel WR among the embodiment that will illustrate below), an axle drive shaft, be connected on driving one side of power drive and on the drive wheel (for example, driven shaft 60 among the embodiment that will illustrate below, it is connected to trailing wheel WR by a reduction gear 69), second motor (for example, drive motor 21b among the embodiment that will illustrate below), be connected on the axle drive shaft, and act as at least one motor, and power engaged/disengaged device (for example, starting clutch 40 among the embodiment that will illustrate below), be arranged between bent axle and the power drive, be used for when crankshaft rotating speed surpasses a particular value turning effort of bent axle is passed to power drive.
According to this structure, transmission of power when engine speed is lower than this particular value between bent axle and the power drive is interrupted, drive wheel is no longer driven by driving engine, but is driven by a motor (second motor) that has high pulling torque usually under low speed.In addition, when engine speed was low, under idling, the turning effort of bent axle was not consumed by driving power drive, but is converted into electric energy effectively by first motor.Equally, because this power drive is not driven when waiting for the situation of traffic lights signal etc., thereby the generation that can suppress to rub.
According to a further aspect in the invention, this hybrid vehicle power unit comprises power engaged/disengaged device, and than power drive, this power engaged/disengaged device is disposed in place more outer on the vehicle-width direction.According to this structure, have outside the change speed gear box of this power drive just can be exposed to this power engaged/disengaged device by opening installation simply.
In accordance with a further aspect of the present invention, this power unit structure for hybrid vehicle comprises that admission port (for example, coolant air admission port 59a among the embodiment that will illustrate below), these admission ports be positioned at power drive is installed change speed gear box (for example, change speed gear box 59 among the embodiment that will illustrate below) on, and this power engaged/disengaged device is positioned on the position near these admission ports.According to this structure, this power engaged/disengaged device can utilize the extraneous air that enters in the change speed gear box by these admission ports to obtain effective forced cooling.
According to a further aspect in the invention, this power unit structure for hybrid vehicle comprises the power engaged/disengaged device and second motor that is arranged in the first motor opposite, surrounds this power drive.According to this structure, be disposed in the power engaged/disengaged device and second motor on the same side with respect to power drive, and than this power engaged/disengaged device and the first heavier motor of second motor, on vehicle-width direction (right side-left side), be separated, surround this power drive.
The above-mentioned each side according to the present invention, when engine speed is lower than particular value, transmission of power between bent axle and the power drive is interrupted, and drive wheel is no longer driven by driving engine, but is driven by a motor (second motor) that has high pulling torque usually under low speed.Therefore, can in slow-revving zone, reduce the driving loss.Equally, because engine speed is low the time, for example under the idling, the turning effort of bent axle is not driven this power drive and consumes, but is converted into electric energy effectively by first motor, thereby has improved the generating efficiency of first motor.In addition, because this power drive is not driven when waiting for the situation of traffic lights signal etc., thereby the generation that can suppress to rub.
In addition, by outside the change speed gear box of the dynamic driving device of opening installation just can be exposed to power engaged/disengaged device simply.Thereby improved its maintainable and touching property.In addition, this power engaged/disengaged device and second motor are disposed on the same side with respect to power drive, therefore, be disposed in the situation that opposite side surrounds power drive than the power engaged/disengaged device and second motor, this structure can reduce the width of vehicle.
In addition, power engaged/disengaged device can utilize by admission port and enter into the air in the change speed gear box and be forced to cooling effectively.Thereby can improve the cooling power of this power engaged/disengaged device.In addition, be disposed in the power engaged/disengaged device and second motor on the same side with respect to power drive, and than this power engaged/disengaged device and the first heavier motor of second motor, on vehicle-width direction (L-R), be separated, surround this power drive.
The further field of application of the present invention will seem clearer in the detailed description hereinafter.But, should be understood that, when setting forth the preferred embodiments of the present invention, only provide the explanation of details and specific example by the mode of describing, because by these detailed explanations, various variation and modifications within the spirit and scope of the present invention are conspicuous for the those of skill in the art in those this areas.
Description of drawings
To be more readily understood the present invention by following detailed description and accompanying drawing, but these accompanying drawings are not made any restriction to the present invention, wherein:
Fig. 1 is the lateral elevational view that is equipped with the mixed-power bicycle of power unit of the present invention;
Fig. 2 is the system architecture diagram of mixed-power bicycle as shown in Figure 1;
Fig. 3 is the sectional elevation of power unit as shown in Figure 1;
Fig. 4 is the enlarged view of power unit as shown in Figure 1; And
Fig. 5 is the enlarged view of the major part among Fig. 3.
The specific embodiment
One embodiment of the present of invention will describe in conjunction with additional drawing, and wherein components identical is used identical label indication in several views.In the following description, the direction that " the place ahead " expression vehicle advances, " right-hand " and " left " difference presentation surface is to the right side and the left side of vehicle forward direction.
As shown in Figure 1, hybrid vehicle is a whole revolution two-wheel car according to an embodiment of the invention, has a front fork 1, and front-wheel WF axially is supported on the place ahead of vehicle on this front fork.This front fork 1 pivotally is contained in the headstock conduit 2, can turn to by operating handle 3.The downtake 4 that extends to rear and below is fixed on the headstock conduit 2.Central support 5 on even keels trail from the below of downtake 4.In addition, after poppet 6 from the rear of middle support 5 backward and stretch upwards.End pivoting rotation as this power unit 11 that drives propulsion source is installed on the vehicle frame 10 that constitutes in this way.
This power unit 11 has a trailing wheel WR, i.e. drive wheel, and this trailing wheel is rotatably mounted to another rear end, and hangs out from the back seat cushion that is fixed on the after poppet 6, this means with this rotating element to be that the center has constituted a turning unit.In addition, the periphery of vehicle frame 10 is covered by car bonnet 13, and a seat 14 of taking for the person for driving a car is fixed on the rear and upper surface of this car bonnet 13.A pedal that supplies the person for driving a car to place both feet is formed on the place ahead of seat 14.A storage tank 100 that is used to place the helmet or luggage is positioned at the below of seat 14.
As shown in Figure 2, this power unit 11 comprises a driving engine 20, and this driving engine is a combustion engine, but obtains output by burning fuel vapor miscellany.An ACG actuating motor 21a act as an actuating motor and an electrical generator.Toric transmission (power drive) 23 is connected on the bent axle 22, is used for the propulsive effort of driving engine 20 is delivered to trailing wheel WR, and this trailing wheel is a drive wheel.A starting clutch (power engaged/disengaged device) 40 is used to engage and separates the transmission of power between bent axle 22 and the toric transmission drive side.A drive motor 21b act as motor or electrical generator.A free-wheel clutch 44 is used for the propulsive effort of driving engine 20 and drive motor 21b is passed to trailing wheel WR, but the power transmission of trailing wheel WR is not postbacked motivation 20.A reduction gear is used to reduce the output of toric transmission 23, and output is passed to trailing wheel WR.
The propulsive effort of driving engine 20 is passed on the trailing wheel WR by starting clutch 40, toric transmission 23, free-wheel clutch 44, driven shaft 60 and reduction gear from bent axle 22.On the other hand, the propulsive effort of drive motor 21b is passed on the trailing wheel WR by driven shaft 60 and reduction gear.Especially, the driven shaft 60 of toric transmission 23 constitutes the axle drive shaft of trailing wheel WR by reduction gear 69, simultaneously also as the motor output shaft of drive motor 21b.
In conjunction with Fig. 3, below explanation is comprised an embodiment of the power unit 11 of driving engine 20 and drive motor 21b.Driving engine 20 is equipped with a piston 25, and this piston is connected on the bent axle 22 by a connecting rod 24.Piston 25 can move back and forth in the cylinder in the cylinder block 26 72.The layout of cylinder block 26 makes the complete level of the axis of cylinder 27.In addition, a cylinder head 28 is fixed on the front surface of cylinder block 26, and like this, cylinder head 28, cylinder 27 and piston 25 have just formed the combustion chamber 20a of the right gas miscellany that is used to burn together.
Be used for controlling the suction of combustion gas miscellany of combustion chamber 20a and the valve (not illustrating among the figure) and the light-up plug 29 of discharge and be disposed in cylinder head 28.The opening and closing of these valves are to be controlled by the rotation that pivot is placed on the camshaft 30 on the cylinder head 28.One end of this camshaft 30 has 31, one continuous cam chains 33 of a driven chain gear and is wrapped between the driving chain gear on this driven chain gear 31 and bent axle 22 1 ends.Like this, camshaft 30 just connects with the rotation of bent axle 22, thereby can rotate.The water pump 34 that is used for cooled engine 20 also is disposed in an end of this camshaft 30.A turning cylinder 35 and the camshaft 30 of this water pump 34 may integrally rotate.Therefore, if this camshaft rotates, water pump 34 also begins effect.
On the Width of vehicle, a stator case 49 is connected to the left side of crankcase 48, and this crankcase is used to support rotating bent axle 22, and ACG actuating motor 21a is installed in this stator case 49 in addition.This ACG actuating motor 21a is a so-called external rotor formula motor.A stator of this motor is made up of a coil 51, the lead of this coil 51 be wrapped in the tooth 50 that is fixed on this stator case 49 around.On the other hand, an external rotor 52 is fixed on the bent axle 22, and has columniform shape, is covered with the periphery of stator.A magnet 53 also is disposed on the inside face of this external rotor 52.A fan 54a who is used to cool off ACG actuating motor 21a is fixed on external rotor 52.If fan 54a and bent axle 22 rotate synchronously, coolant air will be inhaled into from the cold air admission port on the side surface 55a of the case lid 55 that is formed at stator case 49.
On the Width of vehicle, a change speed gear box (Cell) 59 is connected on the left side of bent axle 48.A fan 54b is arranged in this change speed gear box 59, and this fan is fixed on the left end of bent axle 22, and the drive side of a toric transmission 23 is connected on the bent axle 22 by starting clutch 40, and a drive motor 21b then is connected on the slave end of this toric transmission 23.
Fan 54b is used to cool off toric transmission 23 and the drive motor 21b that is installed in the change speed gear box 59, and with respect to toric transmission 23, this fan is disposed on the same side with drive motor 21b, just the left side on the vehicle-width direction.Cold air admission port 59a is formed at the left side of car body front side and change speed gear box 59.If fan 54b and bent axle 22 synchronously rotate, extraneous air will be inhaled in the change speed gear box 59 by the cold air admission port 59a near fan 54b, thereby makes drive motor 21b and toric transmission 23 forced coolings.
On the other hand, slave end driven pulley 62 by one limited relative driven shaft 60 endwisely slip but the slave end dead sheave halfbody 62a that can do to rotate in a circumferential direction and a projection that is fixed on slave end dead sheave halfbody 62a and the slave end movable sheave halfbody 62b that can slide are in the axial direction formed.Ring-type vee-belt 63 is wrapped in the belt groove, and this belt groove has and is formed between drive side dead sheave halfbody 58a and the drive side movable sheave halfbody 58c respectively and is formed at V-type cross section between slave end dead sheave halfbody 62a and the slave end movable sheave halfbody 62b.The spring 64 that is used for usually slave end movable sheave halfbody 62b being pressed to slave end dead sheave halfbody 62a is arranged in the rear surface (left side of vehicle-width direction) of this slave end movable sheave halfbody 62b.
In this structure, if the rotating speed of bent axle 22 raises, for driving driven pulley 58, centnifugal force will act on the gravity roller 58b, and drive side movable sheave halfbody 58c will slide to the side of drive side dead sheave halfbody 58a.Drive side movable sheave halfbody 58c draws closer together to drive side dead sheave halfbody 58a by the degree of sliding.Because the recess width of drive side driven pulley 58 reduces, the contact position slippage of drive side driven pulley 58c and V-shape belt 63 is to the radially more outer position of drive side driven pulley 58, so that the increasing around diameter of V-shape belt.Like this, in slave end driven pulley 62, the recess width that is formed by slave end dead sheave halfbody 62a and slave end movable sheave halfbody 62b also increases thereupon.Especially, along with bent axle 22 change in rotational speed, the cooling diameter of V-shape belt (drive diameter) also changes continuously, and speed ratio also just changes automatically and continuously.
Starting clutch 40 is positioned at than on the more outer position (being the left side of vehicle-width direction in the present embodiment) of toric transmission 23, promptly, between drive side dead sheave halfbody 58a and fan 54b, and near the cold air admission port 59a that is formed in the change speed gear box 59.This starting clutch 40 has the shell 40a of a hat-shaped, this shell is fixed on the axle sleeve 58d, an outer dish 40b, be fixed on the left end of bent axle 22, a shoe plate 40d is fixed on by a counterweight 40c on the outward flange of outer dish 40b, thereby facing to radially outer direction, and a spring 40e, be used for oppressing radially outwardly shoe plate 40d.
According to this structure, if the speed of driving engine, the rotating speed of bent axle 22 just, when being lower than a particular value (for example 3000rpm), the propulsive effort transmission between bent axle 22 and the toric transmission 23 just is interrupted.If engine speed raises, when the rotating speed of bent axle 22 surpasses this particular value, the centnifugal force that then acts on the counterweight 40c will overcome the thrust that spring radially inwardly acts on, and counterweight 40c shifts to radial outside, thereby shoe plate 40d is with an inner circumferential surface of defeating tight shell 40a bigger than particular value.In this way, the rotating speed of bent axle 22 is delivered on the axle sleeve 58d by shell 40, and the drive side driven pulley 58 that is fixed on the axle sleeve 59 is driven.
Free-wheel clutch 44 comprises the outer power-transfer clutch 44a of a cup-shaped, one with the concentric also compacted internal clutch 44b of outer power-transfer clutch, and transmission that makes turning effort can only folk prescription to ground the roller 44c from internal clutch 44b to outer power-transfer clutch 44a.Outer power-transfer clutch 44a is also as the internal rotor body of drive motor 21b, and with the internal rotor body be same parts.In addition, the left end of the projection of the inner periphery of internal clutch 44b and slave end dead sheave halfbody 62a interconnects with spline.In this way, this free-wheel clutch 44 is disposed in the internal rotor 80 of the drive motor 21b that forms the internal rotor shape, and is disposed on the vehicle-width direction with on the close position of the spring on rear surface one side (left side of vehicle-width direction) of slave end movable sheave halfbody 62b 64.
In this structure, on the one hand, be delivered to the propulsive effort of the slave end driven pulley 62 of toric transmission 23 from driving engine 20, by slave end dead sheave halfbody 62a, internal clutch 44b, outer power-transfer clutch 44a---be the internal rotor body, driven shaft 60 and reduction gear 69 and be passed on the trailing wheel WR.But on the other hand, when promoting vehicle or regeneration motion, the propulsive effort that comes from trailing wheel WR is transmitted back reduction gear 69, driven shaft 60 and internal rotor body---promptly outside power-transfer clutch 44a.But owing to outer power-transfer clutch 44a slides with respect to internal clutch 44b, so this propulsive effort can not be delivered on reduction gear and the driving engine 20.
Driven shaft 60 is disposed in for the inner-rotor-type drive motor 21b of motor output shaft on the position of rear view of vehicle of change speed gear box 59.That is, drive motor 21b is fixed on the reduction gear 69 by driven shaft 60 according to an embodiment of the invention, and motor output shaft, promptly driven shaft 60, then are arranged to the Width towards vehicle.Internal rotor 80 is by driven shaft 60---and be the output shaft of toric transmission 23, the cup-shaped internal rotor---be internal clutch 44b, utilization is formed at a projection 80b on the central unit and is assembled to spline on the driven shaft, and a magnet 80c who is arranged on the internal clutch 44b open side outside face forms.The element that rotor sensor 81 on a plurality of inwall 59A that will be fixed on change speed gear box 59 is detected is fixed on the bottom outer surface of internal clutch 44b.On the other hand, stator 83 is made up of coil 83c, and the lead of this coil 83c is wrapped on the tooth 83b that is fixed in the stator case 83a in the change speed gear box 59.
In addition, this drive motor 21b is directly installed on by stator case 83a on the inwall 59A of cast iron change-speed box 59, and a plurality of cooling fin 59b that extend to rear view of vehicle are arranged on the outer wall 59B (motor accessories part outside face) of the change speed gear box 59 of corresponding direct mount position equidistantly.That is, on planar view, be disposed in (left side) on the position more outer, that is to say,, and toric transmission is clipped in the middle on the opposite of reduction gear than toric transmission at drive motor 21b on the vehicle-width direction.In addition, see to a side of vehicle in the drawings that drive motor 21b is positioned to the line between the axle 68 that is higher than bent axle 22 and trailing wheel WR, and more forward than axle 68.That is to say, axle drive shaft 60, promptly the output shaft of drive motor 21b is positioned at than on the higher position of straight line L.
The control unit 7 that is used to control driving engine 20, ACG actuating motor 21a and drive motor 21b is control setups that comprise CPU (central processing unit), ROM (read-only memory (ROM)) and RAM (random access storage device).This control unit 7 obtains corresponding information from some devices, these install as be used to detect the engine load sensor of the aperture of throttle gate 17, B/P EGR Back Pressure Transducer EGR 19, rotor sensor 57,81 etc.This control unit 7 is exported specific control signal in ACG actuating motor 21a and drive motor 21b actuator 90,91 separately, and outputs to the ignition device that is used for start the engine 20 light-up plugs 29.
For hybrid vehicle, when fire an engine, utilize the ACG actuating motor 21a on the bent axle 22 that bent axle is rotated with said structure.At this moment, starting clutch 40 does not engage, and 23 propulsive effort transmission is interrupted from bent axle 22 to toric transmission.Then, with the rotational synchronization of bent axle 22, be inhaled into fuel gas mixture in the cylinder 72 by spark ignitor, piston 25 is reciprocating thereupon.Then, operational ton according to the throttling handle, if the rotating speed of bent axle 22 surpasses a particular value (for example 3000rpm), the turning effort of bent axle 22 will be passed on toric transmission 23, free-wheel clutch 44 and the reduction gear 69 by starting clutch 40, thereby drives trailing wheel WR.
When starting, since the supply of battery 74, drive motor 21b starting, and the propulsive effort that can pass through driving engine be assisted the rotation of driven shaft 60.In addition, the driving engine 20 that utilizes of replacement starts, and also can only utilize drive motor 21b to start.In this case, because the effect of free-wheel clutch 44, the rotation of the driven shaft 60 when utilizing drive motor 21b does not pass on the slave end driven pulley 62, and toric transmission 23 is not driven yet.In this way, when travelling when only driving trailing wheel WR with drive motor 21b, the efficient of transfer of energy is improved.
When only travelling, if load is bigger, as quickening or when running at high speed, also can utilizing drive motor 21b to come auxiliary engine to travel with driving engine 20.At this moment, because the crank motion of piston 25 makes the turning effort of bent axle 22 be passed on driven shaft 60, toric transmission 23 and the free-wheel clutch 44 by starting clutch 40.In addition, the propulsive effort of drive motor 21b is also transmitted by free-wheel clutch 44, and the power of this combination drives trailing wheel WR by reduction gear 69.On the contrary, when only travelling, can utilize driving engine 20 to come helper motor to travel with drive motor 21b.
When only travelling as drive source with drive motor 21b, when the speed of a motor vehicle is stablized (driving at a slow speed), if the rotating speed of the starting clutch 40 that engages is lower than above-mentioned particular value, even driving engine 20 is in work, inorganic change-speed box 23 is not driven yet, but can utilize ACG actuating motor 21a to produce electric energy.When this speed stabilizing was travelled, when only using drive motor 21b as drive source, the transmission of power from drive motor 21b to trailing wheel WR carried out under the situation that does not drive toric transmission, this means that the efficient of transfer of energy is improved.
When slowing down, free-wheel clutch 44 can not pass to the rotation of driven shaft 60 on the slave end driven pulley 62 of toric transmission, this means that toric transmission is not driven, and can directly drive motor 21b be transmitted back in the rotation of axle 68 by reduction gear.Especially, when the regenerative drives from trailing wheel WR to drive motor 21b, the propulsive effort that is delivered to drive motor 21b from trailing wheel WR can't be by toric transmission consumption, and charge efficiency is improved when therefore regenerating.
As mentioned above, in hybrid vehicle according to an embodiment of the invention, drive motor 21b is connected to reduction gear 69, promptly on the driven shaft 60.Therefore, can utilize reduction gear between toric transmission 23 and the trailing wheel WR with the power of drive motor 21b through slowing down and being delivered on the trailing wheel WR.Consider this point, be directly connected on the axle 68, between toric transmission 23 and trailing wheel WR, do not have the motor direct-type power unit of reduction gear to compare that it can obtain following effect with drive motor 21b.Especially, though the power that drive motor 21b produces under two kinds of situations equate, even finally will reduce,, so can prevent the increase of amount of parts because it needn't add extra reduction gear between toric transmission 23 and trailing wheel WR in the speed of a motor vehicle.On the other hand, when the power that finally passes to trailing wheel is divided equally, can further reduce the size of motor 21b.
Except above-mentioned structure, drive motor 21b is disposed in the opposite of reduction gear 60, and toric transmission 23 is clipped in the middle.Therefore, Ben Chong drive motor 21b and reduction gear 69 are separated on toric transmission 23 Widths (L-R direction).On a side of vehicle, drive motor 21b is disposed on the position of the line L that is higher than bent axle 22 and axle 68.Like this, the drive motor 21b of hybrid vehicle is---in general bigger---to be positioned on the higher position, and for sulky vehicle, drive motor 21b arranges like this, can make the vertical on the Width of vehicle of motor output shaft (driven shaft 60), purpose is in order to guarantee bigger angle of inclination.In addition, because motor output shaft is disposed in than on the more preceding position of axle 68, therefore can reduce the longitudinal length of vehicle.
In addition, in the present embodiment, can folk prescription power be delivered to the free-wheel clutch 44 of driven shaft 60 from toric transmission 23 by between toric transmission 23 and driven shaft 60, being provided with one, always be cut off to the transmission of power driving engine 20 sides from driven shaft 60 sides to ground.Therefore, when the regenerative drives that switches to from trailing wheel WR to drive motor 21b, except above-mentioned lock out operation no longer needs, owing to be delivered to the propulsive effort of drive motor 21b and consume without toric transmission 23 from trailing wheel WR in when generating, so charge efficiency is improved.In addition, when drive source only switches to drive source and is drive motor 21b for the state of driving engine 20, owing to no longer need a drive source blocked operation, and the power that is delivered to trailing wheel from drive motor 21b when only utilizing drive motor 21b to travel is used for driving toric transmission 23, therefore can improve energy transfer efficiency.In addition, because free-wheel clutch 44 is used as the unidirectional power driving device, even therefore use centrifugal clutch also can reduce the size of power unit 11.
Because the structure of drive motor 21b is an inner-rotor-type, and free-wheel clutch 44 is disposed in the inside of internal rotor 80, even therefore because specification need and make that inevitably the size of internal rotor 80 is bigger, also can effectively utilize its volume inside, also can reduce the size of this power unit 11 simultaneously.Because it is close with the spring 64 of pushing slave end movable sheave halfbody 62b on vehicle-width direction that toric transmission 23 is positioned to, thereby can effectively utilize near the dead band that occurs the spring 64, also can reduce the size of power unit 11.
In addition, in the present embodiment, starting clutch 40 is between bent axle 22 and toric transmission 23.When the rotating speed of bent axle 22 surpassed a particular value, the turning effort of bent axle 22 just was passed on the toric transmission 23, this means to obtain following effect.Especially, owing to the power transmission between bent axle 22 when engine speed is lower than particular value and the toric transmission 23 is cut off, trailing wheel is no longer driven by driving engine, and will be driven by the drive motor 21b that has under low speed than high pulling torque usually.In this way, can under low engine speed range, reduce the driving loss.In addition, when engine speed is low, under in idling, because the turning effort of bent axle 22 do not consume by toric transmission, but be converted into electric energy effectively, so the generating efficiency of ACG actuating motor 21a is improved by ACG actuating motor 21a.
Because power drive is not driven the therefore generation that can suppress to rub under situations such as wait traffic lights signal.
In addition, in the present embodiment, because starting clutch 40 and drive motor 21b are disposed on the position than toric transmission 23 more outer (on the vehicle-width directions), therefore by opening the change speed gear box 59 that these devices are housed simply, outside just starting clutch 40 and drive motor 21b can being exposed to.Can improve maintainable and touching property like this.In addition, owing to starting clutch 40 and drive motor 21b are disposed on the same side with respect to toric transmission 23, therefore than other arrangement forms as toric transmission is surrounded, it can reduce the size of Width.Because starting clutch 40 is disposed in the cold air admission port 59a next door that is formed at change speed gear box 59, therefore can utilize the air that is drawn into the change speed gear box from cold air admission port 59a that starting clutch 40 is carried out forced cooling, thereby improve the cooling power of starting clutch 40.Because starting clutch and drive motor 21b are disposed in the opposite of ACG actuating motor 21a, toric transmission 23 is clipped in the middle, therefore, be disposed in starting clutch 40 and drive motor 21b on the same side with respect to toric transmission 23, and, on vehicle-width direction, be separated to lay respectively at the left side and the right side of toric transmission 23 compared with dynamic clutch 40 and the heavier ACG actuating motor 21a of drive motor 21b.
In addition, in the present embodiment, fan 54b is connected on the bent axle 22, and, drive motor 21b and fan 54b are arranged in the change speed gear box 59 with respect to toric transmission 23 the same sides, so fan 54b is with bent axle 22 rotation, thus change speed gear box 59 in the generation eddy current.The heat of cooling bigger drive motor 21 that dissipates effectively so just.In addition, even at the wind that do not flow---such as also carrying out forced cooling under the situation of waiting for the traffic lights signal to drive motor 21b.Because drive motor 21b is fixed on the inwall 59A of change speed gear box 59, the heat that drive motor 21b is produced is directly transferred to box outer surface and the mobile air cooling of quilt, thereby raising cooling effectiveness, because the eddy current that can utilize the fan 54b in the change speed gear box 59 to produce cools off, therefore can improve the cooling power of drive motor 21b in addition.Because cooling fin 59b is arranged on the drive motor accessories section outside face of change speed gear box 59, therefore can further utilize the wind that flows to improve cooling power in addition.
As mentioned above, in hybrid vehicle according to an embodiment of the invention, fan 54b is connected on the bent axle 22, and drive motor 21b and fan 54b with respect to toric transmission 23 in the same side is arranged in change speed gear box 59.Like this, fan 54b rotates with bent axle 22, thereby produces eddy current in change speed gear box 59.Therefore can cool off drive motor 21 effectively with big heat dissipation capacity.In addition, even at the wind that do not flow---such as also carrying out forced cooling under the situation of under idling, waiting for the traffic lights signal to drive motor 21b.Because drive motor 21b is fixed on the inwall 59A of change speed gear box 59, the heat that drive motor 21b is produced is directly transferred to box outer surface and the mobile air cooling of quilt, thereby the raising cooling effectiveness, and the eddy current that can utilize the fan 54b in the change speed gear box 59 to be produced cools off.Therefore can improve the cooling power of drive motor 21b.Because cooling fin 59b is arranged on the drive motor accessories section outside face of change speed gear box 59, therefore can further utilize the wind that flows to improve cooling power in addition.
In addition, in the present embodiment, can folk prescription to ground power be delivered to the free-wheel clutch 44 of driven shaft 60 from toric transmission 23 by be provided with one between toric transmission 23 and driven shaft 60, driven shaft 60 always is cut off to the transmission of power between the driving engine 20.Therefore, when the regenerative drives that switches to from trailing wheel WR to drive motor 21b, except above-mentioned lock out operation no longer needs, owing to be delivered to the propulsive effort of drive motor 21b and without toric transmission 23 from trailing wheel WR in when generating, so charge efficiency is improved.In addition, when drive source only switches to drive source and is drive motor 21b for the state of driving engine 20, no longer need a drive source to come blocked operation.In addition, the power that is delivered to trailing wheel WR from drive motor 21b when travelling only utilizing drive motor 21b is used for driving toric transmission 23, therefore can improve energy transfer efficiency.In addition, free-wheel clutch 44 is used as the unidirectional power driving device.Even therefore use centrifugal clutch also can reduce the size of power unit 11.
The structure of drive motor 21b is an inner-rotor-type, and free-wheel clutch 44 is disposed in the inside of internal rotor 80.Therefore, even, also can effectively utilize its in-to-in dead band because specification needs and makes that inevitably the size of internal rotor 80 is bigger.Also can reduce simultaneously the size of this power unit 11.It is close with the spring 64 of pushing slave end movable sheave halfbody 62b on vehicle-width direction that toric transmission 23 is positioned to.Therefore, can effectively utilize near the dead space volume the spring 64, also can reduce the size of power unit 11 simultaneously.
In addition, starting clutch 40 is between bent axle 22 and toric transmission 23.When the rotating speed of bent axle 22 surpasses a particular value, and when being delivered on the toric transmission 23, can obtain following effect.Especially, the power transmission when engine speed is lower than particular value between bent axle 22 and the toric transmission 23 is cut off, and therefore, trailing wheel is no longer driven by driving engine, and will be driven by the drive motor 21b that has under low speed than high pulling torque usually.In this way, can under low engine speed range, reduce the driving loss.In addition, when engine speed was low, under in idling, the turning effort of bent axle 22 was not consumed by toric transmission, but is converted into electric energy effectively by ACG actuating motor 21a, so the generating efficiency of ACG actuating motor 21a is improved.In addition, power drive is not driven the therefore generation that can suppress to rub under situations such as wait traffic lights signal.
In addition, in the present embodiment, starting clutch 40 and drive motor 21b are disposed on the position than toric transmission 23 more outer (on the vehicle-width directions), therefore, by opening the change speed gear box 59 that these devices are housed simply, outside just starting clutch 40 and drive motor 21b can being exposed to.Can improve maintainable and touching property like this.In addition, starting clutch 40 and drive motor 21b are disposed on the same side with respect to toric transmission 23, and therefore than other arrangement forms as toric transmission is surrounded, it can reduce the size of Width.In addition, starting clutch 40 is disposed in the cold air admission port 59a next door that is formed in the change speed gear box 59, therefore can utilize the air that is drawn into the change speed gear box from cold air admission port 59a that starting clutch 40 is carried out forced cooling, thereby improve the cooling power of starting clutch 40.In addition, starting clutch and drive motor 21b are disposed in the opposite of ACG actuating motor 21a, toric transmission 23 is clipped in the middle, therefore, be disposed in starting clutch 40 and drive motor 21b on the same side with respect to toric transmission 23, and, on the vehicle-width direction (L-R) of buncher 23, be separated compared with dynamic clutch 40 and the heavier ACG actuating motor 21a of drive motor 21b.
In addition, drive motor 21b is connected to reduction gear 69, promptly on the driven shaft 60.Therefore, can utilize reduction gear between toric transmission 23 and the trailing wheel WR with the power of drive motor 21b through slowing down and being delivered on the trailing wheel WR.Like this, be directly connected on the axle 68, do not have the motor direct-type power unit of reduction gear to compare between toric transmission 23 and trailing wheel WR with drive motor 21b, it can obtain following effect.Especially, though the power that drive motor 21b produces under two kinds of situations equate, even the speed of a motor vehicle finally also will be slowed down,, so can avoid the increase of amount of parts because it needn't add extra reduction gear between toric transmission 23 and trailing wheel WR.On the other hand, when the power that finally passes to trailing wheel is divided equally, can further reduce the size of motor 21b.
Except above-mentioned structure, drive motor 21b is disposed in the opposite of reduction gear 60, and toric transmission 23 is clipped in the middle.Therefore, Ben Chong drive motor 21b and reduction gear 69 are separated on toric transmission 23 Widths (L-R).In addition, on a side of vehicle, drive motor 21b is disposed on the position of the line L that is higher than bent axle 22 and axle 68.Like this, the drive motor 21b of hybrid vehicle is---in general bigger---to be positioned on the higher position, and for sulky vehicle, drive motor 21b arranges like this, can make the vertical on the Width of vehicle of motor output shaft (driven shaft 60), purpose is in order to guarantee bigger angle of inclination.In addition, because motor output shaft is disposed in than on the more preceding position of axle 68, therefore can reduce the longitudinal length of vehicle.
As mentioned above, in the hybrid vehicle in according to one embodiment of present invention, starting clutch 40 is between bent axle 22 and toric transmission 23.When the rotating speed of bent axle 22 surpasses a particular value and when being passed on the toric transmission 23, can obtain following effect.Especially, the power transmission when engine speed is lower than particular value between bent axle 22 and the toric transmission 23 is cut off, and therefore, trailing wheel is no longer driven by driving engine, and can be driven by the drive motor 21b that has under low speed than high pulling torque usually.In this way, can under low engine speed range, reduce the driving loss.In addition, when engine speed was low, under in idling, the turning effort of bent axle 22 was not consumed by toric transmission, but is converted into electric energy effectively by ACG actuating motor 21a, so the generating efficiency of ACG actuating motor 21a is improved.Because power drive is not driven the therefore generation that can suppress to rub under situations such as wait traffic lights signal.
In addition, in the present embodiment, starting clutch 40 and drive motor 21b are disposed on the position than toric transmission 23 more outer (on the vehicle-width directions), therefore, by opening the change speed gear box 59 that these devices are housed simply, outside just starting clutch 40 and drive motor 21b can being exposed to.Can improve maintainable and touching property like this.In addition, starting clutch 40 and drive motor 21b are disposed on the same side with respect to toric transmission 23, and therefore than other arrangement forms as toric transmission is surrounded, it can reduce the size of Width.Starting clutch 40 is disposed in the cold air admission port 59a next door that is formed on the change speed gear box 59, therefore can effectively utilize the air that is drawn into the change speed gear box from cold air admission port 59a carries out forced cooling to starting clutch 40, thereby improves the cooling power of starting clutch 40.In addition, starting clutch 40 and drive motor 21b are disposed in the opposite of ACG actuating motor 21a, toric transmission 23 is clipped in the middle, therefore, be disposed in starting clutch 40 and drive motor 21b on the same side with respect to toric transmission 23, and, on the vehicle-width direction (L-R direction) of buncher 23, be separated compared with dynamic clutch 40 and the heavier ACG actuating motor 21a of drive motor 21b.
In addition, in the present embodiment, can folk prescription power be delivered to the free-wheel clutch 44 of driven shaft 60 from toric transmission 23 by between toric transmission 23 and driven shaft 60, being provided with one, always be cut off to the transmission of power driving engine 20 sides from driven shaft 60 sides to ground.Therefore, when the regenerative drives that switches to from trailing wheel WR to drive motor 21b, except above-mentioned lock out operation no longer needed, the propulsive effort that is delivered to drive motor 21b from trailing wheel WR when energy regeneration was not consumed by toric transmission 23, so charge efficiency is improved.In addition, when drive source only switches to drive source only for the state of drive motor 21b for the state of driving engine 20, no longer need a drive source to come blocked operation, and the power that is delivered to trailing wheel WR from drive motor 21b when travelling only utilizing drive motor 21b consumes by driving toric transmission 23, therefore can improve energy transfer efficiency.In addition, because free-wheel clutch 44 is used as the unidirectional power driving device, even therefore use centrifugal clutch also can reduce the size of power unit 11.
The structure of drive motor 21b is an inner-rotor-type, and free-wheel clutch 44 is disposed in the inside of internal rotor 80.Therefore, even, also can effectively utilize its in-to-in dead space volume, also can reduce the size of this power unit 11 simultaneously because specification needs and makes that inevitably the size of internal rotor 80 is bigger.In addition, toric transmission 23 is positioned to close with the spring 64 of pushing slave end movable sheave halfbody 62b on vehicle-width direction.Therefore, can effectively utilize near the dead space volume the spring 64, also can reduce the size of power unit 11 simultaneously.
In addition, in the present embodiment, fan 54b is connected on the bent axle 22, and drive motor 21b and fan 54b are arranged in the change speed gear box 59 with respect to toric transmission 23 the same sides.Like this, fan 54b rotates with bent axle 22, thereby produces eddy current in change speed gear box 59.Therefore can cool off drive motor 21 effectively with big heat dissipation capacity.In addition, even at the wind that do not flow---such as under idling, waiting under the situation of traffic lights signal, also can carry out forced cooling to drive motor 21b.In addition, because drive motor 21b is fixed on the inwall 59A of change speed gear box 59, the heat that drive motor 21b is produced is directly transferred to box outer surface and the mobile air cooling of quilt, thereby can improve cooling effectiveness, the eddy current that can also utilize the fan 54b in the change speed gear box 59 to be produced in addition cools off.Therefore can improve the cooling power of drive motor 21b.Because cooling fin 59b is arranged on the drive motor accessories section outside face of change speed gear box 59, therefore can further utilize the wind that flows to improve cooling power in addition.
In addition, because drive motor 21b is connected to reduction gear 69 in the present embodiment, be on the driven shaft 60, therefore, can utilize reduction gear between toric transmission 23 and the trailing wheel WR with the power of drive motor 21b through slowing down and being delivered on the trailing wheel WR.Like this, be directly connected on the axle 68, do not have the motor direct-type power unit of reduction gear to compare between toric transmission 23 and trailing wheel WR with drive motor 21b, it can obtain following effect.Especially, though the power that the drive motor 21b of two kinds of unit produces equates, even the speed of drive motor 21b finally must reduce, but, therefore can avoid the increase of amount of parts because it needn't add extra reduction gear between toric transmission 23 and trailing wheel WR.On the other hand, when the power that finally passes to trailing wheel is divided equally, can further reduce the size of motor 21b.
Except above-mentioned structure, drive motor 21b is disposed in the opposite of reduction gear 60, and toric transmission 23 is clipped in the middle.Therefore, Ben Chong drive motor 21b and reduction gear 69 are separated on the Width (L-R) of toric transmission 23.On a side of vehicle, because drive motor 21b is disposed on the position of the line L that is higher than bent axle 22 and axle 68, the drive motor 21b of hybrid vehicle is---in general bigger---to be positioned on the higher position, and for sulky vehicle, drive motor 21b arranges like this, can make the vertical on the Width of vehicle of motor output shaft (driven shaft 60), purpose is in order to guarantee bigger angle of inclination.In addition, because motor output shaft is disposed in than on the more preceding position of axle 68, therefore can reduce the longitudinal length of vehicle.
The present invention never is subject to each above-mentioned embodiment, in not departing from spiritual scope of the present invention, can carry out various design changes.For example, the present invention is not restricted to the two-wheel vehicle; The present invention also can be applied on the vehicle of other movable bodies such as three-wheel or four-wheel.In addition, in the above-described embodiment, a kind of belt-type converter (toric transmission 23) is used as power drive, but also can use other gear mechanisms.The installation site of drive motor 21b is not limited on the trailing wheel, also can be installed on the front-wheel.Equally also drive motor 21b can be connected on the tween drive shaft 73 of reduction gear.
For above-mentioned the present invention, clearly same parts can change in various manners.This variation is to be regarded as departing from the spirit and scope of the present invention, and is that clearly this variation should be included in the scope of following claim for those skilled in the art.
Claims (6)
1. hybrid vehicle power unit comprises:
Driving engine;
First motor is connected on the bent axle of driving engine, and act as an actuating motor and an electrical generator;
Power drive, described power drive passes to driven wheel side with the turning effort of bent axle;
Axle drive shaft is connected to the slave end of power drive, is connected with drive wheel simultaneously;
Second motor is connected on the axle drive shaft, and act as at least one motor;
Power engaged/disengaged device, between bent axle and power drive, described power engaged/disengaged device passes to power drive with the turning effort of bent axle when crankshaft rotating speed surpasses a particular value; And
Be arranged on the free-wheel clutch on the driven shaft, described free-wheel clutch is given the trailing wheel transferring power from described driving engine and drive motor, but not from trailing wheel to the driving engine transferring power.
2. according to this hybrid vehicle power unit of claim 1, wherein said free-wheel clutch is arranged in the internal rotor of drive motor.
3. according to this hybrid vehicle power unit of claim 2, the outer power-transfer clutch of wherein said free-wheel clutch is as the internal rotor body of drive motor, and is made of same parts with described internal rotor body.
4. according to this hybrid vehicle power unit of claim 1, power engaged/disengaged device wherein is disposed on the vehicle-width direction than on the power drive position more in the outer part.
5. according to this power unit structure for hybrid vehicle of claim 1, wherein in the change speed gear box of power drive is installed, have admission port, and power engaged/disengaged device is disposed near on the position of admission port.
6. according to this power unit structure for hybrid vehicle of claim 1, the power engaged/disengaged device wherein and second motor are disposed in the opposite of first motor, surround power drive.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003338824A JP3967309B2 (en) | 2003-09-29 | 2003-09-29 | Power unit in a hybrid vehicle |
| JP338824/2003 | 2003-09-29 | ||
| JP2003338825A JP2005104248A (en) | 2003-09-29 | 2003-09-29 | Power unit in hybrid vehicle |
| JP338825/2003 | 2003-09-29 | ||
| JP338823/2003 | 2003-09-29 | ||
| JP2003338823A JP2005104246A (en) | 2003-09-29 | 2003-09-29 | Power unit structure for hybrid vehicle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100120669A Division CN100394073C (en) | 2003-09-29 | 2004-09-28 | Power unit structure for hybrid vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101037132A CN101037132A (en) | 2007-09-19 |
| CN101037132B true CN101037132B (en) | 2010-10-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100919389A Expired - Fee Related CN101037132B (en) | 2003-09-29 | 2004-09-28 | Power unit structure for hybrid vehicle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2005104246A (en) |
| CN (1) | CN101037132B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20061157A1 (en) * | 2006-06-15 | 2007-12-16 | Piaggio & C Spa | METHOD OF MANAGEMENT OF THE FUNCTIONING MODES OF A HYBRID MOTOR-POWERED UNIT OPERATING THE SAME |
| ITMI20070528A1 (en) * | 2007-03-16 | 2008-09-17 | Piaggio & C Spa | HYBRID PROPULSION AND TRANSMISSION SYSTEM FOR MOTOR VEHICLES |
| US8459390B2 (en) * | 2008-10-15 | 2013-06-11 | Getrag Ford Transmissions Gmbh | Vehicle having drive train |
| CN104442349A (en) * | 2014-11-10 | 2015-03-25 | 北京汽车研究总院有限公司 | Hybrid power system and full-time four wheel drive sport utility vehicle |
| CN105156670A (en) * | 2015-10-14 | 2015-12-16 | 无锡市永亿精密铸造有限公司 | Shifting fork with fan impellers for heat dissipation |
| JP6894734B2 (en) * | 2017-03-22 | 2021-06-30 | 川崎重工業株式会社 | Hybrid vehicle |
| CN110799416B (en) * | 2017-06-20 | 2021-10-22 | Tvs电机股份有限公司 | Drive system for two-wheeled vehicle |
| EP3704012B1 (en) * | 2017-11-02 | 2021-09-15 | Piaggio & C. S.P.A. | Electric drive motorcycle |
| WO2019086421A1 (en) * | 2017-11-02 | 2019-05-09 | Piaggio & C. S.P.A. | Electric drive motorcycle |
| US10465602B2 (en) * | 2018-04-04 | 2019-11-05 | GM Global Technology Operations LLC | System and method for managing zero pedal maneuver in hybrid powertrain having a variable-geometry turbocharger |
| WO2021149145A1 (en) * | 2020-01-21 | 2021-07-29 | ヤマハ発動機株式会社 | Manual-transmission-type straddled vehicle |
| WO2021149146A1 (en) * | 2020-01-21 | 2021-07-29 | ヤマハ発動機株式会社 | Manual-transmission straddled vehicle |
| WO2021149144A1 (en) * | 2020-01-21 | 2021-07-29 | ヤマハ発動機株式会社 | Manual-transmission straddled vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101037132A (en) | 2007-09-19 |
| JP2005104246A (en) | 2005-04-21 |
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