CN103568766A - Control system and control method for motor vehicle chassis - Google Patents
Control system and control method for motor vehicle chassis Download PDFInfo
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- CN103568766A CN103568766A CN201310517797.8A CN201310517797A CN103568766A CN 103568766 A CN103568766 A CN 103568766A CN 201310517797 A CN201310517797 A CN 201310517797A CN 103568766 A CN103568766 A CN 103568766A
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- adjustment mechanism
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Abstract
The invention discloses a control system for a motor vehicle chassis. The control system comprises a vehicle central control module and a vehicle suspension system, wherein the vehicle suspension system comprises a connecting bracket, a vehicle body spring and a shock absorber; a spring pre-adjustment mechanism is arranged on the vehicle body spring and comprises a piston cylinder assembly, a control assembly and a high-pressure oil pipe; the vehicle central control module is connected with a vehicle shock absorption system through a CAN (controller area network) bus and is connected with a vehicle detection system; the vehicle detection system comprises a detection radar, a camera and a control unit. According to the control system, a chassis system is associated with the vehicle central control module to form a chassis control system, and a chassis execution mechanism can be used for pre-judging road situations in real time according to a signal from the central control module, so that the defects in the prior art are overcome and the comfortableness of a vehicle is greatly improved.
Description
Technical field
The invention belongs to motor-vehicle chassis system and control manufacturing technology field, specifically, relate to a kind of motor-vehicle chassis control system and control method thereof.
Background technology
In orthodox car technology, car chassis is comprised of transmission system, running device, steering system and brake system four parts conventionally.Chassis effect is supporting, installation automotive engine and each parts thereof, assembly, forms the moulded of automobile, and accepts the power of driving engine, makes automobile produce motion, guarantees normally to travel.
Car chassis also comprises car shock mitigation system, and described car shock mitigation system is arranged between automobile axle shaft and auto body.Because outskirts of a town and rural road surface are reported to the leadship after accomplishing a task, especially when repair on road surface in most cases, road surface all can produce many obstacles or potted road surface mostly, at this time our car one does not note allowing boulder or other road surface protrusions on road surface contact with the chassis of own vehicle when reaching such road surface, and what namely we often said drags at the end.Owing to dragging this situation of the end to there is uncertainty, therefore be easy to cause damage to the part that is positioned at chassis portion, as: the fragmentation of ternary catalyzing unit shell, engine sump tank crackle, gear box casing crackle or suspension distortion etc., the generation of these problems brings very fatal damage will to your car.
Therefore there is following many defects in chassis system of the prior art:
1, chassis system of the prior art, when potted road surface, usually can contact with the protrusion on road surface, makes vehicle chassis drag the end, causes vehicle damage.
2, chassis system of the prior art, owing to can not constantly chassis being adjusted according to road surface situation, makes the non-constant of comfort level of vehicle.
3, chassis system of the prior art, carries out anticipation to the road conditions that repeat, and can not to chassis system, adjust in advance, makes the traveling comfort of vehicle poor.
Summary of the invention
Technical matters to be solved by this invention is that chassis system of the prior art, when potted road surface, usually can contact with the protrusion on road surface, makes vehicle chassis drag the end, causes vehicle damage; Owing to can not constantly chassis portion height being adjusted according to road surface situation, make the non-constant of comfort level of vehicle; Can not carry out anticipation to the road conditions that repeat, can not to chassis system, adjust in advance, make the technical matterss such as the traveling comfort of vehicle is poor, and a kind of motor-vehicle chassis control system and control method thereof are provided.
Technical conceive provided by the present invention is while running into rugged road surface due to chassis system of the prior art, usually to drag at the end, thereby cause vehicle damage; Owing to can not constantly chassis portion height being adjusted according to road surface situation, make the non-constant of comfort level of vehicle; The road conditions that repeat are carried out to anticipation, can not to chassis system, adjust in advance, make the technical matterss such as the traveling comfort of vehicle is poor; The invention provides a kind of technical conceive, chassis system and the foundation of vehicle central control module are contacted, form chassis control system, by chassis actuating unit according to the signal of Central Control Module (CCM), dynamically adjust constantly, overcome defect of the prior art, greatly improved the comfort level of vehicle.
Technical scheme provided by the present invention is, a kind of motor-vehicle chassis control system, comprise vehicle central control module, and vehicle suspension system, described vehicle suspension system comprises connection bracket, vehicle body spring and bumper, described vehicle body spring is provided with spring preset adjustment mechanism, and described spring preset adjustment mechanism comprises piston cylinder assembly, controls assembly and high pressure fuel pipe; Described vehicle central control module is connected by CAN bus with described spring preset adjustment mechanism, and described vehicle central control module is connected with motor vehicle-detecting system, and described motor vehicle-detecting system comprises acquisition radar, camera and control unit.
Described bumper is arranged on described vehicle body spring inner, and described spring preset adjustment mechanism is arranged on described vehicle body spring outside.
The predetermincd tension that described spring preset adjustment mechanism applies to described vehicle body spring is greater than the predetermincd tension that described dead weight of vehicle applies to vehicle body spring.
Described radar is arranged on self-propelled vehicle bumper/spoiler middle part or air-inlet grille middle part foremost, and mounting means is embedded fixed installation.
Described front end camera is arranged on self-propelled vehicle bumper/spoiler middle part or air-inlet grille middle part or outside rear-view mirror front end foremost, and mounting means is embedded fixed installation.
Described spring preset adjustment mechanism also comprises top board, lower platen, pressing plate guide pillar and apparatus for regulating, at described top board and lower platen, is sleeved on described pressing plate guide pillar.
Described piston cylinder assembly is arranged in described apparatus for regulating, described piston cylinder assembly comprises upper piston and lower piston, described upper piston contacts with described top board, described lower piston contacts with described lower platen, described upper piston, the upper and lower operation of lower piston, drive described top board and described lower platen along the upper and lower operation of described pressing plate guide pillar.
Between described connection bracket and bumper, be provided with hydraulic actuating cylinder; Described bumper body is put part and is placed in described hydraulic actuating cylinder; Described connection bracket is socketed on hydraulic cylinder.
A kind of motor-vehicle chassis control method, the described vehicle central control module that comprises, and vehicle suspension system, described vehicle suspension system comprises connection bracket, vehicle body spring and bumper, described vehicle body spring is provided with spring preset adjustment mechanism, and described spring preset adjustment mechanism comprises piston cylinder, controls assembly and high pressure fuel pipe; Described vehicle central control module is connected by CAN bus with described spring preset adjustment mechanism, and described vehicle central control module is connected with motor vehicle-detecting system, and described motor vehicle-detecting system comprises acquisition radar, camera and control unit;
The first step, described vehicle body spring preset adjustment mechanism is arranged on described vehicle body spring outside; Described vehicle body spring is put in advance, and the predetermincd tension that described spring preset adjustment mechanism is applied to described vehicle body spring is greater than the predetermincd tension that described dead weight of vehicle applies to vehicle body spring;
Second step, is being arranged on described radar at self-propelled vehicle bumper/spoiler middle part or air-inlet grille middle part foremost, and mounting means is embedded fixed installation;
The 3rd step, described front end camera is arranged on self-propelled vehicle bumper/spoiler middle part or air-inlet grille middle part or outside rear-view mirror front end foremost, and mounting means is embedded fixed installation;
The 4th step, described piston cylinder assembly is arranged in described apparatus for regulating, described piston cylinder assembly comprises upper piston and lower piston, described upper piston contacts with described top board, described lower piston contacts with described lower platen, described upper piston, the upper and lower operation of lower piston, drive described top board and described lower platen along the upper and lower operation of described pressing plate guide pillar;
Vehicle in the process of moving, when motor vehicle-detecting system detects the place ahead and has outstanding obstacle, described vehicle central control module receives this signal, through logic judgement, to the output of spring preset adjustment mechanism, heighten the instruction on chassis, now described in described piston driving, upper and lower pressing plate moves in the opposite direction along pressing plate guide rail, and the pressure of vehicle body spring is released, and vehicle chassis is raise; When motor vehicle-detecting system detects road ahead when smooth, described vehicle central control module receives this signal, through logic judgement, to the output of spring preset adjustment mechanism, turn down the instruction on chassis, now described in described piston driving, upper and lower pressing plate moves to relative direction along pressing plate guide rail, increase the predetermincd tension of vehicle body spring, vehicle body spring-compressed, reduces vehicle chassis.
Adopt technical scheme provided by the present invention, can effectively solve chassis system of the prior art, when potted road surface, usually can contact with the protrusion on road surface, make vehicle chassis drag the end, cause vehicle damage, owing to can not constantly chassis portion height being adjusted according to road surface situation, make the non-constant of comfort level of vehicle, can not carry out anticipation to the road conditions that repeat, can not to chassis system, adjust in advance, make the technical matterss such as the traveling comfort of vehicle is poor, the present invention contacts chassis system and the foundation of vehicle central control module, form chassis control system, by chassis actuating unit according to the signal of Central Control Module (CCM), can to road conditions, carry out anticipation in real time, then automatically chassis system is adjusted, overcome defect of the prior art, greatly improved the comfort level of vehicle, simultaneously, the present invention also has low cost of manufacture, safe and reliable to operation, good stability, the features such as long service life.
Accompanying drawing explanation
By reference to the accompanying drawings, the present invention is described further:
Fig. 1 is structural representation of the present invention;
Wherein, 1 is vehicle body spring; 2 is piston cylinder assembly; 3 is top board; 4 is lower platen; 5 is pressing plate guide rail.
The specific embodiment
As shown in Figure 1, technical scheme of the present invention is, a kind of motor-vehicle chassis control system, comprise vehicle central control module, and vehicle suspension system, described vehicle suspension system comprises connection bracket, vehicle body spring 1 and bumper, and described vehicle body spring 1 is provided with spring preset adjustment mechanism, and described spring preset adjustment mechanism comprises piston cylinder assembly 2, controls assembly and high pressure fuel pipe; Described vehicle central control module is connected by CAN bus with described spring preset adjustment mechanism, and described vehicle central control module is connected with motor vehicle-detecting system, and described motor vehicle-detecting system comprises acquisition radar, camera and control unit.
Described bumper is arranged on described vehicle body spring 1 inside, and described spring preset adjustment mechanism is arranged on described vehicle body spring 1 outside.
The predetermincd tension that described spring preset adjustment mechanism applies to described vehicle body spring 1 is greater than the predetermincd tension that described dead weight of vehicle applies to vehicle body spring 1.
Described radar is arranged on self-propelled vehicle bumper/spoiler middle part or air-inlet grille middle part foremost, and mounting means is embedded fixed installation.
Described front end camera is arranged on self-propelled vehicle bumper/spoiler middle part or air-inlet grille middle part or outside rear-view mirror front end foremost, and mounting means is embedded fixed installation.
Described spring preset adjustment mechanism also comprises top board 3, lower platen 4, pressing plate guide pillar and apparatus for regulating, at described top board 3 and lower platen 4, is sleeved on described pressing plate guide pillar.
Described piston cylinder assembly 2 is arranged in described apparatus for regulating, described piston cylinder assembly 2 comprises upper piston and lower piston, described upper piston contacts with described top board 3, described lower piston contacts with described lower platen 4, described upper piston, the upper and lower operation of lower piston, drive described top board 3 and described lower platen 4 along the upper and lower operation of described pressing plate guide pillar.
Between described connection bracket and bumper, be provided with hydraulic actuating cylinder; Described bumper body is put part and is placed in described hydraulic actuating cylinder; Described connection bracket is socketed on hydraulic cylinder.
A kind of motor-vehicle chassis control method, the described vehicle central control module that comprises, and vehicle suspension system, described vehicle suspension system comprises connection bracket, vehicle body spring 1 and bumper, described vehicle body spring 1 is provided with spring preset adjustment mechanism, and described spring preset adjustment mechanism comprises piston cylinder, controls assembly and high pressure fuel pipe; Described vehicle central control module is connected by CAN bus with described spring preset adjustment mechanism, and described vehicle central control module is connected with motor vehicle-detecting system, and described motor vehicle-detecting system comprises acquisition radar, camera and control unit;
The first step, described vehicle body spring 1 preset adjustment mechanism is arranged on described vehicle body spring 1 outside; Described vehicle body spring 1 is put in advance, and the predetermincd tension that described spring preset adjustment mechanism is applied to described vehicle body spring 1 is greater than the predetermincd tension that described dead weight of vehicle applies to vehicle body spring 1;
Second step, is being arranged on described radar at self-propelled vehicle bumper/spoiler middle part or air-inlet grille middle part foremost, and mounting means is embedded fixed installation;
The 3rd step, described front end camera is arranged on self-propelled vehicle bumper/spoiler middle part or air-inlet grille middle part or outside rear-view mirror front end foremost, and mounting means is embedded fixed installation;
The 4th step, described piston cylinder assembly 2 is arranged in described apparatus for regulating, described piston cylinder assembly 2 comprises upper piston and lower piston, described upper piston contacts with described top board 3, described lower piston contacts with described lower platen 4, described upper piston, the upper and lower operation of lower piston, drive described top board 3 and described lower platen 4 along the upper and lower operation of described pressing plate guide pillar;
Vehicle in the process of moving, when motor vehicle-detecting system detects the place ahead and has outstanding obstacle, described vehicle central control module receives this signal, through logic judgement, to the output of spring preset adjustment mechanism, heighten the instruction on chassis, now described in described piston driving, upper and lower pressing plate 4 moves in the opposite direction along pressing plate guide rail 5, and the pressure of vehicle body spring 1 is released, and vehicle chassis is raise; When motor vehicle-detecting system detects road ahead when smooth, described vehicle central control module receives this signal, through logic judgement, to the output of spring preset adjustment mechanism, turn down the instruction on chassis, now described in described piston driving, upper and lower pressing plate 4 moves to relative direction along pressing plate guide rail 5, increase the predetermincd tension of vehicle body spring 1,1 compression of vehicle body spring, reduces vehicle chassis.
Claims (10)
1. a motor-vehicle chassis control system, it is characterized in that, comprise vehicle central control module, and vehicle suspension system, described vehicle suspension system comprises connection bracket, vehicle body spring (1) and bumper, described vehicle body spring (1) is provided with spring preset adjustment mechanism, and described spring preset adjustment mechanism comprises piston cylinder assembly (2), controls assembly and high pressure fuel pipe; Described vehicle central control module is connected by CAN bus with described spring preset adjustment mechanism, and described vehicle central control module is connected with motor vehicle-detecting system, and described motor vehicle-detecting system comprises acquisition radar, camera and control unit.
2. a kind of motor-vehicle chassis control system according to claim 1, is characterized in that, described bumper is arranged on described vehicle body spring (1) inside, and described spring preset adjustment mechanism is arranged on described vehicle body spring (1) outside.
3. a kind of motor-vehicle chassis control system according to claim 1 and 2, it is characterized in that, the predetermincd tension that described spring preset adjustment mechanism applies to described vehicle body spring (1) is greater than the predetermincd tension that described dead weight of vehicle applies to vehicle body spring (1).
4. a kind of motor-vehicle chassis control system according to claim 3, is characterized in that, described radar is arranged on self-propelled vehicle bumper/spoiler middle part or air-inlet grille middle part foremost, and mounting means is embedded fixed installation.
5. a kind of motor-vehicle chassis control system according to claim 4, is characterized in that, described front end camera is arranged on self-propelled vehicle bumper/spoiler middle part or air-inlet grille middle part or outside rear-view mirror front end foremost, and mounting means is embedded fixed installation.
6. a kind of motor-vehicle chassis control system according to claim 5, it is characterized in that, described spring preset adjustment mechanism also comprises top board (3), lower platen (4), pressing plate guide pillar and apparatus for regulating, at described top board (3) and lower platen (4), is sleeved on described pressing plate guide pillar.
7. a kind of motor-vehicle chassis control system according to claim 5, it is characterized in that, described piston cylinder assembly (2) is arranged in described apparatus for regulating, described piston cylinder assembly (2) comprises upper piston and lower piston, described upper piston contacts with described top board (3), described lower piston contacts with described lower platen (4), described upper piston, the upper and lower operation of lower piston, drive described top board (3) and described lower platen (4) along the upper and lower operation of described pressing plate guide pillar.
8. a kind of motor-vehicle chassis control system according to claim 5, is characterized in that, between described connection bracket and bumper, is provided with hydraulic actuating cylinder.
9. a kind of motor-vehicle chassis control system according to claim 6, is characterized in that, described bumper body is put part and is placed in described hydraulic actuating cylinder; Described connection bracket is socketed on hydraulic cylinder.
10. a motor-vehicle chassis control method, it is characterized in that, the described vehicle central control module that comprises, and vehicle suspension system, described vehicle suspension system comprises connection bracket, vehicle body spring (1) and bumper, described vehicle body spring (1) is provided with spring preset adjustment mechanism, and described spring preset adjustment mechanism comprises piston cylinder, controls assembly and high pressure fuel pipe; Described vehicle central control module is connected by CAN bus with described spring preset adjustment mechanism, and described vehicle central control module is connected with motor vehicle-detecting system, and described motor vehicle-detecting system comprises acquisition radar, camera and control unit;
The first step, described vehicle body spring (1) preset adjustment mechanism is arranged on described vehicle body spring (1) outside; Described vehicle body spring (1) is put in advance, and the predetermincd tension that described spring preset adjustment mechanism is applied to described vehicle body spring (1) is greater than the predetermincd tension that described dead weight of vehicle applies to vehicle body spring (1);
Second step, is being arranged on described radar at self-propelled vehicle bumper/spoiler middle part or air-inlet grille middle part foremost, and mounting means is embedded fixed installation;
The 3rd step, described front end camera is arranged on self-propelled vehicle bumper/spoiler middle part or air-inlet grille middle part or outside rear-view mirror front end foremost, and mounting means is embedded fixed installation;
The 4th step, described piston cylinder assembly (2) is arranged in described apparatus for regulating, described piston cylinder assembly (2) comprises upper piston and lower piston, described upper piston contacts with described top board (3), described lower piston contacts with described lower platen (4), described upper piston, the upper and lower operation of lower piston, drive described top board (3) and described lower platen (4) along the upper and lower operation of described pressing plate guide pillar;
Vehicle in the process of moving, when motor vehicle-detecting system detects the place ahead and has outstanding obstacle, described vehicle central control module receives this signal, through logic judgement, to the output of spring preset adjustment mechanism, heighten the instruction on chassis, now described in described piston driving, upper and lower pressing plate (4) moves in the opposite direction along pressing plate guide rail (5), and the pressure of vehicle body spring (1) is released, and vehicle chassis is raise; When motor vehicle-detecting system detects road ahead when smooth, described vehicle central control module receives this signal, through logic judgement, to the output of spring preset adjustment mechanism, turn down the instruction on chassis, now described in described piston driving, upper and lower pressing plate (4) moves to relative direction along pressing plate guide rail (5), increase the predetermincd tension of vehicle body spring 1, vehicle body spring (1) compression, reduces vehicle chassis.
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| CN201310517797.8A CN103568766B (en) | 2013-10-28 | 2013-10-28 | A kind of motor-vehicle chassis controls system and control method thereof |
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| CN201310517797.8A CN103568766B (en) | 2013-10-28 | 2013-10-28 | A kind of motor-vehicle chassis controls system and control method thereof |
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| CN103568766A true CN103568766A (en) | 2014-02-12 |
| CN103568766B CN103568766B (en) | 2016-06-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035088A (en) * | 2014-05-02 | 2015-11-11 | 福特全球技术公司 | Road roughness preview with drive history |
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| US4827416A (en) * | 1985-09-13 | 1989-05-02 | Nissan Motor Company, Limited | Method and system for controlling automotive suspension system, particularly for controlling suspension characteristics in accordance with road surface conditions |
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| EP1927487A2 (en) * | 2006-12-01 | 2008-06-04 | Audi Ag | Height adjustment device for wheel suspensions in motor vehicles |
| DE102009040170A1 (en) * | 2008-10-17 | 2010-04-22 | Continental Teves Ag & Co. Ohg | Sensor-chassis system for motor vehicle, has sensor unit and chassis-actuator unit, where sensor unit has radar sensor elements or ultrasonic sensor element or mono camera or stereo camera |
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| CN105035088A (en) * | 2014-05-02 | 2015-11-11 | 福特全球技术公司 | Road roughness preview with drive history |
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