US20120053774A1 - Method for Validation and Introduction of One or More Features in Electrically Powered System - Google Patents

Method for Validation and Introduction of One or More Features in Electrically Powered System Download PDF

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Publication number
US20120053774A1
US20120053774A1 US13/319,652 US201013319652A US2012053774A1 US 20120053774 A1 US20120053774 A1 US 20120053774A1 US 201013319652 A US201013319652 A US 201013319652A US 2012053774 A1 US2012053774 A1 US 2012053774A1
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Prior art keywords
features
electrically powered
systems
data
energy
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US13/319,652
Inventor
Chetan Kumar Maini
Prakash Ramaraju
Nagendra Babu Sathyanarayana
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Mahindra Reva Electric Vehicles Pvt Ltd
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Mahindra Reva Electric Vehicles Pvt Ltd
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Assigned to MAHINDRA REVA ELECTRIC VEHICLES PVT. LTD. reassignment MAHINDRA REVA ELECTRIC VEHICLES PVT. LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MAINI, CHETAN KUMAR, RAMARAJU, PRAKASH, SATHYANARAYANA, NAGENDRA BABU
Publication of US20120053774A1 publication Critical patent/US20120053774A1/en
Abandoned legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2045Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for optimising the use of energy
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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    • GPHYSICS
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    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/06Electricity, gas or water supply
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
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    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44Methods for charging or discharging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00Operating Modes
    • B60L2260/40Control modes
    • B60L2260/50Control modes by future state prediction
    • B60L2260/54Energy consumption estimation
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    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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    • Y02E60/10Energy storage using batteries
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    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL 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
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    • YGENERAL 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
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    • YGENERAL 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
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    • YGENERAL 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
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    • YGENERAL 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
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    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
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    • Y04S30/00Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Definitions

  • This disclosure relates to systems which are at least partially powered by electricity, and more particularly but not exclusively to, a technique for validating introduction of new features in the systems which are at least partially powered by electricity.
  • a variant of an electric car model can be introduced to the market, in which the variant has an energy storage system, such as a battery, made of chemistry which is different from the chemistry of an energy storage system in an existing model of the electric car.
  • the new feature to be introduced is validated to ascertain safety, performance, and durability of the product, among other reasons.
  • validation of introduction of a new feature can be performed by making prototypes of the product with the new feature, and testing the product under various operating conditions. For example, if a new feature, such as a new charge profile for a battery of an electric car, has to be introduced, then the same is validated using various test electric cars. To validate this feature, the manufacturer of the electric car deploys the test electric cars in various geographic locations to ascertain the performance of the electric car in light of the newly introduced feature. The deployment of the test electric cars in various geographic locations will enable the manufacturer to validate the new feature under different weather conditions. For example, a newly introduced feature might work well in locations such as India which has moderate climate, whereas it might not work well in Alaska which has extremely challenging climatic conditions.
  • Such deployment of the product across various geographic locations can increase the cost of validating the new feature. Further, the high cost of introducing test products just for the sake of validating might lead to using fewer test products for validating. Using fewer test products for validating might decrease the reliability of validation. Further, introducing products solely for validation purposes and collecting data relating to the test products might also increase the time required for validation. Alternatively, manufacturers may use facilities that simulate various operating conditions to validate introduction of new features. However, building such facilities or renting such facilities may increase the cost of validation. Additionally, it may be difficult to find a facility which is capable of simulating all the desired types of operating conditions.
  • an embodiment provides a method for facilitating validation of introduction of one or more features in a variant of an electrically powered system, which is at least partially powered by electricity.
  • the electrically powered system includes, an energy storage system adapted to store electric energy, an energy consumption system configured to at least partially consume electric energy from the energy storage system, and an energy management system configured to at least manage the energy storage system and the energy consumption system.
  • the method includes introducing the features in a plurality of electrically powered systems which are at least partially powered by electricity. Thereafter, data is collected, corresponding to at least one of the energy storage system and the energy consumption system of each of the plurality of electrically powered systems, based on the information required for validating the features introduced in the electrically powered system.
  • the collected data corresponding to the energy storage system and the energy consumption system is transmitted to a remote location, thereby enabling analysis of the data at the remote location for validating introduction of the at least one feature in the variant of the electrically powered system.
  • the system includes, a plurality of electrically powered system and a data processing system. Each of the plurality of electrically powered systems is configured to enable introduction of the features in them.
  • Each of the electrically powered systems includes an energy storage system adapted to store electric energy, an energy consumption system configured to at least partially consume electric energy from the energy storage system, and an energy management system configured to collect data from the energy storage system and the energy consumption system, send instructions to the energy storage system and the energy consumption system, and transmit data to a remote location.
  • the data processing system located at the remote location is configured to communicate with the electrically powered systems, thereby enabling the data processing system to receive transmitted data and further enabling analysis of the data at the remote location for validating introduction of the at least one feature in the variant of the electrically powered system.
  • FIG. 1 is a block diagram illustrating a system 100 for facilitating validation of introduction of one or more features in a variant of an electrically powered system, in accordance with an embodiment
  • FIG. 2 is a block diagram illustrating an electrically powered system, in accordance with an embodiment
  • FIG. 3 is a block diagram illustrating an energy consumption system, in accordance with an embodiment
  • FIG. 5 is a flowchart illustrating a method for facilitating validation of introduction of one or more features in a variant of an electrically powered system, in accordance with an embodiment
  • FIG. 6 is a graph illustrating drive profiles of an electric vehicle, in accordance with an embodiment.
  • the embodiments disclosed herein facilitate validation of introduction of one or more features in a variant of an electrically powered system.
  • an electrically powered system such as an electric vehicle
  • the introduction of the features are validated. For example, if a new feature is to be introduced in a variant of an electric car, the introduction of the feature in the variant has to be validated.
  • the feature is introduced in several electric cars and data is collected from the electric cars. The collected data is analyzed to make a decision on introduction of the feature in a variant of the electric car that may be released in the market at a later date.
  • FIG. 1 is a block diagram illustrating a system 100 for facilitating validation of introduction of one or more features in a variant of an electrically powered system, in accordance with an embodiment.
  • the system 100 includes multiple electrically powered systems (EPSs) 104 and a data processing system (DPS) 102 .
  • EPS 104 is a system which is at least partially powered by electric energy. Examples of EPSs 104 include, but are not limited to, electric vehicles, hybrid electric vehicles, and uninterruptible power supply systems.
  • a DPS 102 can be configured to receive and process data from an EPS 104 .
  • one or more of the EPSs 104 are wirelessly connected to the DPS 102 , which is located at a location which is remote to the location of the EPSs 104 .
  • the EPSs 104 can be connected to the DPS 102 through a telecommunication network 106 .
  • the EPSs 104 can communicate with the DPS 102 using any other data transfer technique.
  • the DPS 102 can include one or more memory devices connected to one or more processing units.
  • the one or more processing units can include, for example, a general-purpose microprocessor, an application-specific integrated circuit, a field-programmable gate array, another device capable of manipulating data, or a combination of devices.
  • at least some of the one or more memory devices are integrated with at least one of the processing units.
  • the DPS 102 is a dedicated computer capable of wirelessly communicating over the network 106 .
  • the DPS 102 may be a discrete set of components that perform the functions as a DPS 102 as described herein.
  • FIG. 2 is a block diagram illustrating an EPS 104 , in accordance with an embodiment.
  • EPS 104 includes an energy storage system (ESS) 110 , an energy consumption system (ECS) 108 , and an energy management system (EMS) 112 .
  • the ESS 110 can include a battery pack capable of storing electricity, one or more capacitors, a thermal storage device, a chemical storage device, a fuel tank, an energy conversion system, other energy storage devices, or a combination of devices.
  • the ESS 110 may comprise one or more of a lead-acid battery, a gel battery, a lithium ion battery, a lithium ion polymer battery, a NaS battery, a nickel-iron battery, a nickel metal hydride battery, a nickel-cadmium battery, and capacitors, among others.
  • the electric energy and/or other forms of energy stored in the ESS 110 can be at least partially consumed by one or more sub-systems of the ECS 108 .
  • the ECS 108 may include one or more subsystems that use energy stored in the ESS 110 .
  • FIG. 3 is a block diagram illustrating an energy consumption system 108 , in accordance with an embodiment.
  • the ECS 108 can include sub-systems such as, a drive train 108 a , a motor controller 108 b , a cabin climate control 108 c , a subsystem climate control 108 d , a charging system 108 e , a dashboard display 108 f , a car access system 108 g , a drive motor 108 h , a seat climate control 108 i , a cabin HVAC 108 j , an add-on heating system 108 k , a battery heater 108 l , battery ventilation 108 m , an on board charger 108 n , a safety system 108 o , a crash sensor 108 p , a sensing system 108 q , a temperature sensor 108 r ,
  • the one or more subsystems of the ECS 108 are capable of at least partially consuming electric energy stored in the ESS 110 .
  • the distribution of electric energy stored in the ESS 110 to the sub-systems of the ECS 108 is at least partially managed by the EMS 112 .
  • FIG. 4 is a block diagram illustrating an EMS 112 , in accordance with an embodiment.
  • the EMS 112 can include components configured to perform one or more of the following functions: managing the distribution of energy stored in the ESS 110 , receiving instructions for managing the distribution of energy, and providing information about the distribution of energy.
  • the EMS 112 comprises a processor 402 , a memory device 404 , an input and output (I/O) device 406 , and a signal transmitting and receiving device 408 .
  • the processor 402 is capable of receiving and processing data obtained from the I/O device 406 , the signal transmitting and receiving device 408 , and the memory device 404 .
  • the processor 402 can be configured to send data to the memory device 404 for storage. Additionally, the processor 402 can be configured to send commands to the I/O device 406 , which can communicate the commands to systems and sub-systems associated with the I/O device 406 . Further, the processor 402 can be configured to send data to the signal transmitting and receiving device 408 for transmitting the data to the DPS 102 and the like.
  • the processor 402 is made of electronic circuits comprising commercially available general purpose microcontroller chips.
  • the memory device 404 may comprise a combination of volatile and non volatile memory chips that can store information in digital form.
  • the I/O device 406 can comprise sets of output lines, each of which is individually connected to the processor 402 . These output lines may include analog inputs, analog outputs, digital inputs, digital outputs, pulse/frequency outputs and data lines, or a combination of line types.
  • the data lines can be connected to the external world through the signal transmitting and receiving device 408 .
  • FIG. 5 is a flowchart illustrating a method for facilitating validation of introduction of one or more features in a variant of an electrically powered system, in accordance with an embodiment.
  • the features are introduced in multiple EPSs 104 .
  • the EPSs 104 into which the features are introduced can include EPSs 104 used in the field, EPSs 104 used in a controlled test environment, a fleet of EPSs 104 used in a similar situation or setting, EPSs 104 used in a variety of different situations or settings, or a combination of EPSs 104 in controlled and uncontrolled environments.
  • the EPSs 104 into which the features are introduced can include EPSs 104 which have been sold to customers, and which are being used by the customers.
  • usage of EPSs 104 which are solely meant for validation may not be required.
  • the feature can be introduced in existing models of electric cars which are currently being used by customers.
  • the EPSs 104 in which the features are introduced may be located in distinct geographic locations.
  • the EPSs 104 may be located in places which have distinct weather conditions, terrain conditions and traffic conditions, among others.
  • the EPSs 104 in which the features are introduced may be experiencing distinct operating conditions.
  • the introduction of features in EPSs 104 which are experiencing distinct operating conditions enables collection of data from the EPSs 104 that enables understanding of performance of the EPSs 104 in light of the introduced features under various operating conditions.
  • variations of the features may be introduced in one or more EPSs 104 .
  • Introduction of variations of the features enables understanding of performance of the EPSs 104 with each of the feature variations. For example, if introduction of new charge profile for a battery of an electric car is to be validated, then variations of the new charge profile can be introduced in different EPSs 104 .
  • Introducing variations of the charge profile can enable understanding of battery or ESS 110 behavior with different charge profiles. Measuring the results of the introduction of these variations can also enable selecting the most feasible charge profile that may be introduced in a variant of an electric car that may be released in the market at a later stage.
  • all or a combination the features that are to be validated can be introduced in each of the EPSs 104 .
  • one or more features may be introduced in each of the EPSs 104 .
  • one or more features are introduced into one or more subsets of the EPSs 104 .
  • the EMS 112 of the EPS 104 in which the feature is being introduced may be reprogrammed.
  • the reprogramming can be carried out from a remote location wirelessly over a telecommunication network.
  • DPS 102 which is located at a remote location reprograms the EPS 104 over the network 106 .
  • the EMS 112 may be connected to the DPS 102 using tangible connection to enable reprogramming of the EMS 112 .
  • Any other data communication technique can be used to transfer data, software, programming, or instructions between the DPS 102 and the EPS 104 .
  • the EMS 112 is reprogrammed by any one data communication technique or by a combination of data communication techniques.
  • the feature can be introduced in the EPS 104 by introducing one or more components in the EPS 104 . For example, if introduction of a battery of certain chemistry has to be validated, then the battery of that chemistry is introduced in the EPSs 104 .
  • data corresponding to one or more of the ESS 110 and the ECS 108 is collected.
  • the collected data can include data that is required for validation of introduction of the features, other data, or a combination of required data and other data.
  • processor 402 of the EMS 112 checks whether data corresponding to the ESS 110 is required for validation of introduction of the features.
  • DPS 102 updates the EMS 112 regarding the data that is required for validation of introduction of the features. If data corresponding to the ESS 110 is required, then the same is collected from the ESS 110 at step 508 .
  • the processor 402 checks whether data corresponding to ECS 108 is required for validation of introduction of the features. If data corresponding to ECS 108 is required, then the same is collected from the ECS 108 , at step 514 .
  • data is collected only from those sub-systems of the ECS 108 which are required for validation of introduction of the features. While the embodiment illustrated in FIG. 5 indicates that data is not collected if it is not required, in alternative embodiments, data that is not necessarily required (including, for example, optional data, metadata, other data, or a combination of data) may be collected in addition to any required data. Further, in some embodiments, the method includes collecting some or all data that is available for collection. In certain circumstances, at least some data that is typically required for validation of introduction of one or more features may not be available (due to, for example, a system fault or measurement error). In certain embodiments, data may be collected even when certain required data is not available.
  • the data collected by the processor 402 is transferred to the DPS 102 .
  • the transfer of data can be accomplished by any suitable technique.
  • the data collected by the processor 402 can be transmitted to a remote location.
  • the data collected by the processor 402 may be stored in the memory device 404 and transmitted by the signal transmitting and receiving device 408 .
  • the data is transmitted to the remote location periodically by retrieving the required data from the memory device 404 .
  • the data collected is partially transmitted to the remote location. Alternatively, all the collected data may be transmitted.
  • the processor 402 processes the collected data before transmitting.
  • a part of the collected data may be processed by the processor 402 before transmitting.
  • the data may be transmitted without being processed before transmitting.
  • the transmitted data is received at the remote location by the DPS 102
  • the data received by the DPS 102 can be analyzed to validate the introduction of features.
  • system 100 is used to validate introduction of a heating feature in a variant of electric vehicles.
  • the heating feature is introduced into existing electric vehicles.
  • the heating feature is introduced by integrating required components in the vehicles. Subsequently, data corresponding to performance of the vehicle in light of the introduced feature is collected. The collected data is used to validate the introduction of the feature.
  • system 100 is used to validate introduction of new drive pattern in a variant of electric vehicles. For example, introduction of new drive profile in vehicles which may be used inside a college campus may be validated. It may be noted that vehicles which may be used only in the campus may be driven at speeds lower than that of vehicles driven on city roads.
  • FIG. 6 is a graph illustrating drive profiles of an electric vehicle, in accordance with an embodiment.
  • drive profiles of existing vehicles is changed from existing drive profile 604 to a new drive profile 602 .
  • the new drive profile 602 provides higher acceleration and lower top speed as compared to existing drive profile 604 .
  • the new feature is introduced by reprogramming EMS 112 of each of the vehicles to follow the new profile 602 .
  • the new feature may be introduced in the EPS 104 by introducing one or more components in the EPS 104 .
  • the new type of battery is introduced in the existing EPS 104 for validation.
  • data from the EPS 104 is collected wirelessly to validate introduction of the new type of battery.
  • the embodiments disclosed herein can be implemented through at least one software program running on at least one hardware device and performing network management functions to control the network elements.
  • the network elements shown in FIG. 1 include blocks which can be at least one of a hardware device, or a combination of hardware device and software module.
  • the embodiment disclosed herein describes facilitating validation of introduction of one or more features in a variant of an electrically powered system. Therefore, it is understood that the embodiments disclosed include a program and a computer readable medium having data stored therein.
  • the computer readable medium can contain program code for implementing one or more steps of the disclosed methods.
  • the disclosed embodiments also include a server or any suitable programmable device configured to execute that program code.
  • One or more of the disclosed methods can be implemented through or together with a software program written in, e.g., very high speed integrated circuit hardware description language (VHDL) or another programming language.
  • VHDL very high speed integrated circuit hardware description language
  • the disclosed methods can be implemented by one or more software modules being executed on at least one hardware device.
  • the at least one hardware device can include any kind of portable device that can be programmed.
  • the at least one hardware device may also include devices that can be programmed (e.g., a hardware device like an ASIC, a combination of hardware and software devices, such as an ASIC and an FPGA, or at least one microprocessor and at least one memory with software modules located therein).
  • devices that can be programmed (e.g., a hardware device like an ASIC, a combination of hardware and software devices, such as an ASIC and an FPGA, or at least one microprocessor and at least one memory with software modules located therein).
  • the methods described herein can be implemented partly in hardware and partly in software. Alternatively, embodiments may be implemented on different hardware devices, e.g. using a plurality of CPUs.

Abstract

A method and a system for facilitating validation of introduction of one or more features in a variant of an electrically powered system are provided. The method includes, introducing the features in plurality of electrically powered systems which are at least partially powered by electricity. Thereafter, data is collected, corresponding to at least one of the energy storage system and the energy consumption system of each of the plurality of electrically powered systems, based on the data required for validating the features introduced in the electrically powered system. The collected data corresponding to the energy storage system and the energy consumption system is transmitted to a remote location, thereby enabling analysis of the data, at the remote location, for validating introduction of the at least one feature in the variant of the electrically powered system.

Description

  • This disclosure relates to systems which are at least partially powered by electricity, and more particularly but not exclusively to, a technique for validating introduction of new features in the systems which are at least partially powered by electricity.
  • BACKGROUND
  • It is a common practice in business to introduce variants of a product in Which features different from the existing model of the product are introduced. For example, a variant of an electric car model can be introduced to the market, in which the variant has an energy storage system, such as a battery, made of chemistry which is different from the chemistry of an energy storage system in an existing model of the electric car. Generally, before introducing a variant, the new feature to be introduced is validated to ascertain safety, performance, and durability of the product, among other reasons.
  • Traditionally, validation of introduction of a new feature can be performed by making prototypes of the product with the new feature, and testing the product under various operating conditions. For example, if a new feature, such as a new charge profile for a battery of an electric car, has to be introduced, then the same is validated using various test electric cars. To validate this feature, the manufacturer of the electric car deploys the test electric cars in various geographic locations to ascertain the performance of the electric car in light of the newly introduced feature. The deployment of the test electric cars in various geographic locations will enable the manufacturer to validate the new feature under different weather conditions. For example, a newly introduced feature might work well in locations such as India which has moderate climate, whereas it might not work well in Alaska which has extremely challenging climatic conditions. Such deployment of the product across various geographic locations can increase the cost of validating the new feature. Further, the high cost of introducing test products just for the sake of validating might lead to using fewer test products for validating. Using fewer test products for validating might decrease the reliability of validation. Further, introducing products solely for validation purposes and collecting data relating to the test products might also increase the time required for validation. Alternatively, manufacturers may use facilities that simulate various operating conditions to validate introduction of new features. However, building such facilities or renting such facilities may increase the cost of validation. Additionally, it may be difficult to find a facility which is capable of simulating all the desired types of operating conditions.
  • Statement of Invention
  • Accordingly, an embodiment provides a method for facilitating validation of introduction of one or more features in a variant of an electrically powered system, which is at least partially powered by electricity. The electrically powered system includes, an energy storage system adapted to store electric energy, an energy consumption system configured to at least partially consume electric energy from the energy storage system, and an energy management system configured to at least manage the energy storage system and the energy consumption system. The method includes introducing the features in a plurality of electrically powered systems which are at least partially powered by electricity. Thereafter, data is collected, corresponding to at least one of the energy storage system and the energy consumption system of each of the plurality of electrically powered systems, based on the information required for validating the features introduced in the electrically powered system. The collected data corresponding to the energy storage system and the energy consumption system is transmitted to a remote location, thereby enabling analysis of the data at the remote location for validating introduction of the at least one feature in the variant of the electrically powered system.
  • There is also provided a system for facilitating validation of introduction of one or more features in a variant of an electrically powered system which is at least partially powered by electricity. The system includes, a plurality of electrically powered system and a data processing system. Each of the plurality of electrically powered systems is configured to enable introduction of the features in them. Each of the electrically powered systems includes an energy storage system adapted to store electric energy, an energy consumption system configured to at least partially consume electric energy from the energy storage system, and an energy management system configured to collect data from the energy storage system and the energy consumption system, send instructions to the energy storage system and the energy consumption system, and transmit data to a remote location. The data processing system located at the remote location is configured to communicate with the electrically powered systems, thereby enabling the data processing system to receive transmitted data and further enabling analysis of the data at the remote location for validating introduction of the at least one feature in the variant of the electrically powered system.
  • These and other aspects of the embodiments disclosed herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating preferred embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments disclosed herein without departing from the spirit thereof, and the embodiments disclosed herein include all such modifications.
  • BRIEF DESCRIPTION OF FIGURES
  • Embodiments are illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in the various figures. The embodiments disclosed herein will be better understood from the following description with reference to the drawings, in which:
  • FIG. 1 is a block diagram illustrating a system 100 for facilitating validation of introduction of one or more features in a variant of an electrically powered system, in accordance with an embodiment;
  • FIG. 2 is a block diagram illustrating an electrically powered system, in accordance with an embodiment;
  • FIG. 3 is a block diagram illustrating an energy consumption system, in accordance with an embodiment;
  • FIG. 4 is a block diagram illustrating an energy management system, in accordance with an embodiment;
  • FIG. 5 is a flowchart illustrating a method for facilitating validation of introduction of one or more features in a variant of an electrically powered system, in accordance with an embodiment; and
  • FIG. 6 is a graph illustrating drive profiles of an electric vehicle, in accordance with an embodiment.
  • DETAILED DESCRIPTION
  • The embodiments disclosed herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques may be omitted so as to not unnecessarily obscure the embodiments disclosed herein. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiments disclosed herein may be practiced and to further enable those of skill in the art to practice the embodiments disclosed herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments disclosed herein.
  • The embodiments disclosed herein facilitate validation of introduction of one or more features in a variant of an electrically powered system. To introduce one or more features in a variant of an electrically powered system, such as an electric vehicle, the introduction of the features are validated. For example, if a new feature is to be introduced in a variant of an electric car, the introduction of the feature in the variant has to be validated. To validate the introduction of the feature, the feature is introduced in several electric cars and data is collected from the electric cars. The collected data is analyzed to make a decision on introduction of the feature in a variant of the electric car that may be released in the market at a later date. Referring now to the drawings, and more particularly to FIGS. 1 through 6, where similar reference characters denote corresponding features consistently throughout the figures, there are shown preferred embodiments.
  • System Description
  • FIG. 1 is a block diagram illustrating a system 100 for facilitating validation of introduction of one or more features in a variant of an electrically powered system, in accordance with an embodiment. The system 100 includes multiple electrically powered systems (EPSs) 104 and a data processing system (DPS) 102. EPS 104 is a system which is at least partially powered by electric energy. Examples of EPSs 104 include, but are not limited to, electric vehicles, hybrid electric vehicles, and uninterruptible power supply systems. A DPS 102 can be configured to receive and process data from an EPS 104. In some embodiments, one or more of the EPSs 104 are wirelessly connected to the DPS 102, which is located at a location which is remote to the location of the EPSs 104. The EPSs 104 can be connected to the DPS 102 through a telecommunication network 106. The EPSs 104 can communicate with the DPS 102 using any other data transfer technique.
  • Data Processing System
  • The DPS 102 can include one or more memory devices connected to one or more processing units. The one or more processing units can include, for example, a general-purpose microprocessor, an application-specific integrated circuit, a field-programmable gate array, another device capable of manipulating data, or a combination of devices. In certain embodiments, at least some of the one or more memory devices are integrated with at least one of the processing units. In an embodiment, the DPS 102 is a dedicated computer capable of wirelessly communicating over the network 106. In other embodiments, the DPS 102 may be a discrete set of components that perform the functions as a DPS 102 as described herein.
  • Electrically Powered System
  • FIG. 2 is a block diagram illustrating an EPS 104, in accordance with an embodiment. EPS 104 includes an energy storage system (ESS) 110, an energy consumption system (ECS) 108, and an energy management system (EMS) 112. The ESS 110 can include a battery pack capable of storing electricity, one or more capacitors, a thermal storage device, a chemical storage device, a fuel tank, an energy conversion system, other energy storage devices, or a combination of devices. For example, the ESS 110 may comprise one or more of a lead-acid battery, a gel battery, a lithium ion battery, a lithium ion polymer battery, a NaS battery, a nickel-iron battery, a nickel metal hydride battery, a nickel-cadmium battery, and capacitors, among others. The electric energy and/or other forms of energy stored in the ESS 110 can be at least partially consumed by one or more sub-systems of the ECS 108.
  • Energy Consumption System
  • The ECS 108 may include one or more subsystems that use energy stored in the ESS 110. FIG. 3 is a block diagram illustrating an energy consumption system 108, in accordance with an embodiment. For example, the ECS 108 can include sub-systems such as, a drive train 108 a, a motor controller 108 b, a cabin climate control 108 c, a subsystem climate control 108 d, a charging system 108 e, a dashboard display 108 f, a car access system 108 g, a drive motor 108 h, a seat climate control 108 i, a cabin HVAC 108 j, an add-on heating system 108 k, a battery heater 108 l, battery ventilation 108 m, an on board charger 108 n, a safety system 108 o, a crash sensor 108 p, a sensing system 108 q, a temperature sensor 108 r, a fluid level sensor 108 s, a pressure sensor 108 t and other subsystems, or a combination of subsystems. The one or more subsystems of the ECS 108 are capable of at least partially consuming electric energy stored in the ESS 110. In some embodiments, the distribution of electric energy stored in the ESS 110 to the sub-systems of the ECS 108 is at least partially managed by the EMS 112.
  • Energy Management System
  • FIG. 4 is a block diagram illustrating an EMS 112, in accordance with an embodiment. The EMS 112 can include components configured to perform one or more of the following functions: managing the distribution of energy stored in the ESS 110, receiving instructions for managing the distribution of energy, and providing information about the distribution of energy. In some embodiments, the EMS 112 comprises a processor 402, a memory device 404, an input and output (I/O) device 406, and a signal transmitting and receiving device 408. In certain embodiments, the processor 402 is capable of receiving and processing data obtained from the I/O device 406, the signal transmitting and receiving device 408, and the memory device 404. Further, the processor 402 can be configured to send data to the memory device 404 for storage. Additionally, the processor 402 can be configured to send commands to the I/O device 406, which can communicate the commands to systems and sub-systems associated with the I/O device 406. Further, the processor 402 can be configured to send data to the signal transmitting and receiving device 408 for transmitting the data to the DPS 102 and the like. In an embodiment, the processor 402 is made of electronic circuits comprising commercially available general purpose microcontroller chips. The memory device 404 may comprise a combination of volatile and non volatile memory chips that can store information in digital form. The I/O device 406 can comprise sets of output lines, each of which is individually connected to the processor 402. These output lines may include analog inputs, analog outputs, digital inputs, digital outputs, pulse/frequency outputs and data lines, or a combination of line types. The data lines can be connected to the external world through the signal transmitting and receiving device 408.
  • Method for Facilitating Validation of Introduction of One or More Features in a Variant of an Electrically Powered System
  • FIG. 5 is a flowchart illustrating a method for facilitating validation of introduction of one or more features in a variant of an electrically powered system, in accordance with an embodiment. To facilitate validation of introduction of the features, at step 502, the features are introduced in multiple EPSs 104. The EPSs 104 into which the features are introduced can include EPSs 104 used in the field, EPSs 104 used in a controlled test environment, a fleet of EPSs 104 used in a similar situation or setting, EPSs 104 used in a variety of different situations or settings, or a combination of EPSs 104 in controlled and uncontrolled environments. For example, the EPSs 104 into which the features are introduced can include EPSs 104 which have been sold to customers, and which are being used by the customers. Hence, it may be noted that, usage of EPSs 104 which are solely meant for validation may not be required. For example, for validating introduction of a new feature in a variant of an electric car that may be released in the market at a later stage, the feature can be introduced in existing models of electric cars which are currently being used by customers.
  • In an embodiment, the EPSs 104 in which the features are introduced may be located in distinct geographic locations. For example, the EPSs 104 may be located in places which have distinct weather conditions, terrain conditions and traffic conditions, among others. In effect, the EPSs 104 in which the features are introduced may be experiencing distinct operating conditions. The introduction of features in EPSs 104 which are experiencing distinct operating conditions enables collection of data from the EPSs 104 that enables understanding of performance of the EPSs 104 in light of the introduced features under various operating conditions.
  • In an embodiment, variations of the features may be introduced in one or more EPSs 104. Introduction of variations of the features enables understanding of performance of the EPSs 104 with each of the feature variations. For example, if introduction of new charge profile for a battery of an electric car is to be validated, then variations of the new charge profile can be introduced in different EPSs 104. Introducing variations of the charge profile can enable understanding of battery or ESS 110 behavior with different charge profiles. Measuring the results of the introduction of these variations can also enable selecting the most feasible charge profile that may be introduced in a variant of an electric car that may be released in the market at a later stage.
  • In an embodiment, when introducing multiple features that are to be validated, all or a combination the features that are to be validated can be introduced in each of the EPSs 104. Alternatively, one or more features may be introduced in each of the EPSs 104. In certain embodiments, one or more features are introduced into one or more subsets of the EPSs 104.
  • In an embodiment, based on the feature to the introduced, the EMS 112 of the EPS 104 in which the feature is being introduced may be reprogrammed. In an embodiment, the reprogramming can be carried out from a remote location wirelessly over a telecommunication network. In an embodiment, DPS 102 which is located at a remote location reprograms the EPS 104 over the network 106.
  • In an embodiment, the EMS 112 may be connected to the DPS 102 using tangible connection to enable reprogramming of the EMS 112. Any other data communication technique can be used to transfer data, software, programming, or instructions between the DPS 102 and the EPS 104. In some embodiments, the EMS 112 is reprogrammed by any one data communication technique or by a combination of data communication techniques.
  • In another embodiment, where a feature cannot be introduced by only reprogramming of the EMS 112, the feature can be introduced in the EPS 104 by introducing one or more components in the EPS 104. For example, if introduction of a battery of certain chemistry has to be validated, then the battery of that chemistry is introduced in the EPSs 104.
  • Subsequent to introduction of the features in the EPSs 104, data corresponding to one or more of the ESS 110 and the ECS 108 is collected. The collected data can include data that is required for validation of introduction of the features, other data, or a combination of required data and other data. In some embodiments, at step 504, processor 402 of the EMS 112 checks whether data corresponding to the ESS 110 is required for validation of introduction of the features. In an embodiment, DPS 102 updates the EMS 112 regarding the data that is required for validation of introduction of the features. If data corresponding to the ESS 110 is required, then the same is collected from the ESS 110 at step 508. Further, the processor 402, at step 510, checks whether data corresponding to ECS 108 is required for validation of introduction of the features. If data corresponding to ECS 108 is required, then the same is collected from the ECS 108, at step 514.
  • In an embodiment, data is collected only from those sub-systems of the ECS 108 which are required for validation of introduction of the features. While the embodiment illustrated in FIG. 5 indicates that data is not collected if it is not required, in alternative embodiments, data that is not necessarily required (including, for example, optional data, metadata, other data, or a combination of data) may be collected in addition to any required data. Further, in some embodiments, the method includes collecting some or all data that is available for collection. In certain circumstances, at least some data that is typically required for validation of introduction of one or more features may not be available (due to, for example, a system fault or measurement error). In certain embodiments, data may be collected even when certain required data is not available.
  • At step 516, the data collected by the processor 402 is transferred to the DPS 102. The transfer of data can be accomplished by any suitable technique. For example, the data collected by the processor 402 can be transmitted to a remote location. The data collected by the processor 402 may be stored in the memory device 404 and transmitted by the signal transmitting and receiving device 408. In an embodiment, the data is transmitted to the remote location periodically by retrieving the required data from the memory device 404. In an embodiment, the data collected is partially transmitted to the remote location. Alternatively, all the collected data may be transmitted. In an embodiment, the processor 402 processes the collected data before transmitting. Alternatively, a part of the collected data may be processed by the processor 402 before transmitting. Alternatively, the data may be transmitted without being processed before transmitting.
  • In an embodiment, the transmitted data is received at the remote location by the DPS 102
  • The various actions in above method may be performed in the order presented, in a different order or simultaneously. Further, in some embodiments, some actions listed in the method may be omitted.
  • The data received by the DPS 102 can be analyzed to validate the introduction of features.
  • EXAMPLES
  • In an embodiment, system 100 is used to validate introduction of a heating feature in a variant of electric vehicles. To validate the introduction, the heating feature is introduced into existing electric vehicles. In an embodiment, the heating feature is introduced by integrating required components in the vehicles. Subsequently, data corresponding to performance of the vehicle in light of the introduced feature is collected. The collected data is used to validate the introduction of the feature.
  • In an embodiment, system 100 is used to validate introduction of new drive pattern in a variant of electric vehicles. For example, introduction of new drive profile in vehicles which may be used inside a college campus may be validated. It may be noted that vehicles which may be used only in the campus may be driven at speeds lower than that of vehicles driven on city roads. FIG. 6 is a graph illustrating drive profiles of an electric vehicle, in accordance with an embodiment. In light of the above observation, drive profiles of existing vehicles is changed from existing drive profile 604 to a new drive profile 602. The new drive profile 602 provides higher acceleration and lower top speed as compared to existing drive profile 604. After configuring the vehicles to follow the new profile 602, data is gathered from the vehicles wirelessly to identify if there is any advantage, such as, increased drive range realized due to the new profile. In this case the new feature is introduced by reprogramming EMS 112 of each of the vehicles to follow the new profile 602.
  • In an embodiment, the new feature may be introduced in the EPS 104 by introducing one or more components in the EPS 104. For example, if introduction of a new type of battery in a variant of EPS 104 has to be validated, then the new type of battery is introduced in the existing EPS 104 for validation. Subsequently, data from the EPS 104 is collected wirelessly to validate introduction of the new type of battery.
  • The embodiments disclosed herein can be implemented through at least one software program running on at least one hardware device and performing network management functions to control the network elements. The network elements shown in FIG. 1 include blocks which can be at least one of a hardware device, or a combination of hardware device and software module.
  • The embodiment disclosed herein describes facilitating validation of introduction of one or more features in a variant of an electrically powered system. Therefore, it is understood that the embodiments disclosed include a program and a computer readable medium having data stored therein. The computer readable medium can contain program code for implementing one or more steps of the disclosed methods. The disclosed embodiments also include a server or any suitable programmable device configured to execute that program code. One or more of the disclosed methods can be implemented through or together with a software program written in, e.g., very high speed integrated circuit hardware description language (VHDL) or another programming language. Further, the disclosed methods can be implemented by one or more software modules being executed on at least one hardware device. The at least one hardware device can include any kind of portable device that can be programmed. The at least one hardware device may also include devices that can be programmed (e.g., a hardware device like an ASIC, a combination of hardware and software devices, such as an ASIC and an FPGA, or at least one microprocessor and at least one memory with software modules located therein). The methods described herein can be implemented partly in hardware and partly in software. Alternatively, embodiments may be implemented on different hardware devices, e.g. using a plurality of CPUs.
  • The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments disclosed herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments disclosed herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments disclosed herein can be practiced with modification within the spirit and scope of the embodiments as described herein.

Claims (17)

1. A method for facilitating validation of introduction of one or more features in a variant of an electrically powered system which is at least partially powered by electricity, the electrically powered system comprising an energy storage system adapted to store electric energy, an energy consumption system configured to at least partially consume electric energy from the energy storage system, and an energy management system configured to at least manage the energy storage system and the energy consumption system, the method comprising:
introducing the one or more features in a plurality of electrically powered systems which are at least partially powered by electricity;
collecting data corresponding to at least one of the energy storage system and the energy consumption system of each of the plurality of electrically powered systems, based on the data required for validating the features introduced in the electrically powered system; and
transmitting the data corresponding to at least one of the energy storage system and the energy consumption system to a remote location, thereby enabling analysis of the data, at the remote location, for validating introduction of the at least one feature in the variant of the electrically powered system.
2. The method according to claim 1, wherein introducing the features in the plurality of systems comprises introducing the features in the systems which are currently used by consumers.
3. The method according to claim 1, wherein one or more of the systems in which the features are introduced are located in distinct geographic locations.
4. The method according to claim 1, wherein introducing the features in plurality of systems comprises, reprogramming the energy management system of each of the systems to introduce the features.
5. The method according to claim 4, wherein reprogramming the energy management system comprises, reprogramming the energy management system using a wireless network.
6. The method according to claim 4, wherein reprogramming the energy management system comprises, reprogramming the energy management system using a wired network.
7. The method according to claim 1, wherein introducing the features in a plurality of systems comprises, introducing one or more components corresponding to the features, into each of the systems.
8. The method according to claim 1, wherein introducing the features in plurality of systems comprises, introducing variations of the features in one or more of the plurality of systems.
9. The method according to claim 1, further comprising processing collected data before transmitting.
10. The method according to claim 1, wherein transmitting comprises, transmitting to the remote location using a wireless communication network.
11. A system for facilitating validation of introduction of one or more features in a variant of an electrically powered system which is at least partially powered by electricity, the system comprising:
a plurality of electrically powered systems, wherein each of the electrically powered systems are configured to enable introduction of the features thereto, wherein each of the electrically powered systems comprises,
energy storage system adapted to store electric energy;
an energy consumption system configured to at least partially consume electric energy from the energy storage system; and
energy management system configured to:
collect data from the energy storage system and the energy consumption system;
send instructions to the energy storage system and the energy consumption system; and
transmit data to a remote location; and
data processing system located at the remote location, said data processing system configured to communicate with the electrically powered systems at least for receiving transmitted data, thereby enabling analysis of the data at the remote location for validating introduction of the at least one feature in the variant of the electrically powered system.
12. The system according to claim 11, wherein the electrically powered systems are currently used by consumers.
13. The system according to claim 11, wherein the electrically powered systems are electric vehicles which are at least partially powered by electricity.
14. The system according to claim 11, wherein the energy management system is configured to be reprogrammed to enable features in the electrically powered systems.
15. The system according to claim 14, wherein the energy management system is configured to be reprogrammed over a wireless communication network.
16. (canceled)
17. (canceled)
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