Evaluation method and system of power battery applied to plug-in hybrid electric vehicle adapting to cold region

A technology for hybrid electric vehicles and power batteries, which is applied in the field of power battery evaluation systems for plug-in hybrid electric vehicles, and can solve the problem of being unable to judge the low-temperature environment operation requirements of power batteries for plug-in hybrid electric vehicles, and having no plug-in hybrid electric vehicles. Issues such as the evaluation system of power batteries for automobiles, to achieve the effect of complete power output and comprehensive evaluation indicators

Inactive Publication Date: 2015-12-09
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that there is no power battery evaluation system for plug-in hybrid electric vehicles suitable for cold regions, and it is impossible to judge whether the power battery for plug-in hybrid electric vehicles meets the requirements for low-temperature environment operation

Method used

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  • Evaluation method and system of power battery applied to plug-in hybrid electric vehicle adapting to cold region

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specific Embodiment approach 1

[0026] A power battery evaluation system for plug-in hybrid electric vehicles adapted to cold regions, including:

[0027] The battery capacity evaluation database is used for the evaluation of the power battery capacity of plug-in hybrid electric vehicles in cold regions;

[0028] The battery capacity evaluation control module is used to control and call the database to evaluate the power battery capacity of plug-in hybrid electric vehicles in cold regions;

[0029] in,

[0030] The battery capacity evaluation database includes:

[0031] Low-temperature battery charging capability evaluation subroutine module, which is used to collect the data of low-temperature vehicle charging capability test of plug-in hybrid electric vehicles in low-temperature environment; and evaluate the low-temperature vehicle charging capability;

[0032] Low-temperature mileage capability evaluation subroutine module, which is used to collect the data of low-temperature mileage capability test of ...

specific Embodiment approach 2

[0037] Specific implementation mode two: combination figure 1 To describe this embodiment,

[0038] A method for battery evaluation using a power battery evaluation system for plug-in hybrid electric vehicles adapted to cold regions, comprising the following steps:

[0039] Step 1. Set the temperature of the low temperature box as the temperature of the power battery to be evaluated;

[0040] Step 2. When the temperature of the low temperature box reaches the temperature to be evaluated, put the plug-in hybrid electric vehicle power battery into the low temperature box and leave it for 13 hours; among them, the 13 hours of the low temperature box is to imitate the winter outdoors, from get off work to home A total of 13 hours of parking time between the parking time at 18:00 and the working time at 7:00 the next morning;

[0041] Step 3. Utilize the power battery performance test device for plug-in hybrid electric vehicles in cold areas (select the power battery performance t...

specific Embodiment approach 3

[0073] The temperature of the power battery to be evaluated in Step 1 of this embodiment is -20°C to 0°C.

[0074] Other steps and parameters are the same as in the second embodiment.

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Abstract

The invention provides an evaluation method and system of a power battery applied to a plug-in hybrid electric vehicle adapting to a cold region, relates to the evaluation method and system of the power battery applied to the plug-in hybrid electric vehicle, and particularly relates to the evaluation method and system of the power battery applied to the plug-in hybrid electric vehicle adapting to the cold region. According to the invention, the problem that the evaluation system of the power battery applied to the plug-in hybrid electric vehicle adapting to the cold region is solved. The battery evaluation system provided by the invention comprises a battery capacity evaluation database and a battery capacity evaluation control module. The battery capacity evaluation database comprises a low temperature battery charge capacity evaluation subroutine module, a low temperature driving range capability evaluation subroutine module, a low temperature whole vehicle start capability evaluation subroutine module, a low temperature brake energy recovery capability evaluation subroutine module, a low temperature energy efficiency capacity evaluation subroutine module and a low temperature coulombic efficiency evaluation subroutine module. The evaluation method and system, which are provided by the invention, are applicable to the field of battery evaluation.

Description

technical field [0001] The invention relates to a power battery evaluation system and method for plug-in hybrid electric vehicles, in particular to a power battery evaluation system and method for plug-in hybrid electric vehicles adapted to cold regions. Background technique [0002] With the development of automobiles, electric vehicles are becoming more and more popular. Although plug-in hybrid electric vehicles have broad prospects, there are certain restrictions on the popularity of plug-in hybrid electric vehicles; the performance of power batteries for plug-in hybrid electric vehicles Seriously restricting the popularity of plug-in hybrid electric vehicles, especially in cold regions and cold climates, the performance of power batteries for plug-in hybrid electric vehicles is more unstable; [0003] At present, there is no power battery evaluation system for plug-in hybrid electric vehicles that is suitable for cold regions. Therefore, there is still a lack of an effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
CPCY04S30/12Y02T90/167
Inventor 武国良徐冰亮董尔佳
Owner STATE GRID CORP OF CHINA
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