Power cell evaluation system used for plug-in hybrid electric vehicle and evaluation method thereof

A technology for hybrid electric vehicles and power batteries, which is applied in the directions of measuring electricity, measuring electric variables, and electric digital data processing, etc. It can solve the problems of inability to detect battery performance, inability to distinguish plug-in operation requirements, and lack of evaluation basis for batteries.

Inactive Publication Date: 2015-11-11
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the power battery for plug-in hybrid electric vehicles lacks evaluation basis, cannot perform battery performance testing, and cannot judge whether it meets the requirements of plug-in operation, and proposes a battery for plug-in hybrid electric vehicles. Power battery evaluation system system and evaluation method

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  • Power cell evaluation system used for plug-in hybrid electric vehicle and evaluation method thereof

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specific Embodiment approach 1

[0024] Specific implementation mode one: combine figure 1 Describe this embodiment, a power battery evaluation system for plug-in hybrid electric vehicles, characterized in that: the power battery evaluation system for plug-in hybrid electric vehicles specifically includes:

[0025] The control module of the power battery capability evaluation system for plug-in hybrid electric vehicles used for database calling is connected to the power battery performance test device for plug-in hybrid electric vehicles through the CAN bus;

[0026] A power-type power battery capacity judgment database for hybrid electric vehicles used for battery capacity evaluation;

[0027] The power battery capacity determination database for plug-in hybrid electric vehicles also includes:

[0028] A charging capacity evaluation subroutine module for evaluating the charging capacity of a power battery used in a plug-in hybrid electric vehicle;

[0029] A mileage capability evaluation subroutine module ...

specific Embodiment approach 2

[0035] Embodiment 2: A method for evaluating a power battery for a plug-in hybrid electric vehicle, characterized in that: a method for evaluating a power battery for a plug-in hybrid electric vehicle is specifically carried out according to the following steps:

[0036] Step 1. Under the normal temperature environment of 0°C to 40°C, use the power battery performance test device (select the power battery performance test device produced by ARBIN company in the United States, the model is EVTS400) to test the voltage and current of the power battery for plug-in hybrid electric vehicles. , charging capability, driving range capability, vehicle starting capability, braking energy recovery capability, energy efficiency, coulombic efficiency capability, temperature and time parameters are tested;

[0037] 1. Charging ability test:

[0038] First, charge the power battery at a rate of 1C at 0°C to 40°C, from SOC (remaining power) to 0 to the charging capacity (Ah) corresponding to ...

specific Embodiment approach 3

[0069] Specific implementation mode three: what this implementation mode differs from specific implementation mode two is that six test test data are evaluated in the described step 4, and concrete process is:

[0070] Compare the six test results of charging capacity, driving range capability, vehicle start-up capability, braking energy recovery capability, energy efficiency, and Coulomb efficiency capability at an ambient temperature of 0°C to 40°C, with the charging capability at 25°C, and vehicle Six test results of charging capability, driving range capability, vehicle starting capability, braking energy recovery capability, energy efficiency, and Coulomb efficiency capability;

[0071] When the ambient temperature is 0°C to 10°C, the six capabilities of charging capacity, driving range capability, vehicle start-up capability, braking energy recovery capability, energy efficiency, and Coulomb efficiency capability are 90% of the corresponding indicators of each capability ...

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Abstract

A power cell evaluation system used for a plug-in hybrid electric vehicle and an evaluation method thereof are disclosed. The invention relates to the power cell evaluation system used for the plug-in hybrid electric vehicle and the evaluation method thereof and aims at solving a problem that a power cell used for the plug-in hybrid electric vehicle lacks an evaluation basis. The power cell evaluation system used for the plug-in hybrid electric vehicle comprises a power cell capability evaluation system control module used for the plug-in hybrid electric vehicle and a power cell capability determination database used for the hybrid electric vehicle, wherein the control module is used for calling a database and the determination database is used for cell capability evaluation. In the evaluation method of the power cell evaluation system used for the plug-in hybrid electric vehicle, under a normal temperature, a cell capability parameter of a power cell used for the plug-in hybrid electric vehicle is tested; tested data is transmitted to the power cell capability evaluation control module used for the plug-in hybrid electric vehicle; and an evaluation subprogram module is called to carry out capability evaluation. The system and the method are used for the cell evaluation system field.

Description

technical field [0001] The invention relates to a power battery evaluation system and evaluation method for a plug-in hybrid electric vehicle. Background technique [0002] The current power battery evaluation system and method for hybrid electric vehicles lacks the evaluation of power battery charging capacity, driving range capability, vehicle start-up capability, braking energy recovery capability, energy efficiency, and Coulomb efficiency capability for plug-in hybrid electric vehicles. systems and methods. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the power battery for plug-in hybrid electric vehicles lacks evaluation basis, cannot perform battery performance testing, and cannot judge whether it meets the requirements of plug-in operation, and proposes a battery for plug-in hybrid electric vehicles. Power battery evaluation system and evaluation method. [0004] A power battery evaluation system system for a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36G06F19/00
Inventor 武国良徐冰亮董尔佳陈继忠李相俊
Owner STATE GRID CORP OF CHINA
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