Energy-type power cell evaluation system used for pure electric vehicle and evaluation method

A pure electric vehicle and power battery technology, which is applied in the direction of measuring electric variables, measuring electricity, measuring devices, etc., can solve the problems of lack of evaluation basis for the evaluation system and evaluation method of the energy type power battery used in pure electric vehicles, and improve the use efficiency Effect

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

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the existing energy-type power battery evaluation system and evaluation method fo

Method used

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  • Energy-type power cell evaluation system used for pure electric vehicle and evaluation method

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Experimental program
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specific Embodiment approach 1

[0024] The energy-type power battery evaluation system for pure electric vehicles in this embodiment, an energy-type power battery evaluation system for pure electric vehicles includes:

[0025] An energy-type power battery capability evaluation control module for pure electric vehicles used for database calls;

[0026] An energy-type power battery capacity evaluation database for pure electric vehicles used to evaluate the capacity of energy-type power batteries for pure electric vehicles; wherein, the energy-type power battery capacity evaluation database for pure electric vehicles also includes:

[0027] A charging capacity evaluation subroutine module for evaluating the charging capacity of an energy-type power battery for pure electric vehicles;

[0028] A subroutine module for evaluating the driving range capability of a pure electric vehicle;

[0029] A subroutine module for evaluating the acceleration capability of a pure electric vehicle to 100 kilometers;

[0030] ...

specific Embodiment approach 2

[0034] The energy type power battery evaluation method for pure electric vehicles using the above energy type power battery system for pure electric vehicles is implemented in the following steps:

[0035] Step 1: Under the condition that the ambient temperature is 0°C to 40°C, use the energy-type power battery performance test device for pure electric vehicles to test the voltage, current, and power of the energy-type power batteries for pure electric vehicles. Battery charging capability, vehicle mileage capability, vehicle acceleration capability of 100 kilometers, vehicle starting capability, braking energy recovery capability, energy efficiency, Coulomb efficiency capability, temperature and time parameters are tested; among them, pure electric vehicles use energy The type power battery performance test device is the power battery test device produced by Arbin Company of the United States, the model is EVTS400.

[0036] 1. Charging ability test:

[0037] First, charge th...

specific Embodiment approach 3

[0068] The process of evaluating the corresponding capabilities of the seven test test data described in Step 4 of the energy-type power battery evaluation method for pure electric vehicles in this embodiment is as follows:

[0069] Compared with the corresponding indicators of each capability at 25°C:

[0070] When the ambient temperature is 0°C to 10°C, the charging capacity of the energy-type power battery for pure electric vehicles, the driving range of the vehicle, the acceleration capacity of the vehicle to 100 kilometers, the starting ability of the vehicle, the braking energy recovery capacity, energy efficiency, Coulomb The seven abilities of efficiency ability are more than 90% of the corresponding indicators of each ability at 25°C, and the evaluation is excellent; it is more than 80% of the corresponding indicators of each ability at 25°C, and the evaluation is good; it is the corresponding index of each ability at 25°C If it is more than 70% of the corresponding i...

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Abstract

An energy-type power cell evaluation system used for a pure electric vehicle and an evaluation method belong to the cell evaluation system field. An existing energy-type power cell evaluation system used for the pure electric vehicle and an existing evaluation method lack an evaluation basis. The energy-type power cell evaluation system used for the pure electric vehicle comprises an energy-type power cell capability evaluation control module used for the pure electric vehicle and an energy-type power cell capability evaluation database used for the pure electric vehicle. In the energy-type power cell evaluation method used for the pure electric vehicle, under a 0 DEG C-40 DEG C condition, energy-type power cell capability data used for the pure electric vehicle, which is tested by an energy-type power cell performance test device used for the pure electric vehicle, is transmitted to the energy-type power cell capability evaluation control module used for the pure electric vehicle; the energy-type power cell capability evaluation control module used for the pure electric vehicle calls an evaluation criterion used by each subprogram module to evaluate seven test experiment data to carry out corresponding capability evaluation respectively so as to obtain an energy-type power cell capability conclusion used for the pure electric vehicle.

Description

technical field [0001] The invention relates to an evaluation system and evaluation method for an energy-type power battery for pure electric vehicles. Background technique [0002] The energy-type power battery for pure electric vehicles starts the motor and power battery system during normal driving, starting, climbing and acceleration. The energy-type power battery for pure electric vehicles plays the role of long-term power output and braking energy recovery, ensuring a long driving range of the vehicle. [0003] At present, in the field of pure electric vehicles, there is a lack of evaluation basis for power vehicle capability tests, and the corresponding evaluation systems and methods for energy-type power batteries for vehicles are still blank. The battery is used directly, and it is impossible to know whether the existing energy-type power battery meets the needs of pure electric vehicles. Accidents are prone to occur during driving, and the battery cannot be fully...

Claims

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Application Information

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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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