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Device and method for automatically testing and calibrating parameters of battery management systems

A battery management system and automatic calibration technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of low test speed and no guarantee of test integrity, so as to improve research speed and enhance practical value , the effect of improving performance and reliability

Active Publication Date: 2012-06-20
安徽舟之航电池有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] Patents CN201010102766.2 and CN101793944A disclose a fault simulation system for battery management system development, testing, and calibration, which can realize the testing and calibration of the battery management system, but the testing process of this invention requires manual input of test instructions one by one, without mentioning the guarantee The integrity of the test, and the test speed is not high

Method used

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  • Device and method for automatically testing and calibrating parameters of battery management systems
  • Device and method for automatically testing and calibrating parameters of battery management systems
  • Device and method for automatically testing and calibrating parameters of battery management systems

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Embodiment 1

[0035] Adopt device and method of the present invention to test the performance of a lithium-ion battery management system:

[0036] First set up in this device, set up the battery model database to be tested, connect the battery management system to be tested on the device provided by the present invention, input test order and test parameter (such as test range) in test man-machine interface 102 , the maximum and minimum values ​​of technical parameters such as speed and frequency), and enter the command to start the test. The battery model database unit 100 starts to generate a time series of battery signals in a certain order, such as battery current series, battery voltage series, battery temperature series, etc., and since these series are all generated in the database, they are relevant and consistent sex. After the battery data sequence is output and driven by the signal output unit 103, a signal of a certain voltage or current value is generated and output to the bat...

Embodiment 2

[0038] Adopt the device and method of the present invention to automatically calibrate the voltage ratio parameter of the management system of a lithium-ion battery pack:

[0039] The battery charge or discharge model curve is pre-established in the battery model database unit 100, and the voltage operating range of the battery management system to be tested is input through the test man-machine interface 102, for example, +20V~+1000V; the test step is set, for example every Take a test point at 10V; set the test duration t1 and interval time t2; after startup, the database will automatically generate a voltage value every t2 seconds, and last for t1 seconds, and then increase the voltage value by 10V to generate the second Voltage test signal. The generated voltage value is output to the signal output unit 103, and the circuit converter inside the signal output unit 103 filters the received signal, and then calculates by the microprocessor, and outputs it to the digital-to-an...

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Abstract

The invention provides a device and method for automatically testing and calibrating parameters of battery management systems. The system comprises a battery model database unit, wherein the input end of the battery model database unit is connected with a testing man-machine interface; the battery model database unit is simultaneously connected with a parameter automatic adjustment unit; the output end of the battery model database unit is connected with a test data stream generation unit; the test data stream generation unit outputs signals to a signal output unit; one path of the signals of the signal output unit are output to a battery management system to be tested and the other path of the signals thereof are output to an error analysis unit; one path of input of the error analysis unit is the signal output unit and the other path of input thereof is the battery management system; the computation results of the error analysis unit are output to the parameter automatic adjustment unit; the adjustment amount is computed; the results after adjustment are output to the battery model database unit; then the battery model database unit outputs new data stream; and such a cycle is carried out until the parameter precision meets the design requirement. The device and the method have the following beneficial effects that: the parameters of the battery management systems can be automatically adjusted to optimize the parameters; and the device and the method have the advantage of automatic test and calibration of the parameters.

Description

technical field [0001] The invention relates to the technical field of battery management system testing, and more specifically, to a device and method for automatic testing and automatic parameter calibration of a battery management system. Background technique [0002] Battery packs are widely used in various fields, such as electric bicycles, electric vehicles, wind power generation equipment, solar power generation equipment and other electrical equipment. The types of power battery packs generally include lead-acid batteries, lithium-ion batteries, nickel-metal hydride batteries, etc. The battery management system is installed in the existing power battery components, such as the battery pack whose patent number is CN02100307.6. In the research process of the battery management system, it is necessary to continuously carry out the cycle process of software writing, testing, improvement, rewriting, .... At the same time, in the production process of the battery manageme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36
Inventor 吴红杰
Owner 安徽舟之航电池有限公司
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