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Functional test system based on minimum battery management system and test method thereof

A battery management system and functional testing technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of poor applicability, inconvenient operation, and high cost of testing equipment, and achieve low cost, small size, and simple operating system Effect

Pending Publication Date: 2018-08-14
CHINA AVIATION LITHIUM BATTERY RES INST CO LTD +1
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Problems solved by technology

However, the cost of test equipment for this method is very high. Usually, the battery simulator only has a single battery simulation channel that costs at least 5,000 yuan. At present, electric vehicles have a relatively large demand for power system power, and the number of battery strings is large, up to 300 strings. , so the hardware cost of the battery simulator alone is as high as 1.5 million
Moreover, this method has poor applicability to the joint debugging test of the battery management system with one master and multiple slaves. The master control module and the slave control module need to be connected with the analog unit for test respectively. very high

Method used

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  • Functional test system based on minimum battery management system and test method thereof

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Embodiment Construction

[0030] The present invention will be described in detail in conjunction with accompanying drawing now. This figure is a simplified schematic diagram only illustrating the basic structure of the present invention in a schematic manner, so it only shows the components relevant to the present invention.

[0031] Such as figure 1 As shown, a functional test system based on the minimum battery management system of the present invention includes an upper computer test platform for parameter setting, display and simulation of at least one slave control module in the BMS battery management system and the upper computer test platform The connected BMS one-master-slave minimum system is used to provide the main control module and slave control module of the real BMS battery management system, collect the data of other modules and upload them to the host computer test platform for display;

[0032] The battery simulation unit is used to simulate the voltage signal of the single battery,...

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Abstract

The invention belongs to the technical field of new energy electric vehicle battery management system test, and particularly relates to a functional test system based on a minimum battery management system and a test method thereof. According to the method, the testing of an interlocking function of the battery management system with one main control and multiple slave control is achieved by setting up a minimum test system of a main control module and slave control module. A test unit comprises an upper computer test platform, a BMS-main-slave minimum system, an RS232 to CAN communication unit, a BMS power supply, a battery simulation unit, a temperature simulation detection unit, a high-precision universal meter, a hall shunt detection unit, a high voltage constant voltage source, a charging simulation unit and a direct current source. The test method has the advantages that the operation system is simple, the size of wiring toolings is small, and the cost of test equipment is low.

Description

technical field [0001] The invention relates to the technical field of new energy electric vehicle battery management system testing, in particular to a functional testing system based on a minimum battery management system and a testing method thereof. Background technique [0002] The main functions of the battery management system include: real-time monitoring of battery physical parameters, battery state estimation, online diagnosis and early warning, charge and discharge and pre-charge control, equalization and thermal management, etc. The performance of the battery management system directly affects the safety performance of the power battery. [0003] At present, there are mainly two methods for testing the battery management system: one is to conduct a docking test between the battery management system and a physical battery pack. This test method is the most realistic and direct, but there are problems in the test process such as long test time, difficulty in adjus...

Claims

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 赵宇王栋梁李若帆
Owner CHINA AVIATION LITHIUM BATTERY RES INST CO LTD
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