A kind of test method of battery management system service life
A battery management system and test method technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of prolonged development cycle, long time consumption, waste of cost, etc., and achieve the effect of shortening development cycle and reducing development cost.
Active Publication Date: 2017-05-24
HUIZHOU EPOWER ELECTRONICS
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Problems solved by technology
Doing this wastes the entire cost of the vehicle, requires personnel to drive, and needs to wait for seasons in hot and cold environments. The entire process takes a long time, prolongs the entire development cycle, and cannot detect problems in advance. Do a good job in preventive design
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[0015] In order to facilitate those skilled in the art to understand the technical content of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0016] like figure 1 As shown, in the battery management system life test method disclosed in the present invention, the battery management system is placed in a temperature control box with adjustable temperature, and the battery management system is respectively connected to the simulation test bench and the upper station outside the temperature control box. The upper computer realizes data communication with the battery management system through the CAN bus, and the upper computer includes a monitoring interface.
[0017] The temperature control box adjusts the internal temperature from -40 to 150°C; the simulation test bench adjusts the voltage and current of the internal analog power supply, and simulates the state of the battery ...
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The invention discloses a method for testing the service life of a battery management system. The method comprises the following steps: placing the battery management system in a temperature-adjustable temperature control box, and respectively connecting the battery management system to an analog simulation test platform and an upper computer out of the temperature control box; adjusting the internal temperature of the temperature control box; the analog simulation test platform adjusting voltage and current of an analog power supply inside the test platform, and simulating the state of the battery system in different charging stages; the upper computer monitoring each index measured by the battery management system for a long time, and determining normality of each index to analyze the service life condition of the battery management system. The method provided by the invention shortens the development cycle, reduces the development cost, simulates the reliability and service life at the product development stage, investigates the safety of electric vehicles at the early stage, and predicts the service life simulation, thereby laying the foundation for promoting long-term development of electric vehicles.
Description
technical field [0001] The invention relates to a battery management system, in particular to a method for testing the service life of the battery management system. Background technique [0002] Electric vehicles are a new strategic industry. As a key component of electric vehicles - battery management system (hereinafter referred to as BMS), there is currently no way to test its life, nor can it analyze and judge its life. Whether an electric vehicle operates reliably or not, its lifespan is restricted by the reliability and lifespan of its key components. At present, there is no way to measure the life of the battery management system of electric vehicles. Conventionally, it can only be installed in the vehicle to see the length of its life. Doing this wastes the entire cost of the vehicle, requires personnel to drive, and needs to wait for seasons in hot and cold environments. The entire process takes a very long time, prolongs the entire development cycle, and cannot d...
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IPC IPC(8): G01R31/00
Inventor 刘飞文锋阮旭松
Owner HUIZHOU EPOWER ELECTRONICS