Electric vehicle battery short circuit test bench with remote control function, and method

Abstract

The invention proposes an electric vehicle battery short circuit test bench with a remote control function, and a method, and belongs to the technical field of new energy automobile safety. The test bench comprises an upper computer, a short-circuit triggering controller, a temperature measurement circuit, a voltage measurement circuit, a current measurement circuit, a temperature control box, a battery protection box, an electromagnetic relay, a current sensor, a temperature sensor, a battery pack, and an electronic load. The test bench has functions of multipoint temperature measurement and remote control, and the upper computer monitoring system is remotely connected with the short-circuit triggering controller through a CAN bus, and controls the electromagnetic relay to trigger a battery short circuit fault. The test bench can achieve the short-circuit testing of a power battery pack under different working environment temperatures, and records the changes of all electric characteristics and temperature characteristics. An infrared temperature measurement instrument carries out real-time monitoring of thermal distribution, and provides a good basis for the research of the electric characteristics of a power battery in a short-circuit process.

Description

Technical field [0001] The invention belongs to the technical field of new energy vehicle safety, and in particular relates to an electric vehicle battery short-circuit test bench and method with a remote control function. Background technique [0002] Electric vehicles refer to the form of vehicles that use power batteries as vehicle energy sources and electric motor drive systems as power components. They have the advantages of energy saving and environmental protection; with the increasingly serious energy crisis and environmental pollution problems, new energy vehicles represented by electric vehicles It has become the focus of research and development in the automotive field around the world; however, there are many difficulties in the further promotion of electric vehicles. In recent years, electric vehicles have been exposed to fire and explosion accidents frequently. The safety and reliability of electric vehicles have become a bottleneck restricting the further developmen...

AI Technical Summary

Problems solved by technology

[0004] In order to establish the corresponding short-circuit fault model, management strategy and protection mechanism, it is necessary to study the fault characteristics of the battery external short-circuit, however, the external short-circuit of the battery is a very dangerous fault, accompanied by extremely high Therefore, ordinary battery test systems and experimental equipment cannot guarantee the smooth and safe conduct of the experiment.

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