Comprehensive test bed and method for power systems and controllers of electric vehicles

Abstract

The invention discloses a comprehensive test bed and method for power systems and controllers of electric vehicles. The comprehensive test bed integrates an alternating-current dynamometer, a battery simulator / tester and a test bed monitoring system, integrates a drive motor and controller, a power battery and management system, a temperature and humidity control cabinet, a water-cooling circulator, a power analyzer, a torque flange, a current sensor, a data acquisition system and other equipment and testing instruments and integrates a controller quick control prototype system, a CAN communicating and monitoring equipment and the like. The test bed can be used for comprehensive test of power units and controllers of the electric vehicles as well as various power systems adopting pure electric power, hybrid power and the like. The comprehensive test bed has the characteristics of feasible scheme, use convenience and complete functions, a user can modify the structure and the function of the test bed conveniently, the comprehensive utilization rate of the test bed is increased, and the comprehensive test bed is wide in application and has great popularization value.

Description

technical field [0001] The invention relates to an electric vehicle power system and controller comprehensive test bench and method. Background technique [0002] Energy crisis and environmental pollution are two major problems facing the world today. Electric vehicles have become an inevitable trend of future automobile development due to energy saving and environmental protection. The performance of the power system and controller directly affects the power, economy and comfort of the vehicle, and its performance test plays an important role in the development of the entire electric vehicle system. [0003] Different from traditional fuel vehicles, the power system and controllers of electric vehicles are mainly electrical equipment and power electronic equipment, mainly including key components such as drive motors and their controllers, power batteries and their management systems. Simulation, bench test, real vehicle field test, etc. Among them, the real vehicle fiel...

AI Technical Summary

Problems solved by technology

Among them, the real vehicle field test needs to be equipped with a special test vehicle, test site and skilled drivers. The test period is long, the investment is large, and the safety requirements are high. Therefore, most of the tests need to be completed on the bench in advance. At present, domestic The electric vehicle power system test bench generally has the disadvantage of being limited to testing a single component of the electric vehicle, or limited to testing a single power configuration, and has a single function. test

These deficiencies can no longer meet the current needs of electric vehicle research and development and testing

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