Testing device for electric drive system of vehicle

Abstract

The invention discloses a testing device for an electric drive system of a vehicle. The testing device comprises a base, an electric drive system installation seat installed on the base, an ambient temperature adjusting chamber which covers the electric drive system installation base and is movably arranged on the base, wherein the electric drive system is installed on the electric drive system installation base. Since the ambient temperature adjusting chamber can be moved, the installation and disassembly of the electric drive system can be facilitated, the flexibility of the testing device can be improved, and the working efficiency of the testing device can be improved.

Description

technical field [0001] The invention relates to the field of vehicle technology, in particular to a test device for a vehicle electric drive system. Background technique [0002] With the depletion of fossil fuel resources such as oil and the increasingly serious environmental pollution, new energy electric vehicles are playing an increasingly important role in people's daily travel. Electric drive system, battery management system and vehicle control management system are the three key components of electric vehicles, among which the electric drive system is the power source of electric vehicles and determines the operating performance of electric vehicles. my country has a vast territory and complex and diverse natural environments. There are huge differences in temperature and humidity between the north and the south. The electric drive system of electric vehicles often works in harsh environments, including climbing, frequent acceleration and deceleration, overspeed, ove...

AI Technical Summary

Problems solved by technology

[0003] The working characteristics of the electric drive system will change greatly under different ambient temperatures. In a high-temperature environment, if the motor temperature is too high, the motor will demagnetize, the insulation will age rapidly, and the high temperature will cause the motor to be burned; while in a low-temperature environment Under these conditions, it is difficult for the electric drive system to start and work normally, which affects the use of vehicles in cold regions

The laboratory bench can only provide a room temperature environment, so the laboratory bench can only test the torque-speed characteristics of the electric drive system at room temperature, and test the high-efficiency area of ​​​​the motor, but cannot test the electric drive system at different ambient temperatures. It is impossible to study the characteristics of the electric drive system such as efficiency and high-efficiency area under different ambient temperatures through testing

[0004] In addition, the traditional laboratory bench is cumbersome when installing and disassembling the electric drive system, which increases the difficulty of the experiment, leads to a longer experiment time, and seriously affects the efficiency of the experiment

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