Performance test device for motor controller major loop of electric vehicle

Abstract

The invention discloses a performance test device for a motor controller major loop of an electric vehicle. The performance test device for the motor controller major loop of the electric vehicle comprises a major loop test device, wherein the major loop test device is integrated with an oscilloscope and a control interface thereof, a pulse generator, a test device and a test platform; the pulse generator and the test device are connected with the test platform, the oscilloscope and the control interface of the oscilloscope. Parameter indexes of the motor controller major loop can be accurately obtained through relevant tests on major loop performance; the major loop of the motor controller serves as the main power circuit of the electric vehicle, so that measurement of the key parameters has very realistic significance; according to the design of the test device, the key performance parameters in the motor controller major loop can be tested at the same time on an integrated test platform, so that the use ratio of equipment is improved, and the repeated test is avoided. The measurement of key parameters is reasonable and valid, and the key performance indexes, such as short-circuit protection time and validity, major loop stray inductance measurement, spike voltage and IGBT (Insulated Gate Bipolar Transistor) on-off delay can provide beneficial design parameters and references for the design of the motor controller.

Description

technical field [0001] The invention relates to the field of power electronic transmission, in particular to a performance testing device for a main circuit of a motor controller of an electric vehicle. Background technique [0002] With the vigorous development of new energy vehicles, the development of some testing technologies related to the core technology of electric vehicles has research value and market prospects. The performance parameters of the main circuit of the motor controller directly determine whether the power system of the electric vehicle can run smoothly and safely. How to effectively and accurately obtain these related parameters is very important to improve the performance of electric vehicles. [0003] In the process of realizing the present invention, it is found that there are at least the following shortcomings and deficiencies in the prior art: [0004] Existing test devices can only detect a single parameter in the main circuit system of the mot...

AI Technical Summary

Problems solved by technology

[0004] Existing test devices can only detect a single parameter in the main circuit system of the motor controller, and several key parameters in the main circuit need to be measured separately, which increases the process of building the test bench

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