Pure electric vehicle three-electric system integration test method and test bench

Abstract

The invention provides a pure electric vehicle three-electric system integration test method and a test bench, and the method comprises the steps: obtaining the operation data of a drive motor under different working conditions, taking the operation data as the target data, and carrying out the power consumption and performance test of a three-electric system on the test bench at different temperatures of a power battery system. The experiment table comprises a whole vehicle three-electric system module which is tested hardware equipment of a whole vehicle; the dynamometer module is used for carrying out a working condition simulation test on the whole vehicle three-electric system module; and the environment temperature simulation module is connected with the whole vehicle three-electricity system module and is used for simulating different environment temperatures of a power battery system of the three-electricity system module. The problems that in the prior art, when a real vehicle is debugged, the number of wire harness and program faults is large, and the faults are difficult to process are effectively solved, complex working condition simulation tests at different temperatures can be completed in the design stage, whole vehicle design indexes are verified in advance, and the development efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of pure electric vehicle manufacturing, and in particular relates to a test method and a test bench for the integration test of the three-electric system of the pure electric vehicle. Background technique [0002] The three-electric system of a pure electric vehicle includes a power battery system, a drive motor system, and a vehicle controller. It is the core component of a new energy vehicle, and its performance will directly determine the performance of the vehicle. [0003] However, in the current design stage of pure electric vehicles, due to the fact that theoretical calculations and simulation calculations are limited to the completeness and accuracy of calculation input parameters, it is easy to cause calculation deviations. At the same time, when testing a single system, it is impossible to accurately simulate its state when the vehicle is running, making it difficult to accurately evaluate the powe...

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Problems solved by technology

[0005] Based on the above-mentioned defects, the present invention provides a pure electric vehicle three-electric system integration test method and test bench, which effectively solves the problems in the prior art that there are many wiring harness and program faults during real vehicle debugging, and the faults are difficult to handle. The vehicle simulation software simulation and test bench test, using the ambient temperature simulation module, can complete the simulation test of complex working conditions at different temperatures in the design stage, verify the design indicators of the vehicle in advance, and improve the development efficiency

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