Method and system for testing automobile hybrid power system

Abstract

The invention relates to a method and system for testing an automobile hybrid power system, and belongs to the technical field of automobile testing. The method comprises the following steps: acquiring monitoring information corresponding to different heat dissipation schemes under the same acceleration starting test condition; calculating the heat dissipation coefficient variation amplitude corresponding to each heat dissipation scheme according to the heat dissipation coefficient information of the automobile heat dissipation system corresponding to each heat dissipation scheme; calculating the confidence coefficient of the heat dissipation coefficient information corresponding to each heat dissipation scheme according to the working condition efficiency coefficient information of the automobile hybrid power system corresponding to different heat dissipation schemes; calculating a reference heat dissipation gain value corresponding to each heat dissipation scheme and a rationality index of the heat dissipation gain coefficient adjustment sequence; taking the reference heat dissipation gain value with the maximum rationality index as the reference heat dissipation gain value corresponding to the target acceleration starting condition; and obtaining a heat dissipation gain coefficient adjustment optimization sequence corresponding to the target acceleration starting condition according to the heat dissipation gain coefficient adjustment reference sequence. The service life of the heat dissipation system is prolonged on the premise that the heat dissipation requirement is met.

Description

technical field [0001] The invention relates to the technical field of automobile testing, in particular to a testing method and system for an automobile hybrid power system. Background technique [0002] During the accelerated start-up test of the vehicle hybrid system, the heat dissipation of the three-electric system is very complicated, so it is impossible to calibrate the heat dissipation parameters of the heat dissipation system during the test to balance the heat dissipation of the three-electric system. The current cooling system is mainly based on the target temperature control of PI, PD and PID technology. The purpose of the cooling system is to keep the temperature of the three-electrical system within the target temperature range. The module needs to continuously adjust the size of the heat dissipation coefficient; however, the heat dissipation coefficient is easy to diverge during the adjustment process, which is not conducive to the smooth operation of the heat...

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Problems solved by technology

[0002] During the acceleration start test of the vehicle hybrid system, the heat dissipation of the three-electric system is very complicated, so it is impossible to calibrate the heat dissipation parameters of the heat dissipation system during the test to balance the heat dissipation of the three-electric system

The current heat dissipation system is mainly based on the target temperature control of PI, PD, and PID technologies. The purpose of this heat dissipation system is to make the temperature of the three-electric system within the target temperature range. The module needs to continuously adjust the heat dissipation coefficient; however, the heat dissipation coefficient is easy to diverge during this adjustment process, which is not conducive to the smooth operation of the heat dissipation system and may lead to a reduction in the life of the heat dissipation system

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