Electric vehicle power-on and power-off logic testing method and system based on dSPACE HIL

Abstract

The invention relates to an electric vehicle power-on and power-off logic testing method and system based on dSPACE HIL, and aims to solve the technical problem of circuit damage or vehicle part damage caused by closing of a high-voltage relay or part damage caused by improper logic control during existing electric vehicle power-on and power-off logic testing. The testing method comprises the following steps of: building a whole vehicle power-on and power-off model by utilizing Simulink, wherein the whole vehicle power-on and power-off model comprises a key signal model, a BMS model, an MCU model, a CAN communication model and a whole vehicle accessory model; downloading the whole vehicle power-on and power-off model to an HIL hardware cabinet, and carrying out communication port configuration; carrying out a real-time message interaction test; and compiling an automatic function test script, and carrying out an automatic function test. Meanwhile, the invention further provides an electric vehicle power-on and power-off logic testing system based on dSPACE HIL. The system comprises a first upper computer, a second upper computer and an HIL hardware cabinet. The testing method and system provide an effective verification method for the power-on and power-off functions of the VCU of the electric vehicle.

Description

technical field [0001] The invention relates to a test method for control logic of an electric vehicle, in particular to a dSPACE HIL-based test method and a test system for power-on and power-on logic of an electric vehicle. Background technique [0002] At present, with the increasing restrictive pressure of oil resources and the deteriorating ecological environment, the development of new energy vehicles is the trend of the automotive industry to alleviate the constraints on the development of the vehicle industry caused by resource shortages and environmental pollution, and pure electric new energy vehicles are emerging pregnancy. Since the control logic and performance of the pure electric vehicle controller play a decisive role in the performance of the new energy vehicle, it is of great significance to test the electric vehicle controller. [0003] In the development process of electric vehicle VCU (vehicle controller), system software and mechanical hardware are usu...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of circuit damage or vehicle component damage due to short circuit / open circuit caused by the closure of the high-voltage relay during the power-on and power-on logic test of the existing electric vehicle, or component damage due to improper logic control during the debugging process To solve the technical problems, a dSPACE HIL-based electric vehicle power-on logic test method and test system are proposed, which can comprehensively test the VCU control logic function of the vehicle power-on and power-on, prevent possible failures in time, and avoid electrical failures of the vehicle controller damage, or other components are damaged by improper logic manipulation during the debugging process

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