Whole vehicle test method and system based on signal simulation device

Abstract

The embodiment of the invention provides a whole vehicle test method and system based on a signal simulation device. The method comprises the steps that an upper computer obtains a to-be-tested function test case; the upper computer obtains a first analog signal of at least one first electronic control unit in the vehicle through a hard wire signal analog module; the upper computer obtains a second analog signal of at least one second electronic control unit in the vehicle through the CAN signal analog module; the upper computer modifies the first analog signal and/or the second analog signal based on the to-be-tested function test case to obtain a target analog signal; and the upper computer sends the target analog signal to a vehicle control unit of the vehicle so as to complete the test of the vehicle. The method is used for overcoming the defects of HIL testing and real vehicle testing in the prior art.

Description

technical field [0001] The invention relates to the technical field of vehicle testing, in particular to a vehicle testing method and system based on a signal simulation device. Background technique [0002] Through the popularization of vehicles and the development of technology, the application of electric vehicles, smart cars and other vehicles has become more and more extensive. In order to ensure the safety and reliability of vehicles, it is necessary to test the vehicle controller. Among them, before the vehicle controller is actually put into use, software function testing is required, mainly multiple rounds of hardware-in-the-loop testing (HIL). HIL test is widely used because of its high efficiency and wide coverage, but because the simulated real vehicle is used in the HIL test, that is, only the tested vehicle controller is the real object, and the rest of the controllers are model simulations , a scene that cannot be completely consistent with the actual vehicle...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a vehicle testing method and system based on a signal simulation device to solve the defects of the HIL test and the real vehicle test in the prior art, and realize a similar HIL test on the real vehicle to pass the real vehicle test. Complete all condition tests

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