Car body electric control system testing platform based on hardware-in-the-loop

Abstract

The invention discloses a car body electric control system testing platform based on hardware-in-the-loop. The car body electric control system testing platform comprises an upper computer (1), a testing equipment cabinet (2), a mobile terminal bench (3) and a laboratory car bench (4). The testing equipment cabinet is composed of a plurality of modules. The terminal bench is used for connection among the testing equipment cabinet, a controller to be tested and the laboratory car bench. The laboratory car bench is used for constructing switches of the whole car body and real loads. The upper computer is connected with a PXI real-time controller in the testing equipment cabinet through a network cable and monitors the operation of the testing platform in real time. An equipment cabinet power supply input module of the testing equipment cabinet is externally connected with a power supply and realizes power distribution and system protection of the equipment cabinet power supply. The mobile terminal bench is connected with the testing equipment cabinet through an equipment cabinet panel connector, is connected with the laboratory car bench and the controller to be tested through wire harnesses and is capable of simulating excitation signals of the controller to be tested. A controller fault injection module is capable of simulating a to-ground short circuit fault, a to-power-supply short circuit fault and an open circuit fault and is used for testing the fault diagnosis function of the controller.

Description

technical field [0001] The present invention relates to a test device and method for an automobile electrical system, in particular to an electronic control system for verifying a vehicle body, including a keyless entry controller (PEPS), a body controller (BCM), an adaptive headlight Hardware-in-the-loop (HIL) test platform for the four body ECUs of the regulator controller (AFS) and instrumentation (IPK). Background technique [0002] Due to the increasingly complex automotive electrical systems, in the development process of new models, it is necessary to conduct functional tests, performance tests and diagnostic tests on the body electrical control system to ensure the reliability and stability of the body electrical systems. At present, most of the automotive electronic product testing is to build a test environment through a manual bench, which has low reusability and is difficult to simulate extreme or dynamic conditions. It is highly dependent on testers and low in t...

AI Technical Summary

Problems solved by technology

At present, most of the automotive electronic product testing is to build a test environment through a manual bench, which has low reusability and is difficult to simulate extreme or dynamic conditions. It is highly dependent on testers and has low test efficiency; some automated equipment can only test A single automotive electronic controller cannot be tested for integration, or can only simulate a static environment and cannot be tested dynamically

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