关键词: 电控系统, 硬件在环, 传感器, 故障

Abstract:

Considering the limitation of traditional development method of engine management system(EMS), a method to establish sensor-fault simulation system was proposed. Firstly, a hardware-in-the-loop simulation platform, which was used for EMS function test, was developed in the LabVIEW and VeriStand environment. Secondly, by using this platform, a sensor-fault simulation system was set up for throttle position, intake air pressure, and engine water temperature. Finally, the real vehicle test of throttle position sensor-fault, for example, verified the effectiveness of the developed fault-tolerant packet. Then comparison between simulation and real vehicle test shows that the system established by this method can satisfy the test requirements, and has the advantages of higher reliability, convenience and precision.

Key words: engine management system, hardware-in-the-loop, sensor, fault