Study of integrative performance test system for the automobile engine control unit

Aiming at the control complex of automobile engine control unit (ECU), a test system of the automobile engine control unit was designed . The system is composed of the input signal simulate module, measurement and control module, signal collection and disposal module, communication module etc. By means of simulating the signal of sensors, such as the crankshaft position sensor, the throttle position sensor, and the air temperature sensor, the engine operation environment and the real time condition were simulated and tested. The collected signal of the fuel injection and the ignition signal were analyzed. The development and testing of engine ECU were facilitated.