Abstract

The functional testing system for gas-fueled automobile engine ECU (Electronic Control Unit) is designed based on LabVIEW (Laboratory Virtual Instrument Engineering Workbench). The system hardware is composed of engine ECU, data acquisition(DAQ) boards, a personal computer and some external circuits. This system mainly tests the three functions of ignition control and deceleration air feed cut-off solenoid valve relay control, stepper motor control. By the contrast of the system's results and the calibration data, it can be validated that whether the test system is accurate and reliable or not.

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