A method of engine stability using actual measurement value of mass air flow sensor and chattering detection logic of throttle position sensor signal

摘要

The invention Throttle Position Sensor (TPS) signal moment as the engine reliability disconnection implementation , the method confirming whether a predetermined speed or less and whether the normal engine speed of the throttle position sensor (TPS) and the air quantity sensor (MAF); As a result of the check, to determine the instantaneous disconnection step (chattering) of the TPS signal if satisfying the two conditions in said step ; Determined that the moment of the TPS signal in case of breakage failure mode (limp home mode) enters step in step ; After the failure mode entry MAF (Mass Air Flow) fuel injection quantity calculation step in air measured values of the sensor ; And comprises a top stage of the fuel injection .