MEASUREMENT ERROR CORRECTING METHOD AND ITS DIAGNOSTIC METHOD FOR HEATING RESISTOR TYPE GAS FLOW MEASURING DEVICE

摘要

PROBLEM TO BE SOLVED: To execute a diagnosis or correction for the deviation of characteristics, caused by attaching a dust ingredient etc., on a hot wire equipped in a heating resistor type air flow measuring device for a hybrid vehicle.;SOLUTION: This measuring device is constituted, such that it measures the air flow under a prescribed conditions at a motor driving relatively more stable than the condition compared with an engine combustion time containing a noise component, and compares with the value of an initial state. Therefore, the effect by the contamination of the device is reduced, and the condition of engine combustion is always kept at the best condition, as a result, the hybrid vehicle engine which exhausts clean exhaust gas can be provided.;COPYRIGHT: (C)2004,JPO