METHOD FOR PREVENTING ENGINE STALL IN SIGNAL DRIFT OF THROTTLE POSITION SENSOR
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United States of America Patent
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Jun 2, 2016
app pub date -
Apr 16, 2015
filing date -
Apr 16, 2015
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Abstract
A method for preventing an engine stall due to signal drift of a throttle position sensor (TPS) includes determining whether a manifold absolute pressure (MAP) sensor is faulty. If it is determined that the MAP sensor is normal, values sensed by first and second TPSs and the MAP sensor are measured. Whether or not the first and second TPSs are normal is determined by using the values sensed by the first and second TPSs. A normal TPS among the first and second TPSs is determined by comparing the values sensed by the first and second TPSs with the value sensed by the MAP sensor. A throttle opening degree is controlled using the normal TPS.
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