Electric vehicle and fault detection method for exhaust gas recirculation system of internal combustion engine
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United States of America Patent
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Jun 2, 2015
Grant Date -
Apr 4, 2013
app pub date -
Sep 14, 2012
filing date -
Oct 4, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
An electric vehicle includes engine in which the amount of fuel supply is controlled by a throttle, a generator that produces electricity using the power of the engine, a motor outputs power to a drive shaft, an EGR system that supplies gas, exhausted from the engine, to a manifold of the engine, a clutch that switches between the transmission and the non-transmission of power from the engine to the drive shaft, a sensor that measures the change of a pressure of the manifold before and after the EGR system supplies the gas to the manifold, and ECU that performs fault detection of the EGR system using the sensor when conditions, where a series mode is selected, the degree of opening of the throttle is constant, are satisfied.
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