Temperature control device for internal combustion engine
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United States of America Patent
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Jun 13, 2017
Issued Date -
N/A
app pub date -
Oct 16, 2015
filing date -
Mar 3, 2015
priority date (Note) -
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Abstract
A temperature control device for an internal combustion engine includes a determining drive processor and an abnormality determining processor. The determining drive processor drives an electric pump when the difference between the water temperature and the ambient temperature is greater than or equal to a predetermined value while the electric pump is stopped. The abnormality determining processor determines that at least one of the water temperature sensor and the ambient temperature sensor is abnormal on a condition that the decrease amount of the water temperature. The determining drive processor includes a stopping processor, which stops driving of the electric pump when the cumulative amount of coolant discharged from the electric pump reaches the predetermined cumulative amount with driving of the electric pump. The predetermined cumulative amount is set according to the volume of the engine passage between the inlet of the engine passage and the water temperature sensor.
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