Control device and control method for cooling fan
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United States of America Patent
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Jul 10, 2012
Issued Date -
N/A
app pub date -
Dec 21, 2006
filing date -
Jan 27, 2006
priority date (Note) -
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Abstract
A hybrid ECU executes a program including the steps of: setting a fan driving level F for a cooling fan, as based on a high voltage battery's temperature TB, SOC and input and output currents, and a vehicular cabin's internal temperature and background noise; detecting from a signal transmitted from a voltage sensor the voltage of an auxiliary battery serving as a power supply for the cooling fan; and setting a duty command value for the cooling fan from fan driving level F and the auxiliary battery's voltage so that the duty command value is smaller as a voltage of the auxiliary battery is higher.
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