Thermal management controls for a vehicle having a rechargeable energy storage system
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United States of America Patent
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Jan 13, 2015
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N/A
app pub date -
Sep 30, 2010
filing date -
Sep 30, 2010
priority date (Note) -
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Abstract
A method of operating a RESS thermal system in a vehicle having a coolant loop for directing a coolant through a RESS and a refrigerant loop configured to selectively cool the coolant flowing through a chiller in the coolant loop, including: determining a current target temperature range for the RESS based on a current vehicle operating mode and ambient temperature; determining a temperature of the RESS; determining if the temperature of the RESS needs to increase or decrease to be within the current target temperature range; if the determination is made that the temperature of the RESS needs to increase, determining if an active heating or a passive heating of the coolant will be employed, the active heating using a greater amount of energy over a shorter time period than the passive heating; and activating the determined active heating or passive heating of the coolant.
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