EV Integrated Temperature Control System
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United States of America Patent
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Issued Date -
Jan 28, 2016
app pub date -
Jul 25, 2014
filing date -
Jul 25, 2014
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Abstract
A thermal management system is provided that allows efficient thermal communication between a refrigerant-based control circuit and a pair of non-refrigerant-based control circuits, where one of the non-refrigerant-based control circuits is thermally coupled to the vehicle's battery system and the other of the non-refrigerant-based control circuits is thermally coupled to the vehicle's drive train. The refrigerant-based control circuit may be operated either in a heating mode or a cooling mode and is coupled to the vehicle's HVAC system using a refrigerant-air heat exchanger, and to one of the non-refrigerant-based control circuits using a refrigerant-fluid heat exchanger. Multiple diverter valves allow the three thermal control circuits to be arranged in any of a variety of configurations, and to be coupled to any of a variety of radiators, thus allowing the system to efficiently regulate the temperature of the passenger cabin, the battery system and the drive train.
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