Vehicle coolant flow control during maximum AC cooling condition

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10696134
APP PUB NO 20180229584A1
SERIAL NO

15434521

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Importance

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Abstract

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Systems and methods can determine whether an air conditioning (AC) system of the vehicle is being operated under a maximum cooling condition. Responsive to determining that the AC system is being operated under the maximum cooling condition, it can be determined whether vehicle fluid temperatures meet associated predetermined thresholds. If none of the vehicle fluid temperatures meet the associated predetermined thresholds, a heater core valve can be switched to a closed position to reduce a flow rate of the coolant through a heater core. If one or more of the vehicle fluid temperatures meet the associated predetermined thresholds, the heater core valve can be switched to an open position to increase the flow rate of the coolant through the heater core. Such systems can force coolant to flow through the heater core to reduce vehicle fluid temperatures even when the AC system is being operated under the maximum cooling condition.

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Patent Owner(s)

Patent OwnerAddress
TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA INC6565 HEADQUARTERS DRIVE W1-3C PLANO TX 75024

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cosgrove, David W Royal Oak, US 17 30
Hirabayashi, Hidekazu Ann Arbor, US 45 286

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