VEHICLE CABIN HEATING SYSTEM USING WASTE HEAT SUPPLEMENTED HEAT PUMP WITH SUPPLEMENTAL HEATER
Number of patents in Portfolio can not be more than 2000
United States of America
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N/A
Issued Date -
Nov 7, 2024
app pub date -
May 2, 2023
filing date -
May 2, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A vehicle cabin heating system of a vehicle, and methods of operation of such a heating system are provided. The vehicle cabin heating system scavenges waste heat from drivetrain components. A heat pump provides further heat scavenging for delivery to the vehicle cabin. A supplemental heater may be selectively activated to provide supplemental heating when operation of the heat pump and/or vehicle cabin heating system are inadequate to provide prompt heating response. The supplemental heater may, for example, be a positive temperature coefficient (PTC) heater positioned downstream of a heat pump heater and/or a heater core, and/or may include a positive high voltage coolant heater positioned within a coolant fluid circuit useable to heat coolant for delivery to the heater core and/or heat pump.
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