Vehicle cabin and rechargeable energy storage system heating
AssigneeGM Global Technology Operations LLC
InventorsSrinivasa Rao Vaddiraju, Jeffrey A. Bozeman
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Abstract
A heating, ventilation and air conditioning (HVAC) system for a vehicle having a rechargeable energy storage system includes a refrigerant circuit having a flow of refrigerant circulated therethrough. The refrigerant circuit includes a compressor, an internal condenser, and a chiller heat exchanger. A coolant circuit is fluidly connected to the refrigerant circuit and has a flow of coolant circulated therethrough. The coolant circuit includes the chiller heat exchanger, the internal condenser, a heater core, a rechargeable energy storage system (RESS), and a three-way coolant valve to selectably direct the flow of coolant through the RESS and/or along a bypass passage to bypass the RESS.
Claims20
A heating, ventilation and air conditioning (HVAC) system for a vehicle having a rechargeable energy storage system, comprising:
- a refrigerant circuit having a flow of refrigerant circulated therethrough, the refrigerant circuit including:
- a compressor;
- an internal condenser;
- and
- a chiller heat exchanger;
- and
- a coolant circuit fluidly connected to the refrigerant circuit and having a flow of coolant circulated therethrough, the coolant circuit including:
- the chiller heat exchanger;
- the internal condenser;
- a heater core;
- a rechargeable energy storage system (RESS);
- and
- a three-way coolant valve to selectably direct the flow of coolant through the RESS and/or along a bypass passage to bypass the RESS.
A method of heating a rechargeable energy storage system of a vehicle comprising:
- circulating a flow of refrigerant through a refrigerant circuit, the refrigerant circuit including:
- a compressor;
- an internal condenser;
- and
- a chiller heat exchanger;
- circulating a flow of coolant through a coolant circuit, the coolant circuit including:
- the internal condenser;
- a heater core;
- and
- a rechargeable energy storage system (RESS);
- heating the flow of refrigerant via operation of the compressor;
- selectably directing the flow of coolant to one or more of the RESS and a bypass passage to bypass the RESS via a three-way coolant valve;
- and
- heating one or more of the RESS and the heater core via the flow of coolant.
Dependencies are inferred from the claim text.