US 12,441,160 B2
Vehicle cabin and rechargeable energy storage system heating
Srinivasa Rao Vaddiraju, Troy, MI (US); and Jeffrey A. Bozeman, Rochester Hills, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Nov. 9, 2021, as Appl. No. 17/521,990.
Prior Publication US 2023/0147794 A1, May 11, 2023
Int. Cl. B60H 1/00 (2006.01); B60H 1/03 (2006.01); B60H 1/14 (2006.01); B60L 58/26 (2019.01); B60L 58/27 (2019.01); H01M 10/613 (2014.01); H01M 10/615 (2014.01)
CPC B60H 1/00899 (2013.01) [B60H 1/03 (2013.01); B60H 1/143 (2013.01); B60L 58/26 (2019.02); B60L 58/27 (2019.02); H01M 10/613 (2015.04); H01M 10/615 (2015.04); B60H 2001/00928 (2013.01)] 18 Claims
OG exemplary drawing
 
1. 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;
an evaporator; and
a chiller heat exchanger arranged in a fluidly parallel relationship with the evaporator; 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;
the rechargeable energy storage system (RESS);
a coolant heater; and
a three-way coolant valve to selectably direct the flow of coolant through both the RESS and the chiller heat exchanger and along a bypass passage to bypass all of the RESS, the chiller heat exchanger and the coolant heater;
wherein the three-way coolant valve is located along the coolant circuit between the heater core and the chiller heat exchanger; and
further comprising a power electronics coolant loop fluidly connected to the coolant circuit;
wherein the flow of coolant is selectably directed through the power electronics coolant loop via a RESS valve positioned fluidly downstream of the RESS.