US 11,807,074 B2
Vehicle cabin comfort management system
Michael H. Carlson, Farmington Hills, MI (US); Kyle Holihan, South Lyon, MI (US); Cameron Paul Smith, Milford, MI (US); Anthony James Donatelli, Waterford, MI (US); and Lawrence P. Ziehr, Clarkston, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Dec. 20, 2021, as Appl. No. 17/555,915.
Prior Publication US 2023/0191880 A1, Jun. 22, 2023
Int. Cl. B60H 1/32 (2006.01)
CPC B60H 1/3204 (2013.01) [B60H 1/3205 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A thermal management system for a vehicle, comprising:
a plurality of fluid flow circuits including:
a heating ventilation and air conditioning (HVAC) circuit circulating a flow of refrigerant therethrough, the HVAC circuit including:
an evaporator;
a chiller heat exchanger arranged in a parallel relationship with the evaporator;
a first expansion valve disposed upstream of the evaporator;
a second expansion valve disposed upstream of the chiller heat exchanger; and
a propulsion cooling circuit heat exchanger disposed fluidly upstream of the first expansion valve and the second expansion valve; and
a propulsion cooling circuit circulating a flow of coolant therethrough, the flow of coolant utilized to condition one or more propulsion components of the vehicle, the flow of coolant directed through the propulsion cooling circuit heat exchanger to exchange thermal energy with the flow of refrigerant, thus subcooling the flow of refrigerant; and
a controller operably connected to one or more control points of the thermal management system, the controller configured to adjust the one or more control points to achieve a target amount of subcooling of the flow of refrigerant at the propulsion cooling circuit heat exchanger.