Methods and systems are provided for controlling coolant flow through parallel branches of a coolant circuit including an AC condenser and a charge air cooler. Flow is apportioned through each of an air-conditioning condenser, a charge air cooler (CAC), and a transmission oil cooler (TOC) of the coolant circuit to maintain an estimated transmission oil temperature (TOT) below a threshold. The TOT is estimated from a torque converter slip ratio.

Thermal management in a vehicle involves a compressor to output a refrigerant in vapor form for circulation in a refrigerant loop. A thermal management system includes a heating, ventilation, and air conditioning system in the refrigerant loop including an evaporator and an HVAC condenser, and an exterior condenser in the refrigerant loop configured to vent heat to an exterior of the vehicle. A first variable refrigerant flow valve controls a flow rate of the refrigerant output by the compressor into the HVAC condenser, and a second refrigerant flow valve controls a flow rate of the refrigerant output by the compressor into the exterior condenser. A controller controls the first refrigerant flow valve and the second refrigerant flow valve based on a target output temperature for the HVAC condenser.

The temperature control device for a vehicle, heats the interior of the vehicle and a battery, and an air conditioner for a vehicle having the same. The battery temperature control device includes a refrigerant circulation line having a compressor, an indoor heat exchanger, expansion means and an outdoor heat exchanger; a coolant circulation line which circulates a heater core mounted to heat the interior of the vehicle; and a coolant heat exchanger mounted to exchange heat between refrigerant circulating the refrigerant circulation line and coolant circulating the coolant circulation line, wherein a battery is arranged on the coolant circulation line.

A cabin condenser for a heating, ventilation, and air conditioning (HVAC) system for a battery electric vehicle (BEV). The cabin condenser includes a first cabin condenser portion and a second cabin condenser portion. A regulator is configured to control flow of refrigerant from the first cabin condenser portion to the second cabin condenser portion.

Methods and systems are provided for controlling coolant flow through parallel branches of a coolant circuit including an AC condenser and a charge air cooler. Flow is apportioned responsive to an AC head pressure and a CAC temperature to reduce parasitic losses and improve fuel economy. The flow is apportioned via adjustments to a coolant pump output and a proportioning valve.

A cooling system for cooling the battery of an electric vehicle is described including: a primary cooling circuit including a battery and a first heat exchanger, and a pump which circulates a first liquid coolant between the battery and the first heat exchanger; a secondary coolant circuit including an evaporator and a condenser, the evaporator being incorporated into the first heat exchanger, and at least one compressor which circulates a refrigerant fluid between the evaporator and the condenser; and a tertiary cooling circuit including a second heating exchanger and a dry cooler, the condenser being incorporated into the second heat exchanger, and a second pump which circulates a second liquid coolant between the second heat exchanger and the dry cooler.

Disclosed herein are a battery temperature control device for a vehicle, which heats the interior of the vehicle and a battery, and an air conditioner for a vehicle having the same. The battery temperature control device includes: a refrigerant circulation line (R) having a compressor (110), an indoor heat exchanger (130), expansion means (140, 150) and an outdoor heat exchanger (120); a coolant circulation line (W) which circulates a heater core (240) mounted to heat the interior of the vehicle; and a coolant heat exchanger (220) mounted to exchange heat between refrigerant circulating the refrigerant circulation line (R) and coolant circulating the coolant circulation line (W), wherein a battery (210) is arranged on the coolant circulation line (W). Due to the coolant circulation line which can heat the interior of the vehicle and the battery at the same time, the battery temperature control device and the air conditioner can heat the interior of the vehicle and the battery effectively.

A battery temperature control device for a vehicle, which heats the interior of the vehicle and a battery, and an air conditioner for a vehicle having same, the battery temperature control device including: a refrigerant circulation line (R) having a compressor (110), an indoor heat exchanger (130), expansion means (140, 150) and an outdoor heat exchanger (120); a coolant circulation line (W) which circulates a heater core (240) mounted to heat the interior of the vehicle; and a coolant heat exchanger (220) mounted to exchange heat between refrigerant circulating the refrigerant circulation line (R) and coolant circulating the coolant circulation line (W). Battery (210) is arranged on the coolant circulation line (W). The coolant circulation line which can heat the interior of the vehicle and the battery at the same allowing the battery temperature control device and the air conditioner heat the vehicle's interior and the battery effectively.

An air conditioner for a vehicle includes: a condenser that includes a core for allowing heat exchange between a refrigerant discharged from a compressor of a refrigeration cycle and air; and a switching unit that switches a refrigerant passage in the condenser. The switching unit switches the refrigerant passage between a first refrigerant passage that allows the refrigerant to flow throughout the core, and a second refrigerant passage that allows the refrigerant to flow through a part of the core by allowing the refrigerant discharged from the compressor to flow into a middle part of the core.

Methods and systems are provided for controlling coolant flow through parallel branches of a coolant circuit including an AC condenser and a charge air cooler. Flow is apportioned responsive to an AC head pressure and a CAC temperature to reduce parasitic losses and improve fuel economy. The flow is apportioned via adjustments to a coolant pump output and a proportioning valve.