Electric vehicle having a chassis, which supports a pair of front wheels and a pair of rear wheels, a passenger compartment, which is arranged between the front wheels and the rear wheels, at least one electric motor connected to drive wheels, an electric energy storage device, an air conditioning system, which is designed to air condition the passenger compartment by heating or cooling the air present in the passenger compartment, and a control unit, which is configured to activate the air conditioning system even when the vehicle is parked and connected to an external charging system, wherein the air conditioning system has at least one thermal device, which is designed to exchange heat directly and only with the chassis and the control unit is configured to activate the thermal device even when the vehicle is parked and connected to an external charging system.

A refrigerant management system in a heat flux management system for an electric vehicle and a method of refrigerant management is provided. The system includes a vehicle air conditioning circuit including a heat pump circuit and a refrigeration cycle refrigerant circuit, the air conditioning circuit including a heat pump condenser in thermal communication with a heat source, a refrigerant evaporator in thermal communication with the heat source, an evaporator associated with an expansion valve, and a refrigerant compressor where the components are fluidly connected to one another by a refrigerant line. An accumulator is fluidly coupled in the refrigerant line downstream of the heat pump condenser, the refrigerant evaporator and evaporator and upstream of the refrigerant compressor, and the air conditioning circuit is switchable between a heating mode and a cooling mode in which the refrigerant circuit is in fluid communication with the compressor by actuation of at least one valve.

A thermal management circuit for a hybrid or electric vehicle is disclosed. The thermal management circuit has a first reversible air conditioning loop in which a refrigerant circulates and includes a two-fluid heat exchanger arranged jointly on a second loop for the circulation of a heat-transfer fluid. The second loop for the circulation of a heat-transfer fluid includes a first circulation branch including in the direction in which the heat-transfer fluid circulates, a first pump, a first radiator arranged in an internal air flow, and a battery heat exchanger. A second circulation branch is connected in parallel with the second radiator and includes a second pump and an electric device for heating the heat-transfer fluid. A third circulation branch connected in parallel with the first pump and the battery heat exchanger includes the two-fluid heat exchanger.

The invention relates to a flow circuit system (1) for a vehicle, with a first flow circuit (10) guiding a first fluid and operable as a heat pump, and a second flow circuit (50) with a conveying device (31) guiding a second fluid, and a switching device (35), wherein in the provided flow direction of the first fluid downstream of a compressor (3) and upstream of an expansion element (15), at least one first heat exchanger (7) between the first and second fluids, wherein the second flow circuit (50) has at least two flow circuit modes, wherein in the first flow circuit mode, apart from the at least one conveying device (31) for the second fluid and the at least one first heat exchanger (7), at least one outside heat exchanger (37) which may be flowed through by the second fluid and is configured as a radiator is connected to the second flow circuit (50), and in the second flow circuit mode this at least one outside heat exchanger (37) is not connected to the at least second flow circuit (50) containing the conveyor device (31) and the first heat exchanger (7), and preferably is also a heating flow circuit. In this way more flexibility is created in the flow circuit system (1) for a vehicle.

A thermal control system for use in an electric vehicle includes a reservoir in fluid communication with a first loop having a first loop component and a second loop having a second loop component. First and second pumps are operable to circulate a liquid coolant to the first loop and the second loop, respectively. A first valve, a second valve, and a third valve are moved between alternate liquid coolant flow positions by a vehicle control unit to selectively change the first and second loops from a parallel orientation to a series orientation providing alternate methods to reclaim or exhaust excess heat generated by the first loop component or to provide redundancy in order to maintain operation of the first loop and the second loop in the event of a failure of the first pump or the second pump.

An electrified vehicle and method for heating a passenger cabin of an electrified vehicle that may include an internal combustion engine in addition to an electric machine and a traction battery for supplying the electric machine control an electric heating element to store thermal energy while the vehicle is connected to an external power source that is also used to charge the traction battery, and to extract stored thermal energy during operation of the vehicle with the electric heating element turned off to extend the electric driving range of the vehicle while also providing heat to the passenger cabin. The electric heating element may positioned and controlled to heat one or more elements directly by mechanical contact, or indirectly by heating a circulating liquid coolant to a temperature above a current or anticipated external ambient temperature.

An indoor heating line is arranged to pass through a heater core for a coolant heater and indoor air conditioning, and is provided with a first pump so that coolant can flow. A battery heating line is branched from a downstream point of the heater core and connected to an upstream point of the coolant heater after passing through a battery heat exchange part for temperature-raising a high voltage battery, where the battery heating line includes a first heat exchange flow passage that connects a downstream point of the heater core to a first side of the battery heat exchange part, and a second heat exchange flow passage that connects a second side thereof and an upstream point of the coolant heater, where the first heat exchange flow passage and the second heat exchange flow passage are configured to mutually exchange heat.

A thermal management unit for controlling the temperature in an electric vehicle, a thermal management system including the unit and an electric vehicle including the thermal management system. The unit includes a heater, a cooling unit, a heat exchanger, six input ports and six output ports for connecting external pipes, three three-way valves, a two-way valve and piping for thermal fluid. The components of the thermal management unit are connected via piping such that excess heat from a vehicle component can be directed to heat the cabin and/or energy storage system of the electric vehicle. Also, one heater and one cooling unit are used to heat or cool both the cabin and the energy storage system.

An integrated thermal management system for vehicles includes: a first cooling line; a second cooling line; a refrigerant line; and a bypass line configured to diverge from the second cooling line, to be connected to a chiller, and to allow a coolant to bypass a second radiator and to circulate between a high-voltage battery and the chiller.

Provided is a vehicle including: a vehicle main body including an electrical device that generates heat when the vehicle travels; a heat exchanger that performs heat exchange between outside air and a refrigerant; and cooling piping that constitutes a flow passage through which the refrigerant circulates between the electrical device and the heat exchanger, with a part of the flow passage being routed on a lower surface side of and in contact with a floor panel that constitutes a part of the vehicle main body.