A device for recovering and regulating thermal energy of an electric vehicle with an electrochemical generator wherein a fluid circulates, includes an air-conditioning circuit, a first heating or thermal energy recovery circuit for heating and a second cooling or thermal energy recovery circuit for cooling the electrochemical generator, an electric motor, an electronic circuit, and a braking circuit. A plurality of valves are arranged to put the air- conditioning circuit in communication with the first heating circuit or second cooling circuit, and means for controlling said valves arranged to allow, according to a temperature of the electrochemical generator, of the electric motor, of the electronic circuit and of the braking circuit, the circulation of the fluid from the air-conditioning circuit in the first heating circuit for a heating operation as well as the circulation of the fluid from the air-conditioning circuit in the second cooling circuit for a cooling operation.

An electric auxiliary heating system for a natural gas powered vehicle having a natural gas engine is provided to maintain a cab temperature upon cessation of operation of the natural gas engine. The present system selectively circulates previously heated coolant to an existing cab heating circuit to maintain a desired cab temperature, wherein upon the coolant temperate cooling to a predetermined temperature the auxiliary heating system initiates heating with electric heaters in a reservoir to provide heating of the coolant. A controller provides for the initiation and termination of the auxiliary heating corresponding to selected predetermined thresholds as well as a sensed oil pressure generated by the natural gas engine.

A temperature adjustment circuit for a vehicle includes a first temperature adjustment circuit for vehicle interior air conditioning or heating, a second temperature adjustment circuit that is configured to transfer heat with a battery, a connection path that is configured to connect the first temperature adjustment circuit and the second temperature adjustment circuit to form a connection circuit, and a first valve and a second valve that are configured to switch between an independent state where the first temperature adjustment circuit and the second temperature adjustment circuit are independent and a connection state where the connection circuit is formed.

A method for controlling heating of a hybrid vehicle is provided. The vehicle includes a duct flowing air into the indoor of the hybrid vehicle from the outside, a heater core for circulating the coolant heated from an engine inside the duct, a PTC heater heated by the power supplied from a high-voltage battery of the hybrid vehicle inside the duct, and a controller. The controller operates the engine and the PTC heater and heats the air flowing into the indoor of the hybrid vehicle through the duct. The voltage supplied to the PTC heater from a low voltage DC-DC converter (LDC) is changed based on the state of the engine and an auxiliary battery for supplying power to an electric component of the vehicle to apply power to the PTC heater.

A cargo transport heating system is utilized for a truck that includes a cargo containment and a combustion engine having a coolant inlet and a coolant outlet. The cargo transport heating system includes a heat exchanger, a coolant pump, and a combustion engine coolant having a low toxicity. The heat exchanger is disposed in the cargo containment, and is in fluid communication with the first coolant inlet. The coolant pump is in fluid communication with the coolant outlet and the heat exchanger, and pumps the combustion engine coolant through the first coolant inlet, the coolant outlet, and the heat exchanger.

A heating system and method for heating the interior of a vehicle, such as a motor vehicle, which has an air-air heat exchanger having a heat storage medium, and which is configured to transfer heat between exhaust air, drawn out of the interior, and intake air, supplied to the interior from the vehicle environment, between the exhaust air and the heat storage medium, and between the intake air and the heat storage medium.

Presented are joint active thermal management (JATM) systems with heat exchanger storage of surplus refrigerant, methods for making/operating such systems, and vehicles equipped with such systems. A JATM system includes a coolant loop that fluidly connects to a vehicle battery system for pumping thereto coolant, an oil loop thermally coupled to the coolant loop and fluidly connected to a vehicle powertrain system for pumping thereto oil, and a refrigerant loop thermally coupled to the coolant loop and operable to circulate refrigerant for heating/cooling a passenger compartment. An electronic controller determines if a current amount of refrigerant in the refrigerant loop exceeds a calibrated threshold for the current operating mode of the JATM system. If so, the controller determines if one of the refrigerant loop's heat exchangers is available to store excess refrigerant. If the heat exchanger is available, the refrigerant loop stores excess refrigerant in the available refrigerant heat exchanger.

A cooling system for a vehicle propelled by an electric machine. The cooling system is arranged, when the vehicle is operated in a braking mode, to control a first and a second radiator valve to direct a flow of fluid from a radiator through a first fluid circuit and prevent the flow of fluid from the radiator to enter the second fluid circuit, control a compressor arrangement to flow a refrigerant in a direction from a heat exchanger to a condenser of a third fluid conduit, and control a second circuit valve arrangement to direct a heat source fluid to circulate through a heat exchanger and an electric heat source.

A heating system of a vehicle includes: a cooling line in which a radiator mounted with a cooling fan is provided; a heating line including a cooling water heater heating cooling water and an internal heater provided therein, and fluidly connected to the cooling line; a first branch line fluidly connecting a first portion of the cooling line and a first portion of the heating line, and including a first electrically powered water pump and an electric part; a second branch line fluidly connecting a second portion of the cooling line and a second portion of the heating line, and including a second electrically powered water pump; a first valve provided in the cooling line, the heating line, and a branch point of the first branch line; and a second valve provided in the cooling line, the heating line, and the branch point of the second branch line.

A control method of a heat pump system for a vehicle includes a first cooling apparatus having a first radiator, a first water pump, an electrical component, a valve, and a branch line, which are connected by a first coolant line and circulate a first coolant by the first water pump to the electrical component; a second cooling apparatus including a second radiator and a second water pump connected by a second coolant line; and an air conditioning apparatus including a compressor, a heater, an expansion valve, and a heat exchanger which are connected by a refrigerant line circulated with a refrigerant.