A recreational vehicle heating system comprises: a heating medium heater, a hot water supply heat exchanger, a heating medium circuit including a pump and a waste heat exchanger, and a heating medium tank compartmented by vertical partitions configured to allow for the heating medium flow over the partitions from one compartment to another in a sequential order, the hot water supply heat exchanger being arranged in one of the tank compartments, while the other tank compartments are part of heating medium circuits each including a pump and a waste heat exchanger. The first tank compartment in said sequential order is connected, via a conduit, to the heating medium heater, while the last tank compartment in said sequential order is configured to allow for the heating medium flow over to the conduit for the heating medium transfer by a pump via the heater to the first compartment.

An electric drivetrain for installation in a vehicle chassis. A generator coupled to an engine generates electric power for charging an array of batteries. The vehicle, including components and subsystems, may be powered electrically from the batteries, allowing the engine and generator to be easily replaced or customized for an industry, geographic region, fuel type, or a set of emission requirements. A thermal management system may determine a battery temperature for the set of batteries and cause one or more of a coolant system, a refrigerant system, an exhaust gas system, or an ambient air heat exchanger to add heat to the set of batteries or transfer heat away from the set of batteries.

An electric drivetrain for installation in a vehicle chassis. A generator coupled to an engine generates electric power for charging an array of batteries. The vehicle, including components and subsystems, may be powered electrically from the batteries, allowing the engine and generator to be easily replaced or customized for an industry, geographic region, fuel type, or a set of emission requirements. A thermal management system may determine a battery temperature for the set of batteries and cause one or more of a coolant system, a refrigerant system, an exhaust gas system, or an ambient air heat exchanger to add heat to the set of batteries or transfer heat away from the set of batteries.

There is disclosed an environmental control system for thermally conditioning air within an enclosed space comprising: a refrigerant circuit having a compressor, an indoor heat exchanger, an expansion device, and an outdoor heat exchanger. The system further comprises an intake flowpath for directing an intake flow of fresh air to the enclosed space, wherein a heat-transfer section of the indoor heat exchanger is located within the intake flowpath to thermally condition the intake flow of fresh air before entering the enclosed space. The system further comprises an exhaust flowpath for directing an exhaust flow of thermally conditioned air to an external environment. A recovery heat exchanger is provided to transfer thermal energy between the exhaust flow and the intake flow at a location within the intake flowpath that is upstream of the heat-transfer section of the indoor heat exchanger.

It is proposed a thermal management system for a fuel cell vehicle comprising: a first cooling circuit filled with a first coolant, having at least a first pump, a second cooling circuit filled with a second coolant, having at least a second pump, a third cooling circuit filled with a third coolant, having at least a third pump, wherein the first, second and third cooling circuits are fluidically independent from one another, wherein there is provided at least a selective heat exchanger arrangement, for selectively coupling thermally the third cooling circuit with the first cooling circuit and/or with the second cooling circuit, under predefined conditions.

In the application, since the flow of air outside the vehicle compartment flowing through the upstream heat exchange part and the flow of air outside the vehicle compartment flowing through the downstream heat exchange part are opposite flows, a second heat exchanger through which the air outside the vehicle compartment flowing from the first fan through the downstream heat exchange part flows, a first heat exchanger is an orthogonal heat exchanger, the second heat exchanger that is a component of a refrigeration cycle execution system, the air in the vehicle compartment, which flows in from the inside air inlet by the rotation of the second fan and is discharged from the outlet outside the vehicle through the first heat exchanger, and the air outside the vehicle compartment, are exchanged with the first heat exchanger, it can be miniaturized along with the improvement of electricity cost.

A heating, ventilation and air conditioning (HVAC) system for a vehicle having a rechargeable energy storage system includes a refrigerant circuit having a flow of refrigerant circulated therethrough. The refrigerant circuit includes a compressor, an internal condenser, and a chiller heat exchanger. A coolant circuit is fluidly connected to the refrigerant circuit and has a flow of coolant circulated therethrough. The coolant circuit includes the chiller heat exchanger, the internal condenser, a heater core, a rechargeable energy storage system (RESS), and a three-way coolant valve to selectably direct the flow of coolant through the RESS and/or along a bypass passage to bypass the RESS.

A heating, ventilation and air conditioning (HVAC) system for a vehicle having a rechargeable energy storage system includes a refrigerant circuit having a flow of refrigerant circulated therethrough. The refrigerant circuit includes a compressor, an internal condenser, and a chiller heat exchanger. A coolant circuit is fluidly connected to the refrigerant circuit and has a flow of coolant circulated therethrough. The coolant circuit includes the chiller heat exchanger, the internal condenser, a heater core, a rechargeable energy storage system (RESS), and a three-way coolant valve to selectably direct the flow of coolant through the RESS and/or along a bypass passage to bypass the RESS.

A vehicle includes an engine, a generator driven by the engine to generate an electric power, and a high-voltage battery charged with the electric power. An air heating in a vehicle interior is implemented by waste heat of the engine through which a heat medium is circulated and heated, and an air heating in the vehicle interior is implemented by a heat pump device consuming the electric power of the electric storage device. A hybrid ECU performs air conditioning control, and includes a determination device that determines whether to implement the air heating by the waste heat or the air heating by the heat pump device based on an engine body temperature, and a heating control device that selectively implements the air heating by the waste heat and the air heating by the heat pump device based on a determination result of the determination device.

A vehicle air-conditioning apparatus includes: a hot water heater core provided in a hot water circuit in which cooling water circulates in a heat source to recover waste heat of the heat source, and configured to exchange heat between the cooling water heated by the waste heat of the heat source and air to heat the air, thereby heating an inside of a vehicle by using the heated air; a heat pump configured to exchange heat between a refrigerant discharged from a refrigerant compressor and air by using an indoor heat exchanger to heat the air, thereby heating the inside of the vehicle by using the heated air; an electric heater configured to heat air to heat the inside of the vehicle; and a controller configured to select at least one of the hot water heater core, the heat pump and the electric heater to perform a heating operation.