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.

An in-vehicle temperature control system includes a refrigeration circuit including an inter-media heat exchanger that dissipates heat from a refrigerant to a heat medium, the refrigeration circuit being configured to realize a refrigeration cycle, and a heat circuit including a heater core, the inter-media heat exchanger, and an engine heat circuit. The heat circuit includes an adjusting valve. When heating is performed by using heat obtained by the refrigeration cycle, the adjusting valve is controlled to a first state where the heat medium flows into the heater core from the inter-media heat exchanger, and when heating is performed by using heat obtained by an internal combustion engine, the adjusting valve is controlled to a second state where the heat medium flows into the heater core from the engine heat circuit.

An in-vehicle temperature control system includes a refrigeration circuit including an inter-media heat exchanger that dissipates heat from a refrigerant to a heat medium, the refrigeration circuit being configured to realize a refrigeration cycle, and a heat circuit including a heater core, the inter-media heat exchanger, and an engine heat circuit. The heat circuit includes an adjusting valve. When heating is performed by using heat obtained by the refrigeration cycle, the adjusting valve is controlled to a first state where the heat medium flows into the heater core from the inter-media heat exchanger, and when heating is performed by using heat obtained by an internal combustion engine, the adjusting valve is controlled to a second state where the heat medium flows into the heater core from the engine heat circuit.

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.

An air conditioner is configured to be switchable between a heating mode and a cooling mode. In the cooling mode, a high-temperature heat medium circulates between a high-pressure side refrigerant-heat medium heat exchanger and a high-temperature heat medium-outside air heat exchanger in a state where a refrigerant circulates in an air-cooling heat exchanger. In the heating mode, the high-temperature heat medium circulates between the high-pressure side refrigerant-heat medium heat exchanger and an air-heating heat exchanger, while a low-temperature heat medium circulates between a low-pressure side refrigerant-heat medium heat exchanger and a low-temperature heat medium-outside air heat exchanger, in a state where the refrigerant circulates in the low-pressure side refrigerant-heat medium heat exchanger.

An air conditioner is configured to be switchable between a heating mode and a cooling mode. In the cooling mode, a high-temperature heat medium circulates between a high-pressure side refrigerant-heat medium heat exchanger and a high-temperature heat medium-outside air heat exchanger in a state where a refrigerant circulates in an air-cooling heat exchanger. In the heating mode, the high-temperature heat medium circulates between the high-pressure side refrigerant-heat medium heat exchanger and an air-heating heat exchanger, while a low-temperature heat medium circulates between a low-pressure side refrigerant-heat medium heat exchanger and a low-temperature heat medium-outside air heat exchanger, in a state where the refrigerant circulates in the low-pressure side refrigerant-heat medium heat exchanger.

A control method of a heat pump system for a vehicle may include 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.

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.