In order to shift a rotation angle of a rotor to a region of a normal mode (for example, a region c) from a region of a heater cut mode (for example, a region e), the rotation angle needs to pass through a region where a flow rate of a refrigerant which is caused to flow through all branch channels becomes zero (a region d). When the refrigerant has a high temperature, there is a possibility of the refrigerant being not cooled, and boiling. Therefore, when a request to switch a normal mode and a heater cut mode is issued, permission/non-permission of switch of the mode is determined by comparison of a temperature of the refrigerant detected by the temperature sensor 26 and an upper limit temperature of the refrigerant.

A vehicle includes a powertrain having an engine and at least one controller. The controller is programmed to selectively heat at least one of a plurality of components of the powertrain with a given amount of waste heat based on an expected decrease in friction power associated with an expected increase in temperature from the given amount of waste heat for each of the components.

A multi-mode powertrain system is described, and includes an internal combustion engine having stop/start capability. A method for controlling the multi-mode powertrain system includes circulating coolant to a heater core via an engine fluidic circuit that includes a water jacket of the internal combustion engine when temperature of the coolant is less than an engine fluidic circuit upper temperature threshold and the engine is in an ON state. Coolant is circulated to the heater core via a bypass fluidic circuit that excludes the water jacket of the internal combustion engine when temperature of the coolant is greater than a bypass fluidic circuit lower temperature threshold when the engine is in an OFF state.

A heat management system for vehicles comprises: a first circulation circuit which cools an engine body of an internal combustion engine and includes a first pump for pressure-feeding a refrigerant; a second circulation circuit including an exhaust heat recovery apparatus for recovering exhaust heat from the internal combustion engine, a heater core used for air-conditioning of a vehicle, and a second pump for pressure-feeding the refrigerant; communication passages allowing the first circulation circuit to communicate with the second circulation circuit; and an on-off valve provided in the first communication passage, and switching between the communication between the first circulation circuit and the second circulation circuit and the preventing of communication therebetween, wherein the on-off valve is controlled such that the refrigerant temperature of the first circulation circuit is higher than that of the second circulation circuit.

A refrigeration system and a start control method for a refrigeration system. The refrigeration system includes: a refrigeration loop having an exhaust port of a compressor, a condenser, a throttle element, an evaporator, and a suction port of the compressor connected in sequence by using a flow path; wherein a first valve is disposed between the throttle element and the condenser, and the first valve is at least capable of cutting off a refrigerant flow from the throttle element to the condenser; and a second valve is disposed close to the suction port of the compressor, and the second valve is used to control on/off of a flow path between the evaporator and the compressor. Starting load of the refrigeration system according to the present invention can be effectively reduced, so that the power and size of a drive component for providing power can also be reduced.

An object of the present disclosure is to achieve a reduction in the space taken up by a temperature management system in an electric automobile. A temperature management system for an electric automobile includes: an air-conditioning refrigerant circuit through which a refrigerant for adjusting a temperature in a passenger compartment of the electric automobile flows; a high-voltage device refrigerant circuit through which a refrigerant for cooling a high-voltage device flows; a battery refrigerant circuit through which a refrigerant for cooling a battery flows; and a tank that stores a refrigerant, wherein the air-conditioning refrigerant circuit, the high-voltage device refrigerant circuit, and the battery refrigerant circuit are connected to the tank, and a refrigerant is supplied from the tank to the air-conditioning refrigerant circuit, the high-voltage device refrigerant circuit, and the battery refrigerant circuit.

A vehicle battery management apparatus and a method thereof are provided. The vehicle battery management apparatus includes a battery that supplies power to a vehicle, a cooling device that cools the battery and a controller that monitors a state of the battery during parking and controls the cooling device to cool the battery with a cooling level corresponding to the state of the battery.

Systems and methods are provided for vehicle processing component cooling. A vehicle may include a compartment, a computing system including one or more processing components located within the compartment, and a cooling system configured to cool the one or more processing components. The cooling system may include a heat exchanger defining a plurality of flow channels. Each flow channel may be defined by an outlet and may be configured to provide cooling fluid. Operation of the processing components may heat the surrounding cabin air within the compartment through an air cooling operation. The cabin air from within the compartment may be directed through the heat exchanger to cool the cooling fluid. The compartment may be a trunk of the vehicle, and the heat exchanger may be located within the trunk and near the processing components.

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 vehicle thermal management system includes selective use of a liquid cooled gas cooler (LCGC) and conductive heat exchangers between heating, cooling, battery, and powertrain thermal management loops to increase temperature control and efficiency of the system.