A fluid adjusting device includes a reservoir, at least two connection channels, at least two supply channels and at least one one-way valve, the reservoir is provided with a fluid storage cavity and at least two fluid outlets in communication with the fluid storage cavity, and the fluid storage cavity is configured to store a cooling fluid; the at least two connection channels can be connected to at least two circulation circuits respectively; the at least two fluid outlets are in communication with the at least two connection channels by means of the at least two supply channels respectively; and the at least one one-way valve is arranged in at least one of the at least two supply channels, and is configured to enable a fluid to flow from the reservoir to the corresponding connection channel in unidirectional manner. The fluid adjusting device can accurately control temperatures.

An electric drive axle of a vehicle includes an electric motor having an output shaft. An idler assembly is drivingly coupled to the electric motor and a differential. The idler assembly includes a first gear-clutch assembly to facilitate a first gear ratio and a second gear-clutch assembly to facilitate a second gear ratio.

The present invention concerns a method of thermal management of a transmission of an axle (4) of an electrical vehicle and a circuit used for the method. The circuit comprises a coolant pump (1), one or more on-board units, a three way valve (5) and the axle (4), which axle (4) comprises a transmission. Coolant of a cooling system of the vehicle is made to pass the on-board units to pick up heat losses. The on-board units may be power electronics (2), an electrical machine (3), a battery and/or an on-board charger.

A thermal management system includes a high-temperature side heating medium circuit, a low-temperature side heating medium circuit, a device heating medium circuit, a circuit connection portion and a circuit switch unit. The circuit switch unit switches between an operation mode in which a heating medium that passed through the low-temperature side heating medium circuit is circulated through any one of the high-temperature side heating medium circuit and the device heating medium circuit via the circuit connection portion and an operation mode in which the high-temperature side heating medium circuit, the low-temperature side heating medium circuit, and the device heating medium circuit are connected via the circuit connection portion, and the heating medium is circulated through a heat generation device, a device heat exchange unit, a heating unit, and a heater core.

A multi-port rotary plug valve may be used in a fluid delivery system of a vehicle to control flow of coolant fluid between a radiator, an electric drive motor, a battery, vehicle electronics, and one or more bypass lines. The valve may include a valve body that has ports at two or more levels along a height dimension of the valve body and a plug assembly that is rotatably disposed in the valve body. In addition, the valve may include a single-piece, conical seal disposed between the valve body and the plug assembly that is free of seams or joints.

A thermal management system includes a refrigerant loop, a battery coolant loop, and a motor coolant loop. The refrigerant loop includes a compressor selectively communicating with at least two of a condenser, an evaporator, and a heat exchanger. The battery coolant loop includes a first bypass path connected to the heat exchanger. The motor coolant loop includes a second bypass path connected to the radiator. A valve package includes ten outer ports and eight inner channels. Three outer ports connect to the heat exchanger, one of which being connected to the first bypass path. Two outer ports connect to the power supply system. Two outer ports connect to the powertrain system. Three outer ports connect to the radiator, one of which being connected to the second bypass path. Eight of the ten outer ports selectively communicate with four of the eight inner channels.

A cooling system for electric vehicles, which enables air to be efficiently removed from a cooling circuit due to optimal placement of a reservoir tank, includes a first cooling circuit configured to cool a battery by coolant that circulates in accordance with operation of a first circulation pump and exchanges heat with a first heat exchange module, a second cooling circuit configured to cool a PE module using coolant that circulates in accordance with operation of a second circulation pump and exchanges heat with a second heat exchange module, the second cooling circuit being configured so that the coolant in the first cooling circuit circulates through the second cooling circuit, and a reservoir tank, which is continuously connected to the first and second cooling circuits to remove air in the coolant flowing through each of the first and second cooling circuits in the reservoir tank.

An electric vehicle cooling system, including: a first radiator installed at a vehicle and configured to cool a power unit driven by electrical power; and a second radiator installed at the vehicle, disposed at least at one side in a vehicle width direction, or another side in the vehicle width direction, of the first radiator so as not to overlap with the first radiator as viewed along a vehicle front-rear direction, and configured to cool an autonomous driving control device configured to control autonomous driving of the vehicle.

The present disclosure provides a cooling system for a vehicle including: a first cooling device including a first radiator and a first water pump connected by a first coolant line; a second cooling device including a second radiator and a second water pump connected by a second coolant line; a battery module provided in the second coolant line; a coolant connection line selectively connected to the first coolant line through a first valve; a battery module provided in the second coolant line; an autonomous driving controller provided on the coolant connection line; and at least one chiller connected to each of the first coolant line and the second coolant line. Temperatures of the battery module and the autonomous driving controller may be adjusted by the first coolant or the second coolant passing through the at least one chiller.

A thermal management system includes a first cooler that cools a first heat source, a first circulation path that connects the first cooler and a first pump, a second cooler that cools a second heat source, a second circulation path that connects the second cooler and a second pump, a changeover valve, and a controller. The changeover valve is switchable between first and second valve positions. The first and second circulation paths are separated from each other when the changeover valve is in the first valve position. The controller causes both the first and second pumps to operate when the temperature difference between refrigerants in the first and second circulation paths is more than a predetermined temperature difference threshold when the changeover valve is set to the first valve position and one of the first and second pumps is operating and the other is not operating.