Disclosed are a thermal management system and a new energy vehicle. The new energy vehicle includes an electric motor and a thermal management system. The thermal management system includes a refrigeration cycle system, a flow path pump, a first thermal management object, a second thermal management object, and a plurality of three-way valves. The refrigeration cycle system and the flow path pump are separately connected to the plurality of three-way valves. The refrigeration cycle system and the flow path pump are connected to the first thermal management object and the second thermal management object through the plurality of three-way valves respectively. The plurality of three-way valves are separately controlled, to form a first coolant circulation loop and a second coolant circulation loop that are independent of each other, and separately control temperatures of the first thermal management object and the second thermal management object.

A vehicle battery cooling system includes a battery temperature sensor, a vehicle cabin temperature sensor, a discharge path via which a vehicle cabin, a battery chamber, and outside of a vehicle communicate with each other, a circulation path that circulates air between the vehicle cabin and the battery chamber, a switching unit that switches between the discharge path and the circulation path, and a controller. When a pressurization condition is satisfied, the controller operates the switching unit to select one of the discharge path and the circulation path based on measurement results of the battery temperature sensor and the vehicle cabin temperature sensor. The pressurization condition includes a condition that an air pressure in the vehicle cabin is higher than atmospheric pressure. When temperature of a battery is in a low cooling range and is higher than temperature in the vehicle cabin, the controller selects the discharge path.

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.

A battery cooling system for a vehicle and a method are disclosed. In particular, the battery cooling system may include: a battery cooling apparatus to selectively connected to a cooling apparatus and cool a battery by coolant flowing through the battery cooling apparatus; a battery management system to measure a temperature of the battery in a periodic time interval after a vehicle is turned off; and a controller to control the battery cooling apparatus to cool the battery when the temperature of the batter is higher than a threshold temperature.

The present disclosure relates to a thermal management system for a vehicle including a refrigerant system, a coolant system and a control unit. The coolant system includes a first control loop thermally coupled to an energy storage system, a second control loop thermally coupled to a drive train system, a third control loop thermally coupled to a radiator system, a first multiple valve unit and a second multiple valve unit, and a first heat exchanger configured to transfer heat to the refrigerant system. The first control loop, the second control loop and the third control loop are configured to transfer heat to the first heat exchanger. The first heat exchanger is arranged between the first multiple valve unit and the second multiple valve unit. The control unit is configured to switch the first multiple valve unit and the second multiple valve unit in a first mode to couple the first control loop with the second control loop to collectively transfer heat to the first heat exchanger independently of the third control loop.

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.

The present disclosure discloses a temperature adjustment method and a temperature adjustment system for a vehicle. The temperature adjustment method includes the following steps: obtaining a required power used for performing temperature adjustment on a battery; obtaining an actual power used for performing temperature adjustment on the battery; and adjusting an opening degree of an intra-vehicle cooling branch and an opening degree of a battery cooling branch according to the required power, the actual power, an intra-vehicle temperature, and an air conditioner set temperature.

A refrigerant cycle device includes a compressor, a radiator, a first expansion valve, a second expansion valve, a first evaporator, a second evaporator, and a controller. The controller is configured to switch between a first evaporator priority control and a second evaporator priority control. During the first evaporator priority control, the controller controls a throttle opening of the second expansion valve based on at least one of a temperature of a first evaporator, a temperature of a refrigerant flowing through the first evaporator, and a temperature of an air having exchanged heat in the first evaporator. During the second evaporator priority mode, the controller controls the throttle opening based on a refrigerant state of the second evaporator. When the at least one of the temperatures is equal to or greater than a switching temperature, the second priority mode is switched to the first priority mode.

A thermal management system includes a refrigerant loop, a motor coolant loop, and a battery coolant loop. The refrigerant loop includes a first refrigerant main-line, a second refrigerant main-line, a first refrigerant branch, and a second refrigerant branch. The first refrigerant main-line includes a compressor, the second refrigerant main-line includes a cabin condenser, the first refrigerant branch includes a cabin evaporator, the second refrigerant branch includes a radiator. The first refrigerant main-line and the second refrigerant main-line selectively communicate with one of the first and second refrigerant branches. The battery coolant loop includes a coolant main-line, a first coolant branch connected to the cabin evaporator, a second coolant branch connected to the cabin condenser, and a third coolant branch. The coolant main-line selectively communicates with at least one of the first to third coolant branches. The battery coolant loop connects to the motor coolant loop in series or in parallel.

A thermal management system includes a switching valve that switches between a first mode in which first and second flow paths are separated and a second mode in which parts of the first and second flow paths are connected. In the first mode, a control unit acquires measured values of first and second temperatures in the first and second flow paths and estimated values of the first and second temperatures when the switching valve is not in a slightly open state. The switching valve is in the slightly open state when the measured value of the first temperature is higher than the estimated value of the first temperature by a value greater than a first predetermined threshold and the measured value of the second temperature is lower than the estimated value of the second temperature by a value greater than a second predetermined threshold.