A combined cooling and water braking system for a vehicle comprises a first water recirculation loop having a first heat exchanger configured to cool water flowing in the first water recirculation loop, the first water recirculation loop comprising a water conduit for transporting heat away from a propulsion device configured to generate a propulsion power for the vehicle. A second water recirculation loop having a second heat exchanger is configured to cool water flowing in the second water recirculation loop. A retarder is configured to be coupled to a pair of wheels of the vehicle. The second water recirculation loop may be selectively used for cooling the propulsion device and for providing water to the retarder for water braking. There is also provided a method for cooling a propulsion device of a vehicle and water braking a pair of wheels of a vehicle.

A combined cooling and water braking system for a vehicle comprises a first water recirculation loop having a first heat exchanger configured to cool water flowing in the first water recirculation loop, the first water recirculation loop comprising a water conduit for transporting heat away from a propulsion device configured to generate a propulsion power for the vehicle. A second water recirculation loop having a second heat exchanger is configured to cool water flowing in the second water recirculation loop. A retarder is configured to be coupled to a pair of wheels of the vehicle. The second water recirculation loop may be selectively used for cooling the propulsion device and for providing water to the retarder for water braking. There is also provided a method for cooling a propulsion device of a vehicle and water braking a pair of wheels of a vehicle.

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.

An in-wheel motor for a vehicle includes: a stator with a connector attaching the stator to the vehicle, the connector including a shaft, an end plate of a larger diameter than the shaft, and a coolant passage through the end plate, the stator further including a hollow stator body with cylindrical outer surface and mounted to the connector. Cooling channels for circulating liquid coolant extend along the hollow stator body and are in fluid connection with the coolant supply duct, the cooling channels having an inlet for supply of liquid coolant to the plurality of channels and an outlet for discharging liquid coolant from the plurality of channels; wherein, at a side opposite from the connector member, the hollow stator body has an open end with a diameter larger than the diameter of the shaft. Also disclosed is a cooling jacket for such an in-wheel motor.

An integrated multi-port solenoid valve, comprising: at least two sub-solenoid valves (20), each sub-solenoid valve (20) comprising at least two connection ports; and at least one first joint (30), each first joint (30) comprising at least two connection joints, wherein at least one first connection port in the at least two connection ports is used for connection to other sub-solenoid valves (20), each first joint (30) is used for connecting any two sub-solenoid valves (20), and each connector joint is connected to the first connection port. The present integrated multi-port solenoid valve integrates multiple sub-solenoid valves, and any connection ports of each sub-solenoid valve is communicated with each other to meet control requirements of a variety of working conditions. The integrated multi-port solenoid valve has lightweight design, few components, a light weight, and low cost of use. Also provided are a vehicle thermal management system and a vehicle.

Disclosed is an expansion tank, including a cavity structure and a degassing flow channel, where the degassing flow channel is arranged on the expansion tank, a flow guide hole is provided on the degassing flow channel, and the degassing flow channel is in communication with the cavity structure by means of the flow guide hole; and a liquid inlet and a liquid outlet are provided at two ends of the degassing flow channel respectively and are used for being in communication with a vehicle cooling system. The expansion tank of the present application satisfies a degassing requirement, reduces usage amount of pipelines and pipe clamps, and reduces weight of a vehicle body.

Disclosed is an expansion tank, including a cavity structure and a degassing flow channel, where the degassing flow channel is arranged on the expansion tank, a flow guide hole is provided on the degassing flow channel, and the degassing flow channel is in communication with the cavity structure by means of the flow guide hole; and a liquid inlet and a liquid outlet are provided at two ends of the degassing flow channel respectively and are used for being in communication with a vehicle cooling system. The expansion tank of the present application satisfies a degassing requirement, reduces usage amount of pipelines and pipe clamps, and reduces weight of a vehicle body.

This disclosure details cooling systems for cooling electric components, such as electric machines, within electrified vehicles. Exemplary cooling systems may include a spray bar positioned relative to a rear face of a stator of the electric machine. In some embodiments, the spray bar may be positioned axially between the rear face of the stator and a torque converter housing. One or more nozzles of the spray bar are configured to direct a coolant between adjacent back irons of the stator, onto end windings of the stator, or both. Actively cooling the stator allows the electric machine to operate at higher torques and speeds, thereby increasing performance.

A coolant circuit for a drive device. It includes a first coolant sub-circuit and a second coolant sub-circuit, in each of which a device to be temperature-controlled is arranged and which are fluidically connected to one another via at least one connecting valve, wherein at least one coolant pump is provided in each of the two coolant sub-circuits, which is designed in at least one of the coolant sub-circuits as a fluid pump having variable delivery direction. The disclosure furthermore relates to a method for operating a coolant circuit for a drive device.

A coolant circuit for a drive device. It includes a first coolant sub-circuit and a second coolant sub-circuit, in each of which a device to be temperature-controlled is arranged and which are fluidically connected to one another via at least one connecting valve, wherein at least one coolant pump is provided in each of the two coolant sub-circuits, which is designed in at least one of the coolant sub-circuits as a fluid pump having variable delivery direction. The disclosure furthermore relates to a method for operating a coolant circuit for a drive device.