A battery device for a motor vehicle, having a first battery module with a first housing, a second battery module which is arranged next to the first battery module in a first direction (X) with a second housing, a coolant channel, and a battery module connector arranged in the coolant channel for electrically contacting the first and the second battery module. The first and the second housing have coolant inlet openings on respective opposite end sides in a second direction (Y) arranged orthogonally to the first direction (X). In each case one coolant outlet opening is arranged in the center of the first or second housing with respect to the second direction (Y) and leads into the coolant channel.

Typical active grille shutter vanes meet the frame at either end, with a small clearance between the parts, to avoid the parts binding together. This invention adds a set of soft flaps, which are molded in a two-shot process, to allow the vanes to seal against the frame while closed but sit free of the frame while open. This clearance is accomplished by adding a stepped wall to the frame component, to create an interference between the vane flaps while turning to the closed position, causing the flaps to be deflected in a gradual mariner, so the actuator motor is not taxed with a sudden increase in required torque.

An electric drive assembly with oil/water dual cooling is provided that includes a motor module, a gearbox module, a water cooling module and an oil cooling module. Lubricating oil is introduced into the front and rear windings of the motor through three oil conveying passages to improve the cooling performance of the motor. Moreover, the gearbox cavity and the motor cavity do not need to be sealed, which avoids the use of high-speed oil seal of motor shaft, and thus the cost of the drive assembly is reduced and the transmission efficiency is improved. The cooling fluid of the motor cools the lubricating oil through the heat exchanger of the gearbox, thereby solving the heat dissipation problem when the gearbox of the new energy vehicle operates at high speed constantly, and thus improving the service life and reliability of the gear and bearing.

A drive unit includes an electric drive motor for driving and an electric generator motor in a series hybrid vehicle. Each of the motors includes a helical cooling passage helically surrounding an outer periphery of its stator. The first and second electric motors are housed in an outer housing such that the rotor axes are parallel. The helical cooling passages of the motors are connected in series via a connecting passage. The coolant outlet of the upstream helical cooling passage is connected to the connecting passage. The coolant inlet of the downstream helical cooling passage is connected to the connecting passage. The coolant outlet of the upstream helical cooling passage and the coolant inlet of the downstream helical cooling passage are arranged at end portions on the same side in a direction of the rotor axes.

A bodyshell structure for an electrically driveable motor vehicle includes a ventilation channel formed by a plurality of structural components that are connected to one another and delimit respective cavities. The ventilation channel has at least one inlet opening for inflow of a venting gas that emerges from a drive battery of the motor vehicle in an event of a thermal event and has at least one outlet opening via which the venting gas is dischargeable into a surrounding of the motor vehicle. A venting gas treatment device is disposed inside the ventilation channel where the venting gas and/or particles entrained with the venting gas is treatable by the venting gas treatment device.

Air conditioning systems and methods for a vehicle having a start-stop engine system. The systems and methods cool the vehicle's passenger cabin when the vehicle's engine and air conditioning compressor are off.

An electric drive unit and method of assembling the same is disclosed. The electric drive unit includes a rotor having a rotor shaft, and gear shaft, where the rotor shaft is inserted into the gear shaft. The gear shaft is supported by two bearings, while the rotor shaft supported directly at one end by a bearing and at the other by the gear shaft. A wave spring is also disclosed that provides an axial loading to the rotor shaft. Also disclosed is a balancing ring secured to an end of the rotor via a locknut. The balancing ring can be machined in order to balance the rotor. The rotor shaft can be connected to the gear shaft via a spline connection. The rotor shaft can bear against the gear shaft via a pilot journal and pilot bore defined on the rotor shaft and gear shaft respectively.

The present disclosure provides a thermal management system for an electric vehicle. The electric vehicle may include a cabin, a battery system, a battery coolant loop including a battery coolant line thermally coupled to the battery system, a heat pump loop including a heat pump line thermally coupled to an internal heat exchanger, and a refrigerant-coolant heat exchanger thermally coupled to the battery coolant loop and the heat pump loop. The thermal management system may be configured to provide heating or cooling to the cabin or battery system depending on an operating mode.

In a cooling path of a motor, an oil control valve is provided between a motor cooling oil path and a first motor cooling path, a first heat exchanger is provided in the first motor cooling path, and a second heat exchanger is provided in a second motor cooling path. In a motor-drive mode, a valve control unit switches the oil control valve to the first motor cooling path side when an engine temperature is lower than a first threshold, and switches the oil control valve to the second motor cooling path side when the engine temperature is equal to or higher than the first threshold. In the first heat exchanger, motor cooling oil and engine oil exchange heat. In the second heat exchanger, the motor cooling oil and a coolant for the engine exchange heat.

Two cooling fans acting on different heat exchangers may be driven via parallel circuits from a variable displacement hydraulic pump. At least one of the circuits includes a two position valve operable by a control system to vary the flow resistance of the circuit to share the flow between the two fan motors responsive to the relative heat load on the heat exchangers. The pump displacement is controlled to provide a constant hydraulic output pressure irrespective of the operational state of the or each valve assembly.