The present disclosure provides a vehicle side rail, an electric transmission system, a powertrain assembly and a corresponding vehicle. The vehicle side rail according to the present disclosure includes a profile body that further comprises a housing and a conduit disposed in the housing, wherein the conduit connects a coolant pump and an electric transmission cooling system and transmits coolant between them.

A vehicle includes a gear mechanism connected to a driving wheel; a traveling electric motor configured to exchange heat with a heat exchange medium shared by the gear mechanism and output motive power to the driving wheel via the gear mechanism; and a controller configured to change an operating point of the traveling electric motor to a stronger field side rather than a maximum efficiency point in a case that a temperature of the heat exchange medium is less than a predetermined temperature.

A four-wheel drive vehicle includes: (a) main drive wheels and auxiliary drive wheels; (b) a rotating machine as a drive power source; (c) a drive-power distribution clutch configured to allocate a part of a drive power outputted to the main drive wheels from the drive power source, to the auxiliary drive wheels, so as to distribute the drive power to the main drive wheels and the auxiliary drive wheels with a drive-power distribution ratio between the auxiliary drive wheels and the main drive wheels, such that the drive-power distribution ratio is variable with an engaging force of the drive-power distribution clutch being controlled; and (d) a control apparatus configured, when determining that a heat load of the drive-power distribution clutch is large during deceleration running of the vehicle, to limit a regenerative torque of the rotating machine, as compared with when determining that the heat load is small.

A drive device that rotates an axle of a vehicle includes a motor, a transmission that includes a decelerator connected to the motor, a housing that accommodates the motor and the transmission, a temperature sensor to detect a temperature of the motor, and a controller to control the motor. Oil supplied to the transmission is accommodated in the housing. The controller limits an output of the motor based on a detection result of the temperature sensor.

A vehicle cooling structure to be applied to a vehicle includes a gear case, an inverter, a step-down converter, and a cooling passage. The gear case is to house a gear mechanism and oil of the vehicle. The inverter is disposed on an outer surface of the gear case and to be electrically coupled to a motor of the vehicle. The step-down converter is disposed on the outer surface of the gear case and electrically coupled to the inverter. The cooling passage is formed between an inner surface of the gear case and the inverter, and between the inner surface and the step-down converter. The cooling passage is configured such that coolant flows therethrough.

The present disclosure relates to a controller for controlling operation of at least first and second traction machines in a vehicle. The controller includes a processor configured to predict an operating temperature of each of said at least first and second traction machines for at least a portion of a current route. The processor determines at least first and second torque requests for said at least first and second traction machines. The at least first and second torque requests are determined in dependence on the predicted operating temperatures of the at least first and second traction machines. The processor generates at least first and second traction motor control signals in dependence on the determined at least first and second torque requests. The present disclosure also relates to method of controlling at least first and second traction machines in a vehicle.

A system and method for energy management of hybrid power generation systems is provided. In some implementations, an energy power management system (EPMS) may receive information indicating a health event for a hybrid power generation system comprising a battery. The EPMS may modify a battery charging condition based on the information indicating the health event. Further, the EPMS may direct the hybrid power generation system to charge the battery based on a state of charge (SOC) of the battery and the modified battery charging condition. Also, the EPMS may direct the hybrid power generation system to modify one or more system parameters based on the modified battery charging condition.

An electric vehicle includes a chassis, a rigid axle housing, and a suspension system control arm coupling the rigid axle housing to the chassis. The electric vehicle also includes first and second electric motors, each having a rotator and a stator. The stator of the first and second electric motors are rigidly fixed to the rigid axle housing. The electric vehicle also includes a coolant supply system coupled to a radiator and the rigid axle housing to supply coolant from the radiator to a coolant inlet of the rigid axle housing and to supply used coolant from a coolant outlet of the rigid axle housing to the radiator. A first mounting bracket is fixed to the chassis and the coolant supply system. A second mounting bracket is fixed to the rigid axle housing and the coolant supply system, and a third mounting bracket is fixed to the control arm and the coolant supply system.

An integrated electric power train comprises an electric machine, a mechanical speed converter and a transfer shaft each mounted in a common housing. The mechanical speed reducer includes a plurality of wheels and an output shaft; the electric machine includes a stator and a rotor, the stator attached to one of the walls of the housing; and the rotor and one of the plurality of wheels are each mounted on the transfer shaft for the transfer of rotational power therethrough from the rotor to the output shaft.

An electric vehicle includes a chassis, a rigid axle housing, and a suspension system control arm coupling the rigid axle housing to the chassis. The electric vehicle also includes first and second electric motors, each having a rotator and a stator. The stator of the first and second electric motors are rigidly fixed to the rigid axle housing. The electric vehicle also includes a coolant supply system coupled to a radiator and the rigid axle housing to supply coolant from the radiator to a coolant inlet of the rigid axle housing and to supply used coolant from a coolant outlet of the rigid axle housing to the radiator. A first mounting bracket is fixed to the chassis and the coolant supply system. A second mounting bracket is fixed to the rigid axle housing and the coolant supply system, and a third mounting bracket is fixed to the control arm and the coolant supply system.