An electric-axle device for a commercial vehicle that can minimize the frequency of using a main brake when braking, may include a first clutch device disposed between a motor and a differential casing to transmit or block power, a second clutch device disposed between the differential casing and a disc, an electromagnetic brake applying a braking force to the disc, and that can increase a coasting distance and improve energy efficiency and durability of the motor by disengaging the first clutch device and the second clutch device such that kinetic energy, which is transmitted to the motor from an axle shaft, is blocked as if a neutral gear of a transmission is engaged, when the vehicle coasts.

A temperature control apparatus of a vehicle according to the invention stops activating a heat pump and supplies heat exchanging liquid from an engine passage to a battery passage when a warming of the battery is requested and a temperature of the heat exchanging liquid flowing out of the engine passage is equal to or lower than a permitted upper limit temperature. On the other hand, the apparatus activates the heat pump to cool the heat exchanging liquid and supplies the cooled heat exchanging liquid from the engine passage to the battery passage when the warming of the battery is requested and the temperature of the heat exchanging liquid flowing out of the engine passage is higher than the permitted upper limit temperature.

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 control system is installed on a vehicle having an electric motor as a drive power source. The control system includes an electronic control unit configured to switch the vehicle between an automatic driving mode using automatic drive control, and a manual driving mode in which the vehicle is operated by a driver. The electronic control unit is configured to limit the load factor of the electric motor, in the case where the temperature of the electric motor is higher than a first threshold temperature when the vehicle travels in the automatic driving mode, and the case where the temperature of the electric motor is higher than a second threshold temperature when the vehicle travels in the manual driving mode. The second threshold temperature is set to a value higher than the first threshold temperature.

Methods and systems are provided for estimating a drive train temperature for a journey. In one example, a method comprises requesting a vehicle operator to input one or more travel parameters for the journey, predicting travel parameters the vehicle operator omitted to input, and displaying an estimated fuel economy for the journey, where the estimated fuel economy is based on the estimated drive train temperature, which is based on the travel parameters.

A hybrid electric vehicle is capable of preventing over-temperature of an electric motor when the vehicle travels using only the output of the electric motor without driving an engine while passing through a specific zone using route information to a destination and a motor control method for the same. The motor cooling control method includes, when determined that a specific zone related to discharge of exhaust gas is present on a traveling route, determining a target motor temperature to be reached when entering the specific zone, determining a cooling distance necessary to reach the target motor temperature, determining the time at which to start cooling control using the determined cooling distance, and restricting a motor-driving range from the time at which to start the cooling control until entering the specific zone.

The invention relates to a method (100) for lowering the temperature of at least one component (410 . . . 470) in a vehicle (400), comprising the steps of: determining (110) future route-dependent data; lowering (130) the temperature of at least one component (410 . . . 470) as a function of the determined data.

A vehicle including: a first drive unit for driving wheels; a temperature control circuit for the first drive unit; and a control device, in which, when controlling the first drive unit under a first drive mode and executing a temperature increase control, the control device determines, based on a state of the vehicle, whether the drive mode of the first drive unit is changeable to a second drive mode in which an output from a first drive motor of the first drive unit is reduced, on determining that the drive mode is changeable to the second drive mode, the control device changes the drive mode to the second drive mode and continues the temperature increase control, otherwise the control device maintains the drive mode in the first drive mode, and ends the temperature increase control and then executes the normal temperature control.

A method for generating driving instructions for the driver of an electrically driven vehicle includes the following steps: (a) acquire route information for at least one route section of a driving route lying ahead of the vehicle, (b) determine temperature information, acting in a temperature-varying fashion on at least one drive component, for the at least one route section on the basis of the route information, and (c) output a driving instruction to the driver on the basis of the temperature information for the at least one route section.

Systems and methods for improving hybrid vehicle cooling are presented. In one example, an electric pump may supply transmission fluid to a transmission and a driveline integrated starter/generator to cool, operate, and lubricate driveline components. The electric pump may be selectively operated to conserve energy and to supply driveline cooling when driveline cooling may be desirable.