A method of rocking a vehicle free, the vehicle having a drive-train (1) with a torque adjusting element (3) which transmits drive torque to a vehicle wheel (5). The adjusting element (3) is controlled as a function of an accelerator pedal position. In a rocking-free situation in which the vehicle wheel (5) is to be moved from a depression (6) by alternating deflection and release of the accelerator pedal (8), the driver produces a cyclically fluctuating drive torque at vehicle wheel (5). The accelerator pedal position is continually monitored and upon recognizing a beginning or imminently beginning reduction of the accelerator pedal deflection or a parameter derived therefrom, an imminent full release of the deflection of the accelerator pedal (8) is concluded and the adjusting element (3) is actuated in anticipation so that the vehicle wheel (5) is immediately freed from a drive torque that has been active until then.

A vehicle control device separately controls driving powers distributed to right and left wheels. The vehicle control device is configured to execute a vehicle posture control for reducing the driving powers transmitted from a driving source to the wheels by a request from a vehicle side. The vehicle control device includes a slip detection unit and a torque control unit. The slip detection unit is configured to detect a slip in the wheels. The torque control unit is configured to determine whether to perform a torque control after an operation of the vehicle posture control according to a detection result of the slip and a state of a transmission. The torque control is a control to control a torque input to the transmission by a request from the transmission side. The torque control unit is configured to execute the torque control on the basis of a determination result.

The present invention relates to a method for operating a motor vehicle. A request for coupling a power take-off is detected. It is checked (12) whether relevant boundary conditions for coupling the power take-off are fulfilled. If the boundary conditions are fulfilled, a system pressure for actuating the power take-off clutch is built up (16). It is checked (18) whether sufficient system pressure to actuate the power take-off clutch has been built up. When sufficient system pressure has been built up, a confirmation signal is produced (20). In reaction to the confirmation signal, a driving transmission control unit is modified (34) in order to actuate the at least one shifting element of the driving transmission with a higher actuation pressure than with an unmodified driving transmission control unit.

An output torque control apparatus for hybrid vehicle is provided. The apparatus includes a motor controller that adjusts motor torque, an engine controller that adjusts engine torque, and a hybrid controller that operates the motor controller and the engine controller based on driving modes of a hybrid vehicle. The hybrid controller calculates transmission input torque corresponding to current request torque, confirms whether a current driving mode an EV mode or a HEV mode, calculates inertia compensation torque corresponding to the confirmed current driving mode, and calculates output torque based on the calculated inertia compensation torque and transmission input torque. Accordingly, at least one of the motor controller or the engine controller is operated based on the calculated output torque.

A method of operating a motor vehicle. A request for coupling a power take-off is detected. It is checked (12) whether relevant boundary conditions for coupling the power take-off are fulfilled. If the boundary conditions are fulfilled, a system pressure for actuating the power take-off clutch is built up (16). It is checked (18) whether sufficient system pressure to actuate the power take-off clutch has been built up. When sufficient system pressure has sufficiently been built up, a confirmation signal is produced (20). In reaction to the confirmation signal, a driving transmission control unit is modified (34) in order to actuate the at least one shifting element of the driving transmission with a higher actuation pressure than with an unmodified driving transmission control unit.

A method for controlling a hybrid drive system for a motor vehicle involves, in an operation in which both the internal combustion engine and the electric machine introduce drive torques into the hybrid gearbox to drive the drive wheel, employing third limit torques for the third gearbox gear are provided in a first mode, and second limit torques for the second gearbox gear are provided in a second mode. A maximum third limit torque of the first mode is greater than a maximum second limit torque of the second mode.

A motor vehicle has at least two drive motors, at least one drive motor being an electric machine; a high-voltage accumulator; and an automatic gearbox, having at least one fixed transmission ratio and at least one power-split transmission ratio for transmission regulation starting from the at least one fixed transmission ratio. The motor vehicle further includes an electronic control unit, which is designed such that, when a gear change command is present, the shifting element to be opened of the fixed transmission ratio to be disengaged is unloaded in a torque-controlled manner by at least two of the drive motors. For the shifting element to be opened, the torque load is calculated and observed. The torque load is observed with the objective of bringing about a load change by way of a zero crossing in order to produce a no-load state at the shifting element. For producing the no-load state of the shifting element to be opened, a first drive motor and a second drive motor are controlled in a power split manner such that they, in terms of rotational speeds, maintain the transmission of the previously engaged fixed transmission ratio, and, in terms of torque, put the shifting element to be opened in an at least nearly no-load state, and a load change is brought about at the shifting element to be opened by a differential rotational speed, opposite the calculated torque load at the shifting element to be opened, being specified at the shifting element.

Provided is a power drive system for a hybrid power vehicle, including an engine, a hybrid power module, and a dual input shaft speed change mechanism, wherein the hybrid power module consists of a motor, a composite planetary gear mechanism, a clutch, and a brake; the composite planetary gear mechanism is provided with at least four rotating shafts which are respectively connected to a rotor of the motor, a power output shaft of the engine, and a first input shaft and a second input shaft of the dual input shaft speed change mechanism; the brake is disposed on the power output shaft of the engine; and the clutch is disposed between any two of the four rotating shafts of the composite planetary gear mechanism.

A motor vehicle includes at least two drive motors, an automatic gearbox, and an electronic control unit, which, during a gear ratio adjustment between an engagement and a loading of a shift element, causes the shift element to be loaded with a predefined torque gradient at a first point in time at which at least one tooth-to-tooth position exists, up to a second point in time, cause the predefined torque to be limited to a maximum permissible torque during a predefined waiting period from the second point in time up to a third point in time, and cause the shift element to be further loaded with the previously predefined torque gradient after the waiting period or when the engaged state is detected.

An energy storage system for a military vehicle includes a battery housing defining a lower end and an upper end, a battery disposed within the battery housing, a bracket coupled to the battery housing at or proximate the upper end thereof, a lower support supporting the lower end of the battery housing, and an upper connector extending from the bracket. The upper connector is configured to engage a rear wall of a cab of the military vehicle.