Abstract: A drive device for an all-wheel drive, two-track motor vehicle, in the drive train of which a first motor vehicle axle and, via a center clutch, a second motor vehicle axle are driven permanently by a drive assembly in driving operation. In the closed state of the center clutch, the second vehicle axle is engaged with the drive train, and, in the open state of the clutch, the second vehicle axle is decoupled from the drive train. In a driving situation with engaged all-wheel drive as well as with axle friction coefficients of varying size, a greater wheel torque can be taken up at the vehicle axle with a large axle friction coefficient than at the vehicle axle with a small axle friction coefficient, and a control instrument is provided, which, for engine torque limitation, limits the drive assembly to a maximum allowed engine torque.

Abstract: A drive device for an all-wheel drive, two-track motor vehicle, in the drive train of which a first motor vehicle axle and, via a center clutch, a second motor vehicle axle are driven permanently by a drive assembly in driving operation. In the closed state of the center clutch, the second vehicle axle is engaged with the drive train, and, in the open state of the clutch, the second vehicle axle is decoupled from the drive train. In a driving situation with engaged all-wheel drive as well as with axle friction coefficients of varying size, a greater wheel torque can be taken up at the vehicle axle with a large axle friction coefficient than at the vehicle axle with a small axle friction coefficient, and a control instrument is provided, which, for engine torque limitation, limits the drive assembly to a maximum allowed engine torque.

Abstract: A motor vehicle automatic gearbox, with infinitely-variable ratio, may be operated in a constant speed mode, or in an acceleration mode in which the motor revolution speed is increased or reduced in steps.

Abstract: The invention relates to an automatic gearbox, for a motor vehicle, with infinitely-variable ratio, which may be operated in a constant speed mode, or an acceleration mode, whereby the revolution speed in the acceleration mode can be increased or reduced in steps.

Abstract: Disclosed is a motor vehicle with an automatic gearbox, a gearbox control unit comprising several driving programs which control the gear switching operation and a selection lever for manual selection between a normal D driving program with automatic gearbox adjustment and a sporty S driving program. The motor vehicle also includes automatic gearbox adjustment and/or a manual driving program with manual gearbox adjustment. The gearbox control unit (3) is designed to automatically change from the S driving program or the manual driving program to the D driving program, depending on at least one operating parameter of the vehicle (1).

Abstract: A motor vehicle drive arrangement including a motor and a stepless automatic transmission for driving drive wheels has a normal operating mode for normal driving operation and a brake engagement operating mode for a situation of excessive slip of a drive wheel. During the brake engagement operating mode, strong fluctuations of the transmission ratio could arise, or the vehicle might drive with a low motor torque but a high drive rotational speed, which are uncomfortable for the driver. To increase driving comfort, a normal motor torque value is prescribed in the normal operating mode, and in the brake engagement operating mode the motor torque is reduced to an actual motor torque value. A difference torque is determined between the normal and actual motor torque values. A maximum desired nominal drive rotational speed is varied dependent on the difference torque.

Abstract: A drive arrangement of a motor vehicle, which comprises a motor and a stepless automatic transmission for the driving of drive wheels, is typically operated in a normal operating mode in connection with normal driving operation and in a brake engagement operating mode in connection with a slip of at least one of the drive wheels that exceeds a certain value. During the brake engagement operating mode, strong fluctuations of the transmission's transmission ratio can arise, or the case can arise, that the motor vehicle drives with a low motor torque but a high drive rotational speed. This is perceived as uncomfortable by the driver. The new method shall increase the driving comfort.

Abstract: In this method for switching through digital signals (DS) of the synchronous digital hierarchy (SDH) or of the plesiochronous digital hierarchy (PDH), the digital signals are inserted into cross-connect base pulse frames (PR1). Said pulse frame comprises 9 lines (Z) and 100 columns (S). The through-connect data words transmitted each comprise 9 bits and are composed of 8 bits of meaningful information and one bit of additional information. Higher-order pulse frames (PRN) can be formed by interlacing a plurality of cross-connect base pulse frames (PR1).