Abstract: A vehicle stabilizing system, for motor vehicles in particular, includes a control unit in which a stabilization control algorithm is stored, a sensor system for detecting present actual values of vehicle state variables, and at least one actuator for implementing a stabilizing intervention when an unstable situation is detected. In order to be able to adapt the vehicle stabilizing system to different types of surfaces, a device is provided which supplies the control unit with information concerning the nature of the surface and at least one controller variable of the stabilization control algorithm is changed as a function of the supplied surface information.

Abstract: A device for traction regulation of the driven wheels of a motor vehicle, including an integration regulator, which produces a control variable for an actuator as a function of a regulation deviation. The traction of the vehicle may be improved significantly, when driving off-road in particular, if the traction regulator includes a pilot control unit, which produces a pilot control value, supplied to the integration regulator as the starting value of the regulation, as a function of roadway surface foundation information.

Abstract: A vehicle stabilizing system, for motor vehicles in particular, includes a control unit in which a stabilization control algorithm is stored, a sensor system for detecting present actual values of vehicle state variables, and at least one actuator for implementing a stabilizing intervention when an unstable situation is detected. In order to be able to adapt the vehicle stabilizing system to different types of surfaces, a device is provided which supplies the control unit with information concerning the nature of the surface and at least one controller variable of the stabilization control algorithm is changed as a function of the supplied surface information.

Abstract: A method and a device for determining a variable describing the speed at least one driven wheel of a motor vehicle. In this context, variables describing the respective wheel speeds for the remaining driven wheels of the motor vehicle, and a variable describing the output rpm of a transmission of the motor vehicle are determined. To be able to make a reliable variable describing the speed magnitude of the wheel available to a traction control system or a vehicle-dynamics control system of a motor vehicle in spite of the failure of a speed sensor arranged at one of the wheels, the variable describing the speed for the at least one driven wheel is determined as a function of the variables describing the respective wheel speeds of the remaining driven wheels and as a function of the variable describing the transmission output rpm.

Abstract: The invention relates to a method and a device for determining a variable describing the speed (VwheelDef)of at least one driven wheel (1, 2, 3, 4) of a motor vehicle. In this context, variables describing the respective wheel speeds (Vwheeli)for the remaining driven wheels of the motor vehicle, and a variable describing the output rpm (noutput) of a transmission (5) of the motor vehicle are determined. To be able to make a reliable variable describing the speed magnitude of the wheel (1, 2, 3, 4) available to a traction control system or a vehicle-dynamics control system of a motor vehicle in spite of the failure of a speed sensor (9, 10, 11, 12) arranged at one of the wheels, it is proposed that the variable describing the speed (VwheelDef) for the at least one driven wheel (1, 2, 3, 4) be determined as a function of the variables which describe the respective wheel speeds (Vwheeli) of the remaining driven wheels and as a function of the variable which describes the transmission output rpm (noutput).

Abstract: A method and a device for the control of a vehicle brake system are described. In this context, the setpoint values for each wheel are corrected based on the difference between brake pressures in at least one wheel brake of two different brake circuits.

Abstract: A method for implementing a differential lock function for a vehicle. The vehicle is an all-wheel drive vehicle, and the differential lock function produces an interaxle lock acting between the front axle and the rear axle of the all-wheel drive vehicle. In response to incipient slippage of at least one driven wheel, the method implements the function of a differential lock, using actions carried out independently of the driver, on at least one arrangement for controlling the wheel torque. In this context, at least one setpoint value for a wheel torque to be set is selected for carrying out the actions executed independently of the driver.

Abstract: The present invention relates to a method and a device for adjusting the output torque or the output speed of an internal combustion engine in order to protect the differentials. The crux and advantage of the present invention lies in calculating and monitoring the rpm differences or the rpm differences in the transverse direction of any vehicle (front-wheel-, rear-wheel-, and four-wheel-drive) as well as the difference in the Cardan speeds that exists in the longitudinal direction in four-wheel drive vehicles. When a specifiable limiting value is exceeded, an automatic reduction in the drive torque or an automatic limiting of the engine speed to a manageable level takes place. This protective function for the differentials cannot be switched off and is available even in the passively activated drive-torque AMR control system. It can only be realized by software using already existing sensors and actuator devices. The application outlay is minimal.

Abstract: A method and a device for determining a quantity describing the brake circuit pressure, with which the brake circuit pressure is determined for a pressure buildup, in particular a pressure buildup independent of the driver, and also for a pressure reduction. In a pressure buildup independent of the driver, the delivery performance of the pump which delivers the brake medium and is detected with sensing means is taken into account in determining the brake circuit pressure. In a pressure reduction, the brake circuit pressure is determined as a function of a quantity which describes the brake circuit pressure to be expected after the pressure reduction.

Abstract: A brake controller is connected downstream of a primary vehicle dynamics computer and has a channel for controlling the yaw velocity at a desired value, and a channel for limiting the sideslip angle. The computer prescribes the desired value and the limit value, and determines which channel is effective on the basis of the driving situation. The two channels generate a control signal which is routed via a control amplifier having a proportional component and a differential component. An actuating signal which is used to input braking pressure at the wheel brakes is formed from the resulting signal components, the instantaneous driving situation being assigned in both cases to one of a plurality of classes, and this assignment being co-used to determine the wheels at which braking pressure is input.

Abstract: The ABS described has phases of regulation to a setpoint slip value and phases of brake pressure control in the case of instabilities of the wheel. The setpoint slip is determined from a fixed maximum friction coefficient .mu.max and the brake pressure introduced is determined from the slip value when .mu.max occurs.

Abstract: The invention is directed to a control system for an internal combustion engine with reference to air throughput, rotational speed and lambda. In this control system, a decoupling device is provided between open loop and closed loop control signals which act with different speeds. An ignition signal is influenced in dependence upon a lambda-dependent signal via at least one dead time member. In this way, phases having unfavorable opposing influence on control branches of different reaction durations are reduced.