A vehicle launch control system for a vehicle (10) comprising an input for receiving an indication signal to indicate that vehicle launch is imminent; a sensor system (12, 22) configured to determine a terrain characteristic of the terrain in the path of the vehicle if the indication signal is received; and a processing module (33) configured to determine whether the terrain characteristic is likely to result in an unwanted level of wheel slip if the vehicle is launched, wherein the processing module (33) is further configured to provide an output to indicate that an unwanted level of wheel slip will occur based on the outcome of the determination.

A vehicle launch control system for a vehicle (10) comprising an input for receiving an indication signal to indicate that vehicle launch is imminent; a sensor system (12, 22) configured to determine a terrain characteristic of the terrain in the path of the vehicle if the indication signal is received; and a processing module (33) configured to determine whether the terrain characteristic is likely to result in an unwanted level of wheel slip if the vehicle is launched, wherein the processing module (33) is further configured to provide an output to indicate that an unwanted level of wheel slip will occur based on the outcome of the determination.

A method for operating a motor vehicle which includes at least one wheel axle having two drive wheels, each drive wheel being drivable with the aid of a wheel-specific drive unit for the purpose of moving the motor vehicle on a roadway. It is provided that the drive units of the wheel axle are controlled as a function of a difference between the longitudinal forces applicable at the drive wheels of the wheel axle to the roadway.

A drive system for an axle of a motor vehicle comprises at least one drive unit, a drive shaft driven by the drive unit, a first output shaft comprising a first wheel and a second output shaft comprising a second wheel, and a first clutch connecting the drive shaft to the first output shaft, and a second clutch connecting the drive shaft to the second output shaft, and furthermore, a control unit for regulating the clutches. In a stable first driving condition, the clutches are regulated such that a total locking power of the two clutches corresponds at least or substantially to a drive torque generated by the drive shaft; wherein a method comprises at least the following steps: a) determining an unstable second driving condition in which at least one first wheel has a first slip or a second wheel has a second slip; and b) modifying at least one locking ratio of the clutch connected to the at least one slipping wheel, wherein the first clutch has an adjustable first locking ratio and the second clutch has an adjustable second locking ratio.

The vehicle control apparatus is provided with a vehicle body speed deriving portion that derives a vehicle body speed of a vehicle, a wheel speed difference deriving portion that derives a wheel speed difference which is a deviation between the maximum wheel speed and the minimum wheel speed of the wheels of the vehicle, a request drive amount deriving portion that derives a request drive amount for the drive source of the vehicle, a torque suppressing device that suppresses torque of a driving wheel, a traction control portion that controls the torque suppressing device and suppresses an acceleration slip of the driving wheel based on the wheel speed difference or a combination of the wheel speed difference and at least one of the vehicle body speed and the request drive amount.

The vehicle control apparatus is provided with a vehicle body speed deriving portion that derives a vehicle body speed of a vehicle, a wheel speed difference deriving portion that derives a wheel speed difference which is a deviation between the maximum wheel speed and the minimum wheel speed of the wheels of the vehicle, a request drive amount deriving portion that derives a request drive amount for the drive source of the vehicle, a torque suppressing device that suppresses torque of a driving wheel, a traction control portion that controls the torque suppressing device and suppresses an acceleration slip of the driving wheel based on the wheel speed difference or a combination of the wheel speed difference and at least one of the vehicle body speed and the request drive amount.

A method, system, and machine for controlling the output of an engine of a machine includes calculating the difference between a measured track slip based on track speed and ground speed and a calculated target track slip depending on track speed and chassis pitch, inputting the difference into a controller to determine a propulsion engine torque limit, and limiting the engine toque to the propulsion engine torque limit plus a steering system input torque.

A method, system, and machine for controlling the output of an engine of a machine includes calculating the difference between a measured track slip based on track speed and ground speed and a calculated target track slip depending on track speed and chassis pitch, inputting the difference into a controller to determine a propulsion engine torque limit, and limiting the engine toque to the propulsion engine torque limit plus a steering system input torque.

A vehicle dynamics control system in a motor vehicle includes an electronic vehicle dynamics control unit which is connected to at least one drive control unit and is configured so as to: determine at least one setpoint slip or a setpoint slip corridor and an actual vehicle speed as a reference speed, and transmit the at least one setpoint slip or the setpoint slip corridor together with the reference speed to the at least one drive control unit. The drive control unit, in accordance with the transmitted values and by way of a function module, determines setpoint rotational speed values at a motor level and carries out a rotational speed control process.

A vehicle dynamics control system in a motor vehicle includes an electronic vehicle dynamics control unit which is connected to at least one drive control unit and is configured so as to: determine at least one setpoint slip or a setpoint slip corridor and an actual vehicle speed as a reference speed, and transmit the at least one setpoint slip or the setpoint slip corridor together with the reference speed to the at least one drive control unit. The drive control unit, in accordance with the transmitted values and by way of a function module, determines setpoint rotational speed values at a motor level and carries out a rotational speed control process.