A control method for a motor-driven vehicle is provided. The method includes calculating a correction torque of a drive motor through a difference between speeds of wheels or a variance rate of the difference between speeds of the wheels and comparing a calculated correction torque with a current required torque of the drive motor. When the calculated correction torque is greater than the current required torque, the drive motor is operated based on the current required torque. When the calculated correction torque is less than or equal to the current required torque, the drive motor is operated based on the calculated correction torque, or the required torque of the drive motor is corrected to correspond to the calculated correction torque and the drive motor is operated based on a corrected required torque of the drive motor.

A system control a vehicle using a friction function describing a friction between a type of surface of the road and a tire of the vehicle as a function of a slip of a wheel of the vehicle. The parameters of each friction function include an initial slope of the friction function defining a stiffness of the tire and one or combination of a peak friction, a shape factor and a curvature factor of the friction function. Upon estimating a slip and a stiffness of the tire, the system selects from the memory parameters of the friction function corresponding to the current stiffness of the tire, determines a control command using a value of the friction corresponding to the slip of the tire according to the friction function defined by the selected parameters, and submits the control command to an actuator of the vehicle.

A device for wheel slip control on a motor vehicle having at least one front axle and at least one rear axle is specified, wherein the front axle is assigned at least one front actuator for influencing at least one linear front wheel speed, and the rear axle is assigned at least one rear actuator for influencing at least one linear rear wheel speed. The device comprises at least one interface, which is designed to receive the following parameters: at least one first parameter indicating the at least one linear front wheel speed; at least one second parameter indicating the at least one linear rear wheel speed; and at least one third parameter indicating a vehicle speed, wherein the at least one third parameter is different from the at least one first parameter and the at least one second parameter.

A control method is performed in a motor grader, the motor grader including a blade between a front wheel and a rear wheel, the blade being attached to a swing circle which adjusts a blade angle. The control method includes detecting a load applied to the blade and revolving, when the detected load is larger in value than a predetermined reference value, the swing circle in such a direction that the blade angle is smaller than the blade angle at the time of detection of that value.

A control method is performed in a motor grader, the motor grader including a blade between a front wheel and a rear wheel, the blade being attached to a swing circle which adjusts a blade angle. The control method includes detecting a load applied to the blade and revolving, when the detected load is larger in value than a predetermined reference value, the swing circle in such a direction that the blade angle is smaller than the blade angle at the time of detection of that value.

A speed control system operable to control a motor vehicle to operate in accordance with a set-speed value, the control means being operable to allow a user to adjust the set-speed value by user actuation of a vehicle brake control or a vehicle accelerator control.

A speed control system operable to control a motor vehicle to operate in accordance with a set-speed value, the control means being operable to allow a user to adjust the set-speed value by user actuation of a vehicle brake control or a vehicle accelerator control.

A method for adjusting the position of a steered wheel of a vehicle includes detecting a steering position value of a steering control device of a vehicle such that the steering position value corresponds to an angular position of the steering control device; calculating a traction speed breakpoint at or above which steering desensitization may occur; and defining a maximum commencement steer angle at or below which steering desensitization may commence. The method also includes determining if the angular position of the steering control device or an angular position of the steered wheel is equal to or less than the maximum commencement steer angle; detecting a traction speed of one of a traction motor or a traction wheel of the vehicle; determining if the traction speed is equal to or above the traction speed breakpoint; and calculating, by the processor, a steering desensitization value when the angular position of one of the steering control device or the steered wheel is equal to or less than the maximum commencement steer angle and the traction speed is equal to or above the traction speed breakpoint.

An apparatus for controlling stability of a vehicle may include a controller configured to determine whether the vehicle skids or not during linear driving at a predetermined speed or more, and when skidding is determined to occur, to perform a counter steering operation to drive a steering motor in a direction to offset the skidding.

An apparatus for controlling stability of a vehicle may include a controller configured to determine whether the vehicle skids or not during linear driving at a predetermined speed or more, and when skidding is determined to occur, to perform a counter steering operation to drive a steering motor in a direction to offset the skidding.