Method for operating a motor vehicle, control unit, motor vehicle

A control unit for a motor vehicle, the motor vehicle including a drive system including an electric drive machine, a friction braking system, and an actuating element, the actuating element being continuously movable between a first end state and a second end state, a position of the actuating element in the first end state corresponding to a percentage value of 0%, and the position of the actuating element in the second end state corresponding to a percentage value of 100%, wherein the control unit is configured to operate the motor vehicle, the control unit being configured to:

• predefine an acceleration torque for the motor vehicle when the position of the actuating element has a percentage value that is greater than a predefined threshold value;
• predefine a deceleration torque for the motor vehicle when the position of the actuating element has a percentage value that is less than the threshold value;
• and
• activate the friction braking system in such a way that the friction braking system generates, at least partially, the predefined deceleration torque, wherein:
• a relative speed of the motor vehicle to ground is detected, and the predefined deceleration torque is changed as a function of the detected relative speed,
• the predefined deceleration torque is reduced with a reduction of the relative speed,
• a first threshold speed is predefined, the predefined deceleration torque being reduced only when the detected relative speed is less than the first threshold speed, and
• a second threshold speed is predefined, which is greater than the first threshold speed, the predefined deceleration torque being increased with the reduction of the relative speed when a relative speed is detected, which is greater than the first threshold speed and less than the second threshold speed.

A motor vehicle, comprising:

• a drive system which includes an electric drive machine, a friction braking system, and an actuating element, the actuating element being continuously movable between a first end state and a second end state, a position of the actuating element in the first end state corresponding to a percentage value of 0%, and the position of the actuating element in the second end state corresponding to a percentage value of 100%;
• and
• a control unit configured to operate the motor vehicle, the control unit being configured to:
• predefine an acceleration torque for the motor vehicle when the position of the actuating element has a percentage value that is greater than a predefined threshold value,
• predefine a deceleration torque for the motor vehicle when the position of the actuating element has a percentage value that is less than the threshold value, and
• activate the friction braking system in such a way that the friction braking system generates, at least partially, the predefined deceleration torque, wherein:
• a relative speed of the motor vehicle to ground is detected, and the predefined deceleration torque is changed as a function of the detected relative speed,
• the predefined deceleration torque is reduced with a reduction of the relative speed,
• a first threshold speed is predefined, the predefined deceleration torque being reduced only when the detected relative speed is less than the first threshold speed, and
• a second threshold speed is predefined, which is greater than the first threshold speed, the predefined deceleration torque being increased with the reduction of the relative speed when a relative speed is detected, which is greater than the first threshold speed and less than the second threshold speed.