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

A control unit for operating a motor vehicle, which has multiple drive wheels and multiple drive machines, each of the drive machines is an electric machine and is allocated to a respective drive wheel of the drive wheels, the control unit configured to:

• acquire a total setpoint drive torque;
• acquire a current vehicle driving speed and a current steering angle;
• determine respective wheel speeds of the drive wheels over a roadway as a function of the current vehicle driving speed, the current steering angle, and a known chassis geometry of the motor vehicle;
• determine a setpoint wheel speed for each of the drive wheels as a function of the determined wheel speeds and the current steering angle in such a way that a radius of an actual curve path is set that is smaller than a radius of a setpoint curve path specified by a maximally possible steering angle in the process of which multiple drive wheels produce slip;
• distribute the total setpoint drive torque to all drive wheels as a function of the wheel loads in order to influence the setpoint speed at the respective drive wheel;
• and
• actuate each of the drive machines in order to adjust the setpoint wheel speed and the respective torque at the respective drive wheel.

A motor vehicle, comprising:

• multiple drive wheels;
• multiple drive machines, each of the drive machines being allocated to a respective drive wheel of the drive wheels, and each of the drive machines being an electric machine;
• and
• a control unit configured to:
• acquire a total setpoint drive torque;
• acquire a current vehicle driving speed and a current steering angle;
• determine respective wheel speeds of the drive wheels over a roadway as a function of the current vehicle driving speed, the current steering angle, and a known chassis geometry of the motor vehicle;
• determine a setpoint wheel speed for each of the drive wheels as a function of the determined wheel speeds and the current steering angle
• in such a way that a radius of an actual curve path is set that is smaller than a radius of a setpoint curve path specified by a maximally possible steering angle, in the process of which multiple drive wheels produce slip;
• distribute the total setpoint drive torque to all drive wheels as a function of the wheel loads in order to influence the setpoint speed at the respective drive wheel;
• and
• actuate each of the drive machines in order to adjust the setpoint wheel speed and the respective torque at the respective drive wheel.