METHOD FOR TRACTION CONTROL IN A MOTOR VEHICLE, AND CONTROL SYSTEM FOR CARRYING OUT THE METHOD

摘要

A motor vehicle has a drive unit with at least one electric machine (14, 15) and a control system for traction control. The control system has an ESP control unit (18) that determines a setpoint slip in a manner dependent on the driving situation for each driven axle (10, 11) or each driven wheel (12, 13), and controls the drive unit in a manner dependent on the setpoint slip. The ESP control unit (18) determines a motor setpoint rotational speed for the respective electric machine (14, 15) in a manner dependent on the setpoint slip. An electronic power system (21, 22) of the respective electric machine (14, 15) controls operation of the respective electric machine (14, 15) based on the respective motor setpoint rotational speed.

主权项

1. A method for drive traction control in a motor vehicle in a traction mode and/or for motor overrun control in an overrun mode, the motor vehicle having a drive unit with at least one electric machine, a setpoint slip being determined in a manner that is dependent on the driving situation for each driven axle of the motor vehicle or for each driven wheel of the motor vehicle, and the operation of the drive unit being controlled in a manner that is dependent on a setpoint slip, which is dependent on the driving situation, the method comprising determining a motor setpoint rotational speed for the respective electric machine of the drive unit in a manner that is dependent on the setpoint slip, which is dependent on a driving situation for each axle driven by the electric machine of the drive unit or for each wheel driven by an electric machine of the drive unit, and controlling operation of the respective electric machine of the drive unit on the basis of the respective motor setpoint rotational speed.