Controlling a drive system for at least one axle of a motor vehicle

Method for controlling a drive system for at least one axle of a motor vehicle, wherein the drive system has at least one electrical machine as drive unit, a drive shaft which is driven by the drive unit, a first output shaft and also a first clutch which connects the drive shaft to the first output shaft, and a control unit, wherein the method comprises at least the following steps:

• a) determining a desired change in a drive torque which is provided at least by the electrical machine;
• b) checking vibratory excitation to be expected in the event of a change in the drive torque;
• c) calculating an adjustment factor for the change in the drive torque to be introduced;
• d) introducing the drive torque, which is changed by the adjustment factor, starting at least from the drive unit into the drive shaft.

Method for controlling a drive system for at least one axle of a motor vehicle, wherein the drive system has at least one electrical machine as drive unit, a drive shaft which is driven by the drive unit, a first output shaft and a second output shaft and also a first clutch which connects the drive shaft to the first output shaft and a second clutch which connects the drive shaft to the second output shaft, and furthermore a control unit for controlling the drive unit and the clutches, wherein the first output shaft and the second output shaft are arranged on a common axle, wherein the method comprises at least the following steps:

• 1) determining a desired change in a drive torque which is provided at least by the electrical machine;
• 2) checking vibratory excitation which is established owing to the change in the drive torque which has already taken place;
• 3) calculating an opposing vibration for influencing the provided drive torque;
• 4) introducing the opposing vibration;
• wherein a transmission behavior of the two clutches in respect of the splitting and transmission of the drive torque to the output shafts is taken into account.

A motor vehicle, at least having a drive system for at least one axle of the motor vehicle, wherein the drive system has at least one electrical machine as drive unit, a drive shaft which is driven by the drive unit, a first output shaft and also a first clutch which connects the drive shaft to the first output shaft, and furthermore a control unit for controlling the drive unit and at least the first clutch, wherein the control unit is configured to carry out a first method or a second method,

• the first method comprising:
• a) determining a desired change in a drive torque which is provided at least by the electrical machine;
• b) checking vibratory excitation to be expected in the event of a change in the drive torque;
• c) calculating an adjustment factor for the change in the drive torque to be introduced;
• and
• d) introducing the drive torque, which is changed by the adjustment factor, starting at least from the drive unit into the drive shaft;
• the second method comprising:
• 1) determining a desired change in a drive torque which is provided at least by the electrical machine;
• 2) checking vibratory excitation which is established owing to the change in the drive torque which has already taken place;
• 3) calculating an opposing vibration for influencing the provided drive torque;
• 4) introducing the opposing vibration;
• wherein a transmission behavior of the two clutches in respect of the splitting and transmission of the drive torque to the output shafts is taken into account.