MSR: Engine drag torque control

The engine drag torque control (MSR) prevents the blocking tendency of the drive gear on smooth roadways. On downshifting or in the case of an abrupt load reversal (especially on a roadway with a low coefficient of friction), there is a danger that the drive gears block due to the engine drag torque. Via the wheel speed sensors, MSR detects the blocking tendency even as it is about to happen. MSR briefly reduces the engine drag torque by accelerating slightly. Advantage: The drive wheels retain their lateral stability in overrun mode.