Control method for automatic clutch in case of coastint

摘要

The clutch remains open as long as the vehicle is in the "no tractive drive" state. It closes as soon as the vehicle is no longer in the "no tractive drive" state. The "no tractive drive" state is recognised when the speed of a drive engine increases despite a non-disengaged accelerator pedal. The "no tractive drive state" is also recognised when on a gear input shaft a negative acceleration is detected, also when on at least one wheel of the vehicle a negative acceleration is detected. It is also recognised when an operation of a brake pedal is detected. It is then only determined when a movement of the vehicle is detected.