Downshifting automatic gearbox involves storing downshift command in memory if it cannot be implemented immediately until suitable speed reached for downshift during driving phase with deceleration

摘要

The method involves the driver defining gear selection by inching switch (2,3), storing a driver downshift command in memory (11,21) if it cannot be implemented immediately until the vehicle has reached a suitable speed for carrying out the downshift during a driving phase with deceleration. The electronic gearbox controller (16) continuously detects the current vehicle speed and associates it with a gear (19) in a correlation unit (23).