When hydraulic information is not available for use, a lock mechanism control unit of a transmission's rotating shaft operated by hydraulic pressure sets the shift range to a non-running range and sets a parking lock to an unlocked state if a vehicle is in a running state and rotation speed of a drive unit is equal to or higher than a predetermined value, but sets the shift range to a parking range and sets the parking lock to a locked state if the vehicle is in a non-running state or the rotation speed is lower than the predetermined value.
PARKING LOCK CONTROLLER
2020-05-14
Patent
Electronic Resource
English