CONTROL UNIT FOR AUTOMATIC TRANSMISSION

摘要

A control unit for a vehicle automatic transmission is small sized and can be produced at low cost. The control unit has an actuator (20) for switching between drive ranges of the transmission (6), a shift-by-wire control circuit (53) for controlling the actuator (20) based on a range selected by a driver, and an automatic transmission control circuit (56) for controlling various kinds of valves of a hydraulic control device of the automatic transmission (6). The elements described above are received in one case (10, 11, 12) and mounted on the automatic transmission (6).