Shift Control System

SHIFT CONTROL
^ A shift position sensor is provided in the transaxle to detect the shift position and sends a corresponding signal to the HV ECU. Upon receiving this signal, the HV ECU optimally combines the operation of the engine, MG1 and MG2 in order to produce the respective shift positions ("P", "R", "N", "D" and "B").
^ However, because the movement of the wheels must be mechanically locked in the P position, a parking lock mechanism is used in the transaxle. Therefore, if the driver operates the shift lever to the P position, a cable and a linkage cause the movement of the transaxle to lock mechanically.





PARKING LOCK MECHANISM
^ A mechanical parking lock mechanism has been provided in the compound gear. The engagement of the parking lock pawl with the parking gear that is integrated with the compound gear locks the movement of the vehicle.
^ When the driver moves the shift lever to the P position, the cable at the shift lever causes the No.1 lever to rotate. The rotational movement of the No.1 lever causes the parking lock rod to slide and the parking lock pawl to push up. As a result, the parking lock pawl locks the parking gear.