An electronic control unit permits a shift operation to a neutral position, by which a manual transmission 14 is switched to neutral, during coasting control. Accordingly, shifting to the neutral position can be performed only by the shift operation. Thus, power transmission can be blocked after termination of the coasting control. In addition, the electronic control unit prohibits the shift operation to a particular gear after the transmission is switched to neutral. Thus, overreving or underreving at the termination of the coasting control can be suppressed.

In an automatic transmission, the control part controls the engaging mechanisms and recognizes the rotational speed of a drive source and a stop request for the drive source. The automatic transmission changes the rotational speed of the input member to transmission gear ratios by the planetary gear mechanism and the engaging mechanisms so as to freely output the rotation from the output member. The engaging mechanisms include a switching mechanism switchable between a fixed state and a reverse rotation preventing state in which a normal rotation of a corresponding element among the elements of the planetary gear mechanism is allowed and a reverse rotation thereof is prevented. The control part switches the switching mechanism in a state in which the stop request for the drive source is not recognized and the rotational speed of the drive source is equal to or greater than a predetermined value.

A control device supplies electric power to a shift-by-wire system to a sub power supply until starting of an engine by automatic start control is completed after the engine has been stopped by automatic stop control. The control device performs a stopped range switching process in response to outputting of a signal for requiring switching of a shift range from a selection device when electric power is supplied from the sub power supply to the shift-by-wire system. In the stopped range switching process, the shift range is switched to a selected shift range when a voltage of the sub power supply is equal to or greater than a threshold value. On the other hand, the shift range is switched to a neutral range when the voltage of the sub power supply is less than the threshold value.

A control device supplies electric power to a shift-by-wire system to a sub power supply until starting of an engine by automatic start control is completed after the engine has been stopped by automatic stop control. The control device performs a stopped range switching process in response to outputting of a signal for requiring switching of a shift range from a selection device when electric power is supplied from the sub power supply to the shift-by-wire system. In the stopped range switching process, the shift range is switched to a selected shift range when a voltage of the sub power supply is equal to or greater than a threshold value. On the other hand, the shift range is switched to a neutral range when the voltage of the sub power supply is less than the threshold value.

A controlling apparatus for an electric shift-by-wire system is disclosed. The apparatus includes a shift stage sensor detecting information on a target shift stage according to the operation of the shift lever; a position sensor detecting information on a position of the motor; and a controller configured to receive the detected information from the shift stage sensor and the position sensor, when the target shift stage is a P stage, determine whether the P stage is likely to be released using the position information of the motor, and when it is determined that the P stage is likely to be released, limit rotation of the motor.

An engine transmission is provided with an interference member that is configured to interfere with one of a low-gear clutch sleeve and a high-gear clutch sleeve so that when one of the low-gear clutch sleeve and the high-gear clutch sleeve is at an engagement position, the other one of the low-gear clutch sleeve and the high-gear clutch sleeve cannot move to an engagement position.

An engine transmission is provided with an interference member that is configured to interfere with one of a low-gear clutch sleeve and a high-gear clutch sleeve so that when one of the low-gear clutch sleeve and the high-gear clutch sleeve is at an engagement position, the other one of the low-gear clutch sleeve and the high-gear clutch sleeve cannot move to an engagement position.

A shift operation determination apparatus includes: an operation member rotatably attached to the vehicle; an operation detection section configured to detect a position of the operation member; a lock mechanism configured to regulate a rotation of the operation member; a braking operation detection section configured to detect a braking operation of the vehicle; a shift determination section configured to determine any one of a plurality of shift ranges including a first range for parking and a second range different from the first range, based on the position of the operation member; and a lock control section configured to cause the lock mechanism to regulate the rotation of the operation member from a first position corresponding to the first range to a second position corresponding to the second range when the braking operation is not detected.

A shift operation determination apparatus includes: an operation member rotatably attached to the vehicle; an operation detection section configured to detect a position of the operation member; a lock mechanism configured to regulate a rotation of the operation member; a braking operation detection section configured to detect a braking operation of the vehicle; a shift determination section configured to determine any one of a plurality of shift ranges including a first range for parking and a second range different from the first range, based on the position of the operation member; and a lock control section configured to cause the lock mechanism to regulate the rotation of the operation member from a first position corresponding to the first range to a second position corresponding to the second range when the braking operation is not detected.

A shift-by-wire system physically prevents shifting to the R/N/D gear position and shifting to the P gear position from being simultaneously performed. The shift-by-wire system includes a body configured to have a Hall sensor provided therein, a knob installed so as to be rotatable around an axis of the body, a button assembly moving in an axial direction of the body and having a magnet provided to sense rotated and moved states thereof using the Hall sensor and rotate together with the knob, and a concurrent operation limiting unit to mechanically limit movement of the button assembly in a state in which the knob is manipulated so as to be rotated, and to mechanically limit rotation of the knob in a state in which the button assembly is manipulated so as to be moved.