A control apparatus of a transmission includes a hydraulic pressure circuit, an abnormality detector, and a controller. The transmission performs shifting operation of the transmission. The controller controls the shifting operation by controlling, as a first control operation, a control pressure adjusting value to allow a line pressure and a control pressure to have a correlation with each other and by using, as a value of the line pressure, a value calculated on a basis of a detected value of the control pressure. The controller controls the shifting operation by controlling, as a second control operation, the control pressure adjusting valve to allow the line pressure and the control pressure to have a correlation with each other and by using, as a value of the control pressure, a value calculated on a basis of a detected value of the line pressure.

A control apparatus of a transmission includes a hydraulic pressure circuit, an abnormality detector, and a controller. The transmission performs shifting operation of the transmission. The controller controls the shifting operation by controlling, as a first control operation, a control pressure adjusting value to allow a line pressure and a control pressure to have a correlation with each other and by using, as a value of the line pressure, a value calculated on a basis of a detected value of the control pressure. The controller controls the shifting operation by controlling, as a second control operation, the control pressure adjusting valve to allow the line pressure and the control pressure to have a correlation with each other and by using, as a value of the control pressure, a value calculated on a basis of a detected value of the line pressure.

Torque is transmitted from an electric motor to an output unit through different gear trains depending on direction of rotation of the electric motor. The drive unit includes an electric motor, a first gear train, a second gear train, a third gear train, and a moving mechanism. The first gear train includes a first drive gear, a first driven gear, and a clutch member. The clutch member moves inside the first driven gear and receives torque transmitted from the first driven gear. The second gear train transmits to an output unit the torque transmitted from the first gear train. The third gear train transmits to the output unit the torque transmitted from the first gear train. The moving mechanism axially moves the clutch member toward the second drive gear when the electric motor is forwardly rotated and toward the third drive gear when the electric motor is reversely rotated.

Torque is transmitted from an electric motor to an output unit through different gear trains depending on direction of rotation of the electric motor. The drive unit includes an electric motor, a first gear train, a second gear train, a third gear train, and a moving mechanism. The first gear train includes a first drive gear, a first driven gear, and a clutch member. The clutch member moves inside the first driven gear and receives torque transmitted from the first driven gear. The second gear train transmits to an output unit the torque transmitted from the first gear train. The third gear train transmits to the output unit the torque transmitted from the first gear train. The moving mechanism axially moves the clutch member toward the second drive gear when the electric motor is forwardly rotated and toward the third drive gear when the electric motor is reversely rotated.

A shift-by-wire actuator and a method for selecting drive positions of a motor vehicle transmission is provided. The actuator comprises an actuating field, in which a scrolling surface for selecting one of the drive positions, and a release button, which transmits a release signal based on an actuation, are disposed. The actuator is characterized in that the scrolling surface and the release button are coupled via a locking and releasing mechanism, such that a shift-effecting selection of at least one of the drive positions can be executed by manipulation of the scrolling surface after release by the locking and releasing mechanism, based on the release signal.

A selector for an automatically operated gearbox is provided and includes: a casing; a control member mounted within the casing in an oscillating manner around a first axis of rotation, the control member being movable through a plurality of operative positions associated to respective operating conditions of the gearbox; a prevention device of the selection of an undesired operative position of the selector, wherein the prevention device includes a rocker mounted within the casing in a rotatable manner around a second axis of rotation; the rocker being operable in rotation around the second axis of rotation by an actuator member between a resting position and a working position in which it is configured to inhibit the selection of the undesired operative position. The prevention device is configured for enabling, in certain conditions, selection of the undesired operative position even when it is currently inhibited.

A selector for an automatically operated gearbox is provided and includes: a casing; a control member mounted within the casing in an oscillating manner around a first axis of rotation, the control member being movable through a plurality of operative positions associated to respective operating conditions of the gearbox; a prevention device of the selection of an undesired operative position of the selector, wherein the prevention device includes a rocker mounted within the casing in a rotatable manner around a second axis of rotation; the rocker being operable in rotation around the second axis of rotation by an actuator member between a resting position and a working position in which it is configured to inhibit the selection of the undesired operative position. The prevention device is configured for enabling, in certain conditions, selection of the undesired operative position even when it is currently inhibited.

At least some implementations of a transmission gear shifter include a shifter for a vehicle transmission that includes a first shift member, a retainer, an actuator and a second shift member. The first shift member has a body rotatable about an axis among multiple positions, and the retainer is movable relative to the body between a first position in which the retainer prevents movement of the body and a second position in which the retainer permits movement of the body. The actuator is coupled to the retainer to drive the retainer between the first position and second position. The second shift member is coupled to the retainer for movement with the retainer relative to the body, and arranged to selectively engage and rotate the body.

At least some implementations of a transmission gear shifter include a shifter for a vehicle transmission that includes a first shift member, a retainer, an actuator and a second shift member. The first shift member has a body rotatable about an axis among multiple positions, and the retainer is movable relative to the body between a first position in which the retainer prevents movement of the body and a second position in which the retainer permits movement of the body. The actuator is coupled to the retainer to drive the retainer between the first position and second position. The second shift member is coupled to the retainer for movement with the retainer relative to the body, and arranged to selectively engage and rotate the body.

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.