An ECU has a temperature detection unit that detects an actual temperature of the ECU, a temperature estimation unit that calculates an estimated temperature of the ECU, an abnormality determination unit for determining a presence or absence of a sign of abnormality, and a switching prohibition unit that prohibits the shift range switching in a predetermined case. The switching prohibition unit prohibits the shift range switching when there is no sign of abnormality in the temperature detection unit and the actual temperature is equal to or higher than a switching prohibition threshold, and prohibits the shift range switching when there is a sign of abnormality in the temperature detection unit and the estimated temperature is equal to or higher than a switching prohibition threshold. The temperature estimation unit calculates the estimated temperature based on a latest actual temperature in a normal period.

A controller includes a control unit configured to perform stepwise shift that upshifts a CVT in a stepped manner to accelerate a vehicle. The control unit performs a downshift control configured to downshift the continuously variable transmission in a case in which an accelerator pedal is continuously stepped on from before prohibition of the stepwise shift to after prohibition of the stepwise shift.

A controller includes a control unit configured to perform stepwise shift that upshifts a CVT in a stepped manner to accelerate a vehicle. The control unit performs a downshift control configured to downshift the continuously variable transmission in a case in which an accelerator pedal is continuously stepped on from before prohibition of the stepwise shift to after prohibition of the stepwise shift.

A method for operating a transmission (2) of a motor vehicle includes, in order to trigger a gear shift in the transmission (2), determining a trigger speed depending on a response time of the gear shift to be implemented, depending on a gradient of a motor vehicle-side rotational speed, and depending on a maximum permissible limit speed for the motor vehicle-side rotational speed. The gear shift to be implemented triggered on a control side as function of the trigger speed such that the motor vehicle-side rotational speed does not exceed the maximum permissible limit speed during the implementation of the gear shift. The method also include adapting the trigger speed.

A method for operating a transmission (2) of a motor vehicle includes, in order to trigger a gear shift in the transmission (2), determining a trigger speed depending on a response time of the gear shift to be implemented, depending on a gradient of a motor vehicle-side rotational speed, and depending on a maximum permissible limit speed for the motor vehicle-side rotational speed. The gear shift to be implemented triggered on a control side as function of the trigger speed such that the motor vehicle-side rotational speed does not exceed the maximum permissible limit speed during the implementation of the gear shift. The method also include adapting the trigger speed.

The control method for a constant speed running of a vehicle performs a vehicle speed control for downshifting the gear position of the automatic transmission when the acceleration/deceleration of the vehicle is larger than the determination value during the constant speed running control. In the control method, the automatic transmission includes a plurality of gear positions that can be downshifted during the constant speed running control, and among the plurality of gear positions, the determination value between the gear positions having a relatively large difference in the gear ratio between the gear positions is set to be larger than the determination value between the gear positions having a relatively small difference in the gear ratio between the gear positions.

A vehicle comprises an autonomous driving system and a vehicle platform that controls the vehicle in response to a command received from the autonomous driving system. In the vehicle, when a first signal indicates an autonomous mode, the vehicle platform performs a shift change requested through a first command only while the second signal indicates a standstill.

An ECU has a temperature detection unit that detects an actual temperature of the ECU, a temperature estimation unit that calculates an estimated temperature of the ECU, an abnormality determination unit for determining a presence or absence of a sign of abnormality, and a switching prohibition unit that prohibits the shift range switching in a predetermined case. The switching prohibition unit prohibits the shift range switching when there is no sign of abnormality in the temperature detection unit and the actual temperature is equal to or higher than a switching prohibition threshold, and prohibits the shift range switching when there is a sign of abnormality in the temperature detection unit and the estimated temperature is equal to or higher than a switching prohibition threshold. The temperature estimation unit calculates the estimated temperature based on a latest actual temperature in a normal period.

A shift operation determination apparatus includes: an operation member rotatably attached to the vehicle; a position detection section configured to detect a position of the operation member in a rotation direction; a shift determination section configured to determine, based on the position of the operation member, a shift range selected by the operation member; and a regulation section configured to regulate a rotation of the operation member, the regulation section being configured to regulate the rotation of the operation member when the operation member moves to a second position corresponding to the second range from a first position corresponding to the first range or a third position corresponding to the third range and moves to the third position within a predetermined time after being located at the second position.

A shift operation determination apparatus includes: an operation member rotatably attached to the vehicle; a position detection section configured to detect a position of the operation member in a rotation direction; a shift determination section configured to determine, based on the position of the operation member, a shift range selected by the operation member; and a regulation section configured to regulate a rotation of the operation member, the regulation section being configured to regulate the rotation of the operation member when the operation member moves to a second position corresponding to the second range from a first position corresponding to the first range or a third position corresponding to the third range and moves to the third position within a predetermined time after being located at the second position.