A hybrid vehicle includes powertrain components such as an engine, an automatic transmission, and a traction motor selectively coupled to the engine via a clutch and to the transmission. At least one controller is programmed to control these powertrain components. The vehicle is driven over a drive cycle that includes multiple engine starts and transmission gear shifts. An amount of fuel consumption used during these engine starts and transmissions gear shifts is stored on an on-board storage device. Subsequently, the engine is inhibited from starting and the transmission is inhibited from shifting gears based on the amount of fuel consumption associated with the engine starts and transmission gear shifts performed during the drive cycle as recalled from the storage device.

A control device for an automatic transmission includes: a failure diagnosis section for diagnosing whether or not a failure has occurred in a shift control system of the automatic transmission; a fail-safe control section for fixing the automatic transmission into a predetermined gear position in response to confirmation of the failure of the shift control system of the automatic transmission; and an oil temperature rise regulation torque reduction control section for outputting a torque reduction request to suppress torque of a vehicle driving source, based on temperature of transmission operating oil of the automatic transmission, and outputting the torque reduction request in response to satisfaction of an oil temperature condition that is set lower in oil temperature when the automatic transmission is fixed in a first gear position by the fail-safe control section than when the automatic transmission is not fixed in the first gear position.

A control device for an automatic transmission includes: a failure diagnosis section for diagnosing whether or not a failure has occurred in a shift control system of the automatic transmission; a fail-safe control section for fixing the automatic transmission into a predetermined gear position in response to confirmation of the failure of the shift control system of the automatic transmission; and an oil temperature rise regulation torque reduction control section for outputting a torque reduction request to suppress torque of a vehicle driving source, based on temperature of transmission operating oil of the automatic transmission, and outputting the torque reduction request in response to satisfaction of an oil temperature condition that is set lower in oil temperature when the automatic transmission is fixed in a first gear position by the fail-safe control section than when the automatic transmission is not fixed in the first gear position.

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.

The intent to exit a vehicle when a driver attempts to exit a vehicle is detected by an exit intent detection unit, and regardless of whether or not the shift range other than the parking range is detected by a shift range detection unit, a securing control unit controls a vehicle securing unit and secures the vehicle when an intent to secure is detected by a securing intent detection unit. Thus, unintended vehicle movement after exiting is suppressed by securing the vehicle in a stopped state during exiting.

A control device of a continuously variable transmission has at least an automatic shift mode and a temporary manual mode. The control device includes an insufficient drive force determination unit, a first insufficient acceleration determination unit, and a downshift control unit. The insufficient drive force determination unit determines whether drive force insufficiency occurs if acceleration is performed in the current transmission gear. The first insufficient acceleration determination unit determines whether there is an acceleration request made by the driver of the vehicle. The downshift control unit downshifts from the current transmission gear to a transmission gear at a lower speed side in a case where, in the temporary manual mode, the insufficient drive force determination unit determines that a drive force insufficiency occurs and the first acceleration request determination unit determines that there is an acceleration request.

In a control apparatus for a vehicle, when it is not determined that a downshift to a second gear stage should be carried out and an accelerator depression amount change rate is equal to or smaller than a predetermined value when it is determined that a downshift to a first gear stage should be carried out, a single downshift command to the first gear stage is output. When it is not determined that the downshift to the second gear stage should be carried out and the accelerator depression amount change rate is larger than the predetermined value when it is determined that the downshift to the first gear stage should be carried out, a current gear stage is maintained. Therefore, a skip downshift to the second gear stage can be carried out when it is determined that the downshift to the second gear stage should be carried out.

The apparatus suppresses manual shifting options in an electronically controlled automatic transmission with a manual mode in the active transportation mode of a motor vehicle by appropriate programming of an electronic transmission control unit. The transmission can be operated only in the automatic mode. Preferably, only the forward gears can be selected in this case, the weakest shift element, in particular the weakest brake or clutch in an automatic transmission, always being closed in the forward gears.

The apparatus suppresses manual shifting options in an electronically controlled automatic transmission with a manual mode in the active transportation mode of a motor vehicle by appropriate programming of an electronic transmission control unit. The transmission can be operated only in the automatic mode. Preferably, only the forward gears can be selected in this case, the weakest shift element, in particular the weakest brake or clutch in an automatic transmission, always being closed in the forward gears.

A seat belt attachment determining unit of a rough terrain vehicle determines whether or not a seat belt is being worn by a vehicle occupant. In the case it is determined by the seat belt attachment determining unit that the vehicle occupant is wearing the seat belt, the ECU switches a transmission gear stage of an automatic transmission using a first speed change mode. On the other hand, in the case it is determined by the seat belt attachment determining unit that the vehicle occupant is not wearing the seat belt, the ECU switches the transmission gear stage using a second speed change mode.