A vehicle includes an engine, a torque converter, a transmission, and a control device. The torque converter is coupled to the engine. The transmission is coupled to the torque converter. The control device is configured to control operation of the transmission. The control device includes a controller configured to perform shift hold control to prevent upshift of the transmission based on a lateral acceleration value of the vehicle. The controller is configured to permit the upshift of the transmission by only one gear shift stage in a case where a predetermined condition is met in the shift hold control. The predetermined condition includes a condition that an index value indicating a rotation speed of an output shaft of the torque converter be higher than a first threshold value.

Disclosed are a method and device for controlling the state switching of a fluid torque converter, a vehicle and a storage medium, the method including: obtaining a target instruction when the torque converter of the vehicle is in a locked state, the target instruction triggering a change in the torque transmission direction of a transmission system of the vehicle; obtaining a state parameter, and determining whether the current vehicle is in a target operating condition according to the state parameter; and if the current vehicle is in the target operating condition, switching the fluid torque converter to an open state, and switching the torque converter back to the locked state after maintaining the open state for a preset period of time.

A vehicle includes an engine, a torque converter, a transmission, and a control device. The torque converter is coupled to the engine. The transmission is coupled to the torque converter. The control device is configured to control operation of the transmission. The control device includes a controller configured to perform shift hold control to prevent upshift of the transmission based on a lateral acceleration value of the vehicle. The controller is configured to permit the upshift of the transmission by only one gear shift stage in a case where a predetermined condition is met in the shift hold control. The predetermined condition includes a condition that an index value indicating a rotation speed of an output shaft of the torque converter be higher than a first threshold value.

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.

A shift control device to be applied to a vehicle provided with an automatic transmission includes a detector and a shift mode control processor. The detector detects that the vehicle has passed through a tollgate through which the vehicle is able to pass without stopping. The shift mode control processor switches a shift mode of the vehicle from a first shift mode to a second shift mode the shift mode of the vehicle upon passing through the tollgate is the first shift mode and a predetermined condition regarding one or both of a speed of the vehicle and an accelerator opening degree of the vehicle is satisfied after the vehicle passes through the tollgate. In the first shift mode, a shift operation is performable by a driver, and in the second shift mode, a shift operation is performable by the automatic transmission.

A vehicle control system to improve acceleration response and shift feel by executing a power-on downshifting in a suitable manner. An evaluation of a skip shifting and an evaluation of a stepwise shifting are compared to each other when executing the downshifting, based on an evaluation index calculated in advance in accordance with an operating condition of an accelerator. The downshifting operation to be executed is selected from the stepwise shifting and the skip shifting whose evaluation is higher than the other one.

A shifting control apparatus includes an overall-speed-position shifting control portion including: a synchronous shifting control portion to implement a synchronous control of shifting actions of the vehicular automatic transmission and the step-variable transmission portion to respective target ones of the overall speed positions and the gear positions, such that a moment of generation of a command to establish the target overall speed position is delayed with respect to a moment of generation of a command to establish the target gear position, so that the shifting actions take place in synchronization with each other, irrespective of different control response times of the shifting actions; and a multiple-step shifting control portion to command the synchronous shifting control portion such that the vehicular automatic transmission performs a shift-up action from a present one of the overall speed position to the target overall speed position through at least one intermediate overall speed position intermediate.

A control apparatus includes a switching control unit that switches a traveling mode of a vehicle from an automated driving mode to a manual driving mode if an automated drive canceling request to cancel the automated driving mode to switch to the manual driving mode is submitted while the vehicle is traveling in the automated driving mode. The switching control unit performs transmission gear setting control in which a transmission gear of an automatic transmission is set to a highest transmission gear among transmission gears within a range of a predetermined allowable driving force in the switching from the automated driving mode to the manual driving mode.

A vehicle control device includes a user-depressible portion that in some examples takes the form of a third foot pedal. The user-depressible portion may be depressed to varying degrees and then released to varying degrees. The degree and type of pedal movement is analyzed to determine one of a predetermined plurality of vehicle control functions that the drives wishes to perform.