Control device for vehicle and control method for vehicle
AssigneesJATCO Ltd, Nissan Motor Co., Ltd.
InventorsSeiya Kitagawa, Tomoaki Honma
Life of this patent
Estimating the term…
Abstract
A vehicle includes a transmission having a variator and a sub-transmission mechanism, a controller serving as a shift control unit adapted to, as shift of the transmission, shift the sub-transmission mechanism and the variator so that a through speed ratio becomes a target speed ratio, and an engine serving as a torque increasing portion adapted to increase a torque inputted to the transmission in association with the shift of the transmission. The controller has a torque setting unit adapted to make a magnitude of an inclination larger as an increase amount of the engine rotation speed in association with the shift of the transmission is larger.
Claims7
A control device for a vehicle including at least one controller, the control device being adapted to perform control in the vehicle having:
- a transmission having a variator and a stepped automatic transmission mechanism which are arranged in series with respect to each other in a power transmission route connecting a travel drive source and a drive wheel;
- the at least one controller adapted to, as a shift of the transmission, control the transmission to shift the stepped automatic transmission mechanism and the variator so that a speed ratio of the transmission becomes a target speed ratio;
- and
- a torque increasing portion adapted to increase torque inputted to the transmission in association with the shift of the transmission, the torque increasing portion corresponding to the travel drive source or another drive source, wherein
- the at least one controller is adapted to make an increase degree of the torque inputted to the transmission larger as an increase amount of rotation speed of the torque increasing portion in association with the shift of the transmission is larger, the at least one controller making the increase degree of the torque inputted to the transmission larger as a deviation amount between a reached speed ratio of the transmission and the target speed ratio is larger, the reached speed ratio being set in accordance with vehicle speed and an accelerator pedal opening and the target speed ratio serving as the reached speed ratio after filtering processing.
A control method for a vehicle having:
- a transmission having a variator and a stepped automatic transmission mechanism which are arranged in series with respect to each other in a power transmission route connecting a travel drive source and a drive wheel;
- and
- a torque increasing portion adapted to increase torque inputted to the transmission in association with a shift of the transmission, the torque increasing portion corresponding to the travel drive source or another drive source,
- the control method for the vehicle in a case where, as the shift of the transmission, the stepped automatic transmission mechanism and the variator are shifted so that a speed ratio of the transmission becomes a target speed ratio by controlling the transmission,
- the control method comprising:
- making an increase degree of the torque inputted to the transmission larger as an increase amount of rotation speed of the torque increasing portion in association with the shift of the transmission is larger;
- and
- upon making the increase degree of the torque inputted to the transmission lager, making the increase degree of the torque inputted to the transmission larger as a deviation amount between a reached speed ratio of the transmission and the target speed ratio is larger, the reached speed ratio being set in accordance with vehicle speed and an accelerator pedal opening and the target speed ratio serving as the reached speed ratio after filtering processing.
A control device for a vehicle, the control device being adapted to perform control in the vehicle having:
- a transmission having a variator and a stepped automatic transmission mechanism which are arranged in series with respect to each other in a power transmission route connecting a travel drive source and a drive wheel;
- shift control means for controlling the transmission to shift shifting the stepped automatic transmission mechanism and the variator so that a speed ratio of the transmission becomes a target speed ratio as a shift of the transmission;
- and
- a torque increasing portion adapted to increase torque inputted to the transmission in association with the shift of the transmission, the torque increasing portion corresponding to the travel drive source or another drive source,
- the control device comprising:
- torque setting means for making an increase degree of the torque inputted to the transmission larger as an increase amount of rotation speed of the torque increasing portion in association with the shift of the transmission is larger, wherein
- the torque setting means make the increase degree of the torque inputted to the transmission larger as a deviation amount between a reached speed ratio of the transmission and the target speed ratio is larger, the reached speed ratio being set in accordance with vehicle speed and an accelerator pedal opening and the target speed ratio serving as the reached speed ratio after filtering processing.
Dependencies are inferred from the claim text.