Shift control device for continuously-variable transmission and shift control method for continuously-variable transmission

A shift control device for a continuously-variable transmission, the shift control device comprising:

• an operation condition detecting device adapted to detect operation conditions of a vehicle, including a vehicle speed and an accelerator opening;
• a control device adapted to control a transmission ratio of the continuously-variable transmission based on the operation conditions;
• an acceleration demand identifying device adapted to identify whether acceleration is demanded by a driver;
• and
• a linear mode setting device adapted to set a linear mode which provides the transmission ratio such that an input revolution speed of the continuously-variable transmission becomes high compared to a normal mode at a same vehicle speed, when the acceleration demand identifying device identifies that acceleration is demanded by the driver based on the acceleration opening and an accelerator opening speed, wherein the shift control device further comprises:
• a front/rear G detecting device adapted to detect a front/rear G of the vehicle;
• and
• a linear mode cancelling device adapted to cancel the linear mode when the acceleration demand identifying device identifies that acceleration is not demanded based on the front/rear G during drive in the linear mode, even when the acceleration opening and the accelerator opening speed satisfy.

A shift control device for a continuously-variable transmission, the shift control device comprising:

• operation condition detecting means for detecting operation conditions of a vehicle, including a vehicle speed and an accelerator opening;
• control means for controlling a transmission ratio of the continuously-variable transmission based on the operation conditions;
• acceleration demand identifying means for identifying whether acceleration is demanded by a driver;
• and
• linear mode setting means for setting a linear mode which provides the transmission ratio such that an input revolution speed of the continuously-variable transmission becomes high compared to a normal mode at a same vehicle speed, when the acceleration demand identifying means identities that acceleration is demanded by the driver based on the acceleration opening and an accelerator opening speed, wherein the shift control device further comprises:
• front/rear G detecting means for detecting a front/rear G of the vehicle;
• and
• linear mode cancelling means for canceling the linear mode when the acceleration demand identifying means identifies that acceleration is not demanded based on the front/rear G during drive in the linear mode, even when the acceleration opening and the accelerator opening speed satisfy.

A shift control method for a continuously-variable transmission, comprising:

• detecting operation conditions of a vehicle, including a vehicle speed and an accelerator opening;
• controlling a transmission ratio of the continuously-variable transmission based on the operation conditions;
• identifying whether acceleration is demanded by a driver;
• and
• setting a linear mode which provides the transmission ratio such that an input revolution speed of the continuously-variable transmission becomes high compared to a normal mode at a same vehicle speed, when the acceleration demand identifying means identifies that acceleration is demanded by the driver based on the acceleration opening and an accelerator opening speed, wherein the shift control method further comprises:
• detecting a front/rear G of the vehicle;
• and
• canceling the linear mode when acceleration is not demanded based on the front/rear G during drive in the linear mode, even when the acceleration opening and the accelerator opening speed satisfy.