Patent ID: 8996264
Filing Date: 2015-03-31
Classification: F16H

Abstract:
1. A control device for continuously variable transmission, comprising: an operating state detection device adapted to detect an operating state of a vehicle including a vehicle speed and an accelerator pedal opening; a control device adapted to control a speed ratio of a continuously variable transmission based on the operating state; an acceleration request determination device adapted to determine the presence or absence of an acceleration request of a driver based on the accelerator pedal opening; and a speed ratio setting device adapted to set a speed reduction ratio controlled by the control device to be smaller with an increase in an acceleration start vehicle speed if the accelerator pedal opening is equal during acceleration; the control device updates the acceleration start vehicle speed to a vehicle speed at the time of a determination after determining that the accelerator pedal opening has been increased during acceleration, and sets a continuously variable transmission input shaft rotation speed based on a transmission characteristic before the update of the acceleration start vehicle speed as a lower limit value of the continuously variable transmission input shaft rotation speed after the update if the continuously variable transmission input shaft rotation speed based on a transmission characteristic after the update is lower than the continuously variable transmission input shaft rotation speed based on the transmission characteristic before the update.