Foley & Lardner, LLP
Vehicle stepless transmission control device
A control device for a continuously variable transmission of a vehicle includes: a shift control section being configured to perform a rough road corresponding control to increase the hydraulic pressure supplied to the secondary pulley to a value larger than the hydraulic pressure at a smooth road judgment at which the smooth road is judged, at a rough road judgment at which the rough road is judged, and thereby to increase the clamping force of the secondary pulley with respect to the circular belt member; and a rotation speed control section being configured to control the transmission gear ratio at the rough road judgment so that a rotation speed of the primary pulley becomes equal to or greater than a lower limit rotation speed which is previously set.
JATCO LTD NISSAN MOTOR CO., LTD.
F F F F F F F F
F16H F16H F16H F16H F16H F16H F16H F16H
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Kiyofumi Kosuke Youji
Sasaki Abe Itou