| 摘要 |
PROBLEM TO BE SOLVED: To prevent variation of speed change ratio during stop of a vehicle from influencing shock during the next start. SOLUTION: The controller of a vehicular belt type continuously variable transmission includes a primary pulley 11, a secondary pulley 12, a V-belt 13 wound around the primary pulley 11 and the secondary pulley 12, a starting clutch 3b for transmitting rotation of an engine 1 to the primary pulley 11 in a fastened state, and a CVT control unit 20 and a hydraulic control unit 30 for controlling primary pressure Ppri and secondary pressure Psec. When the vehicle is stopped and the starting clutch 3b is in a released state, the hydraulic balance of the primary pressure Ppri and the secondary pressure Psec is set to a hydraulic balance achieving a target pulley ratio at start of the vehicle while maintaining pulley ratio during stop of the vehicle, and when starting the vehicle, fastening of the starting clutch 3b is performed while maintaining the hydraulic balance. COPYRIGHT: (C)2010,JPO&INPIT |
