Invention Grant
- Patent Title: Control of and control method for vehicle continuously variable transmission
- Patent Title (中): 车辆无级变速器的控制和控制方法
-
Application No.: US12837133Application Date: 2010-07-15
-
Publication No.: US08585542B2Publication Date: 2013-11-19
- Inventor: Seiichiro Takahashi , Hiroyasu Tanaka , Ryousuke Nonomura , Jouji Seki , Takuichiro Inoue , Mamiko Inoue
- Applicant: Seiichiro Takahashi , Hiroyasu Tanaka , Ryousuke Nonomura , Jouji Seki , Takuichiro Inoue , Mamiko Inoue
- Applicant Address: JP Yokohama-shi JP Fuji-shi
- Assignee: Nissan Motor Co., Ltd.,JATCO Ltd
- Current Assignee: Nissan Motor Co., Ltd.,JATCO Ltd
- Current Assignee Address: JP Yokohama-shi JP Fuji-shi
- Agency: Foley & Lardner LLP
- Priority: JP2009-169181 20090717
- Main IPC: B60W10/04
- IPC: B60W10/04 ; F16H61/662 ; F16H61/00

Abstract:
A control device for a vehicle continuously variable transmission comprises a shift control means for controlling either of or both the speed ratio at the continuously variable transmission mechanism and the gear position at the subtransmission mechanism so as to adjust an overall speed ratio to a final speed ratio and a torque capacity control means for controlling the torque capacity at a disengagement-side frictional engagement element in the subtransmission mechanism so as to sustain a torque capacity value substantially equal to zero in an inertia phase occurring during a process of adjusting the gear position at the subtransmission mechanism from the first gear position to the second gear position when a negative torque is input to the vehicle continuously variable transmission.
Public/Granted literature
- US20110015839A1 CONTROL OF AND CONTROL METHOD FOR VEHICLE CONTINUOUSLY VARIABLE TRANSMISSION Public/Granted day:2011-01-20
Information query