Interrelated power delivery controls – including engine control – Transmission control – Continuously variable friction transmission
Patent
1997-01-07
1999-04-06
Wright, Dirk
Interrelated power delivery controls, including engine control
Transmission control
Continuously variable friction transmission
477 46, 701 52, 701 54, F16H 6100
Patent
active
058909915
ABSTRACT:
A control system of a vehicular continuously variable transmission having a manual transmission mode comprises speed ratio changing when a manual transmission mode is chosen and a speed range is manually selected for changing a speed ratio of the selected speed range in the up-shift direction as the engine speed becomes high on the side of low speed ranges and in the down-shift direction as the vehicle speed becomes high on the side of high speed ranges. Further, in the manual transmission mode, when the engine speed reaches a lower limit value without making a down-shift, the speed ratio is controlled so as to hold the engine speed at the lower limit value. Thus constituted continuously variable transmission provides a vehicle with miscellaneous advantages such as an easy handling, smooth acceleration/deceleration performance, extended maximum speed and the like when the manual transmission mode is selected.
REFERENCES:
patent: 4354401 (1982-10-01), Omitsu
patent: 4947953 (1990-08-01), Morimoto
patent: 5033571 (1991-07-01), Morimoto
patent: 5094129 (1992-03-01), Sugaya et al.
patent: 5127288 (1992-07-01), Hojo et al.
patent: 5203235 (1993-04-01), Iizuka
patent: 5351570 (1994-10-01), Mizunuma et al.
patent: 5364321 (1994-11-01), Togai et al.
patent: 5527231 (1996-06-01), Seidel et al.
patent: 5527232 (1996-06-01), Seidel et al.
patent: 5609544 (1997-03-01), Lardy et al.
patent: 5636120 (1997-06-01), Yesel et al.
patent: 5655991 (1997-08-01), Lardy et al.
patent: 5685800 (1997-11-01), Toukura
Farber Martin A.
Fuji Jukogyo Kabushiki Kaisha
Kwon Peter T.
Wright Dirk
LandOfFree
Control system and method of continuously variable transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control system and method of continuously variable transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system and method of continuously variable transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1365872