Interrelated power delivery controls – including engine control – Transmission control – Anticreep
Reexamination Certificate
2005-07-19
2005-07-19
Ho, Ha (Department: 3681)
Interrelated power delivery controls, including engine control
Transmission control
Anticreep
C477S093000
Reexamination Certificate
active
06918854
ABSTRACT:
A method and system for controlling creep in an automatic transmission, comprising a first creep torque control means which, upon generation of an accelerator- and brake-pedal undepressed state in a running mode, generates a target creep speed, the target creep speed increasing as a function of time and settling to a predetermined value, the first creep torque control means then calculating a creep torque from the target creep speed, detecting a change in vehicle load from a speed deviation, correcting a target creep torque on the basis of the detected change in vehicle load, and controlling the engine torque on the basis of the correction, and a second creep torque control means which controls a transfer torque of a starting clutch (a first friction clutch) on the basis of a slipping speed of the starting clutch and the target creep torque, the creep controlling method and system being able to realize a stable creep running even against a change in running environment such as the existence of a slope or an increase of payload while suppressing wear and heat generation of the friction clutch.
REFERENCES:
patent: 4885960 (1989-12-01), Maeda et al.
patent: 4969103 (1990-11-01), Maekawa
patent: 5446351 (1995-08-01), Kusano et al.
patent: 6358182 (2002-03-01), Eguchi
patent: 6377007 (2002-04-01), Ozaki et al.
patent: 6569052 (2003-05-01), Sakai et al.
patent: 6599220 (2003-07-01), Narita et al.
patent: 2002/0006851 (2002-01-01), Matsumura
patent: 585122 (1994-02-01), None
patent: 410166897 (1998-06-01), None
patent: 2000-179674 (2000-06-01), None
patent: 2002-096658 (2002-04-01), None
patent: 2002-267000 (2002-09-01), None
Kayano Mitsuo
Minowa Toshimichi
Ochi Tatsuya
Okada Takashi
Sakamoto Hiroshi
Crowell & Moring LLP
Ho Ha
LandOfFree
Method and system for controlling creep in automatic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for controlling creep in automatic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for controlling creep in automatic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3378521