Interrelated power delivery controls – including engine control – Transmission control – Engine controlled by transmission
Patent
1993-11-08
1995-07-18
Wright, Dirk
Interrelated power delivery controls, including engine control
Transmission control
Engine controlled by transmission
477120, 477904, B60K 4108
Patent
active
054336767
ABSTRACT:
A control apparatus for an engine and an automatic transmission controls a starting timing, a terminating timing, or methods of torque reduction of the engine during gear shifts. Using stored information such as a turbine speed signal, a gear shift signal, a degree to which a throttle valve is opened, a vehicle speed, an engine speed and so on, the control apparatus calculates an appropriate torque reduction which is performed by either retarding ignition timing or cutting fuel supplied to fuel injection valves. According to one embodiment of the invention, by detecting a variation ratio or differential value of turbine speed, a period of the torque reduction is started, ended, and kept within a proper timing. According to another embodiment of the invention, based on a "chasing" state of an input torque of the transmission against the variation of engine load, the timing of torque reduction is changed. Finally, according to yet another embodiment of the invention, a light preceding torque reduction is performed prior to a more significant torque reduction, but only when shocks due to the gear shift tend to occur.
REFERENCES:
patent: 4226141 (1980-10-01), Espenschied
patent: 4266447 (1981-05-01), Heess et al.
patent: 4355550 (1982-10-01), Will et al.
patent: 4370903 (1983-02-01), Stroh et al.
patent: 4370904 (1983-02-01), Muller et al.
patent: 4403527 (1983-09-01), Mohl et al.
patent: 4800781 (1989-01-01), Yasue et al.
patent: 5012695 (1991-05-01), Kyohzuka et al.
patent: 5036728 (1991-08-01), Kawasoe et al.
patent: 5046383 (1991-09-01), Butts et al.
patent: 5072630 (1991-12-01), Kikuchi et al.
patent: 5091854 (1992-02-01), Yoshimura et al.
patent: 5272632 (1993-12-01), Noguchi et al.
patent: 5291802 (1994-03-01), Kuriyama
patent: 5295415 (1994-03-01), Abe et al.
Von Manfred Schwab und Alfred Muller, "Der Motoreingriff--ein neues Element der elektronischen Getriebesteuerung", Bosch Techn. Berichte 7 (1983) 4, pp. 166-174.
Abe Mitsutoshi
Kitada Masahito
Marusue Toshihisa
Okamoto Kanji
Sasaki Kazuo
Mazda Motor Corporation
Ta Khoi O.
Wright Dirk
LandOfFree
Torque control apparatus for engine and automatic 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 Torque control apparatus for engine and automatic transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Torque control apparatus for engine and automatic transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2417422