Interrelated power delivery controls – including engine control – Transmission control – Including fluid drive
Patent
1993-03-04
1994-08-30
Kwon, John T.
Interrelated power delivery controls, including engine control
Transmission control
Including fluid drive
477120, 477905, B60K 4118
Patent
active
053417038
ABSTRACT:
A system for scheduling gear ratio changes in an automatic transmission and controlling operation of a torque converter bypass clutch includes a microprocessor; electronic memory containing control algorithms, lookup tables, functions and constants; solenoid-operated shift valves, a variable force solenoid, friction clutches, brakes and sensors, and planetary gear units. A table of calibrated performance weighting factors (PWF) is used to alter reference schedules of gear ratio changes based on the extent to which high performance operation is desired rather than economy operation. The PWFs are used to adjust gear shift points based on inferences drawn from engine throttle position and time rate of change of throttle position. Hydraulic pressure supplied to the friction elements and the schedule of unlocked and modulated operation of the torque converter are adjusted from reference schedules and pressures on the basis of PWF values.
REFERENCES:
patent: 4111072 (1978-09-01), Harmon et al.
patent: 4338666 (1982-07-01), Suzuki et al.
patent: 4350057 (1982-09-01), Kishi et al.
patent: 4367812 (1983-01-01), Kobayashi et al.
patent: 4474081 (1984-10-01), Kinugasa et al.
patent: 4523281 (1985-06-01), Noda et al.
patent: 4564906 (1986-01-01), Stephan et al.
patent: 4669335 (1987-06-01), Matsuoka et al.
patent: 4679145 (1987-07-01), Beeck et al.
patent: 4688450 (1987-08-01), Hayashi et al.
patent: 4718310 (1988-01-01), Shindo et al.
patent: 4722249 (1988-02-01), Harada et al.
patent: 4733580 (1988-03-01), Kubo et al.
patent: 4807497 (1989-02-01), Yasue et al.
patent: 4815341 (1989-03-01), Ohkubo et al.
patent: 4823642 (1989-04-01), Iwaki et al.
patent: 4853720 (1989-08-01), Onari et al.
patent: 4899280 (1990-02-01), Onari et al.
patent: 4926328 (1990-05-01), Funatsu et al.
patent: 5031100 (1991-07-01), Takahashi
patent: 5035159 (1991-07-01), Shibayama
patent: 5038287 (1991-08-01), Taniguchi et al.
patent: 5040114 (1991-08-01), Ishikawa et al.
patent: 5081886 (1992-01-01), Person et al.
patent: 5126940 (1992-06-01), Haubner
patent: 5157991 (1992-10-01), Sumimoto
patent: 5189931 (1993-03-01), Suzuki
patent: 5231582 (1993-07-01), Takahashi et al.
patent: 5234876 (1993-08-01), Minowa et al.
patent: 5267158 (1993-11-01), Sakaguchi et al.
Bird Stuart L.
Daubenmier John A.
Greene Thomas L.
Kock Karl H.
McCall Gavin F.
Ford Motor Company
Kwon John T.
May Roger L.
McKenzie Frank G.
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