Ratio control for continuously variable transmission for automot

Details Ratio control for continuously variable transmission for automot Ratio control for continuously variable transmission for automot

1987-09-21

1989-04-18

LaRoche, Eugene R.

Boots, shoes, and leggings

74866, B60K 4112, B60K 4118, G06F 1550

Patent

active

048232670

ABSTRACT:
A control system for a continuously variable transmission for an automotive vehicle, including a hydraulically operable driver pulley and follower pulley, a V-belt tensioned between the driver and follower pulleys, and means, including a shift actuator and a shift control valve, for hydraulically controlling a reduction ratio between the driver and follower pulleys by controlling a ratio of hydraulic fluid pressure applied to the driver pulley to hydraulic fluid pressure applied to the follower pulley. According to this control system, the continuously variable transmission is prohibited against effecting downshifting after predetermined conditions have been satisfied after application of the vehicle brake as detected by a brake sensor.

REFERENCES:
patent: 3893344 (1975-07-01), Dontigraber et al.
patent: 4458313 (1984-07-01), Smit et al.
patent: 4533340 (1985-08-01), Abo et al.
patent: 4543077 (1985-09-01), Yamamuro et al.
patent: 4559029 (1985-12-01), Miranti, Jr. et al.
patent: 4579021 (1986-04-01), Yamamuro et al.
patent: 4589071 (1986-05-01), Yamamuro et al.
patent: 4590561 (1986-05-01), Abo et al.
patent: 4597308 (1986-07-01), Tanaka et al.
patent: 4603602 (1986-08-01), Tanaka et al.
patent: 4637277 (1987-01-01), Gaddi
patent: 4653005 (1987-03-01), Osanai et al.
patent: 4660440 (1987-04-01), Matsumura et al.
patent: 4665775 (1987-05-01), Nagamatsu et al.
patent: 4669336 (1987-06-01), Okada et al.
patent: 4670843 (1987-06-01), Matsumura et al.
patent: 4702128 (1987-10-01), Oshiage
patent: 4736655 (1988-04-01), Kumura et al.
Dubbel, "Taschenbuch fuer den Maschinenbau", Springer Verlag Berlin, 13th Edition, vol. 2, 1974, p. 883.
Stueper, "Automatische Automobilgetriebe", Springer-Verlag, Austria, 1965, pp. 301-309.
Samal, Grundriss der Praktischen Regelungstechnik, R. Oldenbourg Muenchen, 1960, pp. 310-318.
Abromeit, "Konzept einer Elektronischen Steuerung fuer ein Stufenloses Mechanisches Getriebe", Antriebstechnik, No. 24, 1985, pp. 49-51.

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