Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1991-01-29
1992-10-27
Bonck, Rodney H.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74867, 474 28, F16H 1102
Patent
active
051579928
ABSTRACT:
A hydraulic control apparatus for a vehicle continuously variable transmission including a pressure regulating valve having a valve spool which operates depending upon a determined current speed ratio of the transmission and a currently detected required output of the vehicle engine, to generate a controlled belt tensioning pressure for controlling the tension of a transmission belt at a required minimum level. The apparatus further includes a device responsive to an electric signal, for generating a pilot pressure to be applied to the valve, and an electronic control device for calculating a basic output pressure of the valve, based on the current speed ratio and the currently required output, according to a stored predetermined relationship among these two parameters and the basic output pressure, to determine the electric signal so that the belt tensioning pressure coincides with the optimum value.
REFERENCES:
patent: 4631043 (1986-12-01), Tokoro et al.
patent: 4673378 (1987-06-01), Tokoro et al.
patent: 4718306 (1988-01-01), Shigematsu et al.
patent: 4857034 (1989-08-01), Kouno et al.
patent: 4858497 (1987-08-01), Kouno
patent: 4867732 (1989-09-01), Soga et al.
patent: 4942783 (1990-07-01), Morimoto
patent: 4967621 (1990-11-01), Soga et al.
patent: 5006093 (1991-04-01), Itoh et al.
Hattori Yuji
Hayashi Takashi
Kato Nobuyuki
Kouno Katsumi
Bonck Rodney H.
Stavish Matthew
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Hydraulic control apparatus for belt-and-pulley type continuousl does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic control apparatus for belt-and-pulley type continuousl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic control apparatus for belt-and-pulley type continuousl will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-899564