Shift control system for continuously variable traction roller t

Details Shift control system for continuously variable traction roller t Shift control system for continuously variable traction roller t

1992-07-31

1994-02-15

Braun, Leslie A.

Friction gear transmission systems or components

Fluid control

Of toroidal transmission

476 40, F16H 1508

Patent

active

052862402

ABSTRACT:
A shift control system for a continuously variable traction roller transmission controls the feedback to a shift control valve so that a ratio b/a of a variation "b" mm of a feedback amount to the shift control valve for 1 mm of a displacement of a power roller to a variation "a" mm of the feedback amount to the shift control valve for 1 degree of an inclination of the power roller is in a range given by: 1.74R.sup.4/5 -3.90.ltoreq.b/a.ltoreq.3.09R.sup.5/9 +30.51.

REFERENCES:
patent: 3142189 (1964-07-01), Davis et al.
patent: 3142190 (1964-07-01), Kelsey et al.
patent: 4911030 (1990-03-01), Kraus
patent: 4960004 (1990-10-01), Hibi et al.
patent: 5048359 (1991-07-01), Nakano
patent: 5052236 (1991-10-01), Nakano
patent: 5136890 (1992-08-01), Hibi et al.

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