Device for determining belt rotational speed of continuously var

Details Device for determining belt rotational speed of continuously var Device for determining belt rotational speed of continuously var

1995-11-08

1997-07-01

Schoeppel, Roger J.

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

Speed responsive

474 18, 474 28, 477 97, F16H 6342

Patent

active

056431163

ABSTRACT:
A device is proposed to determine the rotational speed of a transfer element (3) arranged in variable-diameter pulleys (1, 2) of a continuously variable transmission system, the said device Consisting of a sliding stock (4, 15), with a sensor (10, 16) which is supported on the transfer element (3) on the inner sides of the variable-diameter pulleys, which sliding stock is connected to the transmission case (8) by a spring (6) loaded rocker arm (5) mounted in a swivelling joint (7).
With the knowledge of the peripheral speed of the transfer element (3), the rotary speeds (N1, N2) of the set of variable-diameter pulleys (1, 2) and the effective transmission radii (r1, r2), the slippage can be determined between the transfer element (3) and the sets of variable-diameter pulleys (1, 2). By comparing the previously established maximum amounts of slippage with the detected amounts of slippage, the maximum requisite pressure applied by the axially shifting variable-diameter pulley (9) in each set of variable-diameter pulleys (1, 2) can be adjusted to the optimum amount (see FIG. 1).

REFERENCES:
patent: 3974893 (1976-08-01), Conner et al.
patent: 4364448 (1982-12-01), Ikuma
patent: 4735597 (1988-04-01), Cadee
patent: 4803628 (1989-02-01), Hayashi et al.
patent: 4803900 (1989-02-01), Ohkumo
patent: 5427579 (1995-06-01), Kanehara et al.

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