Method for determining the rotational speed of a part,...

Details Method for determining the rotational speed of a part,... Method for determining the rotational speed of a part,...

2003-04-10

2009-10-20

McCall, Eric S (Department: 2855)

Measuring and testing

Vehicle drive train

Transmission

Reexamination Certificate

active

07603893

ABSTRACT:
The input rotational speed of a belt-driven conical-pulley transmission is determined by measuring a wheel rotational speed and the transmission ratio and by calculating the input rotational speed therefrom. In order to ascertain the slipping of a CVT transmission, the rate of change in the transmission ratio is drawn upon, or an acoustic parameter of the transmission is used. In the fluid control system, a valve is used whose opening cross-section is controlled according to the one differential pressure. In order to oil the conical discs, injection holes of an injection tube are used that passes through a slot provided in a slide rail resting against a strand of a flexible torque transmitting member of a conical disc flexible drive.

REFERENCES:
patent: 4995470 (1991-02-01), Yamaguchi et al.
patent: 5515272 (1996-05-01), Sakai et al.
patent: 5936158 (1999-08-01), Ashizawa et al.
patent: 7356399 (2008-04-01), Eguchi et al.
patent: 2002/0095992 (2002-07-01), Gierling et al.
patent: 1 158 214 (2001-11-01), None

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