Arrangement for monitoring the wear status of a friction clutch

Details Arrangement for monitoring the wear status of a friction clutch Arrangement for monitoring the wear status of a friction clutch

1999-03-08

2000-03-21

Lefkowitz, Edward

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340454, 731181, 7386231, G08B 2100

Patent

active

060407689

ABSTRACT:
An arrangement for monitoring the wear status of a friction clutch in the drivetrain of a motor vehicle driven by an internal combustion engine includes a wear detection circuit that responds to speed information representing the instantaneous input speed of the friction clutch supplied by a first speed sensor and to information supplied by a movement sensor representing the beginning of a starting process. The wear detection circuit supplies, as a measurement for the loading of the friction clutch during a starting process, load information which is a predetermined monotonic function of a value of the first speed information following the beginning of movement after a predetermined time interval. The monotonic function could also be of a mean value from a plurality of values of the first speed information succeeding one another at predetermined time intervals following the beginning of movement.

REFERENCES:
patent: 4499450 (1985-02-01), Makita
patent: 4651142 (1987-03-01), Klatt
patent: 4848531 (1989-07-01), Gray et al.
patent: 5723779 (1998-03-01), Hara et al.
patent: 5847272 (1998-12-01), Schneider et al.

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