Suspension system for motor vehicle

Details Suspension system for motor vehicle Suspension system for motor vehicle

1990-03-07

1991-10-22

Bertsch, Richard A.

Land vehicles

Wheeled

Running gear

280707, 280688, B60G 1108, B60G 1702

Patent

active

050589180

ABSTRACT:
A suspension system for use on a motor vehicle includes a suspension having a leaf spring as a resilient member, and a plurality of strain gauges mounted on the leaf spring in suitable locations thereon. The value of a strain of the leaf spring in a particular position where one of the strain gauges is disposed is estimated on the basis of the measured value of a strain which is detected by another strain gauge. The difference between the estimated strain value and the value of a strain detected by the strain gauge in the particular position is then calculated. A deteriorated condition of the leaf spring can now be determined according to the calculated difference which is checked according to a preset reference or criterion.

REFERENCES:
patent: 2004063 (1935-06-01), Ganz
patent: 3140083 (1964-07-01), Mahrle
patent: 3169026 (1965-02-01), Soer
patent: 3204717 (1965-09-01), Collins
patent: 3499662 (1970-03-01), Mahrle
patent: 4411159 (1983-10-01), Spear et al.
patent: 4619457 (1986-10-01), Lafferty
patent: 4858950 (1989-05-01), Kajiwara et al.
patent: 4903984 (1990-02-01), Kajiwara et al.

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