Flat-track unit for motor vehicle test beds

Details Flat-track unit for motor vehicle test beds Flat-track unit for motor vehicle test beds

1989-08-30

1990-09-04

Raevis, Robert

Measuring and testing

Vehicle chassis

Steering

G01M 1500

Patent

active

049533916

ABSTRACT:
The invention relates to a flat-track unit for motor vehicle test beds comprising a roadway-simulating belt guided over two rollers. So that skew angles between belt running direction and wheel plane can be realized as close to reality as possible on the test bed, the frame supporting the guide rollers of the belt is pivotably mounted about a vertical axis and is provided with a pivot drive variable in a high-frequency manner. The drive and braking unit for the rollers is arranged so as to be spaced from the flat-track unit and mounted in a fixed position in the vertical direction, while it is displaceable on a circular arc-shaped horizontal guide running concentrically to the vertical axis. A corresponding displacement drive is provided for the drive and brake unit. The latter causes the drive and braking unit to follow, at a comparatively slow speed, the belt running directions of the flat-track unit and on which belt torsional oscillations are superimposed. A universal-joint shaft is arranged between flat-track unit and the drive and braking unit and is held in an approximately straightened position.

REFERENCES:
patent: 3520180 (1970-07-01), Polhemus et al.
patent: 4238954 (1980-12-01), Langer

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