A SIMPLIFIED METHOD FOR THE IDENTIFICATION OF VEHICLE SUSPENSION PARAMETERS
This paper presents a simplified method to identify vehicle suspension spring rates, damping characteristics, and unsprung mass inertia properties. The method presented employs a digital computer algorithm to implement an equation error identification technique. A sequence of four laboraory tests was developed to obtain suspension input and response data required in the equation error technique. To verify the technique a test stand employing an electro-hydraulic position servosystem was constructed and the test sequence was applied to the rear suspension of a 1972 Pontiac Catalina. When the identified parameters were used to simulate the response of the vehicle suspensions to the test input, agreement to within 13% of the actual maximum measured response resulted. /SASI/
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Corporate Authors:
Society of Automotive Engineers (SAE)
400 Commonwealth Drive
Warrendale, PA United States 15096 -
Authors:
- Brueck, D M
- Ward, E D
- Publication Date: 1977-9
Media Info
- Pagination: 10 p.
Subject/Index Terms
- TRT Terms: Accuracy; Algorithms; Damping (Physics); Digital computers; Inertia; Laboratory tests; Suspensions; Testing equipment
- Old TRIS Terms: Intersecting angle
- Subject Areas: Highways; Safety and Human Factors;
Filing Info
- Accession Number: 00182998
- Record Type: Publication
- Report/Paper Numbers: SAE 770884
- Files: TRIS
- Created Date: Dec 3 1978 12:00AM