TERRAIN PREVIEWING FOR AN ACTIVE SUSPENSION SYSTEM

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Authors
  1. McCormac, A.W.
  2. Hanna, D.M.
  3. Anderson, R.J.
  4. Tragenza, J.E.
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN);Queen's Univ, Kingston ONT (CAN) Dept of Mechanical Engineering
Abstract
A terrain previewing system has been created for the experimental active suspension vehicle that exists at Defence Research Establishment Suffield. The system employs ultrsonic transducers to measure the terrain elevation just ahead of the vehicle's front wheels. The elevation information is processed and correlated to vehicle forward speed by an on-board microcomputer. The elevation profile is then passed to the active suspension control computer so the algorithms used to control the active suspension actuators can have advance warning of bumps and dips. Preliminary resuls on a fabricated steel bump show that active control using preview information performs significantly better than passive suspension, and measurably better than active control without preview.
Report Number
DRES-M-1432 — Memorandum
Date of publication
01 Feb 1994
Number of Pages
24
DSTKIM No
94-01388
CANDIS No
139254
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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