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A Speed Sensitive Variable Assistance Power Steering System
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English
Abstract
The paper describes the variable assistance power steering system introduced on the 1978 Honda Accord LX. The system provides full power assist at parking speeds, with a gradual decrease in assistance with increasing vehicle speed, giving a normal unassisted “road feel” at highway speeds.
The system eliminates sudden changes in steering effort at highway speeds, due to power source failure. Particular attention was given to ensure a ‘fail safe’ condition in the event of a malfunction of any part of the system and specifically the speed sensing mechanism.