WHEELED VEHICLE STEERING SYSTEM

摘要

A wheeled vehicle steering system comprises adjustable steering input means (15); means (17) for generating first electrical control signals proportional to demanded input of the steering means; means ( 19) for steering a vehicle wheel in reponse to said control signals; sensing means (20) for detecting the response of the vehicle; means for producing second electrical signals proportional to said detected response; comparator means (18) for comparing said first and second electrical signals and producing a difference signal from the comparison; and means far steering a vehicle wheel in response to said difference signal. Using a closed loop control strategy can provide increased vehicle response, consistent vehicle handling characteristics over a wide speed range, improved vehicle stability and control.