1978-01-01

Dynamic Tests of the Servo-Steering/Vehicle Linkage System 785086

The goal of the study is to develop and systematize the most important characteristic values of the "Steering-Vehicle" linkage and to survey analytical methods which do not limit the dynamic behavior of the vehicle. Testing methods are described which allow immediate and continuous measurement of appropriate steering and vehicle parameters. An automatic steering device eliminates human factors from driving trial influences.Mechanical hesitations are subdivided into individual categories, e.g., "play" in the steering, elasticity of components, inertial characteristics of static and dynamic components, etc. Further analysis of linkage examines the asymmetric steering characteristics. Numerical values are developed to quantify various types of losses; by these means, the testing procedures offer definitive evaluation of steering linkage characteristics.Four representative systems are presented: an ideal linkage, a linkage with proportional time-delays, a linkage with non-proportional delays, and a totally non-ideal system. Finally, the linkages are presented in terms of static and dynamic hysterises losses.

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