Determination of the Kinematic Lead/Lag Ratio of Tractor Wheel Drives Taking Into Account Tire Indicators

Abstract

The proposed method allows evaluating an automobile handling with or without accounting withdrawal, with various types of drive wheels and various steering wheels using partial acceleration. Determination of lateral and tangential reactions on automobile tire while turning in view tire slip allows more accurate evaluating of automobile maneuverability, stability and handling. Determination of vehicle total and partial angular accelerations during its driving into rotation with and without accounting withdrawal allows developing an vehicles handling improving algorithm with different tire types. Using of different ways in vehicle managing is complicating associated with machine design and control process by machine handling characteristics changing during applying the locking devices. The equations of front-wheel drive vehicles and all-wheel drive vehicles rotational motion when driving on curves without removal are the same. Appearance of new ways to perform maneuvers such as turning movement with all the drive wheels (4WS), requires researching of movement trajectory, stability and handling of machines during specified maneuvering. The partial acceleration method allows the assessment of the controllability of vehicles with different types of drives (front-, rear - and all-wheel drive) and with different steerable wheels. The determination of lateral reactions on the wheels of the vehicle when turning allows for a more accurate assessment of the agility, stability and handling of vehicles