DEVELOPMENT OF EXPERIMENTAL DESIGN METHODS OF EVALUATING PARAMETERS CHARACTERIZING CONTROLLABILITY AND STABILITY OF MOTOR CAR WITH ALL STEERABLE WHEEL

The purpose is the development and introduction of experimental design methods of determining the parameters of controllability and stability of motor cars with its front and rear steerable wheels into field test practice. A block-diagram of criteria evaluating the controllability and stability has been devised to permit matching the experimental evaluations and the results of instrumental measurements; a diagram extablishing the relationship between the movement conditions and control actions has been suggested; a mathematical model and software used for describing joint front and rear wheels steering has been constructed. It has been established that a change in angle between the longitudinal axis of the motor car and the velocity vector of its ceter of mass, as well as the difference in the delayed reaction response to the angular rate of turn of the car and to the lateral acceleration determine the formation of the law of joint front and rear wheel steeringAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio