Klymenko V. Theoretical fundamentals of creation and improvement of vehicle brake control pneumatic devices, suspension and clutch

This thesis is devoted to the solution of a topical scientific problem of the improvement of vehicle traffic safety, vehicle movement smoothness as well as the ergonomic parameters of the clutch control gear on the basis of a systems approach to their design, manufacture and exploitation that is a theoretical basis for the creation and improvement of the vehicle brake control pneumatic devices, suspension and clutch. The method for the computation of the dynamics of the pneumatic brake gear is proposed to study the dynamics of various links of the pneumatic brake gear. It is proved that the two-stage floor level controller compensates for the lowering of a dynamic neutral position of vehicle during movement and to decrease movement of the suspension. The rational ratio sections of the two-stage floor level controller is determined. The pneumatic brake gear of a towed member is improved and the feature of automatic braking is taken into account, in case the feeding circuit is broken. This research contributes to the improvement of the control process of the clutch control gear pneumohydraulic booster that enables us to choose the rational parameters characteristics. The practical significance of the results is confirmed when the proposed methods and approaches have been used in serial production and experimental design work at automobile and automobile unit enterprises, in industry and during tests.