Analysis of the automatic control system for multistage transmission with electropneumatic shifting

抄録

The paper describes the research conducted at the NNSTU named after R.E. Alekseev to design and create the multistage manual transmissions with automatic control and pneumatic actuator. It represents a general scheme of the transmission control, general equations that allow choosing the necessary pneumatic actuator parameters. It presents the process of gearshifting and determines the dependencies: -of the pressure rise in the power cylinder from the electro-valve jet diameter; -of the pneumatic cylinder rod displacement from the pressure for different diameters of the jet; -of the pneumatic cylinder rod displacement from time; -of the free power for different values of the maximum pressure in the receiver and the jet diameter; -of rotational speed during gearshifting in the synchronization process -of the total torque of unlocking during gearshifting; -when the synchronizer unlocking and the gear clutch shifting; -of the power cylinder rod displacemen for the total time of gearshifting. It presents the results of experimental studies and the results of comparison of theoretical and experimental data for the gearshifting time.