Sylchenko M. Improvement of the automated control system of a mechanical transmission of vehicles of the category N3 and M3

Improvement of the automated mechanical transport management system of category N3 and M3. Qualifying research paper printed as manuscript. Thesis for the Degree of Ph.D. of Engineering Sciences (Doctor of Philosophy) in 05.22.02 “Automobiles and Tractors” (274 – Automobile Transport). – Kharkiv National Automobile and Highway University, Ministry of Education and Science of Ukraine, Kharkiv, 2018. The focus of this thesis is on the improvement of operational parameters of electro–mechanical automatic gear–shift assembly of heavy–duty trucks and buses, improvement of the design of the transmission control assembly actuator, optimization of the control algorithm of the automatic electro–mechanical gear–shift assembly. According to the analysis of the obtained results, a design of the actuator of gear–shift mechanism with two proprietary DC motors is proposed for further improvement. It was determined that the proposed new interconnections between the structural components of the gear–shift mechanism provide means for simultaneously obtaining the required response time of the assembly, high adjustment accuracy, and provide the necessary effort on the synchronizer. A mathematical formulation of the working process of the actuation of gear by automated electro–mechanical gear–shifting mechanism is performed. The mathematical model of the actuator of the electro–mechanical gear–shift assembly includes: differential equations describing the operation of the DC motor, and the equation of connection.