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Archives of Transport

Tytuł artykułu

Tracking control and robustness study of shifting process

Autorzy Zhao, X.  Guan, C. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN Heavy dump vehicles are usually working with big load changes and bad work environment, thus change the friction performance of transmission clutches, as well as great affect the shift quality seriously, which influence the vehicle performance. Many researchers developed a lot to design a useful automatic transmission control system. Using PID tracking control and Monte Carlo method, the controller based on an dynamic model was set up to analyze the shifting process of automatic transmission and its robustness in this paper. The shift process was divided into four stages, low-gear phase, torque phase, inertia phase and high-gear phase. The model presents the process from the first gear to the second gear when the torque has big change. Since the jerk and the friction work of clutch are both related to the speed of clutch which was easier to control, it was chose as the target to control the oil pressure for satisfying the requirement of shift quality. The simulation software, Maplesim and Simulink, were used to build the vehicle model and shifting controller for simulation under different working conditions, and the maximum jerk was changed from 34 m/s3 to 12 m/s3 after the optimization. In this paper the Monte Carlo has been used to quantize and evaluate the robustness of the closed-loop system for the friction coefficients and output torque of turbine variation leading by the friction feature parameters and throttle angle changed. Monte Carlo method was used to analyze the effectiveness and robustness of PID controller, which proves that it has good control effect when the throttle is ongoing minor fluctuations. When the throttle is full opening, a quadratic optimal controller based on disturbance is designed by the method of multi-objective optimization. When it changes within 20 percent, PID controller was designed under the guidance of tracking thoughts. The results also show that the controller could still obtain better effect when the friction coefficient ranged from -40 % to 40 % as well as engine torque changed from -20 % to 20 %, which indicates the robustness of controller.
Słowa kluczowe
PL pojazdy ciężkie   skrzynia automatyczna   zmiana wytrzymałości   proces kontroli   metoda Monte Carlo  
EN heavy vehicles   automatic transmission   shift quality   PID tracking control   Monte Carlo method  
Wydawca Warsaw University of Technology, Faculty of Transport
Czasopismo Archives of Transport
Rocznik 2018
Tom Vol. 46, iss. 2
Strony 97--104
Opis fizyczny Bibliogr. 16 poz., rys., wykr.
autor Zhao, X.
  • School of mechanical engineering, University of science and technology Beijing, Beijing, China,
autor Guan, C.
  • School of mechanical engineering, University of science and technology Beijing, Beijing, China,
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Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-56e2fabd-d98b-47c0-861b-3d11b098795a
DOI 10.5604/01.3001.0012.2111