TY - JOUR
T1 - System modelling and analysis on stability of electro-hydraulic pressure regulating system for shift actuator including an accumulator
AU - Ren, Yanfei
AU - Xi, Junqiang
AU - Meng, Fei
AU - Ma, Kaiwen
N1 - Publisher Copyright:
© 2021 The Authors. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/)
PY - 2021
Y1 - 2021
N2 - The shift actuator of wet clutch adopt an electro-hydraulic pressure regulating system (EHPRS), which play a critical role to shifting quality. Related research shows that the accumulator can improve the stability of output pressure for EHPRS, but its working mechanism and influence law are not clear yet. In this paper, a spring-type accumulator that connected in parallel in the control chamber of EHPRS is studied and analyzed. Firstly, the system mechanism is analyzed; then, the mathematical model and simulation model of system are established; finally, based on the simulation model, the dynamic characteristics of system are analyzed, and the influence of accumulator on the stability performance is revealed. The results show that under the same conditions, the accumulator can significantly reduce the overshoot of output pressure and shorten the stabilization time of output pressure, without affecting the pressure build-up time of output pressure. At the same time, with the increase of accumulator orifice and spring stiffness, the stability of system is significantly improved. It provides reference value for system design.
AB - The shift actuator of wet clutch adopt an electro-hydraulic pressure regulating system (EHPRS), which play a critical role to shifting quality. Related research shows that the accumulator can improve the stability of output pressure for EHPRS, but its working mechanism and influence law are not clear yet. In this paper, a spring-type accumulator that connected in parallel in the control chamber of EHPRS is studied and analyzed. Firstly, the system mechanism is analyzed; then, the mathematical model and simulation model of system are established; finally, based on the simulation model, the dynamic characteristics of system are analyzed, and the influence of accumulator on the stability performance is revealed. The results show that under the same conditions, the accumulator can significantly reduce the overshoot of output pressure and shorten the stabilization time of output pressure, without affecting the pressure build-up time of output pressure. At the same time, with the increase of accumulator orifice and spring stiffness, the stability of system is significantly improved. It provides reference value for system design.
KW - Accumulator
KW - Electro-hydraulic pressure regulating system
KW - Pressure overshoot
KW - Pressure response quality
KW - Shifting quality
UR - http://www.scopus.com/inward/record.url?scp=85120755938&partnerID=8YFLogxK
U2 - 10.1016/j.ifacol.2021.10.168
DO - 10.1016/j.ifacol.2021.10.168
M3 - Conference article
AN - SCOPUS:85120755938
SN - 2405-8963
VL - 54
SP - 228
EP - 234
JO - IFAC-PapersOnLine
JF - IFAC-PapersOnLine
IS - 10
T2 - 6th IFAC Conference on Engine Powertrain Control, Simulation and Modeling E-COSM 2021
Y2 - 23 August 2021 through 25 August 2021
ER -
