Modeling and Dynamic Analysis on the Direct Operating Solenoid Valve for Improving the Performance of the Shifting Control System

The dynamic characteristics and energy loss in a shifting control system is important and necessary in the performance improvement of an automatic transmission. The direct operating solenoid valve has been considered as a potential component applying in the shifting control system in vehicle. The pr...

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Bibliographic Details
Published in:Applied sciences 2017-12, Vol.7 (12), p.1266
Main Authors: Xu, Xiangyang, Han, Xiao, Liu, Yanfang, Liu, Yanjing, Liu, Yang
Format: Article
Language:English
Subjects:
Accuracy
Automatic transmissions
Computer simulation
Control systems
Controllers
direct operating solenoid valve
Dynamic characteristics
Energy loss
forces
leakage flow
Magnetic fields
Mathematical models
Optimization
Physics
Pneumatics
response pressure
Response time
Simulation
Solenoid valves
Valves
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Summary:The dynamic characteristics and energy loss in a shifting control system is important and necessary in the performance improvement of an automatic transmission. The direct operating solenoid valve has been considered as a potential component applying in the shifting control system in vehicle. The previous method can solve only a specific physical field or use the test results of the magnetic force as input curve. The paper presents a numerical approach for solving the multi-domain physical problem of the valve. A precise model of the direct acting solenoid valve considering different physical field is developed. An experimental study is also performed to evaluate and confirm the simulation. Based on the model, the influences on the dynamic characteristics of the valve are analyzed by calculating forces acting on the valve. The systematic analysis of forces and energy loss characteristics are performed for three different flow conditions varying clearance height from 10 µm to 30 µm. The results demonstrate that the pressure response time can be improved with smaller clearance between the spool and the sleeve. Moreover, the leakage of the shifting control system employing the direct acting solenoid valve can be reduced by 60% compared to the conventional two-stage pilot valve in our previous product.
ISSN:2076-3417
2076-3417
DOI:10.3390/app7121266