Abstract
With the rapid development of heavy-duty vehicles, increasing attention has been paid to the performance of high-power automatic transmission. An electro-hydraulic actuator, as a key component in automatic transmission, is crucial to the shifting quality. In this study, we develop a dynamic model of an electro-hydraulic actuator for heavy-duty vehicles, and adopt the artificial bee colony (ABC) algorithm to optimize the structural parameters to improve the ride comfort and fuel economy. First, a detailed model considering the flow force is developed to describe the motion inside the actuator based on the theory of fluid dynamics. Then the key design parameters, which affect the shifting performance significantly, are identified by combining the Bode plots and sensitivity analysis. Finally, the electro-hydraulic actuator is optimized to ensure the actual curve approximates the ideal trajectory while shortening the clutch pressure response time maximally by using the ABC algorithm. In comparison with the original parameters, the optimized design shows a major improvement in the rapid response and precise control of gear shifting. This investigation provides an efficient approach to design the structure parameters of clutch actuators to increase their shifting performance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
