Abstract
This paper studies the hydraulic retarder torque control strategies for heavy duty vehicle longitudinal control to reduce the abrasion of the friction brake. A hydraulic retarder whose oil volume rate is controlled by a pneumatic system is modelled. A hierarchical controller is developed for longitudinal control. In the upper controller, the target total brake force is calculated and then distributed on the friction brake and the retarder. In the lower controller, two retarder torque control strategies, PID control and mixed PID and sliding mode control, are employed and compared. Simulations are conducted with varying vehicle mass and varying desired vehicle velocity. Results show that the mixed PID and sliding mode controller has better speed tracking performance, robustness and torque control accuracy.
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.
