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Short summary
The new pneumatic–electric hybrid actuator with pneumatic and electric driving modes has the problem of speed fluctuation in the process of driving switching. This affects the stability in the positioning process. In order to solve this problem, the motion characteristics of piston rod in pneumatic locking are studied. A relay and run strategy is proposed to solve the problem of speed fluctuation.
MS | Articles | Volume 12, issue 2
Mech. Sci., 12, 971–982, 2021
https://doi.org/10.5194/ms-12-971-2021
Mech. Sci., 12, 971–982, 2021
https://doi.org/10.5194/ms-12-971-2021

Research article 27 Oct 2021

Research article | 27 Oct 2021

Research on the smooth velocity control of a driving switching process of a new pneumatic electric hybrid actuator

Jiabin Yang and Xiaoning Li

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Cited articles

Dong, D. and Li, X.: Development of a novel parallel-spool pilot operated high-pressure solenoid valve with high flow rate and high velocity, Chin. J. Mech. Eng., 28, 369–378, https://doi.org/10.3901/CJME.2015.0104.001, 2015. 
Jiang, Q., Li, X., Lu, J., and Teng, Y.: Study of Testing Methods of Low Value Friction of Pneumatic Cylinders, Machine Building and Automation, 40, 45–48, https://doi.org/10.3969/j.issn.1671-5276.2011.01.015, 2011 (in Chinese). 
Li, X. and Yang, J.: Pneumatic-electric hybrid controll actuator, Chinese Patent: ZL201811208567.2, 5 June 2020 (in Chinese). 
Paul, J. C. and Kenneth, J. W.: Characterization of an Electric-Pneumatic hybrid prismatic actuator, J. Mech. Robot., 2, 1–8, https://doi.org/10.1115/1.4001087, 2010. 
Qi, H., Zhang, B., Zhang, N., Zhang, M., and Chen, Y.: Enhanced Lateral and Roll Stability Study for a Two-Axle Bus via Hydraulically Interconnected Suspension Tuning, SAE International Journal of Vehicle Dynamics, Stability, and NVH, 3, 5–18, https://doi.org/10.4271/10-03-01-0001, 2018. 
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Short summary
The new pneumatic–electric hybrid actuator with pneumatic and electric driving modes has the problem of speed fluctuation in the process of driving switching. This affects the stability in the positioning process. In order to solve this problem, the motion characteristics of piston rod in pneumatic locking are studied. A relay and run strategy is proposed to solve the problem of speed fluctuation.
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