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A New Technique for Improved Performance of the Pulse Width Modulation Control of Hydraulic Systems
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English
Abstract
Pulse width modulation (PWM) has been used to alter the performance of on-off hydraulic control valves to make them perform as proportional type flow control valves. Nonlinear performance resulting from time delays in valve switching as well as valve wear due to continuous cycling continue to persist as operational problems. This paper examines a new technique called modified PWM control. The method was found to provide accurate control with a minimum of valve chatter.
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Hou, Y., Schoenau, G., and Burton, R., "A New Technique for Improved Performance of the Pulse Width Modulation Control of Hydraulic Systems," SAE Technical Paper 952105, 1995, https://doi.org/10.4271/952105.Also In
Fluid Power: Applications, Standards, Noise, Lubricants, and Testing
Number: SP-1110; Published: 1995-09-01
Number: SP-1110; Published: 1995-09-01
References
- Hou Y. “Development of a Digital Electrohydraulic Control System and a High Speed On-off Solenoid Valve” Beijing Institute of Technology Beijing, China 1988
- Hou Y. Cao F. “A Digital Position System Using High Speed On-Off Solenoid Valves” The 2nd National Fluid Power Symposium Shangsha, China 1989
- Tanaka H. “Electrohydraulic Digital Control of 3-Way On-Off Solenoid Valves” Transactions of Japanese Society of Mechanical Engineers 50 458 2663 1984
- Muto T. Yamada H. Suematsu Y. “Digital Control of a Hydraulic Actuator System Operated by Differential Pulse Width Modulation,” JSME International Journal 33 4 641 1990
- Hou Y. “A Pulse Width Modulation Based Control System using High Speed On-Off Valves,” Dept. of Mechanical Engineering, University of Saskatcheawn 1994