2005
DOI: 10.1016/j.mechatronics.2005.01.003
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Experimenting and modelling the dynamics of pneumatic actuators controlled by the pulse width modulation (PWM) technique

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Cited by 75 publications
(34 citation statements)
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“…In this case, precise control is difficult due to the discrete-input nature of the system. Past research has developed solenoid-valve pneumatic systems, which utilize a pulse width modulated (PWM) controller [13], [14], [15], [16]. Using time averaging, a PWM input with a sufficiently high frequency can approximate the continuous input properties of a servovalve [11].…”
Section: Introductionmentioning
confidence: 99%
“…In this case, precise control is difficult due to the discrete-input nature of the system. Past research has developed solenoid-valve pneumatic systems, which utilize a pulse width modulated (PWM) controller [13], [14], [15], [16]. Using time averaging, a PWM input with a sufficiently high frequency can approximate the continuous input properties of a servovalve [11].…”
Section: Introductionmentioning
confidence: 99%
“…The static friction in EHAs has to be compensated in order to measure the characteristics. Consequently, friction-compensating methods including the application of dithered signals and pulse-width modulation control have been studied (22) . However, these methods are not suitable for EHAs, as they rely on the response performance of the servo valves.…”
Section: Introductionmentioning
confidence: 99%
“…However, it is preferable 1 to design controllers that take into account the open-loop system nonlinearities. PWM controllers have been developed in the past to control the position of solenoid-valve pneumatic actuators [4], [5], [6], [7]. A PWM input with a high switching frequency approximates a continuous input whose magnitude is determined by the PWM duty cycle.…”
Section: Introductionmentioning
confidence: 99%