The Nonlinear Accuracy Model of Electro-Hydrostatic Actuator | IEEE Conference Publication | IEEE Xplore

The Nonlinear Accuracy Model of Electro-Hydrostatic Actuator


Abstract:

The electro-hydrostatic actuator (EHA) is a kind of power-by-wire (PBW) actuator. In this paper, a typical architecture of EHA is described and the block diagram model of...Show More

Abstract:

The electro-hydrostatic actuator (EHA) is a kind of power-by-wire (PBW) actuator. In this paper, a typical architecture of EHA is described and the block diagram model of EHA is established directly from the mathematic equations without transfer functions, which is a nonlinear accuracy model. The influence of refeeding circuit on the EHA system is discussed based on the comparison with conventional linear model. A gain-variable PID controller is introduced to this model to compensate the friction.
Date of Conference: 21-24 September 2008
Date Added to IEEE Xplore: 18 November 2008
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Conference Location: Chengdu, China

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