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首页> 外文会议>Robotics, Automation and Mechatronics, 2008 IEEE Conference on >Dissimilar Redundancy Measurement of Swashplate Angle of Variable Pump Based on the Exact Linearization Model of EHCA
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Dissimilar Redundancy Measurement of Swashplate Angle of Variable Pump Based on the Exact Linearization Model of EHCA

机译：基于EHCA精确线性化模型的可变泵斜盘角的异种冗余度测量。

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This paper mainly focuses on the swashplate angle dissimilar redundancy measurement of the variable displacement pump in the electrohydraulic compound integrated actuator (EHCA). Dissimilar redundancy means that the practical system can acquire more than one measurement values to describe a certain signal through hardware or software manners. Aiming to the need of software sensing, the signal needed to be rebuilt is computed from the system model. So it proposes the exact linearization model of EHCA to handle the nonlinear problem of load flow in this paper. Comparing to the linearization model which nearing the working point and the general nonlinear model, the exact linearization method which based on nonlinear transformation in EHCA modeling, is not only truly reflects system characters with simple linear control theory, but also provides a reliable model for computing swashplate angle by using other signals measurement value from sensors. This method provides a valuable reference model in the practical dissimilar redundancy applications.
机译：本文主要研究电动液压复合集成执行器（EHCA）中可变排量泵的斜盘角异种冗余测量。不相似的冗余意味着实际系统可以通过硬件或软件方式获取多个测量值来描述特定信号。针对软件感测的需要，需要从系统模型中计算出需要重建的信号。因此，本文提出了一种精确的EHCA线性化模型来处理潮流的非线性问题。与接近工作点的线性化模型和一般的非线性模型相比，基于EHCA建模中的非线性变换的精确线性化方法不仅可以用简单的线性控制理论真实地反映系统特征，而且可以为计算提供可靠的模型通过使用来自传感器的其他信号测量值来控制斜盘角度。该方法在实际的不同冗余应用中提供了有价值的参考模型。

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