巻号一覧
51 巻, 11 号
選択された号の論文の6件中1～6を表示しています
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論文
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丸山 直人, 小池 雅和, 千田 有一2015 年 51 巻 11 号 p. 755-762
発行日: 2015年
公開日: 2015/11/21
ジャーナル フリーThis paper addresses the vibration control of pneumatic isolation table using solenoid valves. Solenoid valves are effective in damping of large vibrations by its high speed response and can make a control system with low cost. However, control inputs are restricted to finite discrete values because solenoid valve is an on-off type actuator. Therefore, it is required to consider discrete-valued input system. Some control methods have been proposed for discrete-valued input system, but there are some cases where good control inputs cannot be obtained. In order to improve the control performance, a model predictive control method which is able to be applied to the plant with discrete-valued input and fast sampling period, is proposed. This method can obtain good discrete-valued control input with a small amount of calculation cost. Effectiveness of the proposed method is verified by numerical simulations and experiments.抄録全体を表示PDF形式でダウンロード (1543K) -
—スケジューリングH∞ループ整形によるアプローチ—清水 駿, 渡辺 亮2015 年 51 巻 11 号 p. 763-768
発行日: 2015年
公開日: 2015/11/21
ジャーナル フリーThis paper proposes a novel steering operation model scheduled by vehicle velocity. The model is constructed via the H∞ loop shaping. In order to improve driving safety, driver assistance systems have been focused on recently. The analysis by using a driver model is indispensable to design efficiently driver assistance systems. The proposed model must be scheduled by vehicle velocity since the driver's operation characteristics vary according to vehicle velocity. The model shows excellent course following performances in single/double lane change simulations with velocity change.抄録全体を表示PDF形式でダウンロード (1123K) -
浅野 佑治, 金子 修, 山本 茂2015 年 51 巻 11 号 p. 769-778
発行日: 2015年
公開日: 2015/11/21
ジャーナル フリーIn this paper, a parameter tuning of a state predictive servo system with a full state observer for linear time-delay systems is proposed within the data-driven control framework. Here, fictitious reference iterative tuning (which is abbreviated as FRIT), which is a controller parameter tuning method yielding the desirable parameter with only one-shot experimental data, is applied for the achievement of the desired tracking property. Particularly, it is also shown that the cost function to be minimized here is deeply related to the improvement of the parameter with respect to not only the desired closed loop property but also the attainment of more appropriate model of a plant. Finally, to show the validity and effectiveness of our result, a numerical example is illustrated.抄録全体を表示PDF形式でダウンロード (952K) -
荒木 卓, 川上 浩司, 平岡 敏洋2015 年 51 巻 11 号 p. 779-784
発行日: 2015年
公開日: 2015/11/21
ジャーナル フリーMost systems are designed to save users' labor and then the systems are called convenient. On the other hand, users can get subjective benefits by using certain sort of inconvenient systems. However, perceiving such benefits so vary depending on users' personalities, that comprehensive principles for designing systems with benefits of inconvenience are difficult to formulate. This paper reports an experiment that elucidates the relation between personalities and perceptions of values of inconvenience. Experimental result shows characteristic tendencies of users who appreciate beneficial inconveniences.抄録全体を表示PDF形式でダウンロード (946K) -
松尾 恒, 奈良 高明, 安藤 繁2015 年 51 巻 11 号 p. 785-793
発行日: 2015年
公開日: 2015/11/21
ジャーナル フリーThe Mathieu equation is known for its unique excitating scheme and great sensitivity to resonant conditions. However, due to the strong non-stationarity and non-linearity, its application to measurement has hardly been considered. In this paper, we formulate the Mathieu equation system based on the weighted integral method in time domain, and develop the parameter estimation method. Then, from the analysis of the statistical characteristics of the above method, we derive the optimal conditions for measuring the parameters with super-sensitivity, and propose a self-oscillatory measurement scheme in which target parameters are continuously captured in the measurable range with great sensitivity by controlling the excitation frequency toward the phase transition point of the Mathieu equation system. To verify the above, we fabricate an experimental equipment using the piezo actuator as the tension exciter of the phosphor bronze beam. We observe that the system can successfully follow the change of tension and viscous resistance with excellent sensitivity.抄録全体を表示PDF形式でダウンロード (1988K) -
岡島 寛, 一政 豪, 松永 信智2015 年 51 巻 11 号 p. 794-801
発行日: 2015年
公開日: 2015/11/21
ジャーナル フリーModel based control system design has been developed in many fields based on the dynamics of the accurate plant model. However, the desired control performance is not achieved if the modeling error is not small. To overcome this problem, we have proposed a compensator to minimize the gap between an actual plant and its nominal model. The proposed compensator is composed of its plant model and an error feedback component. It is difficult to apply the compensator for non-minimum phase plants because of its control structure. In this paper, a parallel feedforward compensator is used to overcome the non-minimum phase characteristics. The effectiveness is shown by numerical examples.抄録全体を表示PDF形式でダウンロード (2160K)
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