Dead time estimation device and test device including the same
AssigneeSinfonia Technology Co., Ltd.
InventorYoji Masui
Life of this patent
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Abstract
A dead time estimation device capable of accurately estimating a dead time in a control system is provided. A dead time estimation device 6 includes a dead time calculation section 64 configured to obtain a dead time L{circumflex over ( )}′1 with which an evaluation function J in Equation (1) is at minimum [Equation 7] J=∫|Ĝ/e−{circumflex over (L)}′1s−Ĝ′|df (1) where G{circumflex over ( )}/e−L∧′1s is a frequency characteristic of an element from which a dead time element is removed from a transfer function of a control target P and G{circumflex over ( )}′ is a transfer function not including the dead time element in the control target P.
Claims7
A dead time estimation device that estimates a dead time in a control target, the dead time estimation device comprising:
- a dead time calculation section configured to obtain a dead time L{circumflex over ( )}′1 with which an evaluation function J in Equation (1) is at minimum, wherein
- the dead time estimation device satisfies:
- [Equation 6]
- J=∫|Ĝ/e−{circumflex over (L)}′1s−Ĝ′|df (1)
- where G{circumflex over ( )}/e−L∧′1s is a frequency characteristic of an element from which a dead time element is removed from a transfer function of the control target and G{circumflex over ( )}′ is a transfer function not including the dead time element in the control target.
Dependencies are inferred from the claim text.