Control device for link mechanism
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United States of America Patent
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Apr 12, 2016
Grant Date -
Jun 26, 2014
app pub date -
Oct 31, 2013
filing date -
Dec 21, 2012
priority date (Note) -
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Abstract
Provided is a control device for a link mechanism capable of preventing a damage of joint mechanisms even in the case of a collision of a movable part against an external object. The control device 30 includes: a characteristic determination unit 34 which determines desired stiffness k_cmd_i of an elastic element 5 of each joint mechanism Ji so as to be within a range of first stiffness k1_i wherein the joint maximum elastic energy is equal to or more than joint collision kinetic energy to second stiffness k2_i wherein a first time is equal to or longer than a second time; and a characteristic control unit 35 which controls stiffness k_i of the elastic element 5 of each joint mechanism Ji to be the desired stiffness k_cmd_i.
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