The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 29, 1998
Filed:
Jan. 17, 1996
Youichi Nonaka, Fujisawa, JP;
Shiyuki Sakaue, Hiratsuka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A method and apparatus for controlling a robot which performs an operation on an object while applying any desired force to the object, and a method of controlling automobile suspensions so as to maintain the contact between the automobile and a road surface appropriately. A robot controller which controls the motion of an end effector includes a rotating body, using an external force applied to the effector. The controller beforehand measures the tensor of inertia of the rotating body, calculates the angular momentum of the rotating body on the basis of a sensed value output from a unit for sensing the rotational speed of the rotating body and the tensor of inertia of the rotating body, calculates a gyro-moment occurring in the rotating body on the basis of a sensed value output from a sensor for sensing the motion of the robot and the angular momentum of the rotating body, and uses as a control input value the external force from a sensor for sensing value minus the value of the gyro-moment. An automobile suspension is controlled by an external force applied to a wheel of the automobile, using as a control input value a sensed value output from a sensor for sensing the external force minus the value of a gyro-moment occurring in the wheel.