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:
Jun. 20, 1995
Filed:
Feb. 25, 1993
Nobuaki Ozawa, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A system for controlling the locomotion of a biped walking robot by absorbing the footfall impact such that the robot walks stably. In advance, constraint conditions for the robot such as a coordinates position of the robot's center of gravity for the robot to assume a predetermined attitude are preestablished and in walking, robot's joint angles are determined inverse kinematically from the preestablished attitude constraint conditions. The ground reaction force generated at the footfall is detected and a correction amount required for shifting the center of gravity in the impact force absorbing direction is calculated. The attitude constraint conditions are recalculated in response to the correction amount and then the robot's joint angles are recalculated from the corrected attitude constraint conditions in three-dimensional, or at least in one of two-dimensional planes. Instead of the center of gravity, the robot's hip section can be used.