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Emerald Group Publishing Limited
Copyright © 2004, Emerald Group Publishing Limited
Keywords: Patents, Robots, Controller
Applicant: Matsushita Electric Industrial Co., Ltd, JapanPatent number: US6,684,131Publication date: 27 January 2004Title: Device and Method for Controlling Robot
A robot controller capable of driving joint axes at a steady velocity, offering an efficient tact time during operation is described. The robot controller stores a series of movement data formed of the amount of movement and the time required for movement; checks whether a movement of a robot has acceleration exceeding a predetermined level according to the stored movement data; increases the time for movement of the corresponding movement data, the preceding data, and the following data, if the movement has acceleration exceeding the permissible level; and controls the robot on the basis of the time-increased movement data. By selectively performing the steps, the movement having an acceleration exceeding the permissible level is slowed down, resulting in a reduction of undesired change in an acceleration of the joint axes.