Robot control with improved safety

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United States of America Patent

PATENT NO 9914216
SERIAL NO

14441349

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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For controlling a robot in a safe way, a highest voltage required for a desired robot movement is calculated. A voltage level in a DC-bus is set on the basis of the highest voltage, and current is supplied to a motor at a robot axis from the DC-bus. By limiting the voltage level in the DC-bus to correspond to an actual need for a desired robot movement at each instant unnecessary fast robot movements are prevented even in the event that an inverter controlling motor currents would by mistake attempt to drive the motor faster than desired by the operator.

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Patent Owner(s)

  • ABB SCHWEIZ AG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jonsson, Ingvar Västerås, SE 9 88

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