Patents by Inventor Andre Carvalho Bittencourt

Andre Carvalho Bittencourt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Condition monitoring of an industrial robot
    Patent number: 10539499
    Abstract: A method for detecting a fault in a robot joint includes the steps of: performing a first torque measurement at the robot joint to thereby obtain a first set of torque values; calculating a first distribution characteristic reflecting a distribution of the first set of torque values; performing a second torque measurement at the robot joint to thereby obtain a second set of torque values; calculating a second distribution characteristic reflecting a distribution of the second set of torque values; and comparing the first and the second distribution characteristics to determine whether a fault is present or not. A difference in the distributions of torque measurements is a robust fault indicator that makes use of the repetitive behavior of the system.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: January 21, 2020
    Assignee: ABB Research Ltd.
    Inventors: Shiva Sander-Tavallaey, Kari Saarinen, Hans Andersson, Andre Carvalho Bittencourt
  • Condition Monitoring Of An Industrial Robot
    Publication number: 20140222352
    Abstract: A method for detecting a fault in a robot joint includes the steps of: performing a first torque measurement at the robot joint to thereby obtain a first set of torque values; calculating a first distribution characteristic reflecting a distribution of the first set of torque values; performing a second torque measurement at the robot joint to thereby obtain a second set of torque values; calculating a second distribution characteristic reflecting a distribution of the second set of torque values; and comparing the first and the second distribution characteristics to determine whether a fault is present or not. A difference in the distributions of torque measurements is a robust fault indicator that makes use of the repetitive behavior of the system.
    Type: Application
    Filed: March 25, 2014
    Publication date: August 7, 2014
    Inventors: Shiva Sander-Tavallaey, Kari Saarinen, Hans Andersson, Andre Carvalho Bittencourt