Patents by Inventor Michael LINDENSTRUTH

Michael LINDENSTRUTH 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).

  • Digital controller for an automotive steering test rig
    Patent number: 8768641
    Abstract: A digital control system for performing a durability test with a steering test rig is disclosed. The digital control system comprises a learning control device for controlling periodic reference signals in servo actuator systems, such as hydraulic cylinders and electrical motors. This learning device is referred to as POISON (periodic on-line iterative signal optimum navigation) controller. By iterative learning of a corrected reference signal, the POISON controller is able to compensate for control errors which occur in conventional closed loop control systems. In contrast to existing control systems, the POISON controller is capable of permanent online operation. Therefore it is able to compensate for certain changes in the controlled system. The POISON controller can easily be added to existing servo control loops.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: July 1, 2014
    Assignee: GM Global Technology Operations LLC
    Inventor: Michael Lindenstruth
  • Learning controller for the compensation of torque pulsations in a steering assembly
    Patent number: 8589030
    Abstract: A control device for controlling an electric steering assembly is provided to reduce torque pulsations in the steering assembly. The control device comprises a learning control device for the suppression of periodic disturbances in a steering assembly. The learning control device is referred to as POISON (periodic on-line iterative signal optimum navigation) controller. By iterative learning of a corrected reference signal the POISON controller is able to compensate for control errors which occur in conventional closed loop control systems. The POISON controller is capable of permanent online operation. Therefore it is able to compensate for certain changes in the controlled system. The POISON controller can easily be added to existing power steering control loops.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: November 19, 2013
    Assignee: GM Global Technology Operations LLC
    Inventor: Michael Lindenstruth
  • DIGITAL CONTROLLER FOR AN AUTOMOTIVE STEERING TEST RIG
    Publication number: 20110125450
    Abstract: A digital control system for performing a durability test with a steering test rig is disclosed. The digital control system comprises a learning control device for controlling periodic reference signals in servo actuator systems, such as hydraulic cylinders and electrical motors. This learning device is referred to as POISON (periodic on-line iterative signal optimum navigation) controller. By iterative learning of a corrected reference signal, the POISON controller is able to compensate for control errors which occur in conventional closed loop control systems. In contrast to existing control systems, the POISON controller is capable of permanent online operation. Therefore it is able to compensate for certain changes in the controlled system. The POISON controller can easily be added to existing servo control loops.
    Type: Application
    Filed: May 6, 2009
    Publication date: May 26, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventor: Michael Lindenstruth
  • LEARNING CONTROLLER FOR THE COMPENSATION OF TORQUE PULSATIONS IN A STEERING ASSEMBLY
    Publication number: 20100211263
    Abstract: A control device for controlling an electric steering assembly is provided to reduce torque pulsations in the steering assembly. The control device comprises a learning control device for the suppression of periodic disturbances in a steering assembly. The learning control device is referred to as POISON (periodic on-line iterative signal optimum navigation) controller. By iterative learning of a corrected reference signal the POISON controller is able to compensate for control errors which occur in conventional closed loop control systems. The POISON controller is capable of permanent online operation. Therefore it is able to compensate for certain changes in the controlled system. The POISON controller can easily be added to existing power steering control loops.
    Type: Application
    Filed: February 11, 2010
    Publication date: August 19, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventor: Michael LINDENSTRUTH