Patents by Inventor Jim R. Switzer

Jim R. Switzer 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).

  • Fiber optically communicated motor temperature and position signals
    Patent number: 8212510
    Abstract: Methods and apparatus are provided for a controlling an electric motor that is at least partially disposed within a motor housing. The rotational speed and position of the electric motor are sensed, and a temperature of the electric motor is sensed. The sensor signals are converted to optical signals and are propagated in a fiber optic cable. The electric motor is controlled based, at least in part, on the propagated optical signals.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: July 3, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Jeremy B. Campbell, Jim R. Switzer, Steven E. Schulz
  • FIBER OPTICALLY COMMUNICATED MOTOR TEMPERATURE AND POSITION SIGNALS
    Publication number: 20110109256
    Abstract: Methods and apparatus are provided for a controlling an electric motor that is at least partially disposed within a motor housing. The rotational speed and position of the electric motor are sensed, and a temperature of the electric motor is sensed. The sensor signals are converted to optical signals and are propagated in a fiber optic cable. The electric motor is controlled based, at least in part, on the propagated optical signals.
    Type: Application
    Filed: November 9, 2009
    Publication date: May 12, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: JEREMY B. CAMPBELL, JIM R. SWITZER, STEVEN E. SCHULZ