Patents by Inventor Janet M. Koch

Janet M. Koch 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).

  • Engine idle speed control with feedforward power adjustment
    Patent number: 4724810
    Abstract: A feedforward throttle adjustment for a closed loop idle speed control provides engine power output required to drive a variable power steering load while maintaining the engine idle speed in a desired range. The working pressure of the power steering system is detected, and the change in such pressure in the course of a steering maneuver is used to initiate an increase in the engine power output setting. The increase is determined in relation to the peak pressure change; it is implemented at a pedetermined rate, and is subject to interruption whenever the pressure change indicates that the steering maneuver has ended.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: February 16, 1988
    Assignee: General Motors Corporation
    Inventors: David C. Poirier, Grant W. Brady, Robert C. Simon, Janet M. Koch, Peter M. Medich, Richard A. Marsh