Patents by Inventor Guenter Scheid

Guenter Scheid 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).

  • Method for monitoring the functional capability of an exhaust gas sensor-heater
    Patent number: 5811661
    Abstract: During lean operation of the internal combustion engine, preferably in relatively long-lasting overrunning shutoff phases, the output voltage of the sensor signal is regulated to a predetermined desired value via the heating control unit. If within the diagnosis period, fewer than a predeterminable number of monitoring results are within a tolerance range located around the desired value, then the heating circuit is classified as defective.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: September 22, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventors: Guenter Scheid, Stefan Treinies, Manfred Wier