Patents by Inventor Harald Sölter

Harald Sölter 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 and device for monitoring and/or determining motor oil quality
    Patent number: 6732572
    Abstract: The present invention provides a method and device for determining the viscosity of motor oil in an internal combustion engine comprising: measuring frictional torque of the engine based on engine data, such as, the clutch switch signal which shows whether the clutch is engaged transmitting torque to the drive train; a generator load signal, a starter load signal, acceleration power consumption, and the like.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: May 11, 2004
    Assignee: Volkswagen AG
    Inventors: Detlef Pickert, Volker Schumacher, Harald Sölter, Martin Völtz