Patents by Inventor Kai Wollenschlager

Kai Wollenschlager 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).

  • Patent number: 9091615
    Abstract: The invention relates to a monitoring method for a control device system with several electronic control devices for driving an internal combustion engine in a motor vehicle, whereby operating variables of the individual control devices are compared with each other, in order to detect a malfunction of the control devices. It is proposed that the control devices are monitored across-the-system, by comparing the operating variables of different control devices of the control device system with one other.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: July 28, 2015
    Assignee: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Tino Kerejewski, Markus Kraus, Kai Wollenschläger
  • Patent number: 7556016
    Abstract: In order to operate an internal combustion engine, a value of an operating variable of the internal combustion engine is determined depending on at least one measured quantity of the internal combustion engine. A test is carried out to determine whether or not the value of the operating variable is plausible depending on at least one second measured quantity of the internal combustion engine. If the value of the operating variable is implausible, a test is carried out to determine whether or not the internal combustion engine is currently being operated in lean operation. If the internal combustion engine is currently being operated in lean operation, a changeover to the quasi-stoichiometric operation of the internal combustion engine is implemented. After the changeover to the quasi-stoichiometric operation, the value of the operating variable is determined anew and tested anew. A changeover to lean operation is carried out anew if the newly determined value of the operating variable is plausible.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: July 7, 2009
    Assignee: Siemens Aktiengesellschaft
    Inventors: Markus Kraus, Kai Wollenschläger
  • Publication number: 20080140280
    Abstract: The invention relates to a monitoring method for a control device system with several electronic control devices for driving an internal combustion engine in a motor vehicle, whereby operating variables of the individual control devices are compared with each other, in order to detect a malfunction of the control devices. It is proposed that the control devices are monitored across-the-system, by comparing the operating variables of different control devices of the control device system with one other.
    Type: Application
    Filed: December 6, 2007
    Publication date: June 12, 2008
    Inventors: Tino Kerejewski, Markus Kraus, Kai Wollenschlager
  • Publication number: 20070272210
    Abstract: In order to operate an internal combustion engine, a value of an operating variable of the internal combustion engine is determined depending on at least one measured quantity of the internal combustion engine. A test is carried out to determine whether or not the value of the operating variable is plausible depending on at least one second measured quantity of the internal combustion engine. If the value of the operating variable is implausible, a test is carried out to determine whether or not the internal combustion engine is currently being operated in lean operation. If the internal combustion engine is currently being operated in lean operation, a changeover to the quasi-stoichiometric operation of the internal combustion engine is implemented. After the changeover to the quasi-stoichiometric operation, the value of the operating variable is determined anew and tested anew. A changeover to lean operation is carried out anew if the newly determined value of the operating variable is plausible.
    Type: Application
    Filed: April 27, 2007
    Publication date: November 29, 2007
    Inventors: Markus Kraus, Kai Wollenschlager