Patents by Inventor Stefan Hoerenberg

Stefan Hoerenberg 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 testing the fuel quantity balance in a common rail system, corresponding engine control system, and corresponding diagnostic device
    Patent number: 8849547
    Abstract: In a common rail system having two electrically controlled actuating elements, e.g., a metering unit at the input side of a high-pressure pump and a pressure regulating valve on the common rail, different fuel delivery quantities are able to be set in the common rail system while the vehicle is stationary, independent of the current engine load, by controlling operating points via one of the actuating elements and subsequently regulating the other actuating element. Control currents of the actuating elements correspond to the operating points. These control currents, or differences of control currents, are compared to target values to enable an evaluation of the common rail system.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: September 30, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Michael Hackner, Stefan Hoerenberg
  • Method for testing the fuel quantity balance in a common rail system, corresponding engine control system, and corresponding diagnosti device
    Publication number: 20120239272
    Abstract: In a common rail system having two electrically controlled actuating elements, e.g., a metering unit at the input side of a high-pressure pump and a pressure regulating valve on the common rail, different fuel delivery quantities are able to be set in the common rail system while the vehicle is stationary, independent of the current engine load, by controlling operating points via one of the actuating elements and subsequently regulating the other actuating element. Control currents of the actuating elements correspond to the operating points. These control currents, or differences of control currents, are compared to target values to enable an evaluation of the common rail system.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 20, 2012
    Inventors: Michael HACKNER, Stefan Hoerenberg