Patents by Inventor Karl Barnreiter

Karl Barnreiter 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: 6205887
    Abstract: The present invention is related to an automatic transmission for a vehicle with an electrohydraulic control. More particularly, the hydraulic control unit and the electronic control unit are mounted adjacent relative to each other on a flange at an end of the transmission.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: March 27, 2001
    Assignee: Audi AG
    Inventors: Karl Barnreiter, Hans-Peter Fleischmann, Johann Markl, Thomas Suchandt
  • Patent number: 6189396
    Abstract: The invention concerns a control arrangement for an automatic electrohydraulically controlled transmission. In order to reduce expenditure on parts and assembly, the hydraulic control system and electronic control system are mounted directly adjacent each other and plug-in connections are provided between the solenoid valves of the hydraulic control system and the electronic control system. The hydraulic control system (20) substantially comprises two duct panels (28,30) in which control ducts, piston slides and solenoid valves (not shown) are disposed for controlling the conical plates and couplings of the transmission. The pressurized hydraulic fluid is fed directly into these duct panels from the pump (29). The electronic control system (22) has a single central connection (36) which is secured in the transmission housing cover (42) by an annular seal. Rotational speed sensors for the transmission shafts and temperature and pressure sensors are integrated into the control unit.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: February 20, 2001
    Assignee: Audi AG
    Inventors: Karl Barnreiter, Hans-Peter Fleischmann, Johann Markl, Hans-Jurgen Rudolph, Michael Genzel, Roger Pohlmann, Armin Gottschaller, Thomas Schmid, Werner Flierl