Patents by Inventor Pierre Claude Longuemare

Pierre Claude Longuemare 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: 7475760
    Abstract: The invention provides an electric brake system and method. The electric brake system includes an electric motor having a portion moveable along a path between a plurality of positions for moving a brake pad and applying a selectable amount of braking force on a brake rotor. One of the plurality of positions is a minimal contact position. The minimal contact position is operable to change among the plurality of positions over time. The electric brake system also includes an electric controller for controlling the electric motor to move the portion along the path between the minimal contact position and at least one other of the plurality of positions for moving the brake pad and for selecting the amount of braking force. The electric brake system also includes at least one sensor for sensing at least one of motor current, motor acceleration, controller voltage, motor speed, motor voltage, and motor temperature, and communicating a sensed condition to the controller.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: January 13, 2009
    Assignee: Delphi Technologies, Inc.
    Inventors: Pierre Claude Longuemare, Paul Marie Degoul, Jon T. Zumberge, Bryan P. Riddiford
  • Publication number: 20080222964
    Abstract: The invention relates to a method of actuating a door, in particular of a motor vehicle, wherein an electric drive motor coupled to the door is controlled by a motor control on a manual actuation of the door such that the drive motor exerts a force onto the door by which a system-inherent force countering the manual actuation is at least partly compensated. The invention also relates to an apparatus for the carrying out of a method of this type.
    Type: Application
    Filed: March 10, 2008
    Publication date: September 18, 2008
    Inventors: Pierre Claude Longuemare, Oliver Benthaus, Werner Amshoff
  • Patent number: 6401879
    Abstract: The electric park brake of the present invention includes an electric caliper motor assembly. The electric caliper motor assembly includes a motor, which is operably coupled to a shaft. The motor and shaft are surrounded by a housing. A friction wheel is disposed axially and operably connected to the shaft within the housing. A park brake motor is disposed within a second housing. The second housing is connected to the first housing and positioned laterally in relation to the shaft. An acme screw is operably coupled to the park brake motor wherein the acme screw interacts with an acme nut. A lever is in juxtaposition to the acme nut and friction wheel. The lever is angularly displaced by the acme screw interacting with the acme nut to frictionally interact with the friction wheel when the park brake motor is activated. This provides a park brake feature and prevents movement of the shaft.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: June 11, 2002
    Assignee: Delphi Technologies, Inc.
    Inventors: David B. Drennen, Patrick A. Mescher, Pierre Claude Longuemare, Harald Klode