Patents by Inventor Armelle Petitbon

Armelle Petitbon 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).

  • Process of marking cylinders for control of an electronic injection system of an internal combustion engine
    Patent number: 5425340
    Abstract: A system for producing a signal for marking cylinders for control of a phased sequential multipoint injection in an engine including a crankshaft sensor for providing a marking of passings of a top dead center for each of the cylinders and a system for detecting combustion misfires. The system includes the following successive steps. First, injection of fuel for a predetermined reference cylinder is stopped. An occurrence of a combustion misfire for the predetermined reference cylinder is then detected. The moment of stopping of the injection and the moment of detecting the combustion misfire is then compared, and the moment of passing of the intake or firing top dead center for the predetermined reference cylinder is identified. A signal for marking cylinders in phase with the top dead center signal is then produced, initialized at the moment of passing an intake or firing top dead center of the reference cylinder and resuming the sequence of the combustions.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: June 20, 1995
    Assignee: Regie Nationale des Usines Renault S.A.
    Inventors: Armelle Petitbon, Jean-Marc Hornewer