Patents by Inventor Philip Ralph Peterson

Philip Ralph Peterson 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).

  • Buffered ion sense current source in an ignition coil
    Patent number: 6741080
    Abstract: In an ignition coil assembly of an ion sensing ignition system having an ignition coil output, a buffered ion-sense current source circuit is provided and includes a current sensing circuit, the current sensing circuit being disposed so as to be communicated with the ignition coil output and an active current source circuit, the active current source circuit being disposed so as to be communicated with the current sensing circuit and a current measuring device.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: May 25, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Philip Ralph Peterson, Philip Allen Karau, Scott B. Kesler
  • Buffered ion sense current source in an ignition coil
    Publication number: 20020196024
    Abstract: In an ignition coil assembly of an ion sensing ignition system having an ignition coil output, a buffered ion-sense current source circuit is provided and includes a current sensing circuit, the current sensing circuit being disposed so as to be communicated with the ignition coil output and an active current source circuit, the active current source circuit being disposed so as to be communicated with the current sensing circuit and a current measuring device.
    Type: Application
    Filed: October 19, 2001
    Publication date: December 26, 2002
    Inventors: Philip Ralph Peterson, Philip Allen Karau, Scott B. Kesler
  • Ion sense ignition bias circuit
    Patent number: 6498490
    Abstract: Disclosed is a bias and measuring circuit that improves the ion sense measurement and ignition performance of an Ion Sense Ignition system where the ion current signal processing is implemented remote from the ignition coil. Specifically, the bias and measuring circuit of the invention reduces the effects of secondary harness capacitance on the ion current signal, minimizes the effects of harness electrical leakage and reduces the chances for “spark-on-make” (an ignition firing when the ignition coil primary is initially energized).
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: December 24, 2002
    Assignee: Delphi Technologies, Inc.
    Inventors: Philip Allen Karau, Philip Ralph Peterson
  • Ion sense ignition bias circuit
    Publication number: 20020000809
    Abstract: Disclosed is a bias and measuring circuit that improves the ion sense measurement and ignition performance of an Ion Sense Ignition system where the ion current signal processing is implemented remote from the ignition coil. Specifically, the bias and measuring circuit of the invention reduces the effects of secondary harness capacitance on the ion current signal, minimizes the effects of harness electrical leakage and reduces the chances for “spark-on-make” (an ignition firing when the ignition coil primary is initially energized).
    Type: Application
    Filed: April 30, 2001
    Publication date: January 3, 2002
    Inventors: Philip Allen Karau, Philip Ralph Peterson