Patents by Inventor David Zwetz

David Zwetz 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).

  • Publication number: 20060000442
    Abstract: A engine control system and a method of controlling a torque output of an internal combustion engine is disclosed. The engine control system comprises a torque receiving device operably connected to the engine, a sensor to sense an engine parameter, and an electronic device operably connected to the sensor. The electronic sensor is operable to determine a second engine speed from sensed engine parameters, a droop speed, and a selected one of a plurality of torque maps requiring a minimum amount of fuel. The electronic sensor is also operable to transmit a signal indicative of the second engine speed to a fuel system to control the amount of fuel delivered to the engine.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 5, 2006
    Inventors: Douglas Carlton, Kevin Hagenauer, Christopher Wichael, David Zwetz
  • Publication number: 20050134115
    Abstract: Methods and systems may provide theft protection in one or more work machines. Methods and systems may control one or more operational systems and may provide and manage varying levels of access to work machines. Methods and systems may react to override attempts in order to provide robust theft protection. One or more control modules embedded in a work machine may be leveraged to perform theft protection services. Methods and systems may activate a first control module to restrict access to a first operational system in a work machine and activate a second control module to restrict access to a second operational system in the work machine. The first control module may detect a substitution of a new control module for the second control module and automatically configure the new control module to restrict access to the second operational system in the work machine.
    Type: Application
    Filed: December 23, 2003
    Publication date: June 23, 2005
    Inventors: Edward Betts, Timothy Booth, Roy Fonseca, Mark Hilbert, Daniel Swords, Nathan Taylor, David Zwetz
  • Publication number: 20050032605
    Abstract: A method and apparatus for controlling an amount of engagement of a clutch with a transmission. The method and apparatus includes selecting an engagement parameter, determining a desired operating parameter associated with the engagement parameter, and calibrating a control system to generate an engagement control signal to achieve the engagement parameter based on the desired operating parameter.
    Type: Application
    Filed: August 7, 2003
    Publication date: February 10, 2005
    Inventors: Timothy Booth, David Zwetz, Gregory Hasler