Patents by Inventor Lary J. Brackney

Lary J. Brackney 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).

  • System for decoupling EGR flow and turbocharger swallowing capacity/efficiency control mechanisms
    Patent number: 6408834
    Abstract: A system for decoupling EGR flow and turbocharger swallowing capacity/efficiency control mechanisms includes a multiple-input multiple-output (MIMO) transform manager coupled to one or more of an EGR valve, an exhaust throttle and a variable geometry turbocharger (VGT) actuator of an internal combustion engine. The MIMO transform manager is responsive to commanded charge flow and EGR fraction parameters to decouple the EGR/exhaust throttle and VGT control parameters such that these control mechanisms may be controlled individually and independently of each other. One transform output is provided to a first compensator for controlling EGR flow and/or exhaust throttle operation as a function of charge flow error. The other transform output is provided to a second independent compensator for controlling VGT operation also as a function of charge flow error.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: June 25, 2002
    Assignee: Cummins, Inc.
    Inventors: Lary J. Brackney, Thomas A. Dollmeyer, Paul R. Miller, Chuan He