Patents by Inventor Mark E. Bartholomew

Mark E. Bartholomew 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).

  • Systems and methods for control of transmission and/or prime mover
    Patent number: 8738255
    Abstract: Disclosed here are inventive systems and methods for a powertrain of an electric vehicle (EV). In some embodiments, said powertrain includes a continuously variable transmission (CVT) coupled to an electric drive motor, wherein a control system is configured to control the CVT and/or the drive motor to optimize various efficiencies associated with the EV and/or its subsystems. In one specific embodiment, the control system is configured to operate the EV in an economy mode. Operating in said mode, the control system simultaneously manages the CVT and the drive motor to optimize the range of the EV. The control system can be configured to manage the current provided to the drive motor, as well as adjust a transmission speed ratio of the CVT. Other modes of operation are also disclosed. The control system can be configured to manage the power to the drive motor and adjust the transmission speed ratio of the CVT taking into account battery voltage, throttle position, and transmission speed ratio, for example.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: May 27, 2014
    Assignee: Fallbrook Intellectual Property Company LLC
    Inventors: Jeremy Carter, Brad P Pohl, Loren T McDaniel, Cyril Keilers, Tim Ruggles, David Rogers, Eric Diehl, Austin Orand, Alan Mark Delz, Paul Argus Parks, Mark E Bartholomew, Christopher M Vasiliotis
  • SYSTEMS AND METHODS FOR CONTROL OF TRANSMISSION AND/OR PRIME MOVER
    Publication number: 20100131164
    Abstract: Disclosed here are inventive systems and methods for a powertrain of an electric vehicle (EV). In some embodiments, said powertrain includes a continuously variable transmission (CVT) coupled to an electric drive motor, wherein a control system is configured to control the CVT and/or the drive motor to optimize various efficiencies associated with the EV and/or its subsystems. In one specific embodiment, the control system is configured to operate the EV in an economy mode. Operating in said mode, the control system simultaneously manages the CVT and the drive motor to optimize the range of the EV. The control system can be configured to manage the current provided to the drive motor, as well as adjust a transmission speed ratio of the CVT. Other modes of operation are also disclosed. The control system can be configured to manage the power to the drive motor and adjust the transmission speed ratio of the CVT taking into account battery voltage, throttle position, and transmission speed ratio, for example.
    Type: Application
    Filed: January 31, 2008
    Publication date: May 27, 2010
    Applicant: FALLBROOK TECHNOLOGIES INC.
    Inventors: Jeremy Carter, Brad P. Pohl, Loren T. McDaniel, Cyril Keilers, Tim Ruggles, David Rogers, Eric Diehl, Austin Orand, Alan Mark Delz, Paul Argus Parks, Mark E. Bartholomew, Christopher M Vasiliotis
  • Computer housing
    Patent number: D417203
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: November 30, 1999
    Assignee: Silicon Graphics, Inc.
    Inventors: Gilbert Figueroa, Jonathan David Beck, Steven G. Siefert, Mark E. Bartholomew, Christopher N. Lenart, Robert D. Brunner, Benjamin Pei-Ming Chia, Bruno Richet, Michael Joseph Conroy
  • Computer housing
    Patent number: D431242
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: September 26, 2000
    Assignee: Silicon Graphics, Inc.
    Inventors: Brian J. Ray, Steven G. Siefert, Mark E. Bartholomew, Christopher N. Lenart, Robert D. Brunner, Benjamin Pei-Ming Chia, Colin Alexander Davis, Sung Kim, Ronald J. Smith