Patents by Inventor Warren R. Dedow

Warren R. Dedow 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).

  • Torque modulation shift control system and method
    Patent number: 6352492
    Abstract: A shift control system is provided that is suitable for semi-automatic transmissions in heavy duty vehicles. The torque modulation system includes logic circuitry that employs a ramping torque function or algorithm to control the acceleration of torque, both positive and negative, and/or provides a longer dwell time in the torque clutch disengagement range. Moreover, dwell time at peak is not required. A method for improving gear disengagement and shift control in accordance with the principles of the invention is also disclosed.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: March 5, 2002
    Assignee: Eaton Corporation
    Inventors: Jon A. Steeby, Warren R. Dedow, Mark A. Boardman
  • Engagement of gear ratio confirmation
    Patent number: 5974354
    Abstract: A control method/program for rapidly confirming engagement of a target gear ratio (GR.sub.T) in an automated mechanical transmission system (92) on the basis of input signals (ES, or IS, OS) indicative of transmission input shaft (18) and output shaft (58) rotational speeds.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: October 26, 1999
    Assignee: Eaton Corporation
    Inventors: Daniel P. Janecke, Jon A. Steeby, Warren R. Dedow
  • Anti-hunt logic
    Patent number: 5938711
    Abstract: An automated mechanical transmission system (92) including anti-hunt logic (FIG. 7) and logic allowing the operator to reduce or cancel the anti-hunt logic offsets by post-shift throttle pedal (THL) manipulation.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: August 17, 1999
    Assignee: Eaton Corporation
    Inventors: Jon A. Steeby, Daniel P. Janecke, Warren R. Dedow, Steven L. Melvin
  • Disengagement confirmation
    Patent number: 5846159
    Abstract: A control for confirming disengagement of a disengaging gear ratio (GR). Signals indicative of input shaft speed (ES or IS) are compared to signals indicative of output shaft rotational speed (OS) to determine if the quotient of input shaft rotational speed to output shaft rotational speed (IS/OS) remains outside an increasing-sized window (GR.+-.error, GR.+-.2*error, GR.+-.3*error).
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: December 8, 1998
    Assignee: Eaton Corporation
    Inventors: Daniel P. Janecke, Jon A. Steeby, Warren R. Dedow
  • Automode-to-neutral logic
    Patent number: 5766111
    Abstract: A partially automated mechanical transmission system (92) includes a splitter-type compound transmission (10) and controls for automating splitter shifting upon manual selection of the highest main section ratio position (ninth/tenth). Logic is provided to provide an optimized response to manual shifting into main section neutral from the highest main section ratio position.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: June 16, 1998
    Assignee: Eaton Corporation
    Inventors: Jon A. Steeby, Daniel P. Janecke, Warren R. Dedow
  • Start gear ratio control system and method utilizing the highest allowable start gear ratio
    Patent number: 5761628
    Abstract: A control system and method for controlling start-from-stop operation in an automated mechanical transmission system, including a multiple-speed change-gear transmission (10) having a lowest grouping of ratios (first-fourth) suitable for start-from-stop operation, is provided. Upon a request or requirement for a shift into a default start ratio, the system controller (106) will cause initiation of a shift into the highest gear ratio (fourth) of the lowest group of ratios.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: June 2, 1998
    Assignee: Eaton Corporation
    Inventors: Jon A. Steeby, Warren R. Dedow