Patents by Inventor Olivier Einfinger

Olivier Einfinger 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).

  • Clutch pressure control device
    Patent number: 8577571
    Abstract: A clutch pressure control device includes a request filter unit that calculates a target clutch pressure value from a requested clutch pressure value input in the request filter unit. A feedforward clutch pressure control model unit calculates, from the target clutch pressure value input by the request filter unit, a feedforward current value. A PID control unit calculates a feedback current value from a valve pressure target value for a hydraulic proportional valve controlling the clutch pressure and a feedback actual pressure value. A first calculation unit calculates a hydraulic proportional valve target current value from the input feedforward current value and the feedback current value. The device utilizes measurement methods to find values for a kisspoint pressure of the clutch, a preload pressure of the clutch, and a fill volume of the clutch.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: November 5, 2013
    Assignee: Hoerbiger Antriebstechnik GmbH
    Inventor: Olivier Einfinger
  • CLUTCH PRESSURE CONTROL DEVICE
    Publication number: 20120232766
    Abstract: A clutch pressure control device includes a request filter unit that calculates a target clutch pressure value from a requested clutch pressure value input in the request filter unit. A feedforward clutch pressure control model unit calculates, from the target clutch pressure value input by the request filter unit, a feedforward current value. A PID control unit calculates a feedback current value from a valve pressure target value for a hydraulic proportional valve controlling the clutch pressure and a feedback actual pressure value. A first calculation unit calculates a hydraulic proportional valve target current value from the input feedforward current value and the feedback current value. The device utilizes measurement methods to find values for a kisspoint pressure of the clutch, a preload pressure of the clutch, and a fill volume of the clutch.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 13, 2012
    Inventor: Olivier Einfinger