Invention Grant
- Patent Title: Clutch pressure control device
- Patent Title (中): 离合器压力控制装置
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Application No.: US13259434Application Date: 2010-03-29
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Publication No.: US08577571B2Publication Date: 2013-11-05
- Inventor: Olivier Einfinger
- Applicant: Olivier Einfinger
- Applicant Address: BE Loppem
- Assignee: Hoerbiger Antriebstechnik GmbH
- Current Assignee: Hoerbiger Antriebstechnik GmbH
- Current Assignee Address: BE Loppem
- Agency: Carlson, Gaskey & Olds, PC
- Priority: EP09004468 20090327
- International Application: PCT/EP2010/001975 WO 20100329
- International Announcement: WO2010/124774 WO 20101104
- Main IPC: F16D48/06
- IPC: F16D48/06

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.
Public/Granted literature
- US20120232766A1 CLUTCH PRESSURE CONTROL DEVICE Public/Granted day:2012-09-13
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