Invention Grant
- Patent Title: Method for setting a predefined position of a clutch actuator which comprises a friction spring element
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Application No.: US17284802Application Date: 2019-10-22
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Publication No.: US11378143B2Publication Date: 2022-07-05
- Inventor: Erhard Hodrus
- Applicant: Schaeffler Technologies AG & Co. KG
- Applicant Address: DE Herzogenaurach
- Assignee: Schaeffler Technologies AG & Co. KG
- Current Assignee: Schaeffler Technologies AG & Co. KG
- Current Assignee Address: DE Herzogenaurach
- Priority: DE102018127641.9 20181106
- International Application: PCT/DE2019/100919 WO 20191022
- International Announcement: WO2020/094180 WO 20200514
- Main IPC: F16D48/06
- IPC: F16D48/06 ; F16D23/12

Abstract:
A method sets a predefined position of a clutch actuator comprising a friction spring element. An activation path of the clutch actuator that actuates the clutch is predefined by a coupling torque via a coupling characteristic curve, wherein the predefined position (zo, zu) to be assumed by the clutch actuator is set by a closed-loop controller. To enable the predefined position of the clutch actuator to be set precisely without using additional energy, the predefined position (zo, zu) is corrected by a turning back value (ro, ru) of the friction spring element and the corrected position (zo+ro; zu−ru) of the clutch actuator is approached by the closed-loop controller. After reaching the corrected position (zo+ro; zu−ru) the closed-loop controller is switched off by dissipating the potential energy stored in the friction spring element.
Public/Granted literature
- US20210341023A1 METHOD FOR SETTING A PREDEFINED POSITION OF A CLUTCH ACTUATOR WHICH COMPRISES A FRICTION SPRING ELEMENT Public/Granted day:2021-11-04
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