WO2004063590A1 - Clutch actuating systems - Google Patents
Clutch actuating systems Download PDFInfo
- Publication number
- WO2004063590A1 WO2004063590A1 PCT/IB2003/006347 IB0306347W WO2004063590A1 WO 2004063590 A1 WO2004063590 A1 WO 2004063590A1 IB 0306347 W IB0306347 W IB 0306347W WO 2004063590 A1 WO2004063590 A1 WO 2004063590A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- actuator
- clutch
- signal
- vibration
- processing means
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/30—Signal inputs
- F16D2500/302—Signal inputs from the actuator
- F16D2500/3026—Stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/502—Relating the clutch
- F16D2500/5023—Determination of the clutch wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/502—Relating the clutch
- F16D2500/50293—Reduction of vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/506—Relating the transmission
- F16D2500/5063—Shaft dither, i.e. applying a pulsating torque to a (transmission) shaft to create a buzz or dither, e.g. to prevent tooth butting or gear locking
Definitions
- This invention relates to actuating systems for vehicle clutches.
- a clutch actuating system which includes a clutch actuator, sensing means associated with the actuator which generates a signal representative of the vibration of the actuator, processing means for receiving said vibration signal and providing an output signal which is phased shifted relative to said vibration signal, and vibrating means for vibrating said actuator in accordance with said phase shifted output signal to tend to nullify the effect of said sensed vibration.
- the actuating system may be hydraulically actuated in which, for example a master cylinder is connected with a slave cylinder by conduit means and the sensing means generates a signal representative of the vibration of the slave cylinder, in such an arrangement a diaphragm or piston exposed to the hydraulic pressure of the system maybe vibrated in accordance with the phase shifting output signal of the processing means.
- the actuator may be a cable actuator or an electrical actuator (for example electric motor operated screw device) and the phase shifted output signal from the processing means may be applied electrically to the actuator.
- an electrical actuator for example electric motor operated screw device
- the invention is equally applicable to clutch actuating systems which are operated by a vehicle driver through, for example, a conventional pedal or to systems which are automatically operated and which, for example, form part of an automated manual transmission.
- the present invention also provides a clutch actuating system which includes a clutch actuator, sensing means associated with the actuator which generates a signal representative of the axial position of the actuator relative to an actuating member of the associated clutch, processing means for receiving said position signal and calculating from said position of the actuator when the actuator is in a non-operational (i.e. in its rest or clutch engaged position) diagnostic parameters such as the wear condition of the clutch.
- the invention also provides a method of damping vibrations in a clutch actuating system comprising:-
- the clutch actuating system comprises a master cylinder 10 operated by a pedal 11 and connected with a concentric slave cylinder 12 via a conduit 13.
- the concentric slave cylinder includes a piston 14 which moves an associated clutch release bearing 15 to displace a clutch clamping diaphragm spring 16 in a conventional manner to release the contact pressure between the clutch pressure plate 17 and the clutch driven plate 18.
- the pedal 11 is depressed which operates master cylinder 10 to actuate concentric slave cylinder 12 and unclamp the clutch.
- the concentric slave cylinder 12 is provided with a position sensing means 19 which may be of any suitable form.
- a Hall Effect type sensor is particularly suitable since it provides a convenient electrical output signal.
- the sensor comprises a stationary sensor part 20 which forms part of the housing of the concentric slave cylinder and a movable part 21 which comprises, for example, a magnet which is either mounted on the piston 14 or the associated release bearing 15.
- the Hall Effect sensor arrangement described in the Applicant's co-pending UK Patent Application No 03 00514.7 is particularly suitable for use with the present invention.
- sensing means 19 With axial movement of the release bearing 15 relative to the housing of the concentric slave cylinder is sensed by sensing means 19 and the output of sensing means 19 is shown diagrammatically at A in the drawing.
- This output is fed via a connection 23 to a processing means 24 having an output connection 25 which is connected with an electrical oscillator 26 which oscillates a diaphragm or piston 27 which is connected with conduit 13.
- the output signal from processing means 24 present in output connection 25 is arranged to be 180° out of phase with the input signal into processing means 24 from the connection 23.
- the oscillator 26 oscillates diaphragm/piston 27 in accordance with output signal in line 25 thus producing an oscillation in the conduit 13 which is 180° out of phase with any hydraulic oscillation coming from vibration of the release bearing 15 caused by vibrations applied thereto by the clutch, engine or driveline etc.
- This phase shifted signal arrangement is shown diagrammatically at B in the drawing.
- the pulsations in conduit 13 caused by vibration of release bearing 15 are nullified to provide a relatively vibration free column of fluid in conduit 13 as indicated diagrammatically at C in the drawing.
- sensing means 19 measures the position of the release bearing relative to the housing of the concentric slave cylinder in a continuous manner the position signals from sensing means 19 can be processed within processing means 24 to provide an indication as to the rest position of release bearing 15 when the actuator 12 is not operated.
- processing means 24 can provide diagnostic information indicative of the wear condition of the clutch based on the rest (non-actuated) position of release bearing 15. This diagnostic information can be obtained by connecting a suitable monitor to an output port of processing means 24 shown diagrammatically at 28 in the drawing.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003288473A AU2003288473A1 (en) | 2003-01-10 | 2003-12-29 | Clutch actuating systems |
DE2003194027 DE10394027T8 (en) | 2003-01-10 | 2003-12-29 | Clutch actuation systems |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0300515.4 | 2003-01-10 | ||
GBGB0300515.4A GB0300515D0 (en) | 2003-01-10 | 2003-01-10 | Clutch actuating systems |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004063590A1 true WO2004063590A1 (en) | 2004-07-29 |
Family
ID=9950907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2003/006347 WO2004063590A1 (en) | 2003-01-10 | 2003-12-29 | Clutch actuating systems |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU2003288473A1 (en) |
DE (1) | DE10394027T8 (en) |
GB (1) | GB0300515D0 (en) |
WO (1) | WO2004063590A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1707838A1 (en) * | 2005-03-31 | 2006-10-04 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Clutch actuation device |
WO2007128690A1 (en) * | 2006-05-10 | 2007-11-15 | Zf Friedrichshafen Ag | Method for activating an actuating means |
CN113447265A (en) * | 2020-03-25 | 2021-09-28 | 弗兰德有限公司 | Coupling and method for contactless detection of wear of a coupling |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0320261A1 (en) * | 1987-12-11 | 1989-06-14 | Isuzu Motors Limited | Automatic clutch control apparatus |
US5993355A (en) * | 1994-09-23 | 1999-11-30 | Kongsberg Techmatic Uk Limited | Control system for an automatically actuated clutch |
DE19919303A1 (en) * | 1999-04-28 | 2000-11-02 | Mannesmann Sachs Ag | Friction clutch operation system is based on engagement and disengagement and slipping values and their mismatch signalled to clutch actuator via sensor and controller. |
DE10041387A1 (en) * | 2000-08-23 | 2002-03-07 | Daimler Chrysler Ag | Drive train for motor vehicle has automated frictional clutch with pulse frequency superimposed when engaging/disengaging; pulse amplitude reduces as engagement progresses |
EP1279851A2 (en) * | 2001-07-26 | 2003-01-29 | Siemens Aktiengesellschaft | Method for controlling an automatic motor vehicle clutch |
DE10232490A1 (en) * | 2001-07-23 | 2003-02-06 | Luk Lamellen & Kupplungsbau | Measurement of nominal idling speed includes measurement of real speed, and iterative calculation based on engine operating conditions |
FR2828916A1 (en) * | 2001-08-24 | 2003-02-28 | Luk Lamellen & Kupplungsbau | DRIVE LINE |
-
2003
- 2003-01-10 GB GBGB0300515.4A patent/GB0300515D0/en not_active Ceased
- 2003-12-29 DE DE2003194027 patent/DE10394027T8/en not_active Expired - Fee Related
- 2003-12-29 AU AU2003288473A patent/AU2003288473A1/en not_active Abandoned
- 2003-12-29 WO PCT/IB2003/006347 patent/WO2004063590A1/en not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0320261A1 (en) * | 1987-12-11 | 1989-06-14 | Isuzu Motors Limited | Automatic clutch control apparatus |
US5993355A (en) * | 1994-09-23 | 1999-11-30 | Kongsberg Techmatic Uk Limited | Control system for an automatically actuated clutch |
DE19919303A1 (en) * | 1999-04-28 | 2000-11-02 | Mannesmann Sachs Ag | Friction clutch operation system is based on engagement and disengagement and slipping values and their mismatch signalled to clutch actuator via sensor and controller. |
DE10041387A1 (en) * | 2000-08-23 | 2002-03-07 | Daimler Chrysler Ag | Drive train for motor vehicle has automated frictional clutch with pulse frequency superimposed when engaging/disengaging; pulse amplitude reduces as engagement progresses |
DE10232490A1 (en) * | 2001-07-23 | 2003-02-06 | Luk Lamellen & Kupplungsbau | Measurement of nominal idling speed includes measurement of real speed, and iterative calculation based on engine operating conditions |
EP1279851A2 (en) * | 2001-07-26 | 2003-01-29 | Siemens Aktiengesellschaft | Method for controlling an automatic motor vehicle clutch |
FR2828916A1 (en) * | 2001-08-24 | 2003-02-28 | Luk Lamellen & Kupplungsbau | DRIVE LINE |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1707838A1 (en) * | 2005-03-31 | 2006-10-04 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Clutch actuation device |
WO2007128690A1 (en) * | 2006-05-10 | 2007-11-15 | Zf Friedrichshafen Ag | Method for activating an actuating means |
US8056332B2 (en) | 2006-05-10 | 2011-11-15 | Zf Friedrichshafen Ag | Method for activating an actuating means |
CN113447265A (en) * | 2020-03-25 | 2021-09-28 | 弗兰德有限公司 | Coupling and method for contactless detection of wear of a coupling |
US11421746B2 (en) * | 2020-03-25 | 2022-08-23 | Flender Gmbh | Clutch and method for contactless detection of wear on the clutch |
CN113447265B (en) * | 2020-03-25 | 2023-11-28 | 弗兰德有限公司 | Coupling and method for contactless detection of coupling wear |
Also Published As
Publication number | Publication date |
---|---|
DE10394027T5 (en) | 2006-02-02 |
DE10394027T8 (en) | 2006-08-24 |
AU2003288473A1 (en) | 2004-08-10 |
GB0300515D0 (en) | 2003-02-12 |
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