EP1731771A3 - Verfahren zur Angabe eines Druckverlaufs - Google Patents
Verfahren zur Angabe eines Druckverlaufs Download PDFInfo
- Publication number
- EP1731771A3 EP1731771A3 EP06114249A EP06114249A EP1731771A3 EP 1731771 A3 EP1731771 A3 EP 1731771A3 EP 06114249 A EP06114249 A EP 06114249A EP 06114249 A EP06114249 A EP 06114249A EP 1731771 A3 EP1731771 A3 EP 1731771A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- time
- calculating
- real time
- pressure
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
- F15B15/2838—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT with out using position sensors, e.g. by volume flow measurement or pump speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/01—Absolute values
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Valve Device For Special Equipments (AREA)
- Measuring Fluid Pressure (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
- Berechnen eines ersten Volumenwertes der Hydraulikflüssigkeit in dem Hydrauliksystem zu einem ersten Zeitpunkt des Zeittakts in Echtzeit,
- Berechnen eines zweiten Volumenwertes der Hydraulikflüssigkeit in dem Hydrauliksystem zu einem zweiten Zeitpunkt des Zeittakts in Echtzeit,
- Berechnen eines Volumendifferenzwertes aus dem ersten Volumenwert und dem zweiten Volumenwert in Echtzeit,
- Berechnen eines Druckwertes aus dem Volumendifferenzwert unter Berücksichtigung des Zeittakts in Echtzeit.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005025879A DE102005025879A1 (de) | 2005-06-06 | 2005-06-06 | Verfahren zur Angabe eines Druckverlaufs |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1731771A2 EP1731771A2 (de) | 2006-12-13 |
EP1731771A3 true EP1731771A3 (de) | 2012-08-29 |
Family
ID=36940704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06114249A Withdrawn EP1731771A3 (de) | 2005-06-06 | 2006-05-19 | Verfahren zur Angabe eines Druckverlaufs |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1731771A3 (de) |
DE (1) | DE102005025879A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI124245B (en) * | 2012-02-16 | 2014-05-15 | Wärtsilä Finland Oy | Hydraulic valve arrangement for controlled actuation of the gas exchange valve of the reciprocating internal combustion engine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5646341A (en) * | 1995-07-28 | 1997-07-08 | Caterpillar Inc. | Apparatus and method for diagnosing an engine using an oil pressure model |
WO2003008770A1 (de) * | 2001-07-17 | 2003-01-30 | Robert Bosch Gmbh | Elektrohydraulische ventilsteuerung |
WO2003027450A1 (de) * | 2001-09-07 | 2003-04-03 | Robert Bosch Gmbh | Hydraulisch gesteuerter aktuator zur betätigung eines ventils |
US20030121501A1 (en) * | 2002-01-02 | 2003-07-03 | Barnes Travis E. | Utilization of a rail pressure predictor model in controlling a common rail fuel injection system |
WO2004092549A1 (en) * | 2003-04-15 | 2004-10-28 | Toyota Jidosha Kabushiki Kaisha | Apparatus for abnormal diagnosis of variable valve timing mechanism |
-
2005
- 2005-06-06 DE DE102005025879A patent/DE102005025879A1/de not_active Withdrawn
-
2006
- 2006-05-19 EP EP06114249A patent/EP1731771A3/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5646341A (en) * | 1995-07-28 | 1997-07-08 | Caterpillar Inc. | Apparatus and method for diagnosing an engine using an oil pressure model |
WO2003008770A1 (de) * | 2001-07-17 | 2003-01-30 | Robert Bosch Gmbh | Elektrohydraulische ventilsteuerung |
WO2003027450A1 (de) * | 2001-09-07 | 2003-04-03 | Robert Bosch Gmbh | Hydraulisch gesteuerter aktuator zur betätigung eines ventils |
US20030121501A1 (en) * | 2002-01-02 | 2003-07-03 | Barnes Travis E. | Utilization of a rail pressure predictor model in controlling a common rail fuel injection system |
WO2004092549A1 (en) * | 2003-04-15 | 2004-10-28 | Toyota Jidosha Kabushiki Kaisha | Apparatus for abnormal diagnosis of variable valve timing mechanism |
Also Published As
Publication number | Publication date |
---|---|
EP1731771A2 (de) | 2006-12-13 |
DE102005025879A1 (de) | 2006-12-07 |
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Legal Events
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RIC1 | Information provided on ipc code assigned before grant |
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