EP1656274A1 - Hydraulisches antriebssystem fü r abdeckungen von fahrzeugöffnungen - Google Patents
Hydraulisches antriebssystem fü r abdeckungen von fahrzeugöffnungenInfo
- Publication number
- EP1656274A1 EP1656274A1 EP04763717A EP04763717A EP1656274A1 EP 1656274 A1 EP1656274 A1 EP 1656274A1 EP 04763717 A EP04763717 A EP 04763717A EP 04763717 A EP04763717 A EP 04763717A EP 1656274 A1 EP1656274 A1 EP 1656274A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- volume flow
- actuator
- roof
- drive system
- hydraulic drive
- 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.)
- Granted
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
- F15B15/26—Locking mechanisms
- F15B15/262—Locking mechanisms using friction, e.g. brake pads
-
- 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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/046—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member
-
- 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
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
- F15B9/03—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type with electrical control means
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/32—Directional control characterised by the type of actuation
- F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/632—Electronic controllers using input signals representing a flow rate
- F15B2211/6326—Electronic controllers using input signals representing a flow rate the flow rate being an output member flow rate
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6336—Electronic controllers using input signals representing a state of the output member, e.g. position, speed or acceleration
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6654—Flow rate control
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6656—Closed loop control, i.e. control using feedback
Definitions
- the invention relates to a hydraulic drive system for covers for vehicle openings, in particular for roofs of vehicles with an opening structure, according to the preamble of claim 1.
- a hydraulic drive system of the aforementioned type is known for adjustable vehicle roofs, in which a rotary drive is assigned to the roof kinematics in the body-side linkage.
- this rotary drive comprises a hydraulic cylinder, the piston rod of which engages on the output side via an associated toothing in a drive pinion which is connected to the roof kinematics in a rotationally fixed manner.
- the actuating path of the actuator correlates with the position of the roof or roof part that can be adjusted via the roof kinematics, so that the respective roof or roof part position can be detected by sensory detection of the actuating path of the actuator.
- part of the rotational drive means makes it possible, at each stage of Matter Entitiesbewe- of the roof or roof part narrowing between the closed and deposited position, to determine the exact roof or roof part position and thus also by influencing the actuator to influence the adjustment movement of the roof or roof part, in particular its adjustment speed over the adjustment path. Fluctuations in speed, such as factors that influence the smooth running of the system, and above all fluctuations in the coefficient of friction, are not taken into account, so that especially in multi-part roof systems with several independently driven roof parts with the tight tolerances in their movement that have to be observed Difficulties may arise.
- the invention has for its object to provide a hydraulic drive system of the type mentioned in such a way that the roof and / or the roof parts individually and in relation to each other in their movement sequence almost exactly the specifications, d. H. with negligible tolerances.
- the volume flow control provided according to the invention can be achieved in a simple manner and using marketable units by detecting the actual value of the volume flow supplied to the actuator via a volume flow sensor, comparing it with the volume flow specified via the actuating path of the actuator as the setpoint value, and using a controller in the sense a correction of the actual value is processed, that is to say the volume flow is changed such that the actual value corresponds to the target value.
- this can be done by adapting the delivery rate to the setpoint value by changing the pump speed and / or changing the pump volume when the pump is provided as the volume flow source.
- the processing of the actual values measured in the feed to the respective actuator via a respective volume flow sensor is expediently carried out in a controller by, based on the respective number of actuators or the roof parts acted upon via them, in a corresponding assignment of the volume flow over the actuating path as a setpoint z.
- B. is stored in characteristic curves or maps.
- 1 shows an actuator in the exemplary embodiment as a double-acting actuating cylinder 2
- Sen piston rod 3 is in a drive connection, not shown, for example to a pinion which is associated with a shaft connected in a rotationally fixed manner to a drive link of a roof kinematics of the roof, so that the adjustment carried out by the actuator 1 causes the roof or the kinematics to carry the roof Roof part is adjustable.
- DE 101 49 228 A shows a solution in this regard, for example.
- the actuator 1 can also be provided for the adjustment of two or more roof parts against one another in the kinematic connection of these roof parts or as a drive between them.
- the actuator 1 can be designed as a rotary actuator.
- the actuator 1 is, as explained, in a mechanical positive connection to the roof or roof part to be adjusted and it is accordingly, based on the exemplary embodiment, the particular position of the roof or roof part connected to the piston rod 3 assigned a specific position of the roof or roof part , Accordingly, the corresponding position of the roof or the roof part can be detected by detecting the position of the piston rod 3 relative to the actuating cylinder 2 or to another corresponding fixed point.
- the position of the actuator corresponding to the position of the roof or of the respective roof part is detected via its measuring path via a measuring system 4, which is illustrated, symbolically, working with a resistance measuring device 5, which connects a coil 6 and one that is fixed in position to the piston rod 3 Grinding body 7 includes.
- the measuring system 4 is connected to the controller 8, via which the volume flow source 9 is controlled.
- the volume flow source 9 can be formed, for example, by a hydraulic pump 10 and a downstream 3/4-way valve 11, which acts as a proportional valve is formed and, according to its control, acts on the actuating cylinder 2 via lines 12 or 13 in the sense of extending or retracting the piston rod 3.
- the line 12 opens onto the working space 14 of the actuating cylinder 2 remote from the piston rod 3 and a volume flow sensor 15 of known construction is arranged in the line 12.
- a volume flow sensor 15 of known construction is offered, for example, by IPM-Hydraulik für and detect the volume flow as a variable which is directly proportional to the opening stroke of an actuating cylinder and which is supplied to the controller 8 as an actual value of the volume flow in the drive system according to the invention.
- the setpoint of the volume flow which corresponds to the desired adjustment speed for the respective roof or the respective roof part when the roof moves, is recorded in the controller 8 and is compared to the actual value of the volume flow, which is fed to the controller 8 as measured by the volume flow sensor 15, adjusted. Taking into account the actual setpoint deviation, the volume flow source 9 is actuated so that an actuation corresponding to the predetermined setpoint is ensured for the actuator 1 and the roof or the mutually adjustable roof parts are moved in a correspondingly positional position to one another or to the delimiting body parts.
- the solution according to the invention makes it possible to control the roof or the roof parts in terms of their adjustment speed relative to the body or against one another in a position-dependent manner, for example to move more slowly towards the end positions and faster over adjustment distances in between.
- high adjustment speeds can be achieved for the roof or the roof parts, which in safety-relevant positions be greatly reduced to minimize the risk of trapping for vehicle occupants, etc.
- controller 8 the respectively predefined actuating speed can be stored over the respective adjustment path, as indicated, as a characteristic curve or in characteristic maps, so that a desired positionally accurate control is possible both for an overall roof and for the roof parts of a segmented roof with corresponding separate drives.
- the volume flow source which is only indicated schematically, in conjunction with a structure comprising pump 10 and proportional valve 11, enables the required supply of the desired and required volume flow in a simple manner.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10338551A DE10338551B3 (de) | 2003-08-19 | 2003-08-19 | Hydraulisches Antriebssystem für Dächer von Fahrzeugen |
PCT/EP2004/008649 WO2005018972A1 (de) | 2003-08-19 | 2004-08-02 | Hydraulisches antriebssystem für abdeckungen von fahrzeugöffnungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1656274A1 true EP1656274A1 (de) | 2006-05-17 |
EP1656274B1 EP1656274B1 (de) | 2007-11-21 |
Family
ID=34201820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04763717A Expired - Fee Related EP1656274B1 (de) | 2003-08-19 | 2004-08-02 | Hydraulisches antriebssystem fü r abdeckungen von fahrzeugöffnungen |
Country Status (4)
Country | Link |
---|---|
US (1) | US7185939B2 (de) |
EP (1) | EP1656274B1 (de) |
DE (2) | DE10338551B3 (de) |
WO (1) | WO2005018972A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004013229A1 (de) * | 2004-03-18 | 2005-10-06 | Bayerische Motoren Werke Ag | Steuerverfahren und Steuervorrichtung für Kraftfahrzeuge mit einem aufklappbaren Dach |
DE102006029686A1 (de) * | 2006-06-28 | 2008-01-03 | Wilhelm Karmann Gmbh | Verfahren und Vorrichtung zum Betrieb eines Cabrioletverdecks |
DE102007020720A1 (de) * | 2007-05-03 | 2008-11-06 | Wilhelm Karmann Gmbh | Antriebssystem eines Verdecks eines Cabriolet-Fahrzeugs und Cabriolet-Fahrzeug |
WO2010130288A1 (en) * | 2009-05-12 | 2010-11-18 | Richard Bernard Schaper | Method for operating a cylinder, system and mannequin robot comprising the same |
DE102009054158A1 (de) * | 2009-11-23 | 2011-05-26 | Haco N.V. | Hydraulischer Antrieb |
US8833067B2 (en) * | 2011-04-18 | 2014-09-16 | Caterpillar Inc. | Load holding for meterless control of actuators |
CN102588394B (zh) * | 2012-03-13 | 2015-06-24 | 中联重科股份有限公司 | 液压执行机构的运动控制装置、方法、系统和工程机械 |
DE102012210799A1 (de) * | 2012-06-26 | 2014-01-02 | Robert Bosch Gmbh | Hydraulische Steuervorrichtung mit Volumenstromsensor für jedes Stellglied |
DE102014200469A1 (de) * | 2014-01-14 | 2015-07-16 | Robert Bosch Gmbh | Ventilvorrichtung und Verfahren zum Steuern eines Verbrauchers |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2952127A (en) * | 1954-11-16 | 1960-09-13 | John B Parsons | Power steering and auxiliary motor combination for automobiles |
BE755754A (fr) * | 1969-09-04 | 1971-03-04 | Caterpillar Tractor Co | Système d'alimentation supplémentaire pour les éléments hydrauliques constitutifs d'un véhicule. |
US4643074A (en) * | 1985-03-07 | 1987-02-17 | Vickers, Incorporated | Power transmission |
US5033311A (en) * | 1988-02-05 | 1991-07-23 | Cte Chem Tech Equipment Co., Inc. | Volumetric fluid flow sensor |
JPH02221702A (ja) * | 1989-02-22 | 1990-09-04 | Nireco Corp | 電気油圧サーボ装置 |
DE4104805A1 (de) * | 1990-02-28 | 1991-08-29 | Bosch Gmbh Robert | Hydraulikanlage in einem kraftfahrzeug |
DE4140409A1 (de) * | 1991-12-07 | 1993-06-09 | Robert Bosch Gmbh, 7000 Stuttgart, De | Elektrohydraulische steuereinrichtung |
US5666806A (en) * | 1995-07-05 | 1997-09-16 | Caterpillar Inc. | Control system for a hydraulic cylinder and method |
US5778671A (en) * | 1996-09-13 | 1998-07-14 | Vickers, Inc. | Electrohydraulic system and apparatus with bidirectional electric-motor/hydraulic-pump unit |
NL1014476C2 (nl) * | 2000-02-23 | 2001-08-24 | Applied Power Inc | Hydraulische bedieningsinrichting voor een afdekkapsamenstel van een voeruig. |
EP1392539B1 (de) * | 2001-06-01 | 2009-12-02 | Bayerische Motoren Werke Aktiengesellschaft | System zum öffnen und schliessen eines faltverdeckes oder beweglichen fahrzeugdachs bei einem cabrio-fahrzeug |
DE10149228C2 (de) * | 2001-10-05 | 2003-10-23 | Cts Fahrzeug Dachsysteme Gmbh | Verstellbares Fahrzeugdach |
-
2003
- 2003-08-19 DE DE10338551A patent/DE10338551B3/de not_active Withdrawn - After Issue
-
2004
- 2004-08-02 EP EP04763717A patent/EP1656274B1/de not_active Expired - Fee Related
- 2004-08-02 DE DE502004005573T patent/DE502004005573D1/de active Active
- 2004-08-02 WO PCT/EP2004/008649 patent/WO2005018972A1/de active IP Right Grant
-
2006
- 2006-02-16 US US11/355,688 patent/US7185939B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2005018972A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE10338551B3 (de) | 2005-03-17 |
US7185939B2 (en) | 2007-03-06 |
WO2005018972A1 (de) | 2005-03-03 |
DE502004005573D1 (de) | 2008-01-03 |
EP1656274B1 (de) | 2007-11-21 |
US20060202504A1 (en) | 2006-09-14 |
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