WO2013083457A1 - Verfahren zum steuern eines über eine trennkupplung abkoppelbaren hydrodynamischen retarders - Google Patents
Verfahren zum steuern eines über eine trennkupplung abkoppelbaren hydrodynamischen retarders Download PDFInfo
- Publication number
- WO2013083457A1 WO2013083457A1 PCT/EP2012/073827 EP2012073827W WO2013083457A1 WO 2013083457 A1 WO2013083457 A1 WO 2013083457A1 EP 2012073827 W EP2012073827 W EP 2012073827W WO 2013083457 A1 WO2013083457 A1 WO 2013083457A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- retarder
- working medium
- working
- braking operation
- 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
- F16H—GEARING
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/24—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T10/00—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope
- B60T10/02—Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope with hydrodynamic brake
-
- 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
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/04—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders with blades causing a directed flow, e.g. Föttinger type
-
- 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
- F16D67/00—Combinations of couplings and brakes; Combinations of clutches and brakes
- F16D67/02—Clutch-brake combinations
Definitions
- the present invention relates to a method for controlling a hydrodynamic retarder, which can be mechanically decoupled via a separating clutch, in a motor vehicle, in detail according to the preamble of claim 1.
- Circulation flow for transmitting torque from the rotor to the stator or at a Jacobonneretarder from the rotor to an oppositely rotating counter-rotating rotor transmits and thereby the rotor and with this the
- the switching on and off of a hydrodynamic retarder is usually controlled by an electronic control device, wherein the electronic control device receives requests for switching on, off or setting a specific braking torque or braking level either from a driver operating a corresponding input device, For example, a steering column lever, or in some embodiments of a so-called
- Driver assistance system for example, a speed control system or vehicle spacing system.
- the electronic control device detects a Retarderausschaltansch, it causes the emptying of the working space of the working fluid and the opening of the separating clutch.
- the goal is, for example, an implementation of a corresponding requirement in less than a second or even less than 0.5 seconds. It is therefore understandable that if, for example, a
- Retarderausschaltan Kunststoff is detected, the emptying of the working space and the opening of the clutch is conventionally performed immediately and accelerated.
- the inventors have recognized that the wear of the separating clutch can be substantially reduced, if it is ensured that a start of the
- the method according to the invention accesses the switch-off process of the
- hydrodynamic retarder that is, on the transition from
- Retarderausschaltanq a driver assistance system or by operating an input device is initiated by a driver, after the determination of the presence of a Retarderausschaltan Kunststoff
- Disconnect clutch kept closed for a predetermined period of time and the working space of the retarder by continued driving of the rotor and
- the term separating clutch is understood to mean any component which, in a first operating state, produces a power transmission, in particular a mechanical power transmission, and interrupts it in a second operating state, thus for example synchronizer elements, friction clutches and others.
- driver assistance system is any control device into consideration, which issues a Retarderbremsmomentantrust, but in particular a
- Speed control system or stand-off system The predetermined period is in particular with decreasing speed of the rotor
- the outlet pressure is used as a boundary condition for the variation of the time span, then the predetermined period of time becomes in particular with increasing discharge pressure or with increasing size, which coincides with the
- the time span is increased, in particular, with increasing degree of filling or with increasing size correlating with the degree of filling.
- the temperature of the working medium is used as a boundary condition, in particular, in order to take into account the viscosity of the working medium during the emptying, the predetermined time interval is reduced with increasing temperature, or with increasing size, which correlates with the temperature.
- Retarder is taken into account as a boundary condition, to increase the predetermined time with increasing braking torque, or with increasing size, which correlates with the braking torque.
- a variable that correlates with the braking torque is usually the said degree of filling of the working space with working medium.
- Another variable is, for example, the so-called housing pressure of the hydrodynamic retarder, that is to say that static pressure outside the working space in the housing which surrounds the working space.
- Another correlating variable is, for example, the so-called control pressure of the hydrodynamic retarder, that is to say the pressure with which the hydrodynamic retarder usually has a
- Retarder horrvorides is driven to adjust the desired braking torque.
- control pressure for example, a displacing effect on a reservoir for working fluid of the hydrodynamic retarder can be applied so that increased or decreased by more or less strong displacement of working fluid from the reservoir into the working space of the retarder, the degree of filling and thus the braking torque.
- control pressure can be applied to a retarder control valve, the working medium flow in the flow direction of the working medium behind the
- hydrodynamic retarder and the degree of filling of the working space more or less increased.
- the invention can be integrated in a retarder in its control device. The invention will be described below with reference to an embodiment and the
- Figure 1 is an exemplary representation of the assignment of various
- Figure 2 is a schematic representation of a controlled according to the invention hydrodynamic retarder.
- predetermined periods of time different speeds of the rotor can be assigned, for example by means of a step-like assignment, a linear assignment or a continuous non-linear assignment.
- predetermined time periods are those periods, which a disconnect clutch for driving the rotor of the hydrodynamic retarder is still kept closed after a Retarderausschaltanhow has been determined.
- the retarder can
- FIG. 2 shows such a hydrodynamic retarder 1 with a rotor 2 and a stator 3.
- the working medium is from an external
- Working medium circuit 4 supplied to the working space 7 via a working medium supply 5 and discharged to cool the working medium heated in the working space 7 via a Hämediumabbow 6 from the retarder 1.
- Non-braking operation for braking operation the Retardereinlassventil 8 is opened.
- the Retarderauslassventil 9 is controlled with a control pressure such that it causes the desired accumulation of the working fluid and thus the desired degree of filling of the working chamber 7. Alternatively, one would come
- Retarderausschaltan Kunststoff depends, the speed of the rotor 2 is detected, for example via the illustrated speed sensor 12, and the
- the speed sensor 12 could also be positioned at a different location, for example in the direction of
- the hydrodynamic retarder 1 since the speed is usually dependent on another speed in the drive train in which the hydrodynamic retarder 1 is provided, for example, the Geretewellenabtriebsnaviere a motor vehicle transmission or the vehicle speed at a so-called secondary retarder or the engine speed at a primary retarder.
- the retarder control device 10 further controls, as indicated by the dashed line, the opening and closing of the disconnect clutch 11. Further, it receives input signals from, for example, a retarder control lever and a driver assistance system to detect a retarder shutdown request.
- Retarderauslass 6 comes into consideration, or the so-called housing pressure in the housing 13 of the hydrodynamic retarder outside the working space 7th
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280004789.7A CN103313888B (zh) | 2011-12-09 | 2012-11-28 | 用于在机动车辆中控制能够经由分离离合器机械地脱开的液力减速器的方法以及液力减速器 |
BR112014011774A BR112014011774A2 (pt) | 2011-12-09 | 2012-11-28 | método para controlar um retardador hidrodinâmico que pode ser desengatado mecanicamente através de uma embreagem de separação |
EP12799109.9A EP2788237B1 (de) | 2011-12-09 | 2012-11-28 | Verfahren zum steuern eines über eine trennkupplung abkoppelbaren hydrodynamischen retarders |
US13/883,983 US9016450B2 (en) | 2011-12-09 | 2012-11-28 | Method for controlling a hydrodynamic retarder which can be disengaged mechanically via a separating clutch |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011120621.7 | 2011-12-09 | ||
DE102011120621A DE102011120621A1 (de) | 2011-12-09 | 2011-12-09 | Verfahren zum Steuern eines über eine Trennkupplung abkoppelbaren hydrodynamischen Retarders |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013083457A1 true WO2013083457A1 (de) | 2013-06-13 |
Family
ID=47351594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/073827 WO2013083457A1 (de) | 2011-12-09 | 2012-11-28 | Verfahren zum steuern eines über eine trennkupplung abkoppelbaren hydrodynamischen retarders |
Country Status (6)
Country | Link |
---|---|
US (1) | US9016450B2 (de) |
EP (1) | EP2788237B1 (de) |
CN (1) | CN103313888B (de) |
BR (1) | BR112014011774A2 (de) |
DE (1) | DE102011120621A1 (de) |
WO (1) | WO2013083457A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014195050A3 (de) * | 2013-06-07 | 2015-07-23 | Voith Patent Gmbh | Verfahren zum steuern eines über eine trennkupplung mechanisch abkoppelbaren hydrodynamischen retarders |
EP3107776A4 (de) * | 2014-02-19 | 2017-11-29 | Scania CV AB | Steuereinheit für einen retarder, fahrzeug mit solch einem retarder und verfahren zum betätigen eines retarders |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011120622A1 (de) * | 2011-12-09 | 2013-06-13 | Voith Patent Gmbh | Abkoppelbarer hydrodynamischer Retarder und Steuerungsverfahren hierfür |
DE102013009535A1 (de) * | 2013-06-07 | 2014-12-11 | Voith Patent Gmbh | Verfahren zum Steuern eines über eine Trennkupplung abkoppelbaren hydrodynamischen Retarders |
DE102017104600A1 (de) * | 2017-03-06 | 2018-09-06 | Voith Patent Gmbh | Verfahren zur Steuerung einer Trennkupplung |
DE102020211041A1 (de) | 2020-09-02 | 2022-03-03 | Zf Friedrichshafen Ag | Bremsvorrichtung für ein Fahrzeug mit einem hydrodynamischen Retarder und mit einer Trennkupplung |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005052121A1 (de) * | 2005-10-28 | 2007-05-03 | Voith Turbo Gmbh & Co. Kg | Verfahren zur Reduzierung der Verlustleistung hydrodynamischer Retarder und hydrodynamischer Retarder |
DE102007024698A1 (de) * | 2007-05-25 | 2008-11-27 | Voith Patent Gmbh | Verfahren zum Steuern einer hydrodynamischen Bremse |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2055297A (en) * | 1934-09-18 | 1936-09-22 | Gulf Research Development Co | Hydraulic brake |
DE2025306A1 (de) * | 1970-05-23 | 1971-12-16 | Daimler Benz Ag, 7000 Stuttgart | Hydrodynamische Bremse fur Fahrzeuge, insbesondere für Kraftfahrzeuge |
US4324320A (en) * | 1979-06-21 | 1982-04-13 | General Motors Corporation | Power limiting control for retarder with friction brake |
US5101941A (en) * | 1990-10-17 | 1992-04-07 | General Motors Corporation | Hydraulic retarder and control |
SE528476C2 (sv) * | 2004-06-07 | 2006-11-21 | Scania Cv Abp | Sätt och anordning för reglering av styrtryck med ventil av ON/OFF-typ |
DE102010005579A1 (de) * | 2010-01-22 | 2011-07-28 | Voith Patent GmbH, 89522 | Verfahren zum Umrüsten oder Herstellen eines Antriebsstranges und hydrodynamischer Retarder |
-
2011
- 2011-12-09 DE DE102011120621A patent/DE102011120621A1/de not_active Ceased
-
2012
- 2012-11-28 US US13/883,983 patent/US9016450B2/en active Active
- 2012-11-28 CN CN201280004789.7A patent/CN103313888B/zh active Active
- 2012-11-28 WO PCT/EP2012/073827 patent/WO2013083457A1/de active Application Filing
- 2012-11-28 BR BR112014011774A patent/BR112014011774A2/pt not_active IP Right Cessation
- 2012-11-28 EP EP12799109.9A patent/EP2788237B1/de active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005052121A1 (de) * | 2005-10-28 | 2007-05-03 | Voith Turbo Gmbh & Co. Kg | Verfahren zur Reduzierung der Verlustleistung hydrodynamischer Retarder und hydrodynamischer Retarder |
DE102007024698A1 (de) * | 2007-05-25 | 2008-11-27 | Voith Patent Gmbh | Verfahren zum Steuern einer hydrodynamischen Bremse |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014195050A3 (de) * | 2013-06-07 | 2015-07-23 | Voith Patent Gmbh | Verfahren zum steuern eines über eine trennkupplung mechanisch abkoppelbaren hydrodynamischen retarders |
EP3815999A1 (de) * | 2013-06-07 | 2021-05-05 | Voith Patent GmbH | Verfahren zum steuern eines über eine trennkupplung mechanisch abkoppelbaren hydrodynamischen retarders |
EP3107776A4 (de) * | 2014-02-19 | 2017-11-29 | Scania CV AB | Steuereinheit für einen retarder, fahrzeug mit solch einem retarder und verfahren zum betätigen eines retarders |
Also Published As
Publication number | Publication date |
---|---|
BR112014011774A2 (pt) | 2017-05-09 |
EP2788237B1 (de) | 2015-10-14 |
US20140151176A1 (en) | 2014-06-05 |
DE102011120621A1 (de) | 2013-06-13 |
EP2788237A1 (de) | 2014-10-15 |
CN103313888A (zh) | 2013-09-18 |
US9016450B2 (en) | 2015-04-28 |
CN103313888B (zh) | 2016-06-29 |
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