EP2825432A1 - Verfahren zum steuern eines fahrzeugantriebstranges mit einem hydrodynamischen retarder - Google Patents
Verfahren zum steuern eines fahrzeugantriebstranges mit einem hydrodynamischen retarderInfo
- Publication number
- EP2825432A1 EP2825432A1 EP13704034.1A EP13704034A EP2825432A1 EP 2825432 A1 EP2825432 A1 EP 2825432A1 EP 13704034 A EP13704034 A EP 13704034A EP 2825432 A1 EP2825432 A1 EP 2825432A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- speed
- retarder
- clutch
- drive shaft
- vehicle
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 6
- 230000001419 dependent effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
- 238000013024 troubleshooting Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 6
- 230000004913 activation Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
- B60W10/196—Conjoint control of vehicle sub-units of different type or different function including control of braking systems acting within the driveline, e.g. retarders
-
- 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
Definitions
- the present invention relates to a method for controlling a
- Hydrodynamic retarders have been used as wear-free for many years
- Friction clutch for coupling the hydrodynamic retarder ago the coupling of the hydrodynamic retarder also in the filled state
- Disconnect can be switched off from the drive train.
- Operating condition of the vehicle drive train are required to mechanically couple the rotor thereof after a retargeting signal.
- at least the rotor of the hydrodynamic retarder thus that of the two bladed wheels of the retarder, which form the working space with each other, which is driven via the clutch, must be brought to the same speed as the associated drive shaft, after which then usually a mechanical Locking the two coupling halves can be done. If an additional translation is provided between the clutch and the retarder, nevertheless a synchronization in the clutch is required, even if the retarder rotates at a different speed than the clutch.
- the present invention has for its object to provide a method for
- the hydrodynamic retarder is mechanically coupled and disconnected via a coupling and additionally the working space of the retarder, which is between two bladed wheels of the
- Retarder is formed, in particular between a rotor and a stator or a rotor and a counter-rotor, for generating a
- the working space of the hydrodynamic retarder is emptied again from the working fluid, so that substantially no torque transmission between the two paddle wheels takes place more. Furthermore, the clutch can be reopened to mechanically return the hydrodynamic retarder from the powertrain of the
- Uncouple vehicle In this case, an immediate mechanical decoupling is not absolutely necessary, but depending on the existing boundary conditions, this can not be delayed or, if it is likely, for example, that a request of the hydrodynamic retarder is made shortly again.
- the speed of the vehicle and / or the rotational speed of the drive shaft is inventively detected or calculated and the clutch is above a predetermined limit speed and / or above a predetermined limit speed regardless of the detection of a
- Retarget on signal closed to drive the retarder This means that whenever the speed of the vehicle is above the limit speed or when monitoring the rotational speed of the drive shaft, this speed is above the limit speed, an immediate closing of the clutch is driven or effected to avoid that the associated synchronization at higher
- the clutch can therefore with a maximum torque transmission capability in slipping or synchronizing operation or with a maximum allowable
- Speed of the vehicle or at maximum speed of the drive shaft or in the upper range of the possible speed of the drive shaft would be mechanically coupled to the drive shaft by means of the coupling. Such torques or speed differences are inventively avoided by premature closing of the clutch.
- Switching on the retarder is generally blocked until the fault has been remedied.
- the clutch is only after the
- Detection of a retargeting signal closed can also be provided that a forward-looking closing of the clutch takes place even before the detection of a retarder switch-on signal, namely if at least one boundary condition is present which can expect an early retarder switch-on signal or the output of an expected one
- Retarget switch signal signals The closing of the clutch at a speed of the vehicle above the limit speed and / or at a speed of the drive shaft above the limit speed can be controlled for example by an electronic control device.
- an electronic control device accordingly has an input for the speed of the vehicle and / or the rotational speed of the drive shaft and / or for sizes from which the speed of the
- the electronic control device may, for example, in addition to a conventional
- Retarder control device provided or integrated in this.
- the activation of the clutch is effected mechanically above the limit speed or above the limit speed.
- FIG. 1 shows an exemplary representation of a vehicle drive train in which the method according to the invention is used.
- Power take-off shaft 4 is provided, which drives the hydrodynamic retarder 6, more precisely its rotor 7 via the coupling 5, in order to be in the filled state of the
- a control device 11 in particular in the form of an electronic
- Control device controls the opening and closing of the clutch 5. According to one embodiment, the control device 11 also controls the filling and Emptying the working space 9 of the hydrodynamic retarder 6 with
- the control device 11 has at least one input for a
- control device 11 the
- FIG. 1 shows by way of example a rotational speed sensor 12 on the drive shaft 4 or additionally or alternatively a rotational speed sensor 13 on the transmission output shaft 3.
- control device 11 also has an input for a
- Retarder switch-on signal and / or a Retarderausschaltsignal include, here exemplified with 14 numbered.
- the control device 11 closes the clutch 5 and thus limits the power to be supplied by the clutch 5
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012004687.1A DE102012004687B4 (de) | 2012-03-12 | 2012-03-12 | Verfahren zum Steuern eines Fahrzeugantriebstranges mit einem hydrodynamischen Retarder |
| PCT/EP2013/051925 WO2013135423A1 (de) | 2012-03-12 | 2013-01-31 | Verfahren zum steuern eines fahrzeugantriebstranges mit einem hydrodynamischen retarder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2825432A1 true EP2825432A1 (de) | 2015-01-21 |
Family
ID=47714042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13704034.1A Withdrawn EP2825432A1 (de) | 2012-03-12 | 2013-01-31 | Verfahren zum steuern eines fahrzeugantriebstranges mit einem hydrodynamischen retarder |
Country Status (6)
Families Citing this family (7)
| 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 |
| SE538385C2 (sv) | 2013-01-28 | 2016-06-07 | Scania Cv Ab | Kopplingsanordning för retarder, fordon som innefattar en sådan kopplingsanordning och förfarande för inkoppling av en retarder |
| DE102013009534A1 (de) * | 2013-06-07 | 2014-12-11 | Voith Patent Gmbh | Verfahren zum Steuern eines über eine Trennkupplung mechanisch abkoppelbaren hydrodynamischen Retarders |
| DE102013224095A1 (de) * | 2013-11-26 | 2015-05-28 | Voith Patent Gmbh | Hydrodynamische Maschine |
| DE102017128362A1 (de) * | 2017-11-30 | 2019-06-06 | Voith Patent Gmbh | Anfahr- und Retardermodul |
| DE102019112832B4 (de) | 2019-05-16 | 2023-04-20 | Voith Patent Gmbh | Antriebsstrang mit einem abkuppelbaren hydrodynamischen Retarder |
| DE102020207468A1 (de) * | 2019-08-23 | 2021-02-25 | Zf Friedrichshafen Ag | Betreiben einer Trennkupplung zum An- und Abkoppeln eines Retarders für ein Fahrzeug |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1775021A1 (de) * | 1968-06-27 | 1971-04-08 | Zahnradfabrik Friedrichshafen | Fluessigkeitswirbelbremse |
| DE4307222A1 (de) * | 1993-03-09 | 1994-09-15 | Voith Gmbh J M | Hydrodynamisches Fahrzeuggetriebe |
| DE19927397A1 (de) | 1999-06-16 | 2000-12-21 | Zahnradfabrik Friedrichshafen | Schalteinrichtung einer Dauerbremseinrichtung an einem Getriebe |
| SE0400383L (sv) * | 2004-02-19 | 2005-08-20 | Scania Cv Ab | Arrangemang och förfarande för att bromsa ett motorfordon |
| DE102005052121A1 (de) | 2005-10-28 | 2007-05-03 | Voith Turbo Gmbh & Co. Kg | Verfahren zur Reduzierung der Verlustleistung hydrodynamischer Retarder und hydrodynamischer Retarder |
| US7739021B2 (en) * | 2007-01-12 | 2010-06-15 | Gm Global Technology Operations, Inc. | Adaptive retarder control method and apparatus |
| DE102007024698A1 (de) * | 2007-05-25 | 2008-11-27 | Voith Patent Gmbh | Verfahren zum Steuern einer hydrodynamischen Bremse |
| DE102009001146A1 (de) | 2009-02-25 | 2010-08-26 | Zf Friedrichshafen Ag | Antriebsstrang eines Kraftfahrzeugs und Verfahren zu dessen Steuerung |
| US8401753B2 (en) | 2009-11-23 | 2013-03-19 | Caterpillar Inc. | Automatic downhill speed control system |
-
2012
- 2012-03-12 DE DE102012004687.1A patent/DE102012004687B4/de active Active
-
2013
- 2013-01-31 CN CN201380001309.6A patent/CN103534155B/zh active Active
- 2013-01-31 WO PCT/EP2013/051925 patent/WO2013135423A1/de active Application Filing
- 2013-01-31 EP EP13704034.1A patent/EP2825432A1/de not_active Withdrawn
- 2013-01-31 US US13/979,353 patent/US20140081528A1/en not_active Abandoned
- 2013-01-31 BR BR112014020024-6A patent/BR112014020024B1/pt active IP Right Grant
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013135423A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012004687B4 (de) | 2022-07-21 |
| BR112014020024A8 (pt) | 2017-07-11 |
| WO2013135423A1 (de) | 2013-09-19 |
| DE102012004687A1 (de) | 2013-09-12 |
| US20140081528A1 (en) | 2014-03-20 |
| BR112014020024B1 (pt) | 2021-10-05 |
| CN103534155B (zh) | 2017-07-21 |
| BR112014020024A2 (enrdf_load_stackoverflow) | 2017-06-20 |
| CN103534155A (zh) | 2014-01-22 |
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| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
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| AX | Request for extension of the european patent |
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| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20150801 |