DE102004043346A1 - Method for protecting vehicle transmissions, in particular hydrostatic-mechanical power split transmissions against overload - Google Patents
Method for protecting vehicle transmissions, in particular hydrostatic-mechanical power split transmissions against overload Download PDFInfo
- Publication number
- DE102004043346A1 DE102004043346A1 DE102004043346A DE102004043346A DE102004043346A1 DE 102004043346 A1 DE102004043346 A1 DE 102004043346A1 DE 102004043346 A DE102004043346 A DE 102004043346A DE 102004043346 A DE102004043346 A DE 102004043346A DE 102004043346 A1 DE102004043346 A1 DE 102004043346A1
- Authority
- DE
- Germany
- Prior art keywords
- transmissions
- transmission
- hydrostatic
- mechanical power
- power split
- 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- Withdrawn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
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/038—Limiting the input power, torque or speed
-
- 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
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- 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
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
- B60W10/101—Infinitely variable gearings
- B60W10/103—Infinitely variable gearings of fluid type
-
- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/184—Preventing damage resulting from overload or excessive wear of the driveline
- B60W30/1846—Preventing of breakage of drive line components, e.g. parts of the gearing
-
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/46—Automatic regulation in accordance with output requirements
- F16H61/478—Automatic regulation in accordance with output requirements for preventing overload, e.g. high pressure limitation
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W2050/0001—Details of the control system
- B60W2050/0002—Automatic control, details of type of controller or control system architecture
- B60W2050/0004—In digital systems, e.g. discrete-time systems involving sampling
- B60W2050/0006—Digital architecture hierarchy
-
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/46—Automatic regulation in accordance with output requirements
Abstract
Im Rahmen des Verfahrens zum Schutz von Fahrzeuggetrieben, insbesondere von hydrostatisch-mechanischen Leistungsverzweigungsgetrieben, vor Überbelastung wird die Belastung des Getriebes vom Getrieberegler errechnet und die Motorleistung, basierend auf der vom Getrieberegler errechneten Belastung, beschränkt, wenn eine Schädigung für das Getriebe zu erwarten ist bzw. wenn die Getriebelast einen Schwellenwert überschreitet.In the context of the method for protecting vehicle transmissions, in particular hydrostatic-mechanical power split transmissions, against overloading, the load on the transmission is calculated by the transmission controller and the engine power is limited, based on the load calculated by the transmission controller, if damage to the transmission is to be expected or expected when the transmission load exceeds a threshold.
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Schutz von Fahrzeuggetrieben, insbesondere von hydrostatisch-mechanischen Leistungsverzweigungsgetrieben vor Überbelastung, gemäß dem Oberbegriff des Patentanspruchs 1.The The present invention relates to a method of protecting vehicle transmissions, in particular hydrostatic-mechanical power split transmissions against overloading, according to the generic term of claim 1
Nach dem Stand der Technik umfassen landwirtschaftliche Nutzfahrzeuge hydrostatisch-mechanische Leistungsverzweigungsgetriebe, welche aus einem stufenlos verstellbaren Hydrostatgetriebe mit einer volumenverstellbaren und einer volumenkonstanten Einheit, einem Summierungsgetriebe und einem Bereichsgetriebe mit mehreren schaltbaren Gängen bestehen. Hierbei werden die Anforderungen an die Motorleistung moderner landwirtschaftlicher Fahrzeuge immer höher; diese Leistung soll nicht nur zur Fahrzeugantriebsleistung, sondern auch zum Betrieb von Zapfwellengeräten verwendet werden. Als nachteilig erweist sich die Tatsache, dass, wenn die Motorleistung nicht zum Betrieb von Zapfwellengeräten benötigt wird, diese über das Getriebe zum Antrieb geleitet wird, was in einer Verkürzung der Lebensdauer des Getriebes resultieren kann.To The prior art includes agricultural utility vehicles hydrostatic-mechanical power split transmission, which from a continuously variable hydrostatic transmission with a volume adjustable and a volume constant unit, a summation gear and a range gearbox with several switchable gears exist. Here are the requirements for the engine power modern agricultural Vehicles getting higher; This power is not only intended for vehicle propulsion, but also for the operation of PTO devices be used. A disadvantage is the fact that if engine power is not required to operate PTO equipment, these over the transmission is led to the drive, resulting in a shortening of the Life of the transmission can result.
Aus dem Stand der Technik ist bekannt, elektronisch geregelte Motoren abhängig von der über die Zapfwelle abgeführten Motorleistung entweder auf eine zweite, erhöhte Grenzlastcharakteristik umzuschalten oder ohne Leistungsbegrenzung zu betreiben.Out the prior art is known electronically controlled motors dependent from the over the PTO removed Motor power either to a second, increased load limit characteristic switch over or operate without power limitation.
Beispielsweise ist bekannt, die über die Zapfwelle abgeführte Leistung über eine Phasenverschiebung von Drehzahlsignalen, die von einer verdrehbaren Welle abgenommen werden, zu ermitteln und für den Fall, dass diese Leistung über eine vorgegebene Zeitdauer einen vorgegebenen Schwellenwert überschreitet, zusätzliche Motorleistung freizugeben.For example is known about removed the PTO Performance over a phase shift of speed signals from a rotatable Wave to be detected, and in the event that this power over a predetermined time exceeds a predetermined threshold, additional Engine power release.
Nach dem Stand der Technik kann die über die Zapfwelle abgeführte Motorleistung auch direkt über eine Momentenmessung im Zapfwellenstrang erfasst werden.To The prior art can over the PTO removed Motor power also directly over a moment measurement in the PTO shaft can be detected.
Diese aus dem Stand der Technik bekannte Verfahren erfordern in nachteiliger Weise Sensoren, z.B. einen separaten Momentensensor im Zapfwellenstrang. Außerdem werden andere Leistungsabnahmearten, insbesondere über Frontzapfwellen oder sonstige Nebenabtriebe, wie Pumpen, Kompressoren, Generatoren, etc., nicht berücksichtigt, was zur einer unnötigen Reduzierung der Motorleistung führen kann.These known from the prior art require in disadvantageous Way sensors, e.g. a separate torque sensor in the PTO shaft. Furthermore Other types of power take-off, in particular via front PTOs or other power take-offs, such as pumps, compressors, generators, etc., not considering what to an unnecessary Reduce engine power can.
Ferner ist bekannt, bei Geschwindigkeiten, die einen Schwellenwert übersteigen, und bei geschaltetem dritten oder vierten Gang, zusätzliche Leistung zur Verfügung zu stellen, wenn der Antriebsstrang für diese Leistung ausgelegt ist.Further is known at velocities exceeding a threshold and third or fourth gear, additional power to disposal ask if the powertrain is designed for this power is.
Aus
der
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Schutz von Fahrzeuggetrieben, insbesondere von hydrostatisch-mechanischen Leistungsverzweigungsgetrieben vor Überbelastung anzugeben, welches die erwähnten Nachteile des Standes der Technik vermeidet. Insbesondere soll das erfindungsgemäße Verfahren keine Sensorik benötigen und die dem Getriebe bzw. dem Antriebsstrang zur Verfügung stehende Leistung möglichst exakt erfassen.Of the The present invention is based on the object, a method for the protection of vehicle transmissions, in particular of hydrostatic-mechanical To specify power split transmissions before overload, which the mentioned Disadvantages of the prior art avoids. In particular, that should inventive method do not need any sensors and the gear or the drive train available Performance as exact as possible to capture.
Demnach wird ein Verfahren zum Schutz von Fahrzeuggetrieben vorgeschlagen, im Rahmen dessen die Belastung des Getriebes vom Getrieberegler errechnet wird und die Motorleistung basierend auf der vom Getrieberegler errechneten Belastung beschränkt wird, wenn eine Schädigung für das Getriebe zu erwarten ist bzw. wenn die Getriebelast einen Schwellenwert überschreitet.Therefore a method for protecting vehicle transmissions is proposed As part of this, the load on the transmission is calculated by the transmission controller and the engine power based on that of the transmission controller limited load calculated will, if any damage for the Gearbox is expected or if the gear load exceeds a threshold.
Bei einem hydrostatisch-mechanischen Leistungsverzweigungsgetriebe erfolgt die Lastberechnung vom Getrieberegler über die Hydrostatdrücke. Gemäß der Erfindung kann die Motorleistung von einem übergeordneten Regler, beispielsweise dem Fahrzeug/Motor/Getriebe/Regler beschränkt werden.at a hydrostatic-mechanical power split transmission takes place the load calculation from the transmission controller via the hydrostatic pressures. According to the invention may be the engine power of a parent controller, for example the vehicle / engine / transmission / regulator are limited.
Nach der Motorleistungsbegrenzung wird die Getriebelast überwacht, so dass, wenn die Lastberechnung einen Wert ergibt, der unterhalb eines Schwellenwertes ist, die Motorleistung erhöht oder ganz freigegeben wird. Im Rahmen einer vorteilhaften Variante des erfindungsgemäßen Verfahrens kann die Motorleistung in Abhängigkeit von der Lastberechnung stufenlos begrenzt bzw. eingestellt werden.To the motor power limit, the gear load is monitored, such that when the load calculation yields a value below a threshold value, the engine power is increased or fully released. In the context of an advantageous variant of the method according to the invention can the engine power depending be infinitely limited or adjusted by the load calculation.
Dies bedeutet, dass eine erhöhte Motorleistung immer freigegeben wird, wenn die Belastung für das Getriebe nicht schädigend ist. Gemäß einer Weiterbildung der Erfindung kann die Entscheidungslogik in andere Steuergeräten integriert sein, wie beispielsweise in den Getrieberegler.This means an increased Engine power is always released when the load on the gearbox not harmful is. According to one Development of the invention, the decision logic in others ECUs be integrated, such as in the transmission controller.
Durch die erfindungsgemäße Verwendung des Rechenwertes aus der Lastberechnung entfällt die Notwendigkeit eines separaten Momentensensors im Zapfwellenstrang, was in einer Kostenreduzierung resultiert. Ferner werden in vorteilhafter Weise sämtliche weitere Leistungsabnahmearten berücksichtigt.By the inventive use of the Calculated value from the load calculation eliminates the need for a separate moment sensor in the PTO, resulting in a cost reduction results. Furthermore, in an advantageous manner, all other types of acceptance are taken into account.
Claims (7)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004043346A DE102004043346A1 (en) | 2004-09-08 | 2004-09-08 | Method for protecting vehicle transmissions, in particular hydrostatic-mechanical power split transmissions against overload |
PCT/EP2005/007891 WO2006027045A1 (en) | 2004-09-08 | 2005-07-20 | Method for protecting vehicle gearboxes, in particular hydrostatic-mechanical torque division gearboxes against overloads |
EP05762367A EP1789297A1 (en) | 2004-09-08 | 2005-07-20 | Method for protecting vehicle gearboxes, in particular hydrostatic-mechanical torque division gearboxes against overloads |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004043346A DE102004043346A1 (en) | 2004-09-08 | 2004-09-08 | Method for protecting vehicle transmissions, in particular hydrostatic-mechanical power split transmissions against overload |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004043346A1 true DE102004043346A1 (en) | 2006-03-09 |
Family
ID=34972827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004043346A Withdrawn DE102004043346A1 (en) | 2004-09-08 | 2004-09-08 | Method for protecting vehicle transmissions, in particular hydrostatic-mechanical power split transmissions against overload |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1789297A1 (en) |
DE (1) | DE102004043346A1 (en) |
WO (1) | WO2006027045A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019214101A1 (en) * | 2019-09-17 | 2021-03-18 | Zf Friedrichshafen Ag | Method for preventing overloading of the variator of a CVT transmission |
US20220304240A1 (en) * | 2021-03-24 | 2022-09-29 | Deere & Company | Intelligent power allocation systems onboard hybrid combines and associated methods |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101055355B1 (en) | 2003-08-20 | 2011-08-09 | 톰슨 라이센싱 | Artifact Reduction Method and Decoding Device for Video Streams |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4459806A (en) * | 1977-07-08 | 1984-07-17 | Kockums Industri Ab | Governing fuel injection and hydraulic transmission simultaneously |
DE3321636C2 (en) * | 1982-06-29 | 1991-08-14 | Linde Ag, 6200 Wiesbaden, De | |
US5065319A (en) * | 1989-12-12 | 1991-11-12 | Toyota Jidosha Kabushiki Kaisha | Power control system for vehicles |
DE69617887T2 (en) * | 1995-11-17 | 2002-04-25 | Eaton Corp | Torque control for powertrain |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT7927506A0 (en) * | 1979-11-23 | 1979-11-23 | Linde Guldner Italiana S P A | HYDRAULIC DEVICE FOR SYNCHRONIZING THE POWER SUPPLY OF AN INTERNAL COMBUSTION ENGINE WITH THE VARIABLE DISPLACEMENT OF THE PUMP IN A DRIVE VIA HYDROSTATIC TRANSMISSION. |
DE9314512U1 (en) * | 1993-09-24 | 1993-11-11 | Siemens Ag | Safety device on a motor vehicle with an automatic transmission |
DE19645699A1 (en) * | 1996-11-06 | 1998-05-07 | Schloemann Siemag Ag | Hydrostatic transmission |
-
2004
- 2004-09-08 DE DE102004043346A patent/DE102004043346A1/en not_active Withdrawn
-
2005
- 2005-07-20 WO PCT/EP2005/007891 patent/WO2006027045A1/en not_active Application Discontinuation
- 2005-07-20 EP EP05762367A patent/EP1789297A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4459806A (en) * | 1977-07-08 | 1984-07-17 | Kockums Industri Ab | Governing fuel injection and hydraulic transmission simultaneously |
DE3321636C2 (en) * | 1982-06-29 | 1991-08-14 | Linde Ag, 6200 Wiesbaden, De | |
US5065319A (en) * | 1989-12-12 | 1991-11-12 | Toyota Jidosha Kabushiki Kaisha | Power control system for vehicles |
DE69617887T2 (en) * | 1995-11-17 | 2002-04-25 | Eaton Corp | Torque control for powertrain |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019214101A1 (en) * | 2019-09-17 | 2021-03-18 | Zf Friedrichshafen Ag | Method for preventing overloading of the variator of a CVT transmission |
US20220304240A1 (en) * | 2021-03-24 | 2022-09-29 | Deere & Company | Intelligent power allocation systems onboard hybrid combines and associated methods |
Also Published As
Publication number | Publication date |
---|---|
EP1789297A1 (en) | 2007-05-30 |
WO2006027045A1 (en) | 2006-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |