DE2942961A1 - METHOD FOR OPTIMIZING FUEL CONSUMPTION - Google Patents
METHOD FOR OPTIMIZING FUEL CONSUMPTIONInfo
- Publication number
- DE2942961A1 DE2942961A1 DE19792942961 DE2942961A DE2942961A1 DE 2942961 A1 DE2942961 A1 DE 2942961A1 DE 19792942961 DE19792942961 DE 19792942961 DE 2942961 A DE2942961 A DE 2942961A DE 2942961 A1 DE2942961 A1 DE 2942961A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel consumption
- gear
- engine
- working
- internal combustion
- 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- Withdrawn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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/42—Ratio indicator devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/14—Direct injection into combustion chamber
-
- 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
- F16H2061/0015—Transmission control for optimising fuel consumptions
-
- 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
- F16H61/02—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 characterised by the signals used
- F16H61/0202—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 characterised by the signals used the signals being electric
- F16H61/0204—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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
- F16H2061/022—Calculation or estimation of optimal gear ratio, e.g. best ratio for economy drive or performance according driver preference, or to optimise exhaust emissions
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/42—Ratio indicator devices
- F16H2063/426—Ratio indicator devices with means for advising the driver for proper shift action, e.g. prompting the driver with allowable selection range of ratios
-
- 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
- F16H61/02—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 characterised by the signals used
- F16H61/0202—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 characterised by the signals used the signals being electric
- F16H61/0204—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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—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 characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Description
Maschinenfabrik Augsburg-Nürnberg AktiengesellschaftMaschinenfabrik Augsburg-Nürnberg Aktiengesellschaft
Nürnberg, 16. "Okt. 1979Nuremberg, October 16, 1979
Verfahren zum Optimieren des KraftstoffverbrauchesMethod for optimizing fuel consumption
Die Erfindung bezieht sich auf ein Verfahren zum Optimieren des Kraftstoffverbrauches bei in Kraftfahrzeugen eingebauten Brennkraftmaschinen, insbesondere bei in Nutzfahrzeugen eingebauten, direkt einspritzenden oder mit Vor- bzw. Wirbelkammer arbeitenden Brennkraftmaschinen. Die zunehmende Treibstoffverknappung mit dem Begleitumstand steigender Preise gibt Anlaß, nicht nur den Wirkungsgrad von Brennkraftmaschinen zu verbessern, sondern parallel dazu auch den durch die Fahrweise bedingten Kraftstoffverbrauch, insbesondere bei Nutzfahrzeugen, zu minimieren. Mit der Preiswürdigkeit heute verfügbarer Bauelemente der elektronischen Meß- und Rechentechnik sind die Voraussetzungen hierfür in idealer Weise gegeben. Nur diese Mittel ermöglichen es, mit der nötigen Geschwindigkeit eine laufende Kraftstoffverbrauchsanalyse des Antriebsmotors vorzunehmen und gleichzeitig auch den ■verbrauchsgünstigsten Betriebszustand des Motors vorzuschlagen oder automatisch zu erzwingen.The invention relates to a method for optimizing the fuel consumption when installed in motor vehicles Internal combustion engines, in particular in commercial vehicles built-in, direct injection or with an antechamber or swirl chamber working internal combustion engines. The increasing shortage of fuel with the accompanying circumstance Rising prices give cause not only to improve the efficiency of internal combustion engines, but also in parallel also to minimize the fuel consumption caused by the driving style, especially in commercial vehicles. The prerequisites are the prerequisites for the affordable components of electronic measurement and computing technology available today given for this in an ideal way. Only these funds make it possible with the necessary speed to carry out an ongoing fuel consumption analysis of the drive engine and, at the same time, to find the ■ most economical To propose the operating state of the engine or to force it automatically.
Im günstigsten Falle bestünde das Ziel einer derartigen Optimierung in der Wahl einer solchen Fahrzeuggeschwindigkeit und Getriebegangstufe - entsprechend den Vorgaben der topographischen Gegebenheiten der Straßentrasse, daß stets ^in minimaler Kraftstoffverbrauch gewährleistet ist. Die vorgenannten topographischen Bedingungen, aberIn the most favorable case, the goal of such an optimization would be the choice of such a vehicle speed and gear stage - according to the specifications of the topographical conditions of the road route that always ^ guaranteed in minimum fuel consumption is. The aforementioned topographical conditions, however
22·8686 1300 19/0230 ./. 22 8686 1300 19/0230 ./.
-k--k-
auch die nicht auszuschließende ZwangsfUhrung im dichten Verkehrsstrom oder schließlich die Notwendigkeit des Einhaltens einer mittleren Fahrgeschwindigkeit im Falle der Gewährleistung einer vereinbarten Transportzeit stellen jedoch als gegeben hinzunehmende Einschränkungen, die Fahrzeuggeschwindigkeit als einen der beiden frei wählbaren Optimierungsparameter in Frage. Eine an der Praxis orientierte Kraftstoffverbrauchsoptimierung kann demnach nur darin bestehen, für einen augenblicklich vorliegenden Fahrzustand mittels geeigneter Vorgehensweise denjenigen Getriebegang zu ermitteln, bei dem unter Beibehaltung der augenblicklichen Fahrzeuggeschwindigkeit der Antriebsmotor günstigste Verbrauchswerte aufweist.also the compulsory guidance in poetry, which cannot be ruled out Traffic flow or, finally, the need to maintain a medium speed in the event the guarantee of an agreed transport time, however, are subject to acceptable restrictions, the vehicle speed as one of the two freely selectable optimization parameters in question. One at the Practice-oriented fuel consumption optimization can therefore only consist of one moment to determine the present driving state by means of a suitable procedure that transmission gear in which under Maintaining the current vehicle speed, the drive motor has the most favorable consumption values.
Als zu beeinflussende Getriebestufen kommen hierfür ausschließlich der wandlerbehafteten ersten Stufe nur alle höheren Gänge mit jeweils festem übersetzungsverhältnis, also keine mit Schlupf behafteten, in Frage.The only gear stages to be influenced are the converter-affected first stage only all higher gears with a fixed gear ratio, so no slippage in question.
Hier setzt bereits die Erfindung ein, der die Aufgabe zugrunde liegt, ein Verfahren der eingangs beschriebenen Art zu entwickeln, durch das immer der Jeweils günstigste Gang gewählt werden kann oder automatisch gewählt wird.The invention, on which the object is based, is a method of the type described at the outset To develop a way through which the most favorable gear can always be selected or is selected automatically.
Nach der Erfindung wird die Aufgabe durch folgende Verfahrensschritte gelöst:According to the invention, the object is achieved by the following process steps solved:
a) Bestimmung des Istwertes des augenblicklichen Kraft-a) Determination of the actual value of the instantaneous force
' ~ stoffVerbrauches sowie Ermitteln der an den Rädern des Kraftfahrzeuges im Augenblick vorhandenen Antriebsleistung, '~ Material consumption, and identify existing at the wheels of the motor vehicle at the moment drive power,
b) Errechnen der zu erwartenden Kraftstoff-Verbrauchswerte für alle alternativ einlegbaren Gangstufen des Schaltgetriebes, wobei die bereits ermittelte Antriebsleistung zugrunde gelegt und gleichzeitig die Fahrzeuggeschwindigkeit als konstant beibehalten angenommen wird, b) Calculating the expected fuel consumption values for all alternatively insertable gear steps of the gearbox, whereby the drive power already determined and at the same time the vehicle speed is assumed to be maintained constant,
22·8686 1300 19/02 30 '/· 22 8686 1300 19/02 30 '/
c) Bestimmen der verbrauchsgünstigsten Gangstufe durch zyklischen Vergleich der bekannten gangspezifischen Verbrauchswerte untereinander,c) Determining the most economical gear stage cyclical comparison of the known aisle-specific consumption values with one another,
d) Ableitung alternativer Maßnahmen aus dem erhaltenen Ergebnis wie optische Anzeige des manuell anzuwählenden Ganges oder automatischer Gangwechsel durch elektromagnetische oder elektrohydraulisch^ Stellglieder,d) Deriving alternative measures from the received Result like optical display of the manually selected gear or automatic gear change by electromagnetic or electro-hydraulic ^ actuators,
e) Ab- oder Zuschalten von Arbeitszylindern, um den mittleren Arbeitsdruck im Zylinder so zu ändern, daß der Betriebspunkt des Motors so nah wie möglich ans Minimum des spezifischen Kraftstoffverbrauches gebracht wird,e) Switching off or switching on of working cylinders in order to change the mean working pressure in the cylinder so that the The engine's operating point is brought as close as possible to the minimum specific fuel consumption,
f) erneuter Beginn des gleichen Zyklus und Ausführung in periodischer endloser Folge.f) restarting the same cycle and executing in periodic endless sequence.
Es sei hier ausdrücklich erwähnt, daß die Mittel zum Durchführen der einzelnen Verfahrensschritte jeweils für S-1Ch gesehen durchaus bereits bekannt und daher beliebig wählbar sind.Es soll lediglich eine schnelle Kontrolle möglich sein.It should be expressly mentioned here that the means for carrying out the individual process steps are already known for S -1 Ch and can therefore be selected as desired. Only a quick check should be possible.
So kann beispielsweise die Bestimmung des Istwertes des augenblicklichen Kraftstoffverbrauches indirekt durch Ermittlung anhand des Motorkennfeldes erfolgen. Dieses beschreibt die Abhängigkeit zwischen Motordrehmoment, Motordrehzahl, Regelstangenstellung an der Einspritzpumpe und spezifischen Kraftstoffverbrauch. Die Bestimmung erfolgt durch einen Rechner, beispielsweise einen Mikrorechner oder Mikroprozessor, und zwar so, daß das im Arbeitsspeicher des Rechners in geeigneter Weise abgelegte Kennfeld nach dem Kraftstoffverbrauch software-gesteuert in der Weise abgefragt wird, indem man dem Rechner zunächst die maßtechnisch ständig verfügbar gehaltenen Werte für Regelstangenstellung und Motordrehzahl abrufen läßt, um sodann den zugeordneten Kraftstoffverbrauch vermittels geeigneterFor example, the actual value of the instantaneous fuel consumption can be determined indirectly Determination based on the engine map. This describes the relationship between the engine torque, Engine speed, rack position on the injection pump and specific fuel consumption. The determination is made by a computer, for example a microcomputer or microprocessor, in such a way that it is in the working memory the computer suitably stored map according to the fuel consumption software-controlled in this way is queried by first providing the computer with the values for the control rod position, which are constantly available in terms of measurements and the engine speed can be retrieved in order to then determine the associated fuel consumption by means of suitable
22.8686 ./·22.8686 ./·
1 30019/02301 30019/0230
Suchstrategie, gegebenenfalls unter Benutzung von Interpolationsalgorithmen, wieder vom Rechner bestimmen läßt.Search strategy, if necessary using interpolation algorithms, can be determined again by the computer.
Die Bestimmung der an den Rädern des Kraftfahrzeuges im Augenblick vorhandenen Antriebsleistung kann zweckmäßigerweise erfolgen, indem in einem ersten Schritt die an die Kurbelwelle abgegebene Motorleistung sowie die Getriebeverlustleistung indirekt über das bereits erwähnte Kennfeld des Motors bzw. des Getriebes zugängig gemacht werden. Das Getriebekennfeld stellt für jede Schaltstufe die Verlustleistung des Getriebes in Abhängigkeit von der Drehzahl und dem Eingangsdrehmoment dar. Es ist für jede Schaltstufe wie das Motorkennfeld im Arbeitsspeicher des Rechners abgelegt. Per rechnergesteuerter Abfrage des gemessenen Regelstangenweges und der Motordrehzahl ist in ähnlicher Weise wie bei der Bestimmung des Kraftstoffverbrauches das zugeordnete, abgegebene Motordrehmoment dem Speicher des Motorkennfeldes zu entnehmen, um sogleich mit der Motordrehzahl multipliziert die abgegebene Motorleistung zu ergeben. Das Motordrehmoment stellt zugleich das Eingangsdrehmoment für die augenblicklich benutzte Schaltbzw. Getriebestufe dar, mit dessen Verfügbarkeit der Rechner in die Lage versetzbar ist, die entsprechende Getriebeverlustleistung dem Getriebestufen-Kennfeld-Speicher zu entnehmen. Diese wird nunmehr von der Motorleistung abgezogen, wodurch sich die an den Antriebsrädern anstehende Leistung ergibt, die ihrerseits an einem adressierbaren Speicherplatz abrufbar gehalten wird.The determination of the on the wheels of the motor vehicle in Drive power present at the moment can expediently take place by, in a first step, the to the Engine power output from the crankshaft as well as the transmission power loss indirectly via the already mentioned map of the engine or the transmission can be made accessible. The transmission map shows the power loss for each gear stage of the gearbox as a function of the speed and the input torque. It is for each gear stage like the engine map stored in the computer's main memory. By computer-controlled query of the measured The control rod travel and the engine speed is similar to that used for determining fuel consumption the assigned, delivered engine torque can be taken from the memory of the engine map in order to immediately start with the Engine speed multiplied to give the output engine power. The engine torque also represents the input torque for the currently used switching or Gear stage, with its availability the Computer can be put in the position, the corresponding transmission power loss to the gear stage map memory refer to. This is now deducted from the engine power, which means that the power on the drive wheels pending performance results, which in turn is kept retrievable at an addressable memory location.
Das Errechnen der zu erwartenden Kraftstoff-Verbrauchswerte für alle alternativ einlegbare Gangstufen geht wie folgt vor sich: Für Jede Getriebe-Gangstufe werden dieCalculating the expected fuel consumption values for all alternatively insertable gear steps proceed as follows: For each gear step the
22.868622.8686
130019/0230130019/0230
Getriebe-Verlustleistung, die Getriebeeingangsleistung und die Getriebeeingangsdrehzahl unter Zugrundelegung der bereits ermittelten leistung an den Antriebsrädern errechnet. Danach werden diese Größen in entsprechendTransmission power loss, the transmission input power and the transmission input speed on the basis of this the power already determined on the drive wheels calculated. After that, these sizes are in accordingly
adressierten Speicherplätzen des Rechners abgelegt. Damit können anhand eines "identifizierungsprogrammes" diejenige!. Getriebestufen ermittelt werden, die sich auf Grund von Grenzwertkriterien wie der Drehzahl und des übertragbaren Drehmomentes als zulässige Getriebestufenalternative anbieten. addressed memory locations of the computer. With this, the !. Gear stages are determined based on limit value criteria such as the speed and the transmittable Torque as a permissible gear stage alternative.
In Kenntnis der Getriebeeingangsdaten wie Drehzahl und Drehmoment, die ihrerseits zugleich Motorausgangsdaten darstellen, ist der Rechner bei entsprechender Programmierung ir. der Lage, für jede Getriebestufenalternative den entsprechenden Kraftstoffverbrauch dem Speicher für das Motorkennfeld zu entnehmen und sodann entsprechend adressiert abzulegen.Knowing the gearbox input data such as speed and torque, which in turn is also engine output data represent, the computer with the appropriate programming is ir. The position for each gear stage alternative the Corresponding fuel consumption to be taken from the memory for the engine map and then addressed accordingly to discard.
Die verbrauchsgünstigste Gangstufe wird schließlich durch zyklische Differenzbildung zwischen dem augenblicklichen Verbrauch und dem jeweils gangspezifischen Verbrauch, der wie vorstehend beschrieben errechnet wurde, bestimmt. Ein Betrags- und Vorzeichenvergleich für die erhaltenen Differenzen ergibt mit den dafür üblichen Identifizierungsalgorithmen die gesuchte Gangstufe.The most fuel-efficient gear is finally determined by cyclical difference formation between the current one Consumption and the aisle-specific consumption, calculated as described above. A comparison of the amount and sign for the received Differences result with the usual identification algorithms the gear step you are looking for.
Das auf diese Weise erhaltene Ergebnis wird letztlich dazu benutzt, um eine optische Anzeige des Jeweils manuell anzuwählenden Ganges zu betreiben oder einen automatischen Gangwechsel beispielsweise durch elektromagnetische oder elektrohydraulische Stellglieder einzuleiten. The result obtained in this way is ultimately used to provide a visual display of the respective to operate manually selected gear or an automatic gear change, for example by electromagnetic or to initiate electro-hydraulic actuators.
22.868622.8686
• A 1 30019/0230• A 1 30019/0230
Die günstigste Gangstufe ergibt Über die Gesamtübersetzung eine bestimmte Motordrehzahl. Für diese konstant zu haltende Drehzahl, die im Kennfeld des Motors als Senkrechte wiedergegeben wird, wird dann vcm Mikrorechner überprüft, ob nicht durch Veränderung des mittleren effektiven Arbeitsdruckes ein günstigerer spezifischer Brennstoffverbrauch zu erzielen ist. Das kann bei einer geforderten Fahrzeugantriebsleistung nur über eine Ab- oder Zuschaltung einzelner Arbeitszylinder erfolgen und ist gleichbedeutend mit einer Veränderung des Hubraumes.The most favorable gear step results in a certain engine speed via the overall ratio. For this to be kept constant Speed, which is shown as a vertical line in the engine map, is then checked by the microcomputer to determine whether a more favorable specific fuel consumption is not achieved by changing the mean effective working pressure can be achieved. With a required vehicle drive power, this can only be done by disconnecting or connecting individual components Working cylinders take place and is synonymous with a change in the displacement.
Der gleiche Zyklus wird dann in endloser Folge immer wieder erneut durchgeführt, so daß der Fahrer zu Jeder Zeit zumindest erkennen kann, ob er kraftstoffsparend führt.The same cycle will then always be in endless succession carried out again, so that the driver can at least see at any time whether he is fuel-efficient leads.
Voraussetzung für die Kraftstoffverbrauchsbestimmung ist also zum einen die Messung der Motordrehzahl und der Regelstangenstellung der Einspritzpumpe, sofern es sich um eine direkt einspritzende oder mit Vor- bzw. Wirbelkammer arbeitenden Brennkraftmaschine handelt, zum anderen die Verfügbarkeit der Kennfelder vom Motor und von den einzelnen Getriebestufen. Die Motordrehzahl ist beispielsweise auch mit einem auf induktiver Basis arbeitenden aktiven Incrementalgeber, angestellt am Anlasserzahnkranz unmittelbar und die Regelstangenstellung kann entweder passiv mittels eines Verschiebepotenticmeters oder durch einen trägerfrequenzgespeisten Differentialtransformatorweggeber gewonnen werden.The prerequisite for determining fuel consumption is, on the one hand, the measurement of the engine speed and the control rack position the injection pump, provided it is a direct injection pump or with a prechamber or swirl chamber working internal combustion engine is, on the other hand the Availability of the engine maps and the individual gear stages. The engine speed is for example also with an active incremental encoder working on an inductive basis, directly engaged with the starter ring gear and the control rack position can either be passive by means of a displacement potentiometer or by a carrier-frequency-fed differential transformer displacement encoder be won.
130019/0230
22.8686 130019/0230
22.8686
Claims (1)
AktiengesellschaftMaschinenfabrik Augsburg-Nürnberg
Corporation
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792942961 DE2942961A1 (en) | 1979-10-24 | 1979-10-24 | METHOD FOR OPTIMIZING FUEL CONSUMPTION |
| FR8020399A FR2477229A1 (en) | 1979-10-24 | 1980-09-23 | METHOD FOR OPTIMIZING FUEL CONSUMPTION OF INTERNAL COMBUSTION ENGINES |
| DD80224692A DD153719A1 (en) | 1979-10-24 | 1980-10-22 | PROCESS FOR REDUCING FUEL CONSUMPTION |
| JP14808280A JPS5695721A (en) | 1979-10-24 | 1980-10-22 | Method of making fuel consumption best |
| SE8007418A SE8007418L (en) | 1979-10-24 | 1980-10-22 | PROCEDURE FOR OPTIMIZING FUEL CONSUMPTION IN MOTOR VEHICLES BUILT IN ENGINE |
| IT25515/80A IT1133992B (en) | 1979-10-24 | 1980-10-23 | PROCEDURE FOR OPTIMIZING FUEL CONSUMPTION |
| GB8034204A GB2061424A (en) | 1979-10-24 | 1980-10-23 | Optimizing fuel consumption of an I.C. engine by control of the engine and of an associated change- speed transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792942961 DE2942961A1 (en) | 1979-10-24 | 1979-10-24 | METHOD FOR OPTIMIZING FUEL CONSUMPTION |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2942961A1 true DE2942961A1 (en) | 1981-05-07 |
Family
ID=6084268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792942961 Withdrawn DE2942961A1 (en) | 1979-10-24 | 1979-10-24 | METHOD FOR OPTIMIZING FUEL CONSUMPTION |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5695721A (en) |
| DD (1) | DD153719A1 (en) |
| DE (1) | DE2942961A1 (en) |
| FR (1) | FR2477229A1 (en) |
| GB (1) | GB2061424A (en) |
| IT (1) | IT1133992B (en) |
| SE (1) | SE8007418L (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3101056A1 (en) * | 1981-01-15 | 1982-08-05 | Daimler-Benz Ag, 7000 Stuttgart | METHOD AND DEVICE FOR DETERMINING SWITCHING SIGNALS |
| DE3138371A1 (en) * | 1981-09-26 | 1983-04-14 | Daimler-Benz Ag, 7000 Stuttgart | Device for controlling a drive engine-transmission unit of a motor vehicle |
| EP0097765A2 (en) * | 1982-06-24 | 1984-01-11 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Control system for the propulsion unit of a motor vehicle |
| DE102008028561A1 (en) | 2008-03-10 | 2009-09-17 | Volkswagen Ag | Driver information device for car, has display device for displaying set of information simultaneously in display mode, where one information indicates change of fuel consumption due to possible gear change |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57140536A (en) * | 1981-02-24 | 1982-08-31 | Nissan Motor Co Ltd | Internal-combustion engine controller |
| JPS60121127A (en) * | 1983-12-06 | 1985-06-28 | Nissan Motor Co Ltd | Method of controlling power train |
| DE3444544A1 (en) * | 1983-12-06 | 1985-06-20 | Nissan Motor Co., Ltd., Yokohama, Kanagawa | DRIVE CONTROL METHOD WITH SELECTABLE OPERATING MODES |
| JPS60128031A (en) * | 1983-12-14 | 1985-07-08 | Nissan Motor Co Ltd | Controlling method of power train |
| JP3663677B2 (en) * | 1995-07-06 | 2005-06-22 | アイシン・エィ・ダブリュ株式会社 | Control device for automatic transmission for vehicle |
| FR2791013B1 (en) * | 1999-03-17 | 2001-06-01 | Renault | METHOD OF CONTROLLING A MOTOR-PROPELLER GROUP FOR A MOTOR VEHICLE |
| SE512461C2 (en) * | 1999-04-16 | 2000-03-20 | Scania Cv Ab | Method and apparatus for controlling an automated gearbox |
| DE102006009589A1 (en) * | 2006-03-02 | 2007-09-06 | Zf Friedrichshafen Ag | Method for controlling an automatic transmission and transmission control device with consumption map determining device |
| SE532715C2 (en) * | 2008-06-18 | 2010-03-23 | Scania Cv Abp | Method and system for transmission control at low power demand |
| CN105545503B (en) * | 2015-12-23 | 2019-10-25 | 中联重科股份有限公司 | The energy-saving control method and system of engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2108987A1 (en) * | 1971-02-25 | 1972-09-07 | Robert Bosch Gmbh, 7000 Stuttgart | Transmission control for step change transmissions in motor vehicles |
| DE2712327A1 (en) * | 1976-03-22 | 1977-10-06 | Fiat Spa | PROCEDURE FOR THE INDEPENDENT CONTROL OF MOTOR VEHICLES |
| DE2625770A1 (en) * | 1976-06-09 | 1977-12-15 | Daimler Benz Ag | Automatic gear change control - has engine speed and torque monitors delivering signals to processing circuit to set gear ratio for minimum fuel consumption |
| EP0003592A1 (en) * | 1978-02-15 | 1979-08-22 | Anglo American Corporation of South Africa Limited | Gear ratio selection apparatus |
| DE2811574A1 (en) * | 1978-03-17 | 1979-09-27 | Bosch Gmbh Robert | DEVICE FOR THE CONTROL OF A DRIVE MOTOR-GEAR UNIT OF A MOTOR VEHICLE |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5227958A (en) * | 1975-08-28 | 1977-03-02 | Nissan Motor Co Ltd | Device for controlling number of cylinders |
| FR2385902A1 (en) * | 1977-03-31 | 1978-10-27 | Renault | PROCESS FOR REGULATING A MOTORPOWER UNIT AND DEVICE ENABLING ITS IMPLEMENTATION |
| US4208925A (en) * | 1977-08-11 | 1980-06-24 | Caterpillar Tractor Co. | Electronic transmission control and method therefor |
| DE2811953A1 (en) * | 1978-03-18 | 1979-09-27 | Sigmund Vladimir Dipl Math Dr | Control for vehicle automatic transmission - with torque and speed control through variable torque converter and throttle control |
| FR2466367A1 (en) * | 1979-10-01 | 1981-04-10 | Renault | METHOD FOR CONTROLLING A MOTOR POWER GROUP AND DEVICE FOR IMPLEMENTING IT |
-
1979
- 1979-10-24 DE DE19792942961 patent/DE2942961A1/en not_active Withdrawn
-
1980
- 1980-09-23 FR FR8020399A patent/FR2477229A1/en active Pending
- 1980-10-22 DD DD80224692A patent/DD153719A1/en unknown
- 1980-10-22 JP JP14808280A patent/JPS5695721A/en active Pending
- 1980-10-22 SE SE8007418A patent/SE8007418L/en not_active Application Discontinuation
- 1980-10-23 GB GB8034204A patent/GB2061424A/en not_active Withdrawn
- 1980-10-23 IT IT25515/80A patent/IT1133992B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2108987A1 (en) * | 1971-02-25 | 1972-09-07 | Robert Bosch Gmbh, 7000 Stuttgart | Transmission control for step change transmissions in motor vehicles |
| DE2712327A1 (en) * | 1976-03-22 | 1977-10-06 | Fiat Spa | PROCEDURE FOR THE INDEPENDENT CONTROL OF MOTOR VEHICLES |
| DE2625770A1 (en) * | 1976-06-09 | 1977-12-15 | Daimler Benz Ag | Automatic gear change control - has engine speed and torque monitors delivering signals to processing circuit to set gear ratio for minimum fuel consumption |
| EP0003592A1 (en) * | 1978-02-15 | 1979-08-22 | Anglo American Corporation of South Africa Limited | Gear ratio selection apparatus |
| DE2811574A1 (en) * | 1978-03-17 | 1979-09-27 | Bosch Gmbh Robert | DEVICE FOR THE CONTROL OF A DRIVE MOTOR-GEAR UNIT OF A MOTOR VEHICLE |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3101056A1 (en) * | 1981-01-15 | 1982-08-05 | Daimler-Benz Ag, 7000 Stuttgart | METHOD AND DEVICE FOR DETERMINING SWITCHING SIGNALS |
| DE3138371A1 (en) * | 1981-09-26 | 1983-04-14 | Daimler-Benz Ag, 7000 Stuttgart | Device for controlling a drive engine-transmission unit of a motor vehicle |
| EP0097765A2 (en) * | 1982-06-24 | 1984-01-11 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Control system for the propulsion unit of a motor vehicle |
| EP0097765A3 (en) * | 1982-06-24 | 1985-07-24 | Dr.Ing.H.C. F. Porsche Aktiengesellschaft | Control system for the propulsion unit of a motor vehicle |
| DE102008028561A1 (en) | 2008-03-10 | 2009-09-17 | Volkswagen Ag | Driver information device for car, has display device for displaying set of information simultaneously in display mode, where one information indicates change of fuel consumption due to possible gear change |
| DE102008028561B4 (en) | 2008-03-10 | 2022-03-31 | Volkswagen Ag | Driver information device for a motor vehicle and method for providing driver information on a motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5695721A (en) | 1981-08-03 |
| IT8025515A0 (en) | 1980-10-23 |
| SE8007418L (en) | 1981-04-25 |
| DD153719A1 (en) | 1982-01-27 |
| IT1133992B (en) | 1986-07-24 |
| FR2477229A1 (en) | 1981-09-04 |
| GB2061424A (en) | 1981-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2942961A1 (en) | METHOD FOR OPTIMIZING FUEL CONSUMPTION | |
| EP0156820B1 (en) | Process and circuit for determining the fuel consumption-optimum gear for an engine of a motor vehicle | |
| DE4344369C2 (en) | Consumption-oriented mileage limitation of a vehicle drive | |
| DE2941977C2 (en) | ||
| DE19515534A1 (en) | Automatic transmission control device and a control method therefor | |
| DE3152541A1 (en) | A method of automatic gear selection in a vehicle power transmission | |
| DE19808167C1 (en) | Method for correcting a calculated torque in the drive train of a motor vehicle | |
| EP0619886B1 (en) | Method for determining engine speed gradient | |
| DE19535056C1 (en) | Fuel injection control system for diesel engine | |
| DE2841187A1 (en) | CONTROL SYSTEM FOR A MACHINE, IN PARTICULAR COMBUSTION MACHINE | |
| DE112018002453T5 (en) | VEHICLE CONTROL DEVICE | |
| EP1365129A2 (en) | Method and apparatus for controlling an internal combustion engine | |
| DE102010005045A1 (en) | Driving gear selecting method for internal combustion engine of commercial motor vehicle, involves determining shifting processes required for driving through distance section based on prediction of vehicle operating condition variable | |
| DE112018002450T5 (en) | VEHICLE CONTROL DEVICE | |
| DE102008053604A1 (en) | Device for evaluating driving condition of hybrid vehicle, is provided with hybrid vehicle that is driven by internal combustion engine and electric machine | |
| DE10084468B4 (en) | Method and arrangement for controlling an automatic gearbox | |
| DE2829634A1 (en) | Fuel consumption meter for IC engine - has two pointers turned by speed and load signals, with intersection indicating economy level against reference curve | |
| DE19845441A1 (en) | Method for electronically trimming an injector | |
| DE112018002443T5 (en) | VEHICLE CONTROL DEVICE AND VEHICLE CONTROL METHOD | |
| EP2550443A1 (en) | Method and apparatus for adapting adaptation values for actuating injection valves in an engine system having a plurality of injection types | |
| DE3334722C2 (en) | ||
| DE112018002456T5 (en) | VEHICLE CONTROL DEVICE | |
| DE102008005154A1 (en) | Method and device for monitoring a motor control unit | |
| EP0120189B1 (en) | Vehicle transmission control device for monitoring the maximum torque | |
| DE102006044771A1 (en) | Injected fuel actual amount variation determining method for road vehicle, involves injecting actual injected fuel amount and determining variation from comparison between reference amounts, which are formed by two of injection samples |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8110 | Request for examination paragraph 44 | ||
| 8130 | Withdrawal |