WO2009092481A1 - Procédé et dispositif de mise en marche et d’arrêt automatique d’un moteur à combustion - Google Patents

Procédé et dispositif de mise en marche et d’arrêt automatique d’un moteur à combustion Download PDF

Info

Publication number
WO2009092481A1
WO2009092481A1 PCT/EP2008/066322 EP2008066322W WO2009092481A1 WO 2009092481 A1 WO2009092481 A1 WO 2009092481A1 EP 2008066322 W EP2008066322 W EP 2008066322W WO 2009092481 A1 WO2009092481 A1 WO 2009092481A1
Authority
WO
WIPO (PCT)
Prior art keywords
environmental data
vehicle
internal combustion
combustion engine
engine
Prior art date
Application number
PCT/EP2008/066322
Other languages
German (de)
English (en)
Inventor
Joerg Zeller
Florian Kloss
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2009092481A1 publication Critical patent/WO2009092481A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
    • F02N11/0833—Vehicle conditions
    • F02N11/0837—Environmental conditions thereof, e.g. traffic, weather or road conditions
    • 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
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • 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
    • B60W30/18—Propelling the vehicle
    • B60W30/192—Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/12—Parameters used for control of starting apparatus said parameters being related to the vehicle exterior
    • F02N2200/125—Information about other vehicles, traffic lights or traffic congestion
    • 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
    • Y02T10/40—Engine management systems

Definitions

  • the invention relates to a method and a device for automatically switching on and off an internal combustion engine, in particular an internal combustion engine of a motor vehicle.
  • the invention can be adapted in all conventional motor vehicles as a comfort function.
  • a disadvantage of such systems is that the mere evaluation of in-vehicle conditions, such as those derived by the position of the monitored controls, a clear identification of traffic situations that would justify a shutdown of the engine can not be done with sufficient certainty.
  • a shutdown of the engine is useful when no gear is engaged and the corresponding switching operation is not yet initiated.
  • the frequency of such conditions depends to a great extent on the driving habits of the respective driver.
  • such automatic shutdown usually work with a predetermined delay of the order of a few seconds. It is therefore assumed that after stand a traffic situation without need for drive over a certain minimum period, this situation with sufficient likelihood will continue to make the then already delayed automatic shutdown of the engine still appear appropriate.
  • An idea of the invention aims to identify the shutdown of internal combustion engines justifying operating situations by evaluating environmental information and to realize an automated activation or deactivation. In the case of motor vehicles, such environmental information often provides a secure means of identifying different traffic situations.
  • a method for automatically starting or shutting down an internal combustion engine of a motor vehicle comprising at least the following steps:
  • the change of the operating state of the engine in the context of the invention is always appropriate or there is a certain When the vehicle is running and the vehicle is stationary, a long-term standstill of the vehicle is to be expected or when the vehicle is stationary with the engine switched off, an early start is to be expected.
  • a minimum configuration suitable for carrying out the method according to the invention consists in a device integrated in a motor vehicle for automatically starting or shutting down the internal combustion engine of this motor vehicle, comprising at least one sensor for acquiring environmental data, at least one data processing unit for evaluating the acquired environmental data and identifying the existing traffic situation and at least a control unit that is designed to make a change of the operating state of the internal combustion engine by starting or stopping when a traffic situation is identified in which this change is expedient.
  • the acquisition of the environmental data can be cyclic, continuous or event-driven.
  • environment data for use within the method according to the invention in principle automatically detectable data are suitable, which allow an assignment to certain traffic situations and can be used for their identification.
  • the identification of the traffic situation can advantageously be done in combination with other identification methods in order to achieve a particularly high identification security.
  • the essential advantage of the procedure according to the invention is that in many cases no delay is required to increase the statistical security in order to identify the traffic situation in question.
  • the decision about the change of the operating state of the internal combustion engine can generally be made immediately after the evaluation of the environmental data indicating the traffic situation in question.
  • unnecessary engine runtime is saved compared to conventional start-stop systems, which reduces the fuel consumption and pollutant emissions of such a vehicle equipped.
  • distance data are recorded as environmental data. These may relate to distances to fixed obstacles in the vehicle environment or distances to other vehicles.
  • Such distance data are often available as output data of a parking aid sensor system integrated in motor vehicles. From such distance data can be derived in an advantageous manner, whether the stoppage of a motor vehicle as a result of approaching an obstacle or preceding vehicle takes place or just a vehicle-specific required holding situation, for example, a short-term existing Vorfahrtssituation arose.
  • optical information about the vehicle environment is detected as ambient data.
  • light signals can be detected as such ambient data. This can be done by camera systems integrated in motor vehicles and / or corresponding optical sensors, which are preferably designed for color recognition.
  • the identification of a traffic light located in the vicinity of the relevant motor vehicle, the display status and preferably the switching times allows in many cases a largely error-free identification of the existing traffic situation and a sufficiently accurate prediction arising subsequent situations that a change of the operating state of the internal combustion engine, for example in the form of its shutdown before a red light until the next start of the motor vehicle, the maximum achievable savings effect, since it can be made virtually instantaneous.
  • a further advantage of the invention is that the sensors required for acquiring the environmental data are already integrated in many vehicles for realizing other functions. This applies in particular to different Stand sensors for parking aids, in vehicles for high demands but also for various camera systems, which are also partly provided to facilitate parking and / or the realization of other Konnfortfunktionen, such as so-called ACC systems (automatic cruise control) are used. Since the engine control and associated with the startup or shutdown of the engine almost exclusively takes place via electronic circuits, in most cases providing a designed for the realization of the method according to the invention software to retrofit a vehicle for the use of the functionality shown with respect the automated connection or disconnection of the engine.
  • ACC systems automated cruise control
  • Fig. 3 is a schematic representation of the components of a device for carrying out the method.
  • step S1 shows an excerpt from a generalized program flowchart of the method according to the invention, which illustrates the steps required to execute the method.
  • step S2 the detection of environmental data from the environment of the motor vehicle takes place.
  • This environmental data is evaluated electronically in step S2 in such a way that the traffic situation associated with this environmental data is identified as precisely as possible.
  • the identification of the traffic situation in a step S3 can either confirm a traffic situation that matches the existing operating state of the internal combustion engine or indicate a changed traffic situation in which a change of the operating state of the internal combustion engine is expedient. If the latter traffic situation is identified, an automatic change of the operating state of the internal combustion engine takes place by starting or stopping in a next step S4.
  • This minimum sequence of program steps can be supplemented and / or superimposed by further measures for changing the operating state of the internal combustion engine, for example safety-related and / or manually effected shut-off processes.
  • FIG. 2 shows an exemplary program flowchart of the method according to the invention. Shown is an automated shutdown.
  • this embodiment there is a constant query of the front sensors of a parking aid sensor. This query corresponds to the detection of environmental data from the environment of the motor vehicle in the sense of the present invention.
  • the output signals of the sensors either provide the information that there is no obstacle within such an observable area, or provide data about the distance between the obstacle and the motor vehicle in the presence of an obstacle in the area in question (step S5).
  • the evaluation of the distance data thus obtained also makes it possible to track the evolution of this distance.
  • an integrated camera system captures optical information about the vehicle environment. This includes pattern and color recognition algorithms that capture light signals and optical switching in color-resolved fashion.
  • a traffic light is detected in connection with the approach to an obstacle or a vehicle ahead and the subsequently occurred vehicle standstill, which blocks the flow of traffic
  • a minimum residence time must be assumed, which is already conditioned by the prescribed switching cycle of the traffic light. It should also be assumed that the vehicle in front will not park in this position as this is likely to be inadmissible in most cases.
  • an identified hazard warning system is to be interpreted which, in connection with the corresponding approach and a vehicle standstill following this approach, will in many cases indicate the achievement of a jam end or a dangerous situation requiring a stop and also a minimum dwell time in the sense of the one shown Procedure expected.
  • the next identifiable switching operation of the traffic light can be used to cause an automatic start of the engine.
  • a holding position at a greater distance to a halt causing traffic lights it may be advantageous if the Automatic starting of the engine takes place when, after the vehicle has stopped, a further increase in the distance to the vehicle ahead is detected.
  • Both the detected switching operation of the traffic light and the beginning of a change in distance are evaluated as indicia of the presence of a traffic situation in which a change of the operating state of the internal combustion engine by starting is appropriate. In this way, a sufficient lead time when starting the engine can be realized, which allows a familiar start immediately after engaging the gear.
  • Fig. 3 shows a schematic representation of the components of an apparatus for performing the method according to the invention.
  • the device comprises distance sensors 2 of a parking aid sensor system and a camera system 5 for detecting the vehicle surroundings. Both forms sensors for acquiring environmental data in the sense of the invention.
  • the output signals of the distance sensors 2 and of the camera system 5 are fed to a data processing unit 3 for evaluation of the acquired environmental data.
  • the data processing unit 3 includes pattern and color recognition algorithms which can detect, for example, color signals in a color-resolved manner for light signals and optical switching processes. With the aid of the evaluated data, the most accurate possible identification of the existing traffic situation takes place, wherein misinterpretations due to the combination of distance and optical information can be largely excluded.
  • the evaluation of the data also includes an examination of the expediency of a change of the operating state of the internal combustion engine 1 by starting or stopping in the respectively identified traffic situation.
  • a control unit 4 is included, which is designed to make a change of the operating state of the internal combustion engine 1 by starting or stopping.
  • the control unit 4 can be created as part of an engine control unit.
  • the control unit 4 ensures that a change of the operating state of the engine only takes place if operating elements relevant to the vehicle operation are in an operating position which is permissible for the upcoming change. For example, this can not be done automatically when a gear is engaged without the clutch has entered.
  • the control unit 4 is also designed so that at any time a manual shutdown or starting the engine is possible or the function of the automated shutdown and / or starting can be switched off completely or partially.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Atmospheric Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

L’invention concerne un procédé et un dispositif de mise en marche et d’arrêt automatique d’un moteur à combustion d’un véhicule automobile. Selon l’invention, au moins les étapes suivantes sont exécutées : Acquisition (S1) de données d’environnement, Analyse (S2) des données d’environnement pour identifier une situation de trafic donnée, Changement (S4) de l’état opérationnel du moteur à combustion par démarrage ou arrêt lorsque la situation de trafic donnée est identifiée (S3). Les données d’environnement sont des informations optiques ou des signaux lumineux provenant de l’environnement du véhicule qui sont acquis par un capteur. Le capteur d’acquisition des données d’environnement fait partie d’un dispositif de détection d’aide au stationnement ou d’un système à caméra.
PCT/EP2008/066322 2008-01-25 2008-11-27 Procédé et dispositif de mise en marche et d’arrêt automatique d’un moteur à combustion WO2009092481A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008006028.3 2008-01-25
DE102008006028A DE102008006028A1 (de) 2008-01-25 2008-01-25 Verfahren und Vorrichtung zum automatischen Zu- und Abschalten eines Verbrennungsmotors

Publications (1)

Publication Number Publication Date
WO2009092481A1 true WO2009092481A1 (fr) 2009-07-30

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Country Link
DE (1) DE102008006028A1 (fr)
WO (1) WO2009092481A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8296030B2 (en) 2010-07-07 2012-10-23 Robert Bosch Gmbh System and method for controlling the engine of a vehicle
DE102017220955A1 (de) * 2017-11-23 2019-05-23 Robert Bosch Gmbh Verfahren zur Steuerung einer Antriebsmaschine eines Fahrzeugs und Antriebsmaschinen-Steuereinrichtung
CN115427673A (zh) * 2020-07-09 2022-12-02 宝马股份公司 用于自动关闭和启动驱动机的装置和方法

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DE102009042309B4 (de) * 2008-10-15 2019-12-24 Continental Teves Ag & Co. Ohg Verfahren und Vorrichtung zur automatischen Motorsteuerung eines Fahrzeugs
DE102009040160B4 (de) * 2009-09-04 2020-02-06 Volkswagen Ag Start-Stopp-Automatik und Verfahren zum Betreiben einer Start-Stopp-Automatik
DE102009051253A1 (de) * 2009-10-29 2011-03-24 Daimler Ag Verfahren und Vorrichtung zum automatischen Stoppen und/oder Starten eines Traktions-Verbrennungsmotors
US20120223781A1 (en) * 2011-03-01 2012-09-06 Lsi Corporation Noise regulated linear voltage controlled oscillator
NL2010241A (nl) * 2011-08-04 2013-03-19 Bosch Gmbh Robert Het uitschakelen van een verbrandingsmotor van een voertuig.
DE102012211420A1 (de) * 2012-07-02 2014-05-22 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum automatischen Ausgeben einer Anweisung zum Einschalten einer Antriebseinheit eines Fahrzeugs
FR2997132B1 (fr) * 2012-10-23 2014-11-28 Peugeot Citroen Automobiles Sa Vehicule et procede de controle du fonctionnement d'une pompe de gavage dudit vehicule
DE102013009792A1 (de) 2013-06-12 2014-12-18 Audi Ag Verfahren zum Betreiben eines Hybridelektrokraftwagens und Hybridelektrokraftwagen
JP5986617B2 (ja) 2013-12-17 2016-09-06 株式会社デンソー 伝動システム
DE102014213776A1 (de) 2014-07-16 2016-01-21 Bayerische Motoren Werke Aktiengesellschaft Betriebsverfahren für Hybridfahrzeug
DE102015206658A1 (de) 2015-04-14 2016-10-20 Bayerische Motoren Werke Aktiengesellschaft Adaptive Start-Stopp-Automatik für ein Kraftfahrzeug mit Automatikgetriebe unter Berücksichtigung von Hindernissen
DE102015215427B4 (de) * 2015-08-13 2019-06-06 Continental Automotive Gmbh Ansteuerung einer Fahrzeugfeststellbremse
DE102015216502A1 (de) * 2015-08-28 2017-03-02 Continental Teves Ag & Co. Ohg Optimierte Start/Stopp Automatik
DE102016219341B4 (de) * 2016-10-06 2023-02-02 Audi Ag Verfahren zum Betrieb wenigstens einer Vorrichtung eines Egofahrzeugs und zugehöriges Kraftfahrzeug
CN109591794B (zh) * 2017-09-30 2021-03-02 惠州市德赛西威汽车电子股份有限公司 一种智能启停方法及系统
US11535278B2 (en) 2017-10-12 2022-12-27 Nissan Motor Co., Ltd. Control method and control device for autonomous vehicle
JP6844714B2 (ja) * 2017-10-26 2021-03-17 日産自動車株式会社 自動運転車両の制御方法および制御装置
DE102021132140A1 (de) 2021-12-07 2023-06-07 Valeo Schalter Und Sensoren Gmbh Verfahren zum Betreiben eines Assistenzsystems eines Kraftfahrzeugs mit zumindest einer Verbrennungskraftmaschine, Computerprogrammprodukt, computerlesbares Speichermedium sowie Assistenzsystem

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US5451820A (en) * 1993-06-16 1995-09-19 Mitsubishi Denki Kabushiki Kaisha Automatic starting and stopping apparatus for an engine
JPH10299531A (ja) * 1997-04-24 1998-11-10 Yazaki Corp アイドルストップスタートシステム
JP2000073808A (ja) * 1998-08-31 2000-03-07 Daihatsu Motor Co Ltd アイドル制御装置
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8296030B2 (en) 2010-07-07 2012-10-23 Robert Bosch Gmbh System and method for controlling the engine of a vehicle
DE102017220955A1 (de) * 2017-11-23 2019-05-23 Robert Bosch Gmbh Verfahren zur Steuerung einer Antriebsmaschine eines Fahrzeugs und Antriebsmaschinen-Steuereinrichtung
CN115427673A (zh) * 2020-07-09 2022-12-02 宝马股份公司 用于自动关闭和启动驱动机的装置和方法

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