EP3063401B1 - Kraftfahrzeug mit verbessertem neustart - Google Patents

Kraftfahrzeug mit verbessertem neustart Download PDF

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Publication number
EP3063401B1
EP3063401B1 EP14793225.5A EP14793225A EP3063401B1 EP 3063401 B1 EP3063401 B1 EP 3063401B1 EP 14793225 A EP14793225 A EP 14793225A EP 3063401 B1 EP3063401 B1 EP 3063401B1
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EP
European Patent Office
Prior art keywords
engine
temperature
computer
value
motor vehicle
Prior art date
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Active
Application number
EP14793225.5A
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English (en)
French (fr)
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EP3063401A1 (de
Inventor
Mehdi Besseghair
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
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PSA Automobiles SA
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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
    • F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
    • 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
    • F02N2200/04—Parameters used for control of starting apparatus said parameters being related to the starter motor
    • F02N2200/045—Starter temperature or parameters related to it
    • 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
    • F02N2200/122—Atmospheric temperature

Definitions

  • the invention relates to stopping and restarting the combustion engines of motor vehicles, in particular when the latter are repetitive, as in the case of vehicles with automatic engine shutdown when the vehicle stops moving.
  • Such vehicles are known under the Anglo-American name of “STT” for “Stop and Start” or “to stop and start” in French.
  • the aim of the invention is to provide a vehicle in which a reliable temperature value of the rotating machine is available in the vehicle when the latter is restarted.
  • An additional aim of the invention is to provide such a vehicle in which this value is obtained by means which are inexpensive and simple to implement.
  • a motor vehicle comprising a combustion engine, an engine computer configured to control at least one combustion parameter of the engine, a rotating electrical machine which rotating electrical machine is a machine for driving the rotation of the engine.
  • combustion engine on start-up and comprises a sensor measuring a temperature of the rotary electrical machine, characterized in that the temperature sensor and the engine computer are configured such that when the combustion engine is switched off the temperature sensor supplies the engine computer a temperature value of the rotating electrical machine and the engine computer estimates a temperature value of the rotating electrical machine reached by the rotating electrical machine when the combustion engine is restarted by said rotating electrical machine after said switching off the combustion engine using p for this estimate the temperature of the rotating electrical machine when the combustion engine is switched off.
  • the engine computer is configured to estimate the value on restarting of the temperature of the rotating electrical machine by using a value for the duration of the combustion engine being switched off.
  • the vehicle comprises a vehicle computer (6) controlling at least one parameter of a component of the vehicle which component is distinct from the combustion engine and the vehicle computer is configured to provide the value for the duration of the combustion engine being extinguished. engine control unit.
  • the engine computer is configured to estimate the value on restarting of the temperature of the rotating electrical machine by using an ambient temperature value.
  • the vehicle comprises a vehicle computer controlling at least one parameter of a component of the vehicle which component is distinct from the combustion engine and the vehicle computer is configured to supply the ambient temperature value to the engine computer.
  • the engine computer is configured to store at least one value indicative of a thermal behavior of the rotating electrical machine and to establish from this value a law of temperature decrease of the rotating electrical machine as a function of time.
  • the engine computer and the rotating electrical machine are configured so that the engine computer supplies the estimated temperature to the rotating electrical machine when the vehicle is restarted.
  • the rotating electrical machine comprises a stator and the estimated temperature value of the rotating electrical machine as well as the temperature value of the rotating electrical machine when the combustion engine is switched off are temperature values of the stator of the electrical machine. rotating.
  • the rotating electrical machine is an alternator-starter.
  • the accompanying figure shows an alternator-starter 1 and an engine block 2.
  • the alternator-starter 1 is provided with a temperature sensor 3 which takes the temperature of the stator of the alternator-starter.
  • An engine computer 4 controls the engine combustion parameters and in particular the quantity of fuel supplied to the combustion chambers during each engine cycle.
  • the engine computer 4 is connected to the stator temperature sensor 3 by a link 5 such that the stator temperature is supplied to the engine computer 4 in particular when the vehicle is in operation.
  • a vehicle computer 6, also called BSI for “intelligent service box” is fitted to the present vehicle, the role of which vehicle computer 6 is to control a certain number of vehicle components which are distinct from the combustion engine, and also to take samples. operating data of certain components of the vehicle other than the engine, such as air conditioning, lighting and battery units.
  • the alternator-starter 1 continuously sends the temperature of the stator to the engine computer 4 and to the vehicle computer 6.
  • the link 5 represented by a single line here symbolizes a LIN / CAN network of the vehicle for “Local Interconnect Network / Controller Area Network” according to the Anglo-American phrase corresponding to “local interconnection network / controller area network” in French .
  • the starter-alternator 1 therefore sends this temperature value continuously to the engine computer 4 and to the vehicle computer 6 via the LIN / CAN network.
  • the alternator -starter 1 sends the last temperature information in the last LIN / CAN frame, before stopping.
  • the engine computer 4 stores this information in the form of a mirror temperature throughout the vehicle's standby phase, which mirror temperature will be used when the vehicle is restarted.
  • the memory of the engine computer 4 is used here to store the last temperature of the alternator-starter 1 rather than redesigning an alternator-starter with its own memory.
  • the computers 4 and 6 are reset and the engine computer 4 requests certain information to the vehicle computer 6, such as the ambient temperature and the vehicle's time to fall asleep, which is information available in the vehicle computer 6.
  • the engine computer 4 uses this information to calculate an estimated temperature of the stator of the alternator-starter 1. This calculation here takes into account the thermal parameters of the alternator-starter 1 including for example its thermal resistivity and the type of metal that constitutes it. The engine computer 4 establishes from these parameters a thermal decrease curve of the stator of the alternator-starter 1 over time. The calculated temperature is then sent to the alternator-starter 1 in the first wake-up frame of the LIN / CAN network symbolized by link 5
  • the engine computer 4 therefore uses the temperature stored when the vehicle is stationary as well as the information supplied by the vehicle computer 6 when the vehicle is restarted to calculate an estimated temperature of the stator.
  • the engine ECU 4 then sends this estimated temperature to the alternator-starter 1.
  • the alternator-starter 1 uses this temperature updated by the engine ECU 4 as a reference to continue to continuously estimate its temperature and send the information of temperature at motor controller 4.
  • the memory of the engine computer 4 is used here to save one or more parameters including the temperature of the alternator-starter 1 before the vehicle is stopped.
  • a theoretical temperature is estimated in the engine computer 4 during restarting in order to serve as a reference for the alternator-starter 1 when it is started up.
  • the apparatus of which the temperature is stored is a rotary electric machine for driving the combustion engine for the purposes of starting the latter, such as an alternator-starter or a reversible alternator.
  • the temperature of a rotating electric machine is stored and estimated, which may be of another nature, such as an electric motor for propelling the vehicle, an electric motor for power steering, or even an electric air conditioning motor.
  • such a device makes it possible to solve the problem of the absence of read only memory or ROM memory for Read Only Memory according to the Anglo-American expression on such rotating machines. It is of course possible to add memory to the rotating machine, but for reasons of cost, such a solution is of limited interest compared to the device described here which is based on a modification of the programming of the engine ECU.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Claims (9)

  1. Kraftfahrzeug mit einem Verbrennungsmotor (1,2,3,4), einem Motorcomputer (4), der konfiguriert ist, um mindestens einen Verbrennungsparameter des Motors (1,2,3,4) zu steuern , einer rotierenden elektrischen Maschine (1), die rotierende elektrische Maschine (1) ist eine Maschine zum Antreiben des Verbrennungsmotors (1,2,3,4) in Rotation beim Start und umfasst einen Sensor (3), der eine Temperatur
    der rotierenden elektrischen Maschine (1) misst, charakterisiert in dass der Temperatursensor (3) und der Motorcomputer (4) sind so konfiguriert, dass der Temperatursensor (3) beim Ausschalten des Verbrennungsmotors (1,2,3,4) den Motorcomputer (4) mit einem Temperaturwert der rotierenden elektrischen Maschine (1) und der Motorsteuerung versorgt Einheit (4) führt eine Abschätzung eines Wertes der Temperatur des Motors elektrischen Dreh (1) von der Maschine erhaltene elektrischen Dreh (1) zu einer Neustart Kraftmaschine (1,2,3,4) durch die rotierende elektrische Maschine (1) nach dem Verbrennungsmotor wird abgeschaltet (1,2,3,4) unter Verwendung der Schätzung für die Temperatur der elektrischen Maschine rotierend (1) zum Motor, der die Verbrennung (1,2,3,4).
  2. Kraftfahrzeug nach Anspruch 1, dadurch gekennzeichnet, dass der Motorcomputer (4) so konfiguriert ist, auf einen Neustart der Temperatur der den Wert abzuschätzen rotierenden elektrischen Maschine (1) einen Wert der Dauer der Verwendung von Verbrennungs off - Motor (1,2,3,4).
  3. Kraftfahrzeug nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass es einen Fahrzeugcomputer (6) umfasst, der mindestens einen Parameter einer Komponente des Fahrzeugs steuert, wobei sich diese Komponente von dem Verbrennungsmotor (1,2,3,4) und dem Fahrzeug unterscheidet Der Computer (6) ist so konfiguriert, dass er den Motorcomputer (4) mit dem Wert für die Ausschaltzeit des Verbrennungsmotors (1,2,3,4) versorgt.
  4. Kraftfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Motorcomputer (4) konfiguriert ist, um den Wert beim Neustart der Temperatur der rotierenden elektrischen Maschine (1) unter Verwendung eines Umgebungstemperaturwerts zu schätzen.
  5. Kraftfahrzeug nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass es einen Fahrzeugcomputer (6) umfasst, der mindestens einen Parameter einer Komponente des Fahrzeugs steuert, wobei sich diese Komponente von dem Verbrennungsmotor (1,2,3,4) und dem Fahrzeug unterscheidet Computer (6) konfiguriert ist, um den Lieferung des Umgebungstemperaturwertes zu dem Motorcomputer (4).
  6. Kraftfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Motorcomputer (4) so konfiguriert ist, dass er mindestens einen Wert speichert, der ein thermisches Verhalten der rotierenden elektrischen Maschine (1) anzeigt, und aus diesem Wert ein Gesetz von festlegt Temperaturabfall
    der rotierenden elektrischen Maschine (1) in Abhängigkeit von der Zeit.
  7. Kraftfahrzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Motorcomputer (4) und
    die elektrische Rotationsmaschine (1) so konfiguriert sind, dass der Motorcomputer (4) beim Neustart des Fahrzeugs die geschätzte Temperatur liefert an der rotierenden elektrischen Maschine (1).
  8. Kraftfahrzeug nach einem der vorhergehenden Ansprüchen, dadurch gekennzeichnet dass die rotierende elektrische Maschine (1) umfasst einen Stator und den geschätzten Temperaturwert der rotierenden elektrischen Maschine (1) als auch den Temperaturwert der elektrischen Maschine Rotations (1) zum Verbrennungsmotor ausgeschaltet ist (1,2,3,4) sind Werte Temperatur des Stators der rotierenden elektrischen Maschine (1).
  9. Kraftfahrzeug nach einem der vorhergehenden Ansprüchen, dadurch gekennzeichnet, dass die rotierende elektrische Maschine (1) ist ein Anlassergenerator.
EP14793225.5A 2013-10-29 2014-09-26 Kraftfahrzeug mit verbessertem neustart Active EP3063401B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1360573A FR3012528B1 (fr) 2013-10-29 2013-10-29 Vehicule automobile a redemarrage ameliore
PCT/FR2014/052429 WO2015063384A1 (fr) 2013-10-29 2014-09-26 Vehicule automobile a redemarrage ameliore

Publications (2)

Publication Number Publication Date
EP3063401A1 EP3063401A1 (de) 2016-09-07
EP3063401B1 true EP3063401B1 (de) 2021-05-19

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Application Number Title Priority Date Filing Date
EP14793225.5A Active EP3063401B1 (de) 2013-10-29 2014-09-26 Kraftfahrzeug mit verbessertem neustart

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EP (1) EP3063401B1 (de)
FR (1) FR3012528B1 (de)
WO (1) WO2015063384A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3074104A1 (fr) * 2017-11-30 2019-05-31 Orange Moteur a reglage predictif, controleur de moteur et procede de reglage automatique de moteur

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7631626B1 (en) * 2008-08-04 2009-12-15 Detroit Diesel Corporation Method to protect starter from overheating

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946808A1 (de) * 1999-09-29 2001-04-19 Bosch Gmbh Robert Elektrische Startervorrichtung für eine Brennkraftmaschine
EP1891325B1 (de) * 2005-05-26 2019-08-21 Volvo Lastvagnar AB Stromversorgungssteuerverfahren eines anlassers
US7743649B1 (en) * 2008-12-18 2010-06-29 Gm Global Technology Operations, Inc. Cranking capability estimation for a vehicular starting system
KR101286823B1 (ko) * 2009-12-31 2013-07-17 현대모비스 주식회사 전동 파워 스티어링 시스템 과열 보호 방법

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7631626B1 (en) * 2008-08-04 2009-12-15 Detroit Diesel Corporation Method to protect starter from overheating

Also Published As

Publication number Publication date
FR3012528A1 (fr) 2015-05-01
FR3012528B1 (fr) 2018-01-12
WO2015063384A1 (fr) 2015-05-07
EP3063401A1 (de) 2016-09-07

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