EP1799986B1 - Procede et dispositif pour lire des valeurs adaptatives de dispositifs de commande de vehicule a moteur - Google Patents

Procede et dispositif pour lire des valeurs adaptatives de dispositifs de commande de vehicule a moteur Download PDF

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Publication number
EP1799986B1
EP1799986B1 EP05777797A EP05777797A EP1799986B1 EP 1799986 B1 EP1799986 B1 EP 1799986B1 EP 05777797 A EP05777797 A EP 05777797A EP 05777797 A EP05777797 A EP 05777797A EP 1799986 B1 EP1799986 B1 EP 1799986B1
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EP
European Patent Office
Prior art keywords
vehicle control
motor vehicle
control unit
self
adaptation
Prior art date
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Active
Application number
EP05777797A
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German (de)
English (en)
Other versions
EP1799986A1 (fr
Inventor
Heiko Konrad
Maximilian Engl
Marcus Engelke
Mario Wohlwender
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.)
Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D41/1402—Adaptive control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2487—Methods for rewriting
    • F02D41/2493—Resetting of data to a predefined set of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits

Definitions

  • the invention relates to a device for reading out adaptation values of self-adapting functions from a motor vehicle control device to an external read-out device according to the preamble of patent claim 1, and to a method for reading out adaptation values of self-adapting functions according to the preamble of patent claim 9.
  • Self-adapting functions are increasingly used in modern motor vehicle control devices.
  • the aim here is to optimally adapt the controls to individual component tolerances, to aging effects or other deviations.
  • a typical field of application is the adaptation of the engine control as part of the knock control.
  • the result of such complex adaptation methods is a parameter set which, for example, describes the map content of the adapted maps or the weights of the adaptive neural networks.
  • This parameter set is stored in a non-volatile memory in the control unit and is thus known again in the next engine run.
  • the adapted parameter set describes the value contents at the interpolation points specified in the control.
  • the respective interpolation points in the read-out device must be known, as a result of which the read-out devices have to be of very complex and individual design.
  • Similar problems arise in adapted neural networks in which the parameter set describes the weights of the adaptive networks.
  • the object of the invention is to provide a device improved with regard to the aforementioned disadvantages and an improved method for reading out the adaptation values of self-adapting functions.
  • the device for reading out adaptation values of self-adapting functions from a motor vehicle control unit to an external read-out device, comprising a motor vehicle control unit, an external read-out unit and a communication interface between the external read-out unit and the motor vehicle control unit, the motor vehicle control unit having a nonvolatile memory for storing adapted parameters or parameter sets of the self-adapting functions is characterized in that the motor vehicle control unit additionally comprises means for receiving at least one test value set sent by the external readout device and means for calculating at least one adaptation value depending on the test value set and the adapted parameters or parameter sets and means for sending the calculated adaptation value to the external read-out device.
  • the method according to the invention for reading out adaptation values of self-adapting functions of the motor vehicle control unit to the external read-out device, wherein adapted parameters or parameter sets of the self-adapting functions are stored in the motor vehicle control unit, is characterized in that the external read-out device describes a test operating point Sent test set to the motor vehicle control unit and the motor vehicle control unit from the test value set and the adapted parameters or sets of parameters calculated at least one adaptation value and sent to the reader.
  • adaptation values from the motor vehicle control devices can be read out with comparatively simple readout devices and displayed or stored in an easily interpretable form. Since the calculation of the adaptation values is already carried out directly in the control unit, the method or the external output device is independent of the adapted function. As a result, the expenditure for reading out the adaptation values is considerably reduced, since in this case no adaptation of the read-out units is necessary.
  • the test value set describes a test operating point of the self-adapting function.
  • a corresponding operating-point-dependent test value set is transmitted from the readout device to the motor vehicle control device.
  • test value set can advantageously consist of one or more operating point-dependent test values.
  • test value set consists of several operating point-dependent test values, these are advantageously sent simultaneously to the motor vehicle control unit and the calculation of the adaptation values in the motor vehicle control unit is carried out sequentially for the individual operating points.
  • the determined adaptation values then become again sent back to the reader and stored there or further processed.
  • At least one of the self-adapting functions comprises an adaptive map or adaptive neural network.
  • the device according to the invention or the method according to the invention is particularly suitable since in the case of maps the adapted parameter set describes the value contents at the interpolation points specified in the control.
  • the adaptation values are uniquely assigned to the corresponding test operating point and the respective interpolation points no longer need to be known to the read-out device.
  • the readout device no longer has to be adapted. This leads to a significant reduction in costs.
  • the motor vehicle control unit is an engine control unit or a transmission control unit, since such motor vehicle control units often perform many controls by means of self-adapting maps or neural networks.
  • a serial interface is used as the communication interface between motor vehicle control unit and external readout device.
  • the transmission can also be done without contact.
  • the external readout device may advantageously include an internal memory and / or be coupled to other devices, which make further evaluations with the readout adaptation values.
  • the device consists of a motor vehicle control unit SG, which is preferably a motor control unit, an external readout unit AG and a communication interface KE, wherein the communication interface KE is designed as a serial interface.
  • the motor vehicle control device comprises a nonvolatile memory SPSG for storing adapted parameter values or parameter sets p of the at least one self-adapting function, means E2 for receiving at least one test value set t sent by the external read device AG, means B for calculating at least one adaptation value a on the basis of the adapted one Parameter values or parameter sets p and of the test value set t, as well as means A2 for transmitting the calculated or the adaptation values a to the external read-out device AG.
  • the adapted parameter values or parameter sets p may be adapted network or characteristic field parameters.
  • the external reading device AG can be, for example, a normal workshop tester or a device for the development data feedback. It comprises means V for specifying one or more test value sets t, means A1 for transmitting the at least one test value set t, means E1 for receiving the calculated adaptation values a and means SPA for outputting and / or storing the adaptation values a.
  • the readout of the adaptation values a from the motor vehicle control unit SG to the external readout unit AG is carried out as follows.
  • the test value set t prescribed by means V which describes a test operating point, is transmitted by means of A1 to the motor vehicle control unit SG via the communication interface KE.
  • the at least one adaptation value a is calculated from the stored parameter values or parameter sets p, which is transmitted to the external read-out device AG via the communication interface KE by means of A2.
  • the at least one adaptation value a is stored and / or output by means of SPA in the output unit.
  • a plurality of test operating points can also be sent to the motor vehicle control unit SG at the same time.
  • the motor vehicle control unit SG calculates the adaptation values a sequentially for the individual test operating points t and then sends them back to the external read-out device AG, where they are stored or further processed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Of Electric Motors In General (AREA)
  • Testing Of Engines (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

L'invention concerne un dispositif et un procédé pour lire des fonctions auto-adaptatives d'un dispositif de commande de véhicule à moteur sur un dispositif de lecture externe. Ledit appareil comprend un dispositif de commande de véhicule à moteur, un dispositif de lecture externe, et une interface de communication entre le dispositif de lecture externe et le dispositif de commande du véhicule à moteur. Ledit dispositif de commande de véhicule à moteur comprend une mémoire non volatile permettant de stocker des paramètres adaptés ou des ensembles de paramètres des fonctions auto-adaptatives. Selon l'invention, ledit dispositif de commande du véhicule à moteur comprend, de plus, des moyens de réception d'au moins un ensemble de valeurs test transmises par le dispositif de lecture externe, des moyens pour calculer au moins une valeur adaptative en fonction de l'ensemble des valeurs test et des paramètres adaptés ou des ensembles de paramètres, et des moyens pour transmettre au moins une valeur adaptative calculée par le dispositif de lecture externe.

Claims (9)

  1. Dispositif pour lire des valeurs adaptatives calculées par des fonctions auto-adaptatives avec des paramètres adaptés ou des jeux de paramètres dans un appareil de commande de véhicule automobile vers un appareil de lecture externe, dispositif comprenant : un appareil de commande de véhicule, un appareil de lecture externe et une interface de communication entre l'appareil de lecture externe et l'appareil de commande du véhicule,
    - l'appareil de commande du véhicule ayant une mémoire non volatile pour enregistrer des paramètres adaptés ou des jeux de paramètres des fonctions auto-adaptatrices,
    dispositif caractérisé en ce que
    l'appareil de commande de véhicule (SG) comprend en outre :
    - des moyens (E2) pour recevoir au moins un jeu de valeurs de test (t) envoyé par l'appareil de lecture externe (AG),
    - des moyens (B) pour calculer au moins une valeur d'adaptation (A) en fonction d'un jeu de valeurs de test (t) et des paramètres d'adaptation et des jeux de paramètres (p) de la fonction auto-adaptatrice, et
    - des moyens (A2) pour envoyer au moins une valeur d'adaptation calculée (a) vers l'appareil de lecture externe (AG).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    le jeu de valeurs de test (t) décrit un point de fonctionnement de test de la fonction auto-adaptatrice.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    le jeu de valeurs de test (t) se compose d'une ou plusieurs valeurs de test dépendant du point de fonctionnement.
  4. Dispositif selon la revendication 3,
    caractérisé en ce que
    pour un jeu de valeurs de test (t) qui se compose de plusieurs valeurs de test dépendant du point de fonctionnement, on effectue séquentiellement le calcul des valeurs d'adaptation (a).
  5. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce qu'
    au moins l'une des fonctions auto-adaptatrices comporte un champ de caractéristiques adaptatif ou un réseau neuronal adaptatif.
  6. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    l'appareil de commande de véhicule (SG) est un appareil de commande de moteur ou un appareil de commande de boîte de vitesses.
  7. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    l'interface de communication (KE) est une interface série.
  8. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    l'appareil de lecture (AG) comporte une mémoire (SPA) pour mémoriser au moins une valeur d'adaptation et/ou il peut être couplé à d'autres appareils.
  9. Procédé de lecture de valeurs d'adaptation calculées par des fonctions auto-adaptatrices à l'aide de paramètres adaptés ou de jeux de paramètres, dans un appareil de commande de véhicule automobile vers un appareil de lecture externe,
    l'appareil de commande du véhicule contenant en mémoire des paramètres d'adaptation ou des jeux de paramètres des fonctions auto-adaptatrices,
    procédé caractérisé en ce que
    l'appareil de lecture externe (AG) envoie au moins un jeu de valeurs de test (t) décrivant un point de fonctionnement de test vers l'appareil de commande de véhicule (SG), et cet appareil de commande (SG) calcule à partir du jeu de valeurs de test (t) et des paramètres adaptés ou des jeux de paramètres (p) de la fonction auto-adaptatrice, au moins une valeur d'adaptation (a) et l'envoie à l'appareil de lecture (AG).
EP05777797A 2004-09-30 2005-09-07 Procede et dispositif pour lire des valeurs adaptatives de dispositifs de commande de vehicule a moteur Active EP1799986B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004047542A DE102004047542A1 (de) 2004-09-30 2004-09-30 Vorrichtung und Verfahren zum Auslesen von Adaptionswerten aus Kraftfahrzeug-Steuergeräten
PCT/EP2005/009606 WO2006037414A1 (fr) 2004-09-30 2005-09-07 Procede et dispositif pour lire des valeurs adaptatives de dispositifs de commande de vehicule a moteur

Publications (2)

Publication Number Publication Date
EP1799986A1 EP1799986A1 (fr) 2007-06-27
EP1799986B1 true EP1799986B1 (fr) 2011-08-03

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EP05777797A Active EP1799986B1 (fr) 2004-09-30 2005-09-07 Procede et dispositif pour lire des valeurs adaptatives de dispositifs de commande de vehicule a moteur

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Country Link
US (1) US7424362B2 (fr)
EP (1) EP1799986B1 (fr)
DE (1) DE102004047542A1 (fr)
WO (1) WO2006037414A1 (fr)

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
DE102006032466B3 (de) * 2006-07-13 2007-09-13 Siemens Ag Verfahren und System zur Kennlinienadaption eines Mengensteuerventils
DE102010015132B4 (de) * 2010-04-16 2024-04-18 Volkswagen Ag Datenerhebungsverfahren und Datenerhebungsvorrichtung für ein Fahrzeug
SE537438C2 (sv) * 2013-06-10 2015-04-28 Scania Cv Ab Förfarande för övervakning och lagring av driftstorheter i en förbränningsmotor
DE102019210923A1 (de) * 2019-07-24 2021-01-28 Zf Friedrichshafen Ag Regelbasiertes System zur Überwachung eines neuronalen Netzes
DE102021102030A1 (de) 2021-01-29 2022-08-04 Bayerische Motoren Werke Aktiengesellschaft Echtzeit-Ermittlung einer Frischluftmasse im Zylinder

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Also Published As

Publication number Publication date
US7424362B2 (en) 2008-09-09
US20070174503A1 (en) 2007-07-26
DE102004047542A1 (de) 2006-04-27
EP1799986A1 (fr) 2007-06-27
WO2006037414A1 (fr) 2006-04-13

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