WO2018015083A1 - Procédé de fonctionnement d'un système de véhicule automobile - Google Patents

Procédé de fonctionnement d'un système de véhicule automobile Download PDF

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Publication number
WO2018015083A1
WO2018015083A1 PCT/EP2017/064877 EP2017064877W WO2018015083A1 WO 2018015083 A1 WO2018015083 A1 WO 2018015083A1 EP 2017064877 W EP2017064877 W EP 2017064877W WO 2018015083 A1 WO2018015083 A1 WO 2018015083A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
motor vehicle
control unit
operating state
drive system
Prior art date
Application number
PCT/EP2017/064877
Other languages
German (de)
English (en)
Inventor
Thomas Müller
Christian Piasecki
Original Assignee
Volkswagen Aktiengesellschaft
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 Volkswagen Aktiengesellschaft filed Critical Volkswagen Aktiengesellschaft
Publication of WO2018015083A1 publication Critical patent/WO2018015083A1/fr

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0808—Diagnosing performance data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/44—Testing lamps
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks

Definitions

  • the invention relates to a method for operating a motor vehicle system, for example a drive system of a motor vehicle.
  • a control unit (motor control) is used regularly, which according to the drive system in a memory of the
  • Engine control stored and controlled by an arithmetic unit of the engine control routines controls To monitor such a drive system, analysis routines stored in the memory of the motor control can also be provided, which monitor the drive system in normal operation (on-board diagnosis) and, in the event of malfunctions, generate system fault codes, which are stored in a fault memory.
  • System error codes which are generated by a motor controller and stored in an error memory, often do not refer exactly to a defective component, because in most cases several components can be responsible for the occurrence of the respective error code. Therefore, despite the stored system error codes, it may be costly to identify the malfunctioning component of a drive system to replace or repair it.
  • Combustion engine and at least one electric traction motor includes, however, can no longer be determined on the basis of such a system error code, whether the detected uneven running in a malfunction of the internal combustion engine, the electric Travel drive motor or one of these two drive motors, if necessary, mutually coupling clutch is justified. For example, a relatively high
  • Resistance torque which is due to a relatively high charging current from a generator or a (temporarily acting as a generator) electric traction motor is applied to a driving this internal combustion engine, to a troubled idling of
  • WO 2015/158594 A1 a method is known in which by means of an external diagnostic device at least one parameter set is transmitted to a control unit of a motor vehicle system, wherein the control unit sets an operating state of the motor vehicle system taking into account the parameter set. Then at least one parameter is determined to the operating condition and transmitted from the control unit to the diagnostic device and of this with respect to a functional capability of the motor vehicle system
  • DE 199 52 391 A1 describes a system comprising a control device and a drive component, in particular a service system for motor vehicles, in which a wireless data transmission between the control device and the drive component is provided to at least one size describing the operation of the drive component to the control device to transfer.
  • a comparable system is also known from EP 1 069 422 A1.
  • the invention had the object of specifying a possibility to improve a development of a motor vehicle system, for example a hybrid drive system of a motor vehicle, and / or a fault analysis in such a motor vehicle system.
  • a motor vehicle system for example a hybrid drive system of a motor vehicle, and / or a fault analysis in such a motor vehicle system.
  • This object is achieved by means of a method according to the patent claim 1.
  • Advantageous embodiments of the method according to the invention are objects of the further claims and / or emerge from the following description of the invention.
  • the invention is based on the idea to create a possibility by means of an external simulation device (in particular by means of a so-called workshop tester or by means of a test bench computer), which is data transfer with a control unit, for example with a central motor control of a drive system connectable, the control software stored on the control unit according to which the motor vehicle system is driven in a normal mode, to be manipulated in such a way that the motor drive system is controlled in one
  • an external simulation device in particular by means of a so-called workshop tester or by means of a test bench computer
  • a control unit for example with a central motor control of a drive system connectable
  • the control software stored on the control unit according to which the motor vehicle system is driven in a normal mode, to be manipulated in such a way that the motor drive system is controlled in one
  • a “motor vehicle system” is a group of mechanical and / or electrical components which are in operative connection with one another, at least as a result of a controlling or evaluating link by the control unit
  • Motor vehicle especially a wheel-based motor vehicle (in particular car or truck) understood.
  • the motor vehicle system may preferably be or include a drive system of a motor vehicle.
  • a "propulsion system” is understood to mean a cruise control system in which at least one of the components is a propulsion engine, i.e., a propulsion engine used to directly or indirectly provide propulsion power to the vehicle.
  • Controlling component component wherein by means of an external simulation device, which is connectable to the data transfer to the control unit, control instructions to the Control unit to be transmitted, according to the invention provided that by means of the control instructions, the control unit is influenced such that this emanates from a different than the (actual) present operating state of the component.
  • control device Such an influencing of the control device can be effected in particular by a manipulation of measured values and other parameters by the simulation device, wherein the
  • Measured values or other parameters represent the (actually) present operating state of the component and are transmitted to the control device (in particular from the simulation device or from the component itself).
  • An example of such an influencing of the control device is the influencing of a (from the electrical voltage derived) value for the state of charge, a battery of the motor vehicle system, for example, a traction battery of a drive system, wherein the control unit as a result of the influence of the simulation device a value is given for the state of charge, which does not correspond to the actual state of charge, the (traction) battery at the time of performing the method corresponds.
  • a relatively low value for the state of charge operation of the (traction) battery can be simulated at relatively low operating temperatures (for example, as a result of a cold start of the drive system at relatively low ambient temperatures) because, as is known, in at least the conventional battery types.
  • Entlade aise and the battery power to a considerable extent is temperature dependent.
  • traction battery As a “traction battery” is understood a battery that is at least provided for supplying an electric traction drive motor of a drive system with electrical energy for generating a traction drive power.
  • the inventive method allows in a particularly advantageous manner, a targeted analysis of the behavior of the entire motor vehicle system or certain components thereof in dependence on an operating condition of that component for which the
  • Control unit by the influence of the simulation device of a different than the actual existing operating state emanates.
  • the control unit based on parameters that are assigned to the assumed operating state of a first component, controls a second component and placed in an operating state influenced thereby.
  • the driving of the second component can be carried out in particular by means of control routines stored in the control unit, which are provided for normal operation of the motor vehicle system.
  • the inventive method which can be carried out in principle in an advantageous manner with the aim of a functional check, the operating behavior of the motor vehicle system, such as a drive system, to investigate a total of, for example, a simulated low operating temperature of the traction battery.
  • an operating condition for an internal combustion engine of the hybrid propulsion system may be adjusted to be in accordance with the normal routine control routines stored on the controller if the traction battery were to actually have the simulated operating temperature .
  • Such an approach can greatly simplify fault diagnosis because, for example, it is no longer necessary to wait for the traction battery to cool to reach the intended operating temperature, or to no longer require the traction battery to be active at a particularly low operating temperature cool, as for example, by a temporary arrangement of the motor vehicle system or in particular a motor vehicle system comprehensive motor vehicle in a corresponding
  • the function check may be carried out in particular with the aim of error diagnosis, i. finding a malfunction of the motor vehicle system, or in the context of a development of the motor vehicle system are used.
  • protective limits for the operating state of the second component are taken into account in the definition of the control instructions which can be transmitted from the simulation device to the control device. This is to avoid that by influencing the controller by means of the simulation device protection limits are exceeded in the operation of the second component, which can actually not be exceeded in a normal operation based on the control routines stored for this purpose in the control unit.
  • the functional check is carried out based on parameters that are transmitted from the control unit to the simulation unit.
  • a particularly flexible and / or complex functional check can be carried out, since these are not based on possible analysis routines that can be stored in the control unit. is limited. It may also be particularly advantageous that it may require significantly less effort to update a software stored on the simulation device and thus also analysis routines implemented in this software as a corresponding one
  • Control unit often easier or at least less expensive to keep ready in a simulation device or workshop tester required for a comprehensive functional verification computing power and / or storage capacity.
  • control unit it may also be expedient for the or a functional check to be carried out by the control unit, for example as a result of carrying out the method according to the invention, generating a (possibly renewed) entry of a system error code into an error memory of the control unit based on a fault analysis routine stored in the control unit becomes.
  • control instructions can advantageously be transmitted to the control unit using the assumed discrete (eg operating state of the traction battery at relatively low, ie below a defined operating temperature) and / or quantitatively defined (eg operating state of the traction battery at an operating temperature of 0 C) correspond to operating conditions of the first component.
  • Components are thus to be understood that they are present at least once and may be present more than once.
  • the method according to the invention can advantageously be used, for example, in the development of a motor vehicle system to be operated correspondingly or a motor vehicle comprising the motor vehicle system. Furthermore, this can be used to, during maintenance or repair operations (customer service) one of an operator of the
  • Vehicle system or motor vehicle (customer) alleged complaint to simulate or simulate or assess a maintenance or repair measure. Even when carrying out so-called rolling tests of a motor vehicle, a method according to the invention can be implemented advantageously.
  • the operating strategy decides which mode of operation is advantageous or required when. If the internal combustion engine is not available as a drive source due to a fault or simply due to a lack of fuel, only a more or less limited amount can be supplied via the electric drive system
  • Operating state such as a speed or power limit and / or the output of warning or information messages, can via a from the outside, ie by means of the Simulation device, made blocking the start of the engine easily made available.
  • the component temperature of the traction battery in a hybrid or electric vehicle is a significant factor that affects the performance of the entire electric drive system.
  • Vehicle behavior in border areas e.g., a very cold or hot traction battery.
  • vehicles are conditioned in air conditioning or refrigeration chambers accordingly.
  • the conditioning of a vehicle and in particular a traction battery to such extreme conditions may be very complex, since the batteries have a high thermal inertia due to their large mass and thus must be preconditioned for a very long time.
  • traction battery control By providing the traction battery control (BCM) with a correspondingly low or high external temperature, i.
  • BCM traction battery control
  • the data transmitted by the BCM to a central engine control with respect to the available battery power then reflect the restrictions corresponding to the predetermined temperature value again. This can significantly reduce the time-consuming preconditioning phases or make them completely superfluous.
  • the behavior of an electric or hybrid vehicle is significantly influenced by the state of charge of the traction battery. Starting from a fully charged battery that provides full power output but little or no power, the behavior changes to a more or less wide range with near constant performance, ranging from a low charge state with decreasing discharge power to the discharge end.
  • electrified drive concepts differ from
  • system behavior can be analyzed in fast motion by displaying the state of charge over time or a distance without the actual state of charge having to change at all or to the same degree. This allows several analysis processes over the actual useful range of the state of charge, without having to repeatedly bring the battery time-consuming to a defined charge level.
  • a deep discharge state can also be produced by a function present on the BMC or a central engine control or temporarily stored.
  • Hybrid and vehicles with an automatic start / stop system may have several devices for starting the internal combustion engine, for example, one in the
  • Propulsion torque is automatically set to the available machines. If only one drive is to be assessed in a defined manner, for example for error analysis or for assessing a repair measure, then an externally definable load distribution between the drive units can also be advantageous here.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un procédé de fonctionnement d'un système de véhicule automobile comportant au moins un composant se trouvant dans un état de fonctionnement et une unité de commande commandant le composant. Des instructions de commande sont transmises à l'unité de commande au moyen d'une unité de simulation extérieure pouvant être reliée à l'unité de commande pour transmission de données. L'invention est caractérisée en ce que l'on peut influer sur l'unité de commande au moyen des instructions de commande de sorte que cette unité de commande prend comme point de départ un autre état de fonctionnement que le présent état de fonctionnement du composant. Ce procédé est basé sur l'idée de proposer un moyen pour manipuler le logiciel de commande, qui est stocké en mémoire dans l'unité de commande et conformément auquel le système d'entraînement est entraîné en fonctionnement normal, au moyen d'une unité de simulation extérieure, par exemple au moyen de ce que l'on appelle un appareil de contrôle en atelier ou au moyen d'un ordinateur de banc d'essai qui peut être relié par transmission de données à une unité de commande, par exemple une commande de moteur centrale d'un système d'entraînement du système de véhicule automobile, de façon à placer le système d'entraînement dans un état de fonctionnement dans lequel il ne peut pas véritablement venir en raison des conditions marginales dans lesquelles la simulation ou le diagnostic du système d'entraînement est effectué.
PCT/EP2017/064877 2016-07-20 2017-06-19 Procédé de fonctionnement d'un système de véhicule automobile WO2018015083A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016213256.3A DE102016213256A1 (de) 2016-07-20 2016-07-20 Verfahren zum Betreiben eines Kraftfahrzeugsystems
DE102016213256.3 2016-07-20

Publications (1)

Publication Number Publication Date
WO2018015083A1 true WO2018015083A1 (fr) 2018-01-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/064877 WO2018015083A1 (fr) 2016-07-20 2017-06-19 Procédé de fonctionnement d'un système de véhicule automobile

Country Status (2)

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DE (1) DE102016213256A1 (fr)
WO (1) WO2018015083A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694408A (en) 1986-01-15 1987-09-15 Zaleski James V Apparatus for testing auto electronics systems
DE19952391A1 (de) 1999-10-29 2000-06-29 Voith Turbo Kg Servioceschnittstelleneinrichtung, Servicesystem und Verfahren zur Wartung und Kontrolle der Funktionsweise einer Komponente, insbesondere einer Funktions- oder Antriebskomponente
EP1069422A1 (fr) 1999-07-16 2001-01-17 Iveco Magirus Ag Système de diagnostic à distance pour véhicules automobiles
EP1116955A2 (fr) * 1991-01-30 2001-07-18 Edge Diagnostic Systems Systhème interactif de diagnose
US6314375B1 (en) 1997-03-10 2001-11-06 Honda Giken Kogyo Kabushiki Kaisha Method and device for diagnosis for vehicle
WO2002037399A1 (fr) * 2000-11-03 2002-05-10 Detroit Diesel Corporation Simulateur de capteur pour l'etalonnage et la maintenance de moteurs a combustion interne
US20140005881A1 (en) * 2012-07-02 2014-01-02 Carmen Hardesty Automotive Diagnostic System
WO2015158594A1 (fr) 2014-04-16 2015-10-22 Volkswagen Aktiengesellschaft Procédé de diagnostic d'un système de véhicule automobile, appareil de diagnostic d'un système de véhicule automobile, appareil de commande d'un système de véhicule automobile et véhicule automobile

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10254388A1 (de) * 2002-11-18 2004-05-27 Volkswagen Ag Verfahren und Vorrichtung zum Bandende- oder Werkstatt-Test von Fahrzeug-Assistenzsystemen
DE102009013563A1 (de) * 2009-03-17 2010-04-01 Daimler Ag Prüfvorrichtung zum Testen und/oder Überprüfen von Funktionen eines Steuergeräts und/oder einer Steuereinheit
DE102015006202A1 (de) * 2015-05-13 2015-12-03 Daimler Ag Mobile Vorrichtung mit einer speicherprogrammierbaren Steuerung zur Simulation eines Fahrzeugumfeldes

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694408A (en) 1986-01-15 1987-09-15 Zaleski James V Apparatus for testing auto electronics systems
EP1116955A2 (fr) * 1991-01-30 2001-07-18 Edge Diagnostic Systems Systhème interactif de diagnose
US6314375B1 (en) 1997-03-10 2001-11-06 Honda Giken Kogyo Kabushiki Kaisha Method and device for diagnosis for vehicle
EP1069422A1 (fr) 1999-07-16 2001-01-17 Iveco Magirus Ag Système de diagnostic à distance pour véhicules automobiles
DE19952391A1 (de) 1999-10-29 2000-06-29 Voith Turbo Kg Servioceschnittstelleneinrichtung, Servicesystem und Verfahren zur Wartung und Kontrolle der Funktionsweise einer Komponente, insbesondere einer Funktions- oder Antriebskomponente
WO2002037399A1 (fr) * 2000-11-03 2002-05-10 Detroit Diesel Corporation Simulateur de capteur pour l'etalonnage et la maintenance de moteurs a combustion interne
US20140005881A1 (en) * 2012-07-02 2014-01-02 Carmen Hardesty Automotive Diagnostic System
WO2015158594A1 (fr) 2014-04-16 2015-10-22 Volkswagen Aktiengesellschaft Procédé de diagnostic d'un système de véhicule automobile, appareil de diagnostic d'un système de véhicule automobile, appareil de commande d'un système de véhicule automobile et véhicule automobile

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