WO2018130435A1 - Procédé de diagnostic et système de diagnostic pour un véhicule - Google Patents

Procédé de diagnostic et système de diagnostic pour un véhicule Download PDF

Info

Publication number
WO2018130435A1
WO2018130435A1 PCT/EP2018/050099 EP2018050099W WO2018130435A1 WO 2018130435 A1 WO2018130435 A1 WO 2018130435A1 EP 2018050099 W EP2018050099 W EP 2018050099W WO 2018130435 A1 WO2018130435 A1 WO 2018130435A1
Authority
WO
WIPO (PCT)
Prior art keywords
diagnostic
time information
timer
control unit
synchronization
Prior art date
Application number
PCT/EP2018/050099
Other languages
German (de)
English (en)
Inventor
Roland Porsch
Original Assignee
Siemens 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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2018130435A1 publication Critical patent/WO2018130435A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0081—On-board diagnosis or maintenance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0072—On-board train data handling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
    • B61L15/0094—Recorders on the vehicle

Definitions

  • the invention relates to a diagnostic method and a diagnostic system for a vehicle, in particular for a rail vehicle.
  • the generation and evaluation of diagnostic messages plays an increasing role in the operation and maintenance of a vehicle.
  • Most control processes within the vehicle is at least one subsystem control unit zugeord ⁇ net.
  • the subsystem controller has the function of each generate an associated pre-defined diagnostic message at Eintre ⁇ th of certain events.
  • a timer of the respective Subsystemsteu ⁇ erhim which of the diagnostic message generation for the determination of the time of ER is required as a real time clock, in particular real-time clock to form.
  • the real-time generator can be designed as a buffered real-time generator, ie as a real-time generator, which continues to run when the diagnostic system that has been switched off, which is designed to execute the diagnostic method, is switched off.
  • ge ⁇ -buffered and / or non-buffered timers to synchronize the timing of the respective subsystem control unit. The synchronization of a large number of subsystem control However, units take a comparatively long time. In particular during a start-up phase, for example during a boat, of the diagnostic method carrying out the diagnostic system, in which many timers are not yet synchronized, it is not possible to arrange a plurality of diagnostic messages chronologically.
  • This object is achieved umfas ⁇ transmitted by a diagnostic method of generating a diagnostic message by means of a decentralized subsystem control unit providing a time Informa ⁇ tion by means of a timer of the subsystem control unit, providing a reference time information representing a real-time, synchronizing the timing device of the sub ⁇ system control unit on the basis of Reference time information and providing a relative time information based on the time information, which represents an existing between the generation of the diagnosis message and the synchronization of the timer time ⁇ duration.
  • the subsystem control unit often generates diagnostic messages after the start of the overall system before the timer of the subsystem control unit is synchronized.
  • the reason is that the Subsys ⁇ temêt nie often performs a self-test a connected component of the vehicle at an early stage after the Power On ⁇ th.
  • the timer does not yet have a synchronized real time in this early phase.
  • an evaluation of the time stamp of the diagnostic message is not possible or only with great effort.
  • control network can be understood as a network for controlling basic vehicle functions. These basic vehicle functions include, in particular, driving with drive, roll and brake phases, control of the vehicle doors and / or human-machine communication Alternatively or additionally, the term "control network" can be understood as an operator network, which is based, for example, on a passenger information system.
  • the control network is preferably formed as an Ethernet network out ⁇ .
  • the control network can be designed as a Profinet network.
  • the control network may also have a ring topology.
  • the decentralized subsystem control unit is designed, for example, as drive control, brake control, control of the vehicle door system, control of a man-machine interface for input of information by the driver and / or output of information to the vehicle driver, control of a vehicle safety device, etc.
  • the provision of the reference time information is preferably carried out by means of a real timer.
  • the expert understands the term "real time”, preferably called coordinated real ⁇ time, often abbreviated as UTC under the expert expression (Coordinated Universal Time).
  • Generating the diagnostic message preferably comprises generating triggered by a predefined event.
  • An example of a diagnostic message is an error message whose generation is triggered by control data that does not fulfill a predefined plausibility criterion.
  • the timer of the decentralized subsystem control unit is preferably designed as a software component.
  • the timer receives a clock signal from a hard ware ⁇ component via an interrupt request (inter- rupt-Request).
  • interrupt request inter- rupt-Request
  • the skilled person will understand the term "synchronizing" preferably such that the timer of the subsystem control unit makes a request for reference time information.
  • the timer receives the reference time information (embedded in a message, for example)
  • the synchronization is performed using NTP (FIG. NTP:. Network time Protocol) After synchronizing the provided by the timer Zeitin ⁇ formation of the reference time information and the timer is considered to be "synchronized" corresponds.
  • the Subsystemsteu- erhim own time information leads to a start of the overall system with its local clock until a syn ⁇ chronization, for example with an NTP server is done and "synchronized" the state is entered after the synchronization is the.
  • a latency which represents at least one transmission duration of the reference time information to the subsystem control unit, can be taken into account.
  • a preferred embodiment of the procedure according to the invention Rens comprising: determining a diagnostic real-time information representing a diagnostic real-time point of generating the Diagno ⁇ Semel dung, with reference to the relative time information and the reference time information. Determining the diagnostic real-time information is preferably carried out by calculating a difference between reference time Informa ⁇ tion and relative time information is calculated.
  • time in the loading handle "diagnostic real-time” preferably as a Festge ⁇ laid point within a reasonable give ⁇ NEN means of the timer period, the position of the timing by Zeitein- units (eg seconds, minutes, days, weeks and / or months) and is based on a zero point.
  • the diagnosis-real-time information is determined before the synchronization on the basis of the relative time information and the reference time information and determined after the synchronization on the basis of a time information provided by the synchronized timer.
  • Timer provided time information as Diagnoseecht ⁇ time information used. This provides a particularly convenient ⁇ even further is because the Diagnoseechtzeitinfor- mation after synchronizing follows directly from the description provided by the synchronized timer time information and the diagnostic message may be forwarded immediately after an entry of the diagnostic real-time information determined for evaluation (ie, it no longer needs to wait for synchronization).
  • a further preferred embodiment of the diagnostic method according to the invention comprises: switching on the decentralized sub ⁇ system control unit, starting the timer on the switch ⁇ th out, incrementing a counter value after a predetermined period of time after starting or a last
  • a further preferred embodiment of the diagnostic method according to the invention comprises: storing the diagnostic message by means of a memory unit of the subsystem control unit for ⁇ at least until synchronization.
  • the diagnosis time information is preferably determined, namely preferably based on the relative time information and the reference time information.
  • the diagnostic message by means of the Speicherein- the subsystem control unit integrated stored.
  • the reference time information can be used to determine the diagnostic real-time information related to the relative time information.
  • the storage of the diagnostic counter value is carried out by entering the diagnosis counter value in the diagnostic message. Since the diagnostic message is stored by means of the memory unit, the entry of the diagnostic counter value also saves the diagnosis counter value.
  • a preferred further development of the diagnostic method according to the invention comprises: assigning the diagnostic realtime information to the diagnostic message and sending the diagnostic message to an evaluation unit.
  • the assignment is preferably carried out by entering the DiagnoseechtZeitinformation in the diagnostic message.
  • the diagnostic counter value (when entering the DiagnoseechtZeitinformation) is replaced by the diagnosis real time information in the diagnostic message.
  • the evaluation unit is preferably designed as a central point for evaluating the diagnostic message. Before transferring the diagnostic message to the evaluation unit, the diagnostic nosemeldung be cached in a central storage unit of the rail vehicle.
  • the sending of the diagnostic message to the evaluation unit includes sending the diagnostic message to the central memory unit, buffering the diagnostic message in the central memory unit and transmitting the diagnostic message from the central memory unit to the central evaluation unit.
  • the central evaluation unit may preferably be arranged outside the rail vehicle.
  • the reference time Informa ⁇ tion by means of a central control unit, in particular egg ⁇ nes central NTP server, the vehicle is provided.
  • the central control unit preferably comprises a buffered real-time timer.
  • the timer of the decentralized subsystem control unit comprises a logical clock.
  • the diagnostic message is assigned a sequence number which generated at a plurality ⁇ diagnostic messages advantage an order of the diagnostic messages repre-. More preferably is a diagnostic message that is generated within a time interval whose duration is determined by the pre ⁇ passed time period associated with the Sequenznum ⁇ mer individually.
  • the diagnostic real-time information is determined after a loss of the synchronization of the timer on the basis of the relative time information and the reference time information. This development is based on the idea that the synchronized timer can lose synchronization again. The loss of synchronization is detected, for example, by the subsystem controller when the subsystem controller is in response to a request for reference time information from an NTP server no response is received.
  • Another example of the loss of synchronization occurs when the subsystem control unit determined that the difference between a captured emp ⁇ reference time information and a current Zeitin- formation of the timer exceeds a predetermined threshold. In the latter case, the subsystem control unit does not accept the reference time information for synchronization. In other words, the subsystem control unit does not trust the reference time information (due to the large deviation) and the timer is considered "not synchronized”.
  • the invention further relates to a diagnostic system for a vehicle, in particular a rail vehicle, comprising: a decentralized subsystem control unit, which is designed to generate a diagnostic message and to provide time information by means of a timer, and a central timer, which is designed to a Referenzzeitinforma ⁇ tion generate, which represents a real time, wherein the timer of the subsystem control unit based on the reference ⁇ time information is synchronized and wherein a determinable based on the time information Relativzeitinformation represents a between a generation of the diagnostic message and a synchronization of the timer existing time.
  • a central control unit in particular a centra ⁇ ler NTP server, the vehicle includes the central timer.
  • the diagnostic system is preferably a diagnostic system of the vehicle.
  • FIG. 1 shows a rail vehicle with a diagnostic system according to the invention according to an embodiment
  • Figure 2 is a schematic flow diagram of a diagnostic method according to the invention according to an exemplary embodiment
  • FIG. 3 shows a schematic structure of a SEN invention shown diagnosis system according to ahousbei ⁇ game.
  • FIG. 1 shows a rail vehicle 1 in a schematic side view.
  • the rail vehicle 1 is formed as a bandage of a plurality of carriages 121, 122, etc., which are mechanically coupled to each other and form a tractor unit.
  • the railway vehicle 1 is constructed as a so- ⁇ -called multiple unit.
  • at least one of the carriages of the association is provided with a drive unit 114 for driving at least one axle 116.
  • the drive unit 114 has an electric motor (not shown).
  • the rail vehicle 1 is designed as a single railcar.
  • the rail vehicle 1 can have an association of unpowered coaches, which is coupled to at least one traction vehicle, for example a locomotive.
  • the rail vehicle 1 has a number of operating means 1201, 1202, 1203, 1205, 1206, 1207, 1208, 1211 and 1213, which enable operation of the rail vehicle 1. These can be designed in particular as a control unit, sensor unit and / or actuator unit.
  • the resource by way of example shown in Figure 1 are operating means 1201, the drive unit 114, operating means 1202 of a brake device 119, resources 1203 of door means, operating means 1205 of a Klimatretesag ⁇ gregats, apparatus 1206 of a passenger information tems, resources 1207 and 1208 of a man-machine interface for the driver, resources 1211 of an emergency braking device and means 1213 of a train protection.
  • FIG. 2 shows a schematic flowchart of a diagnostic method according to the invention, which represents a method sequence on the basis of method steps which are carried out by a diagnostic system 30.
  • Figure 3 illustrates the diagnostic system 30 as leittechnisches Sys tem ⁇ of the rail vehicle 1 in a schematic view.
  • This comprises a control network 22, which has an annular network structure.
  • the control network 22 is designed as an Ethernet network, in particular according to the Profinet standard.
  • the system also includes a central Steuerein ⁇ unit 20, which is connected to the control network 22nd.
  • the above-mentioned subsystems each have at least one subsystem control unit 10, 12, 14 or 16, which is provided for Steue ⁇ tion of one or more resources of the corresponding subsystem.
  • the subsystem control units 10, 12, 14 and 16 are each provided for controlling a task in connection with the functionality assigned to the respective subsystem.
  • a subsystem control unit 10 is a drive controller, as a subsystem control unit 12 a Brake control, as a subsystem control unit 14, a control of the vehicle door system, shown as a subsystem control unit 16 control of the command.
  • the diagnostic system 30 is started by executing a boot. By means of the start of the diagnostic system 30, the central control unit 20, the decentralized subsystem control units 10, 12, 14 and 16 as well as an NTP server 36 are switched on and started up.
  • Switching on the subsystem control unit 10, 12, 14 or 16 in a method step AA initiates a start C of a timer ⁇ encoder 11, 13, 15 or 17 of the subsystem control unit 10, 12, 14 and 16, which in a status " The timer 11, 13, 15 or 17 of the sub ⁇ system control unit 10, 12, 14 and 16 is formed as a logical clock.
  • the timer 11, 13, 15 and 17 respectively increments a counter value z once per second by the value
  • the counter value z s art is updated by incrementing it by the value "1" in a method step D.
  • the incrementing D is repeated in each case after the predefined time period dt D has elapsed after the last incrementing
  • the subsystem control unit 10, 12, 14 and 16 e generates a diagnostic message in egg ⁇ nem process step 40.
  • the diagno ⁇ Semel extension 40 may be, for example, an error message, the generating is initiated by control data that do not meet a predefined plausibility criterion.
  • the diagnostic message 40 is in a process step EE by means of a storage unit 29, 37, 38 and 39 of the subsystem control unit 10, 12, 14 and 16, respectively.
  • a method step F the current counter value z is stored in the generation of the diagnostic message 40 as a diagnostic counter value z D by entering this in the diagnostic message 40 and thus stored together with the diagnostic message 40 by means of the memory unit 29, 37, 38 and 39 respectively.
  • the exemplary embodiment described with reference to FIG. 2 relates to a situation in which a diagnostic message 40 is generated in time before synchronization of the timer 11, 13, 15 or 17.
  • a diagnostic real-time information for the Diag ⁇ nosemeldung is generated 40 and the diagnostic message is assigned as the time stamp will be explained.
  • This does not exclude that a further diagnostic message 43 is generated after synchronization.
  • This further diagnostic message 43 receives a diagnosis ⁇ real-time information on the basis of the synchronized by means of the timer 11, 13, 15 and 17 provided on the Zeitinformati ⁇ subsystem control unit when generating the Diagnosemel ⁇ extension 43 (see below).
  • the timer 11, 13, 15 or 17 is synchronized in a method step G.
  • the NTP server 36 provides reference time information t E in a method step GG, which represents a real time.
  • the NTP server 36 includes a real time generator 23.
  • the subsystem control unit 10, 12, 14 or 16 receives the reference time information t E in a method step GGG.
  • the timer 11, 13, 15, and 17, respectively feeds the received reference time information t E as real time (in other words, the timer 11, 13, 15, and 17, respectively, is in the "synchronized” state.)
  • Synchronizing of the timer 11, 13, 15 or 17 is stored in a method step GGGG by means of the memory unit 29, 37, 38 or 39 of the Subsystem Trust- unit 10, 12, 14 and 16 as a synchronization counter value z s .
  • a diagnostic real-time information t E which represents a real diagnostic ⁇ time of forming the diagnostic message E 40th Diagnostic real-time information t D E corresponds to the Diffe ⁇ rence between the reference time information t E and the relative time information d:
  • the diagnostic real-time information t D E is the diagnostic message 40 assigned in a step K (as a time stamp), in particular by entering the Diagnoseechtzeitinformation tDE in the diagnostic message 40.
  • the diagnostic message 40 is sent together with the Diagnoseechtzeitinformation tDE to the central control unit 20 and transfer.
  • an order of these diagnostic messages 40, 41, 42 is not based solely on the relative time information d and the reference time information t E
  • Time duration dt D generate diagnostic messages 40, 41, 42 associated with an individual sequence number N Seq .
  • sequence number N Seq 1 ⁇ example, the first diagnostic message 40, which is produced within one second (after incrementing the counter value) is assigned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Debugging And Monitoring (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

L'invention concerne un procédé de diagnostic ainsi qu'un système de diagnostic pour un véhicule, en particulier pour un véhicule ferroviaire (1). Le procédé de diagnostic consiste à : générer (E) un message de diagnostic (40) au moyen d'une unité de commande de sous-système décentralisée (10, 12, 14, 16), fournir (C, D) une information de temps (z) au moyen d'une horloge (11, 13, 15, 17) de l'unité de commande de sous-système (10, 12, 14, 16), fournir (GG) une information de temps de référence (tE), laquelle représente un temps réel, synchroniser (G) l'horloge (11, 13, 15, 17) de l'unité de commande de sous-système (10, 12, 14, 16) sur la base de l'information de temps de référence (tE) et fournir (H) une information de temps relatif (d) sur la base de l'information de temps (z), laquelle représente une durée existant entre la génération du message de diagnostic (40) et la synchronisation (G) de l'horloge (11, 13, 15, 17).
PCT/EP2018/050099 2017-01-13 2018-01-03 Procédé de diagnostic et système de diagnostic pour un véhicule WO2018130435A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017200520.3A DE102017200520A1 (de) 2017-01-13 2017-01-13 Diagnoseverfahren und Diagnosesystem für ein Fahrzeug
DE102017200520.3 2017-01-13

Publications (1)

Publication Number Publication Date
WO2018130435A1 true WO2018130435A1 (fr) 2018-07-19

Family

ID=60990784

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/050099 WO2018130435A1 (fr) 2017-01-13 2018-01-03 Procédé de diagnostic et système de diagnostic pour un véhicule

Country Status (2)

Country Link
DE (1) DE102017200520A1 (fr)
WO (1) WO2018130435A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111901076A (zh) * 2020-09-03 2020-11-06 北京经纬恒润科技有限公司 一种车辆诊断数据转发方法、装置及网关

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150021444A1 (en) * 2013-07-22 2015-01-22 Progress Rail Services Corporation Integrated time-stamped event recorder
EP3023848A1 (fr) * 2014-11-21 2016-05-25 Rockwell Automation Technologies, Inc. Horodatage et synchronisation pour communication de sécurité unifilaire

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150021444A1 (en) * 2013-07-22 2015-01-22 Progress Rail Services Corporation Integrated time-stamped event recorder
EP3023848A1 (fr) * 2014-11-21 2016-05-25 Rockwell Automation Technologies, Inc. Horodatage et synchronisation pour communication de sécurité unifilaire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111901076A (zh) * 2020-09-03 2020-11-06 北京经纬恒润科技有限公司 一种车辆诊断数据转发方法、装置及网关
CN111901076B (zh) * 2020-09-03 2022-04-26 北京经纬恒润科技股份有限公司 一种车辆诊断数据转发方法、装置及网关

Also Published As

Publication number Publication date
DE102017200520A1 (de) 2018-07-19

Similar Documents

Publication Publication Date Title
EP1814263B1 (fr) Procédé et dispositif destinés à l'échange de données entre au moins deux participants connectés à un système de bus
DE10000303B4 (de) Verfahren und Vorrichtung zum Austausch von Daten zwischen wenigstens zwei mit einem Bussystem verbundenen Teilnehmern
EP1370955B1 (fr) Procede et dispositif de synchronisation du temps de cycle de plusieurs bus ttcan, et systeme de bus correspondant
EP1115220B1 (fr) Procédé et dispositif d'échange de données entre au moins deux abonnés connectés par un système de bus
DE10333932A1 (de) Synchronisation von datenverarbeitenden Einheiten
DE102006032726B4 (de) Verfahren zum Synchronisieren von Komponenten eines Kraftfahrzeugbremssystems und elektronisches Bremssteuersystem
WO2011012522A1 (fr) Système de freinage électronique et procédé permettant de faire fonctionner un système de freinage électronique
EP1461910B1 (fr) Systeme de communication a base cyclique commande en temps, abonne d'un tel systeme et procede de transmission
DE102013002647B3 (de) Kraftwagen mit einem Fahrzeugkommunikationsbus und Verfahren zum Erzeugen von Busnachrichten
WO2012101229A1 (fr) Système composite de réseaux pour des appareils de véhicule et procédé de synchronisation pour exploiter le système composite de réseaux
WO2018130435A1 (fr) Procédé de diagnostic et système de diagnostic pour un véhicule
DE112016006679B4 (de) Steuerungsvorrichtung und Recovery-Verarbeitungsverfahren für Steuerungsvorrichtung
EP1763768B1 (fr) Procédé et dispositif pour commander un système de bus et système de bus correspondant
EP2847966A1 (fr) Procédé de transmission de données dans un réseau de communication orienté paquets, et appareil d'abonné corrrespondant conçu pour ledit procédé, présent dans ledit réseau de communication
DE102010001596A1 (de) Verfahren zum Betrieb eines zeitgesteuerten Bussystems
DE102016215772B4 (de) Diagnoseverfahren und Diagnoseanordnung für ein Fahrzeug
EP2615511A1 (fr) Procédé de développement synchronisé de programmes dans un système d'automatisation redondant
WO2016037932A1 (fr) Dispositif de communication, système de communication et procédé de transmission synchronisée de télégrammes
EP4068014B1 (fr) Solution d'automatisation en nuage hautement disponible à temps de transmission optimisés
DE102015014210B4 (de) Netzwerkmanagement für ein zweikanaliges FlexRay-Netzwerk
EP3724758A1 (fr) Procédé pour exécuter une mise à jour d'une application logicielle dans un appareil qui est en cours de fonctionnement, ainsi qu'appareil et véhicule automobile
DE102013020768A1 (de) Verfahren zur Zeitsynchronisation in einem zyklusbasierten Busnetzwerk
DE102016005928B4 (de) Beobachtungsvorrichtung und Verfahren zum Ermitteln einer Resetdauer eines Resets eines Steuergeräts eines Kraftfahrzeugs
DE102006005098A1 (de) Verfahren und Vorrichtung zum Steuern eines Verbrauchers eines Kraftfahrzeugs, insbesondere einer Warnblinkanlage

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18700452

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18700452

Country of ref document: EP

Kind code of ref document: A1