WO2010054920A1 - Dispositif de commande d'une fonction d'un véhicule et procédé d'actualisation d'un appareil de commande - Google Patents

Dispositif de commande d'une fonction d'un véhicule et procédé d'actualisation d'un appareil de commande Download PDF

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Publication number
WO2010054920A1
WO2010054920A1 PCT/EP2009/063907 EP2009063907W WO2010054920A1 WO 2010054920 A1 WO2010054920 A1 WO 2010054920A1 EP 2009063907 W EP2009063907 W EP 2009063907W WO 2010054920 A1 WO2010054920 A1 WO 2010054920A1
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WO
WIPO (PCT)
Prior art keywords
communication unit
software
server
control unit
update
Prior art date
Application number
PCT/EP2009/063907
Other languages
German (de)
English (en)
Inventor
Roland Dietz
Rainer Falk
Ronald Hain
Florian Kohlmayer
Herbert Meier
Franz Stadler
Original Assignee
Continental Automotive 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 Continental Automotive Gmbh filed Critical Continental Automotive Gmbh
Publication of WO2010054920A1 publication Critical patent/WO2010054920A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
    • G06F21/57—Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
    • G06F21/572—Secure firmware programming, e.g. of basic input output system [BIOS]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2103—Challenge-response
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2115—Third party

Definitions

  • the present invention relates to a software operable device having a control unit for controlling a vehicle function, a system comprising such a device and a server, as well as a method for updating a software software of a corresponding control device.
  • the invention is therefore based on the object to propose a corresponding device with a control unit for controlling a vehicle function, which allows an update of a software of the control unit with a relatively low cost, with an abusive and incorrect reconfiguration should be safely avoided.
  • the invention is further based on the object of developing a corresponding, simple method for updating a software of a control device and a system with which such a method can be carried out. This object is achieved by a device having the features of claim 1 and by a system having the features of claim 6 and a method having the features of claim 9.
  • a device which comprises an electronic control unit that can be operated with software and additionally a communication unit.
  • the communication device is in communication with the control device for data transmission, so that the software of the control device can be updated by the data transmission, wherein the communication unit is designed for a wireless data exchange with a server for authorizing the
  • Communication unit for data transmission to the control unit.
  • the controller may be, for example, a motor controller or a part of a motor controller.
  • the control unit can thus take over functions such as the control of a fuel injection system or an ignition system.
  • the controller may be, for example, an air conditioning control.
  • the secure update controller may be switched to a programming mode by means of an authorization code that permits updating of the software, wherein the communication unit is adapted to receive the authorization code from the server and transmit the authorization code thereto
  • the authorization code can be vehicle-specific and / or specific for a data quantity to be transmitted for updating the software. It is also possible that the authorization code is given by a one-time password, whereby the security can be further increased.
  • the communication unit can be set up to download an update software for the control unit from the server or from a data carrier that can be connected to the communication unit. In both cases, no workshop visit is required to update the software of the control unit.
  • the updating of the software can be carried out in an advantageous and simple manner with a system which, in addition to the device with an updatable electronic control unit and a communication unit described type, also comprises a server connected to the communication unit for data exchange via a wireless connection and to Execution of the already described functions of the server is set up.
  • a server connected to the communication unit for data exchange via a wireless connection and to Execution of the already described functions of the server is set up.
  • the server can provide all the information needed for an update, an update that may be required may be promptly initiated, typically after an automatic request has been made.
  • the information referred to is the data required for authorizing the communication unit and possibly also the update software, unless it is read out by another data carrier.
  • the communication unit and the server for mutually identifying and / or authenticating can be set up for a secure locating and a secure association of vehicle-type-specific updating software and for avoiding incorrect or abusive reconfiguration of the software of the control unit.
  • the proposed method for updating the software of a vehicle-mounted electronic control unit for controlling a vehicle function in which an update software is installed on the controller provides for the safe operation of a fully automatic update of the control software the following sequence of steps: First, a wireless connection between a manufactured in the same vehicle and connected to the control unit communication unit and a server. Then, an authorization code is received by the communication unit from the server via the wireless connection. The authorization code is transmitted by the communication unit to the control unit, which is switched by the authorization code into a programming mode permitting the updating of the software, the authorization code also being modified only as an extract or according to a calculation rule transmitted by the server from the communication unit to the control unit Control unit can be transferred.
  • control unit can carry out a check of the authorization code and use a stored cryptographic key for this purpose.
  • the controller may change to a programming mode authorized by the authorization code and upon receipt of the update software, verify that the installation of the update software is permitted in the programming mode authorized by the transmitted authorization code.
  • an update software which has been previously loaded by the communication unit, transmitted from the communication unit to the controller and installed there.
  • the update software can be received by the communication unit via the wireless connection from the server, or alternatively downloaded from a DVD or USB stick or other data carrier connected to the communication unit.
  • data can be exchanged via the wireless connection between the communication unit and the server for authenticating the communication unit to the server and / or for authenticating the server to the communication unit become.
  • the wireless connection between the communication unit and the server may be, for example, a GSM network, a UMTS network, a GPRS connection, a WiMAX connection, another mobile radio network or Use Wi-Fi.
  • the update software Before installation, the update software can be checked by the communication unit for compatibility with the control unit to ensure that the update software is also suitable for the vehicle type-specific control unit, for example.
  • information about an up-to-date configuration of the software may be transmitted by the communication unit to the server over the wireless connection.
  • the server may check for any update software for changing the current configuration of the software and be programmed to transfer the authorization code and / or the update software to the communication unit only when the Exam is positive.
  • an advantageous embodiment of the method provides that the update software is only then transmitted or installed, or the control unit is only switched to the programming mode or the authorization code is only transmitted by the server or by the communication unit when Standstill of the vehicle or an engine of the vehicle or the presence of at least one other constraint is determined.
  • Another possible security measure which prevents or at least considerably complicates the use or modification of the updating software by a third party, provides that the server additionally transmits a cryptographic key or data for deriving a cryptographic key to the communication unit, which the communication unit then decrypts for decrypting transmitted and used updating software.
  • a gateway via which the control unit can be connected to the communication unit can be reconfigured by a command sent by the communication unit.
  • the communication unit can receive via the wireless connection from the server a code authorizing it to transmit said command, with which the communication unit then authenticates itself at the gateway.
  • a status code is transmitted from the control unit to the communication device and / or from the communication device to the server, which indicates whether the update software has been successfully installed. This will detect errors that require further updating.
  • a backup copy of the software to be replaced by the update software can be transferred to the communication unit and temporarily stored there.
  • this backup copy is retransmitted to the control unit if the installation of the update software fails. This ensures vehicle operation even if the installation is not successful.
  • the device described above and the system, which additionally comprises the server, can be designed programmatically by a corresponding program-technical device of the control device, the communication unit and the server for carrying out the proposed method.
  • FIG. 1 shows a schematic representation of a system of a proposed type with a control device, a communication unit and a server
  • FIG. 1 shows a schematic representation of a system of a proposed type with a control device, a communication unit and a server
  • FIG. 1 shows a schematic representation of a system of a proposed type with a control device, a communication unit and a server
  • FIG. 1 shows a schematic representation of a system of a proposed type with a control device, a communication unit and a server
  • FIG. 2 shows a flow chart of successive steps of a method for updating the software of a control unit by a server in a system of the type shown in FIG. 1,
  • FIG. 3 is a corresponding representation of individual steps of an update in a modification of the method illustrated in FIG. 2, in which an updating software is read out from a data carrier on-site.
  • FIG. 4 is an illustration of a successful update in one embodiment of the method that provides a data recovery option
  • FIG. 5 shows, in a corresponding representation, the individual steps of the method already illustrated in FIG. 4 in the case of an unsuccessful update.
  • Fig. 1 shows a schematic representation of a system with a control unit 2, a communication unit 3, a server 4 and a mobile network 5.
  • the control unit 2, which is a motor control or part of a motor control, and the communication unit 3 are located in a vehicle and form together a device 1.
  • the device 1 and the system, which additionally includes the server 4 and the mobile network 5, are by a corresponding programming device of the control unit 2, the communication unit 3 and the server 4 for carrying out the proposed method described below designed programmatically.
  • the control unit 2 is operable with an updatable software and the communication unit 3 is in communication with the control unit 2 for data transmission, so that the software of the control unit 2 can be updated by the data transmission, wherein the communication unit 3 is designed for a wireless exchange with the Server 4 operating the server for authorizing the communication unit 3 for the data transmission to the control unit 2.
  • the mobile radio network 5 is used, which is a GSM network, a UTMS Network, a GPRS connection, a WiMAX connection, another mobile network or a WLAN.
  • the method executable by the system provides the following steps.
  • the communication unit 3 starts a request for the status of the software to the control unit 2, which then transmits the current status of the software.
  • the communication unit 3 establishes a wireless connection to the server 4, and after a mutual authentication between the communication unit 3 and the server 4, the communication unit 3 sends a request for the presence of current software to the server 4.
  • the server 4 checks then, whether a vehicle-type-specific update software for the control unit 2 is present. If this is the case, the connection between the communication unit 3 and server 4 is maintained and there is a transfer of the update software from the server 4 to the communication unit 3 instead.
  • the update software is instead transmitted from a connectable to the communication unit 3 disk, such as a USB stick.
  • the communication unit 3 receives an authorization code from the server 4 via the mobile radio network 5, which the communication unit 3 then transmits to the control unit 2, whereby the control unit 2 is switched to a programming mode.
  • This programming mode is characterized in that it allows overwriting and thus updating the software of the control unit 2.
  • the update software which consists of a directly executable program code, directly usable configuration parameters or a combination thereof, transmitted from the communication unit 3 to the control unit 2 and there for a fully automatically brought up-to-date controlling a in the present example with the engine control related vehicle function installed.
  • the authorization code is only then transmitted by the server 4 and the communication unit 3, the control unit 2 is only then switched to the programming mode and the update software is transmitted and installed only when the vehicle, an engine of the vehicle and possibly the presence thereof have stopped other constraints - for example, a consent of a user - has been found. Possible embodiments of this method will be described in more detail below with reference to FIGS. 2 to 5.
  • FIG. 2 shows, as a flowchart, successive steps of a corresponding method for updating the software of a control unit 2 by a server 4 in a system of the type shown in FIG.
  • the controller 2, the communication unit 3 and the server 4 are shown in vertical line form to illustrate the sequence of the individual steps, while method steps in which data is exchanged between different components of the system are illustrated by arrows.
  • the communication unit 3 directs a request to the control unit 2 about the status of the software with which the control unit 2 is operated to control a vehicle function.
  • the control unit 2 subsequently transmits the status of the software to the communication unit in a step S2 3.
  • the authentication of the vehicle can be carried out using known cryptographic methods, in particular using a secret key or a private key. As a result, a cryptographically protected connection can be established.
  • a request is made by the communication unit 3 to the server 4 via the presence of an updating software, to which the communication unit 3 transmits information about a current configuration of the software to the server 4.
  • the server 4 checks by comparing the information received from the communication unit 3 with information stored on the server 4 about a latest software version, whether the latter differs from the current - that is, current - configuration of the software of the controller 2. If so, the following steps are performed. First, the server 4 divides the communication unit 3 in one
  • Step S5 with that there is an update software referred to below as the current software.
  • the communication unit 3 requests the server 4 in a step S6 to transmit the current software.
  • the software is then transferred from the server 4 to the communication unit 3.
  • the communication unit 3 transmits to the server 4 in a step S8 that the downloading operation has ended.
  • the communication unit 3 notifies the server 4 that the update is to be started.
  • the communication unit 3 requests an authorization code from the server 4 in a step S10.
  • the server 4 then sends in a step Sil a given authorization code to the communication unit 3.
  • This authorization code can be vehicle-specific and specific to the current software be and possibly also be given by a one-time password.
  • the server 4 can additionally transmit a cryptographic key or data for deriving a cryptographic key to the communication unit 3, the communication unit 3 using this key for decrypting the then decrypted transmitted update software.
  • the received key may also be transmitted from the communication unit 3 to the controller 4, and the decryption of the encrypted transmitted update software is performed by the controller 2 using the received key.
  • a gateway via which the control unit 2 is connected to the communication unit 3, can also be reconfigured by a command sent by the communication unit 3, so that a filter reconfiguration of the gateway takes place, before the updating of the software of the control unit 2 connected data transmission between the communication unit 3 and the
  • Control unit 2 takes place.
  • the communication unit 3 may additionally receive an authoritative code with which the communication unit 3 authenticates itself at the gateway.
  • the gateway monitors the data transmission between communication unit 3 and control unit 2. If the communication unit 3 sends an authorization code to the control unit 2 via the gateway and this is confirmed by the control unit 2, the gateway automatically changes to a communication mode, so that the Communication unit 3 can transmit the update software to the control unit 2.
  • the communication unit 3 transmits the authorization code to the control unit 2, whereby the authorization code is also transmitted from the communication unit 3 to the control unit 2 as an extract or modified according to a calculation rule transmitted by the server. can be.
  • the controller 2 may perform a check of the authorization code using a stored cryptographic key. Of several possible programming modes, the controller 2 may change to a programming mode authorized by the authorization code, and upon receipt of the update software, verify that the installation of the update software is permitted in the programming mode authorized by the transmitted authorization code. If these requirements are fulfilled, the control unit 2 is then switched to a programming mode that allows an update of the software.
  • a step S15 then, after checking the software for compatibility with the control unit 2 by the communication unit 3, the transfer of the current software from the communication unit 3 to the control unit 2 occurs. As a result, the current software is installed on the control unit 2. After a successful installation, the controller 2 then sends a confirmation of the functionality to the communication unit 3 in a step S18. Finally, the communication unit 3 transmits the result of the successful update to the server 4 in a step S19, and in step S20, the communication unit 3 the server 4 with the completion of the process of updating.
  • the steps S1, S2, S12, S15 and S18 associated with a data exchange between the control unit 2 and the communication unit 3 in the described method correspond to a data exchange between a corresponding control unit and a test and update device in a conventional software update in which the test and update device is stationed in a workshop, which is visited with the vehicle. Therefore, the communication unit 3 that is essential for the system and the proposed method is also referred to as "virtual-on-board tester" (VOT), while the control unit 2 does not have to be modified in order to be described in combination with the communication system. to be used on unit 3.
  • VET virtual-on-board tester
  • the communication unit 3 is a logical component of the vehicle and can be given, for example, by a functionality of the infotainment system.
  • the data carrier which is for example a DVD or a USB stick, contains a current, vehicle-type-specific software for controlling the vehicle function controlled by the control unit 2.
  • the data carrier is supplied to the communication unit 3 and registered by the communication unit 3 in a process Vl. Following are the steps S1 and S2 explained in the description of FIG. In a process V2, the communication unit 3 then checks whether the software stored on the data carrier is a newer configuration than the software installed on the control unit 2. If this is the case, the steps S3, S9 to S12, S15 and S18 to S20 already described in connection with FIG. 2 follow.
  • FIG. 4 shows, as shown, a successful update in one embodiment of the method that provides a data recovery option.
  • the steps S1 to S12 already known from the method of FIG. 2 also take place in this embodiment.
  • the communication unit 3 requests the control unit 2 to transmit the hitherto used version of the software to the communication unit 3.
  • the control unit 2 then transmits in a step S14 the hitherto used version of the software for vehicle function Control to the communication unit 3.
  • the communication unit 3 then stores this hitherto used version of the software. Only then do the steps S15 and S18 known from FIG. 2 follow.
  • step S18 Triggered by the information transmitted in step S18, which indicates a successful installation, the hitherto used version of the software stored in a memory of the communication unit 3 is subsequently deleted in a process V4.
  • steps S19 and S20 already described in connection with FIG.
  • FIG. 5 shows in a corresponding representation the individual steps of the method already illustrated in FIG. 4 in the case of an unsuccessful update.
  • the control unit 2 informs the communication unit 3 in this case that the installed update software is not usable, whereupon in a step S17 the hitherto used version of the software is transmitted back from the communication unit 3 to the control unit 2.
  • the procedure V4 already known from FIG. 4 follows, and in a step S19A the communication unit 3 transmits the result of an unsuccessful update to the server 4, whereupon the step S20 already known from FIG. 2 follows.
  • the server 4 sends, in addition to the authorization code, an update software for the communication unit 3 to the communication unit 3, which contains the test software for the control unit 2.
  • Another variant already requires an authorization code for an outgoing of the communication unit 3 question about the status of the software with which the control unit 2 is operated.
  • a further advantageous variant provides that the communication unit 3 holds an emergency software version, which is installed in the event that the recovery option does not work.
  • This data can either be stored in a non-erasable or non-rewritable area of the communication unit 3 or on a supplied data carrier in order to restore the vehicle's ability to drive.

Abstract

L'invention concerne un dispositif (1) de commande d'une fonction d'un véhicule, comprenant un appareil électronique de commande (2) qui peut fonctionner avec un logiciel. Le dispositif (1) comprend en outre une unité de communication (3) qui est en liaison avec l'appareil de commande (2) pour la transmission de données, si bien que le logiciel de l'appareil de commande (2) peut être actualisé par la transmission de données. L'unité de communication (3) est conçue pour un échange de données sans fil avec un serveur (4) afin d'autoriser l'unité de communication (3) à transmettre des données à l'appareil de commande (2). L'invention concerne en outre un système destiné à actualiser un appareil de commande (2), comprenant un dispositif (1) décrit ci-dessus ainsi qu'un serveur (2) qui est relié par une liaison sans fil avec l'unité de communication (3) pour l'échange de données. L'invention concerne encore un procédé d'actualisation d'un logiciel d'un appareil électronique de commande (2) logé dans un véhicule afin de commander une fonction du véhicule, selon lequel un logiciel d'actualisation est installé sur l'appareil de commande (2).
PCT/EP2009/063907 2008-11-11 2009-10-22 Dispositif de commande d'une fonction d'un véhicule et procédé d'actualisation d'un appareil de commande WO2010054920A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810056745 DE102008056745A1 (de) 2008-11-11 2008-11-11 Vorrichtung zum Steuern einer Fahrzeugfunktion und Verfahren zum Aktualisieren eines Steuergerätes
DE102008056745.0 2008-11-11

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WO2010054920A1 true WO2010054920A1 (fr) 2010-05-20

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PCT/EP2009/063907 WO2010054920A1 (fr) 2008-11-11 2009-10-22 Dispositif de commande d'une fonction d'un véhicule et procédé d'actualisation d'un appareil de commande

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WO (1) WO2010054920A1 (fr)

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DE102014223739A1 (de) * 2014-11-20 2016-05-25 Zf Friedrichshafen Ag Sicherung eines Kraftfahrzeugs
WO2016206977A1 (fr) * 2015-06-23 2016-12-29 Bayerische Motoren Werke Aktiengesellschaft Procédé, serveur, pare-feu, appareil de commande et système pour programmer un calculateur d'un véhicule
US10650137B2 (en) 2015-06-23 2020-05-12 Bayerische Motoren Werke Aktiengesellschaft Method, server, firewall, control device, and system for programming a control device of a vehicle
CN111480141A (zh) * 2017-10-23 2020-07-31 罗伯特·博世有限公司 用于更新机动车控制设备的软件的方法和设备
IT201900000343A1 (it) 2019-01-10 2020-07-10 Herbal E Antioxidant Derivatives S R L Ed In Forma Abbreviata H&Ad S R L Composizioni per il trattamento della menopausa, osteopenia e osteoporosi, disturbi metabolici e vascolari legati al climaterio

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