FR2778993B1 - Procede et systeme de protection de donnees dans deux calculateurs notamment pour les commandes d'un vehicule automobile - Google Patents

Procede et systeme de protection de donnees dans deux calculateurs notamment pour les commandes d'un vehicule automobile

Info

Publication number
FR2778993B1
FR2778993B1 FR9904582A FR9904582A FR2778993B1 FR 2778993 B1 FR2778993 B1 FR 2778993B1 FR 9904582 A FR9904582 A FR 9904582A FR 9904582 A FR9904582 A FR 9904582A FR 2778993 B1 FR2778993 B1 FR 2778993B1
Authority
FR
France
Prior art keywords
check sum
eeprom
computers
data
controls
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
FR9904582A
Other languages
English (en)
Other versions
FR2778993A1 (fr
Inventor
Dieter Woerner
Thomas Purat
Friedhelm Broeckel
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2778993A1 publication Critical patent/FR2778993A1/fr
Application granted granted Critical
Publication of FR2778993B1 publication Critical patent/FR2778993B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0421—Multiprocessor system
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/23—Pc programming
    • G05B2219/23214—Checksum CRC
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/23—Pc programming
    • G05B2219/23325—Transfer modified data from ram to eprom, flash after system have run several cycles
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24067—Processor stores variables, events and date in eeprom, for external monitor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24189—Redundant processors monitor same point, common parameters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Detection And Correction Of Errors (AREA)
  • Safety Devices In Control Systems (AREA)
FR9904582A 1998-04-23 1999-04-13 Procede et systeme de protection de donnees dans deux calculateurs notamment pour les commandes d'un vehicule automobile Expired - Fee Related FR2778993B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19818175A DE19818175A1 (de) 1998-04-23 1998-04-23 Verfahren und System zur Datensicherung

Publications (2)

Publication Number Publication Date
FR2778993A1 FR2778993A1 (fr) 1999-11-26
FR2778993B1 true FR2778993B1 (fr) 2002-04-12

Family

ID=7865572

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9904582A Expired - Fee Related FR2778993B1 (fr) 1998-04-23 1999-04-13 Procede et systeme de protection de donnees dans deux calculateurs notamment pour les commandes d'un vehicule automobile

Country Status (5)

Country Link
US (1) US6510527B1 (fr)
JP (1) JP2000003311A (fr)
DE (1) DE19818175A1 (fr)
FR (1) FR2778993B1 (fr)
IT (1) ITMI990791A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3599581B2 (ja) * 1998-11-25 2004-12-08 キヤノン株式会社 電子装置及びコンピュータ読み取り可能な記憶媒体
TW451212B (en) * 1999-12-03 2001-08-21 Macronix Int Co Ltd Read only memory chip having a built in testing circuit
US6842869B2 (en) * 2001-06-08 2005-01-11 International Business Machines Corporation Method to maintain nonvolatile system information cached in a distributed control network
US6904540B2 (en) * 2001-10-29 2005-06-07 Hewlett-Packard Development Company, L.P. Targeted data protection
US20070172053A1 (en) * 2005-02-11 2007-07-26 Jean-Francois Poirier Method and system for microprocessor data security
US7366597B2 (en) * 2005-07-22 2008-04-29 Gm Global Technology Operations, Inc. Validating control system software variables
EP2294580B1 (fr) * 2008-06-20 2014-04-02 Freescale Semiconductor, Inc. Système de mémoire à stockage de données redondant et correction des erreurs
EP2294581B1 (fr) * 2008-06-20 2013-01-09 Freescale Semiconductor, Inc. Système de distribution de ressources de mémoire disponibles
JP6761280B2 (ja) * 2016-05-30 2020-09-23 ローム株式会社 データ保持装置およびデータ保持システム
CN110083479B (zh) * 2018-01-25 2023-08-01 宁波三星医疗电气股份有限公司 一种智能电能表的eeprom数据保护方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2371734A1 (fr) 1976-11-23 1978-06-16 Matra Systeme numerique de traitement de donnees, notamment pour vaisseau spatial
US4270168A (en) * 1978-08-31 1981-05-26 United Technologies Corporation Selective disablement in fail-operational, fail-safe multi-computer control system
JPS61141056A (ja) * 1984-12-14 1986-06-28 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 揮発性メモリの間欠エラ−検出方法
US5146459A (en) * 1986-11-28 1992-09-08 Canon Kabushiki Kaisha Electronic equipment with check-sum function
US5228046A (en) * 1989-03-10 1993-07-13 International Business Machines Fault tolerant computer memory systems and components employing dual level error correction and detection with disablement feature
JPH0344898A (ja) * 1989-07-12 1991-02-26 Ando Electric Co Ltd チェックサム値を照合するｐｒｏｍライタ
US5701316A (en) * 1995-08-31 1997-12-23 Unisys Corporation Method for generating an internet protocol suite checksum in a single macro instruction
US5914971A (en) * 1997-04-22 1999-06-22 Square D Company Data error detector for bit, byte or word oriented networks

Also Published As

Publication number Publication date
ITMI990791A1 (it) 2000-10-15
FR2778993A1 (fr) 1999-11-26
DE19818175A1 (de) 1999-10-28
US6510527B1 (en) 2003-01-21
JP2000003311A (ja) 2000-01-07

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20111230