EP2204714A3 - Manipulation-proof transmission of signals - Google Patents

Manipulation-proof transmission of signals Download PDF

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Publication number
EP2204714A3
EP2204714A3 EP09014474A EP09014474A EP2204714A3 EP 2204714 A3 EP2204714 A3 EP 2204714A3 EP 09014474 A EP09014474 A EP 09014474A EP 09014474 A EP09014474 A EP 09014474A EP 2204714 A3 EP2204714 A3 EP 2204714A3
Authority
EP
European Patent Office
Prior art keywords
internal combustion
combustion engine
manipulation
maximum
information
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.)
Granted
Application number
EP09014474A
Other languages
German (de)
French (fr)
Other versions
EP2204714A2 (en
EP2204714B1 (en
Inventor
Jürgen Brardt
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.)
Deutz AG
Original Assignee
Deutz AG
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 Deutz AG filed Critical Deutz AG
Publication of EP2204714A2 publication Critical patent/EP2204714A2/en
Publication of EP2204714A3 publication Critical patent/EP2204714A3/en
Application granted granted Critical
Publication of EP2204714B1 publication Critical patent/EP2204714B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F02D41/24—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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/18—Control of the engine output torque
    • F02D2250/26—Control of the engine output torque by applying a torque limit

Abstract

Die Erfindung betrifft ein Verfahren zum Betreiben einer Brennkraftmaschine mit einem elektronischen Steuergerät, das Informationen über den Zustand der Brennkraftmaschine mittels Sensoren erfasst und die Brennkraftmaschine steuert und regelt, wobei eine in dem Steuergerät abgelegte Software aus den Informationen unter Einhaltung der maximal zulässigen Leistung zum Schutz von Brennkraftmaschinenkomponenten und zur Einhaltung der Abgasgesetzgebung die maximale Kraftstoffmenge berechnet, wodurch die maximale Momentanleistung und das maximale Momentandrehmoment der Brennkraftmaschine bestimmt wird.The invention relates to a method for operating an internal combustion engine with an electronic control unit, which detects information about the state of the internal combustion engine by means of sensors and controls and controls the engine, wherein stored in the controller software from the information in compliance with the maximum allowable power to protect Internal combustion engine components and complying with the emissions legislation, the maximum amount of fuel calculated, whereby the maximum instantaneous power and the maximum torque of the internal combustion engine is determined.

Erfindungsgemäß wird eine Manipulation der von dem Sensor erfassten Informationen verhindert. Dies wird dadurch erreicht, dass das Ausgangssignal des Sensors verschlüsselt an das Steuergerät gesendet wird.

Figure imgaf001
According to the invention, a manipulation of the information detected by the sensor is prevented. This is achieved by sending the output signal of the sensor encrypted to the control unit.
Figure imgaf001
EP09014474.2A 2008-11-29 2009-11-20 Manipulation-proof transmission of signals Active EP2204714B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008059687A DE102008059687A1 (en) 2008-11-29 2008-11-29 Tamper-proof transmission of signals

Publications (3)

Publication Number Publication Date
EP2204714A2 EP2204714A2 (en) 2010-07-07
EP2204714A3 true EP2204714A3 (en) 2010-11-03
EP2204714B1 EP2204714B1 (en) 2019-04-17

Family

ID=42134071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09014474.2A Active EP2204714B1 (en) 2008-11-29 2009-11-20 Manipulation-proof transmission of signals

Country Status (3)

Country Link
EP (1) EP2204714B1 (en)
DE (1) DE102008059687A1 (en)
ES (1) ES2731370T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2194257A1 (en) * 2008-12-05 2010-06-09 Delphi Technologies Holding S.à.r.l. A method of controlling a vehicle engine system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10213658A1 (en) * 2002-03-27 2003-10-16 Bosch Gmbh Robert Process for data transmission between components of the on-board electronics of mobile systems and such components
DE102007012477A1 (en) * 2007-03-15 2008-09-18 Agco Gmbh Change detection and change protection device and change detection and change protection method of control data of a controlled vehicle device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19953767C2 (en) * 1999-11-09 2002-03-28 Mtu Friedrichshafen Gmbh Control system for protecting an internal combustion engine against overload
DE19955545A1 (en) * 1999-11-18 2001-05-23 Volkswagen Ag System for controlling a motor vehicle uses control devices fitted with a cryptocontroller storing a program for encrypting and/or a secret code in memory and keeping it safe from manipulation
DE10238095B4 (en) * 2002-08-21 2007-08-30 Audi Ag Method for protection against manipulation of a control unit for at least one motor vehicle component and control unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10213658A1 (en) * 2002-03-27 2003-10-16 Bosch Gmbh Robert Process for data transmission between components of the on-board electronics of mobile systems and such components
DE102007012477A1 (en) * 2007-03-15 2008-09-18 Agco Gmbh Change detection and change protection device and change detection and change protection method of control data of a controlled vehicle device

Also Published As

Publication number Publication date
ES2731370T3 (en) 2019-11-15
EP2204714A2 (en) 2010-07-07
EP2204714B1 (en) 2019-04-17
DE102008059687A1 (en) 2010-06-02

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