EP1264097A1 - Dispositif pour produire des signaux de maniere fiable - Google Patents

Dispositif pour produire des signaux de maniere fiable

Info

Publication number
EP1264097A1
EP1264097A1 EP01913641A EP01913641A EP1264097A1 EP 1264097 A1 EP1264097 A1 EP 1264097A1 EP 01913641 A EP01913641 A EP 01913641A EP 01913641 A EP01913641 A EP 01913641A EP 1264097 A1 EP1264097 A1 EP 1264097A1
Authority
EP
European Patent Office
Prior art keywords
control
control signal
signal
switching means
emergency
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.)
Withdrawn
Application number
EP01913641A
Other languages
German (de)
English (en)
Inventor
Joachim Schenk
Volker Breunig
Frank Schmidt
Achim Mahler
Karl Wenzel
Andre Owerfeldt
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
Priority to EP06101384A priority Critical patent/EP1679729B1/fr
Publication of EP1264097A1 publication Critical patent/EP1264097A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits specially adapted for starting of engines
    • F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
    • F02P1/08—Layout of circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/0407—Opening or closing the primary coil circuit with electronic switching means
    • F02P3/0435—Opening or closing the primary coil circuit with electronic switching means with semiconductor devices
    • F02P3/0442—Opening or closing the primary coil circuit with electronic switching means with semiconductor devices using digital techniques
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/06—Other installations having capacitive energy storage
    • F02P3/08—Layout of circuits
    • F02P3/0807—Closing the discharge circuit of the storage capacitor with electronic switching means
    • F02P3/0838—Closing the discharge circuit of the storage capacitor with electronic switching means with semiconductor devices
    • F02P3/0846—Closing the discharge circuit of the storage capacitor with electronic switching means with semiconductor devices using digital techniques
    • 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
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric
    • 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
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric
    • G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
    • F02D2041/2072—Bridge circuits, i.e. the load being placed in the diagonal of a bridge to be controlled in both directions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits specially adapted for starting of engines
    • F02N11/0803—Circuits specially adapted for starting of engines characterised by means for initiating engine start or stop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/10—Safety devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H2009/0083—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 using redundant components, e.g. two pressure tubes for pressure switch

Definitions

  • the invention is based on a device for secure signal generation according to the type of the independent claims.
  • safety-critical signals are switched directly to the signal sink, such as terminal control signals from the ignition starter switch.
  • the signal sink such as terminal control signals from the ignition starter switch.
  • a safety-critical signal is to be generated by a microcontroller, it must be ensured that its safety-critical output signal does not change to an incorrect state when a single fault occurs in a component in the system or can no longer be switched from one state to another state.
  • the device for secure signal generation comprises a control means, the one Control signal is supplied. Depending on the control signal, the control means generates a control signal for controlling a load.
  • emergency running means are provided which generate the control signal instead of the control means in an emergency mode.
  • the redundant generation of the control signal increases the safety of the overall arrangement, since in the event of a fault in the control means, the emergency running means are still available to generate the control signal in an emergency mode. Correct control is thus ensured, in particular in the case of safety-critical signals, such as the terminal control signal for an ignition starter switch. If errors occur in a component in the system, the control signal does not change to an incorrect state and can also be switched to another state.
  • the control signal is preferably also fed to the emergency running means, which generate the control signal from this control signal in emergency operation.
  • control means for activating the emergency running means are provided, which activate the emergency running means when an error in the control means has been detected. Switching to emergency operation and the associated control by the emergency running agent is only in an emergency. In normal operation, however, the control means continues to generate the control signal. This can reduce the complexity of the emergency means, since in normal operation the control means covers the usually more complex functionality.
  • FIGS. 1 to 3 show block diagrams of several exemplary embodiments of the device according to the invention for safe signal generation.
  • a control means 10 and an emergency running means 30 is a
  • the control means 10 generates an output signal 13 which is fed to the emergency operation switching means 32.
  • a trigger signal 18 provided by the control means 10 is processed by a monitoring means 20.
  • the control means 10 also generates an emergency operation control signal 15 for the emergency running means 30.
  • the emergency running means 30 also receives a monitoring output signal 22 generated by a monitoring means 20.
  • the emergency running means 30 generates an emergency operation output signal 34 and an emergency operation control signal 36
  • the emergency operation switching means 32 can be changed in its switch position. In one switch position, the emergency operation switching means 32 forwards the output signal 13 of the control means 10 as a control signal 14 to a switching means 16. In the other switch position, the emergency operation switching means 32 forwards the output signal 13 of the control means 10 as a control signal 14 to a switching means 16. In the other switch position, the emergency operation switching means 32 forwards the output signal 13 of the control means 10 as a control signal 14 to a switching means 16. In the other
  • the emergency operation switching means 32 forwards the emergency operation output signal 34 of the emergency operation means 30 to the switching means 16 as a control signal 14.
  • a safety-relevant component can be activated or deactivated.
  • control means 12 are supplied with the control signal 12 and a reset signal 24, which is generated by the monitoring means 20.
  • the control means 10 in turn outputs the output signal 13 to the emergency operation switching means 32, the trigger signal 18 to the monitoring means 20 and the emergency operation control signal 15 to the emergency operation means 30.
  • the emergency running means 30 emits the emergency running signal 34 and the emergency running control signal 36 to the emergency running switching means 32, the output signal of which is supplied to the switching means 16 for control purposes as the control signal 14.
  • a second control means 40 is provided, which via a
  • Communication line 44 exchanges data with the control means 10.
  • An emergency operation control signal 42 of the second control means 40 is output to the emergency operation means 30.
  • a first control signal 54 reaches both a first inverter 51 and a first switching means 58.
  • a fourth switching means 64 is controlled with the output signal of the first inverter 51.
  • a second control signal 56 is supplied to both a second switching means 60 and a second inverter 52.
  • the output signal of the second inverter 52 is used as a control signal for the third switching means 62.
  • the first switching means 58 and the third switching means 62 are connected in series, as are the second switching means 60 and the fourth switching means 64.
  • the first switching means 58 and the third switching means 62 are connected in parallel with the second and fourth switching means 60, 64 which are in series.
  • the common potentials of the third and fourth switching means 62, 64 are connected (by way of example) to ground, and the common potentials of the first and second switching means 58, 60 (example) are connected to the load 50.
  • a feedback line 66 is provided to detect the signal with which the load 50 is controlled.
  • the exemplary embodiment according to FIG. 1 is used, for example, for the safe signal generation for an ignition starter switch in a motor vehicle.
  • the corresponding signal of the desired ignition state is sent as a control signal 12 to both the control means 10 and the emergency running means 30.
  • the control means 10 processes the incoming control signal 12 with the aid of further information, if necessary.
  • An automatic start / stop is implemented in the control means 10, for example, which determines the ignition (as an example for a load 50) when certain
  • control means 10 therefore generates an output signal 13 as a function of the control signal 12, with which the switching means 16 is controlled in normal operation, for example for activating or deactivating the ignition.
  • the switching means 16 Since the ignition is a safety-critical function, the switching means 16 must also be controlled correctly if the control means 10 does not work properly.
  • the emergency running means 30 with the associated emergency running switching means 32 is provided. In the event of a fault in the control means 10, the emergency running means 30 controls the emergency running switching means 32 in such a way that the emergency running switching means 32 no longer does this
  • Output signal 13 of the control means 10 is looped through as the control signal 14 for the switching means 16, but rather the emergency operation output signal 34.
  • the emergency operation output signal 34 is the corresponding state of the control signal 12.
  • the control signal 12 is simply referred to as the emergency operation means 30
  • Emergency running output signal 34 looped through.
  • additional logic could also be integrated in the emergency running means 30, which depends on the control signal 12 certain conditions into the emergency running output signal 34.
  • the emergency switch-on means 32 is then switched over as a control signal for forwarding the emergency running output signal 34 if a faulty operation of the control means 10 has been detected.
  • the emergency running function of the emergency running means 30 can either activate the control means 10 itself or the monitoring means 20.
  • a self-diagnosis function is integrated in the control means 10 in order to monitor its own functionality. If the control means 10 detects its own fault, it sends a corresponding message via the emergency operation control signal 15 to the emergency operation means 30 to activate the emergency operation function, as already described above.
  • Monitoring means 20 is provided for additional or alternative monitoring of control means 10. This is, for example, a so-called watchdog.
  • the control means 10 emits a trigger signal 18 to the monitoring means 20.
  • the monitoring means 20 checks the incoming trigger signal 18 whether it matches an expected trigger signal. For example, a frequency deviation of the trigger signal 18 could be used as a criterion for an error.
  • the monitoring means 20 detects a significant deviation of the trigger signal 18 from the expected
  • a second monitoring means of the control means 10 is a second one
  • Control means 40 are provided. Based on the bidirectional communication, if necessary, via the
  • Communication line 44 is routed between the first control means 10 and the second control means 40, the second control means 40 monitors the functionality of the
  • Control means 10 For this purpose, for example, the second control means 40 could send test signals to the control means 10, which sends back corresponding response signals. On the basis of the incoming response signals, the second control means 40 determines whether the control means 10 is still functioning properly. Should the incoming response of the control means 10 differ from the expected one, the second control means 40 concludes that the operation is faulty and activates the emergency operation stored in the emergency operation means 30 via the emergency operation control signal 42. The emergency operation corresponds to that described in embodiment 1. Reference is made to the corresponding explanations. The second control means 40 essentially takes over the function of the monitoring means 20 of the first exemplary embodiment. So that's it
  • Monitoring means 20 freed from these tasks and can take over the so-called watchdog function. Again, the monitoring means 20 monitors the trigger signal 18 for significant, unexpected deviations. Should such occur, the monitoring means 20 sends a corresponding reset signal 24 to the control means 10. The control means 10 is restarted. The second control means 40 recognizes this reset and then activates the emergency operation function of the emergency operation means 30 at the latest. As in the exemplary embodiment according to FIG. 1, the control means can 10 itself activate the emergency running function of the emergency running means 30. This could be the case if the control means 10 itself recognizes that it is working incorrectly and / or if it detects an error in the second control means 40. Alternatively, the emergency running function of the emergency running means 30 could be triggered by the monitoring means 20 after a predeterminable number of reset signals 24. The so-called watchdog function of the monitoring means 20 would be retained.
  • the switching means 16 could have a structure as shown in FIG. 3.
  • the control means 10 would generate two signals, the first and the second control signal 54, 56 instead of only one output signal 13. Just one of the two
  • Control signals 54, 56 would have to be fail-safe (as described above).
  • the non-fail-safe control signal only has to assume a defined state in the event of an error.
  • the control means 10 receives and processes the signal tapped from the return line 66.
  • a third switching means 62 is also connected in series with the first switching means 58. If this does not open more example, the first switching means 58 so could the desired Huaweisi 'gnal done yet by opening the third switch means 62nd However, if the first switching means 58 could no longer be closed, the desired initial state could be achieved by closing the second and fourth switching means 60, 64.
  • the first and second control signals 54, 56 In the basic state, that is to say when the load 50 is switched off, the first and second control signals 54, 56 have a logic zero state. In cooperation with the two inverters 51, 52, the third and fourth switching means 62, 64 are closed. Since the first and second switching means 58, 60 remain open, the load 50 is deactivated.
  • the control means 10 If the load 50 is to be switched on, as a change in the control signal 12 indicates, the control means 10 generates a second control signal 56 with the level logic one. The second switching means 60 is thereby closed. The right path of the switching means 16 is now turned on and thus the load 50 is switched on. In parallel to this, the control means 10 detects the state of the load 50 via the return line 66. When the switching means 16 operates properly, a level of the second control signal 56 of logic one also leads to an energization of the load 50.
  • control means 10 recognizes the desired
  • Activation of the load 50 has no desired effect, it changes to an emergency mode.
  • the left path of the switching means 16 is activated by changing the first control signal 54 to logic one.
  • the first switch 58 is closed and the load 50 is thereby switched on.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Safety Devices In Control Systems (AREA)
  • Looms (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

L'invention concerne un dispositif permettant de produire des signaux de manière fiable, qui comprend un moyen de commande (10) auquel est acheminé un signal de commande (12). Le moyen de commande (10) produit, en fonction du signal de commande (12), un signal d'amorçage (13,14) pour amorcer une charge (50). Il est prévu des moyens de fonctionnement exceptionnel en cas d'urgence (30,32), qui produisent le signal d'amorçage (34 ,14) en mode de fonctionnement exceptionnel, en fonction du signal de commande (12).
EP01913641A 2000-03-09 2001-02-15 Dispositif pour produire des signaux de maniere fiable Withdrawn EP1264097A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06101384A EP1679729B1 (fr) 2000-03-09 2001-02-15 Dispositif destiné à une émission de signal sûre

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10011410 2000-03-09
DE10011410A DE10011410A1 (de) 2000-03-09 2000-03-09 Vorrichtung zur sicheren Signalerzeugung
PCT/DE2001/000565 WO2001066926A1 (fr) 2000-03-09 2001-02-15 Dispositif pour produire des signaux de maniere fiable

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP06101384A Division EP1679729B1 (fr) 2000-03-09 2001-02-15 Dispositif destiné à une émission de signal sûre

Publications (1)

Publication Number Publication Date
EP1264097A1 true EP1264097A1 (fr) 2002-12-11

Family

ID=7634047

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06101384A Expired - Lifetime EP1679729B1 (fr) 2000-03-09 2001-02-15 Dispositif destiné à une émission de signal sûre
EP01913641A Withdrawn EP1264097A1 (fr) 2000-03-09 2001-02-15 Dispositif pour produire des signaux de maniere fiable

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06101384A Expired - Lifetime EP1679729B1 (fr) 2000-03-09 2001-02-15 Dispositif destiné à une émission de signal sûre

Country Status (8)

Country Link
US (1) US20030181998A1 (fr)
EP (2) EP1679729B1 (fr)
KR (1) KR20020083167A (fr)
CN (1) CN1304745C (fr)
DE (2) DE10011410A1 (fr)
ES (1) ES2307263T3 (fr)
MX (1) MXPA02008720A (fr)
WO (1) WO2001066926A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE10127053A1 (de) 2001-06-02 2002-12-05 Bosch Gmbh Robert Vorrichtung zur Steuerung der Energieversorgung eines Kraftfahrzeugs
DE10139616B4 (de) * 2001-08-11 2010-12-09 Robert Bosch Gmbh Steuerkreis mit Redundanzfunktion
EP1593006B1 (fr) * 2003-02-10 2014-11-19 Lenze Automation GmbH Surveillance de securite sans redondance pour un dispositif d'entrainement electrique (avec capteur de mesure)
DE102005034911A1 (de) * 2005-07-26 2007-02-01 BSH Bosch und Siemens Hausgeräte GmbH Verfahren und Schaltungsanordnung zur gesicherten Ansteuerung von Aktoren, Sensoren bzw. Verbrauchern in einem diese enthaltenden elektrischen Gerät, insbesondere elektrischen Hausgerät
DE102008009905A1 (de) * 2008-02-19 2009-08-20 Robert Bosch Gmbh Verfahren zum Bereitstellen einer Notlauffunktion
DE102011081184A1 (de) * 2011-08-18 2013-02-21 Siemens Aktiengesellschaft Verfahren zum Schalten in einer Anordnung von Leistungsschaltern sowie Anordnung aus einer Mehrzahl von Leistungsschaltern
CN104865905B (zh) * 2014-02-21 2018-02-23 上海西门子医疗器械有限公司 通讯控制装置、通讯控制方法及医疗设备
DE102015224067A1 (de) * 2015-12-02 2017-06-08 Borgward Trademark Holdings Gmbh Batteriemanagementsystem, Fahrzeug damit und Verfahren zur Batterierelais-Steuerung
EP3288057A1 (fr) * 2016-08-26 2018-02-28 Siemens Aktiengesellschaft Commutateur oriente vers la securite
EP4116620B1 (fr) * 2021-07-09 2026-02-18 Leuze electronic GmbH + Co. KG Dispositif de surveillance et procédé de fonctionnement d'un dispositif de surveillance

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EP0569227A1 (fr) * 1992-05-08 1993-11-10 Zexel Corporation Système de commande d'injection de carburant pour moteur à combustion interne

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ATE10035T1 (de) * 1980-02-13 1984-11-15 Werkzeugmaschinenfabrik Oerlikon-Buehrle Ag Vorrichtung zum ueberwachen eines raddrehzahlgebers.
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JPS593596A (ja) * 1982-06-30 1984-01-10 日本警備保障株式会社 警報装置
DE3322074A1 (de) * 1982-07-23 1984-01-26 Robert Bosch Gmbh, 7000 Stuttgart Notlaufeinrichtung fuer mikrocomputergesteuerte systeme
DE3531198A1 (de) * 1985-08-31 1987-03-12 Bosch Gmbh Robert Sicherheits- und notfahrverfahren fuer eine brennkraftmaschine mit selbstzuendung und einrichtung zu dessen durchfuehrung
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Also Published As

Publication number Publication date
ES2307263T3 (es) 2008-11-16
EP1679729B1 (fr) 2008-07-02
MXPA02008720A (es) 2004-05-05
DE10011410A1 (de) 2001-09-20
CN1416503A (zh) 2003-05-07
US20030181998A1 (en) 2003-09-25
EP1679729A3 (fr) 2006-11-22
EP1679729A2 (fr) 2006-07-12
WO2001066926A1 (fr) 2001-09-13
KR20020083167A (ko) 2002-11-01
DE50114079D1 (de) 2008-08-14
CN1304745C (zh) 2007-03-14

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