EP0446453A1 - Procédé et dispositif de commande et/ou de régulation du moteur automobile à combustion - Google Patents

Procédé et dispositif de commande et/ou de régulation du moteur automobile à combustion Download PDF

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Publication number
EP0446453A1
EP0446453A1 EP19900124329 EP90124329A EP0446453A1 EP 0446453 A1 EP0446453 A1 EP 0446453A1 EP 19900124329 EP19900124329 EP 19900124329 EP 90124329 A EP90124329 A EP 90124329A EP 0446453 A1 EP0446453 A1 EP 0446453A1
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EP
European Patent Office
Prior art keywords
detection element
combustion engine
internal combustion
signal
motor vehicle
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
EP19900124329
Other languages
German (de)
English (en)
Other versions
EP0446453B1 (fr
Inventor
Werner Dipl.-Phys. Nitschke
Reinhard Dipl.-Ing. Pfeufer
Wolfgang Dipl.-Ing. Drobny
Hans-Peter Dipl.-Ing. Goldhammer (Fh)
Johann Dipl.-Ing. Schmid (Fh)
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 EP0446453A1 publication Critical patent/EP0446453A1/fr
Application granted granted Critical
Publication of EP0446453B1 publication Critical patent/EP0446453B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F02D11/107—Safety-related aspects
    • 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
    • F02D41/22—Safety or indicating devices for abnormal conditions
    • F02D41/222—Safety or indicating devices for abnormal conditions relating to the failure of sensors or parameter detection devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0404—Throttle position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
    • F02D2200/602—Pedal position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/08—Redundant elements, e.g. two sensors for measuring the same parameter

Definitions

  • the invention relates to a method and a device for electronic control and / or regulation of an internal combustion engine of a motor vehicle according to the preambles of the independent claims.
  • Such a method or such a device is known from DE-OS 36 21 937.
  • a monitoring device for an electronic control device in a motor vehicle is proposed, a detection device for determining an operating parameter of the internal combustion engine and / or the motor vehicle, in particular the respective position of an element determining the performance of the internal combustion engine, such as throttle valve or control rod and / or accelerator pedal, being provided and by comparing the signal values emitted by the detection element with predefined limit values, fault states in the respective detection element are inferred.
  • the invention is based on the object of providing measures in a method or a device for controlling and / or regulating an internal combustion engine, with the aid of which comprehensive safety monitoring is ensured.
  • the detection element for one operating parameter of the internal combustion engine or the motor vehicle generates several signals representing the operating parameter, which signals are designed such that when the operating parameter determined by the detection element changes, the signal quantities change in opposite directions.
  • a detection element assigned to the accelerator pedal generates at least one signal representing the position of the accelerator pedal and at least depending on its regulation of the throttle valve position and thus the air supply to the internal combustion engine.
  • the detection element which consists of two potentiometers connected to the accelerator pedal
  • the position signal of the one is compared in a logic unit with a threshold value derived from the position signal of the second potentiometer, and in this way the correct function of the detection element, in particular of the first potentiometer, detected.
  • Such a procedure cannot ensure a reliable check of the respective detection element, since possible types of error such as shunts between the two potentiometer wipers or non-linearities of the potentiometers cannot be detected.
  • a position detection element for a movable part in a motor vehicle is known, which is designed in the form of a multi-path potentiometer and serves to improve the resolution of the position detection in predetermined areas of the position of the element connected to it.
  • the procedure according to the invention has the advantage that both the nonlinearities of the detection element or characteristic curve deviations as well as shunts between the signal lines of the sensors can be detected due to the electrical countercurrent of the signals emitted by the respective detection element consisting of several sensors. Comprehensive security monitoring of the detection element can thus be ensured by the procedure according to the invention.
  • the procedure according to the invention offers particular advantages in connection with a detection element designed as a double potentiometer for determining the position of a performance-determining element, such as throttle valve, control rod and / or a control element that can be actuated by the driver, such as an accelerator pedal of an electronic accelerator pedal.
  • a detection element designed as a double potentiometer for determining the position of a performance-determining element, such as throttle valve, control rod and / or a control element that can be actuated by the driver, such as an accelerator pedal of an electronic accelerator pedal.
  • FIG. 1 shows an exemplary circuit arrangement for realizing the idea according to the invention
  • FIG. 2 shows a flow chart to clarify the signal evaluation.
  • FIG. 1 shows a detection element 10 for the position of an element of a motor vehicle, not shown, which determines the performance of the internal combustion engine, in particular a power actuator such as a throttle valve or control rod and / or an accelerator pedal of an electronic accelerator pedal system, which comprises two sensors or transmitters P1 and P2, which are shown in FIG. 1 as a so-called double potentiometer.
  • the resistance track 12 is connected via its line 16 to the positive pole of the supply voltage, via line 18 to the negative pole of the supply voltage.
  • the resistance path 14 of the sensor P1 is linked via line 20 to the positive, via line 22 to the negative pole of the supply voltage.
  • Both resistance tracks 12, 14 are covered by movable grinders 24, 26 connected to the respective performance-determining element of the motor vehicle.
  • the two grinders 24 and 26 are coupled to one another via a mechanical connection 28 such that both move parallel to one another in the same direction, depending on the power-determining element (not shown).
  • the wiper sweeping over the first resistance track 12 is guided to a connection point P1S via a line 30 and a resistor 32 with the resistance value RS1. while the wiper 26 crossing the second resistance path 14 is conducted via line 34 and resistor 36 with resistance value RS2 to connection point P2S.
  • a resistor 38 with the resistance value R is connected to the connection point P1S, and a line 40 is connected on the one hand, which connects the connection point P1S to the computing unit 44.
  • the resistor 38 is connected with its second connection to the negative pole of the supply voltage.
  • the resistor 46 with the resistance value R and the line 48, which connects the connection point P2S to a computing or evaluation unit 44, are connected to the connection point P2S.
  • the other connection of the resistor 46 is connected to the positive pole of the supply voltage in accordance with the electrical counter-current of the two sensors.
  • the connecting line 40 connects the connection point P1S of the first sensor to an input 42 of the computing unit 44, while the line 48 connects the connecting point P2S of the second sensor to a second input 50 of the computing unit 44.
  • the computing unit 44 in the illustration of which FIG. 1 does not include components which do not directly support the procedure according to the invention, comprises a first A / D converter 52 assigned to the input 42 and a second A / D converter assigned to the second input 50.
  • Converter 54 a processing unit 55 and an output stage 56.
  • the output stage 56 is assigned to the output 57 of the computing unit 44, to which line 58 is applied, which connects the computing unit 44 to devices 60 for influencing an operating parameter of an internal combustion engine.
  • the devices 60 are a power actuator provided with an electrically actuable servomotor, such as, for example, a throttle valve for controlling the air throughput to the internal combustion engine or a control rod for influencing the amount of fuel supplied to the internal combustion engine, or a device for controlling injection valves.
  • an electrically actuable servomotor such as, for example, a throttle valve for controlling the air throughput to the internal combustion engine or a control rod for influencing the amount of fuel supplied to the internal combustion engine, or a device for controlling injection valves.
  • the computing unit 44 naturally has further inputs and outputs, not shown, which are used to carry out further control functions, such as ignition, fuel injection and / or idling control.
  • the performance-determining element of the motor vehicle or the internal combustion engine which in the preferred exemplary embodiment is a throttle valve or control rod and / or an accelerator pedal of an electronic accelerator pedal system, is rigid with the two grinders 24 and 26 or signal lines 30 and 34 of the two sensors P1 and P2 are connected, so that a change in position of this element leads to a corresponding change in position of the two wipers 24 and 26.
  • a change in position of the two wipers takes place in the same direction, in the same direction.
  • a movement of the throttle valve in the direction of its fully open position means a change in the sliders 24 and 26 in FIG.
  • connection points P1S and P2S are then corresponding to the position of the wipers 24 and 26 at a potential value formed by the resistors RS1 and R or RS2 and R, which represent a measure of the respective positions of the wipers and thus of the position of the power-determining element . It is It should be noted that a change in the position of the power-determining element in the direction of a larger opening leads to an increase in the potential at the connection point P1S and to a lowering of the potential at the connection point P2S, and the two sensors accordingly behave in opposite electrical directions.
  • the two voltage values corresponding to the positions of the sensors P1 and P2 are fed to the inputs 42 and 50 of the computing unit 44.
  • the A / D converters assigned to the inputs form digital signals from the analog voltage signals for further processing in processing unit 55.
  • the voltage signals are converted into corresponding position values for the respective power-determining element of the motor vehicle or the internal combustion engine, and on the basis of these position values, which in the case of an electronic accelerator pedal system correspond to a target or an actual value, a corresponding control of the devices 60 is carried out via the output stage 56.
  • the processing unit 55 In order to improve the security of the system, it is provided in the processing unit 55 that the values read in via the inputs 42 and 50 and the A / D converters 52 and 54 are checked individually and with one another to determine whether the detection element 10 is functioning correctly. It is also provided that appropriate measures are taken in the event of a recognized inability to function.
  • the procedure for checking the function of the detection element 10 and the measures to be taken when the inability to function is detected are shown in FIG. 2 on the basis of a flow chart executed in the processing unit 55.
  • Step 102 the position values determined by the respective sensor are read in and compared in query block 104 with their upper maximum limit. If it is recognized in step 104 that the position value of the respective sensor is greater than its maximum permissible value, an individual error of the respective sensor is recognized in block 106 and a corresponding mark is set and the program part continues.
  • An individual fault identified after step 106 indicates a short circuit either from the negative to the positive pole of the supply voltage of the sensor or from the connection point P1S or P2S to the positive pole of the supply voltage or to an interruption of the connection at the negative pole of the supply voltage of the respective sensor.
  • a corresponding mark can also be set in step 106.
  • step 108 If it has been determined in step 104 that the respective position value is below its upper limit, it is checked in step 108 whether the position value is less than a lower minimum threshold. In the opposite case, the individual fault detection is completed in step 110 by setting a mark for the functionality of the individual sensors. If, according to step 108, the position value of the respective sensor is below the predetermined minimum value, a second individual error is recognized in step 112 and a corresponding mark is set. This second individual fault can indicate short circuits from the positive pole of the supply voltage to the negative, from the connection point P1S or P2S to the negative pole of the supply voltage or to interruptions in the positive supply voltage lines or the wiper or connection lines.
  • step 116 This limp home function can either be from a shutdown of the System or from a continuation of the function of the system based on the sensor that is considered to be functioning correctly.
  • step 116 the program part is ended and is carried out again.
  • step 118 the operability of the entire detection element 10 is checked in step 118 by comparing the amount of a difference in the position values generated by the sensors with a predetermined threshold. If the difference is below the predetermined threshold, the operability of the detection element is determined in step 120 and the system function is taken up as normal operation. However, if the difference after step 118 is above the predetermined threshold, a flag is set for an error of the detection element in step 122 and an emergency operation function is initiated.
  • An error detected in step 122 indicates shunts between the supply voltage poles and the wiper connection points, a shunt, in contrast to the short circuit, having a finite contact resistance.
  • the emergency operation measure taken in step 122 can consist in either stopping the system or continuing the system function on the basis of the respective smaller position value.
  • the procedure according to the invention can also be applied to detection organs with a plurality of sensors, at least one of the sensors then having electrical opposition in relation to the others and the position signal of this or these sensors being used to check the function of the others.
  • a further advantageous embodiment of the detection element according to FIG. 1 results from the different selection of the resistance values of the resistors 38 and 46.
  • This measure also in connection with the dimensioning of the resistors 32 and 36 and / or the resistance tracks 12 and 14, leads to the above advantages shown regarding the choice of the resistances of the resistance tracks 12 and 14.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
EP90124329A 1990-02-10 1990-12-15 Procédé et dispositif de commande et/ou de régulation du moteur automobile à combustion Expired - Lifetime EP0446453B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4004085A DE4004085A1 (de) 1990-02-10 1990-02-10 Verfahren und einrichtung zur elektronischen steuerung und/oder regelung einer brennkraftmaschine eines kraftfahrzeugs
DE4004085 1990-02-10

Publications (2)

Publication Number Publication Date
EP0446453A1 true EP0446453A1 (fr) 1991-09-18
EP0446453B1 EP0446453B1 (fr) 1993-11-24

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EP90124329A Expired - Lifetime EP0446453B1 (fr) 1990-02-10 1990-12-15 Procédé et dispositif de commande et/ou de régulation du moteur automobile à combustion

Country Status (5)

Country Link
US (1) US5260877A (fr)
EP (1) EP0446453B1 (fr)
JP (1) JP3588127B2 (fr)
CZ (1) CZ279398B6 (fr)
DE (2) DE4004085A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0841219A2 (fr) 1996-10-12 1998-05-13 Hella KG Hueck & Co. Dispositif de commande pour déterminer la position d'un élément mobile dans un véhicule
EP0712463B1 (fr) * 1993-08-05 1999-04-28 Pavilion Technologies Inc. Moniteur virtuel d'emissions pour automobile
FR2860267A1 (fr) * 2003-09-30 2005-04-01 Bosch Gmbh Robert Procede de gestion d'un moteur thermique
WO2016050558A1 (fr) * 2014-10-01 2016-04-07 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Dispositif d'émission et de réception d'un signal de capteur

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DE4229774C2 (de) * 1992-09-05 2002-06-20 Bosch Gmbh Robert Vorrichtung zur Steuerung einer Brennkraftmaschine
DE4235880C2 (de) * 1992-10-23 2003-07-17 Bosch Gmbh Robert Verfahren und Vorrichtung zur Erfassung einer veränderlichen Größe bei Fahrzeugen
JP2855393B2 (ja) * 1993-02-05 1999-02-10 本田技研工業株式会社 内燃機関の制御装置
JP3286420B2 (ja) * 1993-09-28 2002-05-27 株式会社ユニシアジェックス 内燃機関の吸排気弁駆動制御装置
DE4335913C2 (de) * 1993-10-21 2003-05-08 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
JP2943045B2 (ja) * 1994-04-22 1999-08-30 株式会社ユニシアジェックス 多気筒内燃機関の失火診断装置
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JP3120268B2 (ja) * 1995-03-22 2000-12-25 株式会社ユニシアジェックス 多気筒内燃機関の失火診断装置
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JP3463463B2 (ja) * 1996-06-28 2003-11-05 株式会社デンソー センサの異常診断装置
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DE19703685C2 (de) * 1997-01-31 2003-06-18 Siemens Ag Verfahren und Einrichtung zum Steuern einer Brennkraftmaschine
JPH10238372A (ja) * 1997-02-27 1998-09-08 Aisan Ind Co Ltd スロットルバルブ制御装置
JP3116868B2 (ja) * 1997-07-23 2000-12-11 トヨタ自動車株式会社 リニアポジションセンサの異常検出方法
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US6237564B1 (en) 2000-02-25 2001-05-29 Ford Global Technologies, Inc. Electronic throttle control system
US6463797B2 (en) 2000-02-25 2002-10-15 Ford Global Technologies, Inc. Electronic throttle system
US6493618B2 (en) 2000-03-15 2002-12-10 Toyota Jidosha Kabushiki Kaisha Vehicle control using multiple sensors
JP2001264128A (ja) 2000-03-22 2001-09-26 Mitsubishi Electric Corp センサの異常検出装置、車両の制御装置
EP1136681A3 (fr) 2000-03-24 2003-08-06 Ford Global Technologies, Inc. Système de commande électronique de papillon
DE10132833A1 (de) * 2001-07-06 2003-01-16 Bosch Gmbh Robert Verfahren und Vorrichtung zur Überwachung eines Drucksensors
JP4409800B2 (ja) 2001-11-28 2010-02-03 三菱電機株式会社 エンジン制御装置
US6691679B2 (en) 2001-11-29 2004-02-17 Ford Global Technologies, Llc System and method for controlling an operational position of a throttle valve in an engine
DE10159110A1 (de) * 2001-12-01 2003-06-12 Hella Kg Hueck & Co Induktiver Winkel- oder Positionssensor für ein Kraftfahrzeug
DE10159258B4 (de) * 2001-12-03 2004-04-08 Siemens Ag Anordnung zur Auswertung der Stellung eines Drehpotentiometers
DE10222634B4 (de) * 2002-05-17 2009-04-02 Ab Elektronik Gmbh Verfahren zur Überwachung von Versorgungsspannungen bei Drehwinkelsensoren mit Hall-Elementen
DE10222468A1 (de) * 2002-05-22 2003-12-11 A B Elektronik Gmbh Vorrichtung zur Erzeugung von Ausgangsspannungen
US6927566B2 (en) 2002-05-22 2005-08-09 Ab Eletronik Gmbh Device for generating output voltages
JP2004324720A (ja) * 2003-04-23 2004-11-18 Aisin Aw Co Ltd 回転角度検出センサーの故障検出装置
DE10360422A1 (de) * 2003-12-19 2005-07-21 Brose Schließsysteme GmbH & Co.KG Kraftfahrzeug
US8538622B2 (en) 2005-02-18 2013-09-17 GM Global Technology Operations LLC Redundant device positioning sensing system for a vehicle
JP4294012B2 (ja) 2005-07-28 2009-07-08 三菱電機株式会社 電子スロットル制御装置
DE102005047013B4 (de) * 2005-09-30 2018-10-11 HELLA GmbH & Co. KGaA Geber
FR2897447B1 (fr) * 2006-02-14 2008-05-30 Peugeot Citroen Automobiles Sa Interface electronique pour une pedale de commande d'un vehicule automobile
JP5131341B2 (ja) * 2010-12-10 2013-01-30 株式会社デンソー 位置検出装置
JP5435020B2 (ja) 2011-12-22 2014-03-05 株式会社デンソー 位置検出装置
JP5472761B2 (ja) 2012-02-17 2014-04-16 株式会社デンソー 位置検出装置
JP5930995B2 (ja) * 2013-03-25 2016-06-08 株式会社神戸製鋼所 電気レバーシステム
JP6095845B2 (ja) 2014-02-19 2017-03-15 三菱電機株式会社 モータ回転角度検出装置及びこれを用いた電動パワーステアリング装置
JP2015175759A (ja) * 2014-03-17 2015-10-05 株式会社豊田自動織機 電流測定装置
JP2018040586A (ja) 2016-09-05 2018-03-15 株式会社デンソー 角度検出機構、及び角度検出システム
JP6883239B2 (ja) * 2017-02-27 2021-06-09 株式会社アイシン 検出装置

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EP0289766A2 (fr) * 1987-05-02 1988-11-09 VDO Adolf Schindling AG Dispositif pour saisie et/ou modification de données de fonctionnement de véhicules à moteur à combustion
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0712463B1 (fr) * 1993-08-05 1999-04-28 Pavilion Technologies Inc. Moniteur virtuel d'emissions pour automobile
EP0841219A2 (fr) 1996-10-12 1998-05-13 Hella KG Hueck & Co. Dispositif de commande pour déterminer la position d'un élément mobile dans un véhicule
FR2860267A1 (fr) * 2003-09-30 2005-04-01 Bosch Gmbh Robert Procede de gestion d'un moteur thermique
WO2016050558A1 (fr) * 2014-10-01 2016-04-07 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Dispositif d'émission et de réception d'un signal de capteur
US10003864B2 (en) 2014-10-01 2018-06-19 Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh Device for transmitting and receiving a sensor signal

Also Published As

Publication number Publication date
JP3588127B2 (ja) 2004-11-10
JPH04214949A (ja) 1992-08-05
CS9100296A2 (en) 1991-08-13
US5260877A (en) 1993-11-09
DE4004085A1 (de) 1991-08-14
DE59003628D1 (de) 1994-01-05
EP0446453B1 (fr) 1993-11-24
CZ279398B6 (cs) 1995-04-12

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