EP1327761A3 - Process for verifying the operation of two sensors - Google Patents

Process for verifying the operation of two sensors Download PDF

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Publication number
EP1327761A3
EP1327761A3 EP02025771A EP02025771A EP1327761A3 EP 1327761 A3 EP1327761 A3 EP 1327761A3 EP 02025771 A EP02025771 A EP 02025771A EP 02025771 A EP02025771 A EP 02025771A EP 1327761 A3 EP1327761 A3 EP 1327761A3
Authority
EP
European Patent Office
Prior art keywords
determined
transmitter
encoders
angular position
shaft
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
EP02025771A
Other languages
German (de)
French (fr)
Other versions
EP1327761A2 (en
EP1327761B1 (en
Inventor
Ingolf Rupp
Michael Lehner
Elmar Pietsch
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 EP1327761A2 publication Critical patent/EP1327761A2/en
Publication of EP1327761A3 publication Critical patent/EP1327761A3/en
Application granted granted Critical
Publication of EP1327761B1 publication Critical patent/EP1327761B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • 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
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/077—Circuits therefor, e.g. pulse generators
    • F02P7/0775—Electronical verniers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

Es wird ein Verfahren zum Überprüfen der Funktionsfähigkeit eines ersten und eines zweiten Gebers (2, 4) vorgeschlagen, wobei mit den beiden Gebern (2, 4) unabhängig voneinander die Winkelstellung einer Welle ermittelbar ist oder unabhängig voneinander die Winkelstellungen zweier Wellen (1, 3) ermittelbar sind, deren Drehbewegungen miteinander verknüpft sind. Das erfindungsgemäße Verfahren ermöglicht eine kontinuierliche Überprüfung der Funktionsfähigkeit während des bestimmungsgemäßen Einsatzes der beiden Geber (2, 4) und damit auch eine sofortige Diagnose des Ausfalls eines der beiden oder auch beider Geber (2, 4).
Dazu wird zu einem ersten Zeitpunkt t1 mit Hilfe des ersten Gebers (2) die Winkelstellung der dem ersten Geber (2) zugeordneten Welle (1) ermittelt. Ebenfalls zum Zeitpunkt t1 wird mit Hilfe des zweiten Gebers (4) die Winkelstellung der dem zweiten Geber zugeordneten Welle (3) ermittelt. Dann wird zu einem zweiten Zeitpunkt t2 mit Hilfe des ersten Gebers (2) die Winkelstellung der dem ersten Geber (2) zugeordneten Welle (1) ermittelt, und mit Hilfe des zweiten Gebers (4) wird die Winkelstellung der dem zweiten Geber (4) zugeordneten Welle (3) ermittelt. Anschließend werden für jeden der beiden Geber (2, 4) die Differenzen zwischen den zu den Zeitpunkten t1 und t2 ermittelten Winkelstellungen gebildet. Die so gebildeten Differenzsignale werden dann miteinander verglichen, um zu erkennen, ob die Funktionsfähigkeit mindestens eines der beiden Geber (2, 4) gestört ist.

Figure 00000001
A method for checking the operability of a first and a second transmitter (2, 4) is proposed, wherein the angular position of a shaft can be determined independently of one another with the two encoders (2, 4) or independently of one another the angular positions of two shafts (1, 3 ) can be determined, whose rotational movements are linked together. The method according to the invention enables a continuous check of the functionality during the intended use of the two encoders (2, 4) and thus also an immediate diagnosis of the failure of one of the two or both encoders (2, 4).
For this purpose, the angular position of the shaft (1) associated with the first transmitter (2) is determined at a first time t1 with the aid of the first transmitter (2). Also at the time t1, the angular position of the second encoder associated shaft (3) is determined by means of the second encoder (4). Then, at a second time t2, the angular position of the shaft (1) associated with the first transmitter (2) is determined with the aid of the first transmitter (2), and with the aid of the second transmitter (4) the angular position of the second transmitter (4) is determined. determined wave (3) determined. Subsequently, the differences between the angular positions determined at the times t1 and t2 are formed for each of the two encoders (2, 4). The difference signals thus formed are then compared with each other to detect whether the operability of at least one of the two encoders (2, 4) is disturbed.
Figure 00000001
EP20020025771 2002-01-15 2002-11-16 Process for verifying the operation of two sensors Expired - Lifetime EP1327761B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10201166 2002-01-15
DE2002101166 DE10201166A1 (en) 2002-01-15 2002-01-15 Procedure for checking the functionality of two encoders

Publications (3)

Publication Number Publication Date
EP1327761A2 EP1327761A2 (en) 2003-07-16
EP1327761A3 true EP1327761A3 (en) 2005-08-17
EP1327761B1 EP1327761B1 (en) 2008-02-20

Family

ID=7712112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020025771 Expired - Lifetime EP1327761B1 (en) 2002-01-15 2002-11-16 Process for verifying the operation of two sensors

Country Status (2)

Country Link
EP (1) EP1327761B1 (en)
DE (2) DE10201166A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010003524A1 (en) * 2010-03-31 2011-10-06 Robert Bosch Gmbh Circuit arrangement and method for evaluating signals of a crankshaft sensor and a camshaft sensor of an internal combustion engine
DE102013205618B3 (en) * 2013-03-28 2014-03-27 Mtu Friedrichshafen Gmbh Method and device for redundantly controlling the speed of an internal combustion engine
DE102019201730A1 (en) * 2019-02-11 2020-08-13 Robert Bosch Gmbh Method for determining a speed of an internal combustion engine
CN112682205B (en) * 2020-12-31 2022-02-08 清华大学 Engine rotating speed control method, electronic control equipment and engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04318254A (en) * 1991-04-18 1992-11-09 Mitsubishi Heavy Ind Ltd Abnormality detecting device for internal combustion engine
DE4313331A1 (en) * 1993-04-23 1994-10-27 Bosch Gmbh Robert Process for triggering processes dependent on the angular position of a rotating part
US5365904A (en) * 1993-07-23 1994-11-22 Caterpillar Inc. Redundant speed sensor for engine control
GB2293897A (en) * 1994-10-06 1996-04-10 Nissan Motor Fuel injection control system
US5699771A (en) * 1996-02-19 1997-12-23 Mitsubishi Denki Kabushiki Kaisha Fuel controller for internal combustion engine
DE19722016A1 (en) * 1997-05-27 1998-12-03 Bosch Gmbh Robert Arrangement for non-contact rotation angle detection

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04318254A (en) * 1991-04-18 1992-11-09 Mitsubishi Heavy Ind Ltd Abnormality detecting device for internal combustion engine
DE4313331A1 (en) * 1993-04-23 1994-10-27 Bosch Gmbh Robert Process for triggering processes dependent on the angular position of a rotating part
US5365904A (en) * 1993-07-23 1994-11-22 Caterpillar Inc. Redundant speed sensor for engine control
GB2293897A (en) * 1994-10-06 1996-04-10 Nissan Motor Fuel injection control system
US5699771A (en) * 1996-02-19 1997-12-23 Mitsubishi Denki Kabushiki Kaisha Fuel controller for internal combustion engine
DE19722016A1 (en) * 1997-05-27 1998-12-03 Bosch Gmbh Robert Arrangement for non-contact rotation angle detection

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 144 (M - 1386) 23 March 1993 (1993-03-23) *

Also Published As

Publication number Publication date
EP1327761A2 (en) 2003-07-16
DE50211733D1 (en) 2008-04-03
DE10201166A1 (en) 2003-07-24
EP1327761B1 (en) 2008-02-20

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