EP0225528A1 - Dispositif d'identification d'impulsions angulaires - Google Patents

Dispositif d'identification d'impulsions angulaires Download PDF

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Publication number
EP0225528A1
EP0225528A1 EP86116175A EP86116175A EP0225528A1 EP 0225528 A1 EP0225528 A1 EP 0225528A1 EP 86116175 A EP86116175 A EP 86116175A EP 86116175 A EP86116175 A EP 86116175A EP 0225528 A1 EP0225528 A1 EP 0225528A1
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EP
European Patent Office
Prior art keywords
code
elements
marks
absolute
angle
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
EP86116175A
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German (de)
English (en)
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EP0225528B1 (fr
Inventor
Hans Schreiber
Marek Molin
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.)
Siemens AG
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Siemens AG
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6286766&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0225528(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT86116175T priority Critical patent/ATE38413T1/de
Publication of EP0225528A1 publication Critical patent/EP0225528A1/fr
Application granted granted Critical
Publication of EP0225528B1 publication Critical patent/EP0225528B1/fr
Expired 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
    • 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
    • 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
    • F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
    • F02P7/0675—Electromagnetic pick-up devices, e.g. providing induced current in a coil with variable reluctance, e.g. depending on the shape of a tooth

Definitions

  • the invention relates to an arrangement according to the preamble of claim 1.
  • angle pulse In order to assign the angle mark that caused this angle pulse to a single angle pulse, it is necessary to assign at least one of the angle pulses (absolute pulse) a defined position of the shaft with respect to a fixed point by means of an additional identity identifier.
  • a code element is arranged in front of each angle mark, the identity identifier of which is the number of code marks contained in it.
  • the code marks are also scanned by the pulse generator and generate a code pulse. Each angular pulse is therefore determined by the number of preceding code pulses.
  • the largest number of code marks per code element and thus the length of the largest code element is determined by the number of angle marks to be distinguished: It has been shown that it is not possible to distinguish enough angle marks on an encoder disk with a given small diameter and with the usual size of the teeth.
  • the invention is therefore based on the object of finding an arrangement according to the preamble of claim 1 in which, with a given size and number of code marks, significantly more angle marks than absolute marks can be identified.
  • a code section of two or more code elements - number of elements E - is assigned to each angle mark to be identified, the code angles of which are equal to the sector angles of those E sector elements that precede the absolute mark in the direction of rotation, whereby also the Code angles of the code elements are arranged in the same order as the sector angles of the E sector elements.
  • a required total number of marks M of absolute marks includes a basic set T of different code elements which is equal to the logarithm of the total number of marks M plus 1, the base of the logarithm being equal to the number of elements E belonging to each code section.
  • a more favorable use of the space on the encoder disk can be achieved according to a development of the invention with the same total number of brands M, if one starts from a total quantity A of basic sizes that is larger than the previously calculated basic quantity T. In this case, one can then to form the Select code sections from the total number of different possible combinations of code elements as short as possible combinations.
  • the scope for designing the distribution of the angle marks over the circumference of the encoder disk increases considerably. Furthermore, the size of the blind spot per code section decreases with the number of angle marks.
  • the individual code marks can be arranged as desired in the code elements.
  • all code marks - code mark number Z - form a code track in which the code marks include the same basic angle ⁇ between them.
  • the individual sector angles of the sector elements and the total angles of the code sections are also so large that they can be divided without remainder by this basic angle.
  • the main track with the angular and absolute marks and the code track with the code marks and the associated sensors can be arranged such that the angular pulses separating the code pulses of adjacent code elements lie between two code pulses. In a particularly simple embodiment of the invention, however, the arrangement is selected such that each angular pulse overlaps with a code pulse.
  • the code track can lie on a separate code disk which is coupled to the encoder disk, preferably rotates synchronously with the encoder disk.
  • the code track can also be arranged on the encoder disc itself next to the main track.
  • a code sensor for the code track can also be accommodated in the same housing with the sensor for the main track.
  • the sensors can work in a known manner optically, magnetically or inductively in connection with corresponding brands. Teeth on the circumference of a metallic disc, which are scanned with an inductive sensor, have proven particularly useful as code and / or angle marks.
  • a particularly advantageous embodiment of the invention results in connection with the Hartig pulse generator known from US Pat. No. 4,121,112:
  • Those teeth that are supposed to serve as an absolute brand - brand teeth - have much lower eddy current losses.
  • they have a slot transverse to the direction of rotation, which is filled with a material of higher permeability.
  • the associated sensor evaluates the ratio of the magnetic conductivity (permeability ⁇ ) to the electrical conductivity of each individual tooth. This ratio is significantly different for slotted and unslit teeth.
  • the sensor delivers one pulse per tooth, but the angular pulse caused by a slotted tooth has a significantly larger amplitude; this function is independent of the speed.
  • such an encoder disk is preferably arranged on the camshaft rotating at half the speed of the crankshaft.
  • the code pulses can be used to determine the respective speed.
  • the main track with the angle marks and absolute marks can also be arranged on an encoder disk connected to the camshaft and the code track with the code marks can be arranged on a code disk connected to the crankshaft.
  • FIG. 1, 1 denotes a sensor arrangement with a circular sensor disk 11 made of ordinary iron, which is rotatable about an axis 10 and which is coupled to the camshaft of an internal combustion engine.
  • 54 teeth 12/13 are arranged equidistantly on the circumference of the encoder disk 11, of which individual teeth 12 have transverse slots 120 which are filled with a material of higher magnetic conductivity: these teeth also have the function of an absolute mark 121 and are referred to as mark teeth 12.
  • the distance between adjacent teeth - from center to center - is determined by a basic angle ⁇ , which is 6 ° 40 'for 54 teeth.
  • Each sector angle ß, code angle and total angle ⁇ is divisible by the base angle ⁇ without a remainder.
  • the distribution of the code sections over the circumference of the encoder disk 11 depends on the respective application and is schematically explained with reference to FIG 2 for a six-cylinder engine: there are in the second line the numbers of all 54 teeth are listed.
  • a 1 denotes a tooth with an absolute mark 121 - marker tooth 12 - and a 0 denotes a simple tooth code tooth 13 serving as a code mark.
  • the number of the assigned one is above the marker teeth 12 Absolute pulse (P1 to P15) specified.
  • the encoder disk 11 is assigned a pulse generator 14, which contains a sensor 141 and a discriminator 142.
  • the sensor 141 scans the teeth of the encoder disk 11 and evaluates the different ratio of electrical to magnetic conductivity of the teeth 12, 13, as is described in more detail in US Pat. No. 4,121,112.
  • the sensor delivers a sensor signal S - cf. the pulse diagram in FIG 4 - in the form of a pulse per tooth, but the angular pulse caused by a marker tooth 12 has a significantly larger amplitude than the code pulses caused by code teeth 13.
  • the discriminator 142 distinguishes these amplitudes and delivers as code signal H a code pulse C at a first output per code tooth and an angular pulse W at a second output per marker tooth.
  • the encoder signal H is fed to a decoder 2, which consists of an element decoder 21 and a section decoder 22 and which supplies the absolute pulses at different decoder outputs P1 to P15 assigned to the individual absolute marks.
  • FIG. 3 An embodiment of the decoder 2 with easily integrable components is shown in detail in FIG. 3, the discriminator 142 of the pulse generator 14 from FIG. 1 being shown again to facilitate the overview.
  • the element decoder 21 which essentially consists of a decoding counter 210 with five data outputs (corresponding to the maximum number of code teeth per code element).
  • the counter is replaced by the nagative flanks one over the entrance supplied counting signals 210 forwarded and supplies an element signal at the data outputs, which represents the number of code marks per code element and which consists of an H signal at one of the data outputs and the rest of L signals.
  • the counter receives an erase signal R210 via input R.
  • the code pulses C and the angle pulses W are processed with the aid of two RS flip-flops 211, 212, the set and reset inputs of which are each connected upstream of an AND gate.
  • Each flip-flop is implemented in a known manner with the help of two NOR gates.
  • each code section consists of two code elements
  • the section decoder 22 has as many latch elements 221, 222, which are connected in series and connected to the counter 210 of the element decoder 21: With the positive edge of a clock signal Q211 present at a clock input L, this is done element signal applied to the data inputs and passed on to the outputs by the negative edge of the clock signal.
  • the outputs of the two latch elements are connected to one another in a matrix-like manner via AND gates G1 to G15, in such a way that at the end of each clock signal another AND gate supplies an absolute pulse which is thus uniquely assigned to an absolute mark 121.
  • the inputs and outputs of the flip-flops 211, 212 of the element decoder 21 are directly linked to one another and via the OR-elements 214, 215 and a NOR-element 216 to the counter 210 in the manner shown.
  • the purpose of this combination is essentially to generate the clock signal Q211 with the occurrence of each angular pulse W and then an erase signal R210 for the counter 210.
  • This signal remains until the flip-flop 213 is reset by the first angular pulse W, so that the code pulses fed to the counter 210 via the OR gate 214 are not taken into account.
  • the counter 210 therefore only counts the negative edges of the code pulses C after the first angle pulse W.
  • the tank signal Q211 is then set, by means of which each latch element 221, 222 accepts the respective element signal at its input .
  • the counter 210 With the end of the angular pulse W at time t2, the counter 210 is reset by the erase signal R210, which the NOR gate 216 supplies if neither the angular pulse W nor the signal 210 is present.
  • the negative edge of the code pulse C coinciding with the angle pulse W must not be counted in this exemplary embodiment: This is achieved in that the clock signal Q 211 - via OR gate 214 at the counting input - is only deleted with the positive edge of the following code pulse C - time t4.
  • the latch element 221 therefore always indicates at its output the number of code pulses of the first code element and the latch element 222 the number of code pulses of the second code element of each code section.
  • the combination of these two numbers changes after each code element and is therefore an identity identifier for each code section and the absolute mark assigned to it; it is therefore evaluated via AND gates G1 to G15 to generate 15 different absolute pulses.

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Light Guides In General And Applications Therefor (AREA)
EP86116175A 1985-11-25 1986-11-21 Dispositif d'identification d'impulsions angulaires Expired EP0225528B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86116175T ATE38413T1 (de) 1985-11-25 1986-11-21 Anordnung zur identifikation von winkelimpulsen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853541624 DE3541624A1 (de) 1985-11-25 1985-11-25 Anordnung zur identifikation von winkelimpulsen
DE3541624 1985-11-25

Publications (2)

Publication Number Publication Date
EP0225528A1 true EP0225528A1 (fr) 1987-06-16
EP0225528B1 EP0225528B1 (fr) 1988-11-02

Family

ID=6286766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116175A Expired EP0225528B1 (fr) 1985-11-25 1986-11-21 Dispositif d'identification d'impulsions angulaires

Country Status (7)

Country Link
US (1) US4760827A (fr)
EP (1) EP0225528B1 (fr)
JP (1) JPS62142222A (fr)
AT (1) ATE38413T1 (fr)
CA (1) CA1262967A (fr)
DE (2) DE3541624A1 (fr)
ES (1) ES2004319B3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0490088A2 (fr) * 1990-12-07 1992-06-17 VOGT electronic AG Circuit pour la commande électronique d'un moteur à combustion interne
FR2738286A1 (fr) * 1995-09-06 1997-03-07 Peugeot Dispositif de detection du cycle de fonctionnement d'un moteur a combustion interne a plusieurs cylindres
DE10006467A1 (de) * 2000-02-14 2001-08-16 Bayerische Motoren Werke Ag Brennkraftmaschinen-Kurbelwelle mit einem Zahnrad
EP1770373A1 (fr) * 2005-09-30 2007-04-04 Bosch Rexroth Mechatronics GmbH Dispositif de mesure de la position absolue

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3634587A1 (de) * 1986-10-10 1988-04-14 Bosch Gmbh Robert Zuendsystem fuer verbrennungsmotoren
US5222022A (en) * 1986-12-01 1993-06-22 Woodward Governor Company Method and apparatus for iterated determinations of sensed speed and speed governing
JPH0174376U (fr) * 1987-11-09 1989-05-19
JPH0672567B2 (ja) * 1988-03-18 1994-09-14 三菱電機株式会社 内燃機関用角度検出装置
JPH01305163A (ja) * 1988-05-31 1989-12-08 Fuji Heavy Ind Ltd エンジンの点火時期制御装置
JPH0715279B2 (ja) * 1988-10-14 1995-02-22 三菱電機株式会社 点火時期制御装置
DE3900866C2 (de) * 1989-01-13 2001-11-22 Heimeier Gmbh Metall Theodor Anordnung zur Steuerung eines Heiz- oder Kühlmediums
US5549090A (en) * 1990-07-31 1996-08-27 Blount; David H. Electronic ignition system for combustion engines
WO1993009393A1 (fr) * 1991-11-06 1993-05-13 Orbital Engine Company (Australia) Pty. Limited Procede et appareil permettant de determiner la position d'un corps se deplaçant de maniere cyclique
US5287839A (en) * 1991-12-30 1994-02-22 Kokusan Denki Co., Ltd. Fuel injection equipment for internal combustion engine
US5264789A (en) * 1992-07-27 1993-11-23 Eaton Corporation Method of determining the direction of rotation of a member using a rotor having a predetermined pattern of exciter surfaces
GB2317705B (en) * 1996-09-30 2000-10-04 Cummins Engine Co Inc A control system,an internal combustion engine system,and a tone wheel
US5965806A (en) * 1997-09-30 1999-10-12 Cummins Engine Company, Inc. Engine crankshaft sensing system
US6131547A (en) * 1998-02-27 2000-10-17 Cummins Engine Company, Inc. Electronic engine speed and position apparatus for camshaft gear applications
US6404188B1 (en) * 1998-03-19 2002-06-11 Honeywell Inc Single geartooth sensor yielding multiple output pulse trains
JP3788687B2 (ja) * 1998-06-15 2006-06-21 三菱電機株式会社 内燃機関の気筒識別装置
DE19929291A1 (de) * 1999-06-25 2000-12-28 Volkswagen Ag Ottomotor mit halbsequentieller Kraftstoffeinspritzung
KR100337359B1 (ko) * 1999-12-15 2002-05-21 이계안 차량의 주행단 밀림 방지장치 및 그 제어방법
ES2358722T3 (es) * 2007-08-31 2011-05-13 Pepperl + Fuchs Gmbh Transductor inductivo de desplazamiento, dispositivo de codificación y procedimiento para determinar una posición de un primer objeto respecto a un segundo objeto.
DE102011078717A1 (de) * 2011-07-06 2013-01-10 Continental Teves Ag & Co. Ohg Einrichtung zur Messung von Winkel und Winkelgeschwindigkeit oder Weg und Geschwindigkeit
DE102013102371B4 (de) * 2013-03-11 2022-02-03 Danfoss Power Solutions Gmbh & Co. Ohg Signalgeber für eine Drehbewegungsmessanordnung
US11085394B2 (en) 2018-03-30 2021-08-10 Honda Motor Co., Ltd. Engine
US11131567B2 (en) 2019-02-08 2021-09-28 Honda Motor Co., Ltd. Systems and methods for error detection in crankshaft tooth encoding
US11959820B2 (en) 2021-03-17 2024-04-16 Honda Motor Co., Ltd. Pulser plate balancing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316796A1 (fr) * 1975-07-02 1977-01-28 Hartig Gunter Emetteur d'impulsions
FR2441829A1 (fr) * 1978-11-15 1980-06-13 Bosch Gmbh Robert Installation permettant d'obtenir un signal de sortie caracteristique de l'evolution du deplacement du vilebrequin d'un moteur a combustion interne a quatre temps et a plusieurs cylindres
US4284052A (en) * 1979-08-23 1981-08-18 The Bendix Corporation Sequential injector timing apparatus
EP0071885A2 (fr) * 1981-08-06 1983-02-16 Atlas Fahrzeugtechnik GmbH Roue dentée génératrice d'impulsions possédant une dent référencée

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5870052A (ja) * 1981-10-22 1983-04-26 Kokusan Denki Co Ltd 多気筒内燃機関用点火時期制御装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2316796A1 (fr) * 1975-07-02 1977-01-28 Hartig Gunter Emetteur d'impulsions
FR2441829A1 (fr) * 1978-11-15 1980-06-13 Bosch Gmbh Robert Installation permettant d'obtenir un signal de sortie caracteristique de l'evolution du deplacement du vilebrequin d'un moteur a combustion interne a quatre temps et a plusieurs cylindres
US4284052A (en) * 1979-08-23 1981-08-18 The Bendix Corporation Sequential injector timing apparatus
EP0071885A2 (fr) * 1981-08-06 1983-02-16 Atlas Fahrzeugtechnik GmbH Roue dentée génératrice d'impulsions possédant une dent référencée

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0490088A2 (fr) * 1990-12-07 1992-06-17 VOGT electronic AG Circuit pour la commande électronique d'un moteur à combustion interne
WO1992011452A2 (fr) * 1990-12-07 1992-07-09 Vogt Electronic Ag Circuit de commande electronique de machines a combustion interne
WO1992011452A3 (fr) * 1990-12-07 1992-08-06 Vogt Electronic Ag Circuit de commande electronique de machines a combustion interne
EP0490088A3 (en) * 1990-12-07 1992-09-02 Vogt Electronic Aktiengesellschaft Circuit for the electronic control of an internal combustion engine
FR2738286A1 (fr) * 1995-09-06 1997-03-07 Peugeot Dispositif de detection du cycle de fonctionnement d'un moteur a combustion interne a plusieurs cylindres
EP0761953A1 (fr) * 1995-09-06 1997-03-12 Automobiles Peugeot Dispositif de détection du cycle de fonctionnement d'un moteur à combustion interne à plusieurs cylindres
DE10006467A1 (de) * 2000-02-14 2001-08-16 Bayerische Motoren Werke Ag Brennkraftmaschinen-Kurbelwelle mit einem Zahnrad
EP1770373A1 (fr) * 2005-09-30 2007-04-04 Bosch Rexroth Mechatronics GmbH Dispositif de mesure de la position absolue

Also Published As

Publication number Publication date
US4760827A (en) 1988-08-02
ES2004319B3 (es) 1991-12-16
CA1262967A (fr) 1989-11-14
DE3661094D1 (en) 1988-12-08
ATE38413T1 (de) 1988-11-15
DE3541624A1 (de) 1987-05-27
EP0225528B1 (fr) 1988-11-02
JPS62142222A (ja) 1987-06-25

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