GB1514734A - Angular position transducers for use in engine timing controls - Google Patents

Angular position transducers for use in engine timing controls

Info

Publication number
GB1514734A
GB1514734A GB22535/74A GB2253574A GB1514734A GB 1514734 A GB1514734 A GB 1514734A GB 22535/74 A GB22535/74 A GB 22535/74A GB 2253574 A GB2253574 A GB 2253574A GB 1514734 A GB1514734 A GB 1514734A
Authority
GB
United Kingdom
Prior art keywords
output
generator
pulses
comparator
producing
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.)
Expired
Application number
GB22535/74A
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.)
Lucas Electrical Co Ltd
Original Assignee
Lucas Electrical Co Ltd
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 Lucas Electrical Co Ltd filed Critical Lucas Electrical Co Ltd
Priority to GB22535/74A priority Critical patent/GB1514734A/en
Priority to GB4867/78A priority patent/GB1514735A/en
Priority to IT7549689A priority patent/IT1035797B/en
Priority to FR7516546A priority patent/FR2289068A1/en
Priority to DE19752522430 priority patent/DE2522430A1/en
Priority to ZA753285A priority patent/ZA753285B/en
Priority to JP50060896A priority patent/JPS6039872B2/en
Priority to ES437822A priority patent/ES437822A1/en
Priority to AR258909A priority patent/AR215841A1/en
Priority to AU81317/75A priority patent/AU504793B2/en
Priority to IN428/DEL/78A priority patent/IN148505B/en
Publication of GB1514734A publication Critical patent/GB1514734A/en
Priority to IN783/DEL/80A priority patent/IN150886B/en
Expired 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
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • 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
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/15—Digital data processing
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/242—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by carrying output of an electrodynamic device, e.g. a tachodynamo
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

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)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

1514734 Measuring angular displacement LUCAS ELECTRICAL Ltd 16 May 1975 [21 May 1974 4 June 1974 20 Aug 1974 8 Oct 1974(2)] 22535/74 25274/74 36548/74 43481/74 and 43482/74 Heading G1N An apparatus for indicating successive positions of a rotating member, e.g. for use in an engine timing control system or an engine fuel injection system, comprises an electromagnetic generator 9 connected to be driven by the rotating member and producing, in use, a beam of primary and secondary pulses, there being at least one secondary pulse between each pair of successive primary pulses and the secondary pulses being of magnitude different from that of the primary pulses. Recognition means 23 are connected to the generator 9 for distinguishing the two types of pulses and include integrating means for generating a signal corresponding to the time integral of at least part of the voltage waveform of each pulse. A control is connected to the recognition means for providing output signals indicating successive positions of the rotating member. The control comprises a two-way switch 24 connected to a fixed frequency clockpulse generator 25 and having outputs each connected to a respective frequency divider 26, 27. The divider 26 has its output connected to a counter 28 which in turn feeds a memory matrix device 30. The device 30 also receives a digital input from an encoder 31 which is connected to a manifold vacuum transducer. The other divider 27 is programmable and feeds a counter 29 which in turn feeds a digital comparator 33. Inputs to the comparator 33 are also taken from the memory matrix device 30. The comparator 33 is connected to a spark generator 34. The recognition means includes pulse height sensitive means connected to the output of the integrating means and arranged to recognise the primary pulses. In turn the pulse height sensitive means includes an active peak detector circuit having a capacitor which is charged periodically to a voltage representing the peak pulse height of the output of the integrating means and the comparator produces an output signal when the output of the integrating means exceeds a fixed proportion of the voltage on the generator. A zero-crossing detector is connected to the output of the generator and produces an output whenever the output of the generator is of one polarity and a signal combining circuit having inputs connected to the output of the zero-crossing detector and producing an output in each interval between the recognition means producing an output and the zero-crossing detector producing an output. Various embodiments of the circuits are disclosed. The generator, Figs. 1, 2, comprises a stator plate 11 and a motor plate 13 each having identical unequally spaced poles 15, 14 respectively. Windings 22 are mounted beneath the rotor 13. The stator plate 11 is mounted on an annular ferromagnetic base-plate 16 by screws which pass through the plate 11 as well as an annular ferromagnetic packing member 17, an annular magnet 18 and an annular ferromagnetic winding support member 18.
GB22535/74A 1974-05-21 1974-05-21 Angular position transducers for use in engine timing controls Expired GB1514734A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
GB22535/74A GB1514734A (en) 1974-05-21 1974-05-21 Angular position transducers for use in engine timing controls
GB4867/78A GB1514735A (en) 1974-05-21 1974-05-21 Angular position transducer for use in engine timing controls
IT7549689A IT1035797B (en) 1974-05-21 1975-05-20 ANGULAR POSITION SIGNAL GENERATOR FOR ENGINE START-UP EQUIPMENT
ZA753285A ZA753285B (en) 1974-05-21 1975-05-21 Angular position transducers for use in engine timing controls
DE19752522430 DE2522430A1 (en) 1974-05-21 1975-05-21 ANGLE POSITION SIGNAL GENERATOR FOR USE IN THE TIMING CONTROL OF MACHINERY
FR7516546A FR2289068A1 (en) 1974-05-21 1975-05-21 Timing angle signal transmitter for ignition or fuel injection - has distributor shaft to turn rotor with irregular spaced magnets
JP50060896A JPS6039872B2 (en) 1974-05-21 1975-05-21 Angular position signal generator for ignition timing control device of internal heat engine
ES437822A ES437822A1 (en) 1974-05-21 1975-05-21 Generator of angular position signals to be used in a set-up control system for engines. (Machine-translation by Google Translate, not legally binding)
AR258909A AR215841A1 (en) 1974-05-21 1975-05-21 ANGULAR POSITION SIGNAL GENERATOR
AU81317/75A AU504793B2 (en) 1974-05-21 1976-11-25 Angular position transducers for use in engine controls
IN428/DEL/78A IN148505B (en) 1974-05-21 1978-06-08
IN783/DEL/80A IN150886B (en) 1974-05-21 1980-10-28

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB22535/74A GB1514734A (en) 1974-05-21 1974-05-21 Angular position transducers for use in engine timing controls
GB4867/78A GB1514735A (en) 1974-05-21 1974-05-21 Angular position transducer for use in engine timing controls

Publications (1)

Publication Number Publication Date
GB1514734A true GB1514734A (en) 1978-06-21

Family

ID=62527939

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4867/78A Expired GB1514735A (en) 1974-05-21 1974-05-21 Angular position transducer for use in engine timing controls
GB22535/74A Expired GB1514734A (en) 1974-05-21 1974-05-21 Angular position transducers for use in engine timing controls

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB4867/78A Expired GB1514735A (en) 1974-05-21 1974-05-21 Angular position transducer for use in engine timing controls

Country Status (3)

Country Link
GB (2) GB1514735A (en)
IN (1) IN150886B (en)
ZA (1) ZA753285B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046006B1 (en) * 1980-07-19 1986-04-16 LUCAS INDUSTRIES public limited company Electromagnetic transducer
DE3266085D1 (en) * 1981-02-18 1985-10-17 Lucas Ind Plc Position transducer
EP0066975B2 (en) * 1981-06-05 1989-12-13 LUCAS INDUSTRIES public limited company Internal combustion engine function control system
DE3619463A1 (en) * 1986-06-10 1987-12-17 Bosch Gmbh Robert INDUCTION SENSOR FOR IGNITION SYSTEMS OF INTERNAL COMBUSTION ENGINES

Also Published As

Publication number Publication date
IN150886B (en) 1983-01-08
ZA753285B (en) 1976-11-24
GB1514735A (en) 1978-06-21

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940516