GB1371763A - Pulse generator unit - Google Patents

Pulse generator unit

Info

Publication number
GB1371763A
GB1371763A GB434671A GB434671A GB1371763A GB 1371763 A GB1371763 A GB 1371763A GB 434671 A GB434671 A GB 434671A GB 434671 A GB434671 A GB 434671A GB 1371763 A GB1371763 A GB 1371763A
Authority
GB
United Kingdom
Prior art keywords
photo
cells
band
light
cell
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
GB434671A
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Joseph Lucas Industries 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 Industries Ltd, Joseph Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB434671A priority Critical patent/GB1371763A/en
Publication of GB1371763A publication Critical patent/GB1371763A/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
    • 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
    • F02P7/073—Optical pick-up devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors

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)
  • Testing Of Engines (AREA)

Abstract

1371763 Pulse generators JOSEPH LUCAS (INDUSTRIES) Ltd 14 Jan 1972 [10 Feb 1971] 4346/71 Heading G1A In a pulse generator unit suitable for controlling an internal combustion engine, an interrupter wheel 14 within a housing 10 is connected to a shaft 13 that may be rotated by the engine and has two axially spaced bands (15, 16), Fig. 3 (not shown) having alternate transparent and opaque areas the arrangement being such that rotation of the wheel 14 will interrupt light passing from sources 18 and 19 to photo-cells 21, 22 (all of which are attached to the housing 10) and light from a light source 20 passing to photo-cell 17 (both of which are attached to a stator 12 that is pivotable with respect to the housing). The photo-cells 17 and 19 both receive light that has passed through the same band (15) and the phase relationship between the trains of pulses produced by the two photo-cells depends upon the angular position of the stator (which may be connected to the throttle) relative to the housing. The photo-cell 18 receives light that has passed through the band 16. The number of opaque parts in the band 15 may be equal to the number of cylinders in the internal combustion engine, where as the band 16 may have a substantially greater number and the outputs of the three photo-cells may be connected to a grating circuit which is arranged to "gate" the output of the photo-cell 18 to an electronic counter, for controlling fuel injection, when an output is provided by the photo-cells 17 and 19 Figs. 4d and 4e (not shown). Other uses for the pulses produced by the generator are disclosed, concerning speed measurement, or providing a pre-set pulse for ignition signalling. A further photo-cell (not shown) may be used to provide a single pulse per revolution of the interrupter wheel 14 for signalling the start of each engine cycle, furthermore the band may be replaced by other light modulating means such as those using reflection or refraction.
GB434671A 1972-01-14 1972-01-14 Pulse generator unit Expired GB1371763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB434671A GB1371763A (en) 1972-01-14 1972-01-14 Pulse generator unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB434671A GB1371763A (en) 1972-01-14 1972-01-14 Pulse generator unit

Publications (1)

Publication Number Publication Date
GB1371763A true GB1371763A (en) 1974-10-23

Family

ID=9775456

Family Applications (1)

Application Number Title Priority Date Filing Date
GB434671A Expired GB1371763A (en) 1972-01-14 1972-01-14 Pulse generator unit

Country Status (1)

Country Link
GB (1) GB1371763A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5453722A (en) * 1977-09-16 1979-04-27 Lucas Industries Ltd Internal combustion engine controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5453722A (en) * 1977-09-16 1979-04-27 Lucas Industries Ltd Internal combustion engine controller
JPS5855353B2 (en) * 1977-09-16 1983-12-09 ル−カス・インダストリ−ズ・リミテツド Internal combustion engine control device

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years