GB2000334A - Control of i.c. engines - Google Patents

Control of i.c. engines

Info

Publication number
GB2000334A
GB2000334A GB7826842A GB7826842A GB2000334A GB 2000334 A GB2000334 A GB 2000334A GB 7826842 A GB7826842 A GB 7826842A GB 7826842 A GB7826842 A GB 7826842A GB 2000334 A GB2000334 A GB 2000334A
Authority
GB
United Kingdom
Prior art keywords
cycles
engine
running
detector
exhaust gas
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.)
Withdrawn
Application number
GB7826842A
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.)
Ricardo PLC
Original Assignee
Ricardo and Co Engineers 1927 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 Ricardo and Co Engineers 1927 Ltd filed Critical Ricardo and Co Engineers 1927 Ltd
Publication of GB2000334A publication Critical patent/GB2000334A/en
Withdrawn legal-status Critical Current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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1497—With detection of the mechanical response of the engine
    • F02D41/1498—With detection of the mechanical response of the engine measuring engine roughness
    • 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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • 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
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/1015—Engines misfires
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/021—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using an ionic current sensor

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

A method and apparatus for controlling the running of a spark-ignited I.C. engine (10) under conditions of fuel input less than stoichiometric, to improve the efficiency and stability of running under these conditions, utilises an ionisation detector (16) positioned in the engine exhaust gas duct (14) to detect those firing cycles with "late burn" of the combustible mixture during the firing stroke. The detector senses the increased ionisation of the exhaust gas flow caused by such "late burn" cycles, and produces unusually large voltage spikes (15) in its output signal corresponding to the occurrence of these "late burn" cycles. A control circuit (19) progressively weakens the combustible mixture in steps during running of the engine (10) until one or more such unusually large voltage spikes (25) occurs in the detector output, in response to which the control circuit (19) automatically produces a feedback signal which enriches the mixture to a higher value. <IMAGE>
GB7826842A 1977-05-25 1978-06-13 Control of i.c. engines Withdrawn GB2000334A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2208277 1977-05-25

Publications (1)

Publication Number Publication Date
GB2000334A true GB2000334A (en) 1979-01-04

Family

ID=10173643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7826842A Withdrawn GB2000334A (en) 1977-05-25 1978-06-13 Control of i.c. engines

Country Status (7)

Country Link
JP (1) JPS5439722A (en)
DE (1) DE2822776A1 (en)
ES (1) ES470175A1 (en)
FR (1) FR2392237A1 (en)
GB (1) GB2000334A (en)
IT (1) IT7849529A0 (en)
SE (1) SE7806027L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2395575A (en) * 2002-11-01 2004-05-26 Visteon Global Tech Inc Optimal wide open throttle air-fuel ratio control
FR2895024A1 (en) * 2005-12-20 2007-06-22 Renault Sas Motor vehicle`s engine controlling method, involves determining loss and failure of combustion in combustion chamber of engine by comparing running average value of preset variable of engine with preset threshold value

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944834A1 (en) * 1979-11-07 1981-05-27 Robert Bosch Gmbh, 7000 Stuttgart METHOD FOR REGULATING THE LAMBDA AIR NUMBER IN A SELF-IGNITION COMBUSTION ENGINE
US8079773B2 (en) * 2005-10-18 2011-12-20 General Electric Company Methods and apparatus for assembling composite structures

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2395575A (en) * 2002-11-01 2004-05-26 Visteon Global Tech Inc Optimal wide open throttle air-fuel ratio control
GB2395575B (en) * 2002-11-01 2005-05-11 Visteon Global Tech Inc Optimal wide open throttle air-fuel ratio control
US7137382B2 (en) 2002-11-01 2006-11-21 Visteon Global Technologies, Inc. Optimal wide open throttle air/fuel ratio control
FR2895024A1 (en) * 2005-12-20 2007-06-22 Renault Sas Motor vehicle`s engine controlling method, involves determining loss and failure of combustion in combustion chamber of engine by comparing running average value of preset variable of engine with preset threshold value
WO2007074271A1 (en) * 2005-12-20 2007-07-05 Renault S.A.S. Engine control method for improving an engine combustion diagnosis

Also Published As

Publication number Publication date
SE7806027L (en) 1978-11-26
IT7849529A0 (en) 1978-05-24
FR2392237A1 (en) 1978-12-22
ES470175A1 (en) 1979-02-01
DE2822776A1 (en) 1978-11-30
JPS5439722A (en) 1979-03-27

Similar Documents

Publication Publication Date Title
JPS5420203A (en) Combustion control equipment of engine
SE7904006L (en) CONTROL SYSTEM FOR COMBUSTION ENGINES
JPS5264539A (en) Feedback air fuel ratio type mixture controller
GB1501054A (en) Control of an internal combustion engine
GB2000334A (en) Control of i.c. engines
JPS521209A (en) Multi-points ignition engine
GB2011051A (en) Combustion process with reduced nitrogen oxides exhaust.
JPS538427A (en) Air-to-fuel ratio feed-back control means for internal combustion engine
JPS5430304A (en) Electronic control internal combustion engine
JPS52122930A (en) Combustion furnace
JPS51144082A (en) Method and apparatus of burning low- calorie gases
JPS51146638A (en) Air-fuel ratio recycling type fuel controlling system
JPS521233A (en) Exhaust gas recirculation device control system
JPS52132223A (en) Mixed gas controlling apparatus
JPS55110725A (en) After burning control for direct flame-heating type non-oxidative furnace
JPS52110306A (en) Combustion chamber design for dual-ignition engine
JPS54128833A (en) Combustion control method for combustion furnace
KR880004207A (en) Air-fuel ratio control device of internal combustion engine
JPH0261410A (en) Secondary combustion device
JPS53117106A (en) Jet controlling combustion engine for an automobile
JPS5246529A (en) Burner wih reduced nox exhaust
JPS5625617A (en) Combustion control device for reducing nox
JPS557958A (en) Ignition system for internal combustion engine
JPS53131310A (en) Misfire detecting method for an internal combustion engine
JPS5447932A (en) Ignition device for rotary piston engine

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)