JPS55118608A - Proportional solenoid driving apparatus - Google Patents

Proportional solenoid driving apparatus

Info

Publication number
JPS55118608A
JPS55118608A JP2634479A JP2634479A JPS55118608A JP S55118608 A JPS55118608 A JP S55118608A JP 2634479 A JP2634479 A JP 2634479A JP 2634479 A JP2634479 A JP 2634479A JP S55118608 A JPS55118608 A JP S55118608A
Authority
JP
Japan
Prior art keywords
current
proportional solenoid
circuit
stepped
stepped wave
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
JP2634479A
Other languages
Japanese (ja)
Other versions
JPS6158844B2 (en
Inventor
Hisashi Kawai
Kazuhiro Sakurai
Muneaki Matsumoto
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.)
Toyota Motor Corp
Soken Inc
Original Assignee
Nippon Soken Inc
Toyota Motor Corp
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 Nippon Soken Inc, Toyota Motor Corp filed Critical Nippon Soken Inc
Priority to JP2634479A priority Critical patent/JPS55118608A/en
Priority to US06/123,818 priority patent/US4345737A/en
Publication of JPS55118608A publication Critical patent/JPS55118608A/en
Publication of JPS6158844B2 publication Critical patent/JPS6158844B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F01N3/222—Control of additional air supply only, e.g. using by-passes or variable air pump drives using electric valves only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F01N3/227—Control of additional air supply only, e.g. using by-passes or variable air pump drives using pneumatically operated valves, e.g. membrane valves
    • 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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0047—Controlling exhaust gas recirculation [EGR]
    • F02D41/0077—Control of the EGR valve or actuator, e.g. duty cycle, closed loop control of position

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Feedback Control In General (AREA)
  • Control Of Position Or Direction (AREA)
  • Flow Control (AREA)

Abstract

PURPOSE:To improve the starting movement of the sliding portion and to produce a smooth operation as well by computing controlled variable of every clock prescribed, by generating a stepped wave-form voltage corresponding to the computed value, and by applying the corresponding current to the proportional solenoid. CONSTITUTION:An air-fuel ratio detector turns out power when the air-fuel ratio of an exhaust system is smaller than the prescribed ratio, which comes out from a discrimination current. Driving circuit 17 is consisted of a stepped wave generating circuit 18 and a current amplification circuit 19, and while the discrimination circuit's output is ''1'', upcounted 174 at every clock signal, and the stepped wave-form current corresponding to the computed value is generated at ludder network 181. This current is amplified and applied to proportional solenoid 14. As above-mentioned, the current which flows in the coil of proportional solenoid 14 can be enlarged to stepped-form, so that starting movement is improved and it is operated smoothly, in spite of the fact that there exists some friction between spool and shaft.
JP2634479A 1979-03-06 1979-03-06 Proportional solenoid driving apparatus Granted JPS55118608A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2634479A JPS55118608A (en) 1979-03-06 1979-03-06 Proportional solenoid driving apparatus
US06/123,818 US4345737A (en) 1979-03-06 1980-02-22 Linear solenoid valve actuation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2634479A JPS55118608A (en) 1979-03-06 1979-03-06 Proportional solenoid driving apparatus

Publications (2)

Publication Number Publication Date
JPS55118608A true JPS55118608A (en) 1980-09-11
JPS6158844B2 JPS6158844B2 (en) 1986-12-13

Family

ID=12190819

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2634479A Granted JPS55118608A (en) 1979-03-06 1979-03-06 Proportional solenoid driving apparatus

Country Status (1)

Country Link
JP (1) JPS55118608A (en)

Also Published As

Publication number Publication date
JPS6158844B2 (en) 1986-12-13

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