GB1359809A - Fuel injection systems - Google Patents

Fuel injection systems

Info

Publication number
GB1359809A
GB1359809A GB1131873A GB1131873A GB1359809A GB 1359809 A GB1359809 A GB 1359809A GB 1131873 A GB1131873 A GB 1131873A GB 1131873 A GB1131873 A GB 1131873A GB 1359809 A GB1359809 A GB 1359809A
Authority
GB
United Kingdom
Prior art keywords
switch
potential
point
pulses
lever
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
GB1131873A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1359809A publication Critical patent/GB1359809A/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
    • F02D41/30—Controlling fuel injection
    • F02D41/32—Controlling fuel injection of the low pressure type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/07—Automatic control systems according to one of the preceding groups in combination with control of the mechanism receiving the engine power

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)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

1359809 Controlling fuel injection electrically ROBERT BOSCH GmbH 8 March 1973 [9 March 1972] 11318/73 Heading G1N In an electronic fuel injection system for an I.C. engine 10 of a motor vehicle having an automatic transmission 60, the system being of the type providing injection valve opening pulses 19 in synchronism with crank-shaft rotation, the duration of the pulses 19 is temporarily increased when the transmission lever 61 is changed from its neutral or parking position to one of its drive positions. As shown, a monostable multi-vibrator 20 provides the pulses, their duration being determined by the intake air pressure and the potential at point S. A switch 64 is associated with the transmission 60 and is closed only in the neutral (N) or parking (P) position of lever 61. This switch is connected between the starter switch 69 and the starter relay 68 of the engine. Switch 65 is the ignition switch. A time switching stage 67 is connected to the junction of switches 64, 69 to determine the potential at point S. The potential at this point decreases to increase the opening pulse duration throughout the period the starting switch 69 is closed during starting. Furthermore, when the switch 64 is opened when the lever 61 is moved to one of its drive positions, R, 2, 3, 4) the time switching stage again decreases the potential of point S, the operation persisting for a period (for example from 1 to 30 seconds) determined by the discharge time of a capacitor 77.
GB1131873A 1972-03-09 1973-03-08 Fuel injection systems Expired GB1359809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722211336 DE2211336A1 (en) 1972-03-09 1972-03-09 FUEL INJECTION SYSTEM FOR A COMBUSTION ENGINE WITH AUTOMATIC TRANSMISSION

Publications (1)

Publication Number Publication Date
GB1359809A true GB1359809A (en) 1974-07-10

Family

ID=5838384

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1131873A Expired GB1359809A (en) 1972-03-09 1973-03-08 Fuel injection systems

Country Status (5)

Country Link
JP (1) JPS5058420A (en)
DE (1) DE2211336A1 (en)
FR (1) FR2163212A5 (en)
GB (1) GB1359809A (en)
IT (1) IT972946B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53147329U (en) * 1977-04-26 1978-11-20
JPS5877138A (en) * 1981-11-04 1983-05-10 Toyota Motor Corp Speed change control method of automatic speed changer

Also Published As

Publication number Publication date
FR2163212A5 (en) 1973-07-20
DE2211336A1 (en) 1973-09-13
JPS5058420A (en) 1975-05-21
IT972946B (en) 1974-05-31

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees