JPS55159183A - Digital control unit - Google Patents

Digital control unit

Info

Publication number
JPS55159183A
JPS55159183A JP6771479A JP6771479A JPS55159183A JP S55159183 A JPS55159183 A JP S55159183A JP 6771479 A JP6771479 A JP 6771479A JP 6771479 A JP6771479 A JP 6771479A JP S55159183 A JPS55159183 A JP S55159183A
Authority
JP
Japan
Prior art keywords
interruption
time
areas
constitution
increase
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
JP6771479A
Other languages
Japanese (ja)
Other versions
JPH0337153B2 (en
Inventor
Sadao Takase
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP6771479A priority Critical patent/JPS55159183A/en
Priority to DE19803020418 priority patent/DE3020418C2/en
Priority to GB8017954A priority patent/GB2051431B/en
Publication of JPS55159183A publication Critical patent/JPS55159183A/en
Publication of JPH0337153B2 publication Critical patent/JPH0337153B2/ja
Granted 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/263—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor the program execution being modifiable by physical parameters
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F1/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers
    • G04F1/005—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timers using electronic timing, e.g. counting means
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G15/00—Time-pieces comprising means to be operated at preselected times or after preselected time intervals
    • G04G15/006—Time-pieces comprising means to be operated at preselected times or after preselected time intervals for operating at a number of different times

Landscapes

  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electric Clocks (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
  • Control By Computers (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE: To eliminate the increase in any surplus interruption demand and make the constitution of the digital control unit which performs at least one operation repeatedly by performing the measurement of lapse time only through the operation in a microcomputer.
CONSTITUTION: When the clock pulses output by a clock pulse generator 6 becomes interruption demand, a CPU1 executs operation routine and sequentially advances stepwise the contents of the specified memory areas M1WMn in a memory 5 every time when there is the interruption demand, so that the interruption demand times given in every fixed time are stored in the areas M1WMn. Next, when the contents of the specific areas M1WMn are read in one operation routine, the lapse time may be known and whether the specified time is reached or not is detected by the comparison of the same with the specified set value. If the areas M1WMn of the required number are provided according to the timer operation by the system that these clocking operations are done in the microcomputer, the interruption processing time does not increase despite the increase in the interruption times and the need for any latch circuit and counter is eliminated, thus the constitution of the apparatus becomes simple.
COPYRIGHT: (C)1980,JPO&Japio
JP6771479A 1979-05-31 1979-05-31 Digital control unit Granted JPS55159183A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6771479A JPS55159183A (en) 1979-05-31 1979-05-31 Digital control unit
DE19803020418 DE3020418C2 (en) 1979-05-31 1980-05-29 Digital timer
GB8017954A GB2051431B (en) 1979-05-31 1980-06-02 Digital timer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6771479A JPS55159183A (en) 1979-05-31 1979-05-31 Digital control unit

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP4073640A Division JPH0731253B2 (en) 1992-03-30 1992-03-30 Digital controller
JP4073643A Division JPH0731254B2 (en) 1992-03-30 1992-03-30 Digital controller

Publications (2)

Publication Number Publication Date
JPS55159183A true JPS55159183A (en) 1980-12-11
JPH0337153B2 JPH0337153B2 (en) 1991-06-04

Family

ID=13352895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6771479A Granted JPS55159183A (en) 1979-05-31 1979-05-31 Digital control unit

Country Status (3)

Country Link
JP (1) JPS55159183A (en)
DE (1) DE3020418C2 (en)
GB (1) GB2051431B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62107303A (en) * 1985-11-06 1987-05-18 Japan Electronic Control Syst Co Ltd Electronic control device for automobile

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51120640A (en) * 1975-04-16 1976-10-22 Mitsubishi Electric Corp Time counting method
JPS5374068A (en) * 1976-12-13 1978-07-01 Fujitsu Ltd Time control system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2713483A1 (en) * 1977-03-26 1978-09-28 Ruediger Hannig Programmable memory providing pulse trains - generates repetitive switching signals using two pocket calculators acting as counters

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51120640A (en) * 1975-04-16 1976-10-22 Mitsubishi Electric Corp Time counting method
JPS5374068A (en) * 1976-12-13 1978-07-01 Fujitsu Ltd Time control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62107303A (en) * 1985-11-06 1987-05-18 Japan Electronic Control Syst Co Ltd Electronic control device for automobile

Also Published As

Publication number Publication date
GB2051431B (en) 1983-05-18
JPH0337153B2 (en) 1991-06-04
DE3020418C2 (en) 1983-01-05
DE3020418A1 (en) 1980-12-11
GB2051431A (en) 1981-01-14

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