JPS55141618A - Basic pulse operating system of hot-wire type flowmeter - Google Patents
Basic pulse operating system of hot-wire type flowmeterInfo
- Publication number
- JPS55141618A JPS55141618A JP4995979A JP4995979A JPS55141618A JP S55141618 A JPS55141618 A JP S55141618A JP 4995979 A JP4995979 A JP 4995979A JP 4995979 A JP4995979 A JP 4995979A JP S55141618 A JPS55141618 A JP S55141618A
- Authority
- JP
- Japan
- Prior art keywords
- suction air
- hot
- air amount
- wire type
- engine
- 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.)
- Pending
Links
Abstract
PURPOSE: To make possible fuel injection controlling which is unaffected by the pulsation of suction air amount by sampling the output voltage of the hot-wire type flowmeter and deriving fuel pulses from the mean suction air amount added and averaged at every period for one revolution of the engine.
CONSTITUTION: The output voltage of the hot-wire type flowmeter 1 which measures the instantaneous velocity of flow of the suction air to the engine is sampled at every periodic pulse of a timing pulse generator 6 by an A/D converter 2 and is digitally converted. It is then input to a computer 7 which in turn calculates suction air amount Qin. The period τ for one revolution of the engine is detected by a revolution sensor 4 and the added value QAD and addition times NAD of the suction air amount Qin over the period τ are counted by the computer 7 and the mean suction air Q'=QAD/NAD is computed. The mean suction air amount Q' is divided by the number of revolutions N of the engine to obtain the pulse width TP of the fuel injection pulses, i.e., basic pulses and if a fuel injection solenoid valve 9 is controlled by this, the stable fuel injection controlling may be accomplished even if the output of the hot-wire type flowmeter pulsates.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4995979A JPS55141618A (en) | 1979-04-23 | 1979-04-23 | Basic pulse operating system of hot-wire type flowmeter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4995979A JPS55141618A (en) | 1979-04-23 | 1979-04-23 | Basic pulse operating system of hot-wire type flowmeter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55141618A true JPS55141618A (en) | 1980-11-05 |
Family
ID=12845561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4995979A Pending JPS55141618A (en) | 1979-04-23 | 1979-04-23 | Basic pulse operating system of hot-wire type flowmeter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55141618A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58105028A (en) * | 1981-12-17 | 1983-06-22 | Meidensha Electric Mfg Co Ltd | Measuring device for discharge pressure of metering pump |
JPS5910745A (en) * | 1982-07-08 | 1984-01-20 | Mitsubishi Motors Corp | Controlling method of engine |
JPS59105040U (en) * | 1982-12-29 | 1984-07-14 | 日本電子機器株式会社 | Electronically controlled fuel injection system for internal combustion engines |
JPS59226239A (en) * | 1983-06-06 | 1984-12-19 | Nippon Denso Co Ltd | Electronic fuel injection controlling apparatus for internal-combustion engine |
JPS601521A (en) * | 1983-06-17 | 1985-01-07 | Toyota Motor Corp | Computing method of amount of intake air |
JPS6069248A (en) * | 1983-09-27 | 1985-04-19 | Suzuki Motor Co Ltd | Data input circuit for fuel supply controlling apparatus |
JPS60166729A (en) * | 1984-02-10 | 1985-08-30 | Japan Electronic Control Syst Co Ltd | Suction air flow enumerator in electronically controlled fuel injection device for internal- combustion engine |
JPS61201856A (en) * | 1985-03-06 | 1986-09-06 | Hitachi Ltd | Fuel feed amount control device |
US4627840A (en) * | 1985-01-28 | 1986-12-09 | Cordis Corporation | Flow monitoring device |
US4866620A (en) * | 1986-08-29 | 1989-09-12 | Nippondenso Co., Ltd. | Control system and method for an internal combustion engine, obtaining air pressure after bottom dead center |
US20100268437A1 (en) * | 2007-12-28 | 2010-10-21 | Stefan Bauer | Method for detecting a periodically pulsing operating parameter |
-
1979
- 1979-04-23 JP JP4995979A patent/JPS55141618A/en active Pending
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58105028A (en) * | 1981-12-17 | 1983-06-22 | Meidensha Electric Mfg Co Ltd | Measuring device for discharge pressure of metering pump |
JPH0461177B2 (en) * | 1982-07-08 | 1992-09-30 | Mitsubishi Motors Corp | |
JPS5910745A (en) * | 1982-07-08 | 1984-01-20 | Mitsubishi Motors Corp | Controlling method of engine |
JPS59105040U (en) * | 1982-12-29 | 1984-07-14 | 日本電子機器株式会社 | Electronically controlled fuel injection system for internal combustion engines |
JPS59226239A (en) * | 1983-06-06 | 1984-12-19 | Nippon Denso Co Ltd | Electronic fuel injection controlling apparatus for internal-combustion engine |
JPH0467579B2 (en) * | 1983-06-06 | 1992-10-28 | Nippon Denso Co | |
JPS601521A (en) * | 1983-06-17 | 1985-01-07 | Toyota Motor Corp | Computing method of amount of intake air |
JPS6069248A (en) * | 1983-09-27 | 1985-04-19 | Suzuki Motor Co Ltd | Data input circuit for fuel supply controlling apparatus |
JPS60166729A (en) * | 1984-02-10 | 1985-08-30 | Japan Electronic Control Syst Co Ltd | Suction air flow enumerator in electronically controlled fuel injection device for internal- combustion engine |
US4627840A (en) * | 1985-01-28 | 1986-12-09 | Cordis Corporation | Flow monitoring device |
JPS61201856A (en) * | 1985-03-06 | 1986-09-06 | Hitachi Ltd | Fuel feed amount control device |
US4866620A (en) * | 1986-08-29 | 1989-09-12 | Nippondenso Co., Ltd. | Control system and method for an internal combustion engine, obtaining air pressure after bottom dead center |
US20100268437A1 (en) * | 2007-12-28 | 2010-10-21 | Stefan Bauer | Method for detecting a periodically pulsing operating parameter |
US8463526B2 (en) * | 2007-12-28 | 2013-06-11 | Robert Bosch Gmbh | Method for detecting a periodically pulsing operating parameter |
DE102007063102B4 (en) | 2007-12-28 | 2022-02-10 | Robert Bosch Gmbh | Method for detecting a periodically pulsating operating parameter |
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