JPS55104719A - Method for measuring amount of flowing air in internal- combustion engine - Google Patents
Method for measuring amount of flowing air in internal- combustion engineInfo
- Publication number
- JPS55104719A JPS55104719A JP1204879A JP1204879A JPS55104719A JP S55104719 A JPS55104719 A JP S55104719A JP 1204879 A JP1204879 A JP 1204879A JP 1204879 A JP1204879 A JP 1204879A JP S55104719 A JPS55104719 A JP S55104719A
- Authority
- JP
- Japan
- Prior art keywords
- input
- signal
- resistors
- output
- internal
- 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
Landscapes
- Measuring Volume Flow (AREA)
Abstract
PURPOSE: To simplify the processing of a measured signal by a method wherein a non-linear output is input to a circuit which has characteristics opposite of the non- linear output in shape, and a signal is taken out of the output of the circuit, the signal being proportionate to the flowing amount.
CONSTITUTION: A hot sensor output is input from a voltage input terminal 10 and input voltage is divided by resistors 14, 15, 16 and the resistors 14, 15 and resistors 15, 16 are connected to the negative-phase input of a comparator 17 and the positive-phase input of a comparator 18, respectively. The outputs of the comparators 17, 18 are input to the setting-and-resetting terminals S, R of setting-and-resetting FF19, and their outputs are connected to an output terminal 22 and the base of a transistor 21. Though a capacitor 13 repeats charging and discharging, the signal of the flowing amount converted to a linear form is read as a signal of the sucking amount by selecting the values of resistors 11, 12, 14, 15, 16 and the capacitor 13 so that the frequency is proportionate to the flowing amount.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1204879A JPS55104719A (en) | 1979-02-05 | 1979-02-05 | Method for measuring amount of flowing air in internal- combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1204879A JPS55104719A (en) | 1979-02-05 | 1979-02-05 | Method for measuring amount of flowing air in internal- combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55104719A true JPS55104719A (en) | 1980-08-11 |
Family
ID=11794708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1204879A Pending JPS55104719A (en) | 1979-02-05 | 1979-02-05 | Method for measuring amount of flowing air in internal- combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55104719A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7140246B2 (en) | 2003-01-14 | 2006-11-28 | Hitachi, Ltd. | Frequency output type hot-wire flow meter |
-
1979
- 1979-02-05 JP JP1204879A patent/JPS55104719A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7140246B2 (en) | 2003-01-14 | 2006-11-28 | Hitachi, Ltd. | Frequency output type hot-wire flow meter |
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