JPH01166741U - - Google Patents
Info
- Publication number
- JPH01166741U JPH01166741U JP6161688U JP6161688U JPH01166741U JP H01166741 U JPH01166741 U JP H01166741U JP 6161688 U JP6161688 U JP 6161688U JP 6161688 U JP6161688 U JP 6161688U JP H01166741 U JPH01166741 U JP H01166741U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- detection means
- output signal
- phase
- 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
- 239000000446 fuel Substances 0.000 claims description 17
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の構成図、第２図は内燃機関の
全体図、第３図は空燃比、Ｏ２センサの出力電圧
Ｖ、出力電圧Ｖの時間ｔによる微分値ｄｖｄｔ、
、出力電圧Ｖの時間ｔによる２次微分値ｄ２ｖｄ
ｔ２及びフイードバツク空燃比補正係数ＦＡＦの
それぞれの変化を示す線図、第４図は燃料噴射時
間を算出するためのフローチヤート、第５図は従
来の空燃比、Ｏ２センサの出力電圧及びフイード
バツク空燃比補正係数ＦＡＦのそれぞれの変化を
示す線図である。
６……エアフローメータ、１４……インジエク
タ、１８……Ｏ２センサ、２２……クランク角セ
ンサ、３０……電子制御ユニツト。
Figure 1 is a configuration diagram of the present invention, Figure 2 is an overall diagram of the internal combustion engine, Figure 3 is the air-fuel ratio, the output voltage V of the O 2 sensor, the differential value dvdt of the output voltage V with respect to time t,
, second-order differential value d 2 vd of output voltage V with respect to time t
t 2 and the feedback air-fuel ratio correction coefficient FAF, FIG. 4 is a flowchart for calculating the fuel injection time, and FIG. 5 shows the conventional air-fuel ratio, O 2 sensor output voltage, and feedback. 5 is a diagram showing each change in the air-fuel ratio correction coefficient FAF. FIG. 6...Air flow meter, 14...Injector, 18... O2 sensor, 22...Crank angle sensor, 30...Electronic control unit.
Claims (1)
該空燃比検出手段の出力信号に基づき空燃比を制
御するようにした内燃機関の空燃比制御装置にお
いて、前記空燃比検出手段の出力信号の変化が空
燃比の変化に追従するように前記空燃比検出手段
の出力信号の位相を進ませる位相進相手段と、該
位相進相手段により位相が進まされた前記空燃比
検出手段の出力信号に基づいて空燃比を制御する
空燃比制御手段とを具備した内燃機関の空燃比制
御装置。 In an air-fuel ratio control device for an internal combustion engine, the air-fuel ratio is detected by an air-fuel ratio detection means, and the air-fuel ratio is controlled based on the output signal of the air-fuel ratio detection means, wherein a change in the output signal of the air-fuel ratio detection means is provided. a phase advance means for advancing the phase of the output signal of the air-fuel ratio detection means so as to follow changes in the air-fuel ratio; and a phase advance means for advancing the phase of the output signal of the air-fuel ratio detection means so that An air-fuel ratio control device for an internal combustion engine, comprising an air-fuel ratio control means for controlling an air-fuel ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6161688U JPH01166741U (en) | 1988-05-12 | 1988-05-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6161688U JPH01166741U (en) | 1988-05-12 | 1988-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01166741U true JPH01166741U (en) | 1989-11-22 |
Family
ID=31287274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6161688U Pending JPH01166741U (en) | 1988-05-12 | 1988-05-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01166741U (en) |
-
1988
- 1988-05-12 JP JP6161688U patent/JPH01166741U/ja active Pending