JPH0217625U - - Google Patents
Info
- Publication number
- JPH0217625U JPH0217625U JP9674288U JP9674288U JPH0217625U JP H0217625 U JPH0217625 U JP H0217625U JP 9674288 U JP9674288 U JP 9674288U JP 9674288 U JP9674288 U JP 9674288U JP H0217625 U JPH0217625 U JP H0217625U
- Authority
- JP
- Japan
- Prior art keywords
- hot wire
- throttle valve
- air amount
- intake air
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims 3
- 230000002401 inhibitory effect Effects 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Description
第１図は本考案に係るホツトワイヤ式吸入空気
量検出装置の一例を、それが適用されたエンジン
とともに示す概略構成図、第２図は第１図に示さ
れるホツトワイヤ式の吸入空気量センサの等価回
路図、第３図は第１図に示される例のコントロー
ルユニツトにマイクロコンピユータが用いられた
場合における、斯かるマイクロコンピユータが実
行するプログラムの一例を示すフローチヤートで
ある。
図中、１０はエンジン本体、２０は吸気通路、
２９はスロツトル弁、３０は吸入空気量センサ、
４１はホツトワイヤ、６１はスロツトル開度セン
サ、６３は回転数センサ、６４は水温センサ、６
５はイグニツシヨンスイツチ、１００はコントロ
ールユニツトである。
Figure 1 is a schematic configuration diagram showing an example of the hot wire type intake air amount detection device according to the present invention, together with an engine to which it is applied, and Figure 2 is an equivalent diagram of the hot wire type intake air amount sensor shown in Figure 1. The circuit diagram in FIG. 3 is a flowchart showing an example of a program executed by a microcomputer when the microcomputer is used in the control unit shown in FIG. In the figure, 10 is the engine body, 20 is the intake passage,
29 is a throttle valve, 30 is an intake air amount sensor,
41 is a hot wire, 61 is a throttle opening sensor, 63 is a rotation speed sensor, 64 is a water temperature sensor, 6
5 is an ignition switch, and 100 is a control unit.
Claims (1)
上流側部分に配置されたホツトワイヤを有し、該
ホツトワイヤの抵抗値に応じた検出出力を発生す
る吸入空気量検出部と、 上記エンジンが所定の条件を満たす状態にある
とき、上記ホツトワイヤにおける付着物を燃焼除
去すべく、上記ホツトワイヤに発熱用電流を供給
する付着物燃焼手段と、 上記スロツトル弁が開状態にあることを検出す
る検出手段と、 上記エンジンが上記所定の条件を満たす状態に
あるもとで、上記検出手段により上記スロツトル
弁が開状態にあることが検出されるとき、上記付
着物燃焼手段による上記ホツトワイヤに対する発
熱用電流の供給を禁止する付着物燃焼禁止手段と
、を具備して構成されるホツトワイヤ式吸入空気
量検出装置。[Scope of Claim for Utility Model Registration] An intake air amount detector having a hot wire disposed upstream of a throttle valve in an intake passage of an engine and generating a detection output according to the resistance value of the hot wire; when the hot wire satisfies a predetermined condition, a deposit combustion means supplies a heating current to the hot wire in order to burn and remove deposits on the hot wire; and a detector for detecting that the throttle valve is in an open state. means, when the detecting means detects that the throttle valve is in the open state while the engine satisfies the predetermined conditions, the deposit combustion means generates a heat generating current to the hot wire; A hot wire type intake air amount detection device comprising: a deposit combustion inhibiting means for inhibiting the supply of air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9674288U JPH0217625U (en) | 1988-07-21 | 1988-07-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9674288U JPH0217625U (en) | 1988-07-21 | 1988-07-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0217625U true JPH0217625U (en) | 1990-02-05 |
Family
ID=31321827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9674288U Pending JPH0217625U (en) | 1988-07-21 | 1988-07-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0217625U (en) |
-
1988
- 1988-07-21 JP JP9674288U patent/JPH0217625U/ja active Pending
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