JPH0442977U - - Google Patents
Info
- Publication number
- JPH0442977U JPH0442977U JP8485890U JP8485890U JPH0442977U JP H0442977 U JPH0442977 U JP H0442977U JP 8485890 U JP8485890 U JP 8485890U JP 8485890 U JP8485890 U JP 8485890U JP H0442977 U JPH0442977 U JP H0442977U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- solenoid valve
- signal
- drive
- 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
Links
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Magnetically Actuated Valves (AREA)
Description
第１図は本考案実施例の構成を示すブロツク図
。第２図は本考案実施例における具体例を示す回
路図。第３図は本考案実施例に係る駆動系の構成
を示す図。
１……コンピユータ装置、２……２ＷＤ・４Ｗ
Ｄ切り換え電磁弁、３……Ｌ・Ｈ切り換え電磁弁
、４……２ＷＤ・４ＷＤ切り換え空気シリンダ、
５……Ｌ・Ｈ切り換え空気シリンダ、１１……制
御回路、１２，１７……信号端子、１３……出力
回路、１４……レベル変換回路、１４ａ……ゼナ
ーダイオード、１５……比較回路、１６……リレ
ー回路。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a circuit diagram showing a specific example of the embodiment of the present invention. FIG. 3 is a diagram showing the configuration of a drive system according to an embodiment of the present invention. 1... Computer device, 2... 2WD/4W
D switching solenoid valve, 3...L/H switching solenoid valve, 4...2WD/4WD switching air cylinder,
5... L/H switching air cylinder, 11... Control circuit, 12, 17... Signal terminal, 13... Output circuit, 14... Level conversion circuit, 14a... Zener diode, 15... Comparison circuit, 16...Relay circuit.
Claims (1)
、 この信号端子の信号を自動車の駆動系切換機を
操作する空気シリンダに供給する空気通路を開閉
する電磁弁に供給するに適する駆動電流に増幅す
る出力回路と を備えた電磁弁の駆動回路において、 前記出力回路の出力に送出される前記駆動電流
の有無を電子回路の信号レベルに変換するレベル
変換回路と、 このレベル変換回路の出力と前記信号端子の信
号との一致または不一致を検出する比較回路と、 この比較回路の出力に不一致が送出されている
とき前記出力回路に供給する電源を遮断するリレ
ー回路と を備えたことを特徴とする電磁弁の駆動回路。 ２ 前記制御信号および前記レベル変換回路の出
力は、いずれもＴＴＬ信号である請求項１記載の
電磁弁の駆動回路。 ３ 前記電磁弁の空気通路はその駆動電流が断の
状態で、その電磁弁により制御される前記駆動系
切換機が安全側になるように接続された請求項１
記載の電磁弁の駆動回路。[Scope of Claim for Utility Model Registration] 1. A signal terminal that receives a control signal from a control circuit, and a signal from this signal terminal that is supplied to a solenoid valve that opens and closes an air passage that supplies an air cylinder that operates a drive system switching device of an automobile. a level conversion circuit that converts the presence or absence of the drive current sent to the output of the output circuit into a signal level of an electronic circuit; a comparison circuit that detects coincidence or mismatch between the output of the level conversion circuit and the signal at the signal terminal; and a relay circuit that cuts off the power supply to the output circuit when a mismatch is sent to the output of the comparison circuit. A solenoid valve drive circuit characterized by comprising: 2. The electromagnetic valve drive circuit according to claim 1, wherein both the control signal and the output of the level conversion circuit are TTL signals. 3. Claim 1, wherein the air passage of the solenoid valve is connected so that the drive system switching machine controlled by the solenoid valve is on the safe side when the drive current is cut off.
Drive circuit for the described solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990084858U JP2528282Y2 (en) | 1990-08-10 | 1990-08-10 | Vehicle drive switching control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990084858U JP2528282Y2 (en) | 1990-08-10 | 1990-08-10 | Vehicle drive switching control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0442977U true JPH0442977U (en) | 1992-04-13 |
| JP2528282Y2 JP2528282Y2 (en) | 1997-03-05 |
Family
ID=31633621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990084858U Expired - Lifetime JP2528282Y2 (en) | 1990-08-10 | 1990-08-10 | Vehicle drive switching control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2528282Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58190620A (en) * | 1982-04-28 | 1983-11-07 | Matsushita Electric Ind Co Ltd | Control device for solenoid valve |
| JPH0244179U (en) * | 1988-09-20 | 1990-03-27 |
-
1990
- 1990-08-10 JP JP1990084858U patent/JP2528282Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58190620A (en) * | 1982-04-28 | 1983-11-07 | Matsushita Electric Ind Co Ltd | Control device for solenoid valve |
| JPH0244179U (en) * | 1988-09-20 | 1990-03-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2528282Y2 (en) | 1997-03-05 |
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