JPH0360485U - - Google Patents
Info
- Publication number
- JPH0360485U JPH0360485U JP11923189U JP11923189U JPH0360485U JP H0360485 U JPH0360485 U JP H0360485U JP 11923189 U JP11923189 U JP 11923189U JP 11923189 U JP11923189 U JP 11923189U JP H0360485 U JPH0360485 U JP H0360485U
- Authority
- JP
- Japan
- Prior art keywords
- actuator
- circuit
- check
- drive circuit
- 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
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Description
第１図は本考案の一実施例を示す全体構成図、
第２図は制御ブロツク図、第３図は駆動回路及び
チエツク回路を示す電気回路図、第４図は制御フ
ローチヤート図である。
１……ロツク解除エアシリンダ、１３……スピ
ードコントロールバルブ、１４……ロツク解除バ
ルブ、１５……逆相モード切換バルブ、１６……
同相モード切換バルブ、１７……スピードコント
ロールエアシリンダ、１９……アクチユエータ電
源リレー、２０……コントロールユニツト、２０
ａ……制御回路、２０ｂ……判定回路、２０ｃ…
…記憶回路、５１……モード切換アクチユエータ
、Ｃ１〜Ｃ４……チエツク回路、Ｄ１〜Ｄ４……
駆動回路、Ｔｒ……トランジスタ、ＺＤ……ツエ
ナーダイオード。
FIG. 1 is an overall configuration diagram showing an embodiment of the present invention;
FIG. 2 is a control block diagram, FIG. 3 is an electric circuit diagram showing a drive circuit and a check circuit, and FIG. 4 is a control flowchart. 1...Lock release air cylinder, 13...Speed control valve, 14...Lock release valve, 15...Reverse phase mode switching valve, 16...
Common mode switching valve, 17... Speed control air cylinder, 19... Actuator power supply relay, 20... Control unit, 20
a...control circuit, 20b...judgment circuit, 20c...
...Storage circuit, 51...Mode switching actuator, C1 to C4 ...Check circuit, D1 to D4 ...
Drive circuit, Tr...transistor, ZD...Zener diode.
Claims (1)
ータの電磁バルブに駆動信号を出力する駆動回路
を各電磁バルブ及びアクチユエータ電源リレーを
介して電源に接続すると共に、前記駆動回路から
分岐してチエツク回路を設け、該チエツク回路か
らのチエツク信号に基づいて各アクチユエータ及
びアクチユエータ電源リレーの異常を判定する判
定手段を設けたことを特徴とする４輪操舵車。 A drive circuit that outputs a drive signal to the electromagnetic valves of the actuator that are selectively operated depending on the steering mode is connected to a power source via each electromagnetic valve and an actuator power relay, and a check circuit is provided branching off from the drive circuit. 1. A four-wheel steering vehicle, characterized in that it is provided with a determining means for determining whether each actuator and actuator power supply relay is abnormal based on a check signal from a check circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989119231U JP2511026Y2 (en) | 1989-10-13 | 1989-10-13 | 4-wheel steering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989119231U JP2511026Y2 (en) | 1989-10-13 | 1989-10-13 | 4-wheel steering vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0360485U true JPH0360485U (en) | 1991-06-13 |
| JP2511026Y2 JP2511026Y2 (en) | 1996-09-18 |
Family
ID=31667362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989119231U Expired - Lifetime JP2511026Y2 (en) | 1989-10-13 | 1989-10-13 | 4-wheel steering vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2511026Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61105638A (en) * | 1984-10-29 | 1986-05-23 | Hitachi Ltd | Gradual shape clipping method |
| JPS62152977A (en) * | 1985-12-26 | 1987-07-07 | Mazda Motor Corp | Steering device for four wheel of vehicle |
-
1989
- 1989-10-13 JP JP1989119231U patent/JP2511026Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61105638A (en) * | 1984-10-29 | 1986-05-23 | Hitachi Ltd | Gradual shape clipping method |
| JPS62152977A (en) * | 1985-12-26 | 1987-07-07 | Mazda Motor Corp | Steering device for four wheel of vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2511026Y2 (en) | 1996-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |