JPS63168162U - - Google Patents
Info
- Publication number
- JPS63168162U JPS63168162U JP6188887U JP6188887U JPS63168162U JP S63168162 U JPS63168162 U JP S63168162U JP 6188887 U JP6188887 U JP 6188887U JP 6188887 U JP6188887 U JP 6188887U JP S63168162 U JPS63168162 U JP S63168162U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switching means
- main control
- relay
- series
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000003745 diagnosis Methods 0.000 claims description 2
- 230000005856 abnormality Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Description
第１図はこの考案の実施例に係る電動式パワー
ステアリング装置の電動系統図、第２図はこの考
案の実施例に係る電動式パワーステアリング装置
の操舵トルク検出信号を示す特性図、第３図はこ
の考案の実施例に係る電動式パワーステアリング
装置の操舵回転検出信号を示す特性図、第４図は
この考案の実施例に係る電動式パワーステアリン
グ装置の主制御回路２２が演算する電動機トルク
制御デユーテイ信号の特性図、第５図はこの考案
の実施例に係る電動式パワーステアリング装置の
主制御回路２２が演算する電動機の回転数制御デ
ユーテイ信号の特性図、第６図はこの考案の実施
例に係る電動式パワーステアリング装置の電動機
の異常電流検出回路４０の検出特性図、第７図は
この考案の実施例に係る電動式パワーステアリン
グ装置の機械構成図、第８図はこの考案の実施例
に係る電動式パワーステアリング装置の主要な動
作を説明するためのフローチヤート、第９図は第
８図のフローチヤートにおける初期故障診断のサ
ブルーチンを示すフローチヤートである。
図面において、１は検出回路、２は主制御回路
、３は電動機駆動回路、４は電動機、５は電源回
路、３８は抵抗、３９はリレー回路、４０は電流
回路、５４はリレー回路である。
Fig. 1 is an electric system diagram of an electric power steering device according to an embodiment of this invention, Fig. 2 is a characteristic diagram showing a steering torque detection signal of the electric power steering device according to an embodiment of this invention, and Fig. 3 4 is a characteristic diagram showing the steering rotation detection signal of the electric power steering device according to the embodiment of this invention, and FIG. 4 shows the electric motor torque control calculated by the main control circuit 22 of the electric power steering device according to the embodiment of this invention. A characteristic diagram of the duty signal; FIG. 5 is a characteristic diagram of the motor rotation speed control duty signal calculated by the main control circuit 22 of the electric power steering device according to an embodiment of the invention; FIG. 6 is an embodiment of the invention. FIG. 7 is a mechanical configuration diagram of the electric power steering device according to an embodiment of the invention, and FIG. 8 is an embodiment of the invention. FIG. 9 is a flowchart showing a subroutine for initial failure diagnosis in the flowchart of FIG. 8. In the drawing, 1 is a detection circuit, 2 is a main control circuit, 3 is a motor drive circuit, 4 is an electric motor, 5 is a power supply circuit, 38 is a resistor, 39 is a relay circuit, 40 is a current circuit, and 54 is a relay circuit.
Claims (1)
御回路が決定した補助トルクを発生させる電動機
と、前記補助トルクを発生させるべく主制御回路
の出力指令に基づき前記電動機に電力を供給する
電動機駆動回路と、前記主制御回路による異常検
出信号により電動機を前記主制御回路側から切離
すリレーを有するリレー回路とを備え、 前記電動機駆動回路は、２つのスイツチング手
段を直列接続した回路を更に２つ並列接続し、こ
の２つの直列回路の節点に電源を供給し、また各
直列回路の２のスイツチング手段の節点を前記電
動機に接続し、且つ 前記リレー回路は、前記電源と前記ブリツジ回
路との間並びに前記電動機と前記ブリツジ回路と
の間にそれぞれ介在させるようにした電動式パワ
ーステアリング装置において、 前記主制御回路は、装置の起動に先立ち前記リ
レー回路が開放状態にあるときに、前記ブリツジ
回路の一方の直列回路の前記各スイツチング手段
を所定時間オン状態とし、次に前記ブリツジ回路
の対角状に位置する２つの前記スイツチング手段
をオン状態とし、又は逆の順序で前記ブリツジ回
路の各スイツチング手段をオン状態として前記リ
レー回路の故障診断を実行するようにしたことを
特徴とする電動式パワーステアリング装置。[Claims for Utility Model Registration] An electric motor that generates an auxiliary torque determined by a main control circuit based on the amount of operation applied to the steering system; and a relay circuit having a relay that disconnects the motor from the main control circuit side in response to an abnormality detection signal from the main control circuit, and the motor drive circuit has two switching means connected in series. two more circuits are connected in parallel, power is supplied to the nodes of the two series circuits, and nodes of two switching means of each series circuit are connected to the motor, and the relay circuit connects the power supply and the In the electric power steering device interposed between the bridge circuit and the electric motor and the bridge circuit, the main control circuit operates when the relay circuit is in an open state prior to starting the device. , the respective switching means of one series circuit of the bridge circuit are turned on for a predetermined period of time, and then the two switching means located diagonally in the bridge circuit are turned on, or the bridge circuit is turned on in the reverse order. An electric power steering device characterized in that a failure diagnosis of the relay circuit is performed by turning on each switching means of the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6188887U JPH0542705Y2 (en) | 1987-04-23 | 1987-04-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6188887U JPH0542705Y2 (en) | 1987-04-23 | 1987-04-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63168162U true JPS63168162U (en) | 1988-11-01 |
| JPH0542705Y2 JPH0542705Y2 (en) | 1993-10-27 |
Family
ID=30895639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6188887U Expired - Lifetime JPH0542705Y2 (en) | 1987-04-23 | 1987-04-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0542705Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005067380A (en) * | 2003-08-25 | 2005-03-17 | Honda Motor Co Ltd | Breakdown detection method for electric power steering device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3486749B2 (en) * | 2000-04-05 | 2004-01-13 | 本田技研工業株式会社 | Electric power steering device |
-
1987
- 1987-04-23 JP JP6188887U patent/JPH0542705Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005067380A (en) * | 2003-08-25 | 2005-03-17 | Honda Motor Co Ltd | Breakdown detection method for electric power steering device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0542705Y2 (en) | 1993-10-27 |
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