JPH03112472U - - Google Patents
Info
- Publication number
- JPH03112472U JPH03112472U JP2195490U JP2195490U JPH03112472U JP H03112472 U JPH03112472 U JP H03112472U JP 2195490 U JP2195490 U JP 2195490U JP 2195490 U JP2195490 U JP 2195490U JP H03112472 U JPH03112472 U JP H03112472U
- Authority
- JP
- Japan
- Prior art keywords
- current
- electric motor
- wheel steering
- vehicle
- rear wheel
- 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 7
- 230000002401 inhibitory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Description
第1図は本考案の第1の実施例を示すモータ駆
動回路の回路図、第2図は第2の実施例を示すモ
ータ駆動回路の回路図、第3図は後輪操舵装置の
システム図、第4図は従来例を示すモータ駆動回
路の回路図、第5図は従来例における問題点を示
す図である。
1……電動モータ、2……ギア機構、3……後
輪操舵軸、4……コントロールユニツト、5……
ポテンシヨメータ、6……モータ駆動回路、11
……パルス幅変調回路、12……トランジスタ駆
動回路、13,15……電流検出用抵抗、14,
16……電流検出回路、17,18……比較器、
19……EOR回路、20……作動回路、21…
…ドライバリレー、23……比較器、24……ア
ナログスイツチ。
Fig. 1 is a circuit diagram of a motor drive circuit showing a first embodiment of the present invention, Fig. 2 is a circuit diagram of a motor drive circuit showing a second embodiment, and Fig. 3 is a system diagram of a rear wheel steering device. , FIG. 4 is a circuit diagram of a motor drive circuit showing a conventional example, and FIG. 5 is a diagram showing problems in the conventional example. 1... Electric motor, 2... Gear mechanism, 3... Rear wheel steering shaft, 4... Control unit, 5...
Potentiometer, 6...Motor drive circuit, 11
... Pulse width modulation circuit, 12 ... Transistor drive circuit, 13, 15 ... Current detection resistor, 14,
16... Current detection circuit, 17, 18... Comparator,
19... EOR circuit, 20... Operating circuit, 21...
...Driver relay, 23...Comparator, 24...Analog switch.
Claims (1)
も前輪舵角と車速とに基づいて電動モータへの電
流の方向と大きさとを設定し、電流検出手段によ
り電動モータに実際に流れる電流を検出しつつ、
電動モータへの電流を制御することにより、後輪
を操舵する車両の後輪操舵装置において、 前記電流検出手段として、前記電動モータの一
端に直列に介装された電流検出用抵抗を設ける一
方、 前記電動モータの他端に直列に介装された別の
電流検出用抵抗と、これら2つの電流検出用抵抗
により検出される電流を比較して不一致のときに
信号を出力する不一致回路と、この不一致信号を
受けて前記電動モータへの通電を禁止する通電禁
止手段とを設けたことを特徴とする車両の後輪操
舵装置のフエイルセーフ装置。 (2) 後輪操舵用の電動モータを備え、少なくと
も前輪舵角と車速とに基づいて電動モータへの電
流の方向と大きさとを設定し、電流検出手段によ
り電動モータに実際に流れる電流を検出しつつ、
電動モータへの電流を制御することにより、後輪
を操舵する車両の後輪操舵装置において、 前記電流検出手段として、前記電動モータの両
端にそれぞれ直列に介装された電流検出用抵抗と
、これら2つの電流検出用抵抗により検出される
電流の大きさを比較して大きい方を選択する選択
手段とを設けたことを特徴とする車両の後輪操舵
装置のフエイルセーフ装置。[Scope of Claim for Utility Model Registration] (1) An electric motor is provided for rear wheel steering, the direction and magnitude of current to the electric motor are set based on at least the front wheel steering angle and the vehicle speed, and the electric current is controlled by a current detection means. While detecting the current actually flowing through the motor,
In a rear wheel steering device for a vehicle that steers rear wheels by controlling current to an electric motor, the current detecting means is provided with a current detecting resistor connected in series to one end of the electric motor; a mismatch circuit that compares the currents detected by these two current detection resistors with another current detection resistor connected in series with the other end of the electric motor and outputs a signal when they do not match; 1. A fail-safe device for a rear wheel steering system of a vehicle, comprising: energization prohibiting means for inhibiting energization to the electric motor in response to a mismatch signal. (2) An electric motor is provided for steering the rear wheels, the direction and magnitude of the current to the electric motor are set based on at least the steering angle of the front wheels and the vehicle speed, and the current actually flowing to the electric motor is detected by a current detection means. While doing so,
In a rear wheel steering device for a vehicle that steers rear wheels by controlling current to an electric motor, the current detecting means includes current detecting resistors connected in series at both ends of the electric motor, and 1. A fail-safe device for a rear wheel steering device of a vehicle, comprising a selection means for comparing the magnitude of the current detected by two current detection resistors and selecting the larger one.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990021954U JP2531285Y2 (en) | 1990-03-05 | 1990-03-05 | Fail safe device for rear wheel steering system of vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990021954U JP2531285Y2 (en) | 1990-03-05 | 1990-03-05 | Fail safe device for rear wheel steering system of vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03112472U true JPH03112472U (en) | 1991-11-18 |
JP2531285Y2 JP2531285Y2 (en) | 1997-04-02 |
Family
ID=31524983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990021954U Expired - Lifetime JP2531285Y2 (en) | 1990-03-05 | 1990-03-05 | Fail safe device for rear wheel steering system of vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2531285Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018182798A (en) * | 2017-04-04 | 2018-11-15 | 株式会社デンソー | Electronic control device |
WO2018220798A1 (en) * | 2017-06-01 | 2018-12-06 | オリンパス株式会社 | Motor control device and motor control method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61135390A (en) * | 1984-12-03 | 1986-06-23 | Mitsubishi Heavy Ind Ltd | Current measuring device of dc motor |
JPS61169366A (en) * | 1985-01-23 | 1986-07-31 | Hitachi Ltd | Motor-driven type power steering control device |
JPS62279171A (en) * | 1986-05-27 | 1987-12-04 | Toyoda Mach Works Ltd | Safety circuit for electric type power steering device |
JPS63180563A (en) * | 1987-01-22 | 1988-07-25 | Honda Motor Co Ltd | Electromotive power steering device |
JPH01112172U (en) * | 1988-01-25 | 1989-07-27 | ||
JPH0253667A (en) * | 1988-08-18 | 1990-02-22 | Mazda Motor Corp | Motor-driven power steering device |
-
1990
- 1990-03-05 JP JP1990021954U patent/JP2531285Y2/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61135390A (en) * | 1984-12-03 | 1986-06-23 | Mitsubishi Heavy Ind Ltd | Current measuring device of dc motor |
JPS61169366A (en) * | 1985-01-23 | 1986-07-31 | Hitachi Ltd | Motor-driven type power steering control device |
JPS62279171A (en) * | 1986-05-27 | 1987-12-04 | Toyoda Mach Works Ltd | Safety circuit for electric type power steering device |
JPS63180563A (en) * | 1987-01-22 | 1988-07-25 | Honda Motor Co Ltd | Electromotive power steering device |
JPH01112172U (en) * | 1988-01-25 | 1989-07-27 | ||
JPH0253667A (en) * | 1988-08-18 | 1990-02-22 | Mazda Motor Corp | Motor-driven power steering device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018182798A (en) * | 2017-04-04 | 2018-11-15 | 株式会社デンソー | Electronic control device |
WO2018220798A1 (en) * | 2017-06-01 | 2018-12-06 | オリンパス株式会社 | Motor control device and motor control method |
Also Published As
Publication number | Publication date |
---|---|
JP2531285Y2 (en) | 1997-04-02 |
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