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
Application number
JP2195490U
Other languages
Japanese (ja)
Other versions
JP2531285Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990021954U priority Critical patent/JP2531285Y2/en
Publication of JPH03112472U publication Critical patent/JPH03112472U/ja
Application granted granted Critical
Publication of JP2531285Y2 publication Critical patent/JP2531285Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Steering Control In Accordance With Driving Conditions (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

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)

【実用新案登録請求の範囲】 (1) 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.
JP1990021954U 1990-03-05 1990-03-05 Fail safe device for rear wheel steering system of vehicle Expired - Lifetime JP2531285Y2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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