JPS63158472U - - Google Patents
Info
- Publication number
- JPS63158472U JPS63158472U JP1987051238U JP5123887U JPS63158472U JP S63158472 U JPS63158472 U JP S63158472U JP 1987051238 U JP1987051238 U JP 1987051238U JP 5123887 U JP5123887 U JP 5123887U JP S63158472 U JPS63158472 U JP S63158472U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- steering
- switching
- output
- motor
- 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 5
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Control Of Direct Current Motors (AREA)
Description
第１図は本考案の一実施例によるモータ駆動回
路の構成を示すブロツク図、第２図は本実施例に
よるモータ駆動装置が適用される電動式パワース
テアリング機構の概略構成図、第３図は本考案の
一実施例によるモータ駆動回路のブリツジ回路部
及び時定数回路と比較器の構成を示す回路図、第
４図は通常の動作時の各部の波形を示す波形図、
第５図はハンドルがロツクした場合の各部の波形
を示す波形図、第６図は従来の電力制御用素子と
その電流を測定するために挿入される電流検出抵
抗を示す回路図である。
１……ステアリングハンドル、２……トルクセ
ンサ、３……伝動機構、４……モータ駆動回路、
６……ステアリングモータ、１１……トルク入力
端子、１８……ドライブロジツク回路、１９，２
０，２３，２４……ＦＥＴドライバ、２５……ア
ツパＦＥＴ（第１のスイツチング素子）、２６…
…アツパＦＥＴ（第３のスイツチング素子）、２
７……ロアＦＥＴ（第２のスイツチング素子）、
２８……ロアＦＥＴ（第４のスイツチング素子）
、２９，３０……電流検出回路、３１……時定数
回路、３２……比較器、３３……導通保持制御部
、３４……高速スイツチング制御部、Ｔｒ１……
スイツチングトランジスタ（第５のスイツチング
素子）、Ｔｒ２……スイツチングトランジスタ（
第６のスイツチング素子）。
FIG. 1 is a block diagram showing the configuration of a motor drive circuit according to an embodiment of the present invention, FIG. 2 is a schematic configuration diagram of an electric power steering mechanism to which the motor drive device according to this embodiment is applied, and FIG. A circuit diagram showing the configuration of a bridge circuit section, a time constant circuit, and a comparator of a motor drive circuit according to an embodiment of the present invention, FIG. 4 is a waveform diagram showing waveforms of each part during normal operation,
FIG. 5 is a waveform diagram showing the waveforms of various parts when the handle is locked, and FIG. 6 is a circuit diagram showing a conventional power control element and a current detection resistor inserted to measure its current. 1... Steering handle, 2... Torque sensor, 3... Transmission mechanism, 4... Motor drive circuit,
6...Steering motor, 11...Torque input terminal, 18...Drive logic circuit, 19,2
0, 23, 24...FET driver, 25... Atsupah FET (first switching element), 26...
...Atsupa FET (third switching element), 2
7...Lower FET (second switching element),
28...Lower FET (fourth switching element)
, 29, 30...Current detection circuit, 31...Time constant circuit, 32...Comparator, 33...Continuity maintenance control section, 34...High speed switching control section, Tr1...
Switching transistor (fifth switching element), Tr2...Switching transistor (
6th switching element).
Claims (1)
出するトルクセンサと、ステアリングを回動させ
るステアリングモータと、を有する電動式パワー
ステアリングのモータ駆動装置であつて、 右操舵導通保持用の第１のスイツチング素子、
右操舵高速スイツチング用の第２のスイツチング
素子を前記ステアリングモータに対して対称に接
続し、左操舵導通保持用の第３のスイツチング素
子、左操舵高速スイツチング用の第４のスイツチ
ング素子を前記ステアリングモータに対して対称
に接続して構成されたブリツジ回路と、 前記トルクセンサより得られる左右の操舵トル
クの検出に基づいて前記第１又は第３のスイツチ
ング素子を択一的に導通させる導通保持制御部と
、 前記トルクセンサからの出力に基づいてその出
力レベルに対応したパルス幅の信号を前記第２又
は第４のスイツチング素子に選択的に与える高速
スイツチング制御部と、 前記第１、第３のスイツチング素子と、前記第
２、第４のスイツチング素子とのいずれか一方に
択一的に並列接続され、前記並列接続されたスイ
ツチング素子と同時に駆動される第５、第６のス
イツチング素子、及び該第５、第６のスイツチン
グ素子に夫々直列に接続され並列接続されている
前記第１、第３又は第２、第４のスイツチング素
子を流れる電流を検出する電流検出用抵抗を有す
る一対の電流検出手段と、 前記一対の電流検出手段の出力が与えられた時
定数回路と、 前記時定数回路の出力によつて動作し前記高速
スイツチング制御部の出力を可聴周波数で断続す
る比較手段と、を有することを特徴とするモータ
駆動装置。[Scope of Claim for Utility Model Registration] A motor drive device for electric power steering that includes a torque sensor that is connected to a steering shaft and detects its rotational torque, and a steering motor that rotates the steering wheel, which maintains right steering continuity. a first switching element for
A second switching element for right steering high-speed switching is connected symmetrically to the steering motor, and a third switching element for left steering continuity maintenance and a fourth switching element for left steering high-speed switching are connected to the steering motor. a bridge circuit configured to be symmetrically connected to the switching element; and a conduction maintenance control unit that selectively conducts the first or third switching element based on detection of left and right steering torque obtained by the torque sensor. and a high-speed switching control unit that selectively applies a signal having a pulse width corresponding to the output level of the output from the torque sensor to the second or fourth switching element, and the first and third switching elements. fifth and sixth switching elements that are selectively connected in parallel to the element and either the second or fourth switching element and are driven simultaneously with the parallel-connected switching element; 5. A pair of current detection means having a current detection resistor for detecting the current flowing through the first, third, second, and fourth switching elements connected in series and parallel to the sixth switching element, respectively. and a time constant circuit to which the outputs of the pair of current detecting means are applied, and comparison means operated by the output of the time constant circuit to intermittent the output of the high-speed switching control section at an audio frequency. A motor drive device featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987051238U JPH06299Y2 (en) | 1987-04-03 | 1987-04-03 | Motor drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987051238U JPH06299Y2 (en) | 1987-04-03 | 1987-04-03 | Motor drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63158472U true JPS63158472U (en) | 1988-10-18 |
| JPH06299Y2 JPH06299Y2 (en) | 1994-01-05 |
Family
ID=30875312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987051238U Expired - Lifetime JPH06299Y2 (en) | 1987-04-03 | 1987-04-03 | Motor drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06299Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100678624B1 (en) * | 2002-07-16 | 2007-02-05 | 주식회사 만도 | Power source control circuit of ecu |
| WO2019138698A1 (en) * | 2018-01-10 | 2019-07-18 | 日本電産株式会社 | Power conversion device, motor module, and electric power steering device |
-
1987
- 1987-04-03 JP JP1987051238U patent/JPH06299Y2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100678624B1 (en) * | 2002-07-16 | 2007-02-05 | 주식회사 만도 | Power source control circuit of ecu |
| WO2019138698A1 (en) * | 2018-01-10 | 2019-07-18 | 日本電産株式会社 | Power conversion device, motor module, and electric power steering device |
| CN111557075A (en) * | 2018-01-10 | 2020-08-18 | 日本电产株式会社 | Power conversion device, motor module, and electric power steering device |
| JPWO2019138698A1 (en) * | 2018-01-10 | 2021-01-21 | 日本電産株式会社 | Power converter, motor module and electric power steering device |
| US11329588B2 (en) | 2018-01-10 | 2022-05-10 | Nidec Corporation | Power conversion device, motor module, and electric power steering device |
| CN111557075B (en) * | 2018-01-10 | 2024-03-08 | 日本电产株式会社 | Power conversion device, motor module, and electric power steering device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06299Y2 (en) | 1994-01-05 |
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