JPH0398404A - Miniature motorcar - Google Patents
Miniature motorcarInfo
- Publication number
- JPH0398404A JPH0398404A JP1235133A JP23513389A JPH0398404A JP H0398404 A JPH0398404 A JP H0398404A JP 1235133 A JP1235133 A JP 1235133A JP 23513389 A JP23513389 A JP 23513389A JP H0398404 A JPH0398404 A JP H0398404A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic brake
- brake
- state
- accelerator lever
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 11
- 230000005284 excitation Effects 0.000 abstract description 6
- 238000013459 approach Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は主として走行不自由者や高齢者を対象とした小
型電動車であって、通電励磁によって制動を解除する走
行用の電磁ブレーキと走行用の電動モータを装備してい
る小型電動車に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a small electric vehicle mainly aimed at people with mobility disabilities and the elderly, and which includes an electromagnetic brake for driving that releases braking by energization and an electric vehicle for driving. This invention relates to a small electric vehicle equipped with an electric motor.
上記構威において、例えば、前記電磁プレーキ八の駆動
回路中に断線やカップラ故障等があったとしても、前記
電動モータに対しては別回路であるから電圧を作用させ
ることはできる。In the above structure, even if there is a disconnection or a coupler failure in the drive circuit of the electromagnetic brake 8, for example, a voltage can be applied to the electric motor because it is a separate circuit.
しかし、走行を開始すべく前記電動モータに走行指令を
発し、電磁ブレーキに解除信号を発したとしても、前記
カップラ等の故障があると、電磁ブレーキの解除用コイ
ルに電流が通電されない。したがって、電磁ブレーキの
ブレーキ状態が解除されないまま電動モータが作動する
ことになり、電動モータに過負荷がかかるといった不具
合が生じていた。However, even if a travel command is issued to the electric motor to start traveling and a release signal is issued to the electromagnetic brake, if there is a failure in the coupler or the like, current will not be applied to the release coil of the electromagnetic brake. Therefore, the electric motor operates without the electromagnetic brake being released from the brake state, resulting in a problem that the electric motor is overloaded.
本発明の目的は簡易な検出機構の採用によって、前記し
たような不具合を極力回避できるものを提供する点にあ
る。An object of the present invention is to provide a device that can avoid the above-mentioned problems as much as possible by employing a simple detection mechanism.
本発明による特徴構成は、電磁ブレーキの通電状態を検
出する機構を設けるとともに、前記検出機構が通電状態
を検出したならば、前記電動モータに動作指令を発する
制御装置を設けてある点にあり、その作用効果は次の通
りである．〔作 用〕
例えば、電磁ブレーキへの通電状態を検出する機構とし
て、電磁ブレーキのコイルに流れる電流を捉える検出機
構を設けることによって、この検出機構が電流が流れた
ことを検出したならば電磁ブレーキが制動状態を解除さ
れたと判断して、次に、電動モータに動作指令を発する
。A characteristic configuration according to the present invention is that a mechanism for detecting the energization state of the electromagnetic brake is provided, and a control device is provided that issues an operation command to the electric motor when the detection mechanism detects the energization state, Its effects are as follows. [Function] For example, by providing a detection mechanism that detects the current flowing in the coil of the electromagnetic brake as a mechanism for detecting the energization state of the electromagnetic brake, if this detection mechanism detects that current flows, the electromagnetic brake will be activated. It is determined that the braking state has been released, and then an operation command is issued to the electric motor.
したがって、必ず電磁ブレーキへの通電を確認して制動
解除されたことをもとに、電動モータを作動させるので
、ブレーキの引摺りによる電動モータの過負荷現象を防
止できる。Therefore, since the electric motor is operated only after confirming that the electromagnetic brake is energized and the brake is released, it is possible to prevent the electric motor from being overloaded due to dragging of the brake.
ただし、電動モータの過負荷現象を回避する効果を奏す
るものとして、ブレーキ解除スイッチを持ったもの（実
公昭６１−１１９２３号公報）、ブレーキスイッチの大
切によって自動的に電動モータへの電源が切人されるも
のがあるが（実公昭５５−１３１３７号公報）、これら
の場合にはブレーキスイッチを切操作したとしても、実
際に電磁ブレーキが制動状態を解除されたかどうかの確
認手段がなく、ブレーキ制動状態で電動モータを起動さ
せる状態は依然として起り得る。それに対して、本発明
では電磁ブレーキの通電状態から制動解除状態を確実に
把握できるのでより確実に電動モータの過負荷現象を回
避できる。However, as a device that has the effect of avoiding the overload phenomenon of the electric motor, there is a brake release switch (Japanese Utility Model Publication No. 11923/1983), which automatically turns off the power to the electric motor due to the importance of the brake switch. However, in these cases, even if the brake switch is turned off, there is no way to check whether the electromagnetic brake is actually released from the braking state, and the brake is not applied. Conditions may still occur in which the electric motor is started in the following conditions. In contrast, in the present invention, since the brake release state can be reliably determined from the energization state of the electromagnetic brake, overloading of the electric motor can be more reliably avoided.
第２図に示すように、金属製のパイプフレームに樹脂製
のカバーを取付けてなる車体（１）に、走行用の単一前
車輪（２）、その上方に操向用ハンドル（３）、後部操
縦席（５）の下方に左右一対の後車輪（４），（４）
、後車輪（４） ． （４）駆動用電動モータ（６）及
び減速ケース（７）、雷動モータ（６）等へのバッテリ
ー（８）を搭載する小型雷動車を構威する。前記操向用
ハンドル（３）を取付ける操縦ボックス（９）に、アク
セル用設定ボリューム（１ １ａ）を操作するアクセル
レバー（１１）を設けるとともに、高低速度設定及び前
後進切換用スイッチ（１２）を設けてある。一方、操向
用前車輪（２）の上方に、ハンドル軸（１０）の回転角
を検出するボテンショメー夕式ステアリング角検出セン
サ（１３）を設けるとともに、その前方側に障害物との
間隔を測定する超音波式センサ（１４）を設け、この超
音波式センサ（１４）を収納するバンパー（ｌ５）に衝
突検出センサ（１６）を設けてある。As shown in Fig. 2, the vehicle body (1) is made up of a metal pipe frame with a resin cover attached, a single front wheel (2) for driving, a steering handle (3) above it, A pair of left and right rear wheels (4), (4) below the rear cockpit (5)
, rear wheels (4). (4) A small lightning vehicle is equipped with a driving electric motor (6), a deceleration case (7), a battery (8) for the lightning motor (6), etc. The control box (9) to which the steering handle (3) is attached is provided with an accelerator lever (11) for operating the accelerator setting volume (11a), and a switch (12) for high/low speed setting and forward/reverse switching. It is provided. On the other hand, a potentiometer-type steering angle detection sensor (13) for detecting the rotation angle of the steering wheel shaft (10) is provided above the steering front wheel (2), and a distance to an obstacle is measured on the front side thereof. A collision detection sensor (16) is provided on the bumper (15) that accommodates the ultrasonic sensor (14).
これらセンサ（１６）等からの信号は制御装置（ｌ７）
に人力され、モータ駆動回路（ｌ８）を介して電動モー
タ（６）、及び、電磁ブレーキ駆動回路（ｌ９）を介し
て電磁ブレーキ（２０）を駆動すべく構成してある。Signals from these sensors (16) etc. are sent to the control device (l7).
The electric motor (6) is manually operated via a motor drive circuit (l8), and the electromagnetic brake (20) is driven via an electromagnetic brake drive circuit (l9).
この電磁ブレーキ（２０）は通電励磁によって制動を解
除するとともに非通電で制動状態を得る無励磁作動型で
ある。そして、前記アクセルレハー（１１）が操作され
るとブレーキ状態が解除され、前記アクセルレバー（１
１）が非操作状態になると、ブレーキ状態が現出される
。又、前記超音波センサ（１４）の検出結果に基づいて
車体（１）と障害物どの間隔が一定以内に接近すると走
行速度を所定の低速度に落とす走行制御を行う。This electromagnetic brake (20) is of a non-excitation operating type, in which braking is released by energization and excitation, and the braking state is achieved by de-energization. When the accelerator lever (11) is operated, the brake state is released, and the accelerator lever (11) is released.
When 1) becomes inactive, a brake state appears. Furthermore, based on the detection result of the ultrasonic sensor (14), when the distance between the vehicle body (1) and an obstacle approaches within a certain range, travel control is performed to reduce the travel speed to a predetermined low speed.
そして、この低速度になった状態においても障書物との
衝突によって、前記衝突検出センサ（１６）が作動する
と電動モータ（６）を停止する制御を行う。Even in this low speed state, if the collision detection sensor (16) is activated due to a collision with an obstructing book, control is performed to stop the electric motor (6).
次に電磁ブレーキ（２０）の通電状態を検出する機構（
２２）について説明する。つまり、電磁ブレーキ（２０
）への配線中に断線等があるとアクセルレバー（１１）
が操作されると制動状態が解除されない状態で電動モー
タ（６）が作動することがある。そこで、このような事
態を解除する為に、電磁ブレーキ（２０）の励磁回路に
、二つのトランジスタ（ＴＲＩ）， （ＴＲＩ）を設け
た通電電流検出機構（２２）を設け、電磁ブレーキ（２
０）のコイルに励磁電流が流れると、（ＴＲＩ） ，
（ＴＲＹ）が導通して、通電状態確認信号が前記制御装
置（１７）に人力され、その後、前記電動モータ（６）
に動作指令を発することになる。したがって、アクセル
レバー（１１）を操作しても、電磁ブレーキ（２０）に
励磁電流が流れない限り、電動モータ（６）は作動しな
い。Next, a mechanism (
22) will be explained. In other words, the electromagnetic brake (20
) If there is a break in the wiring to the accelerator lever (11)
When is operated, the electric motor (6) may operate without being released from the braking state. Therefore, in order to eliminate such a situation, an energizing current detection mechanism (22) provided with two transistors (TRI) is provided in the excitation circuit of the electromagnetic brake (20).
When an excitation current flows through the coil 0), (TRI),
(TRY) becomes conductive, a energization state confirmation signal is manually input to the control device (17), and then the electric motor (6)
A movement command will be issued. Therefore, even if the accelerator lever (11) is operated, the electric motor (6) will not operate unless an exciting current flows through the electromagnetic brake (20).
４
前記電磁ブレーキ（２０）の通電状態を検出する機構（
２２）としては、励磁コイルにかかる電圧等を取出す構
或のものでもよい。4 A mechanism for detecting the energization state of the electromagnetic brake (20) (
22) may be a structure that extracts the voltage applied to the excitation coil.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
図面は本発明に係る小型電動車の実施例を示し、第１図
は制御構成図、第２図は全体側面図である。
（６）・・・・・・電動モータ、（ｌ７）・・・・・・
制御装置、（２０）・・・・・・電磁ブレーキ、（２２
）・・・・・・検出する機構。The drawings show an embodiment of a small electric vehicle according to the present invention, with FIG. 1 being a control configuration diagram and FIG. 2 being an overall side view. (6)...Electric motor, (l7)...
Control device, (20)... Electromagnetic brake, (22
)...Mechanism for detection.
Claims (1)
（２０）と走行用の電動モータ（６）を装備している小
型電動車であって、電磁ブレーキ（２０）の通電状態を
検出する機構（２２）を設けるとともに、前記検出機構
（２２）が通電状態を検出したならば、前記電動モータ
（６）に動作指令を発する制御装置（１７）を設けてあ
る小型電動車。This is a small electric vehicle equipped with an electromagnetic brake (20) for driving that releases braking by energization and an electric motor (6) for driving, and a mechanism (22) that detects the energization state of the electromagnetic brake (20). ), and a control device (17) that issues an operation command to the electric motor (6) when the detection mechanism (22) detects an energized state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1235133A JPH0398404A (en) | 1989-09-11 | 1989-09-11 | Miniature motorcar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1235133A JPH0398404A (en) | 1989-09-11 | 1989-09-11 | Miniature motorcar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0398404A true JPH0398404A (en) | 1991-04-24 |
Family
ID=16981544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1235133A Pending JPH0398404A (en) | 1989-09-11 | 1989-09-11 | Miniature motorcar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0398404A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6756750B2 (en) | 2001-11-06 | 2004-06-29 | Honda Giken Kogyo Kabushiki Kaisha | Electric vehicle |
| US6794834B2 (en) | 2001-11-20 | 2004-09-21 | Honda Giken Kogyo Kabushiki Kaisha | Electric vehicle |
| US6948577B2 (en) | 2001-11-06 | 2005-09-27 | Honda Giken Kogyo Kabushiki Kaisha | Electric vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01114385A (en) * | 1987-10-26 | 1989-05-08 | Mitsubishi Electric Corp | Motor controller |
-
1989
- 1989-09-11 JP JP1235133A patent/JPH0398404A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01114385A (en) * | 1987-10-26 | 1989-05-08 | Mitsubishi Electric Corp | Motor controller |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6756750B2 (en) | 2001-11-06 | 2004-06-29 | Honda Giken Kogyo Kabushiki Kaisha | Electric vehicle |
| US6948577B2 (en) | 2001-11-06 | 2005-09-27 | Honda Giken Kogyo Kabushiki Kaisha | Electric vehicle |
| DE10251687B4 (en) * | 2001-11-06 | 2013-04-11 | Honda Giken Kogyo K.K. | electric vehicle |
| US6794834B2 (en) | 2001-11-20 | 2004-09-21 | Honda Giken Kogyo Kabushiki Kaisha | Electric vehicle |
| DE10253942B4 (en) * | 2001-11-20 | 2007-04-12 | Honda Giken Kogyo K.K. | electric vehicle |
| DE20221874U1 (en) | 2001-11-20 | 2008-10-16 | Honda Giken Kogyo K.K. | snow |
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