JPS62210809A - Electric rolling stock controller having controlling function of electromagnetic switch - Google Patents
Electric rolling stock controller having controlling function of electromagnetic switchInfo
- Publication number
- JPS62210809A JPS62210809A JP61052511A JP5251186A JPS62210809A JP S62210809 A JPS62210809 A JP S62210809A JP 61052511 A JP61052511 A JP 61052511A JP 5251186 A JP5251186 A JP 5251186A JP S62210809 A JPS62210809 A JP S62210809A
- Authority
- JP
- Japan
- Prior art keywords
- attraction
- voltage
- electromagnetic switch
- contact
- control
- 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
- 238000005096 rolling process Methods 0.000 title 1
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004904 shortening Methods 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
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は電磁開閉器のチョッパ制御機能を有する電気車
制御装置に係り、特にバッテリフォークリフトの制御に
好適な電磁開閉器の制御機能を有する電気車制御装置に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric vehicle control device having a chopper control function of an electromagnetic switch, and more particularly to an electric vehicle control device having a control function of an electromagnetic switch suitable for controlling a battery forklift.
従来のバッテリフォーク用電気車制御装置は、特開昭５
５−１６２８０４号のように装置異常時に、電動機と閉
回路をなす電磁開閉器を開放し制御回路を遮断する技術
については述べられているが、電磁開閉量吸引における
通電電圧の制御方式については述べられていない。The conventional electric vehicle control device for battery fork was developed in Japanese Patent Application Laid-open No. 5
No. 5-162804 describes a technology for opening an electromagnetic switch that forms a closed circuit with the motor and interrupting the control circuit when a device abnormality occurs, but it does not mention a control method for the energizing voltage in electromagnetic switching amount suction. It has not been done.
上記従来技術は、電磁開閉器の接点吸引時に吸引用コイ
ルに直流電圧を印加し、接点の吸引後もその状態を維持
している。しかし電磁開閉器の接点の吸引電圧は通常２
０（Ｖ）程度で、一度吸引すれば接点の開放電圧は１０
（Ｖ）程度に下がるため、吸り口；必要な電圧を常時印
加する必要は無本発明の目的は、電磁開閉器の吸引特性
を損なうことなく、吸引時の消費電力を低減してバッテ
リの一充電稼動時間の向上を図ると共に、接点の開放時
間を短かくすることにある。In the above-mentioned prior art, a DC voltage is applied to the attraction coil when the contacts of the electromagnetic switch are attracted, and this state is maintained even after the contacts are attracted. However, the attraction voltage of the contacts of an electromagnetic switch is usually 2
It is about 0 (V), and once it is attracted, the open voltage of the contact is 10
(V), so there is no need to constantly apply the necessary voltage at the suction port.The purpose of the present invention is to reduce power consumption during suction without impairing the suction characteristics of the electromagnetic switch, thereby saving battery power. The purpose is to improve the operating time per charge and to shorten the open time of the contacts.
上記目的を達成するために、電磁開閉器の接点吸引用コ
イルの印加電圧を、接点が吸引するまでは一定電圧を印
加して吸引に要する時間を短かくし、接点が吸引した後
は、印加電圧をチョッパ制御して平均印加電圧を下げ、
前記接点開放に要する時間を短かくすることにより、達
成される。In order to achieve the above purpose, the voltage applied to the contact attraction coil of the electromagnetic switch is shortened by applying a constant voltage until the contact attracts the contact, and then the applied voltage is controlled by a chopper to lower the average applied voltage,
This is achieved by shortening the time required to open the contacts.
〔作用〕
制御回路は、スイッチ８を閉じると電磁開閉器２を吸引
するために制御部７はトランジスタ６をオンさせるが、
電磁開閉器２の接点が吸引するまでは吸引検出信号９か
らは電圧が発生しないため、トランジスタ６はオンの状
態を維持し、吸引用コイル４にはほぼバッテリ電圧が印
加されるため、吸引を開始する。[Function] In the control circuit, when the switch 8 is closed, the control unit 7 turns on the transistor 6 in order to attract the electromagnetic switch 2.
Since no voltage is generated from the attraction detection signal 9 until the contact of the electromagnetic switch 2 is attracted, the transistor 6 maintains the on state, and since almost the battery voltage is applied to the attraction coil 4, the attraction is not activated. Start.
接点が完全に吸引すると、吸引検出信号にはバッテリ電
圧が発生するため、制御部７はトランジスタ６をオン、
オフさせチョッパ制御に切り替え、コイルの平均印加電
圧を減少させる。電磁開閉器の開放電圧は吸引電圧に比
べ極端に低いため、接点は開放することなく、適度の吸
引トルクを維持する。このとき吸引用コイルの平均印加
電圧はバッテリ電圧を印加するに比べて低いため、スイ
ッチ８をオフにして制御部７がトランジスタ６をオフに
し、接点を開放するに要する時間も短かくできると共に
、消費電力も低く抑えることができるため、バッテリ１
の消費電力も少なくて済み、−充電走行時間の向上を図
ることができる。When the contact is completely attracted, the battery voltage is generated in the attraction detection signal, so the control unit 7 turns on the transistor 6,
Turn it off and switch to chopper control to reduce the average applied voltage to the coil. Since the open voltage of the electromagnetic switch is extremely low compared to the attraction voltage, the contacts do not open and maintain a moderate attraction torque. At this time, since the average voltage applied to the attraction coil is lower than when applying the battery voltage, the time required for the switch 8 to be turned off and the control section 7 to turn off the transistor 6 and open the contact can be shortened. Since power consumption can be kept low, battery 1
The power consumption can be reduced, and the charging running time can be improved.
以下、本発明の一実施例を第１図〜第５図により説明す
る。An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.
バッテリ１は直流電動機３、モータ電流を検出する電流
検出器１２、電磁開閉器２、さらにパワートランジスタ
１３と直列に接続されている。The battery 1 is connected in series with a DC motor 3, a current detector 12 for detecting motor current, an electromagnetic switch 2, and a power transistor 13.
１１はプラギングダイオード、１０はフリーホイールダ
イオードである。11 is a plugging diode, and 10 is a freewheeling diode.
制御部はマイクロコンピュータ７及び制御プログラムを
記憶しであるメモリ１６、さらにＡ／Ｄ変換器１７で構
成されており、通電電圧制御手段を構成する。マイクロ
コンピュータ７にはＰＲスイッチ８が入力され、電磁開
閉器の吸引用コイル４を制御するトランジスタ６のチョ
ッパ信号と、直流電動機３を制御するパワートランジス
タ１３のチョッパ信号を出力する。電磁開閉器の開閉器
山手段であるＡ／Ｄ変換器１７にはパワートランジスタ
１Ｂの通流率指令となるアクセル１５と。The control section is composed of a microcomputer 7, a memory 16 that stores a control program, and an A/D converter 17, and constitutes an energization voltage control means. A PR switch 8 is input to the microcomputer 7 and outputs a chopper signal of a transistor 6 that controls the attraction coil 4 of the electromagnetic switch and a chopper signal of a power transistor 13 that controls the DC motor 3. The A/D converter 17, which is a switch peak means of an electromagnetic switch, has an accelerator 15 which serves as a conduction rate command for the power transistor 1B.
電流検出器からの電流値が入力されている。The current value from the current detector is input.
次に本実施例の基本動作について第４図の制御プログラ
ムのフローチャートに従って説明する。Next, the basic operation of this embodiment will be explained according to the flowchart of the control program shown in FIG.
ＦＲスイッチ８をオンにすると直ちにトランジスタ６に
オン信号を出力し、吸引用コイル４に電圧が印加されて
電磁開閉！＃２は吸引する。このときバッテリ電圧が出
力され、電磁開閉器２が吸引状態にあることをマイクロ
コンピュータ７が検出する。次にアクセル１５の出力に
応じてチョッパ信号を出力し、増幅器１４を経て、パワ
ートランジスタ１３を駆動し直流電動機が回転する。When the FR switch 8 is turned on, an on signal is immediately output to the transistor 6, voltage is applied to the attraction coil 4, and electromagnetic opening/closing occurs! #2 is suction. At this time, the battery voltage is output, and the microcomputer 7 detects that the electromagnetic switch 2 is in the suction state. Next, a chopper signal is output in accordance with the output of the accelerator 15, passes through the amplifier 14, drives the power transistor 13, and rotates the DC motor.
次に本発明である電磁開閉器２の吸引動作を説明する。Next, the suction operation of the electromagnetic switch 2 according to the present invention will be explained.
フローチャートは第５図に示してあり、これは第４図の
電磁開閉器吸引処理を詳細に説明したものである。ＦＲ
スイッチ８がオンになると、吸引検出信号をチェックし
、開放状態であれば直（６，）
ちに吸引させるためにトランジスタ６をオン状態にして
、吸引コイル４にバッテリ電圧を印加する。A flowchart is shown in FIG. 5, which explains in detail the electromagnetic switch suction process of FIG. 4. F.R.
When the switch 8 is turned on, the attraction detection signal is checked, and if it is in the open state, the transistor 6 is turned on to immediately cause attraction (6,), and battery voltage is applied to the attraction coil 4.
その後、吸引状態が検出されるとトランジスタ６をチョ
ッパ制御する。Thereafter, when the suction state is detected, the transistor 6 is subjected to chopper control.
従って吸引コイルの平均印加電圧は、バッテリ電圧を印
加するのに比べて低くて良いため、制御スイッチをオフ
にして、制御部がトランジスタをオフにし、接点を開放
するに要する時間を短かくできる。Therefore, since the average voltage applied to the attraction coil may be lower than when applying battery voltage, the time required for the control switch to be turned off, the control unit to turn off the transistor, and open the contact can be shortened.
又消費電力も低く抑えることができるため、バッテリの
消費電力も少なくて済み一充電走行時間を向上させるこ
とができ、省エネ、省資源の観点からも有利なものとな
る。Furthermore, since the power consumption can be kept low, the power consumption of the battery is also reduced and the running time per charge can be improved, which is advantageous from the viewpoint of energy saving and resource saving.
本発明によれば、電磁開閉器の吸引時は直流電圧をコイ
ルに印加して吸引時間を短くし、吸引後はチョッパ制御
により吸引コイルの消費電流を低く抑えている。According to the present invention, when the electromagnetic switch is attracted, a DC voltage is applied to the coil to shorten the attraction time, and after attraction, the current consumption of the attraction coil is kept low by chopper control.
これによって、電磁開閉器の吸引特性を損なうことなく
、吸引時の消費電力を低減して、バッチすの−充電稼動
時間の向上を図ると共に、接点の開放時間を短かくする
ことができる。This makes it possible to reduce the power consumption during suction without impairing the suction characteristics of the electromagnetic switch, to improve the battery charging operation time, and to shorten the contact open time.
第１図は本発明の概要を表わす図、第２図は本発明の動
作を示すタイムチャート、第３図は本発明の一実施例を
示す回路図、第４図は本発明の一実施例の基本制御プロ
グラムフローチャート、第５図は本発明の制御プログラ
ムである。
１・・・バッテリ、７・・・通電電圧制御手段（マイク
ロコンピュータ）、２・・・電磁開閉器、４・・・吸引
コイル、１７・・・電磁開閉器の開閉検出手段（Ａ／Ｄ
変換器）。Fig. 1 is a diagram showing an overview of the present invention, Fig. 2 is a time chart showing the operation of the invention, Fig. 3 is a circuit diagram showing an embodiment of the invention, and Fig. 4 is an embodiment of the invention. The basic control program flowchart in FIG. 5 is the control program of the present invention. DESCRIPTION OF SYMBOLS 1...Battery, 7...Electrification voltage control means (microcomputer), 2...Electromagnetic switch, 4...Attraction coil, 17...Opening/closing detection means (A/D) of electromagnetic switch
converter).
Claims (1)
直流電動機と、それらを電磁開閉器を介して接続し、制
御回路を形成してなる電気車制御装置において、前記電
磁開閉器の接点吸引用コイルの通電電圧を制御する制御
手段と、前記電磁開閉器が開閉したことを検出する検出
手段を設け、前記検出手段によつて前記接点が開放状態
にある時は前記制御手段によつて吸引用コイルに一定の
直流電圧を印加し、前記接点が吸引状態にある時は、前
記接点吸引用コイルの通電電圧をチョッパ制御するよう
に構成したことを特徴とする電磁開閉器の制御機能を有
する電気車制御装置。 ２、特許請求の範囲第１項記載において、前記通電電圧
制御手段は、バッテリ電圧に応じた通流率によつてチョ
ッパ制御することを特徴とする電磁開閉器の制御機能を
有する電気車制御装置。 ３、特許請求の範囲第１項記載において、前記電磁開閉
器の接点吸引時は、前記制御手段が一定時間のみ接点吸
引用コイルに一定電圧を印加し、一定時間経過後チョッ
パ制御するよう構成したことを特徴とする電磁開閉器の
制御機能を有する電気車制御装置。[Claims] 1. An electric vehicle control device comprising a battery, a DC motor powered and driven by the battery, and a control circuit formed by connecting these via an electromagnetic switch, wherein the electromagnetic switch a control means for controlling the energizing voltage of a contact attracting coil of the device, and a detection means for detecting that the electromagnetic switch is opened or closed, and when the contact is in an open state by the detection means, the control means A constant DC voltage is applied to the attraction coil by the contact attraction coil, and when the contact is in the attraction state, the energizing voltage of the contact attraction coil is subjected to chopper control. Electric vehicle control device with control function. 2. An electric vehicle control device having a control function of an electromagnetic switch, as set forth in claim 1, wherein the energization voltage control means performs chopper control using a energization rate according to a battery voltage. . 3. In claim 1, when the contact of the electromagnetic switch is attracted, the control means applies a constant voltage to the contact attraction coil only for a certain period of time, and after a certain period of time, it is configured to perform chopper control. An electric vehicle control device having an electromagnetic switch control function, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61052511A JPS62210809A (en) | 1986-03-12 | 1986-03-12 | Electric rolling stock controller having controlling function of electromagnetic switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61052511A JPS62210809A (en) | 1986-03-12 | 1986-03-12 | Electric rolling stock controller having controlling function of electromagnetic switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62210809A true JPS62210809A (en) | 1987-09-16 |
Family
ID=12916758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61052511A Pending JPS62210809A (en) | 1986-03-12 | 1986-03-12 | Electric rolling stock controller having controlling function of electromagnetic switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62210809A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5818316B1 (en) * | 1976-11-20 | 1983-04-12 | Tadano Tekkosho Kk |
-
1986
- 1986-03-12 JP JP61052511A patent/JPS62210809A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5818316B1 (en) * | 1976-11-20 | 1983-04-12 | Tadano Tekkosho Kk |
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