JPH06133401A - Power source device for electrical equipment of electric motor car - Google Patents

Power source device for electrical equipment of electric motor car

Info

Publication number
JPH06133401A
JPH06133401A JP4302970A JP30297092A JPH06133401A JP H06133401 A JPH06133401 A JP H06133401A JP 4302970 A JP4302970 A JP 4302970A JP 30297092 A JP30297092 A JP 30297092A JP H06133401 A JPH06133401 A JP H06133401A
Authority
JP
Japan
Prior art keywords
converter
secondary battery
power source
voltage
electric
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
Application number
JP4302970A
Other languages
Japanese (ja)
Inventor
Hisayoshi Hiraiwa
久佳 平岩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
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 by Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP4302970A priority Critical patent/JPH06133401A/en
Publication of JPH06133401A publication Critical patent/JPH06133401A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/12Electric charging stations

Landscapes

  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

PURPOSE:To reduce the capacity of a DC-to-DC converter and miniaturize the DC-to-DC converter by connecting a secondary battery in parallel between the DC-to-DC converter and an electrical equipment. CONSTITUTION:When main switches 50A, 50B are turned on, a DC-to-DC converter 46 is operated, and electrical-equipment driving voltage (12V) is generated. A secondary battery 54 is charged by an output from the DC-to-DC converter 46. On the other hand, all electrical equipments 48 are hardly operated simultaneously. Consequently, the capacity of the DC-to-DC converter 46 is set so that a continuously operated part such as a headlamp 48c and a tail lamp 48a, can be supplied with currents with a slight allowance. When discontinuously used brake lamp 48a, and buzzer 48b are employed and the currents of the DC-to-DC converter 46 are in short supply, the currents of the shortage section of the converter 46 are supplied from the secondary battery 54. Accordingly, the capacity of the DC-to-DC converter 46 can be reduced and the converter 46 miniaturized by using the secondary battery 54.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、走行用電動モータの電
源を利用して電装品を駆動するための電動車両の電装品
用電源装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device for an electric component of an electric vehicle for driving an electric component by using a power source of a traveling electric motor.

【0002】[0002]

【従来の技術】走行用電動モータの電源電圧より低い電
圧で駆動される電装品、例えばホーン、ストップラン
プ、前照灯などを有する電動車両がある。この場合に、
前記走行用の電源電圧をDC−DCコンバータで降圧し
て電装品の電源とすることが考えられている。
2. Description of the Related Art There are electric vehicles having electric components driven by a voltage lower than a power supply voltage of a traveling electric motor, such as a horn, a stop lamp, and a headlight. In this case,
It is considered that the driving power supply voltage is stepped down by a DC-DC converter to be used as a power supply for electrical equipment.

【0003】ここに電装品にはホーンやストップランプ
のように瞬間的あるいは極く短時間だけ作動されるもの
がある。従来はこの種の電装品が全て同時に作動する時
に対応できるように電装品用のDC−DCコンバータの
容量を設定していた。
Here, there are some electric components such as a horn and a stop lamp which are operated instantaneously or for an extremely short time. Conventionally, the capacity of the DC-DC converter for electrical equipment has been set so as to be able to handle all of this type of electrical equipment operating simultaneously.

【0004】[0004]

【従来技術の問題点】このため大容量のDC−DCコン
バータを用いる必要が生じ、このDC−DCコンバータ
が大型化し高価にもなるという問題があった。
Therefore, it is necessary to use a large capacity DC-DC converter, which causes a problem that the DC-DC converter becomes large and expensive.

【0005】[0005]

【発明の目的】本発明はこのような事情に鑑みなされた
ものであり、走行用電源を電装品用の電源として利用
し、走行用電源の電圧をDC−DCコンバータにより電
装品用電圧に変圧する場合に、このDC−DCコンバー
タの小容量化と、小型化を図り、安価にもすることがで
きるようにした電動車両の電装品用電源装置を提供する
ことを目的とする。
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and utilizes a traveling power source as a power source for electrical components, and transforms the voltage of the traveling power source into a voltage for electrical components by a DC-DC converter. In this case, it is an object of the present invention to provide a power supply device for electric components of an electric vehicle, which can reduce the capacity and size of the DC-DC converter and can reduce the cost.

【0006】[0006]

【発明の構成】本発明によればこの目的は、走行用電動
モータの電源電圧と異なる電圧で駆動される電装品を有
する電動車両において、前記電動モータの電源を前記電
装品の駆動電圧に変換するDC−DCコンバータと、こ
のDC−DCコンバータと前記電装品との間に並列接続
された二次電池とを有することを特徴とする電動車両の
電装品用電源装置により達成される。
According to the present invention, an object of the present invention is to convert an electric power source of the electric motor into a drive voltage of the electric component in an electric vehicle having an electric component driven at a voltage different from the power supply voltage of the traveling electric motor. And a secondary battery that is connected in parallel between the DC-DC converter and the electrical component, and a power supply device for an electrical component of an electric vehicle.

【0007】[0007]

【実施例】図1は本発明の一実施例の回路構成図、図2
はこの実施例を適用した2輪スクータの斜視図、図3は
走行用電源の電池の結線状況を示す斜視図である。
1 is a circuit diagram of an embodiment of the present invention, FIG.
FIG. 3 is a perspective view of a two-wheel scooter to which this embodiment is applied, and FIG. 3 is a perspective view showing a battery connection state of a traveling power source.

【0008】図1、2において符号10は動力ユニット
であり、永久磁石同期モータ12と伝動ケース14とを
一体に形成し、伝動ケース14の後端に駆動後輪16を
保持したものである。この動力ユニット10の前端は車
体フレームに上下揺動自在に軸支され、伝動ケース14
の後部は緩衝器18(図2)により弾性支持されてい
る。伝動ケース14内にはVベルト式無段変速機20が
収容され、モータ12の回転出力はこの変速機20によ
り走行負荷に応じて減速比が自動的に制御されて後輪1
6に伝えられる。
In FIGS. 1 and 2, reference numeral 10 is a power unit in which a permanent magnet synchronous motor 12 and a transmission case 14 are integrally formed, and a drive rear wheel 16 is held at the rear end of the transmission case 14. The front end of the power unit 10 is pivotally supported by the body frame so as to be vertically swingable,
The rear part is elastically supported by a shock absorber 18 (FIG. 2). A V-belt type continuously variable transmission 20 is accommodated in the transmission case 14, and the rotation output of the motor 12 is automatically controlled by the transmission 20 in accordance with the traveling load to reduce the rear gear ratio.
6.

【0009】図2において22は運転シート、24はこ
の運転シート22の下に配設されたコントローラ、26
は足置台、28はこの足置台26の下に収容された走行
用の電源である。この電源28は、例えば鉛−酸電池な
どの充電可能な4個の二次電池30a〜30dを直列接
続し、48Vの電圧を得るように構成される。
In FIG. 2, reference numeral 22 is an operating seat, 24 is a controller disposed under the operating seat 22, and 26 is a controller.
Is a footrest, and 28 is a traveling power source housed under the footrest 26. The power supply 28 is configured to connect four rechargeable secondary batteries 30a to 30d such as lead-acid batteries in series to obtain a voltage of 48V.

【0010】すなわち足置台26には下方から着脱可能
な電池ケース32が取付けられ、この電池ケース32に
左右2個づつ電池30a、bと30c、dとが収容され
る。ここに各30a〜dの底面にはリボン34が接着さ
れ、このリボン34の両端が、電池ケース32に収納し
た状態で各電池30a〜dの両側面から上方へ突出して
いる。このためリボン34を握むことにより電池30a
〜dを電池ケース32から容易に出し入れできるように
している。なお電池ケース32は足置台26の上面に設
けた蓋を開いてリボン34により上方へ出し入れするよ
うにしてもよい。
That is, a battery case 32 which is attachable and detachable from below is attached to the footrest 26, and two left and right batteries 30a, 30b and 30c are accommodated in the battery case 32. A ribbon 34 is adhered to the bottom surface of each of the batteries 30a to 30d, and both ends of the ribbon 34 project upward from both side surfaces of each of the batteries 30a to 30d when housed in the battery case 32. Therefore, by gripping the ribbon 34, the battery 30a
It is made possible to easily put in and take out ~ d from the battery case 32. The battery case 32 may be opened and closed by a ribbon 34 by opening a lid provided on the upper surface of the footrest 26.

【0011】図2で36は前輪、38は操向ハンドルバ
ーであり、この操向ハンドルバー38の右側のグリップ
40はスロットルグリップとなっている。このグリップ
40のスロットル開度θTHはポテンショメータ(図示せ
ず)などで検出され、前記コントローラ24に入力され
る。なおこのコントローラ24には前記モータ12の回
転角度θを検出するためのロータリーエンコーダ42の
出力信号も入力される。
In FIG. 2, reference numeral 36 is a front wheel, 38 is a steering handlebar, and a grip 40 on the right side of the steering handlebar 38 is a throttle grip. The throttle opening θ TH of the grip 40 is detected by a potentiometer (not shown) or the like and input to the controller 24. An output signal of the rotary encoder 42 for detecting the rotation angle θ of the motor 12 is also input to the controller 24.

【0012】コントローラ24はメインリレー44を介
して電源28に接続され、グリップ40のスロットル開
度θTHに応じてモータ12の出力を制御する。ここにモ
ータ12は永久磁石を固着したロータと、3相電機子巻
線とを持ち、コントローラ24によりベクトル制御され
る。すなわちこのコントローラ24はインバータや3相
2相変換器等を備え、スロットル開度θTHに対応して電
機子巻線の各相に印加すべき電圧と位相とを演算により
求め、各相に加わる電圧を高速でオン・オフすることに
より所定の電圧と位相に制御するものである。
The controller 24 is connected to the power source 28 via the main relay 44, and controls the output of the motor 12 according to the throttle opening θ TH of the grip 40. The motor 12 has a rotor having a permanent magnet fixed thereto and a three-phase armature winding, and is vector-controlled by the controller 24. That is, the controller 24 includes an inverter, a three-phase / two-phase converter, etc., calculates the voltage and the phase to be applied to each phase of the armature winding in accordance with the throttle opening θ TH , and adds it to each phase. The voltage is controlled to a predetermined voltage and phase by turning the voltage on and off at high speed.

【0013】46はDC−DCコンバータであり、電源
28と電装品群48との間に介在する。なお電源28と
コンバータ46との間にはメインスイッチ50Aが介在
し、コンバータ46と電装品群48との間にはメインス
イッチ50Bが介在する。両メインスイッチ50Aと5
0Bとは連動して同時にオン・オフする。ここに電装品
群48は、テール/ストップランプ48a、ホーン48
b、ヘッドランプ48cなど種々の電装品を含み、それ
ぞれが別々のスイッチ52a〜dによりオン・オフされ
る。
Reference numeral 46 denotes a DC-DC converter, which is interposed between the power source 28 and the electrical component group 48. A main switch 50A is interposed between the power supply 28 and the converter 46, and a main switch 50B is interposed between the converter 46 and the electrical component group 48. Both main switches 50A and 5
Turns on and off simultaneously with 0B. The electrical equipment group 48 includes a tail / stop lamp 48a and a horn 48.
b, headlamp 48c, and various other electrical components, each of which is turned on / off by a separate switch 52a-d.

【0014】これらの電装品群48を構成する電装品
は、走行用電源28よりも低い電圧、例えば直流12V
で駆動されるものであり、コンバータ46は電源28の
電圧(48V)をこの電装品駆動電圧(12V)に降圧
するものである。ここにコンバータ46の出力端間に
は、比較的小容量の二次電池54例えば鉛−酸電池が並
列接続されている。この電池54は電装品駆動電圧(1
2V)の端子電圧を持つ。
The electrical components constituting the electrical component group 48 have a voltage lower than that of the traveling power source 28, for example, DC 12V.
The converter 46 lowers the voltage (48V) of the power supply 28 to the electric component drive voltage (12V). A relatively small capacity secondary battery 54, for example, a lead-acid battery is connected in parallel between the output terminals of the converter 46. This battery 54 has a driving voltage (1
2V) terminal voltage.

【0015】56は車体に搭載された充電器であり、家
庭用交流商用電源(100V)を用いて走行用電源28
を充電する。すなわち、コンセント58から導かれる交
流は全波整流器60により全波整流されかつ定電流・定
電圧制御されて電源28に導かれる。なおこの充電器5
6は常閉接点を有する電磁リレー62を内蔵し、充電中
には前記メインリレー44をオフにしてモータ12が作
動するのを防止している。
Reference numeral 56 denotes a charger mounted on the vehicle body, which uses a household AC commercial power source (100V) to drive the running power source 28.
To charge. That is, the alternating current introduced from the outlet 58 is full-wave rectified by the full-wave rectifier 60 and subjected to constant current / constant voltage control and then introduced to the power supply 28. This charger 5
6 has a built-in electromagnetic relay 62 having a normally closed contact, and turns off the main relay 44 during charging to prevent the motor 12 from operating.

【0016】このリレー62の接点は、前記電装品群4
8の正電圧をメインリレー44のコイル44aの一端に
導く配線の途中に介在しメインリレー44をオン・オフ
する。なおコイル44aの他端は接地されている。リレ
ー62は充電時にコンセント58から導かれる交流で励
磁されて、その常閉接点を開路する。するとメインリレ
ー44のコイル44aが非励磁となりリレー44が開路
する。この結果モータ12の作動が禁止されるものであ
る。なお非充電中はリレー62の接点は閉路しているか
ら、メインスイッチ50A、50Bをオンにすることに
よりメインリレー44が閉路しモータ12は作動可能に
なる。
The contacts of the relay 62 are the same as the electrical equipment group 4
The positive voltage of No. 8 is interposed in the middle of the wiring for guiding one end of the coil 44a of the main relay 44 to turn on / off the main relay 44. The other end of the coil 44a is grounded. The relay 62 is excited by the alternating current introduced from the outlet 58 during charging and opens its normally closed contact. Then, the coil 44a of the main relay 44 becomes non-excited and the relay 44 opens. As a result, the operation of the motor 12 is prohibited. Since the contact of the relay 62 is closed during non-charging, the main relay 44 is closed and the motor 12 is operable by turning on the main switches 50A and 50B.

【0017】メインスイッチ50A、50Bがオンの時
にはDC−DCコンバータ46が作動し、その出力端子
間に電装品駆動電圧(12V)を発生する。従って二次
電池54はこのDC−DCコンバータ46の出力により
充電される。一方電装品群48のそれぞれの電装品48
a、48b、48cは全てが同時に作動される機会は少
ない。従ってDC−DCコンバータ46は、ヘッドラン
プ48cやテールランプ48a1 のように連続作動され
るものに対して僅かな余裕をもって電流を供給できるよ
うに容量に設定されている。
When the main switches 50A and 50B are on, the DC-DC converter 46 operates to generate an electric component drive voltage (12V) between its output terminals. Therefore, the secondary battery 54 is charged by the output of the DC-DC converter 46. On the other hand, each electric component 48 of the electric component group 48
It is unlikely that all of a, 48b, and 48c are activated at the same time. Therefore, the DC-DC converter 46 is set to have a capacity such that it can supply the current with a slight margin to the head lamp 48c and the tail lamp 48a 1 which are continuously operated.

【0018】そして不連続に使用されるブレーキランプ
48a2 やブザー48bが使用されてDC−DCコンバ
ータ46の電流が不足する時には、二次電池54からそ
の不足分の電流が供給される。このように二次電池54
を用いることにより、DC−DCコンバータ46を小容
量かつ小型のものにでき、安価にもなる。またテールラ
ンプ48a1 やヘッドランプ48cがオフであったり、
ブレーキランプ48aやブザー48bが不作動中にはD
C−DCコンバータ46の出力に余裕があるので、DC
−DCコンバータ46により二次電池54が充電され
る。
When the brake lamp 48a 2 or the buzzer 48b used discontinuously is used and the current of the DC-DC converter 46 becomes insufficient, the secondary battery 54 supplies the insufficient current. In this way, the secondary battery 54
By using, the DC-DC converter 46 can have a small capacity and a small size, and the cost can be reduced. In addition, the tail lamp 48a 1 and the head lamp 48c are off,
When the brake lamp 48a and the buzzer 48b are not operating, D
Since the output of the C-DC converter 46 has a margin, DC
The secondary battery 54 is charged by the DC converter 46.

【0019】[0019]

【発明の効果】本発明は以上のように、走行用電源の電
圧をDC−DCコンバータで電装品の駆動電圧に変換し
て電装品を駆動する場合に、このDC−DCコンバータ
と電装品との間に二次電池を並列に接続したものである
から、DC−DCコンバータは連続的に作動する電装品
に対して僅かな余裕をもつ容量に設定すれば足り、DC
−DCコンバータを小容量化し、小型化することができ
る。また安価にもなる。
As described above, according to the present invention, when the driving power source voltage is converted by the DC-DC converter into the drive voltage of the electric component to drive the electric component, the DC-DC converter and the electric component are Since a secondary battery is connected in parallel between the DC and DC converters, it is sufficient to set the DC-DC converter to a capacity with a slight margin for continuously operating electrical equipment.
-Capacity and size of the DC converter can be reduced. It will also be cheaper.

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

【図1】本発明の一実施例側の回路構成図FIG. 1 is a circuit configuration diagram of an embodiment of the present invention.

【図2】この実施例を適用した2輪スクータの斜視図FIG. 2 is a perspective view of a two-wheel scooter to which this embodiment is applied.

【図3】走行用電源電池の結線状況を示す斜視図FIG. 3 is a perspective view showing a connection state of a power supply battery for traveling.

【符号の説明】[Explanation of symbols]

12 電動モータ 24 コントローラ 28 走行用電源 30a〜d 電池 46 DC−DCコンバータ 48 電装品群 54 二次電池 12 electric motor 24 controller 28 running power supply 30a-d battery 46 DC-DC converter 48 electrical equipment group 54 secondary battery

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 走行用電動モータの電源電圧と異なる電
圧で駆動される電装品を有する電動車両において、前記
電動モータの電源を前記電装品の駆動電圧に変換するD
C−DCコンバータと、このDC−DCコンバータと前
記電装品との間に並列接続された二次電池とを有するこ
とを特徴とする電動車両の電装品用電源装置。
1. An electric vehicle having an electric component that is driven at a voltage different from a power supply voltage of a traveling electric motor, the D converting the power source of the electric motor to a drive voltage of the electric component.
A power supply device for an electric component of an electric vehicle, comprising: a C-DC converter; and a secondary battery connected in parallel between the DC-DC converter and the electric component.
JP4302970A 1992-10-15 1992-10-15 Power source device for electrical equipment of electric motor car Pending JPH06133401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4302970A JPH06133401A (en) 1992-10-15 1992-10-15 Power source device for electrical equipment of electric motor car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4302970A JPH06133401A (en) 1992-10-15 1992-10-15 Power source device for electrical equipment of electric motor car

Publications (1)

Publication Number Publication Date
JPH06133401A true JPH06133401A (en) 1994-05-13

Family

ID=17915359

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4302970A Pending JPH06133401A (en) 1992-10-15 1992-10-15 Power source device for electrical equipment of electric motor car

Country Status (1)

Country Link
JP (1) JPH06133401A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2742707A1 (en) * 1995-12-21 1997-06-27 Honda Motor Co Ltd DC to DC converter with fuses for electric vehicle
US5793189A (en) * 1995-06-14 1998-08-11 Honda Giken Kogyo Kabushiki Kaisha Apparatus for preventing over-discharge of batteries used in an electric vehicle
JP2010172137A (en) * 2009-01-23 2010-08-05 Nissan Motor Co Ltd Charge controller of hybrid vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5793189A (en) * 1995-06-14 1998-08-11 Honda Giken Kogyo Kabushiki Kaisha Apparatus for preventing over-discharge of batteries used in an electric vehicle
FR2742707A1 (en) * 1995-12-21 1997-06-27 Honda Motor Co Ltd DC to DC converter with fuses for electric vehicle
US5757624A (en) * 1995-12-21 1998-05-26 Honda Giken Kogyo Kabushiki Kaisha DC-DC converter unit
JP2010172137A (en) * 2009-01-23 2010-08-05 Nissan Motor Co Ltd Charge controller of hybrid vehicle

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