JPH09226664A - Electric motor assisted bicycle - Google Patents
Electric motor assisted bicycleInfo
- Publication number
- JPH09226664A JPH09226664A JP8034668A JP3466896A JPH09226664A JP H09226664 A JPH09226664 A JP H09226664A JP 8034668 A JP8034668 A JP 8034668A JP 3466896 A JP3466896 A JP 3466896A JP H09226664 A JPH09226664 A JP H09226664A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- power
- batteries
- assisted bicycle
- user
- 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
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000004397 blinking Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ライダーの踏力を
パワーユニットによる補助動力によって補う電動自転車
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric bicycle that supplements the pedal effort of a rider with auxiliary power from a power unit.
【０００２】[0002]
【従来の技術】バッテリ、パワーユニット及びコントロ
ーラを車体に搭載し、ライダーの踏力を検出してその大
きさに見合う補助動力を踏力に付加してライダーの肉体
的負担を軽減する電動補助自転車が提案され、既に実用
に供されている。2. Description of the Related Art An electric power-assisted bicycle has been proposed in which a battery, a power unit, and a controller are mounted on a vehicle body, and a rider's pedaling force is detected and auxiliary power commensurate with its size is added to the pedaling force to reduce the physical load on the rider. , Has already been put to practical use.
【０００３】斯かる電動補助自転車において前記パワー
ユニットとコントローラに給電するバッテリは、充電時
の脱着の便を考慮して一般にはパワーユニット及びコン
トローラとは別に取り付けられている。In such an electric power assisted bicycle, the battery for supplying power to the power unit and the controller is generally attached separately from the power unit and the controller in consideration of the convenience of attachment / detachment during charging.
【０００４】ところで、バッテリに対する要求性能はユ
ーザーによって様々であり、用途に応じて別々の仕様の
ものが必要となってくる。例えば、大型で高重量の長距
離用大容量タイプや小型で軽量な短距離用小容量タイプ
のバッテリが必要となってくる。By the way, the performance required for the battery varies depending on the user, and it is necessary to have different specifications according to the application. For example, a large-sized, heavy-weight, long-distance, large-capacity type battery and a small, lightweight, short-distance, small-capacity type battery are required.
【０００５】[0005]
【発明が解決しようとする課題】ところが、用途に応じ
てそれぞれ別々のバッテリを製造すると、ケースの型代
等が別に必要となり、製品価格の上昇を招いてしまう。However, if different batteries are manufactured according to the intended use, the mold cost of the case is additionally required, and the product price is increased.
【０００６】又、ユーザーがその時々の用途に合わせて
バッテリを自由に選択できるようにすると、仕様の異な
る複数のバッテリを購入しなければならず、ユーザーに
大きな経済的負担を強いることとなる。Further, if the user can freely select the battery according to the occasional use, it is necessary to purchase a plurality of batteries having different specifications, which imposes a heavy economic burden on the user.
【０００７】本発明は上記問題に鑑みてなされたもの
で、その目的とする処は、ユーザーが用途に応じてバッ
テリ容量を簡単に選択することができるとともに、ユー
ザーに大きな経済的負担を強いることのない電動補助自
転車を提供することにある。The present invention has been made in view of the above problems, and its object is to allow the user to easily select the battery capacity according to the application and to impose a heavy economic burden on the user. It is to provide a power-assisted bicycle that does not.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、請求項１記載の発明は、バッテリ、パワーユニット
及びコントローラを車体に搭載し、ライダーの踏力をパ
ワーユニットによる補助動力によって補う電動補助自転
車において、同一仕様で同一寸法・形状のバッテリを複
数搭載可能とし、各バッテリの残量を常時検出して何れ
か１つのバッテリを選択して使用するバッテリ切換手段
を設けたことを特徴とする。In order to achieve the above object, an invention according to claim 1 is an electric assisted bicycle in which a battery, a power unit and a controller are mounted on a vehicle body, and a pedaling force of a rider is supplemented by an auxiliary power from the power unit. It is characterized in that a plurality of batteries having the same specifications and the same size and shape can be mounted, and a battery switching means for constantly detecting the remaining amount of each battery and selecting and using any one battery is provided.
【０００９】請求項２記載の発明は、請求項１記載の発
明において、前記バッテリ切換手段は、使用中のバッテ
リが切換時期に達した際には補助動力要求値が設定値以
下であるときに補助動力の供給を瞬間的に停止してバッ
テリの切り換えを行うものとしたことを特徴とする。According to a second aspect of the present invention, in the first aspect of the present invention, the battery switching means is such that the auxiliary power request value is equal to or less than a set value when the battery in use reaches the switching time. It is characterized in that the supply of auxiliary power is momentarily stopped to switch the battery.
【００１０】請求項３記載の発明は、請求項１又は２記
載の発明において、前記バッテリから前記コントローラ
を経て前記パワーユニットに至る駆動電力供給ラインと
は別に、各バッテリからのコントローラ電源ラインをそ
れぞれ設け、各電源ラインをダイオードを介して並列に
接続したことを特徴とする。According to a third aspect of the present invention, in the first or second aspect of the invention, a controller power supply line from each battery is provided separately from a drive power supply line from the battery to the controller to the power unit. , Each power supply line is connected in parallel via a diode.
【００１１】請求項４記載の発明は、請求項１，２又は
３記載の発明において、前記バッテリ切換手段に含まれ
るバッテリ切換用リレーを、電源を切っても直前の状態
を保持する有極リレーで構成したことを特徴とする。According to a fourth aspect of the present invention, in the first, second or third aspect of the present invention, the battery switching relay included in the battery switching means is a polar relay that maintains the immediately preceding state even when the power is turned off. It is characterized in that it is configured with.
【００１２】請求項５記載の発明は、請求項１，２，３
又は４記載の発明において、前記複数のバッテリを車体
前後方向に並設したことを特徴とする。The invention according to claim 5 is the invention as claimed in claims 1, 2, and 3.
Alternatively, in the invention described in 4, the plurality of batteries are arranged side by side in the longitudinal direction of the vehicle body.
【００１３】従って、請求項１記載の発明によれば、ユ
ーザーは車体に搭載すべきバッテリの数を選択すること
によって走行距離や積荷の大小等に応じてバッテリ容量
を簡単に選択することができるとともに、同一仕様で同
一寸法・形状のバッテリを複数用意しておけば足りるた
め、ユーザーの経済的負担が軽減される。又、バッテリ
を車体から取り外して充電するときには、使用したバッ
テリのみを運搬すれば済むため、ユーザーの肉体的負担
も軽減される。Therefore, according to the first aspect of the invention, the user can easily select the battery capacity according to the traveling distance and the size of the load by selecting the number of batteries to be mounted on the vehicle body. At the same time, it suffices to prepare a plurality of batteries having the same specifications and the same size and shape, which reduces the financial burden on the user. Further, when the battery is removed from the vehicle body and charged, only the used battery needs to be carried, and the physical burden on the user is also reduced.
【００１４】請求項２記載の発明によれば、バッテリの
切り換えはライダーの踏力が小さくて補助動力要求値も
小さいときに瞬間的になされるため、大きな補助動力が
供給されているときに行う場合に比してライダーへのシ
ョックが小さく抑えられる。According to the second aspect of the present invention, the battery is switched instantaneously when the pedaling force of the rider is small and the auxiliary power demand value is also small. Therefore, when the large auxiliary power is supplied. The shock to the rider can be reduced compared to.
【００１５】請求項３記載の発明によれば、電源スイッ
チ投入時にバッテリが装着されていない側にリレー接点
が閉じていた場合の無電源状態やバッテリ切換時の回路
オープンによるコントローラのリセットが避けられる。According to the third aspect of the present invention, it is possible to avoid resetting the controller due to a no-power condition or a circuit open at the time of battery switching when the relay contact is closed on the side where the battery is not mounted when the power switch is turned on. .
【００１６】請求項４記載の発明によれば、バッテリ切
換用リレーが有極リレーによって構成されるため、切換
時に一瞬電力が必要なだけとなり、リレーによる電力消
費量が低く抑えられる。According to the fourth aspect of the invention, since the battery switching relay is composed of a polarized relay, only a momentary electric power is required at the time of switching, and the power consumption by the relay can be suppressed low.
【００１７】請求項５記載の発明によれば、バッテリの
数に拘らず車体重心の左右方向の変化がなく、自転車に
高い操縦安定性が確保される。According to the fifth aspect of the present invention, regardless of the number of batteries, there is no change in the center of gravity of the vehicle in the left-right direction, and high steering stability of the bicycle is ensured.
【００１８】[0018]
【発明の実施の形態】以下に本発明の実施の形態を添付
図面に基づいて説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１９】先ず、本発明に係る電動補助自転車１の概
略構成を図１及び図２に基づいて説明する。尚、図１は
本発明に係る電動補助自転車１の側面図、図２は図１の
Ｘ−Ｘ線拡大断面図（バッテリ収容部断面図）である。First, a schematic structure of the power-assisted bicycle 1 according to the present invention will be described with reference to FIGS. 1 and 2. 1 is a side view of the electric assisted bicycle 1 according to the present invention, and FIG. 2 is an enlarged sectional view taken along line XX of FIG. 1 (battery accommodating section sectional view).
【００２０】図１において、２は車体前方に位置するヘ
ッドパイプであり、該ヘッドパイプ２にはハンドルステ
ム３が回動自在に挿通している。そして、ハンドルステ
ム３の上端にはハンドル４が結着され、同ハンドルステ
ム３の下端にはフロントフォーク５が結着されており、
該フロントフォーク５の下端部には前輪６が回転自在に
軸支されている。In FIG. 1, reference numeral 2 is a head pipe located in front of the vehicle body, and a handle stem 3 is rotatably inserted through the head pipe 2. A handle 4 is attached to the upper end of the handle stem 3, and a front fork 5 is attached to the lower end of the handle stem 3.
A front wheel 6 is rotatably supported at the lower end of the front fork 5.
【００２１】又、前記ヘッドパイプ２からはダウンチュ
ーブ７が車体後方（図１の右方）に向かって斜め下方に
延出しており、該ダウンチューブ７の後端部にはシート
チューブ８が車体後方に向かって斜め上方に立設される
とともに、車体後方に向かって延在する１本の中間パイ
プ９が接続されている。そして、シートチューブ８内に
はシートポスト１０が上下動自在に嵌合保持されてお
り、該シートポスト１０の上端にはシート１１が支持さ
れている。A down tube 7 extends obliquely downward from the head pipe 2 toward the rear (right side in FIG. 1) of the vehicle body, and a seat tube 8 is provided at the rear end of the down tube 7 to the vehicle body. A single intermediate pipe 9 is connected to extend vertically rearward and extend rearward of the vehicle body. A seat post 10 is vertically movably fitted and held in the seat tube 8, and a seat 11 is supported on an upper end of the seat post 10.
【００２２】ところで、車体の略中央下部には、パワー
ユニット１２がダウンチューブ７と中間パイプ９に吊下
支持されており、ダウンチューブ７の前記パワーユニッ
ト１１の車体前方位置にはコントローラ１３が吊下支持
されている。By the way, a power unit 12 is suspended and supported by a down tube 7 and an intermediate pipe 9 at a substantially central lower portion of the vehicle body, and a controller 13 is suspended and supported at a position of the down tube 7 in front of the power unit 11 on the vehicle body. Has been done.
【００２３】上記パワーユニット１２はライダーの踏力
を検出してそれに見合う補助動力を発生するものであっ
て、これは踏力検出手段１４と電動モータ１５を含んで
構成されている。そして、このパワーユニット１２には
クランク軸１６が回転自在に支承されており、該クラン
ク軸１６の左右にはクランク１７が取り付けられ、各ク
ランク１７の端部にはペダル１８が軸支されている。The power unit 12 detects the pedaling force of the rider and generates auxiliary power commensurate with the pedaling force, which comprises a pedaling force detecting means 14 and an electric motor 15. A crankshaft 16 is rotatably supported by the power unit 12, cranks 17 are attached to the left and right of the crankshaft 16, and pedals 18 are pivotally supported at the ends of the cranks 17.
【００２４】他方、前記中間パイプ９の後端に固着され
た車幅方向に延在するクロスパイプ２２には、車体後方
に向かって延設された左右一対のチェーンステイ１９が
接続されており、該チェーンステイ１９の後端部と前記
シートチューブ８の上端部とは左右一対のシートステイ
２０によって連結されている。そして、チェーンステイ
１９後端の前記シートステイ２０との連結部には後輪２
１が回転自在に軸支されており、後輪２１にはホイール
スプロケット２３が結着されている。尚、ホイールスプ
ロケット２３と前記パワーユニット１２に設けられた不
図示のドライブスプロケットの間には無端状のチェーン
２４が巻装されている。On the other hand, a pair of left and right chain stays 19 extending toward the rear of the vehicle body are connected to a cross pipe 22 fixed to the rear end of the intermediate pipe 9 and extending in the vehicle width direction. The rear end of the chain stay 19 and the upper end of the seat tube 8 are connected by a pair of left and right seat stays 20. The rear wheel 2 is provided at the connecting portion of the chain stay 19 at the rear end with the seat stay 20.
1 is rotatably supported, and a wheel sprocket 23 is attached to the rear wheel 21. An endless chain 24 is wound between the wheel sprocket 23 and a drive sprocket (not shown) provided on the power unit 12.
【００２５】而して、本実施の形態に係る電動補助自転
車１においては、シート１１の下方であって、且つ、シ
ートチューブ８と後輪２１の間の空間にはバッテリボッ
クス２５が３点ａ，ｂ，ｃで支持されて設置されてお
り、該バッテリボックス２５内には、図２にも示すよう
に、同一仕様で同一寸法・形状の四角柱状の２つのバッ
テリＡ，Ｂが車体前後方向に並べて収納されている。
尚、バッテリボックス２５の上部は開口しており、この
開口部はヒンジ２６を中心に回動して開閉する蓋部材２
５ａによって覆われている。Thus, in the power-assisted bicycle 1 according to the present embodiment, the battery box 25 has three points a in the space below the seat 11 and between the seat tube 8 and the rear wheel 21. , B, c are installed in the battery box 25. As shown in FIG. 2, two rectangular prism-shaped batteries A and B having the same specifications and the same size and shape are provided in the vehicle front-rear direction. It is stored side by side.
The upper portion of the battery box 25 is open, and the opening is rotated around the hinge 26 to open and close the lid member 2.
It is covered by 5a.
【００２６】ところで、本実施の形態に係る電動補助自
転車１にはユーザーの用途（例えば、走行距離や積荷の
大小）に応じてバッテリ容量を選択することができ、走
行距離や積荷が大きくて大容量を必要とする場合には図
示のようにバッテリボックス２５内に２つのバッテリ
Ａ，Ｂを収納し、逆に走行距離や積荷が小さくて小容量
で済む場合にはバッテリボックス２５内にはバッテリ
Ａ，Ｂの何れか一方を収納することができる。そして、
本実施の形態のように２つのバッテリＡ，Ｂをバッテリ
ボックス２５内に収納した場合には、各バッテリＡ，Ｂ
の残量が常時検出され、使用中のバッテリＡ（Ｂ）が切
換時期に達した際には、補助動力要求値が設定値以下で
あるときに補助動力の供給を瞬間的に停止してバッテリ
Ａ（Ｂ）からバッテリＢ（Ａ）への切り換えが自動的に
行われる。By the way, the battery capacity of the power-assisted bicycle 1 according to the present embodiment can be selected according to the user's application (for example, mileage and size of load), and the mileage and load are large and large. When the capacity is required, the two batteries A and B are housed in the battery box 25 as shown in the figure. Conversely, when the traveling distance and the load are small and the capacity is small, the battery is stored in the battery box 25. Either A or B can be stored. And
When the two batteries A and B are housed in the battery box 25 as in this embodiment, each of the batteries A and B is
When the battery A (B) in use reaches the switching timing, the supply of auxiliary power is momentarily stopped and the battery is stopped by the auxiliary power request value being less than or equal to the set value. Switching from A (B) to battery B (A) is automatically performed.
【００２７】ここで、給電系の電気回路を図３に基づい
て説明する。Here, the electric circuit of the power feeding system will be described with reference to FIG.
【００２８】即ち、図３は給電系の電気回路図であり、
同図中、Ａ，Ｂはバッテリ、１３は前記コントローラ、
１５は前記電動モータであり、コントローラ１３には、
前記踏力検出手段１４によって検出された踏力に比例し
た電力を電動モータ１５に供給するための踏力比例制御
手段２７と、バッテリＡ，Ｂの残量を常時検出するバッ
テリ残量検出手段２８と、ＣＰＵ電源２９及びバッテリ
Ａ，Ｂの自動切換を行うバッテリ切換手段３０が内蔵さ
れており、該コントローラ１３には表示部３１が電気的
に接続されている。That is, FIG. 3 is an electric circuit diagram of the power feeding system,
In the figure, A and B are batteries, 13 is the controller,
15 is the electric motor, and the controller 13 has
A pedaling force proportional control means 27 for supplying electric power proportional to the pedaling force detected by the pedaling force detecting means 14 to the electric motor 15, a battery remaining amount detecting means 28 for constantly detecting the remaining amount of the batteries A and B, and a CPU. A power source 29 and a battery switching means 30 for automatically switching between the batteries A and B are built in, and a display section 31 is electrically connected to the controller 13.
【００２９】ところで、バッテリＡ，Ｂはコントローラ
１３によって駆動されるバッテリ切換用リレー３２によ
って駆動電力供給ラインＬO に選択的に接続され、コン
トローラ１３を経てパワーユニット１２の電動モータ１
５に電力を供給するが、バッテリ切換用リレー３２は有
極リレーで構成されており、該リレー３２は電源を切っ
ても直前の状態（電源を切る前の状態）を保持する。The batteries A and B are selectively connected to the drive power supply line L O by the battery switching relay 32 driven by the controller 13, and the electric motor 1 of the power unit 12 is passed through the controller 13.
5, the battery switching relay 32 is composed of a polarized relay, and the relay 32 retains the state immediately before the power is turned off (the state before the power is turned off).
【００３０】又、図３に示すように、上記駆動電力供給
ラインＬO とは別に、各バッテリＡ，Ｂからコントロー
ラ１３のＣＰＵ電源２９に接続されるコントローラ電源
ラインＬA ，ＬB が設けられており、これらのコントロ
ーラ電源ラインＬA ，ＬB はそれぞれダイオードＤA ，
ＤB を介して並列に接続されている。Further, as shown in FIG. 3, controller power supply lines L A and L B connected from the batteries A and B to the CPU power supply 29 of the controller 13 are provided separately from the drive power supply line L O. The controller power supply lines L A and L B are connected to diodes D A and
They are connected in parallel via D B.
【００３１】次に、前記バッテリ切換手段３０によるバ
ッテリＡ，Ｂの切換手順を図４及び図５に基づいて説明
する。尚、図４はバッテリＡ，Ｂの切換手順を示すフロ
ーチャート、図５はバッテリ残量とフラグの設定との関
係を示す図である。Next, a procedure for switching the batteries A and B by the battery switching means 30 will be described with reference to FIGS. 4 and 5. 4. FIG. 4 is a flow chart showing the switching procedure of the batteries A and B, and FIG. 5 is a diagram showing the relationship between the battery remaining amount and the flag setting.
【００３２】不図示の電源スイッチがＯＮされると、一
方のバッテリＡが放電可能（ＯＫ）であるか否かが判断
され（ステップ１）、バッテリＡが放電可能であれば、
次に他方のバッテリＢが放電可能であるかが判断される
（ステップ２）。そして、バッテリＢも放電可能（つま
り、バッテリＡ，Ｂが共に放電可能）である場合には、
フラグＡ１＝１，Ｂ１＝１、Ａ２＝１，Ｂ２＝１に設定
され（ステップ３，４）、リレー３２がバッテリＡ側に
切り換ええられる（ステップ５）。When a power switch (not shown) is turned on, it is determined whether one battery A can be discharged (OK) (step 1). If the battery A can be discharged,
Next, it is determined whether the other battery B can be discharged (step 2). When the battery B can also be discharged (that is, both batteries A and B can be discharged),
The flags A1 = 1, B1 = 1, A2 = 1, B2 = 1 are set (steps 3, 4), and the relay 32 is switched to the battery A side (step 5).
【００３３】ここで、フラグＡ１，Ｂ１は図５に示すよ
うにバッテリＡ，Ｂの残量が０％（バッテリＡ，Ｂが無
い場合も含む）であるか否かを示すフラグであって、残
量が０％でなければ（つまり、放電可能であれば）Ａ１
＝１，Ｂ＝１に設定され、残量が０％であればＡ１＝
０，Ｂ１＝０に設定される。又、フラグＡ２，Ｂ２は図
５に示すようにバッテリＡ，Ｂが切換時期に達している
か否かを示すフラグであって、切換時期に達していなけ
ればＡ２＝１，Ｂ２＝１に設定され、切換時期に達して
いればＡ２＝０，Ｂ２＝０に設定される。Here, the flags A1 and B1 are flags indicating whether or not the remaining amount of the batteries A and B is 0% (including the case where the batteries A and B are not present) as shown in FIG. If the remaining amount is not 0% (that is, if discharge is possible) A1
= 1 and B = 1 and the remaining amount is 0%, A1 =
0 and B1 = 0 are set. Further, the flags A2 and B2 are flags indicating whether or not the batteries A and B have reached the switching timing as shown in FIG. 5, and if the switching timing has not been reached, A2 = 1 and B2 = 1 are set. If the switching timing has been reached, A2 = 0 and B2 = 0 are set.
【００３４】尚、図３に示す表示部３１には、各バッテ
リＡ，Ｂの残量や切換時期を別個に表示する不図示の表
示灯が少なくとも各２つずつ、計４つ以上設けられてお
り、例えば各バッテリＡ，Ｂの残量が十分である場合に
は表示灯は緑に点灯され、残量が少なくなると緑の点滅
表示がなされ、切換時期に達すると赤に点灯され、バッ
テリＡ，Ｂが装填されていない場合には消灯される。従
って、ユーザーはバッテリＡ，Ｂの装填の有無を含めて
両バッテリＡ，Ｂの状態を容易に把握することができ
る。The display unit 31 shown in FIG. 3 is provided with at least two not-shown indicator lights for individually displaying the remaining amounts of the batteries A and B and the switching timing, respectively, for a total of four or more. For example, when the remaining amount of each of the batteries A and B is sufficient, the indicator light is lit in green, when the remaining amount is low, green blinking is displayed, and when the switching time is reached, it is lit in red and the battery A , B is not loaded, the light is turned off. Therefore, the user can easily grasp the states of both batteries A and B including the presence / absence of loading of the batteries A and B.
【００３５】他方、ステップ２での判断結果がＮＯであ
る場合、つまり、バッテリＡが放電可能で、バッテリＢ
が放電不能（残量が０％であるか或はバッテリＢが装填
されていない場合）である場合には、フラグＡ１＝１，
Ｂ１＝０、Ａ２＝１，Ｂ２＝０に設定され（ステップ
６，７）、リレー３２がバッテリＡ側に切り換えられる
（ステップ８）。On the other hand, if the determination result in step 2 is NO, that is, the battery A can be discharged and the battery B
Is incapable of discharging (when the remaining amount is 0% or the battery B is not loaded), the flag A1 = 1,
B1 = 0, A2 = 1, and B2 = 0 are set (steps 6 and 7), and the relay 32 is switched to the battery A side (step 8).
【００３６】又、ステップ１での判断結果がＮＯである
場合（つまり、バッテリＡが放電不能である場合）に
は、バッテリＢが放電可能であるか否かが判断され（ス
テップ９）、バッテリＢが放電可能である場合にはフラ
グＡ１＝０，Ｂ１＝１、Ａ２＝０，Ｂ２＝１に設定され
（ステップ１０，１１）、リレー３２がバッテリＢ側に
切り換えられる（ステップ１２）。これに対してバッテ
リＢも放電不能である場合には、その時点で処理は終了
する（ステップ１３）。When the result of the determination in step 1 is NO (that is, when the battery A cannot be discharged), it is determined whether the battery B can be discharged (step 9), and the battery is determined. If B can be discharged, the flags A1 = 0, B1 = 1, A2 = 0, B2 = 1 are set (steps 10 and 11), and the relay 32 is switched to the battery B side (step 12). On the other hand, if the battery B cannot be discharged, the process ends at that point (step 13).
【００３７】以上の処理（初期設定）によってバッテリ
Ａ，Ｂが如何なる状態にあるかがチェックされると、次
に前記踏力検出手段１４（図１参照）によって踏力が検
出されるとともに不図示の車速検出手段によって車速が
検出され（ステップ１４）、バッテリＡ又はＢが切換時
期に達したか否かが判断される（ステップ１５）。そし
て、バッテリＡ，Ｂが共に未だ切換時期に達していない
場合には、コントローラ１３によって補助動力が演算さ
れ（ステップ１６）、それに見合う出力指示がなされ
（ステップ１７）、処理はステップ１４に戻される。When the states of the batteries A and B are checked by the above processing (initial setting), the pedal effort is detected by the pedal effort detecting means 14 (see FIG. 1) and the vehicle speed (not shown) is detected. The vehicle speed is detected by the detection means (step 14), and it is determined whether the battery A or B has reached the switching timing (step 15). If neither of the batteries A and B has reached the switching timing yet, the controller 13 calculates the auxiliary power (step 16), gives an output instruction commensurate with the auxiliary power (step 17), and returns the process to step 14. .
【００３８】一方、バッテリＡ又はＢが切換時期に達し
た場合には、フラグＡ２＝０又はＢ２＝０に設定され
（ステップ１８）、踏力が所定の設定値より小さいか否
か（つまり、補助動力要求値が設定値以下であるか否
か）が判断され（ステップ１９）、踏力が設定値より大
きい場合には、バッテリＡ，Ｂ間の切り換えは行われ
ず、補助動力が演算されて補助動力の供給が継続される
（ステップ１６，１７）。これに対して踏力が設定値よ
りも小さい場合には、切換時期に達したと判断されたバ
ッテリＡ（Ｂ）とは異なる他方のバッテリＢ（Ａ）につ
いてのフラグＢ２（Ａ２）＝１であるか否か（つまり、
バッテリＢ（Ａ）が交換時期に未だ達していないか否
か）が判断され（ステップ２０）、バッテリＢ（Ａ）が
交換時期に達していなければ、踏力が小さい間に補助動
力の供給を瞬間的に中断し（ステップ２１）、リレー３
２をバッテリＡ（Ｂ）側からバッテリＢ（Ａ）に切り換
えてバッテリＡ（Ｂ）をバッテリＢ（Ａ）に切り換える
（ステップ２２）。On the other hand, when the battery A or B reaches the switching timing, the flag A2 = 0 or B2 = 0 is set (step 18), and whether or not the pedal effort is smaller than a predetermined set value (that is, the auxiliary It is determined whether or not the power demand value is less than or equal to the set value (step 19), and if the pedaling force is greater than the set value, the switching between the batteries A and B is not performed and the auxiliary power is calculated and the auxiliary power is calculated. Is continued to be supplied (steps 16 and 17). On the other hand, when the pedal effort is smaller than the set value, the flag B2 (A2) = 1 for the other battery B (A) different from the battery A (B) determined to have reached the switching timing. Or not (that is,
It is determined whether or not the battery B (A) has not reached the replacement time (step 20). If the battery B (A) has not reached the replacement time, the auxiliary power is momentarily supplied while the pedal effort is small. Stop (step 21) and relay 3
2 is switched from the battery A (B) side to the battery B (A), and the battery A (B) is switched to the battery B (A) (step 22).
【００３９】他方、ステップ２０での判断結果がＮＯで
ある場合（つまり、バッテリＢ（Ａ）が切り換え時期に
達している場合）には、切り換えようとする他方のバッ
テリＡ（Ｂ）の放電が可能であるか否か（即ち、切換時
期に達しているが、残量が未だ０％に達していないか否
か）が判断され（ステップ２３）、バッテリＡ（Ｂ）の
放電が可能である間はそのまま継続して補助動力が供給
され続け（ステップ１６，１７）、電力が消費されてバ
ッテリＡ（Ｂ）の放電が不能になった時点で処理が終了
する（ステップ２４）。On the other hand, when the determination result in step 20 is NO (that is, when the battery B (A) has reached the switching timing), the other battery A (B) to be switched is discharged. It is determined whether or not it is possible (that is, whether or not the switching timing has been reached, but the remaining amount has not reached 0%) (step 23), and the battery A (B) can be discharged. During this period, the auxiliary power continues to be supplied (steps 16 and 17), and the process ends when the power is consumed and the battery A (B) cannot be discharged (step 24).
【００４０】以上において、本実施の形態においては、
ユーザーは電動補助自転車１のバッテリボックス２５内
に装填すべきバッテリＡ，Ｂの数を選択することによっ
て走行距離や積荷の大小等に応じてバッテリ容量を簡単
に選択することができるとともに、同一仕様で同一寸法
・形状の２つのバッテリＡ，Ｂを用意しておけば済むた
め、ユーザーの経済的負担が軽減される。又、バッテリ
Ａ又はＢを車体から取り外して充電するときには、使用
したバッテリＡ又はＢのみを運搬すれば済むため、ユー
ザーの肉体的負担も軽減される。In the above, in the present embodiment,
By selecting the number of batteries A and B to be loaded in the battery box 25 of the power-assisted bicycle 1, the user can easily select the battery capacity according to the mileage, the size of the load, and the like, and have the same specifications. Since it suffices to prepare two batteries A and B having the same size and shape, the economic burden on the user is reduced. Further, when the battery A or B is removed from the vehicle body and charged, only the used battery A or B needs to be transported, and the physical burden on the user is also reduced.
【００４１】更に、本実施の形態においては、バッテリ
の切り換えはライダーの踏力が小さくて補助動力要求値
も小さいときに瞬間的になされるため、大きな補助動力
が供給されているときに行う場合に比してライダーへの
ショックが小さく抑えられる。Further, in the present embodiment, the battery switching is instantaneously performed when the pedaling force of the rider is small and the auxiliary power demand value is also small. Therefore, when the large auxiliary power is supplied, Compared to this, the shock to the rider can be reduced.
【００４２】又、本実施の形態では、動電力供給ライン
ＬO とは別に、各バッテリＡ，Ｂからコントローラ１３
のＣＰＵ電源２９に接続されるコントローラ電源ライン
ＬA，ＬB が設けられており、これらのコントローラ電
源ラインＬA ，ＬB はそれぞれダイオードＤA ，ＤB を
介して並列に接続されているため、電源スイッチ投入時
にバッテリＡ又はＢが装着されていない側にリレー３２
の接点が閉じていた場合の無電源状態やバッテリＡ，Ｂ
切換時の回路オープンによるコントローラ１３のリセッ
トが避けられる。そして、バッテリ切換用リレー３２が
有極リレーによって構成されるため、無駄なリレー３２
の作動が防がれてリレー３２による電力消費量が低く抑
えられる。Further, in the present embodiment, in addition to the dynamic power supply line L O , the batteries A, B to the controller 13 are separately provided.
Controller power supply lines L A and L B connected to the CPU power supply 29 are provided, and these controller power supply lines L A and L B are connected in parallel via diodes D A and D B , respectively. , The relay 32 on the side where the battery A or B is not attached when the power switch is turned on.
No-power condition or battery A, B when the contact is closed
It is possible to avoid resetting the controller 13 due to circuit opening at the time of switching. Since the battery switching relay 32 is composed of a polarized relay, the useless relay 32
Is prevented, and the power consumption by the relay 32 is suppressed to a low level.
【００４３】その他、本実施の形態に係る電動補助自転
車１においては、バッテリＡ，Ｂの数に拘らず車体重心
の左右方向の変化がなく、当該自転車１に高い操縦安定
性が確保される。In addition, in the power-assisted bicycle 1 according to the present embodiment, there is no change in the center of gravity of the vehicle body in the left-right direction regardless of the number of the batteries A and B, and high steering stability is ensured for the bicycle 1.
【００４４】ところで、以上の実施の形態は本発明を二
輪の電動補助自転車に適用した例について述べたが、本
発明は図６に示す三輪の電動補助自転車１０１をもその
適用対象に含むものであって、この場合、同一仕様で同
一寸法・形状の２つのバッテリＡ，Ｂを荷台トレー１３
３内の左右に並設するようにしても良い。尚、図６にお
いて、１０４はハンドル、１１１はシート、１０６は前
輪、１２１は後二輪、１３４は荷台トレー１３３上に固
定された荷篭であって、荷台トレー１３３の後面にはバ
ッテリＡ，Ｂを出し入れするための開口部を覆う蓋部材
１３５が設けられている。By the way, although the above embodiment has been described with respect to an example in which the present invention is applied to a two-wheel power assisted bicycle, the present invention also includes a three-wheel power assisted bicycle 101 shown in FIG. Therefore, in this case, two batteries A and B having the same specifications and the same size and shape are used as the loading tray 13
You may make it arrange in parallel on the right and left in 3. In FIG. 6, 104 is a handle, 111 is a seat, 106 is a front wheel, 121 is two rear wheels, and 134 is a basket fixed on the cargo tray 133, and batteries A and B are provided on the rear surface of the cargo tray 133. A lid member 135 is provided to cover the opening for taking in and out.
【００４５】又、以上の実施の形態では、２つのバッテ
リを搭載可能な電動補助自転車について述べたが、電動
補助自転車に３つ以上のバッテリを搭載可能に構成して
も良いことは勿論である。Further, in the above embodiment, the electric assisted bicycle capable of mounting two batteries has been described, but it goes without saying that the electric assisted bicycle may be configured to be capable of mounting three or more batteries. .
【００４６】[0046]
【発明の効果】以上の説明で明らかなように、請求項１
記載の発明によれば、ユーザーは車体に搭載すべきバッ
テリの数を選択することによって走行距離や積荷の大小
等に応じてバッテリ容量を簡単に選択することができる
ととともにに、同一仕様で同一寸法・形状のバッテリを
複数用意しておけば足りるため、ユーザーの経済的負担
が軽減される。又、バッテリを車体から取り外して充電
するときには、使用したバッテリのみを運搬すれば済む
ため、ユーザーの肉体的負担も軽減されるという効果も
得られる。As is apparent from the above description, claim 1
According to the described invention, the user can easily select the battery capacity according to the traveling distance, the size of the load, etc. by selecting the number of batteries to be mounted on the vehicle body, and the same specifications can be used. Since it is sufficient to prepare a plurality of batteries of different sizes and shapes, the financial burden on the user is reduced. In addition, when the battery is removed from the vehicle body and charged, only the used battery needs to be carried, so that the physical burden on the user can be reduced.
【００４７】請求項２記載の発明によれば、バッテリの
切り換えはライダーの踏力が小さくて補助動力要求値も
小さいときに瞬間的になされるため、大きな補助動力が
供給されているときに行う場合に比してライダーへのシ
ョックが小さく抑えられるという効果が得られる。According to the second aspect of the present invention, the battery switching is instantaneously performed when the pedaling force of the rider is small and the auxiliary power demand value is also small. Therefore, when the large auxiliary power is supplied. Compared to the above, the effect that the shock to the rider can be suppressed is obtained.
【００４８】請求項３記載の発明によれば、電源スイッ
チ投入時にバッテリが装着されていない側にリレー接点
が閉じていた場合の無電源状態やバッテリ切換時の回路
オープンによるコントローラのリセットが避けられると
いう効果が得られる。According to the third aspect of the present invention, it is possible to avoid the reset of the controller due to the non-power supply state when the relay contact is closed on the side where the battery is not mounted at the time of turning on the power switch or the circuit open at the time of battery switching. The effect is obtained.
【００４９】請求項４記載の発明によれば、バッテリ切
換用リレーが有極リレーによって構成されるため、切換
時に一瞬電力が必要なだけとなり、リレーによる電力消
費量が低く抑えられるという効果が得られる。According to the fourth aspect of the invention, since the battery switching relay is composed of a polarized relay, only a momentary electric power is required at the time of switching, and the effect that the electric power consumption by the relay can be suppressed low is obtained. To be
【００５０】請求項５記載の発明によれば、バッテリの
数に拘らず車体重心の左右方向の変化がなく、自転車に
高い操縦安定性が確保されるという効果が得られる。According to the fifth aspect of the invention, there is no change in the center of gravity of the vehicle body in the left-right direction regardless of the number of batteries, and a high steering stability of the bicycle can be secured.
【図１】本発明に係る電動補助自転車１の側面図であ
る。FIG. 1 is a side view of a power-assisted bicycle 1 according to the present invention.
【図２】図１のＸ−Ｘ線拡大断面図（バッテリ収容部断
面図）である。FIG. 2 is an enlarged cross-sectional view (cross-sectional view of a battery accommodating portion) taken along line XX of FIG.
【図３】本発明に係る電動補助自転車の給電系の電気回
路図である。FIG. 3 is an electric circuit diagram of a power feeding system of the power-assisted bicycle according to the present invention.
【図４】バッテリの切換手順を示すフローチャートであ
る。FIG. 4 is a flowchart showing a battery switching procedure.
【図５】バッテリ残量とフラグの設定との関係を示す図
である。FIG. 5 is a diagram showing a relationship between a battery remaining amount and a flag setting.
【図６】本発明の別実施形態に係る三輪の電動補助自転
車の後面図である。FIG. 6 is a rear view of a three-wheel power assisted bicycle according to another embodiment of the present invention.
１，１０１ 電動補助自転車 １２ パワーユニット １３ コントローラ ２５ バッテリボックス ２８ バッテリ残量検出手段 ３０ バッテリ切換手段 ３２ バッテリ切換リレー Ａ，Ｂ バッテリ ＤA ，ＤB ダイオード ＬO 駆動電力供給ライン ＬA ，ＬB コントローラ電源ライン1,101 motor-assisted bicycle 12 power unit 13 controller 25 battery boxes 28 battery remaining amount detecting means 30 battery switching means 32 battery changeover relay A, B battery D A, D B diode L O drive power supply line L A, L B controller power line
Claims (5)
ーラを車体に搭載し、ライダーの踏力をパワーユニット
による補助動力によって補う電動補助自転車において、 同一仕様で同一寸法・形状のバッテリを複数搭載可能と
し、各バッテリの残量を常時検出して何れか１つのバッ
テリを選択して使用するバッテリ切換手段を設けたこと
を特徴とする電動補助自転車。1. An electric power-assisted bicycle in which a battery, a power unit, and a controller are mounted on a vehicle body, and a rider's pedaling force is supplemented by auxiliary power from a power unit, and a plurality of batteries having the same specifications and the same size and shape can be mounted. An electric power-assisted bicycle comprising battery switching means for constantly detecting the amount and selecting and using any one of the batteries.
テリが切換時期に達した際には補助動力要求値が設定値
以下であるときに補助動力の供給を瞬間的に停止してバ
ッテリの切り換えを行うことを特徴とする請求項１記載
の電動補助自転車。2. The battery switching means switches the battery by instantaneously stopping the supply of auxiliary power when the auxiliary power demand value is equal to or less than a set value when the battery in use reaches the switching time. The electric power-assisted bicycle according to claim 1, wherein
て前記パワーユニットに至る駆動電力供給ラインとは別
に、各バッテリからのコントローラ電源ラインをそれぞ
れ設け、各電源ラインをダイオードを介して並列に接続
したことを特徴とする請求項１又は２記載の電動補助自
転車。3. A controller power supply line from each battery is provided separately from a drive power supply line from the battery to the power unit via the controller, and the power supply lines are connected in parallel via a diode. The electric assisted bicycle according to claim 1 or 2.
リ切換用リレーは、電源を切っても直前の状態を保持す
る有極リレーで構成されることを特徴とする請求項１，
２又は３記載の電動補助自転車。4. The battery switching relay included in the battery switching means is constituted by a polar relay that maintains the immediately previous state even when the power is turned off.
The electric assisted bicycle according to 2 or 3.
設されることを特徴とする請求項１，２，３又は４記載
の電動補助自転車。5. The electric power-assisted bicycle according to claim 1, wherein the plurality of batteries are arranged side by side in the longitudinal direction of the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03466896A JP3641055B2 (en) | 1996-02-22 | 1996-02-22 | Electric assist bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03466896A JP3641055B2 (en) | 1996-02-22 | 1996-02-22 | Electric assist bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09226664A true JPH09226664A (en) | 1997-09-02 |
| JP3641055B2 JP3641055B2 (en) | 2005-04-20 |
Family
ID=12420819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03466896A Expired - Fee Related JP3641055B2 (en) | 1996-02-22 | 1996-02-22 | Electric assist bicycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3641055B2 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP3641055B2 (en) | 2005-04-20 |
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