JP5450194B2 - Electric assist bicycle - Google Patents
Electric assist bicycle Download PDFInfo
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- JP5450194B2 JP5450194B2 JP2010069200A JP2010069200A JP5450194B2 JP 5450194 B2 JP5450194 B2 JP 5450194B2 JP 2010069200 A JP2010069200 A JP 2010069200A JP 2010069200 A JP2010069200 A JP 2010069200A JP 5450194 B2 JP5450194 B2 JP 5450194B2
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Description
本発明は、ペダルによる踏力を伝達する人力駆動系と、電動ユニットによる動力を伝達するモータ駆動系とを有する電動補助自転車の改良に関する。 The present invention relates to an improvement in a battery-assisted bicycle having a human-powered drive system that transmits a pedaling force by a pedal and a motor drive system that transmits power by an electric unit.
近年、電動モータなどの電動ユニットによる動力を伝達するモータ駆動系の補助動力を、運転者がペダルを踏むことにより生じる人力駆動系に加えて作用させ、走行を補助することで、運転者がペダルを踏む力を軽減させる電動補助自転車が知られている。 In recent years, auxiliary power of a motor drive system that transmits power from an electric unit such as an electric motor is applied to a human-powered drive system that is generated when the driver steps on the pedal, thereby assisting driving, so that the driver can There is known a battery-assisted bicycle that reduces the force of stepping on the pedal.
特許文献1の発明は、運転者がペダルを踏む力を検出し、ペダルを踏む力に応じてモータ駆動系の補助動力を増減するものであるが、急な上り坂を登坂する場合や重い荷物を搭載した場合などのより強い補助動力が望まれる場合でも、補助動力の上限は同じであり、必要に応じて自動的に補助動力の上限を大きくする機能が望まれていた。 The invention of Patent Document 1 detects the driver's pedaling force and increases or decreases the auxiliary power of the motor drive system according to the pedaling force. Even when stronger auxiliary power is desired, such as the case where the vehicle is mounted, the upper limit of the auxiliary power is the same, and a function of automatically increasing the upper limit of the auxiliary power as required has been desired.
本発明は、上記問題点を解決するためになされたもので、必要に応じて自動的に補助動力を大きくすることが可能な電動補助自転車を提供することを課題とする。 The present invention has been made to solve the above problems, and an object of the present invention is to provide a battery-assisted bicycle that can automatically increase auxiliary power as necessary.
本発明は、人力によって駆動力を発生させる人力駆動系と、バッテリと、該バッテリから出力される電力によって駆動力を発生させる電力駆動系とを有し、前記電力駆動系は、人力による踏力を検出するトルク検出部の出力に基づいて電力駆動系による補助力を付与する電動補助自転車において、サドルへの運転者の着座を検出するサドルセンサを設け、該サドルセンサの出力がなく、且つ、前記トルク検出部の検出するトルク出力が所定値より大きい際に、電力駆動系の出力を増大させることを特徴とする。 The present invention includes a human power drive system that generates a driving force by human power, a battery, and an electric power drive system that generates a driving force by electric power output from the battery. In a battery-assisted bicycle that applies an assisting force by an electric power drive system based on an output of a torque detection unit to be detected, a saddle sensor that detects a driver's seating on a saddle is provided, the saddle sensor has no output, and When the torque output detected by the torque detector is greater than a predetermined value, the output of the power drive system is increased.
本発明によれば、より強い補助動力を必要とする状態を判断して、電力駆動系の出力を増大させることができ、運転者の負荷を軽減することができる等の効果を奏する。 According to the present invention, it is possible to determine a state that requires stronger auxiliary power, increase the output of the power drive system, and reduce the driver's load.
以下、図面を参照して、本発明の実施形態を詳述する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
図1は電動補助自転車の制御手段を示すブロック図、図2は電動補助自転車の制御を示すフローチャートである。 FIG. 1 is a block diagram showing control means for a battery-assisted bicycle, and FIG. 2 is a flowchart showing control of the battery-assisted bicycle.
図1に示すごとく、1は電動モータで、図示しない電動補助自転車の車輪に結合され、バッテリ2から供給された電力によって車輪を回転させ、あるいは車輪の回転を利用して発電し、バッテリ2を充電する。
As shown in FIG. 1, reference numeral 1 denotes an electric motor, which is coupled to a wheel of a battery-assisted bicycle (not shown), rotates the wheel by the electric power supplied from the
3はトルク検出部で、ペダルに加わる運転者の踏力を検出する。4は速度検出部で、電動モータ1の回転速度によって自転車の走行速度を検出する。5はブレーキ検出部で、自転車のブレーキがかけられたことを検出する。6は電動補助自転車のサドルに設けられたサドルセンサで、運転者がサドルに着座したか否かを検出する。
ハンドル近傍に取り付けられる図示しない操作部に、電源スイッチ7、電動補助自転車の前照灯となるライトの点灯を制御するライト点灯スイッチ8、前記バッテリ2の残量を表示するバッテリ残量表示部9が設けられている。
Reference numeral 3 denotes a torque detection unit that detects a driver's pedaling force applied to the pedal. A speed detection unit 4 detects the traveling speed of the bicycle based on the rotation speed of the electric motor 1. Reference numeral 5 denotes a brake detection unit that detects that the bicycle has been braked. Reference numeral 6 denotes a saddle sensor provided on the saddle of the battery-assisted bicycle, and detects whether or not the driver is seated on the saddle.
A
10は制御装置で、前記トルク検出部3、速度検出部4、ブレーキ検出部5、サドルセンサ6、電源スイッチ7およびライト点灯スイッチ8からの信号を入力し、電動モータ1、バッテリ2、バッテリ残量表示部9及び図示しないライトを制御する。
次に動作を図2に示すフローチャートに基づいて説明する。電源投入後、運転者がサドルに着座しているか否かを検出し、着座しておらずサドルセンサ6からの出力がない場合には、電動モータ1を駆動させない(ステップ1)。従って、着座していない状態で、不用意にペダルに力が加わっても電動モータ1が駆動せず、不用意に自転車が動くのを防止することができる。 Next, the operation will be described with reference to the flowchart shown in FIG. After the power is turned on, it is detected whether or not the driver is seated on the saddle. If the driver is not seated and there is no output from the saddle sensor 6, the electric motor 1 is not driven (step 1). Therefore, the electric motor 1 is not driven even when force is applied to the pedal inadvertently, and the bicycle can be prevented from moving carelessly.
ステップ1において、運転者がサドルに着座してサドルセンサ6から出力された状態で、ペダルを踏むと、トルク検出部4がペダルに加わるトルクを検出し(ステップ2)、検出したトルクに応じて電動モータ1を駆動し、人力による踏力に電動モータ1の補助動力を加えて自転車を走行させる(ステップ3)。 In step 1, when the driver sits on the saddle and steps on the pedal while being output from the saddle sensor 6, the torque detector 4 detects torque applied to the pedal (step 2), and according to the detected torque. The electric motor 1 is driven, and the bicycle is run by applying the auxiliary power of the electric motor 1 to the pedaling force by human power (step 3).
サドルセンサ6からの出力がなく、運転者が着座していないことを検出すると(ステップ4)、トルク検出部3がペダルに通常の走行状態より大きな所定のトルク、本実施形態では、420Kgf・cmより大きなトルクが加わっているか否か検出し(ステップ5)、通常の走行状態より大きな所定のトルクが加わっていると、急な上り坂を登坂する場合や重い荷物を搭載した場合などの通常の走行状態より強い補助動力を必要とする立ちこぎ状態で走行していると判断して、電動モータ1の出力を通常の2倍にする(ステップ6)。 When it is detected that there is no output from the saddle sensor 6 and the driver is not seated (step 4), the torque detector 3 applies a predetermined torque larger than the normal running state to the pedal, in this embodiment, 420 kgf · cm. It is detected whether or not a larger torque is applied (step 5), and if a predetermined torque larger than the normal driving state is applied, a normal climbing of a steep uphill or a heavy load is installed. It is determined that the vehicle is traveling in a standing state that requires auxiliary power stronger than the traveling state, and the output of the electric motor 1 is doubled as normal (step 6).
ステップ5において、トルク検出部3の出力が所定のトルク以下の場合には、ステップ7に移行し、トルク検出部の出力が非常に小さい一定値、本実施形態では、200Kgf・cmより小さいか否か検出し、トルク検出部3の出力が非常に小さい一定値より小さい場合には、電動モータ1による補助力を必要としない状態であると判断して、電動モータ1を停止する。ステップ7において、トルク変動幅が所定の範囲より大きい場合には、ステップ2へ移行し、通常の走行を継続する。
In step 5, when the output of the torque detector 3 is equal to or lower than the predetermined torque, the process proceeds to
本発明は、電動モータにより走行を補助する電動補助自転車に利用可能である。 The present invention is applicable to a battery-assisted bicycle that assists traveling by an electric motor.
1 電動モータ
2 バッテリ
3 トルク検出部
6 サドルセンサ
12 制御回路
DESCRIPTION OF SYMBOLS 1
Claims (2)
サドルへの運転者の着座を検出するサドルセンサを設け、該サドルセンサの出力がなく、且つ、前記トルク検出部の検出するトルク出力が所定値より大きい際に、電力駆動系の出力を増大させることを特徴とする電動補助自転車。 A human power drive system that generates a driving force by human power, a battery, and a power drive system that generates a driving force by electric power output from the battery, wherein the power drive system detects torque by detecting a human power. In the battery-assisted bicycle that gives the auxiliary power by the power drive system based on the output of the unit,
A saddle sensor for detecting the seating of the driver on the saddle is provided, and the output of the power drive system is increased when there is no output from the saddle sensor and the torque output detected by the torque detector is greater than a predetermined value. A battery-assisted bicycle.
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Cited By (3)
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CN105460155A (en) * | 2014-08-20 | 2016-04-06 | 光阳工业股份有限公司 | Electric vehicle riding sensing device and method |
CN109720496A (en) * | 2017-10-27 | 2019-05-07 | 株式会社岛野 | Human-powered vehicle control device |
US11124267B2 (en) | 2017-10-31 | 2021-09-21 | Shimano Inc. | Human-powered vehicle control device |
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DE102015202015B3 (en) * | 2015-02-05 | 2016-05-04 | Robert Bosch Gmbh | Processing unit and method for generating drive signals for the electric drive of a two-wheeler |
US9840305B1 (en) * | 2016-05-30 | 2017-12-12 | Shimano Inc. | Bicycle control device and bicycle control system |
JP6778520B2 (en) * | 2016-06-28 | 2020-11-04 | ヤマハ発動機株式会社 | Electric auxiliary bicycle and drive system |
DE102017209811B3 (en) | 2017-06-09 | 2018-07-26 | Robert Bosch Gmbh | Control method for a motor torque of a drive motor of a two-wheeler, control unit and two-wheeler |
CN108423116A (en) * | 2018-04-13 | 2018-08-21 | 南京溧水电子研究所有限公司 | Electric bicycle and its implementation safety device |
JP7125889B2 (en) * | 2018-04-27 | 2022-08-25 | 株式会社シマノ | Manpowered vehicle controller |
JP2019018853A (en) * | 2018-11-08 | 2019-02-07 | パイオニア株式会社 | Riding posture outputting device |
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JP3572704B2 (en) * | 1995-03-15 | 2004-10-06 | セイコーエプソン株式会社 | Driving force assist device |
JP3974974B2 (en) * | 1997-07-22 | 2007-09-12 | 本田技研工業株式会社 | Auxiliary power control device for battery-assisted bicycle |
JP2000344176A (en) * | 1999-06-07 | 2000-12-12 | Mitsubishi Heavy Ind Ltd | Motor assisted bicycle |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105460155A (en) * | 2014-08-20 | 2016-04-06 | 光阳工业股份有限公司 | Electric vehicle riding sensing device and method |
CN109720496A (en) * | 2017-10-27 | 2019-05-07 | 株式会社岛野 | Human-powered vehicle control device |
CN109720496B (en) * | 2017-10-27 | 2021-09-07 | 株式会社岛野 | Control device for human-powered vehicle |
US11130548B2 (en) | 2017-10-27 | 2021-09-28 | Shimano Inc. | Human-powered vehicle control device |
TWI761613B (en) * | 2017-10-27 | 2022-04-21 | 日商島野股份有限公司 | Control device for human powered vehicle |
US11124267B2 (en) | 2017-10-31 | 2021-09-21 | Shimano Inc. | Human-powered vehicle control device |
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