WO2009036623A1 - Contrôleur pour un vélo à assistance électrique - Google Patents

Contrôleur pour un vélo à assistance électrique Download PDF

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Publication number
WO2009036623A1
WO2009036623A1 PCT/CN2007/003589 CN2007003589W WO2009036623A1 WO 2009036623 A1 WO2009036623 A1 WO 2009036623A1 CN 2007003589 W CN2007003589 W CN 2007003589W WO 2009036623 A1 WO2009036623 A1 WO 2009036623A1
Authority
WO
WIPO (PCT)
Prior art keywords
control device
sensor
poles
electric bicycle
assist control
Prior art date
Application number
PCT/CN2007/003589
Other languages
English (en)
Chinese (zh)
Inventor
David Takwei Hon
Original Assignee
David Takwei Hon
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 David Takwei Hon filed Critical David Takwei Hon
Publication of WO2009036623A1 publication Critical patent/WO2009036623A1/fr

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/9517—Proximity switches using a magnetic detector using galvanomagnetic devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/45—Control or actuating devices therefor
    • B62M6/50—Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof

Definitions

  • the present invention relates to a control device for an electric assist (self) vehicle, and more particularly to a control device for controlling an electric assist (self) vehicle to output an assist power.
  • the car can be equipped with a motor mounted on the car to provide assistance to the rider when pedaling, so that the car can start faster, the rider is more labor-saving, and the rider is riding. More comfortable.
  • the power assist control device of the existing electric bicycle detects the change of the magnetic field of the magnetic block on the wheel when the wheel rotates by the Hall sensing detection circuit to determine whether the car is in the step forward state, and controls the rotation of the motor to provide the auxiliary power.
  • the circuit connection structure of the Hall sensing circuit is shown in Figure 1.
  • the S sensor of the Hall sensor is connected to the power supply, the D pole is grounded, the G pole is connected to the output terminal, and a resistor is connected between the power source and the output terminal.
  • the waveform obtained by the Hall sensing detection circuit is as shown in Fig. 2.
  • the ratio of the high level to the low level in the unit period is 3:1; in the reverse state, the waveform is as shown in Fig. 3.
  • the vehicle can be judged to be moving forward or backward. If it is in the forward state, the motor is controlled to rotate to output the assisting power. If it is in the backward state, the motor is stopped.
  • the existing assist control device uses only a single Hall sensor to detect the change of the magnetic field, and is easily interfered by other magnetic fields during the detection process, the detection waveform is deformed. Therefore, in order to improve the accuracy of the judgment, it is necessary to The ratio of the high level to the low level in the continuous period is sampled and compared to obtain the result. Therefore, the detection time of the power assist control device becomes long, and the reaction becomes slow, so that the motor cannot output the assist power in time. For example, when the bicycle is started or climbed, since the motor cannot apply the assisting power in time, the rider has to force the pedal to step on the pedal, and the assist control device detects that it is stepping forward after a lag of 1 second.
  • the assist control device When the motor is controlled to output the power, it will cause the rider to step on the air due to excessive force on the pedal, making the user feel uncomfortable and dangerous. Therefore, the assist control device has a slow reaction speed and does not utilize the use of the electric bicycle. Even if the above problem can improve the reaction speed by increasing the disk and increasing the magnetic block, this will increase the production cost, and the disk is too large to be artificially damaged. Summary of the invention
  • An object of the present invention is to provide a power assist control device for an electric bicycle having a high reaction speed and high accuracy.
  • the power assist control device for the electric bicycle of the present invention comprises a Hall sensor and a plurality of magnetic blocks movable along with the vehicle, wherein the two sensors are connected to the power source, and the two electrodes are connected to the power source, The D poles of the sensors are grounded, and one of the G poles of the sensor is connected in series with one of the piezoelectric reactance devices in parallel with the G pole of the other sensor, and a reactance device is further disposed between the output terminal and the power source.
  • the power assist control device for the electric bicycle of the present invention adopts two Hall sensing detection circuits, and a piezoelectric anti-detection device is connected in series in one of the Hall sensing detection circuits, so The output waveform will cause the output waveform to appear in the third state due to the voltage division of the divided piezoelectric device, that is, the middle level between the high level and the low level.
  • the waveform detected by the control device of the present invention is as shown in FIG. 5, and then turns to a high level after the third state occurs; in the reverse state, the waveform is as shown in FIG. After the state, it turns to low level.
  • the third state is an intermediate mid-level between the high level and the low level, even if there is interference from other magnetic fields, it is only necessary to raise the level after the third state in a single period.
  • the low level judgment can quickly determine whether the car is in the forward motion state, thereby controlling the motor to react to output the auxiliary power of the car without having to sample and detect the waveforms in multiple cycles. Therefore, the power assist control device of the electric bicycle of the present invention has a fast response speed and high accuracy, and is convenient for use of the electric bicycle.
  • FIG. 1 is a schematic diagram of a circuit connection structure of a conventional Hall sensing detection circuit
  • FIG. 2 is a detection output waveform of the detection circuit of FIG. 1 detecting the positive rotation of the wheel;
  • Figure 3 is a detection output waveform of the detecting circuit of Figure 1 detecting the reverse rotation of the wheel;
  • FIG. 4 is a schematic diagram showing the circuit connection structure of the Hall sensing detection circuit of the present invention.
  • Figure 5 is a detection output waveform of the detecting circuit of Figure 4 detecting the positive rotation of the wheel
  • Figure 6 is a detection output waveform of the detecting circuit of Figure 4 detecting the reverse rotation of the wheel
  • FIG. 7 is a partial schematic view showing the magnetic block and the Hall sensor of the present invention after being fixedly mounted;
  • FIG. 8 is a partial schematic view showing the magnetic block and the Hall sensor of the present invention after being fixedly mounted. detailed description
  • the power assist control device for the electric bicycle of the present invention comprises two Hall sensors and a plurality of magnetic blocks movable along with the car, the S poles of the two sensors are connected to the power source, and the D poles of the two sensors are grounded, one of which The G pole of the sensor is connected in series with a voltage dividing resistor 1 and the G pole of the other sensor is connected in parallel with the output terminal.
  • a resistor is also arranged between the output terminal and the power source.
  • the above resistors can also be replaced by capacitors, inductors, etc., although there will be a lag of 1 ⁇ second, but will not make the user feel.
  • the magnet block 2 can be fixedly mounted on the wheel disc, and the Hall sensor 3 is mounted on the seat tube (as shown in FIG. 7); the magnet block 2 can be fixedly mounted on the flywheel, and the Hall sensor 3 is mounted on the frame rear fork. On (as shown in Figure 8).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

L'invention concerne un contrôleur pour un vélo à assistance électrique, particulièrement conçu pour fournir la force d'assistance d'un vélo à assistance électrique, comportant des capteurs à effet Hall et plusieurs groupes d'aimants en mouvement lorsque le vélo roule. Le contrôleur comporte deux capteurs à effet Hall. Les pôles S des capteurs à effet Hall sont reliés à une source d'alimentation. Les pôles D des capteurs à effet Hall sont reliés à la masse. Le pôle G de l'un des capteurs est relié en série avec une résistance diviseuse de tension et, en parallèle, avec le pôle G de l'autre capteur. Une résistance se trouve entre une extrémité de sortie et la source d'alimentation. Le contrôleur peut fournir une réponse rapide et précise, et peut être mis en œuvre facilement sur un vélo à assistance électrique.
PCT/CN2007/003589 2007-09-18 2007-12-13 Contrôleur pour un vélo à assistance électrique WO2009036623A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2007100303004A CN100528681C (zh) 2007-09-18 2007-09-18 电动助力车的助力控制装置
CN200710030300.4 2007-09-18

Publications (1)

Publication Number Publication Date
WO2009036623A1 true WO2009036623A1 (fr) 2009-03-26

Family

ID=39248914

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/003589 WO2009036623A1 (fr) 2007-09-18 2007-12-13 Contrôleur pour un vélo à assistance électrique

Country Status (2)

Country Link
CN (1) CN100528681C (fr)
WO (1) WO2009036623A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562073A1 (fr) 2011-08-24 2013-02-27 J.D Components Co., Ltd. Bicyclette à changement automatique de vitesses avec synchronisation de décalage optimal

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101983893B (zh) * 2010-10-13 2015-08-12 无锡尚格工业设计有限公司 自行车后叉上的电动助力传感器的结构
CN102303682A (zh) * 2011-05-16 2012-01-04 无锡尚格工业设计有限公司 与自行车后叉配合的电动助力传感器的结构
CN102785742B (zh) * 2012-07-28 2014-02-05 成都宽和科技有限责任公司 飞轮上设多磁块不均匀分布磁通量传感器的助力自行车
CN102826172B (zh) * 2012-07-28 2014-03-26 成都宽和科技有限责任公司 链盘上设多磁块位置和磁通量可调节传感器的助力自行车
CN102785747A (zh) * 2012-07-28 2012-11-21 成都宽和科技有限责任公司 壳体内多磁块位置和磁通量不均匀分布的传感元件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2507776Y (zh) * 2001-12-05 2002-08-28 张祥谷 电动车助力传感控制装置
US6595072B2 (en) * 2001-10-22 2003-07-22 Gordon Liao Sensor of the pedaling force of a power-assisting bike
WO2004016496A1 (fr) * 2002-08-15 2004-02-26 Marcelo Jose L Derailleur automatique modulaire pour velo, a base de dispositifs electromecaniques
DE102004022789A1 (de) * 2004-05-08 2005-12-01 Sram Deutschland Gmbh Regelung der Unterstützungsleistung für Fahrräder mit Gangschaltung und elektrischem Antrieb

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4374333A (en) * 1980-05-27 1983-02-15 Sprague Electric Company Two terminal Hall-sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6595072B2 (en) * 2001-10-22 2003-07-22 Gordon Liao Sensor of the pedaling force of a power-assisting bike
CN2507776Y (zh) * 2001-12-05 2002-08-28 张祥谷 电动车助力传感控制装置
WO2004016496A1 (fr) * 2002-08-15 2004-02-26 Marcelo Jose L Derailleur automatique modulaire pour velo, a base de dispositifs electromecaniques
DE102004022789A1 (de) * 2004-05-08 2005-12-01 Sram Deutschland Gmbh Regelung der Unterstützungsleistung für Fahrräder mit Gangschaltung und elektrischem Antrieb

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562073A1 (fr) 2011-08-24 2013-02-27 J.D Components Co., Ltd. Bicyclette à changement automatique de vitesses avec synchronisation de décalage optimal
US8977450B2 (en) 2011-08-24 2015-03-10 J.D. Components Co., Ltd. Automatic gear-shifting bicycle with optimal shift timing

Also Published As

Publication number Publication date
CN101148186A (zh) 2008-03-26
CN100528681C (zh) 2009-08-19

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