WO2020053760A1 - Système et procédé permettant de changer automatiquement la transmission d'une bicyclette - Google Patents

Système et procédé permettant de changer automatiquement la transmission d'une bicyclette Download PDF

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Publication number
WO2020053760A1
WO2020053760A1 PCT/IB2019/057620 IB2019057620W WO2020053760A1 WO 2020053760 A1 WO2020053760 A1 WO 2020053760A1 IB 2019057620 W IB2019057620 W IB 2019057620W WO 2020053760 A1 WO2020053760 A1 WO 2020053760A1
Authority
WO
WIPO (PCT)
Prior art keywords
bicycle
pedals
value
inclination
rotation frequency
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.)
Ceased
Application number
PCT/IB2019/057620
Other languages
English (en)
Inventor
Ivo Emanuele Francesco Boniolo
Gianmarco CEREDA
Simome CHIAPPA
Cristiano Spelta
Matteo Corno
Sergio Matteo Savaresi
Stefano MARELLI
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.)
Politecnico di Milano
E Novia SpA
Original Assignee
Politecnico di Milano
E Novia SpA
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 Politecnico di Milano, E Novia SpA filed Critical Politecnico di Milano
Publication of WO2020053760A1 publication Critical patent/WO2020053760A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs
    • B62M9/123—Rear derailleurs changing gears automatically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
    • B62J45/40—Sensor arrangements; Mounting thereof
    • B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
    • B62J45/415—Inclination sensors
    • B62J45/4152—Inclination sensors for sensing longitudinal inclination of the cycle
    • 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
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/131—Front derailleurs
    • B62M9/133—Front derailleurs changing gears automatically

Definitions

  • FIG 4 illustrates the full control loop of the pedaling cadence, as performed in the diagram of Figure 2.
  • the control algorithm acts as follows:
  • the transmission ratio to be implemented is determined to reduce the deviation of the reference from the measured rotation frequency of pedals.
  • the transmission reference is generated, it is necessary to determine which of the available discrete ratios allows to minimize the deviation from the reference value, which represents the optimum. This is done on the basis of a shift map that defines in the two possible directions (decreasing - down shifting, and increasing - up shifting) how the electronic gearbox should be controlled.
  • the output of the discrete gearbox thus generates two possible commands (up-shift / down-shift) which are supplied by the controller to the electronic gearbox.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Control Of Transmission Device (AREA)

Abstract

La présente invention concerne un système permettant de changer automatiquement le rapport de transmission d'une bicyclette, ledit système comprenant un capteur de fréquence de rotation des pédales de la bicyclette, qui est la cadence de pédalage, un capteur d'accélération fixé au cadre de la bicyclette qui indique l'angle d'inclinaison dans la direction d'avancement de la bicyclette par rapport à un plan horizontal, un capteur ou un estimateur de couple monté de manière fonctionnelle sur la bicyclette pour fournir un signal de couple représentant un couple résistant agissant sur les pédales de la bicyclette, une mémoire non volatile qui contient une table pour consulter des valeurs de référence de la fréquence de rotation des pédales (de la cadence de pédalage) en fonction de valeurs de l'angle d'inclinaison de la direction d'avancement, ainsi qu'une unité de commande en communication avec le capteur de fréquence, le capteur de couple ou l'estimateur et le capteur d'accélération et avec la mémoire non volatile, configuré : pour lire, à partir de la mémoire, une valeur de référence de la fréquence de rotation des pédales en utilisant, comme entrée, l'angle d'inclinaison détecté par le capteur, pour comparer la fréquence effective de rotation des pédales avec la valeur de référence lue à partir de la mémoire et pour augmenter ou pour réduire automatiquement le rapport de transmission de la bicyclette en fonction de ladite comparaison et de ladite valeur de couple résistant sur les pédales de la bicyclette de sorte à ajuster la cadence de pédalage requise pour le cycliste avec la valeur de référence de la fréquence de rotation lue par la mémoire non volatile et de la valeur de couple résistant sur les pédales de bicyclette. La présente invention porte également sur un procédé permettant de changer automatiquement une transmission d'une bicyclette.
PCT/IB2019/057620 2018-09-11 2019-09-10 Système et procédé permettant de changer automatiquement la transmission d'une bicyclette Ceased WO2020053760A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102018000008502 2018-09-11
IT201800008502 2018-09-11

Publications (1)

Publication Number Publication Date
WO2020053760A1 true WO2020053760A1 (fr) 2020-03-19

Family

ID=64556985

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2019/057620 Ceased WO2020053760A1 (fr) 2018-09-11 2019-09-10 Système et procédé permettant de changer automatiquement la transmission d'une bicyclette

Country Status (2)

Country Link
TW (1) TW202033407A (fr)
WO (1) WO2020053760A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115447705A (zh) * 2021-06-08 2022-12-09 纳恩博（常州）科技有限公司 电机的控制方法、装置、电动助力车、电子设备及介质
US12103639B2 (en) 2021-06-03 2024-10-01 Sram, Llc Bicycle control system
US12103640B2 (en) 2021-06-03 2024-10-01 Sram, Llc Bicycle control system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6047230A (en) * 1997-02-27 2000-04-04 Spencer; Marc D. Automatic bicycle transmission
EP1314638A2 (fr) * 2001-11-21 2003-05-28 Shimano Inc. Procédé et dispositif de commande pour transmission de bicyclette
WO2012068265A1 (fr) * 2010-11-18 2012-05-24 Sean Michael Simpson Système et procédé permettant de contrôler la transmission d'un véhicule à propulsion humaine
KR20150089997A (ko) * 2015-07-17 2015-08-05 이기영 센서를 이용한 자전거 자동기어 변속장치와 안장 내리기 장치
US20160375958A1 (en) * 2015-06-25 2016-12-29 Shimano Inc. Bicycle transmission control apparatus
US20170334522A1 (en) * 2014-11-18 2017-11-23 Vanhawks Inc. Network-enabled bicycles, bicycles interconnected into a mesh network, electronic devices for bicycles and related methods

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6047230A (en) * 1997-02-27 2000-04-04 Spencer; Marc D. Automatic bicycle transmission
EP1314638A2 (fr) * 2001-11-21 2003-05-28 Shimano Inc. Procédé et dispositif de commande pour transmission de bicyclette
WO2012068265A1 (fr) * 2010-11-18 2012-05-24 Sean Michael Simpson Système et procédé permettant de contrôler la transmission d'un véhicule à propulsion humaine
US20170334522A1 (en) * 2014-11-18 2017-11-23 Vanhawks Inc. Network-enabled bicycles, bicycles interconnected into a mesh network, electronic devices for bicycles and related methods
US20160375958A1 (en) * 2015-06-25 2016-12-29 Shimano Inc. Bicycle transmission control apparatus
KR20150089997A (ko) * 2015-07-17 2015-08-05 이기영 센서를 이용한 자전거 자동기어 변속장치와 안장 내리기 장치

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12103639B2 (en) 2021-06-03 2024-10-01 Sram, Llc Bicycle control system
US12103640B2 (en) 2021-06-03 2024-10-01 Sram, Llc Bicycle control system
TWI901884B (zh) * 2021-06-03 2025-10-21 美商速聯有限責任公司 用以控制自行車之電子換檔之方法、用於自行車之控制器、及其相關非暫態電腦可讀儲存媒體
CN115447705A (zh) * 2021-06-08 2022-12-09 纳恩博（常州）科技有限公司 电机的控制方法、装置、电动助力车、电子设备及介质

Also Published As

Publication number Publication date
TW202033407A (zh) 2020-09-16

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