EP1813313A1 - Procédé et arrangement en relation avec un dispositif d'exercice - Google Patents

Procédé et arrangement en relation avec un dispositif d'exercice Download PDF

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Publication number
EP1813313A1
EP1813313A1 EP07101167A EP07101167A EP1813313A1 EP 1813313 A1 EP1813313 A1 EP 1813313A1 EP 07101167 A EP07101167 A EP 07101167A EP 07101167 A EP07101167 A EP 07101167A EP 1813313 A1 EP1813313 A1 EP 1813313A1
Authority
EP
European Patent Office
Prior art keywords
exercise
flywheel
resistance
route
exercise device
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.)
Withdrawn
Application number
EP07101167A
Other languages
German (de)
English (en)
Inventor
Simo Mäenpää
Mikael Mäki
Peter Stenström
Pasi Mattila
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.)
Tunturi Ltd Oy
Original Assignee
Tunturi Ltd Oy
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 Tunturi Ltd Oy filed Critical Tunturi Ltd Oy
Publication of EP1813313A1 publication Critical patent/EP1813313A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/22—Resisting devices with rotary bodies
    • A63B21/225—Resisting devices with rotary bodies with flywheels
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
    • A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
    • A63B2022/0635—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers specially adapted for a particular use
    • A63B2022/0658—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers specially adapted for a particular use for cycling with a group of people, e.g. spinning classes
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B24/00—Electric or electronic controls for exercising apparatus of preceding groups; Controlling or monitoring of exercises, sportive games, training or athletic performances
    • A63B24/0087—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load
    • A63B2024/009—Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load the load of the exercise apparatus being controlled in synchronism with visualising systems, e.g. hill slope
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
    • A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/06—Training appliances or apparatus for special sports for rowing or sculling

Definitions

  • the invention relates to a method in connection with an exercise device, which comprises a flywheel, wherein resistance of an exercise being performed is adjusted by decelerating the rotation of the flywheel.
  • the invention also relates to an arrangement in connection with an exercise device, which comprises a flywheel, wherein resistance of an exercise being performed is arranged to be adjusted by decelerating the rotation of the flywheel.
  • the attempt at a natural event involves generation of a "free wheel” and consideration of the cyclist's kinetic energy when the cyclist rides downhill or does not pedal, for instance.
  • the motion of the flywheel stops relatively fast if the user stops pedalling.
  • the event does not completely correspond to riding a bicycle.
  • the object of the invention is to provide a method and an arrangement which eliminate the drawbacks associated with prior art. This is achieved by a method and arrangement according to the invention.
  • the method according to the invention is characterized in that the magnitude of the exercise resistance is further adjusted by a virtual flywheel simulation.
  • the arrangement according to the invention is characterized in that the arrangement comprises a means which is further arranged to adjust the resistance by means of a virtual flywheel simulation.
  • the major advantage of the invention is that an exercise event, such as a pedalling event, can be rendered as natural as possible in an advantageous manner.
  • An advantage is that resistance can be adjusted automatically according to the route and conditions without complicated motors or other solutions which increase the need for maintenance, etc.
  • a further advantage of the invention is its flexibility since the invention may be applied to different situations, such as various riding routes, in a very advantageous manner.
  • FIG 1 schematically illustrates an exercise bike.
  • the exercise bike comprises a frame structure 1, and a seat structure 2 and a handle structure 3 attached thereto.
  • the exercise bike further comprises a flywheel, which in the example of Figure 1 is encased in a case structure 4.
  • a pedal structure 5 for rotating the flywheel by pedalling is connected to the flywheel by an appropriate power transmission arrangement.
  • the flywheel is further provided with means for decelerating the rotation of the flywheel so as to achieve a desired pedalling resistance.
  • the exercise bike illustrated in Figure 1 further comprises a user interface 6 for controlling the course of the exercise, for example by adjusting the resistance, etc.
  • the user interface also comprises a display 7 where exercise-related information may be shown.
  • An essential feature of the invention is that, in addition to the real flywheel, a virtual, i.e. a computational, flywheel is used.
  • the invention employs a virtual flywheel simulation.
  • the starting point of the invention is simulation of a bicycle.
  • the following dependencies may be noted by examining the bicycle illustrated schematically in Figure 2.
  • Torque Nc is transmitted to the crank shaft through the pedals. This is transformed into torque Nc/s of the drive wheel, where s is the transmission ratio of the gear system of the bicycle to be simulated.
  • Force Fw which tries to move the bicycle forward is directed to the interface between the bicycle and the ground.
  • resisting force Fr is also illustrated at the interface between the bicycle and the ground. The diameter of the drive wheel is d.
  • R the pedalling speed in rpm (rounds/minute).
  • A cross-sectional area of the cyclist and bicycle (m 2 )
  • ⁇ rolling friction coefficient
  • m total mass (kg) of the cyclist
  • bicycle g acceleration of gravity (m/s 2 )
  • ⁇ angular coefficient of the terrain
  • the first term is air resistance
  • the second one rolling friction and the third term is caused by the steepness of the terrain.
  • the equation of motion includes acceleration.
  • I is the flywheel's moment of inertia and w is the flywheel's angular speed.
  • the flywheel's angular speed ⁇ can be calculated from the crank speed R when the transmission ratio k from the crank shaft to the flywheel is known.
  • the transmission ratio k is different from the transmission ratio s of the gearing of the simulated bicycle.
  • ⁇ 2 ⁇ ⁇ ⁇ k ⁇ R 60
  • the suitable moment of inertia is a function of the transmission ratio, i.e. the simulated gear used, and that the dependency is quadratic.
  • the model is used to correct the following deficiencies:
  • a light flywheel does not help at the beginning of a hill or when a transition occurs from downhill to an even surface.
  • the bicycle does not roll downhill.
  • Equations of motion are written for a simulated bicycle and the flywheel of a real ergometer.
  • a change in the speed and a change in the angular speed can be presented by means of a change dR/dt in the crank speed in both equations. This variable must be the same for both equations.
  • the algorithm may be presented as follows.
  • the essential feature of the invention is the use of a virtual flywheel simulation.
  • the desired exercise route is stored as a course and elevation file.
  • the storing may be performed by means of a GPS device and an elevation sensor device, for instance.
  • the above-mentioned information may be obtained as a result of storing performed by the user.
  • the route is repeated virtually by the software in the user interface of the exercise device so that the resistance and the inertia derived from computational kinetic energy and potential energy are adjusted automatically as functions of the route's angle of ascent and descent and of air and rolling resistance dependent on the speed.
  • the adjustment may be implemented according to the calculation principles described above.
  • Storing of the route may also involve its videoing.
  • a videoed route is repeated according to the user's travel speed.
  • the route is preferably repeated on the display 7 of the user interface of the exercise device as the exercising person proceeds.
  • the route may be repeated as an elevation profile, etc.
  • the route is repeated virtually so that the resistance is adjusted automatically according to the route as stated above.
  • the exercising person may influence the resistance by shifting the gears of the virtual bicycle. A lower gear results in a lower speed, smaller air resistance and smaller amount of work to be performed uphill. A higher gear correspondingly results is a higher speed, greater air resistance and larger amount of work to be performed uphill.
  • the total mass of the bicycle and cyclist is 80 kg.
  • the cyclist rides on a flat terrain at a crank speed of 91 rpm and in a gear having a transmission ratio of 3. In that case, the ground speed is 10 m/s.
  • the resisting force is 16.1 N. To maintain a constant speed, the cyclist needs a constant torque of 16.9 Nm.
  • Figures 6 and 7 illustrate a situation where the gears are shifted downwards from gear 3 to gear 1.5. In this situation, the moment of inertia of the flywheel should be small. In the situation of Figures 6 and 7, it takes a few seconds until pedalling starts to accelerate the speed of the bicycle.
  • Figures 8 and 9 illustrate shifting downwards when a light flywheel is used. It can be seen from Figures 8 and 9 that shifting occurs faster when a light flywheel is used. On the basis of Figures 6 to 9, it may be assumed that different time constants are needed for a light and a heavy flywheel.
  • Figures 10 and 11 illustrate a situation where the gears are shifted upwards from gear 3 to gear 3.5. For a moment, the cyclist experiences a high resistance at the pedals if he tries to maintain the same crank speed as before shifting.
  • Figures 12 and 13 illustrate a situation where the cyclist accelerates on a flat surface using gear 3. The resistance is considerable even before the air resistance becomes predominant.
  • Figures 14 and 15 illustrate a situation where the cyclist rides from a flat surface downhill without pedalling.
  • the motion of the flywheel does not reach the simulated speed until pedalling starts.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Biophysics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Control Of Electric Motors In General (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Transmission Devices (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
EP07101167A 2006-01-26 2007-01-25 Procédé et arrangement en relation avec un dispositif d'exercice Withdrawn EP1813313A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20065053A FI20065053A (fi) 2006-01-26 2006-01-26 Menetelmä ja sovitelma kuntolaitteen yhteydessä

Publications (1)

Publication Number Publication Date
EP1813313A1 true EP1813313A1 (fr) 2007-08-01

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EP07101167A Withdrawn EP1813313A1 (fr) 2006-01-26 2007-01-25 Procédé et arrangement en relation avec un dispositif d'exercice

Country Status (4)

Country Link
US (1) US20070179024A1 (fr)
EP (1) EP1813313A1 (fr)
CN (1) CN101007206A (fr)
FI (1) FI20065053A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011048042A1 (fr) 2009-10-20 2011-04-28 Touret Felix Dispositif destine notamment a l'entrainement sportif
CN104971467A (zh) * 2014-04-08 2015-10-14 王国梁 模拟自行车变速比的健身车结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI369223B (en) * 2009-02-11 2012-08-01 Univ Nat Formosa Actual roadway condition simulation system and its method
DE102010028658A1 (de) * 2010-05-06 2011-11-10 Robert Bosch Gmbh Verfahren und Vorrichtung zur automatischen Steuerung des Gangs eines Elektrofahrrad-Getriebes
CN104740860B (zh) * 2015-03-23 2018-07-03 同济大学 一种公路自行车赛竞技辅助训练系统
NL2019598B1 (en) 2017-09-21 2019-03-28 Tacx Roerend En Onroerend Goed B V Bicycle trainer and method of its operation

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4976424A (en) * 1987-08-25 1990-12-11 Schwinn Bicycle Company Load control for exercise device
WO1991008024A2 (fr) * 1989-12-05 1991-06-13 Schumacher Jean Michel Appareil d'exercices physiques avec simulation programmable
US5256115A (en) * 1991-03-25 1993-10-26 William G. Scholder Electronic flywheel and clutch for exercise apparatus
US5890995A (en) * 1993-02-02 1999-04-06 Tectrix Fitness Equipment, Inc. Interactive exercise apparatus
WO2004067102A2 (fr) * 2003-01-24 2004-08-12 Yang Hao H Appareil d'exercice physique a themes
WO2005035072A1 (fr) * 2003-10-07 2005-04-21 Bci Manufacturing, Inc. Tapis roulant a reglages de vitesse automatiques
WO2006050137A2 (fr) * 2004-11-01 2006-05-11 Day Franklin J Machine d'exercice et methode a utiliser pour entrainer des groupes musculaires selectionnes
WO2007015096A2 (fr) * 2005-08-03 2007-02-08 Andrew Robert Loach Machine d'exercice

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Publication number Priority date Publication date Assignee Title
US4938475A (en) * 1987-05-26 1990-07-03 Sargeant Bruce A Bicycle racing training apparatus
AU3283497A (en) * 1996-05-08 1997-11-26 Real Vision Corporation Real time simulation using position sensing
US6945917B1 (en) * 2000-11-21 2005-09-20 Racer-Mate, Inc. Resistance exercise apparatus and trainer
US7648446B2 (en) * 2004-06-09 2010-01-19 Unisen, Inc. System and method for electronically controlling resistance of an exercise machine
WO2007076068A2 (fr) * 2005-12-22 2007-07-05 Radow Scott B Dispositif pour exercice physique

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4976424A (en) * 1987-08-25 1990-12-11 Schwinn Bicycle Company Load control for exercise device
WO1991008024A2 (fr) * 1989-12-05 1991-06-13 Schumacher Jean Michel Appareil d'exercices physiques avec simulation programmable
US5256115A (en) * 1991-03-25 1993-10-26 William G. Scholder Electronic flywheel and clutch for exercise apparatus
US5890995A (en) * 1993-02-02 1999-04-06 Tectrix Fitness Equipment, Inc. Interactive exercise apparatus
WO2004067102A2 (fr) * 2003-01-24 2004-08-12 Yang Hao H Appareil d'exercice physique a themes
WO2005035072A1 (fr) * 2003-10-07 2005-04-21 Bci Manufacturing, Inc. Tapis roulant a reglages de vitesse automatiques
WO2006050137A2 (fr) * 2004-11-01 2006-05-11 Day Franklin J Machine d'exercice et methode a utiliser pour entrainer des groupes musculaires selectionnes
WO2007015096A2 (fr) * 2005-08-03 2007-02-08 Andrew Robert Loach Machine d'exercice

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011048042A1 (fr) 2009-10-20 2011-04-28 Touret Felix Dispositif destine notamment a l'entrainement sportif
CN104971467A (zh) * 2014-04-08 2015-10-14 王国梁 模拟自行车变速比的健身车结构

Also Published As

Publication number Publication date
FI20065053A0 (fi) 2006-01-26
CN101007206A (zh) 2007-08-01
FI20065053A (fi) 2007-07-27
US20070179024A1 (en) 2007-08-02

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