WO2020108671A1 - Elektrofahrrad und verfahren zum betreiben eines elektrofahrrads - Google Patents
Elektrofahrrad und verfahren zum betreiben eines elektrofahrrads Download PDFInfo
- Publication number
- WO2020108671A1 WO2020108671A1 PCT/CZ2019/000055 CZ2019000055W WO2020108671A1 WO 2020108671 A1 WO2020108671 A1 WO 2020108671A1 CZ 2019000055 W CZ2019000055 W CZ 2019000055W WO 2020108671 A1 WO2020108671 A1 WO 2020108671A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electric bicycle
- seat
- electric
- spar
- electric motor
- 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
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
- 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
-
- 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
- B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
- B62J1/02—Saddles resiliently mounted on the frame; Equipment therefor, e.g. springs
- B62J1/04—Saddles capable of swinging about a horizontal pivot
-
- 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
- B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
- B62J1/08—Frames for saddles; Connections between saddle frames and seat pillars; Seat pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K21/00—Steering devices
- B62K21/18—Connections between forks and handlebars or handlebar stems
- B62K21/22—Connections between forks and handlebars or handlebar stems adjustable
-
- 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
-
- 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
-
- 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
- B62M6/60—Rider propelled cycles with auxiliary electric motor power-driven at axle parts
Definitions
- the invention relates to an electric bicycle with at least one electric motor, by means of which a movement of the electric bicycle can be at least supported, with at least one electrical energy store for supplying the electric motor with electrical energy, and with a control device for actuating the electric motor as a function of at least one of the control devices that can be transmitted . Furthermore, the invention relates to a method for operating such an electric bicycle.
- Bicycles currently available can be driven purely mechanically, on the one hand, in that the rider ensures that the bicycle moves by pedaling.
- this movement can be supported by at least one electric motor. It can be provided that the electric motor switches on to make it easier to pedal.
- a purely electric drive can be provided in an electric bicycle, in which the driver specifies the desired driving speed by means of a rotary handle on the handlebar of the electric bicycle.
- DE 10 201 1 077 903 A1 describes that for switching on or controlling an electric motor of an electric bicycle, for example, the force or the torque can be measured on the pedals, the pedal crank, the chain or on a wheel via a signal from a force sensor. Furthermore, the pedaling speed can be recorded via a signal from a speed sensor. Such measurement signals are then processed electronically, for example, in order to switch the electric motor on and off or to regulate it continuously using a control function.
- a disadvantage here is the fact that the drive mechanism to be provided to move such a bicycle or electric bicycle leads to a comparatively high weight of the bicycle or electric bicycle. Furthermore, stiffening measures are required to absorb the forces introduced, which require the provision of an increased number of stiffening elements on the bicycle or electric bicycle. In addition, the electric bike is not intuitively accelerated and decelerated by means of the electric motor.
- the object of the present invention is therefore to create an electric bicycle of the type mentioned at the beginning, in which particularly intuitive acceleration can be implemented, and to specify a corresponding method for operating an electric bicycle.
- the electric bicycle according to the invention comprises at least one electric motor, by means of which the electric bicycle can at least be supported. However, the electric bicycle can also be moved by means of the at least one electric motor.
- the electric bicycle comprises at least one electrical energy store for supplying the at least one electric motor with electrical energy.
- a control device of the electric bicycle is used to control the at least one electric motor. The activation takes place as a function of at least one signal that can be transmitted to the control device.
- a seat of the electric bicycle and a steering handle of the electric bicycle can be moved relative to one another, and the at least one signal is dependent on a position of the seat and the steering handle relative to one another.
- the position of the steering handle can be fixed relative to a frame of the electric bicycle, for example, and the position of the seat can change relative to the frame.
- the position of the seat may be stationary relative to the frame of the electric bicycle, and the position of the steering handle relative to the frame may change.
- the signal that can be transmitted to the control device also changes.
- the control of the electric motor by the control device then also changes.
- a drive power that can be output by the electric motor for moving the electric bicycle or to support the moving of the electric motor can be changed. This enables a particularly intuitive acceleration of the electric bicycle. Because by changing the position of the seat and the steering handle relative to each other, the driver can control the electric motor.
- the weight of a driver sitting on the seat of the electric bicycle can preferably be accelerated forwardly.
- the electric bicycle can be decelerated by shifting the weight of the driver to the rear. Influencing the driving speed of the electric bicycle in this way by shifting the weight of the driver sitting on the seat of the electric bicycle is particularly intuitive. Because the driver can accelerate by moving the upper body forward. In the case of the electric bicycle described here, this causes the position of the seat relative to the steering handle or the steering handle to change relative to the seat. Accordingly, the driver can preferably reduce the support of the movement of the electric bicycle by means of the electric motor by erecting the upper body, so that the electric bicycle can be decelerated by erecting the upper body.
- the deceleration of the electric bicycle can be caused, in particular, by the fact that a drive power of the electric motor is reduced which it applies to moving the electric bicycle or to support the locomotion.
- the seat is preferably pivotable about an axis of rotation relative to a frame of the electric bicycle.
- the at least one signal is dependent on a rotational position of the seat about the rotational axis.
- a substructure of the seat such as a seat post, can be pivoted about the axis of rotation, which can be formed, for example, in a spar, in particular in an upper spar of the frame, which extends in a longitudinal direction of the electric bicycle.
- a change in the actuation of the electric motor which can be effected by pivoting the seat about the axis of rotation leads to a particularly intuitive implementation of the movement of the driver seated on the seat of the electric bicycle in the actuation of the electric motor.
- a substructure of the seat is connected in a rotationally fixed manner to a wheel carrier of the electric bicycle, a rear wheel of the electric bicycle being held on the wheel carrier.
- a distance between an axis of the rear wheel and an axis of a front wheel of the electric bicycle can be changed.
- the road position of the electric bicycle can then be changed with the pivoting of the seat and the associated change in the distance between the axis of the rear wheel and the axis of the front wheel.
- the height of a center of gravity of the driver of the electric bicycle above the road also changes with the distance between the axis of the rear wheel and the axis of the front wheel.
- the seat can be displaceable in a longitudinal direction of the electric bicycle along a spar of a frame of the electric bicycle. Then the at least one signal is dependent on a position of the seat along the spar. Even with such a control of the electric motor, it is easy to ensure that in the case of aerodynamically favorable seating positions, in which the seat is displaced further away from the steering handle of the electric bicycle, the electric motor provides a particularly high drive power. This is also conducive to intuitive acceleration and / or deceleration of the electric bike.
- the spar of the frame, along which the seat can be displaced is oriented inclined to a roadway on which the electric bicycle is traveling, then when the seat is displaced along the spar in the longitudinal direction of the electric bicycle, the distance of the seat from also changes the roadway. Furthermore, the spar of the frame, along which the seat can be displaced, can be curved at least in regions. This can also mean that when the seat is moved along the spar in the longitudinal direction of the electric bicycle, the distance of the seat from the roadway also changes.
- the spar can be designed as a profile part with a first side leg and a second side leg.
- respective guide elements are formed in the side legs, along which a substructure of the seat can be moved.
- the guide elements can be designed as grooves formed in the side legs or elongated holes formed in the side legs. Pins guided in the grooves or a pin or the like passing through both elongated holes can then be coupled to the substructure of the seat. In this way, a well-defined movement of the seat along the spar and at the same time a particularly robust arrangement of the seat on the spar can be achieved.
- the at least one signal depends on the length of the fork.
- the signal when the driver is supported with great force on the steering handle and accordingly the length of the fork is particularly greatly reduced, the signal cause a particularly large drive power to be provided by the electric motor.
- the length of the fork is less shortened. This can then cause the electric motor to provide a lower drive power for the purpose of moving the electric bike or at least to support the moving of the electric bike.
- the fork is preferably designed as a suspension fork, which can be brought into an initial state or basic state in which the fork has its maximum length due to a restoring force of at least one spring element of the suspension fork.
- the control device is preferably designed to make short changes in the length of the fork, such as can occur when driving onto a curb due to a shock acting on the fork to distinguish persistent reductions in the length of the fork.
- This can be done in particular by evaluating an average length of the fork as the at least one signal from the control device over a predetermined period of time that exceeds the duration of the impact.
- the predetermined period of time can in particular be approximately 1 to 2 seconds, jerky shortenings of the fork occurring during this period and caused by an impact preferably being disregarded when determining the average length of the fork.
- the electric bicycle preferably has at least one potentiometer for providing the at least one signal.
- a position of a sliding contact of the potentiometer relative to a resistance element of the potentiometer is dependent on the position of the seat and the steering handle relative to one another.
- a cross member of a frame of the electric bicycle can have a profile that is open at the bottom.
- the at least one electrical energy store is introduced into the spar from below, and the U-profile is closed in the region of the at least one electrical energy store by a cover which is detachably connected to the spar.
- the electrical energy store can therefore be easily replaced by reversibly releasing the cover from the U-profile.
- the cover can in particular be detachably connected to the spar by means of screws.
- a holder for a mobile terminal is preferably arranged on an upper side of a spar of a frame of the electric bicycle.
- a smartphone can be attached to the holder as the mobile terminal.
- the content displayed on the mobile device can be particularly easily grasped by the driver of the electric bicycle.
- the spar is a spar which extends essentially in the longitudinal direction of the electric bicycle and which extends in particular essentially in the longitudinal direction of the electric bicycle from the seat to the steering handle.
- the upper side of the spar can have a particularly large width if the at least one electrical energy store is arranged on the spar or in a receiving space of the spar. Therefore, the holder for the mobile terminal is preferably arranged in the area of the at least one electrical energy store on the top of the spar.
- At least one electric motor supports at least one movement of the electric bicycle.
- At least one electrical energy store supplies the electric motor with electrical energy.
- At least one signal is transmitted to a control device of the electric bicycle, which is designed to control the electric motor.
- a seat of the electric bicycle and a steering handle of the electric bicycle are moved relative to one another, and the at least one signal is provided as a function of a position of the seat and the steering handle relative to one another.
- the signal changes when the position of the steering handle and seat change relative to each other.
- This causes the electric motor to be controlled as a function of this relative position, so that it provides drive power for moving the electric bicycle or at least to support the movement of the electric bicycle.
- a particularly intuitive acceleration of the electric bicycle can be achieved by such a method.
- the invention also includes further developments of the method according to the invention, which have features as have already been described in connection with the further developments of the electric bicycle according to the invention. For this reason, the corresponding developments of the method according to the invention are not described again here.
- the invention also includes the combinations of the features of the described embodiments.
- Fig. 1 shows schematically an electric bike, in which an acceleration by body weight shift of a driver of the electric bike is possible
- Fig. 2 highly schematic seat positions of the driver on the electric bicycle according to
- Fig. 3 shows schematically the arrangement of a seat or saddle on a frame of the
- Electric bike wherein the electric bike can be accelerated or decelerated by pivoting the seat about an axis of rotation;
- Fig. 4 shows a variant of the electric bike, in which together with the seat
- Wheel carrier for a rear wheel of the electric bicycle can be pivoted so that a distance between an axis of the rear wheel and an axis of a front wheel of the electric bicycle can be increased or decreased;
- Fig. 5 schematically shows the displacement of the seat along an upper spar of the
- FIG. 6 shows a sectional illustration of the spar along a line VI-VI in FIG. 5;
- Fig. 7 is a sectional view of the spar along a line Vll-Vll in Fig. 5;
- Fig. 9 is a sectional view taken along a line IX-IX in Fig. 8;
- Fig. 10 is a plan view of the upper spar of the frame of the electric bike in in
- Fig. 9 area shown; 11 shows a variant of the electric bicycle in which the length of a suspension fork can be changed;
- Fig. 12 relationships between the length of the suspension fork and a driving speed of the electric bike.
- an electric bicycle 1 which comprises at least one electric motor 2.
- the at least one electric motor 2 can comprise a front wheel motor and / or a rear wheel motor and / or a central motor.
- the electric motor 2 is shown schematically as a rear wheel motor, that is to say as an electric motor 2 designed to drive a rear wheel 20 of the electric bicycle 1.
- the electric bicycle 1 has at least one electrical energy store, for example in the form of an accumulator 3.
- the electric motor 2 is switched off by the control device 4 when the electric bicycle 1 reaches a speed of more than 25 kilometers per hour. However, it can also be provided that the electric motor 2 achieves driving speeds of the electric bicycle 1 of more than 25 kilometers per hour. de causes or supports the movement of the electric bicycle 1 at such driving speeds.
- the acceleration and deceleration of the electric bicycle 1 by the drive power provided by the electric motor 2 are dependent on a position of a seat 5 or saddle of the electric bicycle 1 and a handlebar 6 or the like steering handle relative to one another.
- This principle will first be illustrated and explained with reference to FIG. 2.
- a driver 7 is shown in an upright sitting position in an upper illustration in FIG. 2.
- a distance a between a seat point 11 and a vertical reference line 12, which is located at the level of the handlebar 6, is smaller than in the illustration shown below in FIG. 2.
- the seat point 11 can be a center of gravity or center of the seat 5.
- the electric motor 2 can provide a driving power corresponding to the distance a, which propels the electric bicycle 1 at a speed v 0 .
- the electric motor 2 then provides a drive power which leads to a driving speed of the electric bicycle 1 which is greater by the term x.
- the driver 7 in particular (compare FIG. 2) can lean his upper body 8 more forward.
- This movement of the upper body 8 is illustrated in FIG. 1 by a first arrow 9 and has the effect that the control device 4 controls the electric motor 2 in such a way that it provides a greater drive power for moving the electric bicycle than when the upper body 8 is inclined less forwards.
- the driver 7 straightens his upper body 8 more strongly, the electric motor 2 provides less or no drive power due to the control of the electric motor 2 by means of the control device 4.
- This stronger uprighting of the upper body 8 is illustrated in FIG. 1 by a second arrow 10.
- the driver 7 can cause the electric bicycle 1 to accelerate by shifting the weight forward.
- the driver 7 only needs his upper body to lean forward by 8, as is schematically illustrated in FIG. 2. If, however, the driver 7 straightens his upper body 8 more strongly, the electric bicycle 1 decelerates.
- the position of the seat 5 relative to the handlebar 6 it is not necessary for the position of the seat 5 relative to the handlebar 6 to change such that the distance a, b between the seat point 11 and the reference line 12 increases or decreases. Rather, other changes in a position of the seat 5 relative to the handlebar 6 are also possible and can be converted into a corresponding signal, in particular a measurement signal, which is then transmitted to the control device 4 in order to control the electric motor 2 accordingly.
- the seat 5 is pivoted about an axis of rotation 15 relative to a frame 13 of the electric bicycle 1 (see FIG. 1), of which only an upper spar 14 is shown in detail in FIG. 3.
- the axis of rotation 15 preferably extends in the transverse direction of the electric bicycle 1 through the spar 14. If in this variant of the electric bicycle 1 the seat 5 or saddle is pivoted forward about the axis of rotation 15, for example, as is the case when the upper body 8 is tilted forward by the driver 7, then this can accelerate the electric bicycle 1 by that of the Electric motor 2 drive power applied.
- pivoting the seat 5 about the axis of rotation 15 in the longitudinal direction of the electric bicycle 1 to the rear can cause braking or deceleration of the electric bicycle 1.
- the electric bicycle 1 If the electric bicycle 1 is decelerated, it can be provided that the electric motor 2 provides a lower drive power. However, it can also be provided that the electric motor 2 is operated as a generator for decelerating the electric bicycle 1.
- the braking or acceleration of the electric bicycle 1 which can be brought about, for example, by pivoting the seat 5 about the pivot axis or axis of rotation 15 is illustrated in FIG. 3 by a double arrow 16.
- the electric bicycle 1 can have a potentiometer 17, which is shown schematically in FIG. 3.
- a sliding contact of the potentiometer 17 can be displaced relative to a resistance element of the potentiometer 17.
- a signal is then provided by the potentiometer 17, for example in the form of an electrical voltage, which can be evaluated by the control device 4.
- 4 shows a further variant of the electric bicycle 1, in which the seat 5 can be pivoted relative to the frame 13 about the axis of rotation 15.
- a substructure 18 of the seat 5 is rotatably coupled to a wheel carrier 19.
- the substructure 18 can be designed, for example, as a seat post of the seat 5.
- the rear wheel 20 of the electric bicycle 1 is held on the wheel carrier 19. If the seat 5 is now pivoted forward about the axis of rotation 15, this leads to a corresponding pivoting movement of the wheel carrier 19 about the axis of rotation 15 in the clockwise direction. This in turn causes a distance 21 between an axis 22 of the rear wheel 20 and between an axis 23 of a front wheel 24 of the electric bicycle 1 to increase.
- the distance 21 between the axis 22 of the rear wheel 20 and the axis 23 of the front wheel 24 decreases when the driver 7 straightens his upper body 8 and so the seat 5 and the wheel carrier 19 are pivoted counterclockwise about the axis of rotation 15. 4, the potentiometer 17 for detecting the rotational position of the seat 5 is also shown schematically.
- the seat 5 can be displaced along the upper spar 14 in a longitudinal direction 25 of the electric bicycle 1, which is indicated schematically in FIG. 5 by an arrow.
- the upper spar 14 is designed as a profile or profile part with a first side leg 26 and a second side leg 27 (see FIG. 7).
- Guide elements can be formed in the side legs 26, 27, for example in the form of grooves or elongated holes 28.
- a bearing journal 29 can be moved along these elongated holes 28 (see FIG. 7) and serves to mount the seat 5 on the spar 14 (see FIG. 5).
- the displacement of the bearing pin 29 along the elongated holes 28 can be detected by means of the potentiometer 17, which is only shown schematically in FIG. 7.
- a maximum speed v max of the electric bicycle 1 can be achieved if the seat 5 is displaced along the spar 14 in the longitudinal direction 25 as far as possible to the rear, that is to say as far as possible from a head tube 31 which allows the rotation of the handlebar 6 to steer the front wheel 24. If, on the other hand, the seat 5 is displaced along the elongated holes 28 in the longitudinal direction 25 as far forward as possible, that is to say the driver 7 is sitting particularly upright (cf. FIG. 2), the driving speed of the electric bicycle 1 that can be achieved by providing drive power by the electric motor 2 the speed of
- the spar 14 can be designed in the area between the control tube 31 and the elongated holes 28. Accordingly, the spar 14 can also have a cross section in this area have a U-profile open at the bottom or a box-shaped profile open at the bottom. As a result, a receiving space 32, for example rectangular in cross section, is provided within the spar 14. This receiving space 32, which is bounded on the sides by the two side legs 26, 27, offers space for accommodating the rechargeable battery 3. The accumulator 3 can therefore be introduced from below into the receiving space 32 and thus into the spar 14.
- the spar 14 can be given the shape shown in FIG. 6, in particular by hydroforming. However, it is also possible to produce the spar 14 in a shell construction, for example by connecting two components or shells in a materially integral manner, in particular by welding.
- FIG. 8 shows the electric bicycle 1 in a top view from above.
- a holder 34 for a mobile terminal such as a smartphone 37 (see FIG. 10) can be arranged on an upper side 33 (see FIG. 9) of the spar 14.
- the holder 34 can be provided in the area of the spar 14 in which the accumulator 3 is arranged.
- FIG. 9 further shows that the receiving space 32, which is open at the bottom, for the rechargeable battery 3 can be closed by means of a cover 35.
- a cover 35 For example, bolts 36 can be used to releasably connect the cover 35 to the spar 14. After unscrewing the cover 35 from the spar 14, the accumulator 3 can thus be removed from the receiving space 32.
- FIG. 10 shows schematically how the mobile terminal can be attached to the bar 14, for example in the form of the smartphone 37.
- a fork 38 of the electric bicycle 1 can be designed as a suspension fork, the length of which can be changed in the vertical direction of the electric bicycle 1 or in the direction of an axis of rotation of the handlebar 6. If the length of the fork 38 changes, then a position of the seat 5 also changes relative to the link 6 coupled to the fork 38, because if the fork 38 shortens its length due to the force exerted on it by the driver 7 from above the position of the handlebar 6 relative to the seat 5 (not shown in FIG. 11) also changes.
- Fig. 12 different lengths c, d of the fork 38 are shown schematically. Accordingly, the fork 38 has the greater length c, which results when the driver 7 exerts only a small force F on the handlebar 6 from above, so the drive power provided by the electric motor 2 can be used for a driving speed vo of the electric bicycle 1 worry, which is caused by the control of the electric motor 2 by means of the control device 4. If, in contrast, the fork 38 has the shorter length d, the driving speed of the electric bicycle 1, which can be brought about by driving the electric motor 2, can be vo + x.
- This variant of the electric bicycle 1 is based on the knowledge that the driver 7, when he leans the upper body 8 further forward (cf. FIG. 2), applies a greater force F to the fork 38 than in an upright sitting position. Accordingly, in the variant of the electric bicycle 1 described with reference to FIGS. 11 and 12, the driver 7 can also cause the electric bicycle 1 to accelerate and decelerate the electric bicycle 1 by shifting the weight.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZ2018-663A CZ310264B6 (cs) | 2018-11-30 | 2018-11-30 | Elektrokolo a způsob pohánění tohoto elektrokola |
| CZPV2018-663 | 2018-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020108671A1 true WO2020108671A1 (de) | 2020-06-04 |
Family
ID=70852709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CZ2019/000055 Ceased WO2020108671A1 (de) | 2018-11-30 | 2019-11-15 | Elektrofahrrad und verfahren zum betreiben eines elektrofahrrads |
Country Status (2)
| Country | Link |
|---|---|
| CZ (1) | CZ310264B6 (cs) |
| WO (1) | WO2020108671A1 (cs) |
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| CN207072397U (zh) * | 2017-05-03 | 2018-03-06 | 何烨旭 | 一种坐姿可调的自行车 |
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| JP5450194B2 (ja) * | 2010-03-25 | 2014-03-26 | 三洋電機株式会社 | 電動補助自転車 |
| US9840305B1 (en) * | 2016-05-30 | 2017-12-12 | Shimano Inc. | Bicycle control device and bicycle control system |
| JP3212742U (ja) * | 2017-07-19 | 2017-09-28 | 原 健治 | 電動アシスト制御装置及び電動アシスト自転車 |
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- 2018-11-30 CZ CZ2018-663A patent/CZ310264B6/cs unknown
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2019
- 2019-11-15 WO PCT/CZ2019/000055 patent/WO2020108671A1/de not_active Ceased
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011077903A1 (de) | 2011-06-21 | 2012-12-27 | Brose Fahrzeugteile Gmbh & Co. Kg, Coburg | Antriebseinrichtung für ein Elektrorad |
| KR20140100192A (ko) * | 2013-02-06 | 2014-08-14 | 김미나 | 스쿠터 |
| US20160101823A1 (en) * | 2014-06-10 | 2016-04-14 | Fu-Long Chang | Self-balancing vehicle frame |
| US20160016628A1 (en) * | 2014-07-16 | 2016-01-21 | Ford Global Technologies, Llc | Folding bicycle |
| CN204264404U (zh) * | 2014-12-19 | 2015-04-15 | 邓易安 | 具有转弯减速功能的电动车 |
| US20160347397A1 (en) * | 2015-05-29 | 2016-12-01 | Urban626, Llc | Foldable electric vehicle |
| US20160375956A1 (en) * | 2015-06-26 | 2016-12-29 | Specialized Bicycle Components, Inc. | Bicycle frame with improved battery mount |
| US20180161221A1 (en) * | 2016-12-14 | 2018-06-14 | Cheng-Chun Cheng | Mid-wheel drive wheelchair and seat unit |
| CN207072397U (zh) * | 2017-05-03 | 2018-03-06 | 何烨旭 | 一种坐姿可调的自行车 |
Also Published As
| Publication number | Publication date |
|---|---|
| CZ310264B6 (cs) | 2025-01-15 |
| CZ2018663A3 (cs) | 2020-06-10 |
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