CN102501939A - Pedal electric power-assisted bicycle with transmission integration and without manual speed regulation - Google Patents
Pedal electric power-assisted bicycle with transmission integration and without manual speed regulation Download PDFInfo
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- CN102501939A CN102501939A CN2011103464216A CN201110346421A CN102501939A CN 102501939 A CN102501939 A CN 102501939A CN 2011103464216 A CN2011103464216 A CN 2011103464216A CN 201110346421 A CN201110346421 A CN 201110346421A CN 102501939 A CN102501939 A CN 102501939A
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Abstract
The invention discloses a pedal electric power-assisted bicycle with transmission integration and without manual speed regulation, comprising a frame, wheels, a handlebar, a pedal transmission mechanism and an electric transmission mechanism for driving the wheels, and a pedal torque sensing mechanism, wherein the controller of the pedal torque sensing mechanism is disposed on the handlebar; the pedal transmission mechanism comprises a pedal central shaft, a chain wheel shaft and a central shaft planetary gear speed redactor; the electric transmission mechanism comprises a high-speed power-assisted motor, a chain wheel shaft and a motor planetary gear speed redactor; a chain disc on the chain wheel shaft is connected with the flywheel of the rear wheel via a chain; the pedal transmission mechanism, the electric transmission mechanism and the pedal torque sensing mechanism are intensively formed to be a central transmission mechanism using the high-speed power-assisted motor as a main body; and the triangular support and the rear fork of the frame are connected to the shell of the high-speed power-assisted motor. The pedal electric power-assisted bicycle with transmission integration and without manual speed regulation disclosed by the invention simplifies the structure of transmission mechanism and enables the spatial installation position of transmission mechanism to be reduced and suitable for installation for transmission mechanism on the frame of traditional bicycle; and the pedal electric power-assisted bicycle with transmission integration and without manual speed regulation is good in universality.
Description
(1) technical field:
The present invention relates to the pedal and electric morpet, being specially a kind of transmission integrated form does not have manual governing pedal and electric morpet.
(2) background technology:
Bicycle-Electrical Bicycle has been experienced in the development of bicycle--the process of pedal and electric bicycle-electric boosted bicycle.As the electric boosted bicycle of newest fruits be actually with foot-operated be main; And motor is as the auxiliary booster type bicycle driven of carrying out, and this bicycle carries out the 10km distance when riding under no electric boosted situation, and its speed, physical consumption are all just the same with ordinary bicycle; Under electric boosted state; When riding, motor only responds foot-operated stress signal and gives corresponding power-assisted promotion, thereby reduces bicyclist's physical consumption.
Be the resistance that prevents that cutting magnetic line from producing; The used motor of prior electric power-assisted bicycle; Be different from the big hub-type motor of tradition; But be independent of the high servo motor of rotation shaft of wheel, and like application number the patent of invention of 200810030374.2 " a kind of electric power-assisted bike pedal moment sensing system ", the high servo motor is installed on the vehicle frame in foot-operated axis postposition; Pedal moment induction mechanism through synchronous strap drive between high servo motor and the foot-operated axis is connected; The pedal moment induction mechanism is the epicyclic transmission mechanism that has inductor, and inductor is responded to foot-operated running moment size and the moment high low signal is sent to the microelectronics treater, through the rotative power that microelectronics treater control high servo motor is exported and the moment size is complementary.
Said " a kind of electric power-assisted bike pedal moment sensing system " patent of invention is because the dispersion of transmission device is concentrated; Thereby cause the complexity of transmission device; And body frame structure for automotive must particular design to adapt to the installation site of high servo motor; Cause the commonality of vehicle frame poor, manufacturing cost increases, and complete vehicle weight is big and profile is not attractive in appearance.
(3) summary of the invention:
The purpose of this invention is to provide that a kind of transmission device is more brief, the simpler transmission integrated form of body frame structure for automotive form do not have manual governing pedal and electric morpet.
The transmission integrated form that can realize above-mentioned purpose does not have manual governing pedal and electric morpet; Comprise the pedal transmission mechanism and the electric transmissio mechanism of vehicle frame, wheel, handlebar, drive rear wheels and detect pedal transmission mechanism moment size and then the pedal moment sensing mechanism of control electric transmissio mechanism horsepower output size; The controller of pedal moment sensing mechanism is located on the handlebar; Said pedal transmission mechanism comprises foot-operated axis, sprocket shaft and the retarder that connects foot-operated axis and sprocket shaft; Said electric transmissio mechanism comprises high servo motor, sprocket shaft and the retarder that connects high servo motor output shaft and sprocket shaft (shared with pedal transmission mechanism); Chain drum on the said sprocket shaft connects the flywheel of rear wheel through chain; Different is that said pedal transmission mechanism, electric transmissio mechanism and pedal moment sensing mechanism are arranged to the mid-transmission device that the at high speed assist motor is a main body for concentrating, and the spider of said vehicle frame and back vent are connected on the casing of high servo motor.
High servo motor in the said mid-transmission device is the quill shaft motor; Its output shaft is a quill shaft; Said sprocket shaft is an axle sleeve structure, and sprocket shaft rotates and places in the output shaft, and the retarder between sprocket shaft and the output shaft is the motor planetary wheel decelerator that is provided with in high servo motor one side; Foot-operated axis rotates and places in the axis hole of sprocket shaft, and the retarder between foot-operated axis and the sprocket shaft is the axis planet wheel decelerator that is provided with in high servo motor opposite side.
A kind of structure of said motor planetary wheel decelerator comprises motor sun gear, motor planetary gear, motor planetary frame and motor planetary wheel internal gear; Said motor sun gear is with the mouth that is located in output shaft; Said motor planetary gear is uniformly distributed with and is engaged between motor sun gear and the motor planetary wheel internal gear, and said motor planetary frame is through motor overriding clutch connection chain wheel shaft; A kind of structure of said axis planet wheel decelerator comprises axis sun gear, axis planetary wheel, axis pinion carrier and axis satellite gear internal gear; Said axis pinion carrier connects foot-operated axis through the axis overriding clutch; The axis planetary wheel is uniformly distributed with and is engaged between axis sun gear and the axis satellite gear internal gear, and the axis sun gear is coaxial to be connected with sprocket shaft.
The output shaft mouth of said high servo motor is a gear type; Also be the motor sun gear in the motor planetary change-speed box, during the output shaft rotation, the drive motor planet wheel decelerator; Motor planetary frame after slowing down is with low speed rotation; The motor planetary frame is through motor overriding clutch drive sprocket axle, with the chain drum of the coaxial close-fitting of sprocket shaft by the while driven in rotation, the sprocket wheel of rotation moves ahead vehicle through the chain drive rear wheel.
Owing to be provided with the axis overriding clutch between sprocket shaft and the foot-operated axis; When chain drum rotates and foot-operated axis be in each other not interference state; When chain drum receives the rear wheel load stress; Promptly pass sprocket shaft back through the motor overriding clutch, sprocket shaft is passed to the axis overriding clutch through the axis planet wheel decelerator, and axis overriding clutch and foot-operated axis are the one-way clutch interlocks; Receive the resistance that rear wheel produces as long as the applied stress that foot-operated axis receives can overcome chain drum, vehicle just goes forward.
A kind of structure of said pedal moment induction mechanism comprises sensing rolling disc, swing arm, sensor and controller; The sensing rolling disc and the coaxial setting of axis satellite gear internal gear of band retracing spring; Through being set, the circumference that makes axis satellite gear internal gear has amount of spin less than 15 degree; And be uniformly distributed with on its outer shroud circumference and offer local driving cog, swing arm is uniformly distributed with setting around the sensing rolling disc, and the balance staff axle tooth of each local driving cog and each swing arm is corresponding and mesh; The fluted disc engagement of the sector of each swing arm and sensing rolling disc, controller connect the sensor and the high servo motor of induction sensing turn disc amount.
When riding, the stressed rotation of axis satellite gear internal gear, local driving cog promptly rotates synchronously; Local driving cog drives the swing arm swing; The sector oscillating quantity of swing arm obtains multiple amplifies, and the sector of swing arm drives fluted disc makes the sensing rolling disc overcome the torsion rotation of retracing spring, and the amount of spin that the sensing rolling disc is exaggerated is pounced on by sensor and caught; Thereby realized that the linear torque signals that sensor is produced when riding gathers in real time, and guaranteed the precision gathered.
Under riding condition; The working state signal of high servo motor is to be sent through controller (microelectronics treater) by the pedal moment induction mechanism; The sensing electricity of controller is the signal kinetic potential frequently; The axis overriding clutch acquisition of signal mechanism that source and foot-operated axis link each other, and the stress signal linear dynamic range that starts depends on the size of bicyclist to the bicycle pedals application of force.Need not when electric boosted only riding with physical efficiency; Owing between high servo motor output shaft and sprocket shaft, be provided with the motor overriding clutch; Moment of torsion by foot-operated axis transmission is separated by the motor overriding clutch; The high servo motor remains static fully, has avoided driving the resistance that the rotor rotation produces, and it is free and relaxed that vehicle is ridden.
The elastic stress of the retracing spring of sensing rolling disc can be adjusted, and the application of force of assist motor was than producing linear change, the pattern of riding of man-machine integration when Moped Scooter is ridden in real realization when the different elasticity stress value can make foot-operated riding.
A kind of form of said sensor comprises inductor and inductive head, and inductor is located at the deep-slotted chip breaker two ends of offering on the sensing rolling disc, and inductive head is located in the deep-slotted chip breaker.
Advantage of the present invention:
1, transmission integrated form of the present invention does not have manual governing pedal and electric morpet because its foot-operated transmission, motor transmission system and the integrated bicycle pedals axis position that is configured in of moment induction system; And occur with the form of mid-transmission device; Thereby simplified the structure of transmission device, and transmission device space mounting position is reduced, alleviated complete vehicle weight; Be suitable for installing on the vehicle frame of standard bicycle, universal performance is good.
2, drive system structure of the present invention is terse, excellent performance is reliable, and manufacturability is good, drive organically but mutually noninterfere has high driving efficiency of electric force aid system and physical efficiency.
3, pedal moment sensing mechanism of the present invention is different from the prior art mode fully; Adopt swing arm to be uniformly distributed with setting around electrical axis; And form interlock with the outer garden of axis satellite gear internal gear stress point; Make foot-operated mechanical kinetic potential multiplying power with torque sensor linear signal collection point realize the geometric series amplification, sensor signal is precisely steady, for the electric machine control processing terminal provides accurate moment variable signal.
4, the highway test result shows on the spot in the present invention: 75～90Km but the battery power-assisted of a 24V/8Ah of use is ridden; When under the condition of 30Km non helping hand state, riding (firmly return to change and ride) with common comparing property of bicycle; Key index such as the speed of a motor vehicle and physical consumption result and ordinary bicycle are without the slightest difference, and this is that general Moped Scooter is difficult to reach.
(4) description of drawings:
Fig. 1 is the perspective view of mid-transmission device among the present invention.
Fig. 2 is the inner structure scheme drawing of Fig. 1.
Fig. 3 is the sectional perspective constructional drawing of pedal moment induction mechanism among Fig. 1.
Fig. 4 is the sectional perspective constructional drawing (from another visual angle) of pedal moment induction mechanism among Fig. 1.
Fig. 5 is sensing rolling disc and position of inductor figure among Fig. 3, Fig. 4.
Figure number sign: 1, inductive head; 2, inductor; 3, swing arm; 4, sensing rolling disc; 5, foot-operated axis; 6, sprocket shaft; 7, high servo motor; 8, mid-transmission device; 9, output shaft; 10, motor sun gear; 11, motor planetary gear; 12, motor planetary frame; 13, motor planetary wheel internal gear; 14, axis sun gear; 15, axis planetary wheel; 16, axis pinion carrier; 17, axis satellite gear internal gear.
(5) specific embodiment:
Combine accompanying drawing that technical scheme of the present invention is described further at present:
Transmission integrated form of the present invention does not have manual governing pedal and electric morpet does not have (forward and backward) wheel that manual governing pedal and electric morpet equally comprises vehicle frame, support frame, the handlebar that rotates front vehicle wheel, drive rear wheels as tradition pedal transmission mechanism and electric transmissio mechanism and pedal moment sensing mechanism (detecting the moment size and then the control electric transmissio mechanism horsepower output size of pedal transmission mechanism); The controller of pedal moment sensing mechanism is located on the handlebar; Said pedal transmission mechanism comprises foot-operated axis 5, sprocket shaft 6 and the retarder that connects foot-operated axis 5 and sprocket shaft 6; Said electric transmissio mechanism comprises high servo motor 7, sprocket shaft 6 (shared with pedal transmission mechanism) and is connected high servo motor output shaft 9 and the retarder of sprocket shaft 6; Chain drum on the said sprocket shaft 6 connects the flywheel of rear wheel through chain; The present invention is different with it, and to be said pedal transmission mechanism, electric transmissio mechanism and pedal moment sensing mechanism be arranged at high speed assist motor 7 and be the mid-transmission device 8 of main body for concentrating; The output shaft 9 of said high servo motor 7 is a quill shaft; Said sprocket shaft 6 is an axle sleeve structure; The spider of said vehicle frame and back vent are connected on the casing of high servo motor 7, and be as shown in Figure 1.
The retarder of said motor transmission mechanism is the motor planetary wheel decelerator; Sprocket shaft 6 passes through bearing installation in output shaft 9; Sprocket shaft 6 ends of stretching out output shaft 9 mouths are the chain drum installation site; Said motor planetary wheel decelerator is located between output shaft 9 and the sprocket shaft 6, and the motor planetary wheel decelerator comprises motor sun gear 10, motor planetary gear 11, motor planetary frame 12 and motor planetary wheel internal gear 13, and motor planetary wheel internal gear 13 inlay cards are in high servo motor 7 side shell framves; Motor sun gear 10 coaxial output shaft 9 mouths that are fixed on; Three motor planetary gears 11 are uniformly distributed with and are engaged between motor sun gear 10 and the motor planetary wheel internal gear 13, and the mounting bracket of motor planetary gear 11 is that motor planetary frame 12 is connected with sprocket shaft 6 installations through the motor overriding clutch, like Fig. 1, shown in Figure 2.
The retarder of said pedal transmission mechanism is the axis planet wheel decelerator; Foot-operated axis 5 runs through in the axle sleeve that is installed on sprocket shaft 6 through bearing; The axis planet wheel decelerator is located at high servo motor 7 opposite sides; The axis planet wheel decelerator mainly is made up of axis sun gear 14, axis planetary wheel 15, axis pinion carrier 16 and axis satellite gear internal gear 17; The mounting bracket of axis planetary wheel 15 is that axis pinion carrier 16 connects foot-operated axis 5 through the axis overriding clutch; Three axis planetary wheels 15 are uniformly distributed with and are engaged between axis sun gear 14 and the axis satellite gear internal gear 17, and in the bayonet socket of high servo motor 7 side shell framves, the draw-in groove circumferential length is greater than bayonet socket through the draw-in groove inlay card for axis satellite gear internal gear 17; Guarantee the amount of spin that axis satellite gear internal gear 17 has less than 15 degree on circumference, like Fig. 1, Fig. 2, shown in Figure 3.
Said pedal moment induction mechanism comprises sensing rolling disc 4, fan-shaped swing arm 3, sensor and controller; Said sensing rolling disc 4 is in the coaxial setting in axis satellite gear internal gear 17 outsides; Said swing arm 3 is uniformly distributed with three at the circumferencial direction of sensing rolling disc 4; The rotating shaft position of swing arm 3 corresponding the local driving cog of offering on axis satellite gear internal gear 17 outer ring surfaces of indent; Each local driving cog and the engagement of cooresponding swing arm 3 balance staff axle teeth, the covering of the fan tooth of each swing arm 3 and the engagement of the fluted disc of sensing rolling disc 4, said sensing rolling disc 4 has the return function by retracing spring control; Said sensor is interactional inductor 2 and inductive head 1; Offer one section concentric deep-slotted chip breaker on the sensing rolling disc 4; Inductor 2 is located at deep-slotted chip breaker two; Inductive head 1 is set up in midway location in the deep-slotted chip breaker through propping up, and said controller is connected between sensor and the high servo motor 7 through circuit, like Fig. 3, Fig. 4, shown in Figure 5.
The process of riding of the present invention:
1, only rides with foot-operated.
Closing controller, the control path of cut-out high servo motor 7.Pin is stepped on foot-operated foot-operated axis 5 rotations that make, and rotates through axis planet wheel decelerator drive sprocket axle 6, and the chain drum on the sprocket shaft 6 rotates through chain drive rear wheel vehicle is moved ahead.Ride in the shape process, high servo motor 7 remains static, and has avoided driving the resistance that the rotor rotation produces, and vehicle is ridden free and relaxed.
2, need power-assisted to ride.
Opening controller, the control path of connection high servo motor 7.Pin is stepped on foot-operated foot-operated axis 5 rotations that make, and rotates through axis planet wheel decelerator drive sprocket axle 6, and the chain drum on the sprocket shaft 6 rotates through chain drive rear wheel vehicle is moved ahead.Meanwhile, the axis satellite gear internal gear 17 of axis planet wheel decelerator produces circumferential displacement, swing arm 3 swings; Drive sensing rolling disc 4 and rotate, the distance between inductor 2 and the inductive head 1 changes and produces electric signal, after the electric signal via controller is handled; Send instruction to high servo motor 7; The output shaft 9 of high servo motor 7 rotates, and output shaft 9 is through motor planetary wheel decelerator drive sprocket axle 6, and the torque of the power torque of high servo motor 7 and foot-operated axis 5 is superimposed on the sprocket shaft 6; Thereby make sprocket shaft 6 obtain bigger torque, vehicle gets at high speed and rides shape.
The power torque size of high servo motor 7 is by the application of force size decision of foot-operated axis 5; Step on foot-operated axis 5 at a slow speed; Distance of reaction between inductor 2 and the inductive head 1 is less, and the power torque that high servo motor 7 is seen off is then smaller, improves the speed of stepping on foot-operated axis 5; Distance of reaction between inductor 2 and the inductive head 1 increases, and the power torque that high servo motor 7 is seen off then increases.The application of force of foot-operated axis 5 reduces in the process gradually; Because the effect of retracing spring; Sensing rolling disc 4 and 17 while of axis satellite gear internal gear return, the distance of reaction between inductor 2 and the inductive head 1 reduces, and the power torque that high servo motor 7 is seen off reduces thereupon.
The elastic stress of said retracing spring can be adjusted, and the application of force of assist motor was than producing linear change when the different elasticity stress value can make foot-operated riding.
Claims (5)
1. the transmission integrated form does not have manual governing pedal and electric morpet; The pedal moment sensing mechanism that comprises the pedal transmission mechanism and the electric transmissio mechanism of vehicle frame, wheel, handlebar, drive wheels and detect the moment size and then the control electric transmissio mechanism horsepower output size of pedal transmission mechanism; The controller of pedal moment sensing mechanism is located on the handlebar; Said pedal transmission mechanism comprises foot-operated axis (5), sprocket shaft (6) and the retarder that connects foot-operated axis (5) and sprocket shaft (6); Said electric transmissio mechanism comprises high servo motor (7), sprocket shaft (6) and the retarder that connects high servo motor (7) output shaft (9) and sprocket shaft (6); Chain drum on the said sprocket shaft (6) connects the flywheel of rear wheel through chain; It is characterized in that: said pedal transmission mechanism, electric transmissio mechanism and pedal moment sensing mechanism are arranged at high speed assist motor (7) and are the mid-transmission device (8) of main body for concentrating, and the spider of said vehicle frame and back vent are connected on the casing of high servo motor (7).
2. transmission integrated form according to claim 1 does not have manual governing pedal and electric morpet; It is characterized in that: in the said mid-transmission device (8); High servo motor (7) is the quill shaft motor, and its output shaft (9) is a quill shaft, and sprocket shaft (6) is an axle sleeve structure; Sprocket shaft (6) rotates and places in the output shaft (9), and the retarder between sprocket shaft (6) and the output shaft (9) is the motor planetary wheel decelerator that is provided with in high servo motor (7) one sides; Foot-operated axis (5) rotates and places in the axis hole of sprocket shaft (6), and the retarder between foot-operated axis (5) and the sprocket shaft (6) is the axis planet wheel decelerator that is provided with in high servo motor (7) opposite side.
3. transmission integrated form according to claim 2 does not have manual governing pedal and electric morpet; It is characterized in that: said motor planetary wheel decelerator comprises motor sun gear (10), motor planetary gear (11), motor planetary frame (12) and motor planetary wheel internal gear (13); Said motor sun gear (10) is with the mouth that is located in output shaft (9); Said motor planetary gear (11) is uniformly distributed with and is engaged between motor sun gear (10) and the motor planetary wheel internal gear (13), and said motor planetary frame (12) is through motor overriding clutch connection chain wheel shaft (6); Said axis planet wheel decelerator comprises axis sun gear (14), axis planetary wheel (15), axis pinion carrier (16) and axis satellite gear internal gear (17); Said axis pinion carrier (16) connects foot-operated axis (5) through the axis overriding clutch; Axis planetary wheel (15) is uniformly distributed with and is engaged between axis sun gear (14) and the axis satellite gear internal gear (17), and axis sun gear (14) is coaxial to be connected with sprocket shaft (6).
4. transmission integrated form according to claim 3 does not have manual governing pedal and electric morpet; It is characterized in that: said pedal moment induction mechanism comprises sensing rolling disc (4), swing arm (3), sensor and controller; The sensing rolling disc (4) and the coaxial setting of axis satellite gear internal gear (17) of band retracing spring; The circumference of axis satellite gear internal gear (17) has the amount of spin less than 15 degree; And be uniformly distributed with on its outer shroud circumference and offer local driving cog, swing arm (3) is uniformly distributed with setting around sensing rolling disc (4), and the balance staff axle tooth of each local driving cog and each swing arm (3) is corresponding and mesh; The fluted disc engagement of sector of each swing arm (3) and sensing rolling disc (4), controller connects the sensor and the high servo motor (7) of induction sensing rolling disc (4) amount of spin.
5. transmission integrated form according to claim 4 does not have manual governing pedal and electric morpet; It is characterized in that: said sensor comprises inductor (2) and inductive head (1); Inductor (2) is located at the deep-slotted chip breaker two ends of offering on the sensing rolling disc (3), and inductive head (1) is located in the deep-slotted chip breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110346421 CN102501939B (en) | 2011-11-04 | 2011-11-04 | Pedal electric power-assisted bicycle with transmission integration and without manual speed regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110346421 CN102501939B (en) | 2011-11-04 | 2011-11-04 | Pedal electric power-assisted bicycle with transmission integration and without manual speed regulation |
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| Publication Number | Publication Date |
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| CN102501939A true CN102501939A (en) | 2012-06-20 |
| CN102501939B CN102501939B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110346421 Expired - Fee Related CN102501939B (en) | 2011-11-04 | 2011-11-04 | Pedal electric power-assisted bicycle with transmission integration and without manual speed regulation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963913A (en) * | 2013-01-25 | 2014-08-06 | 姚立和 | Automatic stepless speed change device for bicycle |
| WO2014161365A1 (en) * | 2013-04-03 | 2014-10-09 | 宁波能威电机科技有限公司 | Motor for use on assisted bicycle |
| CN107685828A (en) * | 2017-09-19 | 2018-02-13 | 八方电气(苏州)股份有限公司 | Electric bicycle infinitely variable speed transmission |
| CN109693496A (en) * | 2017-10-24 | 2019-04-30 | 湖南捷行科技有限公司 | A kind of wheel hub speed change gear |
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| CN101638135A (en) * | 2009-09-02 | 2010-02-03 | 苏州工业园区同盛车业有限公司 | Speed and leg power sensing device of electric bicycle |
| JP2011051419A (en) * | 2009-08-31 | 2011-03-17 | Honda Motor Co Ltd | Electric vehicle |
| CN102161372A (en) * | 2010-02-22 | 2011-08-24 | 金碧波 | Infinitely variable automatic centrifugation transmission mechanism of electric motorcycle |
| CN202400243U (en) * | 2011-11-04 | 2012-08-29 | 陈戈平 | Drive integrated type non-manual speed adjustment pedal electrically-assisted bicycle |
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- 2011-11-04 CN CN 201110346421 patent/CN102501939B/en not_active Expired - Fee Related
Patent Citations (7)
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| US5570752A (en) * | 1993-07-26 | 1996-11-05 | Yamaha Hatsudoki Kabushiki Kaisha | Transmission arrangement for electric power assisted bicycle |
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| CN101638135A (en) * | 2009-09-02 | 2010-02-03 | 苏州工业园区同盛车业有限公司 | Speed and leg power sensing device of electric bicycle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963913A (en) * | 2013-01-25 | 2014-08-06 | 姚立和 | Automatic stepless speed change device for bicycle |
| WO2014161365A1 (en) * | 2013-04-03 | 2014-10-09 | 宁波能威电机科技有限公司 | Motor for use on assisted bicycle |
| CN107685828A (en) * | 2017-09-19 | 2018-02-13 | 八方电气(苏州)股份有限公司 | Electric bicycle infinitely variable speed transmission |
| CN109693496A (en) * | 2017-10-24 | 2019-04-30 | 湖南捷行科技有限公司 | A kind of wheel hub speed change gear |
| CN109693496B (en) * | 2017-10-24 | 2024-01-23 | 广东洛梵狄智能科技有限公司 | Hub speed change device |
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