CN1049632C - Bicycle with intellectual electric driver - Google Patents
Bicycle with intellectual electric driver Download PDFInfo
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- CN1049632C CN1049632C CN96109832A CN96109832A CN1049632C CN 1049632 C CN1049632 C CN 1049632C CN 96109832 A CN96109832 A CN 96109832A CN 96109832 A CN96109832 A CN 96109832A CN 1049632 C CN1049632 C CN 1049632C
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- bicycle
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- torque
- pedal
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- 241000222712 Kinetoplastida Species 0.000 claims description 2
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- 238000006073 displacement reaction Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
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- 229910052782 aluminium Inorganic materials 0.000 description 2
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- 238000005259 measurement Methods 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
The present invention belongs to the technical field of an electric power-assisted bicycle, which comprises a bicycle body, a pedal torque detecting device, an electric driving device and an electric controlling device, wherein the bicycle body is composed of a handlebar, a bicycle frame, a saddle centre shaft, pedals and wheels, and the pedal torque detecting device is a rotating phase comparing and torque detecting device capable of simultaneously detecting a rotary speed. Torque detection and rotary speed detection can be simultaneously completed by a unique sensor system which can be combined with the electric driving device into a whole so as to enable the present invention to have the advantages of concise and compact design of the whole bicycle, accurate and reliable electric power control, battery energy saving and cost reduction.
Description
The invention belongs to the electromotive power assisted bicycle technical field, particularly the reform of the pedal torque in the bicycle with intellectual electric driver, speed detecting unit and unit design.
Electromotive power assisted bicycle is the hand-held design vehicle of a kind of manpower driving and driven by power and usefulness, onrelevant between general electromotive power assisted bicycle manpower driving and the driven by power.And advanced bicycle with intellectual electric driver will at first be measured the torque (or claiming pedal moment) of bicyclist's pedal power and the size of rotating speed, and control to adjust the size of the horsepower output and the electric current of electrical motor as control signal with this torque value and tachometer value, not only alleviate the effect of manpower but also power saving to reach.The microcomputerized control technology is as extensively adopting in each technical field than proven technique at present, so the gordian technique of this intelligent mode is how to measure the size of each moment pedal torque and the size of rotating speed, so that carry out Based Intelligent Control according to these two numerical value in good time.And the difficult point of measuring pedal torque is that when bicyclist's pedal application of force each parts that transmit this pedal torque are all among gyrating.If directly use various sensors to survey pedal powers, then these sensors also certainly will gyrate, and the lead-in wire that signal is spread out of from sensor also will be among the rotation winding that does not stop and become a unmanageable problem.Simultaneously, this torque checking system will keep stable, reliable and high duplication in the process of riding all the year round.For solving these special technique difficult points in the measurement of electromotive power assisted bicycle pedal torque, different testing agencies has appearred.Simultaneously, round this core of testing agency, also to consider the general structure design of electromotive power assisted bicycle on the whole.
For example, a Chinese patent (application number is 9620018231) of the applicant's application is to install eccentric stiffener on bicycle middle shaft additional.This eccentric stiffener is by the two-layer antifriction-bearing box supporting with certain offset.The bicycle pedal axis rotates in the internal layer antifriction-bearing box.Because off-centre is arranged, when the bicyclist applies pedal power, outer eccentric stiffener will overcome spring force and deflect.Because skin only deflects rather than is gyrating as internal layer, so easily this amount of deflection is converted to the variation of straight-line displacement.Measure this variable signal, can measure pedal torque.But adopt the bicycle of this scheme, wherein axle construction is much thick, complicated in the axial ratio ordinary bicycle.Simultaneously, rotating speed also needs to be detected separately by an other cover rotating speed detecting sensor system.
The example of another prior art also is that foot-operated torque measurement mechanism is placed on the bicycle middle shaft.On axis, arrange bar-shaped elastic body.When applying pedal power, elastic body deforms, and coaxial cam will make slide block overcome spring and axial displacement takes place.Because slide block is gyrating with axis, the end face of slide block need promote a fork that does not rotate with axis again.Measure the variation of fork straight-line displacement vertically, and with the signal of this signal as pedal torque.This structure is also very complicated, and rotating speed needs to be detected by the rotating speed detecting sensor system that is provided with separately in addition equally.
Another one example application number of the prior art is 95103616.5, is on hind axle, and elastic body shift fork and screw inclined plane cam are made on the same disk.When applying pedal power, the spiral inclination wedge surface promotes one can be along the nylon sliding part of axial direction slip.There is a circular electric conductor the end of nylon spare in rotation, and in its disposed outside a motionless coil is arranged, and when axial straight-line displacement took place nylon spare, the inductance of coil changed.This longitudinal travel variable signal has promptly been represented the variation of pedal torque.But this kind structure is complicated too.Equally, this mechanism also must be provided with independent rotating speed detecting sensor system in addition.
In sum, prior art common ground is: the pedal torque testing agency of existing electromotive power assisted bicycle all needs to convert the pedal torque that bears on the revolving part to non-rotary linear displacement signal.And for finishing this conversion, structure is all very complicated, and another common ground is that independent rotating speed detecting sensor system all need be set in addition.This just makes structure more complicated.Simultaneously, complicated for these structures are set, take testing agency than the macrostructure size, make the electromotive power assisted bicycle overall structure huger mixed and disorderly complexity and unreasonable that seems.
The objective of the invention is to design a kind of by size that detects pedal power and the bicycle with intellectual electric driver that the speed of a motor vehicle is controlled electric power for the weak point that overcomes prior art, wherein, adopt later-model phase comparative detecting device, can finish torque simultaneously by a unique sensing system detects, rotating speed detects and can be combined into one with electric driver, makes entire machine design succinct, compactness, electric power control accurately, and is reliable and cost is reduced.
A kind of bicycle with intellectual electric driver of the present invention, comprise the bicycle body of forming by handlebar, vehicle frame, vehicle seat axis and pedal and wheel, the pedal torque detecting device, electric driver and electric control unit, said pedal torque detecting device adopts the rotation phase comparative torque master that can detect rotating speed simultaneously.
Said torque master comprises sensor, also comprise the one group of turning unit that is arranged in any one rotating shaft of bearing or transmitting pedal torque, this turning unit is bearing in elastomeric two ends respectively, invest one group of relative rotation detection ring on this turning unit respectively, have on the same circumference of said each detection ring to be the angle mark member that known spacings is arranged more than two, said detecting sensor is arranged on the not kinetoplast with respect to the position of angle mark member.
Said sensor can be a kind of of transmission-type or reflective photoelectric sensor, transmission area, echo area or the grating that said angle mark member is a certain angle a kind of.
Said sensor also can be a kind of of condenser, inductance type or eddy current sensor, and said angle mark member is plane, angle grid line or the angle tooth in a differences in angle zone of medium or metal formation.
Said sensor also can be Magnetic Sensor, and said angle mark member is plane, angle grid line or the angle tooth of an angular regions of magnetic material formation.
The said torque master of the present invention also can be arranged on the said axis, and electric driver can be arranged in front-wheel or the rear wheel hub and with wheel hub and be an integral body.
Said torque master also can constitute an intelligent electric runner hub within actuating device is arranged on the hub shell that rotates at two ends.
Said electric wheel hub can be arranged on the trailing wheel.
Principal feature of the present invention is to adopt its principle of work of phase comparative pedal torque testing agency to be: after pedal was stressed, this group turning unit was also with torque suspension, and the elastic body that is bearing between the two halves of turning unit will deform.Because elastomeric distortion will relatively rotate between coaxial two parts turning unit.
Be attached to two groups of angle mark members on the detection ring on this two halves respectively, for example transmission area also turns over an angle each other.When not stressing, the transmission area on the halves hides light tight mutually, because the angle that staggers, two transmission areas will be overlapped and printing opacity.Pedal power is big, and the two detection rings angle that staggers is big, and two transmission area laps are big more, and the printing opacity time is long more.But because the rotating speed speed is changing constantly, so the time of printing opacity is the size of authentic representative relative rotation not, also need and be separated by printing opacity time of transmission area of known angle of period profile compares, could really draw the accurate size of corner mutually, thereby accurately measure pedal torque.A principle of comparing that Here it is.And the printing opacity situation of the known angle of the period profile that usefulness has measured also can draw tachometer value simultaneously exactly by analytical cycle signal or known angle signal.During detection, can go out the integrated signal of two detection rings with a sensor, also available two sensors detect the signal of each detection ring respectively.Fig. 1 is under four kinds of situations, the signal graph that sensor receives.(A) integrated signal of one group of detection dish receiving with a sensor of expression, the value of pedal torque is by relative rotation signal t
1(i.e. the printing opacity time of an overlapping transmission region) and known angle signal T
1The ratio of (through the time between two adjacent overlapping transmission regions) is determined, and tachometer value can be by known angle signal T
1Directly determine.(B) in, the size of pedal torque is the same with (A), but the rotating speed difference.So t
2And T
2Numerical value and (A) in different, but t
2And T
2Ratio and t
1And T
1Ratio equate.(C) in, the figure of expression signal when pedal torque becomes big, t at this moment
3And T
3Ratio increase.(D) represent when detecting two relative rotation detection dishes respectively relative rotation signal t with two sensors
4Extraction method.And known angle signal both can use T
4, also can use T
4', among the figure up and down two signals be two sensors detected signals respectively.
The present invention proposes to utilize and rotate the principle of comparing in the position, directly measure the new solution of the relative rotation of the one group of turning unit that bears torque, take this directly to measure the pedal torque on the parts that rotating, and need not convert thereof into non-rotary displacement signal, also can measure the necessary speed revolution value of Based Intelligent Control simultaneously simultaneously.
The sensor of the invention described above also can be condenser or inductance type or eddy current sensor, and said angle mark member then is a kind of of the plane in the certain angle zone that constitutes of medium or metal or one section angle grid line or angle tooth.Said sensor can also be Magnetic Sensor, said angle mark the member also plane in the certain angle zone that constitutes of magnetic material or one section angle grid line, angle tooth.
The present invention has following preceence:
The first, because the rotation phase comparative torque master that the present invention adopts takies scantling of structure hardly, and also can measure required tachometer value simultaneously, so can design more rationally exquisite bicycle with intellectual electric driver on the whole, it is little to make whole Electrical Bicycle have a volume, advantage in light weight, simple for structure.
The second, because the rotation phase comparative detecting device that the present invention adopts can be measured torque and tachometer value more accurately, thereby it is exquisite that intelligent control is improved more.Under similarity condition, the total mileage after battery once charges can increase greatly than common electric bicycle.
Three, because few, the good stability of detecting device used unit.Institute is so that the Electrical Bicycle complete machine is reliable more, stable in the long-term use process.
Four, the assembling of this bicycle with intellectual electric driver exchange is very simple, convenient with adjustment.
Description of drawings:
Fig. 1 is the signal graph of detecting device among the present invention.
Fig. 2 is the overall structure scheme drawing of a kind of embodiment of the present invention.
The structural representation of the electric wheel hub that Fig. 3 is in the embodiments of the invention to be adopted.
Fig. 4 is the principle schematic of detecting device of the present invention.
Be described with reference to the accompanying drawings as follows:
Fig. 2 is the overall structure scheme drawing of a kind of embodiment of the present invention.
Bicycle body 1 keeps the function of ordinary bicycle among Fig. 2, and chargeable battery 4 provides electric energy.The collecting of electrical controls 2 is fixed on the body 1, at trailing wheel the intelligent electric runner hub 3 that electric driver and phase comparative torque master are integrated is installed.
The structure of the intelligent electric runner hub in the present embodiment as shown in Figure 3, it comprises the wheel hub shell that is combined into unitary rotation by rotating left and right sides end cap 6,8 and hub body 7, and the electric driver mechanism 9 and the testing agency's three parts that are provided with are wherein formed.Wherein electric driver mechanism is made up of the motor and the gear reduction that are installed in the motionless aluminium backing.Its concrete structure is not shown, can adopt any electric driver mechanism in the electric wheel hub of existing various electric power-assisted vehicles.The last side of same axle of electric driver mechanism is equipped with two plate-like turning units 5 and 6 of testing agency, two turning unit facing surfaces respectively have four half slots, form the slotted eye of settling spring 12, the excircle of two turning units is fixed with two relative rotation detection rings 11 respectively, same circumference equal intervals at every detection ring has six groups of printing opacity slotted holes, photoelectric detector 10 is installed in two arm inside face places that are fixed on the type support on the aluminium backing, and is corresponding with the printing opacity slotted hole position of detection ring.Each printing opacity slotted hole angle is 20 °, as shown in Figure 4.Right rotation parts 5 link to each other by screw thread with flywheel among Fig. 3.Its working process as: pedal torque passed to the right rotation parts by flywheel when pedal was stressed, pass to anticlockwise parts 6 by spring again, and the left rotation and right rotation parts are produced relative rotation, be separately fixed at printing opacity slotted hole on the detection ring on two turning units, do not hide mutually when stressing, a relative rotation and printing opacity each other stagger after stressed.At this moment opto-electronic pickup receives relative rotation information, with known angle information, then can calculate torque value and pass the speed value, these data will be the foundations of electric driver mechanism being carried out intelligent control, under the control of function unit, behind the motor process two-stage gear reduction of electric driver mechanism, then can promote to take turns the hub shell unitary rotation.
Fig. 4 is testing agency's principle schematic.Bear pedal torque on the left and right sides two halves turning unit 17.Wherein half imports pedal torque, second half output.The two ends of elastic body 18 are bearing in respectively on the left and right two halves turning unit 17.Two relative rotation detection rings 13 are separately fixed on the two halves turning unit 17.Have six groups of loop holes 14 that equidistantly become 20 ° of angles at relative rotation detection ring 13 upper edge circumference, opto-electronic pickup 16 is accepted the optical signal of the overlapping light transmission part 15 of two detection rings.
Claims (8)
1, a kind of bicycle with intellectual electric driver, comprise the bicycle body of forming by handlebar, vehicle frame, vehicle seat axis and pedal and wheel, the pedal torque detecting device, electric driver and electric control unit is characterized in that said pedal torque detecting device adopts rotation phase comparative torque master; Said rotation phase comparative torque master comprises the one group of turning unit that is arranged in any one rotating shaft of bearing or transmitting pedal torque, this turning unit is bearing in elastomeric two ends respectively, invest one group of relative rotation detection ring on this turning unit respectively, have on the same circumference of said each detection ring to be the angle mark member that known spacings is arranged more than two, and be arranged on respect to the detecting sensor on the not kinetoplast of the position of angle mark member.
2,, it is characterized in that said detecting sensor is a kind of of transmission-type or reflective photoelectric sensor, transmission area, echo area or the grating that said angle mark member is a certain angle a kind of as the said bicycle with intellectual electric driver of claim 1.
3, as the said bicycle with intellectual electric driver of claim 1, it is characterized in that said detecting sensor is a kind of of condenser, inductance type or eddy current sensor, said angle mark member is plane, angle grid line or the angle tooth in the certain angle zone of medium or metal formation.
4, as the said bicycle with intellectual electric driver of claim 1, it is characterized in that said detecting sensor is a Magnetic Sensor, said angle mark member is plane, angle grid line or the angle tooth in the certain angle zone of magnetic material formation.
5,, it is characterized in that said torque master is arranged on the said axis as claim 1,2,3 or 4 said bicycle with intellectual electric driver.
6,, it is characterized in that said torque master and actuating device are arranged on formation one intelligent electric runner hub within the hub shell that rotates at two ends as claim 1,2,3 or 4 said bicycle with intellectual electric driver
7,, it is characterized in that said electric wheel hub is arranged on the trailing wheel as the said bicycle with intellectual electric driver of claim 6.
8,, it is characterized in that said electric driver is arranged in front-wheel or the rear wheel hub, and be an integral body with wheel hub as the said bicycle with intellectual electric driver of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96109832A CN1049632C (en) | 1996-09-20 | 1996-09-20 | Bicycle with intellectual electric driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96109832A CN1049632C (en) | 1996-09-20 | 1996-09-20 | Bicycle with intellectual electric driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1149025A CN1149025A (en) | 1997-05-07 |
| CN1049632C true CN1049632C (en) | 2000-02-23 |
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ID=5120647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96109832A Expired - Fee Related CN1049632C (en) | 1996-09-20 | 1996-09-20 | Bicycle with intellectual electric driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1049632C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105071732A (en) * | 2015-09-10 | 2015-11-18 | 浙江绿源电动车有限公司 | Driving system, motor control method and power-assisted electric vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US540915A (en) * | 1895-06-11 | Machine | ||
| CN1113473A (en) * | 1994-03-29 | 1995-12-20 | 三洋电机株式会社 | Electric bicycle |
| CN1123240A (en) * | 1994-08-18 | 1996-05-29 | 本田技研工业株式会社 | Electric-power supplemented bicycle |
-
1996
- 1996-09-20 CN CN96109832A patent/CN1049632C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US540915A (en) * | 1895-06-11 | Machine | ||
| CN1113473A (en) * | 1994-03-29 | 1995-12-20 | 三洋电机株式会社 | Electric bicycle |
| CN1123240A (en) * | 1994-08-18 | 1996-05-29 | 本田技研工业株式会社 | Electric-power supplemented bicycle |
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| Publication number | Publication date |
|---|---|
| CN1149025A (en) | 1997-05-07 |
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