CN102795292B - Booster bicycle provided with sensor with evenly distributed magnetic blocks on flywheel - Google Patents
Booster bicycle provided with sensor with evenly distributed magnetic blocks on flywheel Download PDFInfo
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Abstract
The invention relates to a booster bicycle provided with a sensor with a plurality of evenly distributed magnetic blocks on a flywheel, in particular to an electric booster bicycle used for providing booster signals at a plurality of point positions in a way of magnetic induction. The sensor comprises a sensing element, a booster model processor, a digital-to- analog (D/ A) converter and an operational amplifier which are sequentially connected, wherein the flywheel taken as the sensing element is fixedly provided with the plurality of permanent magnet blocks, and every two adjacent permanent magnet blocks are opposite in magnetic polarity; a Hall of the sensing element is arranged on a frame close to the permanent magnet blocks; and the operational amplifier is connected with a motor controller. The booster bicycle has the advantages that square-wave signals can be obtained by the Hall, so that the sensor can output a manually set booster model through digital processing, the boosting is reasonable in the starting point, the finishing point and the force, a human can cooperate with a machine, and the electricity is saved.
Description
Technical field
The invention belongs to the technical field of morpet, particularly relate to and on rotatable parts, carry out multi-point magnetic induction the electric assisted bicycle of power-assisted signal is provided.
Background technology
The Chinese patent 201020295192.0 " hooking pawl formula moment sensor " of Yebao Vehicle Material Industry's application discloses a kind of morpet sensing device, sensing device comprises that magnetic part and elastic component coordinate, and experience the sensing device of moment.After period of service is long, the elasticity modulus variation of elastic component will cause the control effect of transducing signal and controlled motor to change, and power-assisted effect becomes with people's power-assisted and need to mismatch.And by the project organization complexity of elastic component, manufacturing cost is high.
The Chinese patent 01201843.0 " automatic detecting device of electric booster bicycle " of University of Science & Technology, Beijing's application discloses a kind of automatic detecting device of electric booster bicycle, no touch detects to be pedaled power, speed and turns to, this device is established respectively magnetic sheet on the inside and outside wheel disc of relative motion, on interior wheel disc, there is spring, between inside and outside wheel disc, with spring reset, the electric signal of surveying the magnetic sheet generation of relative motion on inside and outside wheel disc with two Halls on support represents to pedal power, speed and turns to.
Shortcoming (1) is not durable with elastic component: after period of service is long, the elasticity modulus variation of elastic component will cause the control effect of transducing signal and controlled motor to change, and power-assisted effect becomes with people's power-assisted and need to mismatch, complex structure, and cost is high.
Shortcoming (2) sine wave output makes magnetic sheet group Edge Distance can not be less than 4 centimetres, generally take 5 centimetres as good, and make to establish magnetic sheet group number very little, man-machine cooperation is undesirable: each magnetic sheet group is identical, Hall output is that sinusoidal waveform is as control signal, must there is certain peak valley difference as control signal sinusoidal waveform, because needing certain length, the magnetic sheet group of this patent represents forward and reverse motion, be to establish at most 8 magnetic sheet groups in the rolling disc circular trace of 20 centimetres at diameter, generally, take 5 as good, Hall just can have the sine wave signal of controlling function.That is to say, this technical scheme of 01201843.0 patent, for morpet, magnetic sheet group limited amount is only in 8, and very little, man-machine cooperation is undesirable for control signal.If but more than 8 magnetic sheet groups, in the time that people's treadmill is very fast, the signal graph of Hall output is close to a horizon, this signal is not controlled function, can not control electrical motor, while making it need power-assisted especially, loses assist function.
Shortcoming (3) signal blind zone reaches miter angle, when needing power-assisted when startup, really can not get power-assisted: well-known, people steps on bicycle pedal in summit moment minimum, the region that needs most power-assisted from leaving 10-45 degree angle, summit, but the angle between the each magnetic sheet group of this patent is 45 degree, leave summit 10-45 degree angular zone neither one magnetic sheet group at stretcher, also with regard to neither one control signal, when consequently needing most power-assisted, but the motor of morpet really can not power-assisted.
In a word, except with the not durable complex structure again of elastic component, because of the fit structure feature of Hall and magnetic sheet group, rotating disk size diameter is in 20 centimetres, and having placed restrictions on magnetic sheet group quantity is 8 groups, and magnetic sheet group number can not arbitrarily increase, make man-machine cooperation undesirable, and start time can not get power-assisted, power-assisted demand is not mated with power-assisted is provided, cyclist's traveling comfort is poor; As increased by force magnetic sheet group quantity, its transducing signal loses again Power assisted control function.
The Chinese patent 03264387.X " timing sensor of electric boosting bicycle " of Wang Naikang application discloses without elastic component, only with moving, fixed two rotating disks, above Moving plate, inlay two magnetic magnet steel, above price fixing, inlay three Hall elements, bicycle pedal circles, each Hall produces two pulses, and three Hall elements produce six pulses.Divide folding can obtain three features, four shortcomings are as follows:
Feature (1) is for obtaining six impulse singlas, can only be each permanent magnetic steel same pole in one side: each Hall will produce two pulses, can only be the same face that the same pole of two magnetic magnet steel is located at Moving plate,, in certain one side of Moving plate, two magnetic magnet steel be all the Huo Doushi South Pole, the arctic.If at the same face of Moving plate, a permanent magnetic steel is the arctic, another is the South Pole, and pedal circles, and each Hall just can only produce a pulse, and three Halls just only have three pulses, and this does not just conform with this patent specification and has recorded.In order to increase pulse count, improve and control effect, can only be that each permanent magnetic steel same pole is in one side.
Feature (2) permanent magnetic steel is used for representing pedal fixed position, three Halls represent pedal travel position: because pedal and Moving plate are to synchronize rotation, so a permanent magnetic steel is fixed respectively in two positions on the Moving plate corresponding with two pedals, where some pedals turn, and where corresponding permanent magnetic steel also turns; But only turn in the position that has Hall, could send control signal by Hall, the motor of commander's morpet produces the power-assisted needing and rotates.
The position of feature (3) middle different period pedal travels because Hall can not represent to circle, just can not be only with a Hall: the different periods of pedal in circling, power-assisted demand is had to very big difference, embody the variation of this power-assisted demand, this patent is located at respectively 180 degree angles with three interior positions with three Halls, two magnetic magnet steel are located at respectively two pedal positions, and pedal turns in the position that has Hall, and this Hall represents that with regard to output signal pedal has arrived the position of this Huo Yuan.But there is again shortcoming below with multiple Halls.
Have three shortcomings as these features of morpet sensor:
Shortcoming (1) is with two fixed positions that do not have the permanent magnetic steel of otherness to represent respectively two pedals, just can only represent with multiple Halls the turned position of pedal: two magnetic magnet steel do not have otherness, advantage is can be regardless of the fixed position that represents respectively two pedals of left and right pin, make the raw power-assisted demand of its left and right human hair combing waste, can produce identical motor power-assisted effect; But shortcoming is permanent magnetic steel itself just can not represent the turned position of pedal, and can only be located at the turned position that different angle positions represents pedal with multiple Halls, thus can not be only with a Hall, and must use multiple Halls.
Shortcoming (2) can not be only with a Hall, and three Halls must cause three control signals to have original segmentation error, make the distortion of power-assisted demand model, naturally produce power-assisted output inconsistent with power-assisted demand: no matter morpet is one or two motor, its transducing signal of controlling motor can only just can reach the object of controlling motor with a transducing signal input electric machine controller; And three Hall control motors for this patent must be merged into one three of a three Halls control signal and merge after control signal and could input electric machine controller.The parameter sensing of three Halls can not be the same, particularly due to after variation of ambient temperature, period of service length, the parameter sensing of three Halls may be widely different, when its result causes identical power-assisted demand, the output of different Halls be different voltages, cause motor to produce different power-assisted output, power-assisted output is inconsistent with power-assisted demand; In like manner when identical power-assisted demand, the output of different Halls may be identical voltage again, cause motor to produce the output of same power-assisted, also produce power-assisted output and the inconsistent problem of power-assisted demand.
Shortcoming (3) merges control signal and easily produces signal drift, making to merge control signal does not mate with electric machine controller, power-assisted demand model distortion: due to variation of ambient temperature, after period of service is long, the parameter sensing of three Halls may be widely different, three control signal point of connection of three Halls must change, the merging control signal that identical power-assisted demand produces will produce the signal drift of segmenting, merge control signal and produce signal distortion as an entirety, it is the distortion of power-assisted demand model, any one that causes that electric machine controller selects three control signals all can produce power-assisted output and the inconsistent problem of power-assisted demand as benchmark.
Shortcoming (4) sensing site can not arbitrarily increase, sensing site very little, motor operation is just not steady, make people by bike feel very uncomfortable: owing to having shortcoming (1) and shortcoming (2) all to cause because Hall quantity is greater than one, clearly Hall quantity is measured more and more, and shortcoming (1) and shortcoming (2) performance are more serious.So the morpet that this patent provides can only be to make people by bike feel the morpet that traveling comfort is very bad.
Shortcoming (5) signal blind zone reaches 42 degree angles, when needing power-assisted when startup, really can not get power-assisted: well-known, people steps on bicycle pedal in summit moment minimum, the region that needs most power-assisted from leaving 10-45 degree angle, summit, but the angle between the each Hall of this patent is 42.5-43.5 degree, leave summit 10-42 degree angular zone neither one Hall at stretcher, also with regard to neither one control signal, when consequently needing most power-assisted, but the motor of morpet really can not power-assisted.
In a word, this patent is the technical scheme with multiple Hall control assistant modes, because can only represent with multiple Halls the turned position of pedal, multiple control signals of multiple Halls must have original error, it merges control signal and easily produces again signal drift, all can cause the distortion of power-assisted demand model, i.e. the identical power-assisted demand of different time, but obtain different power-assisted effects; Hall quantity is measured more and more, and the distortion of power-assisted demand model is more serious, the quantity of having placed restrictions on Hall, Hall small number and to produce motor operation just not steady, make people by bike feel very uncomfortable, and can not get power-assisted while starting.Make it want power-assisted demand model undistorted, and want motor to operate steadily in these two problems and always attend to one thing and lose sight of another, can not get both.
Summary of the invention
The object of this invention is to provide only to obtain the speed signal of bicycle pedal and signal is carried out to digitized processing by each permanent magnets on a Hall and flywheel and become the morpet that has best power-assisted model signals sensor; Be a kind of in Hall can induction region, can increase permanent magnets quantity as far as possible, utilize to greatest extent bicycle displacement information, the morpet that sensor output information is many; The power-assisted that cyclist's power-assisted demand provides with motor is mated, the morpet that motor operates steadily.
Design of the present invention is: in a Hall can receptive field, on a flywheel, carry out magnetic polarity variation by identical multiple permanent magnets, the signal that Hall is produced is square wave, controls with better function, more.For morpet, the quantity of information of expressing motion of foot state is more.
The flywheel that the present invention is following and rolling disc are same meaning.
Structure of the present invention is:
On flywheel, establish the morpet that many magnetic patch are uniformly distributed sensor, comprise Electrical Bicycle and sensor, have flywheel 1 on the rear wheel of Electrical Bicycle, Electrical Bicycle has vehicle frame 53, on Electrical Bicycle, battery 55 connects electric machine controller 29, and electric machine controller 29 connects the motor 30 on wheel; It is characterized in that:
The structure of sensor and the annexation of parts are as follows:
Sensor comprises the sensitive member, power-assisted model treater 21, D and A converter 27 and the op amp 28 that connect successively;
［ 1 ］ sensitive member is the element that the rotational motion of flywheel 1 is become to square-wave signal output;
Sensitive member comprises a flywheel 1 and identical many pieces of permanent magnets 2, the size of many pieces of permanent magnets 2 is identical, shape is identical, magnetic flow is identical, on flywheel 1, be fixedly installed many pieces of permanent magnets 2, these many pieces of permanent magnets 2 equably rounded track distribute, and every piece of permanent magnets 2 is identical to the distance between identical, the adjacent two pieces of permanent magnets 2 of distance at circular rail trace 5 circle centers, place; In certain one side of flywheel 1, the magnetic polarity of adjacent two pieces of permanent magnets 2 is contrary, and the magnetic polarity distribution mode of the upper whole permanent magnets 2 of certain one side of flywheel 1 is the N utmost point, the S utmost point, the N utmost point, the S utmost point, the N utmost point, the S utmost point
Also comprise a Hall 3, Hall 3 is positioned at certain one side of flywheel 1, and Hall 3 is located at the position that approaches permanent magnets 2 and can experience permanent magnets 2 magnetic flow, between Hall 3 and permanent magnets 2, has spacing; Hall 3 is the Halls that opposite magnetic polarities produced to square wave output signal.
［ 2 ］ power-assisted model treater 21 is signal form convs that digital signal that flywheel 1 is rotated becomes power-assisted model digital signal;
Power-assisted model treater 21 comprises analogue to digital conversion and velocity calculator 24, power-assisted model memory device 25 and power-assisted model calculator 26;
Analogue to digital conversion is connected with the Hall 3 of sensitive member with velocity calculator 24; The square-wave signal that analogue to digital conversion and velocity calculator 24 are inputted Hall 3 calculates the rotating speed that pace of change between each square wave represents flywheel 1;
Analogue to digital conversion is connected with power-assisted model calculator 26 with velocity calculator 24, and power-assisted model memory device 25 is also connected with power-assisted model calculator 26; A certain power-assisted pattern function in the flywheel 1 selection of speed power-assisted model memory device 25 of power-assisted model calculator 26 use analogue to digital conversions and velocity calculator 24, and by flywheel 1 speed conditions substitution power-assisted pattern function, calculate applicable power-assisted model digital signal, power-assisted model calculator 26 is exported power-assisted model digital signal;
［ 3 ］ D and A converter 27 is the analog signals that power-assisted model digital signal converted to power-assisted model;
Power-assisted model calculator 26 is connected with D and A converter 27, and D and A converter 27 converts power-assisted model simulation signal to the power-assisted model digital signal of power-assisted model calculator 26;
［ 4 ］ op amp 28 is the power-assisted model simulation signals that the power-assisted model simulation signal of D and A converter 27 converted to the range of nominal tension;
The annexation of sensor and Electrical Bicycle is: Hall 3 is fixed on the position that can experience permanent magnets 2 magnetic flow on the vehicle frame 53 that approaches permanent magnets 2, and in sensor, the signal input part of the signal output lead of op amp 28 and the electric machine controller 29 of Electrical Bicycle is connected.
One, the explanation to working sensor principle: with principle of work, sensor is divided into signal acquisition and signal processing, so that structural relation and the effect of all parts of explanation sensor.Signal acquisition is rationally arranged and is carried out and obtain semiotic function by flywheel 1, permanent magnets 2 and the Hall 3 of sensitive member; Signal is processed and is connected successively by power-assisted model treater 21, D and A converter 27 and op amp 28, and the signal that Hall 3 is exported is processed into the power-assisted model simulation signal that the electric machine controller 29 of Electrical Bicycle can use.
［ one ］ explanation to sensitive member:
While using sensitive member, flywheel 1 will rotate, so flywheel 1 claims again rolling disc, the center of rotation is exactly Yuan center, 2 one-tenth annular arrangement distribution places of multiple permanent magnets.
Multiple permanent magnets 2 are in annular arrangement 6 scopes, the object that becomes annular arrangement to distribute is only to experience with a Hall 3 state of kinematic motion of whole permanent magnets 2 on rolling disc, experience the kinematic velocity of whole permanent magnets 2 on rolling disc, and the variation of speed, or title acceleration/accel, this Hall 3 just can be expressed the state of kinematic motion of permanent magnets 2 with a continuous electric signal, because it is on flywheel 1 that whole permanent magnets 2 is separately fixed at rolling disc, the continuous electric signal that Hall 3 produces just can be expressed the state of kinematic motion of rolling disc again.If this continuous electric signal is used for controlling other object, this continuous electric signal is exactly control signal.If for controlling the motor of morpet, also need with micro controller system or other electron component as sensing signal processor, position in control signal, speed, acceleration/accel key element are converted to the power-assisted signal that needs power-assisted how many, the function converting is exactly power-assisted demand model, or claims power-assisted model.
The magnetic polarity of adjacent two magnetic patch 2 is very important technical characterictic on the contrary, all the magnetic polarity distribution mode of permanent magnets 2 is the N utmost point, the S utmost point, the N utmost point, the S utmost point, the N utmost point, the S utmost point ... make Hall 3 export high and low alternate square-wave signal, because the rolling disc stopping as limited size, rotating and within one week, will obtain as far as possible many accurate variable signals, should be to select square wave certainly.The time that the peak-to-valley value of square-wave signal changes is short, can be within the regular hour, produce as far as possible many signals that has control meaning.The contrary structure generation square wave of magnetic polarity of adjacent two magnetic patch 2, and the identical structure generation sinusoidal waveform of the magnetic polarity of adjacent two magnetic patch 2, during especially for morpet, generally placing restrictions at diameter as the rolling disc of sensing element is 10-15 centimetre, to obtain the signal of controlling function in this limit scope, rotate one week, produce square wave than producing the many 7-9 of the available pulse number of sinusoidal waveform doubly.Nature, to the control effect of morpet more, people coordinates with car better for the magnetic polarity of adjacent two magnetic patch 2 contrary structure, and rider people feels more comfortable.
［ two ］ explanation of power-assisted model treater 21: power-assisted model treater 21 is signal form convs that digital signal that flywheel 1 is rotated becomes power-assisted model digital signal;
Power-assisted model treater 21 comprises analogue to digital conversion and velocity calculator 24, power-assisted model memory device 25 and power-assisted model calculator 26; The square-wave signal of Hall in sensitive member 3, become the digital signal that represents flywheel 1 velocity of rotation with analogue to digital conversion and velocity calculator 24, then from power-assisted model memory device 25, select to be applicable to the power-assisted math modeling of certain rotating speed by rotating speed digital signal; Finally, rotating speed digital signal substitution power-assisted model calculator 26, calculate the power-assisted model digital signal that is applicable to this speed.Be that power-assisted model calculator 26 just can be exported power-assisted model digital signal.
［ three ］ explanation of logarithmic mode conv 27: D and A converter 27 is the analog signals that power-assisted model digital signal converted to power-assisted model.
Power-assisted model calculator 26 is connected with D and A converter 27, and D and A converter 27 converts power-assisted model simulation signal to the power-assisted model digital signal of power-assisted model calculator 26.To export the analog signal of power-assisted model to electric machine controller 29 that can only Analog signals.
［ four ］ explanation to op amp 28: op amp 28 is the power-assisted model simulation signals that the power-assisted model simulation signal of D and A converter 27 converted to the range of nominal tension.
D and A converter 27 is connected with op amp 28, although the power-assisted model simulation signal of D and A converter 27 has solved power-assisted model problem, but the voltage of power-assisted model signals can't meet the needs of electric machine controller 29, so also power-assisted model simulation signal is converted to the power-assisted model simulation signal that the range of nominal tension needs with op amp 28, just can be transferred to electric machine controller 29.
Two, sensor and Electrical Bicycle are connected to form the explanation of morpet:
For in kind installation is described, be divided into mechanical part and sensing element from aspect in kind sensor, each about structural relation in kind with Electrical Bicycle so that each material object of sensor to be described.Sensing element comprises Hall 3, power-assisted model treater 21, D and A converter 27 and op amp 28, Hall 3 is fixed on to vehicle frame 53 positions that approach permanent magnets 2, makes Hall 3 can experience the turn signal of permanent magnets 2 on flywheel 1.Also the Hall of sensing element 3, power-assisted model treater 21, D and A converter 27 and op amp 28 can be fixed on a device.But because Hall 3 will be fixed on the peculiar position that can experience permanent magnets 2 magnetic flow, Hall 3 and power-assisted model treater 21, D and A converter 27 and op amp 28 these three isolation of components can be opened, only power-assisted model treater 21, D and A converter 27 and op amp 28 these three parts are fixed on a device.Power-assisted model treater 21, D and A converter 27 and op amp 28 these three parts in whole sensing elements or sensing element are fixed on a device, be conducive to a tangible device carrying sensing element, sensing element be fixed on the vehicle frame 53 of Electrical Bicycle with carrier.
In sensor of the present invention, the signal of each Signal Processing Element output is:
Power-assisted model treater 21 is exported power-assisted model digital signal;
Magnetic patch rotating speed calculator 24 calculates and exports the rotating speed digital signal of flywheel 1;
It is for subsequent use that power-assisted model memory device 25 has multiple power-assisted pattern function, exports the digital signal of selected power-assisted pattern function;
Power-assisted model calculator 26 calculates and exports the power-assisted model digital signal for controlling function;
The power-assisted model simulation signal that power-assisted model digital signal is converted to is exported in D and A converter 27;
Op amp 28 is exported the power-assisted model simulation signal that power-assisted model simulation signal is converted to the range of nominal tension;
What thermally dependent resistor R6 assurance op amp 28 was exported is the power-assisted model simulation signal of the range of nominal tension, i.e. standard power-assisted model simulation signal.
Be provided with thermally dependent resistor R6 for solving power-assisted model simulation signal drift problem, thermally dependent resistor R6 is connected between the input end and mouth of op amp 28.
Power-assisted model treater 21 is micro controller systems 31, is connected with clock circuit 32 on micro controller system 31.Complete the function of analogue to digital conversion and velocity calculator 24, power-assisted model memory device 25 and power-assisted model calculator 26 with micro controller system 31.The clock signal of clock circuit 32 is effects that the square-wave signal for Hall 3 is inputted is distinguished, and the length of preferred each clock signal is 0.001 second.
The mechanical part of sensor and sensing element structural relation: the mechanical part of sensor comprises flywheel 1, the sensing element of sensor comprises multiple permanent magnets 2, Hall 3, micro controller system 31, D and A converter 27 and op amp 28; In sensing element, connected Hall 3, micro controller system 31, D and A converter 27 and 28 4 electronic components of op amp are located on a circuit card 59 successively; The position that circuit card 59 is located on vehicle frame 52 can make Hall 3 experience the magnetic flow of permanent magnets 2, and the position of circuit card 59 makes the Hall 3 can be according to the movement output electric signal of permanent magnets 2.
The preferred model of the each parts of sensor of the present invention and concrete connection mode are: Hall 3 is UGN3075, and power-assisted model treater 21 is AT89S52 micro controller systems 31, and D and A converter 27 is ADC-C8E; Op amp 28 is OF-17F, between input end 2 pin of OF-17F op amp 28 and mouth 6 pin, is connected with thermally dependent resistor R6; Each parts annexation is as follows:
12 pin B8 of 39 pin P00 linking number weighted-voltage D/A converters 27 of micro controller system 31;
11 pin B7 of 38 pin P01 linking number weighted-voltage D/A converters 27 of micro controller system 31;
10 pin B6 of 37 pin P02 linking number weighted-voltage D/A converters 27 of micro controller system 31;
9 pin B5 of 36 pin P03 linking number weighted-voltage D/A converters 27 of micro controller system 31;
8 pin B4 of 35 pin P04 linking number weighted-voltage D/A converters 27 of micro controller system 31;
7 pin B3 of 34 pin P05 linking number weighted-voltage D/A converters 27 of micro controller system 31;
6 pin B2 of 33 pin P06 linking number weighted-voltage D/A converters 27 of micro controller system 31;
5 pin B1 of 32 pin P07 linking number weighted-voltage D/A converters 27 of micro controller system 31;
2 pin of 4 pin concatenation operation amplifiers 28 of D and A converter 27;
3 pin of 2 pin concatenation operation amplifiers 28 of D and A converter 27;
6 pin of op amp 28 are analog signal output.
Between input end 2 pin of OF-17F op amp 28 and mouth 6 pin, be connected with thermally dependent resistor R6, and thermally dependent resistor R6 two ends are also parallel with capacitor C 6.Preferably thermally dependent resistor R6 is 5K, and capacitor C 6 is 8P, uses the R5 ground connection of 1.25k between 4 pin of D and A converter 27 and 2 pin of op amp 28.Make its available temperature-sensitive resistance R 6 regulate the analog signal voltage scope of op amp 286 pin outputs to be stabilized between 0.8--4.2V.
Ride the morpet used time of the present invention, the method that makes the stretcher of bicycle command electronic function to coordinate with sensor: the mark of being used as one or more location on the wheel that has flywheel 1 and permanent magnets 2, mark can be material object or color, and mark also can be located on flywheel 1.With protecting the position objects of reference such as a certain position relationship of mud plate or mark and horizontal sextant angle position relationship on a certain position relationship of vehicle frame of mark and bicycle or the tire of mark and bicycle, determine on flywheel 1 position relationship of each permanent magnets 2 and the stretcher of bicycle, that is to say, stretcher, in the time of certain position, represents that the permanent magnets 2 of pedal position is also in a certain position.Realize the object that specific a certain permanent magnets 2 represents pedal position.Think that the power-assisted time of morpet electrical motor and the requirement of oneself do not match if ride people, as the power-assisted time starts too soon or too slow, can change the position of mark and vehicle frame, change and represent the permanent magnets 2 of pedal position and the relative angle position relationship of stretcher, just can regulate the power-assisted time to start speed, make people's power-assisted required time provide the time of power-assisted to match with motor.But the power-assisted model of controlling motor is constant.
Advantage of the present invention: simple in structure, cost is low, permanent magnets quantity on permanent magnets ring is not placed restrictions on, the impulse singla of outputting standard, there is no signal blind zone, only with one group of output signal of a Hall, just total movement state, the output signal of energy perfect representation Moving plate can not drift about in distortion, for morpet, make power-assisted output can highly coordinate with power-assisted demand and cyclist is felt well.
(1) simple in structure, without elastic component, machinery-free fault: experience multiple permanent magnets with Hall and rotate output signal, the speed providing with Chinese patent 01201843.0 can be calculated the principle of moment, available multiple math modeling is calculated the moment parameter of morpet, for controlling the motor of morpet, realize power-assisted.Without elastic component, simple in structure, cost lower than with elastic component and mechanically stressed sensor.Each mechanical part distortion, machinery-free fault, the not good problem of cooperation are avoided after long-time use.
(2) magnetic polarity is contrary, output square-wave signal, there is accurate control function: because the magnetic polarity of adjacent two pieces of permanent magnets is contrary, and Hall is selected the Hall that opposite magnetic polarities is produced to square wave output signal, no matter spacing is how many for adjacent two pieces of permanent magnets, even very close to each other between adjacent two pieces of permanent magnets, Hall can be exported square-wave signal too.As for morpet, the motor of controlling morpet with the output signal of square wave is better than with sinusoidal waveform, because rectangle wave energy is accomplished signal point at any time, the signal implication that represents kinematic velocity is accurate, thereby kinematic velocity that can Precise Representation booster bicycle pedal, to go out the correct power-assisted demand of this state of kinematic motion with the accurate speed calculation of pedal.
(3) magnetic polarity of adjacent permanent magnets is contrary, permanent magnets quantity is not placed restrictions on, can increase sensing point position: because magnetic polarity is contrary as far as possible, output square-wave signal, even adjacent permanent magnets gapless, the signal of its output has remained number, differentiable square-wave signal, still has control function, that is to say and can not export the unchanged linear signal of not controlling function.As for morpet, owing to being placed restrictions on the rolling disc diameter of pedal linkage, just can be on the rolling disc of prescribed level, increase permanent magnets quantity as far as possible, increase sensing point position as far as possible, use as far as possible many transducing signals to represent bicycle pedal kinematic velocity, Precise Representation state of kinematic motion.
(4) magnetic polarity of adjacent permanent magnets is contrary, can arrange that permanent magnets is many, sensing point position is many, the state of kinematic motion of rolling disc is represented accurately: to for morpet, the rolling disc size of fixing permanent magnets is strictly placed restrictions on, general rolling disc diameter can only be in 10-15 centimetre, in order to make Hall obtain the magnetic pole signal of permanent magnets under the condition that has spacing, the diameter of its permanent magnets is at least Ф 0.6-0.8 centimetre, zero-lash 35-73 permanent magnets ［ (10-1) the * 3.14/0.8=35 that arranges of the periphery of the rolling disc of diameter 10-15 centimetre; (15-1) * 3.14/0.6=73 ］, stretcher circles, and Hall can obtain 35-73 signal for controlling the motor of morpet.But if the identical prior art of adjacent permanent magnets magnetic polarity, adjacent permanent magnets, by 5 centimetres of spacing,, on diameter 10-15 centimetre rolling disc, can only arrange at most 5-8 permanent magnets ［ (10-1) * 3.14/5.8=5; (15-1) * 3.14/5.6=8 ］.Visible, the art of this patent can arrange doubly ［ 35/5=6 of permanent magnets 7-9 than prior art more; 73/8=9 ］, 30-65 permanent magnets ［ 35-5=30 is set more; 73-8=65 ］.So rolling disc circles, the art of this patent has increased 7-9 turn disc site signal doubly than prior art.The electric machine control accuracy rate of morpet has been improved to 7-9 doubly naturally, make cyclist also improve 7-9 doubly to power-assisted demand accuracy rate, car and people's cooperate degree improves greatly, and cyclist's comfort increases greatly, is no longer that fast slow uncomfortable sensation of boosted vehicle of prior art.The present invention asks someone according to actual experience, in the time roughly 15 permanent magnets being set uniformly on rolling disc, substantially having eliminated prior art and has only established 5-8 permanent magnets and make that fast slow uncomfortable sensation of boosted vehicle; In the time roughly 20 permanent magnets being set uniformly on rolling disc, car coordinates oneself can meet human needs with people's, and the sensation of riding boosted vehicle is very comfortable.
(5) there is no signal blind zone, power-assisted demand whenever all can obtain the power-assisted matching: this patent can arrange at most 35-73 permanent magnets at the rolling disc periphery of diameter 10-15 centimetre, and between each permanent magnets, average angle is 5-10 degree.For morpet, in the time starting or move, stretcher is from leaving in the 35 degree regions at 10-45 degree angle, summit, there is 4-7 permanent magnets (just having had a signal in the position of leaving 10Du angle, summit), the exportable 4-7 of Hall control signal reaction power-assisted demand, can realize any position, have power-assisted just can obtain the excellent technique effect of corresponding power-assisted any time, make car and people's no-float, it is laborsaving comfortable again that cyclist feels.
(6) only with a Hall, a control signal represents the total movement state of rolling disc, the state of kinematic motion of control signal and rolling disc is in full accord, control signal and people's demand is in full accord: multiple permanent magnets are fixed on rolling disc, permanent magnets is synchronizeed and is rotated with rolling disc, experience whole permanent magnets motor messages with a Hall, the control signal of Hall output and the state of kinematic motion of rolling disc are in full accord, just in full accord with people's demand, control signal does not have original segmentation error and signal drift problem yet.Even if hall sensing parameter changes, be also whole control signal parallel, as long as it is wider to receive the range of receiving of electric machine controller of Hall control signal, the control effect of the Hall control signal having changed becomes systematicness to change.As for morpet, power-assisted demand model can distortion, power-assisted output and power-assisted demand still keep the matching relationship of original model, and the systematicness that cyclist is easy to grasp this power-assisted ability changes, and make to add in control signal the control model coordinating with rolling disc rotating speed.
(7) can carry out digitized processing to hall signal, digital signal is converted to the power-assisted model digital signal with rolling disc rotating speed key element, again power-assisted model digital signal is converted to power-assisted model simulation signal, finally power-assisted model simulation signal is become to the control signal that electric machine controller burning voltage scope, that have rating horsepower can be used.In a word, the signal exactly magnetic patch being rotated carries out digitized processing, in digitized processing treating process, adds the power-assisted model of mathematics, makes, in the control signal of the last output of sensor, to contain the power-assisted model adding.Because the power-assisted model of mathematics is artificial setting, so, always the power-assisted model specification of mathematics can be become to the model that is as far as possible applicable to man-machine cooperation, the exportable control signal that can realize man-machine cooperation of sensor of the present invention.And the magnetic patch same pole of existing morpet sensor is at the same face, Hall can not obtain square-wave signal, also just cannot carry out digitized processing to hall signal, it controls model can only be hall signal to be carried out to part revise, so can not realize the control signal of the man-machine optimized matching of output.
(8) finally the control signal of output does not have signal drift: the output signal of op amp is carried out to feedback regulation with thermally dependent resistor R6, can solve the problem that the semiconductor devices such as Hall, D and A converter and op amp make power-assisted model simulation signal drift, what make the last output of sensor is the standard power-assisted model simulation signal that is not subject to variation of ambient temperature.
(9) can realize the machine operation mode of man-machine optimized matching: the machine operation mode that can realize man-machine cooperation: the power-assisted math modeling coordinating with power-assisted demand in power-assisted model calculator power-assisted model memory device, and the speed parameter substitution power-assisted math modeling that magnetic patch rotating speed calculator (24) is provided, power-assisted model calculator just can calculate power-assisted model digital signal.This power-assisted model digital signal is exactly to make control signal that people can coordinate with Electrical Bicycle, that use for controlling motor.Power-assisted model calculator is digital processor, it can accept any digitized math modeling, power-assisted model memory device just can provide to power-assisted model calculator the math modeling of any artificial setting, had people to set arbitrarily this condition of math modeling, people just can set the math modeling that can make people can coordinate with Electrical Bicycle.Power-assisted model memory device has people to set, and the math modeling that can make people can coordinate with Electrical Bicycle just can be realized the machine operation mode that people coordinates with Electrical Bicycle; People sets that math modeling can also make motor have the most reasonably to start and the mode of operation of the model that turns round, power saving.So morpet of the present invention is province's electric booster bicycle that people coordinates with Electrical Bicycle.
But in a rotation period of existing power-assisted bike pedal plate, Hall can only be exported less than 10 sine wave signals, sine wave signal can not become digital signal, can not people be the motor that adds best power-assisted model control Electrical Bicycle, the power-assisted model of this morpet can not realize man-machine optimized matching, can not make motor have mode of operation the most reasonable, power saving.
(10) power saving effect and meaning: with 8 the permanent magnets coplanars that have of buying in morpet of the present invention and city be that same pole is carried out power saving comparison as the morpet of sensing element, use the mode of different sensors instead with same Electrical Bicycle, identical cyclist rides and surveys in fact in same road segment, result is: after riding 110 kilometers with morpet of the present invention, battery has a small amount of electricity more than also; After the morpet of buying in Dan Yonggai city is ridden 45 kilometers, battery has not had remaining electricity.The meaning of this power saving is: the morpet of the present invention that is full of electricity can meet whole day to be ridden and do not charge, solved people on the way and car can not this existing morpet of power-assisted hang-up.
Accompanying drawing explanation
Fig. 1 is the sensitive member structural representation that the multiple N-S of flywheel replace permanent magnets;
Fig. 2 is the sensitive member structural representation that on flywheel, the multiple N-S of high density replace permanent magnets;
Fig. 3 is rear wheel and the vehicle frame of bicycle and makes the rolling disc flywheel of sensor and the structural representation of Hall;
Fig. 4 is that the signal of Hall, power-assisted model treater, D and A converter, op amp flows to block scheme;
Fig. 5 is the circuit diagram of Hall, micro controller system, D and A converter, op amp;
Fig. 6 is that sensor is located at the annexation schematic diagram that forms morpet of the present invention on electric bicycle flywheel and vehicle frame.
In figure, 1 is flywheel, the 2nd, permanent magnets, the 3rd, Hall, the 5th, circular rail trace, the 21st, power-assisted model treater, the 24th, analogue to digital conversion and velocity calculator, the 25th, power-assisted model memory device, the 26th, power-assisted model calculator, the 27th, D and A converter, the 28th, op amp, the 29th, electric machine controller, the 30th, motor, the 31st, micro controller system, the 32nd, clock circuit, the 53rd, vehicle frame, the 55th, battery, the 59th, circuit card.
The specific embodiment
On embodiment 1, flywheel, establish many magnetic patch and be uniformly distributed the morpet of sensor
As Fig. 1,3,4,6,
One, Electrical Bicycle parts and the structure relevant with sensor installation: comprise Electrical Bicycle and sensor, comprise Electrical Bicycle and sensor, on the rear wheel of Electrical Bicycle, there is flywheel 1, Electrical Bicycle has vehicle frame 53, on Electrical Bicycle, battery 55 connects electric machine controller 29, and electric machine controller 29 connects the motor 30 on wheel;
Two, the structure of sensor and the annexation of parts are as follows:
［ 1 ］ sensitive member is the element that the rotational motion of flywheel 1 is become to square-wave signal output;
Sensitive member is 20 permanent magnets 2 that 0.6 centimetre of diameter is set with a face of flywheel 1, and magnetic flow is 146---279 (BH) max/KJm
-3in some values.The structure of flywheel 1, permanent magnets 2, Hall 3 is as follows:
All permanent magnets 2 rounded track distributions equably, each permanent magnets 2 is fixed on 9.0 centimetres of circular rail traces 5 of diameter, and each permanent magnets 2 is identical to the distance between identical, the adjacent permanent magnets 2 of distance at circular rail trace 5 circle centers, places.
All permanent magnets 2 rounded track distributions equably, each permanent magnets 2 is fixed on 9.0 centimetres of circular rail traces 5 of diameter, and each permanent magnets 2 is identical to the distance between identical, the adjacent permanent magnets 2 of distance at circular rail trace 5 circle centers, places.
The contrary mode of magnetic polarity in 2 one-tenth adjacent permanent magnets 2 of whole permanent magnets of 1 one face settings of flywheel is arranged, and on 1 one faces of flywheel, all the magnetic polarity distribution mode of permanent magnets 2 is the N utmost point, the S utmost point, the N utmost point, the S utmost point, the N utmost point, the S utmost point ...
Be located at flywheel 1 with a Hall 3 and have the side of permanent magnets 2, Hall 3 is located at the position that approaches permanent magnets 2, be that Hall 3 is located in each permanent magnets 2 place circular rail trace 5 scopes, Hall 3 keeps the spacing distance of 0.3 centimetre with each permanent magnets 2 of rotary state, make each permanent magnets 2 of rotating when through Hall 3, Hall 3 can produce a corresponding square wave electric signal output.
［ 2 ］ power-assisted model treater 21 is convs that digital signal that flywheel 1 is rotated becomes the signal form of power-assisted model digital signal;
Power-assisted model treater 21 comprises analogue to digital conversion and velocity calculator 24, power-assisted model memory device 25 and power-assisted model calculator 26;
Analogue to digital conversion is connected with the Hall 3 of sensitive member with velocity calculator 24; The square-wave signal that analogue to digital conversion and velocity calculator 24 are inputted Hall 3 calculates the rotating speed that pace of change between each square wave represents flywheel 1;
Analogue to digital conversion is connected with power-assisted model calculator 26 with velocity calculator 24, and power-assisted model memory device 25 is also connected with power-assisted model calculator 26; The digital signal of flywheel 1 velocity of rotation of power-assisted model calculator 26 use analogue to digital conversions and velocity calculator 24 is selected a certain power-assisted pattern function in power-assisted model memory device 25, finally, rotating speed digital signal substitution power-assisted model calculator 26, calculate the power-assisted model digital signal that is applicable to this flywheel 1 rotating speed.Be that power-assisted model calculator 26 just can be exported power-assisted model digital signal.
［ 3 ］ D and A converter 27 is the analog signals that power-assisted model digital signal converted to power-assisted model.
Power-assisted model calculator 26 is connected with D and A converter 27, and D and A converter 27 converts power-assisted model simulation signal to the power-assisted model digital signal of power-assisted model calculator 26.To export the simulation letter of power-assisted model to electric machine controller 29 that can only Analog signals.
［ 4 ］ op amp 28 is the power-assisted model simulation signals that the power-assisted model simulation signal of D and A converter 27 converted to the range of nominal tension.
D and A converter 27 is connected with op amp 28, although the power-assisted model simulation signal of D and A converter 27 has solved power-assisted model problem, but the voltage of power-assisted model signals can't meet the needs of electric machine controller 29, so also power-assisted model simulation signal is converted to the power-assisted model simulation signal that the range of nominal tension needs with op amp 28, just can be transferred to electric machine controller 29, reach electric machine controller 29 and control motor 30 and carry out the operation that power-assisted is object.
Three, sensor and Electrical Bicycle connect into morpet: the Hall 3 of sensor is fixed on the position that can experience permanent magnets 2 magnetic flow on the vehicle frame 53 that approaches permanent magnets 2; After the power-assisted model treater 21 of Signal Processing Element, D and A converter 27 are connected successively with op amp 28, Hall 3 is connected with power-assisted model treater 21, and op amp 28 is connected with the electric machine controller 29 of Electrical Bicycle.Realize the object of sensor electricity consumption signal control Electrical Bicycle, used the power-assisted model simulation signal of op amp 28, or claimed standard power-assisted model simulation signal control Electrical Bicycle, obtained morpet.
On embodiment 2, high density flywheel, establish many magnetic patch and be uniformly distributed the morpet of sensor
As Fig. 2,3,4,6, a face of the flywheel 1 that diameter is 10.0 centimetres arranges 40 permanent magnets 2 of 0.6 centimetre of diameter.The magnetic flow of permanent magnets 2 is 146 ,-279 (BH) max/KJm
-3in some values, Hall 3 keeps the spacing distance of 0.2 centimetre with each permanent magnets 2 of rotary state, makes each permanent magnets 2 of rotating when through Hall 3, Hall 3 can produce a corresponding square-wave signal output.Other structure is same as embodiment 1.
As Fig. 1,3,5,6, as embodiment 1, sensor comprises the sensitive member, power-assisted model treater 21, D and A converter 27 and the op amp 28 that connect successively;
［ 1 ］ Hall 3 in sensitive member is selected UGN3075; In sensitive member, the structure of other element and element is same as embodiment 1;
［ 2 ］ power-assisted model treater 21 selects micro controller system 31 to complete repertoire, and micro controller system 31 is selected AT89S52.It is the repertoire that AT89S52 micro controller system 31 completes analogue to digital conversion and velocity calculator 24, power-assisted model memory device 25 and power-assisted model calculator 26.
［ 3 ］ ADC-C8E is selected in D and A converter 27.
［ 4 ］ op amp 28 is selected OF-17F, is connected with the thermally dependent resistor R6 of 5k between input end 2 pin of OF-17F op amp 28 and mouth 6 pin; And thermally dependent resistor R6 two ends are also parallel with 8P capacitor C 6.Between 4 pin of D and A converter 27 and 2 pin of op amp 28, use the R5 ground connection of 1.25k.Make its available temperature-sensitive resistance R 6 regulate the analog signal voltage scope of op amp 286 pin outputs to be stabilized between 0.8--4.2V.
Each electronic unit annexation is as follows:
12 pin B8 of 39 pin P00 linking number weighted-voltage D/A converters 27 of micro controller system 31;
11 pin B7 of 38 pin P01 linking number weighted-voltage D/A converters 27 of micro controller system 31;
10 pin B6 of 37 pin P02 linking number weighted-voltage D/A converters 27 of micro controller system 31;
9 pin B5 of 36 pin P03 linking number weighted-voltage D/A converters 27 of micro controller system 31;
8 pin B4 of 35 pin P04 linking number weighted-voltage D/A converters 27 of micro controller system 31;
7 pin B3 of 34 pin P05 linking number weighted-voltage D/A converters 27 of micro controller system 31;
6 pin B2 of 33 pin P06 linking number weighted-voltage D/A converters 27 of micro controller system 31;
5 pin B1 of 32 pin P07 linking number weighted-voltage D/A converters 27 of micro controller system 31;
2 pin of 4 pin concatenation operation amplifiers 28 of D and A converter 27;
3 pin of 2 pin concatenation operation amplifiers 28 of D and A converter 27;
6 pin of op amp 28 are analog signal output.
［ 5 ］ mechanical part of sensor and sensing element structural relation: the mechanical part of sensor comprises flywheel 1, the sensing element of sensor comprises multiple permanent magnets 2, Hall 3, micro controller system 31, D and A converter 27 and op amp 28; In sensing element, connected Hall 3, micro controller system 31, D and A converter 27 and 28 4 electronic components of op amp are located on a circuit card 59 successively; Hall 3 on circuit card 59 is located at the magnetic flow that can experience permanent magnets 2, and Hall 3 can be according to the position of magnetic flux change exporting change electric signal.Connected successively Hall 3, micro controller system 31, D and A converter 27 and 28 4 electronic components of op amp are located on a circuit card 59, be conducive to these four electronic component integrations, modularization, miniaturization, convenient these four unified being fixed on vehicle frame 53 of electronic component entirety.
Claims (6)
1. on flywheel, establish many magnetic patch and be uniformly distributed the morpet of sensor, comprise Electrical Bicycle and sensor, on the rear wheel of Electrical Bicycle, there is flywheel (1), Electrical Bicycle has vehicle frame (53), battery on Electrical Bicycle (55) connects electric machine controller (29), and electric machine controller (29) connects the motor (30) on wheel; It is characterized in that:
The structure of sensor and the annexation of parts are as follows:
Sensor comprises the sensitive member, power-assisted model treater (21), D and A converter (27) and the op amp (28) that connect successively;
［ 1 ］ sensitive member is the element that the rotational motion of flywheel (1) is become to square-wave signal output;
Sensitive member comprises a flywheel (1) and identical many pieces of permanent magnets (2), the size of many pieces of permanent magnets (2) is identical, shape is identical, magnetic flow is identical, on flywheel (1), be fixedly installed many pieces of permanent magnets (2), these many pieces of permanent magnets (2) equably rounded track distribute, and every piece of permanent magnets (2) is identical to the distance between identical, the adjacent two pieces of permanent magnets of distance (2) at circle center, circular rail trace (5) place; In certain one side of flywheel (1), the magnetic polarity of adjacent two pieces of permanent magnets (2) is contrary, and the magnetic polarity distribution mode of the upper whole permanent magnets (2) of certain one side of flywheel (1) is the N utmost point, the S utmost point, the N utmost point, the S utmost point, the N utmost point, the S utmost point
Also comprise a Hall (3), Hall (3) is positioned at certain one side of flywheel (1), and Hall (3) is located at the position that approaches permanent magnets (2) and can experience permanent magnets (2) magnetic flow, between Hall (3) and permanent magnets (2), has spacing; Hall (3) is the Hall that opposite magnetic polarities is produced to square wave output signal;
［ 2 ］ power-assisted model treater (21) is the signal form conv that the digital signal of flywheel (1) rotation is become to power-assisted model digital signal;
Power-assisted model treater (21) comprises analogue to digital conversion and velocity calculator (24), power-assisted model memory device (25) and power-assisted model calculator (26);
Analogue to digital conversion is connected with the Hall (3) of sensitive member with velocity calculator (24); Analogue to digital conversion and velocity calculator (24) calculate the square-wave signal of Hall (3) input the rotating speed that pace of change between each square wave represents flywheel (1);
Analogue to digital conversion is connected with power-assisted model calculator (26) with velocity calculator (24), and power-assisted model memory device (25) is also connected with power-assisted model calculator (26); A certain power-assisted pattern function in flywheel (1) the selection of speed power-assisted model memory device (25) of analogue to digital conversion and velocity calculator (24) for power-assisted model calculator (26), and by flywheel (1) speed conditions substitution power-assisted pattern function, calculate applicable power-assisted model digital signal, i.e. power-assisted model calculator (26) output power-assisted model digital signal;
［ 3 ］ D and A converter (27) is the analog signal that power-assisted model digital signal is converted to power-assisted model;
Power-assisted model calculator (26) is connected with D and A converter (27), and D and A converter (27) converts power-assisted model simulation signal to the power-assisted model digital signal of power-assisted model calculator (26);
［ 4 ］ op amp (28) is the power-assisted model simulation signal that the power-assisted model simulation signal of D and A converter (27) is converted to the range of nominal tension;
The annexation of sensor and Electrical Bicycle is: Hall (3) is fixed on the position that can experience permanent magnets (2) magnetic flow on the vehicle frame (53) that approaches permanent magnets (2), and the signal output lead of op amp in sensor (28) is connected with the signal input part of the electric machine controller (29) of Electrical Bicycle.
2. the morpet of establishing many magnetic patch on flywheel according to claim 1 and be uniformly distributed sensor, is characterized in that: also comprise thermally dependent resistor R6, thermally dependent resistor R6 is connected between the input end and mouth of op amp (28).
3. the morpet of establishing many magnetic patch on flywheel according to claim 2 and be uniformly distributed sensor, is characterized in that: power-assisted model treater (21) is micro controller system (31), is connected with clock circuit (32) on micro controller system (31);
The mechanical part of sensor and sensing element structural relation: the mechanical part of sensor comprises flywheel (1), the sensing element of sensor comprises multiple permanent magnets (2), Hall (3), micro controller system (31), D and A converter (27) and op amp (28); In sensing element, connected Hall (3), micro controller system (31), D and A converter (27) and (28) four electronic components of op amp are located on a circuit card (59) successively; The position that circuit card (59) is located on vehicle frame (53) can make Hall (3) experience the magnetic flow of permanent magnets (2), and the position of circuit card (59) makes the Hall (3) can be according to the movement output electric signal of permanent magnets (2).
4. on flywheel according to claim 3, establish many magnetic patch and be uniformly distributed the morpet of sensor, it is characterized in that: Hall (3) is UGN3075, power-assisted model treater (21) is AT89S52 micro controller system (31), and D and A converter (27) is ADC-C8E; Op amp (28) is OF-17F, between input end 2 pin of OF-17F op amp (28) and mouth 6 pin, is connected with thermally dependent resistor R6; Each parts annexation is as follows:
Signal output part 3 pin of Hall (3) connect 12 pin INTO ［ P32 ］ of micro controller system (31);
12 pin B8 of 39 pin P00 linking number weighted-voltage D/A converters (27) of micro controller system (31);
11 pin B7 of 38 pin P01 linking number weighted-voltage D/A converters (27) of micro controller system (31);
10 pin B6 of 37 pin P02 linking number weighted-voltage D/A converters (27) of micro controller system (31);
9 pin B5 of 36 pin P03 linking number weighted-voltage D/A converters (27) of micro controller system (31);
8 pin B4 of 35 pin P04 linking number weighted-voltage D/A converters (27) of micro controller system (31);
7 pin B3 of 34 pin P05 linking number weighted-voltage D/A converters (27) of micro controller system (31);
6 pin B2 of 33 pin P06 linking number weighted-voltage D/A converters (27) of micro controller system (31);
5 pin B1 of 32 pin P07 linking number weighted-voltage D/A converters (27) of micro controller system (31);
2 pin of 4 pin concatenation operation amplifiers (28) of D and A converter (27);
3 pin of 2 pin concatenation operation amplifiers (28) of D and A converter (27);
6 pin of op amp (28) are analog signal output.
5. the morpet of establishing many magnetic patch according to claim 1-4 on the flywheel described in any one and be uniformly distributed sensor, is characterized in that: Hall (3) is located at the just position of the circular rail trace (5) to many pieces of permanent magnets (2).
6. the morpet of establishing many magnetic patch on flywheel according to claim 5 and be uniformly distributed sensor, is characterized in that: flywheel (1) is provided with visable indicia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210263457.2A CN102795292B (en) | 2012-07-28 | 2012-07-28 | Booster bicycle provided with sensor with evenly distributed magnetic blocks on flywheel |
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| CN201210263457.2A CN102795292B (en) | 2012-07-28 | 2012-07-28 | Booster bicycle provided with sensor with evenly distributed magnetic blocks on flywheel |
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| CN102795292B true CN102795292B (en) | 2014-06-18 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1612564A2 (en) * | 2001-09-11 | 2006-01-04 | Koyo Seiko Company, Ltd. | Magnetic pulser ring |
| CN101592539A (en) * | 2009-06-30 | 2009-12-02 | 南京奥敏传感技术有限公司 | Moment-assistant sensor for single magnetic pole electric bicycle |
| CN202350721U (en) * | 2011-12-13 | 2012-07-25 | 株洲易力达机电有限公司 | Electrically assisted steering system sensor integrating angle and torque into whole |
| CN202783668U (en) * | 2012-07-28 | 2013-03-13 | 成都宽和科技有限责任公司 | Power assisting bicycle with flywheel provided with sensor with multiple uniformly distributed magnetic blocks |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009288158A (en) * | 2008-05-30 | 2009-12-10 | Aisin Seiki Co Ltd | Rotation angle detecting device |
-
2012
- 2012-07-28 CN CN201210263457.2A patent/CN102795292B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1612564A2 (en) * | 2001-09-11 | 2006-01-04 | Koyo Seiko Company, Ltd. | Magnetic pulser ring |
| CN101592539A (en) * | 2009-06-30 | 2009-12-02 | 南京奥敏传感技术有限公司 | Moment-assistant sensor for single magnetic pole electric bicycle |
| CN202350721U (en) * | 2011-12-13 | 2012-07-25 | 株洲易力达机电有限公司 | Electrically assisted steering system sensor integrating angle and torque into whole |
| CN202783668U (en) * | 2012-07-28 | 2013-03-13 | 成都宽和科技有限责任公司 | Power assisting bicycle with flywheel provided with sensor with multiple uniformly distributed magnetic blocks |
Non-Patent Citations (1)
| Title |
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| JP特开2009-288158A 2009.12.10 |
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