CN202783632U - Boosting bicycle rotating disc type sensor with multiple magnetic blocks in uniform distribution - Google Patents
Boosting bicycle rotating disc type sensor with multiple magnetic blocks in uniform distribution Download PDFInfo
- Publication number
- CN202783632U CN202783632U CN201220367959.5U CN201220367959U CN202783632U CN 202783632 U CN202783632 U CN 202783632U CN 201220367959 U CN201220367959 U CN 201220367959U CN 202783632 U CN202783632 U CN 202783632U
- Authority
- CN
- China
- Prior art keywords
- power
- pin
- assisted model
- assisted
- permanent magnets
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model belongs to the technical field of providing signals by magnetic induction, and relates to a boosting bicycle rotating disc type sensor with multiple magnetic blocks in uniform distribution, in particular to the technology of providing control signals on a rotating part by multi-point magnetic induction. The boosting bicycle rotating disc type sensor comprises a sensing element, a boosting model processor, a digital-to-analog converter and an operational amplifier which are sequentially connected, and the sensing element is formed by fixedly arranging multiple annularly distributed permanent magnetic blocks on a rotating disc. On one side of the rotating disc, each two adjacent permanent magnetic blocks are opposite in magnetic polarity, namely the magnetic polarity distribution mode of all the permanent magnetic blocks is N pole, S pole, N pole and the like. Besides, a Hall element is arranged at the position close to the permanent magnetic blocks. The boosting bicycle rotating disc type sensor has the advantages that by the aid of the opposite polarity distribution mode of the N pole and the S pole of each two adjacent permanent magnetic blocks, the Hall element can obtain square-wave signals so as to facilitate digital processing for the signals, and the sensor is capable of outputting electric signals with artificially set control models.
Description
Technical field
The utility model belongs to the technical field that magnetic induction provides signal, particularly relates on rotatable parts, carries out the technology that multi-point magnetic induction provides control signal.
Background technology
The Chinese patent 201020295192.0 " colluding 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 cooperate, and experience the sensing device of moment.After period of service was long, the elasticity modulus variation of elastic component will cause the control effect of transducing signal and controlled motor to change, and the power-assisted effect becomes and need to mismatch with people's power-assisted.And complicated with the project organization 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, the no touch detection is pedaled power, speed and is turned to, this device is established respectively magnetic sheet on the inside and outside wheel disc of relative motion, on the interior wheel disc spring is arranged, use spring reset between the inside and outside wheel disc, survey electric signal that the magnetic sheet of relative motion on the inside and outside wheel disc produces with two Halls on the support and represent to pedal power, speed and turn to.
Shortcoming (1) is not durable with elastic component: after period of service was long, the elasticity modulus variation of elastic component will cause the control effect of transducing signal and controlled motor to change, and the power-assisted effect becomes and need to mismatch with people's power-assisted, complex structure, and cost is high.
Shortcoming (2) sine wave output makes the magnetic sheet group Edge Distance can not be less than 4 centimetres, generally take 5 centimetres as good, can establish magnetic sheet group number very little and make, man-machine cooperation is undesirable: each magnetic sheet group is identical, then Hall output is that sinusoidal waveform is as control signal, as the control signal sinusoidal waveform certain peak valley difference must be arranged, because the magnetic sheet group of this patent needs certain-length to represent forward and reverse motion, be to establish at most 8 magnetic sheet groups on 20 centimetres the rolling disc circular trace at diameter, generally take 5 as good, Hall just can have the sine wave signal of control function.That is to say that this technical scheme of 01201843.0 patent is used for morpet, magnetic sheet group limited amount is ended in 8, control signal very little, man-machine cooperation is undesirable.If but more than 8 magnetic sheet groups, when people's treadmill was very fast, the signal graph of Hall output was close to a horizon, this signal is not controlled function, can not control electrical motor, when making it need power-assisted especially, loses assist function.
Shortcoming (3) signal blind zone reaches miter angle, really can not get power-assisted when needing power-assisted during startup: well-known, it is minimum in summit moment that the people steps on bicycle pedal, the zone that needs most power-assisted from leaving 10-45 degree angle, summit, but the angle between each magnetic sheet group of this patent is 45 degree, leaves summit 10-45 degree angular zone neither one magnetic sheet group at stretcher, also with regard to the 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 again complex structure of elastic component, fit structure characteristics because of Hall and magnetic sheet group, the 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 can not get power-assisted when starting, the power-assisted demand with provide power-assisted not mate, cyclist's traveling comfort is poor; As increasing by force magnetic sheet group quantity, its transducing signal loses again the 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, inlay two magnetic magnet steel above the Moving plate, inlay three Hall elements above the price fixing, bicycle pedal circles, each Hall produces two pulses, and then three Hall elements produce six pulses.Divide folding can get three characteristics, four shortcomings are as follows:
Characteristics (1) are for obtaining six impulse singlas, can only be each permanent magnetic steel same pole in one side: each Hall will produce two pulses, then can only be the same face that the same pole of two magnetic magnet steel is located at Moving plate, namely in certain one side of Moving plate, two magnetic magnet steel all be the arctic or all be the South Pole.If at the same face of Moving plate, a permanent magnetic steel is the arctic, another is the South Pole, and then 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 put down in writing.In order to increase pulse count, improve the control effect, can only be that each permanent magnetic steel same pole is in one side.
Characteristics (2) permanent magnetic steel is used for expression pedal fixed position, three Halls represent the pedal travel position: because pedal and Moving plate are synchronous rotations, so a permanent magnetic steel is fixed respectively in two positions on the Moving plate corresponding with two pedals, where some pedals turn, and then where corresponding permanent magnetic steel also turns; But only turn in the position that Hall is arranged, could send control signal by Hall, the motor of commander's morpet produces the power-assisted that needs and rotates.
The position of characteristics (3) middle different period pedal travels because Hall can not represent to circle, then just can not be only with a Hall: the different periods of pedal in circling, the power-assisted demand there is 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 Hall is arranged, and this Hall represents that with regard to output signal pedal has arrived the position of this Huo Yuan.But there is again following shortcoming with a plurality of Halls.
These characteristics as the morpet sensor have three shortcomings:
Shortcoming (1) represents respectively the fixed position of two pedals with two permanent magnetic steels that do not have an otherness, the turned position that just can only represent with a plurality of Halls 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 sides pin, make its left and right sides human hair combing waste give birth to the power-assisted demand, 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 a plurality of Halls, thus can not be only with a Hall, and must use a plurality of Halls.
Shortcoming (2) can not be only with a Hall, and three Halls must cause three control signals that original segmentation error is arranged, make the distortion of power-assisted demand model, naturally it is inconsistent with the power-assisted demand to produce power-assisted output: no matter morpet is one or two motor, the transducing signal of its control motor can only just can reach with a transducing signal input electric machine controller purpose of control motor; And this patent is with three Halls control motors, then must merge into one to three control signals of three Halls and could input electric machine controller after merging control signal.The parameter sensing of three Halls can not be the same, particularly owing to after variation of ambient temperature, the 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 the power-assisted demand; In like manner during 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, merging control signal and electric machine controller are not mated, power-assisted demand model distortion: because 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, then the merging control signal of identical power-assisted demand generation will produce the signal drift of segmenting, merge control signal as a whole signal distortion that produces, be 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 sensing site can not arbitrarily increase, the sensing site very little, the motor operation is just not steady, make people by bike feel very uncomfortable: owing to have shortcoming (1) and shortcoming (2) all to cause greater than one because of Hall quantity, 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, really can not get power-assisted when needing power-assisted during startup: well-known, it is minimum in summit moment that the people steps on bicycle pedal, the zone that needs most power-assisted from leaving 10-45 degree angle, summit, but the angle between each Hall of this patent is the 42.5-43.5 degree, leaves summit 10-42 degree angular zone neither one Hall at stretcher, also with regard to the 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 a plurality of Hall control assistant modes, because can only represent with a plurality of Halls the turned position of pedal, a plurality of control signals of a plurality of 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 you, the Hall small number and to produce the motor operation just not steady, make people by bike feel very uncomfortable, and can not get power-assisted when starting.Make it want the power-assisted demand model undistorted, and want motor to operate steadily and always attend to one thing and lose sight of another on these two problems, can not get both.
Summary of the invention
The purpose of this utility model provides the sensor that only obtains speed and acceleration signal with each permanent magnets on a Hall and the rolling disc, but be a kind of in induction region, can increase permanent magnets quantity as far as possible, utilize to greatest extent the rolling disc displacement information, the sensor that output information is many.Use is measured moment, the morpet sensor that motor operates steadily without elastic component and other machinery on morpet.
Design of the present utility model is: but in a Hall receptive field, carry out magnetic polarity with identical a plurality of permanent magnets on the rolling disc and change, and the signal that Hall is produced is square wave, controls with better function, more.For morpet, the quantity of information of expressing the motion of foot state is more.
Structure of the present utility model is:
Morpet comprises the sensitive member, power-assisted model treater 21, D and A converter 27 and the op amp 28 that connect successively with many magnetic patch well-distributed rotating disc type sensor; It is characterized in that:
［ 1 ］ sensitive member is the element that the rotational motion of rolling disc 1 is become square-wave signal output;
Sensitive member comprises a rolling disc 1 and identical many pieces of permanent magnets 2, many pieces of permanent magnets 2 big or small identical, shape is identical, magnetic flow is identical, be fixedly installed many pieces of permanent magnets 2 on the rolling disc 1, these many pieces of permanent magnets 2 equably rounded track distribute, and namely every piece of permanent magnets 2 is identical to the distance between identical, the adjacent two pieces of permanent magnets 2 of distance at circle center, circular rail trace 5 places; In certain one side of rolling disc 1, the magnetic polarity of adjacent two pieces of permanent magnets 2 is opposite, and namely simultaneously to go up the magnetic polarity distribution mode of whole permanent magnets 2 be the N utmost point, the S utmost point, the N utmost point, the S utmost point, the N utmost point, the S utmost point for certain of rolling disc 1
Also comprise a Hall 3, Hall 3 is positioned at certain one side of rolling disc 1, and Hall 3 is located at the position that also can experience permanent magnets 2 magnetic flow near permanent magnets 2, between Hall 3 and the permanent magnets 2 spacing is arranged; Hall 3 is the Halls that opposite magnetic polarities produced the square wave output signal.
［ 2 ］ power-assisted model treater 21 is the signal form convs that the digital signal that rolling disc 1 rotates become 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 velocity calculator and is connected with the Hall 3 of sensitive member; Analogue to digital conversion and velocity calculator 24 calculate the rotating speed that pace of change between each square wave represents rolling disc 1 to the square-wave signal of Hall 3 input;
Analogue to digital conversion is connected with velocity calculator and is connected with power-assisted model calculator 26, and power-assisted model memory device 25 also is connected with power-assisted model calculator 26; A certain power-assisted pattern function in the rolling disc 1 selection of speed power-assisted model memory device 25 of power-assisted model calculator 26 usefulness analogue to digital conversions and velocity calculator 24, and with rolling disc 1 speed conditions substitution power-assisted pattern function, calculate suitable power-assisted model digital signal, i.e. power-assisted model calculator 26 output power-assisted model digital signals;
［ 3 ］ D and A converter 27 is the analog signals that power-assisted model digital signal converted to the power-assisted model; Power-assisted model calculator 26 is connected with D and A converter 27, and D and A converter 27 converts the power-assisted model digital signal of power-assisted model calculator 26 to power-assisted model simulation signal;
［ 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.
［ one ］ to the explanation of sensitive member:
A plurality of permanent magnets 2 are in annular arrangement 6 scopes, the purpose that becomes annular arrangement to distribute is only to experience with a Hall 3 state of kinematic motion of whole permanent magnets 2 on the rolling disc, namely experience movement position and the speed of whole permanent magnets 2 on the 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 the rolling disc 1 that whole permanent magnets 2 is separately fixed at rolling disc, then the continuous electric signal of Hall 3 generations just can be expressed the state of kinematic motion of rolling disc again.If this continuous electric signal is used for other object of control, this continuous electric signal is exactly control signal.If be used for the motor of control morpet, also need with micro controller system or other electron component as sensing signal processor, position in the control signal, speed, acceleration/accel key element converted to needs what power-assisted signal of power-assisted, the function that converts is exactly the power-assisted demand model, or claims the 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 the high and low alternate square-wave signal of Hall 3 outputs, because the rolling disc that ends as limited size, rotating the accurate variable signal that will obtain in a week as much as possible, should be to select square wave certainly.The time that the peak-to-valley value of square-wave signal changes is short, can within the regular hour, produce the signal that the control meaning is arranged as much as possible.The structure generation square wave that the magnetic polarity of adjacent two magnetic patch 2 is opposite, 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 control function in this limit scope, rotate a week, produce square wave than producing the available pulse number of sinusoidal waveform and many 7-9 doubly.Nature, the opposite structure of the magnetic polarity of adjacent two magnetic patch 2 to the control effect of morpet more, the people cooperates with car better, the rider people feels more comfortable.
［ two ］ explanation of power-assisted model treater 21: power-assisted model treater 21 is the signal form convs that the digital signal that rolling disc 1 rotates become 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 the sensitive member 3, become the digital signal that represents rolling disc 1 velocity of rotation with analogue to digital conversion and velocity calculator 24, from power-assisted model memory device 25, select to be fit to again the power-assisted math modeling of certain rotating speed with the rotating speed digital signal; Rotating speed digital signal substitution power-assisted model calculator 26, calculate the power-assisted model digital signal that is fit to this speed at last.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 the power-assisted model.
Power-assisted model calculator 26 is connected with D and A converter 27, and D and A converter 27 converts the power-assisted model digital signal of power-assisted model calculator 26 to power-assisted model simulation signal.So that the analog signal to electric machine controller 29 output power-assisted models that can only Analog signals.
［ four ］ to the explanation of 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 the power-assisted model problem, but the voltage of power-assisted model signals can't satisfy the needs of electric machine controller 29, so also will convert power-assisted model simulation signal to 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.
The signal of each Signal Processing Element output is in the utility model sensor:
Power-assisted model treater 21 output power-assisted model digital signals;
Magnetic patch rotating speed calculator 24 calculates and exports the rotating speed digital signal of rolling disc 1;
It is for subsequent use that power-assisted model memory device 25 has multiple power-assisted pattern function, and output is the digital signal of selected power-assisted pattern function;
Power-assisted model calculator 26 calculates and output will be for the power-assisted model digital signal of control function;
The power-assisted model simulation signal that D and A converter 27 outputs convert power-assisted model digital signal to;
Op amp 28 outputs convert power-assisted model simulation signal to the power-assisted model simulation signal of the range of nominal tension;
What thermally dependent resistor R6 guaranteed op amp 28 outputs 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 the micro controller system 31.Finish 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 of distinguishing for to the square-wave signal of Hall 3 inputs, and preferably the length of each clock signal is 0.001 second.
The preferred model of each parts of sensor of the present utility model 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, is connected with thermally dependent resistor R6 between input end 2 pin of OF-17F op amp 28 and mouth 6 pin; 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.
Be connected with thermally dependent resistor R6 between input end 2 pin of OF-17F op amp 28 and mouth 6 pin, and thermally dependent resistor R6 two ends also are parallel with capacitor C 6.Preferred 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.The analog signal voltage scope that makes its available temperature-sensitive resistance R 6 regulate the output of op amp 286 pin is stabilized between the 0.8--4.2V.
Advantage of the present utility model: simple in structure, cost is low, the permanent magnets quantity on the permanent magnets ring is not placed restrictions on, the impulse singla of outputting standard, do not have signal blind zone, only just total movement state, the output signal of energy perfect representation Moving plate can not drift about in distortion with one group of output signal of a Hall, be used for morpet, power-assisted output can be highly cooperated with the power-assisted demand and the cyclist is felt well.
(1) simple in structure, without elastic component, machinery-free fault: experience a plurality of permanent magnets with Hall and rotate output signal, the speed that provides with Chinese patent 01201843.0 can be calculated the principle of moment, available multiple math modeling is calculated the moment parameter of morpet, the motor that is used for the control morpet is realized power-assisted.Be lower than with elastic component and mechanically stressed sensor without elastic component, simple in structure, cost.After having avoided long-time use, each mechanical part distortion, machinery-free fault, the not good problem of cooperation.
(2) magnetic polarity is opposite, the output square-wave signal, has accurate control function: because the magnetic polarity of adjacent two pieces of permanent magnets is opposite, and Hall is selected the Hall that opposite magnetic polarities is produced the square wave output signal, then adjacent two pieces of permanent magnets no matter spacing what, even very close to each other between adjacent two pieces of permanent magnets, Hall can be exported square-wave signal too.As being used for morpet, the motor of controlling morpet with the output signal of square wave is better than using sinusoidal waveform, because the rectangle wave energy is accomplished at any time point of signal, the signal implication of expression movement position and speed is accurate, but thereby the movement position of Precise Representation booster bicycle pedal and speed, in order to go out the correct power-assisted demand of this state of kinematic motion with the accurate position of pedal and speed calculation.
(3) magnetic polarity of adjacent permanent magnets is opposite, permanent magnets quantity is not placed restrictions on, can increase the sensing point position: because magnetic polarity is opposite as far as possible, the output square-wave signal, even adjacent permanent magnets gapless, the signal of its output has remained number, differentiable square-wave signal, still has the control function, that is to say to export the unchanged linear signal of not controlling function.As being used for morpet, owing to placed restrictions on the rolling disc diameter of pedal linkage, just can be on the rolling disc of prescribed level, increase as far as possible permanent magnets quantity, as far as possible increase the sensing point position, represent bicycle pedal movement position and speed, the Precise Representation state of kinematic motion with as much as possible transducing signal.
(4) magnetic polarity of adjacent permanent magnets is opposite, can arrange that permanent magnets is many, the sensing point position is many, state of kinematic motion to rolling disc represents accurately: to being used for morpet, fixedly the rolling disc size of permanent magnets is strictly placed restrictions on, general rolling disc diameter can only be in 10-15 centimetre, in order to make Hall that the magnetic pole signal that obtains permanent magnets under the condition of spacing arranged, the diameter of its permanent magnets is at least Ф 0.6-0.8 centimetre, then peripheral zero-lash 35-73 permanent magnets ［ (10-1) the * 3.14/0.8=35 that arranges of diameter 10-15 centimetre rolling disc; (15-1) * 3.14/0.6=73 ］, namely stretcher circles, and Hall can obtain the motor that 35-73 signal is used for the control morpet.But if the identical prior art of adjacent permanent magnets magnetic polarity, adjacent permanent magnets then on diameter 10-15 centimetre rolling disc, can only arrange at most 5-8 permanent magnets ［ (10-1) * 3.14/5.8=5 by 5 centimetres of spacings; (15-1) * 3.14/5.6=8 ］.As seen, 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.Electric machine control accuracy rate to morpet has improved 7-9 doubly naturally, make the 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, no longer is boosted vehicle the sort of one fast one slow uncomfortable sensation of prior art.The utility model is asked someone according to the experience of reality, when roughly 15 permanent magnets being set uniformly on the rolling disc, elimination prior art only establish 5-8 permanent magnets and make boosted vehicle the sort of one fast one slow uncomfortable sensation; When roughly 20 permanent magnets being set uniformly on the rolling disc, car cooperates oneself can satisfy human needs with the people's, and the sensation of riding boosted vehicle is very comfortable.
(5) do not have signal blind zone, the power-assisted that power-assisted demand whenever all can obtain to be complementary: this patent can arrange at most 35-73 permanent magnets at diameter 10-15 centimetre rolling disc periphery, and average angle is the 5-10 degree between each permanent magnets.Be used for morpet, when starting or move, stretcher is in the 35 degree zones of leaving 10-45 degree angle, summit, 4-7 permanent magnets (signal just having been arranged in the position of leaving 10 degree angles, summit) arranged, then the exportable 4-7 of Hall control signal reacts the 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 the 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: a plurality of permanent magnets are fixed on the rolling disc, permanent magnets and rolling disc rotate synchronously, with a whole permanent magnets motor message of Hall impression, then the state of kinematic motion of the control signal of Hall output and rolling disc is 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 the hall sensing parameter changes, also be 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 that has changed becomes systematicness to change.As being used for morpet, the power-assisted demand model can distortion, power-assisted output and power-assisted demand still keep the matching relationship of original model, and the cyclist is easy to grasp the systematicness change of this power-assisted ability, makes the control model that adding cooperates with the rolling disc rotating speed in the control signal.
(7) can carry out digitized processing to hall signal, digital signal is converted to 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, at last power-assisted model simulation signal is become the control signal that the electric machine controller burning voltage scope, that have rating horsepower can be used.In a word, the signal that exactly magnetic patch is rotated carries out digitized processing, in the digitized processing treating process, adds the power-assisted model of mathematics, makes in the control signal of the last output of sensor, contains the power-assisted model of adding.Because the power-assisted model of mathematics is artificial the setting, so, always can become the model that as far as possible is fit to man-machine cooperation to the power-assisted model specification of mathematics, then the exportable control signal that can realize man-machine cooperation of sensor of the present utility model.And the magnetic patch same pole of existing morpet sensor is at the same face, Hall can not obtain square-wave signal, also just can't carry out digitized processing to hall signal, its control model can only be hall signal to be carried out the part revise, so can not realize exporting the control signal of man-machine optimized matching.
(8) control signal of output does not have signal drift at last: with thermally dependent resistor R6 the output signal of op amp is carried out feedback regulation, 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 subjected to variation of ambient temperature.
Description of drawings
Fig. 1 is the sensitive member structural representation that a plurality of N-S of rolling disc replace permanent magnets;
Fig. 2 is the sensitive member structural representation that a plurality of N-S of high density replace permanent magnets on the rolling disc;
Fig. 3 is that the signal of Hall, power-assisted model treater, D and A converter, op amp flows to block scheme;
Fig. 4 is the circuit diagram of Hall, micro controller system, D and A converter, op amp.
1 is rolling disc, the 2nd among the figure, 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 specific embodiment
Such as Fig. 1,3, the present embodiment sensor comprises sensitive member, power-assisted model treater 21, D and A converter 27 and the op amp 28 that connects successively;
［ 1 ］ sensitive member is the element that the rotational motion of rolling disc 1 is become square-wave signal output;
With being fixedly installed 20 permanent magnets 2 on 10.0 centimetres of rolling discs 1 of highstrenghtpiston's injection molded diameter.
All equably rounded track distributions of permanent magnets 2, each permanent magnets 2 is fixed on 9.0 centimetres of circular rail traces 5 of diameter, and namely each permanent magnets 2 is identical to the distance between identical, the adjacent permanent magnets 2 of distance at circle center, circular rail trace 5 places.
All equably rounded track distributions of permanent magnets 2, each permanent magnets 2 is fixed on 9.0 centimetres of circular rail traces 5 of diameter, and namely each permanent magnets 2 is identical to the distance between identical, the adjacent permanent magnets 2 of distance at circle center, circular rail trace 5 places.
The opposite mode of magnetic polarity in 2 one-tenth adjacent permanent magnets 2 of whole permanent magnets of 1 one face settings of rolling disc is arranged, namely on 1 one faces of rolling disc all the magnetic polarity distribution mode of permanent magnets 2 be 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 the side that rolling disc 1 has permanent magnets 2 with a Hall 3, Hall 3 is located at the position near permanent magnets 2, be that Hall 3 is located in each permanent magnets 2 place circular rail trace 5 scope, Hall 3 keeps 0.3 centimetre spacing distance with each permanent magnets 2 of rotary state, make each permanent magnets 2 of rotation through Hall 3 time, Hall 3 can produce the square wave electric signal output of a correspondence.
［ 2 ］ power-assisted model treater 21 is the convs that the digital signal that rolling disc 1 rotates become 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 velocity calculator and is connected with the Hall 3 of sensitive member; Analogue to digital conversion and velocity calculator 24 calculate the rotating speed that pace of change between each square wave represents rolling disc 1 to the square-wave signal of Hall 3 input;
Analogue to digital conversion is connected with velocity calculator and is connected with power-assisted model calculator 26, and power-assisted model memory device 25 also is connected with power-assisted model calculator 26; The digital signal of rolling disc 1 velocity of rotation of power-assisted model calculator 26 usefulness analogue to digital conversions and velocity calculator 24 is selected a certain power-assisted pattern function in the power-assisted model memory device 25, rotating speed digital signal substitution power-assisted model calculator 26, calculate the power-assisted model digital signal that is fit to this rolling disc 1 rotating speed at last.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 the power-assisted model.
Power-assisted model calculator 26 is connected with D and A converter 27, and D and A converter 27 converts the power-assisted model digital signal of power-assisted model calculator 26 to power-assisted model simulation signal.So that the simulation letter to electric machine controller 29 output power-assisted models 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 the power-assisted model problem, but the voltage of power-assisted model signals can't satisfy the needs of electric machine controller 29, so also will convert power-assisted model simulation signal to 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 control motors 30 and carry out the operation that power-assisted is purpose.
40 permanent magnets 2 of 0.6 centimetre of diameter are set such as a face of the high strength aluminium rolling disc 1 of 10.0 centimetres of Fig. 2,3, diameters.The magnetic flow of permanent magnets 2 is 146---279 (BH) max/KJm
-3In some values, Hall 3 keeps 0.2 centimetre spacing distance with each permanent magnets 2 of rotary state, makes each permanent magnets 2 of rotation through Hall 3 time, Hall 3 can produce the square-wave signal output of a correspondence.Other structure is same as embodiment 1.
Such as Fig. 1,4, the present embodiment sensor comprises sensitive member, power-assisted model treater 21, D and A converter 27 and the op amp 28 that connects successively;
［ 1 ］ Hall in the sensitive member 3 is selected UGN3075; The structure of other element and element is same as embodiment 1 in the sensitive member;
［ 2 ］ power-assisted model treater 21 selects micro controller system 31 to finish repertoire, and micro controller system 31 is selected AT89S52.It is the repertoire that AT89S52 micro controller system 31 is finished 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 also are parallel with 8P capacitor C 6.Use the R5 ground connection of 1.25k between 4 pin of D and A converter 27 and 2 pin of op amp 28.The analog signal voltage scope that makes its available temperature-sensitive resistance R 6 regulate the output of op amp 286 pin is stabilized between the 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.
Claims (7)
1. morpet comprises the sensitive member, power-assisted model treater (21), D and A converter (27) and the op amp (28) that connect successively with many magnetic patch well-distributed rotating disc type sensor; It is characterized in that:
［ 1 ］ sensitive member is the element that the rotational motion of rolling disc (1) is become square-wave signal output;
Sensitive member comprises a rolling disc (1) and identical many pieces of permanent magnets (2), many pieces of permanent magnets (2) big or small identical, shape is identical, magnetic flow is identical, be fixedly installed many pieces of permanent magnets (2) on the rolling disc (1), these many pieces of permanent magnets (2) equably rounded track distribute, and namely 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 rolling disc (1), the magnetic polarity of adjacent two pieces of permanent magnets (2) is opposite, and namely simultaneously to go up the magnetic polarity distribution mode of whole permanent magnets (2) be the N utmost point, the S utmost point, the N utmost point, the S utmost point, the N utmost point, the S utmost point for certain of rolling disc (1)
Also comprise a Hall (3), Hall (3) is positioned at certain one side of rolling disc (1), and Hall (3) is located at the position that also can experience permanent magnets (2) magnetic flow near permanent magnets (2), between Hall (3) and the permanent magnets (2) spacing is arranged; Hall (3) is the Hall that opposite magnetic polarities is produced the square wave output signal;
［ 2 ］ power-assisted model treater (21) is the signal form conv that the digital signal that rolling disc (1) rotates is become 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 24 with velocity calculator) be connected with the Hall (3) of sensitive member; Analogue to digital conversion and velocity calculator (24) calculate the rotating speed that pace of change between each square wave represents rolling disc (1) to the square-wave signal of Hall (3) input;
Analogue to digital conversion is connected 24 with velocity calculator) be connected with power-assisted model calculator (26), power-assisted model memory device (25) also is connected with power-assisted model calculator (26); A certain power-assisted pattern function in rolling disc (1) the selection of speed power-assisted model memory device (25) of power-assisted model calculator (26) usefulness analogue to digital conversion and velocity calculator (24), and with rolling disc (1) speed conditions substitution power-assisted pattern function, calculate suitable 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 the power-assisted model;
Power-assisted model calculator (26) is connected with D and A converter (27), and D and A converter (27) converts the power-assisted model digital signal of power-assisted model calculator (26) to power-assisted model simulation signal;
［ 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.
2. morpet according to claim 1 is with many magnetic patch well-distributed rotating disc type sensor, and it 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. morpet according to claim 2 is with many magnetic patch well-distributed rotating disc type sensor, and it is characterized in that: power-assisted model treater (21) is micro controller system (31), is connected with clock circuit (32) on the micro controller system (31).
4. morpet according to claim 3 is with many magnetic patch well-distributed rotating disc type 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, is connected with thermally dependent resistor R6 between input end 2 pin of OF-17F op amp (28) and mouth 6 pin; 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. any one described morpet is with many magnetic patch well-distributed rotating disc type sensor according to claim 1-4, and it is characterized in that: Hall (3) is located at over against the position of the circular rail trace (5) of many pieces of permanent magnets (2).
6. morpet according to claim 5 is characterized in that with many magnetic patch well-distributed rotating disc type sensor: rolling disc (1) is provided with centre hole in the circle scope of circular rail trace (5) place of many pieces of permanent magnets (2).
7. any one described morpet is characterized in that with many magnetic patch well-distributed rotating disc type sensor according to claim 1-4: rolling disc (1) is plastic flagstone, aluminum board, copper material plate a certain of non-magnet_conductible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220367959.5U CN202783632U (en) | 2012-07-28 | 2012-07-28 | Boosting bicycle rotating disc type sensor with multiple magnetic blocks in uniform distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220367959.5U CN202783632U (en) | 2012-07-28 | 2012-07-28 | Boosting bicycle rotating disc type sensor with multiple magnetic blocks in uniform distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202783632U true CN202783632U (en) | 2013-03-13 |
Family
ID=47810947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220367959.5U Withdrawn - After Issue CN202783632U (en) | 2012-07-28 | 2012-07-28 | Boosting bicycle rotating disc type sensor with multiple magnetic blocks in uniform distribution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202783632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826167A (en) * | 2012-07-28 | 2012-12-19 | 成都宽和科技有限责任公司 | Turntable sensor with uniformly distributed magnetic blocks for moped |
-
2012
- 2012-07-28 CN CN201220367959.5U patent/CN202783632U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826167A (en) * | 2012-07-28 | 2012-12-19 | 成都宽和科技有限责任公司 | Turntable sensor with uniformly distributed magnetic blocks for moped |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202783670U (en) | Boosting bicycle rotating disc type sensor with multiple magnetic blocks nonuniform in position distribution | |
| CN202783683U (en) | Boosting bicycle provided with rotating disc type sensor with multiple uniformly distributed magnetic blocks | |
| CN202847952U (en) | Power-assisting bicycle with multi-magnetic block evenly distributed sensor arranged on motor shell | |
| CN102826173B (en) | Sensor with multiple uniformly distributed magnets in shell | |
| CN202783632U (en) | Boosting bicycle rotating disc type sensor with multiple magnetic blocks in uniform distribution | |
| CN202783659U (en) | Power-assisted bicycle with chain wheel sensor having non-uniformly distributed magnets | |
| CN202783667U (en) | Power-assisted bicycle with chain wheel sensor having non-uniformly distributed magnets | |
| CN202783657U (en) | Electric bicycle with multiple-magnet-position and magnetic flux variation sensor on sprocket | |
| CN202783641U (en) | Sensor unit with multiple magnets uniformly distributed in casing | |
| CN202783656U (en) | Boosting bicycle rotating disc type sensor with multiple magnetic blocks nonuniform in magnetic flux distribution | |
| CN202783668U (en) | Power assisting bicycle with flywheel provided with sensor with multiple uniformly distributed magnetic blocks | |
| CN202896809U (en) | Boosting-bicycle-used rotating disc type sensor with changeable multi-magnetic-block positions and changeable magnetic fluxes | |
| CN202783633U (en) | Boosting bicycle rotating disc type sensor with multiple magnetic block adjustable in position | |
| CN202783661U (en) | Boosting bicycle comprising sensor with motor shell provided with a plurality of magnetic blocks changeable in position and magnetic flux | |
| CN202783634U (en) | Boosting bicycle rotating disc type sensor with multiple magnetic block adjustable in position and magnetic flux | |
| CN202783676U (en) | Power assisting bicycle with flywheel provided with sensor variable in positions of multiple magnetic blocks and magnetic fluxes | |
| CN102785739A (en) | Multi-magnetic block position-adjustable turntable sensor for assisted bicycle | |
| CN202783681U (en) | Power assisting bicycle with flywheel provided with sensor with magnetic blocks nonuniformly distributed in positions | |
| CN202783635U (en) | Power-assisted bicycle with chain wheel sensor having non-uniformly distributed fluxes of magnets | |
| CN202783654U (en) | Boosting bicycle comprising sensor with motor shell provided with magnetic blocks uneven in position distribution | |
| CN202783631U (en) | Sensor unit with multiple magnets uneven in magnetic flux distribution in casing | |
| CN102795306B (en) | Power-assisted bicycle provided with rotating disc type sensor with multiple magnetic blocks in uniform distribution | |
| CN202783629U (en) | Boosting bicycle comprising sensor with motor shell provided with magnetic blocks adjustable in position | |
| CN202783672U (en) | Power assisting bicycle with flywheel provided with sensor adjustable in magnetic block positions | |
| CN202783679U (en) | Power assisting bicycle with flywheel provided with sensor with multiple magnetic blocks nonuniformly distributed in magnetic flux |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20140326 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20140326 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |