CN102673719B - Crank torsion sensor for electric bicycle - Google Patents
Crank torsion sensor for electric bicycle Download PDFInfo
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- CN102673719B CN102673719B CN201210155956XA CN201210155956A CN102673719B CN 102673719 B CN102673719 B CN 102673719B CN 201210155956X A CN201210155956X A CN 201210155956XA CN 201210155956 A CN201210155956 A CN 201210155956A CN 102673719 B CN102673719 B CN 102673719B
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Abstract
The invention discloses a crank torsion sensor for an electric bicycle, which is arranged on the bottom part of an electric bicycle frame and further electrically connected with a controller on the electric bicycle. The crank torsion sensor for the electric bicycle comprises a five-way carrier and a five-way module, wherein the five-way module is in pivot joint with the five-way carrier through a pivoting device causing the five-way module to rotate relative to the five-way carrier; a passage is arranged on the five-way module; a middle shaft on the frame penetrates from the passage; the five-way carrier comprises a carrier face; a side blocking part is arranged on the carrier face; as well, the crank torsion sensor for the electric bicycle comprises a sensing device, used for transmitting the value of the relative displacement or the pressure between one end of the five-way module close to a chain plate and one end of the side blocking part of the five-way carrier close to the chain plate to the controller; the crank torsion sensor for the electric bicycle causes the controller of the electric bicycle to adjust a motor torque according to a collected electric signal so as to result in coordinate work of the electric bicycle with manpower and electricity, and has the advantages of simple and reliable structure, high stability, convenient assembly and low manufacture cost.
Description
Technical field
The present invention relates to the crank torque measurement of inductance category of Electrical Bicycle, be specifically related to a kind of inductor be used to the crank torque of measuring Electrical Bicycle.
Background technology
Electrical Bicycle, refer to using storage battery as auxiliary energy on the basis of ordinary bicycle, the widely used vehicle of the electromechanical integration of the control member such as motor, controller, storage battery, handle brake lever and display instrument system have been installed; Its most important feature is that motor power and rider's legpower is combined, as propulsive effort; For reaching the combination of manpower and electric power, need on the crank torque bang path of electric bicycle pedal, establish a sensing device, size with the moment of torsion of sensing crank, and control according to sensing result the power that motor is exported, the pedal force that applies to alleviate the rider, alleviate rider's tired sense.
Traditional sensor is not measured the crank torque at electric bicycle pedal position, can't judge that the people that rides tramples the moment of torsion of crank while riding, make the organically combination of manpower and electric power, thus easily cause get out of hand while riding, the serious potential safety hazard such as driving while carrying out; And at present moment inductor commonly used is to measure torque signal from the chain drum that Electrical Bicycle rotates, the acquisition of signal of this mode and the poor stability of transmission, and complex structure, productive costs are higher, thereby can't really on market, popularize use.
Summary of the invention
The object of the present invention is to provide a kind of inductor of crank torque for Electrical Bicycle, its structure is simpler, assemble more convenient, the good stability of acquisition of signal and transmission.
A kind of inductor of crank torque for Electrical Bicycle, be arranged at the bottom of electric bicycle fame, and be electrically connected to the controller on being arranged at Electrical Bicycle, and it comprises five-way carriage and five-way module; Hinge device and described five-way carriage are articulated described five-way module in relative rotation by making itself and described five-way carriage;
On described five-way module, be provided with passage, the axis of described Electrical Bicycle runs through in described passage, its two ends expose to respectively the both sides of described five-way module, a wherein end of described axis is mounted with chain drum and a pedal crank of Electrical Bicycle, and the other end is mounted with another crank of Electrical Bicycle; The both sides of described five-way module be respectively near the chain drum side of described Electrical Bicycle chain drum with described chain drum away from and relative chain drum opposite side;
Described five-way carriage comprises the cradle surface of carrying described five-way module for holder, on described cradle surface, is provided with and can produces with the rotation of described five-way module the side block section of the setting of relative displacement; Described side block section comprises that one towards described five-way module and perpendicular to the vertical side walls of described cradle surface be arranged at the horizontal shortwall on described side block section top, and described horizontal shortwall is parallel relative with described cradle surface;
The lateral wall of described five-way module is comprised of rectangular block wall and arcuation wall; Described five-way module arcuation wall comprises horizontal turn of bilge, and described rectangular block wall comprises hyphen section, and described hyphen section and described horizontal turn of bilge join at the top of described five-way module lateral wall, jointly form the outer wall at five-way module top; The hyphen section of described five-way module is in the inboard and cooperation that contacts with it of the horizontal shortwall of described five-way carriage;
Described crank torque inductor also comprises the sensing device that passes to described controller for the relative displacement value by between described five-way module and described five-way bracket side stopper or force value;
Described sensing device is arranged between described five-way module and described five-way bracket side stopper, or is arranged at simultaneously on described five-way module and described five-way carriage.
Preferably, described five-way module is the cylindrical shell of a hollow, and the part of its hollow is described passage; Between the inwall of described electrical bicycle middle shaft and described passage, be provided with bearing;
Described cradle surface is one to be parallel to the direction that the chain disk center of described Electrical Bicycle and the straight line between the flywheel center connect, and is parallel to simultaneously the plane of the axial direction of described passage.
Preferably, described side block section is arranged at the position between described vehicle frame axis and rear axle on described cradle surface;
Described hinge device is near the chain drum opposite side of described five-way module, and the chain drum side of described five-way module can be rotated along the direction that the chain disk center of described Electrical Bicycle and the straight line between the flywheel center connect, produce relative displacement simultaneously and between described side block section.
Preferably, described side block section is vertically installed on described cradle surface; Described hinge device is arranged between described five-way module and described side block section;
Described hinge device comprises a pivot, be arranged on described five-way module be used to making the pivot button that described pivot passes and being arranged at the pivot holder that matches and described pivot is passed with described pivot button on described five-way carriage.
Preferably, the position that is articulated between described five-way module and described five-way carriage is positioned on described horizontal shortwall; Described horizontal shortwall is as described pivot holder, and the part of the close described five-way module chain drum opposite side of the rectangular block wall of described five-way module, to described five-way carriage vertical side walls direction projection, forms described pivot button;
On described horizontal shortwall, be provided be used to penetrating the pivot holder through hole of described pivot; The diameter of axle of described pivot holder through hole is perpendicular to described cradle surface;
Described pivot is buckled and is provided be used to penetrating the pivot button through hole of described pivot, and the upper end open of described pivot button through hole is positioned at the surface of described hyphen section, and the diameter of axle of described pivot button through hole is perpendicular to described cradle surface;
Described pivot is through described pivot holder through hole and described pivot button through hole, and its bottom directly is inserted on described cradle surface; Described five-way carriage and described five-way module are articulated.
Preferably, described sensing device comprises elastic element, an end of described elastic element be arranged at described five-way bracket side stopper on the side of described five-way module, the other end over against described five-way module on the side of described five-way bracket side stopper;
Described sensing device also comprises that can respond to described five-way module passes to the electron displacement sensing element of described controller with respect to the shift value of described five-way carriage and by it, described electron displacement sensing element be arranged at simultaneously on described five-way carriage and described five-way module on;
The position of described elastic element and described electron displacement sensing element is near the chain drum side of described five-way module.
Preferably, described elastic element is spring or shell fragment;
Described electron displacement sensing element comprises a Hall subassembly and can by relative displacement, produce with it permanent magnet of electro-motive force; Described Hall subassembly and described permanent magnet are arranged at respectively on described five-way carriage and described five-way module, and lay respectively on described five-way carriage and described five-way module on two adjacent positions; The electro-motive force that produces between described Hall subassembly and described permanent magnet passes to described controller to the relative shift between described five-way module and described five-way bracket side stopper.
Preferably, described sensing device is respond to described five-way module to the force value of described five-way carriage and it is passed to the electron pressure sensing element of described controller;
Described electron pressure sensing element be arranged at described five-way bracket side stopper on the side with described five-way module, and near the chain drum side of described five-way module.
Preferably, described five-way carriage also comprises a fixed support; Described five-way carriage is fixed in bottom of frame by described fixed support; Described fixed support passes through screw or rivet, or is fixed in described bottom of frame by the mode of welding.
Beneficial effect of the present invention
Crank torque inductor of the present invention, make the controller of Electrical Bicycle regulate the Motor torque size according to the electric signal that gathers, thereby realize the combination of Electrical Bicycle manpower and electric power, co-ordination; Simple in structure, high, easy to assembly to the stability of the collection of signal and transmission, and reduced assembling procedure; Greatly reduce manufacturing cost, be convenient to popularize.
The accompanying drawing explanation
Fig. 1 is the schematic diagram that a specific embodiment of crank torque inductor of the present invention is applied to Electrical Bicycle;
Fig. 2 is the three-dimensional structure diagram of a specific embodiment of crank torque inductor of the present invention;
Fig. 3 is a kind of cutaway view at pivot points place of pivot joint mode of a specific embodiment of crank torque inductor of the present invention;
The three-dimensional structure diagram of the described five-way module when Fig. 4 is pivot joint mode shown in crank torque inductor employing Fig. 3 of the present invention;
Fig. 5 is the cutaway view at pivot points place of another kind of pivot joint mode of a specific embodiment of crank torque inductor of the present invention;
Fig. 6 is the schematic diagram of overlooking after the horizontal shortwall of removal five-way carriage of a specific embodiment of crank torque inductor of the present invention;
Fig. 7 is the spatial structure schematic diagram that is equipped with the electron displacement element of a specific embodiment of crank torque inductor of the present invention;
Fig. 8 is the schematic diagram of overlooking after the horizontal shortwall of removal five-way carriage of the crank torque inductor shown in Fig. 7;
Fig. 9 is the spatial structure schematic diagram that is equipped with the electron pressure element of a specific embodiment of crank torque inductor of the present invention;
Figure 10 is the schematic diagram of overlooking after the horizontal shortwall of removal five-way carriage of the crank torque inductor shown in Fig. 9;
Wherein,
100 electric bicycle fames, 101 axis, 102 is foot-operated, 103 cranks, 104 chains, 105 chain drums,
106 rear axles, 107 flywheels;
1011 axis chain drum ends;
200 five-way carriages, 211 cradle surface, 2121 vertical side walls, 213 horizontal shortwalls, 2131 pivot holder through holes;
230 fixed supports, 231 rivet holes;
310 springs, 321 Hall subassemblies, 322 permanent magnets;
330 electron pressure sensing elements;
400 five-way modules, 401 passages, 402 five-way module chain drum sides, 403 five-way module chain drum opposite sides;
410 rectangular block walls, 411 hyphen sections, 412 pivot buttons, 4121 pivot button through holes, 420 arcuation walls, 421 horizontal turn of bilges;
500 bearings; 601 pivots; 700 another pivot holders;
The specific embodiment:
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tell the truth and execute bright routine book, revise for originally changing the bright crank torque inductor of page, being further elaborated; Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Crank torque inductor of the present invention, will be used to carrying the bottom bracket shell device modularization of electrical bicycle middle shaft, and be equipped with carriage, make pivot joint between five-way module and carriage, and make a side relative with the Electrical Bicycle chain drum on the close five-way module of pivoting point between the two, and then a side of the close Electrical Bicycle chain drum of five-way module can be rotated around pivoting point; So just make can under the people's that rides pedal force effect, produce small relative displacement between five-way module and carriage, and the electric signal transmission that will represent turning effort or rotation displacement by sensing device is to the controller on Electrical Bicycle, make controller can release according to corresponding data the size of crank torque on Electrical Bicycle, and the output torque of self-regulation motor, manpower and electric power are reasonably coordinated, alleviate people's tired sense, effectively bring into play the effect of motor.
As shown in Figure 1 to Figure 3, the inductor of the crank torque for Electrical Bicycle in the present embodiment, be arranged at the bottom of electric bicycle fame 100, and be electrically connected to the controller on being arranged at Electrical Bicycle, described crank torque inductor comprises five-way carriage 200 and five-way module 400, and hinge device and five-way carriage 200 are articulated five-way module 400 in relative rotation by making itself and five-way carriage 200;
On five-way module 400, be provided with passage 401; The axis 101 of described Electrical Bicycle runs through in passage 401, its two ends expose to respectively the both sides of five-way module 400, and a wherein end of axis 101 is mounted with chain drum 105 and a pedal crank 103 of Electrical Bicycle; The other end of axis 101 is mounted with another crank of Electrical Bicycle; The both sides of five-way module 400 are respectively the chain drum side 402 near Electrical Bicycle chain drum 105 as shown in Figure 6, and with chain drum 105 away from and relative chain drum opposite side 403;
Five-way carriage 200 comprises the cradle surface 211 of carrying described five-way module for holder, on cradle surface 211, is provided with the side block section that produces the setting of relative displacement with the rotation of five-way module 400
Preferably, the five-way module 400 in the present embodiment is the cylindrical shell of a hollow, and the part of its hollow is passage 401; Between the inwall of described electrical bicycle middle shaft 101 and passage 401, be provided with bearing 500;
Cradle surface 211 is one to be parallel to the direction that the straight line between described Electrical Bicycle chain drum 105De center and flywheel 107De center connects, and is parallel to simultaneously the plane of the axial direction of passage 401; Thereby make the cradle surface 211 in the present embodiment can guarantee that the direction that five-way module 400 is rotated with respect to five-way carriage 200 is the direction that connects along the straight line between chain drum 105De center and flywheel 107De center, as shown in Figure 1.
Preferably, as shown in Figure 2 and Figure 6, the described side block section in the present embodiment is arranged at the position between electric bicycle fame axis 101 and rear axle on cradle surface 211; Described hinge device is near the chain drum opposite side 403 of five-way module, and make the chain drum side 402 of five-way module for line, change and to connect the direction that page connects and rotate along changing of repairing of the central bay book of saying in mind in the chain drum 105De center of Electrical Bicycle and flywheel 107 is straight, produce relative displacement simultaneously and between described side block section; Because the dependent interaction power such as torsion of the crank of the people's that rides pedal force, Electrical Bicycle are all transmitted by chain, a side and five-way carriage near chain drum 105 on five-way module 400 relatively rotated, can make numerical value that in the present embodiment, the crank torque inductor is sensed more near actual service condition.
Preferably, described side block section is vertically installed on described cradle surface; Described hinge device is arranged between five-way module 400 and described side block section; Make five-way module 400 rotation can and described side block section between produce relative displacement, be convenient to measure corresponding data.
Further, described hinge device comprise pivot 601, be arranged on five-way module 400 be used to making the pivot button that pivot 601 passes and being arranged at matching with described pivot button and pivot holder be used to pivot 601 is passed on five-way carriage 200.
Preferably, as shown in Figures 2 and 3, described side block section comprise one towards five-way module 400 and perpendicular to cradle surface 211 to vertical side walls 2121 and be arranged at the horizontal shortwall 213 on side block section 212 tops, laterally shortwall 213 is parallel relative with cradle surface 211;
The lateral wall of five-way module 400 is comprised of rectangular block wall 410 and arcuation wall 420; Five-way module arcuation wall 420 comprises horizontal turn of bilge 421, and rectangular block wall 410 comprises hyphen section 411, and hyphen section 411 and horizontal turn of bilge 421 join at the end face in five-way module 400 outsides; The hyphen section 411 of described five-way module is in the inboard and cooperation that contacts with it of the horizontal shortwall 213 of described five-way carriage; By the location of horizontal shortwall 213 as the upward direction of five-way module 400, make the rotation of five-way module 400 on the five-way carriage more stable, more reliable, can not cause because of relatively rotating the generation of unexpected situation, assurance bicyclist's riding safety, reliable.
Further, as shown in Figure 3 and Figure 4, the position that is articulated between five-way module 400 and five-way carriage 200 is positioned on horizontal shortwall 213; Laterally shortwall 213 is as described pivot holder, and the part of the close five-way module chain drum opposite side 403 of the rectangular block wall 410 of five-way module, to five-way carriage vertical side walls 2121 direction projections, forms pivot button 412;
Laterally on shortwall 213, be provided be used to penetrating the pivot holder through hole 2131 of pivot 601, the diameter of axle of pivot holder through hole 2131 is perpendicular to cradle surface 211;
On pivot button 412, be provided be used to penetrating the pivot button through hole 4121 of pivot 601, the upper end open of pivot button through hole 4121 is positioned at the surface of hyphen section 411, and the diameter of axle in pivot buckle shaft hole 4121 is perpendicular to cradle surface 211;
Described crank torque inductor in the present embodiment, also comprise the described sensing device that passes to described controller for the relative displacement value by between five-way module 400 and five-way bracket side stopper 212 or force value; Described sensing device is arranged between five-way module 400 and five-way bracket side stopper 212, or is arranged at simultaneously on five-way module 400 and five-way carriage 200; And the position of described sensing device is near described five-way module chain drum side 402; Because the dependent interaction power such as torsion of the crank of the people's that rides pedal force, Electrical Bicycle all pass to Electrical Bicycle by chain, the chain drum side 402 of five-way module is to rotate end simultaneously, and because five-way module 400 is more small with respect to the amount of spin of five-way carriage 200, therefore, the position of described sensing device is the closer to five-way module chain drum side 402, and the data of its sensing are more accurate.
Further, five-way module 400 in the present embodiment is independently modules, can in five-way carriage 200, carry out the rotation of certain amplitude, and by described sensing device, the chain drum side 402 of five-way module is converted into to electric signal transmission to controller with respect to five-way bracket side stopper 212 at displacement or the application force of chain drum side 402 1 sides after stressed, make controller according to electric signal, regulate the size of motor output torque, realize the coordination of manpower and Che Li.
Preferably, the described sensing device in the present embodiment comprises elastic element;
One end of described elastic element be arranged at described five-way bracket side stopper on the side of described five-way module, the other end over against five-way module 400 on the side of described five-way bracket side stopper;
Described sensing device also comprises the electron displacement sensing element, and described electron displacement sensing element can be responded to the relative displacement value of described five-way module chain drum side 402 rotations and it is passed to described controller; Described electron displacement sensing element be arranged at simultaneously on described five-way carriage and five-way module 400 on, and the position of described elastic element and described electron displacement sensing element is near the chain drum side 402 of described five-way module.In the present embodiment, by described elastic element, make to set up linear relationship between the moment of torsion of five-way module 400 and the displacement in five-way carriage 200 and crank, by described electron displacement sensing element, will represent that the electric signal transmission of shift value is to controller again, make controller can instead release the size of crank torque, and the output torque of adjusting Electrical Bicycle, realize the combination of manpower and electric power.
Further, as shown in Figure 7, described elastic element can be spring or shell fragment; Described elastic element in the present embodiment is spring 310, and described spring 310 is arranged on described vertical side walls 2121, and its position is near the chain drum side 402 of described five-way module;
Preferably, as shown in Figure 7, described electron displacement sensing element comprises a Hall subassembly 321 and can by relative displacement, produce with it permanent magnet 322 of electro-motive force; Hall subassembly 321 and permanent magnet 322 are arranged at respectively on five-way carriage 200 and five-way module 400, and be arranged at be positioned on five-way carriage 200 and five-way module 400 on two adjacent positions; The electro-motive force that produces between Hall subassembly 321 and permanent magnet 322 passes to controller to the relative shift between the chain drum side 402 of the part of the close chain drum side 402 of five-way bracket side stopper 212 and five-way module 400.
Further, Hall subassembly 321 in the present embodiment is arranged at the top of five-way bracket side stopper 212, permanent magnet 322 is embedded in the hyphen section 421 of five-way module, and close as much as possible between Hall subassembly 321 and permanent magnet 322, make simultaneously the chain drum side 402 of the position of the two near described five-way module, so that accurate sensing rotation data.As other embodiments, Hall subassembly 321 and permanent magnet 322 can be arranged at respectively other position on five-way carriage 200 and five-way module 400, but keep the active distance between the two, so that sensing five-way module 400 is with respect to the displacement of the close five-way module chain drum side 402 of five-way carriage 200 accurately.
Preferably, as another embodiment of the invention, as shown in Figure 9, described sensing device can also be electron pressure sensing element 330; The force value of 400 pairs of five-way carriages of electron pressure sensing element 330 induction five-way modules also passes to described controller by it; Shown in electron pressure sensing element 330 be arranged at described five-way bracket side stopper on the side with five-way module 400, and near the chain drum side 402 of described five-way module; Electron pressure sensing element 330 in the present embodiment is arranged on the vertical side walls 2121 of described five-way carriage, and described use electron pressure sensing element 330 can make the controller direct derivation go out the moment of torsion of crank, and regulate in real time; Because the dependent interaction power such as torsion of the crank of Electrical Bicycle all pass to Electrical Bicycle by chain, so the position of electron pressure sensing element 330 on five-way carriage 200, the closer to the chain drum side 402 of five-way module, the force value of 400 pairs of five-way carriages of five-way module that it is measured is just more accurate.
Preferably, five-way carriage 200 also comprises a fixed support 230 as shown in Figure 2; Five-way carriage 200 is fixed in vehicle frame 100 bottoms by fixed support 230; Fixed support 230 is fixed in vehicle frame 100 bottoms by screw or rivet, or is fixedly welded on vehicle frame 100 bottoms; On fixed support 230 in the present embodiment, be provided with for the fixing rivet hole 231 of rivet.
The principle of work of the crank torque inductor in the present embodiment is: as Fig. 1 and shown in Figure 6, when the people that rides tramples stretcher 102, produce a downward pedal force F1, its corresponding torque T 1=F1xL1(L1 is the arm of force of pedal force F1); Simultaneously chain 104 tensions, and produce an antagonistic force F2, corresponding torque T 2=F2xL2(L2 is the arm of force of antagonistic force F2, due to chain 104 on the edge of chain drum 105 circumference, therefore L2 is the radius of chain drum 105); Due to chain drum 105, be positioned at the axis chain drum end 1011 of five-way module chain drum side 402, therefore, when antagonistic force F2 conducts to axis chain drum end 1011, make it produce one and the equal pressure F3 of antagonistic force F2; Then axis chain drum end 1011 conducts to five-way module chain drum side 402 to pressure F3 by bearing 500, due to pivot joint between the chain drum opposite side 403 of five-way module and five-way carriage 200, therefore make five-way module chain drum side 402 under the effect of pressure F3, take pivot 600 as the center of circle and with the direction that relies on five-way bracket side stopper 212, rotate;
Further, as a kind of embodiment, when described sensing device adopts elastic element 310 and electron displacement sensing element 320; As shown in Figure 7 and Figure 8, the elastic element 310 in the present embodiment is spring, and the one end is arranged on the rectangle plane wall 212 of five-way bracket side stopper, and the other end is over against the rectangular block wall 410 of five-way module; Spring 310 is mentioned the page compressing shrinkage distortion that bright anti-book presses modification power to change for F4, and the elasticity modulus of setting this spring 310 is K, and the rotation displacement distance of five-way module 400 in five-way carriage 200 is Δ L, counter pressure F4=Kx Δ L; Because antagonistic force F2=pressure F3,
And due to F4XL4=F3XL3(L3, be the arm of force of pressure F3, L4 is the arm of force of counter pressure F4),
So F4XL4=F2XL3, so and then draw F2=F4XL4 ÷ L3; Because F4=Kx Δ L,
So F2=Kx Δ LXL4 ÷ L3; Because T2=F2xL2,
So T2=Kx Δ LXL4 ÷ L3xL2; Because pedal force torque T 1 equates with antagonistic force torque T 2, can show that therefore the functional relation of the displacement of the moment of torsion of crank 103 and five-way module chain drum side 402 is: T1=Kx Δ L XL4 ÷ L3xL2;
Further, because the top in five-way bracket side stopper 212 is provided with Hall subassembly 321, in the hyphen section 411 of five-way module 400, be provided with permanent magnet 322; By the electro-motive force that produces between Hall subassembly 321 and permanent magnet 322, can pass to described controller to five-way module 400 by the slide displacement distance, delta L in five-way carriage 200; controller is according to the elasticity modulus K of Δ L numerical value, spring 310 and the radius L2 of electric bicycle wheel disc, by the moment of torsion formula T1=Kx Δ L XL4 ÷ L3xL2 of described crank 103; , the counter size of releasing the torque T 1 of crank 103, then automatically regulate the output torque size of electric bicycle motor according to the size of the moment of torsion of crank 103, thereby realize the combination of manpower and electric power.
Further, as another kind of embodiment, as shown in Figure 9 and Figure 10, when described sensing device adopts electronic pressure-sensing element 330; The large I of counter pressure F4 is directly measured by electron pressure sensing element 330;
Because antagonistic force F2=pressure F3, and F4XL4=F3XL3,
So F4XL4=F2XL3, so F2=F4XL4 ÷ L3; Because T2=F2xL2,
So T2=F4XL4 ÷ L3xL2; Because pedal force torque T 1 equates with antagonistic force torque T 2,
The functional relation that therefore can draw the displacement of the moment of torsion of crank 103 and five-way module chain drum side 402 is: T1=F4XL4 ÷ L3xL2;
When electron pressure sensing element 330 the electric signal transmission that represents counter pressure F4 size during to controller, the size of the torque T 1 of the crank 103 that controller also can instead be released, and the output torque size of automatically regulating electric bicycle motor, thereby also can realize the combination of Electrical Bicycle manpower and electric power.
Finally it should be noted that obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these were revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also was intended to comprise these changes and modification.
Claims (9)
1. the inductor of the crank torque for Electrical Bicycle, be arranged at the bottom of electric bicycle fame, and be electrically connected to the controller on being arranged at Electrical Bicycle, it is characterized in that: comprise five-way carriage and five-way module; Hinge device and described five-way carriage are articulated described five-way module in relative rotation by making itself and described five-way carriage;
On described five-way module, be provided with passage, the axis of described Electrical Bicycle runs through in described passage, its two ends expose to respectively the both sides of described five-way module, a wherein end of described axis is mounted with chain drum and a pedal crank of Electrical Bicycle, and the other end is mounted with another crank of Electrical Bicycle; The both sides of described five-way module be respectively near the chain drum side of described Electrical Bicycle chain drum with described chain drum away from and relative chain drum opposite side;
Described five-way carriage comprises the cradle surface of carrying described five-way module for holder, on described cradle surface, is provided with and can produces with the rotation of described five-way module the side block section of the setting of relative displacement; Described side block section comprises that one towards described five-way module and perpendicular to the vertical side walls of described cradle surface be arranged at the horizontal shortwall on described side block section top, and described horizontal shortwall is parallel relative with described cradle surface;
The lateral wall of described five-way module is comprised of rectangular block wall and arcuation wall; Described five-way module arcuation wall comprises horizontal turn of bilge, and described rectangular block wall comprises hyphen section, and described hyphen section and described horizontal turn of bilge join at the top of described five-way module lateral wall, jointly form the outer wall at five-way module top; The hyphen section of described five-way module is in the inboard and cooperation that contacts with it of the horizontal shortwall of described five-way carriage;
Described crank torque inductor also comprises the sensing device that passes to described controller for the relative displacement value by between described five-way module and described five-way bracket side stopper or force value;
Described sensing device is arranged between described five-way module and described five-way bracket side stopper, or is arranged at simultaneously on described five-way module and described five-way carriage.
2. crank torque inductor according to claim 1 is characterized in that:
Described five-way module is the cylindrical shell of a hollow, and the part of its hollow is described passage; Between the inwall of described electrical bicycle middle shaft and described passage, be provided with bearing;
Described cradle surface is one to be parallel to the direction that the chain disk center of described Electrical Bicycle and the straight line between the flywheel center connect, and is parallel to simultaneously the plane of the axial direction of described passage.
3. crank torque inductor according to claim 2 is characterized in that:
Described side block section is arranged at the position between described vehicle frame axis and rear axle on described cradle surface;
Described hinge device is near the chain drum opposite side of described five-way module, and the chain drum side of described five-way module can be rotated along the direction that the chain disk center of described Electrical Bicycle and the straight line between the flywheel center connect, produce relative displacement simultaneously and between described side block section.
4. crank torque inductor according to claim 3 is characterized in that:
Described side block section is vertically installed on described cradle surface; Described hinge device is arranged between described five-way module and described side block section;
Described hinge device comprises a pivot, be arranged on described five-way module be used to making the pivot button that described pivot passes and being arranged at the pivot holder that matches and described pivot is passed with described pivot button on described five-way carriage.
5. crank torque inductor according to claim 4 is characterized in that:
The position that is articulated between described five-way module and described five-way carriage is positioned on described horizontal shortwall; Described horizontal shortwall is as described pivot holder, and the part of the close described five-way module chain drum opposite side of the rectangular block wall of described five-way module, to described five-way carriage vertical side walls direction projection, forms described pivot button;
On described horizontal shortwall, be provided be used to penetrating the pivot holder through hole of described pivot; The diameter of axle of described pivot holder through hole is perpendicular to described cradle surface;
Described pivot is buckled and is provided be used to penetrating the pivot button through hole of described pivot, and the upper end open of described pivot button through hole is positioned at the surface of described hyphen section, and the diameter of axle of described pivot button through hole is perpendicular to described cradle surface;
Described pivot is through described pivot holder through hole and described pivot button through hole, and its bottom directly is inserted on described cradle surface; Described five-way carriage and described five-way module are articulated.
6. the described crank torque inductor of according to claim 1 to 5 any one is characterized in that:
Described sensing device comprises elastic element, an end of described elastic element be arranged at described five-way bracket side stopper on the side of described five-way module, the other end over against described five-way module on the side of described five-way bracket side stopper;
Described sensing device also comprises that can respond to described five-way module passes to the electron displacement sensing element of described controller with respect to the shift value of described five-way carriage and by it, described electron displacement sensing element be arranged at simultaneously on described five-way carriage and described five-way module on;
The position of described elastic element and described electron displacement sensing element is near the chain drum side of described five-way module.
7. crank torque inductor according to claim 6 is characterized in that:
Described elastic element is spring or shell fragment;
Described electron displacement sensing element comprises a Hall subassembly and can by relative displacement, produce with it permanent magnet of electro-motive force; Described Hall subassembly and described permanent magnet are arranged at respectively on described five-way carriage and described five-way module, and lay respectively on described five-way carriage and described five-way module on two adjacent positions; The electro-motive force that produces between described Hall subassembly and described permanent magnet passes to described controller to the relative shift between described five-way module and described five-way bracket side stopper.
8. the described crank torque inductor of according to claim 1 to 5 any one is characterized in that:
Described sensing device is respond to described five-way module to the force value of described five-way carriage and it is passed to the electron pressure sensing element of described controller;
Described electron pressure sensing element be arranged at described five-way bracket side stopper on the side with described five-way module, and near the chain drum side of described five-way module.
9. crank torque inductor according to claim 1 is characterized in that:
Described five-way carriage also comprises a fixed support; Described five-way carriage is fixed in bottom of frame by described fixed support; Described fixed support passes through screw or rivet, or is fixed in described bottom of frame by the mode of welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210155956XA CN102673719B (en) | 2011-06-09 | 2012-05-18 | Crank torsion sensor for electric bicycle |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101524937A CN102295054A (en) | 2011-06-09 | 2011-06-09 | Crank torque sensor of electric bicycle |
| CN201110152493.7 | 2011-06-09 | ||
| CN201210155956XA CN102673719B (en) | 2011-06-09 | 2012-05-18 | Crank torsion sensor for electric bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102673719A CN102673719A (en) | 2012-09-19 |
| CN102673719B true CN102673719B (en) | 2013-11-20 |
Family
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Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101524937A Pending CN102295054A (en) | 2011-06-09 | 2011-06-09 | Crank torque sensor of electric bicycle |
| CN 201220226817 Expired - Lifetime CN202609019U (en) | 2011-06-09 | 2012-05-18 | Crank torque sensor used for electric bicycle |
| CN201210155956XA Expired - Fee Related CN102673719B (en) | 2011-06-09 | 2012-05-18 | Crank torsion sensor for electric bicycle |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101524937A Pending CN102295054A (en) | 2011-06-09 | 2011-06-09 | Crank torque sensor of electric bicycle |
| CN 201220226817 Expired - Lifetime CN202609019U (en) | 2011-06-09 | 2012-05-18 | Crank torque sensor used for electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN102295054A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620873B (en) * | 2012-03-08 | 2013-10-23 | 陕西理工学院 | Double-eccentric dynamic torque and rotation speed sensor |
| CN106275225A (en) * | 2016-08-25 | 2017-01-04 | 梁德 | The moment of torsion of a kind of moped and gradient induction system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001091380A (en) * | 1999-08-17 | 2001-04-06 | Shoken Ri | Torque meter |
| JP4428825B2 (en) * | 2000-07-06 | 2010-03-10 | パナソニック株式会社 | Torque detection device for electric bicycle and electric bicycle using the same |
| CN101793575A (en) * | 2010-04-02 | 2010-08-04 | 尚林山 | Crank torque measuring device |
| DE102009029653A1 (en) * | 2009-09-22 | 2011-03-24 | Robert Bosch Gmbh | Crank drive for bicycle, comprises foot pedal shaft, two foot pedals, and hollow shaft, in which foot pedal shaft is arranged, where hollow shaft has permanent magnetic field and two bearings |
| CN102192802A (en) * | 2010-03-19 | 2011-09-21 | 尚林山 | Torque transducer for electric bicycle |
-
2011
- 2011-06-09 CN CN2011101524937A patent/CN102295054A/en active Pending
-
2012
- 2012-05-18 CN CN 201220226817 patent/CN202609019U/en not_active Expired - Lifetime
- 2012-05-18 CN CN201210155956XA patent/CN102673719B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001091380A (en) * | 1999-08-17 | 2001-04-06 | Shoken Ri | Torque meter |
| JP4428825B2 (en) * | 2000-07-06 | 2010-03-10 | パナソニック株式会社 | Torque detection device for electric bicycle and electric bicycle using the same |
| DE102009029653A1 (en) * | 2009-09-22 | 2011-03-24 | Robert Bosch Gmbh | Crank drive for bicycle, comprises foot pedal shaft, two foot pedals, and hollow shaft, in which foot pedal shaft is arranged, where hollow shaft has permanent magnetic field and two bearings |
| CN102192802A (en) * | 2010-03-19 | 2011-09-21 | 尚林山 | Torque transducer for electric bicycle |
| CN101793575A (en) * | 2010-04-02 | 2010-08-04 | 尚林山 | Crank torque measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102673719A (en) | 2012-09-19 |
| CN102295054A (en) | 2011-12-28 |
| CN202609019U (en) | 2012-12-19 |
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