CN103513052B - A kind of integral type measurement mechanism of electric motor car - Google Patents
A kind of integral type measurement mechanism of electric motor car Download PDFInfo
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- CN103513052B CN103513052B CN201310475893.0A CN201310475893A CN103513052B CN 103513052 B CN103513052 B CN 103513052B CN 201310475893 A CN201310475893 A CN 201310475893A CN 103513052 B CN103513052 B CN 103513052B
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Abstract
The invention discloses a kind of integral type measurement mechanism of electric motor car, comprise frame, line shaft and the stationary shaft be fixed in frame, line shaft is equipped with flywheel, containing ferromagnetic metalloid material in the sprocket of flywheel, transmission fluted disc stationary shaft is equipped with, flywheel is connected by actuated element with transmission fluted disc, by transmission fluted disc between stationary shaft and line shaft, actuated element and flywheel connection for transmission, also comprise integral type induction mechanism, comprise and be fixed on fixed part in frame and be fixed on line shaft and produce the moving part of change in displacement with the pulling force put on line shaft, integral type induction mechanism also comprises the pulling force inductor of the electric signal displacement of moving part being converted to line shaft under tension size and the speed sensor of sensing flywheel chain tooth spiral rotary speed.The present invention, while the general aluminium hook sensor of solution lacks the potential safety hazard of important velocity information generation and the impact of smooth degree of riding on car load control, does not form any impact to original aluminium hook complete vehicle structure.
Description
Technical field
The present invention relates to measurement mechanism technical field, particularly relate to a kind of integral type measurement mechanism of electric motor car.
Background technology
In prior art, the electric motor car such as battery-operated motor cycle and electric bicycle help helping in the system of stepping on to step on sensor to have for testing the measurement mechanism helping and step on driving-chain pulling force, axis moment and axis floral disc moment etc.Axis torque sensor, also speed sensor signal is had, generally have two kinds of design proposals: a kind of deflection adopting detecting pin axle when stepping on foot-operated, has speed sensitive, this scheme generally deposit foot-operated stressed in any direction time, the signal of stressed size is had to export, cause machine operation, there is very large potential safety hazard, therefore must by whether having certain rate signal stepped on that effectively helps could solve this potential safety hazard, simultaneity factor control is ridden very complicated, and general monolateral moment exports; When adopting detecting pin to step on foot-operated, axle is by the amount of displacement produced after pulling force, and axis is provided with directivity, has speed sensitive.Generally there is left and right pin and help signal output when stepping on to vary in size in this scheme, left and right pin can be made to help when stepping on motor to drive vary in size to affect car load to ride sensation, when chain is subject to other external force, the displacement produced after making axle be subject to pulling force changes and exports the signal of corresponding external force size, motor is caused to work, produce potential safety hazard, therefore also need to judge that having certain helping to step on speed cooperation improving ride sensation control and solution potential safety hazard, also has impact because deformation quantity is larger to variator simultaneously.Floral disc axis torque sensor: have moment and rate signal, but complex structure, cost is high, and profile is clumsy, and before realizing during speed change, structure is more complicated, and fraction defective is high.To general aluminium hook moment or pulling force sensor, do not have detecting to help and step on rate signal, some potential safety hazard and shortcoming below electric vehicle control system exists like this: 1. during electric motor car open state, when chain is subject to other power or judder, cause the deformation that induction hook is certain, aluminium hook sensor outputs signal, machine operation may be caused, so very easily cause personal safety hidden danger, if this has rate signal, the front judgement of drive motor can ride whether there is the just drive motor work of foot-operated certain rotating speed again, when avoiding chain to be subject to other external force or the judder potential safety hazard that causes motor misoperation to bring.2. after electric motor car speed is become heavy, owing to helping, to step on strength smaller, car load vibrations also can cause certain deformation to induction hook, have influence on the data of output, also the control to electric-control system can be affected, this just needs, and the judgement by rate signal is foot-operated helps the situation of stepping on, can the effect of riding of safer and better control.3. be not easy the regulation controlling the 4.2.4.1b clause met in European directive EN15194: when bicyclist stops should providing electric boosted forward when scrunching forward pedal.For there being brake power down function, power-off distance must not more than 5m; For power down function of not braking, power-off distance must not more than 2m.If had foot-operated helping to step on rate signal to above Problems existing, can judge that the helpless situation about stepping on of pin drives fast break to ensure its security to realize motor fast.There is rate signal, so more enriched existing hook moment sensed parameter, can provide to full-vehicle control like this and more enrich sensed parameter, also just controlled the safety of car load and motion better and to ride effect.To above speed sensitive, if car load does not prevent from oppositely helping step on device, speed pickup must have sensing direction function, with prevent from oppositely helping stepped on rate signal export cause motor to delay work, produce very big potential safety hazard.At present, some producer, for solving this problem of hook moment inductor, car load axis increases again one and helps and step on speed pickup.But this kind of mode makes to create impact to complete vehicle structure, turn increases quality hidden danger simultaneously.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of integral type measurement mechanism of electric motor car, by the design of integral type, original pulling force induction mechanism is made improvements, utilize the original flywheel of the car load velocity response mechanism that formed, solve potential safety hazard that general aluminium hook sensor disappearance velocity information produces and on car load ride smooth degree control problem impact simultaneously, any impact is not formed on original aluminium hook complete vehicle structure, there is provided to full-vehicle control and more enrich sensed parameter, promote the security of car load and motion better and to ride effect.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the integral type measurement mechanism providing a kind of electric motor car, comprise frame, line shaft and the stationary shaft be fixed in described frame, described line shaft is equipped with flywheel, containing ferromagnetic metalloid material in the sprocket of described flywheel, transmission fluted disc described stationary shaft is equipped with, described flywheel is connected by actuated element with transmission fluted disc, by transmission fluted disc between described stationary shaft and line shaft, actuated element and flywheel connection for transmission, also comprise integral type induction mechanism, described integral type induction mechanism comprises and is fixed on fixed part in frame and is fixed on line shaft and produces the moving part of change in displacement with the pulling force put on line shaft, described integral type induction mechanism also comprises one and the displacement of moving part is converted to the pulling force inductor of the electric signal of line shaft under tension size and the speed sensor of a sensing flywheel chain tooth spiral rotary speed.
In a preferred embodiment of the present invention, the magnetite that described speed sensor comprises Hall element, sensor circuit and is arranged between described Hall element and sensor circuit, described flywheel is positioned at Hall element side.
In a preferred embodiment of the present invention, the quantity of described Hall element is one, and sensor circuit adopts single Hall mode, when the sprocket on flywheel is through Hall element and magnetite, the change in magnetic field can be caused, by obtaining to the measurement of electromotive force the speed that sprocket rotates.
In a preferred embodiment of the present invention, the quantity of described Hall element is multiple, sensor circuit adopts many Halls mode, when the sprocket of flywheel rotates past Hall element, can judge rotating and reverse of sprocket according to sprocket through the sequencing of each Hall element.
In a preferred embodiment of the present invention, outside described speed sensor, be also provided with at least one shell.
In a preferred embodiment of the present invention, described integral type induction mechanism is provided with the passing-through groove that a part is separated out described moving part, and one end of described groove is provided with the induction cavity for accommodating described pulling force inductor.
In a preferred embodiment of the present invention, described pulling force inductor comprises inductor fixed part, inductor moving part and pulling force sensor circuit, be provided with in described inductor moving part one with pulling force sensor circuit with the use of induction magnetite, be screwed with initial point Voltage Cortrol screw in described inductor moving part.
In a preferred embodiment of the present invention, described pulling force inductor also comprises the spring on the plastic column being sheathed on inductor moving part.
In a preferred embodiment of the present invention, described pulling force inductor and speed sensor are respectively by pulling force inductor signal wire and speed sensor signal wire and extraneous signal transmission.
In a preferred embodiment of the present invention, described integral type induction mechanism offers the signal wire slots of accommodating pulling force inductor signal wire and speed sensor signal wire.
The invention has the beneficial effects as follows: by the design of integral type, original pulling force induction mechanism is made improvements, utilize the original flywheel of the car load velocity response mechanism that formed, while the potential safety hazard solving the generation of general aluminium hook sensor disappearance velocity information and smooth degree control effect problem that car load is ridden, any impact is not formed on original aluminium hook complete vehicle structure, there is provided to full-vehicle control and more enrich sensed parameter, promote the security of car load and motion better and to ride effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the stationary state kinematic train schematic diagram of integral type measurement mechanism one preferred embodiment of a kind of electric motor car of the present invention;
Fig. 2 is the decomposing schematic representation of integral type measurement mechanism one preferred embodiment of a kind of electric motor car of the present invention;
Fig. 3 is the front schematic perspective view of integral type measurement mechanism one preferred embodiment of a kind of electric motor car of the present invention.
Fig. 4 is the back side schematic perspective view of integral type measurement mechanism one preferred embodiment of a kind of electric motor car of the present invention.
In accompanying drawing, the mark of each parts is as follows: 1, frame, 2, line shaft, 3, stationary shaft, 4, transmission fluted disc, 5, flywheel, 6, integral type induction mechanism, 7, fixed part, 8, moving part, 9, pulling force inductor, 10, speed sensor, 11, Hall element, 12, sensor circuit, 13, magnetite, 14, shell, 15, groove, 16, inductor fixed part, 17, inductor moving part, 18, pulling force sensor circuit, 19, induction magnetite, 20, adjustment hole, 21, initial point Voltage Cortrol screw, 22, spring, 23, pulling force inductor signal wire, 24, speed sensor signal wire, 25, signal wire slots, 26, plastic column.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 to Fig. 4, the embodiment of the present invention comprises:
A kind of integral type measurement mechanism of electric motor car, comprise frame 1, line shaft 2 and the stationary shaft 3 be fixed in described frame, flywheel 5 described line shaft is equipped with, containing ferromagnetic metalloid material in the sprocket of described flywheel 5, transmission fluted disc 4 described stationary shaft is equipped with, described flywheel is connected by actuated element with transmission fluted disc, described actuated element comprises chain or belt, by transmission fluted disc between described stationary shaft and line shaft, actuated element and flywheel connection for transmission, also comprise integral type induction mechanism 6, described integral type induction mechanism comprises and is fixed on fixed part in frame 7 and is fixed on line shaft and produces the moving part 8 of change in displacement with the pulling force put on line shaft, described integral type induction mechanism also comprises one and the displacement of moving part is converted to the pulling force inductor 9 of the electric signal of line shaft under tension size and the speed sensor 10 of a sensing flywheel chain tooth spiral rotary speed.
The magnetite 13 that described speed sensor comprises Hall element 11, sensor circuit 12 and is arranged between described Hall element and sensor circuit, described flywheel is positioned at Hall element side.
The quantity of described Hall element is one, sensor circuit adopts single Hall mode, when the sprocket on flywheel is through Hall element and magnetite, can cause the change in magnetic field, by obtaining to the measurement of electromotive force the speed that sprocket rotates, forward exports a pulse signal through a sprocket.Due to foot-operated together with stationary shaft fixed-link, flywheel is linked together by actuated element and transmission fluted disc and stationary shaft, can know foot-operated velocity magnitude by sprocket than computing formula.
The quantity of described Hall element is multiple, sensor circuit adopts many Halls mode, when the sprocket of flywheel rotates past Hall element, rotating and reverse of sprocket can be judged through the sequencing of each Hall element according to sprocket, rate signal output can (as: rotating forward has output of pulse signal by single line output after data processing, when reversion or non rotating, then not output pulse signal, also can distinguish the modes such as rotating by different duty mode and export data), also directly direct for speed data output line can be exported without data processing.The pulse signal more than exported, judges by the time of adjacent pulse the speed that sprocket rotates.This many Halls mode can realize the resolution that simultaneously can also increase the anglec of rotation that to rotate a circle to the sprocket of flywheel to the identification of sprocket sense of rotation, and angular resolution is 360/(chain number of teeth * Hall number).Now, speed pickup is provided with the function detecting sprocket sense of rotation, i.e. direction sensor.In ride, anti-foot-operated custom is stepped on because bicyclist has, now pulling force sensor and speed pickup all can not detect this kind of situation, motor also can continue to drive, cause potential safety hazard, after employing direction sensor, can detect and instead step on foot-operated situation, thus stop motor driving fast, ensure the safety of bicyclist.
At least one shell 14 is also provided with outside described speed sensor; play the effect of protection and fixed speed inductor; shell mechanism shape and fixed form are according to different flywheels; as: the differences such as outer variator flywheel, internal speed changer flywheel also can be different, may be that a shell or the cooperation of multiple mechanism member are fixed on aluminium hook side.
Described integral type induction mechanism is provided with the passing-through groove 15 that a part is separated out described moving part, and one end of described groove is provided with the induction cavity for accommodating described pulling force inductor.
Described pulling force inductor comprises inductor fixed part 16, inductor moving part 17 and pulling force sensor circuit 18, be provided with in described inductor moving part one with pulling force sensor circuit with the use of induction magnetite 19, be screwed with initial point Voltage Cortrol screw 21 in described inductor moving part.
Described integral type induction mechanism side opening is provided with described adjustment hole 20, and described adjustment hole penetrates in induction cavity, and described adjustment hole is used for adjustment screwdriver by regulating initial point voltage in the initial point Voltage Cortrol screw in this hole insertion inductor moving part.Described adjustment hole is apolegamy project in actual applications.The initial electrical signal initial point of pulling force inductor, adopt adjusting hole inside screw axial advance and retreat mode in side to adjust size, after assembling, the after-sales service simultaneously of more convenient adjustment initialize signal initial point is more convenient.Tension measurement principle: when line shaft 2 under tension, line shaft 2 moves moving part 8 to, moving part 8 is made to produce the displacement of a transverse direction, at this moment, sensor circuit 12 and magnetite 13 produce corresponding change in displacement thereupon, sensor circuit 12 senses the corresponding magnetic field intensity that the movement of magnetite 13 brings and produces a corresponding electric signal, electric signal can be simulation signal or digital signal, the size of the value of this electric signal corresponds to the size of the displacement of moving part 8, also the size of line shaft 2 relative to the pulling force of stationary shaft 3 is corresponded to, and by pulling force inductor signal wire 23, this electric signal is exported, thus obtain the size of line shaft 2 relative to the pulling force of stationary shaft 3.
Described pulling force inductor also comprises the spring 22 be sheathed on the plastic column 26 of inductor moving part.
Described pulling force inductor and speed sensor are respectively by pulling force inductor signal wire 23 and speed sensor signal wire 24 and extraneous signal transmission.
Described integral type induction mechanism offers the signal wire slots 25 of accommodating pulling force inductor signal wire and speed sensor signal wire, it makes complete vehicle structure simpler, signal wire can be prevented again to be worn in daily riding simultaneously, thus cause damage, the transmission of affecting parameters.
The outer of draw-in groove place of described integral type induction mechanism and described line shaft is arranged with a counterbore, is used for fixing the nut of locking line shaft, prevents line shaft from coming off from draw-in groove in vehicle travel process, cause potential safety hazard.
The beneficial effect of the integral type measurement mechanism of electric motor car of the present invention is:
By the design of integral type, original pulling force induction mechanism is made improvements, utilize the original flywheel of the car load velocity response mechanism that formed, while the impact that the security hidden trouble and smooth degree of riding on car load that solve the important disappearance velocity information generation of general aluminium hook sensor control, any impact is not formed on original aluminium hook complete vehicle structure, there is provided to full-vehicle control and more enrich sensed parameter, promote the security of car load and motion better and to ride effect.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. the integral type measurement mechanism of an electric motor car, comprise frame (1), line shaft (2) and the stationary shaft (3) be fixed in described frame, flywheel (5) described line shaft is equipped with, containing ferromagnetic metalloid material in the sprocket of described flywheel (5), transmission fluted disc (4) described stationary shaft is equipped with, described flywheel is connected by actuated element with transmission fluted disc, by transmission fluted disc between described stationary shaft and line shaft, actuated element and flywheel connection for transmission, it is characterized in that, also comprise integral type induction mechanism (6), described integral type induction mechanism comprises the fixed part (7) that is fixed in frame and to be fixed on line shaft and to produce the moving part (8) of change in displacement with the pulling force put on line shaft, described integral type induction mechanism also comprises one and the displacement of moving part is converted to the pulling force inductor (9) of the electric signal of line shaft under tension size and the speed sensor (10) of a sensing flywheel chain tooth spiral rotary speed, described pulling force inductor comprises inductor fixed part (16), inductor moving part (17) and pulling force sensor circuit (18), be provided with in described inductor moving part one with pulling force sensor circuit with the use of induction magnetite (19), initial point Voltage Cortrol screw (21) is screwed with in described inductor moving part.
2. the integral type measurement mechanism of electric motor car according to claim 1, it is characterized in that, the magnetite (13) that described speed sensor comprises Hall element (11), sensor circuit (12) and is arranged between described Hall element and sensor circuit, described flywheel is positioned at Hall element side.
3. the integral type measurement mechanism of electric motor car according to claim 2, it is characterized in that, the quantity of described Hall element is one, sensor circuit adopts single Hall mode, when the sprocket on flywheel is through Hall element and magnetite, the change in magnetic field can be caused, by obtaining to the measurement of magnetoelectricity gesture the speed that sprocket rotates.
4. the integral type measurement mechanism of electric motor car according to claim 2, it is characterized in that, the quantity of described Hall element is multiple, sensor circuit adopts many Halls mode, when the sprocket of flywheel rotates past Hall element, rotating and reverse of sprocket can be judged according to sprocket through the sequencing of each Hall element.
5. the integral type measurement mechanism of electric motor car according to claim 2, is characterized in that, is also provided with at least one shell (14) outside described speed sensor.
6. the integral type measurement mechanism of electric motor car according to claim 1, it is characterized in that, described integral type induction mechanism is provided with the passing-through groove (15) that a part is separated out described moving part, and one end of described groove is provided with the induction cavity for accommodating described pulling force inductor.
7. the integral type measurement mechanism of electric motor car according to claim 1, is characterized in that, described pulling force inductor also comprise be sheathed on inductor moving part plastic column (26) on spring (22).
8. the integral type measurement mechanism of electric motor car according to claim 1, is characterized in that, described pulling force inductor and speed sensor are respectively by pulling force inductor signal wire (23) and speed sensor signal wire (24) and extraneous signal transmission.
9. the integral type measurement mechanism of electric motor car according to claim 8, is characterized in that, described integral type induction mechanism offers the signal wire slots (25) of accommodating pulling force inductor signal wire and speed sensor signal wire.
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| CN201310475893.0A CN103513052B (en) | 2013-10-12 | 2013-10-12 | A kind of integral type measurement mechanism of electric motor car |
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| CN201310475893.0A CN103513052B (en) | 2013-10-12 | 2013-10-12 | A kind of integral type measurement mechanism of electric motor car |
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| CN103513052B true CN103513052B (en) | 2016-01-20 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2018536861A (en) * | 2015-12-09 | 2018-12-13 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ | Device for calculating vehicle wheel speed |
| NL1042415B1 (en) * | 2017-06-02 | 2018-12-11 | Idbike B V | Displacement measuring device |
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| JP2000162023A (en) * | 1998-11-30 | 2000-06-16 | Yazaki Corp | Mounting structure of load sensor |
| CN101638135A (en) * | 2009-09-02 | 2010-02-03 | 苏州工业园区同盛车业有限公司 | Speed and leg power sensing device of electric bicycle |
| DE19957632B4 (en) * | 1999-11-30 | 2010-12-30 | Volkswagen Ag | Wheel brake assembly and method for controlling the wheel braking torque |
| CN203606381U (en) * | 2013-10-12 | 2014-05-21 | 昆山攀登变频电子科技有限公司 | All-in-one measurement device for electric bicycle |
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2013
- 2013-10-12 CN CN201310475893.0A patent/CN103513052B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000162023A (en) * | 1998-11-30 | 2000-06-16 | Yazaki Corp | Mounting structure of load sensor |
| DE19957632B4 (en) * | 1999-11-30 | 2010-12-30 | Volkswagen Ag | Wheel brake assembly and method for controlling the wheel braking torque |
| CN101638135A (en) * | 2009-09-02 | 2010-02-03 | 苏州工业园区同盛车业有限公司 | Speed and leg power sensing device of electric bicycle |
| CN203606381U (en) * | 2013-10-12 | 2014-05-21 | 昆山攀登变频电子科技有限公司 | All-in-one measurement device for electric bicycle |
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