CN201120853Y - Electromagnetic damping brake device for electric vehicle - Google Patents
Electromagnetic damping brake device for electric vehicle Download PDFInfo
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- CN201120853Y CN201120853Y CNU200720190092XU CN200720190092U CN201120853Y CN 201120853 Y CN201120853 Y CN 201120853Y CN U200720190092X U CNU200720190092X U CN U200720190092XU CN 200720190092 U CN200720190092 U CN 200720190092U CN 201120853 Y CN201120853 Y CN 201120853Y
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- brake
- hall element
- magnetic sheet
- linear hall
- braking
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Abstract
The utility model relates to an electromagnetism damping braking device used for electro-mobile, which belongs to the electro-mobile technical field. The device mainly comprises a braking rod arranged in the braking lever, double magnetic sheets and a linearity hall element, wherein the linearity hall element is fixed in the braking lever, the braking rod is moving with the braking lever handle, the first magnetic sheet is fixed on one side of the linearity hall element and a small clearance is provided between the first magnetic sheet and the linearity hall element, the second magnetic sheet is fixed to the end surface of the braking lever which is close to the other side of the linearity hall element; the N pole of the first magnetic sheet is arranged opposite to the S pole of the second magnetic sheet; the power line, signal line and ground line are all connected to the controller of the electro-mobile. The electromagnetism damping braking device can change the speed with smartness and humanization based on the specific situation of the human feeling and the riding environment, and has the advantages that the device is safer, more comfortable and more energy saving.
Description
Technical field
The utility model belongs to the vehicle technology field, particularly the improvement of its brake system technology.
Background technology
The digital brake system of electric vehicle electromagnetic damping utilizes the diverse location of linear hall sensor in magnetic field can export the principle of 0-5V voltage digital signal continuously, with itself and battery-driven car mechanical brake system synchronization, in braking procedure, the corresponding dutycycle of digital signal that receives after the digital signal equally with digital signal output and sensor output voltage by controller makes electric power generation produce electromagnetic damping, reaches the purpose of braking.
In present battery-driven car, for security needs, when carrying out braking maneuver, motor continues the danger that power supply, car load continue preshoot when preventing charged brake, must disconnect the motor power supply earlier.The system that braking maneuver is carried out in this disconnection motor power supply earlier again is referred to as the power-off brake system.
In electric two-wheel vehicles such as Electrical Bicycle, Moped Scooter, battery-operated motor cycle, the parts of realizing this function are the outage brake lever, the position that the left and right sides that is installed in handlebar and ordinary bicycle, motor bike brake lever 3 are identical.When bicyclist's the right hand is clutched right side brake lever execution brake, in the process of tightening up the front wheel brake lock, disconnect the motor power supply at first immediately, progressively make mechanical brake parts (being generally pincerlike lock or cantilever brake etc.) hold the front-wheel wheel tightly again, wheel is stopped operating, reach the purpose of braking.Equally, when bicyclist's left hand is clutched left side brake lever execution brake, in the process of tightening up the trailing wheel damper brake, also be to disconnect the motor power supply at first immediately, progressively make mechanical brake parts (be generally band-type brake, servo-actuated rise lock, disc brake etc.) hold the trailing wheel wheel tightly again, the trailing wheel wheel is stopped operating, reach the purpose of braking.Here, before not reaching braking as yet in mechanical brake mechanism, holding wheel tightly, at first stop the motor power supply, brake is carried out under no electrically operated situation, increased the safety and the reliability of braking.
In four-wheeled (small passenger car, utility van, mini-bus, big bus car etc.), what realize braking function is mechanical pedal brake system.Equally in electric four-wheel vehicle, for security needs, when carrying out braking maneuver, motor continues the danger that power supply, car load continue preshoot when preventing charged brake, also must stop the motor power supply earlier, carries out braking maneuver again.The system that braking maneuver is carried out in cut-out motor power supply earlier more also is referred to as the power-off brake system.Though still there is not this product at present, its principle also should be the firm action of foot brake mechanical system, must cut off the motor power supply earlier and implement the mechanical brake system again.The utility model is for the time being they service brake systems that is referred to as to cut off the power supply.
The outage brake lever that present electric two-wheel vehicle is used divides two kinds: mechanical brake lever and electronics brake lever.
The principle of work of machinery brake lever: an electrode A and electrode B are arranged in the mechanical brake lever, and 0 line in the 5V brake signal line that slave controller extracts is broken into lead A, B and links to each other with the wiring end points of electrode A, B respectively.Under the normal circumstances, the outage brake lever is in relaxed state, and the bar 1 of stopping is under pressure and is in left, and compressing electrode A, B are in off-state, shown in Fig. 1 (a).During brake, bicyclist one pinches brake lever, has just removed the compressing to the bar of stopping, and the bar 1 of stopping moves to right-hand, and shown in Fig. 1 (b), electrode A, B connect, and this just means the 0 line connection in the 5V brake signal line, and controller detects brake signal at once, closes the power machine power supply.Continue to apply the handbrake, the mechanical brake system works is progressively held wheel tightly, and wheel stops operating, and then car load slides behind the segment distance out of service.
The electronics brake lever adopts the switch Hall device and is installed in a magnetic sheet realization outage of the bar of stopping, and its principle of work as shown in Figure 2.Under the normal circumstances, the outage brake lever is in relaxed state, and at this moment, bar 21 pressurizeds of stopping are in the diagram left, and shown in Fig. 2 (a), three pig-tail wire 5V lines, signal wire (SW) and 0 line 221 of switch Hall device 22 link to each other with controller.Their voltage is respectively 5V power line voltage, hall signal voltage (generally being 0V or a lower voltage) and 0V ground wire voltage.The bicyclist needs only one and pinches brake lever, and brake lever is disengaged the compressing of the bar of stopping, and the bar of stopping moves right, and shown in Fig. 2 b, magnetic sheet 23 moves past from switch Hall device top, and the signal voltage pulse output about 5V is just arranged on the signal wire (SW) this moment.Controller detects this pulse signal voltage, closes the power machine power supply.Continue to apply the handbrake, the mechanical brake system starts working, and progressively holds wheel tightly, and wheel stops operating, and then car load slides behind the segment distance out of service.
Because the complete vehicle quality m of electric two-wheel vehicle is heavier than ordinary bicycle, moving velocity v is faster than ordinary bicycle, the Kinetic Energy Calculation formula in operational process: E=1/2mv
2Kinetic energy when Electrical Bicycle travels is more much bigger than ordinary bicycle, apply the brakes outage principle only, other the same with ordinary bicycle, motor bike braking principle, stop mechanism and brake mode just seem not much of that, do not increase the braking dynamics because make full use of the electric power generation function of battery-driven car.
For reliability and the braking dynamics that increases braking, in the design of existing battery-driven car, utilize electrical motor, controller and battery to form the C/LOOP of conducting, rotate under these specified conditions the principle that can generate electricity, produce very big electromagnetic resistance at motor, produce and to generate electricity, carry out the electromagnetic braking control technology of braking maneuver simultaneously.So the design-calculated benefit is that stopping distance can shorten greatly, and sensitivity is greatly improved, but this design also exists technological deficiency and potential safety hazard simultaneously.At first, if braking maneuver is in case carry out, start electricity generate function immediately, if the dutycycle of controller output is excessive, for example 100%, auxiliary simultaneously with the mechanical brake function, be to realize the dead purpose of stopping immediately, wheel can stop operating very soon, but when turning round, if this kind situation will be turned on one's side, constitute potential safety hazard.Even without starting mechanical brake, the brake action that overgenerous self power generation produces also is very fierce.And the bicyclist is also uncomfortable.In order to solve this technological deficiency, adopt so-called " soft ABS " technology, be the dutycycle of self power generation is set smaller, for example 50%.Do like this, can alleviate the fierce degree of dynamic brake slightly, but still undesirable.Because brake is strong and weak and the yardstick that relaxes is fixed extremely with the setting of controller producer, so in most cases and do not meet bicyclist's actual requirement.For example, if the bicyclist only thinks to slow down some speed of a motor vehicle slightly and one pinches brake lever gently, because electricity generate function starts, the speed of a motor vehicle also can descend immediately significantly, concerning the cyclist, will feel that braking is too strong and uncomfortable.Simultaneously, because that the speed of a motor vehicle descends is too fast, restarting also can the consumes battery electric energy, can cause the controller heating in addition even burns.And having unexpectedly incident, under the dead situation of need stopping immediately, owing to the electromagnetic damping dynamics of callipers brake car is difficult to realize braking immediately the dead purpose of stopping inadequately.Its reason mainly is that the outage principle of using at present all is to produce 0,1 signal condition, and neither one has the M signal state of transition nature.
Summary of the invention
The purpose of this utility model is exactly for overcoming the above problems, design the digital brake equipment of a kind of electric vehicle electromagnetic damping, can change the speed of a motor vehicle according to people's the sensation and the particular case of the environment of riding more flexible and user-friendlyly, have safer, more comfortable, more reliable, more energy-conservation characteristics.
Device of the present utility model mainly comprises: be arranged on brake member, magnetic sheet and linear hall element in the brake system, linear hall element is fixed in the brake system, brake member moves with brake, it is characterized in that, comprise two magnetic sheets, first magnetic sheet is fixed on a side of linear hall element and with linear hall element one little gap is arranged, and second magnetic sheet is fixed on the brake member by the linear hall element opposite side; The N utmost point of this first magnetic sheet and the S of second magnetic sheet are extremely staggered relatively, and this linear hall element is between two magnetic sheets, and the signal of this linear hall element is drawn lead and is connected on the controller.
The little gap of first magnetic sheet and linear hall element can be 0.5mm-1mm.
When brake member was not subjected to brake-pressure, second magnetic sheet and linear hall element also can have the gap of a 0.5mm-1mm.
Described brake member can be the stop bar or the plate of stopping.
Characteristics of the present utility model and good result:
1, the brake outage rapidly.Machinery brake lever and the electronics brake lever bar that all needs to stop moves a bigger stroke and could realize that the 0-1 of signal voltage changes, and this device can be from brake, and controller detects the voltage horse back that changes and cuts off the power supply.
2, using this device to carry out the electromagnetic damping braking also is a progressive formation.The dutycycle of his self power generation process can be set at from 0 to 100%, and braking force progressively changes, and can put gently and stop, and it is dead also can once to stop, and hommization more, scientific is therefore safer, more comfortable, more energy-conservation.
3, do not change the oad and the structure of original electric two-wheel vehicle brake lever, convenient production.
4, reduced the frequency of utilization and the working strength of original mechanical braking, safety, reliability have improved.
5, established practical basis for the energy recovery of high-power, high-speed elec. vehicle.
6, under the normal circumstances, this braking principle has reduced the braking impulsive force, and to wheel hub motor, particularly gear, power-transfer clutch and the bearing with the high speed wheel hub motor of gear all has protective effect.
Description of drawings
Fig. 1 is existing mechanical brake lever principle of work scheme drawing, and wherein Fig. 1 (a) is the situation that the outage brake lever is in relaxed state, the situation when Fig. 1 (b) is brake;
Fig. 2 is existing electronics brake lever principle of work scheme drawing, and wherein Fig. 2 (a) is the situation that the outage brake lever is in relaxed state, the situation when Fig. 2 (b) is brake;
Fig. 3 is this usefulness new type of digital brake handle device principle of work scheme drawing, and wherein Fig. 2 (a) is the situation that the outage brake lever is in relaxed state, the situation when Fig. 2 (b) is brake;
Fig. 4 assembles scheme drawing to embodiment for adopting electric two-wheel vehicle parking brake of the present utility model;
Fig. 5 assembles scheme drawing for the pedal brake system embodiment that adopts electro-tricycle of the present utility model, four-wheeled;
The specific embodiment
The utility model design-calculated electric vehicle electromagnetic damping brake equipment reaches embodiment in conjunction with the accompanying drawings and is described in detail as follows:
Device of the present utility model mainly comprises: be arranged on the brake member in the brake system, two magnetic sheet and linear hall element, linear hall element is fixed in the brake system, brake member moves with brake, wherein, first magnetic sheet is fixed on a side of linear hall element and with linear hall element one little gap is arranged, and second magnetic sheet is fixed on the brake member by the linear hall element opposite side; The N utmost point of this first magnetic sheet and the S of second magnetic sheet are extremely staggered relatively, and this linear hall element is between two magnetic sheets, and the signal of this linear hall element is drawn lead (5V power lead, signal wire (SW) and ground wire) and is connected on the controller of battery-driven car.
Principle of work of the present utility model is as shown in Figure 3: magnetic sheet 331 also has a little gap (as 0.5mm-1mm) with linear hall-effect device 32 relative fixed, and magnetic sheet 332 is fixed on the end face of brake member (among the figure for stopping bar) 31; The signal of linear hall-effect device 32 is drawn lead 321 and is linked to each other with controller; Linear hall-effect device 32 is arranged in the magnetic field that two magnetic sheets 331,332 form.When the bar 31 of stopping is not subjected to brake-pressure (when whole brake lever is in slack position), magnetic sheet 332 and linear hall element also have little gap (as be about 0.5mm-1mm, obtain by the position of adjusting the fixed linear Hall element).At this moment, the signal voltage of linear hall-effect device is 5V in theory, in fact greatly about about 4.2V, shown in Fig. 3 (a).The bicyclist applies the handbrake gently, and the bar of stopping moves right, and magnetic sheet 2 also and then moves right; At this moment, the signal output voltage of Hall element just progressively progressively descends from 4.2V, moves on to the end of stroke, and shown in Fig. 1 (b), the signal output voltage of linear hall-effect device reduces to 0, in fact approximately drops to about 1.2V.Controller receives from the digital signal between the 4.2V-1.2V, will export corresponding dutycycle, makes electric power generation, produces electromagnetic damping, realizes the purpose of drag.
Adopt electric two-wheel vehicle parking brake of the present utility model as shown in Figure 3 the structure of embodiment, the present embodiment device is installed in former electric two-wheel vehicle parking brake in the cavity of pedestal 401, wherein, magnetic sheet 431 is all fixed on the fixed support 403 that links to each other with pedestal with linear hall-effect device 42, the little gap of 0.5mm-1mm is arranged between the two, and (gap is too for a short time to be not easy to install, too big magnetic force can weaken), magnetic sheet 432 is fixed on the end face of the bar 41 of stopping, and the S utmost point (or N utmost point) of the N utmost point of magnetic sheet 431 (or S utmost point) and magnetic sheet 432 is staggered relatively; Stop bar 41 and brake handle 402 interlocks, linear hall-effect device 42 is arranged in the magnetic field that two magnetic sheets 431,432 form.When brake lever was in slack position, the linear hall-effect device 42 and the bar 41 of stopping also had the little gap of a 0.5mm-1mm.The signal pig-tail wire of linear hall-effect device 32 links to each other with the controller of electric two-wheel vehicle by the signal wire socket 404 of brake lever.
Ride the people when needs brake, an as long as brake handle 402 of pinching among Fig. 3, make its brake handle solid line position from figure pinch dotted line position, at this moment brake lever will be removed the pressure of the bar of stopping, and the bar of stopping moves right under the effect of another spring force, drives magnetic sheet together away from linear hall element, producing the hall output voltage signal changes, controller provides a generating dutycycle immediately, and the motor rotating generating produces electromagnetic damping, reaches the purpose of braking.
The model of the adoptable linear hall-effect device of present embodiment is the product of ZH3503 or other model.
The adoptable magnetic sheet of present embodiment is Nd-Fe-B permanent magnetic magnetic links or other permanent magnetism steel disc.。
The structure of the electro-tricycle of employing the utility model device, the pedal brake system embodiment of four-wheeled as shown in Figure 5, wherein, the plate 51 of stopping is installed on the connecting rod 502 of the service brake pedal 501 of electro-tricycle, four-wheeled, fix a magnetic sheet 532 in a side of the plate 51 of stopping, car body 503 at plate 51 adjacents of stopping is installed an adapter plate 504, another magnetic sheet 531 and linear hall-effect device 52 are installed on adapter plate, and linear hall-effect device 52 is between two magnetic sheets, the signal of linear hall-effect device 52 is drawn lead and is linked to each other with the controller of electro-tricycle, four-wheeled.When the service brake pedal was in slack position, linear hall-effect device 52 and two magnetic sheets all had the little gap of 0.5mm-1mm.
The driver one steps on service brake pedal 501, drives magnetic sheet together away from linear hall element by connecting rod 502, produces the hall output voltage signal and changes, and controller provides a generating dutycycle immediately, and the motor rotating generating produces electromagnetic damping, reaches the purpose of braking.
The model of the adoptable linear hall-effect device of present embodiment is the product of OH3503 or other model.
The adoptable magnetic sheet of present embodiment is Nd-Fe-B permanent magnetic magnetic links or other permanent magnetism steel disc.
Claims (4)
1, a kind of electric vehicle electromagnetic damping brake equipment, mainly comprise: be arranged on brake member, magnetic sheet and linear hall element in the brake system, linear hall element is fixed in the brake system, brake member moves with brake, it is characterized in that, comprise two magnetic sheets, first magnetic sheet is fixed on a side of linear hall element and with linear hall element one little gap is arranged, and second magnetic sheet is fixed on the brake member by the linear hall element opposite side; The N utmost point of this first magnetic sheet and the S of second magnetic sheet are extremely staggered relatively, and this linear hall element is between two magnetic sheets, and the signal of this linear hall element is drawn lead and is connected on the controller of battery-driven car.
2, device as claimed in claim 1 is characterized in that, the little gap of first magnetic sheet and linear hall element is 0.5mm-1mm.
3, device as claimed in claim 1 is characterized in that, when brake member was not subjected to brake-pressure, second magnetic sheet and linear hall element had the gap of a 0.5mm-1mm.
4, device as claimed in claim 1 is characterized in that, described brake member is the bar or the plate of stopping stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720190092XU CN201120853Y (en) | 2007-11-09 | 2007-11-09 | Electromagnetic damping brake device for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720190092XU CN201120853Y (en) | 2007-11-09 | 2007-11-09 | Electromagnetic damping brake device for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201120853Y true CN201120853Y (en) | 2008-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720190092XU Expired - Fee Related CN201120853Y (en) | 2007-11-09 | 2007-11-09 | Electromagnetic damping brake device for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201120853Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017167300A1 (en) * | 2016-04-01 | 2017-10-05 | 纳恩博（北京）科技有限公司 | Control method, mobile apparatus, brake lever device and braking device |
-
2007
- 2007-11-09 CN CNU200720190092XU patent/CN201120853Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017167300A1 (en) * | 2016-04-01 | 2017-10-05 | 纳恩博（北京）科技有限公司 | Control method, mobile apparatus, brake lever device and braking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20111109 |