CN103607141A - Electromechanical-combined-braking brushless DC motor braking device and method - Google Patents
Electromechanical-combined-braking brushless DC motor braking device and method Download PDFInfo
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- CN103607141A CN103607141A CN201310526454.8A CN201310526454A CN103607141A CN 103607141 A CN103607141 A CN 103607141A CN 201310526454 A CN201310526454 A CN 201310526454A CN 103607141 A CN103607141 A CN 103607141A
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Abstract
The invention discloses an electromechanical-combined-braking brushless DC motor braking device and method. The device includes a one-chip microcomputer, a crystal-oscillator circuit, a braking rotating handle, a driving circuit, a sensor, a three-phase electrical bridge, a DC power supply, a power-supply circuit, a brake cable and an asbestos-free brake block. The braking rotating handle leads out two wires and one is the brake cable connected with the asbestos-free brake block and the other is a contact-sensor signal wire connected with the one-chip microcomputer. The braking method is that a user rotates the braking rotating handle so that the brake cable drives the asbestos-free brake block to carry out mechanical braking on the brushless DC motor and when the braking rotating handle rotates to a specific angle continuously, a contact sensor sends out a signal to the one-chip microcomputer so that the one-chip microcomputer switches on a corresponding thyristor to realize high-hardness electrical braking. The electromechanical-combined braking device and method are capable of realizing smooth braking with better braking effect, higher safety factor and reduced mechanical braking abrasion.
Description
Technical field
The invention belongs to a kind of electronic-controlled installation and method, be specifically related to a kind of brushless dc machine braking device and method of mechanical electric composite braking.
Background technology
The brushless dc machine braking device of a kind of mechanical electric composite braking that mechanical and electronic combined control device is realized and method are that mechanical braking and electric braking are incorporated on braking handle, preferential mechanical braking.Brshless DC motor is widely used at electric automobile and electric bicycle market, and conventional electric motor car is all equipped with electrical brake and mechanical brake, and electrical brake hardness is large, and user is easily unbalance, and mechanical brake is easy to wear, causes brake failure.Therefore, the brushless dc machine braking device of the electric composite braking that designs a mechanism and method can overcome electric braking hardness and cause greatly the unbalance shortcoming of user, can guarantee again the fail safe of mechanical brake, have great importance.
Summary of the invention
The present invention is intended to overcome the self shortcoming of traditional brshless DC motor electric braking and mechanical braking, and both advantages are comprehensive, brushless dc machine braking device and the method for a kind of mechanical electric composite braking providing.
In order to achieve the above object, the brushless dc machine braking device of mechanical electric composite braking of the present invention, this electric brake arrangement is provided with: single-chip microcomputer, crystal oscillating circuit, braking handle, drive circuit, transducer, three phase bridge, DC power supply, power circuit, brake cable, without the asbestos piece of stopping; Braking handle is drawn two lines, and one is connected with the piece of stopping without asbestos for brake cable, and brake cable drive is carried out mechanical braking without the asbestos piece of stopping to brshless DC motor, and another root is contact pickup holding wire connection single-chip microcomputer; DC power supply is given respectively single-chip microcomputer and drive circuitry by power circuit; The output of crystal oscillating circuit and transducer is connected respectively the input of single-chip microcomputer; The output of single-chip microcomputer carries out electricity by drive circuit, three phase bridge to brshless DC motor successively and stops.
The braking method of the brushless dc machine braking device of mechanical electric composite braking, comprises the following steps:
(1) brshless DC motor normal operation;
(2) user's rolling brake handle;
(3) braking handle drives brake cable, by the piece of stopping without asbestos, brshless DC motor is carried out to mechanical braking;
(4) transducer detects the angle that braking handle turns over, when braking handle turns over 60 °;
(5) to open brachium pontis under three phase bridge be duty ratio 1 to single-chip microcomputer, realizes high rigidity electric braking.
Advantage of the present invention and beneficial effect be mainly:
Adopt electric brake arrangement of the present invention and method combine mechanical braking and electric braking separately a little, can realize level and smooth braking, braking effect is better, coefficient of safety is higher, reduces mechanical braking wearing and tearing, significant.
Accompanying drawing explanation
Fig. 1: brshless DC motor fundamental diagram of the present invention;
Fig. 2: the present invention brakes handle work schematic diagram;
Fig. 3: apparatus of the present invention frame principle figure;
Fig. 4: electric braking algorithm flow chart of the present invention;
Fig. 5: single-chip microcomputer pin schematic drawing of the present invention;
In figure: Controller. handle, Sensor. transducer, A. support, B. electric braking region, C. sensor signal point, D. mechanical braking region.
Embodiment
Below in conjunction with drawings and Examples, brushless dc machine braking device and the method for a kind of mechanical electric composite braking of the present invention are described in further detail.
As shown in Figure 3, the device that the present invention uses is: brshless DC motor, single-chip microcomputer, the design selects ACT89C51, crystal oscillating circuit, braking handle, inside have contact pickup, three phase bridge (6 pipe), 48V DC power supply, drive circuit, power circuit, it is characterized in that by 48V direct voltage source dividing potential drop be 5V and 15V, brake cable, without the asbestos piece of stopping.Braking handle is drawn two lines, one is connected with the piece of stopping without asbestos for brake cable, one for contact pickup holding wire connects single-chip microcomputer, crystal oscillating circuit is connected single-chip microcomputer with power circuit, and single-chip microcomputer judgement contact pickup signal controlling three phase bridge thyristor conducting shutoff realizes electricity and stops.
A kind of braking method that the present invention adopts: user's rolling brake handle, brake cable drives without the asbestos piece of stopping carries out mechanical braking to brshless DC motor, when continuing to turn to certain angle, contact pickup sends signal to single-chip microcomputer, and single-chip microcomputer is opened thyristor VT2, VT4, VT6(duty ratio 100%) realize high rigidity electricity and stop.
In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, narrate brshless DC motor mechanical electric composite braking method of the present invention, comprise the following steps:
(1) brshless DC motor normal operation;
(2) user's rolling brake handle;
(3) braking handle rotational angle is in 0 °～60 °;
(4) handle connects brake cable by the piece mechanical braking of stopping without asbestos;
(5) be rotated further;
(6) sensor element on handle contacts with the sensor element on support;
(7) single-chip microcomputer P3.4 pin puts 1;
(8) Single-chip Controlling metal-oxide-semiconductor VT4, VT6, VT2 conducting, duty ratio 100%;
(9) realize electric braking;
(10) brshless DC motor stops operating at once.
Claims (2)
1. the brushless dc machine braking device of a mechanical electric composite braking, it is characterized in that, this device is provided with: single-chip microcomputer, crystal oscillating circuit, braking handle, drive circuit, transducer, three phase bridge, DC power supply, power circuit, brake cable, without the asbestos piece of stopping; Braking handle is drawn two lines, and one is connected with the piece of stopping without asbestos for brake cable, and brake cable drive is carried out mechanical braking without the asbestos piece of stopping to brshless DC motor, and another root is contact pickup holding wire connection single-chip microcomputer; DC power supply is given respectively single-chip microcomputer and drive circuitry by power circuit; The output of crystal oscillating circuit and transducer is connected respectively the input of single-chip microcomputer; The output of single-chip microcomputer carries out electricity by drive circuit, three phase bridge to brshless DC motor successively and stops.
2. a braking method for the brushless dc machine braking device of mechanical electric composite braking as claimed in claim 1, is characterized in that, comprises the following steps:
(1) brshless DC motor normal operation;
(2) user's rolling brake handle;
(3) braking handle drives brake cable, by the piece of stopping without asbestos, brshless DC motor is carried out to mechanical braking;
(4) transducer detects the angle that braking handle turns over, when braking handle turns over 60 °;
(5) to open brachium pontis under three phase bridge be duty ratio 1 to single-chip microcomputer, realizes high rigidity electric braking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310526454.8A CN103607141B (en) | 2013-10-30 | 2013-10-30 | A kind of brushless dc machine braking device of mechanical electric composite braking and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310526454.8A CN103607141B (en) | 2013-10-30 | 2013-10-30 | A kind of brushless dc machine braking device of mechanical electric composite braking and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103607141A true CN103607141A (en) | 2014-02-26 |
| CN103607141B CN103607141B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310526454.8A Active CN103607141B (en) | 2013-10-30 | 2013-10-30 | A kind of brushless dc machine braking device of mechanical electric composite braking and method |
Country Status (1)
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3774095A (en) * | 1972-09-20 | 1973-11-20 | Westinghouse Air Brake Co | System for blending regenerative and dynamic and friction braking |
| JP2000134715A (en) * | 1998-10-23 | 2000-05-12 | Akebono Brake Res & Dev Center Ltd | Braking device for vehicle |
| CN101134544A (en) * | 2006-08-31 | 2008-03-05 | 东芝电梯株式会社 | Elevator control apparatus |
| CN201941603U (en) * | 2011-02-17 | 2011-08-24 | 赵京磊 | Brake system of electric vehicle |
-
2013
- 2013-10-30 CN CN201310526454.8A patent/CN103607141B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3774095A (en) * | 1972-09-20 | 1973-11-20 | Westinghouse Air Brake Co | System for blending regenerative and dynamic and friction braking |
| JP2000134715A (en) * | 1998-10-23 | 2000-05-12 | Akebono Brake Res & Dev Center Ltd | Braking device for vehicle |
| CN101134544A (en) * | 2006-08-31 | 2008-03-05 | 东芝电梯株式会社 | Elevator control apparatus |
| CN201941603U (en) * | 2011-02-17 | 2011-08-24 | 赵京磊 | Brake system of electric vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 魏海峰: "轮毂电机驱动电动车复合制动控制实验研究", 《江苏科技大学学报(自然科学版)》 * |
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| CN103607141B (en) | 2015-11-25 |
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Effective date of registration: 20191224 Address after: 221724 No. 2-80, Shizhai Industrial Park, Fengxian County, Xuzhou City, Jiangsu Province Patentee after: Xuzhou Bohu Electric Vehicle Technology Co., Ltd Address before: 212003, No. 2, Mengxi Road, Zhenjiang, Jiangsu Patentee before: Jiangsu University of Science and Technology |
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