CN103607141B - A kind of brushless dc machine braking device of mechanical electric composite braking and method - Google Patents
A kind of brushless dc machine braking device of mechanical electric composite braking and method Download PDFInfo
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- CN103607141B CN103607141B CN201310526454.8A CN201310526454A CN103607141B CN 103607141 B CN103607141 B CN 103607141B CN 201310526454 A CN201310526454 A CN 201310526454A CN 103607141 B CN103607141 B CN 103607141B
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Abstract
The invention discloses a kind of brushless dc machine braking device and method of mechanical electric composite braking.Device composition has single-chip microcomputer, crystal oscillating circuit, braking handle, drive circuit, transducer, three phase bridge, DC power supply, power circuit, brake cable, block of stopping without asbestos.Braking handle draws two lines, and one is connected with block of stopping without asbestos for brake cable, and one is contact pickup holding wire connection single-chip microcomputer.Described braking method is, user's rolling brake handle, brake cable drives carries out mechanical braking to brshless DC motor, when continuing to turn to certain angle without asbestos block of stopping, contact pickup sends signal to single-chip microcomputer, and single-chip microcomputer is opened respective thyristor and realized high rigidity electricity and stop.Adopt mechanical electric composite braking device and method of the present invention can realize level and smooth braking, braking effect is better, and coefficient of safety is higher, reduces mechanical braking wearing and tearing.
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 realizes and method 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 the shortcoming that electric braking hardness causes greatly user unbalance, can ensure again the fail safe of mechanical brake, have great importance.
Summary of the invention
The present invention is intended to the self shortcoming overcoming conventional brushless DC motor electric braking and mechanical braking, by comprehensive for both advantages, and the brushless dc machine braking device of a kind of mechanical electric composite braking provided and method.
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, block of stopping without asbestos; Braking handle draws two lines, and one is connected with block of stopping without asbestos for brake cable, and brake cable drive carries out mechanical braking without asbestos block of stopping to brshless DC motor, and another root is contact pickup holding wire connection single-chip microcomputer; DC power supply gives single-chip microcomputer and drive circuitry respectively by power circuit; Crystal oscillating circuit is connected the input of single-chip microcomputer respectively with the output of transducer; 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 normally works;
(2) user's rolling brake handle;
(3) braking handle drives brake cable to carry out mechanical braking by block of stopping without asbestos to brshless DC motor;
(4) transducer detects the angle that braking handle turns over, when braking handle turns over 60 °;
(5) single-chip microcomputer opens brachium pontis and duty ratio 1 under three phase bridge, realizes high rigidity electric braking.
Advantage of the present invention and beneficial effect be mainly:
Adopt electric brake arrangement of the present invention and methods combining mechanical braking and the respective of electric braking a little can realize level and smooth braking, braking effect is better, and 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 operating 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, the brushless dc machine braking device of a kind of mechanical electric composite braking of the present invention and method 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, block of stopping without asbestos.Braking handle draws two lines, one is connected with block of stopping without asbestos for brake cable, one is contact pickup holding wire connection single-chip microcomputer, and crystal oscillating circuit is connected single-chip microcomputer with power circuit, and single-chip microcomputer judges that the shutoff of contact pickup signal controlling three phase bridge turn on thyristors realizes electricity and stops.
A kind of braking method that the present invention adopts: user's rolling brake handle, brake cable drives carries out mechanical braking without asbestos block of stopping to brshless DC motor, when continuing to turn to certain angle, contact pickup sends signal to single-chip microcomputer, and thyristor VT2, VT4, VT6(duty ratio 100% opened by single-chip microcomputer) realize high rigidity electricity and stop.
Composition graphs 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5 describe brshless DC motor mechanical electric composite braking method of the present invention, comprise the following steps:
(1) brshless DC motor normally works;
(2) user's rolling brake handle;
(3) handle rotational angle is braked in 0 ° ~ 60 °;
(4) handle connects brake cable by block 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) electric braking is realized;
(10) brshless DC motor stops operating at once.
Claims (1)
1. a braking method for the brushless dc machine braking device of mechanical electric composite braking, this braking method based on device be provided with: single-chip microcomputer, crystal oscillating circuit, braking handle, drive circuit, contact pickup, three phase bridge, DC power supply, power circuit, brake cable, block of stopping without asbestos; Wherein brake handle and draw two lines, one be the brake cable be connected with block of stopping without asbestos, and brake cable drive carries out mechanical braking without asbestos block of stopping to brshless DC motor, and another root is the contact pickup holding wire of connection single-chip microcomputer; DC power supply gives single-chip microcomputer and drive circuitry respectively by power circuit; Crystal oscillating circuit is connected the input of single-chip microcomputer respectively with the output of contact pickup; The output of single-chip microcomputer carries out electricity by drive circuit, three phase bridge to brshless DC motor successively and stops; It is characterized in that, described braking method comprises the following steps:
(1) brshless DC motor normally works;
(2) user's rolling brake handle;
(3) braking handle drives brake cable to carry out mechanical braking by block of stopping without asbestos to brshless DC motor;
(4) contact pickup detects the angle that braking handle turns over, when braking handle turns over 60 °;
(5) brachium pontis under three phase bridge opened by single-chip microcomputer, and the duty ratio namely descending the switch of brachium pontis is 1, 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 CN103607141A (en) | 2014-02-26 |
| CN103607141B true 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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| CN (1) | CN103607141B (en) |
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 |
|---|
| 轮毂电机驱动电动车复合制动控制实验研究;魏海峰;《江苏科技大学学报(自然科学版)》;20110430;第25卷(第2期);第154-157页 * |
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| CN103607141A (en) | 2014-02-26 |
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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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