CN1770618A - Electric vehicle brushless DC motor single-chip PWM control device with sensor - Google Patents
Electric vehicle brushless DC motor single-chip PWM control device with sensor Download PDFInfo
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- CN1770618A CN1770618A CNA2005100500022A CN200510050002A CN1770618A CN 1770618 A CN1770618 A CN 1770618A CN A2005100500022 A CNA2005100500022 A CN A2005100500022A CN 200510050002 A CN200510050002 A CN 200510050002A CN 1770618 A CN1770618 A CN 1770618A
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- magnetic steel
- motor
- chip
- rotor magnetic
- pwm control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
This invention relates to one single machine PWM control device of automatic car brushless direct current motor in the single machine technique motor control field, which comprises Rotor magnetic steel position sensor and is characterized by the following: The single machine is orderly connected to the rotor magnetic steel sensor and reverse gate circuit; Through connected with reverse device and adopts PWM technique and Hall element to provide three rotors magnetic steel position sensor signals and six power tubes relationship to realize phase change control; through PWM control of single machine control mouth level signals to realize brushless motor rotation to omit the outside D/A converter. The invention realizes the brushless direct current motor phase change, rotation speed and start current control with many function expansion interfaces.
Description
Technical field the invention belongs to singlechip technology in the DC MOTOR CONTROL Application for Field.
Before background technology the invention applying date, the control of attached brushless DC motor of electric vehicle is adopted internal or external A/D converter or is adopted application-specific integrated circuit (ASIC), but has the cost height, the defective that capacitive difference and function can't be expanded.
Certainly the single-chip PWM control device that provides a kind of electric vehicle brushless DC motor with sensor of summary of the invention the invention.
The invention solves the technical scheme that its technical problem adopts: comprise the rotor magnetic steel position transducer; Single-chip microcomputer is connected with rotor magnetic steel position transducer, reverse swing door circuit respectively.By being connected with reverser, adopt the relation between PWM technology and three rotor magnetic steel position sensor signals by detecting that Hall element provides and 6 the power tube conductings, realization commutation control, by PWM control to Single-chip Controlling mouth level signal, realize the rotating speed of brshless DC motor, and save external and built-in D/A.The rotor magnetic steel position sensor signal of three band Hall elements is connected with the single-chip processor i/o input respectively, and the single-chip processor i/o output is connected with the reverser input respectively, and the reverser output is connected with the control end of 6 power tubes respectively.The state of the rotor magnetic steel position sensor signal of three band Hall elements and the relation between 6 power tube conductings are left among the EPROM of single-chip microcomputer with form.Whether single-chip microcomputer is controlled the power tube conducting by the output control word by detection rotor magnet steel position sensor signal.
The beneficial effect of the invention is: the invention realizes the control to all kinds of brshless DC motors, and leave a plurality of interfaces for function expansion, overcome the defective that external or built-in A/D converter, application-specific integrated circuit (ASIC) controller cost height, poor compatibility, function can't be expanded.Be widely used in the control of commutation, rotating speed and starting current of the brshless DC motor of all kinds of electric motor car band Hall elements.
Appended drawings 1 is the electrical schematic diagram of the invention.
Embodiment is consulted Fig. 1.The invention single-chip microcomputer adopts U.S. MICROCHIP company 8-bit microcontroller, and present embodiment adopts PIC16C57.Also visual expanded function adopts PIC16C67.Delivery outlet comprises that I/O (1), I/O (2), I/O (3), (4), I/O (5), I/O (6) are connected with the input of 7406 reverse swing door circuit respectively.7406 output respectively with six MOSFET power tube VF
1, VF
3, VF
5VF
2, VF
4, VF
6Control end be connected; Delivery outlet I/O (10) is connected by the input of resistance with discharge circuit LM324, and the input of discharge circuit LM324 is by capacitance-resistance device ground connection.Input I/O (7), I/O (8), I/O (9) respectively with three the band Hall elements rotor magnetic steel position sensor signal H
1, H
2, H
3Be connected.The invention realizes the rotating speed control of brshless DC motor by output level being carried out PWM control.The described PMW of the invention is the pulse width modulation controlled technology, is the turn-on and turn-off of utilizing semiconductor switch device, and direct voltage is become the potential pulse row, and the width or the cycle of control potential pulse are to reach a kind of technology of transformation or frequency conversion purpose.In the process of the normal operation of brshless DC motor, single-chip microcomputer calculates rotating speed of motor by the cycle from the rotor-position sensor signal, and it with given rotating speed relatively, as be higher than given rotating speed, then reduce output numerical value, reduce the electric current of motor, to reach the purpose that reduces its rotating speed.Otherwise, if the rotating speed that records is lower than given rotating speed, then increase output numerical value, and then the electric current of expanded motor, thereby its rotating speed improved.
Claims (3)
1, a kind of single-chip PWM control device of electric vehicle brushless DC motor with sensor (2) comprises the rotor magnetic steel position transducer; It is characterized in that single-chip microcomputer is connected with rotor magnetic steel position transducer, reverse swing door circuit respectively; By being connected with reverser, adopt the relation between PWM technology and three rotor magnetic steel position sensor signals by detecting that Hall element provides and 6 the power tube conductings, realization commutation control, by PWM control to Single-chip Controlling mouth level signal, realize the rotating speed of brshless DC motor, and save external and built-in D/A.
2, the single-chip PWM control device of the described electric vehicle brushless DC motor with sensor of claim 1 (2), the rotor magnetic steel position sensor signal that it is characterized in that three band Hall elements is connected with the single-chip processor i/o input respectively, the single-chip processor i/o output is connected with the reverser input respectively, and the reverser output is connected with the control end of 6 power tubes respectively.
3, the single-chip PWM control device of the described electric vehicle brushless DC motor with sensor of claim 1 (2) is characterized in that the state of the rotor magnetic steel position sensor signal of three band Hall elements and the relation between 6 power tube conductings are left among the EPROM of single-chip microcomputer with form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100500022A CN1770618A (en) | 2005-06-09 | 2005-06-09 | Electric vehicle brushless DC motor single-chip PWM control device with sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100500022A CN1770618A (en) | 2005-06-09 | 2005-06-09 | Electric vehicle brushless DC motor single-chip PWM control device with sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1770618A true CN1770618A (en) | 2006-05-10 |
Family
ID=36751680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100500022A Pending CN1770618A (en) | 2005-06-09 | 2005-06-09 | Electric vehicle brushless DC motor single-chip PWM control device with sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1770618A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730216A (en) * | 2016-01-12 | 2016-07-06 | 沈阳工业大学 | Integrated universal wheel and control method thereof |
| CN107658850A (en) * | 2017-11-03 | 2018-02-02 | 核工业理化工程研究院 | The raising speed protection device and speed control method of high rotating speed DC brushless motor |
| CN114083996A (en) * | 2021-11-24 | 2022-02-25 | 江西裕丰智能农业科技有限公司 | Driving module, electric vehicle, driving method and driving equipment |
-
2005
- 2005-06-09 CN CNA2005100500022A patent/CN1770618A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730216A (en) * | 2016-01-12 | 2016-07-06 | 沈阳工业大学 | Integrated universal wheel and control method thereof |
| CN107658850A (en) * | 2017-11-03 | 2018-02-02 | 核工业理化工程研究院 | The raising speed protection device and speed control method of high rotating speed DC brushless motor |
| CN114083996A (en) * | 2021-11-24 | 2022-02-25 | 江西裕丰智能农业科技有限公司 | Driving module, electric vehicle, driving method and driving equipment |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |