CN1487662A - Commutating speed regulator without Hall sensor for DC brush-less motor in electric vehicle - Google Patents
Commutating speed regulator without Hall sensor for DC brush-less motor in electric vehicle Download PDFInfo
- Publication number
- CN1487662A CN1487662A CNA031439489A CN03143948A CN1487662A CN 1487662 A CN1487662 A CN 1487662A CN A031439489 A CNA031439489 A CN A031439489A CN 03143948 A CN03143948 A CN 03143948A CN 1487662 A CN1487662 A CN 1487662A
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- Prior art keywords
- brush
- electric vehicle
- less motor
- motor
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Abstract
The present invention discloses commutating speed regulator without Hall sensor for DC brush-less motor in electric vehicle, and belongs to the field of intelligent control technology with monochip computer. The main feature is that the monochip computer is used to detect the back-EMF of the stator winding in the motor as the position signal of rotor magnetic steel, and the control logic switching circuit is then used to control commutation and speed regulation of the DC brush-less motor. Without Hall element as the position sensor for DC brush-less motor, the present invention has lower cost and more reasonable structure. The present invention may be used widely in commutating and speed regulating for DC brush-less motor in electric vehicle.
Description
Technical field
Patent of the present invention belongs to the single-chip microcomputer field of intelligent control technology
Background technology
Patent application of the present invention a few days ago, the electronic commutating device of electric vehicle DC brushless motor adopts Hall element as position transducer.Position transducer plays a part to measure rotor magnetic pole position in DC Brushless Motor, and for logic switching circuit provides correct commutation information, the position signalling that is about to the rotor magnetic steel magnetic pole converts the signal of telecommunication to, goes to control the stator winding commutation then.At present generally adopt the position transducer of Hall element, but exist the cost problem of the complex structure and the Hall element itself of direct current machine as the electric vehicle DC brushless motor.
Summary of the invention
Patent of the present invention is exactly the defective that will overcome prior art, utilize the single-chip microcomputer intelligent control technology, detect the position signalling of the reaction gesture of motor stator winding as rotor magnetic steel, and convert the signal of telecommunication to, go to control the stator winding commutation then, reach the magnetic effect of utilizing electric current with Hall element, measure the same purpose of rotor magnetic pole position, thereby remove Hall element from.
Description of drawings
Accompanying drawing is the circuit theory diagrams of patent of the present invention.
Single-chip microcomputer is PIC16C57, P among the figure
1Mouth is a delivery outlet, and 7406 is the reverse swing door circuit, is used to control the commutation of dc brushless motor; P
2Mouth is the input port, and the back electromotive force that is used to measure from the motor stator winding also is the rotor magnetic steel position sensor signal.P
0Mouthful as delivery outlet, an external D/A.LM324 is an amplifier.VF
1, VF
2, VF
3, VF
4, VF
5, VF
6Be six MOSFET power tubes, play on-off action, R
13Be current-limiting resistance.
Embodiment
Patent of the present invention detects the position signalling of the back electromotive force of motor stator winding as rotor magnetic steel by single-chip microcomputer, realizes the commutation of direct current machine.P1C16C57 single-chip microcomputer basis is from P
2The position transducer of mouth is the back electromotive force H of stator winding
1, H
2, H
3State, pass through P
1Mouth is sent the control corresponding word, respectively conducting VF
1, VF
2VF
2, VF
3VF
3, VF
4VF
4, VF
5VF
5, VF
6VF6, VF
1Power tube, the i.e. commutation of may command DC Brushless Motor.In the process of the normal operation of DC Brushless Motor, by the output voltage of control D/A, i.e. the rotating speed of the electric current of may command dc brushless motor, and then control motor.The back electromotive force of single-chip microcomputer P1C16C57 by detecting the motor stator winding calculates the rotating speed of motor as the cycle of the position signalling of rotor magnetic steel, and with given rotating ratio, take to reduce or increase P
2Output, and then reduce or strengthen the electric current of motor, thereby reduce or improve rotating speed.
Claims (1)
- A kind of commutation speed regulating device of exempting from the electric vehicle DC brushless motor of Hall element, its principal character are to utilize single-chip microcomputer to detect the position signalling the position of substitution transducer Hall element of the back electromotive force of motor stator winding as rotor magnetic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031439489A CN1487662A (en) | 2003-08-08 | 2003-08-08 | Commutating speed regulator without Hall sensor for DC brush-less motor in electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031439489A CN1487662A (en) | 2003-08-08 | 2003-08-08 | Commutating speed regulator without Hall sensor for DC brush-less motor in electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1487662A true CN1487662A (en) | 2004-04-07 |
Family
ID=34155815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031439489A Pending CN1487662A (en) | 2003-08-08 | 2003-08-08 | Commutating speed regulator without Hall sensor for DC brush-less motor in electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1487662A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553978B (en) * | 2006-07-26 | 2012-06-27 | 博泽汽车部件有限公司及两合公司,乌茨堡 | Circuit arrangement |
-
2003
- 2003-08-08 CN CNA031439489A patent/CN1487662A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553978B (en) * | 2006-07-26 | 2012-06-27 | 博泽汽车部件有限公司及两合公司,乌茨堡 | Circuit arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |