CN106208540A - A kind of magnetic coding permagnetic synchronous motor driven for electric automobile - Google Patents
A kind of magnetic coding permagnetic synchronous motor driven for electric automobile Download PDFInfo
- Publication number
- CN106208540A CN106208540A CN201610783698.8A CN201610783698A CN106208540A CN 106208540 A CN106208540 A CN 106208540A CN 201610783698 A CN201610783698 A CN 201610783698A CN 106208540 A CN106208540 A CN 106208540A
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- motor
- magnetic
- electric automobile
- permagnetic synchronous
- hall element
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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
The invention discloses a kind of magnetic coding permagnetic synchronous motor driven for electric automobile, it is characterised in that the sampling to motor rotor position uses magnetic coding chip；Described coding chip includes magnetic coder, and described magnetic coder is parallel with the circle magnet steel face, end of motor shaft, is separated with 0.8mm；Including the even number Hall element embedded in chip, described Hall element arranges according to even circumferential；A diameter of 2.2 2.3mm of described circumference.It is low that the present invention solves electric automobile permagnetic synchronous motor Hall collection rotor seat precision, and low speed torque is little, the problem of starting shake.Substantially increase the comfortableness of synchronous permanent-magnet motor electric motor of automobile, acceleration and reliability.
Description
Technical field
The present invention relates to the motor of a kind of electric motor car, be specifically related to a kind of magnetic coding permanent magnetism for electric automobile driving same
Step motor.
Background technology
Electric motor car, as the widely used vehicles, uses environment different from use frequency according to it, and form is the most not
With.Its feature of the motor of multi-form is the most different.The commonly used permanent magnet DC motor of electric vehicle motor at present.So-called Permanent Magnet and Electric
Machine, refers to that motor coil uses permanent magnet excitation, does not use the mode of coil excitation.When eliminating magnetizing coil work
The electric energy consumed, improves motor electromechanical conversion efficiency, from the point of view of this electric motor car to the vehicle-mounted finite energy resource of use, can reduce row
Sail electric current, extend mileages of continuation.Electric vehicle motor divides according to the energising form of motor, can be divided into brush motor and brushless electric machine
Two big classes；Divide according to the frame for movement of motor assembly, be generally divided into " having tooth " (motor speed is high, needs to slow down through gear)
" anodontia " (Motor torque exports without any deceleration) two big classes.
Overwhelming majority electric motor car uses permagnetic synchronous motor hall position sensor to gather motor rotor position precision, should
Method precision is low, and low speed torque is little, and starting shake is big.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of and drives for electric automobile
Magnetic coding permagnetic synchronous motor, by use magnetic coder, solve problem of the prior art.
Technical scheme: for achieving the above object, the technical solution used in the present invention is: a kind of for electric automobile drive
Magnetic coding permagnetic synchronous motor, it is characterised in that the sampling to motor rotor position uses magnetic coding chip；Described coding chip
Including magnetic coder, described magnetic coder is parallel with the circle magnet steel face, end of motor shaft, is separated with 0.8mm；
Including the even number Hall element embedded in chip, described Hall element arranges according to even circumferential；Described
A diameter of 2.2-2.3mm of circumference；
Described Hall element is relative two-by-two, and two relative Hall elements are connected by differential amplifier circuit；Described
The signal of Hall element output processes through two parallel ADCs and eliminates noise by digital filter；
The rotor angular position that the controller of motor feeds back according to magnetic coder, sends motor for preventing reverse signal to motor.
Further, described Hall element number is 4 or 8.
Further, including intelligent temperature sensing unit, it is used for detecting motor temperature.
Further, described intelligent temperature sensing unit includes NTP negative temperature coefficient sensor, when resistance as little as threshold value
Time, controller collects the resistance change of temperature sensor；When being operated in 130-155 DEG C such as motor stator line bag, Intelligent temperature
Degree unit starting.
Beneficial effect: the present invention solves electric automobile permagnetic synchronous motor Hall and gathers rotor seat precision
Low, low speed torque is little, the problem of starting shake.Substantially increase the comfortableness of synchronous permanent-magnet motor electric motor of automobile, acceleration and
Reliability.
Accompanying drawing explanation
Fig. 1 is magnetic coding chip and the position view of circular magnet steel
Fig. 2 is magnetic coder installation site schematic diagram
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
It is illustrated in figure 1 a kind of magnetic coding permagnetic synchronous motor driven for electric automobile, it is characterised in that to motor
The sampling of rotor-position uses magnetic coding chip；Described coding chip includes magnetic coder, described magnetic coder and motor shaft
Circle magnet steel face, end is parallel, is separated with 0.8mm；When motor shaft rotates, it is embedded in the circular magnet steel of motor shaft head, to coding
Device chip does circumferential magnetic field scanning, and circumferential 4 sensors in coding chip, by the logic circuit of chip internal
Sampling circumferential magnetic field, circular magnet steel often rotates one week will export 1024 pulses on magnetic coding.
Including the even number Hall element embedded in chip, described Hall element arranges according to even circumferential；Described
A diameter of 2.2-2.3mm of circumference；
Described Hall element is relative two-by-two, and two relative Hall elements are connected by differential amplifier circuit；Described
The signal of Hall element output processes through two parallel ADCs and eliminates noise by digital filter；
The rotor angular position that the controller of motor feeds back according to magnetic coder, sends motor for preventing reverse signal to motor.
Further, described Hall element number is 4 or 8.
Further, including intelligent temperature sensing unit, it is used for detecting motor temperature.
Further, described intelligent temperature sensing unit includes NTP negative temperature coefficient sensor, when resistance as little as threshold value
Time, controller collects the resistance change of temperature sensor；When being operated in 130-155 DEG C such as motor stator line bag, Intelligent temperature
Degree unit starting, prevents motor temperature further up, it is ensured that motor is in properly functioning state all the time.
As in figure 2 it is shown, regular tap Hall rotates a circle at rotor, calculate according to motor number of pole-pairs, the 4 rotor meetings to pole
Three Halls produce 12 pulse signals.Hall sensing position angle has ± error of 30 °, so the motor when low speed
Have shake.Cause low speed torque little.And the motor of the present invention encodes angle position precision absolute angle when low speed due to magnetic
Metering system can the Angle Position of indication magnet immediately, its resolution reaches 0.35 °, the most often 1024 positions of circle.Can be the most defeated
Go out high pulling torque, be that motor is not shaken in low speed load or climbing
The above is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. the magnetic coding permagnetic synchronous motor driven for electric automobile, it is characterised in that motor rotor position is adopted
Sample uses magnetic coding chip；Described coding chip includes the end circle magnet steel of magnetic coder, described magnetic coder and motor shaft
Face is parallel, is separated with 0.8mm；
Including the even number Hall element embedded in chip, described Hall element arranges according to even circumferential；Described circumference
A diameter of 2.2-2.3mm；
Described Hall element is relative two-by-two, and two relative Hall elements are connected by differential amplifier circuit；Described Hall
The signal of sensor output processes through two parallel ADCs and eliminates noise by digital filter；
The rotor angular position that the controller of motor feeds back according to magnetic coder, sends motor for preventing reverse signal to motor.
A kind of magnetic coding permagnetic synchronous motor driven for electric automobile, it is characterised in that described
Hall element number is 4 or 8.
A kind of magnetic coding permagnetic synchronous motor driven for electric automobile, it is characterised in that include
Intelligent temperature sensing unit, is used for detecting motor temperature.
A kind of magnetic coding permagnetic synchronous motor driven for electric automobile, it is characterised in that described
Intelligent temperature sensing unit includes NTP negative temperature coefficient sensor, and when resistance as little as threshold value, controller collects temperature sensing
The resistance change of device；When being operated in 130-155 DEG C such as motor stator line bag, intelligent temperature unit starting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783698.8A CN106208540A (en) | 2016-08-31 | 2016-08-31 | A kind of magnetic coding permagnetic synchronous motor driven for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610783698.8A CN106208540A (en) | 2016-08-31 | 2016-08-31 | A kind of magnetic coding permagnetic synchronous motor driven for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106208540A true CN106208540A (en) | 2016-12-07 |
Family
ID=58086208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610783698.8A Pending CN106208540A (en) | 2016-08-31 | 2016-08-31 | A kind of magnetic coding permagnetic synchronous motor driven for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106208540A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639189A (en) * | 2018-12-31 | 2019-04-16 | 南京工程学院 | A kind of brushless dc motor servo system and its control method |
| CN110620530A (en) * | 2019-09-30 | 2019-12-27 | 浙江众邦机电科技有限公司 | Positioning control method, device, equipment and medium for stepping motor |
-
2016
- 2016-08-31 CN CN201610783698.8A patent/CN106208540A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639189A (en) * | 2018-12-31 | 2019-04-16 | 南京工程学院 | A kind of brushless dc motor servo system and its control method |
| CN110620530A (en) * | 2019-09-30 | 2019-12-27 | 浙江众邦机电科技有限公司 | Positioning control method, device, equipment and medium for stepping motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161207 |