CN103929017A - Skylight motor and rotating speed detecting method for skylight motor - Google Patents
Skylight motor and rotating speed detecting method for skylight motor Download PDFInfo
- Publication number
- CN103929017A CN103929017A CN201310511176.9A CN201310511176A CN103929017A CN 103929017 A CN103929017 A CN 103929017A CN 201310511176 A CN201310511176 A CN 201310511176A CN 103929017 A CN103929017 A CN 103929017A
- Authority
- CN
- China
- Prior art keywords
- rotor
- skylight
- motor
- skylight motor
- rotating speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 6
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention provides a skylight motor which comprises a rotor. Two hall sensors are mounted nearby the rotor, the two Hall sensors are separated for a distance, and phase differences exist between output waveforms. The invention further provides a rotating speed detecting method for the skylight motor, and the rotating speed of the skylight motor is calculated by receiving pulse waveforms output by the two Hall sensors according to the pulses of the two sets of waveforms. Compared with an existing skylight motor, the sensitivity of response and the resolution ratio are improved greatly.
Description
Technical field
The invention belongs to auto parts machinery engineering field, relate in particular to a kind of skylight motor and skylight motor speed detection method.
Background technology
It is to rely near a motor-spin-coil place Hall element of installation to realize that traditional skylight DC motor speed detects, and in the time of the close Hall element of the N of rotor utmost point rotation, this transducer can be exported a high level pulse (or low level).The speed of motor rotation is slower, and this pulse is just wider, otherwise just narrower, thereby and anti-pinch ECU utilizes this to put to judge whether skylight clips to people or thing starts pinch resistant functionality just.But owing at least will just drawing through a level pulse cycle variation of rotating speed, therefore existing rotating speed detects sensitivity and resolution are all lower, by the time detect that when rotating speed reduces, the part being clipped to is experienced intensity discomfort already, therefore experience degree is lower.
Summary of the invention
The present invention adopts a kind of new scheme to be improved for this problem.We install two Hall chips in the place near motor-spin-coil, the segment distance of being separated by position, and such two chips have a phase difference in the time of output level pulse, preferably differ 90 degree electrical degrees.Program just can just can judge by detecting two electrical level rising the variation of rotating speed along the time difference of (or trailing edge) like this, and sensitivity and the resolution of software are promoted greatly.
The technical solution used in the present invention is as follows:
A kind of skylight motor, comprises rotor and is installed near the Hall element of rotor, the signal of Hall element is exported by lead-in wire, it is characterized in that, two Hall elements have been installed near rotor, and two Hall elements segment distance of being separated by, so that output waveform has phase difference.
Preferably, within one week, be 360 degree by rotor, the installation site of two Hall elements differs 45 degree.
The present invention also provides a kind of skylight motor speed detection method, and described skylight motor is attached with Hall element at rotor, and the signal of Hall element is exported by lead-in wire, and described skylight motor speed detection method comprises the following steps:
A) receive the impulse waveform that Hall element is exported,
B) calculate the rotating speed of skylight motor according to the width gauge of pulse,
It is characterized in that, described skylight motor is attached with two Hall elements at rotor, two Hall elements segment distance of being separated by, make two group pulse waveforms of output have phase difference, therefore step b) is calculated the step of rotating speed and is comprised the variation that judges rotating speed by detecting the rising edge of two respective pulses in two group pulse waveforms or the time difference of trailing edge.
Preferably, in the motor of described skylight, within one week, be 360 degree by rotor, the installation site of two Hall elements differs 45 degree.
Beneficial effect: use after two Hall schemes, more accurate to the judgement of anti-pinch, react also rapider.And owing to having adopted two Hall schemes, the location of skylight motion is also more accurate.Meanwhile, owing to increasing Liao Yi road hall signal, objectively realized the redundancy of signal, in the time that a certain road Hall breaks down, system still can be worked, and is unlikely to lose efficacy.
Brief description of the drawings
Fig. 1 is the structural representation of skylight of the present invention motor, shows the installation site of two Hall elements;
Fig. 2 is the output waveform figure adopting after of the present invention pair of Hall scheme.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing.
Referring to Fig. 1, show the structural representation of skylight of the present invention motor.As seen from the figure, at peritrochanteric, two Hall elements 1 and 2 are installed, separated by a distance between transducer 1 and transducer 2, between the waveform that each transducer is exported, there is phase difference.
Referring to Fig. 2, the Range-based between the distance of the phase difference between two group pulse waveforms and two transducers.Preferably, within one week, be 360 degree by rotor, the installation site of two Hall elements differs 45 degree, and therefore two groups of waveforms differ half pulse.Thus, the distance between corresponding rising edge or the trailing edge of the respective pulses of two groups of waveforms will shorten dramatically, and the sensitivity and the resolution that test the speed are greatly improved.
While detecting rotating speed, according to the spacing of the rising edge of waveform corresponding pulses or trailing edge, in conjunction with the set point often circling, can calculate fast rotating speed.In the function of skylight anti-pinch, in the time that spacing is elongated, illustrate that rotating speed is slack-off.In the situation that a Hall element is installed, need within one week, to obtain the slack-off information of rotating speed, thereby the strength that now may clamp becomes the quite large substantial damage that caused.Adopt skylight of the present invention motor and rotating speed detection method, can obtain rotation speed change information by the spacing of two rising edges of two adjacent groups or trailing edge relatively, fast octuple in sensitivity, the reaction time shortens dramatically naturally.
By reference to the accompanying drawings embodiments of the present invention are described in detail above, but the invention is not restricted to above-mentioned execution mode, in the ken possessing at affiliated technical field those of ordinary skill, can also under the prerequisite that does not depart from aim of the present invention, make a variety of changes.
Claims (4)
1. a skylight motor, comprises rotor and is installed near the Hall element of rotor, the signal of Hall element is exported by lead-in wire, it is characterized in that, two Hall elements have been installed near rotor, and two Hall elements segment distance of being separated by, so that output waveform has phase difference.
2. skylight as claimed in claim 1 motor, is characterized in that, within one week, is 360 degree by rotor, and the installation site of two Hall elements differs 45 degree.
3. a skylight motor speed detection method, described skylight motor is attached with Hall element at rotor, and the signal of Hall element is exported by lead-in wire, and described skylight motor speed detection method comprises the following steps:
A) receive the impulse waveform that Hall element is exported,
B) calculate the rotating speed of skylight motor according to the width gauge of pulse,
It is characterized in that, described skylight motor is attached with two Hall elements at rotor, two Hall elements segment distance of being separated by, make two group pulse waveforms of output have phase difference, therefore step b) is calculated the step of rotating speed and is comprised the variation that judges rotating speed by detecting the rising edge of two respective pulses in two group pulse waveforms or the time difference of trailing edge.
4. skylight as claimed in claim 3 motor speed detection method, is characterized in that, within one week, is 360 degree by rotor, and the installation site of two Hall elements differs 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511176.9A CN103929017A (en) | 2013-10-28 | 2013-10-28 | Skylight motor and rotating speed detecting method for skylight motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310511176.9A CN103929017A (en) | 2013-10-28 | 2013-10-28 | Skylight motor and rotating speed detecting method for skylight motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103929017A true CN103929017A (en) | 2014-07-16 |
Family
ID=51147131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310511176.9A Pending CN103929017A (en) | 2013-10-28 | 2013-10-28 | Skylight motor and rotating speed detecting method for skylight motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103929017A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008079452A (en) * | 2006-09-22 | 2008-04-03 | Mitsubishi Electric Corp | Rotary electric machine and motor-driven power steering system |
| CN201311429Y (en) * | 2008-12-08 | 2009-09-16 | 江阴众和电力仪表有限公司 | Revolution speed transducer |
| CN101594029A (en) * | 2009-07-01 | 2009-12-02 | 宁波双林汽车部件股份有限公司 | Dual-Hall sensor motor |
| JP2011182569A (en) * | 2010-03-02 | 2011-09-15 | Canon Inc | Inner rotor type motor |
| CN102889039A (en) * | 2012-10-15 | 2013-01-23 | 郭景华 | Anti-pinch vehicle window system and method for calibrating anti-pinch force in real time |
| CN103267869A (en) * | 2013-04-28 | 2013-08-28 | 张敏 | Double-headed high precision velocity sensor and working method |
-
2013
- 2013-10-28 CN CN201310511176.9A patent/CN103929017A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008079452A (en) * | 2006-09-22 | 2008-04-03 | Mitsubishi Electric Corp | Rotary electric machine and motor-driven power steering system |
| CN201311429Y (en) * | 2008-12-08 | 2009-09-16 | 江阴众和电力仪表有限公司 | Revolution speed transducer |
| CN101594029A (en) * | 2009-07-01 | 2009-12-02 | 宁波双林汽车部件股份有限公司 | Dual-Hall sensor motor |
| JP2011182569A (en) * | 2010-03-02 | 2011-09-15 | Canon Inc | Inner rotor type motor |
| CN102889039A (en) * | 2012-10-15 | 2013-01-23 | 郭景华 | Anti-pinch vehicle window system and method for calibrating anti-pinch force in real time |
| CN103267869A (en) * | 2013-04-28 | 2013-08-28 | 张敏 | Double-headed high precision velocity sensor and working method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100446404C (en) | Brushless DC motor driver | |
| CN204535741U (en) | Measuring equipment, variator and drive unit | |
| CN103098366A (en) | Phase-shift detection device, motor drive device, brushless motor, and phase-shift detection method | |
| US8710831B2 (en) | Rotation angle detecting device | |
| JP2013099022A5 (en) | ||
| CN105572585A (en) | System and method of electric motor fault detection | |
| WO2016091091A1 (en) | Method of diagnosing and locating malfunction of two position sensors of four-phase switched reluctance motor | |
| CN105182238A (en) | Stepping motor stalling detection device and detection method | |
| CN103592455B (en) | Electric bicycle speed digital pick-up unit and detection method | |
| WO2016091090A1 (en) | Fault diagnosis and location method for position sensor of three-phase switched reluctance motor | |
| CN105391362A (en) | DC brushless motor Hall sensor control algorithm | |
| CN104457647A (en) | Fault diagnosing and positioning method for four position sensors of four-phase switch reluctance motor | |
| EP2824825A3 (en) | Method and apparatus for determining position for a permanent magnet elevator motor | |
| CN104165649A (en) | Power-on self-detection method for brushless direct-current motor hall sensor | |
| CN105008003A (en) | Rotor position encoder for an electronically comutated electric machine having a reference encoder | |
| CN104246442A (en) | Resolver device, motor control device, and motor control method | |
| CN103475294A (en) | Fault-tolerant control algorithm for hall sensors of permanent magnet synchronous motor | |
| CN105262398A (en) | Vector control method and apparatus for permanent magnet synchronous motor based on Hall sensor | |
| CN110932616B (en) | Method and device for determining angle position of rotor of permanent magnet synchronous motor and motor | |
| CN107561306B (en) | Method for measuring rotating speed of wound-rotor motor based on rotor current | |
| CN103929017A (en) | Skylight motor and rotating speed detecting method for skylight motor | |
| CN103529233A (en) | Method for operating a speed sensing device | |
| KR101952962B1 (en) | Error Detection Method for a Position Sensor of Smart Booster System | |
| CN208432631U (en) | A kind of sensor detecting Anti-pinch motor revolving speed, steering | |
| JP2007236032A (en) | Ripple detector and number of revolution detector of motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140716 |
|
| RJ01 | Rejection of invention patent application after publication |