CN101763873A - Rectification method for parameter of spindle motor controller - Google Patents
Rectification method for parameter of spindle motor controller Download PDFInfo
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- CN101763873A CN101763873A CN200810181283A CN200810181283A CN101763873A CN 101763873 A CN101763873 A CN 101763873A CN 200810181283 A CN200810181283 A CN 200810181283A CN 200810181283 A CN200810181283 A CN 200810181283A CN 101763873 A CN101763873 A CN 101763873A
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- spindle motor
- rotating speed
- motor controller
- mistiming
- time
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Abstract
The invention relates to a rectification method for the parameter of a spindle motor controller, which comprises an optical disk, a spindle motor and a spindle motor controller. The rectification method is characterized by comprising the following steps of: when driving a CD-ROM to read the optical disk by the spindle motor, measuring the time T1 of the spindle motor reaching a first set rotational speed and the time T2 of the spindle motor reaching a second set rotational speed respectively, calculating to obtain a time difference (T2 minus T1), and because the spindle motor controller stores the control parameters of the spindle motor, which correspond to different time differences (T2 minus T1), invoking the control parameter of the spindle motor, which corresponds to the time difference (T2 minus T1), by the spindle motor controller for controlling the rotational speed of the spindle motor. Thus, except for obtaining the control parameter of the rotational speed of the spindle motor quickly and accurately, a consistent control result can also be obtained.
Description
Technical field
The present invention relates to a kind of bearing calibration of spindle motor controller parameter, particularly a kind of can be fast, stable and as one man control the method for principal axis motor rotation speed.
Background technology
Now, the fast development of optical information access technique makes the rotating speed of Spindle Motor require more and more higher.The rotation of Spindle Motor control video disc uses one group of rotating speed (PI) controller to control revolution frequency and rotating speed usually.General rotational speed governor can simulate suitable controller by the characteristic to Spindle Motor (Spindle Motor).When product development, get at present the motor of some and verify, get a general value, this value is arranged at spindle motor controller as parameter, can't do correction at each motor.As everyone knows, under the situation of Spindle Motor high speed rotating, the offset that is produced when the weight of video disc, size and rotation all can have influence on the result that control is come out, though the CD-ROM drive program can be calculated the output intensity of that rotating speed in advance when variable speed, mode output earlier with open circuit, make its convergence with rotational speed governor then, as Fig. 1.But because the difference of motor and video disc, the strength of this section " output in advance " causes motor rotary speed and inequality, and this can cause the margin of error and the mistiming of one section rotation of Spindle Motor, can not be fast, the stable rotating speed of as one man controlling Spindle Motor that reaches.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of bearing calibration of spindle motor controller parameter, particularly a kind of can be fast, stable and as one man control the method for principal axis motor rotation speed.
To achieve these goals, the invention provides a kind of bearing calibration of spindle motor controller parameter, comprise CD, Spindle Motor and spindle motor controller, it is characterized in that described bearing calibration comprises: when described Spindle Motor driving CD-ROM drive reads CD, measure the time T 2 that Spindle Motor arrives the time T 1 of the first setting rotating speed and arrives the second setting rotating speed respectively, calculate the mistiming (T2-T1), the spindle motor controller internal memory contains the pairing Spindle Motor controlled variable of different time poor (T2-T1), spindle motor controller calls pairing Spindle Motor controlled variable of this mistiming (T2-T1), is used to control principal axis motor rotation speed.
The adquisitiones of described Spindle Motor controlled variable comprises: insert CD-ROM drive with known different types of optical disks, and make Spindle Motor drive CD by optimum speed, set in advance first and set the rotating speed and the second setting rotating speed, measure arrival first respectively and set the time of rotating speed and the time that rotating speed is set in arrival second, obtain known different types of optical disks and set the best Spindle Motor controlled variable that rotating speed to the second is set this CD of mistiming of rotating speed and this mistiming correspondence from first, obtain the mistiming and the corresponding best Spindle Motor controlled variable data of different types of optical disks.
The rotating speed of starting stage when the first setting rotating speed and the second setting rotating speed are Spindle Motor driving CD-ROM drive, described second sets rotating speed is less than or equal to Spindle Motor optimal drive rotating speed.
Described different types of optical disks comprises the CD that disk track does not wait or weight does not wait.
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet accompanying drawing only provide with reference to and usefulness is described, be not to come the present invention is limited.
Description of drawings
The effect synoptic diagram of the existing rotational speed governor control of Fig. 1 Spindle Motor.
The schematic diagram of Fig. 2 bearing calibration of the present invention.
Another schematic diagram of Fig. 3 bearing calibration of the present invention.
Among Fig. 4 the present invention CD weight with set rotating speed to the second from first and set rotating speed required time graph of a relation.
The step synoptic diagram of Fig. 5 bearing calibration of the present invention.
Embodiment
The rotation of Spindle Motor control CD video disc in CD-ROM drive, frequency and rotating speed that rotational speed governor control is rotated, usually for the CD of known dimensions and weight, there is suitable controlled variable to make it, makes CD-ROM drive reach best user mode according to predefined optimal drive rotational speed.When CD-ROM drive uses, because situations such as the optical disk size of putting into, weight can't be predicted, therefore need motor controller constantly to adjust convergence, and CD-ROM drive can't be discerned the dissimilar of CD automatically, therefore can't realize reasonable control spindle in optical disc drive motor optimal drive parameter.The inventor has done following experiment, has obtained content shown in Figure 2.
CD drive is that CD-ROM drive reads dissimilar CDs, the drive shaft motor begins to rotate (the wherein fixing control output of employing with the CD video disc from stationary state, for example open loop output), monitor the rotating speed of motor in the program, and preestablish first of motor and set rotating speed, when motor rotary speed reaches the first setting rotating speed of this setting, write down the very first time of this moment, set second of motor and set rotating speed, when motor rotary speed reaches the second setting rotating speed that sets, write down second time of this moment.And calculate mistiming of second time and the very first time.(8cm 12cm) tests, and adopts A, B, four kinds of CD drive that C, D are different to test to different discs.Obtain Fig. 2.
As shown in Figure 2, divide three kinds of different states (zero load, 8cm CD, 12cm CD) to describe, for different CD video discs, the numerical value of this mistiming is obviously different, even adopt different CD drive, it still can judge the type of CD video disc by this time difference.
Please refer to Fig. 3, Fig. 4, wherein Fig. 3 painted is rotating speed and the time relationship that the CD of three kinds of Different Weight reaches in CD-ROM drive.With the 8CM CD is example, choose video disc A, B, the C of three kinds of Different Weight, respectively video disc is begun to rotate from stationary state, monitor the rotating speed of motor, set motor first and set rotating speed SP1, when motor rotary speed reaches the first setting rotating speed SP1 that sets, write down time A1, B1, the C1 of this moment, set second motor and set rotating speed SP2, when motor rotary speed reaches the second setting rotating speed SP2 that sets, write down time A2, B2, the C2 of this moment.From Fig. 3, find out the disc weight difference easily, it is accelerated to rotating speed 2 required time differences from rotating speed 1.Fig. 4 painted is that the CD of three kinds of Different Weight is set rotating speed from first and arrived second and set required mistiming and the disc weight relation of rotating speed.With the data processing of A, B, C among Fig. 3, the CD that can obtain three kinds of Different Weight is as shown in Figure 4 set required mistiming and the disc weight relation of the rotating speed SP1 arrival second setting rotating speed SP2 from first.The weight of video disc and video disc is set rotating speed to the second from first set the rotating speed required time and be directly proportional as can be seen from Figure 4, and linear relationship is arranged.
The weight of video disc and video disc is set rotating speed from first accelerate to second and set the rotating speed required time and be directly proportional mainly is because will overcome the moment of inertia that is caused because of video disc weight, the time difference that is produced.Utilize this time difference can judge the difference of Spindle Motor characteristic, therefore this time difference of CD video disc and the drive characteristic of Spindle Motor can be formed corresponding relation, this mistiming that just can utilize the CD video disc is carried out the parameter correction of respective major axes motor to the CD that is suitable for its actual driving, and the actuating speed that CD drive is set by the best is carried out optimal drive to the CD that drives.
Please refer to Fig. 5, it is painted is the step synoptic diagram of bearing calibration of the present invention, disc with known dimensions, weight places CD-ROM drive in advance, measure it and set the second setting required mistiming of rotating speed of rotating speed arrival, the controlled variable formation corresponding tables of the best Spindle Motor that the mistiming that records is corresponding with it from first.Measure the CD of different sizes, weight more respectively, obtain many group mistiming best motor controlled variable data corresponding with it, with these mistimings and corresponding optimization control parameter data storage in motor controller.
CD drive is when driving CD, at first a disc is placed CD-ROM drive, optical disk drives record first is set T1 time of arrival of rotating speed, time T 2 with the second setting rotating speed arrival, obtain the mistiming (T2-T1) of this optical disk, spindle motor controller is compared the mistiming (T2-T1) that records with the known dimensions of its storage, the mistiming of weight disc, obtain optimization control parameter data, and directly Spindle Motor is carried out suitable rotating speed control by these optimization control parameter data corresponding to this disc.
The present invention compared with prior art has fast, accurately and unanimously controls the effect of rotating speed.
Claims (4)
1. the bearing calibration of a spindle motor controller parameter, comprise CD, Spindle Motor and spindle motor controller, it is characterized in that described bearing calibration comprises: when described Spindle Motor driving CD-ROM drive reads CD, measure the time T 2 that Spindle Motor arrives the time T 1 of the first setting rotating speed and arrives the second setting rotating speed respectively, calculate the mistiming (T2-T1), the spindle motor controller internal memory contains the pairing Spindle Motor controlled variable of different time poor (T2-T1), spindle motor controller calls pairing Spindle Motor controlled variable of this mistiming (T2-T1), is used to control principal axis motor rotation speed.
2. the bearing calibration of spindle motor controller parameter according to claim 1, the adquisitiones that it is characterized in that described Spindle Motor controlled variable comprises: insert CD-ROM drive with known different types of optical disks, and make Spindle Motor drive CD by optimum speed, set in advance first and set the rotating speed and the second setting rotating speed, measure arrival first respectively and set the time of rotating speed and the time that rotating speed is set in arrival second, obtain known different types of optical disks and set the best Spindle Motor controlled variable that rotating speed to the second is set this CD of mistiming of rotating speed and this mistiming correspondence from first, obtain the mistiming and the corresponding best Spindle Motor controlled variable data of different types of optical disks.
3. the bearing calibration of spindle motor controller parameter according to claim 1, it is characterized in that the rotating speed of starting stage when the first setting rotating speed and the second setting rotating speed are Spindle Motor driving CD-ROM drive, described second sets rotating speed is less than or equal to Spindle Motor optimal drive rotating speed.
4. the bearing calibration of spindle motor controller parameter according to claim 1 is characterized in that described different types of optical disks comprises the CD that disk track does not wait or weight does not wait.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810181283A CN101763873A (en) | 2008-11-14 | 2008-11-14 | Rectification method for parameter of spindle motor controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810181283A CN101763873A (en) | 2008-11-14 | 2008-11-14 | Rectification method for parameter of spindle motor controller |
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| CN101763873A true CN101763873A (en) | 2010-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810181283A Pending CN101763873A (en) | 2008-11-14 | 2008-11-14 | Rectification method for parameter of spindle motor controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426445A (en) * | 2012-05-17 | 2013-12-04 | 飞利浦建兴数位科技股份有限公司 | Control method for spindle motor |
| CN103557982B (en) * | 2013-06-25 | 2016-05-25 | 松下家电研究开发（杭州）有限公司 | The inspection method of motor deviation and application thereof |
-
2008
- 2008-11-14 CN CN200810181283A patent/CN101763873A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426445A (en) * | 2012-05-17 | 2013-12-04 | 飞利浦建兴数位科技股份有限公司 | Control method for spindle motor |
| CN103557982B (en) * | 2013-06-25 | 2016-05-25 | 松下家电研究开发（杭州）有限公司 | The inspection method of motor deviation and application thereof |
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Open date: 20100630 |