Hard disk magnetic head load method capable of compensating friction force

A magnetic head loading and friction technology, applied in the field of control, can solve problems such as non-linear friction, unstable hard disk head speed, and deterioration of control quality, and achieve good control quality, safe head loading process, and accurate models Effect

Inactive Publication Date: 2007-05-09
重庆禾兴江源科技发展有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0009] The object of the present invention is to provide a kind of hard disk magnetic head loading method that frictional force is compensated, because adopting traditional proportional-integral control method to load hard disk magnetic head in the prior art, and not considering the influence of non-linear frictional force, cause The speed of the hard disk head is not stable during the loading process, and there is a large noise, which deteriorates the control quality. It is realized that the loading process of the voice coil motor can be carried out without the need for accurate modeling of the friction force. precise control

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  • Hard disk magnetic head load method capable of compensating friction force
  • Hard disk magnetic head load method capable of compensating friction force
  • Hard disk magnetic head load method capable of compensating friction force

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Embodiment Construction

[0047] The core of the present invention is to provide a hard disk magnetic head loading method that compensates for friction. When the hard disk magnetic head receives the loading command, the system sets the target loading speed of the magnetic head and the parameter value at the current moment, and the system passes through the state according to the parameter value at the current moment. The space equation obtains the parameter value at the next moment until the hard disk head is loaded on the platter.

[0048]In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0049] The control process principle of hard disk magnetic head loading among the present invention is as shown in Figure 2:

[0050] First design the state space equation during the loading process of the hard disk head, and define the e...

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Abstract

A method for loading hard-disc magnetic head to compensate frictional force includes setting object loading speed and current parameter value by system when loading command is received by hard-disc magnetic head, obtaining current actual loading speed and parameter of next time according to said current parameter value, regulating loading speed of head-disc magnetic head as per current actual loading speed till hard-disc magnetic head is loaded on disc.

Description

technical field [0001] The invention relates to the field of control, in particular to a method for loading a magnetic head of a hard disk for compensating frictional force. Background technique [0002] When the hard disk is to be read, the magnetic head in the hard disk is loaded onto the rotating disc from the magnetic head docking station, which is a trapezoidal square. During the loading process, the head arm resting on one end of the trapezoidal square will slide from one end of the trapezoid to the upper bottom part of the trapezoid, then slide to the other end of the trapezoid, and finally fall on the rotating disc. The smoothness of the surface, the loading speed of the head arm, the material type of the trapezoidal block slope, and the airflow inside the hard disk and other factors will cause relatively large friction between the magnetic head and the trapezoidal block, and due to the friction generated during the loading process The force has nonlinear characteri...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B21/12G11B21/02G11B5/54
Inventor 刘明刚黄栋州
Owner 重庆禾兴江源科技发展有限公司
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