公开(公告)号：US20100128383A1

公开(公告)日：2010-05-27

申请号：US12623345

申请日：2009-11-20

申请人： Shinji MATSUSHITA ,  Kenichi Kuramoto ,  Kanji Kuroki ,  Takahiro Nishioka ,  Masayuki Ishikawa

发明人： Shinji MATSUSHITA ,  Kenichi Kuramoto ,  Kanji Kuroki ,  Takahiro Nishioka ,  Masayuki Ishikawa

IPC分类号： G11B21/02

CPC分类号： G11B5/6029 ,  G11B5/6005 ,  G11B5/6035 ,  G11B5/6058 ,  G11B5/6064 ,  G11B5/607

摘要： A disk drive. The disk drive includes a disk configured to store data, a slider configured to fly in proximity to the disk, and a magnetic-recording head on the slider configured to access the disk. The disk drive also includes a moving mechanism configured to support and to move the head-slider, an adjustment portion configured to adjust clearance between the magnetic-recording head and the disk, and a controller configured to control the adjustment portion to control the clearance. The controller is configured to perform clearance control in a first mode in an operation selected from the group consisting of reading user data and writing user data according to a change in fly height of the slider after a load operation, and subsequently is configured to perform clearance control in a second mode in an operation selected from the group consisting of reading user data and writing user data.

摘要翻译： 磁盘驱动器 磁盘驱动器包括被配置为存储数据的盘，被配置为在盘附近飞行的滑块以及被配置为访问盘的滑块上的磁记录头。 磁盘驱动器还包括移动机构，其被配置为支撑和移动磁头滑动器，配置成调节磁记录磁头和磁盘之间的间隙的调整部分以及​​被配置为控制调整部分来控制间隙的控制器。 控制器被配置为在从包括读取用户数据和在加载操作之后根据滑块的飞行高度的改变来写入用户数据的组中选择的操作中执行第一模式中的间隙控制，并且随后被配置为执行间隙 在从包括读取用户数据和写入用户数据的组中选择的操作中以第二模式进行控制。

公开(公告)号：US20110172883A1

公开(公告)日：2011-07-14

申请号：US13052503

申请日：2011-03-21

申请人： Koji MATSUNO ,  Satoru AKIYAMA ,  Shinji MATSUSHITA ,  Shiro EZOE ,  Masaru KOGURE ,  Hajime OYAMA

发明人： Koji MATSUNO ,  Satoru AKIYAMA ,  Shinji MATSUSHITA ,  Shiro EZOE ,  Masaru KOGURE ,  Hajime OYAMA

IPC分类号： B62D6/00

CPC分类号： B62D6/003 ,  B62D5/008

摘要： A steering control section has a first steering angle correction amount calculating section, a second steering angle correction amount calculating section, and a motor rotational angle calculating section. The first correction amount calculating section calculates a first correction amount based on a vehicle speed and an actual steering wheel angle. The second correction amount calculating section calculates a second correction amount through multiplying a control gain corresponding to the vehicle speed with a value calculated by low-pass filtering a differential value of steering wheel angle. The motor rotational angle calculating section calculates a motor rotational angle corresponding to the value adding the first and second steering angle correction amount, and outputs it to a motor driving section so as to drive an electric motor for correcting the steering angle. Thereby, an unstable vehicle behavior due to a resonance of a yaw motion caused in the steering operation can be suppressed.

摘要翻译： 转向控制部具有第一转向角修正量计算部，第二转向角修正量计算部和电动机转动角计算部。 第一校正量计算部基于车速和实际方向盘角度来计算第一校正量。 第二校正量计算部分通过将与车速相对应的控制增益乘以通过对方向盘角度的差分值进行低通滤波而计算的值来计算第二校正量。 马达旋转角度计算部分计算与增加第一和第二转向角校正量的值相对应的马达旋转角度，并将其输出到马达驱动部分，以驱动用于校正转向角的电动马达。 由此，可以抑制由于在转向操作中引起的偏航运动的共振引起的不稳定的车辆行为。