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    • 1. 发明申请
    • SYSTEM AND METHOD FOR ACTIVE REVENERATION OF A DPF OF A CONSTRUCTION MACHINE HAVING AN ELECTRO-HYDRAULIC PUMP
    • 具有电动液压泵的建筑机械DPF的主动收缩系统及方法
    • US20130333355A1
    • 2013-12-19
    • US13997536
    • 2011-12-26
    • Bong Jin LeeYong Ho ThoHo Sung Kim
    • Bong Jin LeeYong Ho ThoHo Sung Kim
    • F01N3/023
    • F01N3/023B60W10/30B60Y2300/476E02F9/2066E02F9/2235E02F9/2282E02F9/2292E02F9/2296F01N3/0253F01N3/035F01N3/106F01N9/002F02D41/029Y02T10/47
    • An exemplary embodiment of the present disclosure relates to a system for active regeneration of a DPF of a diesel engine, and more particularly, to a system and a method for active regeneration of a DPF including an electro-hydraulic pump, in which a non-work load is arbitrarily provided to the diesel engine to quickly perform active regeneration of the DPF even in a state in which substantial work of the construction machine having an electro-hydraulic pump is stopped, and to this end, provides a system and a method for active regeneration of a DPF of a construction machine in that, when performing the active regeneration of the DPF, a center bypass cut valve is driven to convert a hydraulic system of the construction machine to an open state, a predetermined flow rate of working fluid is discharged from the electro-hydraulic pump using an adjustor such as an electromagnetic proportional control valve (EPPR), and the working fluid is collected in to a tank through an opened center bypass line, thus allowing the working fluid to flow without driving a working machine to produce a so-called non-work load, and the engine is overheated by the load, and the temperature of the exhaust gas is raised to a predetermined temperature so as to satisfy a temperature condition required for the active regeneration of the DPF.
    • 本公开的示例性实施例涉及一种用于柴油发动机的DPF的主动再生的系统,更具体地,涉及一种用于主动再生包括电动液压泵的DPF的系统和方法,其中, 即使在停止具有电动液压泵的施工机械的大量工作的状态下,也可以将工作负荷任意地提供给柴油发动机以快速地执行DPF的主动再生,并且为此,提供一种系统和方法 主动再生建筑机械的DPF,当进行DPF的主动再生时,驱动中心旁通切断阀将建筑机械的液压系统转换为打开状态,工作流体的规定流量为 使用诸如电磁比例控制阀(EPPR)的调节器从电动液压泵排出,并且工作流体通过打开的中心被收集到罐中 从而允许工作流体在不驱动工作机器的情况下流动而产生所谓的非工作负载,并且发动机由负载过热,并且排气的温度升高到预定温度,以便 以满足DPF的主动再生所需的温度条件。
    • 2. 发明申请
    • SILENT RETRACT OF HEADS IN A HARD DISK DRIVE
    • 硬盘在磁盘驱动器中的静电回放
    • US20100254045A1
    • 2010-10-07
    • US12416621
    • 2009-04-01
    • Bong Jin Lee
    • Bong Jin Lee
    • G11B5/54
    • G11B5/54G11B21/12
    • A hard disk drive with an actuator arm assembly that is coupled to a head and includes a voice coil motor. The drive also includes a drive circuit that provides a drive current to the voice coil motor to move the actuator arm assembly into contact with a magnet. The drive circuit limits an amplitude, and/or changes the pulse width, of the drive current as the actuator arm assembly approaches the magnet. Limiting the amplitude and/or changing the pulse widths reduces any audible noise associated with retracting the heads.
    • 具有致动器臂组件的硬盘驱动器,其联接到头部并且包括音圈电机。 该驱动器还包括驱动电路,该驱动电路向音圈电机提供驱动电流以将致动器臂组件移动到与磁体接触。 当致动器臂组件接近磁体时,驱动电路限制驱动电流的幅度和/或改变脉冲宽度。 限制幅度和/或改变脉冲宽度可减少与缩回头部相关的任何可听见的噪音。
    • 5. 发明授权
    • System and method for active regeneration of a DPF of a construction machine having an electro-hydraulic pump
    • 具有电动液压泵的建筑机械DPF的主动再生系统和方法
    • US09086004B2
    • 2015-07-21
    • US13997536
    • 2011-12-26
    • Bong Jin LeeYong Ho ThoHo Sung Kim
    • Bong Jin LeeYong Ho ThoHo Sung Kim
    • F01N3/00F01N3/02F01N3/023F01N3/025F01N3/035F01N3/10F01N9/00F02D41/02B60W10/30
    • F01N3/023B60W10/30B60Y2300/476E02F9/2066E02F9/2235E02F9/2282E02F9/2292E02F9/2296F01N3/0253F01N3/035F01N3/106F01N9/002F02D41/029Y02T10/47
    • An exemplary embodiment of the present disclosure relates to a system for active regeneration of a DPF of a diesel engine, and more particularly, to a system and a method for active regeneration of a DPF including an electro-hydraulic pump, in which a non-work load is arbitrarily provided to the diesel engine to quickly perform active regeneration of the DPF even in a state in which substantial work of the construction machine having an electro-hydraulic pump is stopped, and to this end, provides a system and a method for active regeneration of a DPF of a construction machine in that, when performing the active regeneration of the DPF, a center bypass cut valve is driven to convert a hydraulic system of the construction machine to an open state, a predetermined flow rate of working fluid is discharged from the electro-hydraulic pump using an adjustor such as an electromagnetic proportional control valve (EPPR), and the working fluid is collected in to a tank through an opened center bypass line, thus allowing the working fluid to flow without driving a working machine to produce a so-called non-work load, and the engine is overheated by the load, and the temperature of the exhaust gas is raised to a predetermined temperature so as to satisfy a temperature condition required for the active regeneration of the DPF.
    • 本公开的示例性实施例涉及一种用于柴油发动机的DPF的主动再生的系统,更具体地,涉及一种用于主动再生包括电动液压泵的DPF的系统和方法,其中, 即使在停止具有电动液压泵的施工机械的大量工作的状态下,也可以将工作负荷任意地提供给柴油发动机以快速地执行DPF的主动再生,并且为此,提供了一种系统和方法 主动再生建筑机械的DPF,当进行DPF的主动再生时,驱动中心旁通切断阀将建筑机械的液压系统转换为打开状态,工作流体的规定流量为 使用诸如电磁比例控制阀(EPPR)的调节器从电动液压泵排出,并且工作流体通过打开的中心被收集到罐中 从而允许工作流体在不驱动工作机器的情况下流动而产生所谓的非工作负荷,并且发动机由负载过热,并且排气的温度升高到预定温度,以便 以满足DPF的主动再生所需的温度条件。
    • 7. 发明授权
    • Silent retract of heads in a hard disk drive
    • 在硬盘驱动器中静音收回磁头
    • US08134805B2
    • 2012-03-13
    • US12416621
    • 2009-04-01
    • Bong Jin Lee
    • Bong Jin Lee
    • G11B5/54
    • G11B5/54G11B21/12
    • A hard disk drive with an actuator arm assembly that is coupled to a head and includes a voice coil motor. The drive also includes a drive circuit that provides a drive current to the voice coil motor to move the actuator arm assembly into contact with a magnet. The drive circuit limits an amplitude, and/or changes the pulse width, of the drive current as the actuator arm assembly approaches the magnet. Limiting the amplitude and/or changing the pulse widths reduces any audible noise associated with retracting the heads.
    • 具有致动器臂组件的硬盘驱动器,其联接到头部并且包括音圈电机。 该驱动器还包括驱动电路,该驱动电路向音圈电机提供驱动电流以将致动器臂组件移动到与磁体接触。 当致动器臂组件接近磁体时,驱动电路限制驱动电流的幅度和/或改变脉冲宽度。 限制幅度和/或改变脉冲宽度可减少与缩回头部相关的任何可听见的噪音。
    • 9. 发明授权
    • Apparatus and method for controlling on-track operation of an actuator in a hard disk drive
    • 用于控制硬盘驱动器中的致动器的轨道上操作的装置和方法
    • US06414815B1
    • 2002-07-02
    • US09253762
    • 1999-02-22
    • Bong-jin Lee
    • Bong-jin Lee
    • G11B5596
    • G11B5/59611
    • Apparatus and method of controlling the on-track position of an actuator in a hard disk drive to be held on a predetermined position of a track. The apparatus includes a voice coil motor (VCM) driving unit, a position detecting unit, and a controller. The voice coil motor (VCM) driving unit applies a predetermined current to drive a voice coil motor (VCM). The position detecting unit reads data read by a head to detect a position of the actuator. The controller disables the voice coil motor (VCM) driving unit after unlatching the actuator, and enables the voice coil motor (VCM) driving unit if the position detecting unit detects that the actuator is positioned on a predetermined track and bringing the actuator on-track depending on the output of the position detecting unit. The method includes the steps of unlatching the actuator, disabling a voice coil motor (VCM) driving unit, determining whether the actuator stops on a predetermined track, and enabling the voice coil motor (VCM) driving unit if the actuator stops on a predetermined track, to bring the actuator on-track. Thus, the voice coil motor (VCM) driving unit is disabled after unlatch, minimizing external disturbance due to offset of circuits or devices, such as the voice coil motor (VCM) driving unit, an operational amplifier (OP-AMP) and one or more passive elements of the apparatus.
    • 控制要保持在轨道的预定位置的硬盘驱动器中的致动器的在轨位置的装置和方法。 该装置包括音圈马达(VCM)驱动单元,位置检测单元和控制器。 音圈马达(VCM)驱动单元施加预定电流来驱动音圈马达(VCM)。 位置检测单元读取头读取的数据,以检测致动器的位置。 如果位置检测单元检测到执行器位于预定的轨道上并使致动器在轨上,则控制器在解锁致动器之后禁用音圈马达(VCM)驱动单元,并使音圈马达(VCM)驱动单元能够启动 取决于位置检测单元的输出。 该方法包括以下步骤:解锁致动器,禁用音圈电机(VCM)驱动单元,确定执行器是否停止在预定轨道上,以及如果致动器停止在预定轨道上,则启用音圈电机(VCM)驱动单元 ,使执行器进入轨道。 因此,音圈电机(VCM)驱动单元在解锁之后被禁用,最小化由于诸如音圈电机(VCM)驱动单元,运算放大器(OP-AMP)和一个或多个电路的电路或设备的偏移引起的外部干扰 更无源元件的装置。