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137 条记录 (耗时 0.032 秒)

    Variable valve mechanism control device and control method
    52.
    发明申请
    Variable valve mechanism control device and control method 失效
    变阀机构控制装置及控制方法

    公开(公告)号：US20060130787A1

    公开(公告)日：2006-06-22

    申请号：US11295170

    申请日：2005-12-06

    申请人： Masahiro Arai ,  Tsuneyasu Nohara

    发明人： Masahiro Arai ,  Tsuneyasu Nohara

    IPC分类号： F01L1/34

    CPC分类号： F02D13/0207 ,  F01L1/34 ,  F01L13/0021 ,  F01L13/0026 ,  F01L2013/0073 ,  F02D13/0265 ,  F02D41/222 ,  F02D2041/001 ,  Y02T10/18 ,  Y02T10/40

    摘要： With a variable valve timing system, engine operability may be lost when performing open control of lift characteristic amounts to the minimum or the maximum of a variable range when a sensor error occurs. The present invention provides a lift operation angle changing mechanism that can continuously change intake valve lift amount and operation angle within a prescribed variable range. At B11, the target operation angle is calculated based on the number of engine revolutions and the accelerator pedal opening APO. At B12, an error is determined for the operation angle sensor that detects the actual operation angle. At B13, the normal control amount is calculated based on the target operation angle and the actual operation angle. At B14, the failure control amount is calculated based on the number of engine revolutions. Therefore, an intermediate value within the variable range can be obtained as the failure control amount. At B15, the normal control amount is output to actuator 51 under normal operation, and the failure control amount is output to actuator 51 when an error occurs.

    摘要翻译： 利用可变气门正时系统，当发生传感器错误时，当升力特性量开始控制到可变范围的最小值或最大值时，可能会损失发动机的可操作性。 本发明提供一种提升操作角度改变机构，其能够将进气门升程量和操作角度连续地变化到规定的可变范围内。 在B11中，基于发动机转速和加速器踏板开度APO计算目标操作角度。 在B 12，对于检测实际操作角度的操作角度传感器确定错误。 在B 13，基于目标操作角度和实际操作角度来计算正常控制量。 在B14，基于发动机转数来计算故障控制量。 因此，可以获得可变范围内的中间值作为故障控制量。 在B15中，正常操作时将正常控制量输出到致动器51，当发生错误时，故障控制量被输出到致动器51。

    Disk array system based on disks with a fixed-length unit of access
    55.
    发明申请
    Disk array system based on disks with a fixed-length unit of access 失效
    基于具有固定长度访问单元的磁盘的磁盘阵列系统

    公开(公告)号：US20050071553A1

    公开(公告)日：2005-03-31

    申请号：US10443886

    申请日：2003-05-23

    申请人： Akihiro Mannen ,  Naoto Matsunami ,  Ikuya Yagisawa ,  Masahiko Sato ,  Masahiro Arai

    发明人： Akihiro Mannen ,  Naoto Matsunami ,  Ikuya Yagisawa ,  Masahiko Sato ,  Masahiro Arai

    IPC分类号： G06F12/08 ,  G06F3/06 ,  G06F11/10 ,  G06F12/00

    CPC分类号： G06F3/0619 ,  G06F3/064 ,  G06F3/0689 ,  G06F11/1076 ,  G06F2211/1009

    摘要： Conventional methods for appending a validation code are not applicable to a disk array system in which the disk array comprises disk devices having a fixed sector length. The present invention solves this problem by separating validation codes from data blocks, bundling them together in blocks that can be easily matched with sectors, and carrying out all the associated management and control by hardware, such as coordination between validation codes and data blocks and operations of reading from and writing into the disk devices, thereby offering the same level of reliability as with conventional systems.

    摘要翻译： 用于附加验证码的常规方法不适用于磁盘阵列系统，其中磁盘阵列包括具有固定扇区长度的磁盘设备。 本发明通过将验证码与数据块分开来解决这个问题，将它们捆绑在一起可以容易地与扇区匹配的块，并且通过硬件执行所有相关的管理和控制，诸如验证码和数据块之间的协调以及操作 读取和写入磁盘设备，从而提供与常规系统相同的可靠性水平。

    Control apparatus of variable valve timing system for internal combustion engine
    56.
    发明授权
    Control apparatus of variable valve timing system for internal combustion engine 有权

    公开(公告)号：US06637391B2

    公开(公告)日：2003-10-28

    申请号：US10157011

    申请日：2002-05-30

    申请人： Hirotada Muraki ,  Masahiro Arai

    发明人： Hirotada Muraki ,  Masahiro Arai

    IPC分类号： F01L134

    CPC分类号： F01L1/34406 ,  F01L1/34 ,  F01L2800/00

    摘要： In a variable valve timing system for an internal combustion engine, a soft-landing revertive control that an electromagnetic brake is de-energized and then an angular position of a camshaft relative to a crankshaft returns to an initial position is performed by a combination of a feedback control and a feedforward control. During the revertive control, the feedback control is executed in such a manner as to temporarily halt the angular phase of the camshaft at a predetermined position, which is phase-changed by a predetermined phase angle from the initial position. After the feedback control, the operating mode is switched to a feedforward control, so as to return the angular phase of the camshaft from the predetermined position to the initial position by changing a controlled quantity or a control-signal duty cycle value for the electromagnetic brake with a predetermined time rate of change.