公开(公告)号：US08260500B2

公开(公告)日：2012-09-04

申请号：US12565271

申请日：2009-09-23

申请人： Hideyuki Murakami

发明人： Hideyuki Murakami

IPC分类号： B62D5/04

CPC分类号： B62D5/0472 ,  B62D5/0463

摘要： The electric power steering apparatus is provided with: a steering torque detector that detects steering torque of a steering wheel; an electric motor that applies steering assist force to the steering wheel; a current detector that detects an actual current actually supplied to the electric motor; a target current setting unit that sets a target current to be supplied to the electric motor, on the basis of the steering torque detected by the steering torque detector; a feedback controller that performs feedback control so that the target current and the actual current coincide with each other; and a feedforward controller that performs feedforward control for increasing the actual current detected by the current detector if the target current increases, the feedforward controller including a frequency compensator that provides a smaller amount of increase in the actual current as a frequency of a variation in the target current is lower.

摘要翻译： 电动助力转向装置设有：检测方向盘的转向转矩的转向转矩检测器; 向所述方向盘施加转向辅助力的电动机; 电流检测器，其检测实际供给到电动机的实际电流; 目标电流设定单元，其基于由转向转矩检测器检测到的转向转矩来设定要提供给电动机的目标电流; 反馈控制器，其执行反馈控制，使得目标电流和实际电流彼此一致; 以及前馈控制器，其执行前馈控制，以在目标电流增加时增加由电流检测器检测到的实际电流，前馈控制器包括频率补偿器，该频率补偿器提供实际电流的较小量，作为变化的频率 目标电流较低。

公开(公告)号：US5892185A

公开(公告)日：1999-04-06

申请号：US864724

申请日：1997-05-28

申请人： Osamu Takahashi ,  Hideyuki Murakami ,  Kunio Mitobe

发明人： Osamu Takahashi ,  Hideyuki Murakami ,  Kunio Mitobe

IPC分类号： H04R9/02 ,  G10K13/00 ,  H04R7/22 ,  H04R31/00

CPC分类号： H04R31/006 ,  G10K13/00

摘要： A speaker unit has a cylindrical yoke, an annular frame secured to the yoke, and a diaphragm having a central spherical vibrating portion and an annular support portion formed around the vibrating portion and mounted on the annular frame. An annular vertical holding wall is formed on the annular frame, and an annular vertical abutment portion is formed on the annular support portion and abutted against the annular vertical holding wall.

摘要翻译： 扬声器单元具有圆柱形磁轭，固定到磁轭的环形框架和具有中心球形振动部分和形成在振动部分周围并安装在环形框架上的环形支撑部分的隔膜。 在环形框架上形成环形的垂直保持壁，并且在环形支撑部分上形成环形垂直抵接部分，并抵靠环形垂直保持壁。

公开(公告)号：US20140203520A1

公开(公告)日：2014-07-24

申请号：US14239038

申请日：2012-09-04

申请人： Takuya Yamanaka ,  Suguru Yoshida ,  Masafumi Kato ,  Hideyuki Murakami

发明人： Takuya Yamanaka ,  Suguru Yoshida ,  Masafumi Kato ,  Hideyuki Murakami

IPC分类号： F04D29/10 ,  F16J15/32

CPC分类号： F04D29/10 ,  C08K3/013 ,  C08K3/22 ,  C08K5/14 ,  C08K5/25 ,  F04D29/106 ,  F16J15/32 ,  C08L21/00

摘要： Disclosed is a lip seal for water pump made of a rubber-like elastic material, fixed to a housing as a fixed side and in sliding contact with a shaft rotating relative to the housing; the lip seal being obtained by vulcanization-molding of a rubber composition comprising 100 parts by weight of the rubber-like elastic material, 1 to 150 parts by weight of a reinforcing filler, 5 to 90 parts by weight of a non-reinforcing filler having an average particle diameter of 1 μm or more, 0.1 to 5 parts by weight of a coupling agent, 1 to 15 parts by weight of a co-crosslinking agent, and 0.5 to 10 parts by weight of an organic peroxide. The lip seal for water pump provides a materially solution, rather than a structural solution, to prevent softening and volume swelling of the rubber-like elastic material and the generation of deposits in the rotating shaft, which are problematic for rotation torque and LLC resistance.

摘要翻译： 公开了一种由橡胶状弹性材料制成的水泵唇形密封件，固定在壳体上作为固定侧，并与相对于壳体旋转的轴滑动接触; 通过硫化成型含有100重量份的橡胶状弹性材料的橡胶组合物，1〜150重量份的增强填料，5〜90重量份的不具有 平均粒径为1μm以上，偶联剂为0.1〜5重量份，共交联剂为1〜15重量份，有机过氧化物为0.5〜10重量份。 用于水泵的唇形密封件提供了一种物质上的解决方案，而不是结构解决方案，以防止橡胶状弹性材料的软化和体积膨胀以及旋转轴中的沉积物的产生，这对旋转扭矩和LLC电阻是有问题的。

公开(公告)号：US20100217487A1

公开(公告)日：2010-08-26

申请号：US12565271

申请日：2009-09-23

申请人： Hideyuki Murakami

发明人： Hideyuki Murakami

IPC分类号： G06F19/00 ,  B62D6/00

CPC分类号： B62D5/0472 ,  B62D5/0463

摘要： The electric power steering apparatus is provided with: a steering torque detector that detects steering torque of a steering wheel; an electric motor that applies steering assist force to the steering wheel; a current detector that detects an actual current actually supplied to the electric motor; a target current setting unit that sets a target current to be supplied to the electric motor, on the basis of the steering torque detected by the steering torque detector; a feedback controller that performs feedback control so that the target current and the actual current coincide with each other; and a feedforward controller that performs feedforward control for increasing the actual current detected by the current detector if the target current increases, the feedforward controller including a frequency compensator that provides a smaller amount of increase in the actual current as a frequency of a variation in the target current is lower.

摘要翻译： 电动助力转向装置设有：检测方向盘的转向转矩的转向转矩检测器; 向所述方向盘施加转向辅助力的电动机; 电流检测器，其检测实际供给到电动机的实际电流; 目标电流设定单元，其基于由转向转矩检测器检测到的转向转矩来设定要提供给电动机的目标电流; 反馈控制器，其执行反馈控制，使得目标电流和实际电流彼此一致; 以及前馈控制器，其执行前馈控制，以在目标电流增加时增加由电流检测器检测到的实际电流，前馈控制器包括频率补偿器，该频率补偿器提供实际电流的较小量，作为变化的频率 目标电流较低。