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公开(公告)号：US20140203520A1
公开(公告)日：2014-07-24
申请号：US14239038
申请日：2012-09-04
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。
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2.发明申请ELECTRIC POWER STEERING APPARATUS, CONTROL METHOD THEREOF AND COMPUTER READABLE MEDIUM 审中-公开电动转向装置，其控制方法和计算机可读介质公开(公告)号：US20120290176A1
公开(公告)日：2012-11-15
申请号：US13561246
申请日：2012-07-30
申请人： Hideyuki MURAKAMI
发明人： Hideyuki MURAKAMI
IPC分类号： B62D6/08
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。
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公开(公告)号：US20120111111A1
公开(公告)日：2012-05-10
申请号：US13384694
申请日：2010-07-20
IPC分类号： G01C19/56
CPC分类号： G01C19/5614
摘要： An angular velocity sensor includes a vibration, first and second sensor electrodes generating an electric charge responsive to an angular velocity applied to the vibration body, first and D/A converters each outputting at least two levels of an electric charge, first and second integrator circuits integrating the electric charge generated by the first and second sensor electrodes and the electric charges output from the first and second D/A converters, respectively, a comparator unit comparing output signals from the first and second integrator circuits, first and second D/A switching units switching levels of the output signals from the first and second D/A converters according to a comparison result of the comparator unit, a first disconnection detecting switch connected between the first sensor electrode and the first integrator circuit, a first voltage source for injecting an electric charge into a point between the first sensor electrode and the first integrator circuit via the first disconnection detecting switch, a second disconnection detecting switch connected between the second sensor electrode and the second integrator circuit, and a second voltage source for injecting an electric charge into a point between the second sensor electrode and the second integrator circuit via the second disconnection detecting switch. This angular velocity sensor has a high reliability and performs stable operation even if ambient environment changes.
摘要翻译： 角速度传感器包括响应于施加到振动体的角速度产生电荷的振动，第一和第二传感器电极，第一和D / A转换器，每个转换器输出至少两个电平的电荷，第一和第二积分器电路 分别对由第一和第二传感器电极产生的电荷和从第一和第二D / A转换器输出的电荷进行积分，比较器单元比较来自第一和第二积分器电路的输出信号，第一和第二D / A转换 单元根据比较器单元的比较结果从第一和第二D / A转换器输出信号的开关电平，连接在第一传感器电极和第一积分器电路之间的第一断开检测开关，用于注入第一电压源的第一电压源 通过f将电荷充入第一传感器电极和第一积分器电路之间的点 第一断开检测开关，连接在第二传感器电极和第二积分器电路之间的第二断开检测开关，以及用于经由第二断开检测将电荷注入到第二传感器电极和第二积分器电路之间的点的第二电压源 开关。 该角速度传感器具有高可靠性，并且即使环境变化也能够稳定地操作。
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4.发明授权Sigma-delta type analog-to-digital (AD) converter and angular velocity sensor using same 有权Sigma-delta型模拟（AD）转换器和使用它的角速度传感器公开(公告)号：US07898448B2
公开(公告)日：2011-03-01
申请号：US12523769
申请日：2008-01-25
申请人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
发明人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
IPC分类号： H03M3/00
CPC分类号： G01C19/56 , G01C19/5649 , H03M3/326 , H03M3/368 , H03M3/43 , H03M3/456 , H03M3/474 , H03M3/486 , H03M3/49
摘要： An angular velocity sensor has a stable output characteristic using a sigma-delta type analog-to-digital converter. The sigma-delta type analog-to-digital converter includes an integrator unit for integrating electric charges output from an input switching device and a digital-to-analog converter unit, and holding at least two integrated values, a comparator unit for comparing at least the two integrated values output from the integrator unit with a predetermined value. The sigma-delta-type analog-to-digital converter also includes an arithmetic operation unit for operating an output signal of the comparator unit, the arithmetic operation unit being provided with a differential operation unit for computing a difference between at least two comparison signals output from comparator unit.
摘要翻译： 角速度传感器使用Σ-Δ型模数转换器具有稳定的输出特性。 Σ-Δ型模数转换器包括用于对从输入开关装置输出的电荷和数模转换器单元进行积分并保持至少两个积分值的积分器单元，比较器单元，用于至少比较 从积分器单元输出的具有预定值的两个积分值。 Σ-Δ型模数转换器还包括用于操作比较器单元的输出信号的算术运算单元，算术运算单元设置有差分运算单元，用于计算至少两个比较信号输出 从比较单元。
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5.发明申请ELECTRIC POWER STEERING APPARATUS, CONTROL METHOD THEREOF AND COMPUTER READABLE MEDIUM 有权电动转向装置，其控制方法和计算机可读介质公开(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
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。
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公开(公告)号：US20100206069A1
公开(公告)日：2010-08-19
申请号：US12680935
申请日：2008-11-07
申请人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
发明人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
摘要： A PLL circuit is provided with an AD converter, a DA converter to which output from the AD converter is inputted, a filter circuit filtering an output signal of the DA converter, a voltage control oscillator outputting a signal of a different frequency in accordance with an output signal from the filter circuit and a frequency divider dividing a signal which the voltage control oscillator outputs. The AD converter operates by a timing signal from the voltage control oscillator and the DA converter outputs an analog signal corresponding to a value which the AD converter outputs by the timing signal outputted from the frequency divider.
摘要翻译： PLL电路设置有AD转换器，AD转换器输入AD转换器的DA转换器，对DA转换器的输出信号进行滤波的滤波器电路，输出不同频率的信号的电压控制振荡器，根据 来自滤波电路的输出信号和分压电压控制振荡器输出的信号的分频器。 AD转换器通过来自压控振荡器的定时信号进行工作，DA转换器通过由分频器输出的定时信号输出对应于AD转换器输出的值的模拟信号。
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7.发明授权Electric power steering apparatus, control method thereof and computer readable medium 有权电动助力转向装置及其控制方法和计算机可读介质公开(公告)号：US08818636B2
公开(公告)日：2014-08-26
申请号：US13561239
申请日：2012-07-30
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。
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公开(公告)号：US08451066B2
公开(公告)日：2013-05-28
申请号：US12680935
申请日：2008-11-07
申请人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
发明人： Hideyuki Murakami , Takashi Kawai , Kouji Nabetani
IPC分类号： H03L7/085
摘要： A PLL circuit is provided with an AD converter, a DA converter to which output from the AD converter is inputted, a filter circuit filtering an output signal of the DA converter, a voltage control oscillator outputting a signal of a different frequency in accordance with an output signal from the filter circuit and a frequency divider dividing a signal which the voltage control oscillator outputs. The AD converter operates by a timing signal from the voltage control oscillator and the DA converter outputs an analog signal corresponding to a value which the AD converter outputs by the timing signal outputted from the frequency divider.
摘要翻译： PLL电路设置有AD转换器，AD转换器输入AD转换器的DA转换器，对DA转换器的输出信号进行滤波的滤波器电路，输出不同频率的信号的电压控制振荡器，根据 来自滤波电路的输出信号和分压电压控制振荡器输出的信号的分频器。 AD转换器通过来自压控振荡器的定时信号进行工作，DA转换器通过由分频器输出的定时信号输出对应于AD转换器输出的值的模拟信号。
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公开(公告)号：US20120290174A1
公开(公告)日：2012-11-15
申请号：US13561239
申请日：2012-07-30
申请人： Hideyuki MURAKAMI
发明人： Hideyuki MURAKAMI
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.
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公开(公告)号：US20120169015A1
公开(公告)日：2012-07-05
申请号：US13387322
申请日：2010-05-11
IPC分类号： F16J15/32
CPC分类号： F16J15/3228 , F16J15/3268
摘要： A lip type seal has a cartridge fitted to an inner periphery of a shaft hole, a first lip seal member, a case, a resin second lip seal member, a backup ring and an adapter, a protrusion section in a partial portion on a circumference is provided in a first flange section of the case to engage with the second lip seal member, whereby the second lip seal member is prevented from whirling with respect to the case and coming off to an inner side in a radial direction, and a projecting section in a partial portion on a circumference is provided in a flange section of the backup ring to engage with the second lip seal member, whereby the second lip seal member is prevented from whirling with respect to the backup ring and coming off to the inner side in the radial direction.
摘要翻译： 唇形密封件具有安装在轴孔的内周的盒，第一唇密封构件，壳体，树脂第二唇密封构件，支撑环和适配器，在圆周上的部分部分中的突出部 设置在所述壳体的第一凸缘部分中以与所述第二唇形密封构件接合，由此所述第二唇形密封构件被防止相对于所述壳体旋转并且在径向方向上离开到内侧，并且突出部分 在圆环的局部部分设置在支撑环的凸缘部分中以与第二唇形密封构件接合，从而防止第二唇形密封构件相对于支撑环旋转并且向内侧流动 径向。
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