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    Pump apparatus and power steering
    1.
    发明授权
    Pump apparatus and power steering 失效
    泵装置和动力转向

    公开(公告)号：US07722342B2

    公开(公告)日：2010-05-25

    申请号：US11684085

    申请日：2007-03-09

    申请人： Isamu Tsubono ,  Mitsuo Sasaki ,  Toru Takahashi ,  Masaaki Busujima ,  Masakazu Kurata ,  Yasuhito Nakakuki

    发明人： Isamu Tsubono ,  Mitsuo Sasaki ,  Toru Takahashi ,  Masaaki Busujima ,  Masakazu Kurata ,  Yasuhito Nakakuki

    IPC分类号： F01C1/02

    CPC分类号： F04C2/102 ,  F04C2/084 ,  F04C2/18 ,  F04C15/0019 ,  F04C15/0026 ,  F04C2230/91

    摘要： In order to realize cost reduction in a gear pump apparatus by reducing form accuracy of a gear while securing pump performance, a running-in coating is provided on a tooth sliding contact portion when forming a confinement area in at least one of gears of the gear pump apparatus. By this feature, the running-in coating is gradually worn away and deformed according to rotary drive of the pump, and thus it is possible to obtain an optimal gear form in meshing combinations of the gears. Further, it is possible to reduce leakage inside the pump to secure the pump performance even if the form accuracy of the gear is reduced for the sake of the cost reduction.

    摘要翻译： 为了通过在确保泵的性能的同时降低齿轮的形状精度来实现齿轮泵装置的成本降低，当在齿轮的齿轮中的至少一个齿轮中形成限制区域时，在齿滑动接触部分上设置进入涂层 泵装置。 通过该特征，随着泵的旋转驱动，流入式涂层逐渐磨损和变形，从而可以获得齿轮的啮合组合中的最佳齿轮形状。 此外，为了降低成本，即使齿轮的形状精度降低，也可以减小泵内部的泄漏以确保泵的性能。

    Pump Apparatus and Power Steering
    2.
    发明申请
    Pump Apparatus and Power Steering 失效
    泵装置和动力转向

    公开(公告)号：US20070253855A1

    公开(公告)日：2007-11-01

    申请号：US11684085

    申请日：2007-03-09

    申请人： Isamu TSUBONO ,  Mitsuo Sasaki ,  Toru Takahashi ,  Masaaki Busujima ,  Masakazu Kurata ,  Yasuhito Nakakuki

    发明人： Isamu TSUBONO ,  Mitsuo Sasaki ,  Toru Takahashi ,  Masaaki Busujima ,  Masakazu Kurata ,  Yasuhito Nakakuki

    IPC分类号： F04C2/10

    CPC分类号： F04C2/102 ,  F04C2/084 ,  F04C2/18 ,  F04C15/0019 ,  F04C15/0026 ,  F04C2230/91

    摘要： In order to realize cost reduction in a gear pump apparatus by reducing form accuracy of a gear while securing pump performance, a running-in coating is provided on a tooth sliding contact portion when forming a confinement area in at least one of gears of the gear pump apparatus. By this feature, the running-in coating is gradually worn away and deformed according to rotary drive of the pump, and thus it is possible to obtain an optimal gear form in meshing combinations of the gears. Further, it is possible to reduce leakage inside the pump to secure the pump performance even if the form accuracy of the gear is reduced for the sake of the cost reduction.

    摘要翻译： 为了通过在确保泵的性能的同时降低齿轮的形状精度来实现齿轮泵装置的成本降低，当在齿轮的齿轮中的至少一个齿轮中形成限制区域时，在齿滑动接触部分上设置进入涂层 泵装置。 通过该特征，随着泵的旋转驱动，流入式涂层逐渐磨损和变形，从而可以获得齿轮啮合组合中的最佳齿轮形状。 此外，为了降低成本，即使齿轮的形状精度降低，也可以减小泵内部的泄漏以确保泵的性能。

    Power steering system
    3.
    发明申请
    Power steering system 有权
    动力转向系统

    公开(公告)号：US20070209859A1

    公开(公告)日：2007-09-13

    申请号：US11654676

    申请日：2007-01-18

    申请人： Ayumu Miyajima ,  Isamu Tsubono ,  Takaomi Nishigaito ,  Toru Takahashi ,  Mitsuo Sasaki ,  Toshimitsu Sakaki ,  Tatsuo Matsumura

    发明人： Ayumu Miyajima ,  Isamu Tsubono ,  Takaomi Nishigaito ,  Toru Takahashi ,  Mitsuo Sasaki ,  Toshimitsu Sakaki ,  Tatsuo Matsumura

    IPC分类号： B62D5/06

    CPC分类号： B62D5/065

    摘要： In a power steering system comprising a power cylinder for assisting a steering power of a steering mechanism, a hydraulic pump for supplying a hydraulic pressure to the power cylinder, a first oil passage and a second oil passage connecting the power cylinder and the hydraulic pump respectively, a motor for driving the hydraulic pump, and power steering control means for calculating a command value to the motor based on the steering torque, a flow rate of the working oil supplied from a high-pressure side oil passage to a low-pressure side oil passage is restrained at the transition from the end of the steering state (lock end) of the steering mechanism to the returning. The flow-rate restraint increasingly corrects a driving current of the motor in the steering direction or limits the flow rate of the working oil.

    摘要翻译： 在一种动力转向系统中，包括用于辅助转向机构的转向动力的动力缸，用于向动力缸提供液压的液压泵，分别连接动力缸和液压泵的第一油路和第二油路 用于驱动液压泵的电动机和用于根据转向转矩计算对电动机的指令值的动力转向控制装置，从高压侧油路供给到低压侧的工作油的流量 在从转向机构的转向状态（锁定结束）到返回的转变的过渡期间，油路被限制。 流量限制越来越多地纠正马达在转向方向上的驱动电流或限制工作油的流量。

    Power steering system
    4.
    发明授权
    Power steering system 有权
    动力转向系统

    公开(公告)号：US07648003B2

    公开(公告)日：2010-01-19

    申请号：US11654676

    申请日：2007-01-18

    申请人： Ayumu Miyajima ,  Isamu Tsubono ,  Takaomi Nishigaito ,  Toru Takahashi ,  Mitsuo Sasaki ,  Toshimitsu Sakaki ,  Tatsuo Matsumura

    发明人： Ayumu Miyajima ,  Isamu Tsubono ,  Takaomi Nishigaito ,  Toru Takahashi ,  Mitsuo Sasaki ,  Toshimitsu Sakaki ,  Tatsuo Matsumura

    IPC分类号： B62D5/06

    CPC分类号： B62D5/065

    摘要： In a power steering system comprising a power cylinder for assisting a steering power of a steering mechanism, a hydraulic pump for supplying a hydraulic pressure to the power cylinder, a first oil passage and a second oil passage connecting the power cylinder and the hydraulic pump respectively, a motor for driving the hydraulic pump, and power steering control means for calculating a command value to the motor based on the steering torque, a flow rate of the working oil supplied from a high-pressure side oil passage to a low-pressure side oil passage is restrained at the transition from the end of the steering state (lock end) of the steering mechanism to the returning. The flow-rate restraint increasingly corrects a driving current of the motor in the steering direction or limits the flow rate of the working oil.

    摘要翻译： 在一种动力转向系统中，包括用于辅助转向机构的转向动力的动力缸，用于向动力缸提供液压的液压泵，分别连接动力缸和液压泵的第一油路和第二油路 用于驱动液压泵的电动机和用于根据转向转矩计算对电动机的指令值的动力转向控制装置，从高压侧油路供给到低压侧的工作油的流量 在从转向机构的转向状态（锁定结束）到返回的转变的过渡期间，油路被限制。 流量限制越来越多地纠正马达在转向方向上的驱动电流或限制工作油的流量。

    Power steering system
    5.
    发明申请
    Power steering system 失效
    动力转向系统

    公开(公告)号：US20060254850A1

    公开(公告)日：2006-11-16

    申请号：US11430085

    申请日：2006-05-09

    申请人： Toshimitsu Sakaki ,  Masakazu Kurata ,  Toru Takahashi

    发明人： Toshimitsu Sakaki ,  Masakazu Kurata ,  Toru Takahashi

    IPC分类号： B62D5/06

    CPC分类号： B62D5/065 ,  B62D5/064

    摘要： A power steering system includes a hydraulic power cylinder having a first and a second hydraulic chambers, for assisting a steering force of a steering mechanism, a first and a second oil passages respectively connected to the first and second hydraulic chambers, a reversible pump discharging operating oil and providing oil pressure to the hydraulic power cylinder through the first and second oil passages, and a motor connected to the reversible pump and rotating the reversible pump in normal and reverse directions. A steering load detection unit detects a steering load of a steering wheel for steering of the steered road wheels, and a motor control unit outputs a control signal to the motor to bring an actual oil pressure generated by the reversible pump closer to a desired oil pressure determined based on the detected steering load. A discharge amount per rotation of the reversible pump is smaller than or equal to 5 cc.

    摘要翻译： 动力转向系统包括具有第一和第二液压室的液压动力缸，用于辅助转向机构的转向力，分别连接到第一和第二液压室的第一和第二油路， 并通过第一和第二油路向液压动力缸提供油压，以及连接到可逆泵并且沿正向和反向旋转可逆泵的马达。 转向负载检测单元检测用于转向车轮的转向的方向盘的转向负载，电动机控制单元向电动机输出控制信号，以使由可逆泵产生的实际油压更接近期望的油压 基于检测到的转向负载确定。 可逆泵的每旋转的排出量小于或等于5cc。

    Power steering system
    6.
    发明授权
    Power steering system 失效
    动力转向系统

    公开(公告)号：US07665569B2

    公开(公告)日：2010-02-23

    申请号：US11430085

    申请日：2006-05-09

    申请人： Toshimitsu Sakaki ,  Masakazu Kurata ,  Toru Takahashi

    发明人： Toshimitsu Sakaki ,  Masakazu Kurata ,  Toru Takahashi

    IPC分类号： B62D5/06

    CPC分类号： B62D5/065 ,  B62D5/064

    摘要： A power steering system includes a hydraulic power cylinder having a first and a second hydraulic chambers, for assisting a steering force of a steering mechanism, a first and a second oil passages respectively connected to the first and second hydraulic chambers, a reversible pump discharging operating oil and providing oil pressure to the hydraulic power cylinder through the first and second oil passages, and a motor connected to the reversible pump and rotating the reversible pump in normal and reverse directions. A steering load detection unit detects a steering load of a steering wheel for steering of the steered road wheels, and a motor control unit outputs a control signal to the motor to bring an actual oil pressure generated by the reversible pump closer to a desired oil pressure determined based on the detected steering load. A discharge amount per rotation of the reversible pump is smaller than or equal to 5 cc.

    摘要翻译： 动力转向系统包括具有第一和第二液压室的液压动力缸，用于辅助转向机构的转向力，分别连接到第一和第二液压室的第一和第二油路， 并通过第一和第二油路向液压动力缸提供油压，以及连接到可逆泵并且沿正向和反向旋转可逆泵的马达。 转向负载检测单元检测用于转向车轮的转向的方向盘的转向负载，电动机控制单元向电动机输出控制信号，以使由可逆泵产生的实际油压更接近期望的油压 基于检测到的转向负载确定。 可逆泵的每旋转的排出量小于或等于5cc。

    Power steering apparatus
    7.
    发明授权
    Power steering apparatus 失效
    动力转向装置

    公开(公告)号：US07735596B2

    公开(公告)日：2010-06-15

    申请号：US11400320

    申请日：2006-04-10

    申请人： Mitsuo Sasaki ,  Toru Takahashi

    发明人： Mitsuo Sasaki ,  Toru Takahashi

    IPC分类号： B62D5/00

    CPC分类号： B62D5/065

    摘要： A power steering apparatus includes a hydraulic power cylinder, and a reversible pump driven by a motor and connected by left and right fluid passages with left and right pressure chambers of the power cylinder. The first and second fluid passages are so arranged that pressure losses in the first and second passages are substantially equal to each other.

    摘要翻译： 动力转向装置包括液压动力缸和由电动机驱动并由左右流体通道与动力缸的左右压力室连接的可逆泵。 第一和第二流体通道被布置成使得第一和第二通道中的压力损失基本相等。

    Power steering apparatus
    8.
    发明申请
    Power steering apparatus 失效
    动力转向装置

    公开(公告)号：US20060237256A1

    公开(公告)日：2006-10-26

    申请号：US11400320

    申请日：2006-04-10

    申请人： Mitsuo Sasaki ,  Toru Takahashi

    发明人： Mitsuo Sasaki ,  Toru Takahashi

    IPC分类号： B62D5/00

    CPC分类号： B62D5/065

    摘要： A power steering apparatus includes a hydraulic power cylinder, and a reversible pump driven by a motor and connected by left and right fluid passages with left and right pressure chambers of the power cylinder. The first and second fluid passages are so arranged that pressure losses in the first and second passages are substantially equal to each other.

    摘要翻译： 动力转向装置包括液压动力缸和由电动机驱动并由左右流体通道与动力缸左右压力室连接的可逆泵。 第一和第二流体通道被布置成使得第一和第二通道中的压力损失基本相等。

    VEHICULAR STEERING CONTROL APPARATUS AND METHOD
    10.
    发明申请
    VEHICULAR STEERING CONTROL APPARATUS AND METHOD 审中-公开
    车辆转向控制装置及方法

    公开(公告)号：US20100250067A1

    公开(公告)日：2010-09-30

    申请号：US12729808

    申请日：2010-03-23

    申请人： Tatsuo Matsumura ,  Mitsuo Sasaki ,  Toru Takahashi

    发明人： Tatsuo Matsumura ,  Mitsuo Sasaki ,  Toru Takahashi

    IPC分类号： G06F19/00 ,  H02P6/10 ,  H02P21/14 ,  B62D6/00

    CPC分类号： B62D5/046 ,  B62D5/0463 ,  H02P6/10 ,  H02P21/16 ,  H02P27/085

    摘要： In vehicular steering control apparatus and method, a carrier frequency of a PWM control signal to drive an electric motor on a basis of the manipulated variable of the electric motor is controlled and the carrier frequency is set to at least two predetermined set frequencies in accordance with at least one of a driving state of the electric motor and a traveling state of the vehicle, one of the predetermined set frequencies being set to reduce noises in the inverter and the other of the predetermined set frequencies being set to reduce a switching loss in the inverter. For example, the carrier frequency is set to be lowered to the other of the predetermined set frequencies in a case where a rotational speed of the electric motor is driven in a rotational speed region (A2) higher than that in a constant torque region (A1).

    摘要翻译： 在车辆转向控制装置和方法中，控制基于电动机的操作变量来驱动电动机的PWM控制信号的载波频率，并根据载波频率设定为至少两个预定的设定频率 所述电动机的驱动状态和所述车辆的行驶状态中的至少一个，所述预定设定频率中的一个被设定为减少所述逆变器中的噪声，并且所述预定设定频率中的另一个被设定为减小所述电动机的开关损耗 逆变器。 例如，在电动机的旋转速度比在恒定转矩区域（A1）的转速区域（A2）高的驱动区域（A2）的情况下，载波频率被设定为降低到预定的设定频率的另一个 ）。