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1. 发明申请

US20100294586A1 ELECTRIC POWER STEERING APPARATUS 有权
标题翻译：电动转向装置
公开(公告)号：US20100294586A1
公开(公告)日：2010-11-25
申请号：US12445743
申请日：2007-10-15
申请人： Shigeki Nagase , Takeshi Ueda , Akira Sugimoto , Kimihito Chino
发明人： Shigeki Nagase , Takeshi Ueda , Akira Sugimoto , Kimihito Chino
IPC分类号： B62D5/04
CPC分类号： B62D5/046 , H02P27/06 , H02P29/0241 , H02P2207/05
摘要： When stopping operation of an electric power steering apparatus, a motor relay is kept in an on-state even after a power supply relay is in an off-state. A drive control portion sets a target value of a d-axis current to a value other than zero and sets a target value of a q-axis current to zero, and performs a processing same as that at the time of rotating a motor. MOS-FETs contained in a motor driving circuit are controlled such that each of driving currents of the two phases or more is not zero and the brushless motor does not rotate even supplied with these driving currents. Electric charge accumulated in a capacitor is discharged via the MOS-FETs each in an on-state, a motor relay and the windings of the brushless motor. The electric charge accumulated in the capacitor may be discharged via the excitation coil of the motor relay.
摘要翻译：在停止电动转向装置的动作时，即使电源继电器处于关闭状态，电动机继电器也保持接通状态。驱动控制部将d轴电流的目标值设定为零以外的值，将q轴电流的目标值设定为零，并进行与电动机旋转时相同的处理。控制电动机驱动电路中包含的MOS-FET，使得两相或更多相的驱动电流不为零，并且无刷电动机即使被这些驱动电流提供也不旋转。电容器中累积的电荷通过MOS-FET各自在导通状态，电动机继电器和无刷电动机的绕组中放电。蓄积在电容器中的电荷可以通过电动机继电器的励磁线圈放电。

2. 发明授权

US5762159A Power steering apparatus 失效
标题翻译：动力转向装置
公开(公告)号：US5762159A
公开(公告)日：1998-06-09
申请号：US612241
申请日：1996-03-07
申请人： Hirofumi Matsuoka , Kimihito Chino
发明人： Hirofumi Matsuoka , Kimihito Chino
IPC分类号： B62D5/07 , B62D5/065 , F04B49/06 , B26D5/06
CPC分类号： B62D5/065
摘要： A power steering apparatus comprising structure for smoothing a load detection signal obtained by detecting the load of a hydraulic pump and structure for controlling the rotational speed of an electric motor for driving the hydraulic pump, wherein the control valve controls a working oil pressure by a hydraulic pump on the basis of manipulation of steering wheel, whereby the steering operation is assisted.
摘要翻译：一种动力转向装置，包括用于平滑通过检测液压泵的负载而获得的负载检测信号的结构，以及用于控制用于驱动液压泵的电动机的转速的结构，其中控制阀通过液压来控制工作油压基于操纵方向盘的泵，从而辅助转向操作。

3. 发明授权

US08037964B2 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US08037964B2
公开(公告)日：2011-10-18
申请号：US12445743
申请日：2007-10-15
申请人： Shigeki Nagase , Takeshi Ueda , Akira Sugimoto , Kimihito Chino
发明人： Shigeki Nagase , Takeshi Ueda , Akira Sugimoto , Kimihito Chino
IPC分类号： B62D5/04
CPC分类号： B62D5/046 , H02P27/06 , H02P29/0241 , H02P2207/05
摘要： When stopping operation of an electric power steering apparatus, a motor relay is kept in an on-state even after a power supply relay is in an off-state. A drive control portion sets a target value of a d-axis current to a value other than zero and sets a target value of a q-axis current to zero, and performs a processing same as that at the time of rotating a motor. MOS-FETs contained in a motor driving circuit are controlled such that each of driving currents of the two phases or more is not zero and the brushless motor does not rotate even supplied with these driving currents. Electric charge accumulated in a capacitor is discharged via the MOS-FETs each in an on-state, a motor relay and the windings of the brushless motor. The electric charge accumulated in the capacitor may be discharged via the excitation coil of the motor relay.
摘要翻译：在停止电动转向装置的动作时，即使电源继电器处于关闭状态，电动机继电器也保持接通状态。驱动控制部将d轴电流的目标值设定为零以外的值，将q轴电流的目标值设定为零，并进行与电动机旋转时相同的处理。控制电动机驱动电路中包含的MOS-FET，使得两相或更多相的驱动电流不为零，并且无刷电动机即使被这些驱动电流提供也不旋转。电容器中累积的电荷通过MOS-FET各自在导通状态，电动机继电器和无刷电动机的绕组中放电。蓄积在电容器中的电荷可以通过电动机继电器的励磁线圈放电。

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