公开(公告)号：US5592912A

公开(公告)日：1997-01-14

申请号：US405153

申请日：1995-03-16

申请人： Nobuhiko Uryu ,  Nobuyuki Hayashi

发明人： Nobuhiko Uryu ,  Nobuyuki Hayashi

IPC分类号： F02N11/00

CPC分类号： F02N11/00 ,  Y10T74/132 ,  Y10T74/137

摘要： In a starter, to improve a heat dissipation performance, an axial length from the end of a starter housing fit into a clutch housing to a starter installation surface of the clutch housing is set to be longer than an axial length from the end of a starter motor not fit into the clutch housing to the starter installation surface. Alternatively, the exposed surface area of the starter housing fit into the clutch housing is set to be larger than the exposed surface area of the portion of the starter housing not fit into the clutch housing and the starter motor. With this configuration, the starter housing can be effectively cooled by whirling air flow in the clutch housing.

摘要翻译： 在起动器中，为了提高散热性能，从起动器壳体的端部配合到离合器壳体到离合器壳体的起动器安装表面的轴向长度被设定为比起动器端部的轴向长度 电机不能装入离合器壳体到起动器安装面。 或者，装配到离合器壳体中的起动机壳体的暴露的表面积被设定为大于起动器壳体的不配合到离合器壳体和起动电动机中的部分的暴露表面积。 通过这种构造，可以通过离合器壳体中的旋转气流来有效地冷却起动器壳体。

公开(公告)号：US08544593B2

公开(公告)日：2013-10-01

申请号：US13134971

申请日：2011-06-22

申请人： Nobuhiko Uryu

发明人： Nobuhiko Uryu

IPC分类号： B26D5/08

CPC分类号： B62D5/0463 ,  B62D5/0484 ,  B62D5/0487 ,  H02P21/00 ,  H02P29/0243 ,  H02P29/032

摘要： When an inverter or a coil set of one system in a motor drive apparatus having two systems fails, a power supply relay of a failing system interrupts power supply and a control circuit gradually reduces a current supply limitation value of a normal system to zero. Then when a steering torque becomes greater than a predetermined threshold value, the control circuit increases the current supply limitation value by a predetermined amount. By reducing the current supply limitation value to zero once and then gradually increasing the current supply limitation value to generate steering assist torque, a driver will be caused to sense changes in the steering torque and surely notice occurrence of failure.

摘要翻译： 当具有两个系统的电机驱动装置中的一个系统的逆变器或线圈组故障时，故障系统的电源继电器中断电源，并且控制电路逐渐将正常系统的电流供应限制值降低到零。 然后，当转向转矩大于预定阈值时，控制电路将电流供给限制值增加预定量。 通过将电流限制值减小到零一次，然后逐渐增加电流供给限制值以产生转向辅助转矩，则将引起驾驶员感测转向转矩的变化并且确定地发生故障。

公开(公告)号：US20120152647A1

公开(公告)日：2012-06-21

申请号：US13323114

申请日：2011-12-12

申请人： Nobuhiko Uryu

发明人： Nobuhiko Uryu

IPC分类号： B62D6/10 ,  G06F19/00 ,  B62D5/04 ,  G01L3/10

CPC分类号： B62D5/0487 ,  B62D6/10 ,  G01L25/003

摘要： In a torque sensor, a torque signal and a monitoring signal have values between a first lower limit and a first upper limit. A limiting section changes the torque signal to a second lower limit when the torque signal is equal to or less than the second lower limit that is greater than the first lower limit, and changes the torque signal to a second upper limit when the torque signal is equal to or greater than the second upper limit that is less than the first upper limit. When abnormality has occurred in the torque signal, an output section transmits a first fault notification signal that is a value between the first and second lower limits or a second fault notification signal that is a value between the first and second upper limits.

摘要翻译： 在转矩传感器中，转矩信号和监视信号具有第一下限和第一上限之间的值。 当扭矩信号等于或小于大于第一下限的第二下限时，限制部分将转矩信号改变到第二下限，并且当转矩信号为扭矩信号时将转矩信号转换到第二上限 等于或大于小于第一上限的第二上限。 当扭矩信号发生异常时，输出部分发送作为第一和第二下限之间的值的第一故障通知信号或作为第一和第二上限之间的值的第二故障通知信号。

公开(公告)号：US20110316466A1

公开(公告)日：2011-12-29

申请号：US13134972

申请日：2011-06-22

申请人： Nobuhiko Uryu

发明人： Nobuhiko Uryu

IPC分类号： H02P6/12

CPC分类号： B62D5/0487 ,  B62D5/0484 ,  H02H7/08 ,  H02H7/122 ,  H02P25/22 ,  H02P27/08 ,  H02P2207/076

摘要： When failure of an inverter or a coil set of one system of a motor drive apparatus having two systems, is detected, a power supply relay of the failing system is interrupted. At the same time, a control circuit sets a same maximum current limitation value as set before detection of failure. When an IG switch is in an ON-state and a steering toque detection value exceeds a predetermined threshold value thereafter, a vibration component, which has a predetermined amplitude and frequency, is added to a current command value so that a steering wheel is vibrated in a direction of rotation so that a driver is cautioned to notice the failure surely.

摘要翻译： 当检测到具有两个系统的电机驱动装置的一个系统的逆变器或线圈组的故障时，故障系统的电源继电器被中断。 同时，控制电路设定与检测到故障之前相同的最大电流限制值。 当IG开关处于ON状态并且转向转矩检测值此后超过预定阈值时，将具有预定幅度和频率的振动分量加到电流指令值上，使得方向盘振动 旋转方向，以便驾驶员被警告以确定地注意到故障。

公开(公告)号：US20110315470A1

公开(公告)日：2011-12-29

申请号：US13134986

申请日：2011-06-22

申请人： Nobuhiko Uryu

发明人： Nobuhiko Uryu

IPC分类号： B62D5/04 ,  H02P6/12

CPC分类号： B62D5/0484 ,  B62D5/0487

摘要： When an inverter or a coil set of one system fails in a motor drive apparatus having two power supply systems, a power supply relay of a failing system is turned off. In this case, while a travel speed detection value is less than a predetermined threshold value, current supply to a motor by the other system operating normally is stopped to thereby stop driving of the motor and generate no steering assist torque. Thus, a driver will be caused to surely notice occurrence of failure.

摘要翻译： 当具有两个电源系统的电机驱动装置中的一个系统的逆变器或线圈组故障时，故障系统的电源继电器被断开。 在这种情况下，当行驶速度检测值小于预定阈值时，停止通过其他系统正常运行的电动机的电流供给，从而停止电动机的驱动并且不产生转向辅助转矩。 因此，会引起司机确定发生故障。

公开(公告)号：US20110163708A1

公开(公告)日：2011-07-07

申请号：US12984936

申请日：2011-01-05

申请人： Yasuhiko Mukai ,  Nobuhiko Uryu

发明人： Yasuhiko Mukai ,  Nobuhiko Uryu

IPC分类号： H02P25/22

CPC分类号： B62D5/0487 ,  B62D5/0403 ,  B62D5/046 ,  H02P29/032

摘要： A motor drive apparatus drives a motor by a first motor drive part and a second motor drive part. The first motor drive part includes a first inverter for supplying current to a first winding set. The second motor drive part includes a second inverter for supplying current to a second winding set. A control unit starts to supply currents to the first winding set and the second winding set at the same time after waiting for completion of all failure detection processing with respect to each of the first motor drive part and the second motor drive part.

摘要翻译： 电动机驱动装置通过第一电动机驱动部和第二电动机驱动部驱动电动机。 第一电动机驱动部包括用于向第一绕组组提供电流的第一逆变器。 第二电动机驱动部分包括用于向第二绕组组提供电流的第二逆变器。 控制单元在等待完成关于第一电动机驱动部分和第二电动机驱动部分中的每一个的所有故障检测处理之后，同时开始向第一组绕组和第二绕组组供电。

公开(公告)号：US20110156623A1

公开(公告)日：2011-06-30

申请号：US12977580

申请日：2010-12-23

申请人： Kouichi Nakamura ,  Yasuhiko Mukai ,  Nobuhiko Uryu

发明人： Kouichi Nakamura ,  Yasuhiko Mukai ,  Nobuhiko Uryu

IPC分类号： H02P21/00

CPC分类号： H02P5/74 ,  H02P21/06

摘要： In a motor drive apparatus having two power supply systems for a motor, output phase currents supplied from inverters and detected by current sensors are added. Sums of the phase currents are fed back to a 3-2 phase conversion section and converted into a d-axis current and a q-axis current. A 2-3 phase conversion section outputs the same three-phase voltage command values to the inverters. Thus, the 3-2 phase conversion section and the 2-3 phase conversion section are both reduced to 1 in number, which is less than 2 of the inverters.

摘要翻译： 在具有用于电动机的两个电源系统的电动机驱动装置中，增加了从逆变器提供并由电流传感器检测的输出相电流。 相电流的和被反馈到3-2相位转换部分并转换成d轴电流和q轴电流。 2-3相位转换部将相同的三相电压指令值输出到逆变器。 因此，3-2相位转换部和2-3相变换部的数量都减少到1个，小于2个逆变器。

公开(公告)号：US20050178609A1

公开(公告)日：2005-08-18

申请号：US11052073

申请日：2005-02-08

申请人： Nobuhiko Uryu

发明人： Nobuhiko Uryu

IPC分类号： B62D5/04

CPC分类号： B62D5/0481 ,  B62D5/049

摘要： It is an object of the present invention to provide an electrical power steering system for a vehicle, in which an abnormal condition of a motor current detecting device for a motor current is detected with high precision. A power steering control unit calculates a target assist torque based on a steering signal from a steering sensor and calculates a motor driving current based on such target assist torque. The control unit then calculates a difference between a motor current in a normal condition and a detected motor current, so that the difference is used as an offset correction amount. The control unit further calculates an upper and a lower limit of the offset correction amount depending on a detected temperature of the motor current detecting device. The control unit finally determines that the motor current detecting device is not in a normal condition, when the offset amount is not within a range between the upper and lower limits of the offset correction amount.

摘要翻译： 本发明的目的是提供一种用于车辆的电动助力转向系统，其中以高精度检测电动机电流的电动机电流检测装置的异常状态。 动力转向控制单元基于来自转向传感器的转向信号来计算目标辅助转矩，并基于该目标辅助转矩来计算电动机驱动电流。 然后，控制单元计算正常状态下的电动机电流与检测到的电动机电流之间的差，使得该差用作偏移校正量。 控制单元还根据电动机电流检测装置的检测温度进一步计算偏移校正量的上限和下限。 当偏移量不在偏移校正量的上限和下限之间的范围内时，控制单元最终确定电动机电流检测装置不处于正常状态。

公开(公告)号：US06729433B2

公开(公告)日：2004-05-04

申请号：US10316050

申请日：2002-12-11

申请人： Nobuhiko Uryu ,  Hideyuki Hayakawa ,  Kenji Morikawa

发明人： Nobuhiko Uryu ,  Hideyuki Hayakawa ,  Kenji Morikawa

IPC分类号： B62D504

CPC分类号： B62D5/0406 ,  B62D5/0409 ,  B62D5/0415

摘要： An automotive electrically-powered steering device is provided which is easy of assembly and electric connections. The steering device includes an electric motor, a motor torque transmission mechanism, a torque detector, and a motor controller which are arranged integrally as a unit. The controller includes a motor driver and a control substrate to which terminals of the motor driver are connected electrically. A steering shaft passes through a portion of the control substrate. The electrical terminals of the motor, the torque detector, and the motor driver extend in an axial direction of the steering shaft and connect electrically to the control substrate from the same side.

摘要翻译： 提供了一种易于组装和电连接的汽车电动转向装置。 转向装置包括作为一个单元一体地布置的电动机，电动机转矩传递机构，转矩检测器和电动机控制器。 控制器包括马达驱动器和控制基板，马达驱动器的端子电连接到该驱动器和控制基板。 转向轴通过控制基板的一部分。 电动机的电端子，转矩检测器和电动机驱动器沿转向轴的轴向延伸，并从同一侧与控制基板电连接。

公开(公告)号：US5927428A

公开(公告)日：1999-07-27

申请号：US768928

申请日：1996-12-18

申请人： Yasuhiro Nagao ,  Tsutomu Shiga ,  Nobuhiko Uryu ,  Yuuji Hashiba

发明人： Yasuhiro Nagao ,  Tsutomu Shiga ,  Nobuhiko Uryu ,  Yuuji Hashiba

IPC分类号： B62D5/04 ,  F16H3/62 ,  H02K7/116

CPC分类号： B62D5/043 ,  B62D5/0478

摘要： In a vehicle power steering device, a motor is turned on to rotate in one direction whether a steering wheel is turned clockwise or counterclockwise. A switching mechanism is interposed between a motor armature shaft and an output shaft to change directions of the output shaft rotation relative to the armature shaft rotation in response to turning direction of the steering wheel. The switching mechanism may include electrically controlled coupling/releasing members or mechanically controlled rotation reversing and coupling mechanisms.

摘要翻译： 在车辆动力转向装置中，无论方向盘是顺时针还是逆时针方向转动，马达都被打开以在一个方向上旋转。 切换机构设置在马达电枢轴和输出轴之间，以响应于方向盘的转动方向改变输出轴相对于电枢轴旋转的旋转方向。 切换机构可以包括电控制的联接/释放构件或机械控制的旋转反向和联接机构。