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41. 发明授权

US08086373B2 Electric power steering apparatus 失效
标题翻译：电动助力转向装置
公开(公告)号：US08086373B2
公开(公告)日：2011-12-27
申请号：US12435046
申请日：2009-05-04
申请人： Terutaka Tamaizumi , Yasunori Shintani
发明人： Terutaka Tamaizumi , Yasunori Shintani
IPC分类号： G06F19/00
CPC分类号： B62D5/049 , B62D5/0484
摘要： An electric power steering apparatus includes a steering assist section that applies assist force to a steering system of a vehicle to assist operation of a steering wheel performed by a driver. The steering assist section is actuated by a motor. When there is an abnormality in a steering torque sensor, the supply of drive power to the motor is controlled such that a converted steering angle, which is obtained by converting the rotational angle of the motor, follows a target steering angle, which is computed based on the steering angle of the steering wheel by operation performed by the driver.
摘要翻译：电动助力转向装置包括向车辆的转向系统施加辅助力以辅助由驾驶员执行的方向盘的操作的转向辅助部。转向辅助部分由马达驱动。当转向转矩传感器发生异常时，控制对电动机的驱动力的供给，使得通过转换电动机的旋转角度而获得的转换转向角遵循基于计算的目标转向角通过由驾驶员进行的操作来确定方向盘的转向角度。

42. 发明授权

US08082080B2 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US08082080B2
公开(公告)日：2011-12-20
申请号：US12476688
申请日：2009-06-02
申请人： Masayuki Kita , Terutaka Tamaizumi , Akihiko Nishimura , Shinya Aono , Jun Hasegawa , Akira Nambu
发明人： Masayuki Kita , Terutaka Tamaizumi , Akihiko Nishimura , Shinya Aono , Jun Hasegawa , Akira Nambu
IPC分类号： B62D6/00
CPC分类号： B62D5/0463 , B62D5/0466
摘要： An electric power steering (EPS) apparatus 1 includes a motor 12, an EPS actuator 10, a torque sensor 14, and an ECU 11. The EPS actuator 10 uses the motor 12 as a drive source to apply assist force to a steering system, thereby assisting a steering operation. The torque sensor 14 detects a steering torque τ of the steering system. The ECU 11 controls the operation of the EPS actuator 10. Based on the steering torque τ detected by the torque sensor 14, the ECU 11 computes a basic shift amount εts_b of the assist force applied to the steering system. The ECU 11 determines which one of returning, holding, and turning is the state of the steering operation. When the state of the steering operation is returning or holding, the ECU 11 executes compensation control for correcting the steering torque τ, which is used in the computation of the basic shift amount εts_b of the assist force, thereby increasing the assist force applied to the steering system. The ECU 11 subjects the steering torque shift control amount εts to a filtering process using a low pass filter, thereby inhibiting the steering torque shift control amount εts from sharply changing. When the state of the steering operation is turning, the ECU 11 changes a filter constant of the low pass filter so as to reduce the filtering effect.
摘要翻译：电动助力转向（EPS）装置1包括电动机12，EPS致动器10，转矩传感器14和ECU 11. EPS致动器10使用电动机12作为驱动源向转向系统施加辅助力，从而辅助转向操作。转矩传感器14检测转向系统的转向转矩τ。 ECU11控制EPS致动器10的动作。根据由转矩传感器14检测出的转向转矩τ，ECU11计算施加于转向系统的辅助力的基本位移量＆amp; ts_b。 ECU11确定返回，保持和转动中的哪一个是转向操作的状态。当转向操作状态返回或保持时，ECU11执行用于校正辅助力的基本位移量＆amp; ts_b的计算中使用的转向转矩τ的补偿控制，从而增加施加的辅助力到转向系统。 ECU11使用低通滤波器对转向转矩转换控制量进行滤波处理，从而抑制转向转矩转换控制量的急剧变化。当转向操作状态转动时，ECU11改变低通滤波器的滤波常数，从而降低滤波效果。

43. 发明申请

US20100235051A1 MOTOR CONTROL UNIT AND MOTOR CONTROL UNIT FOR VEHICLE STEERING APPARATUS 审中-公开
标题翻译：用于车辆转向装置的电动机控制单元和电机控制单元
公开(公告)号：US20100235051A1
公开(公告)日：2010-09-16
申请号：US12721855
申请日：2010-03-11
申请人： Yuji KARIATSUMARI , Satoshi SHINODA , Hayato KOMATSU , Terutaka TAMAIZUMI
发明人： Yuji KARIATSUMARI , Satoshi SHINODA , Hayato KOMATSU , Terutaka TAMAIZUMI
IPC分类号： G06F19/00 , H02P6/08
CPC分类号： H02P6/183 , B62D5/046 , H02P21/14 , H02P21/16 , H02P21/18 , H02P21/22
摘要： A motor control unit controls a motor including a rotor and a stator facing the rotor. A current drive unit drives the motor at an axis current value of a rotating coordinate system that rotates in accordance with a control angle that is a rotational angle used in a control. An addition angle calculation unit calculates an addition angle to be added to the control angle. A control angle calculation unit obtains, at every predetermined calculation cycle, a present value of the control angle by adding the addition angle that is calculated by the addition angle calculation unit to an immediately preceding value of the control angle. A torque detection unit detects a torque that is other than a motor torque and that is applied to a drive target driven by the motor. A command torque setting unit sets a command torque to be applied to the drive target. An addition angle correction unit compares the command torque set by the command torque setting unit with the detected torque detected by the torque detection unit, and corrects the addition angle based on a comparison result.
摘要翻译：马达控制单元控制包括转子和面向转子的定子的马达。当前的驱动单元以旋转坐标系的轴电流值驱动电机，该旋转坐标系根据在控制中使用的旋转角度的控制角度旋转。相加角计算单元计算要添加到控制角度的相加角度。控制角计算单元通过将由相加角计算单元计算出的相加角相加到控制角度的先前值，在每个预定计算周期获得控制角的当前值。转矩检测单元检测除了电动机转矩之外并且施加到由电动机驱动的驱动目标的转矩。指令转矩设定单元设定要施加到驱动目标的指令转矩。相加角校正单元将由指令转矩设定单元设定的指令转矩与由转矩检测单元检测出的检测转矩进行比较，并且基于比较结果校正相加角。

44. 发明申请

US20100083744A1 LOAD DEVICE FOR EVALUATING PERFORMANCE OF STEERING DEVICE 审中-公开
标题翻译：用于评估转向装置性能的装载装置
公开(公告)号：US20100083744A1
公开(公告)日：2010-04-08
申请号：US12448433
申请日：2007-12-12
申请人： Hiroshi Obata , Terutaka Tamaizumi
发明人： Hiroshi Obata , Terutaka Tamaizumi
IPC分类号： G01M17/06
CPC分类号： G01M17/06
摘要： An inventive load apparatus for performance evaluation of a steering system has a simple construction and yet is capable of faithfully reproducing a tire load observed when the steering system is actually mounted on a motor vehicle. A compression load spring device (12) includes a piston (18) which is axially movable within a cylinder (17), and a pair of springs (20, 21) which resiliently urge the piston (18) to hold the piston (18) in a force balanced state at a neutral position in the cylinder. The piston (18) is connected to a rod (19) having one end (19a) serving as a load output portion. A load outputted from the load output portion (19a) is multiplied by a preset factor by means of a lever mechanism (13), and the resulting load is applied to the steering system (30).
摘要翻译：用于转向系统的性能评估的本发明的负载装置具有简单的结构，并且能够忠实地再现当转向系统实际安装在机动车辆上时观察到的轮胎负载。压缩负载弹簧装置（12）包括可在气缸（17）内轴向移动的活塞（18）和弹性地推动活塞（18）以保持活塞（18）的一对弹簧（20,21）在气缸中的中性位置处的力平衡状态。活塞（18）连接到具有用作负载输出部分的一端（19a）的杆（19）。从负载输出部分（19a）输出的负载通过杠杆机构（13）乘以预设系数，并将所得到的负载施加到转向系统（30）。

45. 发明申请

US20090299575A1 ELECTRIC POWER STEERING APPARATUS 有权
标题翻译：电动转向装置
公开(公告)号：US20090299575A1
公开(公告)日：2009-12-03
申请号：US12476688
申请日：2009-06-02
申请人： Masayuki KITA , Terutaka Tamaizumi , Akihiko Nishimura , Shinya Aono , Jun Hasegawa , Akira Nambu
发明人： Masayuki KITA , Terutaka Tamaizumi , Akihiko Nishimura , Shinya Aono , Jun Hasegawa , Akira Nambu
IPC分类号： B62D6/00 , G06F19/00
CPC分类号： B62D5/0463 , B62D5/0466
摘要： An electric power steering (EPS) apparatus 1 includes a motor 12, an EPS actuator 10, a torque sensor 14, and an ECU 11. The EPS actuator 10 uses the motor 12 as a drive source to apply assist force to a steering system, thereby assisting a steering operation. The torque sensor 14 detects a steering torque τ of the steering system. The ECU 11 controls the operation of the EPS actuator 10. Based on the steering torque τ detected by the torque sensor 14, the ECU 11 computes a basic shift amount εts_b of the assist force applied to the steering system. The ECU 11 determines which one of returning, holding, and turning is the state of the steering operation. When the state of the steering operation is returning or holding, the ECU 11 executes compensation control for correcting the steering torque τ, which is used in the computation of the basic shift amount εts_b of the assist force, thereby increasing the assist force applied to the steering system. The ECU 11 subjects the steering torque shift control amount εts to a filtering process using a low pass filter, thereby inhibiting the steering torque shift control amount εts from sharply changing. When the state of the steering operation is turning, the ECU 11 changes a filter constant of the low pass filter so as to reduce the filtering effect.
摘要翻译：电动助力转向（EPS）装置1包括电动机12，EPS致动器10，转矩传感器14和ECU 11. EPS致动器10使用电动机12作为驱动源向转向系统施加辅助力，从而辅助转向操作。扭矩传感器14检测转向系统的转向转矩τ。 ECU11控制EPS致动器10的动作。根据由转矩传感器14检测出的转向转矩τ1，ECU11计算施加于转向系统的辅助力的基本位移量epsilonts_b。 ECU11确定返回，保持和转动中的哪一个是转向操作的状态。当转向操作的状态返回或保持时，ECU11执行用于校正辅助力的基本位移量epsilonts_b的计算中使用的转向转矩τ的补偿控制，从而增加施加到转向操作的辅助力转向系统。 ECU11使用低通滤波器对转向转矩转换控制量的epsil字符进行滤波处理，由此抑制转向转矩转换控制量的epsic字符急剧变化。当转向操作状态转动时，ECU11改变低通滤波器的滤波常数，从而降低滤波效果。

46. 发明申请

US20080217096A1 ELECTRIC POWER STEERING APPARATUS 有权
标题翻译：电动转向装置
公开(公告)号：US20080217096A1
公开(公告)日：2008-09-11
申请号：US11860058
申请日：2007-09-24
申请人： Hiroshi SUZUKI , Terutaka Tamaizumi , Hirozumi Eki , Kenji Nishimura
发明人： Hiroshi SUZUKI , Terutaka Tamaizumi , Hirozumi Eki , Kenji Nishimura
IPC分类号： B62D5/04
CPC分类号： B62D5/0463 , B62D6/003 , B62D6/008
摘要： An ECU determines whether the orientation of the vehicle is deflecting at the time of braking. In addition, in a case where it is determined that the orientation of the vehicle is deflecting, the ECU controls operation of an EPS actuator in order to reduce the assist force provided to the steering system.
摘要翻译： ECU确定在制动时车辆的方向是否偏转。此外，在确定车辆的朝向偏转的情况下，ECU控制EPS致动器的操作，以便减小提供给转向系统的辅助力。

47. 发明申请

US20050182541A1 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US20050182541A1
公开(公告)日：2005-08-18
申请号：US11057014
申请日：2005-02-11
申请人： Terutaka Tamaizumi , Shinya Aono
发明人： Terutaka Tamaizumi , Shinya Aono
IPC分类号： B62D5/04 , B62D6/00
CPC分类号： B62D5/0463 , B62D5/046 , B62D5/0472
摘要： An electric power steering apparatus has a motor controlled so as to generate steering assist power according to the steering torque required to operate a steering wheel. As a result of correction of the output of the motor in accordance with a value correlating with the rotation angular velocity correspondence value of the steering wheel, in the frequency response characteristic represented by the steering frequency of the steering wheel and the amplitude ratio of the steering torque relative to the steering angle of the steering wheel, the amplitude ratio is set within a setting range, at least within the steering frequency range when a person operates the steering wheel. As a result of correction of the output of the motor in accordance with a value directly correlating with the change velocity correspondence value of the steering torque, in the frequency response characteristic represented by the frequency of the disturbance torque input from the road surface to the steering system via vehicle wheels and the amplitude ratio of the steering torque relative to the disturbance torque, the amplitude ratio becomes smaller at the resonance frequency.
摘要翻译：电动助力转向装置具有电动机，以便根据操作方向盘所需的转向转矩产生转向辅助动力。根据与方向盘的旋转角速度对应值相关联的值校正马达的输出的结果，在由方向盘的转向频率表示的频率响应特性和转向的振幅比中相对于方向盘的转向角的转矩，当人操作方向盘时，至少在转向频率范围内，将振幅比设定在设定范围内。作为根据与转向转矩的变化速度对应值直接相关的值来校正电动机的结果，在由从路面输入到转向的干扰转矩的频率所表示的频率响应特性中系统通过车轮和转向转矩相对于扰动转矩的幅度比，振幅比在共振频率下变小。

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