公开(公告)号：US06929090B2

公开(公告)日：2005-08-16

申请号：US10996827

申请日：2004-11-24

Applicant: Hiroshi Furumi ,  Osamu Tsurumiya ,  Kazuhiko Inaba ,  Hisao Asaumi ,  Yoshio Kakizaki ,  Hirokazu Kitazawa ,  Tomoaki Sugano ,  Shinji Suto ,  Hiroaki Horii ,  Fumihiro Morishita ,  Junichi Yoshida

Inventor： Hiroshi Furumi ,  Osamu Tsurumiya ,  Kazuhiko Inaba ,  Hisao Asaumi ,  Yoshio Kakizaki ,  Hirokazu Kitazawa ,  Tomoaki Sugano ,  Shinji Suto ,  Hiroaki Horii ,  Fumihiro Morishita ,  Junichi Yoshida

IPC: B62D5/04 ,  H02P6/04

CPC classification number: B62D5/04 ,  B62D5/0409 ,  B62D5/0421 ,  B62D5/046 ,  B62D5/0463 ,  B62D5/0484 ,  B62D5/0487 ,  H02P6/04

Abstract: An electric power steering apparatus with a plurality of motors for applying a force to steering road wheels in a steering direction with mechanism which applies an increase in allocation of auxiliary steering force to an operating motor when at least one of the motors has failed.

Abstract translation: 一种具有多个电动机的电动助力转向装置，所述多个电动机用于在至少一个所述电动机发生故障时使辅助转向力分配增加到操作电动机的机构在转向方向上向转向路轮施加力。

公开(公告)号：US08972113B2

公开(公告)日：2015-03-03

申请号：US13881308

申请日：2011-10-26

Applicant: Junichi Seto ,  Kazuhiko Inaba ,  Norio Yamazaki ,  Kouji Nakamura ,  Satoshi Kawabe

Inventor： Junichi Seto ,  Kazuhiko Inaba ,  Norio Yamazaki ,  Kouji Nakamura ,  Satoshi Kawabe

IPC: A01B69/00 ,  B62D6/00 ,  B62D11/00 ,  B62D12/00 ,  B63G8/20 ,  B63H25/04 ,  G05D1/00 ,  G06F7/00 ,  G06F17/00 ,  G06F19/00 ,  B62D5/04

CPC classification number: B62D5/0472 ,  B62D5/0469

Abstract: Provided is an electric power steering system that prevents the oscillation of the steering wheel at each steering stroke end. If the steering stroke end flag Fse is 1 or if the determination result is Yes in step S8, the EPS-ECU (21) determines if the right steering flag (Fdrc) is 1 in step S10. If the determination result is Yes, it is then determined if the steering torque difference base value (Dtsb) is positive in step S11. If the determination result of step S11 is Yes, the EPS-ECU (21) uses the steering torque difference base value (Dtsb) as the steering torque difference (Dts) in step S12. If the determination result is No, the steering torque difference (Dts) is given by a value 0 in step S13, and the control process is concluded.

Abstract translation: 提供了一种电动助力转向系统，其防止方向盘在每个转向行程末端的振荡。 如果转向行程结束标志Fse为1，或者如果在步骤S8中确定结果为是，则在步骤S10中，EPS-ECU（21）确定右转向标志（Fdrc）是否为1。 如果确定结果为是，则在步骤S11中确定转向转矩差基准值（Dtsb）是否为正。 如果步骤S11的确定结果为是，则在步骤S12中，EPS-ECU（21）使用转向转矩差基准值（Dtsb）作为转向转矩差（Dts）。 如果确定结果为否，则在步骤S13中转向转矩差（Dts）由值0给出，并且控制过程结束。

公开(公告)号：US07014008B2

公开(公告)日：2006-03-21

申请号：US10608524

申请日：2003-06-24

Applicant: Hiroshi Furumi ,  Osamu Tsurumiya ,  Kazuhiko Inaba ,  Hisao Asaumi ,  Yoshio Kakizaki ,  Hirokazu Kitazawa ,  Tomoaki Sugano ,  Shinji Suto ,  Hiroaki Horii ,  Fumihiro Morishita ,  Junichi Yoshida

Inventor： Hiroshi Furumi ,  Osamu Tsurumiya ,  Kazuhiko Inaba ,  Hisao Asaumi ,  Yoshio Kakizaki ,  Hirokazu Kitazawa ,  Tomoaki Sugano ,  Shinji Suto ,  Hiroaki Horii ,  Fumihiro Morishita ,  Junichi Yoshida

IPC: B62D5/04

CPC classification number: B62D5/04 ,  B62D5/0409 ,  B62D5/0421 ,  B62D5/046 ,  B62D5/0463 ,  B62D5/0484 ,  B62D5/0487 ,  H02P6/04

Abstract: A motor driving method for a steering apparatus for applying an auxiliary steering force to a steering system with two motors. When the two motors are driven, a first one of the two motors is operated first. Thereafter, the other, second motor is driven, whereby smooth steering is effected.

Abstract translation: 一种用于向具有两个电动机的转向系统施加辅助转向力的转向装置的电动机驱动方法。 当两个电动机被驱动时，首先操作两个电动机中的第一个。 此后，另一个第二电动机被驱动，从而实现平稳的转向。

公开(公告)号：US06971473B2

公开(公告)日：2005-12-06

申请号：US10997705

申请日：2004-11-24

Applicant: Hiroshi Furumi ,  Osamu Tsurumiya ,  Kazuhiko Inaba ,  Hisao Asaumi ,  Yoshio Kakizaki ,  Hirokazu Kitazawa ,  Tomoaki Sugano ,  Shinji Suto ,  Hiroaki Horii ,  Fumihiro Morishita ,  Junichi Yoshida

Inventor： Hiroshi Furumi ,  Osamu Tsurumiya ,  Kazuhiko Inaba ,  Hisao Asaumi ,  Yoshio Kakizaki ,  Hirokazu Kitazawa ,  Tomoaki Sugano ,  Shinji Suto ,  Hiroaki Horii ,  Fumihiro Morishita ,  Junichi Yoshida

IPC: B62D5/04 ,  H02P6/04

CPC classification number: B62D5/04 ,  B62D5/0409 ,  B62D5/0421 ,  B62D5/046 ,  B62D5/0463 ,  B62D5/0484 ,  B62D5/0487 ,  H02P6/04

Abstract: Steering apparatus for transmitting a driving force of a motor through a gear mechanism to a rack shaft of a steering system and applying the driving force to steering road wheels in a steering direction. The apparatus has first and second motors. In the transmission of driving forces from output shafts of the first and second motors to the rack shaft, the phases of the two motors are essentially staggered by 180 degree.

Abstract translation: 用于通过齿轮机构将电动机的驱动力传递到转向系统的齿条轴并且在转向方向上对转向路轮施加驱动力的转向装置。 该装置具有第一和第二电动机。 在从第一和第二电动机的输出轴到齿条轴的驱动力的传递中，两个电动机的相位基本上是180度的交错。

公开(公告)号：US09802644B2

公开(公告)日：2017-10-31

申请号：US13990346

申请日：2011-11-22

Applicant: Kouji Nakamura ,  Kazuhiko Inaba ,  Shigenobu Sekiya ,  Tomohiro Morikami ,  Junichi Seto ,  Satoshi Kawabe ,  Norio Yamazaki

Inventor： Kouji Nakamura ,  Kazuhiko Inaba ,  Shigenobu Sekiya ,  Tomohiro Morikami ,  Junichi Seto ,  Satoshi Kawabe ,  Norio Yamazaki

IPC: B62D6/00 ,  B62D5/04

CPC classification number: B62D6/00 ,  B62D5/0463 ,  B62D6/008

Abstract: An electronic power steering apparatus for a vehicle having a steering mechanism to generate a steering assisting force includes: a steering angle sensor; a steering torque sensor; a target steering torque setting unit for setting a target steering torque based on the detected steering angle; a torque deviation computing unit for computing a torque deviation between the target steering torque and the detected steering torque; a first target current value computing unit for computing a first target current value for generating a steering assisting force by the motor based on the computed torque deviation; and a vehicle speed sensitivity adjusting unit that adjusts the first target current value, at least corresponding to a detected vehicle speed, and outputs the adjusted first current value as a second target current value. The motor control unit controls the motor to generate the steering assisting force based on the second target current value.

公开(公告)号：US20120203430A1

公开(公告)日：2012-08-09

申请号：US13501233

申请日：2010-10-12

Applicant: Yuichi Shimada ,  Kazuhiko Inaba ,  Taku Natsume ,  Masaya Kusatani ,  Masanori Takagi ,  Toshiharu Akashi ,  Kouji Nakamura ,  Akio Ueno

Inventor： Yuichi Shimada ,  Kazuhiko Inaba ,  Taku Natsume ,  Masaya Kusatani ,  Masanori Takagi ,  Toshiharu Akashi ,  Kouji Nakamura ,  Akio Ueno

IPC: B62D6/02 ,  B62D6/06 ,  B62D6/04

CPC classification number: B62D6/007

Abstract: Electric power steering system comprises an electric motor (9) for producing a steering assist force reducing a steering effort of a vehicle operator and a control unit (21) determining a control value for the electric motor, the control unit being configured to determine the control value by selecting a map representing a relationship between a vehicle state variable and a control value for each of a plurality of control modes. When switching control modes, the control unit gradually changes the control value from that obtained from a map corresponding to a preceding control mode to that of a following control mode. A different time period of gradual transition from the preceding control mode to the following control mode is selected depending on those control modes.

Abstract translation: 电动助力转向系统包括用于产生减轻车辆操作者的转向力的转向辅助力的电动机（9）和确定电动机的控制值的控制单元（21），该控制单元被配置为确定控制 通过选择表示多个控制模式中的每一个的车辆状态变量和控制值之间的关系的映射的值。 当切换控制模式时，控制单元从对应于先前控制模式的映射获得的控制值逐渐改变为跟随控制模式的控制值。 根据这些控制模式，选择从前一控制模式到后续控制模式的逐渐转变的不同时间段。

公开(公告)号：US20060055139A1

公开(公告)日：2006-03-16

申请号：US10522305

申请日：2003-07-02

Applicant: Hiroshi Furumi ,  Osamu Tsurumiya ,  Hiroshi Ichimura ,  Kazuhiko Inaba ,  Katsuyuki Miyashita ,  Takahiro Yaginuma ,  Tomoaki Sugano ,  Hirokazu Kitazawa ,  Fumihiro Morishita

Inventor： Hiroshi Furumi ,  Osamu Tsurumiya ,  Hiroshi Ichimura ,  Kazuhiko Inaba ,  Katsuyuki Miyashita ,  Takahiro Yaginuma ,  Tomoaki Sugano ,  Hirokazu Kitazawa ,  Fumihiro Morishita

IPC: B62D3/02

CPC classification number: B62D5/04

Abstract: An electric power steering apparatus (10) includes a steering wheel (21), a steering shaft (22), a rack-and-pinion mechanism (25), and a rack shaft (26) connected to the steering wheel through the steering shaft and the rack-and-pinion mechanism. The rack shaft is connected to vehicle wheels (29, 29). The electric power steering apparatus further includes a first electric motor (41) for producing a motive power to be applied to the steering shaft, and a second electric motor (51) for producing a motive power to be applied to the rack shaft.

Abstract translation: 一种电动助力转向装置（10），包括方向盘（21），转向轴（22），齿条齿轮机构（25）和齿条轴（26），所述齿条轴通过转向轴 和齿条齿轮机构。 齿条轴连接到车轮（29,29）。 电动助力转向装置还包括用于产生施加到转向轴的动力的第一电动机（41）和用于产生施加到齿条轴的动力的第二电动机（51）。

公开(公告)号：US20050087390A1

公开(公告)日：2005-04-28

申请号：US10997705

申请日：2004-11-24

Applicant: Hiroshi Furumi ,  Osamu Tsurumiya ,  Kazuhiko Inaba ,  Hisao Asaumi ,  Yoshio Kakizaki ,  Hirokazu Kitazawa ,  Tomoaki Sugano ,  Shinji Suto ,  Hiroaki Horii ,  Fumihiro Morishita ,  Junichi Yoshida

Inventor： Hiroshi Furumi ,  Osamu Tsurumiya ,  Kazuhiko Inaba ,  Hisao Asaumi ,  Yoshio Kakizaki ,  Hirokazu Kitazawa ,  Tomoaki Sugano ,  Shinji Suto ,  Hiroaki Horii ,  Fumihiro Morishita ,  Junichi Yoshida

IPC: B62D5/04 ,  H02P6/04

CPC classification number: B62D5/04 ,  B62D5/0409 ,  B62D5/0421 ,  B62D5/046 ,  B62D5/0463 ,  B62D5/0484 ,  B62D5/0487 ,  H02P6/04

Abstract: A motor driving method for a steering apparatus for applying an auxiliary steering force to a steering system with two motors. When the two motors are driven, a first one of the two motors is operated first. Thereafter, the other, second motor is driven, whereby smooth steering is effected.

Abstract translation: 一种用于向具有两个电动机的转向系统施加辅助转向力的转向装置的电动机驱动方法。 当两个电动机被驱动时，首先操作两个电动机中的第一个。 此后，另一个第二电动机被驱动，从而实现平稳的转向。

公开(公告)号：US20140019008A1

公开(公告)日：2014-01-16

申请号：US13990346

申请日：2011-11-22

Applicant: Kouji Nakamura ,  Kazuhiko Inaba ,  Shigenobu Sekiya ,  Tomohiro Morikami ,  Junichi Seto ,  Satoshi Kawabe ,  Norio Yamazaki

Inventor： Kouji Nakamura ,  Kazuhiko Inaba ,  Shigenobu Sekiya ,  Tomohiro Morikami ,  Junichi Seto ,  Satoshi Kawabe ,  Norio Yamazaki

IPC: B62D6/00 ,  B62D5/04

CPC classification number: B62D6/00 ,  B62D5/0463 ,  B62D6/008

Abstract: An electronic power steering apparatus for a vehicle having a steering mechanism to generate a steering assisting force includes: a steering angle sensor; a steering torque sensor; a target steering torque setting unit for setting a target steering torque based on the detected steering angle; a torque deviation computing unit for computing a torque deviation between the target steering torque and the detected steering torque; a first target current value computing unit for computing a first target current value for generating a steering assisting force by the motor based on the computed torque deviation; and a vehicle speed sensitivity adjusting unit that adjusts the first target current value, at least corresponding to a detected vehicle speed, and outputs the adjusted first current value as a second target current value. The motor control unit controls the motor to generate the steering assisting force based on the second target current value.

Abstract translation: 一种用于具有用于产生转向辅助力的转向机构的车辆用电动助力转向装置，包括：转向角传感器; 转向扭矩传感器; 目标转向转矩设定单元，用于基于检测到的转向角来设定目标转向转矩; 用于计算目标转向转矩和检测到的转向转矩之间的转矩偏差的转矩偏差计算单元; 第一目标电流值计算单元，用于基于所计算的转矩偏差计算用于通过所述电动机产生转向辅助力的第一目标电流值; 以及车速灵敏度调整单元，其至少对应于检测到的车速来调整第一目标电流值，并将调整后的第一电流值作为第二目标电流值输出。 马达控制单元基于第二目标电流值控制马达产生转向辅助力。

公开(公告)号：US20130238196A1

公开(公告)日：2013-09-12

申请号：US13881308

申请日：2011-10-26

Applicant: Junichi Seto ,  Kazuhiko Inaba ,  Norio Yamazaki ,  Kouji Nakamura ,  Satoshi Kawabe

Inventor： Junichi Seto ,  Kazuhiko Inaba ,  Norio Yamazaki ,  Kouji Nakamura ,  Satoshi Kawabe

IPC: B62D5/04

CPC classification number: B62D5/0472 ,  B62D5/0469

Abstract: Provided is an electric power steering system that prevents the oscillation of the steering wheel at each steering stroke end. If the steering stroke end flag Fse is 1 or if the determination result is Yes in step S8, the EPS-ECU (21) determines if the right steering flag (Fdrc) is 1 in step S10. If the determination result is Yes, it is then determined if the steering torque difference base value (Dtsb) is positive in step S11. If the determination result of step S11 is Yes, the EPS-ECU (21) uses the steering torque difference base value (Dtsb) as the steering torque difference (Dts) in step S12. If the determination result is No, the steering torque difference (Dts) is given by a value 0 in step S13, and the control process is concluded.

Abstract translation: 提供了一种电动助力转向系统，其防止方向盘在每个转向行程末端的振荡。 如果转向行程结束标志Fse为1，或者如果在步骤S8中确定结果为是，则在步骤S10中，EPS-ECU（21）确定右转向标志（Fdrc）是否为1。 如果确定结果为是，则在步骤S11中确定转向转矩差基准值（Dtsb）是否为正。 如果步骤S11的确定结果为是，则在步骤S12中，EPS-ECU（21）使用转向转矩差基准值（Dtsb）作为转向转矩差（Dts）。 如果确定结果为否，则在步骤S13中转向转矩差（Dts）由值0给出，并且控制过程结束。