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1. 发明授权

US08294407B2 Motor controller and electric power steering system 有权
标题翻译：电机控制器和电动助力转向系统
公开(公告)号：US08294407B2
公开(公告)日：2012-10-23
申请号：US12828417
申请日：2010-07-01
申请人： Satoru Mikamo , Atsuo Sakai
发明人： Satoru Mikamo , Atsuo Sakai
IPC分类号： H02P27/00
CPC分类号： H02P21/04 , B62D5/046 , H02M7/5395 , H02M2001/0009 , H02P21/16 , H02P21/22 , H02P27/08
摘要： A motor controller and an electric power steering system including the motor controller are provided. The motor controller has a microcomputer. When the on time of one of the lower potential-side FETs corresponding to the respective phases in a drive circuit becomes shorter than the detection time for detecting the phase current value, the microcomputer estimates the phase current value of the electric current undetectable phase based on the phase current values of the two phases other than the electric current undetectable phase corresponding to the relevant FET (blind estimation). When electric current detection is performed in the blind estimation, motor control signals are output, by which the switching state of the switching arm of the electric current undetectable phase is maintained and the power loss caused by the switching operation of the FETs in the two phases other than the electric current undetectable phase is compensated for.
摘要翻译：提供了一种电动机控制器和包括电动机控制器的电动助力转向系统。电机控制器有一台微机。当与驱动电路中的各相对应的低电位侧FET之一的导通时间比检测相电流值的检测时间短时，微机根据电流检测相位估计相电流值两相以外的相电流值除电流不可检测相位对应于相关FET（盲估计）。在盲目估计中进行电流检测时，输出电动机控制信号，通过该电动机控制信号保持电流不可检测相位的开关臂的开关状态，并且由两相中的FET的开关动作引起的功率损耗除了电流检测不到的相位被补偿。

2. 发明授权

US07913805B2 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US07913805B2
公开(公告)日：2011-03-29
申请号：US12688250
申请日：2010-01-15
申请人： Akihiro Tomita , Atsuo Sakai , Satoru Mikamo
发明人： Akihiro Tomita , Atsuo Sakai , Satoru Mikamo
IPC分类号： B62D5/04
CPC分类号： B62D5/046 , H02P21/06 , H02P21/18 , H02P2205/05
摘要： A rotational angle sensor used in an electric power steering apparatus detects a rotational angle of a motor shaft at a portion on a steering system side, as a motor rotational angle (θm). A MPU sets a base correction amount (Δθ′m) based on a q-axis actual current value (Iq). The MPU sets a rotational angle correction amount (Δθm) used to correct the motor rotational angle (θm) by decreasing the base correction amount (Δθ′m) as a rotational angular speed (ω) increases and by increasing the base correction amount (Δθ′m) as a torque differential value (dT/dt) increases.
摘要翻译：在电动助力转向装置中使用的旋转角度传感器作为电动机旋转角度（＆amp; m）检测转向系统侧的部分处的电动机轴的旋转角度。 MPU根据q轴实际电流值（Iq）设置基准校正量（＆Dgr;＆amp; tt; m）。 MPU通过减小基准校正量（＆Dgr;＆amp; tt; m）来设定用于校正电动机旋转角度（＆amp; m;）的旋转角度校正量（＆Dgr;＆amp; t; m），因为旋转角速度（ω）增加并且随着转矩差分值（dT / dt）的增加，增加基本校正量（＆Dgr;＆amp; t; m）。

3. 发明申请

US20150298726A1 STEERING CONTROL SYSTEM FOR VEHICLE AND STEERING CONTROL METHOD FOR VEHICLE 有权
标题翻译：车辆转向控制系统及车辆转向控制方法
公开(公告)号：US20150298726A1
公开(公告)日：2015-10-22
申请号：US14439817
申请日：2014-01-21
申请人： Kenichiro AOKI , Satoru MIKAMO , Naoki YAMANO
发明人： Kenichiro Aoki , Satoru Mikamo , Naoki Yamano
IPC分类号： B62D5/04 , B62D6/10
CPC分类号： B62D5/0463 , B62D5/0472 , B62D5/0484 , B62D5/049 , B62D6/10
摘要： A steering control system for a vehicle includes an electric motor, a torque sensor, an angular velocity sensor, and a control unit. The electric motor applies assist force to a turning operation of a steering wheel. The torque sensor detects a torque generated in a steering system including the steering wheel and varying with the turning operation. The angular velocity sensor detects an angular velocity generated in the steering system and varying with the turning operation. The control unit computes an assist control amount for the turning operation by using the torque and the angular velocity, and, when an abnormality occurs in a torque detection operation, increases a control amount computed by using the angular velocity among control amounts that constitute the assist control amount as compared to that when torque sensor operation is normal and executes drive control over the electric motor based on the assist control amount.
摘要翻译：车辆的转向控制系统包括电动机，转矩传感器，角速度传感器和控制单元。电动机对方向盘的转动操作施加辅助力。转矩传感器检测在包括方向盘的转向系统中产生的扭矩并随着转弯操作而变化。角速度传感器检测在转向系统中产生的角速度，并随转弯操作而变化。控制单元通过使用转矩和角速度来计算用于转弯操作的辅助控制量，并且当在转矩检测操作中发生异常时，增加通过使用构成辅助的控制量中的角速度计算出的控制量控制量与转矩传感器运转正常时相比，基于辅助控制量执行对电动机的驱动控制。

4. 发明申请

US20090026003A1 VEHICLE STEERING APPARATUS 有权
标题翻译：车辆转向装置
公开(公告)号：US20090026003A1
公开(公告)日：2009-01-29
申请号：US12177239
申请日：2008-07-22
申请人： Hiroaki KATO , Satoru Mikamo
发明人： Hiroaki KATO , Satoru Mikamo
IPC分类号： B62D5/04
CPC分类号： B62D5/008 , B62D5/0463 , B62D5/0472 , B62D6/002 , B62D6/008
摘要： A vehicle steering apparatus 1 includes an EPS actuator 17 and an EPS ECU 18 that controls the EPS actuator 17. The EPS actuator 17 applies an assist force that assists a steering operation. A microcomputer 43 of the EPS ECU 18 determines whether the currently executed oversteer control (OS control) is being intensified or converged. In the OS control intensification state, in which the vehicle stability is low, the microcomputer 43 reduces a damper compensation current command Idp* (Idp**), which is a damper compensation component for attenuating a steering wheel turning speed ωs.
摘要翻译：车辆转向装置1包括EPS致动器17和控制EPS致动器17的EPS ECU18。EPS致动器17施加辅助转向操作的辅助力。 EPS ECU18的微型计算机43判定当前执行的过度转向控制（OS控制）是否正在加强或收敛。在车辆稳定性低的OS控制强化状态下，微型计算机43减少作为用于衰减方向盘转向速度ωo的减振器补偿分量的阻尼器补偿电流指令Idp *（Idp **）。

5. 发明申请

US20140139158A1 MOTOR CONTROL DEVICE AND STEERING DEVICE FOR VEHICLE 有权
标题翻译：用于车辆的电动机控制装置和转向装置
公开(公告)号：US20140139158A1
公开(公告)日：2014-05-22
申请号：US14127253
申请日：2012-07-02
申请人： Akihiro Tomita , Satoru Mikamo , Hiroshi Kawamura , Toshihiro Takahashi , Jun Hasegawa , Akira Nambu , Kenichiro Aoki , Eiji Kasai
发明人： Akihiro Tomita , Satoru Mikamo , Hiroshi Kawamura , Toshihiro Takahashi , Jun Hasegawa , Akira Nambu , Kenichiro Aoki , Eiji Kasai
IPC分类号： H02P6/12
CPC分类号： H02P6/12 , B62D5/0487 , G01R31/026 , G01R31/327 , H02P29/0241 , H02P29/0243
摘要： In a state in which the energization in the first direction is possible between the motor and the drive circuit and the motor is not rotating at high speed, when the phase induced voltage value of the specific phase that is the target of determination is continuously equal to or smaller than the abnormality determination threshold, the abnormality detecting unit determines that an open malfunction has occurred in the relay FET of the specific phase.
摘要翻译：在电动机和驱动电路之间可能在第一方向上通电并且电动机不以高速旋转的状态下，当作为确定目标的特定相位的相感应电压值连续等于或小于异常判定阈值的情况下，异常检测单元判定在特定相的继电器FET中发生了开路故障。

6. 发明授权

US09461568B2 Motor control device and steering device for vehicle 有权
标题翻译：电机控制装置和车辆转向装置
公开(公告)号：US09461568B2
公开(公告)日：2016-10-04
申请号：US14127253
申请日：2012-07-02
申请人： Akihiro Tomita , Satoru Mikamo , Hiroshi Kawamura , Toshihiro Takahashi , Jun Hasegawa , Akira Nambu , Kenichiro Aoki , Eiji Kasai
发明人： Akihiro Tomita , Satoru Mikamo , Hiroshi Kawamura , Toshihiro Takahashi , Jun Hasegawa , Akira Nambu , Kenichiro Aoki , Eiji Kasai
IPC分类号： H02H7/08 , H02H7/122 , H02P6/12 , B62D5/04 , G01R31/327 , G01R31/02
CPC分类号： H02P6/12 , B62D5/0487 , G01R31/026 , G01R31/327 , H02P29/0241 , H02P29/0243
摘要： In a state in which the energization in the first direction is possible between the motor and the drive circuit and the motor is not rotating at high speed, when the phase induced voltage value of the specific phase that is the target of determination is continuously equal to or smaller than the abnormality determination threshold, the abnormality detecting unit determines that an open malfunction has occurred in the relay FET of the specific phase.
摘要翻译：在电动机和驱动电路之间可能在第一方向上通电并且电动机不以高速旋转的状态下，当作为确定目标的特定相位的相感应电压值连续等于或小于异常判定阈值的情况下，异常检测单元判定在特定相的继电器FET中发生了开路故障。

7. 发明授权

US08766589B2 Motor control unit and vehicle steering system 有权
标题翻译：电机控制单元和车辆转向系统
公开(公告)号：US08766589B2
公开(公告)日：2014-07-01
申请号：US13450992
申请日：2012-04-19
申请人： Toshihiro Takahashi , Satoru Mikamo , Hiroshi Kawamura , Jun Hasegawa , Akihiro Tomita , Akira Nambu
发明人： Toshihiro Takahashi , Satoru Mikamo , Hiroshi Kawamura , Jun Hasegawa , Akihiro Tomita , Akira Nambu
IPC分类号： H02P21/00
CPC分类号： B62D5/0487 , B62D5/0481 , G01R31/343 , H02P6/12 , H02P29/024 , H02P29/0243 , H02P29/028
摘要： In a motor control unit, a current-carrying failure detection unit determines a first determination condition and a second determination condition. The current-carrying failure detection unit measures a duration of a state where the first determination condition is satisfied, and a duration of a state where the second determination condition is satisfied. When the first or second duration exceeds a predetermined reference period, the current-carrying failure detection unit determines that a current-carrying failure has occurred.
摘要翻译：在电动机控制单元中，通电故障检测单元确定第一确定条件和第二确定条件。载波故障检测单元测量满足第一确定条件的状态的持续时间和满足第二确定条件的状态的持续时间。当第一或第二持续时间超过预定的参考周期时，通电故障检测单元确定发生了通电故障。

8. 发明授权

US07278512B2 Variable gear ratio hydraulic power steering device 有权
标题翻译：可变齿轮比液压动力转向装置
公开(公告)号：US07278512B2
公开(公告)日：2007-10-09
申请号：US11052061
申请日：2005-02-08
申请人： Kazumasa Kodama , Hirozumi Eki , Satoru Mikamo
发明人： Kazumasa Kodama , Hirozumi Eki , Satoru Mikamo
IPC分类号： B62D5/06
CPC分类号： B62D5/008 , B62D1/166 , B62D5/065 , F15B2211/30575
摘要： A variable gear ratio hydraulic power steering device 1 is provided with a variable ratio transmission mechanism 7 having a drive motor 70; a flow volume control valve 41 for controlling the discharge flow volume of an oil pump 10 which circulates operating fluid; and a steering angle sensor 310 for measuring a handle steering angle input to a steering handle 31. A valve controlling controller 50 is constructed to take thereinto a measured ACT angle which is the rotational angle of the drive motor 70 and to calculate a target ACT angle for the drive motor 70 based on the handle steering angle. Further, the valve controlling controller 50 controls the flow volume control valve 41 to make the discharge flow volume equal to or greater than a predetermined flow volume when the magnitude of a difference ACT angle which is the difference between the target ACT angle and the measured ACT angle is equal to or greater than a threshold value.
摘要翻译：可变齿轮比液压动力转向装置1设置有具有驱动马达70的可变比传动机构7; 用于控制使工作流体循环的油泵10的排出流量的流量控制阀41; 以及用于测量输入到转向手柄31的手柄转向角的转向角传感器310。阀控制控制器50被构造成采用作为驱动电动机70的旋转角度的测量的ACT角度并且基于手柄转向角来计算驱动电动机70的目标ACT角度。此外，当作为目标ACT角度与测量的ACT之间的差的差ACT角度的大小时，阀控制控制器50控制流量控制阀41使排出流量等于或大于预定流量角度等于或大于阈值。

9. 发明申请

US20050178607A1 Variable gear ratio hydraulic power steering device 有权
标题翻译：可变齿轮比液压动力转向装置
公开(公告)号：US20050178607A1
公开(公告)日：2005-08-18
申请号：US11052061
申请日：2005-02-08
申请人： Kazumasa Kodama , Hirozumi Eki , Satoru Mikamo
发明人： Kazumasa Kodama , Hirozumi Eki , Satoru Mikamo
IPC分类号： B62D6/00 , B62D1/16 , B62D5/00 , B62D5/065 , B62D5/07 , B62D5/22 , B62D101/00 , B62D113/00 , B62D117/00 , B62D137/00 , B62D5/06
CPC分类号： B62D5/008 , B62D1/166 , B62D5/065 , F15B2211/30575
摘要： A variable gear ratio hydraulic power steering device 1 is provided with a variable ratio transmission mechanism 7 having a drive motor 70; a flow volume control valve 41 for controlling the discharge flow volume of an oil pump 10 which circulates operating fluid; and a steering angle sensor 310 for measuring a handle steering angle input to a steering handle 31. A valve controlling controller 50 is constructed to take thereinto a measured ACT angle which is the rotational angle of the drive motor 70 and to calculate a target ACT angle for the drive motor 70 based on the handle steering angle. Further, the valve controlling controller 50 controls the flow volume control valve 41 to make the discharge flow volume equal to or greater than a predetermined flow volume when the magnitude of a difference ACT angle which is the difference between the target ACT angle and the measured ACT angle is equal to or greater than a threshold value.
摘要翻译：可变齿轮比液压动力转向装置1设置有具有驱动马达70的可变比传动机构7; 用于控制使工作流体循环的油泵10的排出流量的流量控制阀41; 以及用于测量输入到转向手柄31的手柄转向角的转向角传感器310.阀控制控制器50被构造成将测量的ACT角度作为驱动电动机70的旋转角度并计算目标ACT角度用于基于手柄转向角的驱动马达70。此外，当作为目标ACT角度与测量的ACT之间的差的差ACT角度的大小时，阀控制控制器50控制流量控制阀41使排出流量等于或大于预定流量角度等于或大于阈值。

10. 发明授权

US09308934B2 Steering control system for vehicle and steering control method for vehicle 有权
标题翻译：车辆转向控制系统及车辆转向控制方法
公开(公告)号：US09308934B2
公开(公告)日：2016-04-12
申请号：US14439817
申请日：2014-01-21
申请人： Kenichiro Aoki , Satoru Mikamo , Naoki Yamano
发明人： Kenichiro Aoki , Satoru Mikamo , Naoki Yamano
IPC分类号： B62D5/04 , B62D6/10
CPC分类号： B62D5/0463 , B62D5/0472 , B62D5/0484 , B62D5/049 , B62D6/10
摘要： A steering control system for a vehicle includes an electric motor, a torque sensor, an angular velocity sensor, and a control unit. The electric motor applies assist force to a turning operation of a steering wheel. The torque sensor detects a torque generated in a steering system including the steering wheel and varying with the turning operation. The angular velocity sensor detects an angular velocity generated in the steering system and varying with the turning operation. The control unit computes an assist control amount for the turning operation by using the torque and the angular velocity, and, when an abnormality occurs in a torque detection operation, increases a control amount computed by using the angular velocity among control amounts that constitute the assist control amount as compared to that when torque sensor operation is normal and executes drive control over the electric motor based on the assist control amount.
摘要翻译：车辆的转向控制系统包括电动机，转矩传感器，角速度传感器和控制单元。电动机对方向盘的转动操作施加辅助力。转矩传感器检测在包括方向盘的转向系统中产生的扭矩并随着转弯操作而变化。角速度传感器检测在转向系统中产生的角速度，并随转弯操作而变化。控制单元通过使用转矩和角速度来计算用于转弯操作的辅助控制量，并且当在转矩检测操作中发生异常时，增加通过使用构成辅助的控制量中的角速度计算出的控制量控制量与转矩传感器运转正常时相比，基于辅助控制量执行对电动机的驱动控制。

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