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1. 发明申请

US20120274260A1 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：US20120274260A1
公开(公告)日：2012-11-01
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： H02P7/00
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。

2. 发明申请

US20100181140A1 ELECTRIC POWER STEERING APPARATUS 有权
标题翻译：电动转向装置
公开(公告)号：US20100181140A1
公开(公告)日：2010-07-22
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

US20110005855A1 MOTOR CONTROLLER AND ELECTRIC POWER STEERING SYSTEM 有权
标题翻译：电机控制器和电力转向系统
公开(公告)号：US20110005855A1
公开(公告)日：2011-01-13
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： B62D5/04 , H02P6/08
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。

4. 发明申请

US20090024280A1 VEHICLE STEERING APPARATUS 有权
标题翻译：车辆转向装置
公开(公告)号：US20090024280A1
公开(公告)日：2009-01-22
申请号：US12174873
申请日：2008-07-17
申请人： Hiroaki KATO , Satoru MIKAMO
发明人： Hiroaki KATO , Satoru MIKAMO
IPC分类号： B62D6/00
CPC分类号： B62D5/008 , B62D5/0472 , B62D6/008 , B62D15/025
摘要： A vehicle steering apparatus 1 includes a variable gear ratio actuator 7, an IFS ECU 8, which controls the actuator 7, an EPS actuator 17, and an EPS ECU 18, which controls the EPS actuator 17. The variable gear ratio actuator 7 varies the transmission ratio between a steering wheel and steered wheels. The EPS actuator 17 applies an assist force that assists a steering operation. A microcomputer 43 of the EPS actuator 17 increases an inertia compensation current command Iti* (Iti**), which is a compensation component based on the differential value of a steering torque, during actuation of the variable gear ratio actuator 7, that is, when an ACT angle θta is changed.
摘要翻译：车辆转向装置1包括控制EPS致动器17的可变齿轮比致动器7，控制致动器7的IFS ECU8，EPS致动器17和EPS ECU18。可变齿轮比致动器7改变方向盘和转向轮之间的传动比。 EPS致动器17施加辅助转向操作的辅助力。 EPS致动器17的微型计算机43在可变齿轮比致动器7的致动期间增加作为基于转向转矩的差分值的补偿分量的惯性补偿电流指令Iti *（Iti **），也就是说，当ACT角度变化时。

5. 发明申请

US20090030573A1 VEHICLE STEERING APPARATUS 失效
标题翻译：车辆转向装置
公开(公告)号：US20090030573A1
公开(公告)日：2009-01-29
申请号：US12178117
申请日：2008-07-23
申请人： Satoru MIKAMO , Hiroaki Kato , Takashi Kodera , Takehiro Ito
发明人： Satoru MIKAMO , Hiroaki Kato , Takashi Kodera , Takehiro Ito
IPC分类号： B62D6/00
CPC分类号： B62D5/008 , B62D6/003
摘要： A control ON/OFF determination unit determines that oversteer control should be started in the case where a slip angle differential value is equal to or greater than a predetermined threshold value, the sign of the slip angle differential value is identical with the sign of a yaw rate, the sign of a steering wheel turning angle is identical with the sign of a steering wheel turning speed, and a vehicle speed is equal to or greater than a predetermined threshold value.
摘要翻译：控制ON / OFF确定单元确定在滑差差值等于或大于预定阈值的情况下应该开始过度转向控制，滑差差值的符号与偏航的符号相同方向盘转向角的符号与方向盘转动速度的符号相同，车速等于或大于预定阈值。

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