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1. 发明授权

US06513619B2 Electrically-driven power steering system 有权
标题翻译：电动助力转向系统
公开(公告)号：US06513619B2
公开(公告)日：2003-02-04
申请号：US09928365
申请日：2001-08-14
申请人： Hideki Amakusa , Atsushi Sato
发明人： Hideki Amakusa , Atsushi Sato
IPC分类号： B62D504
CPC分类号： B62D5/0493
摘要： An abnormality detection circuit for detecting abnormality of a CPU includes a command value check circuit for checking whether a current command value calculated by the CPU is normal or abnormal with respect to a torque signal, and a drive signal check circuit for checking whether a motor drive signal outputted based on the current command value is normal or abnormal. When the command value abnormality of the CPU is detected by the abnormality detection circuit, a counter circuit is started to count a time of an abnormality state of the CPU. If the counted time reaches a predetermined time, a control stop command is outputted from a system stop circuit to the CPU, thereby stopping the system control of the CPU.
摘要翻译：用于检测CPU的异常的异常检测电路包括用于检查由CPU计算的电流指令值是否相对于转矩信号正常或异常的指令值检查电路，以及用于检查电动机驱动基于当前指令值输出的信号正常或异常。当异常检测电路检测到CPU的指令值异常时，开始对CPU的异常状态的时间进行计数的计数器电路。如果计时时间达到预定时间，则从系统停止电路向CPU输出控制停止命令，从而停止CPU的系统控制。

2. 发明申请

US20050017662A1 Driving circuit for brushless motor 失效
标题翻译：无刷电机驱动电路
公开(公告)号：US20050017662A1
公开(公告)日：2005-01-27
申请号：US10865282
申请日：2004-06-10
申请人： Hideki Amakusa
发明人： Hideki Amakusa
IPC分类号： H02H3/08 , B62D5/04 , H02H7/08 , H02P6/12 , H02P29/02 , H02P5/06
CPC分类号： H02P29/02
摘要： A driving circuit for a brushless motor includes a current sensor for detecting alternating phase-current flowing in one of the phase coils, a switching driver for supplying each phase-coil with prescribed alternating phase-current, a reference value setting circuit which provides a reference value which changes in synchronism with the prescribed phase-current to be larger than the same and an abnormality determining circuit which determines abnormality if the current detected by the current sensor is larger than the reference value.
摘要翻译：一种用于无刷电动机的驱动电路，包括用于检测在一个相线圈中流动的交流相电流的电流传感器，用于向每个相线圈提供规定的交流相电流的开关驱动器，提供参考的基准值设置电路与规定的相电流同步变化的值大于相同的值;以及异常判定电路，其判断由电流传感器检测出的电流是否大于参考值的异常判定电路。

3. 发明授权

US06727671B2 Control system for electric power steering apparatus 有权
标题翻译：电动助力转向装置控制系统
公开(公告)号：US06727671B2
公开(公告)日：2004-04-27
申请号：US10383756
申请日：2003-03-10
申请人： Norihisa Ito , Hideki Amakusa , Atsushi Sato
发明人： Norihisa Ito , Hideki Amakusa , Atsushi Sato
IPC分类号： H02P700
CPC分类号： B62D5/0493
摘要： A control system for an electric power steering apparatus detects calculation anomalies in a CPU regardless of the magnitude of a modified control quantity. The CPU has a basic control quantity calculating means for calculating a basic control quantity to drive a motor based on an output from a torque sensor, and a modified control quantity calculating means for calculating a modified control quantity corresponding to the steering conditions (for example, steering speed) of the steering wheel. The CPU-calculation monitoring unit has a first anomaly deciding means for deciding whether the calculation result of the basic control quantity calculating means is normal or anomalous in light of the output from the torque sensor, and a second anomaly deciding means for deciding whether the calculation result of the modified control quantity calculating means is normal or anomalous in light of the steering conditions. The motor is deactivated if anomalies are detected.
摘要翻译：用于电动转向装置的控制系统检测CPU中的计算异常，而与修改的控制量的大小无关。 CPU具有基本控制量计算装置，用于基于来自扭矩传感器的输出来计算用于驱动电动机的基本控制量;以及修改控制量计算装置，用于计算对应于转向条件的修改控制量（例如，方向盘的转向速度）。 CPU计算监视单元具有第一异常判定装置，用于根据扭矩传感器的输出来判定基本控制量计算装置的计算结果是正常还是异常;第二异常判定装置，用于判定计算根据转向条件，修正控制量计算装置的结果是正常的或异常的。如果检测到异常，则电机停用。

4. 发明授权

US07045982B2 Driving circuit for brushless motor 失效
标题翻译：无刷电机驱动电路
公开(公告)号：US07045982B2
公开(公告)日：2006-05-16
申请号：US10865282
申请日：2004-06-10
申请人： Hideki Amakusa
发明人： Hideki Amakusa
IPC分类号： H02K23/00 , H02P1/18 , H02P3/08 , H02P5/06 , H02P7/06
CPC分类号： H02P29/02
摘要： A driving circuit for a brushless motor includes a current sensor for detecting alternating phase-current flowing in one of the phase coils, a switching driver for supplying each phase-coil with prescribed alternating phase-current, a reference value setting circuit which provides a reference value which changes in synchronism with the prescribed phase-current to be larger than the same and an abnormality determining circuit which determines abnormality if the current detected by the current sensor is larger than the reference value.
摘要翻译：一种用于无刷电动机的驱动电路，包括用于检测在一个相线圈中流动的交流相电流的电流传感器，用于向每个相线圈提供规定的交流相电流的开关驱动器，提供参考的基准值设置电路与规定的相电流同步变化的值大于相同的值;以及异常判定电路，其判断由电流传感器检测出的电流是否大于参考值的异常判定电路。

5. 发明授权

US06683774B2 Monitoring system for electrical angle calculator 有权
标题翻译：电角度计算器监控系统
公开(公告)号：US06683774B2
公开(公告)日：2004-01-27
申请号：US10143017
申请日：2002-05-13
申请人： Hisashi Kameya , Hideki Amakusa
发明人： Hisashi Kameya , Hideki Amakusa
IPC分类号： H01H4700
CPC分类号： B62D5/0493 , B62D5/046 , H02P6/34
摘要： A monitoring system monitors a microcomputer in which an angle calculator calculates the electrical angle of a motor using output signals from a rotation angle sensor. In the microcomputer, a control signal generator generates a coded control signal that indicates the range to which the calculated electrical angle belongs. In the monitoring system, the electrical angle detected by the rotation angle sensor is multiplied by an excitation signal provided for the rotation angle sensor, and an angle detector detects the resultant signals. Based on the detected signals, a supervisory signal generator outputs a coded supervisory signal that indicates the range to which the electrical angle detected by the rotation angle sensor belongs. Then a fault detector determines that a failure occurs in the microcomputer, if a comparator determines that the coded control signal disagrees with the coded supervisory signal.
摘要翻译：监视系统监视其中角度计算器使用来自旋转角度传感器的输出信号计算电机的电角度的微型计算机。在微计算机中，控制信号发生器产生指示所计算的电气角度所属范围的编码控制信号。在监视系统中，由旋转角度传感器检测到的电角乘以为旋转角度传感器提供的激励信号，角度检测器检测结果信号。基于检测到的信号，监视信号发生器输出指示由旋转角度传感器检测到的电角度所属范围的编码监控信号。然后，如果比较器确定编码的控制信号与编码的监控信号不一致，则故障检测器确定在微计算机中发生故障。

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