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1. 发明授权

US06729435B2 Apparatus and method for controlling electric power steering system 有权
标题翻译：控制电动助力转向系统的装置及方法
公开(公告)号：US06729435B2
公开(公告)日：2004-05-04
申请号：US10318155
申请日：2002-12-13
申请人： Yasushi Yamada , Masahide Iwazawa , Kiyotaka Iwata , Akira Itoh
发明人： Yasushi Yamada , Masahide Iwazawa , Kiyotaka Iwata , Akira Itoh
IPC分类号： B62D504
CPC分类号： B62D5/0487 , B62D5/0466 , B62D5/0484
摘要： A control apparatus of an electric power steering system has first to fourth calculators and an abnormality detector. The first calculator calculates an assist current command value, which corresponds to assist force for reducing steering force of the steering wheel, based on the steering torque of the steering wheel. The second to fourth calculators calculate a compensation current command value, which corresponds to compensation force for compensating for movement of the steering wheel, based on the angular velocity of the steering wheel that has been estimated based on the terminal-to-terminal voltage of the motor. The abnormality detector detects an abnormality of the terminal voltages of the motor. When the abnormality detector detects an abnormality, the second to fourth calculators substitute zero for the steering wheel angular velocity and then calculates the compensation current command value.
摘要翻译：电动助力转向系统的控制装置具有第一至第四计算器和异常检测器。第一计算器基于方向盘的转向扭矩计算辅助电流指令值，该辅助电流指令值对应于用于减小方向盘的转向力的辅助力。第二至第四计算器基于已经基于所述方向盘的端子间电压估计的方向盘的角速度来计算补偿电流指令值，该补偿电流指令值对应于用于补偿方向盘的运动的补偿力发动机。异常检测器检测电动机的端子电压的异常。当异常检测器检测到异常时，第二至第四计算器将零代替方向盘角速度，然后计算补偿电流指令值。

2. 发明授权

US07253573B2 Power source for a hybrid vehicle 有权
标题翻译：混合动力汽车的动力源
公开(公告)号：US07253573B2
公开(公告)日：2007-08-07
申请号：US11403879
申请日：2006-04-14
申请人： Masahide Iwazawa
发明人： Masahide Iwazawa
IPC分类号： H02P7/00
CPC分类号： B60L11/1868 , B60L7/16 , Y02T10/7005 , Y02T10/7066
摘要： A power source for a hybrid vehicle is provided which can protect its electric motor driving circuit from being damaged by a back electromotive force generated in a motor. The back electromotive force generated in an electric motor is detected by a high voltage detector circuit and converted by a step-down circuit into a low voltage which is then stored in a low-voltage second battery. Accordingly, as the back electromotive force does not become excessively high, it will be prevented from damaging a switching circuit. Also, the back electromotive force generated in the motor is charged in the low-voltage battery and can thus be supplied to a control circuit or any other component, contributing to the reduction of the fuel consumption of the hybrid vehicle. The back electromotive force can alternatively be diverted for charging a medium-voltage third battery.
摘要翻译：提供了一种用于混合动力车辆的动力源，其可以保护其电动机驱动回路免受在电动机中产生的反电动势的损害。在电动机中产生的反电动势由高电压检测电路检测，并由降压电路转换为低电压，然后将其存储在低压第二电池中。因此，由于反电动势不会变得过高，所以不会损害开关电路。此外，在电动机中产生的反电动势被充电在低压电池中，并且因此可以被提供给控制电路或任何其它部件，有助于降低混合动力车辆的燃料消耗。替代地，反电动势可以转向用于对中压第三电池充电。

3. 发明授权

US07176646B2 Electric power steering apparatus and electricity supply system 有权
标题翻译：电动助力转向装置和供电系统
公开(公告)号：US07176646B2
公开(公告)日：2007-02-13
申请号：US11252785
申请日：2005-10-19
申请人： Masahide Iwazawa
发明人： Masahide Iwazawa
IPC分类号： H02P7/00
CPC分类号： B62D5/046 , Y02T10/7258
摘要： A transformer section transforms a primary voltage and outputs secondary voltage. A control section inputs a first signal indicating a state of electricity supply of a primary power source through an in-vehicle network. The transformer section outputs a second signal indicating a state of electricity supply of the transformer section. When the input of the first signal is disrupted, the control section limits the driving electricity supplied to the steering motor based on at least one of a value of the secondary voltage and the electricity supply state of the transformer section indicated by the second signal. Accordingly, driving electricity is stably supplied with the steering motor with a simple configuration even if the input of the first signal is disrupted due to a failure in the in-vehicle network.
摘要翻译：变压器部分转换初级电压并输出次级电压。控制部通过车载网络输入表示主电源的供电状态的第一信号。变压器部输出表示变压器部的供电状态的第二信号。当第一信号的输入被中断时，控制部分根据由第二信号指示的变压器部分的次级电压和供电状态的值中的至少一个来限制提供给转向电动机的驱动电力。因此，即使第一信号的输入由于车载网络中的故障而中断，也能够以简单的结构向转向马达稳定地供给驱动电力。

4. 发明申请

US20060087269A1 Electric power steering apparatus and electricity supply system 有权
标题翻译：电动助力转向装置和供电系统
公开(公告)号：US20060087269A1
公开(公告)日：2006-04-27
申请号：US11252785
申请日：2005-10-19
申请人： Masahide Iwazawa
发明人： Masahide Iwazawa
IPC分类号： H02P7/00
CPC分类号： B62D5/046 , Y02T10/7258
摘要： A transformer section transforms a primary voltage and outputs secondary voltage. A control section inputs a first signal indicating a state of electricity supply of a primary power source through an in-vehicle network. The transformer section outputs a second signal indicating a state of electricity supply of the transformer section. When the input of the first signal is disrupted, the control section limits the driving electricity supplied to the steering motor based on at least one of a value of the secondary voltage and the electricity supply state of the transformer section indicated by the second signal. Accordingly, driving electricity is stably supplied with the steering motor with a simple configuration even if the input of the first signal is disrupted due to a failure in the in-vehicle network.
摘要翻译：变压器部分转换初级电压并输出次级电压。控制部通过车载网络输入表示主电源的供电状态的第一信号。变压器部输出表示变压器部的供电状态的第二信号。当第一信号的输入被中断时，控制部分根据由第二信号指示的变压器部分的次级电压和供电状态的值中的至少一个来限制提供给转向电动机的驱动电力。因此，即使第一信号的输入由于车载网络中的故障而中断，也能够以简单的结构向转向马达稳定地供给驱动电力。

5. 发明申请

US20060232235A1 Power source for a hybrid vehicle 有权
标题翻译：混合动力汽车的动力源
公开(公告)号：US20060232235A1
公开(公告)日：2006-10-19
申请号：US11403879
申请日：2006-04-14
申请人： Masahide Iwazawa
发明人： Masahide Iwazawa
IPC分类号： H02P3/14
CPC分类号： B60L11/1868 , B60L7/16 , Y02T10/7005 , Y02T10/7066
摘要： A power source for a hybrid vehicle is provided which can protect its electric motor driving circuit from being damaged by a back electromotive force generated in a motor. The back electromotive force generated in an electric motor 44 is detected by a high voltage detector circuit 48 and converted by a step-down circuit 46into a low voltage which is then stored in a low-voltage secondary battery 28. Accordingly, as the back electromotive force does not become excessively high, it will be prevented from damaging a switching circuit 42. Also, the back electromotive force generated in the motor 44 is charged in the low-voltage secondary battery 28 and can thus be supplied to a control circuit 40 or any other component, contributing to the reduction of the fuel consumption of the hybrid vehicle.
摘要翻译：提供了一种用于混合动力车辆的动力源，其可以保护其电动机驱动回路免受在电动机中产生的反电动势的损害。在电动机44中产生的反电动势由高电压检测器电路48检测并由降压电路46转换成低电压，然后将其存储在低压二次电池28中。因此，由于反电动势不会变得过高，所以不会损害开关电路42。此外，在电动机44中产生的反电动势被充电在低压二次电池28中，并且因此可以被提供给控制电路40或任何其他组件，有助于降低混合动力车辆的燃料消耗。

6. 发明授权

US07016775B2 Controller and control method for an electric power steering apparatus 失效
公开(公告)号：US07016775B2
公开(公告)日：2006-03-21
申请号：US10314984
申请日：2002-12-10
申请人： Masahide Iwazawa , Kiyotaka Iwata , Akira Ito , Yasushi Yamada
发明人： Masahide Iwazawa , Kiyotaka Iwata , Akira Ito , Yasushi Yamada
IPC分类号： A01B69/00 , B62D11/00 , G01M17/00 , G05B21/02
CPC分类号： B60T8/885 , B60T2270/414 , B62D5/0481
摘要： A controller controls an electric motor to provide assist power corresponding to steering operation for an electric power steering apparatus. The controller comprises a detecting device, a filtering device, a judging device and a determining device. The detecting device detects present voltage of a power source for the electric motor. The filtering device filters the present voltage based on a small time-constant when the voltage of the power source increases and based on a large time-constant when the voltage of the power source decreases. The judging device judges whether the filtered voltage is lower than a predetermined threshold. And, the determining device determines being abnormality of the power source when it is judged that the filtered voltage is lower than the threshold.

7. 发明授权

US06795762B2 Steering apparatus controller for electric power steering apparatus 失效
标题翻译：电动助力转向装置的转向装置控制器
公开(公告)号：US06795762B2
公开(公告)日：2004-09-21
申请号：US10316912
申请日：2002-12-12
申请人： Akira Itoh , Masahide Iwazawa , Kiyotaka Iwata , Yasushi Yamada
发明人： Akira Itoh , Masahide Iwazawa , Kiyotaka Iwata , Yasushi Yamada
IPC分类号： G06F1700
CPC分类号： B62D5/049 , B62D5/0484
摘要： A steering apparatus controller for an electric power steering apparatus, which includes an electric motor for generating assist torque for assisting steering of a steering wheel and the steering apparatus controller is designed to execute a feedback control of the applied drive voltage to the electric motor based on the detection result of the actual current that flows through the motor. A sensor detects the actual current to produce the detection result. When detecting an abnormal decrease of the drive voltage of the sensor, a voltage controller maintains the applied voltage to the electric motor at the voltage at a predetermined time before the drive voltage abnormally decreased.
摘要翻译：一种用于电动助力转向装置的转向装置控制器，其包括用于产生用于辅助方向盘的转向的辅助转矩的电动机和所述转向装置控制器，被设计成基于对所述电动机施加的驱动电压的反馈控制流过电机的实际电流的检测结果。传感器检测实际电流以产生检测结果。当检测到传感器的驱动电压的异常降低时，电压控制器在驱动电压异常降低之前的预定时间将电动机的施加电压保持在电动机上。

8. 发明授权

US06696807B2 Control apparatus of electric power steering 有权
标题翻译：电动助力转向控制装置
公开(公告)号：US06696807B2
公开(公告)日：2004-02-24
申请号：US10320650
申请日：2002-12-17
申请人： Kiyotaka Iwata , Masahide Iwazawa , Akira Itoh , Yasushi Yamada
发明人： Kiyotaka Iwata , Masahide Iwazawa , Akira Itoh , Yasushi Yamada
IPC分类号： A02P700
CPC分类号： B62D5/0484 , B62D5/0487
摘要： A control apparatus of an electric power steering system has calculating means, controlling means, determining means suppressing means, canceling means. Calculating means calculates an assist current value that corresponds to the assist force based on steering torque of a steering wheel. Controlling means executes assist control of the motor based on the assist current value. Determining means determines an abnormality in the circuit. Suppressing means suppresses the assist control when an abnormality in the circuit is determined. If the determination of an abnormality has continued longer than a predetermined time since the suppression of the assist control, the suppressing means opens relay means that permits electric power to be supplied to the motor. When it is determined that the circuit returns to normal with the assist control suppressed, the canceling means cancels the suppression of the assist control.
摘要翻译：电动助力转向系统的控制装置具有计算装置，控制装置，确定装置抑制装置，取消装置。计算装置根据方向盘的转向转矩计算与辅助力对应的辅助电流值。控制装置基于辅助电流值执行电动机的辅助控制。确定装置确定电路中的异常。当确定电路中的异常时，抑制装置抑制辅助控制。如果由于禁止辅助控制而导致异常的判断持续时间超过预定时间，则抑制装置打开允许向电动机供应电力的继电装置。当确定在辅助控制被抑制时电路恢复正常时，取消装置取消对辅助控制的抑制。

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