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1. 发明申请

US20090099731A1 Electric power steering system 有权
标题翻译：电动助力转向系统
公开(公告)号：US20090099731A1
公开(公告)日：2009-04-16
申请号：US12286725
申请日：2008-10-01
申请人： Daiji Watanabe , Tomoyuki Hori , Motoaki Kataoka , Shuji Kuramitsu , Takehito Fujii
发明人： Daiji Watanabe , Tomoyuki Hori , Motoaki Kataoka , Shuji Kuramitsu , Takehito Fujii
IPC分类号： B62D6/00
CPC分类号： B62D5/0463 , B62D6/008
摘要： A control unit estimates reverse transfer torque transferred from tires to a steering wheel and calculates an assist gain based on the reverse transfer torque. The control unit calculates basic assist torque demand by multiplying torsion torque detected by a torque sensor by the assist gain. The control unit further calculates assist torque command by adding compensation for stabilization. Since the assist gain is determined based on the reverse transfer torque, actual assist torque is generated in accordance with the force transferred from the road surface. Thus, a driver can operate the steering wheel while feeling the force from the road surface.
摘要翻译：控制单元估计从轮胎转向方向盘的反转传递扭矩，并根据反转传递转矩计算辅助增益。控制单元通过将由扭矩传感器检测出的扭转扭矩乘以辅助增益来计算基本辅助扭矩需求。控制单元通过增加补偿补偿来进一步计算辅助转矩指令。由于辅助增益是基于反向传递转矩确定的，所以根据从路面传递的力产生实际辅助转矩。因此，驾驶员可以在感觉到来自路面的力的同时操作方向盘。

2. 发明授权

US08140222B2 Electric power steering system 有权
标题翻译：电动助力转向系统
公开(公告)号：US08140222B2
公开(公告)日：2012-03-20
申请号：US12286725
申请日：2008-10-01
申请人： Daiji Watanabe , Tomoyuki Hori , Motoaki Kataoka , Shuji Kuramitsu , Takehito Fujii
发明人： Daiji Watanabe , Tomoyuki Hori , Motoaki Kataoka , Shuji Kuramitsu , Takehito Fujii
IPC分类号： G05D1/00 , G01L3/00 , B62D5/04
CPC分类号： B62D5/0463 , B62D6/008
摘要： A control unit estimates reverse transfer torque transferred from tires to a steering wheel and calculates an assist gain based on the reverse transfer torque. The control unit calculates basic assist torque demand by multiplying torsion torque detected by a torque sensor by the assist gain. The control unit further calculates assist torque command by adding compensation for stabilization. Since the assist gain is determined based on the reverse transfer torque, actual assist torque is generated in accordance with the force transferred from the road surface. Thus, a driver can operate the steering wheel while feeling the force from the road surface.
摘要翻译：控制单元估计从轮胎转向方向盘的反转传递扭矩，并根据反转传递转矩计算辅助增益。控制单元通过将由扭矩传感器检测出的扭转扭矩乘以辅助增益来计算基本辅助扭矩需求。控制单元通过增加补偿补偿来进一步计算辅助转矩指令。由于辅助增益是基于反向传递转矩确定的，所以根据从路面传递的力产生实际辅助转矩。因此，驾驶员可以在感觉到来自路面的力的同时操作方向盘。

3. 发明申请

US20090112406A1 Electric power steering controller 有权
标题翻译：电动助力转向控制器
公开(公告)号：US20090112406A1
公开(公告)日：2009-04-30
申请号：US12288503
申请日：2008-10-21
申请人： Takehito Fujii , Motoaki Kataoka , Kunihiko Chiba , Daiji Watanabe
发明人： Takehito Fujii , Motoaki Kataoka , Kunihiko Chiba , Daiji Watanabe
IPC分类号： B62D6/00
CPC分类号： B62D5/0463 , Y10T74/1967
摘要： A correction value calculating section 70 is provided with a pinion shaft torsion angle correction value calculating section 74 and a pinion shaft torsion angular velocity correction value calculating section 75 for calculating a correction value in consideration with the transmission characteristic of the steering assist torque from the electric motor 6 to the steerable vehicle wheel 9. Therefore, the electric motor 6 can generate the steering assist torque compensating for the influence by the transmission characteristic of the steering assist torque from the electric motor 6 to the steerable vehicle wheel 9 by correcting a target value defined by a detection value of the torque sensor 3 with the correction value.
摘要翻译：校正值计算部70设置有小齿轮轴扭转角校正值计算部74和小齿轮轴扭转角速度校正值计算部75，用于根据来自电的转向辅助转矩的传递特性来计算校正值因此，电动马达6可以通过校正目标值，生成通过转向辅助转矩从电动机6到可转向车轮9的转向特性的影响来补偿转向辅助转矩由具有校正值的扭矩传感器3的检测值来确定。

4. 发明授权

US08234041B2 Electric power steering controller 有权
标题翻译：电动助力转向控制器
公开(公告)号：US08234041B2
公开(公告)日：2012-07-31
申请号：US12288503
申请日：2008-10-21
申请人： Takehito Fujii , Motoaki Kataoka , Kunihiko Chiba , Daiji Watanabe
发明人： Takehito Fujii , Motoaki Kataoka , Kunihiko Chiba , Daiji Watanabe
IPC分类号： B62D5/04
CPC分类号： B62D5/0463 , Y10T74/1967
摘要： A correction value calculating section 70 is provided with a pinion shaft torsion angle correction value calculating section 74 and a pinion shaft torsion angular velocity correction value calculating section 75 for calculating a correction value in consideration with the transmission characteristic of the steering assist torque from the electric motor 6 to the steerable vehicle wheel 9. Therefore, the electric motor 6 can generate the steering assist torque compensating for the influence by the transmission characteristic of the steering assist torque from the electric motor 6 to the steerable vehicle wheel 9 by correcting a target value defined by a detection value of the torque sensor 3 with the correction value.
摘要翻译：校正值计算部70设置有小齿轮轴扭转角校正值计算部74和小齿轮轴扭转角速度校正值计算部75，用于根据来自电的转向辅助转矩的传递特性来计算校正值因此，电动马达6可以通过校正目标值，生成通过转向辅助转矩从电动机6到可转向车轮9的转向特性的影响来补偿转向辅助转矩由具有校正值的扭矩传感器3的检测值来确定。

5. 发明授权

US08265828B2 Control apparatus for electric power steering system 有权
标题翻译：电动助力转向系统控制装置
公开(公告)号：US08265828B2
公开(公告)日：2012-09-11
申请号：US12800458
申请日：2010-05-14
申请人： Daiji Watanabe , Motoaki Kataoka , Tomoyuki Hori
发明人： Daiji Watanabe , Motoaki Kataoka , Tomoyuki Hori
IPC分类号： A01B69/00
CPC分类号： B62D5/0466
摘要： The control apparatus for an electric power steering system is designed to satisfy the first spec that a first relation characteristic between speed of the electric motor to generate steering assist force and the steering wheel torque is the same as a basic relation characteristic in which the electric motor is driven in accordance with a basic assist amount calculated on the basis of the measured steering torque not corrected by an assist compensation amount calculated depending on the operating state of the electric power steering system, and to satisfy the second spec that a second relation characteristic between speed of the electric motor and a road surface reaction force is such that speed of the electric motor is suppressed compared to a case where the electric motor is driven in accordance with the basic relation characteristic.
摘要翻译：电动助力转向系统的控制装置被设计为满足第一规格，即产生转向辅助力的电动机的速度与方向盘转矩之间的第一关系特性与电动机的基本关系特性相同根据不是根据电动助力转向系统的运转状态计算出的辅助补偿量而校正的测量转向转矩而计算的基本辅助量被驱动，并且为了满足第二规格，第二关系特性是与根据基本关系特性驱动电动机的情况相比，电动机的速度和路面反作用力使得电动机的速度被抑制。

6. 发明申请

US20100292896A1 Control apparatus for electric power steering system 有权
标题翻译：电动助力转向系统控制装置
公开(公告)号：US20100292896A1
公开(公告)日：2010-11-18
申请号：US12800458
申请日：2010-05-14
申请人： Daiji Watanabe , Motoaki Kataoka , Tomoyuki Hori
发明人： Daiji Watanabe , Motoaki Kataoka , Tomoyuki Hori
IPC分类号： G06F19/00 , B62D5/04
CPC分类号： B62D5/0466
摘要： The control apparatus for an electric power steering system is designed to satisfy the first spec that a first relation characteristic between speed of the electric motor to generate steering assist force and the steering wheel torque is the same as a basic relation characteristic in which the electric motor is driven in accordance with a basic assist amount calculated on the basis of the measured steering torque not corrected by an assist compensation amount calculated depending on the operating state of the electric power steering system, and to satisfy the second spec that a second relation characteristic between speed of the electric motor and a road surface reaction force is such that speed of the electric motor is suppressed compared to a case where the electric motor is driven in accordance with the basic relation characteristic.
摘要翻译：电动助力转向系统的控制装置被设计为满足第一规格，即产生转向辅助力的电动机的速度与方向盘转矩之间的第一关系特性与电动机的基本关系特性相同根据不是根据电动助力转向系统的运转状态计算出的辅助补偿量而校正的测量转向转矩而计算的基本辅助量被驱动，并且为了满足第二规格，第二关系特性是与根据基本关系特性驱动电动机的情况相比，电动机的速度和路面反作用力使得电动机的速度被抑制。

7. 发明申请

US20100204889A1 ELECTRIC POWER STEERING SYSTEM DESIGNED TO GENERATE TORQUE FOR ASSISTING DRIVER'S TURNING EFFORT 有权
标题翻译：电动转向系统设计用于产生用于辅助驱动器的转速的扭矩
公开(公告)号：US20100204889A1
公开(公告)日：2010-08-12
申请号：US12705029
申请日：2010-02-12
申请人： Daiji Watanabe , Motoaki Kataoka , Tomoyuki Hori
发明人： Daiji Watanabe , Motoaki Kataoka , Tomoyuki Hori
IPC分类号： G06F19/00
CPC分类号： B62D5/0463 , B62D5/0466
摘要： In an electric power steering system installed in a vehicle and designed to generate, by a motor, assist torque for assisting the driver's turning effort of the steering wheel, a self-aligning torque determiner determines a value of self aligning torque applied to the vehicle. A commanded-value generator determines a value of an assist ratio based on a predetermined relationship between a variable of the self aligning torque and a variable of the assist ratio. The assist ratio represents a ratio of share of torque by the motor for compensating the self aligning torque. The commanded-value generator generates, based on the self aligning torque and the value of the assist ratio, a commanded value for the assist torque. An assist torque determiner determines the assist torque based on the commanded value for the assist torque generated by the commanded-value generator.
摘要翻译：在安装在车辆中并被设计成通过电动机产生辅助转矩以帮助驾驶员转向方向盘的转向力的电动助力转向系统中，自动调心扭矩确定器确定施加到车辆的自对准转矩的值。指令值发生器基于自对准转矩的变量与辅助比的变量之间的预定关系来确定辅助比的值。助力比表示用于补偿自动对准转矩的电动机的转矩份额之比。指令值发生器基于自对准转矩和辅助比的值生成辅助转矩的指令值。辅助转矩确定器基于由指令值发生器产生的辅助转矩的指令值来确定辅助转矩。

8. 发明申请

US20090056474A1 Electric power steering system 失效
标题翻译：电动助力转向系统
公开(公告)号：US20090056474A1
公开(公告)日：2009-03-05
申请号：US12231395
申请日：2008-09-02
申请人： Daiji Watanabe , Motoaki Kataoka , Kunihiko Chiba , Tomoyuki Hori
发明人： Daiji Watanabe , Motoaki Kataoka , Kunihiko Chiba , Tomoyuki Hori
IPC分类号： G01L3/10
CPC分类号： B62D6/008 , B62D5/0463
摘要： In an electric power assisting system for a vehicle, a control unit receives an input shaft rotation angle detected by an input shaft rotation angle sensor and an output shaft rotation angle detected by an output shaft rotation angle sensor. The control unit controls rotation of a motor based on the detected two rotation angles. The control unit differently controls the rotation of the motor whether torque is applied from a steering wheel side or from a road surface side.
摘要翻译：在车辆用电力辅助系统中，控制单元接收由输入轴旋转角度传感器检测的输入轴旋转角度和输出轴旋转角度传感器检测出的输出轴旋转角度。控制单元基于检测到的两个旋转角度来控制马达的旋转。无论从方向盘一侧还是从路面侧施加扭矩，控制单元不同地控制电机的旋转。

9. 发明申请

US20130060426A1 ELECTRIC POWER STEERING CONTROL DEVICE 审中-公开
标题翻译：电动转向控制装置
公开(公告)号：US20130060426A1
公开(公告)日：2013-03-07
申请号：US13597642
申请日：2012-08-29
申请人： Daiji Watanabe , Tomoyuki Hori , Motoaki Kataoka
发明人： Daiji Watanabe , Tomoyuki Hori , Motoaki Kataoka
IPC分类号： B62D6/08 , G06F17/00 , B62D5/04
CPC分类号： B62D5/0463
摘要： In an electric power steering control device, a target assist torque calculation unit calculates a target assist torque or a target current, and a current control unit calculates a basic current instruction so that an actual current Im flowing in an electric motor becomes equal to the target current. An output of the unit is adjusted on the basis of an output of a stable current compensation unit. The unit uses a transfer function Gi expressed by using a differential operator s of not more than fourth order terms. The unit generates a compensation instruction on the basis of the actual current Im in order to produce stable operation of the entire system. A motor drive unit receives a current instruction adjusted on the basis of the compensation instruction, and controls the current flowing in the electric motor.
摘要翻译：在电动助力转向控制装置中，目标辅助转矩计算单元计算目标辅助转矩或目标电流，电流控制单元计算基本电流指令，使得在电动机中流动的实际电流Im变为等于目标当前。基于稳定电流补偿单元的输出来调整单元的输出。该单元使用通过使用不超过四阶项的微分算子s表示的传递函数Gi。该单元基于实际电流Im生成补偿指令，以便产生整个系统的稳定运行。马达驱动单元接收基于补偿指令调整的当前指令，并控制电动机中流动的电流。

10. 发明授权

US08219285B2 Electric power steering system designed to generate torque for assisting driver's turning effort 有权
标题翻译：电动助力转向系统设计用于产生扭矩以辅助驾驶员的转弯努力
公开(公告)号：US08219285B2
公开(公告)日：2012-07-10
申请号：US12705029
申请日：2010-02-12
申请人： Daiji Watanabe , Motoaki Kataoka , Tomoyuki Hori
发明人： Daiji Watanabe , Motoaki Kataoka , Tomoyuki Hori
IPC分类号： B62D6/00
CPC分类号： B62D5/0463 , B62D5/0466
摘要： In an electric power steering system installed in a vehicle and designed to generate, by a motor, assist torque for assisting the driver's turning effort of the steering wheel, a self-aligning torque determiner determines a value of self aligning torque applied to the vehicle. A commanded-value generator determines a value of an assist ratio based on a predetermined relationship between a variable of the self aligning torque and a variable of the assist ratio. The assist ratio represents a ratio of share of torque by the motor for compensating the self aligning torque. The commanded-value generator generates, based on the self aligning torque and the value of the assist ratio, a commanded value for the assist torque. An assist torque determiner determines the assist torque based on the commanded value for the assist torque generated by the commanded-value generator.
摘要翻译：在安装在车辆中并被设计成通过电动机产生辅助转矩以帮助驾驶员转向方向盘的转向力的电动助力转向系统中，自动调心扭矩确定器确定施加到车辆的自对准转矩的值。指令值发生器基于自对准转矩的变量与辅助比的变量之间的预定关系来确定辅助比的值。助力比表示用于补偿自动对准转矩的电动机的转矩份额之比。指令值发生器基于自对准转矩和辅助比的值生成辅助转矩的指令值。辅助转矩确定器基于由指令值发生器产生的辅助转矩的指令值来确定辅助转矩。

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