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公开(公告)号：US20120271513A1
公开(公告)日：2012-10-25
申请号：US13452321
申请日：2012-04-20
IPC分类号： B62D6/10
CPC分类号： B62D5/0493 , B62D5/0484
摘要： In the event of a failure of a first electric motor drive signal generator, e.g., the microcomputer, which generates a first electric motor drive signal for performing a feedback control, a second electric motor drive signal generator, e.g., a PWM signal generator, which is made up of discrete circuit components, directly converts a steering torque signal into a second electric motor drive signal. An electric motor, which generates the assistive steering force, is driven by the second electric motor drive signal.
摘要翻译： 在第一电动机驱动信号发生器（例如，产生用于执行反馈控制的第一电动机驱动信号的微型计算机）发生故障的情况下，第二电动机驱动信号发生器，例如PWM信号发生器，其中， 由分立电路部件组成，将转向转矩信号直接转换成第二电动机驱动信号。 产生辅助转向力的电动机由第二电动机驱动信号驱动。
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公开(公告)号：US20100263457A1
公开(公告)日：2010-10-21
申请号：US12756283
申请日：2010-04-08
申请人： Atsuhiko YONEDA , Yasuo SHIMIZU
发明人： Atsuhiko YONEDA , Yasuo SHIMIZU
CPC分类号： G01L3/102 , G01L3/103 , H01F10/14 , H01F41/24 , H01L41/125 , Y10T29/49007 , Y10T29/4902
摘要： A magnetostrictive torque sensor includes a single magnetostrictive film disposed on a steering shaft, and first and second coils for detecting changes in a magnetic property of the magnetostrictive film. The single magnetostrictive film includes a first anisotropic region and a second anisotropic region, having respective magnetic anisotropies inverse to each other. The first coil is disposed in confronting relation to the first anisotropic region, whereas the second coil is disposed in confronting relation to the second anisotropic region.
摘要翻译： 磁致伸缩扭矩传感器包括设置在转向轴上的单个磁致伸缩膜，以及用于检测磁致伸缩膜的磁特性变化的第一和第二线圈。 单个磁致伸缩膜包括具有彼此相反的各自的磁各向异性的第一各向异性区域和第二各向异性区域。 第一线圈以与第一各向异性区域相对的方式设置，而第二线圈以与第二各向异性区域相对的方式设置。
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公开(公告)号：US20080099272A1
公开(公告)日：2008-05-01
申请号：US11977267
申请日：2007-10-24
申请人： Yasuo SHIMIZU , Katsuji WATANABE , Atsuhiko YONEDA
发明人： Yasuo SHIMIZU , Katsuji WATANABE , Atsuhiko YONEDA
摘要： Even in the even that, when a steering torque is applied to a steering wheel 11 of an electric power steering system, a pinion shaft 21 of a rack-and-pinion steering gear box 16 is curved by a bending moment generated by a reaction force which a pinion 20 receives from a rack 18, since a steering shaft 14 on which a magnetostriction torque sensor 34 is provided is connected to the pinion shaft 21 via a universal joint 15, the transmission of the bending moment to the steering shaft 14 is made difficult to occur. As a result, the effect imposed by the bending moment on the detection accuracy of the magnetostriction torque sensor 34 provided on the steering shaft 14 can be suppressed to a minimum level.
摘要翻译： 即使在转向转矩施加到电动助力转向系统的方向盘11的情况下，齿条齿轮式转向齿轮箱16的小齿轮轴21由反作用力产生的弯矩弯曲 小齿轮20从齿条18接收，由于设置有磁致伸缩转矩传感器34的转向轴14通过万向接头15连接到小齿轮轴21，从而将弯矩传递到转向轴14 很难发生 结果，可以将由弯矩施加的效果抑制在设置在转向轴14上的磁致伸缩转矩传感器34的检测精度的最低水平。
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