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    • 1. 发明授权
    • Electric power steering system
    • 电动助力转向系统
    • US07290638B2
    • 2007-11-06
    • US11131354
    • 2005-05-18
    • Kohtaro ShiinoFumiyuki YamaokaTadaaki FujiiToshiro Yoda
    • Kohtaro ShiinoFumiyuki YamaokaTadaaki FujiiToshiro Yoda
    • B62D5/04
    • B62D5/04B62D5/0406B62D5/0421B62D5/046
    • An electric power steering system, includes a torque sensor disposed to a steering shaft to detect a steering torque. A first pinion is disposed to the steering shaft. A rack shaft is in mesh with the first pinion and connected with the steering shaft to change a rotational motion of the steering shaft to an axial motion of the rack shaft and provided to be operated in relation to the steering shaft. A first motor is connected with the first pinion to generate a steering assist torque in accordance with the steering torque detected by the torque sensor. A second pinion is disposed to be separate from the first pinion and in mesh with the rack shaft. A second motor is connected with the second pinion to generate a steering assist torque in accordance with the steering torque. A first control circuit is provided on a first control board for the first motor. A second control circuit is provided on the second control board for the second motor. The first control circuit monitors an abnormality in control state of the second control circuit and the second control circuit monitors an abnormality in control of the first control circuit.
    • 一种电动助力转向系统,包括设置在转向轴上以检测转向转矩的转矩传感器。 第一小齿轮设置在转向轴上。 齿条轴与第一小齿轮啮合并与转向轴连接,以将转向轴的旋转运动改变为齿条轴的轴向运动,并被设置为相对于转向轴操作。 第一电动机与第一小齿轮连接,以根据由转矩传感器检测的转向转矩产生转向辅助转矩。 第二小齿轮设置成与第一小齿轮分离并与齿条轴啮合。 第二电动机与第二小齿轮连接,以根据转向转矩产生转向辅助转矩。 第一控制电路设置在用于第一电动机的第一控制板上。 第二控制电路设置在第二电动机的第二控制板上。 第一控制电路监视第二控制电路的控制状态的异常,第二控制电路监视第一控制电路的控制异常。
    • 2. 发明申请
    • Electric power steering system
    • 电动助力转向系统
    • US20050257992A1
    • 2005-11-24
    • US11131354
    • 2005-05-18
    • Kohtaro ShiinoFumiyuki YamaokaTadaaki FujiiToshiro Yoda
    • Kohtaro ShiinoFumiyuki YamaokaTadaaki FujiiToshiro Yoda
    • B62D6/00B62D5/04B62D5/22B62D119/00F16H19/04
    • B62D5/04B62D5/0406B62D5/0421B62D5/046
    • An electric power steering system for an automotive vehicle, includes a torque sensor disposed to a steering shaft to detect a steering torque. A first pinion is disposed to the steering shaft. A rack shaft is in mesh with the first pinion and connected with the steering shaft to change a rotational motion of the steering shaft to an axial motion of the rack shaft and provided to be operated in relation to the steering shaft. A first motor is connected with the first pinion to generate a steering assist torque in accordance with the steering torque detected by the torque sensor. A second pinion is disposed to be separate from the first pinion and in mesh with the rack shaft. A second motor is connected with the second pinion to generate a steering assist torque in accordance with the steering torque.
    • 一种用于机动车辆的电动助力转向系统,包括设置在转向轴上以检测转向转矩的转矩传感器。 第一小齿轮设置在转向轴上。 齿条轴与第一小齿轮啮合并与转向轴连接,以将转向轴的旋转运动改变为齿条轴的轴向运动,并被设置为相对于转向轴操作。 第一电动机与第一小齿轮连接,以根据由转矩传感器检测的转向转矩产生转向辅助转矩。 第二小齿轮设置成与第一小齿轮分离并与齿条轴啮合。 第二电动机与第二小齿轮连接,以根据转向转矩产生转向辅助转矩。
    • 7. 发明申请
    • STEERING CONTROL APPARATUS
    • 转向控制装置
    • US20100152971A1
    • 2010-06-17
    • US12637882
    • 2009-12-15
    • Kohtaro ShiinoToshiro Yoda
    • Kohtaro ShiinoToshiro Yoda
    • G06F19/00B62D5/30
    • B62D5/0463B62D5/065B62D5/09
    • A steering control apparatus includes a rack shaft connected to steerable wheels and having rack teeth in a given axial range, a first steering mechanism having a reduction gear and a first electric motor to apply a drive force to the rack shaft through the reduction gear, a second steering mechanism having a second electric motor, a power cylinder equipped with hydraulic pressure chambers, an oil pump driven by the second electric motor to provide a supply of hydraulic oil to the hydraulic pressure chambers such that the power cylinder applies a driving force to the rack shaft in accordance with a pressure difference between the hydraulic pressure chambers and a switching unit capable of selectively switching the supply of hydraulic oil from the oil pump to the hydraulic pressure chambers, and a control device that controls the first and second electric motors in response to a driver's steering operation.
    • 转向控制装置包括连接到可转向轮并具有给定轴向范围的齿条齿的齿条轴,具有减速齿轮的第一转向机构和通过减速齿轮向齿条轴施加驱动力的第一电动机, 具有第二电动机的第二转向机构,配备有液压室的动力缸,由第二电动机驱动的油泵,以向液压室供应液压油,使得动力缸向驱动力施加驱动力 根据液压室和能够选择性地切换从油泵向液压室供给液压油的切换单元的压力差的齿条轴,以及响应地控制第一和第二电动机的控制装置 到驾驶员的转向操作。