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公开(公告)号：US20040262073A1
公开(公告)日：2004-12-30
申请号：US10610123
申请日：2003-06-30
发明人： Muqtada Husain , Brian Daugherty , John Oynoian
IPC分类号： B62D005/04
摘要： The present invention comprises a steering system selectively operable in one of three modes: steer-by-wire, electronic power assist steering (EPAS), and manual steering. The steer-by-wire system includes a driver interface system (DIS), a road wheel actuator system (RWAS), and a controller for monitoring and implementing the preferred control strategy. The steering system of the present invention operates normally in a steer-by-wire mode. In each of the EPAS mode and manual mode, the controller causes a clutch mechanism to engage, thus creating a mechanical linkage between portions of the DIS and the RWAS. In the EPAS mode, one of the road wheel actuator or the reaction torque generator is available to assist in the steering operation. Alternatively, in the manual mode, both the DIS and the RWAS are deactivated and the vehicle is steerable through entirely mechanical means.
摘要翻译： 本发明包括一种选择性地可操作于以下三种模式之一的转向系统：转向线，电动助力转向（EPAS）和手动转向。 线控转向系统包括驱动器接口系统（DIS），车轮执行器系统（RWAS）和用于监视和实现优选控制策略的控制器。 本发明的转向系统通过线控转向模式正常工作。 在每个EPAS模式和手动模式中，控制器使离合器机构接合，从而在DIS和RWAS的部分之间产生机械联动。 在EPAS模式中，其中一个行车轮致动器或反作用扭矩发生器可用于辅助转向操作。 或者，在手动模式中，DIS和RWAS都被停用，并且车辆通过完全机械的方式可操纵。
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公开(公告)号：US20040238264A1
公开(公告)日：2004-12-02
申请号：US10888895
申请日：2004-07-09
申请人： INA-Schaeffler KG
发明人： Alexander Zernickel , Jorg Wagner
IPC分类号： B62D005/04
CPC分类号： B62D6/10 , B62D5/0403 , F16C19/26 , F16C27/04 , F16C33/34
摘要： An electrically assisted, power steering system for motor vehicles having an input shaft (6) connected to a pinion shaft (2) by a torsionally elastic member (5) is supported in a steering housing (1) by a rolling bearing. The rolling bearing is formed as an elastic, flexible roller bearing (13), whose cylinder rollers (13.5, 13.6) have at least at one peripheral position an elastically deformable cylinder roller (13.6), having a diameter that is slightly greater than a diameter of the other cylinder rollers (13.5). In this way, an exact guidance of the input shaft (6) is achieved, so that the applied steering torque can be used accurately by an evaluation unit (15) for controlling the servo motor (7).
摘要翻译： 一种用于机动车辆的电动助力转向系统，其具有通过扭转弹性构件（5）连接到小齿轮轴（2）的输入轴（6），通过滚动轴承支撑在转向壳体（1）中。 滚动轴承形成为弹性的柔性滚子轴承（13），其圆柱滚子（13.5,13.6）至少在一个周边位置具有可弹性变形的滚筒滚子（13.6），其直径略大于直径 的其他气缸辊（13.5）。 以这种方式，实现输入轴（6）的精确引导，使得可以通过用于控制伺服电动机（7）的评估单元（15）精确地使用所施加的转向扭矩。
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公开(公告)号：US20040238263A1
公开(公告)日：2004-12-02
申请号：US10854246
申请日：2004-05-27
发明人： Takehiro Saruwatari
IPC分类号： B62D005/04
CPC分类号： B62D3/126 , B62D5/0448
摘要： An electric power steering apparatus including: a steering rack shaft which has an external thread with a flat crest and can be moved in the axial direction in response to a steering operation; a ball screw mechanism, which has a nut screwed onto the external thread via balls so as to be relatively rotational, for transforming the rotational force of the electric motor into movement force in the axial direction and transmitting the movement force to the steering rack shaft; and a cylindrical member, which is fitted on the steering rack shaft, for depressing the deflection amount of the steering rack shaft, wherein the width of the flat crest of the external thread is 0.7 to 1.5 times as long as the diameter of the balls. The inner surface of the cylindrical member hardly abrades away even when the external thread contacts with the inner surface of the cylindrical member.
摘要翻译： 一种电动助力转向装置，包括：转向齿条轴，其具有平面波峰的外螺纹，并且可以响应于转向操作而沿轴向移动; 一个滚珠丝杠机构，其具有通过滚珠相对旋转地旋拧到外螺纹上的螺母，用于将电动机的旋转力转换成沿轴向的移动力，并将运动力传递到转向齿条轴; 以及安装在转向齿条轴上的用于压下转向齿条轴的偏转量的圆柱形构件，其中外螺纹的平坦波峰的宽度是球的直径的0.7至1.5倍。 即使当外螺纹与圆柱形构件的内表面接触时，圆柱形构件的内表面几乎不磨损。
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公开(公告)号：US20040200663A1
公开(公告)日：2004-10-14
申请号：US10680203
申请日：2003-10-08
发明人： Takayuki Kifuku , Yasuhiro Hosaka
IPC分类号： B62D005/04
CPC分类号： B62D5/046 , B62D5/0484 , H02M7/487 , H02M7/5387
摘要： In an electric motor-driven power steering apparatus which comprises a bridge circuit for connecting a power source between input terminals and also connecting an electric motor between output terminals and energizes the electric motor by this bridge circuit and operates electric motor power to a steering system, the bridge circuit includes a predetermined number of arms constructed by connecting circuits for connecting switching elements in parallel with diodes in series so that the diodes mutually become reverse polarity.
摘要翻译： 在一种电动机动力转向装置中，包括用于在输入端子之间连接电源的桥接电路，并且还在输出端子之间连接电动机，并且通过该桥接电路使电动机通电并且将电动机功率操作到转向系统， 桥接电路包括由连接电路构成的预定数量的臂，用于将开关元件与二极管串联连接，使得二极管相互变成相反的极性。
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公开(公告)号：US20040200661A1
公开(公告)日：2004-10-14
申请号：US10746965
申请日：2003-12-24
发明人： Nobuo Sugitani , Osamu Tsurumiya
IPC分类号： B62D005/04
CPC分类号： B62D6/008
摘要： In a vehicle steering system, in particular a steer-by-wire system, using a feedback control including an integral control unit in the feedback path, the integral factor of the integral control unit is made variable depending on the condition of the vehicle, road condition and preference of the vehicle operator so that the intensity of the steering reaction from the tires that is applied to the vehicle operator can be optimally adjusted. Thereby, the steering system can reduce the stead-state deviation and improve the stability in holding a steering angle both without any substantial compromise.
摘要翻译： 在车辆转向系统中，特别是线控转向系统，使用包括反馈路径中的积分控制单元的反馈控制，积分控制单元的积分因子根据车辆，道路的状况而变化 条件和偏好，使得可以最佳地调整来自应用于车辆操作者的轮胎的转向反作用强度。 由此，转向系统可以减小转向偏差，提高保持转向角度的稳定性，而不会有任何实质的妥协。
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公开(公告)号：US20040193345A1
公开(公告)日：2004-09-30
申请号：US10402570
申请日：2003-03-28
IPC分类号： B62D005/04
CPC分类号： B62D6/003
摘要： A control system for a steering system in a vehicle comprising: a reference model responsive to an operator input that computes desired states of the vehicle; a feedforward controller in operable communication with the reference model. The feedforward controller computes a first control value based on input from said reference model and based on at least one of: a lateral velocity, a rate of lateral velocity, a lateral acceleration, and a combination, wherein the combination includes a yaw rate with at least one of a lateral velocity, a rate of lateral velocity, and a lateral acceleration of the motor vehicle. The system also includes an actuator for affecting the steering system based on the first control value, the actuator in operable communication with the feedforward controller.
摘要翻译： 一种用于车辆中的转向系统的控制系统，包括：响应于计算车辆的期望状态的操作员输入的参考模型; 与参考模型可操作地通信的前馈控制器。 所述前馈控制器基于来自所述参考模型的输入并基于以下至少一个来计算第一控制值：横向速度，横向速度速率，横向加速度和组合，其中所述组合包括横摆率 机动车辆的侧向速度，侧向速度速率和横向加速度中的至少一个。 该系统还包括用于基于第一控制值影响转向系统的致动器，致动器可与前馈控制器可操作地通信。
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公开(公告)号：US20040186641A1
公开(公告)日：2004-09-23
申请号：US10391057
申请日：2003-03-17
IPC分类号： B62D005/04
摘要： Control method for an electric power steering apparatus feeds back a motor current, flowing through a motor whose operation is controlled in accordance with a target motor current, so that the driving of the motor is controlled with the fed-back motor current. Peak value of the motor current is detected, and, for feedback control based on the detected peak value, the detected peak value is corrected to decrease. The thus-corrected peak value is fed back to control the motor current to conform to a target motor current value.
摘要翻译： 电动助力转向装置的控制方法是反馈电动机电流，流过电动机，其电动机根据目标电动机电流进行控制，从而通过反馈电动机电流来控制电动机的驱动。 检测电动机电流的峰值，并根据检测到的峰值进行反馈控制，校正检测出的峰值以减小。 由此校正的峰值被反馈以控制电动机电流以符合目标电动机电流值。
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公开(公告)号：US20040186640A1
公开(公告)日：2004-09-23
申请号：US10751660
申请日：2004-01-06
发明人： Yasuji Norito
IPC分类号： B62D005/04
CPC分类号： B62D5/046 , B62D5/0463
摘要： An electric power steering apparatus that performs steering assist by transmitting a driving force produced by an electric motor to a steering mechanism. The apparatus is provided with a current detection circuit for detecting a current flowing through the electric motor to output a motor current detection signal, and a microcomputer for controlling the electric motor on the basis of the motor current detection signal. The current detection circuit has a variable gain amplification circuit, to output the motor current detection signal amplified by the variable gain amplification circuit. The microcomputer has an analog-to-digital conversion port to which the motor current detection signal outputted by the current detection circuit is inputted, to receive the motor current detection signal through the analog-to-digital conversion port. The apparatus is further provided with a gain change section for changing the gain of the variable gain amplification circuit.
摘要翻译： 一种电动助力转向装置，其通过将由电动机产生的驱动力传递到转向机构来进行转向辅助。 该装置设置有用于检测流过电动机的电流以输出电动机电流检测信号的电流检测电路，以及基于电动机电流检测信号来控制电动机的微型计算机。 电流检测电路具有可变增益放大电路，输出由可变增益放大电路放大的电动机电流检测信号。 微型计算机具有模拟数字转换端口，由电流检测电路输出的电动机电流检测信号输入到该数字转换端口，以通过模数转换端口接收电动机电流检测信号。 该装置还具有用于改变可变增益放大电路的增益的增益改变部分。
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公开(公告)号：US20040168849A1
公开(公告)日：2004-09-02
申请号：US10483248
申请日：2004-01-09
IPC分类号： B62D005/04
CPC分类号： B62D5/0448 , B62D5/0421 , Y10T74/19749
摘要： An electric power steering apparatus (11) includes a reduction mechanism (G) for transmitting the rotation of a rotating shaft (28a) of a motor (28) to a ball screw nut (20) while reducing the speed of the rotation. The reduction mechanism includes a drive gear (29), which is coaxially connected to the rotating shaft of the motor, and a driven gear (16a), which is arranged on the outer surface of the ball screw nut. Due to the reduction mechanism, the motor may be inclined relative to a rack shaft (18).
摘要翻译： 电动助力转向装置（11）包括用于将马达（28）的旋转轴（28a）的旋转传递到滚珠丝杠螺母（20）的减速机构（G），同时降低旋转速度。 还原机构包括与电动机的旋转轴同轴连接的驱动齿轮（29）和布置在滚珠丝杠螺母的外表面上的从动齿轮（16a）。 由于减速机构，马达可以相对于齿条轴（18）倾斜。
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公开(公告)号：US20040154858A1
公开(公告)日：2004-08-12
申请号：US10765731
申请日：2004-01-26
IPC分类号： B62D005/04
CPC分类号： B62D5/0427 , B62D5/0442
摘要： A steering system for a vehicle, the steering system includes a rack-independent actuator. The rack-independent actuator has component parts isolates from undesirable loads by two universal joints that isolate mechanical components of the actuator from transient loads that may be encountered by the rack or rack housing.
摘要翻译： 一种用于车辆的转向系统，转向系统包括独立于机架的致动器。 独立于机架的致动器具有通过两个万向接头隔离不期望的负载的部件，该万向接头将执行器的机械部件与机架或机架外壳可能遇到的瞬态负载隔离开来。
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