公开(公告)号：US06763906B1

公开(公告)日：2004-07-20

申请号：US10049554

申请日：2002-02-13

申请人： Fujio Momiyama ,  Mitsuru Enomoto

发明人： Fujio Momiyama ,  Mitsuru Enomoto

IPC分类号： B62D506

CPC分类号： B62D7/144

摘要： A rear part of a vehicle body is supported by a rear-front axle (18) and a rear-rear axle (20), and right and left rear-front wheels (17) rotatably mounted at opposite ends of the rear-front axle (18) are constituted so as to be steered by a steering mechanism. The steering mechanism is driven by an actuator so as to steer the rear-front wheels (17), and the actuator (51) is controlled by the control means. The control means stops the steering of the rear-front wheels (17) when a vehicle speed is approximately zero, and the control means operates the actuator when a difference between a theoretical steering angle of the rear-front wheels (17), relative to that of the front wheels (15), and an actual steering angle exceeds a predetermined value even though the vehicle speed is approximately zero. A substantial part of the carrying load is supported by rear two axles so as to reduce a load exerted to the front wheels, and the rear-front wheels are made steerable in order to prevent tires of the rear-front wheels from being eccentrically worn.

摘要翻译： 车体的后部由后后轴（18）和后后车轴（20）支撑，左后后轮（17）可旋转地安装在后车轴的相对端 （18）构成为通过转向机构转向。 转向机构由致动器驱动以转向后前轮（17），致动器（51）由控制装置控制。 当车速近似为零时，控制装置停止前后轮（17）的转向，并且当前后轮（17）的理论转向角之间的差相对于 即使车速近似为零，前轮（15）和实际转向角的实际转向角也超过了预定值。承载负荷的很大一部分由后两轴支撑，以便减轻施加在前轮 车轮和后前轮是可操纵的，以防止后排前轮的轮胎偏心磨损。

公开(公告)号：US06585074B2

公开(公告)日：2003-07-01

申请号：US09998472

申请日：2001-11-29

申请人： Takafumi Katou ,  Yoshimitsu Akuta ,  Kazuo Matsuura ,  Keiichi Takikawa

发明人： Takafumi Katou ,  Yoshimitsu Akuta ,  Kazuo Matsuura ,  Keiichi Takikawa

IPC分类号： B62D506

CPC分类号： B62D6/00 ,  B62D3/12 ,  Y10T74/1967

摘要： A vehicle steering system includes a rack and pinion mechanism having a pinion functionally coupled to a steering wheel and a rack meshing with the pinion and functionally coupled to steerable wheels and a mechanism for displacing the rack in the axial direction thereof to steer the steerable wheels independently of steering operation initiated by the steering wheel. The rack and pinion mechanism comprises a variable gear ratio rack and pinion mechanism having a variable gear ratio, which is the lowest when the steering wheel is in a neutral position and becomes higher as the steering angle of the steering wheel becomes large.

公开(公告)号：US06484840B1

公开(公告)日：2002-11-26

申请号：US09650392

申请日：2000-08-29

申请人： Nils E. Sevelsted

发明人： Nils E. Sevelsted

IPC分类号： B62D506

CPC分类号： F04C14/24 ,  B62D5/097 ,  B62D5/32 ,  F04C2/103 ,  F04C11/001 ,  F04C15/0073 ,  F04C2220/24

摘要： A hydraulic steering arrangement with a directional valve and a metering pump unit having two hydraulically parallel connected and mechanically parallel operable metering pumps, each having a toothed ring with inner toothing and a gear wheel with outer toothing being able to perform rotary and orbiting movements in the toothed ring. It is desired to extend the life of the metering pumps. For this purpose, a through-going driving part is provided for both gear wheels.

摘要翻译： 具有方向阀和计量泵单元的液压转向装置具有两个液压平行连接和机械并联的可操作的计量泵，每个具有内齿的齿形环和具有外齿的齿轮，其能够执行旋转和轨道运动 齿环。 期望延长计量泵的使用寿命。 为此，为两个齿轮提供贯通驱动部。

公开(公告)号：US06474437B1

公开(公告)日：2002-11-05

申请号：US09720763

申请日：2001-03-05

申请人： Dieter Elser ,  Andreas Braun ,  Wolfgang Zeitz

发明人： Dieter Elser ,  Andreas Braun ,  Wolfgang Zeitz

IPC分类号： B62D506

CPC分类号： B62D5/06

摘要： In a power steering system having hydraulic power support for motor vehicles, a steering gear shaft having a steering wheel is connected to an input element of a steering gear. An output element of the steering gear is connected to wheels of the vehicle to be steered. Two working chambers of a servo motor of a power boosting system can be supplied with a hydraulic medium from a servo pump through a steering valve in accordance with a torque applied in the area of the steering gear shaft input element. Two sensors for detecting an angle of rotation and a torque are provided on the steering gear shaft and on the output element of the steering gear accordingly. After the steering wheel has been released after a steering operation, the wheels to be steered and the steering gear can be returned with hydraulic support. Both the intensity and direction of the hydraulic power support as well as the returning of the wheels to be steered are controlled by a common, electronically controlled electromagnetic valve. In addition, only one steering force sensor and/or torque sensor is provided for detecting the steering force. With this sensor, the control distances can be reduced greatly, thus yielding a high steering accuracy.

摘要翻译： 在具有用于机动车辆的液压动力支撑的动力转向系统中，具有方向盘的转向齿轮轴连接到舵机的输入元件。 舵机的输出元件连接到要转向的车辆的车轮上。 功率增压系统的伺服电动机的两个工作室可以根据施加在转向齿轮轴输入元件的区域中的扭矩从伺服泵通过转向阀提供液压介质。 用于检测旋转角度和扭矩的两个传感器相应地设置在转向齿轮轴和舵机的输出元件上。 方向盘在转向操作后已被释放后，要转向的车轮和舵机可以用液压支撑件返回。 液压动力支架的强度和方向以及要转向的车轮的返回都由普通的电子控制电磁阀控制。 此外，仅提供一个用于检测转向力的转向力传感器和/或扭矩传感器。 使用该传感器，可以大大降低控制距离，从而产生高转向精度。

公开(公告)号：US06431306B1

公开(公告)日：2002-08-13

申请号：US09772140

申请日：2001-01-29

申请人： Phillip A. Bishop ,  Otis Pierson

发明人： Phillip A. Bishop ,  Otis Pierson

IPC分类号： B62D506

CPC分类号： B62D5/0835 ,  B62D6/02

摘要： A fluid power assist rack and pinion steering system (12) for a vehicle having steerable wheels comprises a rack (66) connected with steering linkage of the vehicle for, upon movement of the rack, moving the steering linkage to effect turning of the steerable wheels. A rotatable pinion (64) is in meshing engagement with the rack (66). The steering system (12) also includes a control valve (22) comprising a valve core (40) rotatable relative to a valve sleeve (42). A first part (56) connects the valve sleeve (42) for rotation with the pinion (64). A mechanism (38) resists relative rotation between the valve core (40) and the valve sleeve (42) as vehicle speed increases by placing axial force on the valve sleeve. A second part (170) on the valve sleeve (42) resists axial movement of the valve sleeve relative to the valve core (40).

摘要翻译： 一种用于具有可转向轮的车辆的流体动力辅助齿条和小齿轮转向系统（12）包括与车辆的转向联动相连接的齿条（66），用于在机架移动时，使转向连杆移动以实现可转向轮的转动 。 可旋转小齿轮64与齿条66啮合。 转向系统（12）还包括一个包括可相对于阀套（42）旋转的阀芯（40）的控制阀（22）。 第一部分（56）连接阀套（42）以与小齿轮（64）一起旋转。 机构（38）通过将轴向力放置在阀套上而抵抗车芯（40）和阀套（42）之间的相对转动。 阀套（42）上的第二部分（170）抵抗阀套相对于阀芯（40）的轴向运动。

公开(公告)号：US06412591B1

公开(公告)日：2002-07-02

申请号：US09448503

申请日：1999-11-24

申请人： Shuji Endo ,  Kenichi Hayakawa

发明人： Shuji Endo ,  Kenichi Hayakawa

IPC分类号： B62D506

CPC分类号： B62D3/123 ,  B62D5/0409 ,  B62D5/0466 ,  B62D5/0472 ,  F16H55/283 ,  Y10T74/1967

摘要： An electric power steering apparatus having a rack and pinion movement converting mechanism for converting rotation movement of a steering wheel into linear movement by engagement between a pinion shaft and a rack shaft. A motor for assisting a driver's steering force asserted on the steering wheel is provided along with the rack and pinion movement converting mechanism and, an elastic body is inserted in a mechanism passage from the pinion shaft to an output shaft of the motor to produce system with low load exerted on the steering mechanism and with reduced rattle and reduced influence from frictional force of a power assisting motor.

摘要翻译： 一种电动助力转向装置，具有齿条和小齿轮运动转换机构，用于通过小齿轮轴和齿条轴之间的接合将方向盘的旋转运动转换成线性运动。 与齿条和小齿轮移动转换机构一起设置用于辅助驾驶员在方向盘上断言的驾驶员转向力的电动机，并且将弹性体插入到从小齿轮轴到电动机的输出轴的机构通道中，以产生具有 施加在转向机构上的低负载并且减少了拨浪鼓，并且减轻了来自助力电动机的摩擦力的影响。

公开(公告)号：US06411876B1

公开(公告)日：2002-06-25

申请号：US09945561

申请日：2001-08-31

申请人： Scott Wilson Badenoch

发明人： Scott Wilson Badenoch

IPC分类号： B62D506

CPC分类号： B60G17/0195 ,  B60G17/018 ,  B60G17/06 ,  B60G2400/0513 ,  B60G2400/104 ,  B60G2400/204 ,  B60G2400/40 ,  B60G2500/10 ,  B62D6/00 ,  B62D7/146 ,  B62D7/159

摘要： A rear wheel steering control determines, when desired and actual lateral accelerations of a vehicle have the same direction, an instantaneous dynamic yaw center on a vehicle longitudinal axis in response to the measured vehicle speed. It further determines a cornering radius and an instantaneous Ackerman center as a point at the outer end of the cornering radius extended outward perpendicular to the vehicle longitudinal axis from the instantaneous Ackerman center. The control then directs a rear wheel of the vehicle to be perpendicular to a line connecting the instantaneous Ackerman center to the center of the wheel. The dynamic yaw center, and thus the instantaneous Ackerman center, is preferably shifted rearward with increasing vehicle speed to shift vehicle steering in a direction from oversteer at very low speeds for greater ease of steering in parking maneuvers to understeer for vehicle stability in high speed driving conditions. The method and apparatus preferably include a reverse lock routine to control the rear wheels when the desired and actual lateral accelerations of the vehicle have opposing directions, to control the vehicle in a four wheel drift; and the reverse lock routine may further adjust suspension damping.

摘要翻译： 当车辆的需要和实际的横向加速度具有相同的方向时，后轮转向控制器响应于所测量的车辆速度来确定车辆纵向轴线上的瞬时动态偏航中心。 它进一步确定转弯半径和瞬时阿克曼中心作为从瞬时阿克曼中心垂直于车辆纵向轴线向外延伸的转弯半径的外端处的点。 然后，控制器引导车辆的后轮垂直于将瞬时阿克曼中心连接到车轮中心的线。 优选地，动态偏航中心，因此即时阿克曼中心，随着车辆速度的增加而向后移动，以便在非常低的速度下从过度转向的方向移动车辆转向，以便在停车操纵中更容易地转向，以便在高速驾驶中车辆稳定性不足 条件。 该方法和装置优选地包括当车辆的期望和实际横向加速度具有相反方向时控制后轮的反向锁定程序，以便以四轮漂移来控制车辆; 并且反向锁定程序可以进一步调整悬架阻尼。

公开(公告)号：US06305489B1

公开(公告)日：2001-10-23

申请号：US09431186

申请日：1999-11-01

申请人： Yuji Kariatsumari

发明人： Yuji Kariatsumari

IPC分类号： B62D506

CPC分类号： B62D5/065 ,  B62D6/02

摘要： A power steering apparatus senses a fore-and-aft acceleration of a vehicle which is expressed as a value prefixed with a sign, and a rotation speed Ri of an electric motor is reduced to reduce an assist force in accordance with the acceleration if the value of the sensed vehicle acceleration is positive, and increased to increase the assist force in accordance with the acceleration if the value of the sensed vehicle acceleration is negative (FIG. 4). With this control operation, a consistent steering feeling can be provided even at acceleration or deceleration of the vehicle.

摘要翻译： 动力转向装置感测车辆的前后加速度，其被表示为以符号表示的值，并且电动机的转速Ri减小以根据加速度减小辅助力，如果值 的感测车辆加速度为正，并且如果感测到的车辆加速度的值为负，则增加以根据加速度增加辅助力（图4）。 通过该控制操作，即使在车辆的加速或减速下也能够提供一致的转向感。

公开(公告)号：US06279673B1

公开(公告)日：2001-08-28

申请号：US09376531

申请日：1999-08-18

申请人： Hubert Bohner ,  Martin Moser ,  Wolfgang Schrock

发明人： Hubert Bohner ,  Martin Moser ,  Wolfgang Schrock

IPC分类号： B62D506

CPC分类号： B62D15/025 ,  B60T2201/08 ,  B60T2201/087 ,  B62D1/28

摘要： In order to allow a traffic-lane following device in a vehicle to be used at relatively high vehicle speeds, a steering system is provided with a steering handle and a steering run which couples the steering handle to vehicle steered wheels. A servomotor is coupled to the steering run. A servovalve is arranged in the steering run and has a first control part (which is associated with a section on the steering handle side of the steering run) as well as a second control part (which is associated with a section on the vehicle steered wheel side of the steering run) to operate the servomotor as a function of relative movements between the control parts. An actuating drive is coupled to the section on the steering handle side of the steering run and is used to produce a steering force. A regulating and control arrangement uses a sensor system to determine required steering angle values which allow a traffic lane to be followed and uses a steering angle sensor to determine actual steering angle values. The actuating drive is operated as a function of a comparison of the required and actual steering angles, in which the steering angle sensor interacts with the section on the vehicle steered wheel side of the steering run.

摘要翻译： 为了允许车辆中的行车道跟随装置以相对较高的车速使用，转向系统设置有转向手柄和将转向手柄耦合到车辆转向轮的转向运行。 伺服电机与转向运行相连。 伺服阀设置在转向运行中，并且具有第一控制部分（与转向运行的转向手柄侧的部分相关联）以及第二控制部分（其与车辆转向轮上的部分相关联） 作为转向运行的一侧），作为控制部件之间的相对运动的函数来操作伺服电动机。 致动驱动器联接到转向运行的转向手柄侧的部分，并用于产生转向力。 调节和控制装置使用传感器系统来确定所需的转向角值，其允许跟随行车道并且使用转向角传感器来确定实际的转向角度值。 驱动驱动器是根据所需和实际的转向角的比较来操作的，其中转向角传感器与转向运行的车辆转向轮侧的部分相互作用。

公开(公告)号：US06193008B1

公开(公告)日：2001-02-27

申请号：US09308329

申请日：1999-05-19

申请人： Jens-Uwe Hafermalz

发明人： Jens-Uwe Hafermalz

IPC分类号： B62D506

CPC分类号： B62D5/22 ,  B62D3/123 ,  Y10T74/1967

摘要： In a rack-and-pinion assisted steering system with an elastic connection housing, for example made of plastic arranged between the pinion housing (6) and the cylinder housing, the bearing points of the rack (1) and pinion (2) are not fixed in a housing. The alignment of the pinion axis (A) with the pinion housing is effected via the existing contact line (B) between the rack teeth and the pinion teeth. The rack teeth are pressed without play between the pinion teeth by means of an additional pressure member (7) in the lid (5) of the pressure piece (3) thereby aligning the pinion axis (A) with the pinion housing (6). After the rack-and-pinion assisted steering system is mounted in the vehicle, the pressure member (7) is removed and the effect of the spring-mounted pressure piece (3) is reestablished. The aligned pinion axis (A) ensures a good rolling between pinion and rack teeth.

摘要翻译： 在具有弹性连接壳体的齿条和小齿轮辅助转向系统中，例如由小齿轮壳体（6）和气缸壳体之间的塑料制成的，齿条（1）和小齿轮（2）的支承点不是 固定在房屋里。 小齿轮轴线（A）与小齿轮壳体的对准通过齿条齿和小齿轮齿之间的现有接触线（B）来实现。 通过在压力片（3）的盖（5）中的附加压力构件（7）将齿条齿按压在小齿轮齿之间，从而使小齿轮轴线（A）与小齿轮壳体（6）对准。 在齿轮和小齿轮辅助转向系统安装在车辆中之后，压力构件（7）被移除，弹簧安装的压力件（3）的作用被重新建立。 对齐的小齿轮轴线（A）确保小齿轮和齿条齿之间的良好滚动。