公开(公告)号：US4767129A

公开(公告)日：1988-08-30

申请号：US821998

申请日：1986-01-24

申请人： Yoshimichi Kawamoto ,  Yoshimi Furukawa ,  Tetsuro Hamada ,  Mitsuya Serizawa

发明人： Yoshimichi Kawamoto ,  Yoshimi Furukawa ,  Tetsuro Hamada ,  Mitsuya Serizawa

IPC分类号： B62D7/15 ,  B62D9/00

CPC分类号： B62D7/1545

摘要： Disclosed is an actuator for steering the rear wheels in front and rear wheel steering device for vehicle in which the external forces, such as the self aligning torque of the rear wheels and irregularities of the road surface, which may be applied to the rear wheels are prevented from being transmitted to the actuator for controlling the steering angle of the rear wheels. Thereby, the steering angle of the rear wheels are determined solely by the control action of the front and rear wheel steering device and the motion of the vehicle is not affected by external forces. As a result, the vehicle motion is stabilized. When the force for steering the front wheels is transmitted to the rear wheels to steer them, elimination of the reaction from the road to the actuator prevents undesirable variation in the force required to steer the vehicle or the force required to hold a steering angle. Elimination of reaction to the actuator can be accomplished by worm gears, screw threads and so on in which the lead angle is smaller than the friction angle.

摘要翻译： 公开了一种用于车辆前轮转向装置和后轮转向装置中用于转向后轮的致动器，其中可以施加到后轮的后轮的自对准扭矩和路面的不规则性等外力是 防止被传递到用于控制后轮的转向角的致动器。 因此，后轮的转向角仅由前轮和后轮转向装置的控制动作确定，车辆的运动不受外力的影响。 结果，车辆运动稳定。 当用于转向前轮的力被传递到后轮以转向时，消除从道路到致动器的反作用力可防止转向车辆所需的力或保持转向角所需的力的不期望的变化。 消除对致动器的反应可以通过蜗杆，螺纹等实现，其中导程角小于摩擦角。

公开(公告)号：US4705135A

公开(公告)日：1987-11-10

申请号：US822293

申请日：1986-01-24

申请人： Yoshimichi Kawamoto ,  Yoshimi Furukawa ,  Tetsuro Hamada ,  Mitsuya Serizawa

发明人： Yoshimichi Kawamoto ,  Yoshimi Furukawa ,  Tetsuro Hamada ,  Mitsuya Serizawa

IPC分类号： B62D7/15 ,  B60K17/358

CPC分类号： B62D7/1545

摘要： The front and rear wheel steering device of the present invention not only has a means for allowing the manual selection of a mathematical function which determines the steering angle ratio of the rear wheels relative to the front wheels from a plurality of mathematical functions but also has a means for limiting such a manual selection depending on the condition of the vehicle. Since manual selection of a mathematical function for the steering angle ratio may not be appropriate under certain vehicle conditions, the device of the present invention limits such a manual selection when the vehicle speed, the vehicle acceleration, the shift position of the transmission, the steering speed or the steering acceleration is greater than a certain value. Thereby, the convenience of the manual selection of the steering angle ratio is preserved yet any undesirable vehicle response from improper manual selection of the steering angle ratio is prevented.

摘要翻译： 本发明的前轮和后轮转向装置不仅具有允许手动选择从多个数学函数确定后轮相对于前轮的转向角比的数学函数的装置，而且还具有 用于根据车辆的状况限制这种手动选择的装置。 由于在某些车辆状态下手动选择转向角比的数学函数可能不合适，所以本发明的装置在车速，车辆加速度，变速器的换档位置，转向 转速或转向加速度大于一定值。 因此，保持手动选择转向角比的便利性，防止了由于不正确的手动选择转向角比而导致的不期望的车辆响应。

公开(公告)号：US5096014A

公开(公告)日：1992-03-17

申请号：US333870

申请日：1989-04-04

申请人： Masaru Abe ,  Toru Yasuda ,  Yoshimichi Kawamoto ,  Takashi Kohata

发明人： Masaru Abe ,  Toru Yasuda ,  Yoshimichi Kawamoto ,  Takashi Kohata

IPC分类号： B62D7/14 ,  B62D7/15

CPC分类号： B62D7/1527 ,  B62D7/148

摘要： A four-wheel-steering system includes a rear wheel steering mechanism for turning rear wheels in response to energization of an actuator. A locking device is responsive to de-energization of the actuator for locking gears and a rack shaft to prevent the rear wheels from being turned. The locking device includes a longer arm on which first and second gears are rotatably mounted, a shorter arm pivotally coupled to the longer arm, a stopper coupled to the shorter arm and engageable with the second gear, and a spring acting on the stopper for normally urging the stopper into engagement with the second gear, the actuator comprising an electric motor angularly movable with respect to the second gear.

摘要翻译： 四轮转向系统包括用于响应于致动器的通电而转动后轮的后轮转向机构。 锁定装置响应用于锁定齿轮的致动器的断电和齿条轴，以防止后轮转动。 锁定装置包括长臂，第一和第二齿轮可旋转地安装在该臂上，可枢转地连接到较长臂的较短的臂，连接到较短臂并与第二齿轮接合的止动件，以及作用在止动件上的弹簧 促使止动器与第二齿轮接合，致动器包括相对于第二齿轮成角度地运动的电动马达。

公开(公告)号：US5199523A

公开(公告)日：1993-04-06

申请号：US369085

申请日：1989-06-20

申请人： Masaru Abe ,  Yoshimichi Kawamoto ,  Norio Ukai ,  Takashi Kohata

发明人： Masaru Abe ,  Yoshimichi Kawamoto ,  Norio Ukai ,  Takashi Kohata

IPC分类号： B62D7/14 ,  B62D7/15

CPC分类号： B62D7/1536

摘要： A front and rear wheel steering system for a vehicle which transmits a steering input from a front wheel steering gear box to a rear wheel steering gear box via a coupling shaft as a rotation thereof around its longitudinal line and varies a steering gear ratio of rear wheels to front wheels according to the speed of the vehicle. A steering rod for steering the rear wheels with its longitudinal movement is provided with a crank portion which is engaged with a swing shaft pivotally attached to the coupling shaft via a pivot shaft perpendicular thereto so as to perform a gyrating motion around an extension line of the coupling shaft and thereby move the steering rod along its longitudinal direction to achieve a steering action of the rear wheels. The steering rod can be rotated around its longitudinal line according to the vehicle speed so as to displace the crank portion relative to the extension line of the coupling shaft and change the relationship between the rotational angle of the coupling shaft or the steering input to the front wheel steering gear box and the longitudinal movement of the steering rod or the steering angle of the rear wheels.

摘要翻译： 一种用于车辆的前轮和后轮转向系统，其通过联接轴将其从前轮舵机传递到后轮舵机箱，转向输入沿其纵向线旋转，并且改变后轮的转向齿轮比 根据车辆的速度到前轮。 用于转向后轮的纵向运动的转向杆设置有曲柄部分，该曲柄部分通过与其垂直的枢转轴枢转地连接到联接轴上的摆动轴接合，以便围绕其延伸线执行旋转运动 从而使转向杆沿着其纵向方向移动，以实现后轮的转向动作。 转向杆可以根据车速绕其纵向线旋转，以使曲柄部分相对于联轴器的延长线移动，并改变联轴器或转向输入端的旋转角度与前方的关系 车轮转向齿轮箱和转向杆的纵向运动或后轮的转向角。

公开(公告)号：US4895383A

公开(公告)日：1990-01-23

申请号：US184262

申请日：1988-04-21

申请人： Masaru Abe ,  Yoshimichi Kawamoto ,  Takashi Kohata

发明人： Masaru Abe ,  Yoshimichi Kawamoto ,  Takashi Kohata

IPC分类号： B60G3/18 ,  B62D7/14 ,  B62D7/15 ,  B62D17/00

CPC分类号： B62D17/00 ,  B62D7/1545 ,  B60G2200/46

摘要： A method of and an apparatus for controlling rear road wheel camber of a four-wheel-steerable vehicle having front and rear road wheels steerable in the same or opposite directions. The camber with respect to ground of at least the rear road wheel on the outer side of a cornering curve followed by the vehicle is controlled. The apparatus includes detectors for detecting the direction in which the rear road wheels are steered with respect to the front road wheels, the self-aligning torque on the front road wheels, and the steering force acting on a steering wheel, camber varying devices associated with rear wheel suspensions, actuators for operating the camber varying devices, and a control unit responsive to detected signals from the detectors for applying a control signal to at least one of the actuators to control the camber of at least the rear road wheel on the outer side of the cornering curve when the rear wheels are steered.

摘要翻译： 一种用于控制四轮转向车辆的后轮车轮外倾的方法和装置，其具有可在相同或相反方向上转向的前轮和后轮。 控制车辆后方转弯曲线外侧至少后轮的地面的弯度。 该装置包括用于检测后轮相对于前车轮转向的方向的检测器，前车轮上的自对准转矩以及作用在方向盘上的转向力， 后轮悬架，用于操作外倾变速装置的致动器，以及响应于来自检测器的检测信号的控制单元，用于向至少一个致动器施加控制信号，以控制外侧的至少后轮的弯度 当后轮转向时的转弯曲线。

公开(公告)号：US4836577A

公开(公告)日：1989-06-06

申请号：US137961

申请日：1987-12-24

申请人： Masaru Abe ,  Takashi Kohata ,  Yoshimichi Kawamoto

发明人： Masaru Abe ,  Takashi Kohata ,  Yoshimichi Kawamoto

IPC分类号： B60G9/00 ,  B60G7/00 ,  B60G21/00 ,  B62D7/18 ,  B62D17/00

CPC分类号： B60G21/007 ,  B60G7/006 ,  B60G7/008 ,  B62D17/00 ,  B60G2200/10 ,  B60G2200/31 ,  B60G2200/46 ,  B60G2200/462 ,  B60G2200/464 ,  B60G2202/40 ,  B60G2202/413 ,  B60G2202/422 ,  B60G2204/14 ,  B60G2204/149 ,  B60G2204/416 ,  B60G2204/62 ,  B60G2206/50

摘要： An automobile suspension includes a suspension member coupled to a vehicle body, a disc-shaped actuator mechanism detachably supported on the suspension member, and a knuckle having a swingable support shaft swingably supported for swinging movement about a central pivot through which the axis of the disc-shaped actuator mechanism passes, the knuckle being adapted to support a wheel rotatably. The disc-shaped actuator mechanism includes a pair of actuators disposed thereon at respective positions spaced substantially equally from the central pivot and located on at least one straight line passing through the central pivot, the actuators pivotally supporting the knuckle, respectively, for causing the knuckle to be angularly moved about the central pivot.

摘要翻译： 汽车悬架包括联接到车体的悬挂构件，可拆卸地支撑在悬挂构件上的盘形致动器机构，以及具有可摆动地支撑的可摆动支撑轴的转向节，所述转向节可摆动地支撑，以围绕中心枢轴摆动，通过该中心枢轴， 形状的致动器机构通过，转向节适于支撑轮可旋转。 盘形致动器机构包括一对致动器，其位于与中心枢轴基本上相等的位置上且位于穿过中心枢轴的至少一条直线上的相应位置上，致动器分别枢转地支撑转向节，以使转向节 围绕中心枢轴角度地移动。

公开(公告)号：US4758012A

公开(公告)日：1988-07-19

申请号：US010177

申请日：1987-02-02

申请人： Masami Ogura ,  Yasuharu Oyama ,  Toru Yasuda ,  Masaru Abe ,  Yoshimichi Kawamoto ,  Tsuyoshi Sato

发明人： Masami Ogura ,  Yasuharu Oyama ,  Toru Yasuda ,  Masaru Abe ,  Yoshimichi Kawamoto ,  Tsuyoshi Sato

IPC分类号： B62D7/15 ,  B62D5/06

CPC分类号： B62D7/1527 ,  B62D7/1545

摘要： A steering system for a vehicle having a steering wheel, steerable front wheels and steerable rear wheels. The system comprises a linkage arrangement operatively interconnecting the steering wheel with the front and rear wheels for steering the front and rear wheels in response to operation of the steering wheel. The linkage arrangement includes a mechanical linkage mechanically connected with the steering wheel so as to transmit steering effort. The mechanical linkage is provided with a restoring mechanism for exerting restoring force to said mechanical linkage so as to urge the steering wheel toward a neutral position thereof. Favorable returnability of the steering system is achieved in this arrangement.

摘要翻译： 一种用于具有方向盘，可转向前轮和可转向后轮的车辆转向系统。 该系统包括可操作地将方向盘与前轮和后轮互连的连杆装置，用于响应于方向盘的操作来转向前轮和后轮。 连杆机构包括与方向盘机械连接的机械连杆，以便传递转向力。 机械联动装置设置有用于向所述机械联动装置施加恢复力的恢复机构，以便将方向盘推向其中立位置。 在这种布置中实现了转向系统的良好的可回复性。

公开(公告)号：US5365440A

公开(公告)日：1994-11-15

申请号：US800070

申请日：1991-11-27

申请人： Masaru Abe ,  Yoshimichi Kawamoto ,  Ikuo Nonaga ,  Masataka Izawa

发明人： Masaru Abe ,  Yoshimichi Kawamoto ,  Ikuo Nonaga ,  Masataka Izawa

IPC分类号： B62D6/00 ,  B62D7/14 ,  B62D7/15 ,  B62D101/00 ,  B62D113/00 ,  B62D117/00

CPC分类号： B62D7/159 ,  B62D7/1581

摘要： A four wheel steering system for a motor vehicle with steerable front and rear road wheels, a steering angle sensor for detecting a front wheel steering angle through which the front road wheels are steered, a vehicle speed sensor for detecting a vehicle speed of the motor vehicle, a rear wheel steering mechanism for steering the rear wheels, and a controller for controlling the rear wheel steering mechanism to steer the rear road wheels based on the detected front wheel steering angle and the detected vehicle speed when the front road wheels are steering. The controller controls the rear wheel steering mechanism to steer the rear road wheels in a direction which is opposite to the front road wheels if the detected vehicle speed is relatively low, and also controls the rear wheel steering mechanism to steer the rear road wheels in a direction which is the same as the front road wheels if the detected vehicle speed is relatively high. Furthermore, the controller controls the rear wheel steering mechanism to increase a rear wheel steering angle which through the rear road wheels are steered as the front wheel steering angle increases if a change in the front wheel steering angle is relatively small, and controls the rear wheel steering mechanism to reduce an increase in the rear wheel steering angle if a change in the front wheel steering angle is relatively large.

摘要翻译： 一种用于具有可转向的前轮和后轮的机动车辆的四轮转向系统，用于检测前轮转向的前轮转向角的转向角传感器，用于检测机动车辆的车速的车速传感器 ，用于转向后轮的后轮转向机构，以及控制器，用于根据检测到的前轮转向角和前车轮转向时的检测车速来控制后轮转向机构转向后车轮。 如果检测到的车速相对较低，则控制器控制后轮转向机构以使前后轮与前车轮相反的方向转向，并且还控制后轮转向机构以使后车轮转向 方向与前车轮相同，如果检测到的车速相对较高。 此外，如果前轮转向角的变化相对较小，则控制后轮转向机构增加后轮转向角，该后轮转向角随着前轮转向角度的增加而通过后轮转向，并且控制后轮 转向机构，如果前轮转向角的变化相对较大，则减小后轮转向角的增加。

公开(公告)号：US5083626A

公开(公告)日：1992-01-28

申请号：US109232

申请日：1987-10-16

申请人： Masaru Abe ,  Takashi Kohata ,  Yoshimichi Kawamoto

发明人： Masaru Abe ,  Takashi Kohata ,  Yoshimichi Kawamoto

IPC分类号： B62D5/04 ,  B62D7/15

CPC分类号： B62D7/1581 ,  B60G7/006 ,  B62D5/0427 ,  B62D5/0448 ,  F16C19/54 ,  F16C35/061

摘要： A rear wheel steering device in a four-wheel-steerable vehicle includes a rod member having opposite ends coupled to tie rods for turning rear wheels, an electric motor, and a screw mechanism for converting rotation of the electric motor to axial motion of the rod member. The stator and rotor of the electric motor are disposed coaxially with the rod member, the motor and the screw mechanism being juxtaposed with respect to each other in the axial direction of the rod member. The screw mechanism comprises a threaded portion on the rod member and a nut engaging the threaded portion, the nut being axially pre-loaded.

摘要翻译： 四轮转向车辆中的后轮转向装置包括：杆部件，其相对端连接到用于转动后轮的拉杆;电动机;以及用于将电动机的旋转转换成杆的轴向运动的螺杆机构 会员。 电动机的定子和转子与杆构件同轴设置，电动机和螺杆机构在杆构件的轴向上相对于彼此并置。 螺杆机构包括杆构件上的螺纹部分和与螺纹部分接合的螺母，螺母被轴向预加载。

公开(公告)号：US4853672A

公开(公告)日：1989-08-01

申请号：US88909

申请日：1987-08-24

申请人： Toru Yasuda ,  Yoshimichi Kawamoto ,  Masaru Abe ,  Takashi Kohata

发明人： Toru Yasuda ,  Yoshimichi Kawamoto ,  Masaru Abe ,  Takashi Kohata

IPC分类号： B62D5/04 ,  B62D7/15 ,  B62D15/02

CPC分类号： B62D15/0225 ,  B62D15/023

摘要： A steering angle detector comprises a differential transformer. The steering angle detector includes a rod member extending substantially transversely of the vehicle body and axially movable in response to steering action of the vehicle body, a metallic core mounted on the rod member, and primary and secondary coils disposed around the core in slightly spaced relation thereto.

摘要翻译： 转向角检测器包括差动变压器。 所述转向角检测器包括：杆构件，其大致横向于所述车身延伸并且可以响应于所述车体的转向动作而轴向移动;安装在所述杆构件上的金属芯;以及以所述杆间隔开的方式设置在所述芯周围的主和次级线圈 到此。