公开(公告)号：US06607252B2

公开(公告)日：2003-08-19

申请号：US09682446

申请日：2001-09-04

申请人： Jiansheng Weng ,  Thomas Michael Dalka ,  Wei-Yi Loh

发明人： Jiansheng Weng ,  Thomas Michael Dalka ,  Wei-Yi Loh

IPC分类号： B60T1708

CPC分类号： F16D55/226 ,  B60T8/00 ,  B60T8/42 ,  B60T17/06 ,  F16D2121/02 ,  Y10S303/10

摘要： A brake system for a vehicle having wheels. The brake system includes a brake housing and a flow chamber housing. The brake housing includes a friction element being adapted to move to engage a portion of the wheels for inhibiting rotation of the wheels. The flow chamber housing includes a substantially circular flow chamber and a brake fluid line. The substantially circular chamber housing includes an enlarged flow chamber has a circumferential wall and a peripheral wall and a pair of opposite walls. The enlarged flow chamber is fluidly interconnected to the brake housing for supplying fluid to the brake housing for moving the friction element. The brake fluid line is connected substantially tangentially to the circumferential wall of the flow chamber housing includes a first fluid line connected to the peripheral wall of the enlarged flow chamber and a master cylinder fluid line connected to one of the pair of substantially circular flow chamber whereby oppositely facing walls of the enlarged flow chamber. A pressure wave in the fluid entering the substantially circular enlarged flow chamber from the first fluid line will be forced to move in a substantially circular path reflect off of the peripheral wall at a plurality of points to thereby dissipate the pressure wave.

摘要翻译： 一种车轮制动系统。 制动系统包括制动器壳体和流动室壳体。 制动器壳体包括摩擦元件，其适于移动以接合车轮的一部分以阻止车轮的旋转。 流动室壳体包括基本上圆形的流动室和制动流体管线。 基本圆形的腔室壳体包括具有圆周壁和周壁以及一对相对壁的扩大流动室。 扩大的流动室流体地互连到制动器壳体，以将流体供应到制动器壳体以移动摩擦元件。 制动流体管线基本上切向地连接到流动室的周壁，包括连接到扩大流动室的周壁的第一流体管线和连接到一对基本圆形的流动室中的一个的主缸流体管线，由此 扩大的流动室的相对面对的壁。 从第一流体管路进入基本圆形的扩大流动室的流体中的压力波将被迫在多个点处从周壁反射出的大致圆形路径中移动，从而消散压力波。

公开(公告)号：US06752425B2

公开(公告)日：2004-06-22

申请号：US10065555

申请日：2002-10-30

申请人： Wei-Yi Loh ,  Thomas Michael Dalka ,  Rena Hecht Basch ,  Jiansheng Weng

发明人： Wei-Yi Loh ,  Thomas Michael Dalka ,  Rena Hecht Basch ,  Jiansheng Weng

IPC分类号： B62D116

CPC分类号： B62D7/224 ,  F16F9/535

摘要： A magnetorheological (MR) vibration damper for damping axial and rotational vibrations of an automotive steering system may include a housing encasing MR fluid therein and a gear-like rotor and orifice plate disposed within the housing. The rotor and orifice plate, which may be affixed to the steering wheel shaft, includes a plurality of gear-like teeth on its surface and a plurality of holes for producing shear and normal forces, respectively, on the MR fluid. Electric coils may be disposed within the housing for generating an electric field for activating the MR fluid. The MR vibration damper may be activated or deactivated by a controller by comparing a signal value from a steering wheel vibration sensor to a predetermined threshold value. The controller may be programmable by a user to increase or decrease the predetermined threshold value, so as to enable customization of driving feel.

摘要翻译： 用于阻尼汽车转向系统的轴向和旋转振动的磁流变（MR）振动阻尼器可包括其中包含MR流体的壳体和设置在壳体内的齿轮状转子和孔板。 可以固定到方向盘轴的转子和孔板在其表面上包括多个齿轮状齿，并且分别在MR流体上产生剪切力和法向力的多个孔。 电线圈可以设置在壳体内以产生用于激活MR流体的电场。 可以通过将来自方向盘振动传感器的信号值与预定阈值进行比较，由控制器来激活或停用MR振动阻尼器。 控制器可以由用户编程以增加或减少预定阈值，以便能够定制驾驶感觉。

公开(公告)号：US06681883B2

公开(公告)日：2004-01-27

申请号：US10063020

申请日：2002-03-12

申请人： Wei-Yi Loh ,  Thomas Micheal Dalka ,  Weiping Zhu ,  Jiansheng Weng

发明人： Wei-Yi Loh ,  Thomas Micheal Dalka ,  Weiping Zhu ,  Jiansheng Weng

IPC分类号： B60D162

CPC分类号： B62D5/22 ,  B62D7/22 ,  F16F7/082

摘要： A system for reducing steering nibble and other vibrations in a power-assisted steering system increases the amount of damping force when a power steering boost system is applying little or no steering force to the steering actuator, and reduces the amount of damping force when the power boost system is applying significant steering force to the steering actuator. A damping member is formed of a polymer material and is urged into contact with the steering actuator by a spring-biased clamping member. A shuttle valve regulates pressure from the hydraulic steering boost system to overcome the spring biasing force whenever hydraulic pressure is applied to the steering actuator. The preload of the spring biasing mechanism is varied by an electronic control unit that receives inputs from a driver-activated switch, and from vehicle condition sensors to allow automatic, adaptive adjustment of the damping to optimize driving comfort and safety.

摘要翻译： 一种用于在动力辅助转向系统中减少转向半刚性和其它振动的系统增加了当动力转向助力系统对转向致动器施加很少或没有转向力时的阻尼力的量，并且当功率 升压系统向转向执行器施加显着的转向力。 阻尼构件由聚合物材料形成，并且通过弹簧偏置的夹持构件被推动与转向致动器接触。 梭液阀调节来自液压转向助力系统的压力，以克服当向转向致动器施加液压时的弹簧偏压力。 弹簧偏置机构的预加载由接收来自驾驶员激活的开关的输入的电子控制单元以及来自车辆状态传感器的变化，以允许对阻尼的自动适应性调整，以优化驾驶舒适性和安全性。

公开(公告)号：US06322160B1

公开(公告)日：2001-11-27

申请号：US09547453

申请日：2000-04-12

申请人： Wei-Yi Loh ,  Isiah Charles White ,  Weiping Zhu

发明人： Wei-Yi Loh ,  Isiah Charles White ,  Weiping Zhu

IPC分类号： B60T1704

CPC分类号： B60T17/00 ,  B60T8/42

摘要： A damper (40) for damping tactile vibration (FIG. 4) caused by pressure changes induced in hydraulic fluid by an operational characteristic of a hydraulic-operated brake (22; 24) when the brake is braking a rotating object (14; 16). A piston (54) is displaceable within a housing bore (52) and divides the bore into a first chamber (56) confronting one axial face of the piston and a second chamber (58) confronting an opposite axial face of the piston. A port (59) communicates hydraulic fluid to the first chamber such that increasing hydraulic fluid pressure is effective to displace the piston toward the second chamber. A spring (60) that is operated by displacement of the piston within the bore resists piston displacement toward the second chamber as hydraulic fluid pressure increases and aids piston displacement toward the first chamber as hydraulic fluid pressure decreases. The invention is useful in hydraulic-operated motor vehicle brakes.

摘要翻译： 一种用于在制动器制动旋转物体（14; 16）时由液压操纵制动器（22; 24）的操作特性引起的在液压流体中引起的压力变化引起的触觉振动（图4）的阻尼器（40） 。 活塞（54）可以在壳体孔52内移动，并且将孔分成面对活塞的一个轴向面的第一腔室56和面对活塞的相对的轴向面的第二腔室58。 端口（59）将液压流体传送到第一室，使得增加的液压流体压力有效地使活塞朝向第二室移动。 当液压流体压力增加时，通过活塞在孔内移动而操作的弹簧（60）抵抗朝向第二腔室的活塞位移，并且当液压流体压力降低时帮助活塞向第一腔室移动。 本发明在液压动力汽车制动器中是有用的。