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    • 4. 发明授权
    • Emulator damping mechanism
    • 仿真器阻尼机构
    • US6014862A
    • 2000-01-18
    • US48491
    • 1998-03-26
    • Schuyler Scott ShawDonald Edward Schenk
    • Schuyler Scott ShawDonald Edward Schenk
    • B60T7/04B60T11/20B60T11/232F15B13/14F15B21/12
    • B60T11/20B60T11/232B60T7/042F15B13/14
    • A brake system includes a pedal feel emulator and a master cylinder with a damping mechanism having a damping piston. When the emulator piston is moved from the at-rest position, fluid is displaced from the emulator through a compensation port and through a flow restrictive orifice in the damping piston to the reservoir. Flow rate of the fluid is dependent on the apply rate of the brake pedal. When the brake pedal is applied relatively slowly, sufficient flow volume will occur through the flow restrictive orifice and the damping piston will remain unmoved. As apply rates increase, a sufficient pressure differential will eventually be established across the damping piston to cause it to move. Damping piston movement compensates for rapid fluid displacement out of the variable chamber and enables a desirable pedal feel characteristic where pedal force increases relatively slowly as pedal velocity increases relatively rapidly. As the damping piston movement provides increasing volume, the pressure differential drops across the damping piston and it will cease to move as flow is accommodated solely through the flow restrictive orifice. As this occurs, pedal force will increase more rapidly providing a two-stage damping characteristic.
    • 制动系统包括踏板感觉模拟器和具有阻尼机构的主缸,该阻尼机构具有阻尼活塞。 当仿真器活塞从静止位置移动时,流体从仿真器通过补偿端口并通过阻尼活塞中的限流孔移动到储存器。 流体的流速取决于制动踏板的施加率。 当制动踏板相对缓慢地施加时,通过限流孔会发生足够的流量,并且阻尼活塞将保持不动。 当施加率增加时,将最终在阻尼活塞上建立足够的压力差,以使其移动。 阻尼活塞运动补偿了可变腔室中的快速液体位移,并且能够提供令人满意的踏板感觉特性,其中踏板力相对较慢地增加,因为踏板速度相对快速地增加。 随着阻尼活塞的运动提供增加的体积,压力差通过阻尼活塞而下降,并且当流仅容纳通过限流孔口时,其将停止移动。 当发生这种情况时,踏板力将增加更快,提供两级阻尼特性。
    • 6. 发明授权
    • Dual reaction ratio power booster
    • 双反应比增压器
    • US6006649A
    • 1999-12-28
    • US163127
    • 1998-09-29
    • Donald Lee ParkerDonald Edward SchenkGary Chris FulksVivek V. Mohile
    • Donald Lee ParkerDonald Edward SchenkGary Chris FulksVivek V. Mohile
    • B60T13/565B60T13/575F15B9/10
    • B60T13/575B60T13/565
    • A power booster is operable at relatively low apply rates and at relatively high apply rates and includes an input assembly that has a movable input rod and a primary reaction piston having a first reaction area. An output support body is responsive to movement of the input rod, with a resilient reaction disc engaging the output support body. A secondary reaction body has a second reaction area and is engageable with the reaction disc and transfers loads between the reaction disc and the input assembly at relatively low apply rates. The amount of the load transferred is a function of both the first reaction area and the second reaction area at the relatively low apply rates resulting in a first reaction ratio. The primary reaction piston is engageable with the reaction disc and transfers loads between the output support body and the input assembly during relatively high apply rates. The amount of the load transferred is solely a function of the first reaction area at the relatively high apply rates resulting in a second reaction ratio that is smaller in magnitude than the first reaction ratio.
    • 助力器可以相对低的施加率和较高的施加率操作,并且包括具有可移动的输入杆和具有第一反应区域的初级反作用活塞的输入组件。 输出支撑体响应于输入杆的移动,弹性反作用盘与输出支撑体接合。 二次反应体具有第二反应区域并且可与反应盘接合并且以相对低的施加速率在反应盘和输入组件之间传递负载。 在相对低的施加速率下,转移的负载量是第一反应区域和第二反应区域的函数,导致第一反应比。 主反应活塞可与反作用盘接合,并在相对高的施加速率下在输出支撑体和输入组件之间传递负载。 在相对高的施加率下,转移的负载量仅仅是第一反应区域的函数,导致第二反应比的量级小于第一反应比。
    • 9. 发明授权
    • Zero drag disc brake with anti-knock-back device
    • 零拖盘式制动器带防倒装置
    • US06481543B1
    • 2002-11-19
    • US09633942
    • 2000-08-08
    • Schuyler Scott ShawBryan Peter RiddifordJohn Benjamin HagemanDonald Edward SchenkDavid Bernard Drennen
    • Schuyler Scott ShawBryan Peter RiddifordJohn Benjamin HagemanDonald Edward SchenkDavid Bernard Drennen
    • F16D5502
    • F16D65/18F16D65/567F16D2065/386F16D2121/02F16D2121/24F16D2127/06
    • A disc brake caliper assembly is provided that includes a housing having a bore. A piston is arranged within the bore and is movable between normal retracted and knock-back positions. A linkage is adjacent to the piston and is movable between first and second positions with a clearance between the piston and the linkage in the first position. The clearance undesirably permits the piston to move to the knock-back position during severe operating conditions. An actuator, which also may be used as part an electric parking brake, moves the linkage from the first position to the second position to eliminate the clearance when the linkage is moved from the first position to the second position where the linkage abuts the piston. The linkage is connected to the caliper housing by a support. The linkage prevents the piston from moving from the normal retracted position to the knock-back position. In operation, the present invention prevents piston knock-back by sending an adjustment signal from a controller to the actuator at a predetermined interval. The signal commands the actuator to move a linkage from the first to the second position where the linkage abuts the piston. In this manner, the linkage prevents the piston from moving from a normal retracted position to a knock-back position.
    • 提供了一种盘式制动钳组件,其包括具有孔的壳体。 孔内布置有活塞,并可在正常的缩回位置和倒退位置之间移动。 联动装置与活塞相邻,并且可在第一和第二位置之间移动,在第一位置中活塞与联动装置之间具有间隙。 在严格的操作条件期间,间隙不期望地允许活塞移动到撞击位置。 也可以用作电动驻车制动器的部件的致动器将联动装置从第一位置移动到第二位置,以便当联动装置从第一位置移动到联动装置邻接活塞的第二位置时消除间隙。 连杆通过支撑件连接到卡钳外壳。 联动装置防止活塞从正常缩回位置移动到敲击位置。 在操作中,本发明通过以预定的间隔将调节信号从控制器发送到致动器来防止活塞翻倒。 信号命令致动器将连杆从第一位置移动到第二位置,在该位置,联动装置邻接活塞。 以这种方式,联动装置防止活塞从正常缩回位置移动到敲击位置。