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    • 2. 发明授权
    • Electro-hydraulic brake apply system displacement augmentation
    • 电动液压制动器应用系统位移增大
    • US6082831A
    • 2000-07-04
    • US64337
    • 1998-04-22
    • John Benjamin HagemanErnst Severin BaumgartnerDonald Edward Schenk
    • John Benjamin HagemanErnst Severin BaumgartnerDonald Edward Schenk
    • B60T8/32B60T8/40B60T8/42B60T8/48B60T13/74B60T8/36B60T11/08F15B7/04
    • B60T8/326B60T13/745B60T8/4072B60T8/4266B60T8/4863
    • A brake apply system includes a modulator that has a first bore carrying a power driven dual-effect piston. The piston has a base piston surface and an augmentation piston surface. A wheel brake is hydraulically connected to the modulator through an open fluid communication route that is provided between the wheel brake and the base piston surface. A selectively open fluid communication route is provided between the wheel brake and the augmentation piston surface with a check valve mechanism positioned in the selectively open fluid communication route. An augmentation chamber is defined adjacent the augmentation surface of the dual-effect piston. The modulator includes a second bore carrying a valve mechanism that provides an open flow path between the augmentation chamber and a reservoir when pressure at the wheel brake is relatively high and that significantly restricts the flow path when the wheel brake pressure is relatively low. Through this mechanism the augmentation surface is added to the base piston surface for a dual-effect pressure generation area that increases the initial pressurization rate of the brake apply system. Advantageously, the faster the apply rate of the braking system, the greater the augmentation pressure and displacement that is available.
    • 制动施加系统包括具有承载动力驱动的双重作用活塞的第一孔的调节器。 活塞具有基座活塞表面和增强活塞表面。 车轮制动器通过设置在车轮制动器和基座活塞表面之间的开放的流体连通路径与调制器液压连接。 在车轮制动器和增压活塞表面之间设有选择性开放的流体连通路径,其中止回阀机构位于选择性打开的流体通道中。 在双效活塞的增强表面附近限定增强室。 该调节器包括一个带有阀机构的第二孔,该阀机构在车轮制动器的压力相对较高时,在增压室和储存器之间提供开放的流动路径,并且当车轮制动压力相对较低时,可显着限制流路。 通过该机构,增加表面被添加到基座活塞表面,用于增加制动施加系统的初始加压速率的双重效应压力产生区域。 有利地,制动系统的施加速率越快,增加压力和可用位移就越大。
    • 4. 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。
    • 6. 发明授权
    • Electro-hydraulic actuator for motor vehicle brake
    • 机动车刹车用电动液压执行机构
    • US06305758B1
    • 2001-10-23
    • US09270560
    • 1999-03-16
    • John Benjamin HagemanDonald Edward SchenkSchuyler Scott Shaw
    • John Benjamin HagemanDonald Edward SchenkSchuyler Scott Shaw
    • B60T842
    • B60T13/745B60T8/326B60T8/4072B60T8/4081
    • An electro-hydraulic actuator for a motor vehicle brake-by-wire brake system including a housing, a piston bore in the housing, a T-shaped piston in the piston bore, and an electric motor connected to the piston through a speed reducer. The T-shaped piston includes a disc-shaped head in the piston bore and a tubular stem perpendicular slidable in and out of the piston bore through a sealed guide in the bottom of the piston bore. The top side of the piston head opposite the stem constitutes a large effective area of the piston for rapidly expelling a relatively large volume of fluid from the piston bore in a low pressure interval of operation the actuator. When the fluid pressure in the piston bore exceeds a transition pressure, a transition valve opens a bypass passage to the piston bore behind the piston head so that the same fluid pressure reacts against the bottom side of the piston head around the stem. A high pressure interval of operation of the electro-hydraulic actuator then ensues in which the effective area of the piston is reduced to the area of the cross-sectional profile of the stem.
    • 一种用于机动车辆制动线制动系统的电动液压致动器,包括壳体,壳体中的活塞孔,活塞孔中的T形活塞,以及通过减速器连接到活塞的电动马达。 T形活塞在活塞孔中包括一个盘形头部,以及通过活塞孔底部的密封引导件可垂直地滑动进出活塞孔的管状阀杆。 与杆相对的活塞头的顶部构成了活塞的大的有效面积,用于在致动器的低压操作间隔中快速地从活塞孔排出相当大体积的流体。 当活塞孔中的流体压力超过过渡压力时,过渡阀打开活塞头后面的活塞孔的旁通通道,使得相同的流体压力相对于活塞头的底部侧面反应。 然后电动液压致动器的高压操作间隔随之而来,其中活塞的有效面积减小到杆的横截面轮廓的面积。
    • 7. 发明授权
    • Master cylinder and emulator with apply assist
    • 主缸和模拟器具有应用辅助功能
    • US5720170A
    • 1998-02-24
    • US685063
    • 1996-07-22
    • John Benjamin HagemanDonald Edward Schenk
    • John Benjamin HagemanDonald Edward Schenk
    • B60T8/40B60T11/20B60T13/68
    • B60T13/686B60T11/20B60T8/4086
    • A master cylinder and emulator includes a primary piston and a secondary piston which are movable to provide fluid pressure to effect wheel braking in a vehicle. In addition, the master cylinder includes an emulator assembly which supplies conventional pedal feel and travel characteristics when the primary and secondary pistons are substantially immovable due to isolation of the master cylinder from the wheel brakes. The emulator assembly includes a piston that is movable against a selected amount of fluid pressure and spring force while the primary piston remains stationary. The fluid force is supplied by controlling the flow of fluid from behind the piston through a flow restrictive orifice to a conventional fluid reservoir on the master cylinder assembly. The master cylinder and emulator assembly is operable to provide brake actuation assist to an electric or electro-hydraulically controlled braking system.
    • 主缸和仿真器包括主活塞和次活塞,其可移动以提供流体压力以在车辆中实现车轮制动。 此外,主缸包括仿真器组件,当主缸和辅助活塞由于主缸与车轮制动器的隔离而基本上不可移动时,该模拟器组件提供传统的踏板感觉和行驶特性。 仿真器组件包括活塞,该活塞可抵抗选定量的流体压力和弹簧力移动,同时主活塞保持静止。 通过将流体从活塞后面通过限流孔控制到主缸组件上的常规流体储存器来提供流体力。 主缸和仿真器组件可操作以向电动或电液压控制的制动系统提供制动器致动辅助。