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    • 11. 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。
    • 14. 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。
    • 17. 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。