公开(公告)号：US20030234576A1

公开(公告)日：2003-12-25

申请号：US10174601

申请日：2002-06-19

Applicant: DELPHI TECHNOLOGIES INC.

Inventor： David F. Reuter ,  Earl W. Lloyd

IPC: B60T008/60

CPC classification number: B60T8/4881 ,  B60T8/267 ,  B60T8/348

Abstract: A controlled brake apparatus and method of operating a brake apparatus utilize a pre-charge circuit connected directly between the fluid reservoir of a master cylinder of the apparatus and the inlet of a controlled braking pump, to thereby direct pre-charge flow and pressure to the controlled braking pump inlet in a parallel circuit relationship to a primary hydraulic circuit, rather than in a series flow arrangement through the primary hydraulic circuit as was the case in prior brake systems. By feeding the pre-charge pressure and flow to the inlet of the controlled braking pump in this parallel circuit manner, components of the pre-charge circuit, such as a prime valve and its associated check valve are not exposed to braking pressure and can be made significantly smaller, lighter and at lower cost. The brake apparatus may also include a pre-charge pump driven by the same motor used for driving the controlled braking pump.

Abstract translation: 受控制动装置和操作制动装置的方法利用直接连接在装置的主缸的流体储存器和受控制动泵的入口之间的预充电循环，从而将预充电流和压力引导到 控制制动泵入口与主液压回路并联电路，而不是像先前的制动系统一样通过主液压回路的串联流动装置。 通过以这种并联电路方式将预充压力和流量输送到受控制动泵的入口，诸如主阀及其相关止回阀的预充电电路的部件不暴露于制动压力，并且可以 使得显着更小，更轻，成本更低。 制动装置还可以包括由用于驱动受控制动泵的相同电动机驱动的预充电泵。