Brake fluid pressure control unit

摘要

A brake fluid pressure control unit for a vehicle comprises: a hydraulic block that includes a housing containing an internal channel for a first system and an internal channel for a second system, which individually allow communication with a wheel cylinder for a first wheel and a wheel cylinder for a second wheel respectively, and also containing a detected hydraulic pressure inlet hole leading to a pressure receiving part of a pressure sensor. A first hole included in the internal channel for the first system and a second hole included in the internal channel for the second system can selectively be connected to the detected hydraulic pressure inlet hole by machining such that the depth of either the first hole or the second hole is made greater than the other.

主权项

1. A brake fluid pressure control unit for a vehicle, the unit comprising:
a hydraulic block that includes a housing containing an internal channel for a first system and an internal channel for a second system by which incorporated pumps and corresponding external pressurizing sources are configured to individually communicate with a wheel cylinder for a first wheel and a wheel cylinder for a second wheel, respectively, via corresponding pressure increase valves, and a detected hydraulic pressure inlet hole leading to a pressure receiving part of a pressure sensor, wherein the internal channel for the first system and the internal channel for the second system can be selectively connected to the detected hydraulic pressure inlet hole by machining either one of first and second holes of the corresponding internal channels to a depth greater than the other, wherein the housing has, in one end face thereof, pressure increase valve accommodating holes, pressure reduction valve accommodating holes, and a pressure sensor accommodating hole, and has, in both side faces thereof, two opposite pump accommodating holes, wherein the housing also has, in a lower face thereof, reservoir installation holes that receive corresponding brake fluids discharged from the corresponding wheel cylinders via the corresponding pressure reduction valves and that supply the brake fluids to the corresponding pumps, and has, in an upper face thereof, pressurizing source ports that connect to the corresponding external pressurizing sources, and wheel cylinder ports that individually connect to the corresponding wheel cylinders for the first wheel and the second wheel respectively, wherein the first hole and the second hole are provided opposite each other in both side faces of the housing, wherein the detected hydraulic pressure inlet hole is disposed so as to meet either the first hole or the second hole and vertically cross a line extending from the other, and wherein the first hole and the second hole are each composed of corresponding holes connecting the corresponding pressurizing source ports and the respective discharging ports of the corresponding pumps.