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US 5,011,238 AGranted
Master cylinder with integrated adaptive braking and traction control system
AssigneeAllied-Signal Inc.
InventorArthur K. Brown, Jr.
Life of this patent
Estimating the term…
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AssigneeAllied-Signal Inc.
InventorArthur K. Brown, Jr.
Estimating the term…
The integrated adaptive braking and traction control system assembly (10) comprises an elongated body (12) having a bore (16) with a master cylinder mechanism (18) disposed therein. The body (12) includes a plurality of valve devices (26) for adaptive braking and traction control, a plurality of passages which connect the master cylinder mechanism (18) with the valve devices (26) and selected valve devices with other selected valve devices, a four-channel pump mechanism (90) for communicating fluid pressure toward associated wheel brakes (52, 62, 72, 82) of the vehicle, displacement chambers (42A, 42B, 42C, 42D) with displacement pistons (43) disposed therein, and a reservoir (40) which communicates with the master cylinder mechanism (40) and adaptive braking and traction control systems.
An integrated adaptive braking and traction control system assembly, comprising an elongated body having a mounting end and an axial bore extending from said mounting end, a master cylinder assembly operatively disposed in said bore, reservoir means communicating with said master cylinder assembly, pump means disposed adjacent the mounting end to communicate pressure toward wheel brakes of an associated vehicle, the elongated body including a plurality of valve devices of the adaptive braking and traction control system assembly, a plurality of displacement chambers with displacement pistons disposed therein, and a plurality of passages connecting together the valve devices, the master cylinder assembly with the wheel brakes via certain ones of the valve devices, the pump means with the displacement chambers, and the reservoir means with the master cylinder assembly, to provide the integrated adaptive braking and traction control system assembly for mounting on a vehicle.
A braking control system, comprising master cylinder means for transmitting pressurized fluid to at least one wheel brake of a vehicle, isolation and decay valve means disposed between said master cylinder means and wheel brake, reservoir means for providing fluid to said master cylinder means, pump means which communicates with said reservoir means and transmits fluid pressure to a displacement chamber having therein a displacement piston, one part of said displacement chamber communicating with build valve means, the build valve means communicating selectively with the reservoir means and the wheel brake, another part of the displacement chamber communicating with the isolation and decay valve means, and control means for controlling operation of said isolation and decay and build valve means, so that fluid pressure transmitted by the pump means is received within the one part of the displacement chamber and transmitted to said build valve means where the fluid pressure is transmitted to one of the reservoir means and said wheel brake, the other part of the displacement chamber able to transmit pressure, via displacement of the piston, toward the wheel brake via the isolation and decay valve means.
Dependencies are inferred from the claim text.