Relay valve operated skid control system
AssigneeKelsey-Hayes Company
InventorLeonard T. Tribe
Life of this patent
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Abstract
A skid control device for pneumatic brake systems embodying relay valves. In response to an impending skidding condition, the control pressure on the relay valve is dumped to relieve the brake pressure. When the brakes are dumped, a latch valve isolates the operator controlled treadle valve from the relay valve and establishes an alternative actuating path for subsequent brake actuation. A regulator is interposed in this path and provides controlled pressure for subsequent re-applications during a given braking cycle. The regulator is operatively connected with a memory volume to provide a regulated pressure that is related to the pressure that existed at the time the brakes were initially dumped.
Claims24
A vehicular anti skid braking system having brake applying means, an operator control for selectively applying actuating pressure to said brake applying means for actuating a vehicle brake, regulator means for providing a controlled supply of pressure of predetermined value, means responsive to an incipient skid condition for relieving the pressure in said brake applying means to prevent skidding, and means responsive to a predetermined condition for thereafter applying pressure at the predetermined value from said regulator means to said brake applying means for subsequent application of said brake applying means at a regulated pressure.
Dependencies are inferred from the claim text.