Alliedsignal Inc.

Borg-warner Automotive Electronic & Mechanical Systems Corporation

Jeffrey E Devall

David R Gimby

John A Aubel

Philip A Shipp

The linear variable pressure adaptive braking and traction control system (10) includes a control valve (70) having a linear actuator (72) and a valve (74). The linear actuator (72) may be operated to displace axially a valve member (82) of the valve (74) and which has a first valve seat (85) controlling fluid flow into a longitudinal passage (84) of the valve member (82). The first valve seat (85) engages a ball valve (101) disposed within an interior opening (97) of a slidable piston (90), the ball valve (101) biased by a resilient mechanism (102). The ball valve (101) also engages a piston valve seat (96) located at an end opening (94) of the piston (90). The piston (90) has a seal (92) thereabout and slides within a bore (76) of the valve (74). A spring mechanism (100) within the bore (76) biases the piston (90 ) toward an end (77) of the bore (76) having a passage (39) which communicates with a pump (50). An intermediate bore section (78) communicates with a passage (45) which connects the bore (76) with a wheel brake (20) via an electric valve mechanism (40). Another end (79) of the bore (76) includes a passage (55) which communicates the longitudinal passage (84) of the valve member (82) with a sump (58) that communicates with the pump (50). A vehicle master cylinder (30) communicates with the wheel brake (20) via the electric mechanism (90). The control valve (70) may be utilized to provide both adaptive braking and traction control system operation.

Linear variable pressure adaptive braking and traction control system

The invention incorporates a high flow, pilot actuated pressure relief/rollover valve into a refueling vapor recovery system having a vapor vent line for recirculating vapor past the aspirator of a refueling nozzle and a nozzle seal for engaging a refueling nozzle in an airtight manner. All vapor of evaporative hydrocarbons created during the act of refueling are routed directly to an onboard storage canister.

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South Bend, IN, United States of America

Jeffrey E Devall