ELECTRO-PNEUMATIC CONTROL SYSTEM

An electro-pneumatic braking system is disclosed for use on an air-braked vehicle. A conventional operator-operated brake control valve controls a relay valve which controls at least some of the brake actuators carried by the vehicle. An electronic control device compares the fluid pressure level at...

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Bibliographische Detailangaben
Hauptverfasser:	DEEM B,US, KRIEDER R,US, MORSE R,US
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	An electro-pneumatic braking system is disclosed for use on an air-braked vehicle. A conventional operator-operated brake control valve controls a relay valve which controls at least some of the brake actuators carried by the vehicle. An electronic control device compares the fluid pressure level at the delivery port of the brake control valve and at the brake actuators controlled by the relay valve. If the fluid pressure level at the delivery port of the brake control valve exceeds the pressure level at the brake actuators by more than a predetermined amount, a first error signal is generated which actuates a solenoid valve that causes the relay valve to initiate a brake application. If the pressure level at the brake actuators exceeds the pressure level at the delivery port of the brake control valve by more than a predetermined amount, a second error signal is generated which actuates a second solenoid valve that releases the relay valve, thereby also releasing the brakes of the vehicle.