BRAKE ACTUATORS AND SYSTEMS FOR MONITORING STROKE OF BRAKE ACTUATORS

A system for monitoring stroke of a spring brake actuator of a vehicle comprises a spring brake actuator having a push rod, wherein pneumatic activation of the spring brake actuator causes the push rod to further extend out of the spring brake actuator to thereby activate braking of the vehicle, and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Drake, Will Brandon, Gregoire, Jean
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A system for monitoring stroke of a spring brake actuator of a vehicle comprises a spring brake actuator having a push rod, wherein pneumatic activation of the spring brake actuator causes the push rod to further extend out of the spring brake actuator to thereby activate braking of the vehicle, and wherein pneumatic deactivation of the spring brake actuator causes the push rod to retract back into the spring brake actuator to thereby deactivate braking of the vehicle. A first magnet and a second magnet are coupled to the push rod, and the second magnet is spaced apart from the first magnet. A sensor is configured to sense a magnetic field created by the first magnet and the second magnet, and a controller is configured to determine stroke of the push rod based the magnetic field.