WHEELSPEED ESTIMATION SYSTEM AND METHOD

A system and method for estimating the wheel speed of a vehicle (10) propelled by DC motors (14) mechanically coupled to at least one wheel on the vehicle (10) so as to rotate said one or more wheel. At least one current detector is configured to measure armature and field current in each of the DC...

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Bibliographische Detailangaben
Hauptverfasser:	HAZEN, SAMUEL LYLE, KUMAR, AJITH KUTTANNAIR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MEASURING MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK PERFORMING OPERATIONS PHYSICS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES TESTING 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 and method for estimating the wheel speed of a vehicle (10) propelled by DC motors (14) mechanically coupled to at least one wheel on the vehicle (10) so as to rotate said one or more wheel. At least one current detector is configured to measure armature and field current in each of the DC motors (14) and produce a signal proportional to said currents and a voltage detector is configured to measure voltage applied to each of the DC motors (14) and produce a signal proportional to said voltage. A processor is configured to determine a rotational speed as a function of the measured currents and voltages and configured to apply a correction factor to the determined rotational speed to obtain a corrected rotational speed.