Method for detecting electric-mechanical-brake pad drag and/or calculating actuator efficiency

Electric-mechanical-brake (EMB) pad drag is determined from measurements (which can include estimations) of EMB voltage, EMB actuator temperature, and either EMB current or EMB motor speed during an open-loop apply of the EMB pad and during an open-loop release of the EMB pad. An open-loop EMB actua...

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Bibliographische Detailangaben
Hauptverfasser:	SIMPSON MELINDA D, LITTLEJOHN DERON C, ZUMBERGE JON T
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BRAKES CALCULATING CLUTCHES COMPUTING CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING COUNTING COUPLINGS FOR TRANSMITTING ROTATION ELECTRIC DIGITAL DATA PROCESSING ENGINEERING ELEMENTS AND UNITS FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	Electric-mechanical-brake (EMB) pad drag is determined from measurements (which can include estimations) of EMB voltage, EMB actuator temperature, and either EMB current or EMB motor speed during an open-loop apply of the EMB pad and during an open-loop release of the EMB pad. An open-loop EMB actuator efficiency is calculated when certain conditions of the same measurements apply, whereupon the EMB actuator efficiency is calculated using at least the apply or release EMB current and a corresponding apply or release preselected (such as a nominal) EMB current or is calculated using at least the apply or release EMB motor speed and a corresponding apply or release preselected (such as a nominal) EMB motor speed.