POSITIVE TEMPERATURE COEFFICIENT RESISTOR HEATER ASSEMBLY HEALTH MONITORING

A system for determining a health status of a positive temperature coefficient resistor (PTCR) heater assembly (28) includes a PTCR heater assembly (28) and a health monitoring system (24). An input voltage is provided to the PTCR heater assembly (28) to provide heating. The health monitoring system...

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Bibliographic Details
Main Authors VALDES CHAVEZ, Armando, SCHWARTZ, Richard Alan, JENKINS, Alexandra C
Format Patent
LanguageEnglish
French
German
Published 03.04.2024
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:A system for determining a health status of a positive temperature coefficient resistor (PTCR) heater assembly (28) includes a PTCR heater assembly (28) and a health monitoring system (24). An input voltage is provided to the PTCR heater assembly (28) to provide heating. The health monitoring system (24) includes a first sensor configured to sense the input voltage at the PTCR heater assembly (28) and a second sensor configured to sense a current through the PTCR heater assembly (28). The health monitoring system (24) is configured to determine a baseline characteristic and an observed characteristic each relating to an inrush peak of the PTCR heater assembly (28) and based on the input voltage and the current. The health monitoring system (24) compares the observed characteristic to the baseline characteristic to assess a health status of the PTCR heater assembly (28) and outputs the health status for PTCR heater assembly (28) diagnostics and/or prognostics.
Bibliography:Application Number: EP20220173576