SYSTEMS AND METHODS FOR DETECTING HIGH-VOLTAGE CONTACTOR STATE OF HEALTH

摘要

Systems and methods are disclosed for determining a weld state of a contactor (e.g., normal, partially welded, and/or welded states) based on a variety of actuator coil characteristics during actuation. In some embodiments, the disclosed systems and methods may be utilized in connection with determining contactor weld states in a variety of contactor designs. In further embodiments, the disclosed systems and methods may utilize a probability weighted score accounting for contactor design characteristics and information obtained from a reference contactor to identify a weld state associated with a contactor device.

主权项

1. A method for determining a weld state of a contactor included in a vehicle comprising:
receiving current information from a current sensor associated with an actuator coil of the contactor following initiation of actuation of the contactor; receiving voltage information from a voltage sensor associated with an actuator coil of the contactor following initiation of actuation of the contactor; identifying a plurality of characteristics based on the received current and voltage information; comparing the plurality of characteristics to characteristics associated with a reference contactor; and determining a weld state of the contactor based on the comparison.