HIGH VOLTAGE TO LOW VOLTAGE POWER CONVERSION SYSTEM FOR HIGH VOLTAGE POST IMPACT ELECTRICAL INTEGRITY AND DISCHARGE SYSTEM

DRIVE December 4, 2025
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A vehicle includes a system for operating the vehicle. The system includes a high voltage power source, a first Accessory Power Module (APM) that converts power between high voltage and low voltage, a first switch for controlling a connection between the high voltage power source and the first APM, a second APM that converts power between high voltage and low voltage, a second switch for controlling a connectivity between the high voltage power source and the second APM, an On Board Charging Module (OBCM) connected to the first APM between the first switch and the first APM, a sensor for detecting an impact event at the vehicle and generating a signal upon detecting the impact event, and a processor. The processor receives the signal from the sensor and places the first switch in an open configuration and the second switch in a closed configuration in response to the signal.

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