High voltage to low voltage power conversion system for high voltage post impact electrical integrity and discharge system

A system for operating a vehicle, comprising:

• a high voltage power source;
• a first Accessory Power Module (APM) that converts between high voltage and low voltage;
• a first high voltage positive bus line connecting the high voltage power source to the first APM;
• a first switch disposed on the first high voltage positive bus line for controlling a connection between the high voltage power source and the first APM;
• a second APM that converts between high voltage and low voltage;
• a second high voltage positive bus line connecting the high voltage power source to the second APM;
• a second switch disposed on the second high voltage positive bus line 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-first high voltage positive bus line 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;
• a processor configured to:
• receive the signal from the sensor;
• and
• place the first switch in an open configuration and the second switch in a closed configuration in response to the signal.

A vehicle, comprising:

• a high voltage power source;
• a low voltage power source;
• a first Accessory Power Module (first APM) connected between the high voltage power source and the low voltage power source, wherein the first APM converts between high voltage and low voltage;
• a first high voltage positive bus line connecting the high voltage power source to the first APM;
• a first switch disposed on the first high voltage positive bus line for controlling a connection between the high voltage power source and the first APM;
• a second APM connected between the high voltage power source and the low voltage power source, wherein the second APM converts between high voltage and low voltage;
• a second high voltage positive bus line connecting the high voltage power source to the second APM;
• a second switch disposed on the second high voltage positive bus line 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 first high voltage positive bus line 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;
• a processor configured to:
• receive the signal from the sensor;
• and
• place the first switch in an open configuration and the second switch in a closed configuration in response to the signal.