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US 12,545,137 B2Granted
Fast charger protection under sudden stop conditions
AssigneeRivian IP Holdings, LLC
InventorsPuneeth Srikanta Murthy, Lixiang Wei, Steven Schulz
Life of this patent
Estimating the term…
Abstract
Systems and methods for operating a PEM including control circuitry are provided herein. The operation includes detecting, using the control circuitry, a drop in output current of the PEM, detecting, using the control circuitry, an increase in output voltage of the PEM, and in response to detecting the drop in output current and detecting the increase in output voltage, turning off the PEM using the control circuitry. Turning off the PEM may protect circuitry of the PEM from an interruption of a continuous power flow.
Claims20
A method comprising:
- detecting, using control circuitry, a drop in output current of a power electronics module (PEM);
- in response to detecting the drop in the output current, detecting, using the control circuitry, whether an output voltage of the PEM increases over a period of time;
- and
- in response to detecting that the output voltage increased over the period of time, turning off the PEM using the control circuitry.
1 more element
A method comprising:
- detecting, using control circuitry, a negative current at an output of a first power electronics module (PEM), wherein the first PEM is electrically coupled in parallel to a second PEM to provide a net positive DC output current;
- in response to detecting the negative current at the output of the first PEM, detecting, using the control circuitry, whether a net output voltage of the first PEM and the second PEM increases over a period of time;
- and
- in response to detecting that the net output voltage increased over the period of time, turning off the first PEM using the control circuitry.
1 more element
A system comprising:
- a power electronics module (PEM);
- and
- control circuitry of the PEM configured to:
- detect a drop in output current of the PEM;
- in response to detecting the drop in the output current, detect whether an output voltage of the PEM increases over a period of time;
- and
- in response to detecting that the output voltage increased over the period of time, turn off the PEM.
4 more elements
Dependencies are inferred from the claim text.