US 11,794,585 B1
Electrical circuit based voltage control of electric vehicle batteries
Nick P. Tokarz, San Jose, CA (US); Thomas Rocroi, Richmond, CA (US); Brian N. Harries, Redondo Beach, CA (US); and Ryan David, Silverado, CA (US)
Assigned to Rivian IP Holdings, LLC, Irvine, CA (US)
Filed by Rivian IP Holdings, LLC, Irvine, CA (US)
Filed on Jul. 6, 2022, as Appl. No. 17/810,876.
Int. Cl. B60L 3/00 (2019.01); B60L 3/04 (2006.01); H01H 39/00 (2006.01); B60L 58/10 (2019.01)
CPC B60L 3/0046 (2013.01) [B60L 3/04 (2013.01); B60L 58/10 (2019.02); H01H 39/006 (2013.01); H01H 2039/008 (2013.01)] 18 Claims
OG exemplary drawing
 
10. A method, comprising:
energizing, by a plurality of power supplies, a driver component of an electrical circuit of an electric vehicle;
providing, by the driver component, a voltage greater than a threshold from a battery of the electric vehicle to a motor of the electric vehicle;
connecting, by a switch module, the driver component to the plurality of power supplies;
detecting, by the switch module, a signal to actuate an emergency safety feature of the electric vehicle;
facilitating electrical disconnection, in response to detecting the signal, of the driver component from the plurality of power supplies to reduce the voltage provided to the motor below the threshold;
energizing, using the plurality of power supplies, a power supply for a second driver component connected to a contactor that is connected to the driver component, the power supply different from the plurality of power supplies; and
continuing to energize, using the plurality of power supplies, the power supply for the second driver component when the switch module is disconnected.