US 9,809,123 B1
Control schemes and intelligent battery selection for electric vehicles
Richard Edward Botts, Griffin, GA (US)
Assigned to Premergy, Inc., Macon, GA (US)
Filed by Premergy, Inc., Macon, GA (US)
Filed on Jul. 24, 2017, as Appl. No. 15/657,393.
Int. Cl. H02J 7/00 (2006.01); H02J 7/06 (2006.01); H02J 7/24 (2006.01); B60L 11/18 (2006.01); B60L 3/00 (2006.01); H01M 10/44 (2006.01); H02J 7/02 (2016.01)
CPC B60L 11/1818 (2013.01) [B60L 3/0092 (2013.01); B60L 11/1838 (2013.01); H01M 10/44 (2013.01); H02J 7/027 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
determining, by one or more computer processors coupled to at least one memory, a first charge level of a first battery system, wherein the first battery system is configured to power a homopolar generator;
determining that the first charge level is less than a first threshold value;
causing the first battery system to be charged by a power input source;
determining that a second charge level of the first battery system is greater than the first threshold value;
causing the first battery system to power the homopolar generator, wherein the homopolar generator is configured to output charging current to a second battery system, the second battery system comprising a first battery, a second battery, and a solid state relay;
causing the solid state relay to form a parallel connection between the first battery, the second battery, and the homopolar generator;
directing a first charging current from the homopolar generator to the first battery;
directing a second charging current from the homopolar generator to the second battery, such that the second battery charges while the first battery is charging;
determining that a third charge level of the first battery satisfies a second threshold;
determining that a fourth charge level of the second battery satisfies the second threshold; and
powering off the homopolar generator.