US 12,304,329 B2
Electrical architecture for battery powered machine
Matthew Lawrence Hendrickson, Dunlap, IL (US); Eric M. Andris, Dunlap, IL (US); Dustin Craig Selvey, Eureka, IL (US); Bradley Scott Bailey, Edwards, IL (US); and Igor Strashny, Tucson, AZ (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Nov. 7, 2022, as Appl. No. 17/981,849.
Prior Publication US 2024/0149717 A1, May 9, 2024
Int. Cl. B60L 50/53 (2019.01); B60L 53/10 (2019.01); B60L 53/22 (2019.01); B60L 1/00 (2006.01); B60L 1/02 (2006.01); B60L 9/00 (2019.01); H02J 1/08 (2006.01)
CPC B60L 50/53 (2019.02) [B60L 53/11 (2019.02); B60L 53/22 (2019.02); B60L 1/003 (2013.01); B60L 1/02 (2013.01); B60L 9/00 (2013.01); B60L 2200/40 (2013.01); B60L 2210/10 (2013.01); H02J 1/082 (2020.01); H02J 2310/48 (2020.01)] 23 Claims
OG exemplary drawing
 
1. An electrical architecture for a battery powered machine that has at least two different voltage buses, the electrical architecture comprising:
a battery module coupled to a first voltage bus and configured to supply a first voltage to the first voltage bus;
an AC/DC converter circuit coupled to the first voltage bus and configured to charge the battery module via a charge port while the battery powered machine is stationary;
a first DC/DC converter circuit coupled to the first voltage bus and to a second voltage bus, wherein the first DC/DC converter circuit is configured to generate, from the first voltage at the first voltage bus, a second voltage at the second voltage bus, and wherein the second voltage is different than the first voltage; and
a second DC/DC converter circuit configured to be coupled to the first voltage bus and between the battery module and an external power source comprising a trolley system or Charging-While-Moving (CWM) system, wherein the external power source is configured to provide power, while the battery powered machine is in motion, to a traction system via the second DC/DC converter circuit and to charge the battery module via the second DC/DC converter circuit.