US 12,341,440 B2
Systems and methods for capacitor voltage control for inverter for electric vehicle
Alexandre M. S. Reis, Westfield, IN (US); Abhishek Vijay Danekar, Kokomo, IN (US); and Sunil Sreedhar, Westfield, IN (US)
Assigned to BorgWarner US Technologies LLC, Wilmington, DE (US)
Filed by BorgWarner US Technologies LLC, Wilmington, DE (US)
Filed on Jun. 5, 2023, as Appl. No. 18/329,144.
Prior Publication US 2024/0405693 A1, Dec. 5, 2024
Int. Cl. H02M 7/219 (2006.01); B60L 53/22 (2019.01); H02M 1/00 (2006.01); H02M 1/42 (2007.01)
CPC H02M 7/219 (2013.01) [B60L 53/22 (2019.02); H02M 1/0077 (2021.05); H02M 1/4241 (2013.01); B60L 2210/44 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
an alternating current (AC) to direct current (DC) converter (AC-DC converter) including a bulk capacitor, the AC-DC converter connectable to a line voltage;
a DC to DC converter (DC-DC converter) connected to the AC-DC converter, the DC-DC converter including:
one or more transformers having a secondary side connectable to a battery, and
a bridge rectifier connected to the secondary side of the one or more transformers, the bridge rectifier including a bridge rectifier switch; and
one or more controllers configured to:
control an operation of the bridge rectifier switch to control a voltage of the bulk capacitor;
determine a feedforward term; and
control the operation of the bridge rectifier switch based on a voltage setpoint for the bulk capacitor and the determined feedforward term.