Patent ID: 11967854
Assignee: CUMMINS INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  F  Y | IPC B  H

Claim 0:
1. A mild-hybrid energy storage system architecture, comprising:
a battery;
an ultracapacitor connected in parallel with the battery;
a passive battery pre-charge circuit connected between a terminal of the battery and a DC bus;
a battery main contactor connected in parallel with the battery pre-charge circuit between the terminal of the battery and the DC bus;
a passive ultracapacitor pre-charge circuit connected between a terminal of the ultracapacitor and the DC bus;
an ultracapacitor main contactor connected in parallel with the ultracapacitor pre-charge circuit between the terminal of the ultracapacitor and the DC bus; and
a control module configured to independently control operation of the battery pre-charge circuit, the battery main contactor, the ultracapacitor pre-charge circuit and the ultracapacitor main contactor.