Patent ID: 11952930
Assignee: CUMMINS INC.
Field: Environmental technology (Chemistry)
Classification: CPC F  H  B  Y | IPC F

Claim 15:
16. An apparatus for selectably providing power to and receiving power from a hybrid vehicle traction motor, the apparatus comprising:
a DC bus including a first DC rail, a second DC rail and a capacitor operatively coupled with the first DC rail and the second DC rail;
a plurality of inverter phase legs each including a respective first switch operatively coupled with the first DC rail and operatively coupled with a respective traction motor input/output node and a respective second switch operatively coupled with the respective traction motor input/output node and operatively coupled with the second DC rail; and
at least one auxiliary leg including a first auxiliary leg switch operatively coupled with the first DC rail and operatively coupled with an output node that is operatively coupled with a resistive heating element, a second auxiliary leg switch operatively coupled with the second DC rail and operatively coupled with the output node, the resistive heating element being selectably operatively coupled with the first DC rail by operation of the first auxiliary leg switch and selectably operatively coupled with the second DC rail by operation of second auxiliary leg switch, wherein the resistive heating element receives rectified power from the first DC rail and the second DC rail and is configured to thermally interface with and selectably transfer heat to an exhaust aftertreatment system component, the resistive heating element further being operatively coupled to receive discharge current from the capacitor.