Cummins Inc.

Cummins Ip, Inc.

Duane J Szymanski

Martin T Books

John P O'Brien

Joseph E Paquette

Jaroslaw Leonarski

Todd M Wieland

Erik L Piper

Subbarao Varigonda

Bradford K O Palmer

Carl A Jones

Pramod Suresh Magadi

Leslie E Freeman

David G Eames

Mark G Tang

William A MacGregor

Leigh A Rogoski

The present disclosure provides a method of selectively charging or discharging a system with multiple battery packs connected in parallel when at least one of the battery packs has a significantly different voltage or states of charge (SOCs) than the other battery packs. The method includes charging or discharging the battery pack(s) with a voltage or state of charge (SOC) farthest from a target value until the voltage(s) or SOC(s) is within a range of another battery pack at which point the battery packs may be connected and charging or discharging can resume for the set of connected packs. This process is repeated until all the battery packs are at a predetermined minimum or maximum voltage or SOC threshold. The present disclosure also provides a method for selectively operating and charging at least one of a plurality of battery packs depending on the respective states of the battery packs.

Battery charging and discharging of multiple packs at different states of charge (SOCs)

According to one embodiment, a method for cleaning and requalifying a component of an exhaust aftertreatment system includes inspecting the component using an x-ray processing technique. The method further includes associating the plurality of cleaning techniques with a plurality of compositions of material, and cleaning the component according to at least one of the plurality of cleaning techniques associated with the composition of material.

Exhaust component cleaning and requalification process

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Columbus, IN, United States of America

Duane J Szymanski