Eric R Ruth

US Patent:

20130140121, Jun 6, 2013

Filed:

Dec 1, 2011

Appl. No.:

13/308973

Inventors:

Brian Huber - Carpentersville IL, US
Eric J. Ruth - Peoria IL, US
Bradley S. Bailey - Peoria IL, US
Matthew L. Hendrickson - Dunlap IL, US

Assignee:

CATERPILLAR INC. - Peoria IL

International Classification:

B60L 5/04
B60K 1/00
B60K 6/20

US Classification:

191 591

Abstract:

A trolley capable mining truck includes a pantograph supported on a machine frame for electrically connecting the truck with an overhead trolley line. A power system includes an onboard electrical power source providing electrical power to electric drive propulsion motors along a first electrical path in a first configuration of the power system. The pantograph provides electrical power from the overhead trolley line to the electric drive propulsion motors along a second electrical path, which includes a transient damping reactor, in a second configuration of the power system. The power system also includes a third configuration in which, during a braking mode of the trolley capable mining truck, the electric drive propulsion motors provide regenerative electrical power to the overhead trolley line through the pantograph along a third electrical path including a regenerative power converter, wherein the regenerative power converter includes the transient damping reactor.