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(11)

EP 2 809 538 A2

(12)

(88) Date of publication A3: 10.10.2013 (43) Date of publication: 10.12.2014 Bulletin 2014/50 (21) Application number: 13703261.1 (22) Date of filing: 28.01.2013

(51) International Patent Classification (IPC):  B60K 11/04(2006.01) F01P 5/06(2006.01) B60R 19/52(2006.01) B60K 11/08(2006.01) F01P 11/10(2006.01) (86) International application number: PCT/US2013/023355 (87) International publication number: WO 2013/116124 (08.08.2013 Gazette 2013/32)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 31.01.2012 US 201213362580 (71) Applicant: Caterpillar Inc. Peoria, IL 61629-9510 (US)	(72) Inventors: GADHIRAJU, Suryanarayana, R. Decatur, IL 62526 (US) WANG, Fei Peoria, IL 61615 (US) LOOPER, Ryan, D. Mt. Zion, IL 62549 (US) BLUNIER, Brian, V. Eureka, IL 61530 (US) (74) Representative: Wagner & Geyer  Partnerschaft Patent- und Rechtsanwälte Gewürzmühlstrasse 5 80538 München 80538 München (DE)