
                 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY
                             2000 TRAVERWOOD DRIVE
                           ANN ARBOR, MI  48105-2498


									     OFFICE OF
									AIR AND RADIATION
6/16/16

MEMORANDUM

SUBJECT: Dana visit on Phase 2 Axle and GEM Related Topics

FROM: Houshun Zhang

TO:  Greenhouse Gas Emissions Standards and Fuel Efficiency Standards for Medium- and
Heavy-Duty Engines and Vehicles - Phase 2 - Docket EPA-HQ-OAR-2014-0827



This memo documents an on-site meeting at EPA on March 9, 2016 between Dana and EPA on axle related to the Phase 2 greenhouse gas and fuel efficiency standards for heavy-duty vehicles.  Five people from Dana are Steven Mastrionni, and Ben Passino. On EPA site,  Matt Spears, James Sanchez, and Houshun Zhang attended the meeting

During the meeting, Dana first provided what they understood about Phase 2, and then asked many questions regarding how the axle is modeled in GEM, such as axle efficiency and power loss, 6x2 vs 6x4 ,etc.  The meeting also talked about axle test procedure.  Both agency and Dana agreed that a follow-up meeting was needed about their finding regarding the NODA released version of GEM in the near future. 
