Document ID: EPA-HQ-OAR-2014-0827-2085
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2016-10-25T04:00Z

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY

2000 TRAVERWOOD DRIVE

ANN ARBOR, MI  48105-2498

									     OFFICE OF

									AIR AND RADIATION

1/14/16

MEMORANDUM

SUBJECT: Test Procedure Review with Cummins, Volvo, Navistar, Paccar,
Daimler Eaton and Allison

FROM: James Sanchez

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 communication on January 14, 2016 between
representatives of Cummins, Volvo, Navistar, Paccar, Eaton, Allison,
Daimler, EMA, Hino and EPA to discuss heavy-duty test procedures
proposed in the Phase 2 greenhouse gas and fuel efficiency standards for
heavy-duty vehicles notice of proposed rulemaking.

Participants: 

Allison – Jeff Schultz

Cummins – Jackie Yeager, Manik Narula

Daimler – Anirban Sett, Gerald Freitag

Eaton – Erik Dykes

EMA – 

EPA – Houshun Zhang, James Sanchez

Hino – Mark Siddall

Navistar – Dave Gardner, Laura Ricart

PACCAR – Dan Kieffer, Erin Luke, Mark Malowicki, Costi Nedelcu

Volvo – Marc Miller, Steve Berry, Yuesheng He

Discussion and follow-up items (with owner's name in bold): 

Road grade evaluation update – James 

Summarized EPA testing with new Profile D versus NPRM grade profile 

SwRI testing: 7-9% difference in g/mile fuel consumption and 1-2% BSFC
difference on ISB with Allison transmission

ORNL testing: Similar results on ISX with Eaton AMT (or Allison TC10?)

Volvo simulations showing bigger differences (>20%).  Compared to
logged vehicle data on 8000 tractors, grade distribution is
representative, but engine torque distribution is not.  Looking into
mass comparison. 

GEM debugging release – All 

Companies requested Simulink source code corresponding to executable
released yesterday

Question about source of default transmission efficiencies – based on
CBI from transmission manufacturers

New m-file coming tomorrow to fix idle bug

Topics for future calls: 

(1/28) Open questions/work planning – All