UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY

2000 TRAVERWOOD DRIVE

ANN ARBOR, MI  48105-2498

									     OFFICE OF

									AIR AND RADIATION

5/5/16

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 May 5, 2016 between representatives
of Cummins, Volvo, Navistar, Paccar, Eaton, Allison, Daimler,
Caterpillar, Hino, EMA 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 – Scott Mundy

Caterpillar – 

Cummins – Manik Narula, Jackie Yeager

Daimler – Gerald Freitag, Inderpal Singh

Eaton – Erik Dykes

EMA – Tim Blubaugh

EPA – Houshun Zhang, Matt Spears, James Sanchez

Hino – Mark Siddall

Navistar – Cortney Guzlas, Matt Hunkler, Laura Ricart-Ugaz

PACCAR – Mark Malowicki, Dan Kieffer, Erin Luke

Volvo – Marc Miller, Tim Connors, Tony Greszler

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

Generic vehicle definition – All 

Discussion about impact of assuming automatic transmission on N/V
coverage 

Cycle average map option – All

Discussion about GEM shift algorithm and using an EPA default (generic)
steady state fuel map for shifting if manufacturer chooses to use a
cycle average map for all 3 GEM cycles

Shape (not absolute values) of default map matters for shifting, also
engine torque curve

Actual engine torque curve still used

Discussion about confirmatory testing scenarios

Topics for future calls: 

(TBD) SwRI results (gasoline engine) – Houshun

