UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY

2565 PLYMOUTH ROAD

ANN ARBOR, MICHIGAN 48105-2498

OFFICE OF

AIR AND RADIATION

                                                                        
          	     

MEMORANDUM

SUBJECT:	Heavy-Duty Hybrid Onboard Diagnostics

FROM:		Amy Kopin

TO:		The Docket

DATE:		July 5, 2011

	On April 13th, 2011 we held a conference call with the Hybrid
Manufacturers Regulatory Collaboration (HMRC) to discuss concerns raised
by HMRC members regarding heavy-duty onboard diagnostic (OBD)
requirements and timing.  Concerns were raised during the comment period
for the heavy-duty greenhouse gas notice of proposed rulemaking that
heavy-duty hybrid applications may not be able to meet the 2013
heavy-duty OBD regulations that were published in the 2009 OBD Final
Rulemaking. ,  Specifically, they have requested a delay of the
application of HD OBD requirements for hybrid applications until 2020. 
Attendees from the EPA and HMRC are shown.  The agenda for the meeting
is presented on the following page of this memo.

Attendee	Affiliation

Cleophas Jackson	EPA – Compliance and Innovative Strategies Division

Anthony Neam	EPA – Assessment and Standards Division

Amy Kopin	EPA – Assessment and Standards Division

Barbara Chance	Allison Transmission

Kevin Rodgers	Allison Transmission

Ian McKenzie	Eaton Corporation

Tom Apalenek	BAE Systems



	

OFFICE OF

AIR AND RADIATION

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY

2565 PLYMOUTH ROAD

ANN ARBOR, MICHIGAN 48105-2498

                                                                        
  	     

Joint HMRC-EPA Call Regarding Heavy-Duty Hybrid OBD

April 13, 2011

Agenda

Current Technology

What capability do production systems have today?  

Industry’s Interim Plans

Specific monitor and/or other difficulties they anticipate having.

What monitors will be functional and which will not be functional.

Interim plan if there is a delay.

How to ensure tampering won’t occur if OBD implementation is
delayed/limited.

How to ensure system is functioning properly if OBD is delayed/limited.

Standardization and Communications

What are specific concerns with J1939?

HMRC states that HD hybrid system manufacturers do not “have access to
OBD system [engine] data,” is this issue being actively resolved?

Review OBD requirements for alternative fuels.

Next Steps

 U.S. EPA, NHTSA, and DOT, “Greenhouse Gas Emission Standards and Fuel
Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles,”
republished December 29, 2010.  Available here: 
http://origin.www.gpo.gov/fdsys/pkg/FR-2010-12-29/html/2010-32726.htm

 U.S. EPA, “Control of Air Pollution from New Motor Vehicles and New
Motor Vehicles Engines; Final Rule Regulations Requiring Onboard
Diagnostic Systems on 2010 and Later Heavy-Duty Engines Used in Highway
Applications Over 14,000 Pounds; Revisions to Onboard Diagnostic
Requirements for Diesel Highway Heavy-Duty Vehicles Under 14,000
Pounds,” published February 24, 2009.  Available here:
http://www.epa.gov/otaq/regs/im/obd/regtech/hd-obd-frm-02-24-09-notice-7
4-fr-8310.pdf

