UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY

2565 PLYMOUTH ROAD

ANN ARBOR, MICHIGAN 48105-2498

 

MEMORANDUM

SUBJECT: Heavy-Duty Hybrid Onboard Diagnostics

FROM: Amy Kopin

TO: The Docket

DATE: July 15, 2011

On May 12th, 2011 and May 23rd we held conference calls with BAE to discuss concerns 

raised by BAE regarding heavy-duty onboard diagnostic (OBD) requirements and timing. We did 

not get through the entire agenda in the first meeting; therefore, we finished discussing the items 

on the agenda in the meeting on May 23rd. 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.

1,2

 Specifically, they have requested a delay of the 

application of HD OBD requirements for hybrid applications until 2020. Attendees from the 

EPA and BAE are shown in the table below. The agenda is on the following page of this memo.

Attendee Affiliation Attended May 12th Meeting Attended May 23rd Meeting

Cleophas Jackson EPA Yes Yes

Anthony Neam EPA Yes Yes

Amy Kopin EPA Yes Yes

Tom Apalenek BAE Yes Yes

James Dupuy BAE Yes No

Erin Hissong BAE Yes No

Derek Matthews BAE Yes Yes

Harry White BAE Yes No

Margee Meckstroth BAE No Yes

 

1 U.S. EPA, NHTSA, and DOT, “Greenhouse Gas Emission Standards and Fuel Efficiency Standards for Mediumand 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

2 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-74-fr-8310.pdf

OFFICE OF

AIR AND RADIATION
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY

2565 PLYMOUTH ROAD

ANN ARBOR, MICHIGAN 48105-2498

 

EPA-BAE Heavy-Duty Hybrid OBD Discussion

11am-noon EST May 12, 2011

Agenda

1. What is your current OBD J1939 capability for handling faults?

a. If you don’t have any, how long do you estimate it will take to 

make your current controller’s software J1939 capable?

2. Comprehensive Components:

a. What is your understanding of what you need to do for 

comprehensive components? 

b. Why do you think your current diagnostics won’t meet 

comprehensive components?

c. Given that the hybrid system is only covered under 

comprehensive components, how long will it take for your company

to make your current diagnostics J1939 compatible for fault 

storage and reporting?

d. Do you have the ability to determine an open, shorted to 

voltage, shorted to ground, an irrational sensor, and a 

nonfunctioning output component for your hybrid electronical 

components?

3. Are there specific requirements or regulations that you anticipate 

having problems with and can you identify them?

4. EPA Heavy-Duty OBD Rulemaking and Alternative Fuels Timing

5. Next Steps

OFFICE OF

AIR AND RADIATION