Off-cycle Credit Technology

EPA - Ed Nam, Linc Wehrly, Jeff Cherry, Arvon 

Byungho Lee, Robin Moran, Rob French

NHTSA - Jim Tamm, Rebecca Yoon, Greg PowellVolpe - Corralie Cooper, Kevin GreeneHonda PRO - Robert Bienenfeld, Pete MeierHRA - Ayumu Matsuo, Wataru Taga

Honda – NHTSA / EPA Meeting 3/22/2
Today’s Agenda

Policy Issues 9 Review key written comments

7 Glass and Glazing No comment2 Relays Electro-mechanical Æ semiconducto

Tire Temperature Lowers Tire Rolling Resistance CoefControl

New 8TechnologyMenu Item Clarifications

Technology comment

1 High efficiency exterior 

lighting

Clarify baseline, rules and calculation

3 Engine heat recovery Clarify calculation method and definit

“capacity”

4 Active engine & 

transmission warm-up

Clarifying of the definition

5 Electric heater 

circulation pump

Proposal of a part of Engine start-sto

6 Solar reflective paint Question about this definition
1 – High Efficiency Exterior Lightin

Definition - NPRM

High efficiency exterior lighting means a lighting technology that, when insta

vehicle, is expected to reduce the total electrical demand of the exterior ligh

minimum of 60 watts when compared to conventional lighting systems. To b

credit the high efficiency lighting must be installed in the following compone

Parking/position, front and rear turn signals, front and rear side markers, sto

(including the center-mounted location), taillights, backup/reverse lights, anlighting.

Honda Questions:

• Is Baseline EPA’s data or previous model’s data• Require 60W AND named lights (Parking, Turn, Side, Brake/Stop)?Honda’s Proposal:1. EPA’s data should be the baseline.2. Any combination to reduce 60W load

• Including High/Low Beams, OK to not include some named lights

3. Additional request to allow DRL

• Honda considers DRL as a safety technology• Standard on every vehicle we sell (since 2006)• LEDs reduce workload.• Under test conditions – DRLs are turned off.
1 – Example Calculation - Propose

Lighting

Component

EPA

Baseline New Car

Ratio of VMT 50% 50%

DRL 45.8 22.0 100% 0% 11.9

Low beam 112.4 66.0 0% 91% 21.1High beam 127.8 110.0 0% 9% 0.8Parking/position 14.8 14.8 0% 100% 0.0

Turn signal, front 53.6 53.6 5% 5% 0.0

Side marker, front 9.6 4.4 0% 100% 2.6

Stop 53.0 4.1 8% 8% 3.9Tail 14.4 4.1 0% 100% 5.2CHMSL 17.7 1.5 8% 8% 1.3Turn signal, rear 53.6 53.6 5% 5% 0.0Side marker, rear 9.6 4.1 0% 100% 2.8Backup/reverse 35.4 35.4 1% 1% 0.0License plate 9.6 2.0 0% 100% 3.8Total 183.2 105.5 53.3Day

+ Night Target 30.0 1.1

New Car 178% 2.0

grams/mile CO2 credit

New Car

Energy

Night

use

Day

Time

Use
2 – Electrical Load Reduction – Light R

Honda Proposal• Lighting Relays consume power at the same usage rate as lighting• By converting electro-mechanical to semiconductor relays, we can 

consumption.

LightingComponent Baseline New CarRatio of VMT 50% 50%

DRL 100% 0%

DRL Relay 1.3 0.05 100% 0% 0.6

Low beam 0% 91%

Low beam Relay 1.3 0.05 0% 91% 0.6

High beam 0% 9%

High beam Relay 1.3 0.05 0% 9% 0.1

Turn signal, front 5% 5%

Turn/Hazard Relay 1.3 0.05 5% 5% 0.1

Parking/Side Marker 0% 100%

Park/Side Relay 1.3 0.05 0% 100% 0.6

Total 2.7 0.1 1.9Day

+ Night Target 30.0 1.1

New Car 6% 0.1

New Car

Energy

Night

use

Day

Time

Use
2 – Other Relays?

Honda Question:• Other Relays can reduce electric loads, however, we are unsure ho

measure their impact:

• Power window relay• Wiper motor relay• Power tailgate relay• Defroster relay• Seat heater relay

Honda has lifetime usage “data” to determine durability standards. Co

the basis for discussion?
3 – Engine Heat Recovery

Definition

“Engine heat recovery means a system that captures heat that woube lost through the exhaust system or through the radiator and conheat to electrical energy that is used to meet the electrical requiremvehicle. Such a system must have a capacity of at least 100W to acg/mi of credit. Every additional 100W of capacity will result in an adg/mi of credit.”

Honda Comment• We want to confirm credit calculation for systems over 100W. 

Basic Credit Formula Concept = 0.007grams/mile-Watts x CapaciCapacity > 100W

1. If capacity is 150W, then Credit should be 150 x .007 = 1.12. Definition of system capacity

• Peak value, Test cycle average value? Or ?• Honda recommends capacity should be based on 5 cycle ave

because it encourages system design to be most efficient durinrepresentative driving.
Definition

Active transmission warm-up means a system that uses wasfrom the exhaust system to warm the transmission fluid to an operating temperature range quickly using a heat exchanger exhaust system, increasing the overall transmission efficiencreducing parasitic losses associated with the transmission fluas losses related to friction and fluid viscosity. (1.8 grams/miActive engine warm-up means a system using waste heat froexhaust system to warm up targeted parts of the engine so treduces engine friction losses and enables the closed-loop fcontrol more quickly. It would allow a faster transition from cooperation to warm operation, decreasing CO2 emissions, anincreasing fuel economy. (1.8 grams/mile)

Honda Proposal

• Honda’s system design can effectively use one heater core t

effectively warm-up both the engine and the transmission sy

• Honda proposes to receive both credits for our one, advance

technology, integrated-design system. (3.6 grams/mile)

4 – Active transmission warm-up / Active engine 
4 – Active transmission warm-up / Active engine 

Does this baseline modeling assumengine coolant loop to warm transm
5 – Electric Heater Circulation Pum

Definition

Electric heater circulation pump means a pump system installed in a stop-svehicle or in a hybrid electric vehicle or plug-in hybrid electric vehicle that co

circulate hot coolant through the heater core when the engine is stopped dustart event. This system must be calibrated to keep the engine off for 1 min

when the external ambient temperature is 30 deg F.

Honda Comment

If a future start-stop + HVAC system is designed to maintain all heating funthan 1 minute during the same test cycle described above, can that system credits without an Electric Heater Circulation Pump? 

Electric Heater Circulation Pump 1.0

2.9

EPA

Start-Stop System 3.9*Passenger Car OEM

* Start Stop system that meets criteria of Electric Heat Circulation 
Definition

Solar reflective paint means a vehicle paint or surface coating which least 65 percent of the impinging infrared solar energy, as determinASTM standards E903, E1918–06, or C1549–09. These ASTM stanincorporated by reference; see § 86.1.

Honda Comment

1. It is difficult for all colors to reflect at least 65 percent of the impingin

solar energy. We think that we may install the solar reflective paint tcolors, and receive sales-weighted credits.

6 – Solar Reflective Paint
DefinitionEPA & NHTSA refer to total solar transmittance or Tts.Honda CommentLow Tts glass usually uses small metal flakes that can interfere with traof radio signals in and out of the cabin

– GPS– Cellphone– Garage Door Openers– Etc.

If Tds or Direct Solar Transmittance can reduce interior cabin temperasufficiently, we believe some credit should be allowed for this technolo

7 – Glass & Glazing (tts vs tds)
9 – Review of the AHM Policy Comme

Honda Comments• Minimum Fleet Percentages for some technologies

Honda believes this will actually delay introduction of new technologies, not speed them up. The introduction is often p

with a) FMC timing, b) profit margin on a car, c) higher-end mwith greater margin, lower volumes and therefore, lower risks

• Dealer-Installed Options:

Dealers have a robust business installing options prior to sal

install some GHG-effective device (like block heaters...), can earn credits.

• US Production vs. US Sales (mistake?)• Support Application of off-cycle credits to 2012 – 2016 mode

Logic and rationale are the same...