Patrick Charbonneau VP Regulatory and Technology Affairs International Truck and Engine Corporation Diesel Emissions Summit II March 16, 2004.

Patrick CharbonneauVP Regulatory and Technology

AffairsInternational Truck and Engine

CorporationDiesel Emissions Summit II

March 16, 2004

2007 Technologies Today and Tomorrow

Green Diesel Experience PM filters on Production School

Buses

Nox Adsorbers Cost Efficiency

Virtual Sensors Taking advantage of computing

power

Eye Chart

WHATIS THEKEYTO

2007PRODUCTLIFE

PARTICULATEFILTERREGENERATION

Better

Or Worse

Better

Or Worse

Soot filter traps all soot particles and hydrocarbon.It needs to burn off the trapped soot particles.A key measure of its performance is the balance point temperature.The balance point temperature varies from engine to engine.

Balance point temperature: the engine operating condition and the exhaust temperature where soot burn off rate is greater than or equal to the engine soot output.

Green Diesel TechnologyGreen Diesel TechnologyTMTM School Bus: School Bus:Introduced in 2001Introduced in 2001

Green Diesel TechnologyGreen Diesel Technology® ® School Bus: School Bus: 2007 Technology Today2007 Technology Today

International 530E 275HP diesel engine International 530E 275HP diesel engine with special low-NOx calibrationwith special low-NOx calibration

Catalyzed diesel particulate filterCatalyzed diesel particulate filter Must use ultra-low-sulfur (<15ppm) Must use ultra-low-sulfur (<15ppm)

diesel fueldiesel fuel EPA/CARB emission certifications granted EPA/CARB emission certifications granted

March 2001March 2001 Customer deliveries began in 2001Customer deliveries began in 2001

100

150

200

250

300

350

400

450

500

550

600

0 200 400 600 800 1000 1200

Time (s)

Te

mp

era

ture

(C

)

15

35

55

75

95

115

135

De

lta

P (

mb

ar)

Average Temp Pressure Drop

PM Filter Regeneration

Green Diesel Field History

No Warranty Claims on PM filter Superb Reliability Record Hundreds in Production In the Field Since 2001 Happy Customers Proper Regeneration = Reliable

Product

Nox Adsorber

Cost Improvements Efficiency Improvements

2010 HD / 2009 LD

P2

CDPFTin

P

P1

MufflerNOx Adsorber

NOx or UEGO Sensor

ToutDOC

NOx Adsorber

NOx Adsorber Progress

Time History

0

15

25

35

50

65

75

85

100

April-01 November-01 May-02 December-02 June-03 January-04

Pre

cio

us

Met

als

Ind

ex

Effect of Feed Gas NOx Emission Level on LNT Performance

(HD FTP with Engine-aged LNT )

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Feed Gas High Feed Gas Low

NO

x (

g/b

hp

-hp

)

Engine_out NOx (g/bhp-hr)Tailpipe NOx (g/bhp-hr)

60% NOx Reduction

75% NOx Reduction

Same L/R Calibration

•LNT Absorbs About the Same Amount of NOx Regardless of Feed-gas Level, Resulting In Higher Efficiency with Lower Feed-gas Level

NOx Adsorber Conclusions

Precious Metals Content continues to Decline

Costs Improve

The NOx Adsorber Acts like a NOx Capacitor

Lower engine out NOx means Higher efficiency Catalyst

Virtual Sensors

How would you like a device that: You don’t maintain There is no warranty Its reliable Its durable It provides the results that you

want Does not physically exist

NOx - VS1.4

0

200

400

600

800

1000

1200

1400

0 200 400 600 800 1000 1200

Time (s)

NO

x

meas

vs1.4

NOx Virtual Sensor Validation

Conclusions

PM filters are successful in commercial vehicles today Proper regeneration will provide

functionality as well as reliability The typical class 8 truck load

factors will induce passive regeneration (like Green Diesel Buses)

Conclusions

NOx AdsorbersCost Improvements = precious metals reductions

Cost Improvements = Efficiency improvements

Virtual SensorsTaking advantage of computing power

It is very cost effective if “nothing” is there