1Volvo Trucks North America

VOLVO VOLVO TRUCKS TRUCKS WITH SCR WITH SCR

TECHNOLOGY TECHNOLOGY ELIMINATES ELIMINATES

ACTIVE ACTIVE REGENERATION REGENERATION

FOR 2010 FOR 2010 HIGHWAY HIGHWAY TRUCKSTRUCKS

2Volvo Trucks North America

“I resent having to train my driver to be an integral part of your engine’s diesel emission control device.”

Customer Comment, October 2007:Customer Comment, October 2007:

3Volvo Trucks North America

EPA’07 Exhaust Aftertreatment EPA’07 Exhaust Aftertreatment InstructionsInstructions

4Volvo Trucks North America

Volvo Engines For EPA’10Volvo Engines For EPA’10

VOLVO’S SCR TECHNOLOGYELIMINATES

ACTIVE REGENERATION FOR 2010 HIGHWAY TRUCKS

5Volvo Trucks North America

No Active RegenerationNo Active Regeneration

All Passive RegenIntegration of the functions of the engine, the DPF, and SCRReduced levels of EGRHigher NOx outNOx regenerates the PMThe SCR process “Nukes the NOx”Clean Air + Superior Fuel Economy

6Volvo Trucks North America

• No dash lights come on

• No special driver training or familiarization

• Much lower system temperatures

• Reduced thermal cycling

• No limitations on where the driver can go

• No interruptions of PTO activity

• Higher productivity

• Reduced consumption of fuel

• Lower operating expenses

• All the driver has to do is periodically top off the DEF tank

• “We REALLY take the burden off the driver and the customer.”

No Active RegenerationNo Active Regeneration

7Volvo Trucks North America

No Active RegenerationNo Active Regeneration

8Volvo Trucks North America

• First five EPA’10 Trucks with Customer, Oct.’07

• Now 30+ EPA’10 Test Trucks In Customer Fleets

• 2 Million Miles+ – No Active Regenerations

No Active RegenerationNo Active Regeneration

9Volvo Trucks North America

• Early Demonstration Concept

• 23 units

• Volvo D12 with SCR/DPF

• Not EPA’10

• No Active Regenerations

• 9,000,000+ miles

No 7th Injector system at all

No Active RegenerationNo Active Regeneration

10Volvo Trucks North America

No Active RegenerationNo Active Regeneration

Do we still use a 7th injector?

YES!!

• It is used in “extremely severe” operations that may occur once a month in some vocational operation… or once in a hundred months in over-the-road operation. This is extremely duty-cycle dependent.

• Even then, there will be no fuel injected for regens while driving. Only parked regens will occur.

• Even THEN, ALL the regens will be NO2-based (500o F.) rather than O2-based (1100o F.)

• As well, we have learned that it is useful to employ the 7th injector for cold start and warm-up of the DPF and SCR catalyst in frigid conditions.

11Volvo Trucks North America

What Do The Customers

Have To Say?….

No Active RegenerationNo Active Regeneration

12Volvo Trucks North America

“The trucks are running long miles, but we’re not having any issues with the SCR at all. They run through cold weather and they’ve run through the whole climate, very cold and warm. The fact that I don’t hear any problems about our DEF experience is also good.

‘I think the fact that we have run these two test trucks pretty successfully, without any problems, tells me that Volvo has its act together with the truck and the engine going into 2010.”

Ray KuntzChairman & CEO

Watkins-Shepard Trucking, Inc.

No Active RegenerationNo Active Regeneration

13Volvo Trucks North America

• A Major Advance in diesel emission systems

–Better Fuel Economy

–No Driver Involvement

–Near Zero Emissions

No Active RegenerationNo Active Regeneration