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A Look at Tractor Trailer Fuel Efficiency. SmartTruck Systems. Good Jobs Green Jobs Conference Washington DC 2/10/2013. SmartTruck Introduction. SmartTruck engineering and design was born in the aerospace, motorsports and automotive industries: Boeing and NASA Technology

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Smarttruck systems

A Look at Tractor Trailer

Fuel Efficiency

SmartTruck Systems

Good Jobs Green Jobs Conference

Washington DC 2/10/2013


Smarttruck systems

SmartTruck Introduction

  • SmartTruck engineering and design was born in the aerospace, motorsports and automotive industries:

    • Boeing and NASA Technology

    • Aerion Super Sonic Business Jet

    • Boeing MD 80 Winglet for aging aircraft

    • Racing and Motorsports

      • Daytona Prototype development

      • Indy Car

      • NASCAR

    • Ballistics

    • Ford Hybrid Concept Car

    • Bright Automotive Plug-In Hybrid Van

  • SmartTruck’s mission: transfer technology and design techniques from the aerospace industry to the trucking industry to produce groundbreaking, rugged performance equipment for tractors and trailers


Smarttruck systems

SmartTruck Introduction

  • SmartTruck’s focus is on advanced aerodynamics


Smarttruck systems

Fuel Performance Perspective

Class 8 Long Haul Truck

6.5

70,000

228

7,300

44

12

Large SUV

Compact Gas Hybrid

3,500

88

50

130

3,500

228

????

119e

3,300

196


Smarttruck systems

A Quick Look Back

  • 1977 Trans Am compared to now

    • HP, MPG

1977: Smokey and The Bandit


Smarttruck systems

The Car: 1977 to 2014

1977 Pontiac Trans Am

  • 1978 CAFE std: 18.0 mpg

  • Vehicle Specs:

    • V8 6.6L engine: 200 hp

    • ~14 mpg

2014 Chevrolet Camaro

  • 2014 CAFE std: 31.3 mpg

    • (74% improvement over 1978)

  • Vehicle Specs/Options:

    • Camaro 1LS

      • V6 3.6L engine: 323 hp

      • 22 mpg (combined)

    • Camaro 1SS

      • V8 6.2L engine: 426 hp

      • 19 mpg

    • Camaro ZL1 (shown in photo)

      • V8 6.2L Supercharged engine: 580 hp

      • 14 mpg


Smarttruck systems

The Tractor Trailer: 1977 to 2014

1977 Tractor Trailer Fleet

  • 4.6 mpg (Argonne National Labs)

  • Tractor:

    • No aerodynamic fairings

    • Exterior air cleaner and exhaust stacks

    • Square nose

  • Trailer:

    • 48’ Trailer limit

2014 Tractor Trailer Fleet

  • 6.5 mpg (41% improvement over 1977)

  • Tractor:

    • Aggressive aerodynamic improvements

  • Trailer:

    • 53’ Trailer limit


Smarttruck systems

Moving Forward

Where is energy lost with tractor trailers?

Engine Losses

Interstate: 58 – 59%

Aerodynamic Losses

Interstate: 15-22%

Inertia/Braking

Interstate: 0-2%

Drivetrain

Interstate: 2-4%

Auxiliary Loads

Interstate: 1-4%

Rolling Resistance

Interstate: 13-16%


Smarttruck systems

Opportunities for Fuel Savings

% Fuel Efficiency Improvements

Data from multiple sources: NESCCAF, ICCT, Calstart, Navistar


Smarttruck systems

Future Performance Targets

  • DOE SuperTruck Program: ~10 mpg

    • 50% improved Tractor Trailer efficiency (compared to 2009 MY)

      • 30/50% improvement achieved through vehicle technologies

      • 20/50% improvement achieved through engine technologies

      • Attain 50% engine brake thermal efficiency and demonstrate path to 55%

  • EPA/NHTSA FE/GHG Standards:

    • Phase I (MY 2014 – 2018): ~8 mpg

      • ~20% improvement by 2018 (compared to 2010)

      • Only address tractor and engine system (no trailers)

      • Also looks at vehicle efficiency: ton-miles/gal or g CO2/ton-mile

    • Phase II (TBD): may include trailers


Smarttruck systems

Aerodynamics

  • Due to the amount of highway miles driven, the tractor trailer would benefit more than any other vehicle on the road from advanced aerodynamic improvements.

  • If the tractor trailer had the aerodynamic performance of a well designed car it could achieve 11 mpg on the highway.


Smarttruck systems

Aerodynamics

Where is the Drag on Tractor Trailers?


Smarttruck systems

Trailer Aerodynamic Strategies: Retrofit

Side skirts

Nose Fairings

Boat tails

Under Trailer Systems


Smarttruck systems

Tractor Trailer Concepts


Smarttruck systems

Long Haul Impacts per Trip

Good Jobs Green Jobs

2,795 miles (95% long haul)


Smarttruck systems

Factors to Consider

  • Testing and validating fuel performance

  • Ensuring individual system improvements work with other system improvements

  • ROI vs. CapX

  • Trailer to tractor ratio: national average is 2.75

  • Driver training and capability

    • Drivers impacts can be 30%

  • Vehicle size and longer combination vehicles


Thank you

SmartTruck Systems

www.SmartTruckSystems.com

Mitchell Greenberg

[email protected]

Thank You

Good Jobs Green Jobs Conference

Washington DC 2/10/2013


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