Cummins SuperTruck Program - Technology Demonstration …...Cummins SuperTruck Program Technology...
Transcript of Cummins SuperTruck Program - Technology Demonstration …...Cummins SuperTruck Program Technology...
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Innovation you can depend on™
David Koeberlein Principal Investigator 3 October 2011
Cummins SuperTruck Program Technology Demonstration of Highly Efficient Clean, Diesel Powered Class 8 Trucks
This presentation does not contain any proprietary, confidential, or otherwise restricted information
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n Program Objectives
Objective 1:
Demonstrate 20% engine efficiency improvements in test cell
Objective 2
a: Demonstrate a 50% drive cycle freight efficiency improvement
b: Demonstrate >50% freight efficiency improvement on 24hr cycle
Objective 3:
Scope & demonstrate improvements for 30% engine efficiency gain
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Baseline: Peterbilt 386 truck & conventional van trailer with 2009 Cummins ISX
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Program Participants - Collaborations
Cummins Inc. - Cummins Fuel Systems - Cummins Turbo Technologies - Cummins Emissions Solutions - Cummins Electronics - Cummins Filtration - Modine - VanDyne SuperTurbo Inc. - Oak Ridge National Lab. - Purdue University
Peterbilt Motors Company - Eaton - Delphi - Modine - Utility Trailer Manufacturing - Bridgestone - U.S. Xpress - Dana - Bergstrom
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Program Lead
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n SuperTruck Demonstration Plan
Dec2012
Drive Cycle Freight Efficiency Demo
Dec2013
Drive & 24hr Cycle Freight Efficiency Demo
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4 Year Program: April 2010 to April 2014
Dec2011
50% BTE Demonstration
Apr2014
55% BTE Scoping &
Demonstration
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n Approach to Technology Improvements
Weight Reduction Note: Analysis of 27 Drive Cycles for Class 8 Vehicles with a Variety of Seasons (Summer, Winter, etc.)
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Engine Losses Urban: 58-60%
Interstate: 58-59%
Aerodynamic Losses Urban: 4-10%
Interstate: 15-22%
Inertia / Braking Urban: 15-20% Interstate: 0-2%
Drivetrain Urban: 5-6%
Interstate: 2-4%
Auxiliary Loads Urban: 7-8%
Interstate: 1-4%
Rolling Resistance Urban: 8-12%
Interstate: 13-16%
Peterbilt & Utility Cummins Modine
Bridgestone Eaton & Dana Delphi
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0 14
25.5
3.5 2.5 3 10
1.5 3.5
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Drive Cycle 24hr duty cycle
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Vision Roadmap to Target Freight Efficiency
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Demo #1
Demo #2
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Approach – Engine Technology Roadmap
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EGR Loop
Fuel System Advanced Combustion
Variable Valve
Actuation
Waste Heat Recovery
Turbo Technology
Materials
Aftertreatment
Controls
Base Engine -PCP
- Friction/Parasitics
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8 *WHR - Cummins Organic Rankine Cycle Waste Heat Recovery
42 44 45 46 47 48 49 50
Cummins Advanced Engine + High Efficiency AT + WHR*
43 51 Engine Brake Thermal Efficiency (%)
Status Program Baseline
42%
Program Requirement
50% BTE
Gas Flow Lower ∆P EGR loop Volumetric η Gains Aftertreatment
WHR Cooling System Design Turbine Expander
Parasitics Friction Pump Power
Powertrain Optimization Turbocompound
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Pressure Differential Velocity Profile
Vehicle and Engine Cooling System Design Underhood Air Flow and Temperature Analysis
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Successful Packaging of the Engine + Waste Heat Recovery In the Aerodynamic Vehicle Design
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n Comprehensive Tractor/Trailer
Enabling Technologies
Highly Efficient Engine/ Aftertreatment
Transmission & Axle Technology
Next Generation Tires
Enhanced Tractor and Trailer Aerodynamics Idle APU Management
Route Performance Management
Driver Display with Fuel Economy Tools
Weight Reduction
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Baseline Freight Efficiency Testing
• Drive cycle route • 311 mile roundtrip • 8 controlled starts/stops • 550ft elevation change
• Baseline drive cycle freight efficiency test complete
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Vehicle Aerodynamic Results
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n Vehicle Weight Reduction
– Freight Efficiency Improvement
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Frei
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>3% Freight Efficiency Improvement With Vehicle Weight Reduction
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Solid Oxide Fuel Cell APU Next generation fuel cell APU unit builds are in progress
– Proceeding with calibration & test activities – Conducting vehicle electrical integration analysis
• Drive cycle & 24hr cycle – Key next step: Efficiency model validation
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• Program remains on schedule • Program roadmaps meet or exceed targets • Current engine BTE status is 48%.
– Implementing technology for 50% BTE target • Completed integration of a Waste Heat Recovery capable
truck cooling module with system design & analysis • Designed drive cycle route • Completed baseline vehicle testing • CFD results exceeding truck/trailer aerodynamic goals for
Demo #1 (Objective 2a) • Fuel cell APU in testing phase • Vehicle system integration proceeding without any major
issues
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