PowerMixgoes Rig New Methodologies for Tractor Efficiency ... · 2016: John Deere world’s leading...
Transcript of PowerMixgoes Rig New Methodologies for Tractor Efficiency ... · 2016: John Deere world’s leading...
PowerMix goes Rig New Methodologies for Tractor Efficiency Optimization
AVL Product Development in Motion 2016Chalmers University of Technology, Gothenburg, Sweden
Claudia Pieke & Waldemar Stark
John Deere GmbH & Co KG
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Content
Introduction
• John Deere
• Agriculture Applications & Customer Requirements
• 6M & 6R Systems
• DLG PowerMix
Powertrain-in-the-Loop Test Rig at John Deere
• Motivation for DLG PowerMix replication
• Test Bed Configuration
• Simulation, Visualization, Automation
• Test Results
Conclusion
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John Deere
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• 70 Factories in 18 Countries - 57 000 Employees, Worldwide
• Agricultural equipment, Commercial & Consumer Equipment, Construction & Forestry and Credit
2016: John Deere world’s leading manufacturer of farm equipment.
Mannheim, Germany
Richards Bay, South Africa
Pune, India
Jiamusi, China
Stadtlohn, Germany
Gummersbach, Germany
Horst, NetherlandsEnschede, Netherlands
Bruchsal, Germany
Zweibruecken, Germany
Arc-les-Gray, France
Saran, France
Madrid,
SpainSantiago, Chile
Catalao, Brazil
Horizontina, Brazil
Rosario, Argentina
Saltillo, MexicoMonterrey, Mexico
Torreon, Mexico
Valley City, NDFargo, ND
Minneapolis, MN
Dubuque, IAHoric
on,
WI
Waterloo, IA
Moline, IL
East Moline, IL
Welland, Ontario
Edmonton, Alberta
Davenport, IA
Des Moines,
IA
Langley, British Columbia
Ottumwa, IA
Springfield, MO
Coffeyville, KS
Fuquay-
Varina, NC
Greeneville, TN
Augusta, GA
Kernersville, NC
Santo Angelo, Brazil
Joensuu, FinlandWoodstock, Ontario
Rock Valley, IA Klemme, IA
Tokoroa, New Zealand
Tianjin, China
Orenburg, Russia
1837: Blacksmith Shop - Self-Scoring Plough
John Deere
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Applications & Customer Requirements
Power Comfort
Reliability Efficiency
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6M & 6R Systems
Engine
Auxiliaries
Transmission
& Driveline
Wheels
Front Hitch
Front PTO
Rear Hitch
Rear PTO
Hydraulics
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Engine
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Drive Strategy
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DLG PowerMix: Overview
DLG = Deutsche Landwirtschafts - Gesellschaft
(German Agricultural Society)
• Official “practical tractor test” to compare fuel efficiency
• Replication of Field Applications (1st part):
Based on real field measurements
12 load cycles, part and full load cycles
Tractor is loaded dynamically (Drawbar, PTO, Hydraulics)
• Transporttest (2nd part)
Road measurement with trailer
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Ploughing(2 cycles)
Cultivating(2 cycles)
Rotary Harrow(3 cycles)
Mowing(3 cycles)
Manure Spreading(1 cycle)
Baling(1 cycle)
DLG PowerMix: 12 Field Cycles
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DLG PowerMix: Field Cycles
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Unscaled dynamic load cycle (Manure Spreading)
Total Load
Drawbar Load
PTO Load
Hydraulic Load
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DLG PowerMix: LoadCar for Field Cycles
400 m oval concrete track
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PTO load unit
Hydraulic load (SCV)
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Wheel brakes
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DLG PowerMix: Transport
• Hilly road
• 6 part runs (only uphill) + flat run
• Trailer weight depends on maxPTO power
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Powertrain-in-the-Loop Motivation for DLG PowerMix Replication
The DLG PowerMix
… is a representative test method but …
… it requires fully functional prototype at DLG
… test results are influenced by outer conditions
Goal: Replication of DLG PowerMix on test rig
• Predict DLG PowerMix results early in development program
• High level of repeatability
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Test Bed Configuration
• 4 Wheel dynos + PTO dyno• Hydraulic load unit• Air conditioning
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Test Bed Configuration
Visualization
Consum
ption
measure
ment
SpeedTorqueRequest
Fuel Exact
AVL In Motion
Pu
ma O
pen
Test Rig
Test
Bed
In
terfa
ce
Road – Tire ContactManeuver Steps
GasBrakeShiftRequest
Vehicle Model
SpeedTorque
Driver Model
3D Road Test Control
CAN
IPG Truck Maker
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Vehicle & Implement Models
PowerMix Field & PowerMix Transport
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Vehicle Model
• Multi-Body-System• Kinematics• Tires• Aerodynamics
DLG LoadCar
• Includes load cycles (desired values)
• Vehicle speed sensor for evaluation
• Kinematics (steering system)
DLG Trailer
• Multi-Body-System• Tires• Hitch
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Test Configuration
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Road Simulation
DLG Test Track & Road Profile „Odenwald“
Road Measurement Online Visualization
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Automation & Visualization
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Test Results: PowerMix Field
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Z3K (full load, rotary harrow)DLG ResultsTest Rig Results
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Good correlation forPTO Power
Comparable vehicle behavior
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Test Results: PowerMix Transport
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Uphill, part run #5
DLG ResultsTest Rig Results
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Comparable vehicle behavior shifting points
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Conclusion
• Powertrain-in-the-Loop test method provides powerful tool to replicate DLG PowerMix
• The test results show good correlation between DLG and Mannheim test rig
• Applicable in early development phase
• Reproducible test results (lab conditions, high level of automation)
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