Vehicle Dynamics Challenges for Heavy Vehicles · Chassis & Vehicle Dynamics Engineering. Volvo...
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Vehicle Dynamics Challenges for Heavy Vehicles Stefan Edlund
Transcript of Vehicle Dynamics Challenges for Heavy Vehicles · Chassis & Vehicle Dynamics Engineering. Volvo...
Vehicle Dynamics Challenges for Heavy Vehicles
Stefan Edlund
Volvo Group Trucks Technology
It’s about Trucks ...
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Chassis & Vehicle Dynamics Engineering
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VTM – Virtual Truck ModelsFrom Reality … to Reality
Individual Front Suspension Volvo Dynamic Steering
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Global warming
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More than 150 cubic meter per second
0102030405060708090100
2000 2005 2011 2015 2020 2025 2030 2035
mb/d
Processing gainsLight tight oilOther unconventional oilNGLs
Fields yet‐to‐be foundCurrently producing
Crude oil:
Fields yet‐to‐be developed
Non conventional oil:
?
Volvo Trucks
EMS modules
RigidTractorDollyLinkSemitrailerCentral axle trailer
Standard vehicle (EU)
16,5 m 40/44 ton
EMS-vehicle (Sweden, Finland, The Netherlands and Denmark)
25,25 m 60 ton
Duo2-vehicle
32 m 80 ton
Volvo Trucks
Larger Vehicles ... Less Fuel & Emissions
Standard vehicle (EU)
16,5 meter, 40/44 ton
EMS-vehicle (Sweden, Finland, The Netherlands and Denmark)
25,25 meter, 60 ton
Duo2-vehicle
32 meter, 80 ton
73%85%
100%
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Tests on dedicated roads
Max 80 ton fördelat på 11 axlar
32 meter
Max 80 ton distributed on 11 axles
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EMS – European Modular System
Potential combinationsDirective 96/53
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TransportMission
• Vehicle Type• Body & Equipment• GCW
OperatingEnvironment• Road Condition• Topography• Curve Density • Altitude• Ambient Temp.
VehicleUtilization
• Operating Cycle• Speed changes• Manoeuvring • Yearly usage
Product Variance
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Product Variance
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1 “The Vehicle”
10+ “The Project”
200000 “The Production”
10200 “The Product Structure”
“The SVS:s” ~“The Platform”100 – 1000
Strategic Vehicle Specifications
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Analysis Quality & Throughput
“Error” or“1 / Quality”
“Analysis Time” or“1 / Throughput”
Model & DataTransparency
Concept Evaluation Tools
FinalVerificationTools
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Multi-Criteria Optimization
Handling
Durability
Ride Comfort
Weight
Cost
TransportEfficiency
Agility
. . .
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In Control … of Control
Driver
Vehicle
Environment
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Environment
Driver
Vehicle
Reality Controler Brain
Interactions
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Example – ViPDriver Variance
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VehicleEnvironmentDriver
Off-lineSimulation
DrivingSimulator
ProvingGround
FieldTest
RealLife
Scenario
What’s real?
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VehicleEnvironmentDriver
Off-lineSimulation
DrivingSimulator
ProvingGround
FieldTest
Scenario
RealLife
Driving Simulator Studies
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Accident Research
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Vehicle Dynamics Challenges# 1
New Vehicle Combinations
# 2Product
Configurations
# 3Lean
Simulations
# 4Driver Models
# 5Scenarios
One more thing ...
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Tyre Models!
Variation in Cornering Stiffness due to test methods 20 - 40%
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Balance
ConceptValidation
RequirementDefinition
ProductOptimisation
Limited knowledge aboutCustomer Behaviour & Perceptions in their Operating Environments
can not be compensated by state-of-the-art Analysis Methods
All areas have to be in balance and continuously improved
Validation feedback driven Method development
Verification feedback driven Method development
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The end
