Flat-Trac Comfort Roadways
Apply driver gas/brake inputs along with longitudinal and vertical excitation at each spinning tire patch of a vehicle with an active drive train on straight roads to study suspension-to-body vibration behavior or occupant ride comfort. The dynamic version of this system can replicate sustained high accel/decel powertrain loads along with highly dynamic synthetic or road longitudinal vibration inputs with high precision and repeatability.
Applications
Ride / Comfort Assessment
Noise and Vibration Transmissibility
Energy Consumption
Drivability
Powertrain Tuning
Test Specimens
Passenger Cars and SUVs
Light Trucks
Axle-Suspension Subsystem
Key Product Features
Innovative Technology
Flat-Trac moving belts accommodate spinning tires to create real-world vehicle-to-road interface
Versatile
Full-featured programming environment enables replication of all scenarios within a vehicle’s operational design domain
Accelerated Testing
Lab-based solution shifts functional verification forward in development to streamline final proving ground validation
Unmatched Expertise
Advanced hybrid simulation techniques extend comfort roadway utility into the early stages of vehicle design
Model Comparison
Comfort Roadway
Assess ride comfort with lightly loaded powertrain and vertical excitation
Longitudinal power density: 29 kW
Dynamic Comfort Roadway
Assess ride comfort with heavily loaded powertrain and/or dynamic longitudinal vibration inputs and vertical excitation
Longitudinal power density up to 280 kW
Technical Overview
Integrated Lab View
System User Interface
Comfort Roadway (CRW) System Corner (x4)
Utility Distribution System
Trackwidth & Wheelbase Positioning system
Seismic Mass
Pit Cover Assembly (Option)
Specifications
Units
Comfort Roadway
Dynamic Comfort Roadway
Tire Input Assembly - Vertical
Maximum Vertical Displacement
± mm
50
50
Maximum Vertical Velocity
± m/sec
2
2
Maximum Peak Vertical Acceleration
g
20
20
Operation Frequency
Hz
0.1-50
0.1-50
Tire Input Assembly - Longitudinal
Maximum Belt Speed
k/h
0.5-180
0.5-180
Maximum Transient Peak Input Power / Tire
kW
29
280
Maximum Longitudinal Acceleration
g
N/A
8
Inertia Simulation (~1800 kg Vehicle)
g
~0.15 (accel/decel)
~0.4 (accel) to 0.9 (decel)
Maximum belt steady state longitudinal force capacity
kN
N/A
~6 / 3.7 (braking/driving)
Maximum Longitudinal Frequency
Hz
N/A
40
Motor
Internal
External
Tire Input Assembly - Lateral
Lateral Force Reaction
N
1250
1250
XY Positioning
Vehicle Trackwidth Range
mm
1200-2100
1200-2100
Vehicle Wheelbase Range
mm
2000– 3800
2000– 3800
3-Link Strut Restraint
Restraint Axes
Lateral, Longitudinal, Yaw
Free Axes
Vertical, Pitch, and Roll
Restraint Load Capacity (each link)
kN
20.0
20.0
Sample Link
System Options
Vehicle Driving Robot
Vehicle Bus / ECU Integration
Specimen Transducers (force, displacement, temperature, pressure, current, etc)
Additional data acquisition capability
Facility and peripheral items
Fuel consumption devices
Vehicle Lift
Exhaust Collection System
Pit Cover Assembly
Cooling fan assembly
Extended Training
System Toolkit
System Spare Parts
More available upon request
Service and Support
Our experts are here to help keep you up and running.
Related Products, Parts or Accessories
Resources
Microsite
Vehicle Dynamics Showcase Lab
Higher Fidelity - Deeper Insight - Faster Development
