Vehicle System Integration (VSI) Laboratory
ORNL's Vehicle Systems Integration (VSI) Laboratory is accelerating the pace of powertrain development by performing prototype research and characterization of advanced systems and hardware components. The VSI Lab is capable of accommodating a range of platforms from advanced light-duty vehicles to hybridized Class 8 powertrains with the goals of improving overall system efficiency and reducing emissions.
The lab comprises a powertrain test cell with twin AVL 500 kW AC transient dynamometers and a component test cell – both share energy storage systems and dSPACE hardware-in-the-loop real-time platform capabilities. The VSI Lab also features "X"-in-the-loop evaluation capabilities.
Hybrid Powertrain X-in-the-Loop Architecture
The VSI Lab features an "X"-in-the-loop platform to evaluate powertrain components or subsystems in a virtual vehicle environment, where "X" represents any experimental component or subsystem.
X-in-the-Loop Testing Benefits
- Flexibility to change virtual vehicle architectures and experimental conditions
- Accuracy of real engine and after treatment measurements
- Repeatability of a controlled transient operating environment
- Lower costs and safer environment compared with track or on-road vehicle analysis
For more information about Vehicle Systems Integration research, contact:
David Smith, Director
Center for Transportation Analysis
Oak Ridge National Laboratory
2370 Cherahala Boulevard
Knoxville, TN 37932