Caption: 
SwRI developed a connected and automated vehicle (CAV) chassis dynamometer that interfaces with traffic simulation software to provide a controllable, repeatable environment for testing the tools developed for the ARPA-E program. Located at SwRI’s Ann Arbor, Michigan, facility, the dynamometer runs the vehicle in response to traffic data. A data acquisition system collects relevant operating data to determine the efficiency improvements. 

Credit: 
Courtesy of Southwest Research Institute