Road Simulators/Mileage Accumulation Dynamometers
Office of Automotive Engineering



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Image: One of the four newly installed road simulators is configured to support four-wheel drive vehicles.

One of the four newly installed road simulators is configured to support four-wheel drive vehicles and supports hybrid vehicle testing under real-world conditions.


Image of Mileage Accumulation Capabilities Video

Video of Mileage Accumulation Capabilities

Using 24 road simulators, Southwest Research Institute (SwRI) conducts rapid, cost-effective, round-the-clock mileage accumulation at speeds up to 100 miles per hour. These chassis dynamometers accommodate most cars and light trucks up to 7,000 pounds, conducting any transient or steady-state driving cycle.

Of the 24 road simulators, one dyno offers four-wheel-drive capabilities and supports hybrid vehicle testing under real-world conditions. Four newly installed dynos have temperature- and humidity-controlled engine inlet air to ensure consistent operating conditions year-round. An additional high performance dyno is capable of supporting vehicles up to 400 horsepower.

SwRI evaluates durability and performance of automotive fluids, fuels, components and emission control systems. Features include:

  • Transient and steady-state driving cycles
  • Controlled and repeatable tests
  • No downtime for adverse weather
  • Side-by-side component comparisons
  • Efficient multiple component testing
  • Safe operation
  • Convenient and real-time access to test data
  • Ability to test prototype systems not yet roadworthy

Related Terminology

road simulators  •  chassis dynamometer  •  powertrain durability testing  •  hybrid vehicle testing  •  mileage accumulation  •  road simulation testing  •  dyno testing  •  vehicle fleet testing  •  vehicle aging  •  fleet fuel testing  •  vehicle fuel testing

Benefiting government, industry and the public through innovative science and technology
Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 10 technical divisions.
05/14/14