Vehicle Acceleration Modeling in PC-Crash

Paper #:
  • 2014-01-0464

Published:
  • 2014-04-01
DOI:
  • 10.4271/2014-01-0464
Citation:
Rose, N., Carter, N., and Pentecost, D., "Vehicle Acceleration Modeling in PC-Crash," SAE Technical Paper 2014-01-0464, 2014, doi:10.4271/2014-01-0464.
Pages:
7
Abstract:
PC-Crash™, a widely used crash analysis software package, incorporates the capability for modeling non-constant vehicle acceleration, where the acceleration rate varies with speed, weight, engine power, the degree of throttle application, and the roadway slope. The research reported here offers a validation of this capability, demonstrating that PC-Crash can be used to realistically model the build-up of a vehicle's speed under maximal acceleration. In the research reported here, PC-Crash 9.0 was used to model the full-throttle acceleration capabilities of three vehicles with automatic transmissions - a 2006 Ford Crown Victoria Police Interceptor (CVPI), a 2000 Cadillac DeVille DTS, and a 2003 Ford F150. For each vehicle, geometric dimensions, inertial properties, and engine/drivetrain parameters were obtained from a combination of manufacturer specifications, calculations, inspections of exemplar vehicles and full-scale vehicle testing. In each case, the full-throttle acceleration of the vehicles modeled in PC-Crash showed good agreement with the acceleration of the real vehicles in our road tests.
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