U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Can We Study Cars with V2 Rolling Resistance Terms?

File Language:
English


Details

  • Creators:
  • Corporate Creators:
  • Subject/TRT Terms:
  • Resource Type:
  • Geographical Coverage:
  • Edition:
    Informal Note 12
  • Corporate Publisher:
  • Abstract:
    Because the rolling behavior of a car with a V2 term is described by a non-linear differential equation, it had been assumed that no closed-form solution existed and that we would have to use a numerical integration procedure (e.g. Runge-Kutta) to solve the associated differential equation. Using a closed-form solution in PROFILE and SPEEDCON allows them to be an order of magnitude faster in running time as compared to using a numerical integration procedure. However, it now appears that even with a V2 term, there does exist a closed-form solution for the associated differential equation. The derivation of velocity and position as a function of time is the focus of this Informal Note.
  • Format:
  • Funding:
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:c2a17a2139494f0b6ed6bd7b61072a37421681c0ef2e8364c0c46858062a2b0b8236bdf5dc436992dc4a87ec215f8f5a8bb4110827c463407f257753049b8bdc
  • Download URL:
  • File Type:
    Filetype[PDF - 498.21 KB ]
File Language:
English
ON THIS PAGE

ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.