Vehicle Headlamp Aim Angle Test Procedure and Tolerance Research

Details

• Creators:
  Voyzey, Nick ; Mazzae, Elizabeth N. ; Baldwin, G H Scott ; Andrella, Adam T.
• Corporate Creators:
  United States. Department of Transportation. National Highway Traffic Safety Administration. Vehicle Research and Test Center
• Subject/TRT Terms:
  • Headlamps
  • Vehicle lighting devices
  • Lighting
  • Standards
  • FMVSS No. 108
  • Aim angle,
• Publication/ Report Number:
  DOT HS 813 759
• DOI:
  https://doi.org/10.21949/7dw5-3c90
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report
• Corporate Publisher:
  United States. Department of Transportation. National Highway Traffic Safety Administration
• Abstract:
  This report summarizes research conducted to support NHTSA’s response to requirements of the Infrastructure Investment and Jobs Act (IIJA) of 2021 to amend Federal Motor Vehicle Safety Standard No. 108 “to include performance-based standards for vehicle headlamp systems (A) to ensure that headlights are correctly aimed on the road; and (B) requiring those systems to be tested on-vehicle to account for headlight height and lighting performance.” This effort focused on determining a test procedure for measuring lower beam headlamp aim angle and gathering data to provide a basis for developing aim angle tolerance values for use in a new FMVSS No. 108 requirement. The research performed provide data from which an on-vehicle headlamp aim angle tolerance with consideration for headlamp mounting height could be asserted.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/88136/dot_88136_DS1.pdf
• File Type:
  [PDF - 5.68 MB]
• Collection(s):
  NHTSA - Vehicle Safety Research
• Main Document Checksum:
  urn:sha-512:b02a3b1a4bded1073259e20a3b9de3af1a166a78da6b48ddf44ff068f754906d7d2d6e841e765edfaed3ef39fbff222a7b2b05936f89667ec992a311b2d22415