Assessment of Headlamp Aim for New Vehicles

Voyzey, Nick; Mazzae, Elizabeth N.; Andrella, Adam T.; Transportation Research Center Inc; United States. Department of Transportation. National Highway Traffic Safety Administration. Vehicle Research and Test Center

doi:10.21949/1530272

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Assessment of Headlamp Aim for New Vehicles

2023-10-01
By Voyzey, Nick ; Mazzae, Elizabeth N. ; Andrella, Adam T.

[PDF-819.41 KB]

English

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Creators:

Voyzey, Nick ; Mazzae, Elizabeth N. ; Andrella, Adam T.

Voyzey, Nick ; Mazzae, Elizabeth N. ; Andrella, Adam T. Less -
Corporate Creators:

Transportation Research Center Inc ; United States. Department of Transportation. National Highway Traffic Safety Administration. Vehicle Research and Test Center

Transportation Research Center Inc ; United States. Department of Transportation. National Highway Traffic Safety Administration. Vehicle Research and Test Center Less -
Subject/TRT Terms:

[+]

Alignment Evaluation And Assessment Glare Headlamps Vehicle Design
Publication/ Report Number:

DOT HS 813 481
DOI:

https://doi.org/10.21949/1530272
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 an evaluation of new vehicle headlamp vertical aim angle state, or how well a new vehicle’s headlamps are aimed at the time of vehicle delivery to the purchaser. Using the inspection method from SAE J599 determined the vertical headlamp aim angle for a set of 15 vehicles. This procedure involves shining the lower beam headlamps at a screen and determining the location of the gradient cutoff location. The headlamp aim was measured for both passenger and driver side headlamps. Vehicles’ lower beam headlamp vertical aim angle was determined both with the vehicle was empty (no load) and loaded with weight to simulate a person in the driver seat (driver load). Headlamp aim was then judged based on the limits specified in SAE J599 as well as the manufacturers’ specifications for both test conditions.
Format:

PDF
Collection(s):

NHTSA - Vehicle Safety Research
Main Document Checksum:

[+]

urn:sha256:c4d1f4893a93e78b07e347d7773a909fca37fdd867811448cad72366dc8510f4
Download URL:

https://rosap.ntl.bts.gov/view/dot/72347/dot_72347_DS1.pdf
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Assessment of Headlamp Aim for New Vehicles

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