This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
An Investigation Into Variation in Headlamp Aim Characteristics in Automotive Applications
Technical Paper
1999-01-3368
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Headlamp aim is a complex vehicle feature which is important for customer safety, and faults in the assembly adjustment process represent an important aspect of automotive faults. This paper examines the issue of headlamp aim through defining the fundamentals of headlamp aim, the different methods of aim setting, analysing two different aim measurement systems, and outlining the factors which cause variation in this vehicle characteristic. The results of conducted testing isolated the significant variables which influenced vertical headlamp aim. These factors were then utilised in the development of appropriate plant and customer specifications. For the vehicle types examined in this research, fuel tank quantity was found to be the most significant variable in terms of influencing headlamp aim from the plant to the customer. Through an understanding of variability in vertical headlamp aim (both setting and post-production variation) vehicle manufacturers can more accurately assess the different types of headlamp machinery in terms of their ability to meet required levels of customer satisfaction. The approach presented is not unique to headlamp aim and the principles are relevant to other vehicle features which must conform to a certain specification.
Recommended Content
Technical Paper | Automotive LED Headlamp Defogging: Experimental and Numerical Investigation |
Ground Vehicle Standard | Adaptive Driving Beam System |
Authors
Topic
Citation
Leslie, A., Toncich, D., and Masood, S., "An Investigation Into Variation in Headlamp Aim Characteristics in Automotive Applications," SAE Technical Paper 1999-01-3368, 1999, https://doi.org/10.4271/1999-01-3368.Also In
References
- Ford New Vehicle Quarterly Survey Ford Internal Report 1998
- Olson, P.L. Mortimer, R.G. Analysis of Sources of Error in Headlamp Aim SAE Technical Paper Series 740312 , March 1974
- Harmonized Vehicle Headlamp Performance Requirements SAE Recommended Practice J1735, January 1995.
- Abraham, B. Brajac, M. Variation from Measurement Systems IIQP Research Report RR-94- 01, January 1994
- Measurement Systems Analysis, Chrysler Corporation, Ford Motor Company, General Motors Corporation, 1995.
- Park, S. H. Robust Design and Analysis for Quality Engineering 1996