1 option
Vehicle-Specific Headlamp Mapping for Nighttime Visibility Explico Engineering Company
- Format:
- Book
- Conference/Event
- Author/Creator:
- Funk, Charles, author.
- Conference Name:
- SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2021
- Summary:
- Previous research has shown that specific levels of illumination are required for objects in the path of a vehicle to be detectable by its driver in dark or nighttime conditions. Understanding the specific illumination pattern of a vehicle headlamp beam is useful for the evaluation of nighttime visibility issues in accident reconstruction. Determining when an object appeared in the headlamp throw may be of particular importance to driver avoidance capabilities. Headlamp illumination patterns are unique to each vehicle make and model. In this study, the headlamp illumination patterns of multiple vehicles were mapped, and the measured illumination distances were compared with empirical predications. Individual headlamp illumination distances were found to be within the range of minimum and maximum empirical predictions. However, the empirical relationships can have large standard deviations, which can introduce additional uncertainty in an analysis. Mapping the headlamp illumination pattern of a specific vehicle significantly increases precision of illumination distance measurements. Several sets of duplicate exemplar vehicles (identical make, model and model year) were included to evaluate consistency in headlamp illumination distance. Additionally, a vehicle make and model may have different headlamp options, which affect the headlamp pattern. The importance of ensuring the proper headlamp type on a tested vehicle is presented. The results indicated that headlamp illumination distance for vehicles of identical make, model, and mode year grouping are substantially similar. This finding is useful in that if a subject vehicle is not available, the headlamp illumination distance of a similar exemplar vehicle can be considered representative
- Notes:
- Vendor supplied data
- Publisher Number:
- 2021-01-0880
- Access Restriction:
- Restricted for use by site license
The Penn Libraries is committed to describing library materials using current, accurate, and responsible language. If you discover outdated or inaccurate language, please fill out this feedback form to report it and suggest alternative language.