Benefits and challenges of controlling a LED AFS (adaptive front-lighting system) using fuzzy logic

Abstract

The vehicular illumination system has undergone considerable technological advances in recent decades such as the use of a Light Emitting Diode (LED) Adaptive Front-lighting System (AFS), which represents an industry breakthrough in lighting technology and is rapidly becoming one of the most important innovative technologies around the world in the lighting community. This paper presents AFS control alternatives using fuzzy logic (types 1 and 2) to determine its operating parameters taking into consideration the road conditions in the state of São Paulo (Brazil). Fuzzy logic is a well-known extension of the conventional (Boolean) logic that enables the treatment of uncertainty present in the information through the definition of intermediary membership values between the "completely true" and the "completely false". This technique or modeling strategy is particularly important when a multi-parameter decision must be taken or the decisions are based on the human knowledge. The results show the potential of the methodology proposed and its suitability for light control providing safer nighttime driving.

A review of automotive intelligent and adaptive headlight beams intensity control approaches

“…48 The study concluded that the fuzzy controller excellently executed the parameters set for control. In another study, Lukacs et al 49 presented adaptive front light system (AFS) control alternatives using fuzzy logic (types 1 and 2) to determine operating parameters, considering road conditions in the state of Sa˜o Paulo, Brazil. The fuzzy logic control technique, or modeling strategy, proved valuable when making multi-parameter decisions or decisions based on human knowledge.…”

The Bending Mode Control Method of AFS System Based on Preview Control

“…He k + Figure 6 The principle of the preview control of the headlamp bending angle According to the preview control algorithm [20] of the headlamp bending angle, AFS control unit is established, main modules include: preview control algorithm module, stepper motor module, feedback correction module and fuzzy module [21][22][23][24] .…”

Planning the Impossible with Lighting Solutions: A Strategy to Enter Brazil

“…Metalumen will be designing their products to meet the customer's requirements and will therefore have control over the products' specifications and will allow them to utilize the customization capabilities that they are renowned for. In this same sense, they will have full control of their own processes and will be able to ensure that the quality of their product and the customer service that goes along with it is up to their domestic standards (Lukacs et al 2011). …”