Development of Active Headlight System

Lighting design of headlamp for adaptive front‐lighting system

“…Koito's earliest document (Kobayashi, 1991) mentions two kinds of optical systems in regard to AFS reference documents (ARTC, 2004;Desai, 2005;Decker and Schmidt, 2005;Yamamoto et al, 2004;Neumann, 2004;Kobayashi and Hayakawa, 1991;Hogrefe, 1997;Aoki, 1997;Lowenau, 1998;Manassero and Dalmasso, 1998;Hogrefe, 2000;Hamm and Rosenhahn, 2001a;Hoffmann, 2001;Sato et al, 2001;Hamm and Rosenhahn, 2001b;Sivak, 2002;Hamm, 2002a;Loewenau and Strobl, 2002;Hamm, 2002b;Hamm and Rosenhahn, 2003;Boebel and Rosenhahn, 2003; Downloaded by [Ryerson University Library] at 12:17 05 June 2016 Rosenhahn, 2003;Shibata et al, 2006;Bullough et al, 2006;Sivak et al, 2005;Anderson, 2004). One adds two rotatable mirrors in the general headlamp, and the other sets up moveable lenses (an aspheric concave lens and a Frensel convex lens) in front of the optical projecting system.…”

“…Hence, required light patterns overlap according to current driving conditions. Some research (Aoki, 1997;Hamm and Rosenhahn, 2001b;Hamm, 2002a;Boebel and Rosenhahn, 2003) depicts adjustable beam direction using rotatable reflectors with a base or auxiliary lamp. One paper (Sivak et al, 2005) analytically evaluates advantages and disadvantages of several curve-lighting strategies that move one or both low beams by various amounts.…”

Optimal strategies for adaptive curve lighting

“…The late 1980s and early 1990s saw a major revival of interest in adaptive lighting, especially in Japan (e.g., Aoki, Kitamura, Miyagawa, & Kaneda, 1997;Gotoh & Aoki, 1996;Kobayashi & Hayakawa, 1991;Sivak, Flannagan, Traube, Aoki, & Sayer, 1994;Wada, Miyazawa, Yagi, Takahashi, & Shibata, 1989). The next phase of increased research into adaptive lighting started in Europe with a Eureka Project called AFS (Advanced Frontlighting Systems; see AFS, 1994 and1996, for early AFS documents.…”

A novel multi-sensors fusion framework based on Kalman Filter and neural network for AFS application

“…A structure discussion was presented to describe sensor and headlamp components in Shadeed et al (2007). An On–Off control was put forward for active cornering light systems to enhance illumination effect in the turn process, which can provide a confined adaptive capacity to the environment (Aoki et al, 1997). A validation of the curve-bending strategies was conducted by lighting experts from Renault and Valeo, but the lighting optimization was not examined (Berssenbriigge et al, 2006; Dubrovin et al, 2000).…”