Explanation of motorcycle AFS Agenda 10(a) The 60 th Session of GRE 01-03 October 2008 JAPAN AUTOMOBILE STANDARDS INTERNATIONALIZATION CENTER AFS : Adaptive.

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Presentation transcript:

Explanation of motorcycle AFS Agenda 10(a) The 60 th Session of GRE October 2008 JAPAN AUTOMOBILE STANDARDS INTERNATIONALIZATION CENTER AFS : Adaptive Front-lighting System  Purpose This system improves the visibility of motorcycle which is cornering at the nighttime.  Functions This system changes the illumination area of headlamp automatically in according with the bank angle of motorcycle.

Explanation of motorcycle AFS Agenda 10(a) The 60 th Session of GRE October 2008 JAPAN AUTOMOBILE STANDARDS INTERNATIONALIZATION CENTER δ ： Headlamp adjustment angle δ ： bank angle f ： centrifugal force Mg : weight How to calculate bank angle ｖ :vehicle speedω ： yaw rate ｆ： centrifugal force δ ： bank angle (equal to headlamp horizontal inclination adjustment angle) Mg ： weight

Explanation of motorcycle AFS Agenda 10(a) The 60 th Session of GRE October 2008 JAPAN AUTOMOBILE STANDARDS INTERNATIONALIZATION CENTER ECU Vehicle speed sensor Yaw rate sensor Headlamp unit motor Angle sensor (potentiometer) System construction diagram

Explanation of motorcycle AFS Agenda 10(a) The 60 th Session of GRE October 2008 JAPAN AUTOMOBILE STANDARDS INTERNATIONALIZATION CENTER Illumination area of conventional headlamp Illumination area of AFS headlamp Expanded illumination area

Explanation of motorcycle AFS Agenda 10(a) The 60 th Session of GRE October 2008 JAPAN AUTOMOBILE STANDARDS INTERNATIONALIZATION CENTER START We demonstrate how the AFS works when the motorcycle runs along these corners. Demonstration course