关于欧标单灯及60%法规的解读.pdf

Informal Document No. GRE-62-02/Rev.1 Transmitted by the expert from GTB (62nd GRE, 6 - 9 October 2009, agenda item 5(e)) GTB Proposals to amend Regulations Nos. 7 and 48 to introduce Interdependent Lamp Systems (ECE/TRANS/WP.29/GRE/2009/62 and ECE/TRANS/WP.29/GRE/2009/63) Additional Explanation (Revised) (to complement the justification included with the GTB proposals) Changing Requirements Influencing Rear Signal lamp Design CO2 reduction objectives. Aerodynamics for Fuel efficiency lead to greater rear-end curvature Style is an important factor for vehicle sales and competitivity Good lit appearance by increasing lamp size and larger illuminated areas leads to increased safety Vehicle owners require a wide rear door or trunk entrance. Leads to less space to mount lamps on the fixed part of the vehicle. Please note: These images are for illustration purposes only and do not relate to specific installations Wide Tail-gate or Trunk Opening – Implications and Solutions Narrow lamp mounted on fender “Wrap- around” curvature makes it difficult to achieve 45° inboard geometric visibility Geometric Visibility assured to 20° due to the photometric grid Tail gate or Trunk in open position Additional lamp mounted on the tail-gate or trunk lid Provides 45° inboard geometric visibility Provides enlarged illuminated area and improved appearance when operated in conjunction with the fender mounted lamp. Tail gate or Trunk in closed position Please note: These images are for illustration purposes only and do not relate to specific installations Wide Tail-gate or Trunk Op