ChinaAutoRegs｜GB/T 24550-2009英文版/English/翻譯/汽車對行人的碰撞保護
The Protection of Motor Vehicle for Pedestrians in the Event of a Collision
1 SCOPE
This standard lays down the technical requirements and test method of the protection for pedestrians in the event of a collision.
This standard shall apply to vehicles of category M1 with gross vehicle mass exceeding 500 kg; and vehicles of category M2 with gross vehicle mass exceeding 500 kg but not exceeding 4,500 kg and of category N with gross vehicle mass exceeding 500 kg but not exceeding 4,500 kg could take this standard as reference. However, vehicles of category M2 and N, where the distance, measured longitudinally on a horizontal plane, between the transverse centre line of the front axle and the R-point of the driver's seat is less than 1,000 mm, are exempt from the requirements of this standard.
2 NORMATIVE REFERENCES
The following standards contain provisions which through reference in this text, constitute provisions of this Standard. For dated references, subsequent amendments (corrigenda excluded) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the Standards indicated below. For undated references, the latest edition of the applicable Standards referred to apply.
ISO 3784 Road vehicles -- Measurement of impact velocity in collision tests
ISO 6487 Road vehicles -- Measurement techniques in impact tests – Instrumentation
3 術語和定義
下列術語和定義適用於本標準I)
3.1
成人頭型試驗區域adult headform test area
車輛』前部結構的外表面區域，該區域的界限是前面至1700 mm的包絡線（WAD），後面至成人頭型的後面基準線，兩側至側面基準線。
3.2
A柱A pillar
從車輛地板延伸到頂部的最前、最外端的頂部支撐。
3.3
發動機罩前緣bonnet leading edge
車輛前上部外側結構的邊緣，包括發動機罩、翼子板、前照燈周圍上部和側面組件以及其他附件。
發動機罩前緣位置的基準線是由基準線距離地面基準平面的高度和與保險槓的水平距離確定。
3.4
發動機罩前緣離度bonnet leading edge height
發動機罩前緣上的任何一點，地面基準平面與該點發動機罩前緣基準線的垂直距離。
3.5
發動機罩前緣基準線bonnet leading edge reference line
長1000 mm的直尺與發動機罩前表面的接觸點的幾何軌跡。幾何軌跡是由當直尺平行於車輛的縱向垂直平面，且從垂直方向向後傾斜50。以及直尺底端距地面為600 mm時與發動機罩前緣接觸點所構成（見圖1) 。對於發動機罩上表面傾斜50。的車輛，直尺是連續接觸或多點接觸而不是一點接觸，此時直尺應從垂直方向向後傾斜40。來確定基準線。如果直尺下端首先與車輛接觸，則在側向位置上這些接觸點所構成。如果直尺上端首先與車輛接觸，則在側向位置上包絡線（WAD）為1000 mm的幾何軌跡所構成。如果保險槓上緣與直尺接觸，那麼保險槓上緣認為是發動機罩前緣。