中汽中心于10月9日紧急向各大车企发送关于制动踏板总成材质的调研问卷,着重关注非金属材质的应用情况1。此举被视为相关法规修订的准备工作1。
目前我国强制性国标对制动踏板的要求相对基础,仅规定车辆最大制动效能时踏板力需≤500N1。而推荐性标准则提出了更高要求:在施加1500±20N压力后持续5秒并重复5次的条件下,踏板永久变形幅度应≤5mm且无裂纹1。由于强制性标准宽松,车企内部制定的标准差异较大1。
多家车企已公开其制动踏板的材质和承压标准1。岚图采用多层高强度钢板主梁设计1,广汽本田雅阁采用高刚性钢材可承受3000N以上压力1,猛士汽车全系产品制动踏板使用高强度材料承压能力远超国标1,比亚迪仰望系列的制动踏板采用金属材质并执行2500N的企业标准1。
The China Automotive Research Center (CATARC) issued an urgent survey questionnaire to major automakers on October 9 regarding brake pedal assembly materials, with particular focus on non-metallic material applications 1. The survey is viewed as preparatory work for potential regulatory revisions 1.
Current mandatory national standards require a maximum brake pedal force of 500 Newtons during maximum braking 1. However, internal standards vary significantly across manufacturers. According to recommended standards, after applying 1,500±20 Newtons of force repeated five times for five seconds each, brake pedals should exhibit permanent deformation of no more than 5 millimeters and show no cracks 1.
Several automakers have already established their own brake pedal specifications exceeding baseline requirements. Lantu vehicles feature multi-layered high-strength steel beam designs in their brake pedals 1, while Honda Accord models from Guangqi Honda utilize high-rigidity steel capable of withstanding over 3,000 Newtons of pressure 1. Mengshi Automotive has implemented high-strength materials across its entire product line with brake pedal load capacity significantly exceeding national standards 1. BYD Yuan Plus models employ metal brake pedals with an internal standard of 2,500 Newtons 1.
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