Established in 1997, the European New Car Assessment Programme （Euro NCAP） provides consumers with a safety performance assessment for the majority of the most popular cars in Europe. Thanks to its rigorous crash te...Established in 1997, the European New Car Assessment Programme （Euro NCAP） provides consumers with a safety performance assessment for the majority of the most popular cars in Europe. Thanks to its rigorous crash tests, Euro NCAP has rapidly become an important driver safety improvement to new cars. After ten years of rating vehicles, Euro NCAP felt that a change was necessary to stay in tune with rapidly emerging driver assistance and crash avoidance systems and to respond to shifting priorities in road safety. A new overall rating system was introduced that combines the most important aspects of vehicle safety under a single star rating. The overall rating system has allowed Euro NCAP to continue to push for better fitment and higher performance for vehicles sold on the European market. In the coming years, the safety rating is expected to play an important role in the support of the roll-out of highly automated vehicles.展开更多
64 km/h 40%正面可变形壁障偏置碰撞是中国新车评价规则(C-NCAP)和欧洲新车评价规则(Euro-NCAP)测试重点考核的项目。为解决某车型在这种碰撞中存在的踏板侵入量严重超标问题,该文使用整车碰撞仿真模型,计算了踏板安装区域的变形程度,...64 km/h 40%正面可变形壁障偏置碰撞是中国新车评价规则(C-NCAP)和欧洲新车评价规则(Euro-NCAP)测试重点考核的项目。为解决某车型在这种碰撞中存在的踏板侵入量严重超标问题,该文使用整车碰撞仿真模型,计算了踏板安装区域的变形程度,分析了机舱纵梁的变形模式,优化了车身结构,增大机舱左纵梁的吸能效果和优化变形模式,加强中央通道区域的强度。仿真验证的结果表明:优化后碰撞中,油门踏板后移量降低了48.5%,上移量降低了29.1%;降低了踏板安装区域结构的变形,降低了踏板侵入量。因此,该优化方案解决了踏板侵入量超标问题,提升了整车安全性能。展开更多
为了满足2015-07-01施行的中国新车评价规程(C-NCAP)中防止后排女性乘员下潜要求,分析了后排HⅢ5th女性假人下潜力学机理,并提出了若干防下潜设计方案。简化后排HⅢ5th女性假人运动模型,建立腰带与假人不发生相对滑动的等价条件。针对...为了满足2015-07-01施行的中国新车评价规程(C-NCAP)中防止后排女性乘员下潜要求,分析了后排HⅢ5th女性假人下潜力学机理,并提出了若干防下潜设计方案。简化后排HⅢ5th女性假人运动模型,建立腰带与假人不发生相对滑动的等价条件。针对某车型的实际情况,对假人腹部倾斜角与安全带腰带作用力方向夹角的影响因素,提出了多种防下潜方案。用MADYMO软件,仿真验证了10种方案。实车验证了4种方案。结果显示:假人的髂骨力卸载率小于1 k N/ms。因此,按2015版C-NCAP判定为该方案无下潜发生,防下潜方案有效。展开更多
文摘Established in 1997, the European New Car Assessment Programme （Euro NCAP） provides consumers with a safety performance assessment for the majority of the most popular cars in Europe. Thanks to its rigorous crash tests, Euro NCAP has rapidly become an important driver safety improvement to new cars. After ten years of rating vehicles, Euro NCAP felt that a change was necessary to stay in tune with rapidly emerging driver assistance and crash avoidance systems and to respond to shifting priorities in road safety. A new overall rating system was introduced that combines the most important aspects of vehicle safety under a single star rating. The overall rating system has allowed Euro NCAP to continue to push for better fitment and higher performance for vehicles sold on the European market. In the coming years, the safety rating is expected to play an important role in the support of the roll-out of highly automated vehicles.
文摘64 km/h 40%正面可变形壁障偏置碰撞是中国新车评价规则(C-NCAP)和欧洲新车评价规则(Euro-NCAP)测试重点考核的项目。为解决某车型在这种碰撞中存在的踏板侵入量严重超标问题,该文使用整车碰撞仿真模型,计算了踏板安装区域的变形程度,分析了机舱纵梁的变形模式,优化了车身结构,增大机舱左纵梁的吸能效果和优化变形模式,加强中央通道区域的强度。仿真验证的结果表明:优化后碰撞中,油门踏板后移量降低了48.5%,上移量降低了29.1%;降低了踏板安装区域结构的变形,降低了踏板侵入量。因此,该优化方案解决了踏板侵入量超标问题,提升了整车安全性能。
文摘为了满足2015-07-01施行的中国新车评价规程(C-NCAP)中防止后排女性乘员下潜要求,分析了后排HⅢ5th女性假人下潜力学机理,并提出了若干防下潜设计方案。简化后排HⅢ5th女性假人运动模型,建立腰带与假人不发生相对滑动的等价条件。针对某车型的实际情况,对假人腹部倾斜角与安全带腰带作用力方向夹角的影响因素,提出了多种防下潜方案。用MADYMO软件,仿真验证了10种方案。实车验证了4种方案。结果显示:假人的髂骨力卸载率小于1 k N/ms。因此,按2015版C-NCAP判定为该方案无下潜发生,防下潜方案有效。
