A research on CAFC regulation-oriented lightweighting strategy for automotive manufacturers

作者：Hao Han; Wang Sinan; Li Xiao; Liu Zongwei; Zhao Fuquan

来源：Qiche Gongcheng/automotive Engineering, 2017, 39(1): 1-8.

DOI：10.19562/j.chinasae.qcgc.2017.01.001

• Automotive manufacturers
• CAFC
• Contribution rate
• Lightweighting
• Optimization modeling
• Power performance
• Technology roadmaps
• Vehicle fuel economy

In view of that China's Phase-IV CAFC regulation is going to be implemented soon, the corresponding lightweighting strategy for automotive manufacturers under the background of Phase-IV CAFC regulation is studied in this paper. Firstly, an optimization model is established with minimizing the incremental cost as objective, lightweighting technology roadmaps chosen as design variables, and the safety and power performance complying with 2020 CAFC regulation and related standards as constraints. Then, with the model built, a simulation is conducted to analyze the quantitative relationships between lightweighting versus vehicle fuel economy, safety, power performance and incremental cost. Finally, an optimization model for a specific automotive manufacturer is built and solved with the optimum decision on the lightweighting technology for that enterprise obtained. The results show that for meeting the target of 2020 CAFC regulation under a condition of 10%-30% contribution rates of lightweighting strategy to CAFC, the curb mass of passenger car reduces by 2%-6% in average, with a cost rise for lightweighting of ¥1000-3000 per car in average.

• 出版日期2017
• 单位清华大学