美国汽车研究中心CAR：2025-2035年汽车轻量化路线图研究报告（中译版）（44页）.pdf

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1、 CENTER FOR AUTOMOTIVE RESEARCH|2018 1 Vehicle Mass Reduction Roadmap Study 2025-2035 Carla Bailo Shashank Modi Michael Schultz Terni Fiorelli Brett Smith Nicklaus Snell November 2020 CENTER FOR AUTOMOTIVE RESEARCH|2020 2 Table of Contents Table of Contents.2 Acknowledgments.4 Background and Objecti

2、ve.6 Research Approach.7 Estimating Baseline Material Technology.7 Automaker Interview Summary.10 Opportunities for Steel.13 Opportunities for Aluminum.14 Opportunities for Polymer Composites.15 Opportunities for Magnesium.16 Material Mass Reduction Percentages used in this Study.17 Secondary Mass R

3、eduction.17 Understanding the Cost of Lightweighting.18 Cost of Materials and Manufacturing.18 Factors Affecting Automaker Lightweighting Targets.25 Method for Estimating Material Distribution.26 Material Roadmap and Incremental Cost($/kg)Unibody Vehicles.28 Material Roadmap and Incremental Cost($/k

4、g)Body-on-Frame Vehicles.33 Real-World Challenges.37 Bibliography.39 Appendix A:Curb Weight and Footprint Comparison.43 CENTER FOR AUTOMOTIVE RESEARCH|2020 3 List of Figures Figure 1:Generic Mass-Reduction Cost Curve.18 Figure 2:Hot-Rolled Steel Price Trend.19 Figure 3:Aluminum Price Trend.20 Figure

5、 4:Factors affecting CF and CFRP Cost or Price.21 Figure 5:2020 Baseline vehicle material distribution-Unibody.27 Figure 6:2020 Baseline vehicle material distribution-Body-on-Frame.27 Figure 7:Material Penetration for each Scenario-Unibody Vehicles.29 Figure 8:Technology Pathway and Relative Cost fo

6、r Unibody Cars and SUVs.31 Figure 9:Technology Pathway and Relative Cost for Body-on-Frame Vehicles.36 List of Tables Table 1:Vehicles studied for baseline material analysis.7 Table 2:Materials in MY2020 versus MY2016.8 Table 3:Curb weight and Footprint Comparison:current model year 2020 vs previous