Ultra High Strength Steel B Pillar Reinforcement Structure to Enhance Side Impact and Roof Crash as Reducing Weight
At present, the issues of most importance are the environment and fuel efficiency. Thus, automobile companies have endeavored to reduce the weight of cars and develop eco-friendly fuel. The other issue is for the safety of passengers. Especially the new N
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Abstract At present, the issues of most importance are the environment and fuel efficiency. Thus, automobile companies have endeavored to reduce the weight of cars and develop eco-friendly fuel. The other issue is for the safety of passengers. Especially the new NCAP and IIHS’s regulations involving roof crash test have strengthened for a few years. The automobile indutry should increase the weight of cars for the improved regulation for the safety of passengers. OEMs have to satisfy the two confrontational requirements as developing the new vehicle. Therefore this paper will present the way to fulfill the confrontational goal by making a new B pillar structure through TRIZ and adjusting 980 Mpa high strengthened steel into the Center Pillar Outer. Keywords Reinforcement
B Pillar Side impact Roof crash Weight Cost
1 Introduction In recent years, the development of fuel-efficient vehicles is becoming an issue. Along with environmental-friendly cars that make up the topic of the global automotive industry of the development of environmentally friendly fuels. The recent Motor Show, the fuel efficiency and the development of new alternative energy is to
F2012-F01-006 D. H. Kim (&) C. Y. Kang J. W. Seo J. H. Kim Y. B. Joo Senior Research Engineer, Hyundai/Structure Engineering Design Team1, Gyeonggi-do, Korea
SAE-China and FISITA (eds.), Proceedings of the FISITA 2012 World Automotive Congress, Lecture Notes in Electrical Engineering 197, DOI: 10.1007/978-3-642-33805-2_5, Springer-Verlag Berlin Heidelberg 2013
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Fig. 1 Side Impact Test
be mainstreamed with a focus on small cars than large cars. Saving vehicle’s weight has emerged as an important challenge with the development of new fuel [1–4]. In addition, while the passenger’s safety is emphasized, the B-pillar’s deflections (passenger survival space) are often measured at the time of the passenger side collision in IIHS. Even when the vehicle overturned, increasing the stiffness is required of the body through the ROOF CRASH TEST in order to protect passengers. In order to protect passengers and vehicles, the thickness of BIW should be increased to improve the performance of the collision and the strength of vehicle. However, in order to improve fuel economy, weight should be reduced at the same time; the OEM must satisfy the two contrary conditions. As improving both fuel economy and safety of passengers, weight should be reduced compared to the existing vehicle. In this paper, we focus on the HMC to develop new vehicles that meet the two opposing goals. The grade of the vehicle was preceded as B-SEGMENT. Considering worldwide products and side-impact crash, US side impact is set as the standard in this paper. The contents of this paper can be fully deployed horizontally in spite of a little difference. First, US collision performance related to B Pillar can be divided into three major. (Figs. 1 and 2 references) 1. US IIHS Side impact Performance 2. US IIHS Roof Crash Performance 3. US SINCAP Crash Performance The
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