Yang S.J.,Hyundai Motor Group
SAE Technical Papers | Year: 2015
Each year, more than 270,000 pedestrians lose their lives on the world's roads. Globally, pedestrians constitute 22% of all road traffic fatalities, and in some countries this proportion is as high as two thirds of all road traffic deaths. Millions of pedestrians are non-fatally injured and some of whom are left with permanent disabilities. These incidents cause much suffering and grief as well as economic hardship. To lower the rate of pedestrian injuries and fatalities, the Euro-Ncap committee adopted an overall impact star-grade system in 2009, making the pedestrian protection cut-off score required to obtain the best impact-star grade more stringent until 2016. It is very difficult to surpass the enhanced pedestrian cut-off score using past methods. In this paper, I determine the hood's worst-performing areas in terms of pedestrian protection by analyzing previous pedestrian test results. To improve performance at these areas, I developed a Damping latch & hinge and a 3-corner rearward pop-up system. I then proceeded to optimize the design of the hood inner panel, Long hood + Damping latch & hinge, and 3-corner rearward pop-up systems. Each system was put through a real vehicle pedestrian protection test to verify that it could improve pedestrian protection performance at the designated areas. As a result, we found that a 3-corner rearward pop-up system is the best method for pedestrian protection with consideration for cost, weight, and design. Copyright © 2015 SAE International.
Park J.,Hanyang University |
Ahn S.,Hanyang University |
Yoo J.W.,Hyundai Motor Group
Journal of Sound and Vibration | Year: 2016
The geometry of a rectangular plate used in a structural application is an important design parameter that influences the vibrational response of the plate when it is subjected to an impact. In this study, the influence of a cross-sectional discontinuity on the vibration characteristics of viscoelastically supported plates was investigated. The discontinuity was induced at a specific location in the length-wise span. Experimental studies were performed to identify the effect of the discontinuity on the plate vibration response. The mode shapes and damping ratios of the plates with and without discontinuities in the cross-section were measured and compared. Forced vibration responses and modal properties were predicted using a numerical model. The variation in cross-sectional geometry was modeled to determine the changes in bending stiffness. The translational and rotational viscoelastic stiffnesses at the plate edges were used for modeling the vibration damping at the boundaries. This damping occurred at the contact surface between the plate and the fixtures. To investigate the effect of support stiffness on the vibration damping, flexural wave propagation analysis was performed with different boundary conditions. The ratio between the incident and reflected waves from the boundaries was predicted for flexural waves of different wavelengths. The predicted reflection ratios of the plate with and without the discontinuities were compared to the predicted loss factors using numerical analysis. The vibration energy dissipation at the viscoelastic supports was proportional to the measured modal damping. © 2016 Elsevier Ltd
News Article | November 16, 2015
Korea Times reports that Hyundai will launch a new brand tentatively called AE — which may stand for “alternative energy.” The new brand will debut in January 2016 and will focus on hybrids, plug-in hybrids, fully electric cars, and even a fuel cell vehicle. “The first model of Hyundai’s new green car brand will be a hybrid, followed by plug-in hybrid and battery electric editions, aiming to become the world’s first green car with HEV, PHEV and EV types,” the newspaper said. “Such models are part of our vision, suggesting having 22 green cars in our lineup by 2020,” a Hyundai Motor spokesman says. Hyundai believes that its new hybrid will outperform the Toyota Prius. The five-door hatchback will be equipped with a 1.6-liter Kappa gasoline direct injection engine, an electric motor, and a transmission tailored for hybrid operation. The internal combustion engine boasts 156 horsepower. Total power, with a 9.8 kWh lithium-ion polymer battery and a 50-kilowatt electric motor, is 205 horsepower. Sister company Kia is also about to introduce its own Prius fighter, the DE sedan. Hyundai Motor Group vice chairman Chung Eui-sun said earlier this year that plug-in hybrids are the answer to the future survival of the company and the industry. The company is expected to offer a plug-in hybrid version of its popular Sonata sedan sometime in 2016. Prototypes began testing in September and have received positive reviews for their performance in both EV and hybrid modes. Earlier this year, Hyundai and Kia announced they would be bringing eight new alternative fueled vehicles to market between 2016 and 2018, including four hybrids, two plug-in hybrids, one battery electric vehicle, and one fuel cell vehicle. “Of course it would be more eco-friendly if we could have the full electric vehicles because they emit no greenhouse gas at all. But given the situation that EVs are pricier and generally cannot run a long distance on a single charge, PHEVs are considered the optimal product in the Korean market at the moment,” an industry observers told Korea Times. Hyundai and Kia seem committed to covering all the bases as the automotive market transitions to lower emissions and zero-emissions vehicles. Get CleanTechnica’s 1st (completely free) electric car report → “Electric Cars: What Early Adopters & First Followers Want.” Come attend CleanTechnica’s 1st “Cleantech Revolution Tour” event → in Berlin, Germany, April 9–10. Keep up to date with all the hottest cleantech news by subscribing to our (free) cleantech newsletter, or keep an eye on sector-specific news by getting our (also free) solar energy newsletter, electric vehicle newsletter, or wind energy newsletter.
« Frost & Sullivan forecasts Gasoline Particulate Filters to climb from 50,335 units now to 4.2-4.6 million units by 2020 | Main | Fujitsu launches Singapore field trial of AI-enhanced event-congestion-mitigation system » The Korea Times reports that Korea-based Hyundai Motor will launch its new brand of electric vehicles scheduled for January. The first model of Hyundai’s new car brand—tentatively named “AE”—will be first introduced as a hybrid electric vehicle, followed by PHEV and full-EV editions, according to the report. Hyundai Motor Group vice chairman Chung Eui-sun earlier this year declared the PHEV as the answer to the future survival of the company and the industry. According to the report, the five-door hatchback—intended to compete with the Toyota Prius—will be equipped with a 1.6-liter Kappa gasoline direct injection engine, an electric motor and transmission tailored for the hybrid models. Hyundai expects its new hybrid to outperform the Prius. Hyundai is already introducing a plug-in hybrid version of the Sonata. (Earlier post.) Hyundai’s sister brand Kia Motors is also gearing up to realize a hybrid-only model, the “DE.” “Such models are part of our vision, suggesting having 22 green cars in our lineup by 2020. By far it is going well,” a Hyundai Motor spokesman said.
News Article | April 8, 2016
Hyundai was a late bloomer in the fuel efficiency game, only bringing its Sonata Hybrid to market in 2010, the same year as the third generation of the incumbent Toyota Prius arrived on the scene. Since then, the two paths have diverged, with Toyota running off towards hydrogen fuel cell bliss while Hyundai continues to explore fuel efficiency. Hyundai was not content with just a hybrid drivetrain. Plowing forward towards the future, it developed a new platform with hybrid, plug-in hybrid, and full battery-electric versions of the newly minted Hyundai Ioniq, which it put into the spotlight for the first time at the New York International Auto Show. And Hyundai has no plans to let up this crazy, accelerated rampage of R&D. Auto News recently broke the story of the new Hyundai and sister company Kia masterplan to plow straight on towards the future with plans to introduce 26 hybrids, plug-in hybrids, and fully electric vehicles by 2020. Hyundai and Kia are going all in on this bet to not only lead the charge towards the next generation of automobiles but, critically, in doing so, they plan to head up the race towards reduced emissions, driving reductions in advance of forecasted policy changes. If Hyundai and Kia ever had the opportunity to throw down at a game of Texas hold ’em, this would be the hand where they threw down and went all in because that’s exactly what’s going down. The blitz approach is comprised of 12 hybrids, 6 plug-in hybrids, 2 battery-electric vehicles, and 2 fuel cell electric vehicles split between the two megabrands. With Hyundai already proudly rocking the Sonata Hybrid and Sonata Plugin Hybrids, with rumors of a new electric brand dubbed “AE” being spun off, it’s anyone’s guess where the new models will surface, but it stands to reason that Ioniq is included in the count, having just arrived on the scene. Kia, on the other hand, has been sporting the Soul EV with its 93 miles of all-electric range (AER) for a few months now and has garnered glowing reviews across the board. Kia is also getting in on the plug-in hybrid game, with two completely new versions this year — with the Telluride PHEV and the Optima PHEVs having had their respective covers blown in the early months of the year. The man in charge of the plan to green up the pair is Lee Ki-Sang, Senior Vice President of the Hyundai Motor Group’s Eco Techology Center. He shared that sales of electrified cars account for an anemic 1% of global sales across the two brands. While current sales are terrible, the flip side of that same coin is that there is really only one direction for electrified sales to go — up. In a curious overlap, the strategy for driving volume of electrified vehicle sales (and, more importantly, making them profitable by 2020) has borrowed the Ioniq moniker and is called “Project Ioniq,” as announced at the Geneva Motor Show. The borrowed name also speaks to the intention to share and reapply as much common technology between the two brands and between platforms within the brands as possible. Standardizing the number of new parts that have to be developed to simplify the overall supply chain and manufacturing process is a key philosophy within Project Ioniq. The journey promises to be fraught with challenges as Hyundai and Kia charge into unfamiliar electrified territory, but as with any move into a new business segment, the risk parallels an equal or greater opportunity if they do it right. Getting into the market first isn’t just a GM idea, and now Hyundai & Kia want pieces of the pie … but can they deliver? Time will tell, but if history is any indicator, Hyundai had to move quickly to successfully bring the handful of hybrids and plug-in hybrids to market that are selling like hotcakes today, and that seems to bode well for the future. I know I’ll be watching. Drive an electric car? Complete one of our short surveys for our next electric car report. Keep up to date with all the hottest cleantech news by subscribing to our (free) cleantech newsletter, or keep an eye on sector-specific news by getting our (also free) solar energy newsletter, electric vehicle newsletter, or wind energy newsletter.