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Hyundai brings brave new tech to 2020 Sonata

Automotive Engineering: January/February 2020

Lindsay Brooke
  • Magazine Article
  • 20AUTP02_13
Published 2020-01-01 by SAE International in United States

Amid a steadily contracting sedan universe, Hyundai has dug in its heels and thoroughly redesigned and engineered its Sonata for 2020. The eighth-generation model sports a shapely (to our eyes) exterior form slightly reminiscent of Audi's A7. It's underpinned by a new platform shared with its 2021 Kia Optima cousin that will serve multiple FWD/AWD passenger cars and crossovers, according to senior U.S. product-planning manager, Mike Evanoff.

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The Selection of Adhesives for the Attachment of Exterior Aftermarket Accessories

Motor Vehicle Council
  • Ground Vehicle Standard
  • J2375_201910
  • Current
Published 2019-10-03 by SAE International in United States
The scope of this SAE Recommended Practice is to provide a mechanism for the proper surface preparation and selection of adhesive for the attachment of exterior aftermarket accessories.
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Calculation Process with Lattice Boltzmann and Finite Element Methods to Choose the Best Exterior Design for Wind Noise

Renault-Guillaume Baudet, Cecile Dutrion, Remi Lorenzi, Felix Gendre, Shanshan Geng
Published 2019-06-05 by SAE International in United States
Wind noise in automobile is becoming more and more important as the customer expectations increase. On the other hand, great progress has been made on engine and road noises, especially for electric and hybrid vehicles. Thus, the wind noise is now by far the major acoustic source during road and motorway driving.As for other noises, automobile manufacturers must be able, for a new car project, to specify, calculate and measure each step of the acoustic cascading:SourceTransfers, both solid and air borneIn the case of the automotive wind noise, the excitation source is the dynamic pressure on the vehicle’s panels. This part of the cascading is the one influenced by the exterior design. Even if many others components (panels, seals, cabin trims) have a big influence, the exterior design is a major issue for the wind noise. The wind noise level in the cabin may change significantly with only a small modification of the exterior design.This paper addresses the problem of doing the good choice of exterior design in the early phases of a new vehicle’…
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Laser Light-Based Technique for Detection and Assessment of Localized Defects in Reflective Automotive Surfaces

Western University-Navraj S. Heer, O. Remus Tutunea-Fatan, Jeffrey T. Wood
Published 2019-04-02 by SAE International in United States
Surface quality plays an important role on aesthetic appeal of any exterior component of a vehicle. As such, smooth and defect-free are some of the critical characteristics of an automotive surface. Numerous manufacturing-related factors such as production environment, substrate material, coating material, handling is known to generate defects to inherently decrease the overall quality of the external surface. Many of these defects tend to be localized while spreading over large areas of the surface. However, the vast majority of available systems are unable to unequivocally quantify surface defects, and, in most cases, the surface quality assessment is performed in a relative and rather qualitative manner. To address this, the main goal of the present study was to develop a new laser light-based technique capable to detect and quantify the localized defects that are present on the surface of reflective components for automotive exteriors. For this purpose, the setup of the proposed prototypical system was validated through a blend of optical simulations and experiments performed on concave and convex defects with determined geometries and with sizes…
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An Objective Measure for Automotive Surface Contamination

SAE International Journal of Passenger Cars - Mechanical Systems

Jaguar Land Rover Ltd.-Adrian Gaylard
Loughborough University-Graham Hodgson, Martin Passmore, Andrew Garmory
  • Journal Article
  • 2018-01-0727
Published 2018-04-03 by SAE International in United States
Surface contamination, or soiling, of the exterior of road vehicles can be unsightly, can reduce visibility and customer satisfaction, and, with the increasing application of surface-mounted sensors, can degrade the performance of advanced driver-assistance systems. Experimental methods of evaluating surface contamination are increasingly used in the product development process, but the results are generally subjective. The use of computational methods for predicting contamination makes objective measures possible, but comparable data from experiment is an important validation requirement.This article describes the development of an objective measure of surface contamination arising during experiments. A series of controlled experiments using ultraviolet (UV) dye-doped water are conducted to develop a robust methodology. This process is then applied to a simplified contamination test. An image of a surface, illuminated by an UV lamp, is captured after every test along with a calibration vessel with known fluid depth. The image is processed to remove the influence of variation in incident illumination. The total mass of contamination deposited is then calculated using the calibration vessel to provide the required local fluid depths.…
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SAE International Journal of Passenger Cars - Mechanical Systems

  • Journal
  • V122-6EJ
Published 2013-05-20 by SAE International in United States

This is the electronic format of the Journal.

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Accelerated Exposure of Automotive Exterior Materials Using a Controlled Irradiance Air-Cooled Xenon-Arc Apparatus

Textile and Flexible Plastics Committee
  • Ground Vehicle Standard
  • J2019_201211
  • Current
Published 2012-11-19 by SAE International in United States
This SAE Standard specifies the operating procedures for a controlled irradiance, air-cooled xenon-arc apparatus used for the accelerated exposure of various automotive exterior materials. The sample preparation, test durations, and performance evaluation procedures are covered in material specifications of the different automotive manufacturers.

LED Wallpack Luminaire

  • Magazine Article
  • TBMG-14371
Published 2010-11-01 by Tech Briefs Media Group in United States

Dialight (Farmingdale, NJ) offers the DuroSite Series LED Wallpack Luminaire. With its low profile and compact design, the powder-coated aluminum wallpack luminaire is fully compliant with all standard ratings and certifications that make it highly suited for stairwells, walkways, building exteriors, subways, and other confined or hard-to-access spaces. The luminaire features instant on/off operation, enabling greater operating efficiency and an extended lifespan of over 10 years. Rated for input voltage of 100-277 VAC, the fixture is available in 11-watt and 22- watt versions and is free of hazardous materials. The DuroSite Wallpack fixture is designed for ceiling or standard 30-degree wall mounting brackets.

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Development of a Film-decorated Front Grille

Honda Research and Development Co., Ltd.-Hitoshi Ohgane
Published 2008-04-14 by SAE International in United States
Two decorative films were developed for the front grille of vehicles. The first is an insert molded film that expresses the texture of aluminum. The typical problem of brightness loss due to elongation during molding is improved from both material and method perspectives by using this film. The other film is an embossed type formed by using the vacuum forming method. A matte design with a satin finish is achieved by embossing the embossments on carrier film on a clear layer surface. These films have excellent scratch resistance during car washes compared to conventional exterior decorative films, and they satisfy all coating quality requirements of automotive exteriors. These decorative film technologies were used on the new TSX.
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Newly Developed Automotive Glass Protection Film

Nitto Denko Corporation-Yuki Saitou, Kenichi Shibata, Shinsuke Ikishima
Permacel-Hanna Kushioka
Published 2006-04-03 by SAE International in United States
Various environmental impacts negatively effect for the exteriors of newly manufactured vehicles. Among them, automotive window glass is a particularly vulnerable material. Small gravels that fly with strong wind of storms or hurricanes leaves damages on the glass that cannot be repaired, thus entire replacement is often necessary. It is a major economical threat for the automotive manufactures and dealers. Further more, replacement of the car window glass after shipment may be a concern for the perfection of water sealing. Accordingly, various protection measures were studied to protect car window glass during storage and transportation of automotives vehicles and trucks. However, none of them seem to give a comprehensive solution. Nitto Denko has thus developed a new adhesive film, which can effectively protect automotive window glass during transportation based on its high expertise in adhesive technology. In order to give a minimal environmental impact, the product uses a polyolefin material, which can be incinerated. In this paper, we will discuss required properties for this application, and then performance of the newly developed adhesive film.
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