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Yasuda, Takashi
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Technique of ECU Circuit Design Management for Automotive Ethernet

NIPPON SOKEN, INC.-Hiroyuki Mori, Miyuki Mizoguchi
Toyota Motor Corp.-Takashi Yasuda, Hideki Goto, Hiroki Keino, Kaoru Yoshida
Published 2017-03-28 by SAE International in United States
In recent years, the demand for high-speed/high-bandwidth communication for in-vehicle networks has been increasing. This is because the usage of high-resolution screens and high-performance rear seat entertainment (RSE) systems is expanding. Additionally, it is also due to the higher number of advanced driver assistance systems (ADAS) and the future introduction of autonomous driving systems. High-volume data such as high definition sensor images or obstacle information is necessary to realize these systems. Consequently, automotive Ethernet, which meets the requirements for high-speed/high-bandwidth communication, is attracting a lot of attention.The application of automotive Ethernet to in-vehicle networks requires that technology developments satisfy EMC performance requirements. In-vehicle EMC requirements consist of two parts: emission and immunity. The emission requirement is to restrict the electromagnetic noise emitted from vehicle. Therefore, automotive PHY transceivers that suppress emission noise have been developed and are available on the market. The immunity requirement is resistance against electromagnetic radiation from inside or outside the vehicle. It is commonly known that immunity performance decreases when the impedance characteristics of the transmission lines are unbalanced. In the…
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Water Cooled Charge Air Cooler Development

DENSO Corporation-Masaki Harada, Takashi Yasuda, Shota Terachi
DENSO International America Inc.-Sergio Pujols, Jason R. Spenny
Published 2016-04-05 by SAE International in United States
Due to the recent trend emphasizing on environmental friendly, engine supercharger downsizing technology has been under development globally. In this report, the technical knowledge for high performance and high quality water-cooled CAC development is provided.For higher cooling performance, the optimum fin and tube core matrix water-cooled CAC, delivering best performance and quality have been developed. For higher reliability against thermal stress, the detail specifications of water-cooled CAC based on the transient analysis and the simulation technology have been established.
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