• セッションNo.66 新しい計測診断技術II(OS)
  • 5月23日 パシフィコ横浜 G316+G317 12:40-14:45
  • 座長:田中 光太郎(茨城大学)
OS企画趣旨
パワートレインをはじめとする自動車工学にかかわる先進的計測診断技術の基礎研究及び技術開発を討議する
企画委員会
計測・診断部門委員会
オーガナイザー
島田 敦史(日立製作所),田中 光太郎(茨城大学),加藤 真亮(SUBARU)
後日配信がない講演は,「配信」の欄に「✕」を表示していますのでご確認ください。
No. 配信 タイトル・著者(所属)
1

Euro 7 OBM and solutions to on-board emissions assessment

Scott Savage・Ian Short (None)

Light-duty Euro7 on-board monitoring (OBM) is mandated from November 2026. Processing of raw emissions and trip data will be performed off-board by the EU to determine in-use emissions performance for vehicle types, guiding targeted ISC and Market Surveillance testing. On-board evaluation of NOx and PM emissions are required at an individual vehicle level. Manufacturers will need to develop strategies to detect when a vehicle may be incapable of passing an ISC test. This paper provides a concise summary of OBM requirements for Euro7 and presents Ricardo's approach to OBM, including solutions to allow on-board emissions compliance evaluation.

2

Analysis of Real Driving Emissions Measurements During Adverse Weather Conditions Using a Laser Spectroscopy Based Portable Emissions Measurement System

Jorge Eduardo Lamas・Kenji Hara・Yoshinori Otsuki (HORIBA)

Real driving emissions measurements are attracting attention to understand emission behavior when vehicles are subject to various environmental conditions which are difficult to replicate in laboratories. The effect of adverse weather conditions on real driving emissions is still not well documented for emission components of recent interest, such as ammonia. A newly developed Portable Emissions Measurement System using laser infrared spectroscopy is utilized to measure and compare emissions of NH3, N2O and NOx, among other components, during on-road tests of a gasoline vehicle in different weather conditions. Vehicle parameters are monitored and their apparent effects on emissions are discussed.

3

Integrated Development of Chassis and Powertrain Systems: Enhancing Vehicle Motion Control through Predictive Dynamics and Virtual Validation

Felix Matthies・Marcus Perner・Wei Han・Mark Wielitzka (IAV)

In modern automotive engineering, developing complex cross-domain functions is crucial for vehicle motion control. Functions managing lateral, longitudinal, and vertical dynamics of subsystems like chassis and powertrain are central. A holistic approach to drive system development is essential to address complexity and enhance safety, comfort, efficiency, and agility. This paper presents IAVs latest concepts, emphasizing virtual methods and functional safety. We highlight using a virtual environment with qualified simulation models for preliminary hazard analysis, risk assessment, and function validation, ensuring high-quality development while reducing costs and time.

4

振動疲労におけるAE波の振動モードを利用した初期損傷検出技術

金城 利晴・前田 崇・池田 聡・佐藤 嘉實(エステック)

振動疲労は繰返し応力や振動により材料が損傷する現象であり航空機や自動車で重要である.AE(Acoustic Emission)計測は微小な亀裂を早期に検出する非破壊評価技術であるが,振動疲労に対しては外乱の影響を受けやすい課題がある.本稿では,試験振動と疲労破壊を切り分けるためにAE波の振動モードに着目した計測手法を提案する.

5

車両のタイヤハウス内に設置可能な偏平型ダイナモメータを用いた車両台上試験への適用評価

鷹崎 悠一・寺田 賢二・近藤 謙太郎・安元 宏平・永徳 航一・北条 善久・小坂井 大輔(東洋電機製造)

車両のタイヤハウス内に設置可能な偏平型ダイナモメータの大容量化を果たした.
本ダイナモメータは車両の機械ブレーキを収納可能な構造であり,1輪あたりの出力は160kW,800-2500min-1であり,短時間最大トルクは3800Nmを発揮する.
本稿では機械ブレーキ試験を含む台上試験への適用評価について報告する.

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