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2021中国汽车工程学会年会暨展览会

作者： Rezaei Reza George Tom B?hme Jan Krause Matthias Leesch Mirko Seebode J?rn iav gmbhdr.2. iav gmbh

The transportation industry has to face major challenges,because of global efforts towards a reduction of greenhouse gases and a general tendency towards *** EU reduction targets for example stipulate an OEM specific fleet CO decrease of 30% by ***,future emission legislation will potentially require measures to achieve ultra-low NO specifications,which will result in a fuel consumption *** this context,multiple technology scenarios ranging from cabin & vehicle design,efficient conventional combustion engines to hydrogen combustion engines and electric powertrain concepts can be expected in the *** total cost of ownership viewpoints and representative fleet composition calculations,iav has derived possible scenarios for a future heavy-duty powertrain configuration:a high efficiency diesel powertrain using mechanical,thermodynamic and thermal management measures in a mid-term,and an advanced engine design for hydrogen combustion and e-fuels in a long-term scenario will be described in detail.

关键词： CO2 targets technology roadmap efficiency phase change cooling waste heat recover hydrogen combustion

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eDRIVE ＆ Fuel Cell System Development for Commercial Vehicles and Mobile Machines

eDRIVE ＆ Fuel Cell System Development for Commercial Vehicl...

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2021中国汽车工程学会年会暨展览会

作者： Hubertus Ulmer Matthias Rothschuh Dennis Backofen Tobias Toepfer Ingo Friedrich Thorsten Schroeder Alexander Roy Ralf Wascheck Florian Brandau iav gmbh

The automotive world is *** commercial vehicle designs will be characterized by systems,integrated in base vehicle topologies and interconnected by software,as well as a significantly increasing commercialization of data and *** levels of interconnection and the integration of various supplier systems result in the need for tailored Systems Engineering methods,knowledge of the supplier landscape for off-the-shelf components,an ISO26262 or ISO13489 compliant soft-and hardware architecture,E/E integration,a digital services portfolio as well as efficient verification ＆ validation *** involves not only a change in technology,but also a change in development *** this context,this paper will present a comprehensive development approach,with focus on system engineering methods for a fuel cell system integration for commercial vehicles.

关键词： systems engineering commercial vehicles development process fuel cell integration eMobility

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Ethernet Cameras for Automotive Applications

Ethernet Cameras for Automotive Applications

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2013中国汽车工程学会年会

作者： Hadj Hamma Tadjine Karsten Schulze iav gmbh

＜正＞The traditional in-car network consists of different network technologies like CAN,FlexRay,and *** of them are just optimized solutions for specific use *** wasn’t seen as a solution to any applications in the *** OEMs fixed on the idea of using the high-speed MOST（Media Oriented Systems Transfer） data bus for in-vehicle cameras and video applications. However,MOST has fallen out of favor in some quarters,partially because of cost-related *** the same time,Ethernet has gained momentum,because it’s a fast,mature technology with high production volumes in the computer *** automakers in China,Korea,and the US who did not already have MOST in their vehicles are highly interested in *** next generation vehicles, many innovative applications could benefit from the increased bandwidth Ethernet can ***,an examination of Ethernet usage for additional in-vehicle communication use cases is *** technology in the car has been gaining momentum *** vehicles now have backup cameras,and many others are going to add cameras to support Advanced Driver Assistance Systems as lane keeping,adaptive cruise control,and collision *** cameras are bit-gobblers,a fast data bus,such as Ethernet,makes sense as a data highway connecting those camera applications. In this paper,different realistic technologies,problems and imitations of promising use cases of Ethernet cameras for ADAS in-car are evaluated and presented.

关键词： Ethernet Cameras QoS TTEthernet Advanced driver assistance systems

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Virtual Development of Hydrogen-powered Commercial Vehicles:Combustion and Exhaust-after-treatment

Virtual Development of Hydrogen-powered Commercial Vehicles:...

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2021中国汽车工程学会年会暨展览会

作者： Rezaei Reza Qing Li Hayduk Christopher David Kovacs Marian Mennig Thaddaeus Delebinski iav gmbh

Hydrogen as a fuel that can be generated from biomass or renewable energies such as sun and wind is considered to be one of the most important energy solutions for reducing CO in the *** model-based development approach is widely used from the early concept phase through to detailed component design and finally in series development and in virtual field *** the concept phase,the use of model-based development can help optimize both the thermodynamics of the engine and the hardware *** virtual development of the hydrogen combustion system,including the charge motion and the port design,as well as the optimization of the air-fuel ratio taking into account the fuel consumption and the exhaust gas after-treatment system(EAT) can be well performed with the model-based *** paper is focussed on hydrogen combustion engines for heavy-duty commercial *** on a roadmap for emission regulation and scenarios for future heavy-duty engines,the requirements for the combustion system and NO reduction are defined and the feasibility of the overall system to achieve the target is *** main advantages of hydrogen combustion are its wide flammability range and very high flame speed compared to other fossil ***,it can be well used for lean burn combustion with much better fuel consumption and very low NO *** potentials and requirements of the overall hydrogen propulsion system will be *** on available measurement data of a 2 L single-cylinder test engine,detailed analysis of the potential using EGR to reduce NO emissions will be ***,abnormal combustion phenomena such as backfire are shown based on an example at a high load operating point is *** the next step,the 1 D engine model is setup and calibrated for hydrogen combustion *** transfer,combustion and emission model are developed and calibrated using single cylinder engine *** engine-out NO traces in

关键词： hydrogen combustion model-based development H2-DeNOx commercial vehicle transient Cycle

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Model-Based Development and OBD Calibration for Heavy-Duty Applications

Model-Based Development and OBD Calibration for Heavy-Duty A...

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2020中国汽车工程学会年会暨展览会

作者： REZAEI R SCHWALBE J WEBER M ALKAN E LOEWEL P BERTRAM C iav gmbh

The latest legislative tendencies for on-highway heavy duty vehicles in the United States such as the feasibility assessment of low NO

关键词： heavy-duty concept development model-based calibration on-board diagnostic calibration virtual field validation china VIb legislation

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iav Advanced Thermal Management ＆ Phase Change Cooling（PCC）

IAV Advanced Thermal Management ＆ Phase Change Cooling（PCC...

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2020中国汽车工程学会年会暨展览会

作者： Arnold Thomas Krause Matthias iav gmbh

With the entry into force of Regulation（EU） 2017/1151,compliance with the limit values for pollutants（CO,HC,NOx） as defined in（EC） 715/2007（EURO6） will become effective on 01.01.2021 for all newly registered passenger cars and light commercial vehicles within the EU binding in the RDE *** valid test drives,the new RDE test procedure only specifies route requirements and ambient temperatures in a relatively wide window in order to cope with the multitude of possible conditions of use in real driving *** means that combustion engines must comply with the emission limit values in all conceivable operating *** gasoline ICE’s use fuel enrichment at high loads to protect the turbocharger and catalytic converter from too high exhaust gas *** evaporation of the additionally injected fuel reduces the exhaust gas temperature but also increases fuel consumption and tailpipe emissions like HC and *** several different technologies as for example integrated exhaust manifolds,water injection,phase change cooled manifolds or high load miller combustion are under investigation to meet the new *** powertrains with high specific engine power are facing limitations in heat rejection of the cooling system what limits the installable cooling power of integrated water-cooled *** injection of water instead of additional fuel is also a promising technology to reduce exhaust gas temperatures without increasing heat rejection demand or increased *** water injection systems require a frequent refilling of water and measures to prevent freezing,fouling or *** a high load miller based combustion process usually leads to an increased charge air cooling demand and adapted compressors to meet the increased charge air pressure that can affect the low-end torque performance or the maximum engine power *** this reason,iav has developed a new phase change cooled exhaust manifold s

关键词： phase change cooling thermal management lambda 1 real driving emissions

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HILOMOT模型在柴油机超大样本试验中的应用研究

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内燃机工程 2017年第4期38卷 128-133页

作者：杜倩颖倪计民陈沁青袁益禧同济大学汽车学院上海201804 iav gmbh公司德国柏林10587

基于某款柴油机动态试验,以经典DMT模型为参照,研究HILOMOT模型超大样本数据拟合能力。研究结果表明:超大样本量时(75 006样本点),针对柴油机排放指标(NO_x、CO、THC及碳烟排放),HILOMOT建模误差平均降低了27.7%(最大降幅为45.6%),数学... 详细信息

基于某款柴油机动态试验,以经典DMT模型为参照,研究HILOMOT模型超大样本数据拟合能力。研究结果表明:超大样本量时(75 006样本点),针对柴油机排放指标(NO_x、CO、THC及碳烟排放),HILOMOT建模误差平均降低了27.7%(最大降幅为45.6%),数学建模质量显著优于DMT模型。因此,在样本点数较多的发动机研究领域,HILOMOT模型具备一定的应用优势。

关键词：内燃机发动机优化动态试验数学建模 HILOMOT模型 DMT模型试验设计

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维普期刊数据库

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加速碳中和的能源载体和动力总成技术

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同济大学学报（自然科学版） 2021年第S01期49卷 202-210页

作者： EL NAKSCHABANDI Mohamad Said INCI Ferhat FINK Anja WIEDEMANN Bernd SENS Marc BRAUER Maximilian VON ESSEN Carsten YUAN Yixi GOTTSCHALK Habil Wolfram KUNSTMANN Jürgen Institute of Land and Sea Transport Technical University Berlin德国柏林10587 Powertrain Systems Development IAV GmbH德国柏林10587 Ice Field Dry Ice Engineering gmbh 德国法兰克福65926

由于“巴黎协定”和中国碳中和的气候保护目标及对能源独立的追求,需要加速对节能减排和二氧化碳中和的技术研究与开发。目前,在汽车动力系统的节能减排与碳中和方面,主要有3种发展概念:电池驱动;燃料电池驱动;基于二氧化碳中和的内燃... 详细信息

由于“巴黎协定”和中国碳中和的气候保护目标及对能源独立的追求,需要加速对节能减排和二氧化碳中和的技术研究与开发。目前,在汽车动力系统的节能减排与碳中和方面,主要有3种发展概念:电池驱动;燃料电池驱动;基于二氧化碳中和的内燃机可持续合成燃料驱动。根据能源使用的生命周期,将效率因素简化归纳为决策因素,在时间上无法反映出减少二氧化碳排放及减少化石能源的需求。与必要的能源供应相比,可再生能源的区域可用性有限,因此须以成本效益优势的方式来解决化石能源大规模替代的技术与基础建设问题。除了直接使用可再生电力外,绿色氢气和衍生的合成燃料可以大大加快化石能源的替代。短期内,合成燃料可以实施到全球的现有车辆上(约12亿辆),并持续增加混合汽油、柴油或天然气的混合比例,直到化石能源完全被绿色的氢气、合成燃料或电力所取代。介绍了氢气动力系统(H2内燃机和燃料电池动力系统)与合成燃料相关的技术解决方案。

关键词：内燃机合成燃料甲醇氢气动力系统

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维普期刊数据库

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