VIBRATION, NOISE AND RIDE QUALITY
|
|
- Virginia Turner
- 5 years ago
- Views:
Transcription
1 VIBRATION, NOISE AND RIDE QUALITY 1 Introduction 2 Road Traffic Noise
2
3 Degree of throttle openness New Result Full-throttle acceleration under current test method New test method Moderate acceleration equivalent (Calculated from full-throttle acceleration and constant speed) Engine speed (rpm) High speed A-weighted sound pressure level db Current Result WOT ICEV1 ICEV2 HEV EV mode Background Noise Vehicle speed km/h Fig. 3 Difference in Noise Levels between Gasoline-engine Vehicles and HEV Electric Running Actual driving conditions in urban areas Fig. 2 Driving Conditions under both New and Old Test methods electricity requires drawing air into the fuel cell stack, and possible countermeasures to the unique noise issue recognition by pedestrians. When the R138 technical re- associated with this intake and discharge of air have quirements were discussed, the Japanese automobile been published (Fig. 4)(1). In HEVs, the unpleasant vibra- manufacturers who first commercialized vehicle ap- tions when the engine was started have already been proach alerting devices and the ministry that first estab- improved to the point of going unnoticed, and efforts lished the guidelines collaborated in leading the UN rule- have moved on to examining whether the number of cyl- making process as well as the creation of the ISO inders in the engine can be reduced to achieve even standard for the testing method. In the U.S. as well, the greater fuel efficiency. In older HEVs the combustion Pedestrian Safety Enhancement Act of 2010 was passed force of the engine generates vibrations when it was by Congress and signed into law in January started. However, in newer engines with a smaller num- Other future issues concerning vehicle noise regula- ber of cylinders, it is the vibration prior to combustion tions currently being discussed within the GRB include: that has become a problem, and reports on the mecha- improving the Additional Sound Emission Provisions nism causing these vibrations and possible countermea- (ASEP) testing methods added to R51-03, noise regula- sures have been published (Fig. 5)(2). The demand for fur- tions for in use vehicles, and developing different road ther improved fuel efficiency also remains strong for surface classifications to address the eventual wide- internal combustion engine (ICE) vehicles, and progress spread use of low-noise road surfaces. As a result, there on measures such as further lowering the lock-up speed are strong expectations for even further reductions in of the CVT and reducing friction continues to be made. road traffic noise. However, such measures have resulted in other unpleas- 3 Noise and Vibration of Vehicle Components ant phenomena, including a worsening of booming noise and self-excited vibrations from the clutch, and factor analysis and simulation technologies to find countermea Powertrains sures are being developed(3)(4). Since the technologies that New vehicle vibration and noise technologies to ad- improve the fuel efficiency of ICE vehicles and HEVs dress fuel efficiency and environmental friendliness re- also strongly affect vibration and noise characteristics, main essential. At the same time, the search for new pos- the development of new vibration and noise technologies sibilities in automobiles is driving the examination of new that address fuel efficiency is expected to continue in the ideas for powertrains. future. As HEVs and EVs grow in popularity, automobile Reports on vehicles equipped with in-wheel motors manufacturers have launched FCVs, which use fuel cells (IWM) as the possible new form of next-generation pow- as their source of energy. FCVs share many vibration ertrain packaging have also been issued. IWM systems and noise issues with HEVs and EVs, but there are also place an electric motor within the wheel itself, resulting FCV- specific vibration and noise phenomena. Generating in constraints on design and vehicle packaging that differ Copyright 2016 Society of Automotive Engineers of Japan, Inc. All rights reserved
4
5
6 Pa 70 SPL db A 60 Experiment Prediction Hz 200 Hz 315 Hz 400 Hz 613 Hz 800 Hz Hz Hz /3 Octave Band Frequency Hz Fig. 8 Comparison of Wind Noise Prediction Analysis Results with Experimental Results 21 optimal structure of air conditioning devices since they generate noise in the vehicle interior. Nevertheless, it is still not easy to accurately calculate the wind noise for the entire vehicle system over the entire frequency range from low to high when the vehicle Hz is traveling at high speed. At the research level, projects such as this using the K supercomputer have been making progress and it was reported that good accuracy has Fig. 9 Wind Noise Prediction Model 22 (21)(22) been obtained (Fig. 8) (Fig. 9). At the locations where actual wind noise research is being carried out, the reali- issue. The use of a wave-number filter and of methods ty is that a variety of different techniques are being de- that do not separate the sound and sound-like effects ployed depending on the different standpoints and pur- have both been reported, but it is expected that some poses of the research. new theoretical basis will have to be established in the Another issue confronting researchers as they pursue future. a better understanding and more precise analysis of the Obviously, this field of vehicle wind noise requires ex- mechanism of wind noise is the fact that the technologies pertise in both fluid dynamics and vibration noise, but as in this field straddle the line between fluid dynamics and mentioned previously, there are almost no engineers who vibration noise. At the current time, the theoretical sys- currently possess the necessary expertise in both these tem attempting to integrate these two areas is insuffi- areas. Consequently, it is thought that another challenge cient and very few researchers and engineers are equal- to solving this issue in the future will be the need to re- ly well-versed in both of these fields. From the standpoint form the educational system at universities and the of vibration noise engineers, the size and distribution of training methods for engineers at companies. vibration sources caused by air flow are important, but In recent years, there have also been reports on re- in the world of fluid dynamics the vibration sources are search into the unconventional characteristics of new often separated into sound and sound-like effects (pres- materials used in automobiles. These include the move sure fluctuations that do not become sound) for reasons away from the conventional sound insulation materials of computational efficiency and the analysis techniques made from fibers and urethane to the construction of being used. This poses no problem when all vibration acoustic circuits composed of a large number of fine sources and the whole transmission response system are structures, or even the periodic placement of materials in a uniform piece of air. However, in the case of vehicle with different acoustic impedances(23)(24). It is expected wind noise, the transmission system includes vibrations that in the near future materials such as these will be passing through the glass and steel sheet of the vehicle applied to actual products thanks to innovations in manu- body, so identifying the proper theory and methods facturing technologies such as 3D printing. needed to separate the vibration sources has become an Copyright 2016 Society of Automotive Engineers of Japan, Inc. All rights reserved
7 4 Sound Quality
8
Motorcycles. erall Trends. 1 Introduction. 2 Production and Demand
Motorcycles erall Trends 1 Introduction 2 Production and Demand 3 Design Trends 4 Product and Technological Trends Table 1 Details of main new motorcycles launched in 2013. Table 1 Details of main new
More informationVIBRATION, NOISE AND RIDE QUALITY
VIBRATION, NOISE AND RIDE QUALITY 1 Introduction Global warming and other environmental issues are being further emphasized on a global scale and, in the contextofrealizingamoresustainablesociety,reducing
More informationDynamic Behavior Analysis of Hydraulic Power Steering Systems
Dynamic Behavior Analysis of Hydraulic Power Steering Systems Y. TOKUMOTO * *Research & Development Center, Control Devices Development Department Research regarding dynamic modeling of hydraulic power
More informationDevelopment of Noise-reducing Wheel
Introduction of new technologies Development of Noise-reducing Wheel Development of Noise-reducing Wheel Youichi KAMIYAMA* Hisamitsu TAKAGI* Katsushi ISHII* Mikio KASHIWAI** ABSTRACT Tire cavity noise
More informationExperimental NVH evaluation of a pure electric vehicle in transient operation modes
Experimental NVH evaluation of a pure electric vehicle in transient operation modes Rong Guo 1, Xiao-kang Wei 2, Jun Gao 3 Clean Energy Automotive Engineering Center, Tongji University, Shanghai, People
More informationVehicle Turn Simulation Using FE Tire model
3. LS-DYNA Anwenderforum, Bamberg 2004 Automotive / Crash Vehicle Turn Simulation Using FE Tire model T. Fukushima, H. Shimonishi Nissan Motor Co., LTD, Natushima-cho 1, Yokosuka, Japan M. Shiraishi SRI
More informationThe trend of noise regulation in Japan
Transmitted by the expert from Japan Informal document GRB-62-13-Rev.1 (62nd GRB, 1-3 September 2015, agenda item 9) The trend of noise regulation in Japan Ministry of Land, Infrastructure, Transport and
More informationINVENTION DISCLOSURE MECHANICAL SUBJECT MATTER EFFICIENCY ENHANCEMENT OF A NEW TWO-MOTOR HYBRID SYSTEM
INVENTION DISCLOSURE MECHANICAL SUBJECT MATTER EFFICIENCY ENHANCEMENT OF A NEW TWO-MOTOR HYBRID SYSTEM ABSTRACT: A new two-motor hybrid system is developed to maximize powertrain efficiency. Efficiency
More informationNew Engines Aiming for 60% Thermal Efficiency Japanese Automobile Manufacturers Rising to the Post-HEV Challenge
New Engines Aiming for 60% Thermal Efficiency Japanese Automobile Manufacturers Rising to the Post-HEV Challenge Yoshiro Tsuruhara Nikkei Automotive Technology Abstract: Internal combustion engines have
More informationRoad vehicle noise reduction by low noise road surfaces in Japan
Road vehicle noise reduction by low noise road surfaces in Japan 1 Integrated noise reduction measures Road vehicle running noise Road vehicle Tyre Pavement Traffic management Integrated Measures Road
More informationBall Screw Unit for Automotive Electro-actuation
New Product Ball Screw Unit for Automotive Electro-actuation Koji TATEISHI In the automotive market, numerous new hybrid cars and engines with low fuel consumption and low emissions have been developed
More informationFig.1 Sky-hook damper
1. Introduction To improve the ride comfort of the Maglev train, control techniques are important. Three control techniques were introduced into the Yamanashi Maglev Test Line vehicle. One method uses
More informationJapanese position to the proposals from TU-G and TU Wien
Working Paper No. HDH-09-12 (9th HDH meeting, 21 to 23 March 2012) Japanese position to the proposals from TU-G and TU Wien 9 th HDH Informal meeting, 21-23 March, 2012 JASIC Japanese position to the proposals
More informationSilencers. Transmission and Insertion Loss
Silencers Practical silencers are complex devices, which operate reducing pressure oscillations before they reach the atmosphere, producing the minimum possible loss of engine performance. However they
More informationDevelopment of Variable Geometry Turbocharger Contributes to Improvement of Gasoline Engine Fuel Economy
Development of Variable Geometry Turbocharger Contributes to Improvement of Gasoline Engine Fuel Economy 30 MOTOKI EBISU *1 YOSUKE DANMOTO *1 YOJI AKIYAMA *2 HIROYUKI ARIMIZU *3 KEIGO SAKAMOTO *4 Every
More informationVibration, Noise and Ride Quality
Vibration, Noise and Ride Quality 1 Introduction Global warming is advancing and environmental problems are growing increasingly serious on a worldwide scale. Consequently, improving environmental technologies
More informationH 2 : Our path to a sustainable society
H 2 : Our path to a sustainable society Presentation Jacques Pieraerts Vice President, Communication, External & Environmental Affairs Group Toyota Motor Europe November 19th, 2015 Background of the Challenge
More informationToyota s View on the Future Powertrain
11th A3PS Conference 1 Thiebault PAQUET Toyota Motor Europe Contents 2 1. Toyota 2050 Environmental Challenge 2. Mid Term: Enhanced Environmental Performance of Conventional, HV and Plug-In HV Powertrains.
More informationRevision of ASEP Considerations for Future Steps Enhancement of the presentation from Germany
13 February 2017 P R E S E N T A T I O N O F INTERNATIONAL ORGANIZATION OF MOTOR VEHICLE MANUFACTURERS Revision of ASEP Considerations for Future Steps Enhancement of the presentation from Germany Link
More informationTRUCKS. erall Trends. 1 Introduction. 2 Recent Truck Market Trends
TRUCKS erall Trends 1 Introduction 2 Recent Truck Market Trends 3 2015 Model Year Trucks and Special Characteristics Fig. 18 Suzuki Carry 5 Fig. 20 Hino New 500 series 5 Fig. 19 UD Trucks Quester 5 with
More informationIntroduction to vehicle NVH and Acoustics
Introduction to vehicle NVH and Acoustics Realize innovation. Agenda Introduction to NVH Powertrain NVH analysis Interior vehicle NVH Exterior acoustics Conclusion Page 2 What is NVH? Noise Audible disturbance
More informationEstablishment of Joint Venture with PSA for EV Traction Motor Business
NIDEC CORPORATION Establishment of Joint Venture with PSA for EV Traction Motor Business Nidec Corporation December 4 th, 2017 Note Regarding Forward-looking Statements These presentation materials and
More informationEfficiency Enhancement of a New Two-Motor Hybrid System
World Electric Vehicle Journal Vol. 6 - ISSN 2032-6653 - 2013 WEVA Page Page 0325 EVS27 Barcelona, Spain, November 17-20, 2013 Efficiency Enhancement of a New Two-Motor Hybrid System Naritomo Higuchi,
More informationISO INTERNATIONAL STANDARD. Measurement of noise emitted by accelerating road vehicles Engineering method Part 2: L category
INTERNATIONAL STANDARD ISO 362-2 First edition 2009-07-15 Measurement of noise emitted by accelerating road vehicles Engineering method Part 2: L category Mesurage du bruit émis par les véhicules routiers
More informationEffect of road surfaces on road traffic noise on the public roads of Japan. --An investigation based on tyre/road noise measurement--
Effect of road surfaces on road traffic noise on the public roads of Japan --An investigation based on tyre/road noise measurement-- Hiroshi Koike 1 ; Akiyoshi Ito 2 1,2 Japan Automobile Research Institute,
More informationDrivetrain. 1 Introduction. 3 Automatic Transmission (AT) Trends. 2 Manual Transmission (MT) Trends
Drivetrain 1 Introduction Facing growing demands to help address environmental concerns, automakers are researching, developing, and launching a wide range of drivetrains for gasoline, diesel, hybrid,
More informationEnvironmentally Friendly Vehicle Noise. 9 th Informal Group Meeting on Environmentally Friendly Vehicle (EFV) - Noise
Environmentally Friendly Vehicle Noise 1 Overview Purpose & Method Of Evaluation Interior noise of the vehicle? Methods to present the pass-by data Tyre/Road contribution Quiet vehicles. 2 Background Informal
More informationU.S. Fuel Economy and Fuels Regulations and Outlook
U.S. Fuel Economy and Fuels Regulations and Outlook An Industry Perspective Mike Hartrick Fuels2018 May 23, 2018 Topics Market Perspective Regulatory Perspective What Could Changes in Fuel Economy Regulations
More informationSteering Actuator for Autonomous Driving and Platooning *1
TECHNICAL PAPER Steering Actuator for Autonomous Driving and Platooning *1 A. ISHIHARA Y. KUROUMARU M. NAKA The New Energy and Industrial Technology Development Organization (NEDO) is running a "Development
More informationTechnological Innovation, Environmentally Sustainable Transport, Travel Demand, Scenario Analysis, CO 2
S-3-5 Long-term CO 2 reduction strategy of transport sector in view of technological innovation and travel demand change Abstract of the Interim Report Contact person Yuichi Moriguchi Director, Research
More informationModeling the Lithium-Ion Battery
Modeling the Lithium-Ion Battery Dr. Andreas Nyman, Intertek Semko Dr. Henrik Ekström, Comsol The term lithium-ion battery refers to an entire family of battery chemistries. The common properties of these
More informationAddressing performance balancing in fuel economy driven vehicle programs
EAEC-ESFA 2015 Presenter: Dr. Filip Deblauwe Addressing performance balancing in fuel economy driven vehicle programs Smarter decisions, better products. Introduction Performance balancing Application
More informationISO INTERNATIONAL STANDARD. Measurement of noise emitted by accelerating road vehicles Engineering method Part 2: L category
INTERNATIONAL STANDARD ISO 362-2 First edition 2009-07-15 Measurement of noise emitted by accelerating road vehicles Engineering method Part 2: L category Mesurage du bruit émis par les véhicules routiers
More informationSONIC PROPULSION SYSTEM, AN OVERALL VIEW OF POSSIBLE SOLUTIONS
SONIC PROPULSION SYSTEM, AN OVERALL VIEW OF POSSIBLE SOLUTIONS Horia Abaitancei *, Dan Abaitancei, Gheorghe-Alexandru Radu, Sebastian Radu, Mihaela Coldea, Alexandru Lupa Transilvania University of Brasov
More informationPerformance Analysis of Green Car using Virtual Integrated Development Environment
Performance Analysis of Green Car using Virtual Integrated Development Environment Nak-Tak Jeong, Su-Bin Choi, Choong-Min Jeong, Chao Ma, Jinhyun Park, Sung-Ho Hwang, Hyunsoo Kim and Myung-Won Suh Abstract
More informationRegulations Worldwide on Minimum Sound Emission of Quiet Vehicles
May 2018 P R E S E N T A T I O N O F INTERNATIONAL ORGANIZATION OF MOTOR VEHICLE MANUFACTURERS Regulations Worldwide on Minimum Emission of Quiet Vehicles UN-ECE GRB GTR Working Group QRTV May 2018 - Baltimore
More informationApril 16, 2014 Suzuki Motor Corporation. Models in this presentation are for the Japanese domestic market, unless otherwise mentioned.
April 16, 2014 Suzuki Motor Corporation Models in this presentation are for the Japanese domestic market, unless otherwise mentioned. Product Development Policy Top-Class Environmental Performance Affordable
More informationTHE FUTURE DIRECTION OF THE ELECTRIFIED VEHICLE UTILIZING OF BIG DATA
MOTOR & UMWELT 218 ENGINE & ENVIRONMENT 218 THE FUTURE DIRECTION OF THE ELECTRIFIED VEHICLE UTILIZING OF BIG DATA Shizuo Abe Toyota Motor Corporation 3 th International AVL Conference Engine & Environment,
More informationOptimizing Battery Accuracy for EVs and HEVs
Optimizing Battery Accuracy for EVs and HEVs Introduction Automotive battery management system (BMS) technology has advanced considerably over the last decade. Today, several multi-cell balancing (MCB)
More information--> Buy True-PDF --> Auto-delivered in 0~10 minutes. QC/T Translated English of Chinese Standard: QC/T
Translated English of Chinese Standard: QC/T970- www.chinesestandard.net Buy True-PDF Auto-delivery. Sales@ChineseStandard.net AUTOMOTIVE INDUSTRY STANDARD QC OF THE PEOPLE S REPUBLIC OF CHINA ICS 43.060.20
More informationMarc ZELLAT, Driss ABOURI, Thierry CONTE and Riyad HECHAICHI CD-adapco
16 th International Multidimensional Engine User s Meeting at the SAE Congress 2006,April,06,2006 Detroit, MI RECENT ADVANCES IN SI ENGINE MODELING: A NEW MODEL FOR SPARK AND KNOCK USING A DETAILED CHEMISTRY
More informationMing Cheng, Bo Chen, Michigan Technological University
THE MODEL INTEGRATION AND HARDWARE-IN-THE-LOOP (HIL) SIMULATION DESIGN FOR THE ANALYSIS OF A POWER-SPLIT HYBRID ELECTRIC VEHICLE WITH ELECTROCHEMICAL BATTERY MODEL Ming Cheng, Bo Chen, Michigan Technological
More informationASEP Development Strategy for ASEP Revision 2 Development of a Physical Expectation Model Based on UN R51.03 Annex 3 Performance Parameters
July 2017 P R E S E N T A T I O N O F INTERNATIONAL ORGANIZATION OF MOTOR VEHICLE MANUFACTURERS ASEP Development Strategy for ASEP Revision 2 Development of a Physical Expectation Model Based on UN R51.03
More informationTransmission Technology contribution to CO 2 roadmap a benchmark
Transmission Technology contribution to CO 2 roadmap a benchmark Martin Bahne Director Attribute System Engineering Ulrich Frey Technical specialist Agenda Introduction Transmission Technology Benchmark
More informationEnergy Demand & World Oil Production : Forecast. World Oil Production by Source
2 Energy Demand & World Oil Production : Forecast Energy Demand in Each Sector 1 World Oil Production by Source 8 Energy Demand (Mtoe) 15 1 5 Non-energy Use Other Sectors Transportation Industry Power
More informationReport of 3rd meeting of QRTV informal group
Report of 3rd meeting of QRTV informal group (Focusing on 1 st day: Tuesday, July 13 2010 at MEGAWEB) Opening Welcome and Opening Remarks by Mr. Shima, Director, Engineering Planning Division, Ministry
More informationQuiet Challenges for Vehicle Safety
Page 1 Quiet Cars@BMW. Challenges for Vehicle Safety and Acoustics. Alfred Zeitler, Robert Liebing, Armin Gräter & Jan Urbahn Research & Innovation Center, Munich BMW of North America, LLC Page 2 Introduction.
More informationNew Powertrain Units Based on TNGA
1 New Powertrain Units Based on TNGA February 26, 2018 Mitsumasa Yamagata Chief Engineer, Powertrain Product Planning Division Toyota Motor Corporation Contents 2 New Powertrain Units Based on TNGA 1.
More informationAnalysis of Fuel Economy and Battery Life depending on the Types of HEV using Dynamic Programming
World Electric Vehicle Journal Vol. 6 - ISSN 2032-6653 - 2013 WEVA Page Page 0320 EVS27 Barcelona, Spain, November 17-20, 2013 Analysis of Fuel Economy and Battery Life depending on the Types of HEV using
More informationRoad Vehicle noise Regulations and standardization Impacts and Stakes
GdR 13 et 14 novembre 2012 Road Vehicle noise Regulations and standardization Impacts and Stakes Presented by Louis-Ferdinand PARDO 1 Working groups For automotive standardization : ISO / TC43 / SC1 /
More informationDIESEL ENGINES. 1 Introduction. 2 Engine Trends in Japan
DIESEL ENGINES 1 Introduction 2 Engine Trends in Japan Table 1 Specifications of new engines launched in Japan in 2015. Application Manufacturers Passenger Toyota vehicle Commercial vehicles Engine model
More informationVehicle Performance. Pierre Duysinx. Research Center in Sustainable Automotive Technologies of University of Liege Academic Year
Vehicle Performance Pierre Duysinx Research Center in Sustainable Automotive Technologies of University of Liege Academic Year 2015-2016 1 Lesson 4: Fuel consumption and emissions 2 Outline FUEL CONSUMPTION
More informationRemarkable CO 2 Reduction of the Fixed Point Fishing Plug-in Hybrid Boat
Journal of Asian Electric Vehicles, Volume 13, Number 1, June 215 Remarkable CO 2 Reduction of the Fixed Point Fishing Plug-in Hybrid Boat Shigeyuki Minami 1, Kazusumi Tsukuda 2, Kazuto Koizumi 3, and
More informationComponents and Systems for Electric Vehicles (HEVs/EVs)
Environmentally Compatible Technologies for a Car Society that Coexists with the Earth Components and Systems for Electric Vehicles (HEVs/EVs) Fuel efficiency improvements, compliance with emission regulations,
More informationAlternative Powertrain and Challenges for Next Decade
Alternative Powertrain and Challenges for Next Decade Prof. Dr. Willi Diez Director Institute for Automotive Research at the University of Applied Sciences Nuertingen (Germany) SIAM Annual Convention 2011
More informationElectric vehicle Jobs and New Occupations (2019)
Electric vehicle Jobs and New Occupations (2019) T he electric vehicle industry could be revving up. And if industry growth accelerates, so will job creation in related occupations. Many occupations related
More informationDevelopment of Motor-Assisted Hybrid Traction System
Development of -Assisted Hybrid Traction System 1 H. IHARA, H. KAKINUMA, I. SATO, T. INABA, K. ANADA, 2 M. MORIMOTO, Tetsuya ODA, S. KOBAYASHI, T. ONO, R. KARASAWA Hokkaido Railway Company, Sapporo, Japan
More informationCOMPRESSIBLE FLOW ANALYSIS IN A CLUTCH PISTON CHAMBER
COMPRESSIBLE FLOW ANALYSIS IN A CLUTCH PISTON CHAMBER Masaru SHIMADA*, Hideharu YAMAMOTO* * Hardware System Development Department, R&D Division JATCO Ltd 7-1, Imaizumi, Fuji City, Shizuoka, 417-8585 Japan
More informationChassis, Control Systems and Equipment
Chassis, Control Systems and Equipment Manabu Yamamoto 1) Masayuki Hashiguchi 1) Shinji Nakagawa 1) 1 Introduction 2 Suspension Table 1 Chassis and vehicle control systems of new vehicles launched in 2012
More informationACOUSTIC NOISE AND VIBRATIONS OF ELECTRIC POWERTRAINS
ACOUSTIC NOISE AND VIBRATIONS OF ELECTRIC POWERTRAINS Focus on electromagnetically-excited NVH for automotive applications and EV/HEV Part 3 Review of electrical systems in electric powertrains and specificities
More informationELECTRIC BICYCLE A Green Alternative to Urban Commuting
ELECTRIC BICYCLE A Green Alternative to Urban Commuting An electric bicycle, also known as an e-bike or booster bike, is a bicycle with an integrated electric motor which can be used for propulsion. E-bikes
More informationNext-generation Inverter Technology for Environmentally Conscious Vehicles
Hitachi Review Vol. 61 (2012), No. 6 254 Next-generation Inverter Technology for Environmentally Conscious Vehicles Kinya Nakatsu Hideyo Suzuki Atsuo Nishihara Koji Sasaki OVERVIEW: Realizing a sustainable
More informationAn Optimization of Rubber Mounting for Vehicle Interior Noise Reduction
An Optimization of Rubber Mounting for Vehicle Interior Noise Reduction N. TSUJIUCHI, T. KOIZUMI, and T. TAKENAKA T. IWAGASE Department of Mechanical Engineering Doshisha University Kyotanabe, Kyoto 610-0321
More informationSILENT SUPERSONIC TECHNOLOGY DEMONSTRATION PROGRAM
25 TH INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES SILENT SUPERSONIC TECHNOLOGY DEMONSTRATION PROGRAM Akira Murakami* *Japan Aerospace Exploration Agency Keywords: Supersonic, Flight experiment,
More informationRehabilitated PCC Surface Characteristics
Rehabilitated PCC Surface Characteristics Dr. W. James Wilde, P.E. Professor, Minnesota State University Director, Center for Transportation Research and Implementation Mankato, Minnesota Mr. Elliott Dick
More informationHybrid Wheel Loaders Incorporating Power Electronics
Hitachi Review Vol. 64 (2015), No. 7 398 Featured Articles Hybrid Wheel Loaders Incorporating Power Electronics Kazuo Ishida Masaki Higurashi OVERVIEW: Hybrid vehicles that combine an engine and electric
More informationHYBRID VEHICLES, ELECTRIC VEHICLES, FUEL CELL ELECTRIC VEHICLES. 1 Hybrid Vehicles
HYBRID VEHICLES, ELECTRIC VEHICLES, FUEL CELL ELECTRIC VEHICLES 1 Hybrid Vehicles Table 1 Main Hybrid Electric Vehicles Launched in Japan in 2015 Table 1 Main Hybrid Electric Vehicles Launched in Japan
More informationPwC Autofacts. The Transformation of the Automotive Value Chain.
www.pwc.de The Transformation of the Automotive Value Chain Research results on how the automotive transformation will impact value add October 18 DON T PANIC: The automotive transformation will bring
More informationInfluence of unexpected engine start sound of hybrid vehicle in cabin -Comparison between Japanese and German drivers-
Influence of unexpected engine start sound of hybrid vehicle in cabin -Comparison between Japanese and German drivers- Toru Ueno a) Junji Yoshida b) Department of Mechanical Engineering, Osaka Institute
More informationCSR Report Environmental Performance
CSR Report 2014 Environmental Performance Since selling the world s first buses equipped with a hybrid system in 1991, Hino Motors has consistently taken the lead in the industry as a pioneer of environmental
More informationUniversity of L Aquila. Permanent Magnet-assisted Synchronous Reluctance Motors for Electric Vehicle applications
University of L Aquila Department of Industrial and Information Engineering and Economics Permanent Magnet-assisted Synchronous Reluctance Motors for Electric Vehicle applications A. Ometto, F. Parasiliti,
More informationA new battery generation for the next car generation
A new battery generation for the next car generation THE POWER TO INNOVATE SUPPORTING RESEARCH TO CREATE THE MOST INNOVATIVE PRODUCT TECHNOLOGIES A recognized leader in the production and recycling of
More informationDevelopment of Higher-voltage Direct Current Power Feeding System for ICT Equipment
: NTT Group R&D for Reducing Environmental Load Development of Higher-voltage Direct Current Power Feeding System for ICT Equipment Yousuke Nozaki Abstract This article describes the development of a higher-voltage
More informationLEGAL STATEMENT 1 / 2018 NAVIGANT CONSULTING, INC. ALL RIGHTS RESERVED
LEGAL STATEMENT The purpose of the information in this presentation is to guide ICA programs and provide members with information to make independent business decisions. 1 ANTITRUST GUIDELINES Antitrust
More informationDevelopment of a Clutch Control System for a Hybrid Electric Vehicle with One Motor and Two Clutches
Development of a Clutch Control System for a Hybrid Electric Vehicle with One Motor and Two Clutches Kazutaka Adachi*, Hiroyuki Ashizawa**, Sachiyo Nomura***, Yoshimasa Ochi**** *Nissan Motor Co., Ltd.,
More informationAutomotive Research and Consultancy WHITE PAPER
Automotive Research and Consultancy WHITE PAPER e-mobility Revolution With ARC CVTh Automotive Research and Consultancy Page 2 of 16 TABLE OF CONTENTS Introduction 5 Hybrid Vehicle Market Overview 6 Brief
More informationOPTIMAL POWER MANAGEMENT OF HYDROGEN FUEL CELL VEHICLES
OPTIMAL POWER MANAGEMENT OF HYDROGEN FUEL CELL VEHICLES Giuliano Premier Sustainable Environment Research Centre (SERC) Renewable Hydrogen Research & Demonstration Centre University of Glamorgan Baglan
More informationResearch on Skid Control of Small Electric Vehicle (Effect of Velocity Prediction by Observer System)
Proc. Schl. Eng. Tokai Univ., Ser. E (17) 15-1 Proc. Schl. Eng. Tokai Univ., Ser. E (17) - Research on Skid Control of Small Electric Vehicle (Effect of Prediction by Observer System) by Sean RITHY *1
More informationinter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering August 2000, Nice, FRANCE
Copyright SFA - InterNoise 2000 1 inter.noise 2000 The 29th International Congress and Exhibition on Noise Control Engineering 27-30 August 2000, Nice, FRANCE I-INCE Classification: 7.6 ROLLING NOISE FROM
More informatione t Performance of Extended Inlet and Extended Outlet Tube on Single Expansion Chamber for Noise Reduction
e t International Journal on Emerging Technologies 7(1): 37-41(2016) ISSN No. (Print) : 0975-8364 ISSN No. (Online) : 2249-3255 Performance of Extended Inlet and Extended Outlet Tube on Single Expansion
More informationSteel solutions in the green economy FutureSteelVehicle
Steel solutions in the green economy FutureSteelVehicle CONTENTS introduction Introduction 3 FutureSteelVehicle characteristics 6 Life cycle thinking 10 The World Steel Association (worldsteel) is one
More informationUnited States Patent (19)
United States Patent (19) Fujita 11 Patent Number: (45) Date of Patent: 4,727,957 Mar. 1, 1988 (54) RUBBER VIBRATION ISOLATOR FOR MUFFLER 75 Inventor: Akio Fujita, Fujisawa, Japan 73) Assignee: Bridgestone
More informationReduction of vehicle noise at lower speeds due to a porous open-graded asphalt pavement
Reduction of vehicle noise at lower speeds due to a porous open-graded asphalt pavement Paul Donavan 1 1 Illingworth & Rodkin, Inc., USA ABSTRACT Vehicle noise measurements were made on an arterial roadway
More informationNew Direct Fuel Injection Engine Control Systems for Meeting Future Fuel Economy Requirements and Emission Standards
Hitachi Review Vol. 53 (2004), No. 4 193 New Direct Fuel Injection Engine Control Systems for Meeting Future Fuel Economy Requirements and Emission Standards Minoru Osuga Yoshiyuki Tanabe Shinya Igarashi
More informationNUMERICAL STUDY OF TRANSFER FUNCTION OF COM- BUSTION NOISE ON A HEAVY DUTY DIESEL ENGINE
NUMERICAL STUDY OF TRANSFER FUNCTION OF COM- BUSTION NOISE ON A HEAVY DUTY DIESEL ENGINE Ibrahim Ciylez Ford OTOSAN A.Ş., Sancaktepe, Istanbul, Turkey email: iciylez@ford.com.tr Haluk Erol Istanbul Technical
More informationInfraday: The Future of E-Mobility
Infraday: The Future of E-Mobility Fabian Kley, Fraunhofer ISI October 9 th, 2009 Fraunhofer ISI is actively researching the field of e-mobility with focus on system analysis Fraunhofer ISI Current E-Mobility
More informationPowertrain Systems Improving Real-world Fuel Economy
FEATURED ARTICLES Environmentally Compatible Technologies for a Car Society that Coexists with the Earth Powertrain Systems Improving Real-world Fuel Economy Integration with Autonomous Driving/Driver
More informationAnalysis of CO2 Emissions to Consider Future Technologies and Integrated Approaches in the Road Transport Sector
February 26, 213 IEEJ APERC Annual Conference Keio Plaza Hotel Tokyo, Shinjuku, Tokyo Analysis of CO2 Emissions to Consider Future Technologies and Integrated Approaches in the Road Transport Sector Shuichi
More informationLow-torque Deep-groove Ball Bearings for Transmissions
New Product Low-torque Deep-groove Ball Bearings for Transmissions Katsuaki SASAKI To achieve low fuel consumption in response to environmental concerns, we have focused on reducing the friction of tapered
More informationStudy on Braking Energy Recovery of Four Wheel Drive Electric Vehicle Based on Driving Intention Recognition
Open Access Library Journal 2018, Volume 5, e4295 ISSN Online: 2333-9721 ISSN Print: 2333-9705 Study on Braking Energy Recovery of Four Wheel Drive Electric Vehicle Based on Driving Intention Recognition
More informationHybrid Architectures for Automated Transmission Systems
1 / 5 Hybrid Architectures for Automated Transmission Systems - add-on and integrated solutions - Dierk REITZ, Uwe WAGNER, Reinhard BERGER LuK GmbH & Co. ohg Bussmatten 2, 77815 Bühl, Germany (E-Mail:
More informationToyota. Stephen Stacey - General Manager Arjan Dijkhuizen - Senior Engineer. Government & Technical Affairs Toyota Motor Europe TOYOTA MOTOR EUROPE
Toyota Stephen Stacey - General Manager Arjan Dijkhuizen - Senior Engineer Government & Technical Affairs Toyota Motor Europe Toyota Europe and UK Europe: Began selling cars in 1963 Over 6 billion invested
More informationDownsizing Powertrains NVH Implications and Solutions for Vehicle Integration
Downsizing Powertrains NVH Implications and Solutions for Vehicle Integration Realize innovation. Downsizing Powertrains NVH Implications and Solutions for Vehicle Integration Downsizing trends and NVH
More information- Status Report - System Power Determination of Electrified (Light Duty) Vehicles. Subgroup Leader: Germany, Korea. EVE-17 meeting
System Power Determination of Electrified (Light Duty) Vehicles - Status Report - Subgroup Leader: Germany, Korea EVE-17 meeting Geneva - January 11, 2016 Outline 1. Status: Screening of methods for determination
More informationVibration, and Sound Quality
Vehicle Noise, Vibration, and Sound Quality By Gang Sheng (Gang Sheng Chen) SASInternational Warrendale, Pennsylvania USA Table of Contents Preface ix Chapter 1 Introduction to Vehicle Vibrations and Sound
More informationSYNCHRONIZATION SYSTEMS
SYNCHRONIZATION SYSTEMS Partners for Solutions TWO PARTNERS ONE JOINT SOLUTION Dear Customer, This cooperation highly suggests itself, not only because of our close proximity to each other at several locations
More informationA comparison of the impacts of Euro 6 diesel passenger cars and zero-emission vehicles on urban air quality compliance
A comparison of the impacts of Euro 6 diesel passenger cars and zero-emission vehicles on urban air quality compliance Introduction A Concawe study aims to determine how real-driving emissions from the
More informationIGBT Modules for Electric Hybrid Vehicles
IGBT Modules for Electric Hybrid Vehicles Akira Nishiura Shin Soyano Akira Morozumi 1. Introduction Due to society s increasing requests for measures to curb global warming, and benefiting from the skyrocketing
More informationAging of the light vehicle fleet May 2011
Aging of the light vehicle fleet May 211 1 The Scope At an average age of 12.7 years in 21, New Zealand has one of the oldest light vehicle fleets in the developed world. This report looks at some of the
More informationSURFACE VEHICLE STANDARD
400 Commonwealth Drive, Warrendale, PA 15096-0001 SURFACE VEHICLE STANDARD J1287 Issued 1980-06 Reaffirmed 1998-07 REAF. JUL1998 An American National Standard Superseding J1287 JUN93 Measurement of Exhaust
More information