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Viewing 1 to 30 of 58
2015-04-14
Technical Paper
2015-01-0880
Masanobu Takazawa, Kiminori Komura, Toru Kitamura
Abstract Amidst the rising demand to reduce CO2 and other greenhouse gas emissions in recent years, gasoline homogeneous-charge compression ignition (HCCI) has gained attention as a technology that achieves both low NOx emissions and high thermal efficiency by means of lean combustion. However, gasoline HCCI has low robustness toward intracylinder temperature variations, therefore the problems of knocking and misfiring tend to occur during transient operation. The authors verified the transient operation control of HCCI by using a 4-stroke natural aspiration (NA) gasoline engine provided with direct injection (DI) and a variable valve timing and a lift electronic control system (VTEC) for intake air and exhaust optimized for HCCI combustion. This report describes stoichiometry spark ignition (SI) to which external exhaust gas recirculation (EGR) was introduced, HCCI ignition switch control, and changes in the load and number of engine revolutions in the HCCI region.
2009-04-20
Journal Article
2009-01-0011
Glenn W. Scheffler, Jake DeVaal, Gery J. Kissel, Michael Veenstra, Tommy Chang, Naoki Kinoshita, Matt McClory, Hajime Fukumoto, Marcel Halberstadt, Jesse Schneider
The SAE Fuel Cell Vehicle (FCV) Safety Working Group has been addressing FCV safety for over 9 years. The initial document, SAE J2578, was published in 2002. SAE J2578 has been valuable as a Recommended Practice for FCV development with regard to the identification of hazards and the definition of countermeasures to mitigate these hazards such that FCVs can be operated in the same manner as conventional gasoline internal combustion engine (ICE)-powered vehicles. SAE J2578 is currently being revised so that it will continue to be relevant as FCV development moves forward. For example, test methods were refined to verify the acceptability of hydrogen discharges when parking in residential garages and commercial structures and after crash tests prescribed by government regulation, and electrical requirements were updated to reflect the complexities of modern electrical circuits which interconnect both AC and DC circuits to improve efficiency and reduce cost.
2016-04-05
Technical Paper
2016-01-0488
Takashi Izawa, Motohiko Koushima
Abstract In order to determine the seizure limit of the main bearings of passenger vehicles under actual operating conditions, evaluations were conducted in environments containing noise factors (Various factors which designer cannot adjust and which make function vary were defined as noise factors in this paper.) [1,2] It was shown that noise factors have an effect on seizure limit performance in relation to performance under ideal test conditions (test conditions in which no noise is present). In relation to oil properties, the results showed that a reduction in viscosity as a result of dilution affected seizure limit performance. In relation to the shape of the sliding sections of the test shaft, seizure limit performance declined in a shaft in which the central section was swollen (“convex shaft” below).
2016-04-05
Technical Paper
2016-01-1321
Masahiro Fukazawa, Tsuyoshi Murao, Shingo Unigame
Abstract The CAE method to predict the vibration transfer function of the hydraulic engine mount on a vehicle with sufficient precision and calculation time without prototype cars was developed. The transfer function is given in the following steps. First, rubber deformation form under the power train weight loaded must be predicted. It’s obtained by using a reduction model of an engine mount, as a unit, which doesn’t have its fluid sealed inside, with the technique to get the static spring characteristics in a non-linear relationship. Second, Young’s modulus and structural damping coefficient for the deformed rubber must be given. As for these characteristics, ignoring the relations between these values and strain, the constant values are used. This considerably reduces computation time and model size. Next, the reduction model and the fluid model have must be combined to express actual product. In this step, coupled analysis for fluid and structure is used.
2010-04-13
Article
Top powertrain executives at the SAE 2010 World Congress in Detroit express cautious confidence in meeting new fuel-efficiency and emissions regs, but say cost is an ongoing concern.
2017-09-14
Article
One of the most significant developments in internal combustion engine (ICE) technology for decades, Mazda’s innovative Skyactiv-X Spark Controlled Compression Ignition (SpCCI) combustion system is slated for production in 2018.
2016-02-22
Article
Expert presenters at the 13th annual SAE Hybrid & EV Symposium agreed vehicle hybridization minimally will need to become mainstream technology in order for OEMs to meet pending global CO2 emission requirements.
2012-01-10
Article
The 2013 Accord, which goes on sale this fall, will feature three all-new powertrains, including the first U.S. application of both a 2.4-L direct-injected engine and two-motor plug-in hybrid system from Honda’s next-generation Earth Dreams powertrain technologies. The V6 Accord will be the first Honda sedan to feature a new six-speed automatic transmission.
2009-03-27
Article
Developed to be attainable for Gen Y buyers, the 2010 Insight is a major piece in Honda’s hybrid-portfolio plans.
2012-12-10
Article
ARPA-e program involves several companies, government labs, and universities developing solutions so the U.S. can take advantage of its abundant natural gas reserves.
2014-07-30
Article
The Electric Power Research Institute has announced a collaboration with 8 automakers and 15 utilities to develop and demonstrate an open grid integration platform for plug-in electric vehicles (PEVs).
2011-11-17
Article
Honda on Nov. 8 held a ceremony in Guangzhou, China, to commemorate the start of demonstration testing of electric vehicles (EVs). The model to be used is the Fit, equipped with electromotive technologies such as an advanced lithium-ion battery and coaxial motors that Honda has used in development of the FCX Clarity fuel cell electric vehicle.
2012-10-09
Article
Two recent announcements attest to continuing efforts by government and industry to make the hydrogen fuel cell vehicle viable. On Oct. 5, the U.S. Department of Energy said it would make available $1 million for efforts to "identify cost-effective and efficient materials and processes to produce hydrogen from renewable energy sources and natural gas."
2013-06-12
Article
Guangqi Honda Automobile Co., Ltd. (GHAC), a Chinese automobile production and sales joint venture between Honda of Japan and Guangzhou Automobile Group Co. of China, recently commemorated the start of construction of a third vehicle production line and an engine plant within the borders of the existing ZengCheng Plant in Guangzhou, Guangdong province.
2012-06-08
Article
At 118 MPGe (miles per gallon equivalent), the MY2013 Honda Fit EV is tops in fuel economy among models sold in the U.S. It has a U.S. EPA consumption rating of just 29 kW·h/100 mi and an estimated range of 82 mi—more than that of the Ford Focus Electric (105 MPGe, 76 mi), Nissan Leaf (99 MPGe, 73 mi), and Mitsubishi i (112 MPGe, 62 mi).
2010-06-24
Article
Brammo has equipped its new electric motorcycle with high-quality chassis components and a well-designed electric drivetrain based around a permanent-magnet AC electric machine and a Valence 3.1 kW•h lithium-iron-phosphate battery pack.
2017-03-21
Article
With the 2017 Clarity FCV, Honda gets serious about fuel-cell power and a hydrogen infrastructure.
2012-09-07
Article
Forthcoming model has 10-15 mi (16-24 km) range on battery pack, and it also operates in hybrid mode and direct drive from engine through gearset into transaxle.
2012-01-10
Article
Featuring new powertrain and chassis technology, the next-generation supercar, which is due to come to market within the next three years, will be developed by engineers in the U.S. and manufactured at an Ohio plant.
2014-08-12
Article
Replacing the TSX and TL models, the all-new 2015 TLX is positioned at the heart of the Acura sedan lineup, boasting two advanced new powertrains, including a “world’s first” eight-speed DCT with torque converter, and next-generation handling technologies.
2014-04-23
Article
Chevrolet Trax and Honda HR-V, based on the Sonic and Fit, will use the same engines as the cars, offer all-wheel drive, slot in below Chevy Equinox and Honda CR-V.
2010-04-14
Article
The internal-combustion engine will continue to be the primary propulsion source for vehicles for at least the next two decades, SAE 2010 World Congress panelists agree.
2017-09-07
Article
Emissions are diesel's perception problem; the best way to solve it is by coming clean on new-age emissions tests.
2012-09-10
Article
The North American version of the new 2013 Honda Accord (see 2 October AEI) features a new exhaust catalyst design that reduces the use of rhodium by 50%. The automaker plans to adopt the catalyst technology across its vehicle lines.
2009-03-05
Article
American Honda Motor Co. Inc. has introduced a Class 8 hybrid diesel-electric truck into its fleet at its Alpharetta, GA, parts center. The SmartWay-certified Peterbilt Model 386 hybrid truck is expected to reduce CO2 emissions by almost 10,000 ton (9070 t) per year, compared to its diesel counterpart.
2013-05-14
Article
Honda has extended its range of rammer engines with the introduction of the new GXR120 model, suitable to power rammers from 50 to 80 kg (110 to 176 lb).
2010-04-26
Article
The innovation consolidates the four major components of a typical diesel aftertreatment system—the De-NOx catalyst, diesel oxidation catalyst (DOC), soot filter, and the selective catalytic reduction (SCR) system—into two major elements: a DOC/lean-NOx trap (LNT) and an SCR catalyst integrated with the soot filter substrate.
2012-11-20
Article
The electrified powertrain, a newly developed regenerative braking system, and Bio-Fabric seating material in Honda's new Fit EV all stem from developments in the FCX Clarity fuel-cell car and other EV forebears.
2013-12-18
Article
The 2014 Accord Hybrid employs Honda’s cleverly designed i-MMD two-motor hybrid system that debuted on the Accord Plug-in Hybrid sedan. Honda's chief engineer provides insight.
2009-11-23
Article
Honda’s battery-electrified modes of transport on display at the 2009 Tokyo Motor Show included four-, two-, and one-wheel concept vehicles, ranging from relatively small to very small.
Viewing 1 to 30 of 58

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