Getting a grip on AWD efficiency
The safety and performance benefits of all-wheel drive are
undeniable, but so are the penalties of added weight, friction
losses, and complexity. Clever axle disconnects and E-axles are
driving future AWD developments.
E pluribus unum
Inputs from many sensors are being combined to give safety systems
a true vision of vehicle surroundings, with the resulting sensor
fusion becoming a mainstay of autonomous vehicle electronics.
Lightweighting poses repair challenges
Mass-produced aluminum bodies and mixed-material structures present
challenges for assembly and repair, as automakers increasingly
pursue these lightweight strategies.
Setting the standard
Meggitt CTO Emeritus begins term at helm of SAE International,
seeks to encourage cross-sector relations, elevate image of SAE as
aerospace industry leader.
Hard to answer
Technical and personal issues make it challenging to link
smartphones to vehicles.
New OGeco hybrid transmission is a
Finding space for an electric motor, battery, and all the controls
that go with them while still providing sufficient 5-passenger
cabin room and trunk/luggage capacity is a challenge.
Mazda enters subcompact crossover
Mazda dove into the burgeoning market for subcompact crossover SUVs
with the 2014 Los Angeles Auto Show introduction of the CX-3, a
stylish new tall wagon built on the platform of the new
2015 Hot Technologies
Our annual year-end review of new and significant technology
applications for the upcoming model year's vehicles.
Can Toyota's Mirai be the next
Toyota's first fuel-cell car has a range of 300 miles, fills up
in 5 minutes, and accelerates from 0 to 60 mph in about 9
Integrated automotive gateway can enable connected
One of the biggest challenges connected cars pose is the
integration of information and consumer electronics into the car
and ensuring connectivity among them.
Outlook for autonomous driving includes
Connectivity with off-board data and services and among vehicles
will be crucial in maintaining safety and security in future
The next wave of crash simulation
As computing speed has improved and software itself has made
significant speed and performance gains with each release, modeling
tools are now quick enough to build high-quality, large,
high-detail vehicle models in a very efficient manner.
SAE 2014 Convergence preview
Interest in advanced driver-assistance technologies is surging,
with automotive engineers and decision makers at OEMs and suppliers
working feverishly on the convenience vs. safety trade-off and
other electronics-related challenges.
Cooled EGR shows benefits for gasoline
Exhaust gas recirculation systems now in use on diesel engines are
used mainly to meet emissions regulations. In gasoline engines,
they are an appealing way to meet ever more stringent fuel-economy
Women in Vehicle Engineering
Across the industry, talented women are ascending the
engineering-career ladder at higher rates than ever before, but
they continue to face challenges in a male-dominated industry. In
this Special Report, AE speaks with current and future industry
leaders from U.S., European, and Asian OEMs, academia, and other
experts, and analyzes data, to assess progress to date and plot the
future of this critical and dynamic professional trend.
As higher-volume mass production gets underway, OEMs and suppliers
are finetuning their capabilities.
2015 New Vehicle & Technology
Automotive Engineering editors take a look at some of the more
intriguing new models, including GM's full-size SUVs, BMW's
i8 plug-in-hybrid sports car, Acura's TLX sedan, and Ford's
F-150 full-size pickup truck.
Picturing the map for smoother rides
As conventional vapor-compression cooling technology faces
phase-out, what could take its place? The U.S. Department of
Energy's ARPA-e has funded research to help answer this
Steel red-hot for weight reduction
The steel industry's focus to remain a top material choice has
not diminished, especially with automakers and suppliers looking
for ways to lightweight passenger vehicles to meet the U.S.
government's 54.5-mpg fleet average requirement in
The latest strategies are investigated for vehicle development by
automakers and major suppliers.
Sports cars embrace array of green
IMSA Tudor United SportsCar Championship promotes a variety of
green technologies to link racing to the road.
More gears, more challenges
Many strategies, as well as key software and hardware aspects
related to controllers, networks, sensors, and actuators, must be
considered to keep automatic transmissions shifting smoothly as
more gears are added to improve fuel economy.
Advancing structural composites
Industry experts address the opportunities and challenges involved
with moving toward composite-intensive vehicles, including
Nissan's effort to produce a high-volume, fully recyclable
composite liftgate with low metal content.
Systems-engineering a new 4x4 benchmark
Chrysler Powertrain teamed with AAM to create the industry's
most capable, sophisticated-and arguably most
fuel-efficient-AWD/4WD driveline. Top engineers talk about their
Achates aims at 2025 light-truck power
After more than a decade of steady development, Achates Power's
opposed-piston two-stroke diesel is impressing powertrain experts
with its test results and pace of technical progress.
Lighter, stronger chassis
Development of a new high-strength aluminum casting alloy for the
production of suspension components.
No hands, lots of brains
A hefty amount of computing power built with new hardware and
software architectures will be needed when vehicles begin taking
over more of the driving tasks.
Aerodynamics and flow simulations come of
With the advent of faster computers, engineers are using CFD
software as a practical tool, shaping designs early in the product
development cycle. The challenges today are in how best to use it
and by whom.
New rules shuffle the F1 deck
New turbocharged hybrid-electric power units and revised
aerodynamics may scramble the familiar order in Formula One for
Stars of the show floor
The editors of Automotive Engineering annually select from among
SAE World Congress exhibitors the technologies that meet their
criteria for a coveted Tech Award. Judging is based on level of
design and engineering innovation, uniqueness, potential for
'real world' production application, and potential benefit
for industry customers and end users. Read on for articles on the
five SAE 2014 Tech Award winners, followed by briefs on additional
show-floor highlights that we call 'What's New.'
Alternative fuels face challenges
With gasoline prices seeming to stabilize and fuel economy measures
taking hold is there a compelling need for alternative fuels?
Automotive engineers offer some surprising reasons why there
Touch-less control coming to cars
Use of proximity and gesture-recognition systems in auto cockpits
could rise fifty-fold within a decade.
Forming a strong bond
Multi-material vehicles are becoming more prevalent as automakers
attempt to reduce vehicle weight and boost fuel efficiency.
Selecting the proper adhesive is critical when bonding dissimilar
SAE 2014 World Congress preview special section:
'Creating New Possibilities'
Host company Hyundai and Tier 1 Strategic Partner, Delphi,
established "Creating New Possibilities" as the theme for
this year's premier engineering event taking place April 8-10
in Detroit's Cobo Center. This special Congress preview section
uncovers some of those possibilities, featuring insights from the
event's executive leadership; details of a Delphi/Hyundai
advanced engine program; highlights from the technical program in
the areas of powertrain, materials, testing and simulation,
electronics, interiors, and body/chassis; and more.
Designing for downforce
Airflow is paramount for performance vehicles, which require
aerodynamic enhancements to promote high-speed stability and
greater cornering capability.
Powering a drive to higher voltages
48-V systems are likely to power a new generation of functions
including stop-start technology.
Managing the deluge of data
The model-based development (MBD) process has been a key enabler of
technical advancement in the transportation industry; however, the
MBD process leads to the generation of large volumes of data
artifacts and work products. To maintain efficiency while
continuously improving the quality of products, it is necessary to
be able to manage this data in an efficient manner.
A vision for SAE's future
Longtime GM engineering executive and STEM education supporter
Daniel M. Hancock brings a focused approach to his term as SAE
Picturing a brighter future
Displays are becoming a central focus for automotive interior
design, forcing engineers to examine myriad trade-offs related to
size, resolution, and supporting electronics.
New technologies for 2014
OEM and supplier engineers are all about technical innovation. In
this special feature, Automotive Engineering International
highlights (in no special order) some notable ones debuting on 2014
Taming automotive complexity with digital
From helping automotive engineers develop lighter structures to
delivering fewer defects in manufacturing, digital tool providers
are continuing their push upstream in the engineering process.
Chrysler sees the ICE future
The three-year, $30 million Multi-fuel Multiair R&D program
with the U.S. DOE is nearing completion. Here's what Chrysler
Powertrain engineers have learned as they try to achieve a 25%
As vehicle systems become more complex and interact with more
internal and external elements, the potential for outside intrusion
and tampering increases for both vehicles and the transportation
Kia moves upscale with 2014 Cadenza
The all-new premium sedan is the Korean automaker's 'most
technologically advanced' vehicle ever on U.S. roadways.
2014 Corvette: 460 hp, 30 mpg, 1 g,
No other sports car can match the C7's combination of
performance, value, and overall efficiency. Chief Engineer Tadge
Juechter provides insight on executing a masterpiece.
Mercedes anticipates the future with new
Mercedes-Benz, using networked electronic systems (sensor fusion),
is introducing on its new S-Class a step-change suspension system
that can 'see' (via a stereo camera) the road surface ahead
and make ultra-high-speed decisions on how to deal with it.
Toyota engineers a shine into the 2014
In an effort to stay competitive with a car that has been on the
market for 47 years, Toyota will offer an all-new Corolla for 2014
with a CVT with intelligent shifting and standard LED