Mechanical/​Mechatronics

Transportation

Stay updated on the innovations in transportation technologies. Explore the articles and technical briefs on electrification and autonomous driving that have impacted transportation design and engineering.

Marine-grade stainless steel is valued for its performance under corrosive environments, and for its high ductility — the ability to bend without breaking under stress. But conventional...

Briefs: Materials
Water-Repellent Nanotextures Possess Anti-Fogging Capability

Some insect bodies have evolved the ability to repel water and oil, adhere to different surfaces, and eliminate light reflections. Scientists have been studying the physical mechanisms underlying these properties found in nature and mimicking them to design materials for use in...

Briefs: Electronics & Computers
Electrode Design Boosts Supercapacitor Performance

Supercapacitors are rechargeable energy storage devices that deliver more power for their size than similar-sized batteries. They also recharge quickly, and they last for hundreds to thousands of recharging cycles. Today, they are used in hybrid cars’ regenerative braking systems and for other...

Polymer membrane separators play a crucial function in many energy and water technologies including energy storage, hydrogen generation through water electrolysis, and...

Technological advancements in materials, sensors, and computing have driven demand for higher-performance satellites. Satellites need to be much more capable in a much smaller size with a...

Application Briefs: Sensors/Data Acquisition
Autonomous Vehicles and the Burden of Testing
AB Dynamics
Wiltshire, England
www.abdynamics.com

Autonomous vehicles cannot be tested for every eventuality that might transpire in their operating environment. As the technology...

The task of creating a streetlamp optical system has changed over the last 20 years and due to this change, so has optical design software. Let’s compare the task of...

A driverless car is making its way through a winding neighborhood street, about to make a sharp turn onto a road where a child’s ball has just rolled. Although no person in the car can see that ball, the...

Electric vehicles may one day be able to recharge while driving down the highway, drawing wireless power directly from plates installed in the road.
A reader asks: Will it be the OEMs or the Tier-1 and Tier-2 suppliers who will be purchasing 3D metal printing machines?
Special Reports: Energy
Vehicle Electrification - June 2018

Demand for electric vehicles is accelerating, with several major automakers announcing that their entire lineups will either be hybrid or all-electric by the 2020's. To help you keep pace with the rapid...

Special Reports: Manufacturing & Prototyping
Additive Manufacturing - June 2018

AM/3D Printing is fundamentally changing how products are prototyped and produced in aerospace, medical, automotive, and many other fields. To help you keep pace with the latest advances, we present this...

Briefs: Transportation
Sensor-Free Smart Wheel

Technology was developed that not only allows wheels to “know” when and how to rotate, but also enables them to work together in interactive teams. The new technology can be used wherever there is a need for...

Briefs: Manufacturing & Prototyping
Offset Compound Gear Inline Two-Speed Drive

Innovators at NASA’s Glenn Research Center have developed a simple, lightweight, inline, two-speed drive that can be used either as an overall transmission, or as a supplemental add-on input...

Briefs: Transportation
Ultra-Wide-Bandgap Power Electronics

Power electronics used for routing, control, and conversion of electrical power traditionally utilize silicon semiconductors. These systems tend to be bulky, require active cooling, and are inadequate for...

Vanadium dioxide’s unique properties make it ideally suited for outperforming silicon and giving rise to a new generation of low-power electronic devices. This compound can...

Can metal 3D printing help automakers with more than just prototyping? It can, and it has, says our engineering expert.

An inability to handle misty driving conditions has been one of the chief obstacles to the development of autonomous vehicular navigation systems that use visible light. These systems are...

A “MapLite” framework from MIT allows self-driving cars to navigate roads – with just GPS and sensors as a guide.
Does less nitrogen oxide mean more particulate emissions? A reader asks our expert.
Articles: Transportation
3D-Printed Lab on Wheels

Next-generation manufacturing takes on a 50-year-old icon as ORNL researchers transform the classic Shelby Cobra sports car into a 3D-printed laboratory on wheels. Additive manufacturing enables the seamless...

What's the best platform for controlling vehicle emissions? "It depends!" says one engine expert.

The market for higher-voltage automotive systems is expanding. The number of electric vehicles that use battery-powered drive systems having voltage equal to or higher than 48V is...

Researchers at Washington State University, Pacific Northwest National Laboratory, and the University of New Mexico have created a catalyst capable of reducing...

A reader asks our expert: "How do road conditions impact vehicle-to-vehicle responses?"
By replacing the cam, a new valve technology may lead to more affordable — and more environmentally friendly — engines.
Question of the Week: Transportation
Will laser-based imaging help self-driving cars someday see around corners?

An autonomous-driving technology from Stanford University gives vehicles the capability to "peek" around corners. Tech Briefs spoke with the creators of the laser-based system. To make the technology road-ready, the team still needs to speed-up the data-acquisition...

A Tech Briefs reader asked our expert: What is the best data-processing architecture for truly autonomous, 'Level-5' vehicles?
Stanford University is developing a laser-based imaging technology that allows cars to peek around corners.

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