Battery technology remains a major challenge for developers of electric and hybrid-electric vehicles. With a three- to five-year life span, every hour of battery life counts in determining vehicle cost-effectiveness. Moreover, concentrated temperature gradients, indicating heat buildup within a battery module or across a battery pack, can shorten battery life by causing accelerated corrosion, chemical imbalances, and thermal strains on electrode materials. To address these problems, engineers at the Southwest Research Institute (SwRI) Vehicle Systems Research Department use thermal imaging to better understand how the batteries behave under certain conditions, such as experimental fast-charging completed within 20 minutes or at extreme temperatures. The imaging can rapidly and accurately identify energy-wasting hot spots, unpredictable gradients, and transient behaviors. Without thermal imaging, engineers must use thermocouples placed at a discrete number of sites on the batteries to obtain temperature distributions. Not only is this costly, but thermocouples interfere with the taking of sensitive measurements. FAX Elizabeth Douglas at (210) 522-3547.
With major product releases coming from big names like Sony, Microsoft, and Samsung, and big investments by companies like Facebook, 2015 could be the year that virtual reality (VR) and augmented reality (AR) finally pop. Here's take a look back at some of the technologies that got us here (for better and worse).
Good engineering designs are those that work in the real world; bad designs are those that don’t. If we agree to set our egos aside and let the real world be our guide, we can resolve nearly any disagreement.
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