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.
Design collaboration now includes the entire value chain. From suppliers to customers, purchasing to outside experts, the collaborative design team includes internal and external groups. The design process now stretches across the globe in multiple software formats.
We're talking a look at 10 of the coolest technologies being developed by the US military today. In addition to saving lives on the battlefield, don't be surprised if you see some of these in your daily life some time in the near future.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.