13 Oct '11, 5pm

Guest Post: Saving Rare-Earth Metals With Vehicle System Design: How can we stretch the rare-earth metals supp...

Guest Post: Saving Rare-Earth Metals With Vehicle System Design: How can we stretch the rare-earth metals supp...

How can we stretch the rare-earth metals supply for vehicle motor magnets? Phillip Totaro examined this question in these pages earlier this year from the point of view of motor design internals and wind turbines. But top-level systems and circuits design can also have a major impact on rare-earth consumption, particularly in the automotive arena. Consider the Toyota Prius and the Honda Insight. The original Insight, that is: the aluminum two-seater. The Prius has about 80 kilowatts of installed motor generator (MG) capacity; the Insight, 10 kilowatts. What's more, it uses only 12 percent as much rare earth materials and boasts 40 percent more passenger capacity -- while getting 10 more miles per gallon (MPG). Informed observers may object that the Insight is a 'mild' hybrid, unable to roll away or reverse in electric-only mode, and that the Honda mild hybrid system has do...

Full article: http://www.greentechmedia.com/articles/read/saving-rare-e...

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