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An early gas-electric hybrid was developed by...Exxon?

We're not sure which aspect of Exxon's 1970s-era efforts to develop advanced and electrified powertrains is the most ironic. There's Exxon, that of the Valdez oil spill infamy, being on the leading edge of hybrids and electric vehicles. There's a boat-like Chrysler Cordova getting 27 miles per gallon. And there's the central role a Volkswagen diesel engine plays in that hybrid development. It's all outlined in an article (linked above) by Inside Climate News, and it's an amusing read. Flush with cash and fearing what it thought was peak oil production in the 1970s, Exxon funded a host of new ventures divisions geared to find alternatives to gas-powered powertrains. In the early 1970s, Exxon lured chemist M. Stanley Whittingham to develop what would become a prototype of a lithium-ion rechargeable battery. Then, in the late 1970s, Exxon pioneered the concept of using an alternating-current (AC) motor as part of a gas-electric hybrid vehicle. The company retrofitted a Chrysler Cordova (yes, that's the model Ricardo Montalban used to hawk) with a powertrain that combined 10 Sears Die-Hard car batteries, an alternating current synthesizer (ACS), a 100-horsepower AC motor, and, yes, a four-cylinder 50-horsepower Volkswagen diesel engine. The result was a rather large two-door sedan that got an impressive 27 mpg. And while US automakers didn't see the potential in the early concept, in 1980 Exxon and Toyota began collaborating on a project that would involve retrofitting a Toyota Cressida with a hybrid engine. That car was completed in 1981, and may have been one of the seeds that eventually helped sprout the concept of the Toyota Prius. Soon after rebuilding the Cressida, Exxon would get out of the advanced-powertrain-development business, as oil prices began to fall in the early 1980s, spurring cost-cutting measures. Cry no tears for the Exxon, though, as what's now known as ExxonMobil is the largest US oil company. Related Video: News Source: Inside Climate NewsImage Credit: Spencer Platt/Getty Images Green Read This Chrysler Toyota Electric Hybrid battery

2018 Honda Odyssey bests Pacifica, Sienna in minivan crash, LATCH tests

Honda has a lot to be proud of following the latest round of passenger small-overlap crash testing by the IIHS. The safety organization tested the 2018 Honda Odyssey, 2018 Chrysler Pacifica and 2018 Toyota Sienna, and the Odyssey managed the best rating of "Good." The Pacifica followed behind with an "Acceptable" rating, and the Sienna brought up the rear with just a "Marginal." Both the Pacifica and Sienna lost points because the structure around the passengers collapsed to differing extents, leading to parts of the structure intruding into the passenger compartment. The Pacifica didn't intrude enough to harm passengers, with each injury area still having a Good rating, but the Sienna's structure intruded far enough to potentially harm the leg and foot areas, leading to an Acceptable rating in those specific areas. In addition to the small overlap crash test, the IIHS evaluated all three minivans for LATCH child seat anchor ease of use. Once again, the Odyssey aced the test with a Good+ rating, which is awarded for both ease of use and offering multiple anchor point options. The Pacifica and Sienna swap the crash test ratings, with a Marginal for the Chrysler and an Acceptable for the Sienna. The Odyssey and Pacifica can both brag that they're Top Safety Picks, and they'd get Top Safety Pick+ awards if they weren't hampered by headlights that only get Acceptable ratings. The Toyota Sienna fails to earn the regular Top Safety Pick award because both small overlap tests yielded results that were too low. Only one other minivan tested by IIHS has the Top Safety Pick rating, and that's the Kia Sedona. It earns an Acceptable rating in LATCH usability, and its headlights actually earned a Good rating. It hasn't undergone passenger-side small overlap crash testing yet. If it fares well, it could get bumped up to a Top Safety Pick+ rating. Related Video: Image Credit: IIHS Chrysler Honda Toyota Safety Minivan/Van consumer toyota sienna chrysler pacifica IIHS Top Safety Pick

Toyota finds 10% MPG improvement in hybrid PCU

Keeping up its from-all-angles approach to efficiency, Toyota has found yet another way to eke out up to ten percent more precious MPGs in its hybrid vehicles, this time electronically. The automaker has announced the development of new silicon carbide (SiC) power semiconductors for use in power control units, which it will begin testing on Japanese roads within the next year. The PCU using the silicon carbide compound offers less electrical resistance, which improves efficiency when passing current between the battery and electric motor. It also loses less power after shutting off, and can operate at a higher frequency. The net power loss of the new PCU is just one-tenth of the current silicone-only version (the latter accounting for 20 percent of total electrical power loss in today's hybrids). The result, so far, is a claimed five-percent improvement in fuel economy in test vehicles, with the potential of ten percent by the time the new SiC power semiconductor comes to market. Additionally, the carbide wafers allow for smaller a power module, coil and capacitor, thus allowing the entire PCU to be 80 percent smaller (see the side-by-side comparison in the accompanying photo, which you can click to enlarge). We've got a while to wait before we start to see the carbide technology to start making a real-world impact. Toyota aims to begin using the SiC units in 2020. By then, with improvements in the company's other key efficiency factors - engine technology and aerodynamics - cars like the Prius will likely see significant gains in fuel economy. Read more in the press release below. Toyota Develops 'Diamond-like' Computer Chips to Boost Hybrid Mileage May 20, 2014 Toyota City, Japan – Toyota is using one of the hardest materials in nature after diamonds to develop a semiconductor chip it hopes will improve the fuel efficiency of its hybrids, such as the Prius, by as much at 10 percent. The company and its partners announced today that they have developed a silicon carbide (SiC) power semiconductor for use in automotive power control units. Toyota plans to begin test-driving vehicles with the technology on public roads in Japan within a year. The chips, made from carbide - one of the hardest materials in nature, theoretically have superior characteristics such as one-tenth the electrical power loss and 10 times the drive frequency. Toyota said the chips would also allow it to reduce the size of current automotive power control units by 80 percent.