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How Mazda got Skyactiv-X to work is incredible

"Take everything you know about engines and turn it around," Mazda North America Vehicle Development Engineer Dave Coleman says, patiently and with a look of benevolent pity, as he's quizzed about the particulars of the company's new engine. The Skyactiv-X engine is enigmatic — and deceptively simple in operation. And the bottom line for American consumers is that they'll be able to buy a car (or crossover; we don't know yet what vehicle will first get it) by late 2019 that provides diesel-like fuel economy but runs on regular old gasoline. In between diesel and spark ignition, but it's neither To truly understand it, you have to dive into the contradictions. Take that regular old gasoline: Contrary to common sense, the lower the octane, the better it works. In the lab, the Skyactiv-X engine loves 80 octane. The lowest Americans get is 87, so the engine is tuned for that octane. Go higher and you lose some low-end torque. Coleman was right. It's hard to wrap your head around an engine that thrives just at the point when most gas engines would aggressively self-destruct. It uses a supercharger to pump additional air — but not additional fuel. It uses spark plugs to start a combustion cycle that normally doesn't need a spark. And, quixotically, it's not displacing Mazda's own American-market diesel engine, currently languishing in a seemingly endless hell of regulatory approval. More bizarre: Mazda is a tiny automaker facing real existential headwinds, and gasoline compression ignition is a massive challenge. GM and Hyundai announced compression ignition, or HCCI, projects (full name, homogeneous charge compression ignition) to great fanfare, but they never amounted to a production hill of beans, crippled by reliability issues or horrible vibrations. Worse, they only worked at an unusably narrow range — low RPMs and low loads. HCCI research improved direct-injection gas and diesel engine technologies for these companies, but HCCI itself remains untamed. The benefits of lean combustion Why even try to tame HCCI? The answer is much better fuel economy and lower emissions. Less burned carbon-based fuel, less carbon dioxide released. That's simple. But there are some thermodynamic reasons for the lean combustion you can achieve with compression ignition that are worth explaining. The ideal amount of fuel for a conventional engine to burn is about a 14:1 air-to-fuel ratio. That lets every molecule burn nicely, in theory.

Mazda3 celebrates 10 happy years

Mazda is on the cusp of unveiling an all-new Mazda3, but the compact will mark an important milestone before that happens. The very first Mazda3 rolled off of the assembly line on June 25, 2003. A decade later, the little car has snagged some 136 awards. The first generation sold 2.2 million units over the span of six years, and the second has smiled its way into the hearts of 1.4 million buyers since 2009. Mazda notes the machine even took the honor of being the top-selling passenger car in Australia in 2011 and 2012.
So, what will the future bring? The Japanese automaker is keeping the details to itself for the moment. From the spy photos we've seen, it looks as if the new design will fall under the company's new Kodo design philosophy. That same language brought us the perilously sexy Mazda6, and the new Mazda3 should be no less attractive. You can check out those photos here.
You can also read the full press release on the compact's 10-year anniversary below.

Mazda ad showing Facebook updates while driving criticized by Senate committee [w/video]

Senate Commerce Committee Chairman Jay Rockefeller, D-WV, held an all-day summit on Thursday to discuss the dangers of using modern technology while driving, during which an ad that Mazda aired during the Super Bowl was used as an example of the worrisome future towards which we're headed. While seemingly innocuous at first glance, the ad, which can be seen below, shows a brief glimpse of a driver using the Mazda Connect infotainment system in a Mazda3 to check/update his Facebook page while driving down the road.
Officials from major communications companies like Samsung, Google and Apple attended the summit, as well as representatives from automakers including General Motors and Toyota. A representative from Mazda was not present despite the company's own currently available technology being used as the poster child for the issues being discussed.
According to Automotive News, Senator Rockefeller warned the automaker and communication execs on hand that he will propose legislation to regulate the use of technology while driving if they don't work together to implement their own standards more quickly. Michael Robinson, GM's vice president of sustainability and global regulatory affairs, argued that his company has had distracted driving guidelines in place for 15 years since the advent of its OnStar system, noting that the technology in question has also helped the automaker save lives through automatic crash detection and calls to 911.