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Mazda officially hints MX-30 could get a rotary range-extender

Mazda recently penned a paean to itself celebrating 100 years in business. This, naturally, meant the document also served as a love letter to the rotary engine, since, "The joy of driving, lightweight design and the rotary engine [are] three elements that define Mazda’s DNA." One of those elements has been AWOL for eight years, since the end of RX-8 production. After years of rumor feverish enough to impress Slenderman, two years ago Mazda announced it was prepping a rotary range-extender engine for a model to debut in 2020. Here we are in the anticipated year, and we still don't know anything else about that vehicle — or perhaps we do. When Mazda debuted the MX-30 battery-electric crossover in Tokyo last year, it bore an e-SkyActive powertrain with a 35.5-kWh battery sending current to an e-motor on the front axle producing 141 horsepower and 195 pound-feet of torque. With a range of around 130 miles on the European cycle, even though the crossover was meant for markets like Europe and Japan, almost everyone chimed, "This would be perfect for that range-extender engine." The automaker has hinted at that very thing for its centenary celebration. In a paragraph touching on alt-fuel RX-7 variants, the Mazda press department wrote, "Later, the company developed a prototype Mazda2 EV with a small single-rotor engine used as a range extender. A similar system could find its way onto the Mazda MX-30, a brand new battery electric crossover SUV arriving at dealerships this year." The word "could" didn't make the leap from the printed page into the video translation of the presser, a Mazda video on "The Dream Engine" ending with footage of the MX-30 rolling under the caption, "Mazda MX-30 with rotary range extender." When asked, Mazda's head of R&D in Europe explained the battery size and resultant range with wheel-to-well considerations that factored energy input and emissions output from making the battery to exchanging the battery after 100,000 miles of driving. Since the carmaker doesn't deem the pure-electric MX-30 suited to the U.S., the question bubbling beneath the latest news is whether this revised model with more range could make it here. Given a suitably sized fuel tank that could power the little people mover beyond 150 miles on U.S. roads, and a fair price, we suspect there'd be a great deal of interest. Now, Mazda, about that rotary-powered RX-7 ... Related Video:    

10 automakers shack up in Detroit hotel to talk Takata airbags

Since Takata has decided not to take the lead concerning potential issues with its airbag inflators, the automakers have. Perhaps that's unsurprising, since it's the automakers, not Takata, that will take a beating on the dealership floor if consumers decide its models are a health hazards. The Detroit News reports that Toyota, Honda, General Motors, Ford, Chrysler, Mazda, BMW, Nissan, Mitsubishi and Subaru met in a hotel conference room near the Detroit Metropolitan Airport last week to sort out a way to understand the technical issues involved. So far, faulty airbag inflators have been ruled the cause of five deaths and 50 injuries around the world, but neither Takata nor investigators understands exactly why the inflators are malfunctioning. The National Highway Traffic Safety Administration recently asked Takata to issue a national recall, Takata declined, citing a minuscule failure rate and the fact that it's still investigating the issue. Toyota and Honda then made an industry-wide appeal for "a coordinated, comprehensive testing program" that would pinpoint the problem inflators and get them replaced, and that's what the Detroit meeting was about. Numerous issues, however, will make this a long row to hoe: simply getting the parts to replace the nearly 20 million inflators in cars recalled around the world so far - even working with other suppliers - will take a years, but more importantly, no one knows if the replacement inflators currently being installed will suffer the same issue. Answers will hopefully come quickly with Takata, the ten automakers and NHTSA all independently investigating the problem.

Mazda development chief discusses future rotary platform

The switch can again be flicked from "The Rotary Engine is Doomed" to "The Rotary Engine Lives!" Mazda is re-tooling the once nearly forgotten rotary to work as a range extender for hybrid vehicles, with a chance for it to do even more than that. The latest information sounds rather promising for those still holding out a candle for the rotary. Mazda's powertrain development chief, Ichiro Hirose discussed future rotary plans with the Australian Drive at the CX-30 crossover's launch. Hirose told Australia's Drive that Mazda is currently working with a very flexible and efficient rotary hybrid platform that doesn't necessarily come with the heavy emissions and fuel consumption baggage the rotary engine has earlier been saddled with. Hirose calls the rotary-based solution "XEV," referring to its adaptability. "It has the generator function and also it can be used to provide the drive force to give you traction. [...] Because the rotary engine is compact in terms of its packaging size [and] if we should choose to do so we can have the generator, rotary engine and electric motor all in one [driveline] because of the small packaging." The result is an electrified platform that could be made to work as a mild hybrid, series hybrid or a battery electric vehicle with a rotary range extender (if given a plug), depending of the required implementation. It's as if Mazda had a slider to adjust the balance of using a rotary engine and using electric power, to make the platform more of a jack-of-all-trades. Hirose explained: "If you reduce the other way around it could be a pure battery-electric, using really the rotary engine as a range extender and, according to the balance, you can even provide something akin to the series hybrid that is providing the drive force. [...] So, we are looking at a wider coverage and scope. Based on this architecture it allows us to do that, to explore the huge range of applications we can have with the rotary." The platform would also be flexible when it comes to meeting various stringent emissions standards. To be able to sell XEV-based vehicles globally would mean introducing a certain setup for one region and one for another, keeping in mind when the rotary power would kick in and how. While Hirose keeps the question open whether these vehicles would make it for sale in the United States, he says Mazda would be able to make them pass U.S regulations. "I'm just saying that — theoretically — if we were to introduce it in the U.S.