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Mazda patents show rotary engine for range-extended EV

Two years ago, Mazda introduced a fascinating range-extended electric car called the Mazda2 RE Range-Extender. It took an electric Mazda2, and dropped in an itty-bitty 330cc rotary engine. It wasn't the rotary-powered sports car we had hoped for, but it seemed like a unique way to keep the quirky engine alive and kicking. But not long after the car's reveal, it seemed to disappear. Now the basic idea has resurfaced with a few modern updates in a couple of US patents. The first patent is pretty straightforward and describes a range-extended EV similar to the BMW i3. At the front is an electric motor driving the front wheels. At the back is an internal combustion engine that powers an electric generator. In the middle is a lithium-ion battery for storing and delivering electricity. It's the same set-up as that Mazda2. The second patent is for an engine start-and-stop system, but specifically for rotary engines. The system is designed to shut off a rotary engine when not needed, much as modern piston engines do. It also stops the rotor in a position that closes the intake port to ensure no fuel or exhaust emissions slip out through the intake tract. This is necessary since there are no valves in a rotary, and air and exhaust come through ports that are "opened" and "closed" by the rotor itself. The patent also describes the possibility of firing a spark plug after the fuel has been cut to eliminate any leftover fuel emissions. This system would theoretically improve a rotary engine's fuel economy and emissions significantly, which would be a boon as those are two of the rotary's major weaknesses. The rotary-engine patent also includes the same range-extended powertrain drawing as the first patent. It's there as a description of a possible application. And in such an application, where the rotary wouldn't have to run all the time, the system could take advantage of the rotary's inherent strengths. Weight can be kept low thanks to the engine's small dimensions, which should help in keeping the car sprightly and efficient. Rotaries are renowned for smoothness, too, so it shouldn't need too much refining and sound deadening, the latter of which adds more weight. The small size would also help with packaging, leaving more space for people, cargo, or possibly batteries. And since it has been patented, the company may be looking to bring the system to market.

Mazda builds 4-millionth Mazda3

To say that the Mazda3 is a vital product for Mazda would be one heck of an understatement. In fact, the model line accounts for about 30 percent of the manufacturer's sales. Fortunately for Mazda, they're selling well.
These days, the Japanese automaker is building the Mazda3 (known domestically as the Axela) in Japan, China, Thailand and, as of last month, in Mexico. The company's expanded global production capacity has helped Mazda reach four million units of the Mazda3 sold around the world since the first model was introduced over ten and a half years ago.
Over the course of that decade since its introduction in June 2003, Mazda has gone through three generations of Mazda3, the newest model benefiting from the company's Skyactiv technology and even encompassing a hybrid model in the Japanese Domestic Market.

Why a production Mazda Koeru won't be a Subaru Outback clone

No automaker has had a hit quite like the Outback Many have entered, few have won. The Subaru Outback is one of those automotive bogeys that competitors seek to imitate but never quite capture. Mazda is poised to change that, its CEO tells Automotive News, with a production version of the Koeru concept. We're torn on whether this attempt will be the one to do it, whether the proposed model is truly aimed at the Outback, or whether it's just another pale imitation destined for failure. While the ingredients are pretty basic – wagon-like shape, extra cladding, a smidge more ground clearance than a regular car – no automaker has had a hit quite like the Outback. Reasons include packaging issues, poor brand fit, and Subaru's seemingly unstoppable momentum in building all-wheel-drive archetypes. That hasn't stopped a bunch of companies from trying. And now for a list: Ford attempted with the Freestyle/Taurus X; note that that model no longer exists, having been replaced de facto by the Flex and the newly crossover-ified Explorer. Audi discontinued the A4 Avant and slapped the Allroad badge and some fender flares on to capture the affluent outdoorsy crowd, initially selling well but now down 40 percent since last year. The humpback Honda (Accord) Crosstour and Toyota Venza could also be considered Outback-apers, as both short-lived models took sedan bodies and added a hatch and optional all-wheel drive. Dodge got into this space a few years back with the Journey Crossroad trim level, but fake brush guards and black wheels do not an Outback make. Volvo has perhaps come closest with the XC70, a not-quite-crossover that it nevertheless brands like its other crossovers. It helps that the Volvo die-hard and the repeat Subaru buyer aren't too different. Most of these models no longer exist, and the ones that do haven't sold as well as Subaru's Outback so far this year. Even if you're generous and add all 96,718 Journey sales (and not just those for the Crossroad, which FCA doesn't break out separately) to V70/XC70, Venza, and Crosstour, it still doesn't equal the 136,227 Outbacks Subaru pushed through November of 2015. And, as Automotive News points out, Mazda hasn't sold that many crossovers so far this year (the number is 129,932 thanks to huge CX-5 numbers). So why is Mazda considering going after the hallowed Outback? First off, we're not sure that it is because there's the question of what tiny niche this vehicle would occupy. "It's a totally new car.