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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.

2021 Mazda3 Turbo First Drive | A fun luxury alternative

After seven years and an entire generation, there is finally another turbocharged Mazda3. But Mazda will be the first to tell you that it’s not, by any means, a successor to the rambunctious Mazdaspeed3, hence the lack of the name. Having driven it, weÂ’ll be the second to tell you the same: this is definitely not a Mazdaspeed3. ItÂ’s an altogether different beast, but itÂ’s still a good drive, and helps make the 3 a credible, budget alternative to an entry-level Audi or Mercedes. The turbocharged 2.5-liter engine is mostly the same one that Mazda has used in the CX-9 and turbocharged CX-5. It makes the same 227 horsepower and 310 pound-feet of torque on regular fuel (or 250 hp and 320 lb-ft of torque on 93 octane), but it's been tweaked to fit in the Mazda3Â’s smaller engine bay. The biggest change is the use of an air-to-water intercooler integrated with the intake manifold that reduces the amount of plumbing. As a bonus to helping the engine fit, Mazda notes that the overall intake piping length is shortened, which should improve responsiveness. While we canÂ’t speak to the improvement, the engine's response and power delivery is incredibly smooth. It feels about as close as a turbo engine can get to being like a supercharged or naturally aspirated engine. ItÂ’s easy to dial in exactly how much power you want, and thereÂ’s never an unexpected rush of turbo boost. All that torque is available low in the rev band, too, so it provides effortless acceleration, especially considering how much less mass the 3 has compared with its turbocharged crossover siblings. The smooth, relaxed acceleration is in keeping with the upmarket aim of the Mazda3 Turbo, and even compares favorably with powerplants from Audi and Mercedes. Those engines are similarly responsive, but deliver their torque in a fast rush, rather than the more gentle deployment of the Mazda. The turbo engine doesnÂ’t lose much in efficiency, either. Overall fuel economy drops by just 1 mpg from the naturally aspirated all-wheel-drive Mazda3s. The sedan gets 27 mpg overall and the hatchback gets 26. The engineÂ’s only real downside is that itÂ’s a little noisy under acceleration, emitting a low growl. Arguably the smooth power delivery takes away some excitement often associated with small, turbo cars, but as we said before, this isnÂ’t meant to be a Mazdaspeed successor. Like the engine, the drivetrain is closely related to other existing Mazdas.

Mazda marks its 100th anniversary with eight retro-styled limited-edition models

Mazda is turning 100 years old in 2020, and it's commemorating the occasion by releasing eight retro-inspired limited-edition models in its home country of Japan. Some of them might be available in the United States. Cars weren't initially on the company's radar. It started life as a cork manufacturer named Toyo Kogyo, and it branched out into the transportation sector when it introduced a three-wheeled, motorcycle-based pickup called Mazda-Go in 1931. Its first car, the R360, was unveiled in 1960 as a two-door four-seater whose tiny dimensions fell in line with Japan's strict kei regulations. It's the model Mazda's celebratory cars are inspired by. The range of special-edition models includes the CX-3, the CX-30, the CX-5, the CX-8, the Mazda2, the Mazda3, the Mazda6, plus hard- and soft-topped variants of the MX-5 Miata. They all feature an edition-specific white exterior and a burgundy interior, though the Miata and the CX-30 also get a red roof. The 100th Anniversary logo, which combines Mazda's current emblem with Toyo Kogyo's, appears on the wheels and on the front headrests, among other places. White and red was one of the combinations available on upmarket versions of the R360. None of the commemorative cars receive mechanical modifications, which is just as well. Paying homage to the humble R360 (shown in our gallery) would require replacing the Miata's 181-horsepower, 2.0-liter four-cylinder with an air-cooled, 356cc v-twin rated at 16 horsepower. It would need to be mounted in the trunk, too. The full 100th Anniversary range is on sale in Japan, and it will be available through March 2021. Mazda announced availability in other markets, like England, but it hasn't revealed if it will offer its commemorative cars in the United States yet due to "the global crisis." The 500 examples of the head-turning Miata 30th Anniversary introduced in 2019 were spoken for so quickly that the company allocated 143 additional units to our market, so we wouldn't be surprised to see the newest special-edition models land in showrooms in the near future. For context, the United Kingdom will receive 100 examples of the Miata, the CX-30, and the Mazda3. The Mazda6 and the CX-5 might join the roster later on. Pricing information will be published later in 2020. Related Video: