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Mazda patent shows rotary placement in complex AWD hybrid layout

If we were playing alt-powertrain Bingo, a recent Mazda patent application filed in Japan would be one or two letters from victory. What's exciting about the patent, discovered by Japanese outlet T's Media via Motor Trend, is that while it makes a case for an internal combustion engine of any configuration, one of the drawings showing a rotary engine. The wild bit is that the whole powertrain comprises the ICE, a transaxle, two tiny in-wheel electric motors turning the front wheels, a third electric motor in the driveline, a capacitor, a lithium-ion battery, and three inverters. Motor Trend parsed the mechanics, and the way it reads, Doc Brown couldn't have done a better job. The rotary engine at the front turns the rear wheels, but not directly. Instead of a flywheel on back of the engine, the drawing shows a 25-kW electric motor and an inverter, then a driveshaft running to the transaxle. Along the axis of the transmission tunnel in a normal car, between the inverter and the transaxle, lies a 3.5-kWh battery running at 48 volts. MT writes that the electric motor can add its output to the ICE output to drive the rear wheels, or the e-motor can turn the rear axle on its own. Up front, two inverters and a double-layer capacitor join the ICE in the engine bay. The capacitor and tiny hub motors in the front wheels run at 120 volts, a higher voltage than the rest of the electrical system, so that the small in-wheel motors can generate the same torque as a larger motor running at a lower voltage. The AWD system acts on-demand. Given the signal, the capacitors discharge their energy to the wheel motors, and recover energy from braking. When the capacitors are at full charge, they send excess regen energy to the lithium-ion battery; conversely, the battery can recharge the capacitors when they're low and the front hub motors need power. The patent explains that the ICE works with the rear e-motor to drive the rear wheels at low speeds, the front motors called on to "generate an output only when a large output is required in the high vehicle speed range." The rather complicated system is focused on providing the benefits of a hybrid system and all-wheel drive, but at lower weight than one would expect. A rotary serves due to its compactness, but one of the drawings shows an engine with a V layout. Hub motors get dinged for adding unsprung weight, hence the small motors here.

Here are your 2016 North American Car and Truck/Utility of the Year finalists [w/polls]

The 2016 Detroit Auto Show will kick off with the announcement of the annual North American Car and Truck/Utility of the Year awards, and the three finalists in each category have just been revealed. Following this announcement, the jury – which includes Autoblog editor-in-chief Mike Austin – will re-evaluate each candidate before casting a final vote for the winner. This year's finalists are: Car of the Year Chevrolet Malibu Honda Civic Mazda MX-5 Miata Truck/Utility of the Year Honda Pilot Nissan Titan XD Volvo XC90 The 23rd annual awards will be announced on the morning of Monday, January 11. For now, we want to know where you stand. Let us know which vehicles you think should win, by voting in the polls below. Chevrolet Honda Mazda Nissan Volvo north american car of the year NACTOY

Toyota Yaris iA, Mazda CX-3 sales show crossover formula isn't an automatic win

While 2017 was another watershed year for crossovers, in one interesting case, a crossover had its lunch eaten by its sedan counterpart. In the past year, Toyota sold nearly 36,000 Yaris iAs, a sedan that is identical to the foreign-market Mazda2 in everything but Toyota's ugly front bumper. In the same time frame, Mazda sold just over 16,000 CX-3s, a subcompact crossover based on the Mazda2. Not only that, but the Yaris iA saw an increase of around 8,000 units over 2016, and the CX-3 sold about 2,000 fewer units than in 2016. View 29 Photos There are a few reasons this is surprising. First of course is that the crossover market is surface-of-the-sun hot right now, so much so that primarily crossover-building brand Subaru saw its best sales year ever last year. Even Mazda's other crossovers, the CX-5 and CX-9 saw better sales in 2017 than in 2016. But on paper, the CX-3 has a number of advantages compared to the Yaris iA. The CX-3 has a larger 2.0-liter four-cylinder that makes about 40 more horsepower than the 1.5-liter engine in the Toyota. Also, while the cargo area behind the rear seats in the CX-3 is about one cubic foot smaller than the iA, it has the added flexibility of being a hatchback, and thus having more capability when it comes to large, bulky items. And of course, the CX-3 is quite a shapely machine compared with the awkward, angry-looking iA. That's not to say the iA doesn't have any of its own advantages. It gets 3 more mpg in the city and 6 more on the highway than the CX-3. It also costs roughly $3,000 to $4,000 less than a CX-3 and can be found at more dealers than the Mazda. But it's still surprising that a car, especially a sedan, can outsell a mechanically very similar crossover. Apparently the formula of adding more ground clearance and plastic fenders isn't foolproof. Then again, maybe it's not such a big deal to Mazda, since the CX-3's total sales were just over a tenth that of the Mazda CX-5. Related Video: