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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.

Mazda leads Consumer Reports' latest Brand Report Card Rankings

The latest automaker brand report cards from Consumer Reports are in, and there are quite a few changes for 2021. At the very top of the charts sits Mazda, up three spots over last year, followed by BMW and Subaru to round out the top three. It's interesting to note that mainstream brands (non-luxury in CR-speak) don't seem to be at a disadvantage in CR's rankings, with five of the top 10 spots. In addition to Mazda in first and Subaru in third, Honda, Toyota, Chrysler, and Buick were the other high-ranking non-luxury marques. The ratings are derived from "a combination of predicted reliability, and owner satisfaction based on member surveys, and CR’s hands-on analysis" and also includes safety features and crash test scores.  At the very bottom of the list sit Mitsubishi, Land Rover and Alfa Romeo. "Our brand rankings don't just look at how models perform on our test track, but the broad picture of vehicle quality," said Jake Fisher, Senior Director of Automotive Testing at Consumer Reports. "Fortunately, consumers will find they have many options that are safe, enjoyable, and reasonably priced." The biggest jumps in the brand report card rankings come from Chrysler, Buick and Honda, which each moved up five spots compared to last year's rankings. The news wasn't nearly as good for Lincoln, which fell an alarming 15 spots this year, Genesis, which fell 13 spots, or Kia, which fell 10 spots. Related Video:

Mazda's Apple CarPlay and Android Auto retrofit costs $199 plus labor

In relation to the rest of the market, Mazda was a bit behind with introducing Apple CarPlay and Android Auto to its model range, but it's trying to make up ground. But now, vehicles equipped with Mazda Connect from the 2014 model year and newer are eligible for a dealer-installed upgrade with smartphone integration capabilities. But it's not a free update. Mazda first introduced Carplay and Android Auto capabilities on the 2018 Mazda 6 and further extended the technology to the 2019 CX-9 and CX-5 utility vehicles. Now the company wants to make the smartphone interfaces available across the lineup. For $199, plus labor costs, owners can buy the upgrade. In addition to the updated Mazda Connect software, Mazda will also update hardware, including more powerful and faster-charging 2.1-amp USB ports. It is important to remember that Mazda's infotainment touchscreens do not function while driving, so even with Android Auto or Apple CarPlay, functionality will run through the command knob, buttons, or voice commands. For those interested in the upgrade, it is recommended to schedule an appointment for the upfitting. The service will take approximately two hours.UPDATE: A previous version of this story mistakenly said that Mazda's infotainment systems are not touchscreens. This is incorrect. The story has been updated accordingly.Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. 2018 Mazda6 Turbo first drive