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Honda patents engine with different cylinder displacements

A basic rule of engine design states that the displacement of a cylinder is equal to the engine's total displacement divided by its cylinder count. Honda, according to a recently surfaced Japanese patent, is looking to break that rule with an engine containing cylinders of different sizes. We've done our best to translate it from patent-ese. The idea is that different-sized combustion chambers give more flexibility when any combination of cylinders are deactivated, or rested. Because the different numbers can be combined in various ways, it provides more and smaller increments than would an engine with equal-displacement cylinders. Take a 2.0-liter four-cylinder, for example. Following the golden displacement rule, each of the four cylinders has a volume of 500 cc, giving displacement increments of 500 cc when any cylinder is deactivated. But suppose instead that the four cylinders displace 300, 425, 600, and 675 cc, respectively. This would give the engine 15 available displacements instead of just four, and the spacing between each option would be far less than 500cc. As a result, those different virtual displacements would provide more adjustment between power and efficiency than a cylinder-deactivation system can on a conventional engine. Honda's patent describes cylinders with equal bore size, with the displacement from cylinder to cylinder varying based on the crank throw radius – the longer the throw, the longer the stroke and the larger the displacement of that particular combustion chamber. The patent describes how the cylinder sizes would need to be arranged to spread the load on the crankshaft and presumably limit vibration that would be introduced by the different pulse magnitudes. If we're interpreting things correctly, the largest cylinder (the one with the longest crank throw radius) sits in the middle of the bank with the smaller ones alternating on either side as they decrease in displacement. This concept is described for multi-cylinder inline and V-type engines of various sizes. The patent was filed in March of 2014 and published in January of this year. Whether or not this arrangement will reach production is of course unknown, but the advantages in terms of both efficiency and power seem promising. Related Video: News Source: Japan Patent Office via Auto Guide Green Honda Fuel Efficiency Technology patent

What car should James Robertson buy to drive his famous 21-mile commute?

The Internet has been abuzz this week with the story of Detroit resident James Robertson, the 56-year-old factory worker who has walked some 21 miles to work for the last 10 years. The Detroit Free Press brought Robertson's story to the fore, helping an online fundraising campaign to generate more than $275,000 (as of this writing). The original goal was just $5,000, or about enough to replace the used Honda that died on Robertson back in 2005, and left him walking. So, newly flush with funds, what's the perfect car for Robertson to buy? Let's look at the specifics of his situation, and try to pick out the best options. Here's what we know: Robertson's commute is (famously) 21 miles; he lives in downtown Detroit (for now) and seems pretty humble, so something very flashy is probably out; former Honda aside, his ties to the city (and statements about being a Ford fan) seem to indicate a Detroit Three company product is best; he's a single guy with a girlfriend; he's got to deal with Michigan weather, and the sometimes fickle snow removal processes in The D. Here are some choices: Ford F-150 Robertson is on record as being a Taurus fan, and after a decade of walking I've no doubt that the big sedan would offer a cozy respite. Still, as a car guy and a student of the industry, I'd have a hard time recommending a sedan so clearly in need of replacement. Especially when The Blue Oval has such great stuff within the rest of its roster. The 2015 F-150 seems almost perfect for Robertson. Opting for either of the new EcoBoost V6 engines should help keep fuel bills in reasonable check, while healthy ride height and four-wheel drive will get him to work on time even during the snowiest of snow days. Better still, with a fat options sheet and car-like ride quality, Robertson can have just about every amenity he might want, in a package that won't disrespect his blue-collar roots. Chevrolet Colorado You guys saw this one coming, right? The smaller footprint of the midsize Chevy pickup, relative to some of the other options here, should be an advantage for urban parking and driving. And again, 4x4 is an option for the nasty weather, the running costs should stay pretty low and there aren't many tech/luxury features that can't be had in-cabin. I'd go ahead and splash out on the Crew Cab bodystyle, too, just in case Robertson feels like starting a carpool.

2016 Honda Civic pricing leaks, starts at $18,680 [UPDATE]

UPDATE: Alright, we made a mistake. Turns out this "leak" was actually just a mockup done by a CivicX forum member, and we totally went along with it. Sorry, folks. You'll have to wait a little longer for your hot Civic pricing news. The tenth-generation Honda Civic ranks among the most anticipated new models on the way this year, especially after seeing the concept for the design at the New York Auto Show. Now, we might be getting an idea of what the compact actually offers from two leaked spec sheets. According to info posted on 10th Civic Forum, the 2016 Civic Sedan LX starts at $18,680, which is just $190 more than the same trim for the 2015 model. For that, buyers reportedly get standard features like LED running lights, LED taillights and a five-inch touchscreen infotainment system. The SE (Sport) trim upgrades the suspension for $19,995. The EX includes full LED headlights for $21,200, and the EX-L adds leather upholstery for $22,885. A separate sheet purportedly details the coupe, which comes standard with the sport suspension. The base price is the same as the sedan. The EX starts at $20,145, and the EX-L is $22,870. Oddly, both of these sheets only mention the CVT, rather than the previously announced six-speed manual, but they do detail two engines. There's a 2.0-liter four-cylinder with 165 horsepower and 145 pound-feet that can reportedly get to 60 miles per hour in 7.9 seconds. Fuel economy is listed here as 40 mpg highway, 34 mpg city, and 35.5 mpg combined. There's also the 1.5-liter turbocharged four-cylinder, and this document suggests that it has 167 hp and 191 lb-ft and can get to 60 in 7.6 seconds. Mileage is shown as 41 mpg highway, 35 mpg city, and 37.5 mpg combined. Both mills are pretty good upgrades over the 143 hp and 129 lb-ft from the current 1.8-liter four-cylinder in the Civic. As leaked documents, we can't be entirely sure how valid any of these numbers are, so take them with a grain of salt for now. In any case, the 10th-gen Civic is supposed to hit dealers this fall, and you can read the full specs in the gallery below.