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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

2017 Honda Ridgeline: A sleeper or a snooze?

Ah, yes... "Baby Steps," an expression that describes gradual improvements in what preceded. Overused for sure, but it clearly describes Honda's approach to the 2017 Ridgeline. Now that the news embargo is over we will be seeing a slew of preliminary road tests. Time to dig a little deeper, examine Honda's thinking and to see where Honda might go with this new truck. Honda set a number of goals with the new Ridgeline: 1) Sell more trucks. 2) Appeal to current Ridgeline owners who are ready to trade for a new truck. 3) Sell more trucks. 4) Expand their market share by attracting new buyers who hated the styling of the old Ridgeline. 5) Sell more trucks. 6) Convince skeptics that the Ridgeline is indeed capable of doing truck tasks. 7) Sell more trucks. My take is that this new Ridgeline is about 80 percent there; as the saying goes, "Close but no cigar." I'm really curious as to how this truck might evolve. There have been rumors that a regular cab model with a long bed may be in the works. Will we see it? Who knows — but by having such a model available, it would go a long way in terms of convincing (some) critics who say it's nothing but a "Pilot with a bed." Then there's the "youth market." Honda has gone on record saying they're not interested in courting them; a huge mistake in my opinion. Hopefully they'l re-think that and offer a legit off-road model with all the requisite goodies like more ground clearance, 2-speed transfer case, skid plates, tow hooks, larger all-terrain tires —5 of them, meaning no temp spare tire! It doesn't have to be a rock-crawler, but at least give it more capability to be considered an alternative to the 4x4 competition. Another area that needs to be re-thought is that Honda is offering seven trim levels. That's crazy. Most of them are so close to one another that it makes decision-making difficult. Cut it back to three of four trim levels, max. Makes life much easier. But yes, I think this truck, even as it stands, will be a sleeper in its segment and will do reasonably well in terms of sales. I think truck customers have seen and gotten used to the old Ridgeline, and have found — for what it was intended to do, it's really a pretty good truck. This new one certainly builds upon that — and it's no longer ugly. That's all good in my book. Related Video: Image Credit: Honda Honda Truck open road

Honda adds tech to 2016 CR-Z, no powertrain upgrades

Rumors suggest that the next-gen Honda CR-Z could finally become a real performance machine by dropping the hybrid setup in favor of a detuned version of the European Civic Type R's 2.0-liter turbocharged four-cylinder. We aren't there yet, though, and for 2016 the wedge-shaped model instead receives a styling upgrade and some new tech. However, the hybrid powertrain is still exactly the same. As previewed by the Japanese version earlier this year, the 2016 CR-Z receives a revised face with a reshaped grille. The front diffuser now slashes through the lower air dam to create triangular niches for the foglights. At the back, a redesigned bumper further echoes the nose's styling. Honda's designers also tweak the interior by switching to an electric parking brake. This might seem minor, but because there's no longer a lever, a center console with an armrest can take up the open space. In addition, drivers can enjoy better infotainment from a standard, seven-inch Display Audio system. For the EX trim and above, the screen is used for the company's LaneWatch tech, too. Moving up to the top-spec EX-L adds navigation and heated leather seats. Even with the powertrain the same, the 2016 CR-Z might drive a little better. Honda's engineers thicken the front stabilizer bar a hair and widen the rear track by 0.4 inches. The brake discs are also now 11.1 inches at the both ends, versus 10.3-inches at the front and 10.2 inches at the back previously. For 2016, Honda revises the trims to LX, EX, and EX-L, but prices jump slightly. A base model now starts at $21,130 (with the $835 destination charge) versus $20,965 last year (with $820 destination). Perhaps these upgrades are enough to goose CR-Z sales because through September the model is down 25.1 percent with a volume of just 2,205 units. Related Video: Design Updates, Enhanced Tech and New Higher-Level Trim Make the Fun and Efficient 2016 CR-Z Hybrid Sport Coupe More Stylish and Feature Rich • New styling, inside and out, and new line-topping EX-L with standard navigation • New available features include 7-inch Display Audio, Smart Entry and Push Button Start/Stop, Electric Parking Brake and Honda LaneWatch™ • New Honda accessories options TORRANCE, Calif., Nov.