2023 Honda Ridgeline Rtl on 2040-cars

Auto blog

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

Honda lets us 'drive' the FCEV; PHEV with 40-mile EV range

Blue skies for our children. That's Honda's wonderfully Japanese/English slogan that it uses as a fresh shibboleth to describe the company's plan for the future. It's vague enough to be positive, positive enough to be corporate, and corporate enough to be repeated in presentations around the world. I've certainly heard it a million times. The 2015 Honda Meeting in Utsunomiya, Japan this week was, thankfully, held under a brilliant blue autumn sky, on Honda's R&D track filled with the roar of short test drives in the NSX hybrid and the deafening electric silence of the upcoming hydrogen fuel cell FCEV. But that wasn't all. The amount of technical information Honda offered to visiting journalists during the Meeting was nothing short of overwhelming, which is why I'm glad that Autoblog editor Seyth Miersma was along for the ride. We were both at the same event, but we paid special attention to very different things. You can read his take on the four-motor CR-Z EV and the NSX, among other things, here, and get my take on a bunch of Honda's green news below. Honda calls the FCEV the "ultimate clean performance" vehicle. Honda FCEV: A Short First Crack At Honda's "Ultimate" Vehicle Sure, I got to take a lap in the NSX, but the FCEV was my highlight of the event. This was the first time Honda has let outsiders test drive the upcoming fuel cell vehicle, which the company calls the "ultimate clean performance" vehicle and which is due in the US in next year after a launch in Japan in the spring of 2016. The bad news is that the entire length of the test drive was a measly kilometer, totally straight, with one U-turn at the half-way point. So, even though I went through the course three times (two more than originally scheduled), I can't really say I know how the car drives. What I can tell you is that there are two drive modes, normal and sport, with the main difference being that sport offers stronger regenerative braking and a bit quicker acceleration response. The higher regen level does not allow for one-foot driving, sadly. There's a blue orb that glows in the digital dashboard to indicate the power output of the fuel cell stack (not the motor), so even though the car is fairly quiet as you drive, there's some minimal level of connection between the driver and the "engine." Creature comforts include Honda's excellent LaneWatch and a glossy touch screen for the infotainment system.

Edmunds ranks the best used cars for 2013

When people ask us what car we would recommend for them, it's usually not easy to answer. To make a useful recommendation we must consider which of the numerous vehicle segments fits their needs best, and then choose one of the many vehicles offered in each segment. For some people, new cars don't meet their expectations of value, because they lose so much of it the moment they are purchased and driven off the dealer lot. For them, there's always the used-car market, where great deals can be found, but cars' histories of reliability and maintenance records - and perhaps that Certified Pre-Owned warranty - become ever-important factors playing into purchase choice.
To help out, Edmunds has done us the favor of assembling a list of the best used vehicles money can buy, covering model years 2006-2011, according to what it considers the most important criteria when shopping for used autos: reliability, safety, value and availability. That means unreliable, unsafe, super-expensive or limited-edition models don't appear on the list, but instead cars from each segment that are more likely to satisfy the general population.
There are some real goodies on the list, including but not limited to vehicles such as the capable Honda Fit, the cultish Honda Accord coupe (which can be had with a 240-horsepower V6 and a six-speed manual transmission some years), and the powerful Chevrolet Corvette. While Edmunds' choice of the Volvo C70 for best used convertible baffled us at first (not that it's a bad car), it redeemed itself by stating that the Mazda MX-5 still is an unofficial top choice if you don't require more than two seats.