2016 Odyssey Ex-l 4dr Mini-van 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's Acura NSX masterstroke: building the factory in Ohio

When Honda announced it was going to build its NSX supercar in Ohio instead of Japan, it caught everybody in the industry by surprise. No one expected this proud Japanese company to build its most technologically advanced sports car anywhere but in its home country. Now Honda has a supercar production facility in rural Ohio that would be the envy of any Formula One team. The people at Honda call it the PMC, but its official name is the Performance Manufacturing Center. It's a building that started out as a shipping facility for suppliers, but Honda invested $70 million to transform it into a showcase facility that will build the NSX. Honda benchmarked the assembly operations at Ferrari, Lamborghini, McLaren, and Bentley before work began on its facility. The 200,000 square-foot building will also double as a customer reception center – Honda will open the doors for customers to come see their car being built. It's also going to offer them high-speed test drives at the gigantic Transportation Research Center just down the road. No one expected this proud Japanese company to build its most technologically advanced sports car anywhere but in its home country. Inside, the layout is wide open and well lit. There are no stripes or lines on the floor and none of the different departments are walled off. This creates a more welcoming appearance and lets you get a comprehensive view of the entire process at a glance. And with an eye towards future lessons learned, most of the equipment is of a modular design that can be easily reconfigured or moved. The body shop and paint shop are enclosed by glass walls so that anyone can see what's going on inside. And while you'll see some automation here and there, the idea was to achieve a blend between man and machine, not to try and automate everything. This is a low-volume facility with production targeted at only eight to ten cars a day. The plant runs four days a week with one ten-hour shift. Don't expect to see rows of new NSXs parked on any dealer's lot. The car will only be built to order. Honda is obsessed with ensuring the NSX is built to the most exacting quality standards. The plant people pored over the JD Power Appeal study to determine what supercar customers care about the most, then looked at which aspects of that directly tie into manufacturing. They developed their quality control strategy with three goals in mind. First, they wanted to build everything right the first time with no adjustments.

McLaren F1 boss says team will dethrone Mercedes

Motorsports Honda McLaren Mercedes-Benz F1 mercedes-amg