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Honda Odyssey Hybrid greens up your minivan

Almost neglected completely at the Honda press presentation at the Tokyo Motor Show today was what could be a true game changer. Lots of people drive minivans. Lots of people like hybrids. There are even some hybrid minivans for sale in Japan. But Honda has never offered its popular Odyssey premium minivan with a gas-electric powertrain. That's about to change. Too bad this fact was not mentioned at all during the press conference. The hybrid Odyssey was on the show floor, though, and a press pack distributed by Honda says that the minivan will have an updated dual-motor Sport Hybrid i-MMD powertrain "for outstanding environmental performance and powerful acceleration." Honda also says that this is the first time is has put the IPU (the Intelligent Power Unit, made up of the battery and Power Control Unit) under the front row seats. Overall, the powertrain update offers a, "new hybrid driving experience," Honda says, and that now, "the Odyssey Hybrid makes minivan travel more enjoyable than ever." The van also seems to be of a high specification, with plush seats, dark micro-fiber decorating the dash and forward areas, and captains chairs that look primed for napping. Hauling your family the green way comes with some creature comforts, it seems. Honda isn't any details about the environmental benefits of putting a hybrid powertrain into the Odyssey, but when the rumor of this vehicle first appeared, there was talk of a 50-percent reduction in fuel use. For a number of reasons - most important being that the American and Japanese Odysseys are very different vehicles – it's unlikely that a hybrid Odyssey will be available in the US any time soon. Featuring updated SPORT HYBRID i-MMD for outstanding environmental performance and powerful acceleration The most comfortable environment possible for transporting a large number of people. In fulfillment of this concept, the Odyssey premium minivan brings together a generously roomy cabin, distinctive styling, and an exhilarating yet steady driving experience. And now the Odyssey will also be available as a hybrid vehicle. Featur- ing a new power control unit with a compact and concentrated structure for outstanding power density, the innovative dual-motor SPORT HYBRID i-MMD hybrid system offers both outstanding environmental performance and the powerful acceleration of an electric motor.

Honda Clarity goes on sale in Japan, but only 200 units a year

Honda has officially started leasing its Clarity hydrogen fuel cell vehicle to select customers in Japan, and the sedan should arrive at a few dealers in California late in the year. Once the model is available in the US, expect the Clarity to be the natural challenger to the Toyota Mirai FCEV. The Clarity boasts an electric motor with 174 horsepower and 221 pound-feet of torque. In Japan's JC08 test, Honda claims the sedan can travel the equivalent of 466 miles, but that evaluation is more lenient than its US equivalent. The automakers expects the sedan to receive an EPA-estimated driving distance of over 300 miles. Prices in Japan begin at the current equivalent of $67,800. However, examples here should retail for around $60,000 and lease for under $500 a month. The Toyota Mirai is similar to the Clarity in major categories, including an EPA range of 312 miles and leases for $499 a month. The two of them should have quite a fight. Honda plans to limit Clarity production to 200 units in Japan for the first year, and only government agencies or businesses can lease them there. After the company collects impressions from these clients, it intends to make the sedan available to individuals. The decision only to lease the Clarity at first evokes the early days at of electric vehicles when companies like General Motors used the strategy to get the EV1 to customers. One thing that could give Honda the edge in the upcoming hydrogen fuel cell battle is its history in the market. The company first offered them with the FCX and later followed up with the FCX Clarity. By this point, the automaker should be well acquainted with the process. Related Video: Honda Begins Sales of All-new Clarity Fuel Cell - Clarity Fuel Cell realizes the world's top-class cruising range among zero emission vehicles of approximately 750 km - TOKYO, Japan, March 10, 2016 - Honda Motor Co., Ltd. today began sales in Japan of its all-new fuel cell vehicle (FCV), the Clarity Fuel Cell. Striving to realize full-fledged popularization of FCVs, Honda created Clarity Fuel Cell as an FCV featuring both a high level of practicality that represents the "universal value" of an automobile and "cutting-edge appeal" that is suitable for a vehicle that is at the forefront of the times. Clarity Fuel Cell is the world's first*1 five-passenger sedan type FCV, realized by making the fuel cell powertrain more compact using original Honda technologies and fitting it entirely under the hood of the car.

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