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Honda recalling small number of Accord, CR-V models

This latest recall may not be a very big one, but it does strike us as an important one. Issued by Honda, the recall affects the 2014-15 Accord (specifically those equipped with the four-cylinder engine) and the 2015 CR-V, but only 137 of them. Those 137 vehicles, however, will need to have their short blocks replaced. What is a short block, you ask? Nope, it's not a chopped-down version of a big block: it's the engine block itself plus all its internal components, but short of any appendages that make it run. (That'd be a long block.) The problem, according to the manufacturer's statement below, stems from bolts – specifically the connecting rod bolt – that may have been improperly torqued during assembly. There's a system that's supposed to check that, but Honda reports that it "may not have identified improperly torqued bolts in a specific group of engines." Hence the recall. Owners of those few vehicles affected can expect to hear from the manufacturer to arrange bringing their vehicle into their local dealership to have the engine replaced, free of charge. Statement by American Honda Regarding Connecting Rod Bolt Recall: 2014-2015 Honda Accord 4-cylinder; 2015 Honda CR-V Mar 9, 2015 - TORRANCE, Calif. - 137 model-year 2014-15 Accord 4-cylinder and 2015 CR-V vehicles affected in the U.S. - Engine short block will be replaced in affected vehicles, free of charge - No related crashes or injuries have been reported Honda will voluntarily recall 137 model-year 2014-2015 Accord 4-cylinder and 2015 CR-V vehicles in the United States to replace the engine short block, free of charge. During engine assembly, an automated system that verifies engine connecting rod bolt torque may not have identified improperly torqued bolts in a specific group of engines. An improperly torqued connecting rod bolt could come loose, leading to potential engine damage and stalling, which could contribute to a crash. No crashes or injuries have been reported related to this issue, which was discovered through a warranty claim review process. Honda is announcing this recall to encourage all owners of affected vehicles to take them to an authorized dealer as soon as they receive notification of this recall from Honda. Mailed notification to customers will begin in late-March. In addition, owners of these vehicles can determine if their vehicles require repair by going to www.recalls.honda.com or by calling (800) 999-1009, and selecting option 4.

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

Recharge Wrap-up: BYD unveils 60-ft electric bus, Honda sticking with hybrids in Europe

BYD has debuted a 60-foot electric bus at the American Public Transportation Association Expo in Houston, TX. The Lancaster bus, as it is called, has a 120-passenger capacity and can drive over 170 miles on a single charge. The articulated bus features low floors and no steps, thanks to in-wheel hub motors. BYD also displayed a 40-foot electric bus that drove the 1,500 miles to the show under its own power (recharging along the way, of course). Read more in the press release below. Honda says it will continue to sell hybrids in Europe, despite the fact that it has stopped selling the CR-Z and Insight due to slow sales. "Our focus at the moment is on our 1.6-liter diesel but we haven't forgotten about hybrid technology," says Honda Europe's Philip Ross. Honda will sell the next-generation Fit (badged as the Jazz) in Europe when it launches next summer, and will sell the next-gen hybrid version beginning in 2016. Honda sold 4,500 of the Jazz hybrid in Europe last year. Read more at Automotive News. XL Hybrids is selling its XL3 Hybrid Electric Drive System in California. The news comes after the California Air Resources Board issued an executive order allowing the aftermarket hybrid conversion for 2012-2014 Chevrolet Express and GMC Savana vans. The XL3 Hybrid regenerative braking conversion increases real-world mpg by about 25 percent. Read more in the press release below. NRG eVgo has finished installing 60 charging stations at the Sony Pictures Entertainment studio lot and offices in Culver City, California. The Level 2 chargers, which will be managed by NRG eVgo, allow employees to charge their EVs during the workday. An average of 90 EVs and PHEVs park at the studio headquarters every day, thanks in part to Sony Pictures' Alternative Vehicles Incentive program for its employees. Learn more in the press release below. Pennsylvania's Public Utility Commission will allow operators of EV charging stations to set prices based on kilowatt hour usage. This change ensures that drivers pay for the actual energy they use, rather than the time they spend charging, since different cars can charge at different speeds. Car Charging Group has already begun using the per-kWh fee structure at its charging stations throughout the state. Other states that allow kWh pricing are California, Colorado, Florida, Hawaii, Illinois, Maryland, Minnesota, New York, Oregon, Virginia and Washington. Read more in the press release below.