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Toyota to buck engine downsizing trend, may go larger and turbo-free

Turbocharging isn't really Toyota's specialty, and the Japanese automaker isn't being shy about acknowledging it. Koei Saga, a senior managing officer in charge of drivetrain research and development, says that eschewing turbos and increasing displacement of engines using the Atkinson cycle can produce better power gains without sacrificing fuel economy, Automotive News reports.
Toyota is investing heavily in larger-displacement Atkinson-cycle engines in addition to turbocharged engines, but Saga doesn't think the automaker will use turbocharging across many product lines. He apparently remains unconvinced that the technology "makes the world better."
In Toyota's eyes then, Atkinson cycle engines do make the world better, and here's how. Their pistons complete four processes - intake, compression, power and exhaust - in one revolution of the crankshaft, and the power stroke is longer than the compression stroke. Traditional Otto cycle engines require two crankshaft revolutions to accomplish those same four operations and have equal-length compression and power strokes. Atkinson cycle engines are more efficient, but less power dense, though increasing displacement can offset that shortfall.

Japan's government gives hydrogen vehicles a big boost

The Japanese government is really paving the way for hydrogen fuel cell technology on its roads. Japan's Ministry of Economy, Trade, and Industry is changing regulations on fuel tanks to make hydrogen cars more appealing to drivers, which should help put the country ahead of others in the race to develop a viable H2 fleet. Japan is raising the allowed pressure of hydrogen tanks from 700 atmospheres to 875, which has the effect of increasing driving range by 20 percent. This move puts the country in line with others with high-pressure fueling regulations. Japan is also in talks with the United Nations and the European Union to streamline inspection rules to make it easier to export Japan's fuel-cell vehicles. Toyota premiered its hydrogen-powered FCV Concept at the Tokyo Motor Show last year and plans to release a production version as early as next year. Honda also plans to build its own fuel-cell cars for 2015, and it debuted its FCEV Concept at last year's Los Angeles Auto Show. Nissan is sending mixed messages on hydrogen, both questioning the availability of a refueling infrastructure and working on developing the vehicles. In Japan, a relatively small country, increasing the range of fuel-cell vehicles makes creating a usable infrastructure a bit less daunting. Will hydrogen-fueled electric cars see the same sort of success as Toyota's Prius hybrid or battery-powered EVs? Only time will tell, but we can keep our fingers crossed that it will, and that the popularity spills over beyond Asia. Featured Gallery Toyota FCV (Fuel Cell Vehicle) Hydrogen Concept View 24 Photos News Source: Nikkei via Green Car Reports Government/Legal Green Honda Toyota Hydrogen Cars charging station infrastructure fcev fcv

2.1 million vehicles recalled again over faulty airbags

Fiat Chrysler Automobiles, Honda and Toyota will recall 2.1 million vehicles to fix faulty airbag modules "after the manufacturers' original attempts to fix the defects proved ineffective in some vehicles." These vehicles had all previously been recalled, but the National Highway Traffic Safety Administration found that the airbags could still potentially malfunction. This recall will cover Acura MDX, Dodge Viper, Jeep Grand Cherokee, Honda Odyssey, Pontiac Vibe, Toyota Corolla, Toyota Matrix and Toyota Avalon models made in the early 2000s. NHTSA has reportedly received about 40 reports of airbag deployment in such vehicles, even though the vehicle had not been involved in a crash. Roughly one million of these same vehicles, all from Honda and Toyota, are also subject to recalls due to faulty Takata airbag modules, though this particular recall is for "an electronic component manufactured by TRW" that is separate from the actual airbags from Takata. According to NHTSA Administrator Mark Rosekind: "This is unfortunately a complicated issue for consumers, who may have to return to their dealer more than once. But this is an urgent safety issue, and all consumers with vehicles covered by the previous recalls should have that remedy installed. Even though it's a temporary solution until the new remedy is available, they and their families will be safer if they take the time to learn if their vehicle is covered and follow their manufacturers' instructions. A hassle is much better than a family tragedy." If you're the owner of an affected car, expect to hear more from the official automaker and government channels in short order. In the meantime, we'd suggest getting your car checked and fixed at your local dealer. The official statement and recall information can be found below. Previously Recalled Vehicle Remedies Not Working as Designed; NHTSA Announces Follow up Recall of 2.12 Million Cars and SUVs Saturday, January 31, 2015 Contact: Gordon Trowbridge, 202-366-9550, Public.Affairs@dot.gov WASHINGTON – U.S. Transportation Secretary Anthony Foxx announced today the recall of more than 2.12 million Acura, Dodge, Jeep, Honda, Pontiac, and Toyota vehicles for a defect that may cause airbags to deploy inadvertently. The recalls will provide vehicle owners with a new remedy after the manufacturers' original attempts to fix the defects proved ineffective in some vehicles.