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Toyota takes i-Road tests to the streets of Tokyo

OK, here's where we think those road tests will start to get a little scary. Those super-narrow all-electric three-wheeled Toyota i-Road vehicles may have looked great sashaying through the towns of the French Riviera. But now? They're being tested in Tokyo. Hoo boy. The Japanese automaker says it'll start testing the i-Roads in the country's largest city on March 24 and will do so through early June. And while there will be some industry experts among the 20 participants, there will also be some regular folks who we hope won't find out the hard way how well those 660-pound, one-yard-wide vehicles perform in crash tests. In the meantime, we'll cross our fingers. The cool thing is that the i-Road now comes in five colors: blue, green, white, yellow and what looks like a magenta-fuchsia-type hue. Earlier this month, Toyota said it started testing the vehicles in Toyota City, Japan, as part of a broader program called "Ha:mo" where people link shared vehicles with public transportation systems (it stands for "Harmonious Mobility Network"). The three-wheeler was unveiled at the Geneva Motor Show early last year before getting the star treatment in a French Riviera-locale video. Check out Toyota's press release below and read our impressions of driving the i-Road here.

There's a familiar ring to this 1966 video of GM's hydrogen ElectroVan

"What we need is fuel cells that can run on a hydrocarbon fuel and air." It can be fun and educational to revisit the past as we look into the future. While we do have cars that plug in today, the first big batch of hydrogen powered vehicles is not yet arrived (but the Hyundai Tucson Fuel Cell CUV is leading the way). The idea of hydrogen as a promising future technology was also true in 1960s, when General Motors made a promotional movie for the ElectroVan. Turns out, the future then shared more than a little with the future now. As you can see in the short promotional video below for the hydrogen-powered ElectroVan, a modified 1966 GMC HandiVan, a big hurdle in the mid 1960s was the difficulty of obtaining hydrogen fuel. GM offered a possible solution at the time: "Hydrogen and oxygen are expensive and impractical fuels for a car. What we need is fuel cells that can run on a hydrocarbon fuel and air." Unlike today's hydrogen fuel cell cars, the ElectroVan used liquid hydrogen-oxygen fuel cells to get a range of between 100 and 150 miles. Not bad for the first hydrogen fuel cell-powered vehicle in the world. GM tested the ElectroVan on the GM grounds before sending it into storage and then to the company's heritage center. For another view to the past, this time with some focus on electric vehicles, take a look at a video from the 1994 Chicago Auto Show, also available below. Twenty years ago, the green vehicle hype was on the Toyota EV-50 electric car, the solar-powered Honda EVX (and a solar Honda racing car) and a hydrogen-powered Mazda Miata. The announcer's enthusiasm is contagious, but as we all know, none of these vehicles ever made it to dealerships. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. News Source: Chicago Auto Show, Bangshift via YouTube Green GM Toyota Technology Emerging Technologies Electric Hydrogen Cars Videos

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.