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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.

Toyota, Lexus will offer low-cost automated braking system

First, a technology gets better, then it gets a lot better, then it gets less expensive, then it gets a lot less expensive. Advanced driver safety and convenience systems are about to make that last step thanks to Toyota. Centered around a pre-collision braking system, there will be three suites of driver aids known as Toyota Safety Sense C (TSS C) for compact cars, Toyota Safety Sense P (TSS P) for midsized and premium cars, and Lexus Safety System+ (LSS+) for the luxury brand. TSS C pairs a camera with laser radar to provide a pre-collision system that prompts the driver to brake if it detects an impending accident, and can supply additional braking force and automatically brake between seven and fifty miles per hour. There are also Lane Departure Alert and Automatic High Beam. TSS P pairs a camera with more precise millimeter-wave radar. Starting with the three functions in TSS C, it adds pedestrian pre-collision capability and adaptive cruise control. This one will be available first, coming on the new RAV4 Hybrid and Avalon. TSS - either C or P - will expand to three more vehicles by the end of the year. The wallop is in the price: TSS C will be a $300 option, TSS P will cost $500. Compare the Ford Fusion SE, for instance - it's Driver Assistance Package comes with Lane Departure Warning, Automatic High Beams, it has Lane Keep Assist, Blind Spot and Cross Traffic Detection that neither TSS has, but doesn't have any autonomous braking feature. It costs $1,200, but requires you to add the Technology and Luxury Packages for a total price of $3,165. If you want Autonomous Cruise Control, that's another $995, for $4,160 in total. Instead of $300 or $500 on the Toyota. Lexus' LSS+ will come first on the new RX then spread to four more models by the end of this year, and cost between $500 and $635 to add as an option. It also uses a camera and millimeter-wave radar for its vehicle and pedestrian pre-collision system, lane departure warning and lane keep assist, automatic high beam, and auto cruise control. The similar package on a BMW X5, with no pedestrian component, is $1,200. Toyota says both safety suites will eventually be on "nearly all" of it products and all trim levels by the end of 2017.

Toyota unveils two new small displacement engines

Toyota introduced a pair of brand-new engines in Japan today, that it says will eventually spawn 14 different variants by 2015. Where these two engines stand out in today's world, is that neither mill boasts direct injection, and both are naturally aspirated.
The larger of the two is a 1.3-liter, while the smaller engine, a 1.0-liter, was developed in collaboration with Daihatsu. What makes these two unique is that they both use the Atkinson cycle. Now, we aren't going to bore you by explaining just what this is - there's Google for that. Suffice it to say, Atkinson engines are highly efficient, but that efficiency comes by sacrificing power. That's why they're so popular in hybrids, which can offset the power losses.
This focus on fuel efficiency extends throughout the new engines, which also benefit from tweaks like a cooled exhaust gas recirculation system and a trick intake port, while the 1.3 employs Toyota's iE variant of variable valve timing. Both engines can be fitted with stop-start tech. According to Toyota, when fitted with stop-start the 1.3 should provide around a 15-percent bump while the 1.0-liter will increase economy around 30 percent, when they arrive on the road.