Toyota Supra Hardtop on 2040-cars

Auto blog

Toyota hydrogen vehicle visits CES, on sale in US in 2015

If there was ever any doubt that Toyota loves hydrogen vehicles, just listen to some of what Bob Carter, senior vice president of automotive operations for Toyota Motor Sales, USA, said today at the Consumer Electronics Show (CES) in Las Vegas: "Fuel cell electric vehicles will be in our future sooner than many people believe, and in much greater numbers than anyone expected." "Hydrogen works beautifully with oxygen to create water and electricity and nothing more." "This [hydrogen] infrastructure thing is going to happen." "I believe what I'm going to tell you about today is going to change our world." Sounds like love is in the air. In all seriousness, Toyota is incredibly bullish on the future of hydrogen as a part of the automotive landscape, and is now gearing up for the 2015 launch of its hydrogen sedan. The concept version of the car was shown for the first time at the Tokyo Motor Show last fall and is making its North American debut at CES today, alongside the still-under-camo engineering prototype. The reasons for Toyota's hydrogen confidence? The debut vehicle is supposed to be a "reasonably priced" car that has a range of 300 miles and a refueling time of about five minutes. Carter highlighted the engineering work that Toyota has done over the past decades to get the fuel cell system downsized while upping power output to over 100 kW. He also said the vehicle will have carry enough energy to power a house for a week, so company engineers are working on an export power supply device. The H2 Toyota sedan will start sales in California (the only state in the US where there are currently any hydrogen stations) next year. The automaker is working with the University of California Irvine's Advanced Power and Energy Program (APEP) to figure out where to build the next series of public hydrogen fueling stations. Today there are ten, but the model Toyota is using "is based on the assumption that owners want to reach a refueling station within 6-minutes" and shows that 68 stations would be able to serve around 10,000 hydrogen vehicles. 'Toyota Car of the Future' On Sale Next Year; Opens 2014 Consumer Electronics Show (CES) Reasonably priced hydrogen fuel cell electric targets 300-mile range, 3-5 minute fill-up LAS VEGAS (Jan. 06, 2014) – "We aren't trying to re-invent the wheel; just everything necessary to make them turn," said Bob Carter, senior vice president of automotive operations for Toyota Motor Sales (TMS), U.S.A.

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 announces new, more efficient powertrains for 60 percent of its vehicles by 2021

In the face of increasingly strict standards on fuel economy and CO2 emissions, Toyota announced today that it's introducing a new hybrid system, a new 2.5-liter direct-injection inline four-cylinder engine, and two new transmissions – an eight- and a 10-speed. The development of all of these components will be based around the Toyota New Global Architecture, or TNGA. Development of the systems has moved forward and the new powertrains will find their way into vehicles starting next year. TNGA, like Mazda's Skyactiv technology, is a complete design philosophy that focuses on more than just a clean or efficient engine. The first vehicle to deploy the TNGA platform was the current, fourth-generation Prius. With TNGA, Toyota focused on improving handling, ride, and braking performance. The new powertrains are meant to compliment this new platform by being both engaging to drive and fuel efficient. Since TNGA can be adapted for front-, rear-, or all-wheel-drive layouts, it's capable of underpinning a number of potential products. Toyota is arguably the leader in hybrid technology, and taking lessons learned in the development of the current Prius, the automaker has developed the new Toyota Hybrid System II, or THS-II, for rear-wheel-drive applications. Performance has improved versus the outgoing model, and Toyota says efficiency, especially at high speeds, has been improved. In addition, the system's use in plug-in vehicles has been improved. For the first time, the electric motor will be able to provide direct driving power, whereas before it simply acted as a generator. The new, naturally aspirated 2.5-liter four-cylinder, like the THS-II, has been designed around the TNGA platform. Most notably, the thermal efficiency of the engine has been improved. This means a higher output and improved exhaust and cooling. The new engine, which works in both traditional and hybrid applications, will proliferate through the Toyota and Lexus lineup. Toyota's two new automatic transmissions, like the new engines, are based on the TNGA system. That means a lighter and more compact design relative to similar transmissions. The 10-speed is intended for rear-wheel-drive Lexus products like the GS and LS. The tuning has been adjusted to improve response and smooth out shifts, though it's impossible to say how much it's been improved without getting behind the wheel.