The company also has a smaller, lighter hybrid unit on the way. Future plug-ins can also use their on-board generator for extra power.

Toyota has some major powertrain innovations on track for its vehicles starting in 2017, including a new 2.5-liter four-cylinder, two transmissions, and the next generation of the brand’s famous hybrid system. This tech can allow for a 10-percent boost in acceleration and 20-percent improvements in fuel economy. By 2021, the company targets that the updated drivetrains should be in 60 percent of the vehicles sold in Japan, the United States, Europe, and China.

The new powerplant entering the lineup is a 2.5-liter four-cylinder with direct injection that inaugurates Toyota’s new family of Dynamic Force Engines. These will be some of the most thermally efficient mills on the market at 40-percent when gasoline-fueled and 41-percent for hybrids. With less energy lost to internal friction and other losses, the engines will be able to send more horsepower to the wheels.

Toyota 2017 Powertrain Innovations
Toyota 2017 Powertrain Innovations

The firm is also introducing the new Multistage Toyota Hybrid System II that is smaller, lighter, and more efficient than the current version. According to Toyota, the latest innovation has better response from a stop. In plug-in hybrid applications, the on-board generator is able provide power to the wheels in EV mode, which provides an extra boost of acceleration.

The automaker’s next-gen engines will hook up to new eight- and 10-speed automatic transmissions called the Direct Shift-8AT and Direct Shift-10AT. Both of them will use new production techniques that will allow for less internal friction from the gear teeth. A new torque converter will improves throttle response, too. Toyota teases that the 10-speed shifts so smoothly that it’s “suitable for a premium rear-wheel-drive vehicle,” which might allude to the future Lexus LS.

This engine and transmissions will be just the beginning for a major onslaught of new Toyota drivetrains. By the end of 2021, the company will introduce 17 tunes of 9 engines, 10 versions of 4 gearboxes, and 10 iterations of 6 hybrid systems. The parts will help the automaker’s goal of reducing carbon dioxide emissions by 90 percent by 2050.

Source: Toyota

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