
Toyota announced today that they have developed a new fuel-saving engine valve mechanism, Valvematic, created by combining VVT-i (Variable Valve Timing-intelligent), with a new device that continuously regulates the intake valve lift volume.
"While conventional engines control air intake using a throttle valve, Valvematic adjusts the volume of air taken in by continuously controlling the intake valve lift volume and timing of valve opening and closing," Toyota explained in a statement. "This ensures optimal performance based on the engine's operational condition, thus helping vehicles achieve both high fuel efficiency and dynamic performance."
Specifically, Valvematic maybe able to improve fuel efficiency by 5-10%, reduce C02 emissions by 10%, and increase overall performance. Toyota said it will "introduce Valvematic shortly, starting with a new vehicle model featuring a 2.0-liter engine."
