Toyota is working on making every single one of its vehicles better and more fuel-efficient.
This development work is based on the Toyota New Global Architecture (TNGA), described by the company as a new approach to manufacturing automobiles, with the core aims being greatly improved product development and more competitive production sites.
Explaining the effect the TNGA has on its powertrains, Toyota stated: “To enhance driving performance and fuel efficiency while also giving vehicles more attractive styling and improved handling, Toyota is focusing on joint development of powertrains and platforms together to create a lower center of gravity, on making components lighter and more compact, and on applying unified design through modularization. By improving thermal efficiency in engines and energy-relay efficiency in transmissions, Toyota has increased the overall fuel efficiency of its powertrains by approximately 25 percent and overall power output by more than 15 percent. Also, by rethinking drive unit layout and making electric motors, inverters and batteries smaller, Toyota expects to improve the overall fuel efficiency of its hybrid vehicle systems by more than 15 percent. Toyota will begin introducing its new powertrain units this year, and will continue to develop innovative new hybrid systems, transmissions and engines.”
Other effects of this TNGA mindset has to do with the structure of the vehicles by increasing overall body rigidity by as much as 30 to 65 percent, and then further improve rigidity by joining body components using laser screw welding technology.
The new structures based on the TNGA is expected to be found under approximately half of its vehicles sold worldwide in 2020. Toyota will begin rolling out its new platforms with the launch of a midsize front-wheel-drive vehicle this year, the 2016 Prius, followed by specific new platforms for front-wheel-drive compact and large vehicles, as well as for rear-wheel-drive vehicles.