Toyota’s mini vehicle specialist, Daihatsu, has developed e:S (energy saving) technology that is set to be at the heart of the production of future motor vehicles.
As part of the process of development, it overhauled all aspects of the engine, transmission and body structure in an effort to maximise energy efficiency – and in the process it achieved an almost 40 per cent increase in fuel efficiency compared to the Mira 2WD/CVT.
Among the features of the new technology are:
- An engine with maximised combustion efficiency and minimised energy loss with improvements including the use of an i-EGR system; and an electronic throttle body made of a lightweight resin.
- Thermal management including an improvement of the air flow route and a decline in air intake volume.
- A continuously variable transmission with higher power transmission efficiency. The power transmission efficiency has been increased thanks to eight improvements such as a high efficiency oil pump and the lowering of the CVT control pressure.
- A streamlined shell body with weight reduction achieved by redesigning every interior part.
- Lower running resistance including low rolling resistance tyres.
- A pre-stop idle reduction function that applies a brake and stops the engine when the vehicle is travelling at 7km/h or less.
The technology will be introduced for the first time in a fuel efficient vehicle scheduled to be released in September this year that will achieve 71mpg.
