Toyota Yaris’ hybrid powertrain in detail
By Andrew, 07 Feb, 2012. 0 Comments
2012 Toyota Yaris Hybrid
Toyota designed its latest modern supermini – the new Yaris Hybrid – in such a way that its hybrid powertrain won’t reduce the space in the cabin and the boot. Toyota came up with this innovative compact version of Toyota’s Hybrid Synergy Drive system that is featured in bigger models like the Prius and Auris Hybrid. After some extensive research and development, Toyota was able to build an efficient, full hybrid system for Yaris with the use of a petrol engine and electric motor, giving a total power output of 99bhp (74kW). The system comes with a new 1.5-litre Atkinson cycle petrol engine that is 16.5kg lighter and is 10% more compact than the 1.8-litre unit used in Prius and Auris.
Major parts like the electric motor, power control unit and transaxle also became lighter and smaller. The motor size was reduced by 20% and the PCU by 12% when compared to those in Auris Hybrid. In addition, the transaxle has dropped 11kg and is shorter by 6%. The car also had to be planned in such a way so that the size and location of the nickel-metal hydride battery pack and the fuel tank would not have a significant impact on the cabin space for rear seat passengers and the boot’s size.
These two are located underneath the rear bench seat. As a result, there’s no impact on the car’s loadspace capacity, and rear passenger space. Yaris hybrid is equipped with the latest advancements in full hybrid technology and could offer class-leading CO2, NOx and particulates emissions, along with outstanding fuel consumption and low total ownerships costs. The new model is expected to start selling this June in the UK.
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