IRVW II

Hans Haase: added Category:Volkswagen concept vehicles using HotCat

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The '''IRVW II''' is a modified [[Volkswagen Passat (B2)]] from 1980. It was built for research on [[fuel economy in automobiles]].

Releasing the accelerator shuts down the engine and the vehicle automatically changes the vehicle into [[Gliding (vehicle)|gliding]]. The engine was automatically restarted by using the accelerator. Depending on the road conditions, it was possible to cover up to half of the way in gliding mode. Since gliding was not taken up into legislation of consumption and taxation, automatic engine shutdown made not its way into production. The additional costs for the new car would have been amortized by saving gasoline in two years average use. After the [[1973 oil crisis]] and the [[1979 oil crisis]], the concept marketed as ''Formula E'' stood for energy saving and expanded the features of the IRVW II. A green indicator light with an upward pointing arrow in the cockpit recommended the driver to shift up the manual gear box. Ford used this indicator in the 2000s in series. In the ''e-gear'', the then newly installed in cars fifth gear in manual transmissions, a reduction in engine speed was achieved, but not on the vehilce speed, due headwind at this speed. An ''ecometer'' showed in ''e-gear'' consumption in [[l/100 km]].<ref>[https://www.youtube.com/watch?v=oYvg4l2cNZ0 IRVW II - VW Forschungsauto 1980]</ref>

A this time, the [[catalytic converter]] was already present is the US, but not in Europe, where [[leaded fuel]] which is not combatible with the catalytic converter, disappeared in 1987 from the [[filling station]]s in [[West Germany]].

In 1995 [[Toyota]] filed the patent on a concept that includes gliding without drivers attetion, but also a [[planetary gear]]set and [[Electric drive vehicle|electric drive]] the predecessor of the [[Hybrid Synergy Drive]], known as a major concept of [[hybrid vehicle]]s.

== References ==
<references />

[[Category:Volkswagen vehicles]]
[[Category:Hatchbacks]]
[[Category:Compact cars]]
[[Category:Volkswagen concept vehicles]]

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