https://9dok.org/document/zgwl71gn-topneumaticsystemsinpureelectricvehicles-inwhichthecontinuouscontrolsignalsaretransformedintodiscrete-becauseofthehighcontrolfrequencydomainoftherealsystem-moderncontrolmethodswithhighcomputationaldemandscouldnotbeusedastheydonotmeetreal-theessentialsimpl.html