To　enhance　the　road　mobility　of　EVs,　this　research　performs　the　accurate　modeling　of　non-stationary　road　irregularity　and　estimates　the　real-time　power　consumption　of　shock　absorbers　and　the　energy　slip　loss　of　the　driving　wheel.　First,　a　modulated　white　noise　method　is　proposed　to　generate　non-stationary　road　irregularity　with　different　frequency　exponents.　Then,　the　parameter　setting　problem　of　the　standard　white　noise　is　solved.　To　describe　the　detrimental　effect　of　time-domain　non-stationary　road　irregularity　on　the　time-varying　vehicle　speed,　a　simple　and　effective　lookup　table　method　is　presented　with　the　real-time　running　distance　and　the　corresponding　road　elevation　as　input　and　output,　respectively.　Next,　a　half　electric　vehicle　model　is　developed　to　describe　the　interaction　between　vertical-pitching　vibration　and　longitudinal　driving　motion.　The　non-stationary　road　irregularity-induced　power　consumptions　of　both　pairs　of　shock　absorbers　and　the　energy　slip　loss　of　the　driving　wheel　are　analyzed　under　different　frequency　exponents　and　time-varying　vehicle　speed.　The　results　show　that　the　power　consumption　of　shock　absorbers　increases　when　the　frequency　exponent　decreases　and　the　vehicle　speed　increases.　Under　the　high　running　speed　and　large　acceleration　driving　condition,　the　mean　of　slip　energy　loss　of　the　driving　wheel　is　several　times　larger　than　the　mean　sum　of　the　power　consumption　of　shock　absorbers.　©　2023　Elsevier　Ltd