In　this　paper,　an　optimal　control　algorithm　for　connected　vehicle　systems　is　proposed　in　order　to　ensure　the　vehicular　platoon　stable　as　well　as　reduce　the　transmission　power　consumptions　in　the　presence　of　the　network-induced　delays.　First,　the　vehicle　dynamic　modeling　and　power　consumption　analysis　are　addressed　based　on　a　typical　3-vehicle　platoon.　With　the　objective　of　minimizing　the　deviations　of　vehicle＇s　headway　and　velocity　as　well　as　reducing　power　consumption,　an　optimization　problem　is　formulated　using　a　quadratic　cost　function.　Then,　the　design　of　the　optimal　control　strategy　with　minimum　power　consumption　for　connected　vehicle　systems　can　be　divided　into　two　steps:　first　the　minimal　hop　routings　for　human-driven　vehicles　are　obtained　based　on　the　network　topology,　and　then　the　optimal　control　strategy　is　derived　based　on　the　determined　transmission　routing.