fixed serial Test

Script/Model/ModelSerialTest.cs

@@ -53,6 +53,7 @@ public class ModelSerialTest : EGModule,IEGFramework
             EngineInitEvent.UnRegister();
             this.EngineSerialPort = sender;
             EG.Print("Engine sensor init success!");
+            this.GetModule<ModelTrackControl>();
             // this.GetModule<ModelTrackControl>().ResetTrack();
         }
     }