diff --git a/protos/common_data.proto b/protos/common_data.proto
index f067618..7017b13 100644
--- a/protos/common_data.proto
+++ b/protos/common_data.proto
@@ -46,8 +46,8 @@ message TrainDynamicConfig{
   int32 stopSign=17;
   //前溜/后溜（m/s）默认0
   float slide = 18;
-  int32 trainLoad = 19 ;//列车载荷
-
+  int32 trainLoad = 19 ;//列车载荷(吨)
+  float maxSpeed = 20; //列车最大时速
 }
 //列车一端的状态
 message TrainEndsState{
diff --git a/protos/device_state.proto b/protos/device_state.proto
index eefe58b..8509b2d 100644
--- a/protos/device_state.proto
+++ b/protos/device_state.proto
@@ -472,7 +472,7 @@ message TrainVobcState {
     bool trainConnInitComplate = 82;
     //ato关右门
     bool atoCloseRightDoor = 83;
-    int32 tractionPower = 84; //牵引功率 单位W
+    bool lightAtoSend = 84;
 //  request.TrainControl.Direction historyDir = 76; //历史行驶方向，用于列车操控时，方向旋钮更改方向时使用，不在前端显示
 }