diff --git a/Service/Car/Msg/BaseMsg.cs b/Service/Car/Msg/BaseMsg.cs
index ce5fed6..44cf84e 100644
--- a/Service/Car/Msg/BaseMsg.cs
+++ b/Service/Car/Msg/BaseMsg.cs
@@ -32,6 +32,8 @@ public class BaseMsg : IToBytes
     [Property(184 + 5 * 8, 8)] public byte Min { get; set; }
     [Property(184 + 6 * 8, 8)] public byte Second { get; set; }
 
+    [Property(184 + 7 * 8, 8)] public byte NotUsed { get; set; } = 0;
+
     public void InitCurrentTime()
     {
         DateTime now = DateTime.Now;
diff --git a/WebStarter/Controllers/CarController.cs b/WebStarter/Controllers/CarController.cs
index 7017e15..5a23a6d 100644
--- a/WebStarter/Controllers/CarController.cs
+++ b/WebStarter/Controllers/CarController.cs
@@ -126,6 +126,11 @@ public class CarController : ControllerBase
         return true;
     }
 
+    /// <summary>
+    /// 清空数据
+    /// </summary>
+    /// <returns></returns>
+    [HttpGet("/clear")]
     public bool Clear()
     {
         if (CarServerMgr.CarServer?.CarNo == null)