diff --git a/HybirdFrameworkDriver/Session/SessionMgr.cs b/HybirdFrameworkDriver/Session/SessionMgr.cs
index a09b507..48bded0 100644
--- a/HybirdFrameworkDriver/Session/SessionMgr.cs
+++ b/HybirdFrameworkDriver/Session/SessionMgr.cs
@@ -16,15 +16,8 @@ public class SessionMgr
 
     public static IoSession? GetSession(string key)
     {
-        if (Dictionary.ContainsKey(key))
-        {
-            IoSession? value;
-            Dictionary.TryGetValue(key, out value);
-
-            return value;
-        }
-
-        return null;
+        Dictionary.TryGetValue(key, out IoSession? value);
+        return value;
     }
 
     public static List<IoSession> GetSessionList()
@@ -59,6 +52,18 @@ public class SessionMgr
         Dictionary.AddOrUpdate(channel.Id.ToString(), ioSession, (k, oldSession) => ioSession);
     }
 
+    public static void ChangeSessionKey(IoSession ioSession, string newKey)
+    {
+        var oldKey = ioSession.Key;
+        if (oldKey != null)
+        {
+            Dictionary.Remove(oldKey, out IoSession? session);
+        }
+
+        ioSession.Key = newKey;
+        Dictionary.AddOrUpdate(newKey, ioSession, (k, oldSession) => ioSession);
+    }
+
 
     public static void RegisterModbusSession(string key, ModbusSession ioSession)
     {
diff --git a/Service/Car/Handler/HeartBeatMsgHandler.cs b/Service/Car/Handler/HeartBeatMsgHandler.cs
index 3ea7c56..dc9212a 100644
--- a/Service/Car/Handler/HeartBeatMsgHandler.cs
+++ b/Service/Car/Handler/HeartBeatMsgHandler.cs
@@ -1,5 +1,6 @@
 using DotNetty.Transport.Channels;
 using HybirdFrameworkCore.Autofac.Attribute;
+using HybirdFrameworkDriver.Session;
 using Service.Car.Msg.Car.Req;
 using Service.Car.Msg.Host.Resp;
 using Service.Car.Server;
@@ -22,6 +23,13 @@ public class HeartBeatMsgHandler : SimpleChannelInboundHandler<HeartBeatMsg>, IB
     protected override void ChannelRead0(IChannelHandlerContext ctx, HeartBeatMsg msg)
     {
         CarServerMgr.CarServer.Connected = true;
+
+        IoSession? ioSession = SessionMgr.GetSession(ctx.Channel.Id.ToString());
+        if (ioSession != null && ioSession.Key != msg.CarNo)
+        {
+            SessionMgr.ChangeSessionKey(ioSession, msg.CarNo);
+        }
+
         CarServerMgr.CarServer.CarNo = msg.CarNo;
         CarServerMgr.CarServer.HeartBeatMsg = msg;
         HeartBeatMsgResp resp = new HeartBeatMsgResp( CarServerMgr.CarServer.StationStatus)
diff --git a/Service/Car/Server/CarServer.cs b/Service/Car/Server/CarServer.cs
index 79c3c8a..15ac747 100644
--- a/Service/Car/Server/CarServer.cs
+++ b/Service/Car/Server/CarServer.cs
@@ -36,15 +36,21 @@ public class CarServer : TcpServer<IBaseHandler, Decoder, Encoder>
 
     public CarServer() : base()
     {
-        this.ChannelInActiveAction = () =>
-        {
-            Connected = false;
-            HeartBeatMsg = null;
-            ElecMsg = null;
-            LockMsgResp = null;
-            UnLockMsgResp = null;
-            SetParamMsgResp = null;
-            SettleConfirmMsgResp = null;
-        };
+        this.ChannelInActiveAction = Clean;
+    }
+
+    /// <summary>
+    ///  清理数据
+    /// </summary>
+    public void Clean()
+    {
+        Connected = false;
+        CarNo = null;
+        HeartBeatMsg = null;
+        ElecMsg = null;
+        LockMsgResp = null;
+        UnLockMsgResp = null;
+        SetParamMsgResp = null;
+        SettleConfirmMsgResp = null;
     }
 }
\ No newline at end of file
diff --git a/WebStarter/Controllers/CarController.cs b/WebStarter/Controllers/CarController.cs
index 5ddd6dd..7017e15 100644
--- a/WebStarter/Controllers/CarController.cs
+++ b/WebStarter/Controllers/CarController.cs
@@ -125,4 +125,24 @@ public class CarController : ControllerBase
 
         return true;
     }
+
+    public bool Clear()
+    {
+        if (CarServerMgr.CarServer?.CarNo == null)
+        {
+            CarServerMgr.CarServer.Clean();
+            return true;
+        }
+
+        IoSession? session = SessionMgr.GetSession(CarServerMgr.CarServer.CarNo);
+        if (session == null)
+        {
+            CarServerMgr.CarServer.Clean();
+            return true;
+        }
+
+        session.Close();
+        CarServerMgr.CarServer.Clean();
+        return true;
+    }
 }
\ No newline at end of file