diff --git a/Service/Car/Codec/Decoder.cs b/Service/Car/Codec/Decoder.cs
index 933134a..e09bab5 100644
--- a/Service/Car/Codec/Decoder.cs
+++ b/Service/Car/Codec/Decoder.cs
@@ -1,8 +1,12 @@
 using DotNetty.Buffers;
 using DotNetty.Codecs;
 using DotNetty.Transport.Channels;
+using HybirdFrameworkCore.Utils;
 using log4net;
 using Service.Car.Common;
+using Service.Car.Msg;
+using Service.Car.Msg.Car.Req;
+using Service.Car.Msg.Car.Resp;
 
 namespace Service.Car.Codec;
 
@@ -20,7 +24,7 @@ public class Decoder : ByteToMessageDecoder
             //分隔符索引
             int delimiterIndex = IndexOf(buffer, delimiter);
             //帧长索引
-            int frameLengthIndex = delimiterIndex + delimiter.Capacity;
+            int frameLengthIndex = delimiterIndex + CarConst.StartChar.Length;
 
             if (delimiterIndex > 0)
             {
@@ -28,7 +32,7 @@ public class Decoder : ByteToMessageDecoder
                 return;
             }
 
-            if (buffer.ReadableBytes < frameLengthIndex + 2)
+            if (buffer.ReadableBytes < frameLengthIndex)
             {
                 // 数据不足，等待更多数据
                 return;
@@ -43,10 +47,30 @@ public class Decoder : ByteToMessageDecoder
                 return;
             }
 
+            var msg = Parse(buffer, frameLength);
+            output.Add(msg);
+
             buffer.Clear();
         }
     }
 
+    private BaseMsg Parse(IByteBuffer buffer, int length)
+    {
+        byte[] data = new byte[length];
+        buffer.ReadBytes(data);
+
+        return data[5] switch
+        {
+            0x01 => ModelConvert.Decode<ElecMsg>(data),
+            0x03 => ModelConvert.Decode<HeartBeatMsg>(data),
+            0x06 => ModelConvert.Decode<LockMsgResp>(data),
+            0x08 => ModelConvert.Decode<UnLockMsgResp>(data),
+            0x10 => ModelConvert.Decode<SettleConfirmMsgResp>(data),
+            0x12 => ModelConvert.Decode<SetParamMsgResp>(data),
+            _ => new BaseMsg()
+        };
+    }
+
     private IByteBuffer? FindDelimiter(IByteBuffer buffer)
     {
         foreach (IByteBuffer delimiter in _delimiters)
diff --git a/Service/Car/Codec/Encoder.cs b/Service/Car/Codec/Encoder.cs
index 7d24036..f64cf63 100644
--- a/Service/Car/Codec/Encoder.cs
+++ b/Service/Car/Codec/Encoder.cs
@@ -2,6 +2,7 @@
 using DotNetty.Codecs;
 using DotNetty.Transport.Channels;
 using log4net;
+using Service.Car.Common;
 using Service.Car.Msg;
 
 namespace Service.Car.Codec;
@@ -23,5 +24,6 @@ public class Encoder : MessageToByteEncoder<BaseMsg>
     {
         byte[] bytes = obj.ToBytes();
         output.WriteBytes(bytes);
+        output.WriteBytes(CarConst.EndChar);
     }
 }
\ No newline at end of file
diff --git a/Service/Car/Msg/BaseMsg.cs b/Service/Car/Msg/BaseMsg.cs
index 4e861f0..ce5fed6 100644
--- a/Service/Car/Msg/BaseMsg.cs
+++ b/Service/Car/Msg/BaseMsg.cs
@@ -1,10 +1,11 @@
 using HybirdFrameworkCore.Autofac.Attribute;
+using HybirdFrameworkCore.Utils;
 using HybirdFrameworkDriver.Common;
 using Service.Car.Common;
 
 namespace Service.Car.Msg;
 
-public class BaseMsg: IToBytes
+public class BaseMsg : IToBytes
 {
     [Property(0, 8 * 3)] public byte[] StartChar { get; set; } = CarConst.StartChar;
     [Property(24, 16)] public ushort Length { get; set; }
@@ -51,6 +52,6 @@ public class BaseMsg: IToBytes
 
     public byte[] ToBytes()
     {
-        throw new NotImplementedException();
+        return ModelConvert.Encode(this);
     }
 }
\ No newline at end of file
diff --git a/Service/Car/Msg/Car/Req/ElecMsg.cs b/Service/Car/Msg/Car/Req/ElecMsg.cs
index 0f3a653..8bc9233 100644
--- a/Service/Car/Msg/Car/Req/ElecMsg.cs
+++ b/Service/Car/Msg/Car/Req/ElecMsg.cs
@@ -2,11 +2,23 @@
 
 namespace Service.Car.Msg.Car.Req;
 
-public class ElecMsg
+public class ElecMsg : BaseMsg
 {
     /// <summary>
     /// 累计放电量
     /// </summary>
     [Property(248, 24, scale: 0.01, round: 2)]
     public double AccDischargeCount { get; set; }
+
+    /// <summary>
+    /// 累计放电量
+    /// </summary>
+    [Property(272, 24, scale: 0.01, round: 2)]
+    public double AccFallbackCount { get; set; }
+
+    /// <summary>
+    /// 累计放电量
+    /// </summary>
+    [Property(296, 24, scale: 0.01, round: 2)]
+    public double AccChargeCount { get; set; }
 }
\ No newline at end of file
diff --git a/Service/Car/Msg/Car/Req/HeartBeatMsg.cs b/Service/Car/Msg/Car/Req/HeartBeatMsg.cs
index 62d40bc..0be6a80 100644
--- a/Service/Car/Msg/Car/Req/HeartBeatMsg.cs
+++ b/Service/Car/Msg/Car/Req/HeartBeatMsg.cs
@@ -1,6 +1,22 @@
-namespace Service.Car.Msg.Car.Req;
+using HybirdFrameworkCore.Autofac.Attribute;
 
-public class HeartBeatMsg
+namespace Service.Car.Msg.Car.Req;
+
+public class HeartBeatMsg: BaseMsg
 {
-    
+    /// <summary>
+    /// 锁止状态 1 解锁状态 2 上锁状态
+    /// </summary>
+    [Property(248, 8)]
+    public byte LockStatus { get; set; }
+    /// <summary>
+    /// 钥匙状态 0: OFF 1: ACC 2: ON 0xFF: 不支持
+    /// </summary>
+    [Property(256, 8)]
+    public byte KeyStatus { get; set; }
+    /// <summary>
+    /// 电磁阀驱动状态  0：驱动关闭 1：驱动打开
+    /// </summary>
+    [Property(264, 8)]
+    public byte SolenoidValveStatus { get; set; }
 }
\ No newline at end of file
diff --git a/Service/Car/Msg/Car/Resp/LockMsgResp.cs b/Service/Car/Msg/Car/Resp/LockMsgResp.cs
index 010482a..0a8ad11 100644
--- a/Service/Car/Msg/Car/Resp/LockMsgResp.cs
+++ b/Service/Car/Msg/Car/Resp/LockMsgResp.cs
@@ -1,6 +1,12 @@
-namespace Service.Car.Msg.Car.Resp;
+using HybirdFrameworkCore.Autofac.Attribute;
 
-public class LockMsgResp
+namespace Service.Car.Msg.Car.Resp;
+
+public class LockMsgResp : BaseMsg
 {
-    
+    /// <summary>
+    /// 0、加锁成功；1、加锁失败；2、车架号不匹配；FF、 异常
+    /// </summary>
+    [Property(248, 8)]
+    public byte Result { get; set; }
 }
\ No newline at end of file
diff --git a/Service/Car/Msg/Car/Resp/SettleConfirmMsgResp.cs b/Service/Car/Msg/Car/Resp/SettleConfirmMsgResp.cs
index 7639b8b..f0eadcd 100644
--- a/Service/Car/Msg/Car/Resp/SettleConfirmMsgResp.cs
+++ b/Service/Car/Msg/Car/Resp/SettleConfirmMsgResp.cs
@@ -1,6 +1,12 @@
-namespace Service.Car.Msg.Car.Resp;
+using HybirdFrameworkCore.Autofac.Attribute;
 
-public class SettleConfirmMsgResp
+namespace Service.Car.Msg.Car.Resp;
+
+public class SettleConfirmMsgResp : BaseMsg
 {
-    
+    /// <summary>
+    /// 0、确认成功；1、确认失败；2、车架号不匹配；FF、 异常
+    /// </summary>
+    [Property(248, 8)]
+    public byte Result { get; set; }
 }
\ No newline at end of file
diff --git a/Service/Car/Msg/Car/Resp/UnLockMsgResp.cs b/Service/Car/Msg/Car/Resp/UnLockMsgResp.cs
index 6da0dbb..86e2d6b 100644
--- a/Service/Car/Msg/Car/Resp/UnLockMsgResp.cs
+++ b/Service/Car/Msg/Car/Resp/UnLockMsgResp.cs
@@ -1,6 +1,12 @@
-namespace Service.Car.Msg.Car.Resp;
+using HybirdFrameworkCore.Autofac.Attribute;
 
-public class UnLockMsgResp
+namespace Service.Car.Msg.Car.Resp;
+
+public class UnLockMsgResp : BaseMsg
 {
-    
+    /// <summary>
+    /// 0、解锁成功；1、非 ACC OFF 状态；2、车架号不匹配；3、 解锁失败；FF、异常
+    /// </summary>
+    [Property(248, 8)]
+    public byte Result { get; set; }
 }
\ No newline at end of file
diff --git a/Service/Car/Msg/Host/Req/LockMsg.cs b/Service/Car/Msg/Host/Req/LockMsg.cs
index 4badc37..01884cf 100644
--- a/Service/Car/Msg/Host/Req/LockMsg.cs
+++ b/Service/Car/Msg/Host/Req/LockMsg.cs
@@ -1,6 +1,11 @@
-namespace Service.Car.Msg.Host.Req;
+using HybirdFrameworkCore.Autofac.Attribute;
 
-public class LockMsg
+namespace Service.Car.Msg.Host.Req;
+
+public class LockMsg : BaseMsg
 {
-    
+    /// <summary>
+    /// </summary>
+    [Property(248, 8)]
+    public byte Command { get; set; } = 0x55;
 }
\ No newline at end of file
diff --git a/Service/Car/Msg/Host/Req/SetParamMsg.cs b/Service/Car/Msg/Host/Req/SetParamMsg.cs
index 3f6b2d6..e109768 100644
--- a/Service/Car/Msg/Host/Req/SetParamMsg.cs
+++ b/Service/Car/Msg/Host/Req/SetParamMsg.cs
@@ -1,6 +1,6 @@
 namespace Service.Car.Msg.Host.Req;
 
-public class SetParamMsg
+public class SetParamMsg: BaseMsg
 {
     
 }
\ No newline at end of file
diff --git a/Service/Car/Msg/Host/Req/SettleConfirmMsg.cs b/Service/Car/Msg/Host/Req/SettleConfirmMsg.cs
index ec39a6d..d21ca79 100644
--- a/Service/Car/Msg/Host/Req/SettleConfirmMsg.cs
+++ b/Service/Car/Msg/Host/Req/SettleConfirmMsg.cs
@@ -1,6 +1,11 @@
-namespace Service.Car.Msg.Host.Req;
+using HybirdFrameworkCore.Autofac.Attribute;
 
-public class SettleConfirmMsg
+namespace Service.Car.Msg.Host.Req;
+
+public class SettleConfirmMsg : BaseMsg
 {
-    
+    /// <summary>
+    /// </summary>
+    [Property(248, 8)]
+    public byte Command { get; set; } = 0x55;
 }
\ No newline at end of file
diff --git a/Service/Car/Msg/Host/Req/UnLockMsg.cs b/Service/Car/Msg/Host/Req/UnLockMsg.cs
index 06d6fa6..4591a80 100644
--- a/Service/Car/Msg/Host/Req/UnLockMsg.cs
+++ b/Service/Car/Msg/Host/Req/UnLockMsg.cs
@@ -1,6 +1,11 @@
-namespace Service.Car.Msg.Host.Req;
+using HybirdFrameworkCore.Autofac.Attribute;
 
-public class UnLockMsg
+namespace Service.Car.Msg.Host.Req;
+
+public class UnLockMsg: BaseMsg
 {
-    
+    /// <summary>
+    /// </summary>
+    [Property(248, 8)]
+    public byte Command { get; set; } = 0x55;
 }
\ No newline at end of file
diff --git a/Service/Car/Msg/Host/Resp/ElecMsgResp.cs b/Service/Car/Msg/Host/Resp/ElecMsgResp.cs
index cdd03fa..1746d5b 100644
--- a/Service/Car/Msg/Host/Resp/ElecMsgResp.cs
+++ b/Service/Car/Msg/Host/Resp/ElecMsgResp.cs
@@ -1,6 +1,20 @@
-namespace Service.Car.Msg.Host.Resp;
+using HybirdFrameworkCore.Autofac.Attribute;
 
-public class ElecMsgResp
+namespace Service.Car.Msg.Host.Resp;
+
+public class ElecMsgResp : BaseMsg
 {
-    
+    /// <summary>
+    /// 0：成功；1：失败
+    /// </summary>
+    [Property(248, 8)] public byte Result { get; set; }
+
+    /// <summary>
+    /// 0：成功；1：失败
+    /// </summary>
+    /// <param name="result"></param>
+    public ElecMsgResp(byte result)
+    {
+        this.Result = result;
+    }
 }
\ No newline at end of file
diff --git a/Service/Car/Msg/Host/Resp/HeartBeatMsgResp.cs b/Service/Car/Msg/Host/Resp/HeartBeatMsgResp.cs
index b9d39bc..39f8362 100644
--- a/Service/Car/Msg/Host/Resp/HeartBeatMsgResp.cs
+++ b/Service/Car/Msg/Host/Resp/HeartBeatMsgResp.cs
@@ -1,6 +1,12 @@
-namespace Service.Car.Msg.Host.Resp;
+using HybirdFrameworkCore.Autofac.Attribute;
 
-public class HeartBeatMsgResp
+namespace Service.Car.Msg.Host.Resp;
+
+public class HeartBeatMsgResp : BaseMsg
 {
-    
+    /// <summary>
+    /// 锁止状态 1 待机 2 换电
+    /// </summary>
+    [Property(248, 8)]
+    public byte HostStatus { get; set; }
 }
\ No newline at end of file