diff --git a/ruoyi-admin/src/main/resources/templates/tyre/tyre/typreDetill2.html b/ruoyi-admin/src/main/resources/templates/tyre/tyre/typreDetill2.html
index 35918300..fb640d3b 100644
--- a/ruoyi-admin/src/main/resources/templates/tyre/tyre/typreDetill2.html
+++ b/ruoyi-admin/src/main/resources/templates/tyre/tyre/typreDetill2.html
@@ -452,6 +452,7 @@
                         <div class="life-time" th:text="${seg.startTime == null ? '-' : #dates.format(seg.startTime, 'yyyy-MM-dd HH:mm:ss')}">-</div>
                     </div>
                     <div class="life-meta">
+                        <div th:text="${#strings.isEmpty(seg.plateNumber) ? '车牌号：-' : '车牌号：' + seg.plateNumber}">车牌号：-</div>
                         <div th:text="${seg.endTime == null ? '卸下时间：-' : '卸下时间：' + #dates.format(seg.endTime, 'yyyy-MM-dd HH:mm:ss')}">卸下时间：-</div>
                         <div th:text="${seg.mileage == null ? '该程行驶里程：-' : '该程行驶里程：' + seg.mileage + ' km'}">该程行驶里程：-</div>
                         <div th:text="${#strings.isEmpty(seg.patternDepth) ? '本程剩余花纹：-' : '本程剩余花纹：' + seg.patternDepth + ' mm'}">本程剩余花纹：-</div>
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/domain/CarLifecycleSummaryDTO.java b/ruoyi-system/src/main/java/com/ruoyi/system/domain/CarLifecycleSummaryDTO.java
index 70848bc6..30aa357b 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/domain/CarLifecycleSummaryDTO.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/domain/CarLifecycleSummaryDTO.java
@@ -26,10 +26,10 @@ public class CarLifecycleSummaryDTO implements Serializable
     /** 所属车队名称，由部门ID关联翻译而来，前端直接展示。 */
     private String team;
 
-    /** 线路名称，车辆运营的公交/客运线路。 */
+    /** 线路名称 */
     private String line;
 
-    /** 车型，例如：纯电动大巴、混合动力公交等字典值。 */
+    /** 车型 */
     private String type;
 
     /**
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/domain/RecordTyreMileage.java b/ruoyi-system/src/main/java/com/ruoyi/system/domain/RecordTyreMileage.java
index 5de261bf..07cf7a6d 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/domain/RecordTyreMileage.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/domain/RecordTyreMileage.java
@@ -42,8 +42,19 @@ public class RecordTyreMileage extends BaseEntity
     @Excel(name = "花纹深度")
     private String patternDepth;
 
+    /** 车牌号码快照：里程记录按卸胎时车辆归属追溯，避免后续轮胎换车后丢失历史车辆关系。 */
+    private String plateNumber;
+
     private String recordId;
 
+    public String getPlateNumber() {
+        return plateNumber;
+    }
+
+    public void setPlateNumber(String plateNumber) {
+        this.plateNumber = plateNumber;
+    }
+
     public String getRecordId() {
         return recordId;
     }
@@ -137,6 +148,8 @@ public class RecordTyreMileage extends BaseEntity
         
         .append("mileage", getMileage())
         
+        .append("plateNumber", getPlateNumber())
+        
         .append("createBy", getCreateBy())
         
         .append("createTime", getCreateTime())
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/mapper/BaseTyreMapper.java b/ruoyi-system/src/main/java/com/ruoyi/system/mapper/BaseTyreMapper.java
index 957dbad0..ac6f78b4 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/mapper/BaseTyreMapper.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/mapper/BaseTyreMapper.java
@@ -95,5 +95,13 @@ public interface BaseTyreMapper
 
     int updateBaseTyreByEpc(BaseTyre baseTyre);
 
+    /**
+     * 按轮胎RFID批量查询当前安装车牌
+     *
+     * @param tyreEpcs 轮胎RFID集合
+     * @return 轮胎基础信息集合
+     */
+    List<BaseTyre> selectCarNoByTyreEpcs(List<String> tyreEpcs);
+
     double selectSumMileageByRFID(@Param("tyreEpc") String tyreEpc);
 }
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/mapper/RecordTyreInstallMapper.java b/ruoyi-system/src/main/java/com/ruoyi/system/mapper/RecordTyreInstallMapper.java
index b370cb7e..543dc835 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/mapper/RecordTyreInstallMapper.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/mapper/RecordTyreInstallMapper.java
@@ -31,6 +31,7 @@ public interface RecordTyreInstallMapper
      */
     public List<RecordTyreInstall> selectRecordTyreInstallList(RecordTyreInstall recordTyreInstall);
 
+
     /**
      * 新增轮胎安装记录
      * 
@@ -64,4 +65,13 @@ public interface RecordTyreInstallMapper
     public int deleteRecordTyreInstallByIds(String[] ids);
 
     RecordTyreInstall selectRecordTyreInstallStart(RecordTyreInstall start);
+
+    /**
+     * 按记录号批量查询装卸记录车牌
+     *
+     * @param recordIds 记录号集合
+     * @return 装卸记录集合
+     */
+    public List<RecordTyreInstall> selectCarNoByRecordIds(List<String> recordIds);
+
 }
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BaseTyreServiceImpl.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BaseTyreServiceImpl.java
index 3019681c..0346acdf 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BaseTyreServiceImpl.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/BaseTyreServiceImpl.java
@@ -364,6 +364,9 @@ public class BaseTyreServiceImpl implements IBaseTyreService
             return map;
         }
 
+        // 10. 老数据可能未写 record_tyre_mileage.plate_number，按需补查车牌，避免页面层猜测或全量查询。
+        fillMissingMileagePlateNumber(mileageList);
+
         // 10. 解析初始花纹深度，并计算各段磨损量
         BigDecimal initialDepth = TyreLifecycleCalc.parseDepth(resultBase.getPatternDepth());
         Map<Long, String> wearMap = TyreLifecycleCalc.computeSegmentWears(initialDepth, mileageList);
@@ -394,6 +397,7 @@ public class BaseTyreServiceImpl implements IBaseTyreService
             vo.put("remark", item.getRemark()); // 备注信息
             vo.put("tyreBrand", item.getTyreBrand()); // 轮胎品牌
             vo.put("tyreNo", item.getTyreNo()); // 轮胎编号
+            vo.put("plateNumber", item.getPlateNumber()); // 卸胎时的车牌快照，用于详情页按里程段追溯车辆归属
             vo.put("wearDepth", item.getId() == null ? null : wearMap.get(item.getId())); // 磨损深度（从计算结果取）
             // 14. 累加有效里程值（mileage 为 Long 类型，表示该段 km 差值）
             if (item.getMileage() != null)
@@ -412,6 +416,8 @@ public class BaseTyreServiceImpl implements IBaseTyreService
         return map;
     }
 
+
+
     private List<RecordTyreInstall> castInstallList(Object value)
     {
         // 1. 初始化空结果列表，用于存放转换后的安装记录
@@ -432,4 +438,79 @@ public class BaseTyreServiceImpl implements IBaseTyreService
         // 4. 返回类型安全的安装记录列表
         return result;
     }
+
+
+
+
+    // 轮胎生命周期里程记录填充车牌号
+    private void fillMissingMileagePlateNumber(List<RecordTyreMileage> mileageList)
+    {
+        Set<String> recordIdSet = new LinkedHashSet<>();
+        for (RecordTyreMileage item : mileageList)
+        {
+            if (item != null && StringUtils.isBlank(item.getPlateNumber()) && !StringUtils.isBlank(item.getRecordId()))
+            {
+                recordIdSet.add(item.getRecordId());
+            }
+        }
+        if (!recordIdSet.isEmpty())
+        {
+            List<RecordTyreInstall> installList = recordTyreInstallMapper.selectCarNoByRecordIds(new ArrayList<>(recordIdSet));
+            Map<String, String> recordIdCarNoMap = new HashMap<>();
+            if (installList != null && !installList.isEmpty())
+            {
+                for (RecordTyreInstall install : installList)
+                {
+                    if (install != null && !StringUtils.isBlank(install.getRecordId()) && !StringUtils.isBlank(install.getCarNo()))
+                    {
+                        recordIdCarNoMap.put(install.getRecordId(), install.getCarNo());
+                    }
+                }
+            }
+            for (RecordTyreMileage item : mileageList)
+            {
+                if (item != null && StringUtils.isBlank(item.getPlateNumber()) && !StringUtils.isBlank(item.getRecordId()))
+                {
+                    // record_id 对应卸胎当次装卸记录，优先使用它保留历史车辆归属，不被轮胎后续换车影响。
+                    item.setPlateNumber(recordIdCarNoMap.get(item.getRecordId()));
+                }
+            }
+        }
+
+        Set<String> tyreRfidSet = new LinkedHashSet<>();
+        for (RecordTyreMileage item : mileageList)
+        {
+            if (item != null && StringUtils.isBlank(item.getPlateNumber()) && !StringUtils.isBlank(item.getTyreRfid()))
+            {
+                tyreRfidSet.add(item.getTyreRfid());
+            }
+        }
+        if (tyreRfidSet.isEmpty())
+        {
+            return;
+        }
+
+        List<BaseTyre> tyreList = baseTyreMapper.selectCarNoByTyreEpcs(new ArrayList<>(tyreRfidSet));
+        if (tyreList == null || tyreList.isEmpty())
+        {
+            return;
+        }
+
+        Map<String, String> tyreRfidCarNoMap = new HashMap<>();
+        for (BaseTyre tyre : tyreList)
+        {
+            if (tyre != null && !StringUtils.isBlank(tyre.getTyreEpc()) && !StringUtils.isBlank(tyre.getCarNo()))
+            {
+                tyreRfidCarNoMap.put(tyre.getTyreEpc(), tyre.getCarNo());
+            }
+        }
+        for (RecordTyreMileage item : mileageList)
+        {
+            if (item != null && StringUtils.isBlank(item.getPlateNumber()) && !StringUtils.isBlank(item.getTyreRfid()))
+            {
+                // tyre_rfid 只作为历史记录缺 record_id 时的兜底，按当前轮胎基础信息补齐展示字段。
+                item.setPlateNumber(tyreRfidCarNoMap.get(item.getTyreRfid()));
+            }
+        }
+    }
 }
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/RecordTyreInstallServiceImpl.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/RecordTyreInstallServiceImpl.java
index 945cd9b1..0d4c1fdf 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/RecordTyreInstallServiceImpl.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/RecordTyreInstallServiceImpl.java
@@ -173,6 +173,8 @@ public class RecordTyreInstallServiceImpl implements IRecordTyreInstallService
             recordTyreMileage.setCreateTime(DateUtils.getNowDate());
             recordTyreMileage.setCreateBy(recordTyreInstall.getCreateBy());
             recordTyreMileage.setRecordId(recordId);
+            // 车牌号按卸胎当下车辆归属写入里程快照，避免轮胎后续换车后历史里程记录无法追溯车辆。
+            // recordTyreMileage.setPlateNumber(recordTyreInstall.getCarNo());
             recordTyreMileageMapper.insertRecordTyreMileage(recordTyreMileage);
             if (n>0&&m>0){
                 return AjaxResult.success("卸胎成功！");
diff --git a/ruoyi-system/src/main/resources/mapper/tyre/BaseTyreMapper.xml b/ruoyi-system/src/main/resources/mapper/tyre/BaseTyreMapper.xml
index f170a134..14959c65 100644
--- a/ruoyi-system/src/main/resources/mapper/tyre/BaseTyreMapper.xml
+++ b/ruoyi-system/src/main/resources/mapper/tyre/BaseTyreMapper.xml
@@ -301,4 +301,17 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         where tyre_rfid = #{tyreEpc}
     </select>
 
+
+
+
+    <select id="selectCarNoByTyreEpcs" parameterType="java.util.List" resultMap="BaseTyreResult">
+        select tyre_epc, car_no
+        from base_tyre
+        where car_no is not null
+        and car_no != ''
+        and tyre_epc in
+        <foreach item="tyreEpc" collection="list" open="(" separator="," close=")">
+            #{tyreEpc}
+        </foreach>
+    </select>
 </mapper>
diff --git a/ruoyi-system/src/main/resources/mapper/tyre/RecordTyreInstallMapper.xml b/ruoyi-system/src/main/resources/mapper/tyre/RecordTyreInstallMapper.xml
index 46be076a..d56e1c81 100644
--- a/ruoyi-system/src/main/resources/mapper/tyre/RecordTyreInstallMapper.xml
+++ b/ruoyi-system/src/main/resources/mapper/tyre/RecordTyreInstallMapper.xml
@@ -25,6 +25,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <result property="company"    column="company"    />
         <result property="carTeam"    column="carTeam"    />
         <result property="stageMileage"    column="stage_mileage"    />
+        <result property="recordId"    column="record_id"    />
     </resultMap>
 
     <sql id="selectRecordTyreInstallVo">
@@ -56,6 +57,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 
         ${params.dataScope}
     </select>
+
     
     <select id="selectRecordTyreInstallById" parameterType="Long" resultMap="RecordTyreInstallResult">
         select rti.id, rti.tyre_rfid, rti.type, rti.mileage, rti.create_by, rti.create_time, rti.update_by, rti.update_time,
@@ -138,4 +140,16 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         </foreach>
     </delete>
     
-</mapper>
\ No newline at end of file
+
+        <select id="selectCarNoByRecordIds" parameterType="java.util.List" resultMap="RecordTyreInstallResult">
+        select record_id, car_no
+        from record_tyre_install
+        where car_no is not null
+          and car_no != ''
+          and record_id in
+        <foreach item="recordId" collection="list" open="(" separator="," close=")">
+            #{recordId}
+        </foreach>
+    </select>
+
+</mapper>
diff --git a/ruoyi-system/src/main/resources/mapper/tyre/RecordTyreMileageMapper.xml b/ruoyi-system/src/main/resources/mapper/tyre/RecordTyreMileageMapper.xml
index eea6851f..3c948b31 100644
--- a/ruoyi-system/src/main/resources/mapper/tyre/RecordTyreMileageMapper.xml
+++ b/ruoyi-system/src/main/resources/mapper/tyre/RecordTyreMileageMapper.xml
@@ -18,15 +18,17 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         <result property="tyreBrand"    column="tyre_brand"    />
         <result property="tyreNo"    column="tyre_no"    />
         <result property="patternDepth"    column="pattern_depth"    />
+        <result property="plateNumber"    column="plate_number"    />
+        <result property="recordId"    column="record_id"    />
     </resultMap>
 
     <sql id="selectRecordTyreMileageVo">
-        select id, tyre_rfid, start_time, end_time, mileage, pattern_depth, create_by, create_time, update_by, update_time, remark from record_tyre_mileage
+        select id, tyre_rfid, start_time, end_time, mileage, pattern_depth, plate_number, record_id, create_by, create_time, update_by, update_time, remark from record_tyre_mileage
     </sql>
 
     <select id="selectRecordTyreMileageList" parameterType="RecordTyreMileage" resultMap="RecordTyreMileageResult">
         select rtm.id, rtm.tyre_rfid, rtm.start_time, rtm.end_time, rtm.mileage, rtm.pattern_depth,
-        rtm.create_by, rtm.create_time, rtm.update_by, rtm.update_time, rtm.remark,bt.tyre_brand,bt.tyre_no
+        rtm.create_by, rtm.create_time, rtm.update_by, rtm.update_time, rtm.remark, rtm.plate_number, rtm.record_id, bt.tyre_brand, bt.tyre_no
         from record_tyre_mileage rtm
         LEFT JOIN base_tyre bt ON rtm.tyre_rfid = bt.tyre_epc
         where rtm.id  is not null
@@ -38,7 +40,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="tyreNo != null and tyreNo != ''"> and bt.tyre_no = #{tyreNo}</if>
         ${params.dataScope}
     </select>
-    
+
     <select id="selectRecordTyreMileageById" parameterType="Long" resultMap="RecordTyreMileageResult">
         <include refid="selectRecordTyreMileageVo"/>
         where id = #{id}
@@ -58,6 +60,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="updateTime != null ">update_time,</if>
             <if test="remark != null  and remark != ''">remark,</if>
             <if test="patternDepth != null ">pattern_depth,</if>
+            <if test="plateNumber != null  and plateNumber != ''">plate_number,</if>
             <if test="recordId != null ">record_id,</if>
          </trim>
         <trim prefix="values (" suffix=")" suffixOverrides=",">
@@ -72,6 +75,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="updateTime != null ">#{updateTime},</if>
             <if test="remark != null  and remark != ''">#{remark},</if>
             <if test="patternDepth != null  and patternDepth != ''">#{patternDepth},</if>
+            <if test="plateNumber != null  and plateNumber != ''">#{plateNumber},</if>
             <if test="recordId != null  and recordId != ''">#{recordId},</if>
          </trim>
     </insert>
@@ -88,6 +92,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="updateBy != null  and updateBy != ''">update_by = #{updateBy},</if>
             <if test="updateTime != null ">update_time = #{updateTime},</if>
             <if test="patternDepth != null ">pattern_depth = #{patternDepth},</if>
+            <if test="plateNumber != null  and plateNumber != ''">plate_number = #{plateNumber},</if>
             <if test="remark != null  and remark != ''">remark = #{remark},</if>
         </trim>
         where id = #{id}