diff --git a/app/console/model/BrandTranslationModel.php b/app/console/model/BrandTranslationModel.php
index 62b0abe..199958b 100644
--- a/app/console/model/BrandTranslationModel.php
+++ b/app/console/model/BrandTranslationModel.php
@@ -59,4 +59,18 @@ class BrandTranslationModel extends Model
     {
         return $this->belongsTo(BrandModel::class, 'brand_id');
     }
+
+    // 初始化钩子
+    public static function boot()
+    {
+        parent::boot();
+
+        // 保存后触发（包括创建和更新）
+        static::saved(function ($model) {
+            // 业务逻辑
+            if($model->locale == 'en'){
+                BrandModel::updateOrCreate(['id' => $model->id],['letter' => mb_substr($model->name, 0, 1, 'UTF-8')]);
+            }
+        });
+    }
 }
\ No newline at end of file
diff --git a/app/console/service/VehicleNewService.php b/app/console/service/VehicleNewService.php
index 9516f5f..9ea6dff 100644
--- a/app/console/service/VehicleNewService.php
+++ b/app/console/service/VehicleNewService.php
@@ -128,6 +128,9 @@ class VehicleNewService extends BaseService
 
         Db::beginTransaction();
         try {
+            if(empty($params['model'])){
+                $params['model'] = 0;
+            }
             $info = $this->create($params);
             if (!$info) {
                 throw new BusinessException('提交失败');
@@ -253,6 +256,9 @@ class VehicleNewService extends BaseService
 
         Db::beginTransaction();
         try {
+            if(empty($params['model'])){
+                $params['model'] = 0;
+            }
             $info = $this->update($id, $params);
             if (!$info) {
                 throw new BusinessException('提交失败');