diff --git a/jsowell-common/src/main/java/com/jsowell/common/util/BytesUtil.java b/jsowell-common/src/main/java/com/jsowell/common/util/BytesUtil.java
index 76a6ad6fe..eaeaf2801 100644
--- a/jsowell-common/src/main/java/com/jsowell/common/util/BytesUtil.java
+++ b/jsowell-common/src/main/java/com/jsowell/common/util/BytesUtil.java
@@ -8,6 +8,7 @@ import javax.xml.bind.DatatypeConverter;
 import java.io.UnsupportedEncodingException;
 import java.math.BigInteger;
 import java.time.LocalDateTime;
+import java.util.Arrays;
 import java.util.Date;
 import java.util.Stack;
 
@@ -403,6 +404,11 @@ public class BytesUtil {
 		return rightPadBytes(target, len, b);
 	}
 
+	/**
+	 * ASCII转字符串 小端模式
+	 * @param ascs
+	 * @return
+	 */
 	public static String ascii2StrLittle(byte[] ascs) {
 		byte[] data = revert(ascs);
 		String asciiStr = null;
@@ -414,6 +420,11 @@ public class BytesUtil {
 		return asciiStr;
 	}
 
+	/**
+	 * ASCII转字符串
+	 * @param ascs
+	 * @return
+	 */
 	public static String ascii2Str(byte[] ascs) {
 		byte[] data = ascs;
 		String asciiStr = null;
@@ -425,17 +436,20 @@ public class BytesUtil {
 		return asciiStr;
 	}
 
-	public static void main(String[] args) {
-		String vin1 = "SAITER00000000001";
-		byte[] bytes = str2Asc(vin1);
-		String s = ascii2Str(bytes);
-		System.out.println(s);
-	}
-
+	/**
+	 * 字符串转ASCII 小端模式
+	 * @param str
+	 * @return
+	 */
 	public static byte[] str2AscLittle(String str) {
 		return revert(str2Asc(str));
 	}
 
+	/**
+	 * 字符串转ASCII
+	 * @param str
+	 * @return
+	 */
 	public static byte[] str2Asc(String str) {
 		byte[] bytes = null;
 		try {
diff --git a/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/PileReservationInfoServiceImpl.java b/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/PileReservationInfoServiceImpl.java
index 08a804136..42ee308bd 100644
--- a/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/PileReservationInfoServiceImpl.java
+++ b/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/PileReservationInfoServiceImpl.java
@@ -184,7 +184,7 @@ public class PileReservationInfoServiceImpl implements PileReservationInfoServic
             }
             // 如果 vinCodes 的数量少于 3，用 "0" 补足
             while (vinCodes.size() < 3) {
-                vinCodes.add("0");
+                vinCodes.add("");
             }
 
             String type = StringUtils.equals(pileReservationInfo.getReservationType(), "single") ? "00" : "01";
diff --git a/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/YKCPushCommandServiceImpl.java b/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/YKCPushCommandServiceImpl.java
index bd03286ea..9a26bc84b 100644
--- a/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/YKCPushCommandServiceImpl.java
+++ b/jsowell-pile/src/main/java/com/jsowell/pile/service/impl/YKCPushCommandServiceImpl.java
@@ -508,24 +508,14 @@ public class YKCPushCommandServiceImpl implements YKCPushCommandService {
 
         // VIN1
         String vin1 = command.getVin1();
-        if (StringUtils.isBlank(vin1)) {
-            vin1 = Constants.ZERO;
-        }
-        // byte[] vin1ByteArr = BytesUtil.str2Bcd(vin1);
         byte[] vin1ByteArr = BytesUtil.str2Asc(vin1);
         vin1ByteArr = BytesUtil.ensureLength(vin1ByteArr, 17);
 
         String vin2 = command.getVin2();
-        if (StringUtils.isBlank(vin2)) {
-            vin2 = Constants.ZERO;
-        }
         byte[] vin2ByteArr = BytesUtil.str2Asc(vin2);
         vin2ByteArr = BytesUtil.ensureLength(vin2ByteArr, 17);
 
         String vin3 = command.getVin3();
-        if (StringUtils.isBlank(vin3)) {
-            vin3 = Constants.ZERO;
-        }
         byte[] vin3ByteArr = BytesUtil.str2Asc(vin3);
         vin3ByteArr = BytesUtil.ensureLength(vin3ByteArr, 17);