diff --git a/A1_motor.py b/A1_motor.py
index 00f31c3..9358b28 100644
--- a/A1_motor.py
+++ b/A1_motor.py
@@ -49,11 +49,11 @@ class A1Motor(MotorInstance):
         self.motor_name = "-".join([self.serial_path, str(id), str(int(time.time()))]) if motor_name is None else motor_name
         self.serial = SerialPort(self.serial_path)
         self.reduction_ratio = queryGearRatio(self.motor_type)
-        self._tau = 0
-        self._dq = 0
-        self._q = 0
-        self._kp = 0
-        self._kd = 0
+        self._tau = tau
+        self._dq = dq
+        self._q = q
+        self._kp = kp
+        self._kd = kd
         self.init_motor_cmd()
         self.init_motor_data()