The real-time angular velocity obtained by summit xl steel in the simulation is not consistent with the speed we released.

[Oscar-qi]

When the angular velocity of the robot is sent to the robot 1rad/s in the form of rostopic pub, the robot in the simulation does not reach the angular velocity we sent it. Looking at the odom, it is found that the angular velocity is 0.781rad/s. What is the reason for this?

The command he runs is: roslaunch summit_xl_sim_bringup summit_xls_complete.launch

and the Gazebo world is launched with use_sim_time = true