i use move_base in my robot for navigation,
**situation 1:** the robot can get the goal but it almost move very very slow, even if there is no obstacles nearby.
**situation 2:** robot rotate frequently even there is no obstacles around.
**i try:** echo the cmd_vel msg i found the v_x stays around the min_vel_x 0.1 m/s and there are unexpected points the speed approach max_vel_x 0.5m/s, that is so strange. (the control frequency is set 15Hz)
see the figure below:
the blue line is cmd_vel_x, and red line is cmd_vel_theta
**Q1:** why not the velocity changed smoothly?
**Q2:**why the velocity always stay around 0.1 m/s,(0.1m/s is the min_vel_x setting in base_local_planner_params.yaml)
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