Hacks4ROS / h4r_ev3_ctrl

ROS Node for managing EV3 with ROS Control
GNU General Public License v3.0
21 stars 12 forks source link

Commanding absolute positions in joint position mode leads to velocity outputs #4

Open croesmann opened 8 years ago

croesmann commented 8 years ago

Whenever I use the joint position mode and a position_controllers/JointPositionController the controller / hardware interface still commands the input as velocity/speed instead of the position value.

However, I bypass this problem by using my self-adjusted PID position controller and the velocity joint interface: velocity_controllers/JointPositionController. Hence, I have not yet looked into the code in order to find the cause. Just for the record.

cyborg-x1 commented 8 years ago

You can change that at the moment by setting the mode in the yaml file. I know that it can be used differently, I found that out recently that I can use multiple command variables speed torque (effort).