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Twist values for robot insanely large

asked 2015-03-23 16:38:33 -0500

luketheduke gravatar image

Hi All, I am making a robot based off of a wheelchair. When I try to run the bot with the teleop_twist_keyboard node I have to turn up the speed to over 20 in order for the motors to move and then they run extremely quickly. Is this normal? All of the programs I have tried for teleoperation have been in the range of +/- 1.5 or less for all axises. The github repo with the code is here: Thanks for helping a beginner get on in ROS! Thanks, luketheduke

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answered 2015-03-23 19:00:06 -0500

tfoote gravatar image

That is very high. Units on Twist should be in m/s (see rep 103) 20m/s is ~ 44mph which is a little fast for any wheelchair type application.

Requiring a command that high suggests that your platform's controller is not controlling for speed properly.

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Could you take quick look through thew github repo and see if you could locate the problem? Thanks, Luketheduke

luketheduke gravatar image luketheduke  ( 2015-03-24 12:44:22 -0500 )edit

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Asked: 2015-03-23 16:38:33 -0500

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Last updated: Mar 23 '15