In productionProbeginnerCommand watchdog
The robot keeps moving after software stops
Stop motion locally when command updates cease.
Pairs with Watchdogs and safe recovery in Hardware Integration & CANopen. Read the concept first, then diagnose it here.
Unlock this lab with ProOperator report
Killing the ROS controller leaves the drive holding its last velocity indefinitely.
Ubuntu 24.04, ROS 2 Jazzy, SocketCAN vcan, CANopen drive simulator, ros2_control
System boundary
Trace only the relevant path.
/cmd_vel updatesdrive watchdogmotor command
How this lab works
You diagnose it — no command list.
Open the repair workspace and gather your own evidence in a real terminal. No diagnostic commands are handed to you — finding the fault is the exercise. Stuck? Progressive hints unlock inside the workspace.
Verification
Your repair must pass more than the visible symptom.
- Stop latency below 250 ms
- Reason is reported
- Hidden regression behavior
- Root cause explanation