Update driving mechanism
Update driving mechanism

- update speed limitation mechanism
- check if min distance is not None

project-capo/app-drive-and-visualize,project-capo/app-drive-and-visualize,dev-navi/navi-python-main,project-capo/app-drive-and-visualize,dev-navi/navi-python-main,dev-navi/navi-python-main,project-capo/app-drive-and-visualize,dev-navi/navi-python-main