It is hard for you to remember this kanji by its origin. However, I will think of a way for you to remember it. 転=車＋云，車 means “car”，云 is part of 雲，which is cloud. If you drive your car on the cloud, then it will be dangerous because you will fall down. So 転 stands for “to fall down”.
As you know the origin of this kanji，now you can remember it easier.