3 ms·
The light rail MAX trains in Portland use regen braking without batteries, as one train is slowing it's generating power for other trains that are in motion[1].
by blacksmith_tb 3y ago
The light rail MAX trains in Portland use regen braking without batteries, as one train is slowing it's generating power for other trains that are in motion[1].
1: https://www.wired.com/2013/06/portland-light-rail/ https://www.wired.com/2013/06/portland-light-rail/