AFAIK all values are controlled by a camshaft. The computer doesn't get enough control. Solenoids seems like that are a possible replacement for CAMs, but they apparently have too many downsides.
Koenigsegg has an engine design that has a camless valve system based on their "Freevalve" technology. Its pretty cool.
https://en.wikipedia.org/wiki/Koenigsegg_TFG
Koenigsegg has an engine design that has a camless valve system based on their "Freevalve" technology. Its pretty cool.
https://en.wikipedia.org/wiki/Koenigsegg_TFG