Event-driven valve train

[raymr]

It seems everything else is being done by wire, why not have an engine valve system that, instead of mechanical timing, is operated just by solenoids at each intake and exhaust valve by the ECU? That way software can determine the optimum open and close sequence under every condition, and can even account for engine wear. It would also do away with timing chains, belts, cams, and gears. Plus theres the benefit of less drag and fewer moving parts.

Many cars have VVT and other valve system enhancements but they are still mechanically based. I think its just a matter of time, if it hasn't been done already. Anyone else?