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Originally Posted by petet16
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Cheers Pete Was going to look into the use of springs and pneumatics as used in the F1 cars, MotoGP and the new Koenigsegg engine and that has some good info on it.
Although the still use a camshaft to control valve lift.
There are a number of as I call them Hybrid systems like BMW's Valvetronic and Fiats Multiair that although still use cams use some form of mechanical or hydraulic actuation to alter the lift or duration.
What I am hoping to do is to remove the cam all together. There are a number of companies that have tried it. Believe Ricardo were/are working on a hydraulic version and Valeo had an electromagnetic setup that they were testing in two peugeot 207s. Must have 15+ technical papers on various systems and test benches that Im working my way through
Theres alot of stuff to cover and the actual actuation is only a small part going to have to try and setup a system that will be capable of sensing the valve lift and the RPM or throttle postion and then feeding it back to a standalone control unit that Im going to have to program. Which hopefully so alter the lift to achieve max performance or reliability depending on situation. BMW have spent millions on it. Still its a 2 year project so I have some time
