History of the lnnovative Valve Control (IVC)
Intensive development work in the field of electromechanical valve
control started
in Germany in 1984 directed by Audi and in cooperation with FEV.
In the beginning of the nineties the development work was cut back considerably
since electrical power consumption and electronic cost were too high.
Former
VW CEO Dr. Piëch summarized it this way: „The improvement of the
motor was destroyed by the electrical power consumption.“
For several years now, however, development has intensively been resumed.
FEV demonstrated additional potentials of the electromechanical valve
control
and proved the feasibility for use in the vehicle.
LSP started development work in 1997. The primary aim was to significantly
reduce the electrical power consumption. To achieve this LSP developed
a new actuator concept under the name of „IVC – Innovative Valve Control“.
Magneti Marelli was acquired as a first licensee and development partner
and DaimlerChrysler as a first OEM.
• Potential to improve engine power with low effective moving masses
• Favorable features for engine applications
- no constraints for valve distance, cylinder head distance 75-105
- reduction of height of cylinder head in comparison to competing systems
- no need for lubrication except the valve
• Good controllability (dynamic coil, low masses, low eddy current
losses)