Benefits of the IVC System

The IVC system is characterized by a very low electrical power demand.

• The power consumption at 2000 rpm, 2 bar is relevant for the fuel consumption of the valve train. In comparison to roller lever valve trains which require an equivalent power of 450-500 Watts the IVC system consumes 180 Watts (full stroke mode) to 390 Watts (part stroke mode). This advantage can be turned into a fuel economy benefit ranging from 2 to 5 %.

• The low peak power consumption at 6000 rpm, full load (<800 Watt for complete 4 cyl. engine) has a significant impact on the cost of the power supply system and therefore influences overall system cost.

This energetic efficiency combined with the thermodynamic potential of the full variability of the system (cylinder deactivation, dethrottling) can be turned into a fuel consumption reduction of greater than 20%.

The lever design enables a shorter transition time (<2,5 ms for opening or closing event) in comparison the classical EMVT systems. This enables engine performances equal or superior to state-of-the art cam-driven engines.