Spark Anemometry for Efficient and Heavy H2 Engines
Starting from the method of spark anemometry previously developed on an experimental single-cylinder engine, the project aims to transform it into a TRL3 technology.
After further development within the SAYH2 project, the method has been successfully implemented on a production power unit, capable of evaluating the fluid velocity inside the cylinder. This parameter is closely related to the combustion timing, especially in its initial phases; therefore, spark anemometry inherently increases control margins.
In line with the proposed approach, the technology has been implemented without the need for additional hardware sensors.
Spark anemometry is fully compatible with the ignition control of individual cylinders, thus maximizing efficiency, especially under lean fueling conditions or high exhaust gas recirculation rates.
SAYH2 has formulated the concept of controlling spark timing from cylinder to cylinder and has successfully demonstrated efficiency improvements through software-in-the-loop implementation. The initial proposal for direct integration of the software has been completed with a new concept that involves adding a dedicated control module with plug-and-play functionality; this way, the potential market has been further expanded with the development of retrofit product types.
SAYH2 lays the foundation for further developments and successfully provides the groundwork for improving TRL and reducing time-to-market.
