Research

Recent work has shown that it is possible to produce a combustion process that is both highly efficient and clean when using alternative fuels. The AECL has been working to understand the dynamics of these engines including the challenge of cylinder-to-cylinder variations and has been examining potential cylinder-specific control methodologies for this application.

Many high efficiency combustion concepts leverage a combustion process that is controlled by chemical kinetics rather than by a typical trigger such as a spark or a fuel injection. In collaboration with Argonne National Laboratory, the AECL has been studying the dynamics of this type of combustion mode and has been investigating methods of controlling combustion timing using inexpensive sensors that are more readily available on production vehicles.

One way to improve internal combustion engines is to utilize them in conjunction with a more carbon neutral fuel. The AECL is partnering with WM International and Hyundai to examine high efficiency use of dimethyl ether and propane fuels enabled through a unique high pressure fuel injection system.

Gasoline compression ignition is an advanced combustion strategy that can enable cleaner and more efficient engine operation. The AECL is working with Argonne National Laboratory to better understand the dynamics of this combustion mode and develop estimation and control methodologies appropriate for its unique dynamics.

Connected and automated vehicle systems can improve transportation safety and energy efficiency. However, the ability to optimize energy use in real-world applications is challenging to assess. In collaboration with Argonne National Laboratory, the AECL is examining the uncertainty and repeatability of connected and automated vehicle operations.

Fuel cells provide a method of electrifying vehicles that is well suited to medium and heavy-duty vehicles, but the highly variable power demands typical of automotive applications make proper control of the dynamics of a fuel cell stack challenging. The AECL is investigating new methods to ensure that internal variations in fuel or air flow, temperature, and humidity can regulated to ensure sustained performance and optimized longevity.