High-speed Chemical Species Tomography (CST) using near-IR absorption has recently been demonstrated in a multi-cylinder gasoline SI engine running on retail fuel. Many of the inherent advantages of the CST technique would be even more marked in CI engines, for example in HCCI engines where mixture preparation involves residual species, and in diesel engines where gross inhomogeneities over lar...

List of old and new concepts of ICE thermodynamic improvements considering realistic limits of both mechanical and thermal stress and pollutant emissions, especially new concepts of combustion (HCCI-like), piston motion control, consequences of downsizing, possibilities of waste heat recovery and heat regeneration. Methods of simulation for conceptual optimization in hierarchy of procedures. Im...

This paper presents an approach to model-based controller development for Homogeneous Charge Compression Ignition (HCCI). The control strategy for HCCI is based on a physical two state discrete time model of the process. As the trapped exhaust is pivotal in setting up the cyclic coupling, its temperature and the amount of oxygen present in it are selected as the states of the system. The model ...

The PressureSense Glow Plug combines a miniature fiber optic-based cylinder pressure sensor with the automotive glow plug. The 1.7mm diameter sensor is sealed inside a glow plug heater and the sensor signal conditioner is encapsulated into a “smart connector”. The sensor operates on the proven principle of light intensity changes, transmitted by two optical fibers, upon reflection from a deflec...

Modeling engines using physics-based approaches is a traditional and widely-accepted method for predicting in-cylinder pressure the start of combustion (SOC). However, developing such intricate models typically demands significant effort, time, knowledge about underlying physical processes. In contrast, machine learning techniques have demonstrated their potential building that are not only rap...