Control-oriented model for integrated diesel engine and aftertreatment systems thermal management

In-cylinder pressure resonance analysis for trapped mass estimation in automotive engines

“…Similar approaches can be found in [12,13] for determining the TDC by referencing an offset in the location of the TDC instead of an offset in the pressure level.…”

“…Engine D: Engine D was developed from a heavy-duty truck engine for studying the autoignition of a mixture composed from two different fuels (RCCI) [9][10][11][12][13][14]. The detailed geometry of the bowl is shown in Figure 4 The engine was equipped with port fuel gasoline and direct diesel injection systems, having both injection systems a specific hardware for controlling them.…”

“…Exhaust temperature is an important parameter for engine control: an accurate and fast estimation of the exhaust gases temperature permits maintaining non-damaging exhaust conditions [11]; turbocharger and after-treatment systems control and optimization require an exhaust temperature measurement or estimation [12][13][14], since turbine available power and catalyst light-off strongly depends on temperature; and finally, EGR rate observers and models rely on exhaust gases temperature to estimate its value [15,16].…”

“…In-cylinder pressure sensors offer a direct measurement of the combustion process, and a wide range of applications exist for its use: combustion detection [2], knock detection [3,4], noise control [5,6], fuel tolerance diagnostics [7], combustion control in both, next cycle [8] and same cycle approach [9], emissions dispersion [10], mass composition estimation [11], TDC determination [12,13], EOC detection [14], among others.…”

“…However, an accurate intake composition estimation in engines working with new combustion concepts will be necessary not only for emissions control, but also for combustion stability [12][13][14][15][16][17].…”