Essays about: "SI-engine"

Showing result 1 - 5 of 19 essays containing the word SI-engine.

1. 1. Modelling and Optimal Control of a Variable Nozzle Turbine in an SI Engine for Maximum Performance

   University essay from Linköpings universitet/Fordonssystem

   Author : Emil Fransson Brunberg; Karl Bolin; [2022]
   Keywords : Variable nozzle turbine; VNT; Variable geometry turbine; VGT; YOP; Collocation; Direct collocation; Optimal control; SI-engine; Engine control; Engine modelling;

   Abstract : The ever increasing demands on today's engine performance and emissions control is forcing the automotive industry to make use of innovative solutions. One of these is to apply the technology of VNT turbos on commercial petrol vehicles. READ MORE

3. 2. Implementation of a Model Predictive Controller in a Spark-Ignition Engine

   University essay from Linköpings universitet/Fordonssystem

   Author : Gustav Mann; Jakob Luedtke; [2021]
   Keywords : Model Predictive Control; SI engine; Variable Valve Timing; Throttle;

   Abstract : The propulsion of the spark-ignition engine has been investigated and developed during the past century to improve driveability, minimize fuel consumption and emissions, resulting in highly engineered and computerized powertrains. Well balanced engine maps containing coordinated set-points and model-based information sharing have solved the cross-coupling between different control loops. READ MORE

4. 3. Measurements and Modelling for Heat Transfer Corrected Exhaust Gas Temperatures in a Gasoline Engine

   University essay from Linköpings universitet/Fordonssystem

   Author : Anton Johansson; Martin Drangel; [2019]
   Keywords : temperature measurement; gasoline engine; thermocouple; modelling of a thermocouple;

   Abstract : This thesis is treating the modelling of a thermocouple (tc) to compensate forheat transfers due to convection, radiation and conduction when performingtemperature measurements in an SI-engine. An experiment plan was developedwhich covered experiments in an stc-rig and on a 4-cylinder SI-engine. READ MORE

5. 4. Physically Based Modelling for Knock Prediction in SI Engines

   University essay from Linköpings universitet/Fordonssystem

   Author : Nils Thornberg; Jonas Eriksson Kraft; [2018]
   Keywords : knock; engine; si; si-engine; prediction; modelling; heat; release; knack;

   Abstract : The high demand for an increase in performance and at the same time loweringthe emissions is forcing the automotive industry to increase the efficiency of thevehicles. This demand lead to a problem called knock, which often is the limitingfactor when increasing the efficiency of the engine. READ MORE

6. 5. Effects and Models of Water Injection in an SI Engine

   University essay from Linköpings universitet/Fordonssystem

   Author : Joel Westling; Haris Subasic; [2018]
   Keywords : ;

   Abstract : Downsizing and turbocharging is a popular combination nowadays in cars inorder to decrease the fuel consumption. However, the boost pressure increasesthe risk of engine knock, limiting the engine in high-load operating points. Inthe current engines, fuel is used to cool the engine in these operating points,leading to a higher fuel consumption. READ MORE