Sökning: "Variable-Geometry Turbocharger"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Variable-Geometry Turbocharger.

  1. 1. Electrically Assisted Turbocharger: Modelling And Control Strategy

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Erik Vandor; Gabriel Ehlin; [2022]
    Nyckelord :EAT; VGT; VNT; Hybrid powertrain; electric turbocharger;

    Sammanfattning : A major cause of CO2 emissions today is fossil fuel vehicles, and lowering these emissions is of key importance, resulting in increasing electrification and hybridisation nowadays. Turbochargers have been used for a long time to recycle exhaust gas heat losses to improve engine performance by compressing the intake air. LÄS MER

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

    Master-uppsats, Linköpings universitet/Fordonssystem

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

    Sammanfattning : 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. LÄS MER

  4. 3. Linearization Based Model Predictive Control of a Diesel Engine with Exhaust Gas Recirculation and Variable-Geometry Turbocharger

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Jonatan Gustafsson; [2021]
    Nyckelord :MPC; Model Predictive Control; LMPC; Linearization Based MPC; SLMPC; Successive Linearization Based MPC; Reference Generator; CasADi; EGR; Exhaust Gas Recirculation; VGT; Variable-Geometry Turbocharger; Diesel Engine; Heavy Duty Diesel Engine; Automatic Control; WHTC; World Harmonized Transient Cycle; Direct Multiple Shooting;

    Sammanfattning : Engine control systems aim to ensure satisfactory output performance whilst adhering to requirements on emissions, drivability and fuel efficiency. Model predictive control (MPC) has shown promising results when applied to multivariable and nonlinear systems with operational constraints, such as diesel engines. LÄS MER

  5. 4. Performance Investigation & Gas Exchange Assessment of Exhaust Piston–assisted Turbocharged Engine (EPTE) Concept : A simulation-based assessment

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Nachiketh Lingachari Acharya; Saurav Dasgupta; [2021]
    Nyckelord :;

    Sammanfattning : There is an increasing stringency in the emission legislation within the transport industry along with ambitious performance demands from the customer side. These have pushed the vehicle manufacturers and relevant component suppliers to develop and integrate a wide portfolio of engine technologies. LÄS MER

  7. 5. Variable Stator Nozzle Angle Control in a Turbocharger Inlet

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Enrique Carrasco Mora; [2015]
    Nyckelord :Turbocharger Radial Turbine Blade Nozzle;

    Sammanfattning : Turbochargers are becoming an essential device in internal combustion engines as they boost the intake air with more pressure in order to increase the power output. These devices are normally designed for a single steady design point but the pulsating flow delivered from the internal combustion engine is everything but steady. LÄS MER