Essays about: "Wiebe Function"

Found 4 essays containing the words Wiebe Function.

  1. 1. Virtual Crank Angle based Cylinder Pressure Sensor

    University essay from KTH/Förbränningsmotorteknik

    Author : Christopher Ringström; [2017]
    Keywords : virtual sensor; in-cylinder pressure; heat release; wiebe parametrisation; indicated work; virtuell sensor; cylindertryck; värmeavgivning; wiebe anpassning; indikerat arbete; diesel motor;

    Abstract : Closed-loop combustion control is an on-going field of research for improving reducing engine emissions and increasing efficiency. Cylinder pressure is a key parameter to monitor for combustion feedback. READ MORE

  3. 2. Virtual Crank Angle based Cylinder Pressure Sensor

    University essay from KTH/Maskinkonstruktion (Avd.)

    Author : Christopher Ringström; [2017]
    Keywords : Virtual sensor; In-cylinder pressure; Heat release; Wiebe parametrisation; Indicated work; Virtuell sensor; Cylindertryck; Värmeavgivning; Wiebe anpassning; Indikerat arbete; Diesel motor;

    Abstract : Closed-loop combustion control is an on-going field of research for improving reducing engine emissions and increasing efficiency. Cylinder pressure is a key parameter to monitor for combustion feedback. READ MORE

  4. 3. Development and Validation of a Turbulent Flame Propagation Model

    University essay from Lunds universitet/Fysiska institutionen

    Author : Simon Bjerkborn; [2011]
    Keywords : Combustion physics; flame propagation; engine simulations; SI engines; Bjerkborn; Simon Bjerkborn; Loge AB; Loge; SRM; Stochastic Reactor Model; Monte Carlo; Physics and Astronomy;

    Abstract : The aim of this thesis was to develop a model for flame propagation, to implement in a zero-dimensional engine simulation tool (DARS 0d-SRM) which previously only used fitted Wiebe-functions to describe the flame propagation. The idea was to create a model which could replace or complement the Wiebe function, but with predictive capabilities, avoiding the need to perform curve-fitting when certain parameters are changed. READ MORE

  5. 4. Cylinder-by-Cylinder Torque Model of an SI-Engine for Real-Time Applications

    University essay from Institutionen för systemteknik

    Author : Mohit Hashemzadeh Nayeri; [2005]
    Keywords : CCEM; Hil; Simulink; Wiebe Function; Cylinder Pressure; Torque Balance;

    Abstract : In recent years Hardware-in-the-Loop HiL, has gained more and more popularity within the vehicle industry. This is a more cost effective research alternative, as opposed to the tests done the traditional way, since in HiL testing the idea is to test the hardware of interest, such as an electronic control unit, in a simulated (or partially simulated) environment which closely resembles the real-world environment. READ MORE