Sökning: "WHTC"

Hittade 5 uppsatser innehållade ordet WHTC.

  1. 1. Development of a Modelling Tool For Robustness Analysis of Embedded Powertrain Control System

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Renjith Ramachandran; [2022]
    Nyckelord :;

    Sammanfattning : Robustness analysis of an Embedded control system is a crucial test stage in quantifying the quality of the system and proposing further improvements on it. In this thesis work a modelling tool for robustness analysis of embedded powertrain control system of truck and bus is developed on top of an in house SIL simulation environment. LÄS MER

  3. 2. 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

  4. 3. Analysis of the South Korean Procedure for the Fuel Consumption and CO2 Emissions from Heavy Duty Vehicles. Sensitivity Analysis of the Fuel Consumption Deviation in Transient Cycles over Steady State Conditions.

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Swarna Manjari Ayyalasomayajula; [2018]
    Nyckelord :;

    Sammanfattning : To meet the demands to reduce national energy consumption and greenhouse gas emission targets based on environmental policy, the Ministry of Trade, Industry, and Energy of Korea formed a research consortium consisting of government agencies and academic research institutions to establish the first fuel efficiency standards for Heavy-duty commercial vehicles (HDV). The standards are expected to be introduced at the earliest in 2020 as Phase 1 of the plan. LÄS MER

  5. 4. Numerical Optimal Control of Hybrid Electric Trucks : Exhaust Temperature, NOx Emission and Fuel Consumption

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Fredrik Andersson; Hampus Andersson; [2018]
    Nyckelord :Numerical optimal control; HEV; Diesel electric hybrid truck; Exhaust temperature; Emissions; NOx; SCR;

    Sammanfattning : The controls for a parallel hybrid electric truck are optimized using numerical optimal control. Trade-offs between catalyst light-off times, NOx emission and fuel consumption have been investigated for cold starts at two operating points, as well as temperature differences between conventional and hybrid powertrains during WHTC (World Harmonized Transient Cycle). LÄS MER

  7. 5. Modeling of soot emission for heavy-duty diesel engines in transient operation

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Mohammed Adlouni; [2011]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The soot emissions from diesel engines are much higher in transient operation than during steady state operation. In this thesis, a method for estimating the soot mass flow emission in transient drive cycles is presented. The proposed method uses stationary emission maps in combination with step responses. LÄS MER