Essays about: "PEMS"

Showing result 1 - 5 of 6 essays containing the word PEMS.

  1. 1. Refinement and Investigation of Instruments for Emission Screening of Passenger Cars

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Marcus Ruderer; Signe Stéen; [2022]
    Keywords : Emission Screening; Real Driving Emissions; Light-Duty Vehicles; PEMS; SEMS; Emissionskontroll; RDE; Lätta Fordon; PEMS; SEMS;

    Abstract : A Portable Emissions Measurement System (PEMS) is widely used for analysing the emissions of a vehicle. However, the PEMS is quite cumbersome and time-consuming to use for vehicle testing. This thesis investigates the possibilities of a Smart Emissions Measurement System (SEMS) and how it correlates to the more advanced PEMS. READ MORE

  3. 2. Validation of WUI-NITY compared to real-world data

    University essay from Lunds universitet/Avdelningen för Brandteknik

    Author : Jonatan Edenvik; [2022]
    Keywords : Wildland urban interface; Wildfires; Community evacuation; Real-world simulation; WUI-NITY; PeMS; Pedestrian simulation; Traffic simulation; Technology and Engineering;

    Abstract : This thesis compares the wildfire evacuation simulation programme, WUI-NITY, against real-world data by analysing and comparing three wildfire events of the past. The wildfire events were all limited to be within the state of California and was further analysed based on the available quality of data derived of the chosen database. READ MORE

  4. 3. Implementing method for conducting Real Driving Emission (RDE)

    University essay from KTH/Kraft- och värmeteknologi

    Author : Zeerak Noralm; [2018]
    Keywords : PEMS; RDE; Light Duty Vehicle; NEDC; PEMS; RDE; WLTP; NEDC; MAW; ECU; utsläpp emission; körkriterier;

    Abstract : Det här projektet handlar om att utveckla en metod för real driving emission (RDE). RDE är ett komplement till Worldwide Light Duty Test Procedure (WLTP) som kommer att ersätta New European Driving Cycle (NEDC). Dessa cykler och metoder används för att mäta personbilars avgaser. READ MORE

  5. 4. Identification in Cascade Networks with Weighted Null-Space Fitting

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Riccardo Prota; [2018]
    Keywords : ;

    Abstract : System identification has the role to build mathematical models fordynamical systems, starting from the experimental data. One of themost studied and considered methods is the prediction error method(PEM); the main idea is minimizing a cost function based on the predictionerrors. READ MORE

  6. 5. Investigation of Accuracy in Fuel Economy Measurement Methods

    University essay from KTH/Fordonsdynamik

    Author : Oscar Olofsson; [2015]
    Keywords : ;

    Abstract : Bakgrunden till det här examensarbetet är den ökade relevansen av att minska fordons bränsleförbrukning på grund av faktorer så som minskade oljeresurser och ökande bränslepriser. Tidigare utförda tester har visat att verklig bränsleekonomi skiljer sig nämnvärt från bränsleekonomi uppmätt med hjälp av simulerad vägkorsning i chassidynamometer. READ MORE