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CAE Tool for Evaluation of Park Lock Mechanism in a DCT Transmission
Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013).
2017 (engelsk)Independent thesis Advanced level (degree of Master (Two Years)), 20 poäng / 30 hpOppgaveAlternativ tittel
CAE verktyg för utvärdering av parkeringslåsmekanism i en växellåda med dubbla kopplingar (svensk)
Abstract [en]

A park lock mechanism is a device that is fitted to an automatic transmission on a vehicle. The mechanism lock up the transmission so that no rolling of the vehicle can be done when the vehicle is put in the park position.

The aim of this thesis is to develop a method in order the evaluate designs on a Park Lock Mechanism (PLM) that can be found in a dual clutch transmission (DCT).

A Computer Aided Engineering (CAE) tool to calculate the output that is required for an evaluation of a park lock mechanism design will be created. The CAE tool shall calculate static, dynamic, and snap torque on a ratchet wheel in a gradient, with or without a trailer, also the minimum and maximum coefficient of friction between the pawl and cone, pull out force, the maximum amount of rollback, torque needed from the return spring, preload force from actuator spring, and engagement speed.

The CAE tool created uses an Excel Visual Basics for Applications (VBA) workbook for all calculations. The tool allows the user to choose different vehicles with the required specification to evaluate the values for that PLM.

The CAE tool will save time and cost if lots of different PLM’s are going to be designed. The CAE tool has potential for future work when more calculations can be added that can be in use for the evaluation the PLM.

The CAE tool developed by the master thesis student calculates all the required values for evaluation of a PLM design, executed in a fast, efficient, and easy to use program. 

sted, utgiver, år, opplag, sider
2017. , s. 42
Emneord [en]
DCT, Dual clutch transmission, park lock, park lock mechanism, CAE tool, friction
HSV kategori
Identifikatorer
URN: urn:nbn:se:kau:diva-62635OAI: oai:DiVA.org:kau-62635DiVA, id: diva2:1131149
Eksternt samarbeid
China Euro Vehicle Technology AB
Fag / kurs
Mechanical Engineering
Utdanningsprogram
Engineering: Mechanical Engineering, spec. in Materials Engineering (300 ECTS credits)
Veileder
Examiner
Tilgjengelig fra: 2017-08-25 Laget: 2017-08-12 Sist oppdatert: 2017-08-25bibliografisk kontrollert

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