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Sedan trunk lid hinges: evaluation of existing hinge types and development of a new concept
2001 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In today's sedan cars there exists two types of trunk lid hinges. One of those is the gooseneck model which consists of a steel tube connected to the trunk lid and to a point under the parcel shelf. The other type is the multilink hinge, which consists of two links mounted into the water channel. Each one of these types has some good qualities, but also very big problems. Roughly speaking they are each others opposites. The gooseneck hinge has low maneuvering forces when opening/closing the trunk lid, but its big disadvantage is the size which contributes to greatly reduce the size of the luggage compartment. The multilink hinge on the other hand is mounted into the water channel, and because of that it occupies no space of the luggage compartment. The big problem with the multilink hinge is instead its high and uneven maneuvering forces. The purpose of this thesis work was to develop a complete concept of a trunk lid hinge for Saab's sedan models considering issues like size, maneuvering forces, temperature sensitivity, weight, cost and more. A concept was chosen that did combine the advantages of both existing hinge types. This thesis also includes analysis of hinges in competitor cars, and measuring the dispersion in maneuvering forces between different Saab cars. Finally the best choise for motor-driven trunk lid is investigated.

Place, publisher, year, edition, pages
Keyword [en]
Technology, sedan, hinge, luggage compartment, trunk lid
Keyword [sv]
URN: urn:nbn:se:ltu:diva-55011ISRN: LTU-EX--01/061--SELocal ID: becec0c0-594c-4ead-a401-3a854ed979bdOAI: diva2:1028392
Subject / course
Student thesis, at least 30 credits
Educational program
Mechanical Engineering, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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