DOG CLUTCH WITH ZERO CIRCUMFERENTIAL BACKLASH

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F16%3A00309748" target="_blank" >RIV/68407700:21220/16:00309748 - isvavai.cz</a>

Result on the web

<a href="http://www.transmission-symposium.com" target="_blank" >http://www.transmission-symposium.com</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

DOG CLUTCH WITH ZERO CIRCUMFERENTIAL BACKLASH

Original language description

The paper is dedicated to design and test of a new dog-clutch gearshift mechanism for passenger car gearboxes with external synchronisation. There are two main targets of presented work: 1) Replace the standard synchroniser with cheap and compact shift device, which will allow the internal architecture of gearbox similar to the classical manual transmission 2) Keep all important functions of synchroniser; except for the synchronisation: minimal circular backlash to avoid clash during change of sense of the torque flow, prevent unwanted disengagement, and guarantee the shift anytime. To this purpose we invented and designed a new mechanism. To observe the real life function this prototype was assembled into the passenger car gearbox between the IIIrd and IVth speed. The transmission was equipped with external synchronization device. The gearshift tests were conducted on a flywheel test stand equipped with pneumatic shift robot. With help of external synchronisation device the different relative speeds between the free rotating wheel and shaft were preset. The impact of speed difference on shift smoothness was evaluated with help of vibration measurement. The results were compared with the same gearbox equipped with classical synchroniser. The newly invented clutch offers good possibility to minimize the length. The comparison of standard 5 speed transmission with synchronisers and with the new clutches was elaborated in a CAD model.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JT - Propulsion, engines and fuels

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

15th CTI Symposium

ISBN

978-3-9817822-2-6

ISSN

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e-ISSN

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Number of pages

10

Pages from-to

1-10

Publisher name

Car Training Institute

Place of publication

Düsseldorf

Event location

Berlín

Event date

Dec 5, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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