Analysis of tight corner braking phenomenon in full-time 4WD vehicles

Viscous coupling units (VCUs) are widely used in full-time four-wheel drive vehicles (full-time 4WDs) as a differential limiting device. A VCU must provide optimized torque transfer characteristics both for maximum traction and for maneuverability during tight cornering. We analyzed the effect of VC...

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Bibliographic Details
Published inJSAE review Vol. 23; no. 1; pp. 83 - 87
Main Authors Ando, Koji, Sawase, Kaoru, Takeo, Jitsutaka
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2002
Subjects
Braking
Correlation methods
Couplings
Maneuverability
Torque
Traction (friction)
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Summary:Viscous coupling units (VCUs) are widely used in full-time four-wheel drive vehicles (full-time 4WDs) as a differential limiting device. A VCU must provide optimized torque transfer characteristics both for maximum traction and for maneuverability during tight cornering. We analyzed the effect of VCU torque transfer characteristics on the development of a “tight corner braking phenomenon”. The results of this analysis were verified to have a high correlation with experimental data, and have enabled us to determine the optimum torque transfer characteristics which allow for minimization of the tight corner braking phenomenon for any given VCU design.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0389-4304
1879-0976
DOI:10.1016/S0389-4304(01)00157-6