Effect of handling characteristics on minimum time cornering with torque vectoring

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dc.contributor.authorSmith, Edward N.
dc.contributor.authorVelenis, Efstathios
dc.contributor.authorTavernini, Davide
dc.contributor.authorCao, Dongpu
dc.date.accessioned2017-10-16T14:58:35Z
dc.date.available2017-10-16T14:58:35Z
dc.date.issued2017-09-12
dc.description.abstractIn this paper, the effect of both passive and actively-modified vehicle handling characteristics on minimum time manoeuvring for vehicles with 4-wheel torque vectoring (TV) capability is studied. First, a baseline optimal TV strategy is sought, independent of any causal control law. An optimal control problem (OCP) is initially formulated considering 4 independent wheel torque inputs, together with the steering angle rate, as the control variables. Using this formulation, the performance benefit using TV against an electric drive train with a fixed torque distribution, is demonstrated. The sensitivity of TV-controlled manoeuvre time to the passive understeer gradient of the vehicle is then studied. A second formulation of the OCP is introduced where a closed-loop TV controller is incorporated into the system dynamics of the OCP. This formulation allows the effect of actively modifying a vehicle's handling characteristic via TV on its minimum time cornering performance of the vehicle to be assessed. In particular, the effect of the target understeer gradient as the key tuning parameter of the literature-standard steady-state linear single-track model yaw rate reference is analysed.en_UK
dc.identifier.citationE. N. Smith, E. Velenis, D, et al., (2018) Effect of handling characteristics on minimum time cornering with torque vectoring. Vehicle System Dynamics, Volume 56, 2018, Issue 2, pp. 221-248en_UK
dc.identifier.issn0042-3114
dc.identifier.urihttp://dx.doi.org/10.1080/00423114.2017.1371771
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/12637
dc.language.isoenen_UK
dc.publisherTaylor and Francisen_UK
dc.rightsAttribution-NonCommercial 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectTorque vectoringen_UK
dc.subjectvehicle handlingen_UK
dc.subjectelectric vehiclesen_UK
dc.subjectoptimal controlen_UK
dc.subjectyaw rate referenceen_UK
dc.subjectminimum timeen_UK
dc.titleEffect of handling characteristics on minimum time cornering with torque vectoringen_UK
dc.typeArticleen_UK

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