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Drivability analysis of through-the-road-parallel hybrid vehicles

Galvagno, E, Morina, D, Velardocchia, M and Sorniotti, A (2012) Drivability analysis of through-the-road-parallel hybrid vehicles Meccanica. pp. 1-16.

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Abstract

In the last decade, Hybrid Electric Vehicles (HEVs) have spread worldwide due to their capability to reduce fuel consumption. Several studies focused on the optimisation of the energy management system of hybrid vehicles are available in literature, whilst there are few articles dealing with the drivability and the dynamics of these new powertrain systems. In this paper a 'Through-the-Road-Parallel HEV' is analysed. This architecture is composed of an internal combustion engine mounted on the front axle and an electric motor powering the rear one. These two powertrains are not directly connected to each other, as the parallel configuration is implemented through the road-tyre force interaction. The main purpose of this paper is the drivability analysis of this layout of HEVs, using linearised mathematical models in both time (i.e. vehicle response during tip-in tests) and frequency domain (i.e. frequency response functions), considering the effect of the engaged gear ratio. The differences from a traditional Front-Wheel-Drive (FWD) configuration are subsequently highlighted. Furthermore, the authors compare different linearised dynamic models, with an increasing number of degrees of freedom, in order to assess which model represents the best compromise between complexity and quality of the results. Finally, a sensitivity analysis of the influence of the torque distribution between the front (thermal) and rear (electric) axles on vehicle drivability is carried out and presented in detail. © 2012 Springer Science+Business Media Dordrecht.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
AuthorsEmailORCID
Galvagno, EUNSPECIFIEDUNSPECIFIED
Morina, DUNSPECIFIEDUNSPECIFIED
Velardocchia, MUNSPECIFIEDUNSPECIFIED
Sorniotti, AUNSPECIFIEDUNSPECIFIED
Date : 2012
Identification Number : 10.1007/s11012-012-9606-6
Additional Information : The original publication is available at http://www.springerlink.com
Depositing User : Symplectic Elements
Date Deposited : 04 Mar 2014 11:12
Last Modified : 09 Jun 2014 13:37
URI: http://epubs.surrey.ac.uk/id/eprint/795424

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