This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Vehicle Driveability: Dynamic Analysis of Powertrain System Components
Technical Paper
2016-01-1124
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The term driveability describes the driver's complex subjective perception of the interactions with the vehicle. One of them is associated to longitudinal acceleration aspects. A relevant contribution to the driveability optimization process is, nowadays, realized by means of track tests during which a considerable amount of driveline parameters are tuned in order to obtain a good compromise of longitudinal acceleration response. Unfortunately, this process is carried out at a development stage when a design iteration becomes too expensive. In addition, the actual trend of downsizing and supercharging the engines leads to higher vibrations that are transmitted to the vehicle. A large effort is therefore dedicated to develop, test and implement ignition strategies addressed to minimize the torque irregularities. Such strategies could penalize the engine maximum performance, efficiency and emissions. The introduction of the dual mass flywheel is beneficial to this end. Nevertheless, its role on the vehicle driveability, as well as that of other driveline components, is not yet so clear. The aim of the present work is to establish which are the main driveline components affecting the filtering behavior of the transmission and how their parameters can be tuned in order to improve the vehicle ability to respond to driver’s different demands without negative impact on his comfort. A complete nonlinear coupled torsional and longitudinal vehicle dynamic model is proposed to this end. The model is validated both in time and frequency domain and allows linearization of its nonlinear components.
Recommended Content
Authors
Citation
Castellazzi, L., Tonoli, A., Amati, N., Piu, A. et al., "Vehicle Driveability: Dynamic Analysis of Powertrain System Components," SAE Technical Paper 2016-01-1124, 2016, https://doi.org/10.4271/2016-01-1124.Also In
References
- List , H. and Schoeggl , P. Objective Evaluation of Vehicle Driveability SAE Technical Paper 980204 1998 10.4271/980204
- Dorey , R. and Holmes , C. Vehicle Driveability - Its Characterisation and Measurement SAE Technical Paper 1999-01-0949 1999 10.4271/1999-01-0949
- Choi , Y.C. , Song H.B. , Lee J.H. , Cho H.S. An Experimental Study for Drivability Improvements in Vehicle Acceleration Mode Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 217 7 2003 10.1243/095440703322115004
- Couderc , P. , Callenaere , J. , Der Hagopian , J. , Ferraris , G. , Kassai , A. , Borjesson , Y. , Verdillon , L. , Gaimard , S. Vehicle Driveline Dynamic Behaviour: Experimentation and Simulation Journal of Sound and Vibration 218 sv981808 1998 10.1006/jsvi.1998.1808
- Capitani , R. , Delogu , M. , and Pilo , L. Analysis of the influence of a vehicle's driveline dynamic behaviour regarding the performance perception at low frequencies SAE Technical Paper 2001-01-3333 2001 10.4271/2001-01-3333
- Sorniotti , A. Driveline Modeling, Experimental Validation and Evaluation of the Influence of the Different Parameters on the Overall System Dynamics SAE Technical Paper 2008-01-0632 2008 10.4271/2008-01-0632
- Pacejka , H. , Besselink , I. Tire and Vehicle Dynamics Third Elsevier 978-0-08-097016-5 2012