Effects of transient powertrain shift dynamics on vehicle handling Online publication date: Wed, 21-Dec-2005
by Taehyun Shim, Yi Zhang
International Journal of Vehicle Design (IJVD), Vol. 40, No. 1/2/3, 2006
Abstract: This paper investigates the effect of drive shaft torque variations during transmission shifts on vehicle handling performance. In this paper, a lumped mass model for a four-speed automatic transmission powertrain and a 14-degrees-of-freedom vehicle model have been developed and used jointly for the simulation of vehicle transient behaviour during the shift processes. In the investigation, the powertrain model is used as the preprocessor to obtain realistic drive shaft torque that reflects the torque variations intrinsic of transmission shifts. The drive shaft torque thus obtained then serves as the input for the vehicle suspension model. This approach provides better accuracy for vehicle handling analysis than the existing approach that assumes a steady-state axle torque. A mid-size sedan was used as an example in the investigation. Based on model simulation, vehicle responses to powertrain shift transients under various road conditions were quantitatively analysed and compared with that obtained by the existing method.
Online publication date: Wed, 21-Dec-2005
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Vehicle Design (IJVD):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email email@example.com