Abstract
Keywords: Hybrid Vehicle, Start-Up Shake, Shut-Down Shake, Torque Roll Axis, Static Roll Axis
This paper describes the use of multi-body dynamic models to investigate the root causes of engine start-up and shut-down shake and to support the development of suitable countermeasures.
The creation of a correlated dynamic model of a diesel-hybrid powertrain is shown and the root causes of shake and the key parameters controlling the phenomenon are discussed. The development of a revised powertrain mounting system is presented and its effectiveness demonstrated with measured data.
Conclusions are made regarding the best application of this methodology and about its suitability during the vehicle development process.