Full Vehicle Dynamic Modeling for Engine Shake with Hydraulic Engine Mount

Paper #:
  • 2017-01-1908

Published:
  • 2017-06-05
DOI:
  • 10.4271/2017-01-1908
Citation:
Guo, R., Gao, J., Wei, X., Wu, Z. et al., "Full Vehicle Dynamic Modeling for Engine Shake with Hydraulic Engine Mount," SAE Technical Paper 2017-01-1908, 2017.
Pages:
11
Abstract:
The statement of the engine shake problem is presented through comparing the quarter vehicle models with the rigid-connected and flexible-connected powertrain which is supported on the body by a rubber mount. Then the model is extended by replacing the rubber mount as a hydraulic engine mount (HEM) with regard to the inertia and resistance of the fluid within the inertia track. Based on these, a full vehicle model with 14 degree of freedoms (DOFs) is proposed to calculate the engine shake, which consists of 6 of the powertrain, 1 of the fluid within the inertia track of the HEM, 3 of the car body and 4 of the unsprung mass. Simulation analysis based on the proposed model is implemented, through which the conclusion is drawn that the HEM has great influence on the body and seat track response subjected to front wheel inputs, compared with the rubber mount.
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