This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
CAE Simulation and Experimental Testing of a CVT Vehicle Shuffle
Technical Paper
2006-01-1308
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A low-frequency vehicle shuffle can be excited when a reversal of torque occurs in a vehicle's drivetrain. It usually occurs during a throttle tip-in or tip-out event, or a static engagement shift event. This drivetrain shuffle vibration can introduce a vehicle fore-aft vibration that may affect the customer satisfaction of ride comfort and/or powertrain performance. Vehicle test data of the seat track acceleration from a 30 MPH wide-open-throttle tip-out event suggested a strong coupling between the CVT drivetrain shuffle and vehicle fore-aft vibration. An ADAMS based CVT model was developed and integrated into a full vehicle model for dynamic simulation of this vehicle shuffle issue. CAE DOE studies were performed to identify key vehicle and powertrain design parameters that could directly impact the vehicle shuffle vibration. Experimental tests were performed to verify the CAE design improvements of the CVT vehicle shuffle vibration. Primary benefits of this developed model are to provide upfront CAE and multi-attribute optimization to achieve better ride comfort, driveability, and shift quality in CVT vehicles.
Recommended Content
Topic
Citation
Liu, J. and Fox, J., "CAE Simulation and Experimental Testing of a CVT Vehicle Shuffle," SAE Technical Paper 2006-01-1308, 2006, https://doi.org/10.4271/2006-01-1308.Also In
References
- Volinski B. “Methodology: Automatic Transaxle Lash Study for Park Disengagement Clunk” SAE Paper 1999-01-1765
- Govindswamy K. Hueser M. D'Anna T. Diemer P. Roxin C. “Study of low-frequency driveline clunk during static engagements” SAE Paper 2003-01-1480
- Gilbert D.A. O'Leary M. F. Rayce J. S. “Integrating Test and Analytical Methods for the Quantification and Identification of Manual Transmission Driveline Clunk” SAE Paper 2001-01-1502
- Krentz R.A. “Vehicle Response to Throttle Tip-In/Tip-Out” SAE Paper 850967
- Nessler G. Stokes W. Beikmann R. Curtis J. Mitchell T. “Roll-down process development for transmission garage shift quality” SAE Paper 2001-01-1500
- Chae C. Lee Y. Won K. Kang K. “Experimental and Analytical Approach for Identification of Driveline Clunk Source & Transfer Path” SAE Paper 2004-01-1231
- Liu S.P. Erlandson P. “A Non-Linear Transient CAE Method for Vehicle Shift Quality Prediction” 2006 SAE World Congress publication, SAE paper 06P-60
- Horste K. “Objective measurement of automatic transmission shift feel using vibration dose value” SAE Paper No. 951373
- Crowther A.R Zhang N. “Development of a Clunk Simulation Model for a Rear Wheel Drive Vehicle with Automatic Transmission” SAE Paper 2005-01-2292