MSC Software Corporation

Noise/vibration/harshness (NVH) and fuel economy often must be traded off against each other during the vehicle design process.

When developing a new vehicle model, engineers are responsible for meeting a wide variety of often conflicting performance targets. Fuel economy and NVH are two of the most important categories of targets.

• This case study successfully demonstrates the FMI integration approach for vehicle lugging NVH assessment
• Effectively coupled AMESim Converter Controller model with Adams Driveline and Vehicle model
• An Optimum Torque Converter slip speed was determined meeting lugging target requirement while balancing with fuel economy
• Simulation results showed drivetrain torsional vibration along with vehicle vibration (steering wheel & seat track) were effectively reduced with converter slip