Introduction to NVH Aspects of Hybrid and Electric Vehicles     

On-site
Delivery
Open
Enrollment

I.D.# C1128Printable Description
Duration: 1 Day
June 2, 2014 (8:30 a.m. - 4:30 p.m. ) - Troy, Michigan  

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The influx of different hybrid and electric vehicle configurations has brought about unique NVH challenges from a variety of sources. NVH refinement is an important aspect of powertrain development and the vehicle integration process. While developing the NVH behavior of the vehicle is critical to satisfy customer expectations, it is also important to consider the influence of reduced exterior noise levels on pedestrian safety. This seminar introduces participants to basic NVH principles and unique NVH challenges encountered in the development of HEV, ReEV, and EV including engine start/stop behavior, electric motor whine, driveline NVH, body structure, influence of noise from accessories, and sound quality development, as well as potential countermeasures.

Learning Objectives
Upon completion of this seminar, you will be able to:

  • Articulate the basic principles of NVH
  • Describe the relative importance of powertrain noise, wind noise, and road noise in the vehicle’s interior
  • Identify the key sub-components of powertrain noise and means to control them
  • Explain the key NVH issues specific to electrified vehicles and means to develop appropriate countermeasures
  • Identify key metrics available to assess the NVH performance of electrified vehicles
  • Develop an awareness of advanced NVH methodologies available to design the sound character of electrified vehicle

Who Should Attend
This seminar has been developed for engineers involved in all fields related to the design or development of electrified vehicles. Individuals involved with component design/release responsibilities in ICE, electric motor, transmissions, powertrain mounts, vehicle body, and chassis areas will find this course helpful.

Prerequisites
An undergraduate degree in engineering or a strong technical background is highly recommended. A basic knowledge of college algebra, college physics, and a familiarity with vehicle and powertrain systems is needed.

Topical Outline

  • Automotive NVH Fundamentals
    • Fundamentals of noise, vibration, and sound quality
    • Vehicle NVH
    • Powertrain-induced interior noise
    • Engine noise
    • Transmission noise
    • Driveline noise
    • Intake noise
    • Exhaust noise
    • Road-induced noise
    • Wind noise
    • Vehicle interior noise simulation for powertrain-induced noise
    • Vehicle interior noise simulation for road-induced noise
    • Vehicle sound quality
    • Vehicle exterior noise simulation
  • HEV, ReEV, PHEV, and EV NVH
    • HEV, ReEV, PHEV, and EV architecture definition
    • “Road Map” for vehicle NVH development of HEV, ReEV, PHEV, and EV
    • ICE start/stop noise using case study examples
    • ICE start/stop vibration using case study examples
    • Active control for start/stop refinement using case study examples
    • Motor NVH using case study examples
    • HEV/EV driveline NVH using case study examples
    • Power electronics noise
    • Accessory noise
    • Application of powertrain-induced vehicle interior noise simulation
    • Application of road-induced vehicle interior noise simulation
    • Sound character of EV using case study examples
    • Sound character of ReEV using case study examples
    • Exterior noise considerations for EV and ReEV

Instructor(s): Kiran Govindswamy
Kiran Govindswamy is currently the Director of NVH, Driveline and Vehicle Integration at the North American Technical Center of FEV, Inc. where he is responsible for automotive NVH, structural dynamics, acoustics, transmissions, driveline systems, and full vehicle integration. He is a member of SAE International, serves on the SAE NVH Conference Committee, and contributes regularly to several automotive publications focusing on vehicle driveline systems and NVH. His educational background includes a Bachelor’s Degree in Mechanical Engineering from the College of Engineering Pune, India and Master’s and Doctoral Degrees from the Pennsylvania State University.

Fees: $755.00 ; SAE Members: $605.00 - $685.00

.7 CEUs
You must complete all course contact hours and successfully pass the learning assessment to obtain CEUs.

To register, click Register button at the top of this page and submit the online form, or contact SAE Customer Service at 1-877-606-7323 (724/776-4970 outside the U.S. and Canada) or at CustomerService@sae.org.

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