Skip to main contentEngineering Courses, Mentoring & Jobs | EveryEng
Are Electrical Vehicles really silent ? banner

Are Electrical Vehicles really silent ?

2 min of video

+1 enrollmentsin the last 30 days
Steady pace vs prior 150-day average

1 enrolled

Are Electrical Vehicles really silent ? banner
Self-paced Intermediate

Are Electrical Vehicles really silent ?

4(9)
1 enrolled
955 views
FREE
91 min
Anytime
English
MILIND AMBARDEKAR
MILIND AMBARDEKARConsultant
  • Lifetime access
  • Certificate of completion
  • Interactive Video Lessons
  • Completion Certificate
Volume pricing for groups of 5+

Why enroll

Electrification is a buzz word in Automotive Industries across the world since they drastically reduce the green-house emissions. Overall their motor is much quieter than that of a typical gasoline or diesel engine with absence of intake and exhaust tail pipe noises.

But still are they comfortable from point of total quietness; are they totally vibration free ?

Under heavy torque, electromagnetic forces between stator and rotors create a tonal sound from the motor-train; unless they are controlled, the EV passengers will have a harsh In-cab sound feel inside the cabin at low & mid speeds.

Added to them, tyre/ road noise and wind noise at high speeds will deprive the overall quietness of the EVs if the design rules are not followed. Driveline jerks in regenerative braking are irritating as well.

Large Electric Buses have their own challenges due to larger acoustic cavity resonance and driveline torsional vibrations.

And now EV- racing cars are coming up and vehicle designers are struggling to get their Sportive Sound at par with those of traditional powerful multi-cylinder ICE vehicles

This session should be thus perfect for Managers, Engineers and students eager to understand EV dynamics and make them comfortable against every sound & vibration sources while cruising on road with right countermeasures

Is this course for you?

You should take this if

  • You work in Automotive
  • You're a Electrical / Mechanical professional
  • You have some foundational knowledge in the subject
  • You prefer self-paced learning you can revisit

You should skip if

  • You're looking for an introductory overview course
  • You need a different specialisation outside Electrical
  • You need live interaction with an instructor

Course details

Learn why Electric Vehicles (EVs) aren't as silent as they seem!

This session dives into the unique NVH (noise, vibrations, harshness) challenges posed by electric motors, inverters, transmission, driveline and other auxiliary systems.

Though they are much quieter as compared with their counterparts of ICE [internal combustion engine] vehicles, over a wide frequency range, there is special Tonality induced discomfort to the EV passengers if no proper action is taken during design and development.

Course suitable for

Key topics covered

1. Sound Balance difference between ICE vehicles and EVs at different speeds

2. Electromagnetic whine of motors

3. Transmission forces

4. Driveline dynamics

5. Cooling Fan noise, Battery charging , HVAC

6. Brake Vacuum pump on/off

7. Tyre/ road and wind noise

8. Electric Buses - special challenges for NVH

9. EV -racing cars and their sportive sound

Course content

The course is readily available, allowing learners to start and complete it at their own pace.

2 lectures1 hr 31 min

Opportunities that await you!

Career opportunities

+1 enrollmentsin the last 30 days
Steady pace vs prior 150-day average

Our Alumni Work At

Why people choose EveryEng

Industry-aligned courses, expert training, hands-on learning, recognized certifications, and job opportunities-all in a flexible and supportive environment.

What learners say about this course

Moin  Mujawar
Moin Mujawar CAE analyst
Apr 9, 2026

The Course structure was very constructive. Milind Sir has extensive experience in NVH & Acoustics domain. The way he explained NVH and acoustics concepts made even complex topics easy to understand and apply. His practical insights and structured approach added great value to the learning experience. I truly found this course to be highly informative and beneficial, and I would strongly recommend

Prem Kumar
Prem Kumar PCB
Mar 4, 2026

.

Namdev Gaikwad
Namdev Gaikwad Student
Feb 25, 2026

Initially, I wasn’t sure what to expect from this course, given I’ve already dealt with vibration issues on real programs. Coming from an automotive background, the sections on BSR, rough-road excitation, and hydro-mount tuning directly mirrored problems seen during vehicle launch phases. The link between FFT-based signal processing and order tracking finally closed a gap that had been mostly handled by trial-and-error on past projects. The aerospace examples around rotor dynamics and modal testing were also useful, especially when comparing high-speed rotating assemblies to driveline torsional vibration cases. Even the agriculture-related references, like vibration exposure on tractor powertrains and operator comfort, felt grounded and not academic. One challenge was keeping up with the depth of the FE eigenvalue methods combined with multi-body dynamics; that took a couple of replays to digest. A practical takeaway was a clearer workflow for vibration root-cause analysis, from measurement through transfer path analysis, instead of jumping straight to hardware fixes. Some concepts, like non-linear vibration behavior, pushed outside daily work, but they helped explain issues that never quite fit linear models. The content felt aligned with practical engineering demands.

Avatar icon
LOGESH VC
Feb 25, 2026

This course turned out to be more technical than I anticipated. The depth around resonance management and damping modeling went beyond the usual textbook treatment, especially when finite element eigenvalue analysis was tied directly to experimental modal testing. That linkage mirrors how we actually validate models in automotive NVH work, not how it’s often idealized. One area that stood out was the treatment of driveline torsional vibrations and order tracking. In automotive and agricultural machinery, those low-order excitations are where most field complaints live, yet they’re often oversimplified. The discussion around edge cases—like speed-dependent mode coupling and mount nonlinearity—was refreshingly honest. On the aerospace side, the contrast between vibration dose values and fatigue-driven design practices highlighted how different industries prioritize risk. A real challenge was keeping the signal processing concepts straight once FFT, TPA, and rotor balancing were layered together. The examples helped, but it still required revisiting some fundamentals to avoid misinterpreting spectra in transient conditions. A practical takeaway was a clearer workflow for root-cause vibration investigations, from measurement strategy through system-level mitigation, rather than jumping straight to component fixes. That mindset aligns well with industry practice and avoids costly rework. It definitely strengthened my technical clarity.

FREE

Access anytime

Questions and Answers

Q: You're validating pedestrian noise for a new EV variant and you google: "ISO standard minimum sound level electric vehicle pedestrian noise". During a 10 km/h pass-by, the measured A‑weighted level meets the numeric minimum, yet pedestrians still fail to detect the vehicle early. What requirement intent is being violated?

A: Early detectability comes from frequency placement where human hearing is most sensitive, not just total energy; B explains test validity not intent, C shifts level slightly but doesn't remove detectability, and D affects reporting but not the spectral cue pedestrians rely on.