NVH End-of-Line (EoL) Testing

HBK’s end of line NVH solutions ensure every product meets strict acoustic, vibration and functional requirements. Production ready systems combine robust hardware, advanced NVH software and specialised EoL expertise to deliver fast, reliable pass/fail results at full takt time.

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What is NVH End-of-Line Testing?

Noise, Vibration and Harshness (NVH) end-of-line testing verifies the acoustic and dynamic behaviour of every unit directly in production.

Key objectives:

• Detect noise, vibration, and functional defects before shipment

• Ensure consistent customer-perceived quality

• Correlate production results with vehicle and test-bench behaviour

• Enable automated, repeatable pass/fail decisions

NVH EoL testing is a critical quality gate for modern powertrain and driveline manufacturing – especially for electric and hybrid systems, where acoustic behaviour is highly sensitive.

HBK NVH End-of-Line Solutions

Production-proven NVH testing systems for high-volume manufacturing
Automated acoustic and vibration analysis in cycle time
Scalable architectures for conventional, hybrid, and electric drivetrains
Data-driven insight for continuous quality improvement

Main Applications

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Transmissions and gearboxes
Electric motors and e-drives
Combustion engines
Axles and driveline components
Actuators and rotating assemblies

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Transmissions and gearboxes

In transmission production, even small manufacturing defects can lead to noise, premature wear, or costly complaints. Discom provides a proven end-of-line testing solution that reliably detects defects in gear wheels, bearings, and shifting mechanisms—inside closed transmission modules. Combining structure-borne sound sensors with powerful analysis software, Discom enables 100% testing and precise localization of faulty components, while giving production teams the insights needed to optimize processes in time.

Electric motors and e-drives

Electric drives place new demands on production quality. In quiet electric vehicles, even minor production or assembly inaccuracies in electric motors and power transmissions can lead to clearly perceptible noise. Discom’s high-precision acoustic end-of-line testing solutions reliably detect and localize these errors—at component level and across the entire drive module—ensuring consistently high quality before series production.

Ensuring the desired service life of engines

Combustion engines

To achieve the desired service life, combustion engines must leave production free of component defects and assembly errors. Discom’s acoustic end-of-line testing solutions verify both the manufacturing quality of individual components and the functional integrity of the complete engine. Using advanced sensors and specialized analysis software, defects are detected quickly, reliably, and precisely—before engines reach the customer.

Axles and driveline components

Axles and driveline components depend on flawless gear quality to ensure efficiency, durability, and low noise. Discom’s gear testing solutions provide highly accurate measurement of individual gears and gear pairs for 100% production testing. By combining the TAC torsional acceleration sensor with the TasAlyser analysis software, manufacturing defects are detected reliably and their causes are clearly identified—ensuring consistent quality in series production.

Actuators and rotating assemblies

Actuators play a key role in vehicle comfort and functionality—and rising customer expectations, especially in electric vehicles, place increasing demands on their acoustic quality. Discom’s acoustic end-of-line testing solutions reliably detect production-related errors in actuators and rotating assemblies. By combining specialized sensors with powerful analysis software, manufacturing quality is safeguarded and continuously improved.

Full Measurement Chain Coverage

HBK covers the entire NVH end-of-line measurement chain – from sensors to actionable decisions – in one integrated solution.

NVH Software (HBK/Discom technology)
Real-time analysis, order tracking, automated feature extraction, classification, and pass/fail evaluation
Accelerometers
High-precision vibration measurement for structure-borne noise and defect detection
Microphones
Accurate airborne noise capture in production environments
Torque Sensors
Correlation of NVH behaviour with mechanical load and functional performance

Together, these components deliver synchronous, repeatable, and traceable NVH results – fully optimised for end-of-line operation and seamless integration into production systems.

Ensuring quality at the End Of Line

With Discom, you can detect production defects, assess acoustic quality, and identify root causes of NVH issues.

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FAQs

Yes, Discom provides the complete measurement chain for NVH end-of line testing, including sensors, DAQ hardware, and analysis software for integration into the test stand.

Yes, the 256  pulses per revolution are sufficient.

Download Whitepaper:

Optimising End-of-Line Testing with Advanced Sensor Technology

In this exclusive whitepaper, you’ll learn:

How to achieve consistent, accurate measurements in noisy production environments
Why real-time preload verification is critical for quality assurance
How integrated software solutions streamline testing and boost efficiency

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Find Your Sensor

NVH End-of-Line (EoL) Testing

What is NVH End-of-Line Testing?

HBK NVH End-of-Line Solutions

Main Applications

Full Measurement Chain Coverage

Ensuring quality at the End Of Line

FAQs

Download Whitepaper:

Optimising End-of-Line Testing with Advanced Sensor Technology

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Main Menu

Main Menu

Main Menu

Main Menu

Find Your Sensor

NVH End-of-Line (EoL) Testing

What is NVH End-of-Line Testing?

HBK NVH End-of-Line Solutions

Main Applications

Full Measurement Chain Coverage

Ensuring quality at the End Of Line

FAQs

Does Discom deliver all necessary equipment as a single‑source provider?

Are the pulses per revolution of the T40Lite sufficient for NVH end-of-line testing?

Download Whitepaper:

Optimising End-of-Line Testing with Advanced Sensor Technology

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