- Developed an Acoustic AI system that analyzes subtle sounds
from production processes and applies them to the Changwon EPS
(Electric Power Steering) plant.
- AI technology tailored for manufacturing… Analyzing the
operational sounds of products to inspect for defects at a rate of
one per second.
SEOUL, South Korea,
June 19, 2024 /PRNewswire/ -- Hyundai
Mobis (KRX: 012330) has developed an AI system utilizing sound for
quality inspection, which is now implemented in its production
lines. This innovative approach leverages artificial intelligence
to analyze the subtle sounds generated during product inspection to
determine quality accuracy.
On June 18th, Hyundai
Mobis announced that it has recently completed a pilot
implementation of an Acoustic AI-based inspection system at its
Changwon plant, which produces EPS.
Acoustic AI represents a new generation of artificial
intelligence technology, distinguished from generative AI, which
relies on language for Q&A tasks. It remains relatively
untested in the manufacturing industry.
The key to Acoustic AI is developing algorithms that assign
meaning to specific sounds and facilitate appropriate judgments.
Hyundai Mobis has invested significant effort in developing various
AI-based technologies over the past few years, now showcasing
production technologies specialized in quality control.
Hyundai Mobis plans to extend the Acoustic AI inspection system
from the Changwon plant to other component production lines,
prioritizing parts like braking systems that inherently generate
noise due to their operational nature.
Choi Nak-Hyun, Vice President and
Head of Digital Transformation at Hyundai Mobis, stated, "This
initiative marks a pioneering example of process innovation not
only in the automotive sector but across the global manufacturing
industry. We will continue introducing differentiated AI-based
technologies for production, R&D, and improvements in work
environments."
- Analyzes the EPS (Electric Power Steering) Motor Sound
Waveform… AI Inspects Quality of One Unit Per Second
While generative AI emphasizes versatility for general users,
Acoustic AI is designed for industrial applications, especially
smart factories. Its primary advantage is processing large volumes
of tasks in a short time. The inspection system at the Changwon
plant can detect defective products at a rate of one unit per
second.
The Changwon plant produces approximately 1.3 million units of
EPS annually. The production process includes 23 stages, from
component assembly to vibration and noise inspection.
Since EPS directly impacts steering performance and safety
through the steering wheel, meticulous quality checks are
essential. Noise inspections are conducted by connecting actual
power to the EPS. The sound generated by the rotating motor creates
a consistent waveform, which the AI analyzes to identify deviations
or anomalies.
Previously, suspect defective products below a certain threshold
were initially filtered by an automated system after assembly,
followed by manual reevaluation by specialized personnel. To
enhance quality competitiveness, Hyundai Mobis collaborated for
about a year with on-site engineers, production technology experts,
and AI specialists holding advanced degrees to gather and analyze
data, successfully developing Acoustic AI. This system can now
distinguish defective products and their causes.
Hyundai Mobis plans to validate and expand the application of
Acoustic AI. In the manufacturing sector, the company aims to
continuously collect meaningful data through its pioneering
Acoustic AI and develop proprietary AI models based on this data.
The accuracy of this trained AI is expected to improve further.
(End)
Media Contact
Choon Kee Hwang: ckhwang@mobis.com
Myong Sun Song: sms@mobis.com
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