Kepo Electronics

Kepo Electronics Focusing on AI field to create fabulous HMI products in continuous exploring core technology.

Same safety goal. Different AVAS rulebooks.UN R138 and FMVSS 141 both aim to make quiet vehicles detectable at low speed...
14/08/2026

Same safety goal. Different AVAS rulebooks.

UN R138 and FMVSS 141 both aim to make quiet vehicles detectable at low speeds, but they take different technical approaches.
UN R138
• Focuses mainly on operation up to 20 km/h
• Defines minimum overall and frequency-band requirements
• Requires sound frequency to change with vehicle speed
• Sets a 75 dB(A) maximum under specified test conditions
FMVSS 141
• Covers stationary, reverse and forward operation up to 30 km/h
• Uses frequency-band compliance paths
• Requires relative volume changes between speed conditions
• Does not set an equivalent overall maximum
For global AVAS development, compliance is not simply about adjusting volume. Operating conditions, frequency structure, speed response and validation methods must all reflect the target market.
KEPO supports market-oriented AVAS system configuration and sound strategy development.
One safety objective does not always mean one sound solution.

Electric vehicles are quiet at low speeds. That quietness is part of their appeal, but in shared urban spaces, it also m...
13/08/2026

Electric vehicles are quiet at low speeds. That quietness is part of their appeal, but in shared urban spaces, it also means the vehicle needs another way to be noticed.

Pedestrians, cyclists, children, older adults, and mobility-aid users do not all perceive traffic in the same way. A vehicle that is visible may still be hard to notice when it approaches slowly from the side, from behind, or through a busy street scene. This is where AVAS becomes more than a compliance component: a clear external sound can help people outside the vehicle understand that it is present, moving, and nearby.

The goal is not simply to make the sound louder. It should be noticeable without being harsh, recognizable without becoming noise pollution, and consistent enough to build everyday trust. At KEPO, we see AVAS as a bridge between safety, acoustic design, and inclusive mobility: helping EVs stay quiet where they should be quiet, and heard when people nearby need to know they are there.

A welcome experience should not begin on a screen.Before the driver touches the door, the vehicle has already started to...
07/08/2026

A welcome experience should not begin on a screen.

Before the driver touches the door, the vehicle has already started to communicate: a soft light sequence, a clear exterior sound, a first signal that the car is awake and ready.

With AVAS, exterior sound can become more than a regulatory alert. It can support approach, unlock, door opening and power-on moments, helping the vehicle create a more refined first interaction.

For EV programs, the question is no longer only “Can the vehicle be heard?”

It is also:
Can the vehicle sound considered, recognizable and intentional?

Not every EV should sound the same.A sports model, a high-riding SUV and a business vehicle may share the same safety re...
07/08/2026

Not every EV should sound the same.

A sports model, a high-riding SUV and a business vehicle may share the same safety requirement, but they do not share the same character.

That is where AVAS sound design becomes more interesting.

A sharper tone can support a more futuristic sports EV.
A deeper, warmer sound can give an SUV stronger presence.
A smoother, low-intrusion sound can better fit a premium business model.

The alert is still about safety.
But the sound can also reflect the vehicle.

For OEM and Tier 1 programs, AVAS is becoming a space where compliance, acoustic tuning and vehicle positioning meet.

Dynamic ambient lighting effects may look simple from inside the cabin, but making them work consistently in production ...
30/07/2026

Dynamic ambient lighting effects may look simple from inside the cabin, but making them work consistently in production requires much more than changing LED colors.

Take two common effects as examples:
Flowing light depends on precise timing between lighting segments. The transition needs to look continuous across the dashboard, door panel, and trim parts, even when the light path is interrupted by different structures.
Breathing light depends on smooth dimming control. Brightness curves, color transitions, and fade-in / fade-out timing all affect whether the effect feels natural and stable, or visually uneven.

For engineering teams, the key challenges usually come from the details:
Light guide structure and diffusion uniformity
LED binning and color consistency
PWM dimming and brightness curve control
LIN / CAN signal coordination with vehicle modes
Validation across temperature, material, and assembly tolerance
A good dynamic ambient lighting system is not only about the effect shown in a demo. It is about whether the same effect can remain stable, consistent, and manufacturable across real vehicle programs.
At KEPO, we support automotive ambient lighting development from optical structure and component integration to dynamic effect implementation, helping engineering teams bring cabin lighting concepts into production-ready solutions.

What if ambient lighting could do more than set the mood?In the next generation of vehicle interiors, ambient light can ...
24/07/2026

What if ambient lighting could do more than set the mood?

In the next generation of vehicle interiors, ambient light can become an intuitive extension of the HMI—turning safety alerts into clear, directional visual cues.

• Blind-spot warning: highlight the side of the cabin where attention is needed.
• Lane-departure alert: reinforce the warning through a brief directional light sequence.
• Door-opening reminder: signal approaching traffic before a passenger opens the door.

The value is not simply making warnings brighter. It is about placing information closer to the source of risk and helping drivers and passengers understand where their attention is needed—without adding another screen.

At KEPO, we continue exploring how light, sound, and interaction can work together to create a safer and more intuitive cabin.

Which safety scenario would you prioritize for ambient-light integration?

Not every warning in the vehicle needs to go through the speaker system.For basic alert scenarios such as engine abnorma...
17/07/2026

Not every warning in the vehicle needs to go through the speaker system.

For basic alert scenarios such as engine abnormality warning, what matters most is not richness of sound, but clarity, immediacy, and reliability.

That is why piezo buzzers still matter.

Compact, direct, and cost-efficient, they remain a practical solution when the goal is simple: deliver a warning the moment it is needed.

For product teams and sourcing teams, the better choice in simple warning scenarios is sometimes not to route everything through a speaker-based audio path, but to use a dedicated component for a dedicated job.

Sometimes one clear beep is exactly what good warning design needs.

One supplier, four cabin touchpoints.From door trim lighting and starlight headliners to illuminated sill plates and pud...
17/07/2026

One supplier, four cabin touchpoints.

From door trim lighting and starlight headliners to illuminated sill plates and puddle lamps, ambient lighting is no longer just a decorative add-on.

It is becoming part of how the cabin communicates.

When these touchpoints are planned together, they can create a more consistent visual language, a stronger premium feel, and a clearer path from concept to SOP.

At KEPO, we see interior lighting not as separate parts, but as one coordinated cabin solution.

03/07/2026

Effective 7 July 2026: the EU makes Advanced Driver Distraction Warning (ADDW) mandatory for every new vehicle registered in the EU. Under Annex I, §3.4, the warning can't rely on a single channel — it has to be visual, plus acoustic and/or haptic.

Here's how we've built it: our in-cabin camera detects distraction, and the response is immediate — the seat vibrates, the ambient lighting flashes, and an audio alert sounds, together. This is multi-modal warning: not one signal, but three senses responding as one system.

Our view: cabin HMI is moving from single-channel alerts to multi-modal response, and the suppliers who design detection and output together — not as separate products — are the ones shaping where cabin safety goes next.

🎉 Three days at Europe 2026 are a wrap — thank you to everyone who visited us at Booth 3118 in Stuttgart.Our message t...
26/06/2026

🎉 Three days at Europe 2026 are a wrap — thank you to everyone who visited us at Booth 3118 in Stuttgart.

Our message there was simple: we didn't come with concepts.

✔️ Ambient Lighting — Logo Lamp, Puddle Lamp, dashboard and door lighting — in series production today
✔️ 4D Exciter — our seat-mounted vibration platform — already in multiple production vehicles, turning safety alerts and music into physical feedback

Everything built to IATF 16949, supplied to Tier 1s and OEMs across Asia, Europe, the Middle East, and the Americas.

As our VP Frank Wang put it: "Interior experience is no longer a finishing touch — it's part of how a vehicle is judged."

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