context

An automotive OEM approached Subros with a requirement for a dual-zone HVAC control panel, one that would allow the driver and co-driver to independently control their cabin temperature.

Recognizing that our manufacturing capability and cost structure positioned us competitively for this product category, the decision was made to develop this as an original Subros product, expanding our portfolio beyond thermal systems into cabin control interfaces with potential revenue impact of 5-10%.

context

An automotive OEM approached Subros with a requirement for a dual-zone HVAC control panel, one that would allow the driver and co-driver to independently control their cabin temperature.

Recognizing that our manufacturing capability and cost structure positioned us competitively for this product category, the decision was made to develop this as an original Subros product, expanding our portfolio beyond thermal systems into cabin control interfaces with potential revenue impact of 5-10%.

problem

Existing HVAC control panels in this vehicle segment offered single-zone control meaning the driver and passenger shared one temperature setting, creating a comfort conflict particularly on long drives.


While dual-zone solutions exist in the market, none had been developed in-house by Subros. This created a gap both in product portfolio and in OEM offering.

problem

Existing HVAC control panels in this vehicle segment offered single-zone control meaning the driver and passenger shared one temperature setting, creating a comfort conflict particularly on long drives.


While dual-zone solutions exist in the market, none had been developed in-house by Subros. This created a gap both in product portfolio and in OEM offering.

Build an original dual-zone HVAC control panel that leverages Subros's manufacturing capability and cost advantage, expanding the product portfolio into a growing segment.

Build an original dual-zone HVAC control panel that leverages Subros's manufacturing capability and cost advantage, expanding the product portfolio into a growing segment.

User testing

Three physical prototypes were created using 3D printing to test different interaction models. Each prototype was built around a specific hypothesis about how users would interact with a dual-zone panel.

User testing

Three physical prototypes were created using 3D printing to test different interaction models. Each prototype was built around a specific hypothesis about how users would interact with a dual-zone panel.

Dual-zone HVAC Control Panel Design : Prototype Testing and Design Recommendations

SOLUTION

brief

Refined concept

Based on the set of recommendations from the User Testing, I considered the important recommendation which justify the requirement and also serves the safety and good interaction purpose.

0

Dual

0

0

Dual

0

Temp

Temp

Dual

AC

X

0

Dual

0

Temp

Temp

Dual

AC

X

Temp

Temp

Knob for blower speed

Blue colour at the top to indicate the decrease the temp as cooling is the primary function

Face → Feet → Face+Foot sequence

Modes and zone distinction

lets unfold the user testing

I talk, let's talk?

Made with love @2026