A physical HMI control designed as an alternative to screen-based interaction in automotive.
The concept explores how a single input element can handle core functions while keeping interaction simple, safe, and consistent.
Automotive HMI Concept
Physical Interaction Component
Part of a broader vehicle interaction system, this control handles high-frequency actions through press, rotation, touch, and voice. The goal was not to remove complexity, but to structure it safely across driving contexts.
Overview
The Idea
Most car interfaces are not designed. They are accumulated.
Over time, features are added, screens multiply, and interaction becomes fragmented.
This concept explores a different constraint: what if the central screen is removed entirely?
Not as a design statement, but as a business decision.
The goal was to structure interaction, not reduce functionality.
Use Case
The control adapts to driving context and system state.
— When the car is stationary and the brake is pressed, it becomes a drive mode selector
— In motion, it remains decoupled from critical driving functions
The interaction is layered based on conditions, avoiding interference with driving.
Interaction Model
The control combines multiple interaction types into one consistent model:
Press — switch function
Rotate — adjust value
Tap / Swipe — quick actions without looking
Long press — activate voice assistant
Functions are organized in a loop, allowing fast switching between 3–4 high-frequency actions.
The goal was to keep interaction predictable and learnable through muscle memory.
Design Principle
In this model, complexity doesn’t disappear.
It gets structured.
The interface is no longer a screen.
It becomes a layer of decisions.
Context
This concept reflects a recurring challenge in product design:
balancing business constraints, technical limitations, and user experience.
The control is designed to work alongside systems like HUD, reducing visual load and reliance on screens.
Reflection
User experience should not degrade because of constraints.
Constraints should shape better decisions.
Safety & Scope
This control is part of a broader interaction system.
It does not replace all inputs, but focuses on high-frequency actions for both driver and passenger.
Safety-critical scenarios are handled through state-based constraints and additional safeguards.
For example, access to certain functions can be limited depending on driving state or user context.
Interior sensing (e.g. driver vs passenger) can further refine interaction boundaries.
In practice, experienced drivers naturally regulate interaction, especially in critical moments.
The goal is not to remove complexity, but to manage it safely.