Ruohan Li
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Audi HMI · Summer 2025

Enhancing Audi’s In-Car UX: Rear-Seat Personalization

Gesture-based interactions, settings navigation, and AI voice opportunities for a more intuitive rear-seat entertainment experience.

Audi intelligent cockpit experience
Role
UX Researcher
UX Designer
Timeline
May 2025–
Sep 2025
Focus
Gesture · Settings
Voice assistant
Team
HMI Design
Engineering · PM
01 · Overview

Designing intuitive, seamless interactions for Audi’s rear-seat experience.

In summer 2025, I interned at Audi's HMI team as a UX designer. I focused on gesture-based interactions and the settings interface of the rear-seat entertainment system, aiming to create intuitive, seamless user flows. Collaborating closely with designers and engineers, I contributed to research, prototyping, and interaction design that enhanced usability and aligned with Audi’s vision for intelligent, human-centered HMI design.

01

Gesture interaction

Designed intuitive in-air gesture interactions for in-car infotainment.

02

Competitive analysis

Conducted competitive analysis of automotive HMI experiences.

03

Collaboration

Collaborated with engineers and PMs to prototype and refine interactions.

04

Prototyping

Created wireframes and motion prototypes for multi-modal interactions.

05

Stakeholder alignment

Reported design rationale to stakeholders in Germany.

02 · Background

Luxury mobility for a market that expects personalization.

The project focused on developing the in-car HMI experience for Audi’s new e-tron model targeted at the Asian market, where luxury users expect highly personalized, tech-driven interactions.

With the rise of electric mobility, the e-tron series aims to redefine in-car comfort through multi-modal interaction, combining gesture, touch, and voice controls to create an intuitive, human-centered interface. The design effort emphasized cultural adaptability, seamless digital integration, and premium aesthetics consistent with Audi’s global brand identity.

Audi e-tron digital cockpit interface
03 · My Projects

Three connected concepts for rear-seat control.

Concept 01

Gesture Simplicity

Designed intuitive and reliable in-air gesture interactions for Audi’s rear-seat entertainment system.

Concept 02

Settings Navigation

Redesigned the settings interface of Audi’s rear-seat entertainment system to reduce cognitive overload.

Concept 03

Voice Assistant Opportunities

Explored how AI-powered voice assistants can enhance the rear-seat experience by enabling precise car control.

04 · Highlight · Solution 1

Designing In-air Gesture Control

I conducted a competitive analysis of in-air gesture systems across major automotive brands, including BMW, Mercedes-Benz, and NIO, to identify common interaction patterns and gaps in usability. Based on these findings, I helped define Audi’s gesture interaction logic and settings structure, outlining intuitive hand movements for core in-car functions such as media control and call management. This research informed the design direction for the Air Gesture Settings interface, ensuring consistency, simplicity, and seamless integration with Audi’s HMI ecosystem.

Process
1

Benchmark

Compared gesture vocabularies and feedback patterns across BMW, Mercedes-Benz, and NIO.

2

Define

Mapped simple, memorable hand movements to media control and call management.

3

Integrate

Structured settings so gestures remain understandable and consistent with Audi’s HMI ecosystem.

Competitive analysis of automotive air gestures
Audi air gesture settings wireframe
05 · Highlight · Solution 2

Enhancing Rear-Seat Settings

For the settings redesign, I analyzed the existing information architecture of Audi’s rear-seat entertainment system to identify redundant paths and overly complex menu hierarchies. Working closely with the German HMI and product management teams, I aligned design priorities and ensured consistency with Audi’s design language. I then created wireframes and interactive prototypes to reorganize categories, simplify navigation, and reduce cognitive load for users.

Process
1

Audit

Reviewed the existing hierarchy to locate duplicated paths, unclear categories, and unnecessary depth.

2

Reorganize

Aligned categories and navigation logic with German HMI and product management partners.

3

Prototype

Created wireframes and interactive flows that made sound and vehicle settings easier to scan.

Settings information architecture and interaction flow
Rear-seat sound settings wireframe exploration
Rear-seat sound settings prototype
06 · Highlight · Solution 3

Designing AI-backed Voice Interactions

For this concept, I explored opportunities to enhance Audi’s in-car voice assistant by integrating proactive yet transparent AI behaviors. I analyzed existing interaction flows to identify moments where contextual suggestions could assist users without interrupting their sense of control. I organized both quantitative and qualitative research questions, then conducted a 20-question user survey to gather actionable insights on usability and preferences. After collecting data, I collaborated with the HMI design team to synthesize survey and interview results.

Process
1

Explore

Identified moments where contextual suggestions could help without taking control away from passengers.

2

Research

Structured quantitative and qualitative questions and conducted a 20-question user survey.

3

Synthesize

Worked with the HMI design team to turn survey and interview findings into actionable opportunities.

Voice assistant user research data bank
07 · Takeaways

Designing for motion changed how I think about interaction.

01

Designing Beyond Screens

Learned how HMI differs from traditional web/app design: gestures, physical environments, safety, and multi-sensory feedback must all be considered together.

02

Balancing Innovation with Responsibility

Discovered the importance of designing interactions that are not only creative but also safe, context-aware, and feasible in motion.

03

Adapting Design Mindset

Gained a deeper awareness of cognitive load, situational awareness, and the need to design for real-world constraints, not just ideal scenarios.

Ruohan at Audi intern career day
Audi team event and presentation
Audi internship moment
Audi vehicle showcase
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