Li Auto NVH Technology

A Quiet Home, A Peaceful Journey.

A Soundproof Room for the Whole Family.

Industry-leading NVH performance creates a powerful sound barrier for your family, effectively isolating external noise. Enjoy quiet naps and immersive entertainment.

Peaceful Naps

Immersive Audio-visual Experience

Comfort for Every Seat

A Quiet Journey.

Through comprehensive suppression of wind noise, road noise and EDU noise, we have achieved top dynamic NVH performance. During the journey, family members can chat easily, and children can sleep peacefully.

Barely Audible Wind Noise Low-drag design reduces high-speed wind noise. Experience ultra-quiet performance even at high speeds, where whispers are still clearly audible.

Dissipating Road Noise Through high-accuracy simulation and millimeter-level optimization of tires, suspension and vehicle body structure, vibrations are blocked across all speed ranges and conditions. Noise has "nowhere to hide", ensuring a smooth and quiet journey for your family.

Imperceptible Electric Drive Operation Different gears are highly meshed, combined with active damping technology to aviod jitter and active current harmonic compensation technology. There is no obvious "electric drive howling" in different driving modes. It is quiet from the start and remain quiet during driving.

Taking care of the ears of the whole family.

Over 1000 test samples from actual vehicles, covering 16 types of specialized road surfaces with S&R, with high and low temperature verification ranging from -30°C to 50°C. Double layer laminated silent glass is fully equipped as standard configuration for every model, ensuring quietness wherever you go. Full frequency souind insulation provides comprehensive hearing protection for family members from elders to babies.

NVH Technology

What Makes Li Auto's NVH Outstanding

Acoustic Material

Isolating Airborne Noise

Large-area absorbers and sound barriers combined with cavity baffles form a powerful sound barrier and absorption shield, ensuring quietness whether parked or driving.

Acoustic Material

The area of sound-absorbing materials exceeds the industry standard by 20%, while the number of cavity barriers surpasses peers by 35%. High-density EVA and PU materials form a heavy-duty sound barrier, isolating airborne noise in all conditions, ensuring quietness whether parked or driving.

Vibration Isolation, Mode Separation and Vibration Absorption

Isolating Structural-borne Noise

Through three major technologies: vibration isolation, mode separation, and vibration absorption, it solves the final 1-2 decibels of low-frequency structural-borne noise problems. The sound insulation performance of our vehicles are comparable to top luxury vehicles across all vehicle models.

Vibration Isolation, Mode Separation and Vibration Absorption

42 chassis bushings isolate vibration energy. Mass blocks are used for targeted frequency avoidance, dissipating noise energy and solving the final 1 decibel problem.

NVH Simulation Technology

All-scenario NVH Simulation

Industry-leading NVH simulation technology and accuracy, with over 90% accuracy in all dimensions.

NVH Simulation Technology

Development scenarios cover all road conditions, speed ranges and temperature ranges. Wind noise simulation accuracy: 95%. Road noise simulation accuracy: 95%. Thermal management simulation accuracy: 95%. EDU noise simulation accuracy: 91%. S&R simulation accuracy: 90%. Problems are identified before physical vehicle testing, ensuring reliable and stable NVH performance even in extreme environments and road conditions.

Measured Performance

NVH Rankings: Every Vehicle Model Leads