VISION3D Powers the Manufacturing of the New Xiaomi SU7: How "Safety Above All" Is Truly Delivered on the Production Line

The new-generation Xiaomi SU7 made its market debut on March 19. In this highly anticipated upgrade, one core principle has been repeatedly emphasized — safety is the foundation and prerequisite, above all else and non-negotiable.

From the 2200 MPa ultra-high-strength steel body to the 17-layer battery protection system, from the full-range standard rader to the triple-redundant emergency architecture, the new SU7's upgrades go far beyond configuration enhancements. They represent a systematic reinforcement of the vehicle's overall safety capabilities, all anchored in the philosophy that "safety comes first."

But a more fundamental question arises: How are these safety commitments truly delivered on the manufacturing floor? The answer lies in the critical link that defines the upper limit of quality — high-precision 3D inspection.

The SU7's extensive upgrades place substantially higher demands on manufacturing:

• SiC high-voltage platform → Tighter structural accuracy and assembly consistency requirements for the battery system

• Body strength upgraded to 2200 MPa → More complex deformation control challenges with high-strength materials

• Deepened application of integrated die-cast structures → Greater difficulty in controlling dimensional variation in large, complex structural parts

• Full-range standard intelligent driving hardware → Overall assembly accuracy directly impacts multi-sensor fusion performance

Among these evolving requirements, the battery tray and the integrated die-cast rear floor stand out as the two most critical and challenging core components.

Under the new SU7's high-voltage platform and multi-layer safety protection system, the battery tray is no longer a mere load-bearing structure — it is a key component that directly contributes to overall vehicle rigidity and safety performance. It features complex geometries including multiple threaded holes, mounting surfaces, and sealing interfaces, yet remains a large thin-walled structure highly susceptible to deformation. This demands exceptionally high assembly accuracy, as any minute deviation could compromise sealing integrity, structural strength, and even thermal management safety.

At the same time, the oversized, single-piece integrated die-cast rear floor presents its own overall precision control challenges. The aluminum alloy material and machined holes exhibit high reflectivity, introducing measurement interference, while the fast production cycle demands that the inspection system keep pace in real time. Compounded by real-world production environment disturbances — temperature fluctuations, vibration, and changing lighting conditions — achieving stable, accurate inline inspection has become a shared challenge for both core components.

For the new SU7's critical structural parts, VISION3D delivers an automated blue light inline 3D measurement solution that safeguards high-precision manufacturing and quality control, enabling a complete upgrade from data acquisition to a closed quality loop.

01 High-Precision, High-Efficiency Data Acquisition
The system is built on blue light non-contact measurement. Using the PowerScan blue light sensor, combined with triple-view matching and bundle adjustment optimization algorithms, and accelerated by a CPU/GPU dual-engine architecture, it effectively suppresses interference caused by aluminum alloy reflectivity and electrophoretic coating light absorption. High-quality point cloud data is reliably captured even under challenging material conditions, ensuring measurement accuracy at the source. Furthermore, the system incorporates a dual-robot collaborative scanning mechanism that flexibly covers deep cavities, undercuts, and various structural blind spots, achieving a single-frame scan time as fast as 0.2 seconds — ensuring full coverage while meeting production cycle time requirements.

02 Intelligent Reconstruction with Proprietary Algorithms
In the data processing and reconstruction stage, VISION3D's VisionInspect automated measurement software performs intelligent stitching in both target-based and target-free modes. Through feature matching and point cloud alignment algorithms, combined with ICP optimization and global constraint mechanisms, it achieves high-precision fusion and 3D reconstruction of multi-view data.

03 Full-Process Automation
The complete solution realizes full-process automation spanning automatic loading, scanning and data acquisition, CAD alignment, deviation analysis, and automated report generation. Critical dimensions are visualized and traceably managed, driving the leap in inspection capability from traditional sampling inspection to full-size inline inspection.

04 Stable Inline Operation
With environmental interference countermeasures including thermostatic control, shading protection, and foundation vibration isolation, the system operates stably under the temperature, vibration, and lighting variations of a real production environment — truly bringing high-precision 3D measurement from the lab to the industrial shop floor.

What the new-generation Xiaomi SU7 underscores is not merely leading specifications, but a steadfast reinforcement of the safety baseline. In this chain, 3D inspection is no longer just the final quality checkpoint — it is a critical safeguard that runs throughout the entire manufacturing process. From battery trays to integrated die-cast rear floors, from single-point measurements to full-scale dimensional data closure, VISION3D equips the new SU7's critical structural components with stable, reliable quality assurance.