With the mandatory national standard for "Technical Requirements and Test Methods for Automatic Emergency Braking Systems for Light Vehicles" in China entering its final countdown to implementation, the automotive safety sector is undergoing a technological transformation.

After the mandatory national standard comes into effect, all passenger vehicles, regardless of whether they are high-end or economy models, must be equipped with AEBS (Advanced Emergency Braking System), marking the beginning of large-scale factory installation of this technology in vehicles.

The new standard requires that "M1 and N1 category vehicles should be equipped with an automatic emergency braking system (AEBS)." M1 category vehicles include passenger cars such as sedans, SUVs, and MPVs, while N1 category vehicles include light commercial vehicles. The new standard also increases the assessment of the system's ability to recognize vulnerable road users such as pedestrians, bicycles, and mopeds, and adds new simulation testing items.
The new standard expands both the upper and lower limits of the AEBS activation speed. For M1 and N1 category vehicles, the AEBS system activation speed ranges are 10 km/h to 80 km/h and 10 km/h to 60 km/h, respectively. In addition, the maximum absolute value of the vehicle's deceleration after emergency braking must be no less than 5.0 m/s².
The expansion of the AEBS activation speed range effectively places higher demands on the sensors installed in the vehicles.
Lidar: The key to solving the problem in the standard AEBS system
From the perspective of value distribution in the industry chain, the AEBS system mainly consists of three modules: the perception layer (sensors), the decision layer (control unit), and the execution layer (braking mechanism). By real-time sensing of road risks, it enables the vehicle to "actively perform braking/deceleration," becoming a "co-pilot safety officer" with a priority closer to that of a human driver in emergency situations, thereby avoiding or mitigating accidents.

According to Hesai's official WeChat account, a survey of leading domestic smart car brands revealed that vehicles equipped with lidar showed a significant improvement of approximately 50% in their AEBS (Automatic Emergency Braking System) speed limit compared to models without lidar.
For two different car brands, the AEBS speed limit increased from 85 km/h to 120 km/h and 140 km/h respectively after being equipped with lidar;
In nighttime driving conditions, the nighttime braking speed of cars equipped with lidar increased from 80 km/h to 120 km/h.
Whether in nighttime, low-light, strong light, or complex lighting environments such as entering and exiting tunnels with rapid light changes, lidar, as a high-precision sensor that does not rely on ambient light, can "touch" the environment by emitting laser beams. When encountering obstacles, the beams are quickly reflected, and the information is processed to recreate the environment. This provides accurate distance and direction perception of obstacles in complex road conditions, ensuring higher braking speeds in high-speed scenarios and effectively reducing false alarms in urban areas.

The Breakthrough Solution: Cotest Enables Safe Mass Production of Core Light Sources for LiDAR
According to Yole, the technology architecture using VCSEL+SPAD-SoC is becoming increasingly common in many new LiDAR products. In the NIR band, the trend of VCSELs (Vertical-Cavity Surface-Emitting Lasers) replacing EELs is becoming more pronounced, with VCSELs gradually gaining market share:

As the "illuminating heart" of lidar, light source technology directly determines system performance. For manufacturers using VCSELs as the core light source for lidar, a challenge currently exists – traditional testing equipment struggles to meet the demands of high-volume verification of narrow-pulse parameters at the VCSEL wafer level.  Testing a single chip can take several minutes, hindering production ramp-up.
New standards impose new requirements for verification and validation testing at the vehicle and system levels, setting unprecedentedly high standards for hardware sensors.  Consequently, the technical performance and quality control of related core components will face even higher demands.

In response to the upgraded testing and verification requirements driven by stringent standards, Cotest assists LiDAR companies in rebuilding their safety defenses: The VMP9000 series is specifically designed for high-precision, high-efficiency testing of LiDAR chips, helping customers achieve large-scale mass production and quality control of laser chips.
Precise Testing: Ensuring the reliability of core components
LiDAR chips need to operate in a nanosecond-level narrow pulse mode in applications, placing extremely high demands on the chip's transient response, electro-optical conversion efficiency, and thermal performance. Traditional testing methods struggle to balance speed and accuracy, while our testing platform is specifically designed for such application scenarios.

The VMP9000 series is a modular multi-station test system designed by Cotest for the mass production needs of narrow-pulse wafers. Specifically designed for next-generation VCSELs, such as segmented 1D and 2D arrays, this series combines high-performance automation to improve UPH (Units Per Hour) in mass production and supports user-defined channel sampling or full-channel testing.
Through continuous iteration and refinement, the VMP9000 series has been successfully delivered to several leading customers and has been fully validated. It has not only strongly supported the R&D and iteration process of various core light source chips but also ensured the large-scale mass production and shipment of chips, enabling the entire chain from technology development to mass production.
Moving Forward Together: Embracing the Era of Standardization
In addition to product technology evolution, our company actively participates in the construction of industry standard systems. In January of this year, we led the drafting and release of the group standard "Vertical Cavity Surface Emitting Laser Wafer Tester," contributing to technological innovation and high-quality development of the industry.
In the future, we will continue to focus on cutting-edge testing technologies, promoting the evolution of testing platforms towards greater precision and higher speed, and working with industry partners to build a safer, more reliable, and mass-producible driving ecosystem.
As stringent standards and regulations measure the safety of every laser beam, the battlefield of LiDAR has shifted from a parameter competition to the ultimate showdown of safety and reliability. The VMP9000 series test system is becoming a core cornerstone for the mass production of light sources.
At the same time, Cotest also provides complete testing solutions for core optoelectronic components of LiDAR. For more product information, please contact info@cotest.com.cn.