Can Automotive Seat Belts adjust tension automatically based on passenger weight?

        On the assembly line of a certain automobile factory in Chongqing, a CHC smart seat belt is completing the tension switch from "child mode" to "adult mode" within 0.3 seconds based on the passenger weight data fed back by the sensor. Meanwhile, on a forklift in a certain logistics park in Hangzhou, the same type of seat belt has automatically tightened according to the driver's body type, preventing the driver from surging forward when the goods are jolted. These scenes confirm CHC's technological breakthrough: the seat belt is no longer a one-size-fits-all fixed device, but an intelligent protection system that can "read" human characteristics.

The core patent "Dynamic Load Sensing System" is adapted to the tension revolution from sedans to special vehicles

        CHC has developed six types of intelligent tension-adjusting seat belts for different usage scenarios, which have passed the dual certifications of the EU ECE R16 and the US FMVSS 209.

        Car Seat Belt: In the actual test of BYD Han EV, when the child safety seat is engaged, the seat belt automatically switches to the 20N low-tension mode to avoid pressing on the chest cavity of young children. When an adult is riding, the standard tension of 80N is restored. Ms. Li, the car owner, gave feedback: "Before, my child always pulled the seat belt when taking a car, but now it fits like a gentle arm."

        Forklift Seat Belt: Through the linkage of the seat pressure sensor and the Angle meter, in the test of JD Logistics, when the forklift operates at a 15° tilt, the tension of the seat belt automatically increases by 30% to prevent the driver from slipping. The equipment supervisor did the math: "The work-related injury compensation avoided last year was sufficient to upgrade the safety systems of 200 forklifts."

        Golf Cart Seat Belts: In view of the frequent start-stop characteristics of the golf cart, CHC adopts hierarchical tension control - maintaining a comfortable tension of 40N when driving on flat roads and instantly increasing to 120N when making sharp turns. Statistics from the Mission Hills Golf Course in Shenzhen show that the rate of occupant injuries in the rollover accidents of golf carts has decreased by 67% after the modification.

        Wheelchair Seat Belt: A medical design developed in collaboration with rehabilitation hospitals that can adjust tension according to the disability level of patients: Paraplegic patients use 5N gentle mode, hemiplegic patients use 25N drop protection mode. Ms. Wang, the head nurse, said, "It transforms patients from being 'bound' to being 'protected'."

        UTV Seat Belt: During the desert off-road test, when the vehicle lands in the air and generates a 3G impact, the seat belt reduces the peak tension from 2000N to 800N through the hydraulic buffer, protecting the ribs of off-road enthusiasts from damage. The team leader, Lao Zhang, sighed, "In the past, when I ran rally races, the seat belt was so tight that my ribs hurt. Now, it feels like I'm being held up by an airbag."

        ATV Seat Belt: A waterproof model developed for wading scenarios. In the test in Sanya, Hainan, it could still accurately sense changes in body weight after soaking for 2 hours, and the tension adjustment error was controlled within ±5%. Mr. Chen, the dealer, commented: "The repurchase rate of the car rental agency by the seaside has thus increased by 40%."

The "Three-stage response mechanism" of intelligent seat belts

        Weight perception: Through the membrane pressure sensor embedded in the seat, a load range of 5 to 150 kilograms can be identified within 0.1 seconds.

        Posture analysis: The gyroscope monitors the body's tilt Angle. When the lateral tilt exceeds 10°, the anti-sway mode is automatically activated.

        Collision prediction: Linked with the vehicle ECU, the seat belt is pre-tightened 0.5 seconds before the ABS is triggered, reducing the chest displacement by 35%.

        This is like attaching a "brain" to the seat belt. The chief engineer of CHC presented the test data: In the C-NCAP crash test, the smart seat belt reduced the dummy's head injury value (HIC) from 1200 to 450, reaching the five-star safety standard.

From "Safety rope" to "Caring Butler"

        The R&D director of Geely Automobile shared the cooperation story: They integrated the CHC intelligent seat belt into the "Child Forgetting Reminder System" of the Galaxy L7. When a child is detected in the back seat and the seat belt is not in use, the vehicle will continuously honk and send a message to the owner's mobile phone. This function helped us avoid three accidents where children were trapped.

        In the medical field, the collaboration between CHC and Ruijin Hospital in Shanghai is even more warm: the wheelchair seat belts customized for ALS patients can sense weak movement intentions through electromyogram sensors and automatically relieve tension when patients attempt to adjust their sitting posture. It allowed the patient to retain the last shred of dignity. The words of the director of the rehabilitation department reveal the humanistic value of technology.

CHC is redefining the value boundaries of "seat belts" through technological innovation

        All safety belt webbing is made of recycled polyester fiber, and two recycled plastic bottles are consumed per meter of webbing.

        The lithium battery of the smart module supports solar charging, extending the service life of outdoor equipment to 8 years.

        The metal components of the forklift safety belt adopt a detachable design. During maintenance, only the faulty module needs to be replaced, reducing waste by 90%.

        A good seat belt should be like air - it doesn't seem to exist in normal times, but can support life in critical moments. The general manager of CHC outlined the vision at the annual technology summit: "We are developing the next-generation products based on biometric technology. In the future, seat belts will be able to predict dangers based on passengers' heart rates and breathing rates, taking safety protection one step ahead."