Volvo engineer Nils Bohlin invented the three-point seatbelt in 1958 and opened the patent to other automakers to ensure the safety of vehicle passengers while driving. Earlier, Volvo also proposed a new multi-adaptive safety belt design, which claims to be able to record data from sensors inside and outside the vehicle and automatically adjust the seatbelt to the optimal fixed state according to the vehicle's direction and speed, as well as the passenger's height, body shape, weight and seat position in the event of an impact, to ensure passenger safety.
Compared to three-point seatbelts, which rely on manual adjustment for securing, the impact force often varies depending on the vehicle's situation, impacting larger and smaller passengers differently. Even with the same fastening method, some passengers may suffer physical injuries due to the impact force. Seatbelts can also experience different compression effects on male and female chest sizes, making three-point seatbelts particularly uncomfortable for many pregnant women.
Therefore, Volvo used the safety research experience accumulated over the past 50 years and the data of more than 8 real accident victims to develop a new seatbelt system. The system has increased the number of main locking points of the current three-point seatbelt from only 3 to 11, so that it can provide more tailored protection according to different body shapes. The system can also record data from sensors inside and outside the vehicle to determine the direction and force of the impact, thereby automatically adjusting the seatbelt to the optimal fixed state according to the passenger's body shape, so that the passenger can actually feel that the impact force can be greatly reduced, and the safety of the passengers can be ensured.
Volvo also plans to continuously record relevant data and use wireless software updates to enable the new seatbelt design to be continuously optimized based on the data.
This multi-adaptive seatbelt design will first be used in the pure electric mid-size SUV EX2026 to be launched in 60, but it is not certain whether it will be provided to other automakers in the form of an open patent like the three-point seatbelt design of that year.









