What is the most widely used seat belt in vehicles currently?

1 Answers
Evan
07/30/25 2:25am
Currently, the most widely used seat belt in vehicles is the ELR three-point seat belt. Other types of seat belts: ELR three-point seat belt; ALR three-point seat belt; seat belt with pre-tensioner and load limiter. ELR three-point seat belt: The ELR three-point seat belt is a three-point seat belt equipped with an ELR retractor. This type of retractor is called an Emergency Locking Retractor, which normally allows the seat belt to be pulled out freely. It is equipped with an impact-sensing device that locks the seat belt during a collision or emergency braking. Generally, the impact is detected through the vehicle's deceleration, while some systems sense it through the speed at which the webbing is pulled out. A combination of both methods has become mainstream. ALR three-point seat belt: The ALR three-point seat belt is a three-point seat belt equipped with an ALR retractor. This type of retractor is called an Automatic Locking Retractor, which locks the seat belt once it is pulled out to a length suitable for the occupant, preventing any further extension. The combination of ELR and ALR (ELR/ALR) has become mainstream. ALR activates when the seat belt is fully extended, while ELR takes over when it is fully retracted. This method is mainly used for securing child seats. Seat belt with pre-tensioner and load limiter: Many mid-to-high-end cars are equipped with seat belts featuring pre-tensioners and load limiters. The pre-tensioner is designed to eliminate excess slack in the seat belt, preventing the occupant's head from being injured by the deploying airbag. The load limiter reduces the tension of the seat belt after the peak force has passed, thereby minimizing the pressure on the occupant's ribs and shoulders.
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