loading
Loading.....


Seat Belt Pretensioner


MAKING EFFECTIVE MECHANISM MORE EFFICIENT



Ever increasing road fatalities has magnified the need for safety measures on vehicles. Safety devices, once perceived as luxurious accessories, increasingly, are becoming part of the vehicle as standard equipment. Evolved car buying customers are ready to pay a premium for safety features that can prevent fatality.



Seat belt is one of the oldest active safety mechanism adopted by the car manufacturers from a long time. Though it seems very simple, it is amazingly effective in shielding one from any eventuality and minimise overall damage to the passenger.



Recent statistical data released by highway safety authority in USA says that seatbelts save around 13,000 lives in US every year.




SEAT BELT PRETENSIONER



Whilst seat belts on their own are quite effective in minimizing injuries, however, seatbelts with pretensioner helps in improving seatbelts efficacy.



Pretensioner starts working as soon it senses hard braking. It works by tightening the seat belt around the passenger so that the person is held firmly in his place. The whole process starts and completes within milliseconds. Thus improving seat belt utility many fold.




TYPES OF PRETENSIONER




Depending upon the mechanism of working, pretensioners can be classified into two categories:




MECHANICAL PRETENSIONER
: Seatbelt with mechanical pretensioner consists of a spring and tube mechanism attached to the seatbelt buckle assembly, a latching mechanism is used to compress the spring. On impact, this latching mechanism releases the spring which in turn pulls on the buckle assembly. This pulling is directly proportional to the tightening that the passenger will experience which helps in cushioning the passenger more effectively than what normal seat belt assembly would do.



ELECTRONIC PRETENSIONER: Electronic pretensioner involves use of sophisticated sensors to operate the mechanism, which many a times work in tandem with the air bags that are fitted in the vehicle.



The main parts of electronic pretensioner can be classified as:



Operating Sensor.



Explosive Charge.



ECU Tuning.



Electronic pretensioner works in tandem with airbags sensor and is tuned with the ECU of the vehicle. An explosive charge generates the gas which exerts pressure on the mechanical linkages causing the seat belt to tighten up. These type of seatbelts are usually fitted in the B-Pillar of the vehicle.

Popular Car Comparisons

Fortuner 2.7 4x2 ATEndeavour Titanium 4x2 AT

Fortuner Vs Endeavour full blown SUV Competing for Buyers Wallet. Real SUV for SUV lovers from Toyota and Ford. Endeavour and Fortuner comes in 4*2 and 4*4 drive train. Fortunately both have the muscle, looks and power under their hoods to take any terrain with ease. Whilst, on paper feature to feature and engine comparison seems to be tilting the balance in favour of the Endeavour, however, Toyota has enough fan following who will willingly ignore any marquee for a Toyota at any price. Lucky Toyota.


Write a Review

Do a Good Deed Today. Reviews on cars and/or dealership on www.ecardlr.com have been written by people like you. These honest, candid reviews on cars or their dealership experience help others like you and all of us help take a right decision. It's your turn now to return their good deeds with a review on any car/or dealership that you might have been lately. Please write a review on a car and/dealership and help other car buyers in India.

Car Advice By Car Experts

Price comparison between Endeavour, Fortuner, Tucson and CRV

Must admit we are surprised at your query, as the SUVs you are comparing are not comparable at all. The only reason we believe that you are looking at price and variant details for Ford Endeavour, Toy....Read More

Dealer Locator


Service Centre Locator

close