Browse Publications Technical Papers 1999-01-0080
1999-03-01

A Method to Evaluate the Energy Capability of Seat Belt Pretensioners 1999-01-0080

Current performance specifications of seat belt pretensioners include web retraction and belt load. These criteria may adequately represent the performance requirements of a pretensioner in a restraint system. However, by themselves, they are inadequate to evaluate potential design modifications to improve efficiency levels and thus increase energy output of the pretensioner.
This paper demonstrates a non-linear phenomenon associated with web retraction and the belt load during pretensioning. It is this non-linear behavior that promotes the insensitivity for use of web retraction in predicting the energy output of a pretensioner with design modifications. This paper proposes an energy measuring method that can be used to more accurately measure the energy output of a pretensioner and then be used to evaluate the effects on output of a pretensioner due to design modifications.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Comparison of Thoracic Injury Risk in Frontal Car Crashes for Occupant Restrained without Belt Load Limiters and Those Restrained with 6 kN and 4 kN Belt Load Limiters

2001-22-0009

View Details

TECHNICAL PAPER

Computational Methodologies for Vehicles Roof Strength Assessment to Prevent Occupants Injury in Rollover Crashes

2009-36-0267

View Details

TECHNICAL PAPER

The Effects of Vehicle Seat Belt Parameters on the Injury Risk for Children in Booster Seats

2003-01-0500

View Details

X