Comparison of Load Distributions between Human Occupants and ATDs in Normal and Non-normal Occupant Positions and Postures Delphi Corporation

Format:

Conference/Event

Author/Creator:

(Lee) Zhang, Lijian, author.

Conference Name:

SAE 2006 World Congress & Exhibition (2006-04-03 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2006

Summary:

In occupant sensing system development, the Anthropomorphic Test Dummy (ATD) and the Occupant Classification ATD (OCATD) are frequently used to simulate live human subjects in the testing and validation of weight based occupant sensing systems. A study was conducted to investigate the range of loading differences between these ATDs and live human subjects over various seating postures and conditions. The results of the study revealed that differences in seat load patterns could be significant, even though both the ATD and live humans are in the same weight and body size categories. Seat loading was measured using Hybrid III (5th percentile female, 50th percentile male, and 3 year old) ATDs, OCATDs (OCATD5 - 5th percentile female, and OCATD6 - 6 yr old child), and a CRABI (12-month old) dummy. Human subjects in the same weight and height categories as the above listed ATDs were also measured. The study findings indicate: (1) Passenger off-loading1 can be affected by seating conditions; (2) ATDs have less off-loading than human subjects in normally seated postures (or those similar to normally seated) (3) The Center of Mass of ATDs is closer to the front of the seat at normally seated position (or positions/postures similar to normally seated). These differences are more obvious for Hybrid III ATDs than OCATDs; (4) Unlike adults, the load patterns between child ATDs and live child occupants are reasonably consistent

Notes:

Vendor supplied data

Publisher Number:

2006-01-1435

Access Restriction:

Restricted for use by site license