This document outlines 3 steps for designing comfortable and safe car seats at the vehicle concept stage. Step 1 is to use driver models and the SAE J826 ("Oscar") guidelines to evaluate ergonomics and comfort. Step 2 is to use the same to ensure safety and comfort compliance with Federal regulations. Step 3 is to optimize the seat design for different driver postures while meeting Oscar guidelines to achieve the best comfort scores. The document emphasizes that ERL's driver models are uniquely validated to design seats accommodating all drivers at the initial concept phase.
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Car seats for comfort at vehicle concept
1. Let’s design Car
Seats for Comfort
at Vehicle Concept
3 High Tech Steps
for Auto Industry
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
2.
3. SAE J826 (“Oscar”) guides seat
design around H-point (SgRP) at concept.
“Oscar”
H-point (SgRP)
4. Step #1: Use driver models with Oscar for
ergonomics & comfort at concept.
ERECT
Oscar
NEUTRAL
SLUMPED
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
5. US DOT regulations for safety
require use of Oscar’s H-Point.
FMVSS 201
FMVSS 111 - Head Impact
- Rearview Mirrors
FMVSS 101 FMVSS 202
- Displays - Head Restraints
- Obscurations
FMVSS 203 & 204
- Steering column FMVSS 209 & 210
- Seat Belts Assemblies
& Anchorage
FMVSS 101
- Controls H-Point
- Pedals
FMVSS 207
- Seating System FMVSS 208
(SgRP)
- Seat Travel
6. Step #2: Use driver models with
Oscar for safety & comfort.
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
7. Seated posture & body size affects
reach to controls, vision & comfort.
ERECT
SLUMPED
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
8. Step #3: Optimize seat design for drivers
postures and Oscar at concept.
Comfort Score = 7.9
Comfort Score = 9.1
ERECT
NEUTRAL
Comfort Score = 8.6
SLUMPED
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
9. Only ERL is
validated to design
a seat for all drivers
at concept!
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138