Small women expose seat design
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Small women expose seat design Disruptive Technology Needed!
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Transcript of Small women expose seat design
Small women expose seat
design
Disruptive Technology Needed!
Some seats are too small!
Some seats are too tall!
Owners say “Seating is
unsatisfactory!”
J. D. Power 2012 APPEAL Survey.
Desirable cars, Unsatisfying
seats!
High Quality and High Tech!
WHY is seating unsatisfactory?
Engine replaced horse, but car used carriage seat!
1893
1910
Cars for everyone!
Driver Passenger
We can sit ON anything!
Driver occupies seat in the car!
Occupied seat design
is not part of car design!
1 THE PROCESS
Seat Design uses
50+ yr. old process.
2
First Driver Manikin in Car
is “Oscar” (SAE J826)!
1962
“Oscar” represents a
composite male body size!
Average man’s torso
Large man’s leg
1962
No Seat for
Driver Manikins
in Vehicle Design!
3
Design starts with Oscar and Population Statistics.
Vision statistics
Seat travel statistics
“Oscar”
1400 1500 1600 1700 1800 1900
Stature (mm)
Drivers’ body sizes are represented in statistics!
Oscar and average US male
differ at head and torso shape.
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
1962 vs.
1995
Driver manikins evaluate reach & vision in CAD.
Safework
RAMSIS SAMMIE
JACK
Driver manikins “sit” ON seating caricatures in CAD.
Safework
RAMSIS SAMMIE
JACK
First real drivers test prototype seat, not postural adaptations.
Test drivers adapt driving posture to test seat.
All Federal Motor Vehicle Safety Standards use “Oscar” based upon industry tools & practices in 1967
FMVSS 101 Controls & Displays FMVSS 111 Rearview Mirrors FMVSS 201 Occupant Protection in Interior Impact FMVSS 203 Impact Protection for the Driver from the Steering Control System FMVSS 204 Steering Control rearward displacement FMVSS 207 Seating System FMVSS 208 Occupant Crash Protection FMVSS 209 Seat Belt Assemblies FMVSS 210 Seat Belt Assembly Anchorage FMVSS 214 Side Impact Protection
Test of head restraint design uses Oscar.
FMVSS 202a
Focus is on quality products and regulations!
WHY is seating unsatisfactory?
4 Drivers Adapt Postures
to sit in Seating Design.
Small driver ADAPTATION.
Sitting Position & Posture for Downward Vision
Small Driver wants to sit upright for good vision!
ERL Posture Report, June21, 1996
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
Erect
Neutral
Medium driver ADAPTATION.
Sitting Position & Posture for Reach & Vision
Drivers want to sit in their preferred posture & position.
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
Erect
Neutral
Slumped
ERL Posture Report, June21, 1996
Large driver ADAPTATION.
Sitting Position & Posture for Head & Leg Space
Large driver reclines for head clearance
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
Neutral
Slumped
ERL Posture Report, June21, 1996
Seat Position & Sitting Posture
change with seating design
Head Restraint for all drivers needs to be Safe & Comfortable!
Design for Seating has to START at Vehicle Concept!
5
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
Driver manikins have to sit in car seating to design for drivability, safety & comfort.
Small
Medium
Large
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
Can a driver
manikin represent
real driver seating comfort?
Yes, 65%
of comfort comes
from seating effects on
driver's sitting posture!
6
ERL manikins correlate with
real driver seat comfort scores.
Erect
Neutral
Slumped
Vision
Space
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
ERL designs
seating in car for
sitting postures, safety,
ergonomics and
comfort.
“Oscar,” required by law, is one more “driver” for seating design.
Erect
Neutral
Slumped J826
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
Driver manikins design and evaluate seating in ERL.
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
Benefits! Driver is satisfied with car AND seat.
Manufacturer knows seat design comfort.
Engineer knows drivers’ sitting positions.
Designer styles seating surface for driver.
Car is desirable!
Car needs seating design for sitting postures.
Patents: US#6,840,125, US#7,047,831, US#7,347,114, US #7,797,138
Small women highlight problem
for all drivers
Owners say "Seating is
Unsatisfactory! "
In Summary, 1. Occupied seat design is not part of car design.
2. Seat design uses 50+ year old process.
3. No seat for driver manikins in car design.
4. Drivers adapt sitting postures to sit in seat.
5. Design for seating has to start at Vehicle Concept.
6. 65% of comfort comes from seating effects on driver’s sitting posture.
