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Chrysler Group’s Innovative Use Of Emerging Technologies To Develop And Promote Safety
Scott RedmanManagerSafety Planning and StrategyChrysler Group
September 29, 2004
2
Chrysler Group achieves safety through a three part, holistic safety approach
1. Education – Safety Programs designed to educate and raise awareness of high-risk behavior
2. Active Safety – Features designed to mitigate or reduce collision severity prior to an impact
3. Passive Safety – Features designed to protect the occupant after an impact
Chrysler Group Safety Overview BackBack
BackBack
3
Chrysler Group Safety
Some elements comprising the holistic safety approach
Safety Programs
Road Ready Teens
Fit For A Kid/SeatCheck
LATCH Campaign
Public service announcements
Active Features
ABS and Traction Control
Electronic stability program (ESP)
Panic brake assist (PBA)
Rollover mitigation
Passive Features
Seat Belts• Pretensioners• Load limiters
Front Airbags
Side Airbags
Collapsing Steering Column
BackBack
4
High SpeedImpact
(steeringcolumn,
kneebolsters)
ModerateImpact
(Airbags)Low SpeedImpact
(Seat Belts)Accident Avoidance(ESP, Panic
brake assist)Heavy braking
(ABS)Light Braking
(traction control )Normal
Ride
Passive SafetyActive Safety CrashCrash
Vehicle Accident Phase Chronology
SafetyPrograms
BackBack
5
• Parents of teens 14 to 17
• Teens 14 to 17 years old
Road Ready Teens- Target Audience
Deaths in Police-Reported Deaths in Police-Reported Crashes per Million miles Crashes per Million miles Traveled, by Driver Age.Traveled, by Driver Age.
BackBack
6
• Offering parents proven recommendations to keep their teens safe
• Developed with the guidance of safety experts
www.roadreadyteens.orgBackBack
Road Ready Teens – Parent’s Guide
7
Developed by
WildTangent, StreetWise
is designed to raise
awareness of risk, help
teens understand why
distractions are so deadly
and why restrictions are
so important
www.roadreadyteens.orgBackBack
Road Ready Teens – Street Wise
8www.roadreadyteens.orgwww.roadreadyteens.orgBackBack
Road Ready Teens – Street Wise
9
BackBack
Road Ready Teens – Street Wise
www.roadreadyteens.orgwww.roadreadyteens.org
10
StreetWise Beta-testing, University of Michigan
• All participants reported that StreetWise helped them better understand driving risks
• 61% were more likely to take steps to protect themselves from driving risks after playing StreetWise
BackBack
Road Ready Teens – Research Proven
11
High SpeedImpact
(steeringcolumn,
kneebolsters)
ModerateImpact
(Airbags)Low SpeedImpact
(Seat Belts)Accident Avoidance(ESP, Panic
brake assist)Heavy braking
(ABS)Light Braking
(traction control )Normal
Ride
ESP
SafetyPrograms
BackBack
Vehicle Accident Phase Chronology
Passive SafetyActive Safety CrashCrash
12
Electronic Stability Program (ESP)
• The potential for active safety lies in the avoidance or mitigation of accident severity
• Where passive safety allows milliseconds for decision making, active safety provides seconds
• One such feature is Electronic Stability Program (ESP), which is designed to assist the driver in maintaining directional control
• Due to the importance of active safety, there is a module dedicated to the emerging technologies used to in the development of ESP
BackBack
13
ESP
Computer Aided Engineering
SafetyPrograms
BackBack
Vehicle Accident Phase Chronology
High SpeedImpact
(steeringcolumn,
kneebolsters)
ModerateImpact
(Airbags)Low SpeedImpact
(Seat Belts)Accident Avoidance(ESP, Panic
brake assist)Heavy braking
(ABS)Light Braking
(traction control )Normal
Ride
Passive SafetyActive Safety CrashCrash
14
CAE / Simulation Technology
• A full range of computer aided engineering (CAE) simulations have been employed in the development process
• The development process flow verifies safety at the component level first, systems, & ultimately the full vehicle
BackBack
15
CAE / Simulation Technology
• Insert SAE video
BackBack
16
Stroking Steering Column Example
The patent-pending energy absorbing steering column reduces force to the occupant during a high severity impact event
Column Stroke
Fo
rce
Without column stroke(conventional design)
With column stroke
(Pacifica Design)
Bend Strap
Capsule
BackBack
Chrysler Pacifica
17
The component choreography is developed as part of the system using computer simulation
Stroking Steering Column Example
BackBack
Chrysler Pacifica
18
The restraint component choreography is confirmed via system testing
Bottom of the Steering Column Side view of the same test
Stroking Steering Column Example
BackBack
Chrysler Pacifica
19
Chrysler 300 / Dodge Magnum
The rear sill reinforcement was optimized through simulation to ensure consistent impact performance
Rear Structure Example
BackBack
20
The rear structure, including the sill reinforcement, was designed to allow the spare tire to rotate out of the way during a rear impact
Chrysler 300 / Dodge MagnumRear Structure Example
BackBack
21
Dodge Durango
The Durango frame tips were designed, through many iterations, to crush a specific distance at several critical speeds
Frame Rail Tip Example
BackBack
22Post crush tip
Pre-crush tip
Frame Rail Tip Example
Dodge Durango
BackBack
23
Dodge Durango
Durango underbody – vehicle impact
BackBack
Frame Rail Tip Example
24
Summary
Through the innovative use of emerging technologies, the Chrysler Group will
continue to supportthe goal of reducingroadway fatalities
BackBack
EnvironmentA
ctiv
e S
afet
y
Passive S
afety
Education
Chrysler
Group
Holistic Approach
Chrysler Group’s Innovative Use Of Emerging Technologies To Develop And Promote Safety
Scott RedmanManagerSafety Planning and StrategyChrysler Group
September 29, 2004