Session 4 Day 1
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Crush/Crumble Zones
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Traction Control Devices
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Electronic Stability Systems
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Suspension Control Devices
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Side impact panels
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Door Latches
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Tempered Glass
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Headlights
©Virginia Department of Education
New Advances in Vehicle Safety
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All-wheel drive
Antilock braking systems
Electronic stability control
Telematics (i.e. OnStar)
Tire pressure monitoring
©Virginia Department of Education
New Advances in Vehicle Safety
•Active head restraints
•Adaptive cruise control
•Adaptive headlights
•Advanced airbags
•Advanced seat belt pretensioners
©Virginia Department of Education
New Advances in Vehicle Safety
• Fatigue warning
• Forward collision warning systems
• Lane departure warning systems
• Side view assist
• Park assist and back over prevention
©Virginia Department of Education
1. What is the electronic stability
system designed to do?
1. During an over-steering or skidding
condition, the ESP system applies
the brake to which wheel?
1. During an under-steering or sliding
condition, the ESP system applies
the brake to which wheel?
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Vehicle with and without
Electronic Stability Control
Electronic Stability
Control (ESC)
©Virginia Department of Education
Tire Traction and Control
Tires perform two basic functions:
1. Absorb shocks caused by road hazards.
Tires are air-filled cushions designed to
reduce the effect of road hazards and
irregularities on the vehicle and are
designed to flex and give as they meet the
road surface.
2. Provide Traction — enables drivers to accelerate, brake and steer.
Tires ratings are indicated on the sidewall of the tire
Traction —measured by the ability to stop a car in straight‐ahead motion on a wet surface ‐ tires graded A have the best traction performance, B grading is an above average rating and C indicates the tire meets government standards.
Temperature —tire’s ability to withstand heat. Tires graded A are the most heat‐resistant and less likely to suffer a blowout under the same conditions as tires with grades of B or C.
Treadwear rating — the higher the treadwear rating the greater the mileage – a tire with a treadwear rating of 150 is expected to last 50 percent longer than one graded at 100.
©Virginia Department of Education
Traction, Tires, and Pavement
 Road surface – rough or smooth
 Road Conditions – wet, icy, etc., surface will reduce friction/traction  Speed and Direction – how fast and where is it headed?  Tire Tread and Inflation
 Braking Techniques
 Steering Inputs
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Inflation, Wear and Temperature
Tire maintenance
 Improves vehicle
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handling & fuel
economy.
Increases the life of
your tires.
Prevents
breakdowns and
crashes.
Maintain Proper Air Pressure, Tire Tread Alignment and Balance & Rotate Tires
©Virginia Department of Education
©Virginia Department of Education