VW Self-Study Program 871803 Occupant Protection Systems.pdf

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Service Training
Self-Study Program 871803
Occupant Protection Systems
Volkswagen Group of America, Inc.
Volkswagen Academy
Printed in U.S.A.
Printed 10/2008
Course Number 871803
©2008 Volkswagen Group of America, Inc.
All rights reserved. All information contained in
this manual is based on the latest information
available at the time of printing and is subject to
the copyright and other intellectual property rights
of Volkswagen Group of America, Inc., its affiliated
companies and its licensors. All rights are reserved
to make changes at any time without notice.
No part of this document may be reproduced,
stored in a retrieval system, or transmitted in any
form or by any means, electronic, mechanical,
photocopying, recording or otherwise, nor may these
materials be modified or reposted to other sites
without the prior expressed written permission of
the publisher.
All requests for permission to copy and redistribute
information should be referred to Volkswagen Group
of America, Inc.
Always check Technical Bulletins and the latest
electronic repair information for information that may
supersede any information included in this booklet.
Trademarks: All brand names and product names
used in this manual are trade names, service marks,
trademarks, or registered trademarks; and are the
property of their respective owners.
Contents
Introduction ............................................................................... 2
Basic Concepts........................................................................... 6
Passive Occupant Protection Systems .................................. 16
Knowledge Assessment .......................................................... 75
Note
Important!
This Self-Study Program covers information on
the Volkswagen Occupant Protection Systems.
This Self-Study Program is not a Repair Manual.
This information will not be updated.
For testing, adjustment and repair
procedures, always refer to the latest
electronic service information.
i
Introduction
Occupant Protection System
The overall occupant protection system is sub-
divided into the two categories of active and passive
safety. The following overview is intended to show
which safety elements are assigned to active and
which to passive occupant protection.
Active Safety
Active safety encompasses everything that may
contribute toward preventing accidents wherever
possible. This includes direct and comfortable
steering, good engine/transmission characteristics
and coordination, good traction, and effective brakes.
Fatigue-free seats, clear visibility, good climate
control plus clear and uncomplicated controls and
displays help to maintain the driver’s safety.
The active safety systems include the following
systems, for example:
–
A
nti-lock
Brake System
— ABS
–
T
raction
Control System
— TCS
–
E
lectronic
Stabilization Program
— ESP
–
E
lectronic
Brake Distribution
— EBD
–
A
daptive
Cruise Control
— ACC
–
E
lectronic
Differential Lock
— EDL
2
Introduction
Passive Safety
Passive safety refers to all design engineering
measures which serve to protect vehicle occupants
from injury and to minimize the risk of injuries in the
event of an accident.
The term particularly refers to crash behavior and
gives consideration to both personal protection and
the protection of other road users in the event of an
accident.
The most important passive safety features in
modern vehicles include:
– The safety belt system with safety belt pre-
tensioners, including child restraint systems
– The airbag system, consisting of front, side and
Side Curtain Protection airbags
– A rigid passenger compartment with
corresponding roof stiffness plus crumple zones
in the front, rear and side areas
(these protect
occupants by dissipating impact energy)
– Roll-over protection for convertibles
– Battery interrupter devices
3

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