Table of Contents
Advertisement
Fig.9-37. Steering components:
1 - steering mechanism; 2 - seal; 3 - middle shaft; 4 - upper steering column
shroud; 5 - steering wheel; 6 - bracket; 7 - lower steering column shroud;
8 - clamp bolt, universal joint; 9 - securing bolts, steering mechanism; 10 -chas-
sis arm; 11 - drop arm
Fig.9-38. Steering components:
1 - steering mechanism; 2 - seal; 3 - middle shaft; 4 - upper shaft; 5 - bracket; 6 - upper shroud; 7 - ball bearing; 8 - race; 9 - cap; 10 - steering wheel; 11 - nut; 12 - infla-
tor unit with integral impact sensor; 13 - airbag module; 14 - lower shroud; 15,16 - fixtures, steering shaft bracket; Ä - fixing pin; Ç - D-shaped outlet, ignitor unit
Steering with BREED «SRS-40» driver's
airbag in the steering wheel
Design description
The SRS-40 system is housed in the steering wheel, being
an additional protection to the seat belt, the system is intended to
prevent serious chest and head injuries to the driver.
The system is activated at the frontal impact and at 30°
impact leftward and rightward to the vehicle centre line. The sys-
tem is not activated during:
- impacts at more than 30° to the vehicle centre line;
- side impacts;
- rear impacts;
- rollover;
- minor frontal impacts.
The SRS-40 system consists of the following main compo-
nents:
- gas generator (inflator) with a built-in impact sensor;
- airbag module;
- special steering wheel with fixtures.
The system is activated by inertial impact force via triggering
a mechanical sensor (opposite to electrical pulse), which oper-
ates the gas generator, thus making redundant wiring and power
supply. Since the system is mechanical, there is no need in the
warning light or diagnostic unit. The system is always ready to
operate, it is maintenance-free, though after seven years in field
the gas generator is subject to mandatory replacement.
209
Advertisement
Table of Contents
