Malaysia
Compact:
Valve terminals of the type CPV control the vacuum suction
mechanism.
Airbags are standard equipment in many modern vehicles.
They contribute to passive safety by minimising the effects of
accidents. Vehicles may contain multiple airbags in various
side and frontal locations of the passenger seating positions,
and sensors may deploy one or more airbags in an impact zone
at variable rates based on the type and severity of impact.
A central Airbag Control Unit monitors a number of related
sensors within the vehicle, including accelerometers, impact
sensors, side (door) pressure sensors, wheel speed sensors,
brake pressure sensors and seat occupancy sensors. When
the requisite ‘threshold’ has been reached or exceeded, the
airbag control unit will trigger the ignition of a gas generator
propellant to rapidly inflate a nylon fabric bag. To ensure that
this process runs smoothly, ixmation MALAYSIA has developed
a machine that checks the assembled igniters for leaks during
the production process.
In the so-called ‘bombing test’, the assembled airbags are placed
in a bombing chamber. Here, they are subject to high helium
pressure for an extended length of time. If the igniter is leaking,
helium will be able to penetrate the device. The leakage is
then measured precisely in the vacuum chamber using a mass
Put to the test
‘
Bombing test’ for airbag igniters
spectrometer. The vacuum suction mechanism is controlled
by compact valve terminals of the type CPV with direct fieldbus
connection. DGSL cylinders meet the requirements for short
cycle times and accuracy of +/- 0.01 mm. The HGPL gripper was
also selected due to its long stroke and T-slot design which
ensures stability when transporting the units.
The system for the helium leak test
significantly increases production
quality in assembly processes
and contributes to greater safety.