TIGOR EV

SUPPLEMENTARY RESTRAINT SYSTEM (SRS) 1 1. WORKING OF RESTRAINTS RESTRAINTS WITH AIRBAGS This restraint system falls under the category of Supplementary restraint system. SUPPLEMENTARY RESTRAINT SYSTEM (SRS) Air bags are the secondary restraint system as for the activation of air bag no action is require by the vehicle occupant. WARNING Every occupant shall wear seat belts whenever they ride a vehicle. This is applicable whether a vehicle is equipped with supplementary restraints systems (SRS) or not. WORKING OF SRS Whenever there is an accident, the sensor mounted remotely sends crash signal to the ECU. The type of accident and its severity, determines the time-to-fire different airbags in the system. The basic function of an airbag is to provide cushioning effect to occupants. There are remote sensors mounted for sensing different frontal and side accidents. These sensors are connect to the electronic control unit (ECU) of the system. When an accident event input signal crosses a pre-defined threshold level in ECU, the ECU triggers the relevant restraints components in the system. This helps in providing necessary protection to occupants. The airbags and seat belt pre-tensioners are triggered through ECU signal. The load limiter in the seat belts is a mechanical device which is activate when the forces on the occupant upper body region crosses a defined force threshold limit. COMPONENTS 1. ECU 2. Front Remote Sensing Unit 3. Air bags  Driver air bag  Passenger air bag 4. RPLL 5. ELR+LL 6. Clock spring 7. Airbag warning lamp 8. Airbag warning labels 9. Micro switch (inside seat belt buckle)