International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 05 | May 2024
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p-ISSN: 2395-0072
Airbag System Neha Koli1, Bhargavi Dongale2, Pravin Gosavi3 1U.G. Student, Department of Mechanical Engineering, at Kolhapur Institute of Technology’s College ofEngineering (Autonomous), Kolhapur. 2U.G. Student, Department of Mechanical Engineering, at Kolhapur Institute of Technology’s College ofEngineering (Autonomous), Kolhapur. 3Assistant Professor at Kolhapur Institute of Technology’s College of Engineering (Autonomous), Kolhapur. --------------------------------------------------------------------***-------------------------------------------------------------------1.1. Crash Severity Abstract - The design of airbag systems in vehicles incorporates adaptive conditions to ensure optimal deployment and enhance occupant safety during crashes. These conditions are meticulously calibrated to respond to diverse factors, reflecting advancements in sensor technology and a commitment to strict safety standards. Crash severity is a primary determinant, with sensors gauging impact intensity. Airbags are programmed to deploy during moderate to severe collisions, surpassing predefined impact thresholds. Additionally, sensors discern the impact direction, allowing selective deployment based on whether the collision is frontal, side, or rear. Occupant safety is further addressed by considering position and weight. Advanced systems adjust deployment force based on occupant attributes, ensuring optimized protection. Seatbelt usage is also factored in, influencing deployment force depending on whether seatbelts are engaged. In scenarios involving multiple collisions, the system adapts by deciding not to deploy airbags in secondary impacts if already deployed in the initial collision. Vehicle speed at the time of impact is crucial, influencing airbag deployment for enhanced protection during high-speed collisions. Roll-over sensors add an extra layer of safety, detecting potential roll-over situations and triggering side curtain airbags. Furthermore, braking and acceleration patterns just before a collision are considered to fine-tune the airbag deployment strategy. This adaptive approach to airbag deployment varies between vehicle makes and models, highlighting the continuous evolution of safety measures. Rigorous testing and adherence to safety standards by manufacturers underscore the commitment to ensuring airbags deploy appropriately in diverse and challenging scenarios.
Airbags are designed to deploy during moderate to severe crashes. The system uses sensors to measure the intensity of the impact, and if it exceeds a predefined threshold, the airbags are deployed.
1.2 .Impact Direction Sensors in the vehicle can determine the direction of impact. Airbags may deploy selectively based on whether the collision is frontal, side, or rear, deploying only those airbags that are most relevant to the impact.
1.3. Occupant Position and Weigh Advanced systems take into account the weight and position of the occupants. They may adjust the deployment force or decide not to deploy certain airbags if the sensors detect that the seat is unoccupied or a child is in the seat.
1.4. Seatbelt Usage Some airbag systems consider whether occupants are wearing seatbelts. In certain situations, the deployment force may be adjusted based on whether the seatbelt is being used to optimize protection.
1.5. Multiple Collisions If a vehicle is involved in multiple collisions, the airbag system may adapt its response. It may choose not to deploy the airbags in a secondary collision if they have already deployed in the initial impact.
Key Words: Adaptive condition, Sensor technology, Crash severity, Occupant Attributes, Multiple collisions, Roll-over Sensors
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1.6. Vehicle Speed The speed of the vehicle at the time of impact is considered. Higher speeds may trigger airbag deployment to provide additional protection during more severe collisions.
INTRODUCTION
Airbag systems in vehicles are designed to deploy under specific conditions to maximize safety for occupants. These conditions are typically adaptive and take into account various factors to ensure the airbags deploy when needed. Here are some common adaptive conditions for airbag deployment:
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Impact Factor value: 8.226
1.7. Roll-Over Sensors Some vehicles are equipped with sensors that can detect a potential roll-over. In such cases, side curtain airbags may be deployed to protect occupants in the event of a roll-over.
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