30-07-2014, 11:36 AM
COMPLETE AUTOMOTIVE SAFTEY
COMPLETE AUTOMOTIVE SAFTEY.doc (Size: 409.5 KB / Downloads: 67)
ABSTRACT
Safety conscious design has always been and remain a vital aspect in car development .The increasing luxury and power of the cars pays major role for the instability and poor safety of the automobile .Here is the safety precautions which prevents the major porn parts of human life .This safety system consist of the Emergency tensioning device ( ETD ) , properly positioned air bags and an highly improved XDS tech glasses, which are assisted by sensor to give the maximum safety for pleasure riding .The position of air bags helps to protect the vital human from injury in case of accidents .The emergency act of the seat belt tension make the victim to be back rest and relative lower body movement. We think that this safety avoids the major loss of life in case of an accident
INTRODUCTION
The modern passenger cars have become not only faster but more comfortable and consididerably safer. And even though the traffic volume our roads has increased several fold the risk of accident remain relatively high. Due to the modern safety system adopted .Seat belts and airbags are perhaps two of the most well known and still most effective system. The protective capabilities of these systems can only be fully realized if seat belts are used on every trip buckle up and then drive. Wearing seat belt can alone prevent many injuries or lessen the severity of injuries. Where as an air bag alone cannot provide the same degree of protection since they are designed only to supplement the protective effect of the seat belt.
UNDERSTANDING SAFTEY
In order to understand how seat belts and air bags provide protection it is important to know about occupant movement in the event of an accident. Upon impact the vehicle either decelerated rapidly or accelerated when hit by a moving object such as another vehicle. When this occur inertia always causes the occupants to move in the opposite direction to the applied impact force. The safety systems are intended to reduce the risk of contact between the occupants and vehicle interior. However glasses generally prevent the risk of injuries caused by objects entering the vehicle from outside.
EFFECTIVE CO- OPERATION OF AIR BAGS
Air bags can do a lot but not every thing .An airbag increases the protection potential for a vehicle occupant properly wearing a seat belt. However, even if the vehicle is equipped with airbags occupants must still fasten their seat belts properly before every trip. The vibration sensor which is connected in the circuit of airbag deployed gives the signal to the airbag circuit for their action. On the one hand, a front airbag is only deployed in event of an accident if the protection potential offered by the seat belt needs to be supplemented the seat belt helps to keep the occupant in a more favorable position to the airbag.
CRITERIA FOR CONTROL CENTER SYSTEM
In order to determine the necessity to deployed an airbag the electronic control unit evaluates the direction and the intensity of the vehicle deceleration or acceleration over time during the early phase of an impact .The airbag deployment threshold are variable and are adopted in response to the intensity of the sensed impact. Vehicle deceleration or acceleration and the impact force direction are determined based on the force distribution, the impact angle, the vehicle deformation characteristics and the characteristics of the object with which the vehicle collides.
INTELLIGENT SYSTEM
The driver’s front airbag is installed in the steering wheel housing whereas the front passenger airbag is housed above the glove compartment. Upon deployment a front airbag has the function to eliminate or reduce the risk of contact between the driver’s head and chest and the steering wheel or the front passengers head and chest and the dash board. The airbags which are installed in the position deployed in the respective sections
SURVEY
One may not realize it, but developing the first airbag for the commercial use took around 13 years of the development work which marked the beginning of the new era in the vehicle safety. According to the accident research the air bag has saved over 14,200 human lives in USA to date. In Germany the airbag has prevented over 2,500 fatal injuries to car occupants since 1990.Now so far the car manufactures equipped more than 12 million vehicles with safety aspects all over the world.
VISION FOR THE FUTURE
The manufacturers are looking in to the possibility of a protective system the automatically adapts itself to take in to account the current accident situations and the car occupants. If developed a stage airbags could then become an integral part of the system deploying before impact in several slower stages and with greater volume of air in order to protect the occupants for a longer period of time. Another priority for the airbags of tomorrow is to provide even more personalized protection. For example, it should be possible to program the on board computer with information such as the age, sex and biometric data of the occupants in order to tailor the protection system to individual requirements
CONCLUSION
The recent trend manufacturer’s shows keen interest in safety and pleasure riding. The seat belts and the airbags which are now a important attachment of the cars must be utilized fully for safer riding. The weakest and most harzdous part the glasses in cars are also now made to add safety with the advanced technology. If this condition persist the safety factor in cars will reach a pioneer position. With these kind of improved technology will pay way for usage of large number of passenger cars.