The safety of the car interior devices

Mar 11
11:25

2012

jodie mht

jodie mht

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Electronic sensor no electrical contacts in the other collision, the common have resistance strain type and piezoelectric effect type two kinds.

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In the process of vehicle,The safety of the car interior devices Articles the sensor system to control device constantly send speed change (or acceleration) information from bag control module (ECU) for the information to the analysis judgment, if the acceleration, speed variation or other index more than a preset value (that is, really happened in crash), the capsule control module to send a body generator gas ignition command.MQB platform is one of the important characters of all engines to adopt the same position of supporting, and modular gasoline engine system (MOB) and modular diesel engine system (MDB) will be in MQB platform plays an important role. New research and development EA211 series of gasoline engine power output of between 60 horsepower (40 kW) to 150 HP (110 kW) between, and the first mass production of the new 1.4 ST engine will also introduce the ACT variable displacement technology, so as to become the world's first have this kind of technology of the four cylinder engine.According to the structure is different, also can be divided into collision sensor electromechanical collision sensors, electronic and mechanical collision sensor collision sensor. Protective collision sensor general use of the electronic structure, triggering the collision with the car cameras mechanical and electrical sensors general type structure or mechanical structure. Mechanical and electronic combination type collision sensor is through mechanical movement (scroll or turn) to control electrical contacts action, again by contacts and closed to control air off of the circuit connected and cut off, common has the ball type and eccentric of hammer type collision sensor. Electronic sensor no electrical contacts in the collision, the common have resistance strain type and piezoelectric effect type two kinds. Mechanical collision sensor common are mercury switch type, it is the use of mercury the characteristics of air to control electric circuit and cut through.The gas generator is stored in nitride sodium or ammonium nitrate and other substances. As the car at a high speed by violent collisions, these substances will happen quickly decomposition reaction, produce the massive gas (avirulent insipidity of nitrogen is more than 70%), filled with car DVD player air bags. And a new type of airbag joined can classification inflatable or release the pressure of the devices, in order to prevent a sudden explosion point produced a pressure to the human body to produce damage. Grading point explosion device, namely the gas generator points two level point explosion, the first level produce about 40% of the gas volume, is far lower than the maximum pressure, head of mobile produce buffer role, the second point blasting residual gas produced, and achieve maximum pressure. And release the pressure way is in the classification on the bag is open air pressure relief hole or adjustable pressure hole, the pressure to achieve a began to set the limit, can be instantaneous release the pressure to avoid excessive damage caused to passengers.In addition, air bag system and standby power, and backup power supply circuit by power supply control circuit and some of capacitor. When car collision lead to battery and generator and air bag system disconnect, standby power in a certain time (usually 6 seconds) can maintain airbag systems, power supply.In order to guarantee the steering wheel has enough rotation Angle and not damage the air bag components connect cable in the steering wheel and the steering the spiral between the harness, is about to harness installed in spiral spring inside .