The resulting gas flows through a filter screen at a pressure of approx. The chemical reaction that takes place following the firing causes temperatures of 700☌ in the combustion chamber. Which propellant is used depends on the size of the airbag and the required opening speed. The safing sensor is used as a safety sensor. For safety reasons, in order to avoid the airbag(s) being deployed unintentionally, two sensors that operate independently from one another must always send the information to deploy the airbag(s). The deployment threshold is an acceleration of approx. When mounting the crash sensors, always observe the installation direction, which is indicated by an arrow on the sensor. If the door sealing foil has been incorrectly fitted and this results in pressure loss during an accident, the function of the pressure sensors may be impaired. When working on vehicles that use these pressure sensors, it is essential to properly refit the door sealing foils following their removal. They are installed in the doors and respond to changes in pressure inside the doors in the event of an accident. Thanks to the speed at which they can record information, these sensors are used to supply information to the control unit as quickly as possible in the event of a side impact. Due to the way in which the mass is suspended in the sensor, this changes the electrical capacitance, which serves as information for the control unit. If force is applied, the silicon mass in the sensor moves. Nowadays, airbag systems are provided as standard in vehicles.Īnother expansion option for movement sensors is to use a silicon mass. The end of the 1980s saw the introduction of the front passenger airbag, and this was gradually followed by other variants such as the head airbag and side airbag. The first airbag systems were installed in top-of-the-range vehicles in the mid-1970s and at the start of the 1980s. The first successes were recorded at the start of the 1970s with the use of pyrotechnic propellant charges to inflate the airbag in the specified time. Attempts were made to solve the problem using compressed air, but this solution was unsuccessful. At that time, a major obstacle was the time available for the airbag to inflate. The initial idea for an airbag system can be traced back to the 1960s. Maintenance and diagnostics must only be performed by appropriately trained professionals.Įnsure that all legal principles and guidelines are complied with when carrying out this work. If you would like more detailed data on the systems installed in specific vehicles, always consult the vehicle manufacturer's specifications. As such, we will only describe the components and processes in general terms. Recent years have seen rapid advancements in airbag technology since airbag systems were first introduced. We will explain the individual components, what they do, how airbags are deployed, and steps you can take when troubleshooting. This section focuses on the airbag system. Home / Car parts / Sonne repainting systems.Exhaust gas aftertreatment design diagnostics.

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Aer bag srs clamp