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Auto glass plays a critical role in vehicle safety, and with the increasing use of Advanced Driver Assistance Systems (ADAS) in modern vehicles, calibration is becoming an essential aspect of auto glass installation. In this article, we will explore the importance of auto glass and calibration, the different types of calibration, and the process involved in calibration.
The Importance of Auto Glass in Vehicle Safety
Auto glass serves as a barrier between the driver and the environment, protecting passengers from debris, weather elements, and other hazards. Auto glass also provides structural support to the vehicle, enhancing its strength and rigidity.
In addition to its protective role, auto glass plays an essential role in ADAS systems. Many modern vehicles are equipped with sensors and cameras that rely on a clear and undamaged windshield to provide accurate data to the ADAS system. Any damage or obstruction to the windshield can compromise the effectiveness of the ADAS system, putting the driver and passengers at risk.
The Importance of Calibration
Calibration is the process of adjusting and aligning the sensors and cameras mounted on the windshield to ensure that they are providing accurate data to the ADAS system. Calibration is necessary after any auto glass replacement or repair, as these procedures can cause misalignment or damage to the sensors and cameras.
Without proper calibration, the ADAS system may not function correctly, leading to false alarms or the failure of critical safety features such as lane departure warning, forward collision warning, and automatic emergency braking. This can result in accidents or injuries, compromising the safety of the vehicle’s occupants and others on the road.
Types of Calibration
There are two types of calibration involved in auto glass installation:
Static calibration is the process of aligning the sensors and cameras mounted on the windshield to the correct position and orientation. This is a critical step after auto glass replacement, as misalignment can lead to inaccurate data and compromise the effectiveness of the ADAS system.
Dynamic calibration involves testing the ADAS system under actual driving conditions to ensure that it is functioning correctly. This type of calibration is necessary when the ADAS system is unable to self-calibrate, or when the static calibration does not resolve any issues with the ADAS system.
The Process of Calibration
The following are the steps involved in calibration:
Before calibration, a pre-scan is conducted to check the ADAS system’s operation. This scan provides a baseline for the system, allowing any changes to be identified after calibration. The pre-scan is typically done using diagnostic equipment that can read the ADAS system’s data.
If the auto glass is damaged and needs replacement or repair, it is done at this stage. During this process, care is taken to ensure that the sensors and cameras are not damaged or misaligned. The auto glass is also cleaned thoroughly to ensure that there are no contaminants that could interfere with the sensors’ operation.
Once the auto glass is replaced or repaired, calibration is performed. This involves adjusting the sensors and cameras mounted on the auto glass to ensure that they are properly aligned and calibrated. Calibration can be done using specialized diagnostic equipment that can adjust the sensors and cameras’ alignment and calibration settings.
After calibration is completed, a post-scan is conducted to check the ADAS system’s operation. This scan checks the sensors and cameras’ alignment and calibration and ensures that they are working correctly. Any discrepancies between the pre-scan and post-scan are identified and addressed.
After the post-scan, a final verification test is conducted to ensure that the ADAS system is operating correctly. This test confirms that the sensors and cameras are providing accurate data and that the ADAS system is working as intended.