Similar to Code Clearing – As technology in our cars continues to expand - it is helpful to have an understanding of why and how these calibrations play a part in the repair process.
You may have heard the acronym ADAS (Advanced Driver Assistance System)
Put simply, radar detection units that are in your vehicle are there to assist the driver avoid a collision, they also enhance protection for pedestrian and cyclist safety.
They work by bouncing radio waves off of objects in the path to determine distance or speed.
So for example, the active (adaptive) cruise control assists to control your speed by reacting to the speed of the vehicle in front. As they slow, so do you. If your radar is not directed exactly at the correct angle, it cannot identify the correct object or speed ahead.
Similarly, lane change assist works by bouncing radio waves off objects that are near to the side of the vehicle, providing an alert if there is an object in the vicinity. If the angle of the radar unit is directed incorrectly, there is a heightened possibility of collision.
Manufacturers have procedures to consider when repairs are needed.
These include items that may require replacement after impact like the bracket system to ensure the accurate repositioning of the radar unit.
Even the paint thickness (microns) plays a part, if the paint has too many layers or is applied incorrectly it impedes the distance that the sensor can project through, effectively shortening the distance or changing the angle.
Calibrations can require connections to scan tools, sight boards and targets and also involves dynamic testing which requires driving the vehicle in a range of traffic conditions to allow the vehicle to ascertain its position in relation to the road, other uses and sign posts. These road tests are critical to confirm correct operation, and can take up to 40 minutes to run through the entire system.
Calibrations carried out by qualified technicians can provide assurance that these systems are back to optimum performance post repair.
