The black box in the car serves first of all to extrapolate from driving into a sequence of objective, measurable and verifiable data, especially useful when an accident occurs. It is an electronic device equipped with GPS that records the vehicle’s physical parameters, such as speed, acceleration, braking and geographical position, with the aim of scientifically reconstructing what happens before, during and after an accident. This tool has become central for insurance companies because it reduces uncertainty in assessing responsibilities and also offers concrete advantages to motorists, from discounts on car insurance premiums to the possibility of finding the vehicle in the event of theft or automatically sending requests for automatic assistance after an impact.
What is the car’s black box, how it is made and how it works
When we talk about a black box we are referring to a small electronic device installed on the car, often via the insurance company, capable of collecting information on the movement of the vehicle. The heart of the system is GPS (Global Positioning System), i.e. the satellite system that allows you to determine the position of the car on the earth’s surface. This is accompanied by an accelerometer, a sensor that measures speed variations along multiple axes and which allows you to detect sudden braking, sudden accelerations or impacts. In some models we also find a GSM module (Global System for Mobile Communication), which is used to transmit data to an operations center. All this information is processed by a microprocessor and stored so as to be able to precisely reconstruct the dynamics of an accident, i.e. the sequence of events which, in fact, led to a road accident.
One of the key points is precisely the objectivity of the data. The recorded information cannot be altered by the driver and therefore becomes a useful tool for both the insured and the company. In the event of an accident, it is in fact possible to demonstrate where the car was, how fast it was traveling and whether there were any anomalous manoeuvres. This reduces the risk of disputes and also helps the police when they have to ascertain the responsibilities of the parties involved. At the same time, by analyzing parameters such as the frequency of intense braking or violent acceleration over time, insurance companies can evaluate driving style, i.e. the usual way in which a user drives their vehicle.
Installing the black box in the car, in the vast majority of cases, is not do-it-yourself. The device is mounted in affiliated workshops, in precise positions in the passenger compartment, often under the dashboard or, in any case, in hidden areas. Its correct fixing is essential to accurately measure all the various data. The cost of purchase and assembly is generally borne by the insurance company; If you change insurance companies, you may be asked to pay for the uninstallation of your previous device.
The advantages of having the black box in your car
Among the most obvious advantages is the discount on the car insurance premium, which by law must be recognized and can lead to a significant reduction in the annual cost (even around 15-20%, it clearly depends from company to company). Added to this is the localization function: if the car is stolen or if we suffer an accident in an isolated area, the geolocation data allows us to quickly locate the vehicle and activate vehicle searches and/or rescue operations. Some systems also provide for the automatic sending of a roadside assistance request when the accelerometer detects an impact above a certain threshold.
Some myths to dispel about the black box
Regarding any privacy implications of using the black box in the car, it is important to clarify that it does not record conversations or sounds inside the passenger compartment: it only collects driving data. Access to information is regulated and companies can use it mainly in the event of an accident, in compliance with current regulations on the protection of personal data.
Another widespread fear is the impact of the black box on the vehicle’s battery. This is also an unfounded fear: the device has an internal battery and does not affect the life of the car’s battery.
The black box is not EDR
To conclude on a high note, let’s make a specification. The black box should not be confused with EDR. The EDR (Event Data Recorder) is an event recorder installed directly by the vehicle manufacturer and must be installed on newly approved devices from 6 July 2022 and on all newly registered cars from 7 July 2024 following the entry into force of EU Regulation 2019/2144. Unlike the “traditional” black box, the EDR is not always active: it records data only during serious events, for example when the airbags are activated due to strong impacts, when a rollover occurs, and so on. EDR does not store GPS location and the data it collects is only accessible to the relevant authorities for post-crash investigations. The insurance black box, on the other hand, was created to accompany the user in daily driving and to provide a continuous and measurable picture of the vehicle’s behavior, becoming a technological ally that goes far beyond the simple anti-theft function.
