One of the most important safety features of a car is its brakes. Therefore, car manufacturers must ensure that their brakes are up to par with safety regulations. Renault is no different, as its brakes must conform to various EU regulatory requirements. In order to understand Renault brakes, it is important to become familiar with the engineering standards, tests, and certifications that govern brake performance.
In the European Union, there are various regulations that must be met in order to approve braking systems used in Renault vehicles. One of the most important regulations is ECE Regulation 90. This regulation is applicable to passenger cars, light commercial vehicles, and includes heavy goods vehicles. The main requirements of this regulation focus on the brakes themselves, their components, how they perform, and how to test their performance.
One of the most important standards for Renault brakes is the braking performance standard. This standard requires that all brakes must be able to stop the vehicle within a distance that is shorter than the distance calculated from its speed according to certain tables. This braking performance standard is tested in laboratory settings, with accelerometers measuring the resulting stop distances. It is also tested in road environment simulations, where the brake system is tested for durability, along with its ability to perform regularly within the simulated environment. It is important to note that these lab tests are only applicable with European cars, as some vehicles have different braking standards.
Another inspection that must be carried out is a dimension measurement. This test applies to components such as disc brakes and drums. It measures the diameter of the brake parts, such as the diameter of the disc rotor. This test is necessary to ensure that the brakes are suitable to be used with the vehicle.
Finally, the last requirement is the seal test, which is a test of the integrity of the brakes. The seal test is conducted to ensure that the brakes are able to maintain their seals when under pressure, and that they are able to withstand extreme temperature changes and vibrations. When conducting this test, a pressure-test chamber is used to inspect the integrity of the seals.
In order for Renault brakes to qualify for regulatory requirements, these tests must be conducted and the results must meet certain standards. Once passed, the brakes will receive a certificate that denotes its compliance with EU regulations. It is important for Renault to ensure their brake systems meet these standards in order to provide customers with safety and reliability.