Analysis of PM Dimensions in Disc Pad Interaction in Commercial Vehicles
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Keywords:Braking System, Vehicle Technologies, Disc, Brake Pad, Particulate Matter
Nowadays, the brake system plays an essential role in commercial vehicles, and brake systems are created with different working principles and designs. While mechanical, hydraulic, and hydraulic pneumatic brake systems were used at the beginning, pneumatic brake systems have started to be widely used due to technological developments. The need for braking, especially in situations such as downhill descent, has also created additional brake systems. In addition to safe and optimum braking, these systems aim to provide a longer life for the brake pads, which are essential parts of the brake system, and wear out in a shorter time than the disc or drum. For many years, various standards have been established for vehicle emission standards, and these standards have been reorganized according to the day's conditions. The basis of vehicle standards is the reduction of emissions from combustion in internal combustion engines. In addition to reducing emission rates from internal combustion engines in international standards, there are efforts to standardize the amount of particulate matter from other systems, such as vehicle tires or brake systems. These standards are also crucial for electric vehicles rapidly replacing internal combustion engines. In this study, a sample taken from the brake lining of a load-carrying commercial vehicle was subjected to an abrasion test in a pin-on type device, and the resulting PM mass number quantities and average particulate matter sizes were determined.
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