CALCULATION FEATURES OF ELECTRIC VEHICLE BRAKING SYSTEM ELEMENTS DURING BRAKING

Abstract

It is noted that in electric vehicles, i.e., electric cars, increased loads most often occur on components that either operate in high traction/braking modes or bear impact and thermal effects, such as recuperation. One of the highly loaded components of an electric vehicle (EV) is its braking system. This is especially characteristic of the combined braking mode, which includes regenerative and mechanical braking. The reasons why the braking system of an electric vehicle requires increased attention are considered. Among the most important of these are intensive operating modes, high cyclicity, the hybrid nature of braking (including regenerative braking and mechanical braking), electromechanical risks, fault tolerance issues, and wear processes of brake components. Six features of the braking processes of electric vehicles are identified and described in detail. The article examines the calculation features of an electric vehicle's braking system and its main components, presenting a number of calculation formulas for determining the energy, thermal, and other brake characteristics. An algorithm that can be implemented using the electric vehicle's onboard microelectronics is presented. It is noted that the onboard computer checks the main parameters. If the monitored parameters are within acceptable limits, a message is displayed on the driver's display confirming the vehicle's operability. Otherwise, further testing and diagnostic work is required.