PENGAPLIKASIAN POWER BACKUP PADA SISTEM PENGAMAN MOBIL MENGGUNAKAN BATTERY MANAGEMENT SYSTEM (BMS)

Abstract

In the current era of digitalization technology, there are many developments that can be resolved to support and have a positive impact on the application system, one of which can be applied to a security system related to the splendor of theft that often occurs in the theft of two-wheeled or four-wheeled motorized vehicles in the absence of a system. security is available so that the theft can easily occur. One way that is used to avoid theft is that the security system must be able to operate for a long time so that a power backup is needed where the battery is a storage medium for electrical energy in the form of chemical energy that can be converted into power. In cases that are found the battery is easily damaged and has a short life time. Damage to the battery is caused by improper use and the battery is not equipped with a protection and monitoring system, so that the battery continues to operate even though it is in over-voltage, over-current and over-heated conditions when charging and also experiences under-voltage when discharging. BMS has three functions, namely computation, monitoring, and protection. State of Charge (SOC) measurement accuracy has an important aspect in the design of the Battery Management System. Accurate SOC measurement can prevent the battery from being overcharged and undercharged. The protection system on the BMS will be active when the battery is in non-ideal conditions so that the battery is not easily damaged and can reduce the decrease in life time. The maximum voltage during the charging process is 12.6V with a time of 112 minutes, and the minimum voltage during the discharging process is 9.3V with a time of 609 minutes.