Internet Of Things (Iot) For Electric Car Battery Capacity Controller Jefri Lianda, M. Afridon, Zamhuri, Dea Fitriana, Gusti Eviani
Bengkalis State Polytechnic
Abstract
This paper discusses a 58 volt battery voltage control system for electric vehicles using the Blynk application. The research successfully monitors the amplitude of the battery voltage. Additionally, it includes the capability to control the battery via an SSR relay, which is connected to the NodeMCU ESP8266. The Blynk application displays both the amplitude and the percentage of the battery voltage. The NodeMCU ESP8266 has demonstrated reliable performance, maintaining a stable connection as long as it is connected to the internet. The average voltage discrepancy shown on the Blynk application is 0.74%. The SSR relay disconnects the power supply to the electric vehicle when the battery voltage approaches 46.3 volts or when the battery capacity percentage drops to 0.16%. This system ensures that the battery is managed effectively, preventing over-discharge and potential damage by disconnecting the load at critical voltage levels
