Alternator Management System

Alternator management system controls the charging voltage set point in order to improve fuel economy, manage alternator load under various operating conditions, keep the battery charged, and protect the battery from over-charging. ECM controls generating voltage by duty cycle (charging control, discharging control, normal control) based on the battery conditions and vehicle operating conditions.

The system conducts discharging control when accelerating the vehicle. Vehicle reduces an alternator load and consumes an electric power form the battery.

The system conducts charging control when decelerating the vehicle. Vehicle increases an alternator load and charges the battery.