charging system of a pair of mutually connected series batteries of a heavy vehicle and heavy vehicle implementing the system

摘要

a system for charging a pair of mutually connected series batteries of a heavy vehicle, the system comprising at least one alternator (g3) connected to a vehicle power supply system, the battery pair (b1, b2 ) being mutually connected in series (b1 + b2) and to the vehicle power supply system, the monitoring means (s) for monitoring the charge voltage (vtot) of the battery series (b1 + b2), the means (vcu, ecu) suitable for interacting with monitoring means (s) and configured to control at least one alternator (g3) to vary their supply voltage, with the processing means (vcu, ecu ) are configured to command the start of a battery series charging process (b1 + b2) when the difference between the respective voltages exceeds a first preset threshold value and to command the interruption of said charging process when the derivative of current absorbed by the battery series (b1 + b2) exceeds a second predefined negative threshold.