Patent ID: 6215283
Filing Date: 2001-04-10
Classification: H02J,Y02T

Abstract:
A method for powering electrical consumers in a motor vehicle with an internal combustion engine and recharging a battery, which comprises:providing an alternator having a rotary speed, the alternator producing an excitation current;controlling an intensity of an excitation current for the alternator in dependence on an operating condition of the engine and of the vehicle during each trip, bya) determining an initial state of charge of the battery;b) computing a probable time profile of the rotary speeds of the alternator for the respective trip;c) measuring a current absorbed by the consumers;d) determining an optimum time profile of the excitation current for the alternator such that a final state of charge of the battery at the end of the trip is at least equal to a predetermined threshold; ande) controlling the intensity of the excitation current in accordance with the optimum time profile.