摘要:
The method comprises filtering the current delivered by an electrical power supply network and feeding the electrical power from the network to the battery (B) via a voltage step-down stage (3) and a voltage step-up stage (4) while controlling the chopping duty ratios of said voltage step-down and step-up stages. Furthermore, the harmonics are compensated using a variable gain amplification stage. Moreover, the impedance of the power supply network is determined and the variable gain is adapted according to the impedance of the network.
摘要:
Device for charging an automotive vehicle battery making it possible to compensate for the harmonics, automotive vehicle furnished with such a charging device and corresponding method of charging. This chopping device for a battery, in particular for a tractive or at least partially electrical automotive vehicle battery, comprises a filtering stage (2) intended to be connected to a supply network, a voltage step-down stage (3) connected to the filtering stage, a voltage step-up stage (4) coupled to the voltage step-down stage and intended to be connected to the battery and a regulating unit (15) able to impose chopping duty ratios for the voltage step-down stage and on the voltage step-up stage. The regulating unit (15) comprises means for compensating for the harmonics generated by the voltage step-down stage in the filtering stage, acting on the voltage step-down stage.
摘要:
System for charging the battery (6) of an automotive vehicle furnished with at least one electric or hybrid traction chain comprising an electric machine (2) connected mechanically to the driving wheels and connected electrically on the one hand to an electrical supply network (1) and on the other hand to the battery (6) by way of an inverter (5). The charging system comprises, when the vehicle is on charge, the electric machine (2) and the inverter (5) of the traction chain as well as a control system able to control the inverter (5) so that the energy is tapped off from the electrical supply network (1) through the electric machine (2) and to the battery (6), while controlling the electric machine (2) in such a way that it does not produce any wheel torque.
摘要:
The invention relates to a method for actively discharging an input capacitor of a charger of an electric or hybrid vehicle connected to a polyphase power supply network, the charger including, in cascade, the input capacitor, a diode voltage rectifier, a voltage boost converter (ELE), a drive battery being connected at the output of the voltage boost converter (ELE) by means of relays, the method including, when the relays are closed, steps of: detecting (E1) an interruption in the network power supply, commanding (E3) the switches of the voltage boost converter (ELE) to open, the switches being held open until blocking by the diodes of the rectifier, - switching (E4) the switches of the voltage boost converter (ELE) until the voltage level of the capacitor is lower than a predetermined voltage threshold.
摘要:
Procédé de gestion automatisée de la vitesse longitudinale d'un véhicule ego (10), caractérisé en ce qu'il comprend : - une première étape (E1) de détection d'au moins deux véhicules cibles (401, 402, 411, 421) dans un trafic environnant le véhicule ego, - une deuxième étape (E2) de calcul d'au moins deux vitesses longitudinales de référence, une première vitesse longitudinale de référence étant calculée en fonction d'un premier véhicule cible (401, 402, 411, 421), une deuxième vitesse longitudinale de référence étant calculée en fonction d'un deuxième véhicule cible (401, 402, 411, 421), - une troisième étape (E3) de calcul d'une consigne de vitesse longitudinale du véhicule ego, la consigne de vitesse longitudinale étant égale au minimum entre les au moins deux vitesses longitudinales de référence.