摘要:
L'invention concerne un procédé de charge d'une unité de stockage d'énergie électrique (120), notamment embarquée dans un véhicule, à partir d'une borne de recharge continue (110) en utilisant un convertisseur de tension continu/continu (100) pour adapter la tension entre ladite borne de recharge continue (110) et ladite unité de stockage d'énergie électrique (120), ledit convertisseur de tension continu/continu (100) comprenant au moins deux cellules entrelacées (101, 102) fonctionnant en décalage de phase, chaque cellule (101, 102) ayant des interrupteurs (HS1, LS1, HS2, LS2) respectifs; ledit procédé comportant une commande par modulation de largeur d'impulsion des interrupteurs (HS1, LS1, HS2, LS2) dudit convertisseur de tension continu/continu (100) avec un rapport cyclique pour adapter la tension entre ladite borne de recharge continue (110) et l'unité de stockage d'énergie électrique (120), ledit rapport cyclique ayant une valeur donnée αv sensiblement constante sur plusieurs cycles d'entrelacement.
摘要:
La présente invention concerne un dispositif d'alimentation (1) d'un réseau électrique (13) d'un véhicule automobile comprenant une première (3) et une deuxième (7) batterie et un convertisseur de tension continue (5) comprenant une première borne (9) reliée à la première batterie (3) et une deuxième borne (11) reliée à la deuxième batterie (7), la deuxième borne (11) étant également destinée à être connectée au réseau électrique, dans lequel le convertisseur de tension continue (5) est configuré pour réaliser une source de courant disposée en série entre la première (3) et la deuxième (7) batterie de façon à contrôler le courant échangé avec la première batterie.
摘要:
An electrical source control apparatus (100) has a selecting device for selecting one switching element from at least two switching elements each of which constitutes predetermined arm element whose switching state should be changed to perform the electrical power conversion, when the electrical power converter (33) performs the electrical power conversion with either one of the first and the second electricity storage apparatuses (31, 32); and a controlling device for controlling the electrical power converter to change a switching state of the selected one switching element while keeping a switching state of another one switching element in an ON state, the selecting device newly selects the one switching element to reduce a difference between temperatures of the at least two switching elements each of which constitutes predetermined arm element.
摘要:
A power supply apparatus of a vehicle includes a battery (150), a voltage step-up converter (200) stepping up a voltage of the battery (150) and supplying the stepped-up voltage to an electrical load of the vehicle, and a control device (500) controlling the voltage step-up converter (200) in a continuous voltage step-up mode in which the voltage step-up converter (200) is continuously operated and an intermittent voltage step-up mode in which the voltage step-up converter (200) is intermittently operated. When the temperature of the battery (150) is equal to or lower than a predetermined value, the control device (500) inhibits the voltage step-up converter (200) from operating in the intermittent voltage step-up mode.
摘要:
The invention relates to a method for managing the energy of a hybrid vehicle comprising a heat engine (1), one or more electric traction motors (2), at least one high-voltage traction battery (4), a low-voltage on-board battery (6) for the vehicle accessories (8), a current inverter (3) capable of transforming the DC currents supplied by the traction battery (2) and by the on-board battery (6) into AC currents for the electric motor (2), and a current transformer (7) capable of converting the high-voltage current of the traction battery (4) into low-voltage current of the on-board battery (6), characterised in that the transformer (7) has reversible operation that makes it possible to use the stock of energy available in the low-voltage battery (6) such as not to draw energy from the high-voltage battery (4) when the latter has a relatively low state of charge (SOC).
摘要:
A 12 volt automotive battery system includes a first battery directly coupled to an electrical system, in which the first battery includes a first battery chemistry, and a second battery coupled in parallel with the first battery and directly coupled to the electrical system, in which the second battery includes a second battery chemistry with a higher coulombic efficiency than the first battery chemistry. The first battery and the second battery are non-voltage matched such that a voltage range of the second battery is higher than a voltage range of the first battery. The first battery steers power generated during regenerative braking to the second battery using internal resistance of the first battery to enable the second battery to capture a majority of the power generated during regenerative braking, and the second battery provides power to the electrical system due to the higher voltage range of the second battery when the second battery has a positive state of charge.