公开(公告)号：US20240246497A1

公开(公告)日：2024-07-25

申请号：US18099495

申请日：2023-01-20

Applicant: Lear Corporation

Inventor： Julia Gine Elies ,  Youssef Ghabbour ,  Ivan Casado Garcia ,  Marc Ferrer Duran ,  Roser Rue Olive ,  Cesar Ruano Alvarez ,  Luis Roda Cornejo

IPC: B60R16/02 ,  H02M3/335

CPC classification number: B60R16/02 ,  H02M3/335

Abstract: A system includes a power source, a capacitor, a precharge circuit, and/or a controller, in some configurations. The capacitor may be electrically connected to the power source. The precharge circuit may be electrically connected between the power source and the capacitor. The precharge circuit may include a switch connected in parallel with a resistor. The controller may be electrically connected to the power source and the precharge circuit. The controller may conduct a first precharging of the capacitor to a first voltage via the resistor. The controller may conduct a second precharging of the capacitor from the first voltage to a second voltage via the switch.

公开(公告)号：US12230992B2

公开(公告)日：2025-02-18

申请号：US17509245

申请日：2021-10-25

Applicant: Lear Corporation

Inventor： Jordi Tost Bartolome ,  Cesar Ruano Alvarez ,  Josep Ruiz Rodon ,  Andre Cartaxo ,  Adria Marcos Pastor

IPC: H02J7/00 ,  B60L53/24 ,  H02J7/02 ,  H02J7/04

Abstract: An on-board battery charger (OBC) includes first and second rails which generate first and second detection signals based on voltage events, such as zero-crossing or peak voltage events, of input voltages supplied to the rail circuits. The OBC includes a relay switchable between (i) an opened state in which the relay disconnects the rails whereby the rails can respectively receive first and second phase input voltages from a multi-phase mains supply and (ii) a closed state in which the relay connects the rails whereby the rails can both receive a same input voltage from a single-phase mains supply. A controller determines from a comparison of the detection signals at the same time whether input voltages received by the rails from a mains supply are out-of-phase or in-phase to determine therefrom whether the mains supply is multi-phase or single-phase and/or whether the relay is properly or improperly opened or closed.