Leistungsbatteriesystem und Verfahren zur Schalterhaftung dafür

Details

Veröffentlichungs-Nr.

EP4810970

Anmeldetag

30. Januar 2026

Veröffentlichung

23. September 2026

Rechtsraum

EP

IPC

G01R31/327

Abstract

A power battery system comprising: a power battery, a positive bus bar, and a negative bus bar, with a main positive switch provided in the positive bus bar and a main negative switch provided in the negative bus bar; a DC bus capacitor connected between a load side of the positive bus bar and a load side of the negative bus bar; a pre-charge line connected to the positive bus bar on the battery side and the load side of the main positive switch, the pre-charge line being provided with an adhesion detection switch, a pre-charge resistor, and a pre-charge switch; and an adhesion detection line connected between the pre-charge circuit and the negative bus bar, the adhesion detection circuit including at least one voltage divider resistor. Based on various switch states of each switch, the battery voltage on both sides of the power battery, the capacitor voltage on both sides of the DC bus capacitor, and the sampling voltage on both sides of the adhesion detection line are obtained. Based on the on/off states of each switch in various combinations of switch states, as well as the values of the capacitor voltage and the sampling voltage, the adhesion of the adhesion detection switch, the main positive switch, the main negative switch, and the pre-charge switch is determined.

Anmelder

Firma

Robert Bosch GmbH

Land

🇩🇪 Deutschland

Fachgebiete