Elektrische Arbeitsmaschine und Verfahren zur Aktivierung einer Elektrischen Arbeitsmaschine

Details

Veröffentlichungs-Nr.

EP4481986

Aktenzeichen

EP24179142

Anmeldetag

30. Mai 2024

Veröffentlichung

7. Mai 2025

Rechtsraum

EP

IPC

H02J7/00H01H47/00B60L58/18G01R31/327

Abstract

One or more example embodiments of the present invention include an electric device (20), battery packs (22), and a controller. The electric circuitry (21) includes external relays (211) corresponding to the respective battery packs (22). The controller is configured or programmed to perform an external relay test process to examine whether contacts of a corresponding external relay (211) which corresponds to a second battery pack (22) to be connected to second or later are locked, and, in the external relay test process, if a voltage between the positive and negative external terminals (223a, 223b) of the battery pack (22) is equal to or more than a threshold, determine that the contacts of the external relay (211) are locked, and, if the voltage between the positive and negative external terminals (223a, 223b) of the battery pack (22) is less than the threshold, determine that the contacts of the external relay (211) are normal.

Anmelder

Firma

KUBOTA CORPORATION

Land

🇯🇵 Japan

Fachgebiete