Lade- und Entladesteuerungsverfahren und -Vorrichtung sowie Vorrichtung, Speichermedium und Programmprodukt

Details

Veröffentlichungs-Nr.

EP4718585

Anmeldetag

30. Oktober 2023

Veröffentlichung

5. Dezember 2024

Rechtsraum

EP

Abstract

Disclosed in the present application are a charge and discharge control method and apparatus, and a device, a storage medium and a program product. The method comprises: when a battery heating condition is satisfied, turning on a connecting circuit between a neutral point of a first electric motor and a neutral point of a second electric motor, wherein a first electric motor controller connected to the first electric motor and a second electric motor controller connected to the second electric motor are both connected between a positive electrode and a negative electrode of a battery; and controlling the turning-on/turning-off of bridge arms in the first electric motor controller and the second electric motor controller, and forming, in a circuit in which the battery is located, a charging loop and a discharging loop which are alternately switched. In the present application, the total inductance of windings in an access loop can increase, such that the electric quantity storage capability is improved, which is conducive to the improvement of the battery heating efficiency. A freewheel loop is added following a discharge loop, such that the peak current is reduced, the electric motor noise is reduced, and the overcurrent damage of a device is reduced. In a solution where all windings of the same electric motor have the same current direction, rotor heating situations can be reduced.

Anmelder

Firma

Contemporary Amperex Technology Co., Limited

Land

🇨🇳 China