Verfahren und Vorrichtung zur Steuerung der Schmiermittelflussrate

Details

Veröffentlichungs-Nr.

EP4772768

Anmeldetag

23. September 2024

Veröffentlichung

24. April 2025

Rechtsraum

EP

IPC

F16H57/04, F16N29/02

Abstract

A lubricant flow rate control method and device. A vehicle comprises an electric drive system; the electric drive system comprises a planetary row and an oil pump; in the planetary row, planetary gears (3a) are supported on pin shafts (3c) of a planetary carrier (3) by means of a needle bearing (3b). The control method comprises: according to the current planetary carrier torque, the current planetary carrier rotating speed, the current sun gear torque and the current sun gear rotating speed, determining the current load value of the needle bearing (3b) of the planetary row; and, according to the current load value and a preset relation curve, determining a target lubricant flow rate of the needle bearing (3b), the preset relation curve being used for representing the corresponding relation between the load value of the needle bearing (3b) and the lubricant flow rate, or the corresponding relation between the load value of the needle bearing (3b) and the rotating speed of the oil pump.

Anmelder

Firma

Dongfeng Motor Group Co., Ltd.

Land

🇨🇳 China

Fachgebiete