Verfahren zur Schätzung des Drehmoments in einem Stufenlosen Getriebe

Details

Veröffentlichungs-Nr.

EP3258140

Aktenzeichen

EP16174416

Anmeldetag

14. Juni 2016

Veröffentlichung

4. August 2021

Erteilung

4. August 2021

Rechtsraum

EP

IPC

F16H61/468F16H61/472F16H47/04F16H61/66

Abstract

A method is provided for estimating input torque and output torque in a continuously variable transmission having a variator. The method comprising the steps of determining (202) a transmission input and/or output speed, calculating (204) the speed of each of a plurality of transmission components by reflecting the transmission input and/or output speed through the transmission to each of the plurality of transmission components, and calculating (208) the speed rate of change of each of the plurality of transmission components. The inertia torque of each of the plurality of transmission components is calculated (210) based upon its respective speed rate of change and a predetermined component inertia value (209). The method further comprises the steps of determining (211) a motor torque of the variator, and calculating (212) a transmission input torque and transmission output torque by reflecting the motor torque of the variator through the transmission to the transmission input and output. The calculated transmission input and output torque values are adjusted (214) to account for the calculated inertia torque values of those of the plurality of transmission components which lie between the variator and the transmission input, and the variator and the transmission output, respectively.

Anmelder

Firma

Perkins Engines Company Limited

Land

🇬🇧 Großbritannien

Fachgebiete