Patent · US Active

Method for controlling an hydraulically actuated shifting element of a vehicle transmission

US10539230B2 · kind B2 · utility

0Cited by

9References

15Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Florian Mayer · Freiberg am Neckar, DE
Frank Deprez · Freising, DE

Key dates

Filing date	Oct 4, 2016
Grant date	Jan 21, 2020
Priority date	—
Expiry date	Dec 22, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2061/062
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A method for controlling a hydraulically actuated shift element of a vehicle transmission (G) includes determining a fill level of a pressure compensating cavity (2) associated with a pressure chamber (1) and controlling pressurizing of the pressure chamber (1) with hydraulic fluid based at least in part on the determined fill level of the pressure compensating cavity (2). The pressure chamber (1) is fillable with the hydraulic fluid by an electronically controlled hydraulic system in order to actuate the shift element.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.