Method for controlling an hydraulically actuated shifting element of a vehicle transmission
AssigneeZF Friedrichshafen AG
InventorsFlorian Mayer, Frank Deprez
Life of this patent
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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.
Claims15
A method for controlling a hydraulically actuated shift element of a vehicle transmission (G) having a pressure chamber (1) that is fillable with hydraulic fluid by an electronically controlled hydraulic system in order to actuate the shift element, the method comprising:
- determining a fill level of a pressure compensating cavity (2) associated with the pressure chamber (1);
- and
- controlling pressurizing of the pressure chamber (1) with the hydraulic fluid based at least in part on the determined fill level of the pressure compensating cavity (2).
Dependencies are inferred from the claim text.