Hydraulic control device for an automatic transmission
AssigneeZF Friedrichshafen AG
InventorsStefan Beck, Christian Sibla, Christoph Margraf, Peter Ziemer
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AssigneeZF Friedrichshafen AG
InventorsStefan Beck, Christian Sibla, Christoph Margraf, Peter Ziemer
Estimating the term…
A hydraulic control device for controlling multiple torque-transferring shift elements of an automatic transmission, where each of the shift elements features at least one hydraulic actuator, which includes one actuating pressure chamber, at least one stop valve and at least one hydraulic shift device with multiple pressure adjusting devices connected to the different shift elements. Thereby, the stop valve is configured and arranged in such a manner that the actuators of at least two shift elements are hydraulically connectable to the pressure adjusting devices through a common stop valve. In a first shifting position, all actuating pressure chambers of the at least two shift elements are tightly sealed by the stop valve. In a second shifting position, all actuating pressure chambers of the at least two shift elements are connected through the stop valve to the pressure adjusting device allocated to the respective shift element.
A hydraulic control device for controlling a plurality of multiple shift elements in an automatic transmission, each shift element of the plurality of shift elements comprising at least one hydraulic actuator having an actuating pressure chamber, the hydraulic control device comprising
An automatic transmission comprising:
Dependencies are inferred from the claim text.