Actuation device for actuating switching elements
AssigneeZF Friedrichshafen AG
InventorsMatthias Reisch, Ralf Dreibholz
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Abstract
An actuating device is provided for actuating at least one shifting element shiftable through a shifting device, whereas the shifting device features a pressure space with a supply for a pressurized medium, along with a shut-off valve. It is proposed that the shut-off valve is connected in an electrically controllable and torque-proof manner to at least one shifting element, and that the electrical energy for the actuation of the shut-off valve is able to be supplied without contact.
Claims18
An actuating device for actuating a shifting element, wherein the actuating device and shifting element are for mounting on a rotating shaft in a vehicle transmission, the actuating device comprising:
- a shifting device operably configured with the shifting element;
- the shifting device comprising a pressure space for receipt of a pressurized medium;
- an electrically controlled shut-off valve disposed so as to maintain pressure in the pressure space of the shifting device;
- and
- wherein the shut-off valve is configured with the shifting device so as to be supplied with electrical energy in a contact-free manner without electrical transmission lines to the shut-off valve.
A transmission of a motor vehicle, comprising:
- a rotating gear shaft;
- a functional mounting attached to the gear shaft;
- a plurality of shifting elements contained at least partially in the functional mounting;
- a respective actuating device for actuating each of the shifting elements, the actuating device further comprising:
- a shifting device operably configured with the shifting element;
- the shifting device comprising a pressure space for receipt of a pressurized medium;
- an electrically controlled shut-off valve disposed so as to maintain pressure in the pressure space of the shifting device;
- and
- wherein the shut-off valve is configured with the shifting device so as to be supplied with electrical energy in a contact-free manner without electrical transmission lines to the shut-off valve.
Dependencies are inferred from the claim text.