Device for energy transmission for mechanical control, in particular for the control of braking pressure in a brake
AssigneeThomson-CSF
InventorChristian Menard
Life of this patent
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Abstract
The device according to the invention includes at least one rotational actuator fitted with a return spring and a connecting rod connected to the rotational actuator to transmit a linear movement to a mechanical part. The rotational actuator is moved by a rotational electromagnet whose angular position is controlled by a pulsed, periodic current. The device also includes apparatus for removal of the magnetizing energy stored in the electromagnet.
Claims17
Device for energy transmission for mechanical control including at least one rotational actuator fitted with a return spring and means connected to the rotational actuator to transmit a linear movement to a mechanical part, wherein the rotational actuator is moved by a rotational electromagnet to an angular position determined by the average value of a pulsed current with the rotational electromagnet maintaining the rotational actuator at the angular position during application of the pulsed current, and wherein said device also includes means for removal of magnetizing energy stored in the said rotational electromagnet.
A control device comprising:
- a rotational actuator, said rotational actuator including a rotational electromagnet for positioning said rotational actuator such that said rotational actuator is angularly displaced from an initial position to a desired position during application of a current, and wherein said rotational electromagnet maintains said rotational actuator at said desired position during application of the current;
- a first circuit connected to said rotational actuator for supplying the current to said rotational electromagnet;
- and
- a separate circuit for removing magnetizing energy from said rotational electromagnet.
A device for providing a mechanical control comprising:
- a rotational actuator, said rotational actuator including a rotational electromagnetic for positioning said rotational actuator such that said rotational actuator is angularly displaced from an initial position and maintained displaced from said initial position during application of a current;
- a first circuit connected to said rotational actuator for supplying a current to said rotational electromagnet to move said rotational actuator to a desired position and maintain said rotational actuator at the desired position during application of said current;
- and
- a second separate circuit for removing magnetizing energy from said rotational electromagnet, said second separate circuit connected to said rotational electromagnet such that upon interruption of a current supplied by said first circuit, magnetizing energy is removed by said second separate circuit, wherein a response time of the device is reduced by removal of said magnetizing energy by said second separate circuit.
Dependencies are inferred from the claim text.