High-speed controlling device

A method of using a high-speed actuating device suitable for switching a switching flap in an internal combustion engine, comprising the steps of:

• a) providing a high-speed actuating device having first and second switchable electromagnets, the first electromagnet having a first yoke provided with a first stop surface and the second electromagnet having a second yoke provided with a second stop surface;
• b) arranging between the switchable electromagnets an armature drive-coupled to a switching flap having first and second switch positions situated upstream from at least one intake valve in an intake channel leading to at least one combustion chamber of the internal combustion engine, the armature being in contact with the first electromagnet in the first switch position of the switching flap against the first stop surface and being in contact with the second electromagnet in the second switch position of the switching flap device against the second stop surface, the first yoke being interrupted near the first stop surface by a first gap bridged by the armature when the armature is in contact with the first stop surface and the second yoke being interrupted near the second stop surface by a second gap bridged by the armature when the armature is in contact with the second stop surface, each yoke having a cross section tapering to the respective gap on a respective end section terminating at the gap;
• c) connecting the armature to a shaft mounted to rotate about a longitudinal axis of the shaft, and mounting the switching flap so as to be axially offset in relation to the armature;
• and
• d) using the high-speed actuating device to switch the switching flap.

A high-speed actuating device suitable for actuating a switching flap between two switch positions with very short switching times, whereby the switching flap is situated in a gas-carrying line and closes off the line cross section in the first switch position and opens the line cross section in the second switch position, wherein

• a) the high-speed actuating device has two switchable electromagnets between which in arranged an armature which is drive-coupled to the switching flap, whereby the armature is in contact with the one electromagnet in the first switch position of the switching flap and is in contact with the other electromagnet in the second switch position of the switching flap device,
• b) the armature is fixedly connected to a shaft which is mounted to rotate about its longitudinal axis, and the switching flap is also fixedly mounted but is axially offset in relation to the armature,
• c) each electromagnet has a yoke on which is provided a stop surface for the armature against which the armature comes to rest in one of the switch positions, whereby the yoke is interrupted in the area of the stop surface by a gap which is bridged by the armature when the armature is in contact with the stop surface, and
• d) with respect to the shaft, the radial extent of the armature is shorter than one side of the yoke on which the stop surface is designed.

A high-speed actuating device suitable for actuating a switching flap between two switch positions with very short switching times, whereby the switching flap is situated in a gas-carrying line and closes off the line cross section in the first switch position and opens the line cross section in the second switch position, wherein

• a) the high-speed actuating device has two switchable electromagnets between which is arranged an armature which is drive-coupled to the switching flap, whereby the armature is in contact with the one electromagnet in the first switch position of the switching flap and is in contact with the other electromagnet in the second switch position of the switching flap device,
• b) the armature is fixedly connected to a shaft which is mounted to rotate about its longitudinal axis, and the switching flap is also fixedly mounted but is axially offset in relation to the armature,
• c) each electromagnet has a yoke on which is provided a stop surface for the armature against which the armature comes to rest in one of the switch positions, whereby the yoke is interrupted in the area of the stop surface by a gap which is bridged by the armature when the armature is in contact with the stop surface, and
• d) the cross section of the armature in the direction of flux of the magnetic field is smaller than the cross section of the yoke outside of the stop surface.

A high-speed actuating device suitable for actuating a switching flap between two switch positions with very short switching times, whereby the switching flap is situated in a gas-carrying line and closes off the line cross section in the first switch position and opens the line cross section in the second switch position, wherein

• a) the high-speed actuating device has two switchable electromagnets between which is arranged an armature which is drive-coupled to the switching flap, whereby the armature is in contact with the one electromagnet in the first switch position of the switching flap and is in contact with the other electromagnet in the second switch position of the switching flap device,
• b) the armature is fixedly connected to a shaft which is mounted to rotate about its longitudinal axis, and the switching flap is also fixedly mounted but is axially offset in relation to the armature, and
• c) a switching arrangement which is provided for switching the electromagnets is designed as an H-bridge, has an on/off transistor and a chopper transistor which is controlled by a chopper current regulator as a function of a comparison between a predetermined or predeterminable setpoint current and an actual current, which can be determined with the help of a measurement element, whereby the measurement element is connected to the emitter of the on/off transistor on the one hand and to ground on the other hand.