Abstract: A method for controlling a part movable with a coil. In this case, a current flowing through the coil and/or a voltage applied to the coil is/are scanned in order to generate a coil signal. In a further step, at least one movement parameter representing an oscillatory movement of the part is ascertained by using the coil signal. Finally, at least one signal parameter of a dither signal is optionally changed to generate the oscillatory movement by comparing the movement parameter to the at least one setpoint value to adapt the oscillatory movement to the setpoint value.

Abstract: A method for ascertaining a state variable of a magnetic actuator at a particular point in time. The method includes a step of reading in and a step of calculating. In the step of reading in, a first sensor value and at least one second sensor value are read in, the first sensor value representing a physical variable identical to that of the second sensor value, and the first sensor value having been detected after the second sensor value. In the step of calculating, the state variable is calculated using the first sensor value and the second sensor value as input variables to at least one approximation function.

Abstract: An electromagnetic actuating device includes a pole sleeve that extends along an axial direction and an armature situated radially inside the pole sleeve. The pole sleeve has a first axial end and a second axial end. The armature is guided inside the pole sleeve. The pole sleeve has, in a region situated between the axial ends, recesses whose contours each change along the axial direction.

Abstract: A method for controlling a part movable with a coil. In this case, a current flowing through the coil and/or a voltage applied to the coil is/are scanned in order to generate a coil signal. In a further step, at least one movement parameter representing an oscillatory movement of the part is ascertained by using the coil signal. Finally, at least one signal parameter of a dither signal is optionally changed to generate the oscillatory movement by comparing the movement parameter to the at least one setpoint value to adapt the oscillatory movement to the setpoint value.

Abstract: A method for ascertaining a state variable of a magnetic actuator at a particular point in time. The method includes a step of reading in and a step of calculating. In the step of reading in, a first sensor value and at least one second sensor value are read in, the first sensor value representing a physical variable identical to that of the second sensor value, and the first sensor value having been detected after the second sensor value. In the step of calculating, the state variable is calculated using the first sensor value and the second sensor value as input variables to at least one approximation function.

Abstract: A method for manufacturing a pole tube having two magnetic pole tube components and having one nonmagnetic ring, which is situated axially between the pole tube components, for an electromagnet, in particular for a solenoid valve of an automatic transmission in a motor vehicle, including the following: concentric configuration and/or centering of the pole tube components and of the ring, in particular on a centering pin; form-fitting connection, in particular by extrusion coating and/or casting an exterior lateral surface of the pole tube components and of the ring.

Abstract: A method for manufacturing a pole tube having two magnetic pole tube components and having one nonmagnetic ring, which is situated axially between the pole tube components, for an electromagnet, in particular for a solenoid valve of an automatic transmission in a motor vehicle, including the following: concentric configuration and/or centering of the pole tube components and of the ring, in particular on a centering pin; form-fitting connection, in particular by extrusion coating and/or casting an exterior lateral surface of the pole tube components and of the ring.

Abstract: A mechanical system has a component, which is movable under friction. An oscillating micromotion (dither) is impressed upon the component, which, if necessary, is added to a non-oscillating base motion of the component. It is provided that the micromotion (without the base motion that is additional, if necessary) is faster within a period of the oscillation in the one direction and is of shorter duration than in the opposite direction (asymmetrical dither).

Abstract: A method for manufacturing a pole tube having two magnetic pole tube components and having one nonmagnetic ring, which is situated axially between the pole tube components, for an electromagnet, in particular for a solenoid valve of an automatic transmission in a motor vehicle, including the following: concentric configuration and/or centering of the pole tube components and of the ring, in particular on a centering pin; form-fitting connection, in particular by extrusion coating and/or casting an exterior lateral surface of the pole tube components and of the ring.

Abstract: A device is described for controlling a hydraulic accumulator of a hydraulic system, for example a vehicle transmission, having a valve device which may connect and disconnect an accumulator-side port of the device to and from a system-side port, the valve device including at least one first check valve which is situated hydraulically between the accumulator-side port and the system-side port, and which is blocking in the direction of the system-side port, the valve device also including an electrically actuated control valve which is situated between a control port of the first check valve and the accumulator-side port in such a way that the control valve may hydraulically unblock the first check valve, using the pressure prevailing at the accumulator-side port.

Abstract: In a method for operating a fluid valve for controlling or regulating a fluid, having at least one movable valve component is displaceable with the aid of at least one electrical actuating signal which contains at least one first actuating signal portion which causes an oscillating valve motion of the valve component. Pressure oscillations generated in the fluid due to the oscillating valve motion are detected, and are used for regulation of the oscillating valve motion caused by the first actuating signal portion.

Abstract: A pressure-regulating valve includes a magnetic actuator and a housing. Accommodated in the housing is an armature, which is movable in a pole tube. The pole tube is encompassed by a magnetic coil. The armature is supported in the pole tube in a film structure.

Abstract: A device is described for controlling a hydraulic accumulator of a hydraulic system, for example a vehicle transmission, having a valve device which may connect and disconnect an accumulator-side port of the device to and from a system-side port, the valve device including at least one first check valve which is situated hydraulically between the accumulator-side port and the system-side port, and which is blocking in the direction of the system-side port, the valve device also including an electrically actuated control valve which is situated between a control port of the first check valve and the accumulator-side port in such a way that the control valve may hydraulically unblock the first check valve, using the pressure prevailing at the accumulator-side port.

Abstract: A device is described for controlling a hydraulic accumulator of a hydraulic system, for example a vehicle transmission, having a valve device which may connect and disconnect an accumulator-side port of the device to and from a system-side port, the valve device including at least one valve main stage, which is situated hydraulically between the accumulator-side port and the system-side port and to which a pressure prevailing hydraulically at the accumulator-side port is preferably applied by an application means in the opening direction, the valve device also including an electrically actuated control valve which may connect the system-side port to a control port of the valve main stage which acts in the closing direction of the valve main stage and to the accumulator-side port, at least one first throttle being situated between the control valve and the accumulator-side port.

Abstract: A pressure regulating valve (10) includes a magnet coil (16) received in a coil body (18), an armature (26) movable relative to a pole piece (20) for actuating a valve closing member (36), and a magnetic circuit (48) containing a magnet yoke (50). The magnetic circuit (48) has a maximum of three components (20, 66; 26, 50) that together form magnetic transitions (72, 74) oriented in the axial direction.

Abstract: A pressure control valve for an automatic transmission in a motor vehicle includes a housing, a valve slide which is guided in the housing and which has multiple adjacent sections, a first section having a first diameter, a second section adjacent thereto having a second diameter smaller than the first diameter, and a third section having the first diameter adjacent to the second section. An inflow pressure opening is assigned to the first section, a control pressure opening is assigned to the second section and a return flow opening is assigned to the third section. An electromagnetic actuating device acts upon the valve slide via a piston, which is guided pressure-tight in the housing.

Abstract: An electromagnetic pressure regulating valve device for regulating a hydraulic pressure including at least one pressure regulating valve which includes a solenoid part having at least one bobbin holding an electric coil, a coil core and a movably guided armature; a valve part having at least one supply connection, one return connection, one load connection and one actuating element operated by the armature and cooperating with a valve seat; and an electronic part having at least one pressure sensor for measuring the hydraulic pressure present at the load connection. At least the pressure sensor is situated on an end of the solenoid part facing the valve part upstream from the electronic part. Positioning the pressure sensor close to the valve part may substantially reduce the filter effect of the transmission link, and the hydraulic pressure to be measured is therefore transmittable free of errors up to a much higher cutoff frequency.

Abstract: In a method for operating a fluid valve for controlling or regulating a fluid, having at least one movable valve component is displaceable with the aid of at least one electrical actuating signal which contains at least one first actuating signal portion which causes an oscillating valve motion of the valve component. Pressure oscillations generated in the fluid due to the oscillating valve motion are detected, and are used for regulation of the oscillating valve motion caused by the first actuating signal portion.

Abstract: A mechanical system has a component, which is movable under friction. An oscillating micromotion (dither) is impressed upon the component, which, if necessary, is added to a non-oscillating base motion of the component. It is provided that the micromotion (without the base motion that is additional, if necessary) is faster within a period of the oscillation in the one direction and is of shorter duration than in the opposite direction (asymmetrical dither).

Abstract: A pressure-regulating valve includes a magnetic actuator and a housing. Accommodated in the housing is an armature, which is movable in a pole tube. The pole tube is encompassed by a magnetic coil. The armature is supported in the pole tube in a film structure.