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Method and device for controlling a part movable by means of a coil, and solenoid valve

A coil and motion technology, applied in the direction of valve operation/release device, valve device, engine components, etc., can solve the problems of hysteresis performance, power degradation, large energy consumption, leakage, etc., and achieve small calculation overhead, high precision and reliability sexual effect

Active Publication Date: 2020-02-04
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the flutter movement is too large, this can lead to undesirably large leaks or large energy consumption
Conversely, if said dithering movement is too small or the armature even stops, the hysteresis performance and the dynamics of the valve will be significantly worse

Method used

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  • Method and device for controlling a part movable by means of a coil, and solenoid valve
  • Method and device for controlling a part movable by means of a coil, and solenoid valve
  • Method and device for controlling a part movable by means of a coil, and solenoid valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] figure 1 A schematic diagram of a solenoid valve 100 according to an exemplary embodiment is shown. The solenoid valve 100 includes a component 102 for opening or closing the solenoid valve 100 . Part 102 —also referred to as armature or spool—can be moved electromagnetically by means of coil 104 . To this end, the coil 104 is connected to a battery 106 . The component 102 is designed to be brought into a vibration movement by means of the coil 104 , by means of which the static friction of the component 102 can be reduced. In order to actuate the component 102, the solenoid valve 100 includes a device 108 with a sampling unit 110, which is designed to sample a coil raw signal 111 with a predetermined sampling rate—the coil raw signal represents, according to the exemplary embodiment, The current I(t) flowing through the coil 104 and / or also represents the voltage U(t) applied to the coil 104 and is transmitted as the coil signal 112 via the optional averaging unit 1...

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PUM

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Abstract

The invention relates to a method for controlling a part (102) movable by means of a coil (104). Here, a current flowing through the coil (104) and / or a voltage applied to the coil (104) are / is tappedin order to generate a coil signal (112). In a further step at least one movement parameter (116) representing a shaking movement of the part (102) is ascertained using the coil signal (112). Lastly,at least one signal parameter of a dither signal (122) for generating the shaking movement is optionally altered by comparing the movement parameter (116) to at least one target value (120), in orderto adapt the shaking movement to the target value (120).

Description

technical field [0001] The invention relates to a device or a method of the type according to the independent claims. A computer program is also the subject of the invention. Background technique [0002] Electromagnetically actuated valves without displacement sensors are known, the spool or armature of which can perform a small periodic vibrating movement - also called dithering movement - in order to reduce the vibration caused by static friction or vibration during operation. Interference effects caused by hysteresis. If the dithering movement is too large, this can lead to undesirably large leaks or high energy consumption. Conversely, if the dithering movement is too small or the armature is even stationary, the hysteresis performance and the dynamics of the valve will be significantly worse. Typical examples for such valves are hydraulic pressure regulating valves or simple hydraulic continuous valves without displacement measurement. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F7/18
CPCH01F7/1844F16K37/0041F16K31/0675H01F2007/1888
Inventor T.贝格尔D.赛勒-图尔M.希尔施C.奥特T.毛克
Owner ROBERT BOSCH GMBH