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Methods for operating valves

A solenoid valve and driver technology, applied in the valve operation/release device, valve device, valve details, etc., can solve the problems of noise increase, fluid column deceleration, etc., and achieve the effect of reducing closing noise

Active Publication Date: 2022-04-08
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the valve is closed, this results in a sudden deceleration of the accelerated fluid column, and a so-called "water shock" occurs from which the noise increases

Method used

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  • Methods for operating valves
  • Methods for operating valves

Examples

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Embodiment Construction

[0032] figure 1 A (ideal) current variation curve 4 having a subordinate (ideal) valve position change curve 5 is shown schematically in accordance with the prior art. According to according to figure 1 The schematic is plotted at the upper portion to the change curve of time 6 with respect to time 6, and the valve position 7 is plotted with the change curve of time 6. As can be seen in terms of the change curve of the valve position 7, the valve is completely closed at the height of the abscissa. For further describing figure 1 The current change curve 4 and the valve position variation curve 5, reference to the above embodiments of the prior art.

[0033] figure 2 The (ideal) current variation curve 4 having a (idealized) valve position change curve 5 produced in the method according to the invention is shown. Also according to according to figure 2 The schematic is plotted at the upper portion to the change curve of time 6 with respect to time 6, and the valve position 7 is p...

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PUM

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Abstract

The invention relates to a method for actuating a valve with a solenoid valve drive through which an electric current (1) is conducted to open, close and hold the valve in an open position or in a closed position, The method has at least the following steps: a) receiving an opening signal, b) in response to the received opening signal, varying the current (1) conducted by the valve driver in the pattern of a first current signal (2) to open The valve, c) receives a closing signal, and d) in response to the received closing signal, alters the current (1) directed by the valve driver in the pattern of a second current signal (3) to close the valve , wherein the second current signal (3) has at least two changes of the current (1) separated in time from each other.

Description

Technical field [0001] The present invention relates to a method for manipulating a valve having a solenoid valve driver, and current guides through a solenoid valve driver to open, closed valve, and hold the valve in an open position or closed position. In particular, the present invention can be used, for example, in, for example, current control of the feed valve of the ABS system, TCS system, ESP system, and / or IPB system. Here, the abbreviation ABS represents the anti-lock brake system, TCS represents the traction control system, and ESP represents the electronic stability program, and IPB represents a set of power brakes. Background technique [0002] The feed valve of the ABS system or ESP system is typically run in a so-called switching mode or in a so-called (pressure difference) adjustment mode. Here, the switching mode is characterized by a short-time full stroke and (pressure differential) adjustment mode is characterized by partial strokes related to volume flow. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/20
CPCF02D41/20F02D2041/2058B60T8/36B60T13/662H01F7/18H01F2007/1888H01F2007/1894F16K31/0675B60T13/68
Inventor M·希尔登
Owner ROBERT BOSCH GMBH
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