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Method for actuating a solenoid valve and corresponding fluid system

A technology of fluid system and solenoid valve, which is applied in the field of fluid system to achieve the effect of quick connection

Active Publication Date: 2020-12-18
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solenoid valves (especially those with gap filtering) may have temperature-dependent functional characteristics such that under unfavorable boundary conditions problems can arise with the switching characteristics

Method used

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  • Method for actuating a solenoid valve and corresponding fluid system
  • Method for actuating a solenoid valve and corresponding fluid system
  • Method for actuating a solenoid valve and corresponding fluid system

Examples

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Embodiment Construction

[0021] from figure 1 As can be seen in , the illustrated embodiment of the fluid system 1 according to the invention comprises at least one solenoid valve 10 and an evaluation and control unit 20 . The shown section of the fluid system 1 exemplarily shows a solenoid valve 10 with a magnetic structure assembly 12 and a valve cartridge 14 which in the illustrated embodiment is screwed into a fluid block 3 with a plurality of Fluid channel 5. Furthermore, in the illustrated embodiment, a temperature sensor 22 is screwed into the fluid block 3 , the fluid block measures the fluid temperature, and the evaluation and control unit 20 provides information on the fluid temperature as at least one temperature information. Furthermore, further not shown temperature sensors and / or vehicle systems can be used which provide further temperature information to the evaluation and control unit 20 , such as information on the ambient temperature and / or on the Information about the temperature ...

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Abstract

The invention relates to a method for operating a solenoid valve (10) in a fluid system (1), wherein, for a preset first period of time (T H ,T T ), applying a preset first amplitude (A SH , A ST ) of the on-current (I1 SH , I2 SH , I1 ST , I2 ST ), the on-current switches the solenoid valve from the idle state to the on-state, wherein, during the preset first period (T H ,T T ) after the end, apply a second amplitude with a preset value (A HH , A HT ) holding current (I1 HH , I2 HH , I1 HT , I2 HT ), the holding current keeps the solenoid valve (10) in the ON state, wherein the ON current (I1 SH , I2 SH , I1 ST , I2 ST ) of the first magnitude (A SH , A ST ) is greater than the holding current (I1 HH , I2 HH , I1 HT , I2 HT ) of the second magnitude (A HH , A HT ). The invention also relates to a corresponding fluid system (1). Here, the switch-on current (I1 SH , I2 SH , I1 ST , I2 ST ) of the first magnitude (A SH , A ST ) and holding current (I1 HH , I2 HH , I1 HT , I2 HT ) of the second magnitude (A HH , A HT ).

Description

technical field [0001] The invention relates to a method for actuating a solenoid valve. The invention also relates to a fluid system. Background technique [0002] Numerous methods are known from the prior art for actuating solenoid valves, in particular high-pressure switching valves that close when there is no current flow. Such solenoid valves serve as technical components for controlling the inlet and / or outlet of fluids, such as gases or liquids, or for controlling and / or regulating the direction of flow. Typically, a valve that is closed in the absence of current is briefly actuated with a high switching current until it opens. When the valve is open, the current can drop to a smaller holding current because a larger magnetic force is generated at the same current due to the smaller remaining air gap. Solenoid valves, in particular solenoid valves with gap filtering, can have temperature-dependent functional properties such that under unfavorable boundary condition...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/00
CPCB60T8/00B60T8/36H01F7/18B60T8/172B60T8/17616G05B15/02G05D7/0635H01F7/1805
Inventor B-M·米勒U·布兰肯霍恩V·埃德尔曼M·梅尔茨A·加特V·舒比肖
Owner ROBERT BOSCH GMBH
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