CN114857114A

CN114857114A - Gas-liquid switching device and method

Info

Publication number: CN114857114A
Application number: CN202210425533.9A
Authority: CN
Inventors: 顾一新
Original assignee: Dongguan Zhengyang Electronic Mechanical Co ltd
Current assignee: Dongguan Zhengyang Electronic Mechanical Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-08-05

Abstract

The invention discloses a gas-liquid switching device and a gas-liquid switching method. The gas-liquid switching device comprises a common rail module, a gas supply module, a liquid supply module and a control module; a common rail cavity is arranged in the common rail module and is provided with a liquid inlet circuit, a gas outlet circuit and a liquid outlet circuit; the liquid supply module is communicated with the liquid inlet path, and the gas supply module is communicated with the gas inlet path; the common rail module comprises a switch submodule, and the switch submodule comprises a liquid inlet control unit, a gas inlet control unit, a liquid outlet control unit and a gas outlet control unit; the control module is electrically connected with the liquid inlet control unit, the gas inlet control unit, the liquid outlet control unit, the gas outlet control unit, the liquid supply module and the gas supply module, and the control module is used for switching the common rail cavity between liquid storage and gas storage. Through adopting above-mentioned scheme, solve and if make clean system have two kinds of functions of water spray and blowing simultaneously, clean system's volume often is great, installation and use comparatively inconvenient problem.

Description

Gas-liquid switching device and method

Technical Field

The embodiment of the invention relates to the technical field of cleaning systems, in particular to a gas-liquid switching device and a gas-liquid switching method.

Background

At present, the application range of the cleaning system is very wide, and the cleaning system is required to be used for cleaning in many fields. For example, as the intelligent driving industry is increasingly developed and the driving safety demand is increasing day by day, in order to accurately sense the surrounding environment, a plurality of vehicle-mounted cameras and radars, such as a back-up rear-view camera and a panoramic parking camera, are arranged on the vehicle. The vehicle-mounted camera and the radar can assist a driver to sense the surrounding environment, the driving safety is improved, and in order to enable the assistance to be effective as much as possible, images provided by the camera need to be clear and free of shielding, so that the surface of the camera installed outside the vehicle is required to be clean. However, since such a camera is installed outside a vehicle and exposed in a severe environment, when an automobile travels on a muddy road or under rainy conditions, stains, dust, water drops, silt, oil stains and the like inevitably cover the surface of the camera to affect the information acquisition of the camera, so that the sensing capability is reduced, and the obstacle identification error is large or the obstacle cannot be identified, thereby causing a safety accident, and therefore, the vehicle needs to be cleaned. And traditional vehicle camera and radar do not be equipped with clean system, inconvenient camera and radar of cleaning of in-process are gone to the car, and after taking place the dirty back of perception region, adopt artifical manual cleaning mostly, the operation degree of difficulty is big, and the safety of traveling of vehicle is generally influenced to clean effect.

The existing cleaning system is generally provided with two types of water spraying and air blowing, and the two types of cleaning systems are generally independent, so if the cleaning system has two functions of water spraying and air blowing at the same time, the volume of the cleaning system is often larger, and the installation and the use are inconvenient.

Disclosure of Invention

The invention provides a gas-liquid switching device and a gas-liquid switching method, which are used for solving the problems that a cleaning system has two functions of water spraying and air blowing, the volume of the cleaning system is often larger, and the installation and the use are inconvenient.

According to an aspect of the present invention, there is provided a gas-liquid switching device including: the device comprises a common rail module, an air supply module, a liquid supply module and a control module;

a common rail cavity is arranged in the common rail module and is provided with a liquid inlet path, a gas outlet path and a liquid outlet path;

the liquid supply module is communicated with the liquid inlet path, and the gas supply module is communicated with the gas inlet path;

the common rail module comprises a switch submodule, the switch submodule comprises a liquid inlet control unit, an air inlet control unit, a liquid outlet control unit and an air outlet control unit, the liquid inlet control unit is used for controlling liquid inlet of the liquid inlet path, the air inlet control unit is used for controlling air inlet of the air inlet path, the liquid outlet control unit is used for controlling liquid outlet of the liquid outlet path, and the air outlet control unit is used for controlling air outlet of the air outlet path;

the control module with the feed liquor the control unit admits air the control unit go out liquid the control unit of giving vent to anger supply the liquid module with the equal electricity of air feed module is connected, control module is used for control the feed liquor the control unit that admits air the control unit go out liquid the control unit of giving vent to anger supply the liquid module with the air feed module is so that the common rail chamber switches between stock solution and gas storage.

In an optional embodiment of the invention, the liquid outlet control unit comprises a plurality of liquid outlet control sub-units;

the liquid outlet path comprises a plurality of liquid outlet branches, and the liquid outlet control subunits are used for controlling the liquid outlet of the liquid outlet branches in a one-to-one correspondence manner;

and/or the air outlet control unit comprises a plurality of air outlet control sub-units;

the air outlet path comprises a plurality of air outlet branches, and the air outlet control branch units are used for controlling air outlet of the air outlet branches in a one-to-one correspondence mode.

In an alternative embodiment of the present invention, the liquid supply module comprises a liquid storage tank and an electric pump, the liquid storage tank has a liquid supply port, and the liquid supply port and the liquid inlet are communicated through the electric pump;

the control module is electrically connected with the electric pump and used for controlling the working state of the electric pump;

the gas-liquid switching device also comprises a liquid level detection piece, and the liquid level detection piece is used for detecting the liquid level height of the liquid storage tank;

the control module is electrically connected with the liquid level detection piece and used for acquiring the liquid level height detected by the liquid level detection piece.

In an optional embodiment of the present invention, the gas-liquid switching apparatus further includes a first pressure detecting member for detecting a pressure inside the common rail chamber;

the common rail module further comprises a pressure relief unit, the common rail cavity is provided with a backflow liquid outlet, the liquid storage tank is provided with a backflow liquid inlet, a backflow pipeline is arranged between the backflow liquid outlet and the backflow liquid inlet and is communicated with the backflow liquid inlet through the backflow pipeline, and the pressure relief unit is used for controlling the opening and closing of the backflow pipeline;

the control module is electrically connected with the first pressure detection piece and the pressure relief unit and used for controlling the pressure relief unit based on the pressure inside the common rail cavity detected by the first pressure detection piece so that the pressure inside the common rail cavity meets a preset pressure rule.

In an optional embodiment of the present invention, the gas-liquid switching device further includes a heating module and a first temperature detecting element, and the first temperature detecting element is disposed in the liquid storage tank and is configured to detect a temperature of liquid in the liquid storage tank;

the heating module and the first temperature detection piece are electrically connected with the control module, and the control module is used for controlling the heating module to heat liquid in the liquid storage box based on the temperature of the liquid in the liquid storage box detected by the first temperature detection piece.

In an optional embodiment of the present invention, the air supply module includes an air pump and an air storage tank, the air storage tank has an air supply port, the air supply port is communicated with the air intake path, the air pump is connected to the air storage tank, and the air pump is configured to control the air storage tank to supply air to the air intake path;

the gas-liquid switching device also comprises a second pressure detection piece, and the second pressure detection piece is used for detecting the gas pressure of the gas storage tank;

the control module is electrically connected with the second pressure detection piece and the air pump and is used for acquiring the air pressure of the air storage tank and controlling the working state of the air pump based on the air pressure of the air storage tank;

and/or the control module comprises a CAN module and/or a wireless transmission module.

According to another aspect of the present invention, there is provided a cleaning system including the gas-liquid switching device and the nozzle according to any one of the embodiments of the present invention;

the gas outlet path and the liquid outlet path are communicated with the nozzle, and the nozzle is used for sequentially spraying liquid and gas in the common rail cavity for cleaning.

According to another aspect of the present invention, there is provided a gas-liquid switching method applied to the gas-liquid switching apparatus according to any one of the embodiments of the present invention, the method including:

acquiring a cleaning instruction;

controlling the switch submodule and the liquid supply module based on the cleaning instruction to enable the common rail cavity to start liquid supply through the liquid inlet circuit, and determining whether the common rail cavity is full of liquid in real time;

if the common rail cavity is full of liquid, the switch sub-module is controlled based on the cleaning instruction to enable the liquid in the common rail cavity to be sprayed out through a liquid outlet path, and whether the liquid outlet time length of the liquid sprayed out through the liquid outlet path in the common rail cavity reaches a preset first time length or not is determined in real time;

if the liquid outlet time reaches a preset first time, controlling the switch sub-module and the gas supply module to discharge liquid in the common rail cavity and start gas inlet through a gas inlet circuit, and determining whether the common rail cavity is full of gas in real time;

and if the common rail cavity is full of gas, controlling the switch sub-module to enable the gas in the common rail cavity to be sprayed out through the gas outlet path.

In an optional embodiment of the present invention, after the controlling the switch sub-module to eject the gas in the common rail cavity through the gas outlet, the method further includes:

determining whether the air outlet time length of the gas sprayed out from the air outlet passage in the common rail cavity reaches a preset second time length in real time;

if yes, controlling the switch submodule and the liquid supply module to enable the common rail cavity to start liquid supply through the liquid inlet circuit, and determining whether the common rail cavity is full of liquid in real time;

and if the common rail cavity is full of liquid, controlling the switch sub-module based on the cleaning instruction to enable the liquid in the common rail cavity to be sprayed out through a liquid outlet path.

In an alternative embodiment of the present invention, the control switch submodule and the liquid supply module enable the common rail cavity to start liquid supply through the liquid inlet path, and the control switch submodule and the liquid supply module include:

the pressure relief unit is controlled to be opened, and after the pressure relief unit is opened, the liquid inlet control unit and the electric pump are controlled to be opened so that the common rail cavity starts to feed liquid through the liquid inlet path;

and/or, control switch submodule and air feed module so that the liquid discharges and begins to admit air through the gas inlet circuit in the common rail intracavity, include:

and controlling the pressure relief unit to be opened, and controlling the air pump and the air inlet control unit to be opened after the pressure relief unit is opened so as to discharge the liquid in the common rail cavity and start to admit air through the air inlet circuit.

In an optional embodiment of the present invention, before the determining whether the common rail chamber is full of liquid in real time, the method further comprises:

acquiring pressure information of the common rail cavity detected by a first pressure detection piece in real time;

acquiring liquid level height information of a liquid storage tank detected by a liquid level detection piece in real time;

accordingly, the real-time determination of whether the common rail chamber is full of liquid includes:

determining whether the common rail cavity is full of liquid in real time based on the pressure information and the liquid level height information;

and/or, said determining in real time whether said common rail chamber is full of gas comprises:

determining whether the common rail chamber is full of gas in real time based on the pressure information and the liquid level height information.

In an optional embodiment of the present invention, the determining whether the common rail chamber is full of liquid in real time based on the pressure information and the liquid level height information includes:

controlling the rotating speed of an electric pump in real time based on the pressure information of the common rail cavity so as to keep the pressure of the common rail cavity at a preset pressure value;

determining the liquid level reduction amount of the water storage tank in a liquid inlet process based on the liquid level height information;

acquiring current information of the electric pump;

determining whether the current information of the electric pump is a preset current value and determining whether the liquid level reduction amount of the liquid storage tank is equal to the volume of the common rail cavity;

correspondingly, if the common rail cavity is full of liquid, the switch submodule is controlled based on the cleaning instruction to enable the liquid in the common rail cavity to be sprayed out through the liquid outlet path, and whether the liquid outlet time of the liquid in the common rail cavity sprayed out through the liquid outlet path reaches the preset first time length or not is determined in real time, including:

if the current information of the electric pump is a preset current value and the liquid level reduction of the liquid storage tank is equal to the volume of the common rail cavity, the switch sub-module is controlled based on the cleaning instruction to enable liquid in the common rail cavity to be sprayed out through a liquid outlet path, and whether the liquid outlet time of the liquid in the common rail cavity sprayed out through the liquid outlet path reaches a preset first time is determined in real time.

In an optional embodiment of the present invention, after the controlling the switch sub-module and the gas supply module to discharge the liquid in the common rail chamber and start gas intake through the gas intake path, the method further includes:

controlling the air pressure of the air storage tank in the air intake process to be kept at a preset air pressure value;

the determining whether the common rail chamber is full of gas in real time based on the pressure information and the liquid level height information includes:

determining a liquid level increase of the water storage tank based on the liquid level height information;

determining whether the pressure of the common rail cavity is a preset pressure value and determining whether the liquid level increase of the liquid storage tank is equal to the volume of the common rail cavity;

correspondingly, if the common rail cavity is full of gas, the switch sub-module is controlled to enable the gas in the common rail cavity to be sprayed out through the gas outlet path, and the method comprises the following steps:

if the pressure of the common rail cavity is a preset pressure value and the liquid level increment of the liquid storage tank is equal to the volume of the common rail cavity, the switch sub-module is controlled to enable the gas in the common rail cavity to be sprayed out through the gas outlet path.

In an alternative embodiment of the present invention, the controlling the air pressure of the air storage tank to be maintained at a preset air pressure value during the air intake process includes:

acquiring a real-time air pressure value of the air storage tank detected by a second pressure detection piece in real time;

and controlling the rotating speed of the air pump in real time based on the real-time air pressure value of the air storage tank so as to keep the real-time air pressure value of the air storage tank at a preset pressure value.

In an optional embodiment of the present invention, after the obtaining of the liquid level height information of the liquid storage tank detected by the liquid level detecting unit in real time, the method further includes:

determining whether the liquid level height information is less than a preset safety liquid level;

if yes, forbidding to execute the step of controlling the switch submodule and the liquid supply module based on the cleaning instruction to enable the common rail cavity to start liquid supply through the liquid inlet circuit;

and if not, executing a step of controlling the switch submodule and the liquid supply module to enable the common rail cavity to start liquid supply through the liquid inlet circuit based on the cleaning instruction.

In an optional embodiment of the present invention, before the controlling the switch submodule and the liquid supply module to start liquid supply to the common rail cavity through the liquid supply circuit based on the cleaning instruction, the method further includes:

and at least one of the control switch submodule, the air pump and the electric pump is self-checked, and fault information is output after the fault is self-checked.

In an alternative embodiment of the present invention, the controlling of at least one of the switch submodule, the air pump and the electric pump is self-checking, and outputting the fault information after self-checking the fault, including:

acquiring at least the same feedback pulse signals in the switch submodule, the air pump and the electric pump;

determining whether the pulse signal meets a preset fault rule;

if yes, determining the fault and outputting fault information.

controlling the switch submodule to be closed so as to seal the common rail cavity;

acquiring pressure information of a common rail cavity detected by a first pressure detection part at a plurality of moments;

determining whether the fluctuation of the pressure information of the common rail cavity detected by the first pressure detection member at a plurality of moments exceeds a preset fluctuation value;

if so, determining that an air leakage fault is generated and outputting fault information;

if not, the self-checking is normal.

receiving an external control instruction and/or outputting system information in real time through a CAN module and a wireless transmission module, wherein the external control instruction comprises a cleaning instruction;

the system information includes at least one of failure information, normal or abnormal information, and cleaning completion information.

acquiring perception information of a component to be cleaned, wherein the perception information comprises camera image information;

carrying out graying processing on the image information of the camera;

determining whether the average gray scale of the image information of the camera is larger than a preset gray scale value;

if yes, a cleaning instruction is generated.

acquiring the liquid temperature in the liquid storage tank detected by the first temperature detection piece;

determining whether the temperature of the liquid in the liquid storage tank is lower than a first preset temperature;

and if so, controlling the heating module to heat the liquid in the liquid storage tank.

According to the technical scheme of the embodiment of the invention, the common rail module, the gas supply module, the liquid supply module and the control module are arranged, the common rail module is internally provided with the common rail cavity, the common rail cavity is provided with the liquid inlet circuit, the gas outlet circuit and the liquid outlet circuit, and the switch sub-module is arranged to control the liquid inlet, the gas inlet, the liquid outlet and the gas outlet of the liquid inlet circuit, the gas outlet circuit and the liquid outlet circuit, so that the common rail cavity of the common rail module can be switched between liquid and gas, only one common rail cavity is needed to respectively contain gas or liquid, and when the gas-liquid switching device is applied to a cleaning system, the applied cleaning system has two functions of water spraying and air blowing, is small in size and is convenient to install and use. The problem of if make clean system have two kinds of functions of water spray and air blowing simultaneously, clean system's volume often is great, installation and use comparatively inconvenient is solved.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a block diagram of a gas-liquid switching device according to a first embodiment of the present invention;

fig. 2 is a schematic diagram illustrating a connection between a gas supply module and a liquid supply module and a common rail module according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of another gas-liquid switching device provided in the first embodiment of the present invention when connected to a nozzle;

FIG. 4 is a schematic cross-sectional view of the reservoir of FIG. 3;

fig. 5 is a block diagram of another gas-liquid switching device according to a first embodiment of the present invention;

fig. 6 is a block diagram of a cleaning system according to a second embodiment of the present invention;

FIG. 7 is a block diagram of another cleaning system according to a second embodiment of the present invention;

fig. 8 is a flowchart of a gas-liquid switching method according to a fourth embodiment of the present invention;

fig. 9 is a flowchart of a gas-liquid switching method according to a fifth embodiment of the present invention;

fig. 10 is a flowchart of a gas-liquid switching method according to a sixth embodiment of the present invention;

FIG. 11 is a flowchart providing steps for determining whether the common rail chamber is full of liquid based on the pressure information and the level height information according to a sixth embodiment of the present invention;

FIG. 12 is a flowchart illustrating a sixth embodiment of the present invention, which provides steps for controlling the air pressure in the air storage tank to be maintained at a predetermined air pressure value during the air intake process;

FIG. 13 is a flowchart providing steps for determining whether the common rail chamber is filled with gas based on the pressure information and the level height information according to a sixth embodiment of the present invention;

fig. 14 is a schematic structural diagram of a gas-liquid switching system according to a sixth embodiment of the present invention;

fig. 15 is a schematic structural diagram of an electronic device implementing the gas-liquid switching method according to the embodiment of the present invention.

Wherein: 1. a common rail module; 11. a liquid inlet path; 12. an air inlet path; 13. discharging the gas circuit; 131. an air outlet branch circuit; 14. a liquid outlet path; 141. liquid outlet shunting; 15. a switch submodule; 151. a liquid inlet control unit; 152. an intake air control unit; 153. a liquid outlet control unit; 1531. liquid outlet control is divided into units; 154. an air outlet control unit; 1541. an air outlet control sub-unit; 16. a pressure relief unit; 17. a first pressure detecting member; 2. a nozzle; 3. a gas supply module; 31. an air pump; 32. a gas storage tank; 321. a second pressure detecting member; 4. a liquid supply module; 41. a liquid storage tank; 411. a liquid level detection member; 412. refluxing the liquid inlet; 413. a flow guide member; 414. a backflow guide; 415. a guide channel; 416. a first temperature detection member; 42. an electric pump; 5. a control module; 51. a CAN module; 52. a wireless transmission module; 6. a telescoping mechanism; 7. a drive member; 8. a heating module; 9. a cover; 10. a second temperature detection member; 20. a return line; 100. an acquisition module; 200. a liquid inlet control module; 300. a liquid outlet control module; 400. an air intake control module; 500. and an air outlet control module.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example one

Fig. 1 is a block diagram of a gas-liquid switching device according to a first embodiment of the present invention, and fig. 2 is a schematic connection diagram of a gas supply module 3 and a liquid supply module 4 according to a first embodiment of the present invention and a common rail module 1; the present embodiment is applicable to a case where the environmental sensing member on the running vehicle is cleaned, and as shown in fig. 1 and 2, the gas-liquid switching device includes: the device comprises a common rail module 1, an air supply module 3, a liquid supply module 4 and a control module 5;

a common rail cavity is arranged in the common rail module 1, and the common rail cavity is provided with a liquid inlet path 11, a gas inlet path 12, a gas outlet path 13 and a liquid outlet path 14; the liquid supply module 4 is communicated with the liquid inlet path 11, and the gas supply module 3 is communicated with the gas inlet path 12; the liquid inlet path 11 is a path of a common rail cavity for inlet liquid, the gas inlet path 12 is a path of a common rail cavity for inlet gas, the gas outlet path 13 is a path of a common rail cavity for outlet gas, and the liquid outlet path 14 is a path of a common rail cavity for outlet liquid. The liquid supply module 4 is a module capable of conveying liquid, and the liquid supply module 4 is communicated with the liquid inlet path 11, so that the liquid supply module 4 can convey liquid to the common rail cavity through the liquid inlet path 11. The gas supply module 3 is a module capable of supplying gas, and the gas supply module 3 communicates with the gas inlet path 12, so that gas can be supplied to the common rail chamber through the gas inlet path 12.

The common rail module 1 includes a switch sub-module 15, the switch sub-module 15 includes a liquid inlet control unit 151, an air inlet control unit 152, a liquid outlet control unit 153, and an air outlet control unit 154, the liquid inlet control unit 151 is used for controlling liquid inlet of the liquid inlet path 11, the air inlet control unit 152 is used for controlling air inlet of the gas inlet path 12, the liquid outlet control unit 153 is used for controlling liquid outlet of the gas outlet path 14, and the air outlet control unit 154 is used for controlling gas outlet of the gas outlet path 13.

The switch sub-module 15 is a module capable of controlling the on/off of the passage, for example, when the liquid inlet 11 is open, liquid can enter the common rail cavity through the liquid inlet 11, but when the liquid inlet 11 is closed, liquid cannot enter the common rail cavity through the liquid inlet 11.

The liquid inlet control unit 151 is a unit capable of controlling the on/off of the liquid inlet path 11, and in a specific embodiment, the liquid inlet control unit 151 includes an electromagnetic valve, and the on/off of the liquid inlet path 11 can be conveniently controlled by the electromagnetic valve, so that the liquid inlet of the liquid inlet path 11 can be controlled.

The air intake control unit 152 is a unit capable of controlling the on/off of the air intake path 12, and in a specific embodiment, the air intake control unit 152 includes an electromagnetic valve, and the on/off of the air intake path 12 can be conveniently controlled by the electromagnetic valve, so as to control the air intake of the air intake path 12.

The liquid outlet control unit 153 is a unit capable of controlling on and off of the liquid outlet path 14, and in a specific embodiment, the liquid outlet control unit 153 includes an electromagnetic valve, and the on and off of the liquid outlet path 14 can be conveniently controlled through the electromagnetic valve, so that the liquid outlet of the liquid outlet path 14 can be controlled.

The air outlet control unit 154 is a unit capable of controlling the on/off of the air outlet channel 13, and in a specific embodiment, the air outlet control unit 154 includes an electromagnetic valve, and the on/off of the air outlet channel 13 can be conveniently controlled through the electromagnetic valve, so as to control the air outlet of the air outlet channel 13.

The control module 5 is electrically connected with the liquid inlet control unit 151, the gas inlet control unit 152, the liquid outlet control unit 153, the gas outlet control unit 154, the liquid supply module 4 and the gas supply module 3, and the control module 5 is used for controlling the liquid inlet control unit 151, the gas inlet control unit 152, the liquid outlet control unit 153, the gas outlet control unit 154, the liquid supply module 4 and the gas supply module 3 so as to switch the common rail cavity between liquid storage and gas storage.

The common rail cavity is provided with a liquid inlet path 11 and a liquid outlet path 14 for liquid inlet and liquid outlet, and an air inlet path 12 and an air outlet path 13 for air inlet and air outlet. Therefore, by controlling different parts in the switch sub-module 15 through the control module 5 to control the on and off of different channels and controlling the liquid supply and the gas supply of the liquid supply module 4 and the gas supply module 3, the liquid or the gas stored in the common rail cavity can be switched between the liquid storage and the gas storage. For example, the control module 5 first controls the liquid inlet control unit 151 of the switch submodule 15 to make the liquid inlet 11 in a communicated state, and controls the liquid supply module 4 to supply liquid to the common rail cavity through the liquid inlet 11, and at this time, the common rail cavity is filled with liquid. Then, the liquid inlet control unit 151 of the switch submodule 15 is controlled to make the liquid inlet 11 in a broken state, and the gas inlet control unit 152 of the switch submodule 15 is controlled to make the gas inlet 12 in an open state and to control the gas supply module 3 to supply gas to the common rail cavity through the gas inlet 12, the residual liquid in the common rail cavity can be discharged through the liquid outlet 14, or a backflow liquid outlet can be arranged in the common rail cavity, the residual liquid in the common rail cavity flows back into the liquid supply module 4 through the backflow liquid outlet, and the gas supply module 3 is controlled to continuously supply gas to the common rail cavity through the gas inlet 12, so that the common rail cavity can be filled with gas, and the switching from liquid to gas in the common rail cavity is realized. The liquid feeding process can be performed again when the common rail cavity is filled with gas, so that the common rail cavity is switched from gas to liquid. Liquid or gas can be stored in the common rail cavity by controlling the on and off of different passages and controlling the liquid supply and gas supply of the liquid supply module 4 and the gas supply module 3, and the control method can be various and is not described in detail herein.

Above-mentioned scheme, through setting up common rail module 1, air feed module 3, supply liquid module 4 and control module 5, make common rail module 1 inside be equipped with the common rail chamber simultaneously, the common rail chamber has liquid inlet 11, air inlet 12, gas outlet 13 and goes out liquid way 14, and set up switch submodule 15 and control liquid inlet 11, air inlet 12, the feed liquor of gas outlet 13 and play liquid way 14, admit air, go out liquid and give vent to anger, thereby can make common rail chamber of common rail module 1 switch in liquid and gas, so only need a common rail chamber just can hold gas or liquid respectively, when this gas-liquid auto-change over device is applied to clean system, can make the clean system who uses when having two kinds of functions of water spray and blowing less, it is comparatively convenient to install and use. The problem of if make clean system have two kinds of functions of water spray and air blowing simultaneously, clean system's volume often is great, installation and use comparatively inconvenient is solved.

In an alternative embodiment of the present invention, as shown in fig. 2, the liquid outlet control unit 153 includes a plurality of liquid outlet control sub-units 1531;

the liquid outlet path 14 includes a plurality of liquid outlet branches 141, and the plurality of liquid outlet control sub-units 1531 are configured to control the liquid outlet of the plurality of liquid outlet branches 141 in a one-to-one correspondence manner;

the liquid outlet control subunit 1531 may include an electromagnetic valve, and the liquid outlet branch 141 may be conveniently controlled to be turned on or off by the electromagnetic valve. By providing the liquid outlet path 14 with the plurality of liquid outlet branches 141, different members to be cleaned can be cleaned by different liquid outlet branches 141, and the application range is wide. Meanwhile, different liquid outlet branches 141 are opened or closed according to use requirements so as to clean the specified parts to be cleaned, and the flexibility in use is high.

Illustratively, the part to be cleaned is an environment sensing part of the vehicle, and the environment sensing part comprises an important level sensing part and a basic level sensing part; the importance level sensing part is a sensing part which is important for the safety of the vehicle, such as a safety-related camera, a radar and the like. The basic level sensing component refers to a sensing component with a low importance on safety, such as a front windshield, a rear windshield, and the like, except the important level sensing component.

The plurality of liquid outlet branches 141 are divided into important-level liquid outlet branches and basic-level liquid outlet branches; the important-level liquid outlet branch is used for discharging liquid to clean the important-level sensing component, and the basic-level liquid outlet branch is used for discharging liquid to clean the basic-level sensing component. Particularly, during cleaning, the liquid outlet branch 141 can be connected with the nozzles 2 (not shown in fig. 2), liquid outlet is realized through the nozzles 2, the number of the nozzles 2 can be multiple, the nozzles 2 communicated with the important-stage liquid outlet branch can be opposite to the important-stage sensing component during cleaning, and therefore the important-stage liquid outlet branch can discharge liquid through the nozzles 2 to clean the important-stage sensing component. The nozzle 2 communicating with the base-stage liquid-outgoing path may be opposed to the base-stage sensing member at the time of cleaning, so that the base-stage liquid-outgoing path can be discharged through the nozzle 2 to clean the base-stage sensing member.

In an alternative embodiment of the present invention, outlet control unit 154 includes a plurality of outlet control sub-units 1541; the gas outlet circuit 13 includes a plurality of gas outlet branches 131, and the plurality of gas outlet control sub-units 1541 are configured to control the gas outlet of the plurality of gas outlet branches 131 in a one-to-one correspondence manner.

The number of the parts to be cleaned may be multiple, for example, the parts include a back-up rear-view camera, a panoramic parking camera, a radar, and the like, and the air outlet control subunit 1541 may include an electromagnetic valve, and the on and off of the air outlet branch 131 may be conveniently controlled by the electromagnetic valve. By enabling the air outlet 13 to comprise a plurality of air outlet branches 131, different parts to be cleaned can be dried through different air outlet branches 131, and the application range is wide. Simultaneously also with opening or closing different branch circuits 131 of giving vent to anger according to the user demand to the appointed part of waiting to clean weathers, the flexibility during the use is higher.

On the basis of the embodiment, the part to be cleaned is an environment sensing part of the vehicle, and the environment sensing part comprises an important level sensing part and a basic level sensing part; the plurality of outlet branches 131 are divided into a critical-level outlet branch and a basic-level outlet branch, and specifically, when cleaning, the outlet branch 131 may be connected to the nozzle 2 (not shown in fig. 2), and outlet is performed through the nozzle 2, the critical-level outlet branch is used for discharging gas through the nozzle 2 to clean the critical-level sensing component, and the basic-level outlet branch is used for discharging gas through the nozzle 2 to clean the basic-level sensing component. Wherein, the number of the nozzles 2 can be a plurality, the nozzles 2 communicated with the important-level air outlet branch can be opposite to the important-level sensing part when cleaning, so that the important-level air outlet branch can be used for blowing air out through the nozzles 2 to dry the important-level sensing part. The nozzle 2 communicating with the base-level outlet branch may be opposite to the base-level sensing part when cleaned, so that the base-level outlet branch can be discharged through the nozzle 2 to dry the base-level sensing part.

In an alternative embodiment of the present invention, as shown in FIG. 3, the liquid supply module 4 comprises a liquid storage tank 41 and an electric pump 42, the liquid storage tank 41 having a liquid supply port, the liquid supply port and the liquid inlet 11 being in communication via the electric pump 42; the control module 5 is electrically connected to the electric pump 42 for controlling the operation of the electric pump 42. The liquid storage tank 41 is a container capable of storing liquid, and the stored liquid may be common water or specific cleaning liquid, and is not limited specifically herein, but is only an example. The operation state of the electric pump 42 refers to whether the electric pump 42 is activated or deactivated, and may also include the rotation speed of the electric pump 42, and the like. Since the liquid supply port of the liquid storage tank 41 and the liquid inlet 11 are communicated with each other by the electric pump 42, the electric pump 42 can feed the liquid stored in the liquid storage tank 41 to the liquid inlet 11 by controlling the operation state of the electric pump 42.

As shown in fig. 3, the gas-liquid switching device further includes a liquid level detecting member 411, and the liquid level detecting member 411 is used for detecting the liquid level height of the liquid storage tank 41; the control module 5 is electrically connected with the liquid level detection part 411 and is used for acquiring the liquid level height detected by the liquid level detection part 411.

Wherein, liquid level detection piece 411 means can detect the part of liquid level height, and in a specific embodiment, liquid level detection piece 411 can be level sensor, sets up level sensor inside liquid reserve tank 41, alright detect the liquid level height of the inside of liquid reserve tank 41. Because control module 5 is connected with liquid level detection piece 411 electricity, so control module 5 can acquire the liquid level height that liquid level detection piece 411 detected, and then can be convenient for know whether the rail intracavity is full of liquid. For example, by detecting the liquid level of the tank 41 before the liquid is injected and the liquid level of the tank 41 when the common rail chamber is filled with the liquid, when the amount of decrease in the liquid level of the tank 41 is the same as the volume of the common rail chamber, it is indicated that the common rail chamber is highly likely to be filled with the liquid.

In an alternative embodiment of the present invention, as shown in fig. 2, the gas-liquid switching device further includes a first pressure detecting member 17, the first pressure detecting member 17 being for detecting a pressure inside the common rail chamber; the first pressure detecting member 17 is a member capable of detecting pressure, and in a specific embodiment, the first pressure detecting member 17 may include a pressure sensor, and a detecting portion of the pressure sensor may be disposed in the common rail cavity, so as to detect the pressure inside the common rail cavity.

As shown in fig. 3, the common rail module 1 further includes a pressure relief unit 16, the common rail cavity has a backflow liquid outlet, the liquid storage tank 41 has a backflow liquid inlet 412, a backflow pipeline 20 is disposed between the backflow liquid outlet and the backflow liquid inlet 412 and is communicated with the backflow liquid inlet through the backflow pipeline 20, and the pressure relief unit 16 is used for controlling opening and closing of the backflow pipeline 20; the pressure relief unit 16 is a unit capable of controlling the opening and closing of the return line 20, and in a specific embodiment, the pressure relief unit 16 may include a solenoid valve. When return line 20 opened, the common rail chamber communicates with liquid storage tank 41 to the pressure in the common rail chamber can be released, plays the function of pressure release. Meanwhile, the liquid in the common rail cavity can also flow back to the liquid storage tank 41 through the return pipeline 20, so that the waste of the liquid is effectively prevented.

The control module 5 is electrically connected with both the first pressure detector 17 and the pressure relief unit 16, and is configured to control the pressure relief unit 16 based on the pressure inside the common rail cavity detected by the first pressure detector 17 so that the pressure inside the common rail cavity satisfies a preset pressure rule. Wherein, first pressure measurement spare 17 can detect the pressure of common rail intracavity portion, and pressure release unit 16 can make the pressure of common rail intracavity portion released, so through the pressure control pressure release unit 16 of the intracavity portion of common rail that detects based on first pressure measurement spare 17, can control the pressure of common rail intracavity portion, makes the pressure of common rail intracavity portion satisfy and predetermines pressure rule, convenient to use. The preset pressure rule refers to a condition that the pressure inside the common rail cavity is preset to meet, for example, when the common rail cavity is filled with liquid, the pressure is constant at X, at this time, the pressure can be kept at X according to the preset pressure rule, and by controlling the pressure of the common rail cavity during liquid feeding, the pressure of the common rail cavity can be kept at X, so that the common rail cavity is guaranteed to be filled with liquid.

In an alternative embodiment of the present invention, as shown in fig. 4, a flow guide 413 extending downward from the top is disposed inside the liquid storage tank 41, a backflow guide 414 is further disposed inside the liquid storage tank 41, the backflow guide 414 has a guide channel 415, and the guide channel 415 is communicated with the backflow inlet 412; the guide passage 415 extends in a direction opposite to the surface of the guide piece 413.

The flow guide piece 413 may extend directly downward in the vertical direction, or may extend slightly obliquely downward, and is not limited herein. Meanwhile, the guide member 413 may be a square plate fixed to the inner upper wall of the reservoir 41, in which case the surface of the guide member 413 refers to the surface opposite to the guide passage 415. The flow guide 413 may also be formed by an inwardly recessed groove formed in the outer wall of the reservoir 41, for example, in a specific embodiment, the outer wall of the upper portion of the reservoir 41 is recessed inwardly to form a groove. The surface of the flow guide 413 is then the surface facing the guide channel 415 opposite the groove wall. The extending direction of the guide channel 415 may be horizontal or slightly inclined, and the guide channel extends obliquely downward from the direction of communicating with the backflow inlet port 412 to the direction away from the backflow inlet port 412, and the specific inclined angle is not limited herein. Through making the extending direction of guide channel 415 opposite with the surface of water conservancy diversion piece 413, can get into guide channel 415 by backward flow inlet 412 during the liquid backward flow, then spout to the surface of water conservancy diversion piece 413 and slowly fall to the liquid level again, reduce the liquid level and receive the fluctuation of assaulting the formation, and then improved the precision of the liquid level height that liquid level detection piece 411 detected.

In an alternative embodiment of the present invention, as shown in fig. 5, the gas-liquid switching device further includes a heating module 8 and a first temperature detecting member 416, the first temperature detecting member 416 is disposed in the liquid storage tank 41 for detecting the temperature of the liquid in the liquid storage tank 41; the first temperature detector 416 is a component capable of detecting temperature, for example, in a specific embodiment, the first temperature detector 416 is a temperature sensor.

The heating module 8 and the first temperature detecting part 416 are both electrically connected with the control module 5, and the control module 5 is used for controlling the heating module 8 to heat the liquid in the liquid storage tank 41 based on the temperature of the liquid in the liquid storage tank 41 detected by the first temperature detecting part 416. The heating module 8 is a module capable of dissipating heat, and may be, for example, a PTC heating module 8, and the structure of the heating module 8 may be various as long as the heating function can be realized, which is not specifically limited herein. In cold time, the phenomenon that liquid in the liquid reserve tank 41 may freeze causes unable flow, heats liquid through the heating module 8 this moment, can prevent that the liquid in the liquid reserve tank 41 from freezing and influencing subsequent use.

In an alternative embodiment of the present invention, as shown in fig. 3 and 5, the air supply module 3 includes an air pump 31 and an air tank 32, the air tank 32 has an air supply port, the air supply port is communicated with the air inlet path 12, the air pump 31 is connected to the air tank 32, and the air pump 31 is used for controlling the air tank 32 to supply air to the air inlet path 12. The air tank 32 is a container storing air, the air pump 31 is a component capable of compressing air into the air tank 32, and the operation state of the air pump 31 is whether the air pump 31 is started or stopped, and may include the rotation speed of the air pump 31. By providing the air pump 31 and the air tank 32, air can be supplied to the intake passage 12 when necessary.

The gas-liquid switching device further includes a second pressure detecting element 321, and the second pressure detecting element 321 is configured to detect the gas pressure of the gas tank 32; the control module 5 is electrically connected to both the second pressure detecting element 321 and the air pump 31, and is configured to acquire the air pressure of the air tank 32 and control the operating state of the air pump 31 based on the air pressure of the air tank 32.

The second pressure detector 321 is a component capable of detecting the air pressure, and in a specific embodiment, the second pressure detector 321 is a pressure sensor, and a detection portion of the pressure sensor is located inside the air tank 32, so that the air pressure of the air tank 32 can be detected. The control module 5 can also control the operating state of the air pump 31, and when the operating state of the air pump 31 changes, the air pressure inside the air tank 32 also changes, so the control module 5 can keep the air pressure inside the air tank 32 at a specific value by obtaining the air pressure data of the air tank 32 detected by the second pressure detecting element 321 and then controlling the operating state of the air pump 31.

In an alternative embodiment of the invention, as shown in fig. 5, the control module 5 comprises a CAN module 51 and/or a wireless transmission module 52.

The CAN module 51 is an intelligent electronic control device for forwarding communication data among the electronic control devices of the whole vehicle, so that the whole vehicle CAN realize a regional network control system of the vehicle-mounted electronic control devices. The control module 5 may communicate with the vehicle through the CAN module 51, facilitating the acquisition of cleaning instructions sent by the driver on the vehicle through the vehicle to perform the cleaning process.

The wireless transmission module 52(RF wireless module) is a module for performing wireless transmission using wireless technology. It is widely applied to the fields of computer wireless network, wireless communication, wireless control and the like. Through wireless transmission module 52, information related to cleaning and fault information and normal information of the vehicle environment sensing part cleaning system, a cleaning completion command and the like can be sent to an intelligent device capable of performing wireless communication, and the intelligent device can be a smart phone, a smart watch, a computer, a smart bracelet and the like. Therefore, the driver or other passengers on the vehicle can acquire cleaning related information through the intelligent device, and the use is convenient.

Example two

A second embodiment of the present invention provides a cleaning system, fig. 6 is a block diagram of a cleaning system according to a second embodiment of the present invention, and as shown in fig. 6, the cleaning system includes a gas-liquid switching device and a nozzle 2 according to any embodiment of the present invention; the gas outlet channel 13 and the liquid outlet channel 14 are both communicated with the nozzle 2, and the nozzle 2 is used for sequentially spraying liquid and gas in the common rail cavity for cleaning.

In the above scheme, the outlet channel 13 and the outlet channel 14 of the gas-liquid switching device are both communicated with the nozzle 2, and the nozzle 2 is used for sequentially spraying the liquid and the gas in the common rail cavity for cleaning. Therefore, the control module 5 of the gas-liquid switching device can enable the common rail cavity of the common rail module 1 to be switched between liquid and gas, so that the nozzle 2 can spray the liquid and the gas under different conditions or at different time, the liquid sprayed out of the cleaning component can be cleaned firstly in the running process of the vehicle, then the gas sprayed out of the cleaning component is dried, the residual moisture is prevented from interfering the normal use of the cleaning component, the problem that the cleaning component is inconvenient to wipe in the running process of the vehicle, the running safety of the vehicle is easily affected is solved, and the safety in the running process of the vehicle is improved. Meanwhile, gas and liquid can share one common rail cavity, and the gas and the liquid in the common rail cavity are switched when the system is used, so that the space is effectively utilized, and the volume of a cleaning system of the vehicle environment sensing component is reduced.

In an alternative embodiment of the present invention, as shown in fig. 7, the cleaning system further includes a telescoping mechanism 6 and a driving member 7, the control module 5 is electrically connected to the driving member 7, the driving member 7 is connected to the telescoping mechanism 6, and the control module 5 is configured to drive the telescoping mechanism 6 to telescope through the driving member 7; a telescopic mechanism 6 is connected to the nozzle 2 for bringing the nozzle 2 to a cleaning position and a retracted position, respectively, upon telescoping.

The driving member 7 is a member capable of driving the telescopic mechanism 6 to extend and retract, and may be a common motor, for example. The telescopic mechanism 6 is a mechanism that can be extended and contracted, and is, for example, a member that can be extended and contracted by being driven by a motor. The cleaning position refers to a position where the nozzle 2 is located when the environment sensing part is cleaned, and the retracted position refers to a position where the nozzle 2 is located when cleaning is not performed. For example, the nozzle 2 is located in the vehicle in the initial state, the telescopic mechanism 6 is in the retracted state, when cleaning is required, the control mechanism controls the driving member 7 to drive the telescopic mechanism 6 to extend, the nozzle 2 is located at the cleaning position, for example, opposite to or above the part to be cleaned, and liquid or gas sprayed from the nozzle 2 can be sprayed onto the part to be cleaned for cleaning. Through this mode, can be convenient just stretch out nozzle 2 to clean position when needs are clean, compare fixed installation, the flexibility is high, can adjust according to the motorcycle type of difference.

In an alternative embodiment of the present invention, the cleaning system further comprises a second temperature detecting member 10 and a cover 9, the cover 9 is used for covering the outside of the component to be cleaned, and the second temperature detecting member 10 is used for detecting the temperature of the cover 9; the heating module 8 and the second temperature detecting part 10 are both electrically connected with the control module 5, and the control module 5 is used for controlling the heating module 8 to heat the cover 9 based on the temperature of the cover 9 detected by the second temperature detecting part 10.

The second temperature detector 10 is a component capable of detecting temperature, such as a temperature sensor, the heating module 8 is a module capable of dissipating heat, such as a PTC heating module 8, and the structure of the heating module 8 may be various as long as the heating function can be achieved, which is not specifically limited herein. The cover 9 refers to a cover 9 capable of protecting a member to be cleaned, which is an environmental sensing member in a specific embodiment. The developments in the north are cold, and the phenomenon of icing appears in the unavoidable meeting of environmental perception part is covered by snow, if wash the completion in the difficult period of time directly with glass water, heat cover 9 through crossing when the temperature is low, played the effect that covers ice and snow to environmental perception part and melt to accelerated cleaning time and washing quality, makeed the cleanness more quick cleaner.

EXAMPLE III

The third embodiment of the invention provides a vehicle which comprises a vehicle body, wherein an environment sensing part and a cleaning system of any embodiment of the invention are arranged on the vehicle body, and the cleaning system is used for cleaning the environment sensing part.

The cleaning system is arranged on the vehicle and used for cleaning the environment sensing component, so that the problem that the driving safety of the vehicle is easily affected due to the fact that the environment sensing component is inconvenient to clean in the driving process of the vehicle is solved, and the safety of the vehicle in the driving process is improved.

On the basis of the above embodiment, the environment sensing component includes an importance level sensing component and a base level sensing component, and the importance level sensing component includes at least one of a security camera and a security radar. Through grading the environment perception part, when the liquid amount of the liquid for cleaning is insufficient, the important level perception part can be cleaned preferentially, and the safety of the vehicle in the running process is guaranteed.

Example four

Fig. 8 is a flowchart of a cleaning method for a gas-liquid switching method according to a fourth embodiment of the present invention, where this embodiment is applicable to a case where an environment sensing component on a running vehicle is cleaned, and the method may be executed by a gas-liquid switching system, where the gas-liquid switching system may be implemented in a form of hardware and/or software, and the gas-liquid switching system may be configured in a control module.

As shown in fig. 8, the method includes:

and S110, acquiring a cleaning instruction.

The cleaning instruction refers to an instruction sent by a user through intelligent equipment to instruct a cleaning system to clean, or an instruction automatically generated when the cleaning system detects that a part to be cleaned meets the cleaning requirement to clean. The cleaning instruction can be generated in various ways, and whether the cleaning process is needed or not can be determined by obtaining the cleaning instruction, so that gas-liquid switching in the common rail cavity is realized during the cleaning process.

And S120, controlling the switch submodule and the liquid supply module based on the cleaning instruction to enable the common rail cavity to start liquid supply through the liquid inlet circuit.

The switch submodule is a module capable of controlling liquid inlet, air inlet, liquid outlet and air outlet of the liquid inlet path, the air outlet path and the liquid outlet path, and the liquid supply module is a module capable of conveying liquid, so that the liquid inlet path is in a communicated state by controlling the switch submodule and the liquid supply module, the liquid supply module is started to work, the liquid supply module can continuously supply liquid for the common rail cavity through the liquid inlet path, and the common rail cavity starts to feed liquid through the liquid inlet path at the moment.

And S130, determining whether the common rail cavity is full of liquid in real time.

Wherein, in order to avoid the follow-up bubble that contains when going out liquid, through real-time determination whether the common rail chamber is full of liquid, just carry out follow-up step when the common rail chamber is full of liquid, the liquid that can effectively avoid going out contains the condition appearance that the bubble influences cleanliness factor when clean.

If the common rail cavity is full of liquid, step S140 is performed. If not, continue to execute S130.

And S140, controlling the switch sub-module based on the cleaning instruction to enable the liquid in the common rail cavity to be sprayed out through the liquid outlet path.

After the common rail cavity is filled with liquid, the switch sub-module can control the liquid outlet path to be in a communicated state, so that the liquid in the common rail cavity can be sprayed out through the liquid outlet path to clean the part to be cleaned. The volume in the common rail cavity is fixed, and when the common rail cavity is filled with liquid, the output liquid is ensured to be bubble-free, so that the cleanliness during cleaning is ensured.

S150, determining whether the liquid outlet time length of the liquid sprayed out through the liquid outlet path in the common rail cavity reaches a preset first time length in real time.

The preset first time period is the time period for ejecting the liquid through the liquid outlet path, and the cleaning time required by different parts is different, so the liquid ejecting time can be freely set according to the use requirement, for example, in a specific embodiment, the preset first time period can be 3 seconds.

If the liquid outlet time reaches the preset first time, executing the step S160, otherwise, continuing to execute the step S150.

And S160, controlling the switch sub-module and the air supply module to discharge the liquid in the common rail cavity and start air intake through an air intake passage.

When the liquid outlet time reaches the preset first time, the liquid outlet is completed, and in order to avoid the influence of the residual moisture on the sight of a driver, the air can be sprayed to blow dry the moisture on the part to be cleaned. Before air injection, gas is required to be contained in the common rail cavity, so that liquid in the common rail cavity needs to be discharged and air inflow is started, the switch sub-module can be controlled to enable the air inflow channel to be in a communicated state and the air supply module is controlled to start air supply, and therefore the liquid in the common rail cavity can be discharged from the liquid outflow channel in the air inflow process. And the liquid outlet path can be closed when the common rail cavity is communicated with the liquid storage tank of the liquid supply module through the return line, so that the liquid in the common rail cavity is discharged into the liquid storage tank of the liquid supply module through the return line.

And S170, determining whether the common rail cavity is filled with gas in real time.

If the common rail cavity is filled with gas, the step S180 is executed, and if not, the step S170 is continuously executed.

Wherein, the gas of giving vent to anger when having liquid in the common rail intracavity can be thoughtlessly had liquid, causes the condition that can't will treat the moisture on the cleaning member to weather, consequently, through real-time determination whether the common rail chamber is full of gas, just carries out follow-up step when the common rail chamber is full of gas, has avoided the gas of giving vent to anger to mix the condition emergence that liquid influences clean process.

And S180, controlling the switch sub-module to enable the gas in the common rail cavity to be sprayed out through the gas outlet.

Wherein, when being full of gas in the common rail intracavity, steerable switch submodule piece makes the state that the air outlet channel is in the expert, and the gas in the common rail intracavity just can be through the blowout of air outlet channel route nozzle this moment, just can be with treating the moisture on the cleaning member at this moment and weather in order to clean, effectively avoids moisture to remain the sight that influences the navigating mate.

According to the scheme, a cleaning instruction is obtained firstly, then the switch submodule and the liquid supply module are controlled based on the cleaning instruction, so that the common rail cavity starts to supply liquid through the liquid inlet circuit, and whether the common rail cavity is full of liquid or not is determined in real time; when the common rail cavity is full of liquid, the switch sub-module is controlled based on the cleaning instruction to enable the liquid in the common rail cavity to be sprayed out through a liquid outlet path, and whether the liquid outlet time length of the liquid sprayed out through the liquid outlet path in the common rail cavity reaches a preset first time length or not is determined in real time; then, when the liquid outlet time reaches a preset first time, the switch sub-module and the gas supply module are controlled to discharge liquid in the common rail cavity and start gas inlet through a gas inlet circuit, and whether the common rail cavity is full of gas or not is determined in real time; and finally, when the common rail cavity is filled with gas, the switch sub-module is controlled to enable the gas in the common rail cavity to be sprayed out through the gas outlet path. Therefore, the gas and the liquid can share one common rail cavity, the gas and the liquid in the common rail cavity are switched when the cleaning system is used, the space is effectively utilized, and the volume of the cleaning system is reduced when the cleaning system is applied to the cleaning system. Meanwhile, the cleaning system can clean liquid sprayed out of the part to be cleaned firstly and blow dry gas sprayed out of the part to be cleaned in the running process of the vehicle, so that the phenomenon that the part to be cleaned is interfered by residual moisture in normal work is avoided, the problem that the running safety of the vehicle is easily affected due to the fact that the part to be cleaned is not conveniently cleaned in the running process of the vehicle is solved, and the safety in the running process of the vehicle is improved.

EXAMPLE five

Fig. 9 is a flowchart of a gas-liquid switching method according to a fifth embodiment of the present invention, which is an improvement of the previous embodiment, and as shown in fig. 9, the gas-liquid switching method specifically includes the following steps:

and S200, acquiring a cleaning instruction.

And S210, controlling the switch submodule and the liquid supply module based on the cleaning instruction to enable the common rail cavity to start liquid supply through the liquid inlet circuit.

And S220, determining whether the common rail cavity is full of liquid in real time.

If the common rail cavity is full of liquid, step S230 is executed. If not, continue to execute S220.

And S230, controlling the switch sub-module based on the cleaning instruction to enable liquid in the common rail cavity to be sprayed out through a liquid outlet channel.

S240, determining whether the liquid outlet time length of the liquid in the common rail cavity sprayed out through the liquid outlet path reaches a preset first time length in real time.

If the liquid outlet time length reaches the preset first time length, the step S250 is executed, and if not, the step S240 is continuously executed.

And S250, controlling the switch sub-module and the air supply module to discharge the liquid in the common rail cavity and start air intake through an air intake passage.

And S260, determining whether the common rail cavity is filled with gas in real time.

If the common rail cavity is filled with gas, the step S270 is executed, and if not, the step S260 is continuously executed.

And S270, controlling the switch sub-module to enable the gas in the common rail cavity to be sprayed out through the gas outlet.

And S280, determining whether the air outlet time length of the gas sprayed out from the air outlet passage in the common rail cavity reaches a preset second time length in real time.

If yes, go to S290.

And S290, controlling the switch submodule and the liquid supply module to enable the common rail cavity to start liquid supply through the liquid inlet circuit.

S2100, determining whether the common rail cavity is full of liquid in real time.

If the common rail cavity is full of liquid, S230 is performed.

Wherein, through the process of carrying out the feed liquor again after jet-propelled, can make the rail intracavity be full of liquid again, be convenient for prepare for next time cleaning, when receiving cleaning instruction next time, can directly carry out the flow of going out liquid based on cleaning instruction, be convenient for prepare for next time cleaning, execution speed when having improved next time cleaning.

and controlling the pressure relief unit to be opened, and controlling the liquid inlet control unit and the electric pump to be opened after the pressure relief unit is opened so that the common rail cavity starts to feed liquid through the liquid inlet path.

The liquid inlet control unit is a component for controlling liquid inlet of the liquid inlet path, the pressure relief unit is opened to enable the pressure in the common rail cavity to be the same as the pressure in the liquid storage tank, and liquid in the liquid storage tank can be conveyed to the common rail cavity through the liquid inlet path when the electric pump is started. By opening the pressure relief unit before starting the electric pump, blockage can be avoided, so that the electric pump is started to make mistakes.

In an optional embodiment of the present invention, the controlling the switch sub-module and the gas supply module to discharge the liquid in the common rail chamber and start gas supply through a gas inlet path includes:

The air inlet control unit is a component for controlling air inlet of the air inlet circuit, the pressure relief unit is opened to enable the pressure in the common rail cavity to be the same as the pressure in the liquid storage tank, and when the air pump is started, the air in the air storage tank can be conveyed to the common rail cavity through the air inlet circuit. Therefore, the common rail cavity can start to intake air through the air inlet channel by controlling the air pump, the air inlet control unit and the pressure relief unit to be opened. By opening the pressure relief unit before starting the air pump, the blockage can be avoided, so that the air pump is started to make mistakes.

EXAMPLE six

Fig. 10 is a flowchart of a gas-liquid switching method according to a sixth embodiment of the present invention, which is an improvement of the previous embodiment, and as shown in fig. 10, the gas-liquid switching method specifically includes the following steps:

and S300, acquiring a cleaning instruction.

S310, pressure information of the common rail cavity detected by the first pressure detection piece is obtained in real time.

The first pressure detection piece can be a pressure sensor, and the acquisition mode can be that the pressure sensor is electrically connected with the first pressure detection piece, so that the pressure information of the common rail cavity detected by the first pressure detection piece can be acquired.

S320, acquiring liquid level height information of the liquid storage tank detected by the liquid level detection piece in real time.

Wherein, the liquid level detection spare can be level sensor, and level sensor can set up inside the liquid reserve tank to alright detect the liquid level height information of liquid reserve tank. The liquid level height information that acquires liquid level detection spare and detect has the multiple, for example can be connected with liquid level detection spare electricity, alright acquire the liquid level height information of the liquid reserve tank that liquid level detection spare detected.

And S330, controlling the switch submodule and the liquid supply module based on the cleaning instruction to enable the common rail cavity to start liquid supply through the liquid inlet circuit.

And S340, determining whether the common rail cavity is full of liquid in real time based on the pressure information and the liquid level height information.

The volume of the common rail cavity is fixed, the liquid in the common rail cavity is derived from the liquid storage tank, and the pressure of the gas filled in the common rail cavity is different from that of the liquid filled in the common rail cavity, so that whether the liquid is filled in the common rail cavity or not can be determined according to the pressure information and the liquid level height information.

If the common rail cavity is full of liquid, step S350 is executed. If not, continue to execute S340.

And S350, controlling the switch sub-module based on the cleaning instruction to enable the liquid in the common rail cavity to be sprayed out through the liquid outlet path.

S360, determining whether the liquid outlet time of the liquid in the common rail cavity sprayed out through the liquid outlet path reaches a preset first time.

If the liquid outlet time reaches the preset first time, executing the step S370, otherwise, continuing to execute the step S360.

And S370, controlling the switch sub-module and the air supply module to enable liquid in the common rail cavity to be discharged and air to start to be supplied through an air inlet channel.

And S380, controlling the air pressure of the air storage tank to be kept at a preset air pressure value in the air inlet process.

The pressure in the common rail cavity can be kept stable by controlling the air pressure of the air storage tank to be kept at a preset air pressure value in the air inlet process, so that stable pressure can be provided when a plurality of air outlet branches are used for air outlet.

And S390, determining whether the common rail cavity is full of gas in real time based on the pressure information and the liquid level height information.

When liquid in the common rail cavity is gradually reduced and gas is gradually increased, the pressure is gradually increased and finally maintained at a certain specific pressure value, and meanwhile, the liquid discharged from the common rail cavity flows back to the liquid storage tank, so that whether the common rail cavity is filled with the gas or not can be determined according to the pressure information and the liquid level height information.

If the common rail cavity is filled with gas, executing the step S3100, otherwise, continuing to execute the step S390.

And S3100, controlling the switch sub-module to enable the gas in the common rail cavity to be sprayed out through an air outlet.

S3110, determining whether the air outlet time of the gas sprayed out of the common rail cavity through the air outlet passage reaches a preset second time in real time.

If so, go to S3120, otherwise, go to S3110.

And S3120, controlling the switch submodule and the liquid supply module to enable the common rail cavity to start liquid supply through the liquid inlet circuit.

S3130, determining in real time whether the common rail chamber is filled with liquid.

If the common rail cavity is full of liquid, S350 is executed.

On the basis of the above embodiment, as shown in fig. 11, the step S340 of determining whether the common rail chamber is full of liquid in real time based on the pressure information and the liquid level height information includes:

s341, controlling the rotating speed of the electric pump in real time based on the pressure information of the common rail cavity so as to keep the pressure of the common rail cavity at a preset pressure value.

The pressure of the common rail cavity filled with gas and the pressure of the common rail cavity filled with liquid are different, so that the pressure can be controlled to be the pressure when the common rail cavity is filled with liquid. In one specific embodiment, the preset pressure value may be 3 Bar.

And S342, determining the liquid level reduction amount of the water storage tank in the liquid inlet process based on the liquid level height information.

Wherein, the liquid level reduction amount refers to the amount of water in the water storage tank conveyed into the common rail cavity.

And S343, acquiring current information of the electric pump.

Wherein the current information refers to the current when the electric pump is working.

S344, determining whether the current information of the electric pump is a preset current value or not and determining whether the liquid level reduction amount of the liquid storage tank is equal to the volume of the common rail cavity or not.

When the current of the electric pump is a preset current value, the liquid level reduction amount of the liquid storage tank is equal to the volume of the common rail cavity, and the common rail cavity is filled with liquid and is free of bubbles at the moment. Therefore, at the moment, the switch sub-module can be controlled based on the cleaning instruction to enable the liquid in the common rail cavity to be sprayed out through the liquid outlet path, and whether the liquid outlet time length of the liquid sprayed out through the liquid outlet path in the common rail cavity reaches the preset first time length or not is determined in real time.

In an alternative embodiment of the present invention, as shown in fig. 12, the step S380 of controlling the air pressure of the air storage tank to be maintained at the preset air pressure value during the air intake process includes:

and S381, acquiring the real-time air pressure value of the air storage tank detected by the second pressure detection piece in real time.

And S382, controlling the rotating speed of the air pump in real time based on the real-time air pressure value of the air storage tank so as to keep the real-time air pressure value of the air storage tank at a preset pressure value.

The second pressure detection piece can be a pressure sensor, the rotating speed of the air pump is reduced when the pressure is high, the rotating speed of the air pump is increased when the pressure is low, the real-time air pressure value of the air storage tank can be kept at a preset pressure value through pressure closed-loop control, and in a specific embodiment, the preset pressure value can be 3 Bar.

In an alternative embodiment of the present invention, as shown in fig. 13, the step S390 of determining whether the common rail chamber is full of gas in real time based on the pressure information and the liquid level height information includes:

s391, determining the liquid level increasing amount of the water storage tank based on the liquid level height information.

The liquid level increasing amount of the liquid storage tank reflects the liquid amount of the common rail cavity flowing back to the inside of the liquid storage tank.

S392, determining whether the pressure of the common rail cavity is a preset pressure value or not and determining whether the liquid level increasing amount of the liquid storage tank is equal to the volume of the common rail cavity or not.

When the liquid in the common rail cavity is gradually reduced and the gas is gradually increased, the pressure is gradually increased and finally maintained at a certain specific pressure value, and meanwhile, the liquid exhausted from the common rail cavity returns to the liquid storage tank, so that when the pressure of the common rail cavity is a preset pressure value and the liquid level increase of the liquid storage tank is equal to the volume of the common rail cavity, the common rail cavity is full of gas and has no liquid, and the switch sub-module can be controlled to enable the gas in the common rail cavity to be sprayed out through the gas outlet circuit.

and determining whether the liquid level height information is less than a preset safety liquid level.

And if so, prohibiting executing the step of controlling the switch submodule and the liquid supply module to enable the common rail cavity to start liquid supply through the liquid inlet circuit based on the cleaning instruction.

Wherein, predetermine safe liquid level and refer to the liquid level that can not produce the potential safety hazard to the executive component when carrying out the cleaning process. In a specific embodiment, the preset safety level may be 0%. When the liquid level height information is smaller than the preset safe liquid level, the liquid supply module usually comprises an electric pump, the electric pump is damaged by idling if the electric pump is started, and the step of controlling the switch submodule and the liquid supply module to enable the common rail cavity to start to supply liquid through the liquid inlet circuit based on the cleaning instruction is forbidden, so that the electric pump can be effectively prevented from being damaged by idling, and the effect of protecting the electric pump is achieved.

The fault information refers to information reflecting fault conditions, and the fault information can be output in various ways, for example, can be sent to an intelligent device or a vehicle in a wireless way. Through the at least same self-checking in control switch submodule piece, air pump and the charge pump, can in time learn whether switch submodule piece, air pump and charge pump etc. have the damage through the self-checking to can in time learn whether gas-liquid auto-change over device is out of order, thereby navigating mate and other personnel also can in time learn the fault condition, so that in time handle when out of order.

On the basis of the above embodiment, at least one of the control switch submodule, the air pump and the electric pump is self-checked, and outputs fault information after the fault is self-checked, including:

and obtaining a pulse signal fed back by at least one of the switch submodule, the air pump and the electric pump.

And determining whether the pulse signal meets a preset fault rule.

If yes, determining the fault and outputting fault information.

The preset fault rule refers to a rule that a clock signal meets during a fault. The switch sub-module generally includes a solenoid valve, and the opening and closing of the solenoid valve generates a corresponding pulse signal (at this time, the pulse signal refers to a feedback signal generated in the opening and closing processes of the solenoid valve, for example, 0% duty ratio "low level", which is a valve closing state, and 100% duty ratio "high level", which is a valve opening state, when the system is started, based on the working requirement, the initial state should be a closed valve, and the feedback pulse signal is low level, which is normal, otherwise, abnormal, which is determined to be abnormal when the pulse signal is high level), and the air pump and the electric pump also generate a corresponding feedback pulse signal when the air pump and the electric pump are controlled.

the control switch submodule closes to seal the common rail cavity. The switch submodule is used for controlling liquid inlet, air inlet, liquid outlet and air outlet of the liquid inlet path, the air outlet path and the liquid outlet path, so that the common rail cavity can be in a closed state when the liquid inlet path, the air outlet path and the liquid outlet path are all closed.

And acquiring the pressure information of the common rail cavity detected by the first pressure detection member at a plurality of moments. The multiple times are different times after the common rail cavity is closed, such as the pressure of the common rail cavity at the first second, the second and the third second after the common rail cavity is closed, and at 3 times.

Determining whether or not the fluctuation of the pressure information of the common rail chamber detected by the first pressure detecting member at a plurality of times exceeds a preset fluctuation value. The preset floating value refers to a value which is smaller than the floating value of the pressure information monitored at different moments when the common rail cavity is airtight.

If yes, determining that air leakage fault occurs and outputting fault information. When the common rail cavity is airtight, the common rail cavity is in a closed state, so that the pressure difference value inside the common rail cavity at different moments is small, namely the floating is small, and therefore when the floating of the pressure information of the common rail cavity detected by the first pressure detection part at multiple moments exceeds a preset floating value, the phenomenon that the common rail cavity is prone to air leakage is indicated, and therefore air leakage fault is determined to be generated at the moment and fault information is output. The fault information is information reflecting the occurrence of the gas leakage phenomenon, and a user can know the fault condition of the gas-liquid switching device by acquiring the fault information, so that the fault information is convenient to process in time.

If not, the self-checking is normal.

receiving an external control instruction and/or outputting system information in real time through a CAN module and a wireless transmission module, wherein the external control instruction comprises a cleaning instruction; the system information includes at least one of failure information, normal or abnormal information, and cleaning completion information.

The gas-liquid switching device CAN be communicated with a vehicle through the CAN module, an external control instruction issued by a user operating the vehicle to the gas-liquid switching device CAN be timely known, the gas-liquid switching device CAN be communicated with various intelligent devices capable of performing wireless communication through the wireless transmission module, the external control instruction issued by the user through the intelligent devices only CAN be acquired, and therefore the cleaning component CAN be timely cleaned in response to the instruction. Meanwhile, system information can be output in different modes, and a user can know the condition of the gas-liquid switching device in time conveniently.

and acquiring perception information of the part to be cleaned, wherein the perception information comprises camera image information.

And carrying out gray processing on the image information of the camera.

And determining whether the average gray scale of the image information of the camera is larger than a preset gray scale value.

If yes, a cleaning instruction is generated.

The sensing information refers to information related to an external environment acquired by the environment sensing component, for example, when the environment sensing component is a camera, the sensing information may be image information acquired by the camera, that is, camera image information. The graying processing means that the image cannot see color information, each pixel point only has one corresponding gray value, when the lens of the camera is blocked due to dirt, the gray value of the blocked pixel value is increased, therefore, the graying processing can be carried out in an averaging mode, and when the average gray value is larger than a preset gray value, the state needing to be cleaned is defined. Therefore, whether cleaning is needed or not can be known by determining whether the average gray scale of the image information of the camera is larger than a preset gray scale value, and a cleaning instruction is generated to clean when cleaning is needed. In a specific embodiment, the preset gray level is 153, and when the average gray level is greater than or equal to 153 (i.e. the blocked rate is greater than or equal to 20%), the state is defined as a state requiring cleaning, and when the average gray level is less than or equal to 128%, the state is understood as a clean state.

the liquid temperature in the liquid storage tank detected by the first temperature detection piece is acquired. The first temperature detector is a component capable of detecting the temperature of the liquid storage tank, for example, in a specific embodiment, the first temperature detector is a temperature sensor.

Determining whether the temperature of the liquid in the liquid storage tank is lower than a first preset temperature. The first preset temperature is a temperature which is not lower than the liquid in the liquid storage tank.

The heating module is a module capable of dissipating heat, and may be, for example, a PTC heating module, and the structure of the heating module may be various as long as the heating function can be realized, and is not specifically limited herein. In chilly time, the phenomenon that freezes probably appears in the liquid reserve tank causes unable flow, heats liquid through heating module this moment, can prevent that the liquid in the liquid reserve tank from freezing the follow-up use of influence.

In an alternative embodiment of the present invention, the member to be cleaned includes an environment sensing member including an importance level sensing member.

After the liquid level height information of the liquid reserve tank that real-time acquisition liquid level detection spare detected still includes: and determining whether the liquid level height information is greater than the preset safe liquid level and less than a preset sufficient liquid level.

If yes, the switch submodule is controlled based on the cleaning instruction to enable the liquid in the common rail cavity to be sprayed out through a liquid outlet path, and the method comprises the following steps:

and controlling the opening of the liquid outlet control sub-unit corresponding to the important-level liquid outlet branch to enable the liquid in the common rail cavity to be sprayed out through the important-level liquid outlet branch.

And control the switch submodule piece makes the intracavity gas of said common rail squirt through the outlet channel, including:

and controlling the air outlet control branch unit corresponding to the important-level air outlet branch to be opened so as to enable the air in the common rail cavity to be sprayed out through the important-level air outlet branch.

Wherein, the preset sufficient liquid level is the liquid level reached when the liquid in the water storage tank is enough to clean all the parts to be cleaned. When the liquid level height information is larger than the preset safe liquid level and smaller than the preset sufficient liquid level, the liquid in the water storage tank can execute the cleaning process but cannot clean all parts to be cleaned, so that only the important-level sensing part is cleaned at the moment, and the safety of the vehicle is effectively guaranteed under the condition that the liquid amount is insufficient.

the hood temperature detected by the second temperature detection member is acquired. The second temperature detecting element can be a temperature sensor, and the cover is a component covered outside the component to be cleaned.

Determining whether the hood temperature is below a second predetermined temperature.

If yes, the heating module is controlled to heat the cover.

Wherein, the developments in the north are cold, treat that the part inevitable can be covered by snow and appear freezing phenomenon, if wash in the difficult period of time with glass water directly and accomplish, through heating the cover when the temperature is lower, played and treated the part and cover the effect that ice and snow melted to cleaning time and washing quality have been accelerated, make the cleanness more quick cleaner.

EXAMPLE seven

Fig. 14 is a schematic structural diagram of a gas-liquid switching system according to a seventh embodiment of the present invention. As shown in fig. 14, the gas-liquid switching system includes:

an acquisition module 100 for acquiring a cleaning instruction;

the liquid inlet control module 200 is used for controlling the switch submodule and the liquid supply module to enable the common rail cavity to start liquid inlet through the liquid inlet circuit based on the cleaning instruction, and determining whether the common rail cavity is full of liquid in real time;

the liquid outlet control module 300 is configured to control the switch sub-module based on the cleaning instruction to spray liquid in the common rail cavity through a liquid outlet path if the common rail cavity is full of liquid, and determine whether liquid outlet time of the liquid sprayed through the liquid outlet path in the common rail cavity reaches a preset first time in real time;

the air inlet control module 400 is used for controlling the switch sub-module and the air supply module to discharge liquid in the common rail cavity and start air inlet through an air inlet channel if the liquid outlet time reaches a preset first time, and determining whether the common rail cavity is filled with gas in real time;

and the air outlet control module 500 is used for controlling the switch sub-module to enable the air in the common rail cavity to be sprayed out through an air outlet path if the common rail cavity is filled with the air.

Optionally, the gas-liquid switching system further includes an air outlet determination module, a liquid storage control module, and an execution module.

The gas outlet determining module is used for determining whether the gas outlet time length of the gas sprayed out from the gas outlet passage in the common rail cavity reaches a preset second time length in real time;

the liquid storage control module is used for controlling the switch sub-module and the liquid supply module to enable the common rail cavity to start liquid inlet through the liquid inlet path if the common rail cavity is full of liquid, and determining whether the common rail cavity is full of liquid in real time;

and the execution module is used for executing the step of controlling the switch submodule based on the cleaning instruction to enable the liquid in the common rail cavity to be sprayed out through the liquid outlet path if the common rail cavity is full of the liquid.

Optionally, the liquid inlet control module 200 is further configured to control the pressure relief unit to be opened, and after the pressure relief unit is opened, the liquid inlet control unit and the electric pump are controlled to be opened so that the common rail cavity starts to feed liquid through the liquid inlet path.

Optionally, the air intake control module 400 is further configured to control the pressure relief unit to be opened, and after the pressure relief unit is opened, the air pump and the air intake control unit are controlled to be opened so that the liquid in the common rail cavity is discharged and air starts to be taken in through the air intake channel.

Optionally, the gas-liquid switching system further includes a first pressure obtaining module and a liquid level height obtaining module.

The first pressure acquisition module is used for acquiring the pressure information of the common rail cavity detected by the first pressure detection piece in real time;

the liquid level height acquisition module is used for acquiring liquid level height information of the liquid storage tank detected by the liquid level detection piece in real time;

correspondingly, the liquid inlet control module 200 is further configured to determine whether the common rail cavity is full of liquid in real time based on the pressure information and the liquid level height information.

And the air inlet control module 400 is further used for determining whether the common rail cavity is full of gas in real time based on the pressure information and the liquid level height information.

Optionally, the liquid inlet control module 200 includes a rotation speed control sub-module, a liquid level reduction determination sub-module, a current obtaining sub-module, and a liquid filling determination sub-module.

The rotating speed control submodule is used for controlling the rotating speed of the electric pump in real time on the basis of the pressure information of the common rail cavity so as to keep the pressure of the common rail cavity at a preset pressure value;

the liquid level reduction determining submodule is used for determining the liquid level reduction of the water storage tank in the liquid feeding process based on the liquid level height information;

the current acquisition submodule is used for acquiring current information of the electric pump;

a liquid filling determination submodule for determining whether the current information of the electric pump is a preset current value and determining whether the liquid level reduction of the liquid storage tank is equal to the volume of the common rail cavity;

correspondingly, the liquid outlet control module 300 is further configured to control the switch sub-module to spray the liquid in the common rail cavity through the liquid outlet path based on the cleaning instruction if the current information of the electric pump is a preset current value and the liquid level reduction amount of the liquid storage tank is equal to the volume of the common rail cavity, and determine whether the liquid outlet duration of the liquid sprayed in the common rail cavity through the liquid outlet path reaches a preset first duration in real time.

Optionally, the gas-liquid switching system further includes a gas pressure control module.

The air pressure control module is used for controlling the air pressure of the air storage tank to be kept at a preset air pressure value in the air inlet process;

the intake control module 400 also includes a liquid level increase determination submodule and a charge determination submodule.

The liquid level increase determining submodule is used for determining the liquid level increase of the water storage tank based on the liquid level height information;

the inflation determining submodule is used for determining whether the pressure of the common rail cavity is a preset pressure value or not and determining whether the liquid level increase of the liquid storage tank is equal to the volume of the common rail cavity or not;

correspondingly, the air outlet control module 500 is further configured to control the switch sub-module to enable the gas in the common rail cavity to be sprayed out through the air outlet passage if the pressure of the common rail cavity is a preset pressure value and the liquid level increment of the liquid storage tank is equal to the volume of the common rail cavity.

Optionally, the air pressure control module includes an air pressure obtaining sub-module and an air pressure control sub-module.

The air pressure acquisition submodule is used for acquiring a real-time air pressure value of the air storage tank detected by the second pressure detection piece in real time;

and the air pressure control submodule is used for controlling the rotating speed of the air pump in real time based on the real-time air pressure value of the air storage tank so as to keep the real-time air pressure value of the air storage tank at a preset pressure value.

Optionally, the gas-liquid switching system further includes a safety liquid level determining module, a prohibiting module, and a liquid inlet executing module.

The safety liquid level determining module is used for determining whether the liquid level height information is smaller than a preset safety liquid level;

the forbidding module is used for forbidding execution of the step of controlling the switch submodule and the liquid supply module to enable the common rail cavity to start liquid supply through the liquid inlet circuit based on the cleaning instruction if the common rail cavity is in the liquid inlet circuit;

and the liquid inlet execution module is used for executing the step of controlling the switch submodule and the liquid supply module to enable the common rail cavity to start liquid inlet through the liquid inlet circuit based on the cleaning instruction if the common rail cavity does not start to feed liquid.

Optionally, the gas-liquid switching system further includes a self-inspection module.

And the self-checking module is used for controlling at least one of the switch submodule, the air pump and the electric pump to perform self-checking, and outputting fault information after a fault is self-checked.

Optionally, the self-test module further includes a pulse acquisition module, a fault determination module, and a fault output module.

The pulse acquisition module is used for acquiring at least the same feedback pulse signal in the switch submodule, the air pump and the electric pump;

the fault determining module is used for determining whether the pulse signal meets a preset fault rule or not;

and the fault output module is used for determining the fault and outputting fault information if the fault is detected.

Optionally, the self-test module further includes a closed control sub-module, a first pressure obtaining sub-module, a floating determination sub-module, an air leakage fault determination sub-module, and a normal determination sub-module.

The closing control submodule is used for controlling the switch submodule to be closed so as to close the common rail cavity;

the first pressure acquisition submodule is used for acquiring pressure information of the common rail cavity detected by the first pressure detection piece at multiple moments;

the floating determination submodule is used for determining whether the floating of the pressure information of the common rail cavity detected by the first pressure detection piece at multiple moments exceeds a preset floating value;

the air leakage fault determining submodule is used for determining that air leakage fault is generated and outputting fault information if the air leakage fault is generated;

and the normal determination submodule is used for self-checking if the judgment result is negative.

Optionally, the gas-liquid switching system further includes a communication module.

The communication module is used for receiving an external control instruction and/or outputting system information in real time through the CAN module and the wireless transmission module, wherein the external control instruction comprises a cleaning instruction;

Optionally, the gas-liquid switching system further includes a sensing information obtaining module, a gray level processing module, a gray level determining module, and an instruction generating module.

The system comprises a perception information acquisition module, a cleaning module and a cleaning module, wherein the perception information acquisition module is used for acquiring perception information of a component to be cleaned, and the perception information comprises camera image information;

the gray processing module is used for carrying out gray processing on the image information of the camera;

the gray level determining module is used for determining whether the average gray level of the camera image information is greater than a preset gray level value;

and the instruction generating module is used for generating a cleaning instruction if the cleaning instruction is generated.

Optionally, the gas-liquid switching system further includes a liquid temperature obtaining module, a low temperature determining module, and a heating control module.

The liquid temperature acquisition module is used for acquiring the liquid temperature in the liquid storage tank detected by the first temperature detection piece;

the low-temperature determining module is used for determining whether the temperature of the liquid in the liquid storage tank is lower than a first preset temperature or not;

and the heating control module is used for controlling the heating module to heat the liquid in the liquid storage tank if the liquid is in the liquid storage tank.

The gas-liquid switching system provided by the embodiment of the invention can execute the gas-liquid switching method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.

Example eight

FIG. 15 illustrates a schematic diagram of an electronic device 810 that can be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.

As shown in fig. 15, the electronic device 810 includes at least one processor 811, and a memory communicatively connected to the at least one processor 811, such as a Read Only Memory (ROM)812, a Random Access Memory (RAM)813, etc., where the memory stores computer programs executable by the at least one processor, and the processor 811 may perform various appropriate actions and processes according to the computer programs stored in the Read Only Memory (ROM)812 or the computer programs loaded from the storage unit 818 into the Random Access Memory (RAM) 813. In the RAM813, various programs and data required for the operation of the electronic device 810 can also be stored. The processor 811, the ROM812, and the RAM813 are connected to each other via a bus 814. An input/output (I/O) interface 815 is also connected to bus 814.

Various components in electronic device 810 are connected to I/O interface 815, including: an input unit 816 such as a keyboard, a mouse, and the like; an output unit 817 such as various types of displays, speakers, and the like; a storage unit 818, such as a magnetic disk, optical disk, or the like; and a communication unit 819, such as a network card, modem, wireless communication transceiver, or the like. The communication unit 819 allows the electronic device 810 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunications networks.

The processor 811 may be a variety of general and/or special purpose processing components with processing and computing capabilities. Some examples of processor 811 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, or the like. Processor 811 performs various methods and processes described above, such as a vehicle environmental perception component cleaning method.

In some embodiments, the vehicle context aware component cleaning method may be implemented as a computer program tangibly embodied in a computer readable storage medium, such as storage unit 818. In some embodiments, part or all of a computer program may be loaded onto and/or installed onto electronic device 810 via ROM812 and/or communications unit 819. When the computer program is loaded into RAM813 and executed by processor 811, one or more steps of the vehicle environment sensing component cleaning method described above may be performed. Alternatively, in other embodiments, processor 811 may be configured by any other suitable means (e.g., by way of firmware) to perform the vehicle environment sensing component cleaning method.

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, Field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), system on a chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.

A computer program for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be performed. A computer program can execute entirely on a machine, partly on a machine, as a stand-alone software package partly on a machine and partly on a remote machine or entirely on a remote machine or server.

In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.

The computing system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical host and VPS service are overcome.

It should be noted that, in the embodiment of the vehicle environmental sensing component cleaning device, the included units and modules are only divided according to the functional logic, but are not limited to the above division as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.

It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present invention may be executed in parallel, sequentially, or in different orders, and are not limited herein as long as the desired results of the technical solution of the present invention can be achieved.

The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas-liquid switching apparatus, characterized by comprising: the device comprises a common rail module (1), an air supply module (3), a liquid supply module (4) and a control module (5);

a common rail cavity is arranged in the common rail module (1), and the common rail cavity is provided with a liquid inlet path (11), a gas inlet path (12), a gas outlet path (13) and a liquid outlet path (14);

the liquid supply module (4) is communicated with the liquid inlet channel (11), and the gas supply module (3) is communicated with the gas inlet channel (12);

the common rail module (1) comprises a switch submodule (15), the switch submodule (15) comprises a liquid inlet control unit (151), an air inlet control unit (152), a liquid outlet control unit (153) and an air outlet control unit (154), the liquid inlet control unit (151) is used for controlling liquid inlet of the liquid inlet path (11), the air inlet control unit (152) is used for controlling air inlet of the air inlet path (12), the liquid outlet control unit (153) is used for controlling liquid outlet of the liquid outlet path (14), and the air outlet control unit (154) is used for controlling air outlet of the air outlet path (13);

control module (5) with feed liquor control unit (151), admission control unit (152) play liquid control unit (153), the control unit (154) of giving vent to anger, supply liquid module (4) with the equal electricity of air feed module (3) is connected, control module (5) are used for control feed liquor control unit (151), admission control unit (152) go out liquid control unit (153), the control unit (154) of giving vent to anger, supply liquid module (4) with air feed module (3) so that the common rail chamber switches between stock solution and gas storage.

2. The gas-liquid switching device according to claim 1, wherein the liquid outlet control unit (153) includes a plurality of liquid outlet control sub-units (1531);

the liquid outlet path (14) comprises a plurality of liquid outlet branches (141), and the liquid outlet control subunits (1531) are used for controlling the liquid outlet of the liquid outlet branches (141) in a one-to-one correspondence manner;

and/or the air outlet control unit (154) comprises a plurality of air outlet control sub-units (1541);

the gas outlet path (13) comprises a plurality of gas outlet branches (131), and the gas outlet control branch units (1541) are used for controlling the gas outlet of the gas outlet branches (131) in a one-to-one correspondence manner;

the liquid supply module (4) comprises a liquid storage tank (41) and an electric pump (42), the liquid storage tank (41) is provided with a liquid supply port, and the liquid supply port is communicated with the liquid inlet path (11) through the electric pump (42);

the control module (5) is electrically connected with the electric pump (42) and is used for controlling the working state of the electric pump (42);

the gas-liquid switching device further comprises a liquid level detection piece (411), and the liquid level detection piece (411) is used for detecting the liquid level height of the liquid storage tank (41);

the control module (5) is electrically connected with the liquid level detection piece (411) and used for acquiring the liquid level height detected by the liquid level detection piece (411).

3. The gas-liquid switching apparatus according to claim 2, further comprising a first pressure detecting member (17), the first pressure detecting member (17) being configured to detect a pressure inside the common rail chamber;

the common rail module (1) further comprises a pressure relief unit (16), the common rail cavity is provided with a backflow liquid outlet, the liquid storage tank (41) is provided with a backflow liquid inlet (412), a backflow pipeline (20) is arranged between the backflow liquid outlet and the backflow liquid inlet (412) and is communicated through the backflow pipeline (20), and the pressure relief unit (16) is used for controlling the opening and closing of the backflow pipeline (20);

the control module (5) is electrically connected with the first pressure detection piece (17) and the pressure relief unit (16) and is used for controlling the pressure relief unit (16) based on the pressure in the common rail cavity detected by the first pressure detection piece (17) so as to enable the pressure in the common rail cavity to meet a preset pressure rule;

the gas-liquid switching device further comprises a heating module (8) and a first temperature detection piece (416), wherein the first temperature detection piece (416) is arranged in the liquid storage tank (41) and is used for detecting the temperature of liquid in the liquid storage tank (41);

the heating module (8) and the first temperature detection piece (416) are both electrically connected with the control module (5), and the control module (5) is used for controlling the heating module (8) to heat the liquid in the liquid storage tank (41) based on the temperature of the liquid in the liquid storage tank (41) detected by the first temperature detection piece (416).

4. The gas-liquid switching device according to any one of claims 1 to 3, wherein the gas supply module (3) comprises a gas pump (31) and a gas storage tank (32), the gas storage tank (32) has a gas supply port, the gas supply port is communicated with the gas inlet path (12), the gas pump (31) is connected with the gas storage tank (32), and the gas pump (31) is used for controlling the gas storage tank (32) to supply gas to the gas inlet path (12);

the gas-liquid switching device further comprises a second pressure detection piece (321), wherein the second pressure detection piece (321) is used for detecting the gas pressure of the gas storage tank (32);

the control module (5) is electrically connected with the second pressure detection piece (321) and the air pump (31) and is used for acquiring the air pressure of the air storage tank (32) and controlling the working state of the air pump (31) based on the air pressure of the air storage tank (32);

and/or the control module (5) comprises a CAN module (51) and/or a wireless transmission module (52).

5. A gas-liquid switching method applied to the gas-liquid switching apparatus according to claims 1 to 4, the method comprising:

acquiring a cleaning instruction;

6. The gas-liquid switching method according to claim 5, wherein after the controlling the switch sub-module to eject the gas in the common rail chamber through the gas outlet, the method further comprises:

7. The gas-liquid switching method according to claim 5, wherein the control switch submodule and the liquid supply module enable the common rail cavity to start liquid supply through the liquid inlet path, and the method comprises the following steps:

8. The gas-liquid switching method according to any one of claims 5 to 7, wherein before the determining whether the common rail chamber is filled with the liquid in real time, further comprises:

9. The gas-liquid switching method according to claim 8,

the determining whether the common rail chamber is full of liquid in real time based on the pressure information and the liquid level height information includes:

acquiring current information of the electric pump;

if the current information of the electric pump is a preset current value and the liquid level reduction amount of the liquid storage tank is equal to the volume of the common rail cavity, controlling the switch sub-module to enable liquid in the common rail cavity to be sprayed out through a liquid outlet path based on the cleaning instruction, and determining whether the liquid outlet time of the liquid in the common rail cavity sprayed out through the liquid outlet path reaches a preset first time length in real time.

10. The gas-liquid switching method according to claim 8, wherein after controlling the switch submodule and the gas supply module to discharge the liquid in the common rail cavity and start gas supply through a gas inlet circuit, the method further comprises:

11. The gas-liquid switching method according to claim 10, wherein the controlling of the gas pressure of the gas tank during the intake process to be maintained at a preset gas pressure value includes:

12. The gas-liquid switching method according to claim 8, wherein after the obtaining of the liquid level height information of the liquid storage tank detected by the liquid level detection member in real time, the method further comprises:

13. The gas-liquid switching method according to claim 5, wherein before the controlling the switch submodule and the liquid supply module to start liquid supply of the common rail cavity through the liquid inlet path based on the cleaning instruction, the method further comprises:

14. The gas-liquid switching method according to claim 13, wherein at least one of the control switch submodule, the air pump and the electric pump is self-tested, and outputs failure information after self-testing of a failure, and the method comprises the following steps:

determining whether the pulse signal meets a preset fault rule;

if yes, determining the fault and outputting fault information.

15. The gas-liquid switching method according to claim 13, wherein at least one of the control switch submodule, the air pump and the electric pump is self-tested, and outputs failure information after self-testing of a failure, and the method comprises the following steps:

if not, the self-checking is normal.

16. The gas-liquid switching method according to claim 5, wherein before the controlling the switch submodule and the liquid supply module to start liquid supply of the common rail cavity through the liquid inlet path based on the cleaning instruction, the method further comprises:

17. The gas-liquid switching method according to claim 5, wherein before the controlling the switch submodule and the liquid supply module to start liquid supply of the common rail cavity through the liquid inlet path based on the cleaning instruction, the method further comprises:

carrying out graying processing on the image information of the camera;

if yes, a cleaning instruction is generated.

18. The gas-liquid switching method according to claim 5, wherein before the controlling the switch submodule and the liquid supply module to start liquid supply of the common rail cavity through the liquid inlet path based on the cleaning instruction, the method further comprises: