CN117145627A - Drainage device of intercooler of engine and control method thereof - Google Patents
Drainage device of intercooler of engine and control method thereof Download PDFInfo
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- CN117145627A CN117145627A CN202311399228.8A CN202311399228A CN117145627A CN 117145627 A CN117145627 A CN 117145627A CN 202311399228 A CN202311399228 A CN 202311399228A CN 117145627 A CN117145627 A CN 117145627A
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- intercooler
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000004140 cleaning Methods 0.000 claims abstract description 38
- 230000006698 induction Effects 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 230000000630 rising effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
- F02B29/0468—Water separation or drainage means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The application discloses a drainage device of an intercooler of an engine and a control method thereof, wherein the drainage device comprises a liquid storage barrel, an electric control valve, a drainage sensor, a floating ball and a control module, when the floating ball is in contact with the drainage sensor arranged at a water inlet of the liquid storage barrel along with the rising of a liquid level, the drainage sensor generates a signal and sends the signal to the control module, and after the control module receives the signal, the electric control valve is controlled to be opened to drain when the signal of the engine meets a cleaning condition, so that the problems that condensed water enters a cylinder along with air flow, the combustion of the engine is deteriorated and the reliability of the engine is further influenced are avoided.
Description
Technical Field
The application belongs to the technical field of vehicle engines, and particularly relates to a drainage device of an intercooler of an engine and a control method of the drainage device.
Background
After the supercharged engine is supercharged, condensed water is easy to generate in the inlet air through an intercooler, especially under the conditions of overcast and rainy days, rivers, lakes, seas and the like with high air humidity. If the condensed water is not discharged in time, the condensed water enters the cylinder along with the airflow, and the problems of deterioration of engine combustion and further influence on the reliability of the engine occur.
In order to solve the above-mentioned problems, there is a need for a device capable of discharging condensed water in an intercooler of an engine.
Disclosure of Invention
In view of the above, the present application provides a drainage device for an intercooler of an engine and a control method thereof, which aim to drain condensed water in the intercooler of the engine, so as to avoid the problems that the condensed water enters a cylinder along with air flow, engine combustion is deteriorated, and engine reliability is further affected.
In order to solve the problems, the application provides the following scheme:
a drainage device of an intercooler of an engine comprises a liquid storage barrel, an electric control valve, a drainage sensor, a floating ball and a control module;
when the floating ball rises along with the liquid level and touches the drainage sensor arranged at the water inlet of the liquid storage barrel, the drainage sensor generates a signal and sends the signal to the control module;
and after the control module receives the signal, the control module controls the electric control valve to be opened when the running state of the engine meets the cleaning condition so as to drain water.
Optionally, the floating ball is made of conductive materials, and the diameter of the floating ball is larger than the caliber of the water inlet of the liquid storage barrel.
Optionally, the control module is an electronic control unit ECU.
Optionally, the drainage inductor is an induction electrode arranged at the water inlet of the liquid storage barrel.
A control method of a drainage device of an intercooler of an engine is applied to a control module and comprises the following steps:
when the liquid level of the liquid storage barrel reaches a set liquid level, receiving a signal generated by the contact of the floating ball with the drainage sensor;
judging whether the running state of the engine meets the preset cleaning condition of the condensed water;
and if the cleaning condition is met, sending a valve opening signal to the electric control valve so that the electric control valve can drain the water in the liquid storage barrel within a preset time.
Optionally, the drainage sensor is an induction electrode, and the receiving signal generated by the floating ball touching the drainage sensor includes:
the control module receives the signal generated by the floating ball conducting the induction electrode.
Optionally, the cleaning condition is a condition pre-selected or set by a user, including any one or a combination of the engine being in a low speed and low load state, and the intake air pressure being below a preset threshold.
Optionally, the preset time for each opening of the electric control valve is set according to the volume of the liquid storage barrel, so as to ensure that the condensed water in the liquid storage barrel can be completely discharged before the electric control valve is closed.
According to the scheme, the drainage device of the intercooler of the engine and the control method thereof disclosed by the application comprise the liquid storage barrel, the electric control valve, the drainage sensor, the floating ball and the control module, when the floating ball is in contact with the drainage sensor arranged at the water inlet of the liquid storage barrel along with the rising of the liquid level, the drainage sensor generates a signal and sends the signal to the control module, and after the control module receives the signal, the electric control valve is controlled to be opened for drainage when the signal of the engine meets the cleaning condition, so that the problems that condensed water enters the air cylinder along with the air flow, the engine combustion is deteriorated and the reliability of the engine is further influenced are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram showing an example of connection between a drain device and an intercooler of an engine intercooler provided by the present application;
FIG. 2 is an exemplary diagram of a drain arrangement for an intercooler of an engine provided by the present disclosure;
FIG. 3 is an exemplary diagram of a drain clearance for an intercooler of an engine according to the present disclosure;
FIG. 4 is an exemplary diagram of a drain trap condition of an intercooler of an engine provided by the present application;
FIG. 5 is a flow chart of a method of controlling a drain of an intercooler of an engine;
fig. 6 is a flowchart illustrating a control method of a drain device of an intercooler of an engine according to the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The term "including" and variations thereof as used herein are intended to be open-ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments. Related definitions of other terms will be given in the description below.
It should be noted that the terms "first," "second," and the like herein are merely used for distinguishing between different devices, modules, or units and not for limiting the order or interdependence of the functions performed by such devices, modules, or units.
It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those skilled in the art will appreciate that "one or more" is intended to be construed as "one or more" unless the context clearly indicates otherwise.
Condensed water is easy to generate when the air after the engine is pressurized passes through the intercooler, and if the condensed water is not timely discharged, the condensed water enters the cylinder along with the air flow, so that the combustion of the engine is deteriorated, and the reliability of the engine is further affected. Therefore, there is a need for a drain device capable of draining condensed water in an intercooler of an engine and a control method thereof.
The application provides a drainage device of an intercooler of an engine and a control method thereof, which can collect condensed water, automatically judge whether the condensed water is cleaned or not, and further judge whether the engine meets the cleaning condition of the condensed water or not, thereby realizing automatic cleaning of the condensed water.
The application discloses a drainage device of an intercooler of an engine, which mainly comprises a liquid storage barrel, an electric control valve, a drainage sensor, a floating ball and a control module.
The intercooler functions to improve the combustion efficiency of the turbocharger system, thereby enhancing the power of the engine. Specifically, reducing the temperature of the hot air compressed by the turbocharger before it reaches the combustion chamber of the engine significantly increases the efficiency of the turbocharger, as the cold air density is higher, and therefore the air per unit volume becomes more.
Optionally, the liquid storage barrel can be arranged at the bottom of the intercooler and can also be arranged at the side surface of the intercooler, so long as the water inlet of the liquid storage barrel is communicated with the water outlet of the intercooler. Of course, the optimal positional relationship between the liquid storage barrel and the intercooler is that the liquid storage barrel is positioned at the bottom of the intercooler. Referring to fig. 1, an exemplary diagram of a drain device of an intercooler and a connection of an intercooler of an engine is provided.
As shown in figure 1, the water inlet of the device is connected with the water outlet of the intercooler and is positioned at the lowest part of the intercooler, so that the condensate water can be ensured to smoothly flow into the drainage device.
The engine intercooler of the application also comprises an electric control valve, a floating ball, a drainage sensor and a control module. The floating ball can float up and down freely along with the liquid level in the liquid storage barrel, and the diameter of the floating ball is larger than the caliber of the water inlet of the liquid storage barrel. The drain sensor may be a pressure sensor, or a current sensor, or the like. Optionally, when the floater rises to the settlement liquid level along with the liquid level, touch the drainage sensor after, the drainage sensor can send the signal to control module, and after control module received the signal, can control the automatically controlled valve and carry out the drainage after further judging engine state satisfies the clearance condition.
Specifically, the floating ball can be made of conductive materials, and the diameter of the floating ball is larger than that of a water inlet aperture of the liquid storage barrel, and the floating ball is made of the best metal material, specifically steel hollow balls. The drainage sensor can be an induction electrode arranged at the water inlet in the liquid storage barrel, the control module can be an electronic control unit ECU (Electronic Control Unit), the ECU is an electronic device or a microcomputer for monitoring and controlling mechanical devices such as an engine, an automobile and the like, and is responsible for receiving sensor signals and adjusting the performance of the engine according to a preset program. The ECU is hardware of an electronic control type engine, and a control strategy or a control program of the ECU is of a complexity type.
Alternatively, referring to FIG. 2, an exemplary diagram of a drain arrangement for an intercooler of an engine is provided.
The device comprises an induction electrode 1, a liquid storage barrel 2, a floating ball 3 and an electric control valve 4. The sensing electrode 1 includes a sensing electrode a and a sensing electrode B. The floating ball 3 is lifted along with the lifting of the liquid level, when the liquid level of the condensed water is higher, the floating ball 3 touches the sensing electrode A and the sensing electrode B at the top end of the liquid storage barrel 2, and the liquid level that the floating ball 3 touches the sensing electrode 1 can be guaranteed to be understood as the set liquid level. Correspondingly, referring to fig. 3, an exemplary diagram of a cleaning state of a drain device of an intercooler of an engine is provided. As shown in fig. 3, the float ball turns on the sensing electrode a and the sensing electrode B, generates a signal, and transmits the signal to the ECU, and the signal triggers a cleaning request of the condensed water. Accordingly, referring to fig. 4, an exemplary diagram of a collection state of a drain device of an intercooler of an engine according to the present application is shown in fig. 4, and a state when a floating ball does not touch an induction electrode is referred to as a collection state of the drain device of the intercooler of the engine.
It should be noted that the size of the floating ball is identical with the design of the liquid storage barrel: the floating ball can freely float up and down along with the liquid level in the liquid storage barrel; in order to ensure that the floating ball can be clamped between the sensing electrode A and the sensing electrode B to realize the conduction function after floating upwards, the diameter of the floating ball is not smaller than the necking at the upper end of the liquid storage barrel. The conduction between the floating ball and the sensing electrode A and the sensing electrode B is equivalent to the switching function (0 and 1) of the device for draining, and after the floating ball is clamped between the sensing electrode A and the sensing electrode B to realize conduction, a conduction signal 1 is sent to the ECU, and in the electric control logic, the ECU is equivalent to receiving a cleaning request of condensed water. When the floating ball does not touch the sensing electrode A and the sensing electrode B, the draining function of the device is equivalent to being not opened.
Corresponding to the drainage device of the engine intercooler, the application provides a control method of the drainage device of the engine intercooler, and referring to fig. 5, a flow chart of the control method of the drainage device of the engine intercooler is shown.
And 101, when the liquid level of the liquid storage barrel reaches a set liquid level, receiving a signal generated by the fact that the floating ball touches the drainage sensor.
It should be noted that, the control method of the drainage device of the intercooler of the engine provided by the application is applied to the control module:
optionally, when the liquid level of the liquid storage barrel reaches the set liquid level, the control module receives a signal generated by the floating ball touching the drainage sensor. Specifically, when the liquid level of the liquid storage barrel reaches the set liquid level, the liquid level in the liquid storage barrel reaches the set liquid level and can be understood as the fact that the floating ball touches the drainage sensor, and at the moment, the drainage sensor can send a cleaning signal of condensed water to the control module. The control module may be an ECU in the engine.
Step 102, judging whether the running state of the engine meets the preset cleaning condition of the condensed water.
Optionally, the control module may further determine whether the state of the engine meets a cleaning condition for condensed water. Specifically, the cleaning condition may be any one condition or a combination of conditions that the transmitter is in a low-speed low-load state or that the intake air pressure is lower than a preset threshold.
The cleaning conditions can be used as calibratable options in the electric control logic, and can be preselected or set by a user, and the setting principle of the cleaning conditions is that the condensate water can be cleaned in time and the operation of the engine cannot be affected unacceptably in the process of cleaning the condensate water.
In the cleaning condition, the intake pressure below the preset threshold may be lower than 110kPa, and the preset threshold may be other values, not an absolutely accurate and fixed value, and the data may be used as a calibratable term in the electronic control logic, and the specific value may be further determined according to the characteristics of the engine, so as to satisfy the rule set by the cleaning condition.
It should be noted that the rotation speed of the engine, the load factor of the engine (the duty ratio corresponding to the maximum capacity, for example, a capacity of 10% as we say in general), the intake pressure, and the like may be used as parameters for setting the purge condition. The setting of the cleaning conditions can be flexibly changed according to actual conditions.
Specifically, the reason for selecting the engine in the low speed and low load state as the cleaning condition is that: the potential risk in the process of draining condensed water is that the loss of air bleed of air inflow can occur, so that the device is required to ensure that air bleed is caused in the process of draining water, but the discharged air cannot have larger unacceptable influence on the operation of the engine. Therefore, from the perspective of the engine, in the case where the engine is in a low speed, low load condition, and the intake pressure itself is relatively low, the bleed air does not have a great unacceptable effect on the operation of the engine. Therefore, the engine is selected to discharge condensed water under the above conditions. In contrast, if the state of the engine does not meet the cleaning condition during the water discharge process, the amount of air discharged into the engine is reduced correspondingly, further, the combustion of the engine is deteriorated, and the performance of the engine is deteriorated.
Step 103, if the cleaning condition is met, sending a valve opening signal to the electric control valve so that the electric control valve can drain the water in the liquid storage barrel within a preset time.
Optionally, when the state of the engine meets the cleaning condition, the control module sends a valve opening signal to the electric control valve to drain water.
It should be noted that the electrically controlled valve may be a solenoid valve. The default state of the electromagnetic valve of the device is a closed state, and the electromagnetic valve is provided with a positive power supply wiring and a negative power supply wiring for controlling a switch and a signal wire for controlling a signal. When the running state of the engine meets the cleaning condition, the ECU sends a control signal to the electromagnetic valve through the signal wire, and at the moment, the electromagnetic valve can open the valve, so that condensed water can be discharged. The time for opening the electromagnetic valve each time is preset according to the volume of the liquid storage barrel, so that the condensed water in the liquid storage barrel can be completely discharged within the preset time. For example, the preset starting time of the solenoid valve is 20s, after the solenoid valve receives the valve opening signal sent by the ECU, the ECU continuously opens the valves 20s, and then sends a control signal to the solenoid valve through the signal line to control the solenoid valve to close, and waits for the triggering of the next opening signal.
Referring to fig. 6, an exemplary flow chart of a control method for a drain device of an intercooler of an engine according to the present application is shown in the following:
the floating ball rises to touch the sensing electrodes A and B to trigger a request, the request is sent to the ECU, the ECU waits after receiving the request, whether the operation condition of the engine meets the cleaning requirement is further judged, and when the cleaning requirement is not met, the ECU returns to a waiting state and does not send a control signal; when the operation condition of the engine meets the cleaning requirement, the ECU can control the electric valve to be opened to drain the condensed water in the liquid storage barrel, and then the ECU can control the electric valve to be closed to finish the whole drainage process.
In summary, according to the control method of the drainage device of the intercooler of the engine disclosed by the application, when the liquid level of the liquid storage barrel reaches the set liquid level, the control module receives the signal generated by the contact of the floating ball with the drainage sensor, judges whether the running state of the engine meets the cleaning condition of preset condensed water, and if the running state of the engine meets the cleaning condition, sends a valve opening signal to the electric control valve so as to enable the electric control valve to drain the water in the liquid storage barrel within the preset time, thereby avoiding the problems that the condensed water enters the cylinder along with the air flow, the combustion of the engine is deteriorated and the reliability of the engine is further influenced.
The method realizes automatic identification of condensate water cleaning requirements and automatic cleaning, can realize automatic cleaning under the state that the engine is not stopped, and has reliable operation and high automation degree.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
For convenience of description, the above system or apparatus is described as being functionally divided into various modules or units, respectively. Of course, the functions of each element may be implemented in the same piece or pieces of software and/or hardware when implementing the present application.
From the above description of embodiments, it will be apparent to those skilled in the art that the present application may be implemented in software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the embodiments or some parts of the embodiments of the present application.
Finally, it is further noted that relational terms such as first, second, third, fourth, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.
Claims (8)
1. The drainage device of the intercooler of the engine is characterized by comprising a liquid storage barrel, an electric control valve, a drainage sensor, a floating ball and a control module;
when the floating ball rises along with the liquid level and touches the drainage sensor arranged at the water inlet of the liquid storage barrel, the drainage sensor generates a signal and sends the signal to the control module;
and after the control module receives the signal, the control module controls the electric control valve to be opened when the running state of the engine meets the cleaning condition so as to drain water.
2. The drainage device of an intercooler of an engine according to claim 1, wherein the floating ball is made of conductive material and is a hollow ball with a diameter larger than the caliber of the water inlet of the liquid storage barrel.
3. The drain device of an engine intercooler according to claim 1, wherein the control module is an electronic control unit ECU.
4. The drain device of an intercooler of an engine of claim 1, wherein the drain inductor is an induction electrode disposed at a water inlet of the liquid storage tub.
5. A control method of a drain device of an intercooler of an engine, which is applied to a control module, comprising:
when the liquid level of the liquid storage barrel reaches a set liquid level, receiving a signal generated by the contact of the floating ball with the drainage sensor;
judging whether the running state of the engine meets the preset cleaning condition of the condensed water;
and if the cleaning condition is met, sending a valve opening signal to the electric control valve so that the electric control valve can drain the water in the liquid storage barrel within a preset time.
6. The method of controlling a drain of an intercooler of an engine according to claim 5, wherein the drain sensor is a sensing electrode, and the receiving a signal generated by the floating ball touching the drain sensor includes:
the control module receives the signal generated by the floating ball conducting the induction electrode.
7. The method according to claim 5, wherein the cleaning condition is a condition selected or set by a user in advance, including any one or a combination of the engine being in a low speed and low load state and an intake air pressure being lower than a preset threshold.
8. The control method of draining device of engine intercooler according to claim 5, wherein the preset time for each opening of the electric control valve is set according to the volume of the liquid storage tank, so as to ensure that the condensed water in the liquid storage tank can be completely drained before the electric control valve is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311399228.8A CN117145627A (en) | 2023-10-26 | 2023-10-26 | Drainage device of intercooler of engine and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311399228.8A CN117145627A (en) | 2023-10-26 | 2023-10-26 | Drainage device of intercooler of engine and control method thereof |
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| CN117145627A true CN117145627A (en) | 2023-12-01 |
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| CN113404587A (en) * | 2021-07-12 | 2021-09-17 | 北京华鼎电源集团有限公司 | Automatic drainage device of natural gas engine intercooler |
| CN216342432U (en) * | 2021-09-23 | 2022-04-19 | 潍柴动力股份有限公司 | Intercooler, engine assembly and vehicle |
| CN113969827A (en) * | 2021-11-01 | 2022-01-25 | 一汽解放汽车有限公司 | Drainage device and intercooler |
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