CN117307311A - Redundant air supplementing system of engine - Google Patents

Redundant air supplementing system of engine Download PDF

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Publication number
CN117307311A
CN117307311A CN202311282012.3A CN202311282012A CN117307311A CN 117307311 A CN117307311 A CN 117307311A CN 202311282012 A CN202311282012 A CN 202311282012A CN 117307311 A CN117307311 A CN 117307311A
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CN
China
Prior art keywords
pressure
air
engine
value
controlling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311282012.3A
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Chinese (zh)
Inventor
徐明月
颜鲁
张桂芹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weichai Power Co Ltd
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Weichai Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weichai Power Co Ltd filed Critical Weichai Power Co Ltd
Priority to CN202311282012.3A priority Critical patent/CN117307311A/en
Publication of CN117307311A publication Critical patent/CN117307311A/en
Pending legal-status Critical Current

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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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/32—Engines with pumps other than of reciprocating-piston type
    • F02B33/34—Engines with pumps other than of reciprocating-piston type with rotary pumps
    • F02B33/40—Engines with pumps other than of reciprocating-piston type with rotary pumps of non-positive-displacement type
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • 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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/02—Gas passages between engine outlet and pump drive, e.g. reservoirs
    • 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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D23/00—Controlling engines characterised by their being supercharged

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

The application provides a redundant air supplement system of engine, air supplement system includes: the system comprises a gas compression device, a first pressure sensor, a second pressure sensor, a third pressure sensor, an engine, a blower device, a smoke testing device and a controller, wherein the controller is used for executing the following steps: controlling smoke intensity testing equipment to detect smoke intensity of exhaust gas output by an engine, and controlling a first pressure sensor to detect pressure of a first connecting pipeline under the condition that at least one of smoke intensity value and load increase rate of the engine is larger than a corresponding air supplementing threshold value; controlling the gas compression device to be started to supplement air to the engine under the condition that the first pressure value is larger than a first pressure threshold value; controlling a second pressure sensor to detect the pressure in the input pipeline; under the condition that the second pressure value is smaller than or equal to the second pressure threshold value, the blower device is controlled to be started to supplement air for the engine, and the system solves the problem that different air supplementing modes are required under different load conditions in the prior art.

Description

Redundant air supplementing system of engine
Technical Field
The application relates to the field of engines, in particular to an engine redundant air supplementing system and a vehicle.
Background
When a large ship engine is used for loading and unloading cargoes by port or in an operation area, the large ship engine needs to be frequently detached and combined, and sometimes sudden load is caused. At this time, the supercharger on the engine can not timely provide enough air for combustion under the working conditions of closing and sudden loading, and the engine emits black smoke, so that the air supplementing measures can be added when the engine is designed, and the existing air supplementing methods have multiple kinds, and commonly have two kinds of high-pressure air supplementing and air supplementing of an air blower. However, the prior art cannot meet different air supply modes under different load conditions.
Therefore, there is a need for an air-supplementing device that can solve the problem that the prior art cannot meet different air-supplementing modes under different load conditions.
Disclosure of Invention
The main aim of the application is to provide an engine redundant air supplementing system and a vehicle, so as to at least solve the problem that different air supplementing modes are required under different load conditions in the prior art.
According to an aspect of the present application, there is provided a gas supplementing system including a gas compression device, a first pressure sensor, a second pressure sensor, a third pressure sensor, an engine, a blower device, a smoke level testing device and a controller, wherein the engine has an input pipeline and an output pipeline, the gas compression device is communicated with the input pipeline through a first connecting pipeline, the first pressure sensor is disposed near one end of the gas compression device, the second pressure sensor is disposed in the input pipeline, the blower device is communicated with the input pipeline through a second connecting pipeline, the third pressure sensor is disposed near one end of the blower device through a second connecting pipeline, the smoke level testing device is communicated with the engine through the output pipeline, the controller is configured to perform: controlling the smoke intensity testing equipment to detect the smoke intensity of the exhaust gas output by the engine to obtain a smoke intensity value, and receiving the smoke intensity value and the load increase rate of the engine; determining whether at least one of the smoke intensity value and the load increase rate of the engine is greater than a corresponding air supplementing threshold value, controlling the first pressure sensor to detect the pressure of the first connecting pipeline under the condition that the at least one of the smoke intensity value and the load increase rate of the engine is greater than the corresponding air supplementing threshold value, obtaining a first pressure value, and determining whether the first pressure value is greater than the first pressure threshold value; controlling the gas compression device to be started to supplement air to the engine under the condition that the first pressure value is larger than the first pressure threshold value; controlling the second pressure sensor to detect the pressure in the input pipeline to obtain a second pressure value; and under the condition that the second pressure value is smaller than or equal to a second pressure threshold value, controlling the opening of the blower equipment to supplement air to the engine.
Optionally, the air supplementing system further includes a first valve, the first valve is disposed on the first connection line between the gas compression device and the engine, and controls the gas compression device to be opened to supplement air to the engine, including: the first valve is controlled to open to cause the gas compression apparatus to open to replenish the engine.
Optionally, the air supplementing system further includes a second valve, the second valve is disposed on the second connection line between the blower device and the third pressure sensor, and controls the blower device to be turned on to supplement air to the engine, including: and controlling the second valve to be opened so that the blower device supplements air for the engine.
Optionally, the air supplementing system further comprises a third valve, the air compressing device comprises an air compressor and an air storing device, the air storing device is directly connected with the first connecting pipeline, the third valve is arranged on a third connecting pipeline between the air compressor and the air storing device, and the controller is further used for executing: controlling the third valve to open to make the air compressor supplement air to the air storage device when the first pressure value is smaller than or equal to the first pressure threshold value; controlling the first pressure sensor to detect a first connecting pipeline after air supplement to obtain a third pressure value; determining whether the third pressure value is greater than a third pressure threshold, and controlling the third valve to close to stop the air compressor from replenishing air to the air storage device if the third pressure value is greater than the third pressure threshold.
Optionally, the air supplementing system further includes a fourth valve disposed on the second connection line between the engine and the third pressure sensor, and the controller is further configured to perform: and controlling the fourth valve to work to prevent the gas in the input pipeline from flowing back into the second connecting pipeline under the condition that the second pressure value is larger than a fourth pressure threshold value.
Optionally, the controller is further configured to perform: and controlling the blower device not to be started under the condition that the second fourth pressure value is larger than the second pressure threshold value.
Optionally, the air supplementing system further includes a supercharging device disposed between the smoke testing device and the engine, the supercharging device being in communication with the inlet of the input line through a third connecting line, the controller further being configured to perform: in the case where the amount of exhaust gas of the engine increases, the rotation speed of the supercharging device is controlled to increase.
Optionally, after controlling the blower device to be turned on to supplement air to the engine, the controller is further configured to perform: controlling the third pressure sensor to detect the pressure in the second connecting pipeline to obtain a fourth pressure value; determining whether the fourth pressure value is larger than a fifth pressure threshold value, and determining that the blower device fails and outputting a failure signal under the condition that the fourth pressure value is smaller than or equal to the fifth pressure threshold value.
Optionally, the controller is further configured to perform: and controlling the gas compression equipment and the blower equipment not to be started under the condition that one of the smoke intensity value and the load increasing rate of the engine is smaller than or equal to a corresponding air supplementing threshold value.
According to another aspect of the present application, there is provided a vehicle comprising any one of the air make-up systems described.
The application of the technical scheme of this application provides a redundant air make-up system of engine, and this air make-up system includes gas compression equipment, first pressure sensor, second pressure sensor, third pressure sensor, engine, blast apparatus, smoke intensity test equipment and controller, and the controller is used for carrying out: the smoke intensity testing equipment is controlled to detect the smoke intensity of the exhaust gas output by the engine, a smoke intensity value is obtained, and the smoke intensity value and the load increase rate of the engine are received; determining whether at least one of the smoke intensity value and the load increase rate of the engine is greater than a corresponding air supplementing threshold value, controlling a first pressure sensor to detect the pressure of a first connecting pipeline under the condition that the at least one of the smoke intensity value and the load increase rate of the engine is greater than the corresponding air supplementing threshold value, obtaining a first pressure value, and determining whether the first pressure value is greater than the first pressure threshold value; controlling the gas compression device to be started to supplement air to the engine under the condition that the first pressure value is larger than a first pressure threshold value; controlling a second pressure sensor to detect the pressure in the input pipeline to obtain a second pressure value; and under the condition that the second pressure value is smaller than or equal to the second pressure threshold value, controlling the opening of the blower equipment to supplement air to the engine. According to the air supplementing system, the air compression equipment and the air blowing equipment are respectively connected to the input pipeline of the engine, the real-time air supplementing working condition and the service life of an actual part are determined through the first pressure sensor, the second pressure sensor and the third pressure sensor, the advantages and disadvantages of two different air supplementing modes are combined, the two different air supplementing modes are adopted under different conditions, and the problem that different air supplementing modes are required under different load conditions in the prior art can not be met is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 shows a block diagram of an air make-up system provided in accordance with an embodiment of the present application;
FIG. 2 shows a flow diagram of a method performed by a controller provided in accordance with an embodiment of the present application;
FIG. 3 illustrates a block diagram of another air make-up system provided in accordance with an embodiment of the present application;
FIG. 4 shows a schematic diagram of a flow of gas make-up for a gas compression apparatus provided in accordance with an embodiment of the present application;
FIG. 5 illustrates a block diagram of still another air make-up system provided in accordance with an embodiment of the present application;
fig. 6 shows a specific flowchart of a method performed by a controller according to an embodiment of the present application.
Wherein the above figures include the following reference numerals:
110. a gas compression device; 112. a blower device; 114. an engine; 116. a first pressure sensor; 118. a second pressure sensor; 120. a third pressure sensor; 122. a first connecting line; 124. an input pipeline; 126. a second connecting pipeline; 128. an output line; 130. smoke intensity testing equipment; 132. a controller; 134. a first valve; 136. a second valve; 138. a third valve; 140. an air compressor; 142. an air storage device; 144. a third connecting pipeline; 146. a fourth valve; 148. a supercharging device.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application 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.
As described in the background art, in order to solve the problem that the air supply amount of a single air source of an engine is insufficient in the prior art, an embodiment of the present application provides an air supply system and a vehicle.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In this embodiment, as shown in fig. 1, there is provided an engine redundancy air supplementing system, which includes a gas compression device 110, a first pressure sensor 116, a second pressure sensor 118, a third pressure sensor 120, an engine 114, a blower device 112, a smoke testing device 130, and a controller 132, wherein the engine 114 has an input pipe 124 and an output pipe 128, the gas compression device 110 is in communication with the input pipe 124 through a first connecting pipe 122, the first pressure sensor 116 is disposed at an end of the first connecting pipe 122 near the gas compression device 110, the second pressure sensor 118 is disposed in the input pipe 124, the blower device 112 is in communication with the input pipe 124 through a second connecting pipe 126, the third pressure sensor 120 is disposed at an end of the second connecting pipe 126 near the blower device 112, and the smoke testing device 130 is in communication with the engine 114 through the output pipe 128.
Specifically, the above-mentioned gas compression equipment can realize high-pressure air supply, and above-mentioned air-blowing equipment can realize the air-blower tonifying qi, and high-pressure air supply and air-blower tonifying qi have different advantages and disadvantages, and high-pressure air supply is in directly feeding the intake pipe with high-pressure air for assisting the burning. Exhaust gas generated after combustion blows the supercharger turbine, thereby increasing the supercharger rotation speed. The air supplementing method is to take air from an air bottle on a ship, wherein the air bottle is simultaneously used for a starting motor of an engine and used for starting the engine. The air supplementing method has the advantages that the pressure is high, generally 30bar, and the air supplementing method is not limited by the current pressure of an air inlet pipe of an engine. The disadvantage is limited by the volume of the air bottle and the number of times of air supplement. The electric blower is arranged at the end of the air inlet pipe, and the rotor rotates to blow air in the cabin into the air inlet channel after the electric blower is electrified. The advantages are no limitation of the air supply, and unlimited air supply. The disadvantage is that the pressure of the air supply is small, if the pressure ratio of the air inlet channel is larger during the air supply, the air flow can flow back, thereby damaging the blower, and therefore, a one-way valve is generally arranged behind the blower. The first pressure sensor, the second pressure sensor, and the third pressure sensor may be strain type pressure sensors, piezoresistive type pressure sensors, capacitive type pressure sensors, or piezoelectric type pressure sensors.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein.
Fig. 2 is a flowchart of a method performed by a controller according to an embodiment of the present application. As shown in fig. 2, the method comprises the steps of:
step S201, controlling the smoke intensity testing device to detect the smoke intensity of the exhaust gas output by the engine to obtain a smoke intensity value, and receiving the smoke intensity value and the load increase rate of the engine;
specifically, the smoke intensity testing device is used for measuring the real-time exhaust smoke intensity of the engine, and when the smoke intensity value exceeds the visible smoke intensity set value, the exhaust is black visible smoke. The load increase rate is the ratio of the load increased by the engine to the rated load in unit time, the unit time can be 500ms or 1s, and the load increase rate can be set by a person skilled in the art according to the requirements.
Step S202, determining whether at least one of the smoke intensity value and the load increase rate of the engine is greater than a corresponding air supplement threshold value, controlling the first pressure sensor to detect the pressure of the first connecting pipeline to obtain a first pressure value, and determining whether the first pressure value is greater than a first pressure threshold value when at least one of the smoke intensity value and the load increase rate of the engine is greater than the corresponding air supplement threshold value;
Specifically, the load increase rate and the smoke intensity value can meet different use requirements of different users. In the case that the user is concerned about black smoke of the ship, the smoke level can be adopted as an air supplementing starting factor. In the case where the user is concerned about the responsiveness of the engine, if the engine is expected to respond quickly when loaded, the load increase rate may be employed as an air make-up start factor. The air supplementing threshold value corresponding to the smoke intensity value can be 1-1.5 FSN, and the air supplementing threshold value corresponding to the load increasing rate can be 5% -10%.
Step S203, controlling the gas compression device to be started to supplement air to the engine when the first pressure value is larger than the first pressure threshold value;
specifically, the first pressure value is a pressure value of the outlet of the gas compression apparatus, and the first pressure threshold may be 10 to 15bar.
Step S204, controlling the second pressure sensor to detect the pressure in the input pipeline to obtain a second pressure value;
specifically, the second pressure value is actually the pressure value of the engine air inlet, and since the electric blower device needs the maximum number of starts per unit time to prevent overheating, the air supplementing strategy preferably adopts the air compression device for air supplementing. When the pressure of the gas cylinder is lower than the lowest protection pressure value, whether the air blowing device has air supplementing conditions or not is judged.
Step S205, when the second pressure value is less than or equal to a second pressure threshold value, the blower is controlled to be turned on to supplement air to the engine.
Specifically, the second pressure threshold may be 1-2 bar, in fact, the second pressure threshold is the stable pressure of the air passage after the blower device is opened, and the above manner may be applicable to different working conditions of the engine, for example: the engine is idle and is in exhaust combination, at the moment, the exhaust combination load is lighter, the gas compression equipment can meet the smoke intensity value or the load increase rate factor, and if the first pressure value is smaller, the air blowing equipment can also meet the requirement; the method comprises the steps that when the middle load of an engine is idle, the load of the combined exhaust is moderate, and after the gas compression equipment is started, if smoke intensity value or load increase rate factor is still not met, and a first pressure value is lower than a first pressure threshold value, the air blowing equipment is started; when the engine is fully loaded and idling and is in row, and the load is heavier, the air compression equipment is started to the lowest first pressure value, and then the air blowing equipment is started; the engine runs at a low speed for a long time, the load is heavy, and after the gas compression equipment is started to the first pressure value which is the lowest, the blast equipment is started; the engine is suddenly loaded at a high speed, and at the moment, the air is supplemented by directly adopting the air compression equipment because the pressure of an input pipeline of the engine is higher.
Through this embodiment, there is provided an air supplementing system including a gas compression device, a first pressure sensor, a second pressure sensor, a third pressure sensor, an engine, a blower device, a smoke intensity test device, and a controller for executing: the smoke intensity testing equipment is controlled to detect the smoke intensity of the exhaust gas output by the engine, a smoke intensity value is obtained, and the smoke intensity value and the load increase rate of the engine are received; determining whether at least one of the smoke intensity value and the load increase rate of the engine is greater than a corresponding air supplementing threshold value, controlling a first pressure sensor to detect the pressure of a first connecting pipeline under the condition that the at least one of the smoke intensity value and the load increase rate of the engine is greater than the corresponding air supplementing threshold value, obtaining a first pressure value, and determining whether the first pressure value is greater than the first pressure threshold value; controlling the gas compression device to be started to supplement air to the engine under the condition that the first pressure value is larger than a first pressure threshold value; controlling a second pressure sensor to detect the pressure in the input pipeline to obtain a second pressure value; and under the condition that the second pressure value is smaller than or equal to the second pressure threshold value, controlling the opening of the blower equipment to supplement air to the engine. According to the air supplementing system, the air compression equipment and the air blowing equipment are respectively connected to the input pipeline of the engine, the real-time air supplementing working condition and the service life of an actual part are determined through the first pressure sensor, the second pressure sensor and the third pressure sensor, the advantages and disadvantages of two different air supplementing modes are combined, the two different air supplementing modes are adopted under different conditions, and the problem that different air supplementing modes are required under different load conditions in the prior art can not be met is solved.
In a specific implementation, as shown in fig. 3, the air supply system further includes a first valve 134, where the first valve 134 is disposed on the first connecting line 122 between the gas compression device 110 and the engine 114, and the step S204 may be implemented by: the first valve is controlled to open the gas compression apparatus to replenish the engine. The system is provided with the first valve, so that the gas compression equipment is rapidly controlled to supplement gas.
In particular, the first valve may be a solenoid valve for controlling the gas compression apparatus to replenish the gas,
in order to further improve the air supplementing efficiency of the blower apparatus, as shown in fig. 3, the air supplementing system further includes a second valve 136, the second valve 136 is disposed on the second connecting line 126 between the blower apparatus 112 and the third pressure sensor 120, and the step S205 of the present application may be implemented by: and controlling the second valve to open so that the blower device supplements air to the engine.
In particular, the second valve may be a shut-off valve, which may be used for air make-up at low loads of the marine engine (engine in line with the gearbox or below 25% load) due to the relatively low outlet pressure of the electric blower.
As shown in fig. 3, the air supply system further includes a third valve 138, the air compression device 110 includes an air compressor 140 and an air storage device 142, the air storage device 142 is directly connected to the first connection line 122, the third valve 138 is disposed on a third connection line 144 between the air compressor 140 and the air storage device 142, and the controller 132 is further configured to perform: step S206, when the first pressure value is less than or equal to the first pressure threshold value, controlling the third valve to open so as to make the air compressor supplement air to the air storage device; step S207, controlling the first pressure sensor to detect the first connection pipe after the air supplement to obtain a third pressure value; step S208, determining whether the third pressure value is greater than a third pressure threshold value, and if the third pressure value is greater than the third pressure threshold value, controlling the third valve to close so that the air compressor stops supplying air to the air storage device. The gas compression equipment in the system consists of the air compressor, the air storage equipment and the third valve, so that the air supplementing efficiency of the gas compression equipment can be further improved.
Specifically, the air compressor compresses air and stores the compressed air in the air storage device, the air storage device can be a high-pressure air cylinder, the pressure of the high-pressure air cylinder is generally 30bar in a full-air state, and the high-pressure air cylinder is simultaneously used for starting an engine and stopping the engine in an emergency, so that the low-pressure air cylinder can be set to be at the lowest pressure, generally about 16bar, and the situation that the emergency stop is impossible after the pressure of the air cylinder is used up by air supplementing is avoided, so that safety accidents are caused. In practice, the first pressure threshold is the lowest pressure threshold of the air storage device. As shown in fig. 4, first, it is determined whether the pressure value of the high-pressure air cylinder is lower than the set minimum pressure value P 0 When the condition is satisfied, the air compressor is turned on, the high-pressure air cylinder is inflated, whether the pressure of the high-pressure air cylinder reaches the allowable highest pressure value or not, namely, the third pressure threshold value is determined, when the condition is not satisfied, the air compressor is continuously turned on, and the high-pressure air cylinder is inflated until the condition is satisfied, and when the condition is satisfied, the air compressor is controlled to be turned off.
In some embodiments, the air make-up system further includes a fourth valve 146, the fourth valve 146 being disposed on the second connecting line 126 between the engine 114 and the third pressure sensor 120, the controller 132 further configured to perform: step S209, controlling the fourth valve to operate to prevent the gas in the input pipeline from flowing back into the second connection pipeline when the second pressure value is greater than the fourth pressure threshold value. The system is additionally provided with the fourth valve, so that the air flow can be prevented from flowing backwards to the blast equipment, and the blast equipment is further protected.
Specifically, the fourth valve may be a check valve, and when the engine is under high load, the second pressure value of the input pipeline is higher than the pressure at the start of the electric blower, that is, the second pressure threshold, and the check valve may prevent the air flow from flowing backward into the blower, so as to damage the impeller of the blower.
In other embodiments, the controller is further configured to perform: step S210, controlling the blower device not to be started when the second pressure value is larger than the second pressure threshold value. The system can further determine that the air blowing device does not have an opening condition according to the second pressure value and the second pressure threshold value, so as to control the air blowing device not to be opened, and further achieve the effect of protecting the air blowing device.
Specifically, the second pressure value is greater than the second pressure threshold value, and it may be determined that the blower apparatus does not have an on condition.
As shown in fig. 5, the air supplementing system further includes a pressurizing device 148, the pressurizing device 148 is disposed between the smoke level testing device 130 and the engine 114, the pressurizing device 148 is in communication with the inlet of the input line 124 through a third connecting line 144, and the controller 132 is further configured to perform: step S211 of controlling the rotation speed of the supercharging device to increase when the amount of exhaust gas of the engine increases. The system can further quickly boost pressure under the condition of lower pressure in the input pipeline by arranging the pressurizing equipment.
Specifically, the supercharging device may be an exhaust gas turbocharger, the exhaust gas turbocharger is composed of a turbine, a compressor, and the like, exhaust gas discharged from the engine is introduced into the turbine, the turbine is driven to rotate by energy of the exhaust gas, the compressor coaxial with the turbine is driven, and the exhaust gas is compressed and intercooled from the atmosphere and then is delivered to a cylinder for combustion, so that supercharging is achieved. The number of revolutions of the supercharging device in the inlet line is generally about 0 to 4 bar.
To further determine whether the blower device is malfunctioning, the controller is further configured to perform, after controlling the blower device to be turned on to replenish the air to the engine: step S212, controlling the third pressure sensor to detect the pressure in the second connecting pipeline to obtain a fourth pressure value; step S213, determining whether the fourth pressure value is larger than a fifth pressure threshold, and if the fourth pressure value is smaller than or equal to the fifth pressure threshold, determining the fault of the blower device and outputting a fault signal.
Specifically, because the air supplementing amount of the air blowing device is limited, when the pressure of the air inlet channel of the engine is larger than the air supplementing pressure, air flows back to the air blower, and the electric air blower can be damaged. The fifth pressure threshold value is in the range of 0 to 1bar.
In some embodiments, the controller is further configured to perform: and step S216, controlling the gas compression device and the blower device not to be turned on when one of the smoke value and the load increase rate of the engine is equal to or smaller than a corresponding air supplementing threshold value. According to the system, under the condition that the air supplement is not needed through the smoke intensity value and the load increase rate of the engine, the air supplement is stopped, and the energy consumption of the air compression equipment and the air blowing equipment is further saved.
Specifically, when the smoke intensity value is equal to or less than the corresponding air supply threshold value, it is indicated that no black smoke exists, that is, air supply is stopped. And under the condition that the load increase rate is smaller than or equal to the corresponding air supplementing threshold value, the engine is indicated to meet the quick response condition, and air supplementing can be stopped.
In order to enable those skilled in the art to more clearly understand the technical solutions of the present application, the implementation process of the method executed by the controller of the present application will be described in detail below with reference to specific embodiments.
The embodiment relates to a specific method executed by a controller, as shown in fig. 6, including the following steps:
step S1: measuring real-time smoke intensity value SF 1 Or the engine load increase rate Q 1 ；
Step S2: determining whether a first condition is satisfied: measured smoke intensity value SF 1 > black smoke limit SF 0 Or measured load increase rate Q 1 Setting load increase rate reference Q 0 Under the condition that the first condition is not met, the high-pressure air supplementing electromagnetic valve is closed, the electric blower is powered off, and under the condition that the first condition is met, whether the second condition is met or not is determined: high pressure air cylinder pressure P 1 > minimum pressure limit P 0 ；
Step S3: in the case where the above-described second condition is not satisfied, a signal of "the air tank pressure is lower than the minimum pressure limit value, the air supplementing solenoid valve is closed" is output, and it is determined whether the third condition is satisfied: engine inlet duct pressure P 2 Stabilizing pressure P after starting of electric blower 3 In the case where the above-described second condition is satisfied, it is determined whether the fourth condition is satisfied: electric blower outlet pressure P 4 ＞0；
Step S4: if the third condition is not met, the electric blower is powered on, and if the third condition is met, the alarm is given, the electric blower is forbidden to be started, and the air supplementing fails;
step S5: determining that the electric blower has been turned on under the condition that the fourth condition is satisfied, and opening the air supplementing electromagnetic valve under the condition that the fourth condition is not satisfied;
Step S6: when the fourth condition is not satisfied, an alarm is given that the electric blower cannot be turned on and the air supply fails, and when the fourth condition is satisfied, a signal "the electric blower is turned on" is output.
The controller comprises a processor and a memory, wherein the processor comprises a kernel, and the kernel calls corresponding program units in the memory. The kernel can be provided with one or more than one, and the air supplementing system is controlled by adjusting the parameters of the kernel.
The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip.
The embodiment of the invention provides a computer readable storage medium, which comprises a stored program, wherein the program is controlled to execute by a device where the computer readable storage medium is located when running:
step S201, controlling the smoke intensity testing device to detect the smoke intensity of the exhaust gas output by the engine to obtain a smoke intensity value, and receiving the smoke intensity value and the load increase rate of the engine;
specifically, the smoke intensity testing device is used for measuring the real-time exhaust smoke intensity of the engine, and when the smoke intensity value exceeds the visible smoke intensity set value, the exhaust is black visible smoke. The load increase rate is the ratio of the load increased by the engine to the rated load in unit time, the unit time can be 500ms or 1s, and the load increase rate can be set by a person skilled in the art according to the requirements.
Step S202, determining whether at least one of the smoke intensity value and the load increase rate of the engine is greater than a corresponding air supplement threshold value, controlling the first pressure sensor to detect the pressure of the first connecting pipeline to obtain a first pressure value, and determining whether the first pressure value is greater than a first pressure threshold value when at least one of the smoke intensity value and the load increase rate of the engine is greater than the corresponding air supplement threshold value;
specifically, the load increase rate and the smoke intensity value can meet different use requirements of different users. In the case that the user is concerned about black smoke of the ship, the smoke level can be adopted as an air supplementing starting factor. In the case where the user is concerned about the responsiveness of the engine, if the engine is expected to respond quickly when loaded, the load increase rate may be employed as an air make-up start factor. The air supplementing threshold value corresponding to the smoke intensity value can be 1-1.5 FSN, and the air supplementing threshold value corresponding to the load increasing rate can be 5% -10%.
Step S203, controlling the gas compression device to be started to supplement air to the engine when the first pressure value is larger than the first pressure threshold value;
specifically, the first pressure value is a pressure value of the outlet of the gas compression apparatus, and the first pressure threshold may be 10 to 15bar.
Step S204, controlling the second pressure sensor to detect the pressure in the input pipeline to obtain a second pressure value;
specifically, the second pressure value is actually the pressure value of the engine air inlet, and since the electric blower device needs the maximum number of starts per unit time to prevent overheating, the air supplementing strategy preferably adopts the air compression device for air supplementing. When the pressure of the gas cylinder is lower than the lowest protection pressure value, whether the air blowing device has air supplementing conditions or not is judged.
Step S205, when the second pressure value is less than or equal to a second pressure threshold value, the blower is controlled to be turned on to supplement air to the engine.
Specifically, the second pressure threshold may be 1-2 bar, in fact, the second pressure threshold is the stable pressure of the air passage after the blower device is opened, and the above manner may be applicable to different working conditions of the engine, for example: the engine is idle and is in exhaust combination, at the moment, the exhaust combination load is lighter, the gas compression equipment can meet the smoke intensity value or the load increase rate factor, and if the first pressure value is smaller, the air blowing equipment can also meet the requirement; the method comprises the steps that when the middle load of an engine is idle, the load of the combined exhaust is moderate, and after the gas compression equipment is started, if smoke intensity value or load increase rate factor is still not met, and a first pressure value is lower than a first pressure threshold value, the air blowing equipment is started; when the engine is fully loaded and idling and is in row, and the load is heavier, the air compression equipment is started to the lowest first pressure value, and then the air blowing equipment is started; the engine runs at a low speed for a long time, the load is heavy, and after the gas compression equipment is started to the first pressure value which is the lowest, the blast equipment is started; the engine is suddenly loaded at a high speed, and at the moment, the air is supplemented by directly adopting the air compression equipment because the pressure of an input pipeline of the engine is higher.
The embodiment of the invention provides a processor, which is used for running a program, wherein the program is executed when running:
step S201, controlling the smoke intensity testing device to detect the smoke intensity of the exhaust gas output by the engine to obtain a smoke intensity value, and receiving the smoke intensity value and the load increase rate of the engine;
specifically, the smoke intensity testing device is used for measuring the real-time exhaust smoke intensity of the engine, and when the smoke intensity value exceeds the visible smoke intensity set value, the exhaust is black visible smoke. The load increase rate is the ratio of the load increased by the engine to the rated load in unit time, the unit time can be 500ms or 1s, and the load increase rate can be set by a person skilled in the art according to the requirements.
Step S202, determining whether at least one of the smoke intensity value and the load increase rate of the engine is greater than a corresponding air supplement threshold value, controlling the first pressure sensor to detect the pressure of the first connecting pipeline to obtain a first pressure value, and determining whether the first pressure value is greater than a first pressure threshold value when at least one of the smoke intensity value and the load increase rate of the engine is greater than the corresponding air supplement threshold value;
Specifically, the load increase rate and the smoke intensity value can meet different use requirements of different users. In the case that the user is concerned about black smoke of the ship, the smoke level can be adopted as an air supplementing starting factor. In the case where the user is concerned about the responsiveness of the engine, if the engine is expected to respond quickly when loaded, the load increase rate may be employed as an air make-up start factor. The air supplementing threshold value corresponding to the smoke intensity value can be 1-1.5 FSN, and the air supplementing threshold value corresponding to the load increasing rate can be 5% -10%.
Step S203, controlling the gas compression device to be started to supplement air to the engine when the first pressure value is larger than the first pressure threshold value;
specifically, the first pressure value is a pressure value of the outlet of the gas compression apparatus, and the first pressure threshold may be 10 to 15bar.
Step S204, controlling the second pressure sensor to detect the pressure in the input pipeline to obtain a second pressure value;
specifically, the second pressure value is actually the pressure value of the engine air inlet, and since the electric blower device needs the maximum number of starts per unit time to prevent overheating, the air supplementing strategy preferably adopts the air compression device for air supplementing. When the pressure of the gas cylinder is lower than the lowest protection pressure value, whether the air blowing device has air supplementing conditions or not is judged.
Step S205, when the second pressure value is less than or equal to a second pressure threshold value, the blower is controlled to be turned on to supplement air to the engine.
Specifically, the second pressure threshold may be 1-2 bar, in fact, the second pressure threshold is the stable pressure of the air passage after the blower device is opened, and the above manner may be applicable to different working conditions of the engine, for example: the engine is idle and is in exhaust combination, at the moment, the exhaust combination load is lighter, the gas compression equipment can meet the smoke intensity value or the load increase rate factor, and if the first pressure value is smaller, the air blowing equipment can also meet the requirement; the method comprises the steps that when the middle load of an engine is idle, the load of the combined exhaust is moderate, and after the gas compression equipment is started, if smoke intensity value or load increase rate factor is still not met, and a first pressure value is lower than a first pressure threshold value, the air blowing equipment is started; when the engine is fully loaded and idling and is in row, and the load is heavier, the air compression equipment is started to the lowest first pressure value, and then the air blowing equipment is started; the engine runs at a low speed for a long time, the load is heavy, and after the gas compression equipment is started to the first pressure value which is the lowest, the blast equipment is started; the engine is suddenly loaded at a high speed, and at the moment, the air is supplemented by directly adopting the air compression equipment because the pressure of an input pipeline of the engine is higher.
The embodiment of the invention provides equipment, which comprises a processor, a memory and a program stored in the memory and capable of running on the processor, wherein the processor realizes at least the following steps when executing the program:
step S201, controlling the smoke intensity testing device to detect the smoke intensity of the exhaust gas output by the engine to obtain a smoke intensity value, and receiving the smoke intensity value and the load increase rate of the engine;
specifically, the smoke intensity testing device is used for measuring the real-time exhaust smoke intensity of the engine, and when the smoke intensity value exceeds the visible smoke intensity set value, the exhaust is black visible smoke. The load increase rate is the ratio of the load increased by the engine to the rated load in unit time, the unit time can be 500ms or 1s, and the load increase rate can be set by a person skilled in the art according to the requirements.
Step S202, determining whether at least one of the smoke intensity value and the load increase rate of the engine is greater than a corresponding air supplement threshold value, controlling the first pressure sensor to detect the pressure of the first connecting pipeline to obtain a first pressure value, and determining whether the first pressure value is greater than a first pressure threshold value when at least one of the smoke intensity value and the load increase rate of the engine is greater than the corresponding air supplement threshold value;
Specifically, the load increase rate and the smoke intensity value can meet different use requirements of different users. In the case that the user is concerned about black smoke of the ship, the smoke level can be adopted as an air supplementing starting factor. In the case where the user is concerned about the responsiveness of the engine, if the engine is expected to respond quickly when loaded, the load increase rate may be employed as an air make-up start factor. The air supplementing threshold value corresponding to the smoke intensity value can be 1-1.5 FSN, and the air supplementing threshold value corresponding to the load increasing rate can be 5% -10%.
Step S203, controlling the gas compression device to be started to supplement air to the engine when the first pressure value is larger than the first pressure threshold value;
specifically, the first pressure value is a pressure value of the outlet of the gas compression apparatus, and the first pressure threshold may be 10 to 15bar.
Step S204, controlling the second pressure sensor to detect the pressure in the input pipeline to obtain a second pressure value;
specifically, the second pressure value is actually the pressure value of the engine air inlet, and since the electric blower device needs the maximum number of starts per unit time to prevent overheating, the air supplementing strategy preferably adopts the air compression device for air supplementing. When the pressure of the gas cylinder is lower than the lowest protection pressure value, whether the air blowing device has air supplementing conditions or not is judged.
Step S205, when the second pressure value is less than or equal to a second pressure threshold value, the blower is controlled to be turned on to supplement air to the engine.
Specifically, the second pressure threshold may be 1-2 bar, in fact, the second pressure threshold is the stable pressure of the air passage after the blower device is opened, and the above manner may be applicable to different working conditions of the engine, for example: the engine is idle and is in exhaust combination, at the moment, the exhaust combination load is lighter, the gas compression equipment can meet the smoke intensity value or the load increase rate factor, and if the first pressure value is smaller, the air blowing equipment can also meet the requirement; the method comprises the steps that when the middle load of an engine is idle, the load of the combined exhaust is moderate, and after the gas compression equipment is started, if smoke intensity value or load increase rate factor is still not met, and a first pressure value is lower than a first pressure threshold value, the air blowing equipment is started; when the engine is fully loaded and idling and is in row, and the load is heavier, the air compression equipment is started to the lowest first pressure value, and then the air blowing equipment is started; the engine runs at a low speed for a long time, the load is heavy, and after the gas compression equipment is started to the first pressure value which is the lowest, the blast equipment is started; the engine is suddenly loaded at a high speed, and at the moment, the air is supplemented by directly adopting the air compression equipment because the pressure of an input pipeline of the engine is higher.
The present application also provides a computer program product adapted to perform a program initialized with at least the following method steps when executed on a data processing device:
step S201, controlling the smoke intensity testing device to detect the smoke intensity of the exhaust gas output by the engine to obtain a smoke intensity value, and receiving the smoke intensity value and the load increase rate of the engine;
specifically, the smoke intensity testing device is used for measuring the real-time exhaust smoke intensity of the engine, and when the smoke intensity value exceeds the visible smoke intensity set value, the exhaust is black visible smoke. The load increase rate is the ratio of the load increased by the engine to the rated load in unit time, the unit time can be 500ms or 1s, and the load increase rate can be set by a person skilled in the art according to the requirements.
Step S202, determining whether at least one of the smoke intensity value and the load increase rate of the engine is greater than a corresponding air supplement threshold value, controlling the first pressure sensor to detect the pressure of the first connecting pipeline to obtain a first pressure value, and determining whether the first pressure value is greater than a first pressure threshold value when at least one of the smoke intensity value and the load increase rate of the engine is greater than the corresponding air supplement threshold value;
Specifically, the load increase rate and the smoke intensity value can meet different use requirements of different users. In the case that the user is concerned about black smoke of the ship, the smoke level can be adopted as an air supplementing starting factor. In the case where the user is concerned about the responsiveness of the engine, if the engine is expected to respond quickly when loaded, the load increase rate may be employed as an air make-up start factor. The air supplementing threshold value corresponding to the smoke intensity value can be 1-1.5 FSN, and the air supplementing threshold value corresponding to the load increasing rate can be 5% -10%.
Step S203, controlling the gas compression device to be started to supplement air to the engine when the first pressure value is larger than the first pressure threshold value;
specifically, the first pressure value is a pressure value of the outlet of the gas compression apparatus, and the first pressure threshold may be 10 to 15bar.
Step S204, controlling the second pressure sensor to detect the pressure in the input pipeline to obtain a second pressure value;
specifically, the second pressure value is actually the pressure value of the engine air inlet, and since the electric blower device needs the maximum number of starts per unit time to prevent overheating, the air supplementing strategy preferably adopts the air compression device for air supplementing. When the pressure of the gas cylinder is lower than the lowest protection pressure value, whether the air blowing device has air supplementing conditions or not is judged.
Step S205, when the second pressure value is less than or equal to a second pressure threshold value, the blower is controlled to be turned on to supplement air to the engine.
Specifically, the second pressure threshold may be 1-2 bar, in fact, the second pressure threshold is the stable pressure of the air passage after the blower device is opened, and the above manner may be applicable to different working conditions of the engine, for example: the engine is idle and is in exhaust combination, at the moment, the exhaust combination load is lighter, the gas compression equipment can meet the smoke intensity value or the load increase rate factor, and if the first pressure value is smaller, the air blowing equipment can also meet the requirement; the method comprises the steps that when the middle load of an engine is idle, the load of the combined exhaust is moderate, and after the gas compression equipment is started, if smoke intensity value or load increase rate factor is still not met, and a first pressure value is lower than a first pressure threshold value, the air blowing equipment is started; when the engine is fully loaded and idling and is in row, and the load is heavier, the air compression equipment is started to the lowest first pressure value, and then the air blowing equipment is started; the engine runs at a low speed for a long time, the load is heavy, and after the gas compression equipment is started to the first pressure value which is the lowest, the blast equipment is started; the engine is suddenly loaded at a high speed, and at the moment, the air is supplemented by directly adopting the air compression equipment because the pressure of an input pipeline of the engine is higher.
The embodiment of the invention also provides a vehicle which comprises any one of the air supplementing systems and can be used as a vehicle with high air supplementing requirements such as ships, vehicles and the like.
The air supplementing system comprises a gas compression device, a first pressure sensor, a second pressure sensor, a third pressure sensor, an engine, a blowing device, smoke testing equipment and a controller, wherein the engine is provided with an input pipeline and an output pipeline, the gas compression device is communicated with the input pipeline through a first connecting pipeline, the first pressure sensor is arranged at one end, close to the gas compression device, of the first connecting pipeline, the second pressure sensor is arranged in the input pipeline, the blowing device is communicated with the input pipeline through a second connecting pipeline, the third pressure sensor is arranged at one end, close to the blowing device, of the second connecting pipeline, the smoke testing equipment is communicated with the engine through the output pipeline, and the controller is used for executing the steps of:
step S201, controlling the smoke intensity testing device to detect the smoke intensity of the exhaust gas output by the engine to obtain a smoke intensity value, and receiving the smoke intensity value and the load increase rate of the engine;
Specifically, the smoke intensity testing device is used for measuring the real-time exhaust smoke intensity of the engine, and when the smoke intensity value exceeds the visible smoke intensity set value, the exhaust is black visible smoke. The load increase rate is the ratio of the load increased by the engine to the rated load in unit time, the unit time can be 500ms or 1s, and the load increase rate can be set by a person skilled in the art according to the requirements.
Step S202, determining whether at least one of the smoke intensity value and the load increase rate of the engine is greater than a corresponding air supplement threshold value, controlling the first pressure sensor to detect the pressure of the first connecting pipeline to obtain a first pressure value, and determining whether the first pressure value is greater than a first pressure threshold value when at least one of the smoke intensity value and the load increase rate of the engine is greater than the corresponding air supplement threshold value;
specifically, the load increase rate and the smoke intensity value can meet different use requirements of different users. In the case that the user is concerned about black smoke of the ship, the smoke level can be adopted as an air supplementing starting factor. In the case where the user is concerned about the responsiveness of the engine, if the engine is expected to respond quickly when loaded, the load increase rate may be employed as an air make-up start factor. The air supplementing threshold value corresponding to the smoke intensity value can be 1-1.5 FSN, and the air supplementing threshold value corresponding to the load increasing rate can be 5% -10%.
Step S203, controlling the gas compression device to be started to supplement air to the engine when the first pressure value is larger than the first pressure threshold value;
specifically, the first pressure value is a pressure value of the outlet of the gas compression apparatus, and the first pressure threshold may be 10 to 15bar.
Step S204, controlling the second pressure sensor to detect the pressure in the input pipeline to obtain a second pressure value;
specifically, the second pressure value is actually the pressure value of the engine air inlet, and since the electric blower device needs the maximum number of starts per unit time to prevent overheating, the air supplementing strategy preferably adopts the air compression device for air supplementing. When the pressure of the gas cylinder is lower than the lowest protection pressure value, whether the air blowing device has air supplementing conditions or not is judged.
Step S205, when the second pressure value is less than or equal to a second pressure threshold value, the blower is controlled to be turned on to supplement air to the engine.
Specifically, the second pressure threshold may be 1-2 bar, in fact, the second pressure threshold is the stable pressure of the air passage after the blower device is opened, and the above manner may be applicable to different working conditions of the engine, for example: the engine is idle and is in exhaust combination, at the moment, the exhaust combination load is lighter, the gas compression equipment can meet the smoke intensity value or the load increase rate factor, and if the first pressure value is smaller, the air blowing equipment can also meet the requirement; the method comprises the steps that when the middle load of an engine is idle, the load of the combined exhaust is moderate, and after the gas compression equipment is started, if smoke intensity value or load increase rate factor is still not met, and a first pressure value is lower than a first pressure threshold value, the air blowing equipment is started; when the engine is fully loaded and idling and is in row, and the load is heavier, the air compression equipment is started to the lowest first pressure value, and then the air blowing equipment is started; the engine runs at a low speed for a long time, the load is heavy, and after the gas compression equipment is started to the first pressure value which is the lowest, the blast equipment is started; the engine is suddenly loaded at a high speed, and at the moment, the air is supplemented by directly adopting the air compression equipment because the pressure of an input pipeline of the engine is higher.
Through this embodiment, there is provided a vehicle including a gas supplementing system including a gas compression device, a first pressure sensor, a second pressure sensor, a third pressure sensor, an engine, a blower device, a smoke testing device, and a controller for executing: the smoke intensity testing equipment is controlled to detect the smoke intensity of the exhaust gas output by the engine, a smoke intensity value is obtained, and the smoke intensity value and the load increase rate of the engine are received; determining whether at least one of the smoke intensity value and the load increase rate of the engine is greater than a corresponding air supplementing threshold value, controlling a first pressure sensor to detect the pressure of a first connecting pipeline under the condition that the at least one of the smoke intensity value and the load increase rate of the engine is greater than the corresponding air supplementing threshold value, obtaining a first pressure value, and determining whether the first pressure value is greater than the first pressure threshold value; controlling the gas compression device to be started to supplement air to the engine under the condition that the first pressure value is larger than a first pressure threshold value; controlling a second pressure sensor to detect the pressure in the input pipeline to obtain a second pressure value; and under the condition that the second pressure value is smaller than or equal to the second pressure threshold value, controlling the opening of the blower equipment to supplement air to the engine. According to the air supplementing system, the air compression equipment and the air blowing equipment are respectively connected to the input pipeline of the engine, the real-time air supplementing working condition and the service life of an actual part are determined through the first pressure sensor, the second pressure sensor and the third pressure sensor, the advantages and disadvantages of two different air supplementing modes are combined, the two different air supplementing modes are adopted under different conditions, and the problem that different air supplementing modes are required under different load conditions in the prior art can not be met is solved.
It should also be noted that 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 an element.
From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:
the utility model provides a make-up system, including gas compression equipment, first pressure sensor, second pressure sensor, third pressure sensor, engine, blower unit, smoke intensity test equipment and controller, the controller is used for carrying out: the smoke intensity testing equipment is controlled to detect the smoke intensity of the exhaust gas output by the engine, a smoke intensity value is obtained, and the smoke intensity value and the load increase rate of the engine are received; determining whether at least one of the smoke intensity value and the load increase rate of the engine is greater than a corresponding air supplementing threshold value, controlling a first pressure sensor to detect the pressure of a first connecting pipeline under the condition that the at least one of the smoke intensity value and the load increase rate of the engine is greater than the corresponding air supplementing threshold value, obtaining a first pressure value, and determining whether the first pressure value is greater than the first pressure threshold value; controlling the gas compression device to be started to supplement air to the engine under the condition that the first pressure value is larger than a first pressure threshold value; controlling a second pressure sensor to detect the pressure in the input pipeline to obtain a second pressure value; and under the condition that the second pressure value is smaller than or equal to the second pressure threshold value, controlling the opening of the blower equipment to supplement air to the engine. According to the air supplementing system, the air compression equipment and the air blowing equipment are respectively connected to the input pipeline of the engine, the real-time air supplementing working condition and the service life of an actual part are determined through the first pressure sensor, the second pressure sensor and the third pressure sensor, the advantages and disadvantages of two different air supplementing modes are combined, the two different air supplementing modes are adopted under different conditions, and the problem that different air supplementing modes are required under different load conditions in the prior art can not be met is solved.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a redundant air supplement system of engine, its characterized in that, includes gas compression equipment, first pressure sensor, second pressure sensor, third pressure sensor, engine, blower device, smoke intensity test equipment and controller, wherein, the engine has input pipeline and output pipeline, gas compression equipment through first connecting line with the input pipeline intercommunication, first pressure sensor sets up first connecting line is close to gas compression equipment's one end, second pressure sensor sets up in the input pipeline, blower device through the second connecting line with input pipeline intercommunication, third pressure sensor sets up second connecting line is close to blower device's one end, smoke intensity test equipment with the engine is through output pipeline intercommunication, the controller is used for carrying out:
Controlling the smoke intensity testing equipment to detect the smoke intensity of the exhaust gas output by the engine to obtain a smoke intensity value, and receiving the smoke intensity value and the load increase rate of the engine;
determining whether at least one of the smoke intensity value and the load increase rate of the engine is greater than a corresponding air supplementing threshold value, controlling the first pressure sensor to detect the pressure of the first connecting pipeline under the condition that the at least one of the smoke intensity value and the load increase rate of the engine is greater than the corresponding air supplementing threshold value, obtaining a first pressure value, and determining whether the first pressure value is greater than the first pressure threshold value;
controlling the gas compression device to be started to supplement air to the engine under the condition that the first pressure value is larger than the first pressure threshold value;
controlling the second pressure sensor to detect the pressure in the input pipeline to obtain a second pressure value;
and under the condition that the second pressure value is smaller than or equal to a second pressure threshold value, controlling the opening of the blower equipment to supplement air to the engine.
2. The air make-up system of claim 1, further comprising a first valve disposed on the first connection line between the gas compression device and the engine, controlling the gas compression device to open to make-up air to the engine, comprising:
The first valve is controlled to open to cause the gas compression apparatus to open to replenish the engine.
3. The air make-up system of claim 1, further comprising a second valve disposed on the second connection line between the blower device and the third pressure sensor, controlling the blower device to open to make-up air to the engine, comprising:
and controlling the second valve to be opened so that the blower device supplements air for the engine.
4. A make-up system according to claim 1, further comprising a third valve, the gas compression device comprising an air compressor and an air storage device, the air storage device being directly connected to the first connection line, the third valve being disposed on a third connection line between the air compressor and the air storage device, the controller further being configured to perform:
controlling the third valve to open to make the air compressor supplement air to the air storage device when the first pressure value is smaller than or equal to the first pressure threshold value;
controlling the first pressure sensor to detect a first connecting pipeline after air supplement to obtain a third pressure value;
Determining whether the third pressure value is greater than a third pressure threshold, and controlling the third valve to close to stop the air compressor from replenishing air to the air storage device if the third pressure value is greater than the third pressure threshold.
5. The air make-up system of claim 1, further comprising a fourth valve disposed on the second connection line between the engine and the third pressure sensor, the controller further configured to perform:
and controlling the fourth valve to work to prevent the gas in the input pipeline from flowing back into the second connecting pipeline under the condition that the second pressure value is larger than a fourth pressure threshold value.
6. A gas make-up system as defined in claim 1, wherein the controller is further configured to perform:
and controlling the blower device not to be started under the condition that the second pressure value is larger than the second pressure threshold value.
7. A make-up system as defined in claim 6, further comprising a supercharging device disposed between the smoke test device and the engine, the supercharging device in communication with the inlet of the input line through a third connecting line, the controller further configured to perform:
In the case where the amount of exhaust gas of the engine increases, the rotation speed of the supercharging device is controlled to increase.
8. The air make-up system of claim 1, wherein after controlling the blower device to be turned on to make-up air to the engine, the controller is further configured to perform:
controlling the third pressure sensor to detect the pressure in the second connecting pipeline to obtain a fourth pressure value;
determining whether the fourth pressure value is larger than a fifth pressure threshold value, and determining that the blower device fails and outputting a failure signal under the condition that the fourth pressure value is smaller than or equal to the fifth pressure threshold value.
9. The air make-up system of claim 8, wherein the controller is further configured to perform:
and controlling the gas compression equipment and the blower equipment not to be started under the condition that one of the smoke intensity value and the load increasing rate of the engine is smaller than or equal to a corresponding air supplementing threshold value.
10. A vehicle comprising an air make-up system according to any one of claims 1 to 9.
CN202311282012.3A 2023-09-28 2023-09-28 Redundant air supplementing system of engine Pending CN117307311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311282012.3A CN117307311A (en) 2023-09-28 2023-09-28 Redundant air supplementing system of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311282012.3A CN117307311A (en) 2023-09-28 2023-09-28 Redundant air supplementing system of engine

Publications (1)

Publication Number Publication Date
CN117307311A true CN117307311A (en) 2023-12-29

Family

ID=89296813

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311282012.3A Pending CN117307311A (en) 2023-09-28 2023-09-28 Redundant air supplementing system of engine

Country Status (1)

Country Link
CN (1) CN117307311A (en)

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