CN109057981A - A kind of control method and device of double independent gas handling system engines - Google Patents

A kind of control method and device of double independent gas handling system engines Download PDF

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Publication number
CN109057981A
CN109057981A CN201811130264.3A CN201811130264A CN109057981A CN 109057981 A CN109057981 A CN 109057981A CN 201811130264 A CN201811130264 A CN 201811130264A CN 109057981 A CN109057981 A CN 109057981A
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China
Prior art keywords
air inlet
value
pressure force
force value
inlet pressure
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Granted
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CN201811130264.3A
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CN109057981B (en
Inventor
王裕鹏
刘建飞
徐永新
孙树矗
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/30Controlling fuel injection
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/14Introducing closed-loop corrections
    • F02D41/1438Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1439Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
    • F02D41/144Sensor in intake manifold
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D2200/00Input parameters for engine control
    • F02D2200/02Input parameters for engine control the parameters being related to the engine
    • F02D2200/04Engine intake system parameters
    • F02D2200/0406Intake manifold pressure

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

This application discloses a kind of control method and device of double independent gas handling system engines, under engine operating state, whether detection engine two sides admission pressure deviation is not less than preset value, if it is, judge whether the air inlet pressure force value of the small side of admission pressure is less than the minimum air inlet pressure force value of theory of the current distributive value in this side, if it is, its theoretical distributive value is further determined according to the air inlet pressure force value of the small side of admission pressure, and the distributive value for controlling the big side of admission pressure is the theoretical distributive value.The above method and device limit the maximum distributive value of the larger side of engine power by detection engine two sides admission pressure deviation in real time, the power for guaranteeing that engine two sides issue is almost the same, and then ensure that engine crankshaft turns round shake minimum, crankshaft fault is reduced, engine mechanical life is extended.

Description

A kind of control method and device of double independent gas handling system engines
Technical field
The present invention relates to engine control technologies, and more specifically, it relates to a kind of double independent gas handling system engines Control method and device.
Background technique
The double independent gas handling system engines of large-diameter are using double ECU (Electronic Control Unit, electronic control Unit) controller, the cylinder of engine two sides is respectively the side A and the side B.Fig. 1 is the double independent gas handling system engines of large-diameter Structural plan, as shown in Figure 1, there are independent gas handling system in the two sides A, B, wherein the gas handling system of every side all includes air filter Clear device (abbreviation air filter), turbocharger (abbreviation booster) and intercooler, ECU1 control the side engine A cylinder fuel injection, ECU2 Control the side engine B cylinder fuel injection.
Air filter blocking, air inlet pipe may occur in long-time use process for the double independent gas handling system engines of large-diameter A variety of failure conditions such as gas leakage and booster abrasion, aging, failure.Above situation will lead to the admission pressure of engine two sides not Together, when engine long-time, full load operate in this operating condition.It will lead to two sides thermic load difference, abrasion difference, be applied to Shake different the case where waiting damage engine mechanical life are turned round on crankshaft.
It is directed to above situation at present, common method is the admission pressure that gas handling system two sides are judged according to Engine ECU Deviation can quote failure when the admission pressure deviation when two sides is excessive, carry out degradation then to limit engine maximum Power.Degradation refers to the limitation distributive value when engine quotes failure, carried out to protect engine, torque or turns The processing method of speed.But there is no effectively solve the problems, such as that it is high that engine two sides acting difference and crankshaft turn round shake for this method.
Summary of the invention
In view of this, the present invention provides a kind of control method and device of double independent gas handling system engines, to overcome In the prior art due to can not effectively solve the problems, such as that the acting of engine two sides is different and crankshaft torsion shake is high using degradation.
To achieve the above object, the invention provides the following technical scheme:
A kind of control method of double independent gas handling system engines, comprising:
Under engine operating state, whether detection engine two sides admission pressure deviation is more than preset value;
If so, judging whether the air inlet pressure force value of the small side of admission pressure is less than the theory of the current distributive value in this side most Small air inlet pressure force value;
If so, determining its theoretical distributive value according to the air inlet pressure force value of the small side of admission pressure;
The distributive value for controlling the big side of admission pressure is the theoretical distributive value.
Optionally, which is characterized in that further include:
It is pre-configured with the corresponding relationship of distributive value Yu air inlet pressure force value range.
Optionally, whether the air inlet pressure force value of the side for judging that admission pressure is small is less than the reason of the current distributive value in this side By minimum air inlet pressure force value, comprising:
According to the corresponding relationship of preconfigured distributive value and air inlet pressure force value range, the small side of admission pressure is determined The corresponding air inlet pressure force value range of distributive value;
Judge whether the air inlet pressure force value of the small side of the admission pressure is less than in the determining admission pressure range Minimum air inlet pressure force value.
Optionally, the air inlet pressure force value of the side small according to admission pressure determines its theoretical distributive value, comprising:
According to the corresponding relationship of preconfigured distributive value and air inlet pressure force value range, the small side of admission pressure is determined One or more air inlet pressure force value ranges locating for the air inlet pressure force value;
When the air inlet pressure force value is in multiple air inlet pressure force value ranges, from the multiple air inlet pressure force value range really The admission pressure range of a fixed mean value closest to the air inlet pressure force value is target inlet air pressure limit;
According to the corresponding relationship of preconfigured distributive value and air inlet pressure force value range, the target inlet air pressure model is determined Enclose corresponding theoretical distributive value.
Optionally, before whether detection engine two sides admission pressure deviation is more than preset value, further includes:
Determine engine two sides boost pressure signal fault-free.
A kind of control device of double independent gas handling system engines, comprising:
Air inlet detection module, under engine operating state, whether detection engine two sides admission pressure deviation More than preset value;
Judgment module, for detecting motivation two sides admission pressure deviation not less than default in the air inlet detection module When value, judge whether the air inlet pressure force value of the small side of admission pressure is less than the minimum admission pressure of theory of the current distributive value in this side Value;
Distributive value determining module, for when the judgment result of the judgment module is yes, according to admission pressure it is small one The air inlet pressure force value of side determines its theoretical distributive value;
Distributive value control module, the distributive value for controlling the big side of admission pressure are the theoretical distributive value.
Optionally, which is characterized in that further include:
Configuration module, for being pre-configured with the corresponding relationship of distributive value Yu air inlet pressure force value range.
Optionally, the judgment module includes:
Range determination module is determined for the corresponding relationship according to preconfigured distributive value and air inlet pressure force value range The corresponding air inlet pressure force value range of the distributive value of the small side of admission pressure;
Judging submodule, for judge the air inlet pressure force value of the small side of the admission pressure whether be less than it is determining described in Minimum air inlet pressure force value in admission pressure range.
Optionally, the distributive value determining module includes:
Pressure limit determining module, for the corresponding relationship according to preconfigured distributive value and air inlet pressure force value range, Determine one or more air inlet pressure force value ranges locating for the air inlet pressure force value of the small side of admission pressure;
Target zone determining module, for when the air inlet pressure force value is in multiple air inlet pressure force value ranges, from described The admission pressure range for determining a mean value closest to the air inlet pressure force value in multiple air inlet pressure force value ranges is target inlet air Pressure limit;
Distributive value determines submodule, for the corresponding relationship according to preconfigured distributive value and air inlet pressure force value range, Determine the corresponding theoretical distributive value of the target inlet air pressure limit.
Optionally, further includes:
Signal determining module, for whether not to detect engine two sides admission pressure deviation in the air inlet detection module Before preset value, engine two sides boost pressure signal fault-free is determined.
It can be seen via above technical scheme that compared with prior art, the embodiment of the invention discloses it is a kind of it is double it is independent into The control method and device of gas system engine detect engine two sides admission pressure deviation under engine operating state Whether preset value is not less than, if so, judging whether the air inlet pressure force value of the small side of admission pressure is less than the current oil spout in this side The minimum air inlet pressure force value of the theory of amount, if so, further being determined according to the air inlet pressure force value of the small side of admission pressure Its theoretical distributive value, and the distributive value for controlling the big side of admission pressure is the theoretical distributive value.The above method and device are logical The maximum distributive value that detection engine two sides admission pressure deviation to limit the larger side of engine power in real time is crossed, guarantees to start The power that machine two sides issue is almost the same, and then ensures that engine crankshaft turns round shake minimum, reduces crankshaft fault, extends engine machine The tool service life.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of control method flow chart of double independent gas handling system engines disclosed by the embodiments of the present invention;
Fig. 2 is the control method flow chart of another double independent gas handling system engines disclosed by the embodiments of the present invention;
Fig. 3 is the flow chart of determining theoretical distributive value disclosed by the embodiments of the present invention;
Fig. 4 is a kind of structural representation of the control device of double independent gas handling system engines disclosed by the embodiments of the present invention Figure;
Fig. 5 is the structural representation of the control device of another double independent gas handling system engines disclosed by the embodiments of the present invention Figure;
Fig. 6 is the structural schematic diagram of judgment module disclosed by the embodiments of the present invention;
Fig. 7 is the structural schematic diagram of distributive value determining module disclosed by the embodiments of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is a kind of control method flow chart of double independent gas handling system engines disclosed by the embodiments of the present invention, referring to Shown in Fig. 1, the control method of double independent gas handling system engines may include:
Step 101: under engine operating state, whether detection engine two sides admission pressure deviation is more than default Value, if so, entering step 102.
Under engine operating state, it is independent real-time detection engine two sides can be distinguished by the ECU of engine two sides The admission pressure of gas handling system.When a variety of situations such as the blocking of generation air filter, air inlet pipe gas leakage and booster abrasion, aging, failures When, it is excessive to will lead to engine two sides admission pressure deviation.
In the present embodiment, a preset value can be preset, and in engine operation process, real-time detection engine Whether two sides admission pressure deviation is more than preset value, and described is more than preset value, including is greater than preset value, or is more than or equal to default The case where value.
If the judging result of step 101 be it is no, it is without any processing, continue to operate normally, and repeat step 101.
Step 102: judging whether the air inlet pressure force value of the small side of admission pressure is less than the theory of the current distributive value in this side Minimum air inlet pressure force value, if so, entering step 103.
The corresponding relationship of distributive value Yu air inlet pressure force value range can be stored in advance in system, in this way, it may be convenient to sentence Whether the air inlet pressure force value of the small side of disconnected admission pressure is less than the minimum air inlet pressure force value of theory of the current distributive value in this side.
Judge whether the air inlet pressure force value of the small side of admission pressure is less than the minimum air inlet of theory of the current distributive value in this side Pressure value.Really judge that air inflow corresponding to the current distributive value in the small side of admission pressure is insufficient with the presence or absence of burning The case where, if in the too low situation of admission pressure, air inflow causes to burn very little insufficient, and power can reduce, and lead to engine Two sides power output is inconsistent.
If it is judged that be it is no, whether can detect engine two sides admission pressure deviation again with return step 101 More than preset value.
Step 103: its theoretical distributive value is determined according to the air inlet pressure force value of the small side of admission pressure.
Under normal circumstances, there are certain corresponding relationships for distributive value and air inlet pressure force value, can be according to the corresponding relationship, really Determine the corresponding theoretical distributive value of air inlet pressure force value.
Step 104: the distributive value of the big side of control admission pressure is the theoretical distributive value.
Since present engine side admission pressure is small, side admission pressure is big, this results in the power of two sides sending not Together, it further results in crankshaft and turns round shake greatly, in order to which the power and the torsion shake that reduce engine two sides are poor, the big side of control admission pressure Distributive value and the air inlet pressure force value of the small side of admission pressure corresponding theoretical distributive value it is identical so that engine two sides Power is consistent substantially, and crankshaft turns round shake and becomes smaller.
In the present embodiment, the control method of double independent gas handling system engines is inclined by detection engine two sides admission pressure Difference to limit the maximum distributive value of the larger side of engine power in real time, and the power for guaranteeing that engine two sides issue is almost the same, And then ensure that engine crankshaft turns round shake minimum, crankshaft fault is reduced, engine mechanical life is extended.
Fig. 2 is the control method flow chart of another double independent gas handling system engines disclosed by the embodiments of the present invention, such as Shown in Fig. 2, the control method of double independent gas handling system engines may include:
Step 201: being pre-configured with the corresponding relationship of distributive value Yu air inlet pressure force value range.
Distributive value and air inlet pressure force value range are determined according to the corresponding relationship of distributive value under normal circumstances and air inlet pressure force value Corresponding relationship.Above-mentioned corresponding relationship is configured in advance, it is subsequent can be convenient when in use call directly access.
Step 202: under engine operating state, whether detection engine two sides admission pressure deviation is more than default Value, if so, entering step 203.
Step 203: according to the corresponding relationship of preconfigured distributive value and air inlet pressure force value range, determining that admission pressure is small Side the corresponding air inlet pressure force value range of distributive value.
Step 204: judging whether the air inlet pressure force value of the small side of the admission pressure is less than the determining air inlet pressure Minimum air inlet pressure force value in power range, if so, entering step 205.
An admission pressure range not instead of fixed value, a value range can during the embodiment of the present invention To judge minimum that whether the air inlet pressure force value of the small side of the admission pressure is less than in the determining admission pressure range Air inlet pressure force value, i.e. minimum value in determining air inlet pressure force value range.
Step 205: its theoretical distributive value is determined according to the air inlet pressure force value of the small side of admission pressure.
Step 206: the distributive value of the big side of control admission pressure is the theoretical distributive value.
At one in the specific implementation, preconfigured distributive value and the corresponding relationship of air inlet pressure force value range can be oil mass Limit setting table.For example, engine A side admission pressure is 1.8bar, the side B admission pressure is 2.5bar, according to air inlet pressure force value meter The air inflow for calculating 1.8bar cannot make current oil mass completely burned, therefore look into pre-set oil mass limit setting table and finally obtain It is 85% that oil mass, which limits percentage, and the distributive value for finally controlling the side engine B only has 85%, guarantees the power that the side A and the side B issue It is almost the same.
In the present embodiment, it is pre-configured with the corresponding relationship of distributive value Yu air inlet pressure force value range, so that engine two sides When admission pressure deviation meets preset condition, is easily determined and limited according to distributive value and the corresponding relationship of air inlet pressure force value range The maximum distributive value of the larger side of engine power, the power for guaranteeing that engine two sides issue is almost the same, and then ensures to start Machine crankshaft turns round shake minimum, reduces crankshaft fault, extends engine mechanical life.
Fig. 3 is the flow chart of determining theoretical distributive value disclosed by the embodiments of the present invention, as shown in connection with fig. 3, in above-mentioned implementation In example, its theoretical distributive value is determined according to the air inlet pressure force value of the small side of admission pressure, may include:
Step 301: according to the corresponding relationship of preconfigured distributive value and air inlet pressure force value range, determining that admission pressure is small Side the air inlet pressure force value locating for one or more air inlet pressure force value ranges.
Different distributive values corresponds to different air inlet pressure force value ranges, however, different air inlet pressure force value ranges may deposit It is being overlapped, for example, the 100% corresponding air inlet pressure force value range of distributive value is (2.3-2.7) bar, 90% distributive value is corresponding Air inlet pressure force value range is (2.0-2.5) bar, and the lap of above-mentioned two air inlet pressure force value range is (2.3-2.5) bar。
Step 302: when the air inlet pressure force value is in multiple air inlet pressure force value ranges, from the multiple air inlet pressure force value The admission pressure range for determining a mean value closest to the air inlet pressure force value in range is target inlet air pressure limit.
In order to guarantee the accuracy of regulation, determine a mean value described in from the multiple air inlet pressure force value range The admission pressure range of air inlet pressure force value is target inlet air pressure limit.Wherein the admission pressure value is small one of admission pressure The air inlet pressure force value of side.
Step 303: according to the corresponding relationship of preconfigured distributive value and air inlet pressure force value range, determine the target into The corresponding theoretical distributive value of atmospheric pressure range.
It, can be corresponding with air inlet pressure force value range according to preconfigured distributive value after determining air inlet pressure force value range Relationship directly determines its corresponding theoretical distributive value.
In other embodiments, the control method of double independent gas handling system engines is in the detection engine two sides air inlet Before whether pressure divergence value is more than preset value, the trouble-free step of engine two sides boost pressure signal can also be comprised determining that Suddenly.It is subsequent to guarantee according to two sides admission pressure only in the trouble-free situation of engine two sides boost pressure signal Value determines and the distributive value controlled is correct, reaches and reduces engine two sides power difference, reduces engine two sides crankshaft and turns round shake Purpose.
For the various method embodiments described above, for simple description, therefore, it is stated as a series of action combinations, but Be those skilled in the art should understand that, the present invention is not limited by the sequence of acts described because according to the present invention, certain A little steps can be performed in other orders or simultaneously.Secondly, those skilled in the art should also know that, it is retouched in specification The embodiment stated belongs to preferred embodiment, and related actions and modules are not necessarily necessary for the present invention.
Method is described in detail in aforementioned present invention disclosed embodiment, diversified forms can be used for method of the invention Device realize that therefore the invention also discloses a kind of devices, and specific embodiment is given below and is described in detail.
Fig. 4 is a kind of structural representation of the control device of double independent gas handling system engines disclosed by the embodiments of the present invention Figure, shown in Figure 4, the control device 40 of double independent gas handling system engines may include:
Air inlet detection module 401 is used under engine operating state, and detection engine two sides admission pressure deviation is No is more than preset value.
Under engine operating state, it is independent real-time detection engine two sides can be distinguished by the ECU of engine two sides The admission pressure of gas handling system.When a variety of situations such as the blocking of generation air filter, air inlet pipe gas leakage and booster abrasion, aging, failures When, it is excessive to will lead to engine two sides admission pressure deviation.
In the present embodiment, a preset value can be preset, and in engine operation process, real-time detection engine Whether two sides admission pressure deviation is more than preset value, and described is more than preset value, including is greater than preset value, or is more than or equal to default The case where value.
If the judging result of the recent detection module 401 be it is no, it is without any processing, continue to operate normally, Reinspection of laying equal stress on surveys whether engine two sides admission pressure deviation is more than preset value.
Judgment module 402, for detecting that motivation two sides admission pressure deviation is not small in the air inlet detection module 401 When preset value, judge the air inlet pressure force value of the small side of admission pressure whether be less than the current distributive value in this side theory it is minimum into Air pressure force value.
The corresponding relationship of distributive value Yu air inlet pressure force value range can be stored in advance in system, in this way, it may be convenient to sentence Whether the air inlet pressure force value of the small side of disconnected admission pressure is less than the minimum air inlet pressure force value of theory of the current distributive value in this side.
Judge whether the air inlet pressure force value of the small side of admission pressure is less than the minimum air inlet of theory of the current distributive value in this side Pressure value.Really judge that air inflow corresponding to the current distributive value in the small side of admission pressure is insufficient with the presence or absence of burning The case where, if in the too low situation of admission pressure, air inflow causes to burn very little insufficient, and power can reduce, and lead to engine Two sides power output is inconsistent.
If it is judged that be it is no, the air inlet detection module 401 detects engine two sides admission pressure deviation again It whether is more than preset value.
Distributive value determining module 403 is when being, according to admission pressure for the judging result in the judgment module 402 The air inlet pressure force value of small side determines its theoretical distributive value.
Under normal circumstances, there are certain corresponding relationships for distributive value and air inlet pressure force value, can be according to the corresponding relationship, really Determine the corresponding theoretical distributive value of air inlet pressure force value.
Distributive value control module 404, the distributive value for controlling the big side of admission pressure are the theoretical distributive value.
Since present engine side admission pressure is small, side admission pressure is big, this results in the power of two sides sending not Together, it further results in crankshaft and turns round shake greatly, in order to which the power and the torsion shake that reduce engine two sides are poor, the big side of control admission pressure Distributive value and the air inlet pressure force value of the small side of admission pressure corresponding theoretical distributive value it is identical so that engine two sides Power is consistent substantially, and crankshaft turns round shake and becomes smaller.
In the present embodiment, the control device of double independent gas handling system engines is inclined by detection engine two sides admission pressure Difference to limit the maximum distributive value of the larger side of engine power in real time, and the power for guaranteeing that engine two sides issue is almost the same, And then ensure that engine crankshaft turns round shake minimum, crankshaft fault is reduced, engine mechanical life is extended.
Fig. 5 is the structural representation of the control device of another double independent gas handling system engines disclosed by the embodiments of the present invention Figure, as shown in figure 5, the control device 50 of double independent gas handling system engines may include:
Configuration module 501, for being pre-configured with the corresponding relationship of distributive value Yu air inlet pressure force value range.
Distributive value and air inlet pressure force value range are determined according to the corresponding relationship of distributive value under normal circumstances and air inlet pressure force value Corresponding relationship.Above-mentioned corresponding relationship is configured in advance, it is subsequent can be convenient when in use call directly access.
Air inlet detection module 401 is used under engine operating state, and detection engine two sides admission pressure deviation is No is more than preset value.
Judgment module 402, for detecting that motivation two sides admission pressure deviation is not small in the air inlet detection module 401 When preset value, judge the air inlet pressure force value of the small side of admission pressure whether be less than the current distributive value in this side theory it is minimum into Air pressure force value.
Distributive value determining module 403 is when being, according to admission pressure for the judging result in the judgment module 402 The air inlet pressure force value of small side determines its theoretical distributive value.
Distributive value control module 404, the distributive value for controlling the big side of admission pressure are the theoretical distributive value.
At one in the specific implementation, preconfigured distributive value and the corresponding relationship of air inlet pressure force value range can be oil mass Limit setting table.For example, engine A side admission pressure is 1.8bar, the side B admission pressure is 2.5bar, according to air inlet pressure force value meter The air inflow for calculating 1.8bar cannot make current oil mass completely burned, therefore look into pre-set oil mass limit setting table and finally obtain It is 85% that oil mass, which limits percentage, and the distributive value for finally controlling the side engine B only has 85%, guarantees the power that the side A and the side B issue It is almost the same.
In the present embodiment, it is pre-configured with the corresponding relationship of distributive value Yu air inlet pressure force value range, so that engine two sides When admission pressure deviation meets preset condition, is easily determined and limited according to distributive value and the corresponding relationship of air inlet pressure force value range The maximum distributive value of the larger side of engine power, the power for guaranteeing that engine two sides issue is almost the same, and then ensures to start Machine crankshaft turns round shake minimum, reduces crankshaft fault, extends engine mechanical life.
In above-described embodiment, the judgment module 402 specifically may refer to Fig. 6, as shown in fig. 6, judgment module 402 can be with It include: range determination module 601 and judging submodule 602.
Wherein, range determination module 601, for being closed according to preconfigured distributive value is corresponding with air inlet pressure force value range System, determines the corresponding air inlet pressure force value range of the distributive value of the small side of admission pressure.
Judging submodule 602, for judging it is determining whether the air inlet pressure force value of the small side of the admission pressure is less than Minimum air inlet pressure force value in the admission pressure range.
An admission pressure range not instead of fixed value, a value range can during the embodiment of the present invention To judge minimum that whether the air inlet pressure force value of the small side of the admission pressure is less than in the determining admission pressure range Air inlet pressure force value, i.e. minimum value in determining air inlet pressure force value range.
Fig. 7 is the structural schematic diagram of distributive value determining module disclosed by the embodiments of the present invention, as shown in fig. 7, distributive value is true Cover half block 403 may include:
Pressure limit determining module 701, for being closed according to preconfigured distributive value is corresponding with air inlet pressure force value range System, determines one or more air inlet pressure force value ranges locating for the air inlet pressure force value of the small side of admission pressure.
Different distributive values corresponds to different air inlet pressure force value ranges, however, different air inlet pressure force value ranges may deposit It is being overlapped, for example, the 100% corresponding air inlet pressure force value range of distributive value is (2.3-2.7) bar, 90% distributive value is corresponding Air inlet pressure force value range is (2.0-2.5) bar, and the lap of above-mentioned two air inlet pressure force value range is (2.3-2.5) bar。
Target zone determining module 702 is used for when the air inlet pressure force value is in multiple air inlet pressure force value ranges, from institute State in multiple air inlet pressure force value ranges determine a mean value closest to the air inlet pressure force value admission pressure range be target into Atmospheric pressure range.
In order to guarantee the accuracy of regulation, determine a mean value described in from the multiple air inlet pressure force value range The admission pressure range of air inlet pressure force value is target inlet air pressure limit.Wherein the admission pressure value is small one of admission pressure The air inlet pressure force value of side.
Distributive value determines submodule 703, for closing according to preconfigured distributive value is corresponding with air inlet pressure force value range System determines the corresponding theoretical distributive value of the target inlet air pressure limit.
It, can be corresponding with air inlet pressure force value range according to preconfigured distributive value after determining air inlet pressure force value range Relationship directly determines its corresponding theoretical distributive value.
In other examples, the control device of double independent gas handling system engines can also include that signal determines mould Block, for the air inlet detection module detection engine two sides admission pressure deviation whether be not less than preset value before, really Determine engine two sides boost pressure signal fault-free.Only in the trouble-free situation of engine two sides boost pressure signal, after It is continuous to guarantee that determining according to two sides air inlet pressure force value and control distributive value is correct, reach and reduces engine two sides difference power Value reduces the purpose that engine two sides crankshaft turns round shake.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part It is bright.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain Lid non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one The widest scope of cause.

Claims (10)

1. a kind of control method of double independent gas handling system engines characterized by comprising
Under engine operating state, whether detection engine two sides admission pressure deviation is more than preset value;
If so, judge the air inlet pressure force value of the small side of admission pressure whether be less than the current distributive value in this side theory it is minimum into Air pressure force value;
If so, determining its theoretical distributive value according to the air inlet pressure force value of the small side of admission pressure;
The distributive value for controlling the big side of admission pressure is the theoretical distributive value.
2. the control method of double independent gas handling system engines according to claim 1, which is characterized in that further include:
It is pre-configured with the corresponding relationship of distributive value Yu air inlet pressure force value range.
3. the control method of double independent gas handling system engine according to claim 2, which is characterized in that it is described judge into Whether the air inlet pressure force value of the small side of atmospheric pressure is less than the minimum air inlet pressure force value of theory of the current distributive value in this side, comprising:
According to the corresponding relationship of preconfigured distributive value and air inlet pressure force value range, the oil spout of the small side of admission pressure is determined Measure corresponding air inlet pressure force value range;
Judge whether the air inlet pressure force value of the small side of the admission pressure is less than in the determining admission pressure range most Small air inlet pressure force value.
4. the control method of double independent gas handling system engine according to claim 2, which is characterized in that the basis into The air inlet pressure force value of the small side of atmospheric pressure determines its theoretical distributive value, comprising:
According to the corresponding relationship of preconfigured distributive value and air inlet pressure force value range, the described of the small side of admission pressure is determined One or more air inlet pressure force value ranges locating for air inlet pressure force value;
When the air inlet pressure force value is in multiple air inlet pressure force value ranges, one is determined from the multiple air inlet pressure force value range The admission pressure range of a mean value closest to the air inlet pressure force value is target inlet air pressure limit;
According to the corresponding relationship of preconfigured distributive value and air inlet pressure force value range, the target inlet air pressure limit pair is determined The theoretical distributive value answered.
5. the control method of double independent gas handling system engines according to claim 1, which is characterized in that in the detection Before whether engine two sides admission pressure deviation is more than preset value, further includes:
Determine engine two sides boost pressure signal fault-free.
6. a kind of control device of double independent gas handling system engines characterized by comprising
Air inlet detection module, under engine operating state, detection engine two sides admission pressure deviation whether be more than Preset value;
Judgment module, for detecting motivation two sides admission pressure deviation not less than preset value in the air inlet detection module When, judge whether the air inlet pressure force value of the small side of admission pressure is less than the minimum admission pressure of theory of the current distributive value in this side Value;
Distributive value determining module is used for when the judgment result of the judgment module is yes, according to the small side of admission pressure The air inlet pressure force value determines its theoretical distributive value;
Distributive value control module, the distributive value for controlling the big side of admission pressure are the theoretical distributive value.
7. the control device of double independent gas handling system engines according to claim 6, which is characterized in that further include:
Configuration module, for being pre-configured with the corresponding relationship of distributive value Yu air inlet pressure force value range.
8. the control device of double independent gas handling system engines according to claim 7, which is characterized in that the judgement mould Block includes:
Range determination module determines air inlet for the corresponding relationship according to preconfigured distributive value and air inlet pressure force value range The corresponding air inlet pressure force value range of the distributive value of the small side of pressure;
Judging submodule, for judging whether the air inlet pressure force value of the small side of the admission pressure is less than the determining air inlet Minimum air inlet pressure force value in pressure limit.
9. the control device of double independent gas handling system engines according to claim 7, which is characterized in that the distributive value Determining module includes:
Pressure limit determining module is determined for the corresponding relationship according to preconfigured distributive value and air inlet pressure force value range One or more air inlet pressure force value ranges locating for the air inlet pressure force value of the small side of admission pressure;
Target zone determining module, for when the air inlet pressure force value is in multiple air inlet pressure force value ranges, from the multiple The admission pressure range for determining a mean value closest to the air inlet pressure force value in air inlet pressure force value range is target inlet air pressure Range;
Distributive value determines submodule, for the corresponding relationship according to preconfigured distributive value and air inlet pressure force value range, determines The corresponding theoretical distributive value of the target inlet air pressure limit.
10. the control method of double independent gas handling system engines according to claim 6, which is characterized in that further include:
Signal determining module, for whether being not less than in air inlet detection module detection engine two sides admission pressure deviation Before preset value, engine two sides boost pressure signal fault-free is determined.
CN201811130264.3A 2018-09-27 2018-09-27 Control method and device for engine with double independent air intake systems Active CN109057981B (en)

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CN116907727A (en) * 2023-09-12 2023-10-20 潍柴动力股份有限公司 Method and device for detecting fault of pressure sensor before vortex, vehicle and storage medium
CN116907727B (en) * 2023-09-12 2024-01-12 潍柴动力股份有限公司 Method and device for detecting fault of pressure sensor before vortex, vehicle and storage medium

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