CN109306914A - A kind of large bore engine control method and device - Google Patents
A kind of large bore engine control method and device Download PDFInfo
- Publication number
- CN109306914A CN109306914A CN201811123767.8A CN201811123767A CN109306914A CN 109306914 A CN109306914 A CN 109306914A CN 201811123767 A CN201811123767 A CN 201811123767A CN 109306914 A CN109306914 A CN 109306914A
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- Prior art keywords
- cylinder
- distributive value
- engine
- delivery temperature
- percentage
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/008—Controlling each cylinder individually
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1446—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being exhaust temperatures
Abstract
The present invention provides a kind of large bore engine control method and device, this method comprises: obtaining the delivery temperature of engine two sides cylinder；The temperature deviation between delivery temperature is calculated, and judges temperature deviation whether in predetermined deviation allowed band；If not, determine the maximum distributive value limitation percentage of the highest target cylinder of delivery temperature in the cylinder of engine two sides, and maximum distributive value limitation percentage is sent to the corresponding controller of target cylinder, so that the controller for receiving maximum distributive value limitation percentage carries out oil spout according to maximum distributive value limitation percentage control target cylinder.The present invention limits delivery temperature highest in the cylinder of engine two sides by the temperature deviation of detection delivery temperature, the namely distributive value of the highest target cylinder of power, alleviate the problem for even avoiding engine two sides cylinder output inconsistent, ensure that engine crankshaft turns round shake minimum, to improve engine mechanical life.
Description
Technical field
The present invention relates to technical field of engine control, more specifically to a kind of large bore engine control method
And device.
Background technique
Large bore engine uses dual controller, and cylinder is arranged in two sides with V-structure, and the cylinder of every side is by dual controller
In a controller control oil spout.
Since the abrasion of body two sides cylinder wear, valve clearance or fuel injector is inconsistent in long-time use process,
It is possible that the problem that engine two sides cylinder output is inconsistent.And when engine long-time, full load run on this
It under operating condition, just will appear engine two sides detonation pressure, air leakage different problems, be finally applied on crankshaft and turn round shake difference, grow this
The serious consequence that will lead to Crank shaft Damage in the past, be even broken is serious to damage engine mechanical life.
Summary of the invention
In view of this, to solve the above problems, the present invention provides a kind of large bore engine control method and device, technology
Scheme is as follows:
A kind of large bore engine control method, which comprises
Obtain the delivery temperature of engine two sides cylinder；
The temperature deviation between the delivery temperature is calculated, and judges the temperature deviation whether in predetermined deviation permission model
In enclosing；
If it is not, determining the maximum distributive value limitation hundred of the highest target cylinder of delivery temperature in the cylinder of the engine two sides
Divide ratio, and the maximum distributive value limitation percentage is sent to the corresponding controller of the target cylinder, so as to receive institute
The controller for stating maximum distributive value limitation percentage controls the target gas according to the maximum distributive value limitation percentage
Cylinder carries out oil spout.
Preferably, in the determination engine two sides cylinder the highest target cylinder of delivery temperature maximum distributive value
Limit percentage, comprising:
Obtain the distributive value and admission pressure of the highest target cylinder of delivery temperature in the cylinder of the engine two sides；
Obtain preset theory distributive value corresponding to the admission pressure, and by the theoretical distributive value and the oil spout
The ratio of amount limits percentage as maximum distributive value.
Preferably, before calculating the temperature deviation between the delivery temperature, the method also includes:
Credible detection is carried out to the delivery temperature, and in the believable situation of the delivery temperature, executes the meter
The temperature deviation between the delivery temperature is calculated, the step for.
Preferably, the method also includes:
In the incredible situation of the delivery temperature, preset peak torque limitation percentage is sent to described start
The corresponding controller of machine two sides cylinder, so as to receive the controller of the peak torque limitation percentage according to institute
It states peak torque limitation percentage and controls corresponding cylinder progress oil spout.
Preferably, the method also includes:
If so, generating for characterizing the normal prompt information of engine row's temperature.
A kind of large bore engine control device, described device include:
Module is obtained, for obtaining the delivery temperature of engine two sides cylinder；
Judgment module, for calculating the temperature deviation between the delivery temperature, and judge the temperature deviation whether
In predetermined deviation allowed band；If it is not, then triggering determining module；
The determining module, for determining the maximum of the highest target cylinder of delivery temperature in the cylinder of the engine two sides
Distributive value limits percentage, and the maximum distributive value limitation percentage is sent to the corresponding controller of the target cylinder,
So as to receive the controller of the maximum distributive value limitation percentage according to the maximum distributive value limitation percentage control
It makes the target cylinder and carries out oil spout.
Preferably, for determining the maximum distributive value of the highest target cylinder of delivery temperature in the cylinder of the engine two sides
The determining module for limiting percentage, is specifically used for:
Obtain the distributive value and admission pressure of the highest target cylinder of delivery temperature in the cylinder of the engine two sides；It obtains
Preset theory distributive value corresponding to the admission pressure, and using the ratio of the theoretical distributive value and the distributive value as
Maximum distributive value limits percentage.
Preferably, described device further include:
Detection module, for carrying out credible detection, and the situation credible in the delivery temperature to the delivery temperature
Under, trigger the judgment module.
Preferably, described device further include:
Sending module, in the incredible situation of the delivery temperature, preset peak torque to be limited percentage
It is sent to the corresponding controller of engine two sides cylinder, so as to receive the institute of the peak torque limitation percentage
It states controller and controls corresponding cylinder progress oil spout according to peak torque limitation percentage.
Preferably, described device further include:
Generation module, for if so, generating for characterizing the normal prompt information of engine row's temperature.
Compared to the prior art, what the present invention realized has the beneficial effect that
The above present invention provides a kind of large bore engine control method and device, inclined by the temperature for detecting delivery temperature
Delivery temperature highest in difference limitation engine two sides cylinder, that is, the distributive value of the highest target cylinder of power, alleviate even
The problem for avoiding engine two sides cylinder output inconsistent, it is ensured that engine crankshaft turns round shake minimum, to improve engine
Mechanical 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 the method flow diagram of large bore engine control method provided in an embodiment of the present invention；
Fig. 2 is the another method flow chart of large bore engine control method provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of large bore engine control device provided in an embodiment 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.
The embodiment of the present invention provides a kind of large bore engine control method, the method flow diagram of this method as shown in Figure 1,
Include the following steps:
S10 obtains the delivery temperature of engine two sides cylinder.
Method provided by the present embodiment can be applied to any one in dual controller used by large bore engine
It is a, entire car controller can also be applied to.It is illustrated by taking the master controller being applied in dual controller as an example:
Master controller obtains the delivery temperature of respective cylinder, and receives the slave controller fed back from controller and correspond to cylinder
Delivery temperature.
Whether S20 calculates the temperature deviation between delivery temperature, and judges temperature deviation in predetermined deviation allowed band
It is interior；If it is not, thening follow the steps S30.
In the present embodiment, if temperature deviation is in predetermined deviation allowed band, then it represents that engine row's temperature is normal, generates
For characterizing the normal prompt information of engine row's temperature.
S30 determines the maximum distributive value limitation percentage of the highest target cylinder of delivery temperature in the cylinder of engine two sides,
And maximum distributive value limitation percentage is sent to the corresponding controller of target cylinder, so as to receive maximum distributive value limitation hundred
The controller of ratio is divided to carry out oil spout according to maximum distributive value limitation percentage control target cylinder.
During executing step S30, the maximum distributive value limitation percentage of the highest target cylinder of delivery temperature can
According to the lookup of the temperature deviation demarcated in advance and the corresponding relationship of maximum distributive value limitation percentage；Cylinder can also be passed through
Admission pressure determine, it is specific:
The distributive value and admission pressure of the highest target cylinder of delivery temperature in the cylinder of engine two sides are obtained first；It obtains
Preset theory distributive value corresponding to admission pressure, and using the ratio of theoretical distributive value and distributive value as maximum distributive value limit
Percentage processed.
It should be noted that can distributive value corresponding to theory of calibration enterprising atmospheric pressure in advance.
In addition, controller can be limited when receiving maximum distributive value limitation percentage first with maximum distributive value
Percentage and current distributive value calculate target distributive value, and specific target distributive value is equal to maximum distributive value limitation percentage and works as
The product of preceding distributive value further controls target cylinder according to target distributive value and carries out oil spout.
In some other embodiment, to guarantee the accuracy controlled, large bore engine control method shown in Fig. 1
On the basis of, further include following steps:
S40 carries out credible detection to delivery temperature, and in the believable situation of delivery temperature, executes step S20.
During executing step S40, the exhaust temperature signal voltage or exhaust temperature to delivery temperature can be passed through
Angle value is detected, and is judged whether within a preset range, on the contrary then insincere if indicating that delivery temperature is credible if.
Further, if delivery temperature is insincere, preset peak torque can be limited percentage and is sent to and started
The corresponding controller of machine two sides cylinder, so that the controller for receiving peak torque limitation percentage is limited according to peak torque
Percentage processed controls corresponding cylinder and carries out oil spout.It is specific:
Controller is receiving peak torque limitation percentage, limits percentage and current torque first with peak torque
Target torque is calculated, and then carries out oil spout using the control cylinder of distributive value corresponding to target torque.
Large bore engine control method provided in an embodiment of the present invention, the temperature deviation by detecting delivery temperature limit
Delivery temperature highest in the cylinder of engine two sides, that is, the distributive value of the highest target cylinder of power are alleviated and even avoid sending out
The inconsistent problem of motivation two sides cylinder output, it is ensured that it is minimum that engine crankshaft turns round shake, to improve the engine mechanical longevity
Life.
The large bore engine control method provided based on the above embodiment, then corresponding provide executes the embodiment of the present invention
The device of large bore engine control method is stated, the structural schematic diagram of the device is as shown in Figure 3, comprising:
Module 10 is obtained, for obtaining the delivery temperature of engine two sides cylinder；
Whether judgment module 20 for calculating the temperature deviation between delivery temperature, and judges temperature deviation default inclined
In poor allowed band；If it is not, then triggering determining module 30；
Determining module 30, for determining the maximum distributive value of the highest target cylinder of delivery temperature in the cylinder of engine two sides
Percentage is limited, and maximum distributive value limitation percentage is sent to the corresponding controller of target cylinder, so as to receive maximum
The controller that distributive value limits percentage carries out oil spout according to maximum distributive value limitation percentage control target cylinder.
Optionally, for determining that the maximum distributive value of the highest target cylinder of delivery temperature in the cylinder of engine two sides limits
The determining module 30 of percentage, is specifically used for:
Obtain the distributive value and admission pressure of the highest target cylinder of delivery temperature in the cylinder of engine two sides；Obtain air inlet
Preset theory distributive value corresponding to pressure, and using the ratio of theoretical distributive value and distributive value as maximum distributive value limitation hundred
Divide ratio.
Optionally, further include following module on the basis of large bore engine control device shown in Fig. 3:
Detection module, for carrying out credible detection to delivery temperature, and in the believable situation of delivery temperature, triggering is sentenced
Disconnected module 20.
Optionally, further include following module on the basis of large bore engine control device shown in Fig. 3:
Sending module, in the incredible situation of delivery temperature, preset peak torque limitation percentage to be sent
To the corresponding controller of engine two sides cylinder, so as to receive the controller of peak torque limitation percentage according to maximum
Torque limit percentage controls corresponding cylinder and carries out oil spout.
Optionally, further include following module on the basis of large bore engine control device shown in Fig. 3:
Generation module, for if so, generating for characterizing the normal prompt information of engine row's temperature.
Large bore engine control device provided in an embodiment of the present invention, the temperature deviation by detecting delivery temperature limit
Delivery temperature highest in the cylinder of engine two sides, that is, the distributive value of the highest target cylinder of power are alleviated and even avoid sending out
The inconsistent problem of motivation two sides cylinder output, it is ensured that it is minimum that engine crankshaft turns round shake, to improve the engine mechanical longevity
Life.
A kind of large bore engine control method and device provided by the present invention are described in detail above, herein
In apply that a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to sides
Assistant solves method and its core concept of the invention；At the same time, for those skilled in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
Limitation of the invention.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For the device disclosed in the embodiment, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, phase
Place is closed referring to method part illustration.
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 element that the process, method, article or equipment including a series of elements is intrinsic,
It further include either the element intrinsic for these process, method, article or equipments.In the absence of more restrictions,
The element limited by sentence "including a ...", it is not excluded that in the process, method, article or equipment including the element
In there is also other identical elements.
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 large bore engine control method, which is characterized in that the described method includes:
Obtain the delivery temperature of engine two sides cylinder；
The temperature deviation between the delivery temperature is calculated, and judges the temperature deviation whether in predetermined deviation allowed band
It is interior；
If it is not, determining that the maximum distributive value of the highest target cylinder of delivery temperature in the cylinder of the engine two sides limits percentage
Than, and the maximum distributive value limitation percentage is sent to the corresponding controller of the target cylinder, so as to receive described
The controller of maximum distributive value limitation percentage controls the target cylinder according to the maximum distributive value limitation percentage
Carry out oil spout.
2. the method according to claim 1, wherein delivery temperature in the determination engine two sides cylinder
The maximum distributive value of highest target cylinder limits percentage, comprising:
Obtain the distributive value and admission pressure of the highest target cylinder of delivery temperature in the cylinder of the engine two sides；
Obtain preset theory distributive value corresponding to the admission pressure, and by the theoretical distributive value and the distributive value
Ratio limits percentage as maximum distributive value.
3. the method according to claim 1, wherein calculate the temperature deviation between the delivery temperature it
Before, the method also includes:
Credible detection is carried out to the delivery temperature, and in the believable situation of the delivery temperature, executes the calculating institute
The temperature deviation between delivery temperature is stated, the step for.
4. according to the method described in claim 3, it is characterized in that, the method also includes:
In the incredible situation of the delivery temperature, preset peak torque limitation percentage is sent to the engine two
The corresponding controller of side cylinder so that receive the controller of peak torque limitation percentage according to it is described most
Large torque limits percentage and controls corresponding cylinder progress oil spout.
5. the method according to claim 1, wherein the method also includes:
If so, generating for characterizing the normal prompt information of engine row's temperature.
6. a kind of large bore engine control device, which is characterized in that described device includes:
Module is obtained, for obtaining the delivery temperature of engine two sides cylinder；
Whether judgment module for calculating the temperature deviation between the delivery temperature, and judges the temperature deviation default
In deviation allowed band；If it is not, then triggering determining module；
The determining module, for determining the maximum oil spout of the highest target cylinder of delivery temperature in the cylinder of the engine two sides
Amount limitation percentage, and the maximum distributive value limitation percentage is sent to the corresponding controller of the target cylinder, so that
The controller of the maximum distributive value limitation percentage is received according to the maximum distributive value limitation percentage control institute
It states target cylinder and carries out oil spout.
7. device according to claim 6, which is characterized in that for determining delivery temperature in the cylinder of the engine two sides
The determining module of the maximum distributive value limitation percentage of highest target cylinder, is specifically used for:
Obtain the distributive value and admission pressure of the highest target cylinder of delivery temperature in the cylinder of the engine two sides；Described in acquisition
Preset theory distributive value corresponding to admission pressure, and using the ratio of the theoretical distributive value and the distributive value as maximum
Distributive value limits percentage.
8. device according to claim 6, which is characterized in that described device further include:
Detection module, for carrying out credible detection to the delivery temperature, and in the believable situation of the delivery temperature, touching
Send out judgment module described.
9. device according to claim 8, which is characterized in that described device further include:
Sending module, in the incredible situation of the delivery temperature, preset peak torque limitation percentage to be sent
To the corresponding controller of engine two sides cylinder, so as to receive the control of the peak torque limitation percentage
Device processed controls corresponding cylinder according to peak torque limitation percentage and carries out oil spout.
10. device according to claim 6, which is characterized in that described device further include:
Generation module, for if so, generating for characterizing the normal prompt information of engine row's temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123767.8A CN109306914B (en) | 2018-09-26 | 2018-09-26 | Large-cylinder-diameter engine control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123767.8A CN109306914B (en) | 2018-09-26 | 2018-09-26 | Large-cylinder-diameter engine control method and device |
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| Publication Number | Publication Date |
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| CN109306914A true CN109306914A (en) | 2019-02-05 |
| CN109306914B CN109306914B (en) | 2022-06-28 |
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Cited By (3)
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| CN110284970A (en) * | 2019-06-29 | 2019-09-27 | 潍柴动力股份有限公司 | A kind of method for detecting abnormality and device |
| CN112943467A (en) * | 2021-02-05 | 2021-06-11 | 潍柴动力股份有限公司 | Injection correction method and system for engine exhaust temperature consistency and storage medium |
| CN114233500A (en) * | 2021-12-22 | 2022-03-25 | 潍柴动力股份有限公司 | Control method for working uniformity of cylinders of large-cylinder-diameter diesel engine and diesel engine |
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| CN109306914B (en) | 2022-06-28 |
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