CN107831018B - A kind of burning recognition methods and device - Google Patents
A kind of burning recognition methods and device Download PDFInfo
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- CN107831018B CN107831018B CN201711061968.5A CN201711061968A CN107831018B CN 107831018 B CN107831018 B CN 107831018B CN 201711061968 A CN201711061968 A CN 201711061968A CN 107831018 B CN107831018 B CN 107831018B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
- G01M15/044—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12 by monitoring power, e.g. by operating the engine with one of the ignitions interrupted; by using acceleration tests
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Abstract
The present invention provides a kind of burning recognition methods and devices, this method comprises: obtaining the current value and voltage value of generator, and calculate generator actual power；Calculate engine theoretical power (horse-power)；Calculate the power error value of generator actual power and engine theoretical power (horse-power)；Judge power error value whether in default allowable range of error；If power error value determines that engine is in normal combustion state in default allowable range of error；If power error value in default allowable range of error, does not determine that engine is in abnormal combustion state.Method disclosed by the invention, burning identification can be completed using the current value and voltage value of generator, and the current value and voltage value of generator are the errors for directly being determined by engine, therefore can reducing or even avoid to guarantee analysis result, improve the accuracy of burning identification.
Description
Technical field
The present invention relates to technical field of engine control, more specifically to a kind of burning recognition methods and device.
Background technique
Power source of the engine as automobile burns generated a large amount of harmful mainly using gasoline or diesel oil as fuel
Gas and particulate matter are the important sources of air pollution.Therefore, to meet the requirement of energy-saving and emission-reduction, need to engine combustion mistake
Cheng Jinhang is identified and then is controlled.
Currently, engine combustion identification technology depends on cylinder pressure sensors.Cylinder pressure sensors are constantly surveyed
In-cylinder pressure is measured, engine controller analyzes combustion process using in-cylinder pressure.
But since the pressure of different location in cylinder is not identical, in-cylinder pressure measured by cylinder pressure sensors
It is also only the pressure of its position, not cylinder integral pressure.Therefore, this will be such that the analysis result of engine controller goes out
Existing error, to reduce the accuracy of burning identification.
Summary of the invention
In view of this, the present invention provides a kind of burning recognition methods and device, to solve available engine burning identification skill
Art relies on analysis result brought by cylinder pressure sensors and the problem of error occurs.Technical solution is as follows:
A kind of burning recognition methods is applied to engine controller, comprising:
The current value and voltage value of generator are obtained, and calculates generator actual power；
Calculate engine theoretical power (horse-power)；
Calculate the power error value of the generator actual power and the engine theoretical power (horse-power)；
Judge the power error value whether in default allowable range of error；
If the power error value in the default allowable range of error, determines that the engine is in normal combustion shape
State；
If the power error value not in the default allowable range of error, determines that the engine is in abnormal combustion
State.
Preferably, the current value and voltage value for obtaining generator, comprising:
Receiving signal manages the analog current value and analog voltage for the generator that device is sent, the analog current value and institute
Stating analog voltage is handled by voltage and current signal of the signal conditioner to the generator；
The current value of the generator is calculated according to the analog current value, and according to analog voltage calculating
The voltage value of generator.
Preferably, the calculating engine theoretical power (horse-power), comprising:
Calculate engine output torque；
According to the engine output torque and default engine wear torque, engine net output torque is calculated；
The revolving speed of the engine is obtained, and according to the revolving speed and the engine net output torque, calculates engine
Net power；
According to the engine net power and default efficiency conversion factor, engine theoretical power (horse-power) is calculated.
Preferably, the determination engine is in abnormal combustion state, later, further includes:
Warning information is generated, the warning information is for characterizing engine combustion exception.
Preferably, the generation warning information, comprising:
Determine warning level corresponding to the power error value；Generate the corresponding warning information of the warning level.
A kind of burning identification device characterized by comprising the first computing module, the second computing module, third calculate mould
Block, judgment module, the first determining module and the second determining module；
First computing module for obtaining the current value and voltage value of generator, and calculates generator actual power；
Second computing module, for calculating engine theoretical power (horse-power)；
The third computing module, for calculating the power of the generator actual power and the engine theoretical power (horse-power)
Error amount；
The judgment module, for judging the power error value whether in default allowable range of error；
First determining module, if determining institute in the default allowable range of error for the power error value
It states engine and is in normal combustion state；
Second determining module, if being determined for the power error value not in the default allowable range of error
The engine is in abnormal combustion state.
A kind of burning identification device, comprising: the first computing module, third computing module, judges mould at the second computing module
Block, the first determining module and the second determining module；
First computing module for obtaining the current value and voltage value of generator, and calculates generator actual power；
Second computing module, for calculating engine theoretical power (horse-power)；
The third computing module, for calculating the power of the generator actual power and the engine theoretical power (horse-power)
Error amount；
The judgment module, for judging the power error value whether in default allowable range of error；
First determining module, if determining institute in the default allowable range of error for the power error value
It states engine and is in normal combustion state；
Second determining module, if being determined for the power error value not in the default allowable range of error
The engine is in abnormal combustion state.
Preferably, for obtaining the current value of generator and first computing module of voltage value, it is specifically used for:
Receiving signal manages the analog current value and analog voltage for the generator that device is sent, the analog current value and institute
Stating analog voltage is handled by voltage and current signal of the signal conditioner to the generator；According to the mould
Quasi- current value calculates the current value of the generator, and the voltage value of the generator is calculated according to the analog voltage.
Preferably, second computing module, is specifically used for:
Calculate engine output torque；According to the engine output torque and default engine wear torque, hair is calculated
The net output torque of motivation；The revolving speed of the engine is obtained, and according to the revolving speed and the engine net output torque, is calculated
Engine net power；According to the engine net power and default efficiency conversion factor, engine theoretical power (horse-power) is calculated.
Preferably, second determining module, later, further includes: information generating module；
The information generating module, for generating warning information, the warning information is for characterizing engine combustion exception.
Preferably, the information generating module, is specifically used for:
Determine warning level corresponding to the power error value；Generate the corresponding warning information of the warning level.
Compared to the prior art, what the present invention realized has the beneficial effect that
The above present invention provides a kind of burning recognition methods and device, and the current value and voltage value that can obtain generator calculate
Generator actual power, and then engine theoretical power (horse-power) is combined to calculate power error value, to be determined again based on power error value
The combustion state of engine.
Method disclosed by the invention can be completed burning using the current value and voltage value of generator and identify, and generator
Current value and voltage value be directly determined by engine, therefore can reduce or even avoid guarantee analysis result error, mention
The accuracy of height burning identification.
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 burning recognition methods provided in an embodiment of the present invention；
Fig. 2 is the Part Methods flow chart of burning recognition methods provided in an embodiment of the present invention；
Fig. 3 is the another Part Methods flow chart of burning recognition methods provided in an embodiment of the present invention；
Fig. 4 is the another method flow diagram of burning recognition methods provided in an embodiment of the present invention；
Fig. 5 is another Part Methods flow chart of burning recognition methods provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of burning identification device provided in an embodiment of the present invention；
Fig. 7 is the another structural schematic diagram of burning identification 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 burning recognition methods, and this method is applied to engine controller, method flow diagram
As shown in Figure 1, including the following steps:
S10, obtains the current value and voltage value of generator, and calculates generator actual power；
During executing step S10, engine controller can be believed by the current signal and voltage for acquiring generator
Number determine the current value and voltage value of generator, and the voltage signal and current signal due to generation current machine can not be by engines
Controller Direct Recognition, therefore, using the voltage signal and current signal of intermediate equipment acquisition generator, and then again by starting
Machine controller obtains the current value and voltage value of generator, and formula (1) is calculated as follows and calculates generator actual power:
P1=I*U (1)
Wherein, P1For generator actual power, I is the current value of generator, and U is the voltage value of generator.
During specific implementation, the process of " current value and voltage value that obtain generator " in step S10 can be specific
Using following steps, method flow diagram is as shown in Figure 2:
S101, receiving signal manage the analog current value and analog voltage of the generator that device is sent, the analog current
Value and the analog voltage are handled by voltage and current signal of the signal conditioner to generator；
During executing step S101, a signal conditioner is set between generator and engine controller, it should
Signal conditioner can obtain the original signal of generator, that is, the current signal and voltage signal of generator, and then respectively will
The current signal and voltage signal of generator are converted to low level, such as the current signal and voltage signal of 0~5V, engine control
Device processed can be by two-way analog quantity by acquiring low level current signal and low level voltage signal, so that it is determined that generator
Analog current value and analog voltage.
S102 calculates the current value of generator according to analog current value, and the electricity of generator is calculated according to analog voltage
Pressure value；
During executing step S102, engine controller can determine the electric current of generator using default transformation rule
Value and voltage value, specifically, default transformation rule is related with reduction multiple of the signal conditioner to level.
S20 calculates engine theoretical power (horse-power)；
During executing step S20, it can be determined according to the current working of engine, such as according to the revolving speed of engine
The distributive value of engine, and then engine theoretical power (horse-power) is determined according to the revolving speed of engine and distributive value, specifically, determination is started
The current distributive value of machine can be directly acquired from preset rotation speed-distributive value curve, can also be had between revolving speed and distributive value by record
It is obtained in the MAP of mapping relations, this implementation is not specifically limited.
During specific implementation, the process of step S20 " calculating engine theoretical power (horse-power) " can specifically use following step
Suddenly, method flow diagram is as shown in Figure 3:
S201 calculates engine output torque；
During executing step S201, the output torque of engine is related with the revolving speed of engine and distributive value, can
It is determined using the mapping relations between (revolving speed, the distributive value) that pre-establishes and output torque, concrete form can be curve, may be used also
For MAP table etc., the present embodiment is not specifically limited.
S202 calculates engine net output torque according to engine output torque and default engine wear torque；
During executing step S202, since there are engine self friction damages during torque exports for engine
Therefore the loss of consumption and accessory loss, such as vehicle air conditioning etc. when calculating engine net output torque, needs consideration to start
Torque is lost in machine, and the engine wear torque includes but is not limited to engine friction torque and accessory loss torque.
During executing step S202, formula (2) can be calculated as follows and calculate generator actual power:
T=T1-T2 (2)
Wherein, T is engine net output torque, T1For engine output torque, T2To preset engine wear torque.
S203 obtains the revolving speed of engine, and according to revolving speed and engine net output torque, calculates engine net power；
During executing step S203, formula (3) can be calculated as follows and calculate engine net power:
Wherein, P2It is the revolving speed of N engine for engine net power.
S204 calculates engine theoretical power (horse-power) according to engine net power and default efficiency conversion factor；
During executing step S204, formula (4) can be calculated as follows and calculate engine theoretical power (horse-power):
P3=P2*α (4)
Wherein, P3For engine theoretical power (horse-power), α is default efficiency conversion factor.
S30 calculates the power error value of generator actual power and engine theoretical power (horse-power)；
During executing step S30, formula (5) can be calculated as follows and calculate power error value:
Wherein, ε is power error value.
Whether S40 judges power error value in default allowable range of error；If so, thening follow the steps S50；If it is not, then
Execute step S60；
S50 determines that engine is in normal combustion state；
S60 determines that engine is in abnormal combustion state.
Above step S101~step S102 is only " to obtain the current value of generator in the embodiment of the present application step S10
And voltage value " process a kind of preferred implementation, the specific implementation in relation to this process can be according to their own needs
Any setting, it is not limited here.
Above step S201~step S204 is only " to calculate engine theoretical power (horse-power) " in the embodiment of the present application step S20
Process a kind of preferred implementation, the specific implementation in relation to this process can arbitrarily be arranged according to their own needs,
It is not limited here.
Burning can be completed using the current value and voltage value of generator in burning recognition methods provided in an embodiment of the present invention
Identification, and the current value of generator and voltage value are directly to be determined by engine, therefore can reduce or even avoid to guarantee to analyze
As a result error improves the accuracy of burning identification.
The burning recognition methods provided based on the above embodiment, the embodiment of the present invention then provide another burning identification side
Method, method flow diagram is as shown in figure 4, include the following steps:
S10, obtains the current value and voltage value of generator, and calculates generator actual power；
S20 calculates engine theoretical power (horse-power)；
S30 calculates the power error value of generator actual power and engine theoretical power (horse-power)；
Whether S40 judges power error value in default allowable range of error；If so, thening follow the steps S50；If it is not, then
Execute step S60；
S50 determines that engine is in normal combustion state；
S60 determines that engine is in abnormal combustion state；
S70 generates warning information, and the warning information is for characterizing engine combustion exception.
It is abnormal for prompt driver's engine combustion, can after step S50 determines that engine is in abnormal combustion state,
Generate warning information；Prior-warning device can remind driver that engine combustion is different in a preset form after receiving the warning information
Often, for example, prior-warning device can be warning light, it is also possible to middle control large-size screen monitors, warning light lights, flashes or turn colors, in
Control large-size screen monitors, which play image or play sound, can prompt driver.
In addition, in burning recognition methods provided in an embodiment of the present invention step S10~step S60 implementation procedure with it is upper
State in embodiment that step S10~step S60 is consistent, details are not described herein, please refers to part disclosed in the above embodiment of the present invention.
During specific implementation, the process for " generating warning information " in step S70 can specifically use following steps,
Method flow diagram is as shown in Figure 5:
S701 determines warning level corresponding to power error value；
During executing step S701, multiple warning levels are preset, for example, power error value is less than or equal to
It is yellow early warning when 0.5；Then it is red early warning when power error value is greater than 0.5, can be determined at this time according to power error value
Warning level.
S702 generates the corresponding warning information of warning level.
It, can be according to the warning information for presetting each warning level, for example, yellow during executing step S702
When early warning, generate for characterizing the first bright warning information of amber light；And when red early warning, then generate for characterize red light it is bright the
Warning information is sent to warning light in turn by two warning information, so that corresponding lamp is lighted in warning light generation, it is certainly, also settable
Other warning information, the present embodiment are not specifically limited.
Burning recognition methods provided in an embodiment of the present invention is reducing the premise for even avoiding the error of guarantee analysis result
Under, it also produces warning information and prompts driver, improve drive safety.
Based on the burning recognition methods that the various embodiments described above provide, the embodiment of the present invention, which then provides, executes above-mentioned burning identification
The device of method, structural schematic diagram are as shown in Figure 6, comprising: the first computing module 10, the second computing module 20, third calculate
Module 30, judgment module 40, the first determining module 50 and the second determining module 60；
First computing module 10 for obtaining the current value and voltage value of generator, and calculates generator actual power；
Second computing module 20, for calculating engine theoretical power (horse-power)；
Third computing module 30, for calculating the power error value of generator actual power and engine theoretical power (horse-power)；
Judgment module 40, for judging power error value whether in default allowable range of error；
First determining module 50, if determining that engine is in just for power error value in default allowable range of error
Normal combustion state；
Second determining module 60, if determining that engine is in not in default allowable range of error for power error value
Abnormal combustion state.
Optionally, for obtaining the current value of generator and the first computing module 10 of voltage value, it is specifically used for:
Receiving signal manages the analog current value and analog voltage for the generator that device is sent, the analog current value and institute
Stating analog voltage is handled by voltage and current signal of the signal conditioner to generator；It is calculated according to analog current value
The current value of generator, and according to the voltage value of analog voltage calculating generator.
Optionally, the second computing module 20, is specifically used for:
Calculate engine output torque；According to engine output torque and default engine wear torque, engine is calculated
Net output torque；The revolving speed of engine is obtained, and according to revolving speed and engine net output torque, calculates engine net power；According to
According to engine net power and default efficiency conversion factor, engine theoretical power (horse-power) is calculated.
Burning can be completed using the current value and voltage value of generator in burning identification device provided in an embodiment of the present invention
Identification, and the current value of generator and voltage value are directly to be determined by engine, therefore can reduce or even avoid to guarantee to analyze
As a result error improves the accuracy of burning identification.
The burning identification device provided based on the above embodiment, the present invention provide another burning identification device, structure
Schematic diagram is as shown in fig. 7, the second determining module 60, later, further includes: information generating module 70；
Information generating module 70, for generating warning information, the warning information is for characterizing engine combustion exception.
Optionally, information generating module 70 are specifically used for:
Determine warning level corresponding to power error value；Generate the corresponding warning information of warning level.
Burning identification device provided in an embodiment of the present invention is reducing the premise for even avoiding the error of guarantee analysis result
Under, it also produces warning information and prompts driver, improve drive safety.
A kind of burning recognition methods provided by the present invention and device are described in detail above, it is used herein
A specific example illustrates the principle and implementation of the invention, and the above embodiments are only used to help understand originally
The method and its core concept of invention；At the same time, for those skilled in the art, according to the thought of the present invention, specific
There will be changes in embodiment and application range, in conclusion the content of the present specification should not be construed as to of the invention
Limitation.
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 burning recognition methods, which is characterized in that be applied to engine controller, comprising:
The current value and voltage value of generator are obtained, and calculates generator actual power；
Calculate engine theoretical power (horse-power)；
Calculate the power error value of the generator actual power and the engine theoretical power (horse-power)；
Judge the power error value whether in default allowable range of error；
If the power error value in the default allowable range of error, determines that the engine is in normal combustion state；
If the power error value not in the default allowable range of error, determines that the engine is in abnormal combustion shape
State.
2. the method according to claim 1, wherein the current value and voltage value for obtaining generator, comprising:
Receiving signal manages the analog current value and analog voltage for the generator that device is sent, the analog current value and the mould
Quasi- voltage value is handled by voltage and current signal of the signal conditioner to the generator；
The current value of the generator is calculated according to the analog current value, and the power generation is calculated according to the analog voltage
The voltage value of machine.
3. the method according to claim 1, wherein the calculating engine theoretical power (horse-power), comprising:
Calculate engine output torque；
According to the engine output torque and default engine wear torque, engine net output torque is calculated；
The revolving speed of the engine is obtained, and according to the revolving speed and the engine net output torque, calculates engine net work
Rate；
According to the engine net power and default efficiency conversion factor, engine theoretical power (horse-power) is calculated.
4. according to claim 1 to method described in 3 any one, which is characterized in that the determination engine is in different
Normal combustion state, later, further includes:
Warning information is generated, the warning information is for characterizing engine combustion exception.
5. according to the method described in claim 4, it is characterized in that, the generation warning information, comprising:
Determine warning level corresponding to the power error value；
Generate the corresponding warning information of the warning level.
6. a kind of burning identification device characterized by comprising the first computing module, the second computing module, third calculate mould
Block, judgment module, the first determining module and the second determining module；
First computing module for obtaining the current value and voltage value of generator, and calculates generator actual power；
Second computing module, for calculating engine theoretical power (horse-power)；
The third computing module, for calculating the power error of the generator actual power and the engine theoretical power (horse-power)
Value；
The judgment module, for judging the power error value whether in default allowable range of error；
First determining module, if determining the hair in the default allowable range of error for the power error value
Motivation is in normal combustion state；
Second determining module, if for the power error value not in the default allowable range of error, described in determination
Engine is in abnormal combustion state.
7. device according to claim 6, which is characterized in that for obtaining described in the current value and voltage value of generator
First computing module, is specifically used for:
Receiving signal manages the analog current value and analog voltage for the generator that device is sent, the analog current value and the mould
Quasi- voltage value is handled by voltage and current signal of the signal conditioner to the generator；According to the simulation electricity
Flow valuve calculates the current value of the generator, and the voltage value of the generator is calculated according to the analog voltage.
8. device according to claim 6, which is characterized in that second computing module is specifically used for:
Calculate engine output torque；According to the engine output torque and default engine wear torque, engine is calculated
Net output torque；The revolving speed of the engine is obtained, and according to the revolving speed and the engine net output torque, calculating is started
Machine net power；According to the engine net power and default efficiency conversion factor, engine theoretical power (horse-power) is calculated.
9. according to device described in claim 6 to 8 any one, which is characterized in that second determining module, later, also
It include: information generating module；
The information generating module, for generating warning information, the warning information is for characterizing engine combustion exception.
10. device according to claim 9, which is characterized in that the information generating module is specifically used for:
Determine warning level corresponding to the power error value；Generate the corresponding warning information of the warning level.
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| CN201711061968.5A CN107831018B (en) | 2017-11-02 | 2017-11-02 | A kind of burning recognition methods and device |
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| CN110966110B (en) * | 2019-12-20 | 2022-04-26 | 潍柴动力股份有限公司 | Engine exhaust gas recirculation method and device |
| CN111038490B (en) * | 2019-12-26 | 2021-12-28 | 联合汽车电子有限公司 | Method and system for identifying engine combustion and readable storage medium |
| CN112161742B (en) * | 2020-09-30 | 2022-09-23 | 潍柴动力股份有限公司 | Power sensor detection method, device, equipment and storage medium |
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| JP3351932B2 (en) * | 1995-09-13 | 2002-12-03 | 日本特殊陶業株式会社 | Method and apparatus for detecting combustion state of internal combustion engine |
| CN101614161B (en) * | 2009-07-24 | 2013-01-02 | 广东力宇新能源科技有限公司 | Device for controlling air-fuel ratio |
| CN102207054B (en) * | 2010-03-31 | 2013-03-13 | 比亚迪股份有限公司 | Knock control system and method of hybrid vehicle |
| FR2979766B1 (en) * | 2011-09-01 | 2015-03-13 | Leroy Somer Moteurs | METHOD FOR REGULATING AN ELECTROGEN GROUP |
| DE102014211625A1 (en) * | 2014-06-17 | 2015-12-17 | Robert Bosch Gmbh | Power control device for a motor control device, engine control device and engine system |
| CN204283632U (en) * | 2014-11-27 | 2015-04-22 | 福建唐力电力设备有限公司 | Generator set Intelligent integrated formula controller |
| CN106197590A (en) * | 2016-06-30 | 2016-12-07 | 苏州德锐朗智能科技有限公司 | A kind of electromotor amount of fuel wireless supervisory control system driven by the engine and method |
| CN107167732A (en) * | 2017-06-20 | 2017-09-15 | 北京奥博汽车电子电器有限公司 | Automobile generator efficiency automatic testing equipment |
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