CN105422300A - Engine control method and system - Google Patents
Engine control method and system Download PDFInfo
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- CN105422300A CN105422300A CN201510868332.6A CN201510868332A CN105422300A CN 105422300 A CN105422300 A CN 105422300A CN 201510868332 A CN201510868332 A CN 201510868332A CN 105422300 A CN105422300 A CN 105422300A
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- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention relates to an engine control method and system. The method includes the steps that operation parameters of an engine are collected, and the rotation speed and the torque of the engine are obtained; according to the rotation speed and the torque of the engine, the operation work condition diagram of the engine is obtained; the operation work condition diagram is compared with the universal characteristic curve of the engine, so that the rotation speed interval and the torque interval, with the load rate larger than a preset threshold value, of the engine are obtained; and according to the rotation speed interval and the torque interval of the engine, the operation parameters of the engine are adjusted. By the adoption of the engine control method and system, the operation parameters of the engine are monitored and analyzed, the engine is controlled to run to an economical fuel consumption region, and the operation cost of the engine is reduced.
Description
Technical field
The present invention relates to engine art, particularly relate to a kind of engine control and system.
Background technique
The ratio of the maximum effective power that Rate of load condensate can send under referring to the useful horsepower that motor sends under specific rotation speeds and same rotational speed.Economical consumption of fuel district refers to the operation interval that motor oil consumption in running is minimum.Improve the Rate of load condensate of motor and make engine running can improve the Economy of motor operation in economical consumption of fuel district, to save operating cost.
Four kinds of Operational Limitss of motor can only be detected in engine control of the prior art; comprise engine speed, water temperature, oil temperature, engine oil pressure; record cannot be carried out to corresponding parameter; practical oil consumption and the suction pressure of motor cannot be detected; by manually monitoring engine instruments; manual shut-down when breaking down, cannot realize the automatic control of motor.Make engine running low in the method efficiency in economical consumption of fuel district in prior art, use the direct monitoring engine torque poor practicability of torque sensor, cause motor vehicle fuel consumption large, operating cost is high.
Summary of the invention
Technical problem to be solved by this invention is: existingly make the problem that engine running is large at the low motor vehicle fuel consumption caused of the method efficiency in economical consumption of fuel district, operating cost is high.
For solving the problems of the technologies described above, one aspect of the present invention proposes a kind of engine control, and the method comprises:
Gather the Operational Limits of motor, obtain rotating speed and the moment of torsion of motor;
According to the rotating speed of described motor and the operating conditions figure of moment of torsion acquisition motor;
Contrasted by the universal characteristic curve of described operating conditions figure and motor, the Rate of load condensate obtaining motor is greater than rotating speed interval and the moment of torsion interval of predetermined threshold;
Interval and the interval Operational Limits adjusting motor of moment of torsion according to the rotating speed of described motor.
Alternatively, the Operational Limits of described collection motor, obtains rotating speed and the moment of torsion of motor, comprising:
Gather the rotating speed of motor, water temperature and suction pressure;
Obtain the rotating speed of motor;
The water temperature of the motor of collection and suction pressure and fuel consume and engine standard Operational Limits are compared, obtains the actual torque under each working speed of motor.
Alternatively, the described universal characteristic curve by described operating conditions figure and motor contrasts, and comprising:
Rotating speed in the universal characteristic curve of the rotating speed in described operating conditions figure and moment of torsion and motor and moment of torsion are contrasted.
Alternatively, the Operational Limits of described collection motor, also comprises:
Gather the oil temperature of motor, engine oil pressure and oil consumption.
Alternatively, the method also comprises:
The safe operation parameter threshold of the Operational Limits of the motor of collection and motor is compared;
If the Operational Limits of the motor gathered is greater than the safe operation parameter threshold of described motor, report to the police.
Alternatively, the method also comprises:
The Operational Limits of the motor of collection and predetermined stoppage protection parameter threshold are compared;
If the Operational Limits of the motor gathered is greater than described stoppage protection parameter threshold, then motor is made to shut down.
Alternatively, described stoppage protection parameter threshold is greater than described safe operation parameter threshold.
On the other hand, the invention allows for a kind of engine control system, this system comprises:
Operational Limits collecting unit, for gathering the Operational Limits of motor, obtains rotating speed and the moment of torsion of motor;
Operating conditions figure acquiring unit, for obtaining the operating conditions figure of motor according to the rotating speed of described motor and moment of torsion;
Economical consumption of fuel district acquiring unit, for being contrasted by the universal characteristic curve of described operating conditions figure and motor, the Rate of load condensate obtaining motor is greater than rotating speed interval and the moment of torsion interval of predetermined threshold;
Control unit, for Operational Limits that is interval according to the rotating speed of described motor and moment of torsion interval adjustment motor.
Alternatively, described Operational Limits collecting unit, for gathering the rotating speed of motor, water temperature and suction pressure, obtains the rotating speed of motor, the water temperature of the motor of collection and suction pressure is compared with engine standard Operational Limits, the moment of torsion of acquisition motor.
Alternatively, described economical consumption of fuel district acquiring unit, for the rotating speed in the universal characteristic curve of the rotating speed in described operating conditions figure and moment of torsion and motor and moment of torsion being contrasted, the Rate of load condensate obtaining motor is greater than rotating speed interval and the moment of torsion interval of predetermined threshold.
The engine control that the present invention proposes and system, Operational Limits when running motor is carried out monitoring and is analyzed, and controls engine running to economical consumption of fuel district, reduces the operating cost of motor.
Accompanying drawing explanation
Can understanding the features and advantages of the present invention clearly by reference to accompanying drawing, accompanying drawing is schematic and should not be construed as and carry out any restriction to the present invention, in the accompanying drawings:
Fig. 1 shows the engine control schematic diagram of one embodiment of the invention;
Fig. 2 shows the structural representation of the engine control system of one embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention is described in detail.
Fig. 1 illustrates the engine control schematic diagram of one embodiment of the invention.As shown in Figure 1, this engine control comprises:
S1: the Operational Limits gathering motor, obtains rotating speed and the moment of torsion of motor;
S2: according to the rotating speed of described motor and the operating conditions figure of moment of torsion acquisition motor;
S3: the universal characteristic curve of described operating conditions figure and motor is contrasted, the Rate of load condensate obtaining motor is greater than rotating speed interval and the moment of torsion interval of predetermined threshold;
S4: the interval and interval Operational Limits adjusting motor of moment of torsion according to the rotating speed of described motor.
The Operational Limits when engine control of the present embodiment runs motor is carried out monitoring and is analyzed, and controls engine running to economical consumption of fuel district, reduces the operating cost of motor.
In the optional mode of execution of one, the Operational Limits of described collection motor, obtains rotating speed and the moment of torsion of motor, comprising:
Gather the rotating speed of motor, water temperature and suction pressure;
Obtain the rotating speed of motor;
The water temperature of the motor of collection and suction pressure and fuel consumption and engine standard Operational Limits are compared, obtains the moment of torsion of motor.
Wherein, cold rear suction pressure during suction pressure refers to, the i.e. pressure of engine charge after intercooler are the suction pressure of motor reality.
The present invention adopts the method obtaining Engine torque according to water temperature and suction pressure, avoids existing employing torque sensor and directly obtains the not strong problem of moment of torsion practicability, engine running can be made more accurately and efficiently in economical consumption of fuel district.
Further, the described universal characteristic curve by described operating conditions figure and motor contrasts, and comprising: the rotating speed in the universal characteristic curve of the rotating speed in described operating conditions figure and moment of torsion and motor and moment of torsion are contrasted.
In the engine control of this mode of execution, the Operational Limits of described collection motor, also comprises:
Gather the oil temperature of motor, engine oil pressure and oil consumption.
Further, the method also comprises:
The safe operation parameter threshold of the Operational Limits of the motor of collection and motor is compared;
If the Operational Limits of the motor gathered is greater than the safe operation parameter threshold of described motor, report to the police.
The method also comprises:
The Operational Limits of the motor of collection and predetermined stoppage protection parameter threshold are compared;
If the Operational Limits of the motor gathered is greater than described stoppage protection parameter threshold, then motor is made to shut down.
Especially, described stoppage protection parameter threshold is greater than described safe operation parameter threshold.
In actual applications, this engine control can also realize showing oil consumption, the oil inlet and oil return pipeline of motor adds oil bunkering fuel consume sensor, and by the collection of fuel consumption parameters and measurement, the instantaneous oil consumption of motor and average fuel consumption show on instrument display screen.
Present embodiment by motor running speed, in cold rear suction pressure, oil consumption, water temperature, oil temperature, the detection of engine oil pressure parameters and record, analyze engine operation condition and Rate of load condensate, and then optimize engine parameter and configuration; Motor is transfinited protection simultaneously, ensure that quick shutdown during hypervelocity is appearring overtemperature, in motor, reduce engine damage.
Fig. 2 shows the structural representation of the engine control system of one embodiment of the invention.As shown in Figure 2, this system comprises:
Operational Limits collecting unit 21, for gathering the Operational Limits of motor, obtains rotating speed and the moment of torsion of motor;
Operating conditions figure acquiring unit 22, for obtaining the operating conditions figure of motor according to the rotating speed of described motor and moment of torsion;
Economical consumption of fuel district acquiring unit 23, for being contrasted by the universal characteristic curve of described operating conditions figure and motor, the Rate of load condensate obtaining motor is greater than rotating speed interval and the moment of torsion interval of predetermined threshold;
Control unit 24, for Operational Limits that is interval according to the rotating speed of described motor and moment of torsion interval adjustment motor.
In the optional mode of execution of one, described Operational Limits collecting unit, for gathering the rotating speed of motor, water temperature and suction pressure, obtains the rotating speed of motor, the water temperature of the motor of collection and suction pressure and engine standard Operational Limits are compared, obtains the moment of torsion of motor.
Alternatively, described economical consumption of fuel district acquiring unit, contrasts the rotating speed in the universal characteristic curve of the rotating speed in described operating conditions figure and moment of torsion and motor and moment of torsion, and the Rate of load condensate obtaining motor is greater than the interval and moment of torsion interval of the rotating speed of predetermined threshold.
Economical consumption of fuel district acquiring unit, run to optimized operation zone (control motor running speed, power, moment of torsion to meeting actual operation requirements for controlling motor, but fuel consume is at minimum operation interval), reduce the fuel consume of motor, reduce motor operating cost.
In actual applications, Operational Limits collecting unit is made up of multiple sensor, comprises cooling-water temperature sensor, speed probe, air inlet pressure sensor, oil temperature sensor, fuel consume sensor and oil pressure sensor.
Engine control system described in the present embodiment may be used for performing said method embodiment, its principle and technique effect similar, repeat no more herein.
The engine control that the present invention proposes and system, carry out monitoring to the Operational Limits of motor and analyze, and controls engine running to economical consumption of fuel district, reduce the operating cost of motor.
Although describe embodiments of the present invention by reference to the accompanying drawings, but those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, such amendment and modification all fall into by within claims limited range.
Claims (10)
1. an engine control, is characterized in that, comprising:
Gather the Operational Limits of motor, obtain rotating speed and the moment of torsion of motor;
According to the rotating speed of described motor and the operating conditions figure of moment of torsion acquisition motor;
Contrasted by the universal characteristic curve of described operating conditions figure and motor, the Rate of load condensate obtaining motor is greater than rotating speed interval and the moment of torsion interval of predetermined threshold;
Interval and the interval Operational Limits adjusting motor of moment of torsion according to the rotating speed of described motor.
2. engine control according to claim 1, is characterized in that, the Operational Limits of described collection motor, obtains rotating speed and the moment of torsion of motor, comprising:
Gather the rotating speed of motor, water temperature and suction pressure;
The water temperature of the motor of collection and suction pressure and engine standard Operational Limits are compared, obtains the moment of torsion of motor.
3. engine control according to claim 1, is characterized in that, the described universal characteristic curve by described operating conditions figure and motor contrasts, and comprising:
Rotating speed in the universal characteristic curve of the rotating speed in described operating conditions figure and moment of torsion and motor and moment of torsion are contrasted.
4. engine control according to claim 2, is characterized in that, the Operational Limits of described collection motor, also comprises:
Gather the oil temperature of motor, engine oil pressure and fuel consume.
5. engine control according to claim 4, is characterized in that, also comprises:
The safe operation parameter threshold of the Operational Limits of the motor of collection and motor is compared;
If the Operational Limits of the motor gathered is greater than the safe operation parameter threshold of described motor, report to the police.
6. engine control according to claim 5, is characterized in that, also comprises:
The Operational Limits of the motor of collection and predetermined stoppage protection parameter threshold are compared;
If the Operational Limits of the motor gathered is greater than described stoppage protection parameter threshold, then motor is made to shut down.
7. motor operation method according to claim 6, is characterized in that, described stoppage protection parameter threshold is greater than described safe operation parameter threshold.
8. an engine control system, is characterized in that, comprising:
Operational Limits collecting unit, for gathering the Operational Limits of motor, obtains rotating speed and the moment of torsion of motor;
Operating conditions figure acquiring unit, for obtaining the operating conditions figure of motor according to the rotating speed of described motor and moment of torsion;
Economical consumption of fuel district acquiring unit, for being contrasted by the universal characteristic curve of described operating conditions figure and motor, the Rate of load condensate obtaining motor is greater than rotating speed interval and the moment of torsion interval of predetermined threshold;
Control unit, for Operational Limits that is interval according to the rotating speed of described motor and moment of torsion interval adjustment motor.
9. engine control system according to claim 8, it is characterized in that, described Operational Limits collecting unit, for gathering the rotating speed of motor, water temperature and suction pressure, the water temperature of the motor of collection and suction pressure and engine standard Operational Limits are compared, obtains the moment of torsion of motor.
10. engine control system according to claim 9, it is characterized in that, described economical consumption of fuel district acquiring unit, for the rotating speed in the universal characteristic curve of the rotating speed in described operating conditions figure and moment of torsion and motor and moment of torsion being contrasted, the Rate of load condensate obtaining motor is greater than rotating speed interval and the moment of torsion interval of predetermined threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510868332.6A CN105422300A (en) | 2015-12-01 | 2015-12-01 | Engine control method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510868332.6A CN105422300A (en) | 2015-12-01 | 2015-12-01 | Engine control method and system |
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| CN105422300A true CN105422300A (en) | 2016-03-23 |
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| CN201510868332.6A Pending CN105422300A (en) | 2015-12-01 | 2015-12-01 | Engine control method and system |
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| CN107983525A (en) * | 2017-12-04 | 2018-05-04 | 徐工集团工程机械有限公司 | Control method, dynamical system and the jaw crusher of dynamical system |
| CN111638057A (en) * | 2020-05-29 | 2020-09-08 | 上海华兴数字科技有限公司 | Engine health condition detection method, detection device and storage medium |
| CN112417671A (en) * | 2020-11-18 | 2021-02-26 | 奇瑞汽车股份有限公司 | Method, device and storage medium for obtaining engine universal characteristic curve data |
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| CN111638057A (en) * | 2020-05-29 | 2020-09-08 | 上海华兴数字科技有限公司 | Engine health condition detection method, detection device and storage medium |
| CN112417671A (en) * | 2020-11-18 | 2021-02-26 | 奇瑞汽车股份有限公司 | Method, device and storage medium for obtaining engine universal characteristic curve data |
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Application publication date: 20160323 |