CN104454188A - Gasoline injection amount control method and system for dual-fuel engine - Google Patents
Gasoline injection amount control method and system for dual-fuel engine Download PDFInfo
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- CN104454188A CN104454188A CN201410594761.4A CN201410594761A CN104454188A CN 104454188 A CN104454188 A CN 104454188A CN 201410594761 A CN201410594761 A CN 201410594761A CN 104454188 A CN104454188 A CN 104454188A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The invention provides a gasoline injection amount control method for a dual-fuel engine. The method includes the following steps that the maximum permission gasoline injection amount and the minimum permission gasoline injection amount after correction are acquired based on the current operating state of the engine according to the circulation gas inlet amount, the engine revolution speed, the temperature inside a cylinder and the EGR rate; if the current gasoline injection amount is larger than the maximum permission gasoline injection amount, the maximum permission gasoline injection amount is used for executing gasoline injection; if the current gasoline injection amount is smaller than the minimum permission gasoline injection amount, the minimum permission gasoline injection amount is used for executing gasoline injection; otherwise, the current gasoline injection amount is used for executing gasoline injection. Meanwhile, the invention further relates to a gasoline injection amount control system for the dual-fuel engine. According to the technical scheme, the gasoline injection amount can meet the using requirement, gasoline can be burnt sufficiently, and THC emission is lowered; meanwhile, the phenomenon that the noise of the engine is too large is avoided, and the advantages of the dual-fuel engine can be performed to a greater extent.
Description
Technical field
The present invention relates to the control technique that in a kind of combustion engine, fuel sprays, particularly a kind of duel fuel engine gasoline injection amount controlling method; Meanwhile, the invention still further relates to a kind of control system of duel fuel engine gasoline injection amount.
Background technique
Along with environmental problem and energy problem more and more severeer, internal-combustion engine, as main " Consumer " of the world oil energy, stands in the breach and receives special concern.Internal-combustion engine is the dynamic power machine that the current whole world is most widely used, and is irreplaceable in the short time, and how to reduce the oil consumption of motor, Economy is become better and better, more and more environmental protection, is the target that lays siege to of global Ge great automobile vendor in recent years.
Conventional engines is mainly divided into petrol engine diesel engine, and gasoline exhaust is better, but its ignition way determines that its fuel economy is poor, and the mode of diesel engine compression and combustion ensure that fuel-economy type, but corresponding NOX and other discharge higher.Therefore, the employing of duel fuel engine, has had the Common advantages of gasoline and diesel oil concurrently.Duel fuel engine is gas-duct jetting gasoline, in-cylinder injection diesel fuel, and diesel oil sprays in budc lights gasoline, realizes low oil consumption, low emission with fluid multi-point spark.In dual-fuel structure, vehicle torque, after some calculating arranged, finally will be converted into gasoline, the pre-fuel injection quantity of diesel oil and diesel oil main jet oil mass.But, the burning degree of gasoline, more responsive to cylinder temperature, when cylinder temperature is too low, engine thermal atmosphere is lower, and gasoline spraying oil mass is excessive, and causing cannot Thorough combustion, discharge and combustion stability poor; When cylinder temperature is higher, if gasoline is measured excessive, meeting build-up of pressure rise rate is too high, engine combustion is rough, noise is large, and easily causes the injury to engine body, and the too small words of amount of gasoline can not give full play to the advantage of the low oil consumption low emission of duel fuel engine.
Based on defect as above, occur in prior art that motor sprays controlling method in advance, the method obtains revised pre-fuel injection quantity and revised pre-oil spout angle according to engine speed, main jet oil mass and enviromental parameter, by the comparison by actual fuel injection amount and oil spout angle and pre-fuel injection quantity and pre-oil spout angle, realize the control to pre-fuel injection quantity.But because cylinder temperature is comparatively large on the impact of gasoline spraying oil mass, and cylinder temperature is achieved by a variety of factors, and as above controlling method is still accurate not to the control of gasoline spraying oil mass.
Summary of the invention
In view of this, the present invention is intended to propose a kind of duel fuel engine gasoline injection amount controlling method, accurately to control gasoline spraying oil mass and then to ensure that gasoline combustion is abundant.
For achieving the above object, technological scheme of the present invention is achieved in that
A kind of duel fuel engine gasoline injection amount controlling method, the method comprises the following steps:
Based on motor current operating conditions, obtain revised maximum permission gasoline spraying oil mass and minimum permission gasoline spraying oil mass according to circulation air inflow, engine speed, cylinder temperature and EGR rate;
If when current gasoline fuel injection quantity is greater than maximum permission gasoline spraying oil mass, performs gasoline with maximum permission gasoline spraying oil mass and spray; If when current gasoline fuel injection quantity is less than minimum permission gasoline spraying oil mass, performs gasoline with minimum permission gasoline spraying oil mass and spray; Otherwise, perform gasoline with current gasoline fuel injection quantity and spray.
Further, the revised maximum permission gasoline spraying oil mass of described acquisition comprises the following steps:
Maximum permission parameter value M is obtained according to circulation air inflow, engine speed, cylinder temperature and EGR rate;
Maximum permission parameter value M according to obtaining obtains maximum permission gasoline spraying oil mass, described maximum permission gasoline spraying oil mass=circulation air inflow/(maximum permission parameter value M*14.7).
Further, described acquisition maximum permission parameter value M comprises the following steps:
Table look-up according to circulation air inflow and engine speed and obtain maximum permission parameter basis value A;
According to cylinder temperature, search the first correction factor corresponding to this cylinder temperature by fair curve; And according to EGR rate, search the second correction factor corresponding to this EGR rate by fair curve;
Be multiplied by the first correction factor and the second correction factor respectively by maximum permission parameter basis value A, obtain the first correction value B and the second correction value C;
After maximum permission parameter basis value A, the first correction value B and the second correction value C summation, obtain maximum permission parameter value M.
Further, the revised minimum permission gasoline spraying oil mass of described acquisition comprises the following steps:
Minimum permission parameter value N is obtained according to circulation air inflow, engine speed, cylinder temperature and EGR rate;
Minimum permission parameter value N according to obtaining obtains minimum permission gasoline spraying oil mass, described minimum permission gasoline spraying oil mass=circulation air inflow/(minimum permission parameter value N * 14.7).
Further, the minimum permission parameter value N of described acquisition comprises the following steps:
Table look-up according to circulation air inflow and engine speed and obtain minimum permission parameter basis value a;
According to cylinder temperature, search the first correction factor corresponding to this cylinder temperature by fair curve; And according to EGR rate, search the second correction factor corresponding to this EGR rate by fair curve;
Be multiplied by the first correction factor and the second correction factor respectively by the minimum permission parameter basis value a of acquisition, obtain the 3rd correction value b and the 4th correction value c;
After minimum permission parameter basis value a, the 3rd correction value b and the 4th correction value c summation, obtain minimum permission parameter value N.
Further, described cylinder temperature is obtained by the temperature transducer be placed in cylinder.
Further, described EGR rate is obtained by capnograph.
Relative to prior art, duel fuel engine gasoline injection amount controlling method of the present invention has following advantage:
Duel fuel engine gasoline injection amount controlling method of the present invention, owing to determining revised maximum permission gasoline spraying oil mass and minimum permission gasoline spraying oil mass according to circulation air inflow, engine speed, cylinder temperature and EGR rate, meet user demand to make gasoline spraying oil mass and be fully burned, reduce THC discharge, avoid the generation of the excessive phenomenon of engine noise simultaneously, play the advantage of duel fuel engine greatly.
Another object of the present invention is to propose a kind of duel fuel engine gasoline injection amount control system, comprise main control unit, the signal acquisition module be connected with main control unit and the gasoline ejector controlled by main control unit, described signal acquisition module comprises:
Engine speed acquiring unit, for obtaining the engine speed under current state, and is sent to main control unit by engine speed;
Circulation air inflow acquiring unit, for obtaining the air circulation air inflow under current state, and is sent to main control unit by air circulation air inflow;
Cylinder temperature acquiring unit, for obtaining the motor cylinder temperature under current state, and is sent to main control unit by this temperature;
EGR rate acquiring unit, for obtaining the EGR rate under current state, and is sent to main control unit by the EGR rate of acquisition;
Current gasoline fuel injection quantity acquiring unit, for current gasoline fuel injection quantity, and is sent to main control unit by the current gasoline fuel injection quantity of acquisition;
Described duel fuel engine gasoline injection amount control system also comprises,
First computing module, to calculate maximum permission gasoline spraying oil mass, and is stored in the first memory module be connected with main control unit by main control unit by calculating the maximum permission gasoline spraying oil mass obtained;
Second computing module, to calculate minimum permission gasoline spraying oil mass, and is stored in the second memory module be connected with main control unit by main control unit by calculating the minimum permission gasoline spraying oil mass obtained;
Comparator, is connected with main control unit, for current gasoline fuel injection quantity and maximum permission gasoline spraying oil mass and minimum permission gasoline spraying oil mass being compared.
Further, described cylinder temperature acquiring unit adopts the temperature transducer be placed in cylinder.
Further, described EGR rate acquiring unit adopts capnograph.
The Dominant Facies that described duel fuel engine gasoline injection amount control system and above-mentioned duel fuel engine gasoline injection amount controlling method have relative to prior art is same, does not repeat them here.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the annexation block diagram of the embodiment of the present invention one;
Description of reference numerals:
1-main control unit, 2-signal acquisition module, 201-engine speed acquiring unit, 202-circulation air inflow acquiring unit, 203-cylinder temperature acquiring unit, 204-EGR leads acquiring unit, 205-current gasoline fuel injection quantity acquiring unit, 3-gasoline ejector, 4-first computing module, 5-first memory module, 6-second computing module, 7, the second memory module, 8-comparator.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Embodiment one
The present embodiment relates to a kind of duel fuel engine gasoline injection amount control system, and as shown in Figure 1, it comprises main control unit 1, the signal acquisition module 2 be connected with main control unit 1 and the gasoline ejector 3 controlled by main control unit 1.Wherein, main control unit 1 can adopt vehicle ECU, and gasoline ejector 3 is arranged in intake duct, its structure and and main control unit 1 between control connection relation, all can adopt the routine techniques of existing vehicle, to make gasoline ejector 3 under the control of main control unit 1, injected petrol in engine cylinder-body.
Signal acquisition module 2 in the present embodiment, for obtaining the parameter information of vehicle, in the present embodiment, it comprises engine speed acquiring unit 201, circulation air inflow acquiring unit 202, cylinder temperature acquiring unit 203, EGR rate acquiring unit 204, current gasoline fuel injection quantity acquiring unit 205, as above the signal output part of each acquiring unit is all connected with main control unit 1, for the parameter information of acquisition is sent to main control unit.
Wherein, engine speed acquiring unit 201 is for obtaining the engine speed under current state; Circulation air inflow acquiring unit 202 is for obtaining the air circulation air inflow under current state, and when reality uses, it can adopt Air flow meter, and the flow obtained by Air flow meter draws circulation air inflow; Cylinder temperature acquiring unit 203 is for obtaining the motor cylinder temperature under current state, and it can adopt the temperature transducer be placed in cylinder; EGR rate acquiring unit 204 is for obtaining the EGR rate under current state, and when practical application, it adopts capnograph, and the air inlet CO2 concentration obtained by capnograph obtains EGR rate with the ratio of exhaust CO2 concentration; Current gasoline fuel injection quantity acquiring unit 205 is for obtaining current gasoline fuel injection quantity, and it can adopt the oil spout value demarcated during vehicle ECU control fuel injection quantity.
In addition, the duel fuel engine gasoline injection amount control system of the present embodiment also has the first computing module 4, first memory module 5, second computing module 6, second memory module 7 and the comparator 8 be connected with main control unit 1.First computing module 4 is by the control of main control unit 1, calculate maximum permission gasoline spraying oil mass according to the data that the acquiring unit of main control unit reception obtains, the maximum permission gasoline spraying oil mass calculated is by main control unit 1 control store to the first memory module 5; In like manner, second computing module 6 is by the control of main control unit 1, calculate minimum permission gasoline spraying oil mass according to the data that the acquiring unit of main control unit reception obtains, the minimum permission gasoline spraying oil mass calculated is by main control unit 1 control store to the second memory module 7; Comparator 8 is by the control of main control unit 1, the numerical value stored in the numerical value stored in current gasoline fuel injection quantity and the first memory module 5 or the second memory module 7 is compared, main control unit 1, according to this comparative result, controls gasoline ejector 3 to injected petrol in admission line.
The duel fuel engine gasoline injection amount control system of the present embodiment, by the engine rotational speed signal that main control unit 1 obtains, circulation air inflow, cylinder temperature value and EGR rate determine revised maximum permission gasoline spraying oil mass and minimum permission gasoline spraying oil mass, after being compared by comparator 8 pairs of current gasoline fuel injection quantitys and revised maximum permission gasoline spraying oil mass and minimum permission gasoline spraying oil mass, control the actual fuel injection amount of gasoline ejector 3, with enable to be injected to gasoline in suction tude clean-burning while, reduce THC discharge, avoid the generation of the excessive phenomenon of engine noise.
Embodiment two
The present embodiment relates to a kind of duel fuel engine gasoline injection amount controlling method, and the method is that the major control thought of the method is as described below based on a kind of optimized control method under the duel fuel engine gasoline injection amount control system described in embodiment one:
Based on motor current operating conditions, obtain revised maximum permission gasoline spraying oil mass and minimum permission gasoline spraying oil mass according to circulation air inflow, engine speed, cylinder temperature and EGR rate;
If when current gasoline fuel injection quantity is greater than maximum permission gasoline spraying oil mass, performs gasoline with maximum permission gasoline spraying oil mass and spray; If when current gasoline fuel injection quantity is less than minimum permission gasoline spraying oil mass, performs gasoline with minimum permission gasoline spraying oil mass and spray; Otherwise, perform gasoline with current gasoline fuel injection quantity and spray.
Based on as above control thought, the concrete steps of the present embodiment are as follows:
Step one, sets up the correction relation that circulation air inflow, engine speed, cylinder temperature and EGR rate are corresponding;
Step a, set up the Lambda table based on equivalent value (Lambda value) corresponding under engine speed and circulation air inflow environment, this Lambda value corresponds to zones of different, when specifically arranging, easy pinking during load large due to low speed, what gasoline concentration can be arranged is rarer, and when low speed Smaller load or high speed moderate duty, what can arrange is denseer.
Step b, sets up the first fair curve, sets up the corresponding relation of cylinder temperature and the first correction factor, to form the first fair curve.
Step c, sets up the second fair curve, sets up the corresponding relation of EGR rate and the second correction factor, to form the second fair curve.
Step 2, main control unit 1 receives the data of engine speed acquiring unit 201, circulation air inflow acquiring unit 202, cylinder temperature acquiring unit 203, EGR rate acquiring unit 204, the conveying of current gasoline fuel injection quantity acquiring unit 205;
Step 3, obtain revised maximum permission gasoline spraying oil mass, it comprises the steps:
Step a, main control unit 1 obtains maximum permission parameter value M according to the circulation air inflow received, engine speed, cylinder temperature and EGR rate, and concrete steps comprise:
A1, tables look-up according to circulation air inflow and engine speed, namely by the Lambda table of step a in finding step one, obtains maximum permission parameter basis value A; As in the present embodiment, previous cycle air inflow is 14.7g/ circulation, and the maximum permission parameter basis value A of acquisition is 2.
A2, according to cylinder temperature, searches the first correction factor corresponding to this cylinder temperature by the first fair curve; Such as temperature transducer gathers the temperature in cylinder is 1000 degree, and the first correction factor of the correspondence looked into is 0.15; A3, according to EGR rate, search the second correction factor corresponding to this EGR rate by the second fair curve; Such as this second correction factor is-0.1;
A4, be multiplied by the first correction factor and the second correction factor respectively by maximum permission parameter basis value A, obtain the first correction value B and the second correction value C, i.e. B=2*0.15=0.3; C=2*(-0.1)=-0.2;
A5, to maximum permission parameter basis value A, the first correction value B and the second correction value C summation after, obtain maximum permission parameter value M.Based on the numerical value as above obtained, M=2+0.3-0.2=2.1.
Step b, maximum permission parameter value M according to obtaining obtains maximum permission gasoline spraying oil mass, and this maximum permission gasoline spraying oil mass is stored in the first memory module 5 by described maximum permission gasoline spraying oil mass=circulation air inflow/(maximum permission parameter value M*14.7) main control unit 1.
Step 4, obtain revised minimum permission gasoline spraying oil mass, it specifically comprises the steps:
Step a, obtains minimum permission parameter value N according to circulation air inflow, engine speed, cylinder temperature and EGR rate, specifically comprises:
Step a1, tables look-up according to circulation air inflow and engine speed and obtains minimum permission parameter basis value a, suppose that the minimum permission parameter basis value a now obtained is 1;
Step a2, according to cylinder temperature, searches the first correction factor corresponding to this cylinder temperature by the first fair curve; Such as current cylinder temperature is 800 degree, and the first correction factor of its correspondence is 0.1;
Step a3, according to EGR rate, search the second correction factor corresponding to this EGR rate by the second fair curve, the correction factor as searched is 0.05;
Step a4, is multiplied by the first correction factor and the second correction factor respectively by minimum permission parameter value N, obtains the 3rd correction value b and the 4th correction value c;
Step a5, after minimum permission parameter basis value a, the 3rd correction value b and the 4th correction value c summation, obtains minimum permission parameter value N.I.e. N=1+1*0.1+1*0.05=1.15.
Step b, the minimum permission parameter value N according to obtaining obtains minimum permission gasoline spraying oil mass, described minimum permission gasoline spraying oil mass=circulation air inflow/(minimum permission parameter value N * 14.7).
Step 4, main control unit 1 controls gasoline ejector oil spout, and its concrete steps are:
If when current gasoline fuel injection quantity is greater than maximum permission gasoline spraying oil mass, performs gasoline with maximum permission gasoline spraying oil mass and spray; If when current gasoline fuel injection quantity is less than minimum permission gasoline spraying oil mass, performs gasoline with minimum permission gasoline spraying oil mass and spray; Otherwise, perform gasoline with current gasoline fuel injection quantity and spray.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a duel fuel engine gasoline injection amount controlling method, is characterized in that the method comprises the following steps:
Based on motor current operating conditions, obtain revised maximum permission gasoline spraying oil mass and minimum permission gasoline spraying oil mass according to circulation air inflow, engine speed, cylinder temperature and EGR rate;
If when current gasoline fuel injection quantity is greater than maximum permission gasoline spraying oil mass, performs gasoline with maximum permission gasoline spraying oil mass and spray; If when current gasoline fuel injection quantity is less than minimum permission gasoline spraying oil mass, performs gasoline with minimum permission gasoline spraying oil mass and spray; Otherwise, perform gasoline with current gasoline fuel injection quantity and spray.
2. duel fuel engine gasoline injection amount controlling method according to claim 1, is characterized in that, the revised maximum permission gasoline spraying oil mass of described acquisition comprises the following steps:
Maximum permission parameter value M is obtained according to circulation air inflow, engine speed, cylinder temperature and EGR rate;
Maximum permission parameter value M according to obtaining obtains maximum permission gasoline spraying oil mass, described maximum permission gasoline spraying oil mass=circulation air inflow/(maximum permission parameter value M*14.7).
3. duel fuel engine gasoline injection amount controlling method according to claim 2, is characterized in that, described acquisition maximum permission parameter value M comprises the following steps:
Table look-up according to circulation air inflow and engine speed and obtain maximum permission parameter basis value A;
According to cylinder temperature, search the first correction factor corresponding to this cylinder temperature by fair curve; And according to EGR rate, search the second correction factor corresponding to this EGR rate by fair curve;
Be multiplied by the first correction factor and the second correction factor respectively by maximum permission parameter basis value A, obtain the first correction value B and the second correction value C;
After maximum permission parameter basis value A, the first correction value B and the second correction value C summation, obtain maximum permission parameter value M.
4. duel fuel engine gasoline injection amount controlling method according to claim 1, is characterized in that, the revised minimum permission gasoline spraying oil mass of described acquisition comprises the following steps:
Minimum permission parameter value N is obtained according to circulation air inflow, engine speed, cylinder temperature and EGR rate;
Minimum permission parameter value N according to obtaining obtains minimum permission gasoline spraying oil mass, described minimum permission gasoline spraying oil mass=circulation air inflow/(minimum permission parameter value N * 14.7).
5. duel fuel engine gasoline injection amount controlling method according to claim 4, is characterized in that, the minimum permission parameter value N of described acquisition comprises the following steps:
Table look-up according to circulation air inflow and engine speed and obtain minimum permission parameter basis value a;
According to cylinder temperature, search the first correction factor corresponding to this cylinder temperature by fair curve; And according to EGR rate, search the second correction factor corresponding to this EGR rate by fair curve;
Be multiplied by the first correction factor and the second correction factor respectively by minimum permission parameter basis value a, obtain the 3rd correction value b and the 4th correction value c;
After minimum permission parameter basis value a, the 3rd correction value b and the 4th correction value c summation, obtain minimum permission parameter value N.
6. duel fuel engine gasoline injection amount controlling method according to claim 1, is characterized in that: described cylinder temperature is obtained by the temperature transducer be placed in cylinder.
7. duel fuel engine gasoline injection amount controlling method according to claim 1, is characterized in that: described EGR rate is obtained by capnograph.
8. a duel fuel engine gasoline injection amount control system, comprises main control unit, the signal acquisition module be connected with main control unit and the gasoline ejector controlled by main control unit, and it is characterized in that, described signal acquisition module comprises:
Engine speed acquiring unit, for obtaining the engine speed under current state, and is sent to main control unit by engine speed;
Circulation air inflow acquiring unit, for obtaining the air circulation air inflow under current state, and is sent to main control unit by air circulation air inflow;
Cylinder temperature acquiring unit, for obtaining the motor cylinder temperature under current state, and is sent to main control unit by this temperature;
EGR rate acquiring unit, for obtaining the EGR rate under current state, and is sent to main control unit by the EGR rate of acquisition;
Current gasoline fuel injection quantity acquiring unit, for obtaining current gasoline fuel injection quantity, and is sent to main control unit by the current gasoline fuel injection quantity of acquisition;
Described duel fuel engine gasoline injection amount control system also comprises,
First computing module, to calculate maximum permission gasoline spraying oil mass, and is stored in the first memory module be connected with main control unit by main control unit by calculating the maximum permission gasoline spraying oil mass obtained;
Second computing module, to calculate minimum permission gasoline spraying oil mass, and is stored in the second memory module be connected with main control unit by main control unit by calculating the minimum permission gasoline spraying oil mass obtained;
Comparator, is connected with main control unit, for current gasoline fuel injection quantity and maximum permission gasoline spraying oil mass and minimum permission gasoline spraying oil mass being compared.
9. duel fuel engine gasoline injection amount control system according to claim 8, is characterized in that: described cylinder temperature acquiring unit adopts the temperature transducer be placed in cylinder.
10. duel fuel engine gasoline injection amount control system according to claim 8, is characterized in that: described EGR rate acquiring unit adopts capnograph.
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| CN106150733B (en) * | 2015-03-27 | 2019-05-31 | 长城汽车股份有限公司 | Control method, device and the automobile with the device of dual fuel engine |
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| CN106285988B (en) * | 2015-06-29 | 2021-07-23 | 福特环球技术公司 | Method and system for port fuel injection control |
| US11454189B2 (en) | 2015-06-29 | 2022-09-27 | Ford Global Technologies, Llc | Methods and systems for port fuel injection control |
| CN109154272A (en) * | 2016-05-27 | 2019-01-04 | 日立汽车系统株式会社 | Combustion engine control |
| CN109154272B (en) * | 2016-05-27 | 2020-08-28 | 日立汽车系统株式会社 | Control device for internal combustion engine |
| CN105986917A (en) * | 2016-06-30 | 2016-10-05 | 深圳市元征科技股份有限公司 | Control method and device for oil injection amount of engine |
| CN107992075A (en) * | 2017-12-07 | 2018-05-04 | 智灵飞（北京）科技有限公司 | A kind of oil machine performance monitoring instrument control system and method, gyroplane, unmanned plane |
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