CN101984234A - Control method of methanol/gasoline dual-fuel engine system - Google Patents
Control method of methanol/gasoline dual-fuel engine system Download PDFInfo
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- CN101984234A CN101984234A CN2010105494283A CN201010549428A CN101984234A CN 101984234 A CN101984234 A CN 101984234A CN 2010105494283 A CN2010105494283 A CN 2010105494283A CN 201010549428 A CN201010549428 A CN 201010549428A CN 101984234 A CN101984234 A CN 101984234A
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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
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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
- Y02T10/40—Engine management systems
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Abstract
The invention provides a control method of a methanol/gasoline dual-fuel engine system. Dual-fuel fuel oil supply devices are controlled by the same electronic control unit (ECU), the engine can start normally at low temperature and switch to a methanol fuel driving mode in time; and at the same time, the engine can automatically switch to the other fuel driving mode under the exceptional condition to ensure that the engine operates normally and an alarm is given. The control method comprehensively solves the problems of the methanol/gasoline dual-fuel engine that the engine is difficult to start at low temperature, the emissions are harmful, the fuel consumption is higer and the engine can not operate normally under the exceptional condition. The control method adopts automated operation, has obvious effect and is a control method of the dual-fuel engine system, which is worth popularizing.
Description
Technical field
The present invention relates to engine system control technique field, relate in particular to a kind of controlling method of methanol/gasoline double-fuel engine system.
Background technique
Along with socioeconomic fast development and quickening of urbanization process, city environmental pollution is on the rise.Because the consumption of limited petroleum-based energy is quickened in the quick growth of city automobile recoverable amount, because of the exhaustion day by day of its non-renewable characteristics.Especially in recent years owing to oil competition international dispute took place constantly, and fuel price rising violently year by year also, is to solve energy crisis, and the methanol fuel of fuel is applied gradually as an alternative.Methanol fuel has thermal efficiency height, specific power height, discharges advantages such as lower.Its high latent heat of vaporization can make charge density improve, thereby improves charging efficiency, strengthens the power character of motor.
At present, the existing certain development of the motor that uses methanol/gasoline double-fuel to drive, generally be methanol fuel to be mixed with certain proportion or arbitrary proportion with gasoline act as a fuel, but there are the not enough problem of intersolubility in methyl alcohol and gasoline under the uniform temperature condition, cause the fuel layering, the Economy and the power performance of motor all had bigger influence.
Chinese patent CN 101629533 A disclose a kind of supply system of methanol engine fuel and controlling method thereof, this system is provided with methanol fuel fuel tank and Fuel Petroleum fuel tank, supply with methanol fuel and Fuel Petroleum respectively separately, and fuel supply is controlled by ECU (Electrical Control Unit) ECU, ECU (Electrical Control Unit) ECU is by cooling-water temperature sensor monitoring water temperature or by environment temperature sensor monitoring of environmental temperature, judge whether water temperature or ambient temperature are lower than 10 ℃, when if water temperature or ambient temperature are lower than 10 ℃, then motor enters the startup of low temperature Fuel Petroleum, after starting successfully low temperature gasoline start-up mode is switched to the methanol fuel drive pattern, if water temperature or ambient temperature are higher than 10 ℃, then motor enters the methanol fuel start-up mode, and starting successfully, the back keeps working under the methanol fuel pattern.This control system and method thereof have solved methanol engine and started difficult problem under low temperature environments, but the part that still has some deficits:
One, this system starts with the Fuel Petroleum pattern under the low temperature environment below 10 ℃, promptly switch to the methanol fuel drive pattern after starting successfully, yet in the warming-up process of cold machine after the cold-starting success, each parts of motor such as cylinder etc. may not reach the needed temperature of the normal perfect combustion of methyl alcohol as yet, under this temperature, if be methanol fuel with the Fuel Petroleum mode switching by force, will make the methyl alcohol incomplete combustion, following problem appears:
1, methyl alcohol incomplete combustion at low temperatures, its partial combustion product is a formaldehyde, formaldehyde is highly susceptible to polymerization, its polymerisate polyoxymethylene boiling point height, is difficult to run out of in motor.Polyoxymethylene is generated organic acid by further oxidation, organic acid at high temperature corrosivity even near the sulfuric acid under the room temperature, the heavy corrosion motor;
2, do not fire the discharging of methyl alcohol, environment is produced bigger pollution, methyl alcohol is typical neurotoxic substance, can absorb through respiratory tract, intestines and stomach and skin, mainly damages people's nerve and vision system, has significant anesthetic effect;
3, oil consumption is higher: under cold machine condition, enter warming-up enriching operating mode at motor, can increase the consumption of methyl alcohol;
4, engine life shortens: methanol fuel does not possess lubricity, and gasoline has certain lubricity, so motor uses methanol fuel to carry out the warming-up enriching under cold machine condition, can aggravate the wearing and tearing of motor, shortens engine life.
Two, system goes wrong or the fuel level sensor connector assembly breaks down in a certain supply of fuel, or the fuel pump relay circuit can't automatically switch to another kind of fuel mode to guarantee the motor proper functioning when breaking down.
Summary of the invention
The invention provides a kind of controlling method of methanol/gasoline double-fuel engine system, purpose is the fuel mode switching problem after solution alcohol/gasoline motor starts difficulty under low temperature environment, discharging is bad, oil consumption is higher and certain fuel supply goes wrong.
For achieving the above object, the invention provides following technological scheme: a kind of controlling method of methanol/gasoline double-fuel engine system may further comprise the steps:
1) methanol fuel and Fuel Petroleum are loaded on corresponding fuel tank respectively separately;
2) supply of methanol fuel and Fuel Petroleum is controlled by same ECU (Electrical Control Unit) ECU, and with methanol fuel pattern or Fuel Petroleum pattern independence fueling;
3) ato unit;
Further comprising the steps of:
Behind the engine start, cooling-water temperature transmitter monitoring engine cooling water temperature, and temperature signal is sent to engine electric-controlled unit ECU, when coolant temperature reaches setting value, and the engine running time, system switched to methanol fuel mode activated motor proper functioning when reaching setting value.
The described engine running time is for the time picking up counting the time that engine running experienced from the engine start success.
Preferably, also comprise, the methanol fuel liquid level sensor is measured the liquid level of methanol fuel, when described methanol fuel liquid level is lower than setting value, sensor sends described liquid level signal to ECU (Electrical Control Unit) ECU, and ECU (Electrical Control Unit) ECU sends instruction, and the methanol fuel drive pattern is automatically switched to the Fuel Petroleum drive pattern, with assurance motor proper functioning, and give the alarm.
Preferably, also comprise, the connector assembly of monitoring methanol fuel liquid level sensor, when the connector assembly of described methanol fuel liquid level sensor breaks down, ECU (Electrical Control Unit) ECU assert that automatical control system breaks down, and send instruction the methanol fuel drive pattern is automatically switched to the Fuel Petroleum drive pattern, guaranteeing the motor proper functioning, and give the alarm.
Preferably, also comprise, the circuit of monitoring methanol fuel oil pump relay, when the circuit of described methanol fuel oil pump relay goes wrong, in the time of can't normally providing methanol fuel for motor, ECU (Electrical Control Unit) ECU assert that automatical control system breaks down, and the transmission instruction automatically switches to the Fuel Petroleum drive pattern with the methanol fuel drive pattern, with assurance motor proper functioning, and give the alarm.
Compared with prior art, the present invention has the following advantages:
Double fuel fuel oil supply device of the present invention is controlled by same electronic control unit ECU, and motor also can normally start and switch in good time the methanol fuel mode activated at low temperatures; Simultaneously, start function under exceptional condition, to automatically switch to another kind of fuel driven pattern to guarantee the motor proper functioning and to give the alarm.The present invention has comprehensively solved methanol/gasoline double-fuel engine cold-starting difficulty, discharging is bad, oil consumption is higher, the problem of motor cisco unity malfunction under the exceptional condition, automation mechanized operation, effect is obvious, is a kind of dual fuel engine system controlling method that is worthy to be popularized.
Description of drawings
Fig. 1 is the supplier structural drawing of methanol/gasoline double-fuel of the present invention system;
Fig. 2 is the theory of constitution figure of ECU (Electrical Control Unit) ECU of the present invention, and arrow is represented the data-signal direction of transfer;
Fig. 3 is the flow chart of a kind of methanol/gasoline double-fuel engine system of embodiment of the invention controlling method.
Be labeled as among the figure: 101 methyl alcohol fuel tanks, 102 gasoline fuel tanks, 103 motors, 104 cooling-water temperature transmitters, 105 ECU (Electrical Control Unit) ECU, 106 methanol solution level sensors, 107 gasoline liquid level sensors, 108 methyl alcohol liquid level signals, 109 methyl alcohol fuel tank failure diagnostic signals, 110 methanol fuels output control signal, the output of 111 methanol fuels, 112 coolant temperature signals, 113 Fuel Petroleums output control signal, the output of 114 Fuel Petroleums, 115 gasoline liquid level signals, 116 gasoline fuel tank failure diagnostic signals.
Embodiment
For making above-mentioned purpose of the present invention, feature, advantage clear more understandable, the specific embodiment of the present invention is elaborated below in conjunction with accompanying drawing.
Referring to Fig. 1, this figure is a methanol/gasoline double-fuel supplier structural drawing of the present invention.
Methyl alcohol fuel tank 101 and gasoline fuel tank 102 arrange independently of each other that structurally the supply of its fuel is by same ECU (Electrical Control Unit) ECU 105 controls.This ECU (Electrical Control Unit) ECU 105 is the core of fuel supply control device, analyze and handle the data information signal that each sensor sends, make corresponding judgment according to these data informations, and object command is sent to various power units, realize control fuel supply.
Described sensor comprises methanol solution level sensor 106, gasoline liquid level sensor 107, cooling-water temperature transmitter 104 etc.Described data information signal comprises methyl alcohol liquid level signal 108, gasoline liquid level signal 115, coolant temperature signal 112, methyl alcohol fuel tank failure diagnostic signal 109, gasoline fuel tank failure diagnostic signals 116 etc., described data information signal comprise two kinds of analogue signal and digital signals.
Referring to Fig. 2, this figure is the theory of constitution figure of ECU (Electrical Control Unit) ECU of the present invention.
After described data information signal entered described ECU (Electrical Control Unit) ECU by input circuit, if analogue signal, will enter the A/D port was digital signal with analog signal conversion, enters microcomputer by the I/O port again; If digital signal will directly enter microcomputer by the I/O port.Signal process in microcomputer is handled, and obtains the object command signal and passes through the I/O port to output loop, this object command signal is sent to corresponding actuator carry out this instruction, thereby realization is to the control of fuel supply.
Because there is the problem of cold-starting difficulty in methanol fuel, in the prior art, startup for motor, a kind of method is that acquiescence starts with the gasoline pattern, so no matter under which kind of temperature conditions, all unified employing gasoline pattern starts, and has avoided the difficult problem of methyl alcohol startup under the low temperature, and after successfully starting system has been switched to the methanol fuel drive pattern; Another method is when engine start, by detecting coolant temperature, to judge whether be fit under this temperature conditions adopt methanol fuel to start, be then to adopt methanol fuel to start, otherwise adopt Fuel Petroleum to start.But these two kinds of methods are difficult to find exactly in good time point to switch fuel mode, thereby cause adverse consequences after the engine start success.
Below in conjunction with Fig. 3 the working procedure of double fuel supply control system of the present invention is described, referring to Fig. 3, this figure is the flow chart of a kind of methanol/gasoline double-fuel engine system of the present invention controlling method.
Behind the engine start, engine coolant temperature signal, fuel level signal, fault diagnosis signal will be sent to ECU (Electrical Control Unit) ECU at any time, described fuel level signal comprises methanol fuel liquid level signal and Fuel Petroleum liquid level signal, and described fault diagnosis signal comprises connector assembly fault diagnosis signal, methanol fuel oil pump relay circuit fault diagnosis signal of methanol fuel liquid level sensor etc.In any case, can under system's fault-free, work for guaranteeing fuel, ECU (Electrical Control Unit) ECU will preferentially carry out fault diagnosis, when the connector assembly of methanol fuel liquid level sensor breaks down, when perhaps methanol fuel oil pump relay circuit breaks down, ECU (Electrical Control Unit) ECU will drive engine operation in gasoline pattern mode, send the fault diagnosis alarm simultaneously, and the notice driver is in time repaired fault; When the connector assembly fault-free of methanol fuel liquid level sensor, and during methanol fuel oil pump relay circuit fault-free, ECU (Electrical Control Unit) ECU will further diagnose the methanol fuel liquid level.
The methanol fuel liquid level signal is provided by the methanol fuel liquid level sensor, and the liquid level setting value is carried out in advance and demarcated and be input into ECU (Electrical Control Unit) ECU.When detecting the methyl alcohol liquid level and be lower than setting value, the methanol fuel liquid level sensor sends to ECU (Electrical Control Unit) ECU with liquid level signal, ECU (Electrical Control Unit) ECU handles according to this signal and processing result is sent instructions to actuator, engine system keeps the gasoline driven pattern, give the alarm simultaneously, refuel with the caution driver.
Liquid level setting value that for example can regular supply methyl alcohol is H 〉=20mm, if liquid level is lower than 20mm, methanol fuel surplus deficiency is described, re-use methanol fuel and drive motor, will cause the motor cisco unity malfunction, at this moment, ECU (Electrical Control Unit) ECU judges liquid level signal according to the methanol fuel liquid level sensor and processing result is sent instructions to actuator, engine system keeps the gasoline driven pattern, gives the alarm simultaneously, refuels with the caution driver.
If the liquid level of methyl alcohol is normal, promptly level value is higher than setting value, and ECU (Electrical Control Unit) ECU will enter coolant temperature and detect.
Methanol fuel the partial combustion phenomenon can occur under cryogenic conditions, cause the engine start difficulty.For avoiding the appearance of this phenomenon, methanol fuel should burn greater than under the certain temperature condition, and this temperature is rule of thumb to be worth when engine electric-controlled unit ECU does matching and calibration to set, and input ECU (Electrical Control Unit) ECU.
Under the cold machine condition, engine temperature shows with engine coolant temperature indicator that usually engine coolant temperature is detected by cooling-water temperature transmitter, and sends this temperature signal to ECU (Electrical Control Unit) ECU.When detected coolant temperature is lower than setting value, ECU (Electrical Control Unit) ECU will handle judged result and send instructions to execution architecture, and engine system keeps the gasoline driven pattern.When detected temperature is higher than setting value, ECU (Electrical Control Unit) ECU will further judge the engine start time.
For example, when engine electric-controlled unit ECU does matching and calibration, desired temperature is made as 60 ℃, behind the engine start, when cooling-water temperature transmitter detects coolant temperature and is lower than 60 ℃ of this setting values, ECU (Electrical Control Unit) ECU will handle judged result and send instructions to execution architecture, and engine system keeps the gasoline driven pattern.When detected temperature is higher than 60 ℃ of this setting values, ECU (Electrical Control Unit) ECU will further judge the engine start time.
Need to prove, after motor successfully starts, though coolant temperature has reached setting value, but and do not mean that motor integral body reaches best warming-up effect, because warming-up is a progressive process, just can make each parts of motor reach certain temperature, and each parts of coolant temperature and motor such as cylinder temperature and not quite identical, if switch to methanol fuel pattern with system this moment, certainly will cause the partial combustion of methanol fuel; Simultaneously, of short duration gasoline pattern starting time, the oil film that makes gasoline injection form is limited, and methyl alcohol does not have lubricity, switches to the methanol fuel pattern this moment and will strengthen wearing and tearing to motor, shortening engine life.
Successfully start from motor, along with the running of motor, engine temperature will rise gradually, and the temperature of rising is relevant with initial coolant temperature with starting time.Particularly, when engine matching and calibration, according to different initial coolant temperature values, calibrate corresponding time set value, successfully start from motor, through after this set time value, motor integral body will reach good warming-up effect, motor casing wall oil film is enough thick, just system is switched to the Best Times of methanol fuel this moment.
For example, when motor is done matching and calibration, initial 10 ℃ of pairing engine warm-up times of coolant temperature are 150 seconds, then when the engine coolant sensor when initial coolant temperature is 10 ℃, then the selected engine warm-up time of ECU (Electrical Control Unit) ECU should be 150 seconds, when motor successfully starts, detecting coolant temperature arrival setting value, and after motor turned round through 150 seconds, engine system is closed the Fuel Petroleum pattern, switches to methanol fuel mode activated motor.
Controlling method of the present invention, also comprise, motor is when proper functioning, the methanol fuel liquid level sensor is measured the liquid level of methanol fuel at any time, and when described methanol fuel liquid level was lower than setting value, sensor sent described liquid level signal to ECU (Electrical Control Unit) ECU, ECU (Electrical Control Unit) ECU sends instruction, the methanol fuel drive pattern is automatically switched to the Fuel Petroleum drive pattern,, and give the alarm with assurance motor proper functioning.
Controlling method of the present invention, also comprise, motor is when proper functioning, at any time monitor the connector assembly of methanol fuel liquid level sensor, when the connector assembly of described methanol fuel liquid level sensor broke down, ECU (Electrical Control Unit) ECU assert that automatical control system breaks down, and the transmission instruction automatically switches to the Fuel Petroleum drive pattern with the methanol fuel drive pattern, with assurance motor proper functioning, and give the alarm.
Controlling method of the present invention, also comprise, motor is when proper functioning, at any time monitor the circuit of methanol fuel oil pump relay, when the circuit of described methanol fuel oil pump relay goes wrong, in the time of can't normally providing methanol fuel for motor, ECU (Electrical Control Unit) ECU assert that automatical control system breaks down, and send instruction the methanol fuel drive pattern is automatically switched to the Fuel Petroleum drive pattern, guaranteeing the motor proper functioning, and give the alarm.
The above is preferred embodiment of the present invention, and does not mean that the present invention is done any qualification.Should be pointed out that for the person of ordinary skill of the art,, all should be considered as protection scope of the present invention not breaking away from any modification of making under the know-why prerequisite of the present invention.
Claims (5)
1. the controlling method of a methanol/gasoline double-fuel engine control system may further comprise the steps:
1) methanol fuel and Fuel Petroleum are loaded on corresponding fuel tank respectively separately;
2) supply of methanol fuel and Fuel Petroleum is controlled by same ECU (Electrical Control Unit) ECU, and with methanol fuel pattern or Fuel Petroleum pattern independence fueling;
3) ato unit;
It is characterized in that, further comprising the steps of:
Behind the engine start, cooling-water temperature transmitter monitoring engine coolant temperature, and temperature signal is sent to engine electric-controlled unit ECU, when coolant temperature reaches setting value, and the engine running time, system switched to methanol fuel mode activated motor proper functioning when reaching setting value.
2. the controlling method of methanol/gasoline double-fuel engine control system according to claim 1 is characterized in that, the described engine running time is for the time picking up counting the time that engine running experienced from the engine start success.
3. the controlling method of methanol/gasoline double-fuel engine control system according to claim 1 and 2, it is characterized in that, also comprise, the methanol fuel liquid level sensor is measured the liquid level of methanol fuel, and when described methanol fuel liquid level was lower than setting value, sensor sent described liquid level signal to ECU (Electrical Control Unit) ECU, ECU (Electrical Control Unit) ECU sends instruction, the methanol fuel drive pattern is automatically switched to the Fuel Petroleum drive pattern,, and give the alarm with assurance motor proper functioning.
4. the controlling method of methanol/gasoline double-fuel engine control system according to claim 1 and 2, it is characterized in that, also comprise, the connector assembly of monitoring methanol fuel liquid level sensor, when the connector assembly of described methanol fuel liquid level sensor broke down, ECU (Electrical Control Unit) ECU assert that automatical control system breaks down, and the transmission instruction automatically switches to the Fuel Petroleum drive pattern with the methanol fuel drive pattern, with assurance motor proper functioning, and give the alarm.
5. the controlling method of methanol/gasoline double-fuel engine control system according to claim 1 and 2, it is characterized in that, also comprise, the circuit of monitoring methanol fuel oil pump relay, when the circuit of described methanol fuel oil pump relay goes wrong, in the time of can't normally providing methanol fuel for motor, ECU (Electrical Control Unit) ECU assert that automatical control system breaks down, and the transmission instruction automatically switches to the Fuel Petroleum drive pattern with the methanol fuel drive pattern, with assurance motor proper functioning, and give the alarm.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696860A (en) * | 2013-12-19 | 2014-04-02 | 山西华顿实业有限公司 | Dual-fuel feeding device and control system |
| CN105156217A (en) * | 2015-08-20 | 2015-12-16 | 河南机电高等专科学校 | Intelligent oil/alcohol dual-fuel control system for car |
| CN105179092A (en) * | 2015-10-28 | 2015-12-23 | 中国农业大学 | Control method of methyl alcohol, biodiesel and diesel multi-fuel engine system |
| CN105888857A (en) * | 2016-06-22 | 2016-08-24 | 奇瑞汽车股份有限公司 | Fuel switching control method for gasoline and CNG double-fuel vehicle |
| CN106285970A (en) * | 2015-05-28 | 2017-01-04 | 长城汽车股份有限公司 | A kind of dual fuel engine control method of cold start |
| CN106481462A (en) * | 2016-11-21 | 2017-03-08 | 浙江吉利控股集团有限公司 | A kind of methanol engine cold start system |
| CN106930875A (en) * | 2017-01-18 | 2017-07-07 | 浙江吉利控股集团有限公司 | Supply system of methanol engine fuel and startup control method |
| CN104196642B (en) * | 2014-08-21 | 2017-07-18 | 江苏引领醇新能源科技有限公司 | Method and fuel feed system that a kind of automobile gasoline is used in mixed way with alcohol-based fuel |
| CN108240266A (en) * | 2016-12-23 | 2018-07-03 | 联合汽车电子有限公司 | The injector failures limping control method of methanol vehicle |
| CN108240267A (en) * | 2016-12-23 | 2018-07-03 | 联合汽车电子有限公司 | The fuel pump failure limping control method of methanol vehicle |
| CN110630387A (en) * | 2019-09-30 | 2019-12-31 | 潍柴动力股份有限公司 | Method, device and system for switching dual-fuel engine |
| CN112523879A (en) * | 2020-11-26 | 2021-03-19 | 浙江吉利控股集团有限公司 | Dual-fuel control method and system for vehicle and vehicle |
| CN112796895A (en) * | 2020-12-28 | 2021-05-14 | 浙江吉利控股集团有限公司 | Fuel mode switching method and system of dual-fuel vehicle and vehicle |
| CN112855365A (en) * | 2021-01-08 | 2021-05-28 | 浙江吉利控股集团有限公司 | Fuel mode control method and control system of engine |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696860A (en) * | 2013-12-19 | 2014-04-02 | 山西华顿实业有限公司 | Dual-fuel feeding device and control system |
| CN104196642B (en) * | 2014-08-21 | 2017-07-18 | 江苏引领醇新能源科技有限公司 | Method and fuel feed system that a kind of automobile gasoline is used in mixed way with alcohol-based fuel |
| CN106285970B (en) * | 2015-05-28 | 2019-01-29 | 长城汽车股份有限公司 | A kind of dual fuel engine control method of cold start |
| CN106285970A (en) * | 2015-05-28 | 2017-01-04 | 长城汽车股份有限公司 | A kind of dual fuel engine control method of cold start |
| CN105156217A (en) * | 2015-08-20 | 2015-12-16 | 河南机电高等专科学校 | Intelligent oil/alcohol dual-fuel control system for car |
| CN105179092A (en) * | 2015-10-28 | 2015-12-23 | 中国农业大学 | Control method of methyl alcohol, biodiesel and diesel multi-fuel engine system |
| CN105888857A (en) * | 2016-06-22 | 2016-08-24 | 奇瑞汽车股份有限公司 | Fuel switching control method for gasoline and CNG double-fuel vehicle |
| CN106481462A (en) * | 2016-11-21 | 2017-03-08 | 浙江吉利控股集团有限公司 | A kind of methanol engine cold start system |
| CN106481462B (en) * | 2016-11-21 | 2019-08-23 | 浙江吉利控股集团有限公司 | A kind of methanol engine cold start system |
| CN108240266A (en) * | 2016-12-23 | 2018-07-03 | 联合汽车电子有限公司 | The injector failures limping control method of methanol vehicle |
| CN108240267A (en) * | 2016-12-23 | 2018-07-03 | 联合汽车电子有限公司 | The fuel pump failure limping control method of methanol vehicle |
| CN108240266B (en) * | 2016-12-23 | 2020-08-28 | 联合汽车电子有限公司 | Fault limping control method for fuel injector of methanol automobile |
| CN108240267B (en) * | 2016-12-23 | 2021-01-05 | 联合汽车电子有限公司 | Fuel pump fault limping control method of methanol automobile |
| CN106930875A (en) * | 2017-01-18 | 2017-07-07 | 浙江吉利控股集团有限公司 | Supply system of methanol engine fuel and startup control method |
| CN110630387A (en) * | 2019-09-30 | 2019-12-31 | 潍柴动力股份有限公司 | Method, device and system for switching dual-fuel engine |
| CN112523879A (en) * | 2020-11-26 | 2021-03-19 | 浙江吉利控股集团有限公司 | Dual-fuel control method and system for vehicle and vehicle |
| CN112796895A (en) * | 2020-12-28 | 2021-05-14 | 浙江吉利控股集团有限公司 | Fuel mode switching method and system of dual-fuel vehicle and vehicle |
| CN112855365A (en) * | 2021-01-08 | 2021-05-28 | 浙江吉利控股集团有限公司 | Fuel mode control method and control system of engine |
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Application publication date: 20110309 |