CN105179092A - Control method of methyl alcohol, biodiesel and diesel multi-fuel engine system - Google Patents
Control method of methyl alcohol, biodiesel and diesel multi-fuel engine system Download PDFInfo
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- CN105179092A CN105179092A CN201510711514.2A CN201510711514A CN105179092A CN 105179092 A CN105179092 A CN 105179092A CN 201510711514 A CN201510711514 A CN 201510711514A CN 105179092 A CN105179092 A CN 105179092A
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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 relates to the technical field of automobile or agricultural locomotive engine start, in particular to a control method of a methyl alcohol, biodiesel and diesel multi-fuel engine system. The method includes the steps that a, methyl alcohol is put into a methyl alcohol tank, biodiesel is put into a biodiesel tank, and diesel is put into a diesel tank; b, the methyl alcohol tank, the biodiesel tank and the diesel tank are controlled by the same electronic control unit (ECU) and supply the fuel independently in a methyl alcohol driving mode, a biodiesel driving mode and a diesel driving mode respectively; c, cold start of a diesel engine is performed; d, fault diagnosis of the ECU is preferentially performed; e, liquid level detection of the methyl alcohol tank and the biodiesel tank is performed; f, coolant temperature detection is performed; g, matching setting of an accelerator pedal is performed. By means of the method, the problems that after controlled cold start of a methyl alcohol, biodiesel and diesel multi-fuel engine model system, emission control is difficult, emission is undesirable, fuel consumption is high and an engine can not work normally under abnormal conditions are solved.
Description
Technical field
The present invention relates to automobile, agricultural locomotive engine start technical field, particularly a kind of methyl alcohol, biodiesel, diesel oil multifuel engine system control method.
Background technique
Along with energy crisis aggravation and Abgasgesetz increasingly stringent, development of new fuel is one of emphasis becoming engine research.At present, do not change direct injection diesel engine structure, fuel delivery parameters basis on, go to study the combustion characteristic and discharge of improving diesel engine from fuel quality aspect.Choosing on fuel: tung oil, rapeseed oil, configure pure biodiesel fuel, ZS195 diesel engine carries out load-characteristic test, have studied the impact on diesel combustion law of heat release and emission performance of biodiesel fuel, ethanol and diesel fuel mixing match thereof.
Test result shows: the fuel combination of different oil plant and different proportion has obvious impact to the combustion characteristic of diesel engine and emission performance.At small load condition point, biodiesel accounts for the fuel of vast scale compared with 0# diesel oil, combustion heat release is delayed (1 ~ 4 DEG C of A) obviously, delay period extends, in-cylinder pressure and instantaneous exothermic heat rate peak value all raise, pressure raises and reaches 5%, and rate of heat release peak value raises and reaches 9%, and biodiesel fuel shows more outstanding after mixing methyl alcohol.Along with load increases, the delay period of biodiesel fuel and fuel combination thereof shortens to diesel oil substantially suitable gradually, and the maximum range of decrease of rate of heat release peak value is 19%, and pressure diagram and diesel oil are substantially suitable.
The cold starting performance that biodiesel fuel accounts for the fuel of vast scale is poor, but all can meet power character requirement, and Economy reduces slightly, and fuel consumption rate exceeds 12 ~ 18% at declared working condition than diesel oil.In discharge: when using biodiesel fuel, NOx emission approximately reduces by 10%, and biodiesel fuel to account in the fuel of vast scale blending ethanol, and the NOx emission of fuel combination reduces by 15%.At declared working condition (8.8kW/2000rpm), the carbon smoke exhaust that biodiesel fuel accounts for the fuel of vast scale all reduces than diesel oil, and the biggest drop is 89%.Biodiesel fuel accounts for the fuel of small scale at declared working condition point, and the maximum range of decrease of NOx is 8.8%, and the maximum range of decrease of carbon smoke exhaust is 76%.
Visible, the fuel combination of biodiesel fuel, methyl alcohol and diesel fuel thereof can meet engine power performance and cost-effectiveness requirement, and it is good in middle high load working condition combustion characteristic, motor operates steadily, effectively can reduce the primary discharge of diesel engine: NOx and soot, the fuel whole structure that biofuel accounts for vast scale is best.So, its significance is highlighted to methyl alcohol, biodiesel, the research of diesel oil multifuel engine system control method.
Summary of the invention
The invention provides a kind of methyl alcohol, biodiesel, diesel oil multifuel engine system control method, object be after the vehicle cold start-up solving and assembling polyhybird engine fuel wayward to polyhybird engine fuel fuel supply under currently available technology emission control difficult, discharge bad, that oil consumption is higher, motor cisco unity malfunction under abnormal conditions appears in the supply of certain fuel pattern switching problem.
The object of the invention is to be achieved through the following technical solutions:
A kind of methyl alcohol, biodiesel, diesel oil multifuel engine system control method, comprise the following steps:
A. methyl alcohol is loaded on methyl alcohol fuel tank 101, biodiesel is loaded on biodiesel fuel tank 102, diesel oil is loaded on diesel oil tank 103;
B. methyl alcohol fuel tank 101, biodiesel fuel tank 102, diesel oil tank 103 are controlled by same Electronic Control Unit ECU, and independently supply fuel, and its pattern is respectively methanol-driving pattern, biodiesel drive pattern or diesel driven pattern;
D. diesel engine cold start-up;
D. electronic control unit ECU preferentially carries out fault diagnosis, when the arbitrary component failure signal of methanol solution level sensor 107, biodiesel liquid level sensor 108, electronic control unit ECU will be switched to diesel fuel mode and drive diesel engine work, send fault diagnosis alarm signal, notice driver repairs fault in time simultaneously;
E. methyl alcohol fuel tank, biodiesel oil tank liquid level detect
When methanol fuel liquid level being detected lower than preset value, liquid level signal is sent to electronic control unit ECU by methanol solution level sensor 110, electronic control unit ECU carries out processing according to this liquid level signal and sends processing result instruction to actuator, now diesel engine 104 keeps diesel driven pattern, start to report to the police, prompting driving operation personnel supplement methanol fuel in time simultaneously;
Further, when biodiesel fuel liquid level being detected lower than preset value, liquid level signal is sent to electronic control unit ECU by biodiesel liquid level sensor 117, electronic control unit ECU carries out processing according to this liquid level signal and sends processing result instruction to actuator, now diesel engine keeps diesel driven pattern, start to report to the police, prompting driving operation personnel supplement biodiesel fuel in time simultaneously;
F. coolant temperature detects
If methanol fuel liquid level and biodiesel fuel liquid level are higher than setting value, then electronic control unit ECU carries out coolant temperature detection, coolant temperature sets when engine electronic control unit ECU does coolant temperature matching and calibration according to accelerator pedal position, and input electronic control unit ECU, simultaneously, biodiesel accelerator pedal position is set during matching and calibration, and input electronic control unit ECU, due under cold condition, diesel engine temperature represents with diesel engine coolant temperature usually, engine coolant temperature is detected by cooling-water temperature transmitter 105, and coolant temperature signal 114 is sent to electronic control unit ECU, when the coolant temperature detected is lower than setting value, processing result instruction is sent to actuator by electronic control unit ECU, engine system keeps diesel driven pattern, when the coolant temperature detected is higher than setting value, electronic control unit ECU judges the engine start time further,
G. accelerator pedal match settings
When electronic control unit ECU does matching and calibration, coolant temperature setting value is set as 20 DEG C, 40 DEG C, 60 DEG C respectively, is now less than 20%, 40% to 60% and be greater than 60% corresponding respectively with accelerator pedal position; After the cold start-up of diesel engine 104 diesel driven pattern, when cooling-water temperature transmitter 105 detects coolant temperature <20 DEG C, when corresponding accelerator pedal position is then the low-load system being less than 20%, be switched to biodiesel drive pattern; As cooling-water temperature transmitter detected temperatures >40 DEG C, when corresponding accelerator pedal position is the medium-loaded system of 40% to 60%, be switched to methanol-driving pattern; As cooling-water temperature transmitter detected temperatures >60 DEG C, corresponding accelerator pedal position be greater than 60% heavy loaded system, be now switched to diesel driven pattern to drive diesel engine.
In step e, methanol fuel level set value is height H >=15mm, if liquid level H<15mm, then methanol fuel residual capacity is not enough, now electronic control unit ECU judges go forward side by side row relax and result is sent to command execution unit according to methyl alcohol liquid level signal 110, diesel engine switches to diesel driven pattern, send warning simultaneously, alerting drivers supplements methanol fuel in time, further, biodiesel fuel level set value is height H >=15mm, if liquid level H<15mm, then biodiesel fuel residual capacity is not enough, now electronic control unit ECU judges go forward side by side row relax and result is sent to command execution unit according to biodiesel liquid level signal 117, diesel engine switches to diesel driven pattern, send warning simultaneously, alerting drivers supplements corresponding fuel in time.
Beneficial effect of the present invention is:
Multifuel engine system control method of the present invention is controlled by same electronic control unit ECU, cold start-up is carried out with diesel oil under engine low temperature, when coolant temperature and engine running time reach setting value, switch corresponding fuel feeding pattern in good time and drive; Occur that abnormal fuel mode of automatically carrying out switches and sends alarm signal in time when motor runs.Current existing technology is mainly fuel combination fuel system and two supply mode, and the present invention adopts heavy wool case independent oil supply mode, to be formed under comprehensively solving fuel combination fuel system under the wayward and multifuel engine vehicle Systematical control of microemulsion fuel combination proportioning emission control after cold start-up difficult, discharge bad, oil consumption is higher, the problem of motor cisco unity malfunction under abnormal conditions.Prove by experiment, two circulation THC (total amount containing hydrocarbon in the gas of discharge) the more former scheme of total release can reduce by 38% and 47% respectively, and entire system characteristic is good, and its method is easy to realize.
Accompanying drawing explanation
Fig. 1: methyl alcohol, biodiesel, diesel oil multifuel engine system supplier structural drawing
Fig. 2: electronic control unit ECU control principle drawing
Fig. 3: methyl alcohol, biodiesel, diesel oil multifuel engine system control method flow chart.
Reference character:
101 methyl alcohol fuel tank 102 biodiesel fuel tanks
103 diesel oil tank 104 diesel engine
105 cooling-water temperature transmitter 106 electronic control unit ECU
107 methanol solution level sensor 108 biodiesel liquid level sensors
109 diesel oil liquid level sensor 110 methyl alcohol liquid level signals
111 methyl alcohol fuel tank failure diagnostic signal 112 methanol fuels export control signal
113 methanol fuels export 114 coolant temperature signals
115 biodiesel fuels export control signal 116 biodiesel fuel and export
117 biodiesel liquid level signal 118 biodiesel fuel oil box fault diagnosis signals
119 diesel oil export control signal 120 diesel fuel and export
121 diesel oil liquid level signal 122 diesel fuel fuel tank failure diagnostic signals
Embodiment
For making object of the present invention, content and advantage clearly, below in conjunction with drawings and Examples, the specific embodiment of the invention is further described in detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
First, see Fig. 1, methyl alcohol of the present invention, biodiesel, diesel oil multifuel engine system supplier structural drawing are described.
Methyl alcohol fuel tank 101, biodiesel fuel tank 102, diesel oil tank 103 are separate on apparatus structure to be laid, the supply of its fuel is controlled by same electronic control unit ECU106, electronic control unit ECU106 is the core of multi fuel apparatus for controlling of supply, the data controlling signal that each sensor of analysis and treament sends, make corresponding analysis to judge simultaneously, and object command is sent to actuator, realize controlling the supply of multiple fuel system.
Sensor comprises methanol solution level sensor 107, biodiesel liquid level sensor 108, diesel oil liquid level sensor 109.Methanol solution level sensor 107 is arranged in methyl alcohol fuel tank 101, and biodiesel liquid level sensor 108 is arranged in biodiesel fuel tank 102, and diesel oil liquid level sensor 109 is arranged in diesel oil tank 103.
Data information and digital signal comprise methyl alcohol liquid level signal 110, methyl alcohol fuel tank failure diagnostic signal 111, methanol fuel exports control signal 112, coolant temperature signal 114, biodiesel fuel exports control signal 115, biodiesel liquid level signal 117, biodiesel fuel oil box fault diagnosis signal 118, diesel oil exports control signal 119, diesel oil liquid level signal 121 and diesel fuel fuel tank failure diagnostic signal 122.Data information and digital signal comprise digital signal and analogue signal.
Fuel level signal comprises methyl alcohol liquid level signal 110, biodiesel liquid level signal 117 and diesel oil liquid level signal 121.Methyl alcohol liquid level signal 110 is provided by methanol fuel liquid level sensor 107, biodiesel liquid level signal 117 is provided by biodiesel fuel liquid level sensor 108, diesel oil liquid level signal 121 is provided by diesel fuel liquid level sensor 109, and level set value is demarcated in advance and inputted electronic control unit ECU.
Fuel tank fault diagnosis signal comprises methyl alcohol fuel tank failure diagnostic signal 111, biodiesel fuel oil box fault diagnosis signal 118, diesel fuel fuel tank failure diagnostic signal 122.
As shown in Figure 2, be electronic control unit ECU control principle drawing.
Described data information and digital signal input described electronic control unit ECU by input circuit, analogue signal is carried out binary digital signal conversion, digital signal after conversion inputs CPU by I/O and carries out Floating-point Computation and process, carry out caching process on a memory simultaneously, its digital signal passes through process on single-chip microcomputer/microprocessor, obtain object command signal and pass through I/O port to output loop, object command signal is sent to actuator and performs instruction, thus realize the control to fuel supply.
Because methanol fuel and biodiesel fuel are not easy to cold start-up at low temperatures, so under prior art license, adopt diesel fuel cold start mode, to avoid the problem of methanol fuel under low-temperature condition, biodiesel fuel difficulty in starting.After engine start success, biodiesel drive pattern is switched to when accelerator pedal position is less than the low-load of 20%, when during accelerator pedal position is 40% to 60% time during load systematic evaluation to methanol-driving pattern, during heavy loaded system when accelerator pedal position is greater than 60%, be switched to diesel driven pattern to drive motor.In addition, when diesel engine starts, switch supply model in real time in conjunction with detection coolant temperature.
Fig. 3 is the flow chart of a kind of methyl alcohol of the present invention, biodiesel, diesel oil multifuel engine system control method.A kind of methyl alcohol, biodiesel, diesel oil multifuel engine system control method, comprise the following steps:
A. methyl alcohol is loaded on methyl alcohol fuel tank 101, biodiesel is loaded on biodiesel fuel tank 102, diesel oil is loaded on diesel oil tank 103;
B. methyl alcohol fuel tank 101, biodiesel fuel tank 102, diesel oil tank 103 are controlled by same electronic control unit ECU, and independently supply fuel, and its pattern is respectively methanol-driving pattern, biodiesel drive pattern or diesel driven pattern;
C. diesel engine cold start-up;
D. electronic control unit ECU preferentially carries out fault diagnosis, when methanol solution level sensor 107 or biodiesel liquid level sensor 108 break down signal, electronic control unit ECU will be switched to the work of diesel driven mode activated diesel engine, send fault diagnosis alarm signal, notice driver repairs fault in time simultaneously;
E. methyl alcohol fuel tank, biodiesel oil tank liquid level detect
When methanol fuel liquid level being detected lower than preset value, liquid level signal is sent to electronic control unit ECU by methanol solution level sensor 107, electronic control unit ECU carries out processing according to this liquid level signal and sends processing result instruction to actuator, now diesel engine 104 keeps diesel driven pattern, start to report to the police, prompting driving operation personnel supplement methanol fuel in time simultaneously.
Further, when biodiesel fuel liquid level being detected lower than preset value, liquid level signal is sent to electronic control unit ECU by biodiesel liquid level sensor 108, electronic control unit ECU carries out processing according to this liquid level signal and sends processing result instruction to actuator, now diesel engine keeps diesel driven pattern, start to report to the police, prompting driving operation personnel supplement biodiesel fuel in time simultaneously.
Such as: normal supply methanol fuel level set value is height H >=15mm, if liquid level H<15mm, then methanol fuel residual capacity is not enough, re-using methanol fuel drives diesel engine 104 will cause diesel engine cisco unity malfunction, now electronic control unit ECU judges go forward side by side row relax and result is sent to command execution unit according to methyl alcohol liquid level signal 110, diesel engine switches to diesel driven pattern, send warning, alerting drivers supplements methanol fuel in time simultaneously.Further, normal supply biodiesel fuel level set value is height H >=15mm, if liquid level H<15mm, then biodiesel fuel residual capacity is not enough, re-using biodiesel fuel drives diesel engine will cause diesel engine cisco unity malfunction, now electronic control unit ECU judges go forward side by side row relax and result is sent to command execution unit according to biodiesel liquid level signal 117, diesel engine switches to diesel driven pattern, send warning, alerting drivers supplements corresponding fuel in time simultaneously.
F. coolant temperature detects
If the fuel level of methyl alcohol and biodiesel is higher than setting value, then electronic control unit ECU carries out coolant temperature detection.Coolant temperature sets when engine electronic control unit ECU does coolant temperature matching and calibration according to accelerator pedal position, and inputs electronic control unit ECU.Meanwhile, set biodiesel accelerator pedal position during matching and calibration, and input electronic control unit ECU.Due under cold condition, diesel engine temperature represents with diesel engine coolant temperature usually, and engine coolant temperature is detected by cooling-water temperature transmitter 105, and coolant temperature signal 114 is sent to electronic control unit ECU.When the coolant temperature detected is lower than setting value, processing result instruction is sent to actuator by electronic control unit ECU, and diesel engine keeps diesel driven pattern.When the coolant temperature detected is higher than setting value, electronic control unit ECU judges diesel engine starting time further.
G. accelerator pedal match settings
When electronic control unit ECU does matching and calibration, coolant temperature setting value is set as 20 DEG C, 40 DEG C, 60 DEG C respectively, is now less than 20%, 40% to 60% and be greater than 60% corresponding respectively with accelerator pedal position.After the cold start-up of diesel engine 104 diesel driven pattern, when cooling-water temperature transmitter 105 detects coolant temperature <20 DEG C, when corresponding accelerator pedal position is then the low-load system being less than 20%, be switched to biodiesel drive pattern; As cooling-water temperature transmitter detected temperatures >40 DEG C, when corresponding accelerator pedal position is the medium-loaded system of 40% to 60%, be switched to methanol-driving pattern; As cooling-water temperature transmitter detected temperatures >60 DEG C, corresponding accelerator pedal position be greater than 60% heavy loaded system, be now switched to diesel driven pattern to drive diesel engine.
It should be noted that, after diesel engine 104 successfully starts, although coolant temperature reaches setting value respectively, but and do not mean that diesel engine entirety reaches best warming-up effect, because warming-up is a progressive process, diesel engine all parts just can be made to reach uniform temperature, and coolant temperature and each parts of diesel engine are as not quite identical in cylinder temperature, if now by systematic evaluation to biodiesel drive pattern or methanol-driving pattern, the burn incompletely of fuel certainly will be caused, simultaneously of short duration diesel fuel mode starting time, the oil film that diesel injection is formed is limited, and biodiesel and methanol fuel do not possess perfect lubrication characteristic, if switching biodiesel drive pattern or methanol-driving pattern all can strengthen the wearing and tearing to diesel engine immediately, so that shorten the life-span of diesel engine.
From diesel engine 104 successfully starts, along with the running of diesel engine 104, diesel engine temperature rises gradually, and ascending temperature is relevant to starting time, initial coolant temperature and accelerator pedal position.Particularly, when diesel engine 104 matching and calibration, according to different initial coolant temperature values, calibrate corresponding accelerator pedal position and time setting value, from diesel engine successfully starts, after desired location and time value, diesel engine entirety will reach good warming-up effect, diesel engine casing wall oil slick thickness is sufficient, now switches the best opportunity of corresponding fuel just.
Such as: when diesel engine does matching and calibration, initial coolant temperature 10 DEG C, corresponding diesel engine warm-up period is 120S, then when engine coolant sensor 105 detects that initial coolant temperature is 10 DEG C, it is 120S that electronic control unit ECU selectes diesel engine warm-up period, calculate from diesel engine successfully starts, when detecting engine coolant temperature and reaching setting value, and diesel engine is after 120S running, diesel engine closes diesel oil Initial Start-Up Mode, electronic control unit ECU is switched to corresponding biodiesel drive pattern or methanol-driving pattern according to judging further.
The foregoing is only embodiments of the invention; not thereby practical range of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or directly or indirectly utilize at other correlative technology fields, be all in like manner included in scope of patent protection of the present invention.
Claims (2)
1. methyl alcohol, biodiesel, a diesel oil multifuel engine system control method, is characterized in that: comprise the following steps:
A. methyl alcohol is loaded on methyl alcohol fuel tank (101), biodiesel is loaded on biodiesel fuel tank (102), diesel oil is loaded on diesel oil tank (103);
B. methyl alcohol fuel tank (101), biodiesel fuel tank (102), diesel oil tank (103) are controlled by same Electronic Control Unit ECU, and independently supplying fuel, its pattern is respectively methanol-driving pattern, biodiesel drive pattern or diesel driven pattern;
C. diesel engine cold start-up;
D. electronic control unit ECU preferentially carries out fault diagnosis, when the arbitrary component failure signal of methanol solution level sensor (107), biodiesel liquid level sensor (108), electronic control unit ECU will be switched to diesel fuel mode and drive diesel engine work, send fault diagnosis alarm signal, notice driver repairs fault in time simultaneously;
E. methyl alcohol fuel tank, biodiesel oil tank liquid level detect
When methanol fuel liquid level being detected lower than preset value, liquid level signal is sent to electronic control unit ECU by methanol solution level sensor (110), electronic control unit ECU carries out processing according to this liquid level signal and sends processing result instruction to actuator, now diesel engine (104) keeps diesel driven pattern, start to report to the police, prompting driving operation personnel supplement methanol fuel in time simultaneously;
Further, when biodiesel fuel liquid level being detected lower than preset value, liquid level signal is sent to electronic control unit ECU by biodiesel liquid level sensor (117), electronic control unit ECU carries out processing according to this liquid level signal and sends processing result instruction to actuator, now diesel engine keeps diesel driven pattern, start to report to the police, prompting driving operation personnel supplement biodiesel fuel in time simultaneously;
F. coolant temperature detects
If methanol fuel liquid level and biodiesel fuel liquid level are higher than setting value, then electronic control unit ECU carries out coolant temperature detection, coolant temperature sets when engine electronic control unit ECU does coolant temperature matching and calibration according to accelerator pedal position, and input electronic control unit ECU, simultaneously, biodiesel accelerator pedal position is set during matching and calibration, and input electronic control unit ECU, due under cold condition, diesel engine temperature represents with diesel engine coolant temperature usually, engine coolant temperature is detected by cooling-water temperature transmitter (105), and coolant temperature signal (114) is sent to electronic control unit ECU, when the coolant temperature detected is lower than setting value, processing result instruction is sent to actuator by electronic control unit ECU, engine system keeps diesel driven pattern, when the coolant temperature detected is higher than setting value, electronic control unit ECU judges the engine start time further,
G. accelerator pedal match settings
When electronic control unit ECU does matching and calibration, coolant temperature setting value is set as 20 DEG C, 40 DEG C, 60 DEG C respectively, is now less than 20%, 40% to 60% and be greater than 60% corresponding respectively with accelerator pedal position; After the cold start-up of diesel engine 104 diesel driven pattern, when cooling-water temperature transmitter (105) detects coolant temperature <20 DEG C, when corresponding accelerator pedal position is then the low-load system being less than 20%, be switched to biodiesel drive pattern; As cooling-water temperature transmitter detected temperatures >40 DEG C, when corresponding accelerator pedal position is the medium-loaded system of 40% to 60%, be switched to methanol-driving pattern; As cooling-water temperature transmitter detected temperatures >60 DEG C, corresponding accelerator pedal position be greater than 60% heavy loaded system, be now switched to diesel driven pattern to drive diesel engine.
2. methyl alcohol as claimed in claim 1, biodiesel, a diesel oil multifuel engine system control method, is characterized in that:
In step e, methanol fuel level set value is height H >=15mm, if liquid level H<15mm, then methanol fuel residual capacity is not enough, now electronic control unit ECU judges go forward side by side row relax and result is sent to command execution unit according to methyl alcohol liquid level signal (110), diesel engine switches to diesel driven pattern, send warning simultaneously, alerting drivers supplements methanol fuel in time, further, biodiesel fuel level set value is height H >=15mm, if liquid level H<15mm, then biodiesel fuel residual capacity is not enough, now electronic control unit ECU judges go forward side by side row relax and result is sent to command execution unit according to biodiesel liquid level signal (117), diesel engine switches to diesel driven pattern, send warning simultaneously, alerting drivers supplements corresponding fuel in time.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587409A (en) * | 2016-03-16 | 2016-05-18 | 李珍发 | Switching system for denatured methanol diesel fuel and general diesel fuel dual-fuel supplying |
| CN107620646A (en) * | 2017-08-10 | 2018-01-23 | 北汽福田汽车股份有限公司 | Dual-purpose fuel vehicle and control method for dual-purpose fuel vehicle, device |
| CN113339153A (en) * | 2021-07-16 | 2021-09-03 | 无锡威孚高科技集团股份有限公司 | Control method and device of methanol diesel dual-fuel high-pressure direct injection system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050109317A1 (en) * | 2003-11-20 | 2005-05-26 | Toyota Jidosha Kabushiki Kaisha | Control apparatus and control method for internal combustion engine |
| CN101684753A (en) * | 2008-09-28 | 2010-03-31 | 上海华普汽车有限公司 | Control system of multi-fuel automobile and automobile |
| CN101984234A (en) * | 2010-11-11 | 2011-03-09 | 东莞传动电喷科技有限公司 | Control method of methanol/gasoline dual-fuel engine system |
| CN104832297A (en) * | 2014-11-12 | 2015-08-12 | 北汽福田汽车股份有限公司 | Double-fuel switching control device, system, method and vehicle |
-
2015
- 2015-10-28 CN CN201510711514.2A patent/CN105179092B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050109317A1 (en) * | 2003-11-20 | 2005-05-26 | Toyota Jidosha Kabushiki Kaisha | Control apparatus and control method for internal combustion engine |
| CN101684753A (en) * | 2008-09-28 | 2010-03-31 | 上海华普汽车有限公司 | Control system of multi-fuel automobile and automobile |
| CN101984234A (en) * | 2010-11-11 | 2011-03-09 | 东莞传动电喷科技有限公司 | Control method of methanol/gasoline dual-fuel engine system |
| CN104832297A (en) * | 2014-11-12 | 2015-08-12 | 北汽福田汽车股份有限公司 | Double-fuel switching control device, system, method and vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 周庆辉，等: "柴油机燃用甲醇-生物柴油-柴油微乳化燃料的试验研究", 《拖拉机与农用运输车》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587409A (en) * | 2016-03-16 | 2016-05-18 | 李珍发 | Switching system for denatured methanol diesel fuel and general diesel fuel dual-fuel supplying |
| CN107620646A (en) * | 2017-08-10 | 2018-01-23 | 北汽福田汽车股份有限公司 | Dual-purpose fuel vehicle and control method for dual-purpose fuel vehicle, device |
| CN113339153A (en) * | 2021-07-16 | 2021-09-03 | 无锡威孚高科技集团股份有限公司 | Control method and device of methanol diesel dual-fuel high-pressure direct injection system |
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| CN105179092B (en) | 2018-02-13 |
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