CN101349205B - Motorcycle start-up fuel injection control method - Google Patents
Motorcycle start-up fuel injection control method Download PDFInfo
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- CN101349205B CN101349205B CN2008100702988A CN200810070298A CN101349205B CN 101349205 B CN101349205 B CN 101349205B CN 2008100702988 A CN2008100702988 A CN 2008100702988A CN 200810070298 A CN200810070298 A CN 200810070298A CN 101349205 B CN101349205 B CN 101349205B
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Abstract
The invention provides a starting fuel injection control method for a motorcycle, which is characterized in that the control method is carried out according to the following: step 1, a fuel injector is started so as to realize pre-injection; step 2, a tooth lacking position on a magneto is looked for; step 3, the fuel injector is started so as to realize second fuel injection; step 4, the fuel injector is started so as to realize third fuel injection; and step 5, the motorcycle checks the self, and if the rotational speed of an engine is abnormal, the fuel injector stops injecting fuel. The invention has the advantages that the control method can reasonably regulate the fuel injection quantity of the fuel injector on the premise of fully satisfying the staring operation of the engine, raise the combustion efficiency of fuel, save fuel, ensure that the engine cannot submerge cylinders, detect the operation status of the engine at the optimal time after the engine is started, and reasonably control the fuel injector to inject fuel.
Description
Technical field
The invention belongs to motorcycle fuel feeding control technique, specifically is the method for a kind of motorcycle with electronic fuel injection system oil spout control when starting.
Background technique
The oil spout control mode of motorcycle with electronic fuel injection system engine start was divided into for two steps now:
After the first step: ECU obtained enabled instruction, before engine rotation, ECU control oil sprayer was realized once spray in advance;
Second step: certain interval of time, after motor began to rotate, ECU control oil sprayer kept oil spout always, for motor provides fuel oil kinetic energy.
Keep oil spout always,, guarantee to start the function effectively start, but whether motor can normally start, except motor self operating mode, also will satisfy external conditions such as oxygen-supplying amount in the atmosphere, engine load for motor provides sufficient amount of fuel.If in the engine abnormity, atmosphere during situation such as oxygen-supplying amount deficiency, motor just can not normally start, but this moment, oil sprayer but keeps the oil spout state always, in the fuel oil inflow engine cylinder body, but can't work by combustion, and cause that motor floods cylinder.Have only and remove and the cleaning spark plug, perhaps engine throttle is drawn back, remove oil spilling, could solve the cylinder problem of flooding.
Existing motorcycle with electronic fuel injection system starts the shortcoming of oil spout mode: no matter whether motor can proper functioning, and oil sprayer all keeps the oil spout state always, causes that easily motor floods cylinder.
Summary of the invention
The purpose of this invention is to provide a kind of motorcycle start-up fuel injection control method, can under the prerequisite that fully satisfies the engine start running, rationally regulate the fuel injection quantity of oil sprayer, guarantee that motor can not flood cylinder.
For achieving the above object, a kind of motorcycle start-up fuel injection control method of the present invention, its key is, follows these steps to carry out:
Step 1 starts oil sprayer, realizes spray in advance;
Step 2 is sought the hypodontia position on the magnetogenerator;
At motorcycle engine rotor outer wall n gear teeth installation position is set evenly, n-2 the gear teeth are installed on gear teeth installation position, and keep two adjacent hypodontia positions, speed probe is installed on magnetogenerator, this speed probe obtains the gear teeth signal on the magnetogenerator, seek the hypodontia position on the magnetogenerator, determine engine crankshaft position;
Step 3 is determined the position when motor runs to compression top center;
Step 4 starts oil sprayer, realizes oil spout for the second time;
According to the hypodontia position on the magnetogenerator, when the compression top center of engine rotation to the 1 circle or the 2nd circle, start oil sprayer, realize oil spout for the second time;
Step 5 starts oil sprayer, realizes oil spout for the third time;
According to the hypodontia position on the magnetogenerator, when the compression top center of engine rotation to the 3 circles or the 4th circle, start oil sprayer, realize oil spout for the third time;
Step 6, the motorcycle self check;
Behind engine rotation 4 circles, whether normal according to the rotating speed of described speed probe detection of engine, if engine speed is normal, the oil spout operating mode when oil sprayer enters normal working of engine, if engine speed is undesired, oil sprayer stops oil spout.
At preceding 4 circles of engine rotation, oil sprayer is realized three oil spouts, wherein once is pre-spray before the engine rotation, and secondary is in the optimum igniting time in addition: oil spout during compression top center.Control the startup fuel injection quantity, under the prerequisite that fully satisfies the engine start running, improved the fuel utilization ratio of fuel injection when starting engine, saved fuel oil, guarantee that motor can not flood cylinder.
At described motorcycle engine rotor outer wall 30～40 gear teeth positions are set evenly.
The each fuel injection quantity of described oil sprayer is 0.1ml～1.5ml.
According to different motors, rationally regulate the each fuel injection quantity of oil sprayer, fully satisfy the needs of engine start running.
Described compression top center is meant that engine rotor runs to the 8th～12 gear teeth place behind the described hypodontia position.
Different engine rotor outer walls are provided with the different gear teeth respectively, the position of its compression top center also has nothing in common with each other, but determine that by the gear teeth position behind the hypodontia position compression top center of every motor is unusual mature technique, this seeks rational injection time end technical foundation is provided.
The rated speed of described motor is 800～1100rpm.
Under normal circumstances, behind engine rotation 4 circles, just can normally move, carry out engine speed this moment and detect, can provide rotary speed data accurately and effectively for ECU at Best Times, guarantee oil sprayer can be under the unusual situation of engine running fuel cut-off, avoid motor to flood cylinder.
Remarkable result of the present invention is: can be under the prerequisite that fully satisfies the engine start running, rationally regulate the fuel injection quantity of oil sprayer, improve combustion efficiency of fuel oil, save fuel oil, guarantee that motor can not flood cylinder, and Best Times detection of engine operation conditions that can be behind engine start, rationally control the oil sprayer oil spout.
Description of drawings
Accompanying drawing 1 is a flow chart of steps of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
As shown in Figure 1,
A kind of motorcycle start-up fuel injection control method follows these steps to carry out:
Step 1 starts oil sprayer, realizes spray in advance;
Step 2 is sought the hypodontia position on the magnetogenerator;
At motorcycle engine rotor outer wall n gear teeth installation position is set evenly, n-2 the gear teeth are installed on gear teeth installation position, and keep two adjacent hypodontia positions, speed probe is installed on magnetogenerator, this speed probe obtains the gear teeth signal on the magnetogenerator, seek the hypodontia position on the magnetogenerator, determine engine crankshaft position;
Step 3 is determined the position when motor runs to compression top center;
Step 4 starts oil sprayer, realizes oil spout for the second time;
According to the hypodontia position on the magnetogenerator, when the compression top center of engine rotation to the 1 circle or the 2nd circle, start oil sprayer, realize oil spout for the second time;
Step 5 starts oil sprayer, realizes oil spout for the third time;
According to the hypodontia position on the magnetogenerator, when the compression top center of engine rotation to the 3 circles or the 4th circle, start oil sprayer, realize oil spout for the third time;
After engine rotation to the 1 circle was realized oil spout for the second time, engine rotation to the 3 circles were realized oil spout for the third time, and after engine rotation to the 2 circles were realized oil spout for the second time, engine rotation to the 4 circles were realized oil spout for the third time.
Step 6, the motorcycle self check;
Behind engine rotation 4 circles, whether normal according to the rotating speed of this speed probe detection of engine, if engine speed is normal, the oil spout operating mode when oil sprayer enters normal working of engine, if engine speed is undesired, oil sprayer stops oil spout.
At preceding 4 circles of engine rotation, oil sprayer is realized three oil spouts, wherein once is pre-spray before the engine rotation, and secondary is in the optimum igniting time in addition: oil spout during compression top center.Control the startup fuel injection quantity,
Fully satisfy under the prerequisite of engine start running, improved the fuel utilization ratio of fuel injection when starting engine, saved fuel oil, guarantee that motor can not flood cylinder.
At preceding 4 circles of engine rotation, oil sprayer is realized three oil spouts, wherein once is pre-spray before the engine rotation, and secondary is in the optimum igniting time in addition: oil spout during compression top center.Control the startup fuel injection quantity, under the prerequisite that fully satisfies the engine start running, improved the fuel utilization ratio of fuel injection when starting engine, saved fuel oil, guarantee that motor can not flood cylinder.
According to motorcycle engine model difference, can 30,32,36,38,40 gear teeth positions evenly be set at motorcycle engine rotor outer wall.
The each fuel injection quantity of described oil sprayer is 0.1ml～1.5ml.
According to different motors, rationally regulate the each fuel injection quantity of oil sprayer, fully satisfy the needs of engine start running.According to the air fuel ratio conversion technology of available engine, fuel injection quantity that can small displacement engine is set to 0.1ml/ time, and the fuel injection quantity of large-duty engine is set to 1.5ml/ time, and it is inferior that the fuel injection quantity of other displacement engines is set to 0.5ml/ time, 1ml/.
Motorcycle engine model difference, compression top center is also inequality, and engine rotor runs to the 8th, 9,10,12 gear teeth place behind the hypodontia position respectively.
If the engine rotor outer wall evenly is provided with 36 gear teeth positions, 34 gear teeth of as installed, its compression top center are exactly the 10th gear teeth place behind the hypodontia position.
Different engine rotor outer walls are provided with the different gear teeth respectively, the position of its compression top center also has nothing in common with each other, but determine that by the gear teeth position behind the hypodontia position compression top center of every motor is unusual mature technique, this seeks rational injection time end technical foundation is provided.
The rated speed of described motor is 800～1100rpm.
According to the needs of the actual model of motor, 800rpm or 900rpm or 1000rpm or 1100rpm can be set.
Under normal circumstances, behind engine rotation 4 circles, just can normally move, carry out engine speed this moment and detect, can provide rotary speed data accurately and effectively for ECU at Best Times, guarantee oil sprayer can be under the unusual situation of engine running fuel cut-off, avoid motor to flood cylinder.
Claims (5)
1. a motorcycle start-up fuel injection control method is characterized in that, follows these steps to carry out:
Step 1 starts oil sprayer, realizes spray in advance;
Step 2 is sought the hypodontia position on the magnetogenerator;
At motorcycle engine rotor outer wall n gear teeth installation position is set evenly, n-2 the gear teeth are installed on gear teeth installation position, and are kept two adjacent hypodontia positions, speed probe is installed on magnetogenerator, this speed probe obtains the gear teeth signal on the magnetogenerator, seeks the hypodontia position on the magnetogenerator;
Step 3 is determined the position when motor runs to compression top center;
Step 4 starts oil sprayer, realizes oil spout for the second time;
According to the hypodontia position on the magnetogenerator, when the compression top center of engine rotation to the 1 circle or the 2nd circle, start oil sprayer, realize oil spout for the second time;
Step 5 starts oil sprayer, realizes oil spout for the third time;
According to the hypodontia position on the magnetogenerator, when the compression top center of engine rotation to the 3 circles or the 4th circle, start oil sprayer, realize oil spout for the third time;
Step 6, the motorcycle self check;
Behind engine rotation 4 circles, whether normal according to the rotating speed of described speed probe detection of engine, if engine speed is normal, the oil spout operating mode when oil sprayer enters normal working of engine, if engine speed is undesired, oil sprayer stops oil spout.
2. a kind of motorcycle start-up fuel injection control method according to claim 1 is characterized in that: at described motorcycle engine rotor outer wall 30～40 gear teeth positions are set evenly.
3. a kind of motorcycle start-up fuel injection control method according to claim 1 is characterized in that: the each fuel injection quantity of described oil sprayer is 0.1ml～1.5ml.
4. a kind of motorcycle start-up fuel injection control method according to claim 1 is characterized in that: described compression top center is meant that engine rotor runs to the 8th～12 gear teeth place behind the described hypodontia position.
5. a kind of motorcycle start-up fuel injection control method according to claim 1 is characterized in that: the rated speed of described motor is 800～1100rpm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100702988A CN101349205B (en) | 2008-09-16 | 2008-09-16 | Motorcycle start-up fuel injection control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100702988A CN101349205B (en) | 2008-09-16 | 2008-09-16 | Motorcycle start-up fuel injection control method |
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| CN101349205A CN101349205A (en) | 2009-01-21 |
| CN101349205B true CN101349205B (en) | 2011-09-28 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103047022B (en) * | 2012-12-30 | 2015-10-07 | 潍柴动力股份有限公司 | A kind of electronic controlled diesel is without the starting method of camshaft signal and device |
| CN104265481B (en) * | 2014-08-26 | 2017-02-01 | 力帆实业(集团)股份有限公司 | Method and system for controlling starting of electric-fuel-injection motorbike engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606486Y (en) * | 2003-02-28 | 2004-03-10 | 重庆宗申技术开发研究有限公司 | Electric spray magnetic rotor on motorcycle |
| CN2720701Y (en) * | 2004-08-02 | 2005-08-24 | 中国嘉陵工业股份有限公司（集团） | Electrojet motorcycle magnetic motor rotor |
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2008
- 2008-09-16 CN CN2008100702988A patent/CN101349205B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2606486Y (en) * | 2003-02-28 | 2004-03-10 | 重庆宗申技术开发研究有限公司 | Electric spray magnetic rotor on motorcycle |
| CN2720701Y (en) * | 2004-08-02 | 2005-08-24 | 中国嘉陵工业股份有限公司（集团） | Electrojet motorcycle magnetic motor rotor |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2000-102279A 2000.04.07 |
| 兰欣,程勇,吴波.摩托车台架实验空燃比控制***的开发.《山东内燃机》.2005,(第6期),15-17. * |
| 纪少波,程勇,郑希江,唐娟,兰欣.电控燃油喷射***相位识别新方法.《仪器仪表学报》.2007,第28卷(第7期),1328-1331. * |
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