CN103343717A - Method for controlling electronic fuel injection motorcycle idle speed - Google Patents
Method for controlling electronic fuel injection motorcycle idle speed Download PDFInfo
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- CN103343717A CN103343717A CN2013103079858A CN201310307985A CN103343717A CN 103343717 A CN103343717 A CN 103343717A CN 2013103079858 A CN2013103079858 A CN 2013103079858A CN 201310307985 A CN201310307985 A CN 201310307985A CN 103343717 A CN103343717 A CN 103343717A
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Abstract
The invention discloses a method for controlling electronic fuel injection motorcycle idle speed. The revolution speed of an engine and the starting state and the stopping state of an accelerator are detected so that whether the engine is in the idle speed can be judged. After the fact that the engine is in the idle speed is judged, the ventilation quantity of a bypass pipe line of a throttle valve is controlled and an ignition angular lead is controlled so that the revolution speed of the engine of the motorcycle can be adjusted to be consistent with an objective idle speed value. According to the method for controlling the electronic fuel injection motorcycle idle speed, the revolution speed of the engine of the motorcycle which is in the idle speed state can be well controlled, so that the motorcycle reaches an ideal running state of the motorcycle, the method has the advantages of being quick in response time, sensitive and quick in control, convenient and reliable to use, and capable of greatly reducing loss of the motorcycle under the idle speed state.
Description
Technical field
The present invention relates to a kind of motorcycle with electronic fuel injection system, especially relate to a kind of motorcycle with electronic fuel injection system idle speed control.
Background technique
Motorcycle with electronic fuel injection system has referred to adopt electric jet technology to light a fire and the motorcycle of fuel feeding.In the motorcycle with electronic fuel injection system, (EFI) cancelled carburetor arrangement with the EFI system and device, the ECU (Electrical Control Unit) (ECU) that employing contains the EFI special-purpose software is carried out real-time intelligent control to supply and the igniting of engine fuel, its fuel feeding is to pass through throttle position sensor, intake flow sensor, intake air temperature sensor, engine temperature sensing unit, the instant signal of measuring of sensor such as crankshaft position sensor and lambda sensor is sent to ECU, carry out fuel feeding after judging by ECU is comprehensive again, its fuel feeding is extremely accurate, make the air fuel ratio of motor under any environment of any operating mode, it is best that ignition angle can both reach at any time, thereby the oil consumption of motorcycle is reduced, discharging improves, and combination property improves greatly.
The motorcycle idling mode refers to that the output of motorcycle motive power is disconnected the working state under the race of engine situation.During motorcycle driving, just usually be in idling mode when slowly sliding waiting for red light or run into traffic congestion, under this idling mode, economize consumption in order to reduce motor, just need carry out idle speed control to reduce the rotating speed of motor as far as possible.
The idle speed control technology is comparatively ripe in automobile, and automobile generally is that multicylinder engine (four cylinders or more than), idling are stable easily; And motorcycle generally is single cylinder and twin cylinder engine is more, idle speed value fluctuation is bigger.So the idle speed control technology of using in the automobile can not be applied directly on the motorcycle.
In the existing motorcycle with electronic fuel injection system, when the vehicle idling state, as actual idling and target idling have deviation, be when regulating idling by the artificial idling screw of manually adjusting on the throttle body air inflow, to reach the purpose of adjusting idling.The defective of this method because the scattered error of motor and throttle body, cause the idling air inflow that difference is arranged, these all needed artificial manually adjustment when motorcycle dispatched from the factory, and had increased people's workload; It two is that the idling air inflow that causes having mixed up diminishes when motorcycle uses, because the plateau atmospheric pressure is low when dispatching from the factory under altitude environment, just need carry out the secondary adjustment this moment.And the present invention is owing to be that ECU (Electrical Control Unit) drives idle speed step motor and adjusts voluntarily, can both self adaption under various environment.This has just been avoided artificially manually having adjusted, having reduced people's workload.
In addition, in the prior art, also there are some method of control motorcycle idling, for example China's number of patent application 03137256.2 disclosed a kind of motorcycle electric-control motor idling speed closed loop control methods automatically; The disclosed a kind of idle speed control method for electric-controlled unit of motorcycle engine of China's number of patent application 200810226053.X for example again.These technology all have the effect of automatic control idling, but its controlling method is single, still exist the control reaction time slower, the relatively poor defective of control sensitivity.
Summary of the invention
At the deficiencies in the prior art, technical problem to be solved by this invention is, how to provide a kind of reaction time faster, can control the engine speed of motorcycle under idling mode better, to reduce the motorcycle with electronic fuel injection system idle speed control of idling loss, it is convenient to have control, reliable, fast characteristics.
In order to solve the problems of the technologies described above, adopted following technological scheme among the present invention:
A kind of motorcycle with electronic fuel injection system idle speed control, it is characterized in that, judge by detecting engine speed and throttle switching situation whether motor is in idling, after judging that motor is in idling, adopt control throttle valve bypass pipeline Throughput and control ignition advance angle to regulate the motorcycle engine rotating speed, make it consistent with the target idle speed value.
Specifically, may further comprise the steps:
A, obtain motorcycle engine target idle speed value and be input in the ECU (Electrical Control Unit) of motorcycle, described target idle speed value refers to that motorcycle is in motor output speed under the minimum steady operational status, obtains by test in advance;
B, at motorcycle engine throttle body default one and closure passage by-pass line arranged side by side, the throttle body appearance is fixed a stepper motor over against by-pass line, stepper motor is connected with the ECU (Electrical Control Unit) of motorcycle and by its control, stepper motor output shaft and a flexible rod screw thread socket, flexible rod arranges and is positioned at the neutral position in by-pass line cross section when original state over against the by-pass line middle part, during described stepper motor output shaft forward or reverse, can drive flexible rod and stretch out forward and by-pass line all intercepted or can drive flexible rod and withdraw backward and make the complete conducting of by-pass line;
In c, the motorcycle driving process, detect and judge whether motor is in idling;
After d, judgement motor are in idling mode, with engine speed and the contrast of target idle speed value, when engine speed during greater than the target idle speed value, ECU (Electrical Control Unit) control step motor action, control flexible rod front end progresses into by-pass line inside to reduce the bypath air amount, ECU (Electrical Control Unit) is sent and is instructed the control point fire coil to reduce ignition advance angle to reduce engine speed, up to consistent with the target idle speed value simultaneously; When engine speed during less than the target idle speed value, ECU (Electrical Control Unit) control step motor action, control flexible rod front end is withdrawn gradually and is left by-pass line to increase the bypath air amount, ECU (Electrical Control Unit) is sent instruction control point fire coil increase ignition advance angle to reduce engine speed, up to consistent with the target idle speed value simultaneously.
With respect to prior art, among the present invention, adopt the adjustment of controlling idling air quantity and firing angle simultaneously that actual speed and target idling are matched, tolerance and firing angle dereferenced idling is adjusted separately like this, when not matching such as actual speed and target idling, the idling air quantity and firing angle changes simultaneously, to adjust actual speed.Just doing like this makes the identical time lag of actual speed and target idling reduce, have benefits such as response is fast.In addition, increased by-pass line and adopted the stepper motor that is fixed on the throttle body appearance to drive the adjusting that a flexible rod stretches to control the bypath air amount at throttle body among the present invention, it has simple in structure, and is easy to implement, and control makes things convenient for advantages such as sensitivity.
As optimization, be by detecting engine speed and detect throttle switching situation by throttle position switch and judge whether motor is in idling, judging that specifically value is that engine speed judges that less than 0.6% o'clock motor is in idling mode less than 3000 rev/mins of while accelerator open degrees among the step c.
Existing electric injection system generally is to gather the neutral signal to judge whether motor is in idling mode, its principle be the neutral signal insert ECU (Electrical Control Unit), when neutral signal numerical value is high level, ECU (Electrical Control Unit) judge motor be in idling mode, when neutral signal numerical value is low level, ECU (Electrical Control Unit) judges that motorcycle is in non-idling mode, such doing might cause and causes erroneous judgement because the engine air position switch damages; While is on the motor of electrodeless variable-speed, owing to do not have neutral and neutral position switch, the method just can't judge whether motor is in idling mode.The present invention is basis for estimation with engine speed and accelerator open degree, and the judgement to the engine idle of the electrodeless variable-speed that does not have neutral and neutral position switch is judged and realized to the idling of just having avoided the damage of engine air position switch to cause by accident.Simultaneously, among the present invention, adopt the double standards judgement of engine speed and accelerator open degree can improve the reliability of judgement.The motorcycle that the numerical value of its basis for estimation can be guaranteed to be lower than under this numeric state is to belong to situation about motor need be adjusted under the lowest stable state, is in when having avoided as the motorcycle initiating warming up to start idling mode etc. not need to adjust the erroneous judgement of motor output situation disconnected.
In sum, the present invention can control the engine speed of motorcycle under idling mode better, makes it reach desirable running state, it is fast to have the reaction time, control is fast sensitive, and convenient and reliable advantage can greatly reduce the loss under the motorcycle idling mode.
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Description of drawings
Fig. 1 is the structural representation of the throttle body that adopts among the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
A kind of motorcycle with electronic fuel injection system idle speed control is characterized in that, may further comprise the steps:
A, obtain motorcycle engine target idle speed value and be input in the ECU (Electrical Control Unit) of motorcycle, described target idle speed value refers to that motorcycle is in motor output speed under the minimum steady operational status, obtains by test in advance;
B, as shown in Figure 1, at motorcycle engine throttle body 1 default one and closure passage 2 by-pass line 3 arranged side by side, throttle body 1 appearance is fixed a stepper motor 4 over against by-pass line, stepper motor 4 is connected with the ECU (Electrical Control Unit) of motorcycle and by its control, stepper motor 4 output shafts and a flexible rod 5 screw thread sockets, flexible rod 5 arranges and is positioned at the neutral position in by-pass line cross section when original state over against by-pass line 3 middle parts, during described stepper motor 4 output shaft forward or reverse, can drive flexible rod 5 and stretch out forward and by-pass line 3 all intercepted or can drive flexible rod 5 and withdraw backward and make by-pass line 3 complete conductings;
In c, the motorcycle driving process, detect and judge whether motor is in idling;
After d, judgement motor are in idling mode, with engine speed and the contrast of target idle speed value, when engine speed during greater than the target idle speed value, ECU (Electrical Control Unit) control step motor action, control flexible rod front end progresses into by-pass line inside to reduce the bypath air amount, ECU (Electrical Control Unit) is sent and is instructed the control point fire coil to reduce ignition advance angle to reduce engine speed, up to consistent with the target idle speed value simultaneously; When engine speed during less than the target idle speed value, ECU (Electrical Control Unit) control step motor action, control flexible rod front end is withdrawn gradually and is left by-pass line to increase the bypath air amount, ECU (Electrical Control Unit) is sent instruction control point fire coil increase ignition advance angle to reduce engine speed, up to consistent with the target idle speed value simultaneously.
In the above-mentioned embodiment, be to detect engine speed and judge by throttle position switch detection throttle switching situation whether motor is in idling by engine rotation speed sensor among the step c, judge that specifically value is that engine speed judges that less than 0.6% o'clock motor is in idling mode less than 3000 rev/mins of while accelerator open degrees.During concrete enforcement, how detecting engine speed and accelerator open degree is prior art, the mechanism of detecting engine speed and accelerator open degree all is installed on the existing motorcycle with electronic fuel injection system, just only is used for demonstration and the control of normal running process, do not use on the function that the control idling travels.Specifically, engine speed can detect the engine output shaft rotating speed by speed probe and determine, accelerator open degree can detect by the handle rotation sensor that is arranged on the oil door handle, the handle rotation sensor can adopt electric resistance sensor, namely the angle of coming the reaction oil door handle to rotate by changes in resistance when handle rotates changes, belong to prior art, it has the accurate characteristics of detection.
In the specific implementation process, firing angle is preferably regulated according to following table according to the situation of change of idling difference among the present invention.
| The idling difference | Firing angle changes | The idling difference | Firing angle changes |
| 384 | -5 | -384 | 5 |
| 352 | -5 | -352 | 5 |
| 320 | -4.5 | -320 | 4.5 |
| 288 | -4.5 | -288 | 4.5 |
| 256 | -4 | -256 | 4 |
| 224 | -4 | -224 | 4 |
| 192 | -3.5 | -192 | 3.5 |
| 160 | -3 | -160 | 3 |
| 128 | -2 | -128 | 2 |
| 96 | -1.5 | -96 | 1.5 |
| 64 | 0 | -64 | 0 |
| 32 | 0 | -32 | 0 |
The idling difference is in the last table: the numerical value of actual idle speed-target idling, unit is rev/min, and firing angle changes and refers to need on existing firing angle basis the value that changes, and unit is degree.The bypath air amount corresponding with above-mentioned idling difference excursion regulated situation of change, stepper motor drives the flexible rod front end and extend out to by-pass line equably step by step by the neutral position in by-pass line cross section and deaden or be retracted to step by step the complete conducting of by-pass line fully, when wherein fixed value of the every variation of idling difference control firing angle is done above-mentioned variation, control corresponding stepper motor and rotate a tilt fixing, simultaneously described by-pass line adopts the pipeline of caliber 6mm.
The corresponding control mode of above-mentioned concrete variation is for to obtain through test, adopt this corresponded manner to control, can guarantee effectively to control practical engine speeds and the target idling speed is consistent, make its error be no more than ± 100 rev/mins, satisfy the idling requirement of motorcycle fully.
Claims (3)
1. motorcycle with electronic fuel injection system idle speed control, it is characterized in that, judge by detecting engine speed and throttle switching situation whether motor is in idling, after judging that motor is in idling, adopt control throttle valve bypass pipeline Throughput and control ignition advance angle to regulate the motorcycle engine rotating speed, make it consistent with the target idle speed value.
2. a kind of motorcycle with electronic fuel injection system idle speed control as claimed in claim 1 is characterized in that, specifically may further comprise the steps:
A, obtain motorcycle engine target idle speed value and be input in the ECU (Electrical Control Unit) of motorcycle, described target idle speed value refers to that motorcycle is in motor output speed under the minimum steady operational status, obtains by test in advance;
B, at motorcycle engine throttle body default one and closure passage by-pass line arranged side by side, the throttle body appearance is fixed a stepper motor over against by-pass line, stepper motor is connected with the ECU (Electrical Control Unit) of motorcycle and by its control, stepper motor output shaft and a flexible rod screw thread socket, flexible rod arranges and is positioned at the neutral position in by-pass line cross section when original state over against the by-pass line middle part, during described stepper motor output shaft forward or reverse, can drive flexible rod and stretch out forward and by-pass line all intercepted or can drive flexible rod and withdraw backward and make the complete conducting of by-pass line;
In c, the motorcycle driving process, detect and judge whether motor is in idling;
After d, judgement motor are in idling mode, with engine speed and the contrast of target idle speed value, when engine speed during greater than the target idle speed value, ECU (Electrical Control Unit) control step motor action, control flexible rod front end progresses into by-pass line inside to reduce the bypath air amount, ECU (Electrical Control Unit) is sent and is instructed the control point fire coil to reduce ignition advance angle to reduce engine speed, up to consistent with the target idle speed value simultaneously; When engine speed during less than the target idle speed value, ECU (Electrical Control Unit) control step motor action, control flexible rod front end is withdrawn gradually and is left by-pass line to increase the bypath air amount, ECU (Electrical Control Unit) is sent instruction control point fire coil increase ignition advance angle to reduce engine speed, up to consistent with the target idle speed value simultaneously.
3. motorcycle with electronic fuel injection system idle speed control as claimed in claim 2, it is characterized in that, be by detecting engine speed and detect throttle switching situation by throttle position switch and judge whether motor is in idling, judging that specifically value is that engine speed judges that less than 0.6% o'clock motor is in idling mode less than 3000 rev/mins of while accelerator open degrees among the step c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310307985.8A CN103343717B (en) | 2013-07-22 | 2013-07-22 | A kind of motorcycle with electronic fuel injection system idle speed control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310307985.8A CN103343717B (en) | 2013-07-22 | 2013-07-22 | A kind of motorcycle with electronic fuel injection system idle speed control |
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| CN103343717A true CN103343717A (en) | 2013-10-09 |
| CN103343717B CN103343717B (en) | 2016-04-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751133A (en) * | 2019-03-13 | 2019-05-14 | 重庆宗申发动机制造有限公司 | A kind of double-cylinder gasoline engine mechanical electric injecting air damper |
| CN111301182A (en) * | 2018-12-12 | 2020-06-19 | 上海汽车集团股份有限公司 | Charging control method and device and electronic equipment |
| CN112455594A (en) * | 2020-11-30 | 2021-03-09 | 广东高标电子科技有限公司 | Idling control method for small electric vehicle and small electric vehicle |
| CN113217251A (en) * | 2021-06-02 | 2021-08-06 | 江门市大长江集团有限公司 | Motorcycle, ignition timing control method and apparatus, and computer-readable storage medium |
| CN116220953A (en) * | 2023-05-06 | 2023-06-06 | 福鼎市福海化油器有限公司 | Idle speed mixing ratio adjusting mechanism of carburetor and adjusting method thereof |
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| JPH08254140A (en) * | 1995-03-16 | 1996-10-01 | Toyota Motor Corp | Fuel injection quantity control device for internal combustion engine |
| CN101858271A (en) * | 2010-04-30 | 2010-10-13 | 浙江飞亚电子有限公司 | Rotational speed control method and device for idle speed of petrol engine and working condition of small accelerator |
| CN201687587U (en) * | 2010-04-13 | 2010-12-29 | 重庆宗申发动机制造有限公司 | Zero idle speed control system of motorcycle |
| CN102207036A (en) * | 2010-03-31 | 2011-10-05 | 本田技研工业株式会社 | Engine controlling apparatus for motorcycle |
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2013
- 2013-07-22 CN CN201310307985.8A patent/CN103343717B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08254140A (en) * | 1995-03-16 | 1996-10-01 | Toyota Motor Corp | Fuel injection quantity control device for internal combustion engine |
| CN102207036A (en) * | 2010-03-31 | 2011-10-05 | 本田技研工业株式会社 | Engine controlling apparatus for motorcycle |
| CN201687587U (en) * | 2010-04-13 | 2010-12-29 | 重庆宗申发动机制造有限公司 | Zero idle speed control system of motorcycle |
| CN101858271A (en) * | 2010-04-30 | 2010-10-13 | 浙江飞亚电子有限公司 | Rotational speed control method and device for idle speed of petrol engine and working condition of small accelerator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111301182A (en) * | 2018-12-12 | 2020-06-19 | 上海汽车集团股份有限公司 | Charging control method and device and electronic equipment |
| CN111301182B (en) * | 2018-12-12 | 2022-08-19 | 上海汽车集团股份有限公司 | Charging control method and device and electronic equipment |
| CN109751133A (en) * | 2019-03-13 | 2019-05-14 | 重庆宗申发动机制造有限公司 | A kind of double-cylinder gasoline engine mechanical electric injecting air damper |
| CN112455594A (en) * | 2020-11-30 | 2021-03-09 | 广东高标电子科技有限公司 | Idling control method for small electric vehicle and small electric vehicle |
| CN112455594B (en) * | 2020-11-30 | 2022-04-15 | 广东高标电子科技有限公司 | Idling control method for small electric vehicle and small electric vehicle |
| CN113217251A (en) * | 2021-06-02 | 2021-08-06 | 江门市大长江集团有限公司 | Motorcycle, ignition timing control method and apparatus, and computer-readable storage medium |
| CN116220953A (en) * | 2023-05-06 | 2023-06-06 | 福鼎市福海化油器有限公司 | Idle speed mixing ratio adjusting mechanism of carburetor and adjusting method thereof |
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| CN103343717B (en) | 2016-04-13 |
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