CN203383907U - Electronic injection motorcycle idle control system and throttle valve adjusting mechanism - Google Patents
Electronic injection motorcycle idle control system and throttle valve adjusting mechanism Download PDFInfo
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- CN203383907U CN203383907U CN201320436265.7U CN201320436265U CN203383907U CN 203383907 U CN203383907 U CN 203383907U CN 201320436265 U CN201320436265 U CN 201320436265U CN 203383907 U CN203383907 U CN 203383907U
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- motorcycle
- pass line
- throttle valve
- idling
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Abstract
The utility model discloses a throttle valve adjusting mechanism. A bypass pipeline arranged in parallel with a throttle valve passage is preset on a throttle valve body; a stepping motor is fixed on the outer surface of the throttle valve body and directly faces the bypass pipeline; an output shaft of the stepping motor is in threaded connection with a telescopic link in a sleeving manner, and can be controlled to stretch into the bypass pipeline to realize adjustment. The throttle valve adjusting mechanism has the advantages of simple structure and control sensitivity and reliability. The utility model further discloses an electric control unit, an engine speed sensor, a throttle position sensor, an ignition coil and an electronic injection motorcycle idle control system comprising the throttle valve adjusting mechanism and other components. When the electronic injection motorcycle idle control system is used, the engine rotation speed under the idle state of the motorcycle can be well controlled, so that the motorcycle is in the ideal running state; the advantages of high response speed, sensitivity and quickness in control, great convenience and high reliability are achieved; the loss under the idle state of the motorcycle can be reduced greatly.
Description
Technical field
The utility model relates to a kind of motorcycle with electronic fuel injection system, especially relates to a kind of idling speed control system of electronic fuel injection motorcycle and closure regulating mechanism.
Background technique
Motorcycle with electronic fuel injection system, refer to and adopted electric jet technology to light a fire and the motorcycle of fuel feeding.In motorcycle with electronic fuel injection system, cancelled carburetor arrangement with EFI system and device (EFI), the ECU (Electrical Control Unit) that employing contains the EFI special-purpose software (ECU) 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 the sensor such as crankshaft position sensor and lambda sensor is sent to ECU, again by after the comprehensive judgement of ECU, carrying out fuel feeding, 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 reach at any time, thereby make the fuel consumption reduction of motorcycle, discharge improves, combination property improves greatly.
The motorcycle idle speed state, refer to that the output of motorcycle motive power is disconnected, the working state under race of engine situation.During motorcycle driving, just usually in idling mode, under this idling mode, in order to reduce motor, economize consumption while slowly sliding waiting for red light or run into traffic congestion, just need to carry out the rotating speed of idle speed control with the reduce motor.
In automobile, the idle speed control technology is comparatively ripe, and automobile is generally that multicylinder engine (four cylinders or more than), idling are easily stable; And motorcycle is generally single cylinder and twin cylinder engine is more, idle speed value fluctuation is larger.Therefore the idle speed control technology of using in automobile can not be applied directly on motorcycle.
In existing motorcycle with electronic fuel injection system, when the vehicle idling state, as actual idling and target idling have deviation, be air inflow while by the artificial idle screw of manually adjusting on throttle body, regulating idling, to reach the purpose of adjusting idling.The defect of the method, due to the scattered error of motor and throttle body, while causing the idle speed air admission amount to have difference, motorcycle to dispatch from the factory, these all need artificial manually to adjust, and have increased people's workload; It two is when motorcycle uses under altitude environment, because the plateau atmospheric pressure is low, cause the idle speed air admission quantitative change that mixed up when dispatching from the factory little, now just need carry out the secondary adjustment.And the utility model is owing to being that ECU (Electrical Control Unit) drives idle speed step motor to adjust voluntarily, can self adaption under various environment.This has just been avoided artificially manually having adjusted, having reduced people's workload.
In addition, in prior art, also exist some automatically to control the method for motorcycle idle speed, for example disclosed a kind of idle speed rotating speed closed ring control method for motorcycle electric controlled engine of China's number of patent application 03137256.2; 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, control the poor defect of sensitivity.
The model utility content
For the deficiencies in the prior art, technical problem to be solved in the utility model is, how a kind of closure regulating mechanism that can adjust quickly and easily the throttle valve bypass air quantity is provided, a kind of idling speed control system of electronic fuel injection motorcycle that has adopted above-mentioned closure regulating mechanism is provided simultaneously, when being used, it can complete quickly and easily the idling adjustment to engine speed, to reduce the idling loss, there is the reaction time fast, control the reliable characteristics that facilitate.
In order to solve the problems of the technologies described above, adopted following technological scheme in the utility model:
A kind of closure regulating mechanism, comprise the engine air throttle body, it is characterized in that, on 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 output shaft and flexible rod screw thread socket, flexible rod arranges over against by-pass line middle part and (when original state) is positioned at the neutral position in by-pass line cross section, during described stepper motor output shaft forward or reverse, can drive flexible rod stretches out forward and by-pass line is all intercepted or can drive flexible rod and retract backward and make the complete conducting of by-pass line.
As optimization, described by-pass line caliber is 6mm.This numerical value can be beneficial to more to be realized by bypath air amount control engine output speed, improves reaction velocity.
The invention also discloses a kind of idling speed control system of electronic fuel injection motorcycle, comprise ECU (Electrical Control Unit), engine rotation speed sensor, throttle position switch and spark coil, it is characterized in that, also comprise the closure regulating mechanism of said structure; Described engine rotation speed sensor, throttle position switch are electrically connected to ECU (Electrical Control Unit) respectively; Described ECU (Electrical Control Unit) is electrically connected to stepper motor and spark coil in the closure regulating mechanism respectively again.
When above-mentioned idling speed control system of electronic fuel injection motorcycle is used, detect engine speed by engine rotation speed sensor, detect accelerator open degree by throttle position switch simultaneously, and then judge that whether motorcycle is in idling mode, when motorcycle during in idling mode, the engine speed that can engine rotation speed sensor be detected by ECU (Electrical Control Unit) and the contrast of target idle speed value, when engine speed is greater than the target idle speed value, ECU (Electrical Control Unit) control step motor action, control the flexible rod front end and progress into by-pass line inside to reduce the bypath air amount, the while ECU (Electrical Control Unit) is sent instruction control point fire coil and is reduced ignition advance angle to reduce engine speed, until consistent with the target idle speed value, when engine speed is less than the target idle speed value, ECU (Electrical Control Unit) control step motor action, control flexible rod front end is retracted 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, until consistent with the target idle speed value simultaneously.
Wherein, the closure regulating mechanism of employing, by a default by-pass line on throttle body, then arrange the size that a stepper motor is controlled the normal air amount, has simple in structurely, is beneficial to processing and implementation, controls sensitive reliable advantage.
Closure regulating mechanism of the present utility model, have simple in structure, control sensitive reliable advantage, idling speed control system of electronic fuel injection motorcycle based on this closure regulating mechanism, can control the engine speed of motorcycle under idling mode during use better, makes it reach desirable running state, it is fast to have the reaction time, control sensitive fast, convenient and reliable advantage, can greatly reduce the loss under the motorcycle idle speed state.
In sum, the utility model can be controlled the engine speed of motorcycle under idling mode better, makes it reach desirable running state, it is fast to have the reaction time, control sensitive fast, convenient and reliable advantage, can greatly reduce the loss under the motorcycle idle speed state.
The accompanying drawing explanation
The structural representation that Fig. 1 is the closure regulating mechanism that adopts in the utility model.
The module frame schematic diagram that Fig. 2 is idling speed control system of electronic fuel injection motorcycle of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of closure regulating mechanism, comprise engine air throttle body 1, on 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 3, stepper motor 4 output shafts and flexible rod 5 screw thread sockets, flexible rod 5 arranges and is positioned at the neutral position in by-pass line cross section over against by-pass line 3 middle parts, during described stepper motor 4 output shaft forward or reverse, can drive flexible rod 5 stretches out forward and by-pass line 3 is all intercepted or can drive flexible rod and retract backward and make the complete conducting of by-pass line 3, described by-pass line 3 calibers are 6mm.
As shown in Figure 2, a kind of idling speed control system of electronic fuel injection motorcycle, comprise ECU (Electrical Control Unit), engine rotation speed sensor, throttle position switch and spark coil, it is characterized in that, also comprises the closure regulating mechanism of said structure; Described engine rotation speed sensor, throttle position switch are electrically connected to ECU (Electrical Control Unit) respectively; Described ECU (Electrical Control Unit) is electrically connected to stepper motor and spark coil in the closure regulating mechanism respectively again.
When above-mentioned idling speed control system of electronic fuel injection motorcycle is used for idle speed control, can be specifically to comprise the following 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 motorcycle motor output speed under minimum steady operational status, by test, obtains in advance;
In b, motorcycle driving process, detect and judge that whether motor is in idling; Specifically by detecting engine speed and detecting throttle switching situation by throttle position switch, judge that whether motor is in idling, specifically judge that value is that engine speed is less than when 3000 rev/mins accelerator open degree is less than 0.6% the judgement motor in idling mode simultaneously;
C, judgement motor are after idling mode, by engine speed and the contrast of target idle speed value, when engine speed is greater than the target idle speed value, ECU (Electrical Control Unit) control step motor action, control the flexible rod front end and progress into by-pass line inside to reduce the bypath air amount, the while ECU (Electrical Control Unit) is sent instruction control point fire coil and is reduced ignition advance angle to reduce engine speed, until consistent with the target idle speed value; When engine speed is less than the target idle speed value, ECU (Electrical Control Unit) control step motor action, control flexible rod front end is retracted 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, until consistent with the target idle speed value simultaneously.
With respect to prior art, when the utility model is used, adopt the adjustment of simultaneously controlling idling air quantity and firing angle that actual speed and target idling are matched, tolerance and firing angle unlinkability idling is adjusted separately like this, while 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 the benefits such as response is fast.In addition, in the closure regulating mechanism that the utility model adopts, increased by-pass line and adopt 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 on throttle body, it has simple in structure, easy to implement, control and facilitate the advantages such as sensitive.
Existing electric injection system is generally to gather the neutral signal to judge that whether motor is in idling mode, its principle is neutral signal access ECU (Electrical Control Unit), when neutral signal numerical value is high level, ECU (Electrical Control Unit) judgement motor in idling mode, when neutral signal numerical value is low level, ECU (Electrical Control Unit) judgement motorcycle likely causes because the engine air position switch damages and causes erroneous judgement in non-idling mode, such doing; Simultaneously on the motor of electrodeless variable-speed, owing to not having neutral and neutral position switch, the method just can't judge that whether motor is in idling mode.Take engine speed and accelerator open degree when the utility model is used is basis for estimation, just avoided the engine air position switch the to damage idling erroneous judgement caused and the judgement that has realized the engine idle of the electrodeless variable-speed to there is no neutral and neutral position switch.Simultaneously, when the utility model is used, adopt the double standards judgement of engine speed and accelerator open degree can improve the reliability of judgement.It is to belong to motor to be adjusted to the situation under the lowest stable state that the numerical value of its basis for estimation can be guaranteed lower than the motorcycle under this numeric state, and while having avoided as the motorcycle initiating warming up, in starting idling mode etc., not need to adjust the erroneous judgement of motor output situation disconnected.
During concrete enforcement, engine speed can detect by speed probe, throttle position switch can adopt the handle rotation sensor be arranged on oil door handle, the handle rotation sensor can adopt electric resistance sensor, the i.e. variation by resistance comes the angle that the reaction oil door handle rotates to change, and then reaction accelerator open degree change in location, there are the accurate characteristics of detection.
In specific implementation process, firing angle is preferably regulated according to following table according to the situation of change of idling difference.
| 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 |
In upper table, idling is poor is: the numerical value of actual idle speed-target idling, and unit is rev/min, and firing angle changes and refers to need the value changed on existing firing angle basis, 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 step by step equably by-pass line 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 control firing angle of the every variation of idling difference 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 be controlled, 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, meet the idling requirement of motorcycle fully.
Claims (3)
1. a closure regulating mechanism, comprise the engine air throttle body, it is characterized in that, on 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 output shaft and flexible rod screw thread socket, flexible rod arranges and is positioned at the neutral position in by-pass line cross section 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 is all intercepted or can drive flexible rod and retract backward and make the complete conducting of by-pass line.
2. closure regulating mechanism as claimed in claim 1, is characterized in that, described by-pass line caliber is 6mm.
3. an idling speed control system of electronic fuel injection motorcycle, comprise ECU (Electrical Control Unit), engine rotation speed sensor, throttle position switch and spark coil, it is characterized in that, also comprises the described closure regulating mechanism of claim 1 or 2; Described engine rotation speed sensor, throttle position switch are electrically connected to ECU (Electrical Control Unit) respectively; Described ECU (Electrical Control Unit) is electrically connected to stepper motor and spark coil in the closure regulating mechanism respectively again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320436265.7U CN203383907U (en) | 2013-07-22 | 2013-07-22 | Electronic injection motorcycle idle control system and throttle valve adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320436265.7U CN203383907U (en) | 2013-07-22 | 2013-07-22 | Electronic injection motorcycle idle control system and throttle valve adjusting mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN203383907U true CN203383907U (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320436265.7U Expired - Fee Related CN203383907U (en) | 2013-07-22 | 2013-07-22 | Electronic injection motorcycle idle control system and throttle valve adjusting mechanism |
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| CN (1) | CN203383907U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870169A (en) * | 2017-04-07 | 2017-06-20 | 四川森洁燃气设备有限公司 | Idle speed adjustment solar term structure with long service life |
| CN113202635A (en) * | 2021-05-20 | 2021-08-03 | 重庆隆鑫机车有限公司 | Throttle valve body and engine |
-
2013
- 2013-07-22 CN CN201320436265.7U patent/CN203383907U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870169A (en) * | 2017-04-07 | 2017-06-20 | 四川森洁燃气设备有限公司 | Idle speed adjustment solar term structure with long service life |
| CN113202635A (en) * | 2021-05-20 | 2021-08-03 | 重庆隆鑫机车有限公司 | Throttle valve body and engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 400037 Chongqing city Beibei District caijiagang Zhen Tong Xing Industrial Park Fengqi Road No. 16 Patentee after: Lifan Industry (Group) Co., Ltd. Address before: 400037 Chongqing city Shapingba District No. 60 Zhangjiawan Bridge Patentee before: Lifan Industry (Group) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20200722 |