CN101392698A - Small-sized engine electric-controlled system - Google Patents
Small-sized engine electric-controlled system Download PDFInfo
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- CN101392698A CN101392698A CNA2008102188575A CN200810218857A CN101392698A CN 101392698 A CN101392698 A CN 101392698A CN A2008102188575 A CNA2008102188575 A CN A2008102188575A CN 200810218857 A CN200810218857 A CN 200810218857A CN 101392698 A CN101392698 A CN 101392698A
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- carburetor
- solenoid valve
- small
- controlled system
- engine electric
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- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
The invention belongs to the technical field of engine, and in particular discloses an electronically-controlled system of a small-sized engine, which comprises an electronically-controlled unit ECU, a sensor and an actuator which are in electrical connection with the electronically-controlled unit ECU, wherein the sensor comprises a temperature sensor arranged on a cylinder cover or a cylinder body of the engine, a trigger coil of the engine self, an oxygen sensor arranged on a vent of the cylinder body of the engine or on a silencer; the actuator comprises an electromagnetic valve arranged on a carburetor, a carbon canister electromagnetic valve connected between a carbon canister and the carburetor, and a system state indicating lamp arranged on an instrument panel. The electronically-controlled system of the small engine combines with the technology of exhaust gas after-treatment, can ensure that emission of exhaust gas can fulfill national phase III emission regulation for motorcycles, Europe III and Europe IV emission regulation for the motorcycles and fuel evaporative pollutants emission regulation, and can maintain or improve economical efficiency, dynamic property and driving comfort property of the motorcycles simultaneously.
Description
Technical field
The present invention relates to the control system of motor, particularly a kind of motor engine electric control carburetor oil-supply system and fuel evaporation pollutant processing system.
Background technique
In the prior art, the oil supply system of motorcycle generally is divided into two kinds: carburetor circuit and electric control fuel oil jet system.
Carburetor oil-supply system is simple in structure, and cost is low, but the control accuracy of air fuel ratio is not high, is difficult to control preferably the discharge amount of harmful exhaust.Along with the raising of emission regulation demands, just seem more and more difficult with the carburetor circuit reply.
Electric control fuel oil jet system can accurately be controlled air fuel ratio, can effectively control the discharge amount of harmful exhaust, and also the efficient performance for tail-gas after treatment apparatus provides assurance, can further improve engine performance simultaneously.Yet electric control fuel oil jet system is huger and complicated than carburetor circuit, car load change amount is big, need to drop into more design and manufacture cost early stage, later stage need be dropped into more manpower and materials and be carried out after sales service staff training and equipment purchasing, these finally cause car load to cost an arm and a leg, and therefore are difficult to popularize in the field that this cost control of motorcycle is had relatively high expectations.
In addition, though electric control fuel oil jet system possesses " limp-home " function, only can tackle the situation that sensor breaks down; If final controlling element breaks down, even ECU is when breaking down, and car load can't travel.When storage battery did not have electricity, system also can't work, and motorcycle can not be ridden.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of small-sized engine electric-controlled system is provided, this small-sized engine electric-controlled system, control accuracy height, reliable performance, car load are changed little, Perfect in shape and function, can effectively control fuel evaporation pollutant, minimizing is to the pollution of environment, and it is simple and practical, with low cost simultaneously.
In order to realize above-mentioned technical purpose, the present invention realizes by following technological scheme:
Small-sized engine electric-controlled system of the present invention, comprise electronic control unit ECU, and the sensor and the final controlling element that are electrically connected with electronic control unit ECU, described sensor comprises the trigger winding of the temperature transducer that is installed on engine cylinder cover or the cylinder body, motor self and is installed in lambda sensor on engine cylinder-body relief opening or the silencing apparatus, and described final controlling element comprises the solenoid valve that is installed on the Carburetor, be connected the charcoal jar solenoid valve between charcoal jar and the Carburetor and be installed in system state indicator on the instrument panel.
As the further improvement of above-mentioned technology, described solenoid valve is installed on the low speed air flue of Carburetor, and this solenoid valve is one by electronic control unit ECU it to be applied the break-make type solenoid valve of duty cycle signals.After electronic control unit ECU applies duty cycle signals to it,, just adjust each make and break period interior current"on"time of shared ratio and reach the effect of adjusting the solenoid valve aperture, thereby adjust the air compensation of low speed air flue by adjusting the size of dutycycle.
Further improvement as above-mentioned technology, the described charcoal jar solenoid valve that is connected between charcoal jar and the Carburetor, be one it to be applied the break-make type solenoid valve of duty cycle signals by electronic control unit ECU, electronic control unit ECU applies duty cycle signals to it, controls the flow of charcoal jar desorption by the size of control dutycycle.
Further improvement as above-mentioned technology, another solenoid valve also is installed on the main airway of Carburetor, this solenoid valve is one by electronic control unit ECU it to be applied the break-make type solenoid valve of duty cycle signals, electronic control unit ECU applies duty cycle signals to it, by adjusting the size of dutycycle, just adjust each make and break period interior current"on"time of shared ratio and reach the effect of adjusting the solenoid valve aperture, thereby adjust the air compensation of main airway.
Further improvement as above-mentioned technology, small-sized engine electric-controlled system of the present invention also comprises on the inlet flange that is installed in motor or the Carburetor and is used for the B/P EGR Back Pressure Transducer EGR of the air-intake negative-pressure of induction generator, and can also comprise and be installed in the throttle opening/plunger displacement sensor that is used to respond to carburetor throttle opening/plunger displacement on the Carburetor.
Compared with prior art, the invention has the beneficial effects as follows:
(1) " limp-home " function that the present invention is directed to existing automatical control system can't be tackled the shortcoming that final controlling element and electronic control unit ECU break down, and breaks down and can make the automatical control system of motorcycle driving too even work out all the sensors, final controlling element even ECU; And do not have at storage battery under the situation of electricity, system is the same after motor utilizes foot-on can normally use, unaffected, has exempted user's trouble and worry.
(2) the present invention has also also increased control fuel evaporation pollutant processing system at the native system that requires of fuel evaporation pollutant Abgasgesetz, can effectively control fuel evaporation pollutant, minimizing is to the pollution of environment, can make exhaust emissions satisfy national three phase motorcycle emission rules, Europe III, Europe IV motorcycle emission rules, fuel evaporation pollutant Abgasgesetz, can also keep or improve simultaneously Economy, power character, the ride comfort of motorcycle effectively.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in detail:
Fig. 1 is small-sized engine electric-controlled system embodiment one structural representation of the present invention;
Fig. 2 is small-sized engine electric-controlled system embodiment two structural representations of the present invention;
Fig. 3 is small-sized engine electric-controlled system embodiment three structural representations of the present invention;
Fig. 4 is small-sized engine electric-controlled system embodiment four structural representations of the present invention;
Fig. 5 is small-sized engine electric-controlled system embodiment five structural representations of the present invention;
Fig. 6 is small-sized engine electric-controlled system embodiment six structural representations of the present invention;
Fig. 7 is small-sized engine electric-controlled system embodiment seven structural representations of the present invention;
Fig. 8 is small-sized engine electric-controlled system embodiment eight structural representations of the present invention.
Embodiment
Embodiment one:
As shown in Figure 1, small-sized engine electric-controlled system of the present invention comprises electronic control unit ECU10, and the sensor and the final controlling element that are electrically connected with electronic control unit ECU10; Wherein sensor comprise the temperature transducer 8 that is installed on engine cylinder cover or the cylinder body, motor self trigger winding 12, be installed in the lambda sensor 9 on engine cylinder-body relief opening or the silencing apparatus; Final controlling element comprises the solenoid valve 1 that is installed on the Carburetor 3, be connected charcoal jar solenoid valve 5 between charcoal jar 4 and the Carburetor 3, be installed in the system state indicator 11 on the instrument panel.
The user can know whether system is normal by system state indicator 11 behind the motorcycle prestart.Open key, before igniting not, have fault as system state indicator 11 illustrative system that do not work; The supervisory system of electronic control unit ECU10 continuation in the process of moving after the starting, as finding that system unit breaks down, system state indicator 11 can notify custom system to have fault by flicker.The back user of breaking down can fix a breakdown voluntarily or send after-sale service department maintenance according to operating instruction.
The engine cylinder head temperature that electronic control unit ECU10 senses according to temperature transducer 8 after the engine start, the rotating speed that the calculated signals of sending according to trigger winding 12 goes out, send corresponding duty cycle signals to solenoid valve 1, drive solenoid valve 1 and open suitable aperture, after motor is finished hot machine, electronic control unit ECU10 is again according to the aperture of the SC sigmal control solenoid valve 1 of lambda sensor 9, air compensation is carried out feedback control, the air fuel ratio of the mixed gas that enters motor is near the chemically correct fuel all the time.
Behind the engine thermal machine, electronic control unit ECU10 sends corresponding duty cycle signals according to tach signal to charcoal jar solenoid valve 5, drive charcoal jar solenoid valve 5 and open suitable aperture, under the effect of engine charge negative pressure, the fuel vapor that the charcoal jar is 4 li is inhaled into the Carburetor mixing chamber through charcoal jar solenoid valve 5 by suitable flow and enters engine combustion again, electronic control unit ECU10 does corresponding compensation according to the SC sigmal control solenoid valve 1 of lambda sensor 9 simultaneously, make air fuel ratio maintain ideal range, the performance of assurance motor is not subjected to the influence of desorption.
Embodiment two:
Present embodiment and the foregoing description one are basic identical, its main difference part is: as shown in Figure 2, another solenoid valve 2 also is installed on the main airway of Carburetor 3, this solenoid valve 2 and solenoid valve 1 are the same all to be break-make type solenoid valve, electronic control unit ECU10 applies duty cycle signals to it, by adjusting the size of dutycycle, just adjust each make and break period interior current"on"time of shared ratio and reach the effect of adjusting the solenoid valve aperture, thereby adjust the air compensation of main airway.
Because if will implement control more accurately to high speed, or on the big slightly motor of discharge capacity, use native system, increase another solenoid valve 2 after, can increase air compensation.Solenoid valve 2 is the same with the working principle of solenoid valve 1, electronic control unit ECU10 is by adjusting the aperture of solenoid valve 1 and solenoid valve 2 simultaneously, air compensation is carried out feedback control, the air fuel ratio of the mixed gas that enters motor is near the chemically correct fuel all the time.
Embodiment three:
Present embodiment and the foregoing description one are basic identical, its difference is: as shown in Figure 3, in order to control air fuel ratio more accurately, the B/P EGR Back Pressure Transducer EGR 7 of the air-intake negative-pressure that is used for induction generator is installed on the inlet flange of motor or Carburetor, by the perception engine negative pressure, judge the operating mode of motor, each operating point is implemented air fuel ratio control accurately.
Embodiment four:
Present embodiment and the foregoing description two are basic identical, and its difference is: as shown in Figure 4, in order to control air fuel ratio more accurately, the B/P EGR Back Pressure Transducer EGR 7 of the air-intake negative-pressure that is used for induction generator is installed on the inlet flange of motor or Carburetor.Also promptly on embodiment one basis, increased solenoid valve 2 and B/P EGR Back Pressure Transducer EGR 7 simultaneously,, judged the operating mode of motor by the perception engine negative pressure, thus the aperture of control electromagnetic valve 1 and/or solenoid valve 2, each operating point is implemented air fuel ratio control accurately.
Embodiment five:
Present embodiment and the foregoing description one are basic identical, its difference is: as shown in Figure 5, in order to control air fuel ratio more accurately, throttle opening/plunger displacement the sensor 6 that is used to respond to carburetor throttle opening/plunger displacement also is installed on Carburetor, closure/plunger aperture by the perception motor, judge the operating mode of motor, thus the aperture of control electromagnetic valve 1, each operating point is implemented air fuel ratio control accurately.
Embodiment six:
Present embodiment and the foregoing description two are basic identical, its difference is: as shown in Figure 6, for air fuel ratio can be controlled more accurately, the throttle opening/plunger displacement sensor 6 that is used to respond to carburetor throttle opening/plunger displacement is installed also on Carburetor.Also promptly on embodiment one basis, increased solenoid valve 2 and throttle opening/plunger displacement sensor 6 simultaneously, closure/plunger aperture by the perception motor, judge the operating mode of motor, thereby the aperture of control electromagnetic valve 1 and/or solenoid valve 2 is to implement air fuel ratio control accurately to each operating point.
Embodiment seven:
Present embodiment and the foregoing description five are basic identical, its difference is: as shown in Figure 7, in order to control air fuel ratio more accurately, the B/P EGR Back Pressure Transducer EGR 7 of the air-intake negative-pressure that is used for induction generator is installed on the inlet flange of motor or Carburetor, also promptly on embodiment one basis, increased B/P EGR Back Pressure Transducer EGR 7 and throttle opening/plunger displacement sensor 6 simultaneously, owing to increase B/P EGR Back Pressure Transducer EGR 7 and throttle opening/plunger displacement sensor 6 simultaneously, electronic control unit ECU10 is by calculating, judge the operating mode of motor and add/retardation, thereby the aperture of control electromagnetic valve 1 is to implement air fuel ratio control accurately to each operating point.
Embodiment eight:
Present embodiment and the foregoing description four are basic identical, its difference is: as shown in Figure 8, in order to control the air fuel ratio of acceleration, deceleration more accurately, throttle opening/plunger displacement the sensor 6 that is used to respond to carburetor throttle opening/plunger displacement also is installed on Carburetor, closure/plunger aperture by the perception motor, judge the operating mode of motor, each operating point is implemented air fuel ratio control accurately.Owing to increase B/P EGR Back Pressure Transducer EGR 7 and throttle opening/plunger displacement sensor 6 simultaneously, electronic control unit ECU10 is by calculating, judge the operating mode of motor and add/retardation, thereby the aperture of control electromagnetic valve 1 and/or solenoid valve 2 makes air fuel ratio reach optimum.
Claims (9)
1. small-sized engine electric-controlled system, it is characterized in that: comprise electronic control unit ECU (10), and the sensor and the final controlling element that are electrically connected with electronic control unit ECU (10), described sensor comprises the temperature transducer (8) that is installed on engine cylinder cover or the cylinder body, the trigger winding of motor self (12) and be installed in lambda sensor (9) on engine cylinder-body relief opening or the silencing apparatus, described final controlling element comprises the solenoid valve (1) that is installed on the Carburetor (3), be connected the charcoal jar solenoid valve (5) between charcoal jar (4) and the Carburetor (3) and be installed in system state indicator (11) on the instrument panel.
2. small-sized engine electric-controlled system according to claim 1, it is characterized in that: described solenoid valve (1) is installed on the low speed air flue of Carburetor (3), and this solenoid valve (1) is one by electronic control unit ECU (10) it to be applied the break-make type solenoid valve of duty cycle signals.
3. small-sized engine electric-controlled system according to claim 1, it is characterized in that: the described charcoal jar solenoid valve (5) that is connected between charcoal jar (4) and the Carburetor (3) is one by electronic control unit ECU (10) it to be applied the break-make type solenoid valve of duty cycle signals.
4. small-sized engine electric-controlled system according to claim 1, it is characterized in that: another solenoid valve (2) also is installed on the main airway of Carburetor (3), and this solenoid valve (2) is one by electronic control unit ECU (10) it to be applied the break-make type solenoid valve of duty cycle signals.
5. small-sized engine electric-controlled system according to claim 1 is characterized in that: also comprise the B/P EGR Back Pressure Transducer EGR (7) that is used for the air-intake negative-pressure of induction generator on the inlet flange that is installed in motor or the Carburetor.
6. small-sized engine electric-controlled system according to claim 4 is characterized in that: also comprise the B/P EGR Back Pressure Transducer EGR (7) that is used for the air-intake negative-pressure of induction generator on the inlet flange that is installed in motor or the Carburetor.
7. small-sized engine electric-controlled system according to claim 1 is characterized in that: also comprise being installed in the throttle opening/plunger displacement sensor (6) that is used to respond to carburetor throttle opening/plunger displacement on the Carburetor.
8. according to claim 4 or 6 described small-sized engine electric-controlled systems, it is characterized in that: also comprise being installed in the throttle opening/plunger displacement sensor (6) that is used to respond to carburetor throttle opening/plunger displacement on the Carburetor.
9. small-sized engine electric-controlled system according to claim 1, it is characterized in that: also comprise on the inlet flange that is installed in motor or the Carburetor being used for the B/P EGR Back Pressure Transducer EGR (7) of the air-intake negative-pressure of induction generator, and be installed in the throttle opening/plunger displacement sensor (6) that is used to respond to carburetor throttle opening/plunger displacement on the Carburetor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102188575A CN101392698A (en) | 2008-11-03 | 2008-11-03 | Small-sized engine electric-controlled system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102188575A CN101392698A (en) | 2008-11-03 | 2008-11-03 | Small-sized engine electric-controlled system |
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| Publication Number | Publication Date |
|---|---|
| CN101392698A true CN101392698A (en) | 2009-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008102188575A Pending CN101392698A (en) | 2008-11-03 | 2008-11-03 | Small-sized engine electric-controlled system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168622A (en) * | 2011-03-29 | 2011-08-31 | 广州市新智通电子科技有限公司 | Multi-function automatic control system and control method for motorcycle engine |
| CN103939225A (en) * | 2014-02-28 | 2014-07-23 | 济南轻骑发动机有限公司 | Engine cylinder head of light electronic injection pedal motorcycle |
-
2008
- 2008-11-03 CN CNA2008102188575A patent/CN101392698A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168622A (en) * | 2011-03-29 | 2011-08-31 | 广州市新智通电子科技有限公司 | Multi-function automatic control system and control method for motorcycle engine |
| CN103939225A (en) * | 2014-02-28 | 2014-07-23 | 济南轻骑发动机有限公司 | Engine cylinder head of light electronic injection pedal motorcycle |
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Open date: 20090325 |