CN201129219Y

CN201129219Y - Electro-spraying engine for pedal motorcycle

Info

Publication number: CN201129219Y
Application number: CNU200720158339XU
Authority: CN
Inventors: 卢建平; 汪允志; 冯涛; 郭文芹
Original assignee: JINAN QINGQI ENGINE CO Ltd
Current assignee: JINAN QINGQI ENGINE CO Ltd
Priority date: 2007-12-07
Filing date: 2007-12-07
Publication date: 2008-10-08
Anticipated expiration: 2017-12-07

Abstract

Disclosed is an electric fuel injection engine for motor scooters, which relates to an engine for motorcycles. The electric fuel injection engine comprises an engine body, which is characterized in that the engine body comprises a closed-loop electric fuel injection control system, a three-way catalytic converter, an fuel line system and a fault self-test diagnostic system, wherein the closed-loop electric fuel injection control system is composed of an M 3 A module, a cylinder head temperature sensor and a rotational speed sensor which are arranged on the M 3 A module and an oxygen sensor which is arranged on a muffler and close to an exhaust port, the three-way catalytic converter is arranged in the muffler, the M 3 A module is composed of an electrical control unit ECU, a throttle valve, an intake pressure sensor, an intake air temperature sensor and a throttle position sensor. The electric fuel injection engine saves fuel, and the highly integrated M 3 A module fully utilizes the limit space to ensure installation convenience, thereby achieving the standard of stage III of limits for emissions of pollutants from mopeds on the running mode in China, further a water-proof design is utilized in the complete set of connectors, which meets requirement of running in rain, furthermore, the electric fuel injection engine is capable of diagnosing various failures.

Description

A kind of pedal motorcycle electronic fuel injection engine

Technical field

The utility model relates to the motor that a kind of motorcycle is used, the electronic fuel injection engine that specifically a kind of pedal motorcycle is used.

Background technique

Motor on the motorcycle adopts carburetor engine mostly at present, but adopts carburetor engine to have following shortcoming:

1, fuel feeding

Carburetor is one and utilizes simple and mechanical and device principle of hydrodynamics work, is difficult to give engine oil according to desirable air fuel ratio.Even, when factors such as operating mode and environment change, also can depart from the ideal operation state some states more accurate with fuel delivery control.In order to guarantee the cornering ability of vehicle, the method that Carburetor generally adopts is to come fuel feeding in dense partially mode, and this also can cause the waste of fuel oil.

2, igniting

The firing angle of common carburetor engine is the single function of rotating speed, can't consider the factor of vehicle load.Therefore not talkative have an optimum igniting advance angle.

3, deceleration fuel feeding

Motorcycle in the process of moving most of the time be to slide in deceleration, this moment motor do not need fuel oil.But the fuel feeding principle of Carburetor has determined that this moment, a large amount of gasoline was inhaled into intake duct and motor, so caused a large amount of wastes of fuel oil.

4, power

The acceleration of motorcycle depends on the output torque of motor, especially slow-speed of revolution moment of torsion.When slow-speed of revolution throttle wide, because the influence of degree of vacuum, Carburetor can't normal fuel injection, and this moment, Engine torque was little and fluctuation is big, even can cause stopping working, thereby caused Carburetor car acceleration poor.

5, cold starting

Under cold car state, amount of fuel that engine start is required and ambient temperature relation are very big, and temperature is low more, and the fuel oil requirement is big more.Fuel delivery when Carburetor can only rely on the operation chock plate to adjust cold start-up, but the effect of chock plate can not cover very big temperature range, so normally temperature is low more, starts just difficult more.

6, emission request

The motor of common carburetor circuit is difficult to reach Europe III emission regulation demands, also is difficult to its conformity of control even sample car reaches, usually because factors such as manufacturing and adjustment cause very big scattered error.

The model utility content

The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of pedal motorcycle electronic fuel injection engine is provided.

The technical solution of the utility model is: a kind of pedal motorcycle electronic fuel injection engine, comprise engine body, it is characterized in that: comprise module in the engine body by M3A, be arranged on cylinder head temperature transducer and speed probe on the M3A module, and the closed loop electric spray control system that is arranged on the lambda sensor formation of close relief opening on the baffler, be arranged on the three-way catalytic converter in the baffler, fuel path system and failure self-diagnosis system, described M3A module is by ECU (Electrical Control Unit) ECU, closure, air inlet pressure sensor, intake air temperature sensor, throttle position sensor is formed.

The beneficial effects of the utility model are: save fuel oil, highly integrated M3A module makes full use of the convenience that the confined space guarantees installation, reaches motorcycle disposal of pollutants limit value China III stage criterion, and a complete set of connector assembly adopts waterproofing design, satisfy the rainy day and travel, can carry out different fault diagnosis.

Description of drawings

Fig. 1 is a partial arrangement drawing of the present utility model,

Fig. 2 is the partial view that contains the M3A module of the present utility model,

Fig. 3 be the A of Fig. 2 to view,

Fig. 4 is a schematic diagram of the present utility model.

Among the figure: 1, M3A module 2, lambda sensor 3, three-way catalytic converter 4, air inlet pressure sensor 5, throttle position sensor 6, intake air temperature sensor 8, cylinder head temperature transducer 9, crankshaft position sensor 10, oil pump 11, ECU (Electrical Control Unit) ECU 12, fault diagnosis joint.

Embodiment

As shown in the figure.

A kind of pedal motorcycle electronic fuel injection engine, comprise engine body, it is characterized in that: comprise in the engine body by M3A module 1, be arranged on cylinder head temperature transducer 8 and speed probe on the M3A module 1, and the closed loop electric spray control system that is arranged on lambda sensor 2 formations of close relief opening on the baffler, be arranged on the three-way catalytic converter 3 in the baffler, fuel path system and failure self-diagnosis system.Described M3A module 1 is made up of ECU (Electrical Control Unit) ECU11, closure, air inlet pressure sensor 4, intake air temperature sensor 6, throttle position sensor 5, the signal of throttle position sensor 5, air inlet pressure sensor 4, intake air temperature sensor 6, cylinder head temperature transducer 8, lambda sensor 2, trigger winding is transferred to ECU (Electrical Control Unit) ECU11 through after the processing of circuit, and the output terminal of ECU (Electrical Control Unit) ECU11 is connected with spark coil, oil pump 10, oil nozzle.The sensor that is arranged on the M3A module 1 is felt intake temperature, throttle opening, suction pressure signal respectively, be transferred to ECU (Electrical Control Unit) ECU 11 through after the processing of circuit, the crankshaft-position signal that mixture strength signal that the cylinder head temperature signal that ECU 11 gathers according to cylinder head temperature transducer 8 again, lambda sensor 2 are gathered and crankshaft position sensor 9 are gathered, through computing, send a signal to final controlling element: spark coil, oil nozzle, oil pump are carried out corresponding igniting and oil spout.

Main feature of the present utility model:

Accurate fuel feeding: have a large amount of data relevant with fuel feeding in the ECU control unit, be referred to as fuel feeding arteries and veins spectrum, ECU determines fuel injection amount according to many-sided information such as arteries and veins is composed and sensor feedback is returned temperature, rotating speed, driver's intentions.The amount of fuel of Que Dinging is neither wasted like this, also can be sufficient.

Accurately igniting: there are a large amount of data relevant in the ECU control unit equally with igniting, the arteries and veins that is referred to as to light a fire spectrum, ECU determines the igniting of the best according to the information of arteries and veins spectrum and rotating speed, load, thus the saving fuel oil.

DECEL ENLEAN: the utility model is when unclamping throttle, the signal that the ECU control unit is passed back according to throttle position sensor is controlled the fuel injection unit fuel cut-off immediately, when engine speed dropped to idling speed or driver and quickens once more, ECU just controlled fuel injection unit fuel feeding once more according to corresponding rotating speeds signal or throttle signal.So when slowing down, never cause the waste of fuel oil.

Power performance: the influence that fuel feeding of the present utility model is not flowed by engine air, can both normal fuel injection under any state, thus guaranteed the normal output of Under Different Work Condition of Engine moment of torsion.

Cold starting: the utility model can be judged extraneous ambient temperature according to temperature transducer, accurately calculates the fuel delivery of motor actual demand by ECU, controls injection unit again and sprays with the form of high pressure, guarantees that the EFI car is-15 ℃ of normal startups.

Emission request: the utility model can be stablized and accurately control air fuel ratio, guarantees the highest transformation efficiency of catalytic converter, making discharges pollutants drop to minimum, thereby satisfy Europe III even stricter emission regulation demands.

Claims

1, a kind of pedal motorcycle electronic fuel injection engine, comprise engine body, it is characterized in that: comprise module in the engine body by M3A, be arranged on cylinder head temperature transducer and speed probe on the M3A module, and the closed loop electric spray control system that is arranged on the lambda sensor formation of close relief opening on the baffler, be arranged on the three-way catalytic converter in the baffler, fuel path system and failure self-diagnosis system.

2, a kind of pedal motorcycle electronic fuel injection engine according to claim 1, it is characterized in that: described M3A module is made up of ECU (Electrical Control Unit) ECU, closure, air inlet pressure sensor, intake air temperature sensor, throttle position sensor, the signal of throttle position sensor, air inlet pressure sensor, intake air temperature sensor, cylinder head temperature transducer, lambda sensor, trigger winding is transferred to ECU through after the processing of circuit, and the output terminal of ECU is connected with spark coil, oil pump, oil nozzle.