CN202578923U - Integrated motorcycle closed-loop electrospray control system - Google Patents
Integrated motorcycle closed-loop electrospray control system Download PDFInfo
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- CN202578923U CN202578923U CN 201220228633 CN201220228633U CN202578923U CN 202578923 U CN202578923 U CN 202578923U CN 201220228633 CN201220228633 CN 201220228633 CN 201220228633 U CN201220228633 U CN 201220228633U CN 202578923 U CN202578923 U CN 202578923U
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Abstract
The utility model provides an integrated motorcycle closed-loop electrospray control system which comprises an electrospray controller(i.e. a microprocessor), a circuit board integrating a gas inlet pressure sensor, an engine temperature sensor, a position sensor, an idle speed control valve with the microprocessor, and a housing matched with the circuit boar, wherein the circuit board is arranged in the housing, and is sealed by glue, so that the whole electrospray system has the functions of being dust-resistant, water-resistant, corrosion-resistant, shock-resistant and the like, has the advantages of being small in volume, simple in structure, high in reliability, good in production consistency and the like, is high in control precision, is suitable for a severe environment, and can nearly match with all striding type and pedal type four-stroke motorcycles from 50CC discharge capacity to 250CC discharge capacity.
Description
Technical field
The utility model relates to a kind of motorcycle electric spraying control system, relates in particular to a kind of integral type motorcycle closed loop electric spray control system.
Background technique
At present, most motorcycles all adopt Carburetor control fuel system, and adopt the Carburetor fuel system to have following problem: oil consumption is high, differential force, and cold starting is difficult, poor to environmental suitability, oil consumption is big, and the discharging difficulty reaches national requirements.Along with the growing interest of the whole world to environment, the popularization of motorcycle with electronic fuel injection system becomes inevitable trend.The formal employing open loop electric jet technology that existing motorcycle with electronic fuel injection system has, what have arranges that for distributed structure promptly various sensors, throttle body, electronic control unit etc. are separately arranged.This arrangement has caused between each parts of electric injection system to connect through wire harness, causes that easily contact is bad, instability, problems such as unstable idle speed and poor anti jamming capability.Adopting electron controls technology is that petrol engine improves power character, reduces oil consumption, improves the important channel of discharging and increasing Security.Along with the increasingly stringent of Abgasgesetz, motorcycle electric controlization has become a kind of inevitable trend.
The model utility content
The purpose of the utility model is to provide a kind of integral type motorcycle closed loop electric spray control system, to solve problems such as open loop control that existing technology exists and structural configuration dispersion.
To achieve these goals, the utility model provides a kind of integral type motorcycle closed loop electric spray control system, and it comprises: air inlet pressure sensor is used to detect suction pressure; Intake air temperature sensor is used to detect the temperature that gets into engine air; TPS is used to detect the position of closure; Speed probe is used for the rotating speed and the crank position of detection of engine; Topple over sensor, be used to detect the three-dimensional position of motorcycle; Lambda sensor is used for the concentration of the exhaust oxygen of detection of engine; Engine temperature sensing unit is used for the center housing temperature of detection of engine; Signal processing circuit with said air inlet pressure sensor, intake air temperature sensor, TPS, speed probe, topple over sensor, lambda sensor and engine temperature sensing unit and be connected, is used for converting sensed signals; Microcontroller is connected with said signal processing circuit, be used for the processing and detecting signal and send control command to actuator, and said microcontroller comprises the storage that is used to store control strategy and best test data at least; Drive integrated chip, be connected, be used to drive a plurality of actuators of motorcycle with said microcontroller; Ignition drive circuit is connected with said driving integrated chip, is used for igniting and drives; The idling bypass control valve (BCV) is connected with said driving integrated chip, is used for PWM and regulates the air by-pass amount to stablize the idling of motor; The diagnosis communication circuit is connected between the CAN bus of said microcontroller and motorcycle, is used to carry out information interaction; Wherein, said microcontroller also is used for after receiving an ignition switch signal, and said microcontroller is exported the oil pump timing power supply of a control signal to motorcycle actuator, and pump is oily continuously within a certain period of time to make oil pump; Follow said microcontroller and read said information of toppling over sensor, air inlet pressure sensor, engine temperature sensing unit, TPS, intake air temperature sensor; And after receiving a starting signal; Said microcontroller judges that motorcycle is in starting state, sends oil spout and igniting drive instruction, through said driving integrated chip and ignition drive circuit; Drive the oil nozzle oil spout and the ignition system work of motorcycle, accomplish the starting of motorcycle engine; Said microcontroller also is used for after the starting of motorcycle engine, reading the best test data of said storage, more said signal processing circuit and said best test data, and the result that makes a determination also sends command signal; Wherein, the oxygen concentration of the exhaust that said microcontroller is used for detecting according to said lambda sensor, thereby in time adjust fuel injection quantity make mixed gas air fuel ratio remain near the narrow range the chemically correct fuel, realize the motorcycle electric spraying closed loop control whereby.
A kind of preferred implementation according to above-mentioned integral type motorcycle closed loop electric spray control system; Wherein, Also comprise housing; Said air inlet pressure sensor, intake air temperature sensor, TPS, signal processing circuit, microcontroller, driving integrated chip and diagnosis communication circuit are integrated on the same circuit board; Said circuit board is located in the said housing, said housing is provided with the suction pressure passage that is used to make said air inlet pressure sensor perception suction tude suction pressure, be used to make said idling bypass control valve (BCV) with the extraneous idle valve passage that is connected, be used to make the said microcontroller and the external world to communicate the microcontroller interface that is connected, said TPS.
To sum up, the utility model is the very high intelligent engine management system of a kind of integrated degree, has comprised microcontroller and a plurality of sensor with control strategy; And further designed a plurality of sensors and microcontroller have been integrated on the same circuit board; And designed a housing that matches with this circuit board, and circuit board is installed in the housing, seal with glue; Make whole electric injection system have dustproof, waterproof, anticorrosion, shockproof, volume is little, simple in structure, advantage such as reliability is high, conformity of production is good; Control accuracy is high, can adapt to rugged environment, almost can mate all striding type, pedal-type 4 stroke motorcycles from 50CC to the 250CC discharge capacity.
Description of drawings
Fig. 1 is the electrical block diagram of the utility model preferred embodiment;
Fig. 2 is the shell construction schematic representation of the utility model preferred embodiment;
Fig. 3 is the control flow schematic representation of the utility model preferred embodiment.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is explained further details.
Fig. 1, Fig. 2 and Fig. 3 show circuit structure, housing surface structure and the control flow of the utility model preferred embodiment respectively; As shown in the figure; This preferred embodiment comprises electronic control unit (ECU) 1 and housing 8, and electronic control unit 1 is located in the housing 8, and encapsulates with silica gel.Electronic control unit 1 comprises a plurality of components that are integrated on the same circuit board; Specifically comprise power circuit 11, signal processing circuit 12, microcontroller (MCU) 13, drive integrated chip 14, ignition drive circuit 15, idling bypass control valve (BCV) 16, diagnosis communication circuit 17, air inlet pressure sensor 181, TPS 182, intake air temperature sensor 183; Wherein, Power circuit 11 receives the control of reference supply 31 and key operation 32; Not only be used for each the active element power supply on this circuit board, also to other probe power 33 power supplies.Signal processing circuit 12 comprises pulse signal processing circuit 121, analog signal processing circuit 122.In addition, outside this circuit board, the utility model preferred embodiment also comprises a plurality of sensors, like speed probe 41, lambda sensor 42, engine temperature sensing unit 43, topple over sensor 44.This circuit board also is connected with data transmission link with a plurality of actuators, for example oxygen sensor heater 71, oil pump 72, oil nozzle 73, ignition mechanism 6 and CAN bus 5.
In above-mentioned each sensor, air inlet pressure sensor 181 is used to detect suction pressure.Intake air temperature sensor 183 is used to detect the temperature that gets into engine air.TPS 182 is used to detect the position of closure.Speed probe 41 is used for the rotating speed and the crank position of detection of engine.Topple over sensor 44 and be used to detect the three-dimensional position of motorcycle.Lambda sensor 42 is used for the concentration of the exhaust oxygen of detection of engine.Engine temperature sensing unit 43 is used for the temperature transducer of detection of engine, and its optimum position is located at cylinder head.Signal processing circuit 12 is used for converting sensed signals.As for other electronic units, microcontroller 13 is mainly used in the processing and detecting signal and sends control command to actuator, and comprises the storage (not shown) that is used to store best test data at least.Drive a plurality of actuators that integrated chip 14 is used to drive motorcycle.Ignition drive circuit 15 is used for igniting and drives.Idling bypass control valve (BCV) 16 is used for PWM and regulates the air by-pass amount to stablize the idling of motor.Diagnosis communication circuit 17 is used to carry out information interaction.
Among Fig. 1; The effect of electronic control unit 1 is according to the data-handling capacity of self the various information of each sensor of motor input to be carried out computing, processing, judgement, output order then; Control relevant final controlling element action, reach purpose quick, accurate, automatically controlled engine work.Diagnosis communication circuit 17, all that comprise the CAN bus are exported into signal, all are connected on the contact pin of ECU interface 81 in the housing 8.Electronic control unit 1 is installed in the supporting housing 8; Encapsulate with glue; The contact pin of the ECU interface 81 through housing 8; Receive outside various parts, for example lambda sensor, speed probe, engine temperature sensing unit, topple over sensor, oil pump, oil nozzle etc., thereby form a complete motorcycle closed loop electric spray control system.
Fig. 3 is the flow chart of the control strategy of microcontroller 13.Control procedure step S100 begin and step S101 initialization after, microcontroller 13 receives the data of each sensors input; Microcontroller 13 will transform the storage area that good data are put into its storage; Through preset control command, microcontroller arrives its arithmetic mean unit with the data delivery in the storage; Arithmetic mean unit is realized computing function, and result of calculation also can be sent to storage again; Controller is transferred the pin output port again with the data in the storage, sends instruction to executive component.Concrete with reference to shown in Figure 3; Wherein step S102, step S104, step S108, step S110, step S113, step S115 are determining step, and microcontroller 13 is judged according to corresponding sensing data, after the judgement; According to different results; Get into step S103, step S105, step S109, step S111, step S114, step S116 and step S117 respectively, especially after execution in step S117, return step S102, accomplish a work cycle.
Describing more specifically is that the working procedure of motorcycle engine is divided into starting process and driving process.
In the motorcycle starting process; The motorcycle prestart all is the ignition switch (key operation 32) of will closing; Power circuit 11 work, it sends the pin that a high level signal leads to microcontroller 13, after microcontroller 13 is received signal; Can export a high level immediately to oil pump 72 timing power supplies at an output pin; Let oil pump 72 pump oil continuously in (for example 20S) within a certain period of time, then read the information of toppling over sensor 44, air inlet pressure sensor 181, read information in engine temperature sensing unit 43, TPS 182, the intake air temperature sensor 183 then.The information that each sensor has been arranged; Press the switch starter on the motorcycle handle this moment; Microcontroller 13 determines motorcycle according to each sensor states and is in starting state, sends oil spout and igniting drive instruction, through driving integrated chip 14 and ignition drive circuit 15; Drive oil nozzle 73 and ignition mechanism 6 work, accomplish starting.
In motorcycle driving process, when engine operation, the user rotates oil door handle, and rotating vane is opened size and can be changed in the closure, is received and signal is passed to microcontroller 13 by TPS 182.Idle valve passage 83 on the housing 8 all can be opened with suction pressure passage 84 simultaneously, and through respective sensor signal is passed to microcontroller 13.
After the load signal (analogue signal) that engine speed that TPS 182 detects and angular signal (pulse signal), air inlet pressure sensor 181 detect and the temperature signal (analogue signal) of intake air temperature sensor 183 (being also referred to as intake air temperature sensor) detection etc. are imported electronic control unit 1, at first carry out signal processing through analog signal processing circuit 122.If digital signal, just according to the arrangement of microcontroller 13 after diagnosing communicating circuit 17 directly get into microcontroller 13.Most of information temporarily are stored in the ROM (read-only memory) of microcontroller 13, according to control command again from wherein importing microcontroller 13.
Then, the best test data that is stored in advance among the ROM is introduced microcontroller 13, the information that sensor is imported compares with it.The microcontroller 13 various information of autobiography sensor is in the future taken a sample successively, carries out logical operation with best test data, through relatively making a determination result and send command signal, through interface circuit, the action of output loop control final controlling element.For example,, draw the best fuel injection pulse and the optimum igniting moment that offer oil nozzle 73, accomplish control oil spout function if the oil sprayer drive signal is just controlled the oil sprayer electromagnetic coil energising moment and lasting current"on"time; If the igniter drive signal with regard to the conducting of control ignition coil controller constantly, is accomplished the control ignition function.If final controlling element needs the linear current amount to drive, microcontroller 13 is just controlled duty and is recently controlled the output loop conducting and end, and makes that the average current that flows through the final controlling element electromagnetic coil is linear to be increased or reduce.The aperture that drives idling bypass control valve (BCV) 16 modulating valve is simultaneously come stable idle.
During engine operation, microcontroller 13 motion speed are quite fast, for example fuel injection quantity, time of ignition control, each second can revise up to a hundred times, so control accuracy are very high.
In engine working process, the oxygen concentration in the lambda sensor 42 detection at any time exhausts, and at any time to microcontroller 13 feedback signals of electronic control unit 1.1 signal that comes according to feedback of electronic control unit is in time adjusted fuel injection quantity, and is denseer like signal reflection mixed gas, then reduces injection time; Otherwise, rarer like the signal reflection, then prolong injection time and strengthen oil mass.Thereby make mixed gas air fuel ratio remain near the narrow range the chemically correct fuel, the utility model preferred embodiment is realized the motorcycle electric spraying closed loop control whereby, solving present motorcycle with electronic fuel injection system is the problem of open loop control mostly.
To sum up; The case design that the utility model provides a kind of integral type motorcycle closed loop electric spray control system and matches; The control strategy of its microcontroller mainly comprises function module design such as design of first floor system software structure design, primary control program and oil spout control module and resource allocation etc., and every work cycle air inflow accurate Calculation strategy, starting and warming-up operating mode oil spout control strategy, sub load air fuel ratio closed loop control strategy, full load power enriching control strategy, instantaneous conditions compensation policy, self study correction strategy and safety protection pattern and expiration policy etc.
Another characteristics of the utility model are the hardware circuit design of ECU; Advanced electronic technology has been merged in this design, and the idling bypass control valve (BCV) that microcontroller, air inlet pressure sensor, intake air temperature sensor, contactless TPS and PWM are regulated is integrated on the ECU circuit board.Microcontroller can adopt the in addition intelligent power output stage control of high performance 16 8-digit microcontrollers, microcontroller peripheral chip large-scale integration technology and the high-precision signal processing circuit of high anti-noise, and diagnosis is connected through the CAN bus with communication.Make new E CU have that control accuracy height, reliability are high, level of integration is high, reliability is high, can adapt to characteristics such as rugged environment and price are low.
The 3rd characteristics of the utility model have designed and the supporting housing of ECU circuit.Circuit board is installed on the housing, and encapsulates with glue.Have dustproof, waterproof, anticorrosion, shockproof function, volume is little, characteristic of simple structure.
It is thus clear that the utlity model has following beneficial effect: cold cranking capacity is good, cold car is prone to start.Fuel consumption is lower, than the fuel-efficient 5-15% that reaches of Carburetor.Good with the nozzle substituted Carburetor oil gas atomizing of electromagnetism, accurately oil spout.Integrated pressure sensor is fit to different altitude height areas.Accelerated reaction is sensitive, and power output is smooth and easy.Mixture combustion is more complete, and exhaust emission pollution is less, and is easily up to standard, has to higher rules upgrading potentiality.Idling is stable, and engine is difficult for flame-out.Safety significantly promotes, and is equipped with and topples over sensor, the automatic shutting engine down auto extinguishing of oil supply system when car is toppled over.
Can know that by technological general knowledge the utility model can be realized through other the embodiment that does not break away from its spirit or essential feature.Therefore, above-mentioned disclosed embodiment with regard to each side, all just illustrates, and is not only.All in the utility model scope or the change that is being equal in the scope of the utility model all comprised by the utility model.
Claims (2)
1. an integral type motorcycle closed loop electric spray control system is characterized in that, comprising:
Air inlet pressure sensor is used to detect suction pressure;
Intake air temperature sensor is used to detect the temperature that gets into engine air;
TPS is used to detect the position of closure;
Speed probe is used for the rotating speed and the crank position of detection of engine;
Topple over sensor, be used to detect the three-dimensional position of motorcycle;
Lambda sensor is used for the concentration of the exhaust oxygen of detection of engine;
Engine temperature sensing unit is used for the center housing temperature of detection of engine;
Signal processing circuit with said air inlet pressure sensor, intake air temperature sensor, TPS, speed probe, topple over sensor, lambda sensor and engine temperature sensing unit and be connected, is used for converting sensed signals;
Microcontroller is connected with said signal processing circuit, be used for the processing and detecting signal and send control command to actuator, and said microcontroller comprises the storage that is used to store control strategy and best test data at least;
Drive integrated chip, be connected, be used to drive a plurality of actuators of motorcycle with said microcontroller;
Ignition drive circuit is connected with said driving integrated chip, is used for the drive ignition device;
The idling bypass control valve (BCV) is connected with said driving integrated chip, is used for PWM and regulates the air by-pass amount to stablize the idling of motor;
The diagnosis communication circuit is connected between the CAN bus of said microcontroller and motorcycle, is used to carry out information interaction;
Wherein, said microcontroller specifically is used for after receiving an ignition switch signal, and said microcontroller is exported the oil pump timing power supply of a control signal to motorcycle actuator, and pump is oily continuously within a certain period of time to make oil pump; Follow said microcontroller and read said information of toppling over sensor, air inlet pressure sensor, engine temperature sensing unit, TPS, intake air temperature sensor; And after receiving a starting signal; Said microcontroller judges that motorcycle is in starting state, sends oil spout and igniting drive instruction, through said driving integrated chip and ignition drive circuit; Drive the oil nozzle oil spout and the ignition mechanism work of motorcycle, accomplish the starting of motorcycle engine;
Said microcontroller also is used for after the starting of motorcycle engine, reading the best test data of said storage, more said signal processing circuit and said best test data, and the result that makes a determination also sends command signal; Wherein, the oxygen concentration of the exhaust that said microcontroller is used for detecting according to said lambda sensor, thereby in time adjust fuel injection quantity make mixed gas air fuel ratio remain near the narrow range the chemically correct fuel, realize the motorcycle electric spraying closed loop control whereby.
2. integral type motorcycle closed loop electric spray control system according to claim 1; It is characterized in that; Also comprise housing; Said air inlet pressure sensor, intake air temperature sensor, TPS, signal processing circuit, microcontroller, driving integrated chip and diagnosis communication circuit are integrated on the same circuit board; Said circuit board is located in the said housing, said housing is provided with the suction pressure passage that is used to make said air inlet pressure sensor perception suction tude suction pressure, be used to make said idling bypass control valve (BCV) with the extraneous idle valve passage that is connected, be used to make the said microcontroller and the external world to communicate the microcontroller interface that is connected, said TPS.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220228633 CN202578923U (en) | 2012-05-21 | 2012-05-21 | Integrated motorcycle closed-loop electrospray control system |
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| CN 201220228633 CN202578923U (en) | 2012-05-21 | 2012-05-21 | Integrated motorcycle closed-loop electrospray control system |
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| CN202578923U true CN202578923U (en) | 2012-12-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678356A (en) * | 2012-05-21 | 2012-09-19 | 王六闰 | Integrated motorcycle closed-loop electronic injection control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678356A (en) * | 2012-05-21 | 2012-09-19 | 王六闰 | Integrated motorcycle closed-loop electronic injection control system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20160521 |
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| CF01 | Termination of patent right due to non-payment of annual fee |