CN202209218U - General internal combustion dynamical system realizing lean combustion - Google Patents
General internal combustion dynamical system realizing lean combustion Download PDFInfo
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- CN202209218U CN202209218U CN2011202725144U CN201120272514U CN202209218U CN 202209218 U CN202209218 U CN 202209218U CN 2011202725144 U CN2011202725144 U CN 2011202725144U CN 201120272514 U CN201120272514 U CN 201120272514U CN 202209218 U CN202209218 U CN 202209218U
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Abstract
The utility model discloses a general internal combustion dynamical system realizing lean combustion, comprising an internal combustion engine, a lean boosting system used for creating desired conditions for the internal combustion engine to realize lean combustion, an engine computer, and an optimized electronic control module used for changing control command of the engine computer to the internal combustion engine in order to achieve optimized control to realize the lean combustion of the internal combustion engine. The utility model realizes the lean combustion in the condition of unchanged general internal combustion engine structure. The lean boosting system of the utility model is able to creat conditions for the implementation of the lean combustion of the general internal combustion engine, and improve the performance of the dynamical system while saving energy; besides, adopting the lean boosting system and the optimized electronic control module, the utility model directly or indirectly intervenes the instructions sent by the engine computer, and allows the internal combustion engine to work in a state of lean combustion, thereby achieving same lean combustion effect as a lean combustion engine conveniently and with low cost on the basis of the general internal combustion engine structure.
Description
Technical field
The utility model relates to a kind of explosive motor energy-saving and emission-reduction system, particularly relates to a kind of common combustion power system that under the condition that does not change engine structure, realizes lean combustion.
Background technique
Along with the fossil fuel that reserves are limited is day by day exhausted, the mankind are being faced with the challenge of oil crisis.In daily life, people increase the dependence of fuel oil day by day and oil price constantly rises violently, also have simultaneously the thing followed and fuel consume increase and the air pollution problems inherent of depositing.In this case, the Consumer urgently thirsts for reducing the fuel spending, and government urgently hopes energy-conservation and solves environmental issue.For adapting to this society need, panoramic energy-saving and emission-reduction product arises at the historic moment.It is single that opinion just has numerous energy-saving and emission-reduction product and model utility to occur in succession with the automotive energy-saving emission-reducing product.But; Up to now; The automotive energy-saving emission-reducing product of these listings, no matter be the fuel magnetic, the gas compensating type that still burns, strengthen igniting type, improve fuel combustion character formula, burning-assist, mechanical property improvement and mechanical property are recovered formula or the like; Fuel-economizing and reduction of discharging effect all do not have really to satisfy client's requirement, and effect is unclear.Trace it to its cause, mainly contain following some: mostly (1) is to utilize single effect, acts on limited; (2) the own effect of effect of being utilized or principle is just limited; (3) do not realize good fuel feeding burning optimization control in fact even some product has also been taked certain energy-conservation or effective utilization measure, perhaps have and want that improving electronic control through additional computer reaches the fuel-economizing purpose does not but promote power system with addition of the good energy-conservation enhancing device performance.
In view of this present situation, go deep into research and development and improve correlation technique efficiently, be undoubtedly current a kind of of energy crisis situation of facing and press for.
Be understood that; Reaching the best scheme of oil-saving discharging-reducing purpose is exactly to realize lean combustion as much as possible; This respect comparative maturity be exactly the lean-combustion engine technology; The lean-combustion engine technology can realize the ultra lean combustion of air fuel ratio up to 65:1 now in the world through in recent years development.But this lean-combustion engine is the engine structure through particular design; With a large amount of common engine structures that exist are different at present, how to realize efficiently under the situation that does not change the common engine internal structure that lean combustion even ultra lean combustion are the technical problems of needing solution badly.
The model utility content
The purpose of the utility model provides the common combustion power system that realizes lean combustion under a kind of situation that does not change the conventional internal combustion engines structure.
For realizing above-mentioned purpose; The utility model provides a kind of common combustion power system that realizes lean combustion; This combustion power system comprises explosive motor, and explosive motor has at least one admission line, at least one exhaust duct; At least one cylinder, and cylinder links to each other with fuel supply device through fuel channel; The combustion power energy saving of system of the utility model reduces discharging mechanism and also comprises with explosive motor the engine computer that links to each other, is used to control said explosive motor operation; Link to each other, be used to said explosive motor with said explosive motor and create the lean-burn assist system that it realizes the required condition of lean combustion; Comprise with said engine computer link to each other, be used to change engine computer to the control command of explosive motor so that the combustion power system effectively implements the optimization electronic control module of lean combustion in the performance back that gets a promotion installing said lean-burn assist system additional; And being installed in the combustion power system information sensor and at least one inlet sensor in the said combustion power system, said combustion power system information sensor and inlet sensor are given one of said engine computer and said optimization electronic control module or its with detected information transmission.
The utility model makes conventional internal combustion engines under the situation that does not change structure, successfully realize lean combustion or even ultra lean combustion.The lean-burn assist system that it adopts can effectively improve the ability matter ratio of comburant; Reduce comburant burning-point in the cylinder, improve the flammability of fuel, improve combustion propagation speed; Improve fuel economy; And improve fuel performance, and implement lean combustion for conventional internal combustion engines and create conditions, in energy saving, can promote the performance of power system greatly.The optimization electronic control module that it adopts can influence the operation of engine computer, make the combustion power system under the situation that installs the lean-burn assist system additional, realize optimization control and proper functioning at the lean-burn state.
Optimizing electronic control module links to each other with engine computer with said combustion power system information sensor, inlet sensor; Said optimization electronic control module receives the signal of said combustion power system information sensor, inlet sensor and judges the operation conditions of motor according to this; The fuel jeting instruction that the said engine computer of intercepting simultaneously sends; Real time execution situation according to explosive motor is intervened the fuel jeting instruction that engine computer sends, and makes said explosive motor under the situation of lean-burn assist system effect, be operated in the lean-burn state.
Said optimization electronic control module links to each other with engine computer with said combustion power system information sensor, inlet sensor; Said optimization electronic control module receives the signal of said combustion power system information sensor, inlet sensor and judges the operation conditions of motor according to this; The fuel jeting instruction that the said engine computer of intercepting simultaneously sends; Real time execution situation according to explosive motor is intervened the fuel jeting instruction that engine computer sends; Also the said combustion power system information sensor and the information of inlet sensor are carried out handled simultaneously, to optimize the running of engine computer.
Optimizing electronic control module links to each other with engine computer with said combustion power system information sensor, inlet sensor; The instruction that said optimization electronic control module can the said engine computer of not direct intervention be sent; But the said combustion power system information sensor and the signal of inlet sensor are given being transferred to said engine computer again after the handled; Thereby change the instruction of said engine computer, make said explosive motor under the situation of lean-burn assist system effect, be operated in the lean-burn state.
The lean-burn assist system is that said explosive motor is created under the lean combustion condition, and said optimization electronic control module is an engine computer that makes explosive motor carry out lean combustion.
Optimizing electronic control module can be the part of engine computer; Said engine computer is controlled the fuel injection quantity and the operation of explosive motor; At said lean-burn assist system is that said explosive motor is created under the situation of lean combustion condition, makes explosive motor be operated in the lean-burn state.
The inlet sensor is one of intake flow sensor, admission line absolute pressure transducer, TPS or their combination in any; Said intake flow sensor is positioned on the said admission line; Be used to survey the charge air flow state of said admission line and the size of charge flow rate; Said admission line absolute pressure transducer is positioned on the said explosive motor admission line; Be used to survey the pressure state of said admission line, said TPS is positioned on the said closure, is used to survey the size at said throttle opening angle.
Combustion power system information sensor is ECTS, engine rotation speed sensor, engine load sensor, vehicle speed sensor, intake air temperature sensor, accelerator pedal sensor and is installed in one of lambda sensor on the internal combustion engine exhaust gas pipeline or their combination in any.
One of the admission line of lean-burn assist system and said explosive motor and the fuel channel of said explosive motor or its link to each other; Be to promote said internal-combustion engine mechanomotive force; Reduce the comburant burning-point; Accelerate combustion propagation speed, thereby improving that fuel materialization structure and composition improve fuel economy or improve fuel combustion can the matter ratio, help to realize the combination of the device or the device of lean combustion.
The lean-burn assist system is the brown gases generator, and said brown gases generator links to each other with the admission line of said explosive motor.
The lean-burn assist system is the combination of brown gases generator and fuel plasma reformer, and said brown gases generator links to each other with the admission line of said explosive motor, and said fuel plasma reformer links to each other with the fuel channel of said explosive motor.
Optimize the work and the control that stops to receive the explosive motor ignition switch of electronic control module, connect when ignition switch, when explosive motor was started working, said optimization electronic control module was started working; Turn-off when ignition switch, when explosive motor quit work, said optimization electronic control module quit work.
Optimize electronic control module and be provided with power-off protecting circuit, when said optimization electronic control module lost power supply, the combustion power system worked under the independent control of engine computer.
The beneficial effect that the utlity model has:
The utility model makes conventional internal combustion engines under the situation that does not change structure, successfully realize lean combustion or even ultra lean combustion.What the lean-burn assist system that it adopts can effectively improve comburant can be worth ratio, reduces comburant burning-point in the cylinder, improves the flammability of fuel; Improve combustion propagation speed; Improve fuel economy, and improve fuel performance, implement lean combustion for conventional internal combustion engines and create conditions; Simultaneously; The utility model is optimized electronic control module through adopting; Control engine computer operation directly or indirectly, the instruction of rationally intervening engine computer and being sent makes explosive motor be operated in the lean-burn state; This makes things convenient on the basis of ordinary internal combustion engine structure and reaches the lean-burn effect same with lean-burn engine systems at low cost, in energy saving, can promote the performance of power system greatly.
Description of drawings
Fig. 1 is a kind of structural representation of preferred implementation of common combustion power system of the realization lean combustion of the utility model;
Fig. 2 is the structural representation of another kind of preferred implementation of the combustion power system of the utility model;
Fig. 3 is first embodiment's the schematic representation of the combustion power system of the utility model;
Fig. 4 is second embodiment's the schematic representation of the combustion power system of the utility model;
Fig. 5 is the 3rd embodiment's the schematic representation of the combustion power system of the utility model;
Fig. 6 is the schematic block diagram of the optimization electronic control module system of the utility model;
Fig. 7 is the optimization electronic control module workflow diagram of the utility model;
Fig. 8 is the processing exemplary plot that the optimization electronic control module of the utility model closes about input oxygen sensor signal and output signal.
Reference character:
10 lean-burn assist systems; 11 cylinders; 12 fuel tanks; 13 air-strainer;
14 engine computers; 15 optimize electronic control module; 16 admission lines; 17 exhaust ducts;
18 closures; 21 lambda sensors; 22 intake flow sensors;
23 TPSs; 24 intake air temperature sensor.
Embodiment
For the purpose that makes the utility model, technological scheme, and advantage clearer, below with reference to accompanying drawing to the utility model further explain.
Fig. 1, Fig. 2 are the structural representations of the combustion power system of the utility model; Visible from figure, the utility model combustion power energy saving of system reduction of discharging mechanism comprises explosive motor and engine computer, and this explosive motor is present existing conventional internal combustion engines; Can for but be not limited to the explosive motor that on fixed equipment and mobile device, uses; It has at least one admission line, at least one exhaust duct, at least one cylinder.Engine computer links to each other, is used to control said explosive motor operation with explosive motor.The combustion power energy saving of system of the utility model reduces discharging mechanism and comprises that also linking to each other, be used to said explosive motor with explosive motor creates the lean-burn assist system that it realizes the required condition of lean combustion, and link to each other with engine computer, be used to change engine computer to the control command of explosive motor so that explosive motor is effectively implemented the optimization electronic control module of lean combustion.Combustion power system information sensor is installed on internal combustion engine system; The dynamic Information of combustion power system information sensor explosive motor also is transferred to said engine computer separately with dynamic Information, perhaps is transferred to the optimization electronic control module separately; Perhaps be transferred to engine computer and optimize electronic control module.At least one inlet sensor is installed on explosive motor; This inlet sensor can be positioned on the admission line; Detect the charge flow rate information or the pressure information of admission line; And information is transferred to said engine computer separately, and perhaps be transferred to the optimization electronic control module separately, perhaps be transferred to engine computer and optimize electronic control module.This inlet sensor can be positioned on the closure, detects the size at throttle opening angle and signal is transferred to said engine computer separately, perhaps is transferred to the optimization electronic control module separately, perhaps is transferred to engine computer and optimizes electronic control module.
In Fig. 1; Optimizing electronic control module links to each other with engine computer with combustion power system information sensor, inlet sensor; Optimize the operation conditions that electronic control module receives the signal of combustion power system information sensor, inlet sensor and judges motor according to this; The fuel jeting instruction that the engine computer of intercepting simultaneously sends; Real time execution situation according to explosive motor is intervened the fuel jeting instruction that engine computer sends, and makes explosive motor under the situation of lean-burn assist system effect, be operated in the lean-burn state.
In a kind of preferred implementation of the utility model; Optimizing electronic control module links to each other with engine computer with combustion power system information sensor, inlet sensor; Optimize the operation conditions that electronic control module receives the signal of combustion power system information sensor, inlet sensor and judges motor according to this; The fuel jeting instruction that the engine computer of intercepting simultaneously sends; Real time execution situation according to explosive motor is intervened the fuel jeting instruction that engine computer sends, and also the internal combustion power system information sensor and the information of inlet sensor is carried out handled simultaneously, to optimize the running of engine computer.
In Fig. 2; Optimizing electronic control module links to each other with engine computer with combustion power system information sensor, inlet sensor; The instruction that this not direct intervention of optimization electronic control module engine computer is sent; But the combustion power system information sensor and the signal of inlet sensor are given being transferred to said engine computer again after the handled, thereby the instruction of change engine computer makes explosive motor under the situation of lean-burn assist system effect, be operated in the lean-burn state.
Fig. 3 is the schematic representation that the combustion power energy saving of system of the utility model reduces discharging first embodiment of mechanism; Visible from figure, in this internal combustion engine system, admission line 16 will be transported to cylinder 11 inside through the air of air-strainer 13 filterings; Under the intervention of optimizing electronic control module 15; What be transmitted into fuel injection mechanism is the fuel jeting instruction that satisfies lean combustion through revising, and fuel injection mechanism is ejected into cylinder 11 inside, the plug ignition of cylinder 11 with the fuel of fuel jeting instruction established amount; Fuel carries out lean combustion in cylinder, the tail gas after the burning is discharged through exhaust duct 17.In this internal combustion engine system; Fuel realizes that one of key technology point of lean combustion is to have adopted lean-burn assist system 10; This lean-burn assist system 10 is to promote the internal-combustion engine mechanomotive force, reduces the comburant burning-point, accelerates combustion propagation speed; Improve fuel economy or improve fuel combustion ability matter ratio thereby improve fuel materialization structure and composition, help explosive motor to realize the device of lean combustion or the combination of device.It can link to each other with the admission line of explosive motor, can link to each other with the fuel channel of explosive motor, also can all link to each other with the admission line of explosive motor and the fuel channel of explosive motor.In this mode of execution, the lean-burn assist system is the brown gases generator, and it links to each other with the admission line of explosive motor, and this brown gases generator mixes with fuel the gas that produces in cylinder, make fuel can realize lean combustion.In this mode of execution; The inlet sensor of installing on this internal combustion engine system comprises intake flow sensor 22 and TPS 23; In other mode of execution, the inlet sensor can be any one of intake flow sensor 22, admission line absolute pressure transducer (not shown) and TPS 23 or their combination in any.The combustion power system information sensor of installing on this internal combustion engine system is any sensor that can detect the combustion power system information, can for but be not limited to ECTS, engine rotation speed sensor, engine load sensor, vehicle speed sensor, intake air temperature sensor, accelerator pedal sensor and be positioned at one of lambda sensor on the engine exhaust pipeline or their combination in any.In this mode of execution, combustion power system information sensor is lambda sensor 21 and engine rotation speed sensor (not shown).
Lambda sensor 21 is positioned on the internal combustion engine exhaust gas pipeline 17, and this lambda sensor 21 detects the oxygen content in exhaust ducts and the oxygen content information transmission given optimize electronic control module 15.Intake flow sensor 22 be positioned at admission line 16 on; Be used to survey the charge air flow state of admission line 16 and the size of charge flow rate; And the charge flow rate size is converted into corresponding analog or digital signal, and be under the situation of voltage signal at this signal, this signal voltage is high when charge flow rate is big; When charge flow rate hour this signal voltage is low, this voltage signal is transferred to engine computer 14 and optimizes electronic control module 15.On 23 closures of TPS, survey the size at throttle opening angle, and the size information at throttle opening angle is transferred to engine computer 14 and optimizes electronic control module 15.
Optimize the operation conditions that electronic control module 15 receives the signal and the engine speed information of lambda sensor 21, intake flow sensor 22 and TPS 23 and judges motor according to this; The fuel jeting instruction that the engine computer of intercepting simultaneously 14 sends; This optimization electronic control module 15 judges automatically that according to these sensor informations engine load and instant operating mode are to confirm appropriate fuel jeting instruction reduction value; Immediately fuel injection mechanism is issued in revised instruction, the actual lean combustion of implementing.
The size of fuel jeting instruction reduction value is also confirmed by optimizing electronic control module with reference to concrete real-time working condition according to combustion power system new capability after installing the lean-burn assist device additional by optimizing electronic control module 15 in real time; For example; Maybe need quicken to promote horse-power-hour in the explosive motor idling; The oil spout instruction reduction value of optimizing electronic control module 15 calculating is less; Explosive motor near at the uniform velocity, slow down or than low-load under during running, the fuel jeting instruction reduction value of optimizing electronic control module 15 calculating is bigger.When the fuel jeting instruction of optimizing 15 pairs of engine computers of electronic control module is revised; Optimize electronic control module 15 and also can receive the voltage signal that the lambda sensor 21 from the engine exhaust pipe 17 transmits simultaneously; Different according to the lambda sensor band gap width that uses, this voltage signal is a signal that depends on oxygen content size in the exhaust that constantly changes within the specific limits, can for but to be not limited to be the signal that depends on oxygen content size in the exhaust that constantly changes between the 0 ~ 1V; When this voltage signal is high; Oxygen content in the exhaust is low, and when this voltage signal hanged down, the oxygen content in the exhaust was high; This voltage signal raises through the processing of optimizing electronic control module 15 or generates the engine computer 14 that corresponding analog voltage signal is passed to again by this optimization electronic control module 15 according to design mathematical model in advance; This moment, engine computer 14 thought that the oxygen content of outlet pipe 17 tails off, thereby the logic judgement does not report an error when reducing fuel injection amount, keeps the normal operation of engine system.In this mode of execution; Lambda sensor 21 also can directly link to each other with engine computer 14; Its voltage signal uprises the voltage signal of lambda sensor 21, thereby makes engine computer 14 think that the oxygen content of outlet pipe 17 tails off in the way of engine computer 14 transmission, mixing with the intervention signal of optimizing electronic control module 15; The logic judgement does not report an error when reducing fuel injection amount, keeps the normal operation of engine system.
In second preferred embodiment of the utility model shown in Figure 4, to compare with first preferred embodiment shown in Figure 3, the lean-burn assist system that is adopted is the combination of brown gases generator and fuel plasma reformer.Fuel plasma reformer links to each other with the fuel channel of explosive motor, and fuel is spurted into cylinder through after the plasma treatment.The brown gases generator links to each other with the admission line of explosive motor; When the brown gases generator was worked, it was transported to cylinder interior with the gas that produces through admission line, and mixed in cylinder through the fuel after the plasma treatment; Thereby reduced the fuel burning-point; Accelerate combustion propagation speed, thereby improving that fuel materialization structure and composition improve fuel economy or improve fuel combustion can the matter ratio, make the explosive motor realization lean combustion that is able to have ready conditions.
In another preferred embodiment of the utility model shown in Figure 5; Optimize the fuel jeting instruction that electronic control module 15 not direct intervention engine computers 14 are sent; But pass to engine computer 14 again after the signal handled with the lambda sensor that receives 21, intake flow sensor 22; After engine computer 14 receives the sensor information after the processing, corresponding minimizing fuel injection amount, make explosive motor can proper functioning at the lean-burn state.In other mode of execution; Optimize electronic control module 15 and can pass to engine computer 14 again after the signal handled to the lambda sensor 21, admission line pressure transducer and the TPS 23 that receive; After engine computer 14 receives the sensor information after the processing; Corresponding minimizing fuel injection amount, make explosive motor can proper functioning at the lean-burn state.
Concrete control procedure is: intake flow sensor 22 is converted into electrical signal with charge flow rate information and is transferred to optimization electronic control module 15; This signal voltage is high when charge flow rate is big; When charge flow rate hour this signal voltage is low, in this mode of execution, can intake flow sensor 22 be replaced with the admission line pressure transducer; It sends the pressure information in the admission line 16 to optimizes electronic control module 15, this pressure signal reflection charge flow rate information.Lambda sensor 21 is converted into electrical signal with the oxygen content information on the engine exhaust pipe 17 and is transferred to optimization electronic control module 15, when this voltage signal is high, explains that the oxygen content in the exhaust is low, when this voltage signal hangs down, explains that the oxygen content in the exhaust is high.Optimizing electronic control module 15 decays the charge flow rate signal; Correspondingly be sent to engine computer 14 after the oxygen content signal enhancing with lambda sensor 21 simultaneously; Though make engine computer 14 when calculating fuel injection quantity, still be to use its original target air-fuel ratio but in fact rationally to reduce fuel injection amount, thereby make explosive motor realize lean combustion.The lean-burn assist system that in this mode of execution, adopts is the combination of brown gases generator and fuel plasma reformer, and fuel plasma reformer links to each other with the fuel channel of explosive motor, and fuel is spurted into cylinder through after the plasma treatment.The brown gases generator links to each other with the admission line of explosive motor; It is transported to cylinder interior with the gas that produces through admission line; Mix in cylinder with the fuel after the process plasma treatment, thereby reduced the fuel burning-point, accelerate combustion propagation speed; Thereby improving fuel materialization structure and composition improves fuel economy or improves fuel combustion ability matter ratio; Make the explosive motor lean combustion that is achieved, in fuel-economizing, greatly reduce harmful matter such as carbon monoxide, hydrocarbon, nitrogen oxide and other content of harmful in the exhaust, make the combustion power system obtain original bigger power simultaneously.
In this mode of execution; Optimize the information that electronic control module 15 also can only change lambda sensor 21; Lambda sensor 21 is converted into electrical signal with the oxygen content information on the engine exhaust pipe 17 and is transferred to optimization electronic control module 15, when this voltage signal is high, explains that the oxygen content in the exhaust is low; When this voltage signal hangs down, explain that the oxygen content in the exhaust is high.Be sent to engine computer 14 after optimizing the oxygen content signal enhancing of electronic control module 15, make engine computer 14 reduce fuel injection amounts, thereby make explosive motor realize lean combustion lambda sensor 21.
In the mode of execution of the utility model; Can also be provided with intake air temperature sensor 24 on the admission line 16; As shown in Figure 5; Optimize electronic control module 15 and simultaneously the signal of intake air temperature sensor 24 and the signal of ECTS (not shown) are handled, and the sensor signal after will handling is transferred to engine computer, power performance is able to promote under the situation behind the lean-burn assist system installing additional; Make engine computer suitably reduce the motor fuel amount of enrichment, with further comprehensive adaptation power system new capability.
Shown in Figure 6 is the structured flowchart that the utility model is optimized electronic control module; In this mode of execution; Optimize electronic control module and comprise analog input circuit and digital input circuit, analog input circuit is used for the analogue signal of receiving sensor, and digital input circuit is used for the digital signal of receiving sensor and is transferred to CPU through the I/O interface; The analogue signal of analog input circuit is transferred to CPU through the I/O interface after the A/D change-over circuit converts digital signal to; CPU handles sensor signal, and the sensor signal after will handling is transferred to engine computer through I/O interface and output circuit, in this mode of execution; Optimize the instruction that not direct intervention of electronic control module engine computer is sent; But the sensor biography is given passing to engine computer again after the handled according to the runnability of explosive motor toward the signal of engine computer, make explosive motor be operated in the lean-burn state, the mode of operation in the mode of execution as shown in fig. 5.In other mode of execution; The fuel jeting instruction that engine computer sends is imported into the optimization electronic control module by intercepting; Optimize electronic control module and confirm appropriate fuel jeting instruction reduction value according to its received relevant timely information; Then revised instruction is issued fuel through output circuit and spray actuator, the actual lean combustion of implementing is like the mode of operation in Fig. 3, the mode of execution shown in 4.
Fig. 7 is a workflow diagram of optimizing electronic control module.Optimize the information that electronic control module detects respectively enter the mouth sensor and combustion power system information sensors such as engine speed and load; And comprehensive instant associated information calculation immediate targets function from engine computer; Needing the debugging control parameter or adopting under the prerequisite of control automatically; With passing after the sensor information handled toward engine computer, the mode of operation in the mode of execution as shown in fig. 5 perhaps passes in sensor information and in the way of engine computer, revises; The fuel jeting instruction that perhaps direct intercepting engine computer sends; And judge that according to sensor information engine load and instant operating mode are to confirm appropriate fuel jeting instruction reduction value; Fuel is issued in revised instruction sprayed actuator; The actual lean combustion of implementing is like the mode of operation in Fig. 3, the mode of execution shown in 4.
In a preferred implementation of the utility model, from optimizing the simulation charge flow rate signal voltage of electronic control module output
S Ac Charge flow rate signal voltage by the sensor input
And the relation between the information such as engine speed N is formulated as:
Wherein,
is the time rate of change of engine speed N,
for depending on the parameter of used lean-burn assist system usefulness height.
[0040]Fig. 8 optimizes electronic control module about input oxygen sensor signal and output signal relation exemplary plot at the utility model; Curve 1 is the relation curve of the analog output signal of the lambda sensor input signal of optimizing electronic control module in one embodiment and this optimizations electronic control module among the figure, and curve 2 is input signals and the relation curve of exporting signal of electronic control module among the another one embodiment among the figure.
The utility model makes conventional internal combustion engines under the situation that does not change structure, successfully realize lean combustion or even ultra lean combustion.The lean-burn assist system that it adopts can effectively improve the ability matter ratio of comburant, reduces comburant burning-point in the cylinder, improves the flammability of fuel; Improve combustion propagation speed; Improve fuel economy, and improve fuel performance, implement lean combustion for conventional internal combustion engines and create conditions; Simultaneously; The utility model is optimized electronic control module through adopting; Control the engine computer operation directly or indirectly; Intervene the instruction that engine computer sent, the effect that explosive motor is adapted to owing to the lean-burn assist system is operated in the lean-burn state, thereby reaches the good energy-conservation emission reduction effect and promote the performance of power system.
Certainly; The utility model also can have other various embodiments; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (11)
1. common combustion power system that realizes lean combustion; Said combustion power system comprises explosive motor, and said explosive motor has at least one admission line, at least one exhaust duct; At least one cylinder, said cylinder links to each other with fuel supply device through fuel channel;
Link to each other, be used to control the engine computer of said explosive motor operation with said explosive motor;
It is characterized in that: comprise that also linking to each other, be used to said explosive motor with said explosive motor creates the lean-burn assist system that it realizes the required condition of lean combustion;
Link to each other with said engine computer, be used to change engine computer to the control command of explosive motor so that explosive motor is realized the optimization electronic control module of lean combustion; And
Be installed in combustion power system information sensor and at least one inlet sensor in the said combustion power system, said combustion power system information sensor and inlet sensor are given one of said engine computer and said optimization electronic control module or its with detected information transmission.
2. the common combustion power system of realization lean combustion according to claim 1; It is characterized in that: said optimization electronic control module links to each other with engine computer with said combustion power system information sensor, inlet sensor; Said optimization electronic control module receives the signal of said combustion power system information sensor, inlet sensor and judges the operation conditions of motor according to this; The fuel jeting instruction that the said engine computer of intercepting simultaneously sends; Real time execution situation according to explosive motor is intervened the fuel jeting instruction that engine computer sends, and makes said explosive motor under the situation of lean-burn assist system effect, be operated in the lean-burn state.
3. the common combustion power system of realization lean combustion according to claim 2; It is characterized in that: said optimization electronic control module carries out handled to the said combustion power system information sensor and the information of inlet sensor, to optimize the running of engine computer.
4. the common combustion power system of realization lean combustion according to claim 1; It is characterized in that: said optimization electronic control module links to each other with engine computer with said combustion power system information sensor, inlet sensor; The instruction that the said engine computer of said not direct intervention of optimization electronic control module is sent; But the said combustion power system information sensor and the signal of inlet sensor are given being transferred to said engine computer again after the handled; Thereby change the instruction of said engine computer, make said explosive motor under the situation of lean-burn assist system effect, be operated in the lean-burn state.
5. the common combustion power system of realization lean combustion according to claim 1; It is characterized in that: at said lean-burn assist system is that said explosive motor is created under the situation of lean combustion condition, and said optimization electronic control module is an engine computer that makes explosive motor carry out lean combustion.
6. the common combustion power system of realization lean combustion according to claim 1; It is characterized in that: said optimization electronic control module is the part of engine computer; Said engine computer is controlled the fuel injection amount and the operation of explosive motor; At said lean-burn assist system is that said explosive motor is created under the situation of lean combustion condition, makes explosive motor be operated in the lean-burn state.
7. the common combustion power system of realization lean combustion according to claim 1; It is characterized in that: said inlet sensor is one of intake flow sensor, admission line absolute pressure transducer, TPS or its combination; Said intake flow sensor is positioned on the said admission line; Be used to survey the charge air flow state of said admission line and the size of charge flow rate, said admission line absolute pressure transducer is positioned on the said explosive motor admission line, is used to survey the pressure state of said admission line; Said TPS is positioned on the said closure, is used to survey the size at said throttle opening angle.
8. the common combustion power system of realization lean combustion according to claim 1 is characterized in that: said combustion power system information sensor is ECTS, engine rotation speed sensor, engine load sensor, vehicle speed sensor, intake air temperature sensor, accelerator pedal sensor and is installed in one of lambda sensor on the internal combustion engine exhaust gas pipeline or its combination.
9. the common combustion power system of realization lean combustion according to claim 1; It is characterized in that: one of the admission line of said lean-burn assist system and said explosive motor and the fuel channel of said explosive motor or its link to each other, and are the combinations that helps to realize the device or the device of lean combustion.
10. according to the common combustion power system of claim 1 or 9 described realization lean combustions, it is characterized in that: said lean-burn assist system is the brown gases generator, and said brown gases generator links to each other with the admission line of said explosive motor.
11. common combustion power system according to claim 1 or 9 described realization lean combustions; It is characterized in that: said lean-burn assist system is the combination of brown gases generator and fuel plasma reformer; Said brown gases generator links to each other with the admission line of said explosive motor, and said fuel plasma reformer links to each other with the fuel channel of said explosive motor.
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| CN2011202725144U CN202209218U (en) | 2011-07-29 | 2011-07-29 | General internal combustion dynamical system realizing lean combustion |
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| CN2011202725144U CN202209218U (en) | 2011-07-29 | 2011-07-29 | General internal combustion dynamical system realizing lean combustion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102900553A (en) * | 2011-07-29 | 2013-01-30 | 阮海生 | Energy conservation and emission reduction mechanism of internal combustion dynamical system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102900553A (en) * | 2011-07-29 | 2013-01-30 | 阮海生 | Energy conservation and emission reduction mechanism of internal combustion dynamical system |
| CN102900553B (en) * | 2011-07-29 | 2016-01-20 | 阮海生 | Combustion power energy saving of system reduces discharging mechanism |
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