阅读说明：本技术 一种缸内喷氢转子机电控点火控制方法 (A kind of cylinder is interior to spray hydrogen rotator electromechanical control ignition control method ) 是由 纪常伟 史程 汪硕峰 杨金鑫 马泽东 于 2019-08-19 设计创作，主要内容包括：本发明提供了一种缸内喷氢转子机电控点火系统的控制策略方法,属于内燃机控制技术领域。缸内直喷氢气转子发动机点燃转子燃烧室内的可燃混合气需要合理的火花塞位置、点火正时及放电能量,所以本发明在中高转速条件下采用双火花塞异步点火策略,通过布置双火花塞位置、控制前/后火花塞点火之间的时间间隙、分配前/后火花塞放电能量来实现发动机的点火控制。采用双火花塞异步点火,有效解决了转子燃烧室后部未燃区问题,提升了发动机的燃烧效率,降低了有害污染物的排放。另外,根据当前转速确定的点火控制策略,还可以减轻多次点火对火花塞电极的过度烧蚀,避免放电能量的浪费。(The present invention provides a kind of control strategy methods that hydrogen rotator electromechanical ignition control system is sprayed in cylinder, belong to internal combustion engine control technology field.In-cylinder direct-jet hydrogen rotary engine lights the indoor combustion mixture of rotor combustion and needs reasonable spark-plug location, ignition timing and discharge energy, so the present invention uses Double sparking plug synchronous ignition strategies under middle high speed conditions, the ignition control of engine is realized by time slot between arrangement dual ignition plug position, the front/rear plug ignition of control, the front/rear spark-discharge energy of distribution.It is lighted a fire using Double sparking plug synchronous, efficiently solves the problems, such as the unburned area in rotor combustion room rear portion, improve the efficiency of combustion of engine, reduce the discharge of noxious pollutant.In addition, can also mitigate repeatedly excessive ablation of the igniting to sparking-plug electrode according to the ignition control strategy that current rotating speed determines, avoid the waste of discharge energy.)

1. spraying hydrogen rotator electromechanical control ignition control method in a kind of cylinder, it is characterised in that: high pressure hydrogen is from high-pressure hydrogen storing tank (1) After out successively after pressure regulator valve (6), hydrogen flowmeter (7), fire-retardant valve (8), from being mounted on rotor combustion locular wall face Hydrogen direct-injection nozzle (9) enters rotor machine and is mixed and burned with gasoline, preceding spark plug and cylinder pressure sensor (3) and the first charge After amplifier (2) series connection, rear spark plug and cylinder pressure sensor (4) are installed in parallel again after connecting with the second charge amplifier (5) On cylinder body wall surface (20), electronic control unit (10) sends ignition signal to the first charge amplifier (2), second according to engine operating condition Charge amplifier (5) lights a fire to spark plug, and air flow meter (13) is equipped on rotor machine air intake duct to admission pressure Detected, gasoline from the fuel tank (16) after outflow behind oil pump (15) and fuel consumption meter (14), by being mounted on air intake duct Fuel injector (12) enters in air intake duct (18), enters combustion chamber with air inlet and burns；Hydrocarbon concentration sensor (17) position In on exhaust duct (19), the hydrocarbon concentration in exhaust is detected, and hydrocarbon concentration signal b is sent to electronic control unit (10)。

2. spraying hydrogen rotator electromechanical control ignition control method in cylinder according to claim 1, it is characterised in that: the preceding fire Spark plug is arranged on the horizontal center line of cylinder body wall surface (20) after Hua Saiyu；Between the preceding spark plug and rear spark plug away from From for 25~30mm, and it is arranged symmetrically according to eccentric crankshaft (21)；The preceding spark plug and rear spark plug are according to eccentric crankshaft (21) be radially distributed on central cross-section, the preceding spark plug to rotor machine upper end cover distance is 15~25mm；Spark plug afterwards It is 15~25mm to rotor machine lower cover distance.

3. spraying hydrogen rotator electromechanical control ignition control method in cylinder according to claim 1, it is characterised in that: described is automatically controlled Unit (10) controls the time of ignition of front and back spark plug according to tach signal respectively, specifically: when revolving speed n is less than or equal to When 3000rpm, using in compression travel latter stage asynchronous ignition mode, preceding spark plug advanced ignition, rear spark plug is lighted a fire again, double fire The time interval of spark plug ignition is 15 ° of EA~20 ° EA of eccentric crankshaft corner；When revolving speed n is 3000~6000rpm and do not include 3000 and 6000rpm, using in compression travel latter stage asynchronous ignition mode, preceding spark plug advanced ignition, rear spark plug is lighted a fire again, The time interval of twin ignition is 10 ° of EA~15 ° EA of eccentric crankshaft corner；When revolving speed n is greater than or equal to 6000rpm, Using in compression travel latter stage asynchronous ignition mode, preceding spark plug advanced ignition, rear spark plug is lighted a fire again, twin ignition Time interval is 5 ° of EA~10 ° EA of eccentric crankshaft corner；The compression travel latter stage is 25 ° of top dead centre pre-eccentric crank angle EA~35 ° EA.

4. spraying hydrogen rotator electromechanical control ignition control method in cylinder according to claim 1, it is characterised in that: described is automatically controlled Unit (10) controls the closing time of front and back plug ignition coil primary edge respectively, and then to control ignition coil secondary side Energy is exported, specifically: when Modern spark plugs advanced ignition, discharge energy is 25mJ~35mJ；When spark plug is lighted a fire again afterwards, put Electric flux is 5mJ~15mJ.

Technical field

The present invention provides hydrogen rotator electromechanical control ignition control method is sprayed in a kind of cylinder.It is related to rotary engine spark plug cloth Mode and ignition strategies are set, internal combustion engine control technology scope is belonged to.

Background technique

In order to slow down non-renewable energy resources exploitation and reduce pollutant emission, research emphasis has been placed on searching performance by people The alternative fuel of excellent dynamical system and high-efficiency cleaning.Rotary engine and hydrogen loading fuel are respectively as high-performance dynamical system Representative with novel substitute fuel causes the extensive concern of engine art.Rotary engine is compared to conventional reciprocating piston type Internal combustion engine, rotor machine have the characteristics that structure is simple, power to weight ratio is high, power density is big, vibration noise is small.Current rotor engine It is widely used in fields such as unmanned plane, spitkit and electronic distance increasing units.As a kind of gas that can be applied to engine State fuel, hydrogen is from a wealth of sources with its, flame propagation speed, ignition energy are low and the outstanding advantages such as diffusion coefficient is big cause it is general All over concern.

Igniting plays a crucial role in rotor machine in-cylinder process.However at present for rotary engine The excavation of ignition control strategy remains unchanged not deep enough.On the one hand, ignition timing is a key of Spark ignition engines Operating parameter.Premature igniting will lead to the rate of pressure rise and engine the acting rising in compression travel, it is easier to cause quick-fried The phenomenon that shake, engine knock, occurs；Igniting too late can bring acting decline of the burning mixt in expansion stroke, imperfect combustion Product increases.Therefore, appropriate ignition timing is the key factor that engine obtains high efficiency and low emission.On the other hand, point Fiery energy has especially important meaning to the functional reliability for guaranteeing ignition system.Ignition energy is too low, and engine is caused to fire Burning situation deteriorates, and power, torque decline, oil consumption rise, and discharge degenerates, and starting performance is deteriorated；Ignition energy is excessively high, is easy ablation Sparking-plug electrode shortens the service life of ignition system, or even can cause pre-ignition pinking, declines engine power, and parts are impaired.Cause This, it is necessary to ignition energy is limited in a suitable range.In addition, with the fast development of electronic control ignition technology, Mature application is obtained on reciprocating piston machine, it accurately controls ignition parameter to meet the needs of under different operating conditions. But there is larger difference therewith in the air motion form in rotor machine cylinder, the forward field of high speed is mixed to rationalization There is the phenomenon that layering in the fuel that gas distribution brings lot of challenges, especially in-cylinder direct-jet, air-fuel mixture process is more multiple It is miscellaneous.At the same time, current ignition control technology in the exploitation of rotor machine, using can not also be compared with reciprocating piston machine.

Summary of the invention

It is an object of the invention to overcome the drawbacks described above of existing ignition control method, a kind of interior spray of new cylinder is provided Hydrogen rotator electromechanical control ignition control method, can accurately control the ignition strategies of spark plug realize in cylinder gaseous mixture it is reliable It lights and burns, can solve the problems, such as that rotor engine efficiency is low and it is not up to standard to discharge, to optimize rotor mechanomotive force performance and and burning Characteristic.

The present invention solves above-mentioned ended questions and solves by the following technical programs:

Hydrogen rotator electromechanical control ignition control method is sprayed in a kind of cylinder, being related to device includes: high pressure hydrogen from high-pressure hydrogen storing tank (1) after being come out in successively after pressure regulator valve (6), hydrogen flowmeter (7), fire-retardant valve (8), from being mounted on rotor combustion locular wall face On hydrogen direct-injection nozzle (9) enter rotor machine be mixed and burned with gasoline, preceding spark plug and cylinder pressure sensor (3) and first After charge amplifier (2) series connection, rear spark plug and cylinder pressure sensor (4) connect with the second charge amplifier (5) after again parallel connection pacify On cylinder body wall surface (20), electronic control unit (10) sends ignition signal to charge amplifier (2), (5) according to engine operating condition It lights a fire to spark plug, air flow meter (13) is installed on rotor machine air intake duct, admission pressure is detected, gasoline After outflow in fuel tank (16) behind oil pump (15) and fuel consumption meter (14), entered by the fuel injector (12) being mounted on air intake duct In air intake duct (18), enters combustion chamber with air inlet and burn.Hydrocarbon concentration sensor (17) is located on exhaust duct (19), Hydrocarbon concentration in exhaust is detected, and hydrocarbon concentration signal b is sent to electronic control unit (10).

When rotor machine is in operating status, using Double sparking plug synchronous ignition strategies, by arrangement dual ignition plug position, It controls the time slot between front/rear plug ignition, distribute front/rear spark-discharge energy to realize the point fire control of engine System.It is lighted a fire using Double sparking plug synchronous, efficiently solves the problems, such as the unburned area in rotor combustion room rear portion, improve the burning of engine Efficiency reduces the discharge of noxious pollutant.

A kind of interior hydrogen dual ignition plug rotor machine that sprays of cylinder includes following electronic control ignition control process.

(1) spark plug is arranged:

Hydrogen rotator electromechanical control ignition control method is sprayed in cylinder according to claim 1, it is characterised in that: before described Spark plug and rear spark plug are arranged on the horizontal center line of cylinder body wall surface (20)；Between the preceding spark plug and rear spark plug Distance is 25~30mm, and is arranged symmetrically according to eccentric crankshaft (21)；The preceding spark plug and rear spark plug are according to eccentric crankshaft (21) be radially distributed on central cross-section, arriving rotor machine respectively, end cap distance is 15~25mm up and down.

(2) ignition timing:

Electronic control unit (10) controls the time of ignition of front and back spark plug according to tach signal respectively, specifically: when revolving speed n is small When 3000rpm, using in compression travel latter stage asynchronous ignition mode, preceding spark plug advanced ignition, rear spark plug is again Igniting, the time interval of twin ignition are 15 ° of EA~20 ° EA of eccentric crankshaft corner；When revolving speed n is 3000~6000rpm When and do not include 3000 and 6000rpm, using in compression travel latter stage asynchronous ignition mode, preceding spark plug advanced ignition, rear fire Hua Sai lights a fire again, and the time interval of twin ignition is 10 ° of EA~15 ° EA of eccentric crankshaft corner；When revolving speed n is greater than or equal to When 6000rpm, using in compression travel latter stage asynchronous ignition mode, preceding spark plug advanced ignition, rear spark plug is lighted a fire again, double fire The time interval of spark plug ignition is 5 ° of EA~10 ° EA of eccentric crankshaft corner；The compression travel latter stage is top dead centre pre-eccentric 25 ° of EA~35 ° EA of crank angle.

(3) ignition energy:

Electronic control unit (10) controls the closing time of front and back plug ignition coil primary edge respectively, and then to control igniting The output energy of coil secondary side, specifically: when Modern spark plugs advanced ignition, discharge energy is 25mJ~35mJ；Spark afterwards When plug is lighted a fire again, discharge energy is 5mJ~15mJ.

It the features of the present invention and has the beneficial effect that, aiming at the problem that, maximum discharge inefficient rotary engine, provides one kind Dual ignition plug double fuel rotor machine and its control method improve the discharge of rotor machine by way of hydrogen loading, while using double fire The problem of flower plug arrangement improvement is unfavorable for flame propagation because of the long and narrow chamber structure of rotor machine, effectively improves rotor The emission performance of engine and the efficiency of combustion for promoting fuel.In addition, may be used also according to the ignition control strategy that current rotating speed determines To mitigate repeatedly excessive ablation of the igniting to sparking-plug electrode, the waste of discharge energy is avoided.

Detailed description of the invention

Fig. 1 is the structural representation that the electronic control ignition system of spray hydrogen dual ignition plug rotor machine in cylinder of the present invention is implemented Figure.

Fig. 2 is the internal view of spray hydrogen dual ignition plug rotor machine in cylinder of the present invention.

Fig. 3 is the control schematic diagram of electronic control ignition of the present invention.

In figure: high-pressure hydrogen storing tank (1), the first charge amplifier (2), preceding spark plug and cylinder pressure sensor (3), rear spark plug And cylinder pressure sensor (4), the second charge amplifier (5), pressure reducing valve (6), hydrogen flowmeter (7), fire-retardant valve (8), hydrogen nozzle (9), electronic control unit (10), fire-retardant valve (11), fuel injector (12), air flow meter (13), fuel consumption meter (14), petrol pump (15), Fuel tank (16), hydrocarbon concentration sensor (17), air intake duct (18), exhaust duct (19), cylinder body wall surface (20), eccentric crankshaft (21).

Specific embodiment

With reference to the accompanying drawing and specific embodiment the present invention is further illustrated, but this hair

Bright protection scope is not limited to this.

Embodiment as shown in connection with fig. 1, in a kind of cylinder spray hydrogen rotator electromechanical control ignition control method include: high pressure hydrogen from After being come out in high-pressure hydrogen storing tank (1) successively after pressure regulator valve (6), hydrogen flowmeter (7), fire-retardant valve (8), from being mounted on rotor Hydrogen direct-injection nozzle (9) in combustion chamber wall surface enters rotor machine and is mixed and burned with gasoline, preceding spark plug and cylinder pressure sensing After device (3) is connected with the first charge amplifier (2), rear spark plug and cylinder pressure sensor (4) are connected with the second charge amplifier (5) It is installed in parallel again on rotor combustion locular wall face afterwards, electronic control unit (10) sends ignition signal to charge according to engine operating condition and puts Big device (2), (5) light a fire to spark plug, be equipped on rotor machine air intake duct air flow meter (13) to admission pressure into Row detection, gasoline behind oil pump (15) and fuel consumption meter (14), pass through the spray being mounted on air intake duct after the middle outflow of fuel tank (16) Oily device (12) enters in air intake duct (18), enters combustion chamber with air inlet and burns.Hydrocarbon concentration sensor (17) is located at On exhaust duct (19), the hydrocarbon concentration in exhaust is detected, and hydrocarbon concentration signal b is sent to electronic control unit (10).

When rotor machine is in operating status, using Double sparking plug synchronous ignition strategies, by arrangement dual ignition plug position, It controls the time slot between front/rear plug ignition, distribute front/rear spark-discharge energy to realize the point fire control of engine System.It is lighted a fire using Double sparking plug synchronous, efficiently solves the problems, such as the unburned area in rotor combustion room rear portion, improve the burning of engine Efficiency reduces the discharge of noxious pollutant.

A kind of interior hydrogen dual ignition plug rotor machine that sprays of cylinder includes following electronic control ignition control process.

(1) spark plug is arranged:

As shown in Fig. 2, preceding spark plug and rear spark plug are arranged on the horizontal center line of cylinder body wall surface (20)；Fire before described The distance between spark plug is 25~30mm after Hua Saihe, and is arranged symmetrically according to eccentric crankshaft (21)；The preceding spark plug with Spark plug being radially distributed on central cross-section according to eccentric crankshaft (21) afterwards, arrive respectively rotor machine up and down end cap distance for 15~ 25mm。

(2) ignition timing:

Electronic control unit (10) controls the time of ignition of front and back spark plug according to tach signal respectively, specifically: when revolving speed n is small When 3000rpm, using in compression travel latter stage asynchronous ignition mode, preceding spark plug advanced ignition, rear spark plug is again Igniting, the time interval of twin ignition are 15 ° of EA~20 ° EA of eccentric crankshaft corner；When revolving speed n is 3000~6000rpm When and do not include 3000 and 6000rpm, using in compression travel latter stage asynchronous ignition mode, preceding spark plug advanced ignition, rear fire Hua Sai lights a fire again, and the time interval of twin ignition is 10 ° of EA~15 ° EA of eccentric crankshaft corner；When revolving speed n is greater than or equal to When 6000rpm, using in compression travel latter stage asynchronous ignition mode, preceding spark plug advanced ignition, rear spark plug is lighted a fire again, double fire The time interval of spark plug ignition is 5 ° of EA~10 ° EA of eccentric crankshaft corner；The compression travel latter stage is top dead centre pre-eccentric 25 ° of EA~35 ° EA of crank angle.

(3) ignition energy:

Electronic control unit (10) controls the closing time of front and back plug ignition coil primary edge respectively, and then to control igniting The output energy of coil secondary side, specifically: when Modern spark plugs advanced ignition, discharge energy is 25mJ~35mJ；Spark afterwards When plug is lighted a fire again, discharge energy is 5mJ~15mJ.

The embodiment is preferred form of implementation of the invention, but the present invention is not limited to above-mentioned forms of implementation, not Under conditions of substantive content of the invention, any conspicuous improvement that those skilled in the art can make, replacement Or deformation all belongs to the scope of protection of the present invention.