CN106150734A - A kind of dual fuel nozzle drive circuit and control method thereof - Google Patents

Abstract

The invention discloses a kind of dual fuel nozzle drive circuit and control method thereof, relate to automobile technical field, reduce the hardware cost of system and the volume of controller, improve reliability and the Electro Magnetic Compatibility of system.Scheme is: include that M level includes that first jet drives submodule, second nozzle to drive submodule, input control submodule, output control submodule and select the nozzle of submodule to drive module and M Multiplexing module；Input controls submodule and drives submodule to be connected with first jet, also drives submodule to be connected with second nozzle；First jet drives submodule, second nozzle to drive submodule to be connected with selecting submodule respectively, selects submodule also to control submodule with output and is connected；Except afterbody nozzle drives every first order jet nozzle of module to drive module to drive the output of module to control submodule by Multiplexing module multiplexing next stage nozzle, afterbody nozzle drives module to drive the output of module to control submodule by Multiplexing module multiplexing first order nozzle.

Description

A kind of dual fuel nozzle drive circuit and control method thereof

Technical field

The present invention relates to automobile technical field, particularly relate to a kind of dual fuel nozzle drive circuit and Its control method.

Background technology

Along with the raising of people's living standard, the popularity of automobile is more and more higher, and along with section The progress learned a skill, in conjunction with EFI, homogeneity compression-ignition (English: Homogeneous Charge Compression Ignition, is called for short: HCCI) and homogeneous charge compression ignition (English: PCCI) etc. premixed charge compression ignition, is called for short: in a new generation of technology Combustion engine technology, it is already possible to while improving internal combustion engine thermal efficiency, reduces the row of vehicle exhaust Put.Taking this as an opportunity, and internal combustion engine is also no longer limited to diesel engine and gasoline engine, and other fuel are very Electromotor to fuel combination is increasingly becoming the emphasis of industry research.

In the prior art, the double fuel being principal fuel supply mode with gasoline and diesel oil starts Machine, mainly by the basis of original fuel oil supply system, increases a set of fuel supply system newly The mode of system carries out implementing, such as, on the basis of original gas supply system, and newly-increased one Set diesel fuel supply system, to realize petrol and diesel oil dual fuel engine.Further, for fuel oil is supplied The drive circuit that fuel nozzle is controlled included to system, it is contemplated that petrol jet and Difference in the characteristic of diesel fuel nozzle and type of drive, on hardware realizes, also the most logical Cross the petrol jet that gas supply system includes by single a set of petrol jet drive circuit to enter Row controls, and is included diesel fuel supply system by single diesel nozzle drive circuit Diesel fuel nozzle be controlled, i.e. need to use two set drive circuits to realize two set fuel supply systems The control of the fuel nozzle that system includes.

In prior art, at least there are the following problems: realizes two sets using two set drive circuits During the control of the fuel nozzle that fuel oil supply system includes, more circuit components can be used, So, will cause the increase of the hardware cost of system, the volume of controller increases, and also can make Reliability and the Electro Magnetic Compatibility of the system of obtaining are negatively affected.

Summary of the invention

The present invention provides a kind of dual fuel nozzle drive circuit and control method thereof, reduces system Hardware cost and the volume of controller, and improve reliability and the Electro Magnetic Compatibility of system.

For reaching above-mentioned purpose, the present invention adopts the following technical scheme that

A first aspect of the present invention, it is provided that a kind of dual fuel nozzle drive circuit, including: M level Nozzle drives module and M Multiplexing module, described M >=2；

Wherein, described nozzle driving module includes that first jet drives submodule, second nozzle to drive Mover module, input control submodule, output controls submodule and select submodule；

The first end that described input controls submodule is connected with power supply, and described input controls submodule The second end and described first jet drive the first end of submodule to be connected, described input controls sub Second end of module also drives the first end of submodule to be connected with described second nozzle, and described first Nozzle drives the second end of submodule to be connected with the first selection contact of described selection submodule, institute Stating second nozzle drives the second end of submodule to connect with the second selection contact of described selection submodule Connecing, the first end that the central contact of described selection submodule controls submodule with described output is connected, Described output controls the second end ground connection of submodule, described central contact selectivity and described first Contact or described second is selected to select contact to connect；

Except nozzle described in afterbody drives in addition to module, nozzle described in every one-level drives the of module Two nozzles drive the second end of submodule to spray with described in next stage also by a described Multiplexing module The first end that mouth drives the output of module to control submodule connects, and described in afterbody, nozzle drives The second nozzle of module drives the second end of submodule also by a described Multiplexing module and first The first end that the described nozzle of level drives the output of module to control submodule connects；

When described central contact selectivity selects contact to be connected with described first, described input control System module is under the control controlling end that described input controls submodule, and described output controls Submodule is under the control controlling end that described output controls submodule so that described input controls Submodule, described first jet drive submodule and described output to control submodule composition loop, Thus drive submodule to drive first jet to be held open state with to gas by described first jet Cylinder injection fuel；Described input controls submodule and controls the control end of submodule in described input Control under, and described in next stage nozzle drive module output control submodule in next stage institute Stating nozzle drives the output of module to control under the control controlling end of submodule so that described input Control submodule, described second nozzle drives described in submodule, described Multiplexing module and next stage Nozzle drives the output of module to control submodule composition loop, thus is driven by described second nozzle Mover module drive second nozzle is held open state with to described in-cylinder injection fuel；

When described central contact selectivity selects contact to be connected with described second, described input control System module is under the control controlling end that described input controls submodule, and described output controls Submodule is under the control controlling end that described output controls submodule so that described input controls Submodule, described second nozzle drive submodule and described output to control submodule composition loop, Thus by described second nozzle drive submodule drive described second nozzle be held open state with To described in-cylinder injection fuel.

In conjunction with first aspect, in the implementation that the first is possible, described first jet is used for To described in-cylinder injection diesel oil；

Described dual fuel nozzle drive circuit also includes: input total control module；Described nozzle drives Dynamic model block also includes: is arranged at described input and controls submodule and described first jet driving submodule Anti-return submodule between block；

First end of described input total control module is connected with power supply, described input total control module The second end drive the first jet of module to drive the first end of submodule even with every grade of described nozzle Connect；

Described input total control module described input total control module control end control under, And described output control submodule described output control submodule control end control under, make Obtain described input total control module, described first jet drives submodule and described output controls son Module composition loop, thus drive submodule to drive described first jet by described first jet Open with to described in-cylinder injection fuel.

In conjunction with first aspect, in the implementation that the second is possible, described dual fuel nozzle drives Galvanic electricity road also includes: a control N switch controller, wherein, and N=M；

A described control N switch controller includes a switch control terminal；

Under the control of described one switch control terminal controlling N switch controller, every grade of described nozzle Drive module selects the central contact selectivity of submodule and the first choosing of described selection submodule The the second selection contact selecting contact or described selection submodule connects.

In conjunction with first aspect, the first possible implementation of first aspect, first aspect In the implementation that the second is possible any one, in the implementation that the third is possible,

The drive circuit that described first jet drives submodule to be described first jet；

The drive circuit that described second nozzle drives submodule to be described second nozzle；

It is the first transistor that described input controls submodule, wherein, and the grid of described the first transistor The most described input controls the control end of submodule, and the first of described the first transistor is extremely described Input controls the first end of submodule, and the second the most described input of described the first transistor controls Second end of submodule；

It is transistor seconds that described output controls submodule, wherein, and the grid of described transistor seconds The most described output controls the control end of submodule, and the first of described transistor seconds is extremely described Output controls the first end of submodule, and the second the most described output of described transistor seconds controls Second end of submodule；

Described selection submodule is single-pole double-throw switch (SPDT)；

Described Multiplexing module at least includes first diode.

In conjunction with the first possible implementation of first aspect, the 4th kind of possible realization side In formula,

Described input total control module is third transistor, wherein, and the grid of described third transistor The control end of the most described input total control module, the first of described third transistor is extremely described First end of input total control module, the second the most described input master control of described third transistor Second end of molding block；

Described anti-return submodule at least includes second diode.

A second aspect of the present invention, it is provided that a kind of dual fuel nozzle drive circuit, including: nozzle Drive module, output multiplexing control module and Multiplexing module；

Wherein, described nozzle driving module includes that first jet drives submodule, second nozzle to drive Mover module, input control submodule, output controls submodule and select submodule；

The first end that described input controls submodule is connected with power supply, and described input controls submodule The second end and described first jet drive the first end of submodule to be connected, described input controls sub Second end of module also drives the first end of submodule to be connected with described second nozzle, and described first Nozzle drives the second end of submodule to be connected with the first selection contact of described selection submodule, institute Stating second nozzle drives the second end of submodule to connect with the second selection contact of described selection submodule Connecing, the first end that the central contact of described selection submodule controls submodule with described output is connected, Described output controls the second end ground connection of submodule, and described second nozzle drives the second of submodule The first end also by described Multiplexing module with described output multiplexing control module is held to be connected, described Second end ground connection of output multiplexing control module, described central contact selectivity and described first choosing Selecting contact or described second selects contact to connect；

When described central contact selectivity selects contact to be connected with described first, described input control System module is under the control controlling end that described input controls submodule, and described output controls Submodule is under the control controlling end that described output controls submodule so that described input controls Submodule, described first jet drive submodule and described output to control submodule composition loop, Thus drive submodule to drive first jet to be held open state with to gas by described first jet Cylinder injection fuel；Described input controls submodule and controls the control end of submodule in described input Control under, and described output multiplexing control module is in the control of described output multiplexing control module Under the control of end so that described input controls submodule, described second nozzle drives submodule, Described Multiplexing module and described output multiplexing control module constitute loop, thus by described second Nozzle drives submodule to drive second nozzle to be held open state to fire to described in-cylinder injection Material；

When described central contact selectivity selects contact to be connected with described second, described input control System module is under the control controlling end that described input controls submodule, and described output controls Submodule is under the control controlling end that described output controls submodule so that described input controls Submodule, described second nozzle drive submodule and described output to control submodule composition loop, Thus by described second nozzle drive submodule drive described second nozzle be held open state with To described in-cylinder injection fuel.

In conjunction with second aspect, in the implementation that the first is possible, described first jet is used for To described in-cylinder injection diesel oil；

Described dual fuel nozzle drive circuit also includes: input total control module；

First end of described input total control module is connected with power supply, described input total control module The second end and described first jet drive the first end of submodule to be connected；

Described input total control module described input total control module control end control under, And described output control submodule described output control submodule control end control under, make Obtain described input total control module, described first jet drives submodule and described output controls son Module composition loop, thus drive submodule to drive described first jet by described first jet Open with to described in-cylinder injection fuel.

A third aspect of the present invention, it is provided that one is applied to first aspect, or the appointing of first aspect A kind of control method of the dual fuel nozzle drive circuit described in possible implementation, including:

Controlling described central contact selects contact to be connected with described first, is controlled by described input The control end of submodule, controls described input and controls the first end and the described input control of submodule Second end conducting of submodule, and the control end of submodule is controlled by described output, control institute State output and control the first end of submodule and the second end conducting of described output control submodule, make Obtain described input control submodule, described first jet drives submodule and described output control sub Module composition loop, thus drive submodule to drive described first jet by described first jet The state that is held open is with to described in-cylinder injection fuel；Submodule is controlled by described input Controlling end, the first end and the described input that control described input control submodule control submodule Second end conducting, and drive the output of module to control the control of submodule by nozzle described in next stage End processed, the nozzle described in next stage that controls of control drives the output of module to control the first of submodule Nozzle described in end and next stage drives the output of module to control the second end conducting of submodule so that Described input control submodule, described second nozzle drive submodule, described Multiplexing module and under Nozzle described in one-level drives the output of module to control submodule to constitute loop, thus by described the Two nozzles drive submodule to drive described second nozzle to be held open state to spray in described cylinder Penetrate fuel；

Controlling described central contact selects contact to be connected with described second, is controlled by described input The control end of submodule, controls described input and controls the first end and the described input control of submodule Second end conducting of submodule, and the control end of submodule is controlled by described output, control institute State output and control the first end of submodule and the second end conducting of described output control submodule, make Obtain described input control submodule, described second nozzle drives submodule and described output control sub Module composition loop, thus drive submodule to drive described second nozzle by described second nozzle The state that is held open is with to described in-cylinder injection fuel.

In conjunction with the third aspect, in the implementation that the first is possible, when described first jet is used In to described in-cylinder injection diesel oil, described dual fuel nozzle drive circuit also includes inputting master control Molding block, when described nozzle drives module also to include anti-return submodule, described method also includes:

By the control end of described input total control module, control described input total control module First end and the second end conducting of described input total control module, and control son by described output The control end of module, controls described output and controls the first end and described output control of submodule Second end conducting of module so that described input total control module, described first jet drive son Module and described output control submodule and constitute loop, thus drive son by described first jet First jet described in module drive is opened with to described in-cylinder injection fuel.

A fourth aspect of the present invention, it is provided that a kind of be applied to the first of second aspect or second aspect Plant the control method of possible dual fuel nozzle drive circuit described in implementation, including:

Controlling described central contact selects contact to be connected with described first, is controlled by described input The control end of submodule, controls described input and controls the first end and the described input control of submodule Second end conducting of submodule, and the control end of submodule is controlled by described output, control institute State output and control the first end of submodule and the second end conducting of described output control submodule, make Obtain described input control submodule, described first jet drives submodule and described output control sub Module composition loop, thus drive submodule to drive described first jet by described first jet The state that is held open is with to described in-cylinder injection fuel；Submodule is controlled by described input Controlling end, the first end and the described input that control described input control submodule control submodule Second end conducting, and by the control end of described output multiplexing control module, control described output First end of multiplexing control module and the second end conducting of described output multiplexing control module so that Described input controls submodule, described second nozzle drives submodule, described Multiplexing module and institute State output multiplexing control module and constitute loop, thus drive submodule to drive by described second nozzle Dynamic described second nozzle is held open state with to described in-cylinder injection fuel；

Controlling described central contact selects contact to be connected with described second, is controlled by described input The control end of submodule, controls described input and controls the first end and the described input control of submodule Second end conducting of submodule, and the control end of submodule is controlled by described output, control institute State output and control the first end of submodule and the second end conducting of described output control submodule, make Obtain described input control submodule, described second nozzle drives submodule and described output control sub Module composition loop, thus drive submodule to drive described second nozzle by described second nozzle The state that is held open is with to described in-cylinder injection fuel.

The dual fuel nozzle drive circuit of present invention offer and control method, this dual fuel nozzle Drive circuit uses and comprises first jet driving submodule, second nozzle driving submodule, input Control submodule, output controls submodule and select a set of drive circuit of submodule to the first spray Mouth and second nozzle are controlled, i.e. by using a set of drive circuit to achieve double fuel spray The control of mouth, reduces the hardware cost of system and the volume of controller, and improves system Reliability and Electro Magnetic Compatibility.Further, in addition to by module will be driven except afterbody nozzle Every first order jet nozzle drives the second nozzle of module to drive the second end of submodule by a multiplexing mould The first end that block drives the output of module to control submodule with next stage nozzle is connected, and will be last First order jet nozzle drives the second nozzle of module to drive the second end of submodule by a Multiplexing module The output driving module with first order nozzle controls the first end of submodule and is connected, i.e. by output The multiplexing controlling submodule meets the demand of double fuel blending burning.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below The accompanying drawing used required in embodiment or description of the prior art will be briefly described, aobvious and Easily insight, the accompanying drawing in describing below is only some embodiments of the present invention, for this area From the point of view of those of ordinary skill, on the premise of not paying creative work, it is also possible to according to this A little accompanying drawings obtain other accompanying drawing.

A kind of dual fuel nozzle drive circuit that Fig. 1 provides for the embodiment of the present invention one；

The another kind of dual fuel nozzle drive circuit that Fig. 2 provides for the embodiment of the present invention one；

A kind of dual fuel nozzle drive circuit that Fig. 3 provides for the embodiment of the present invention two；

The another kind of dual fuel nozzle drive circuit that Fig. 4 provides for the embodiment of the present invention two；

A kind of dual fuel nozzle drive circuit that Fig. 5 provides for the embodiment of the present invention three；

A kind of dual fuel nozzle drive circuit that Fig. 6 provides for the embodiment of the present invention four；

The controlling party of a kind of dual fuel nozzle drive circuit that Fig. 7 provides for the embodiment of the present invention five Method flow chart；

The controlling party of a kind of dual fuel nozzle drive circuit that Fig. 8 provides for the embodiment of the present invention six Method flow chart.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present invention Case is clearly and completely described, it is clear that described embodiment is only the present invention one Divide embodiment rather than whole embodiments.Based on the embodiment in the present invention, this area is general The every other embodiment that logical technical staff is obtained under not making creative work premise, Broadly fall into the scope of protection of the invention.

It should be noted that the transistor used in all embodiments of the invention can be all thin film Transistor or field effect transistor or the identical device of other characteristics, due to the transistor that uses here Source electrode, drain electrode be symmetrical, so its source electrode, drain electrode can exchange.Real in the present invention Execute in example, for distinguishing transistor the two poles of the earth in addition to grid, wherein will be referred to as source electrode, separately in a pole One pole is referred to as drain electrode.Additionally, distinguish transistor can be divided into N-type according to the characteristic of transistor Transistor or P-type transistor.

The embodiment of the present invention one provides a kind of dual fuel nozzle drive circuit, as it is shown in figure 1, should Dual fuel nozzle drive circuit may include that M level nozzle drives module and M Multiplexing module, Wherein M >=2.

Exemplary, M level nozzle driving module is called: first order nozzle drives module 11, second level nozzle drives module 12 ... M level nozzle drives module 1M；Multiple by M It is called by module: Multiplexing module 21 .... Multiplexing module 2M.

Wherein, first order nozzle drive module 11 may include that first jet drive submodule 111, Second nozzle drives submodule 112, input to control submodule 113, output controls submodule 114 With selection submodule 115；

Second level nozzle drive module 12 may include that first jet drive submodule 121, the Two nozzles drive submodule 122, input to control submodule 123, output controls submodule 124 and Select submodule 125；

By that analogy；

M level nozzle drive module 1M may include that first jet drive submodule 1M1, Second nozzle drives submodule 1M2, input to control submodule 1M3, output controls submodule 1M4 With selection submodule 1M5.

Drive as a example by module 11 by first order nozzle, see dual fuel nozzle as shown in Figure 1 and drive Galvanic electricity road, the annexation between each module drive module to include nozzle illustrates.Its In, input controls the first end of submodule 113 and is connected with power supply, and input controls submodule 113 The second end and first jet drive the first end of submodule 111 to be connected, input control submodule Second end of 113 also drives the first end of submodule 112 to be connected with second nozzle, and first jet drives Second end of mover module 111 is connected with the first selection contact A 1 selecting submodule 115, the Two nozzles drive the second end of submodule 112 and select the second selection contact A 2 of submodule 115 Connect, select central contact A0 of submodule 115 and the first end of output control submodule 114 Connecting, output controls the second end ground connection of submodule 114, central contact A0 selectivity and first Contact A 1 or second is selected to select contact A 2 to connect.

In addition to afterbody (i.e. M level) nozzle drives module 1M, every first order jet nozzle drives The second nozzle of module drives the second end of submodule to spray with next stage also by a Multiplexing module The first end that mouth drives the output of module to control submodule connects, and wherein, drives with first order nozzle As a example by dynamic model block 11 and second level nozzle drive module 12, first order nozzle drives module 11 Second nozzle drives the second end of submodule 112 to drive with second level nozzle also by Multiplexing module 21 The output of dynamic model block 12 controls the first end of submodule 124 and connects.Afterbody (i.e. M level) Nozzle drives the second nozzle of module 1M to drive second end of submodule 1M2 also by one again The output of module 11 is driven to control the first end of submodule 114 with module 2M and first order nozzle Connect.

Wherein, driving as a example by module 11 by first order nozzle, first jet drives submodule 111 For the drive circuit of first jet, it is used for driving first jet to spray the first fuel in cylinder, Second nozzle drives submodule 112 to be the drive circuit of second nozzle, is used for driving second nozzle Spraying the second fuel in cylinder, remaining every grade nozzle drives module to drive mould with first order nozzle Block 11 is similar to, and this is no longer going to repeat them for the present invention.Based on this, the present invention provide double fuel Nozzle drive circuit at least includes following three kinds of jet modes: pure first fuel mode, pure second Fuel mode, dual fuel mode.Wherein can be by mould each in dual fuel nozzle drive circuit The cooperation of block controls, and sprays the fuel of correspondence in cylinder with above-mentioned three kinds of jet modes.

Drive as a example by module 11 by first order nozzle, concrete, when center contact A 0 selectivity When selecting contact A 1 to be connected with first, input controls submodule 113 and controls submodule in input Under the control of the control end B1 of 113, and output controls submodule 114 and controls submodule in output Under the control of the control end C1 of 114, so that input controls submodule 113, first jet Drive submodule 111 and output to control submodule 114 and constitute loop, thus pass through first jet Submodule 111 is driven to drive first jet to be held open state with to in-cylinder injection fuel, with In time, control sub owing to second level nozzle drives the output of module 12 to control submodule 124 in this output Under the control of the control end C1 of module 124 so that input controls submodule 113, second nozzle Submodule 112, Multiplexing module 21 and second level nozzle is driven to drive the output of module 12 to control son Module 124 can not constitute loop, so will spray in cylinder with pure first fuel mode One fuel.

When center contact A 0 selectivity and first selects contact A 1 to connect, input controls submodule Block 113 is under the control of the control end B1 of input control submodule 113, and output controls submodule Block 114 is under the control of the control end C1 of output control submodule 114, so that input control System module 113, first jet drive submodule 111 and output control submodule 114 to constitute back Road, thus by first jet drive submodule 111 drive first jet be held open state with To in-cylinder injection fuel, meanwhile, input controls submodule 113 and controls submodule 113 in input Control end B1 control under, and next stage (i.e. the second level) nozzle drive module 12 defeated Going out to control submodule 124 drives the output of module 12 to control submodule 124 at next stage nozzle Control under the control of end C1 so that input controls submodule 113, second nozzle drives submodule 112, Multiplexing module 21 and next stage nozzle drive the output of module 12 to control submodule 124 structure Become loop, thus drive submodule 112 to drive second nozzle to be held open shape by second nozzle State, with to in-cylinder injection fuel, i.e. sprays the first fuel and with dual fuel mode in cylinder Two fuel.

When center contact A 0 selectivity and second selects contact A 2 to connect, input controls submodule Block 113 is under the control of the control end B1 of input control submodule 113, and output controls submodule Block 114 is under the control of the control end C1 of output control submodule 114 so that input controls son Module 113, second nozzle drive submodule 112 and output control submodule 114 to constitute loop, Thus drive submodule 112 to drive second nozzle to be held open state with to gas by second nozzle Cylinder injection fuel, i.e. sprays the second fuel with pure second fuel mode in cylinder.

It should be noted that the dual fuel nozzle drive circuit that the embodiment of the present invention provides can be fitted For including the electromotor of at least three cylinder.Concrete, in order to avoid oil spout phase coincidence Situation occurs, the dual fuel nozzle drive circuit that the embodiment of the present invention provides is at least two not The dual fuel nozzle that the cylinder of adjacent igniting is corresponding, i.e. first jet and the control of second nozzle, It is to say, when for including the electromotor of three cylinders, it is double that the embodiment of the present invention provides Two cylinders that fuel nozzle drive circuit may be used for non-conterminous igniting in three cylinders are corresponding The control of dual fuel nozzle；When for including four or more the electromotor of cylinder, The cylinder of igniting non-conterminous in all cylinders can be divided at least two groups, and wherein the present invention implements The dual fuel nozzle drive circuit that example provides may be used for one group of dual fuel nozzle corresponding to cylinder Control.Wherein, when the cylinder of igniting non-conterminous in all cylinders is divided at least two groups, respectively Group dual fuel nozzle corresponding to cylinder can under the control of respective dual fuel nozzle drive circuit, Each group of dual fuel nozzle corresponding to cylinder can be realized and be in different jet modes, so at mould During formula switching, it is ensured that reliability during pattern switching and the stationarity of moment of torsion output.

It should be noted that the double fuel described in the embodiment of the present invention can be natural gas, bavin Oil, gasoline etc. can make electromotor produce any two kinds in the fuel of power, and the present invention implements Example at this to this and be not particularly limited.

In embodiments of the present invention, further, when first jet is for in-cylinder injection bavin During oil, when the i.e. first fuel is diesel oil, for improving response speed when first jet is opened, adopt With high pressure, first jet is pulled open, as in figure 2 it is shown, the double fuel spray that the embodiment of the present invention provides Mouth drive circuit can also include: input total control module 31.

Every first order jet nozzle drives module to include: is arranged at input and controls submodule and first Nozzle drives the anti-return submodule between submodule.

Concrete: first order nozzle drives module 11 to include: is arranged at input and controls son Module 113 and first jet drive the anti-return submodule 116 between submodule 111；

Second level nozzle drives module 12 may include that, and being arranged at input controls submodule 123 He First jet drives the anti-return submodule 126 between submodule 121；

By that analogy；

M level nozzle drives module 1M may include that, and being arranged at input controls submodule 1M3 With first jet drives the anti-return submodule 1M6 between submodule 1M1.

Wherein, the first end of input total control module 31 is connected with power supply, inputs total control module Second end of 31 and every grade of nozzle drive the first jet of module to drive the first end of submodule even Connect, i.e. the second end of input total control module 31 drives the first of module 11 with first order nozzle Nozzle drives the first end of submodule 111 to connect, and also drives the of module 12 with second level nozzle One nozzle drives the first end of submodule 121 to connect ..., also drive module with M level nozzle The first jet of 1M drives first end of submodule 1M1 to connect.

Wherein, the voltage of power supply that the first end with input total control module 31 is connected be higher than with often The voltage of the power supply that the first end that level nozzle drives the input of module to control submodule connects, so, While using high pressure to pull open first jet, by using low voltage to drive first jet to protect Hold opening, reduce the power consumption of drive circuit, also reduce the heat that drive circuit produces.

Driving as a example by module 11 by first order nozzle, input total control module 31 is in input master control Under the control of the control end D1 of molding block 31, and output controls submodule 114 in output control Under the control of the control end C1 of submodule 114 so that input total control module 31, first jet Drive submodule 111 and output to control submodule 114 and constitute loop, thus pass through first jet Submodule 111 is driven to drive first jet to open with to in-cylinder injection fuel.

In embodiments of the present invention, further, as in figure 2 it is shown, dual fuel nozzle drives electricity Road can also include: a control N switch controller 41, wherein, and N=M.

One control N switch controller 41 includes a switch control terminal E1.

Under the control of the switch control terminal E1 of a control N switch controller 41, every grade of nozzle drives The central contact A0 selectivity selecting submodule of dynamic model block selects with select submodule first Second selection contact A 2 of contact A 1 or selection submodule connects.

Wherein, during a control N switch controller 41 can directly control M level nozzle driving module Including selection submodule, say, that by one control N switch controller 41 on-off control End E1 just can realize M level nozzle drives every grade of nozzle in module drive module to include Select submodule control.

Exemplary, when the switch control terminal E1 of a control N switch controller 41 does not enables, M level nozzle drives the center selecting submodule that every grade of nozzle in module drives module to include Contact A 0 selectivity and first selects contact A 1 to connect, at a control N switch controller 41 When switch control terminal E1 enables, M level nozzle drives every grade of nozzle in module to drive in module and wraps The central contact A0 selectivity selecting submodule included and second selects contact A 2 to connect.

Wherein, the dual fuel nozzle drive circuit provided as the present invention is used for including four or four During the electromotor of above cylinder, in all cylinders, the cylinder of non-conterminous igniting is divided at least two Group, now, the dual fuel nozzle drive circuit that the embodiment of the present invention provides may be used for one group of gas The control of the dual fuel nozzle that cylinder is corresponding, accordingly, (this system comprises for often group system The dual fuel nozzle drive circuit being controlled of the dual fuel nozzle that cylinder is corresponding) control that includes The number once control N switch controller 41 of system can be arranged according to the packet count of cylinder, i.e. One group of cylinder is correspondingly arranged one one control N switch controller 41.

In embodiments of the present invention, further, drive as a example by module 11 by first order nozzle, First jet drives submodule 111 to be the drive circuit of first jet.

Second nozzle drives submodule 112 to be the drive circuit of second nozzle.

It is the first transistor that input controls submodule 113, and wherein, the grid of the first transistor is Input controls the control end B1 of submodule 113, and the first of the first transistor extremely inputs control First end of module 113, the second of the first transistor extremely inputs and controls the of submodule 113 Two ends.

It is transistor seconds that output controls submodule 114, and wherein, the grid of transistor seconds is Output controls the control end C1 of submodule 114, and the first of transistor seconds extremely exports control First end of module 114, the second of transistor seconds extremely exports and controls the of submodule 114 Two ends.

Selecting submodule 115 is single-pole double-throw switch (SPDT).

Multiplexing module 21 at least includes first diode.

It should be noted that remaining every grade nozzle drives the concrete of each submodule that module includes Describe, drive with the first order nozzle specific descriptions of corresponding submodule in module 11 to be similar to, this This is no longer going to repeat them for bright embodiment.And the specific descriptions of remaining Multiplexing module also with multiplexing mould The specific descriptions of block 21 are similar to, and this is no longer going to repeat them for the embodiment of the present invention.

In embodiments of the present invention, further, input total control module 31 is third transistor, Wherein, the grid of third transistor is the control end D1 of input total control module 31, and the trimorphism The first of body pipe extremely inputs the first end of total control module 31, and the second of third transistor is extremely Second end of input total control module 31.

Driving as a example by module 11 by first order nozzle, anti-return submodule 116 at least includes one Second diode, remaining every grade nozzle drives specifically retouching of the anti-return submodule that module includes State, drive with the first order nozzle specific descriptions of anti-return submodule 116 in module 11 similar, This is no longer going to repeat them for the embodiment of the present invention.

The dual fuel nozzle drive circuit that the present invention provides, uses and comprises first jet driving submodule Block, second nozzle drive submodule, input to control submodule, output controls submodule and selection First jet and second nozzle are controlled by a set of drive circuit of submodule, i.e. by using A set of drive circuit achieves the control to dual fuel nozzle, reduce system hardware cost and The volume of controller, and improve reliability and the Electro Magnetic Compatibility of system, it is also possible to reduce The scale of drive circuit, saves the resource of main control chip.Further, by spraying except afterbody Mouth drives the every first order jet nozzle outside module to drive the second nozzle of module to drive the second end of submodule The output of module is driven to control the first end of submodule by a Multiplexing module and next stage nozzle Connect, and afterbody nozzle drives the second nozzle of module drive the second end of submodule to lead to Crossing a Multiplexing module drives the output of module to control the first end of submodule even with first order nozzle Connect, i.e. met the demand of double fuel blending burning by the multiplexing of output control submodule, and And it is also prevented from the appearance of false triggering phenomenon.

Further, when carrying out pattern switching, can be by controlling double fuel corresponding to each group of cylinder Nozzle is in different jet modes, reliability when improving pattern switching and moment of torsion output flat Stability.And the dual fuel nozzle drive circuit that the present invention provides is applicable to gasoline premix, diesel oil pressure Burn engine.

The embodiment of the present invention two provides a kind of dual fuel nozzle drive circuit, as it is shown on figure 3, bag Include: nozzle drives module 51, output multiplexing control module 52 and Multiplexing module 53；

Wherein, nozzle drives module 51 to include first jet driving submodule 511, second nozzle Drive submodule 512, input to control submodule 513, output controls submodule 514 and selects son Module 515.

Dual fuel nozzle drive circuit shown in Figure 3, input controls the of submodule 513 One end is connected with power supply, and input controls the second end of submodule 513 and drives submodule with first jet First end of block 511 connects, and input controls the second end of submodule 513 and also drives with second nozzle First end of mover module 512 connects, and first jet drives the second end and the choosing of submodule 511 The the first selection contact F1 selecting submodule 515 connects, and second nozzle drives the of submodule 512 Two ends are connected with the second selection contact F2 selecting submodule 515, select in submodule 515 The first end that heart contact F0 controls submodule 514 with output is connected, and output controls submodule 514 The second end ground connection, second nozzle drive submodule 512 the second end also by Multiplexing module 53 It is connected with the first end of output multiplexing control module 52, the second of output multiplexing control module 52 End ground connection, central contact F0 selectivity and first selects contact F1 or second to select contact F2 even Connect.

When central contact F0 selectivity and first selects contact F1 to connect, input controls submodule Block 513 is under the control of the control end G1 of input control submodule 513, and output controls submodule Block 514 is under the control of the control end H1 of output control submodule 514 so that input controls son Module 513, first jet drive submodule 511 and output control submodule 514 to constitute loop, Thus drive submodule 511 to drive first jet to be held open state with to gas by first jet Cylinder injection fuel, simultaneously because output multiplexing control module 52 is in this output multiplexing control module Under the control of the control end J1 of 52 so that input controls submodule 513, second nozzle drives son Module 512, Multiplexing module 53 and output multiplexing control module 52 can not constitute loop, the most just The first fuel can be sprayed in cylinder with pure first fuel mode.

When central contact F0 selectivity and first selects contact F1 to connect, input controls submodule Block 513 is under the control of the control end G1 of input control submodule 513, and output controls submodule Block 514 is under the control of the control end H1 of output control submodule 514 so that input controls son Module 513, first jet drive submodule 511 and output control submodule 514 to constitute loop, Thus drive submodule 511 to drive first jet to be held open state with to gas by first jet Cylinder injection fuel, meanwhile, input controls submodule 513 and controls submodule 513 in input Control under the control of end G1, and output multiplexing control module 52 is in output multiplexing control module 52 Control end J1 control under so that input control submodule 513, second nozzle drive submodule Block 512, Multiplexing module 53 and output multiplexing control module 52 constitute loop, thus by second Nozzle drives submodule 512 to drive second nozzle to be held open state with to in-cylinder injection fuel, I.e. in cylinder, spray the first fuel and the second fuel with dual fuel mode.

When central contact F0 selectivity and second selects contact F2 to connect, input controls submodule Block 513 is under the control of the control end G1 of input control submodule 513, and output controls submodule Block 514 is under the control of the control end H1 of output control submodule 514 so that input controls son Module 513, second nozzle drive submodule 512 and output control submodule 514 to constitute loop, Thus drive submodule 512 to drive second nozzle to be held open state with to gas by second nozzle Cylinder injection fuel, i.e. sprays the second fuel with pure second fuel mode in cylinder.

It should be noted that the dual fuel nozzle drive circuit that the embodiment of the present invention provides can be fitted For including the electromotor of 1-3 cylinder.Concrete, in order to avoid the situation of oil spout phase coincidence Occurring, the dual fuel nozzle drive circuit that the embodiment of the present invention provides is corresponding for a cylinder The control of dual fuel nozzle, i.e. first jet and second nozzle.Concrete, when being used for including one During the electromotor of individual cylinder, the dual fuel nozzle drive circuit that the embodiment of the present invention provides can be used Control in dual fuel nozzle corresponding to this cylinder；When for including the electromotor of two cylinders, The dual fuel nozzle drive circuit that the embodiment of the present invention provides may be used in two cylinders The control of the dual fuel nozzle that cylinder is corresponding, it is possible to by using another dual fuel nozzle to drive The control of the dual fuel nozzle that dynamic circuit realiration is corresponding to another cylinder；When being used for including three During the electromotor of cylinder, the dual fuel nozzle drive circuit that the embodiment of the present invention provides may be used for The control of the dual fuel nozzle that cylinder in addition to two cylinders of igniting non-conterminous in three cylinders is corresponding System.Wherein, when for including the electromotor of two or three cylinders, respectively organize cylinder (when with In time including the electromotor of two cylinders, each cylinder is one group；When being used for including three cylinders Electromotor time, two cylinders of non-conterminous igniting are one group, and remaining cylinder is one group) right The dual fuel nozzle answered can be under the control of respective dual fuel nozzle drive circuit, it is possible to achieve The dual fuel nozzle that each group cylinder is corresponding is in different jet modes, so in pattern switching During, it is ensured that reliability during pattern switching and the stationarity of moment of torsion output.

In embodiments of the present invention, further, when first jet is for in-cylinder injection bavin During oil, for improving response speed when first jet is opened, high pressure is used to be pulled open by first jet, As shown in Figure 4, the dual fuel nozzle drive circuit that the embodiment of the present invention provides can also include: Input total control module 54.

Wherein, the first end of input total control module 54 is connected with power supply, inputs total control module Second end of 54 drives the first end of submodule 511 to be connected with first jet.

Input total control module 54 input total control module 54 control end K1 control under, And output control submodule 514 is under the control of the control end H1 of output control submodule 514, Make to input total control module 54, first jet drives submodule 511 and output controls submodule 514 constitute loops, thus by first jet drive submodule 511 drive first jet open with To in-cylinder injection fuel.

In embodiments of the present invention, further alternative, first jet driving submodule 511 is The drive circuit of first jet.

Second nozzle drives submodule 512 to be the drive circuit of second nozzle.

It is the 4th transistor that input controls submodule 513, and wherein, the grid of the 4th transistor is Input controls the control end G1 of submodule 513, and the first of the 4th transistor extremely inputs control First end of module 513, the second of the 4th transistor extremely inputs and controls the of submodule 513 Two ends.

It is the 5th transistor that output controls submodule 514, and wherein, the grid of the 5th transistor is Output controls the control end H1 of submodule 514, and the first of the 5th transistor extremely exports control First end of module 514, the second of the 5th transistor extremely exports and controls the of submodule 514 Two ends.

Selecting submodule 515 is single-pole double-throw switch (SPDT).

Output multiplexing control module 52 is the 6th transistor, and wherein, the grid of the 6th transistor is The control end J1 of output multiplexing control module 52, the first of the 6th transistor extremely exports multiplexing control First end of molding block 52, the second of the 6th transistor extremely exports multiplexing control module 52 Second end.

Multiplexing module 53 at least includes first diode.

In embodiments of the present invention, further, input total control module 54 is the 7th transistor, Wherein, the grid of the 7th transistor is the control end K1 of input total control module 54, and the 7th is brilliant The first of body pipe extremely inputs the first end of total control module 54, and the second of the 7th transistor is extremely Second end of input total control module 54.

It should be noted that the concrete description of each module that the embodiment of the present invention includes, can With the specific descriptions of respective modules in reference present invention embodiment as depicted in figs. 1 and 2, this This is no longer going to repeat them for inventive embodiments.

The dual fuel nozzle drive circuit that the present invention provides, uses and comprises first jet driving submodule Block, second nozzle drive submodule, input to control submodule, output controls submodule and selection First jet and second nozzle are controlled by a set of drive circuit of submodule, i.e. by using A set of drive circuit achieves the control to dual fuel nozzle, reduce system hardware cost and The volume of controller, and improve reliability and the Electro Magnetic Compatibility of system, it is also possible to reduce The scale of drive circuit, saves the resource of main control chip.Further, by nozzle is driven module Second nozzle drive second end of submodule by Multiplexing module and output multiplexing control module First end connects, and i.e. meets double fuel blending by the multiplexing of output multiplexing control module and burns Demand, and also be possible to prevent the appearance of false triggering phenomenon.

Further, when for including the electromotor of two or three cylinders, pattern switching is being carried out Time, different jet modes can be in by controlling each group of dual fuel nozzle corresponding to cylinder, The reliability during switching of raising pattern and the stationarity of moment of torsion output.And double combustions that the present invention provides Material nozzle drive circuit is applicable to gasoline premix, diesel oil compression-ignition engine.

For the ease of the understanding of those skilled in the art, the present invention passes through following example to this The dual fuel nozzle drive circuit of bright offer is illustrated.

The embodiment of the present invention three provides a kind of dual fuel nozzle drive circuit, and such as, double fuel is Gasoline and diesel oil, concrete first jet is for spraying diesel oil in cylinder, and second nozzle is used for To in-cylinder injection gasoline, it addition, the double fuel drive circuit that the embodiment of the present invention provides is used for Including the electromotor of four cylinders, and assume that four cylinders included are respectively cylinder 1, cylinder 2, cylinder 3, cylinder 4, and the ignition order of four cylinders are: cylinder 1 cylinder 3 cylinder 4 cylinders 2, in order to avoid the situation of oil spout phase coincidence occurs, can be by cylinder 1 and cylinder 4 are divided into one group, and cylinder 2 and cylinder 3 are divided into one group, now, use two present invention to provide Dual fuel nozzle drive circuit, can be respectively to cylinder 1 and the dual fuel nozzle of cylinder 4 correspondence It is controlled, and the dual fuel nozzle of cylinder 2 and cylinder 3 is controlled.Herein, with right The double fuel spray group drive circuit that the dual fuel nozzle of cylinder 1 and cylinder 4 correspondence is controlled is Example is specifically introduced.

Wherein, as it is shown in figure 5, the dual fuel nozzle of cylinder 1 and cylinder 4 correspondence is controlled The double fuel spray group drive circuit of system includes that first order nozzle drives module, second level nozzle to drive Module, two Multiplexing modules, input total control modules and control two switch controllers.With two Multiplexing module is diode N1 and diode N2, input total control module be transistor Q1, one Control as a example by two switch controllers are P1, in first order nozzle drives module, drive with first jet Mover module is inductance L1, and second nozzle drives submodule to be inductance L2, and input controls submodule Being transistor Q3 for transistor Q2, output control submodule, selecting submodule is that single-pole double throw is opened Close M1, including selecting contact 1 and selecting contact 2, as a example by anti-return submodule is N3, Second level nozzle drives in module, drives submodule for inductance L3, second nozzle with first jet Driving submodule is inductance L4, and input controls submodule and is transistor Q4, exports control submodule For transistor Q5, selecting submodule is single-pole double-throw switch (SPDT) M2, including selecting contact 1 and choosing Select contact 2, as a example by anti-return submodule is N4.

Wherein, Q1 is the high-end main switch of diesel oil high pressure, and Q2, Q4 are low pressure high-end switch, Q3, Q5 are low-end switch.

Concrete, the first jet of cylinder 1 correspondence and the first jet of cylinder 4 correspondence use Q1 Being uniformly controlled and carry out high pressure and pull open, control two switch controller P1 can directly control single-pole double throw Switch M1 and the conducting direction of single-pole double-throw switch (SPDT) M2.Wherein, two switch controllers are controlled when one When the switch control terminal of P1 does not enables, the central contact of single-pole double-throw switch (SPDT) M1 and single-pole double throw The selection contact 1 of switch M1 connects, simultaneously the central contact of single-pole double-throw switch (SPDT) M2 and hilted broadsword The selection contact 1 of commutator M2 connects；On-off control as control two switch controller P1 When end enables, the central contact of single-pole double-throw switch (SPDT) M1 is tactile with the selection of single-pole double-throw switch (SPDT) M1 Point 2 connection, the simultaneously central contact of single-pole double-throw switch (SPDT) M2 and the choosing of single-pole double-throw switch (SPDT) M2 Select contact 2 to connect.

Central contact and the selection contact 1 of single-pole double-throw switch (SPDT) M1 at single-pole double-throw switch (SPDT) M1 Connection, the central contact of single-pole double-throw switch (SPDT) M2 is touched with the selection of single-pole double-throw switch (SPDT) M2 simultaneously During point 1 connection, drive as a example by module by first order nozzle, in peak value (Peek) stage, can By controlling Q1 and Q3 conducting, to control Q2, Q4 and Q5 cut-off so that first jet Quickly can be pulled open by the electric current that high pressure produces, to spray diesel oil to cylinder 1, wherein, by Being in cut-off state in Q4 and Q5, and N1 is also at cut-off state, now, the second level is sprayed Mouth drives the first jet of module to be opened by mistake.Then holding is switched to by the Peek stage (Hold) stage, now can turn on by controlling Q2 and Q3, control Q1, Q4 and Q5 Cut-off so that first jet can be held open state by the electric current that low pressure produces, with to gas Cylinder 1 sprays diesel oil, and wherein, also due to Q4 and Q5 is in cut-off state, and N1 also locates In cut-off state, now, second level nozzle drives the first jet of module to be opened by mistake, So, just diesel oil can be sprayed in cylinder 1 with pure diesel fuel mode.

Certainly, drive module to control second level nozzle by second level nozzle and drive the first of module The process that nozzle sprays diesel oil to cylinder 4 drives module to control the first order with by first order nozzle The process that nozzle drives the first jet of module to spray diesel oil to cylinder 1 is similar to, and the present invention implements In this not go into detail for example.

Central contact and the selection contact 2 of single-pole double-throw switch (SPDT) M1 at single-pole double-throw switch (SPDT) M1 Connection, the central contact of single-pole double-throw switch (SPDT) M2 is touched with the selection of single-pole double-throw switch (SPDT) M2 simultaneously During point 2 connection, drive as a example by module by first order nozzle, can lead by controlling Q2 and Q3 Logical, control Q1, Q4 and Q5 cut-off so that the electric current that second nozzle can be produced by low pressure It is held open state, with to cylinder 1 injected petrol, wherein, although now N1 is on shape State, but owing to Q4 and Q5 is in cut-off state, loop will not be formed, now, the second level is sprayed Mouth drives the second nozzle of module to be opened by mistake, so, and just can be with pure gasoline mode to gas Injected petrol in cylinder 1.

Certainly, drive module to control second level nozzle by second level nozzle and drive the second of module Nozzle drives module to control the first order to the process of cylinder 4 injected petrol with by first order nozzle Nozzle drives the second nozzle of module to be similar to the process of cylinder 1 injected petrol, and the present invention implements In this not go into detail for example.

Central contact and the selection contact 1 of single-pole double-throw switch (SPDT) M1 at single-pole double-throw switch (SPDT) M1 Connection, the central contact of single-pole double-throw switch (SPDT) M2 is touched with the selection of single-pole double-throw switch (SPDT) M2 simultaneously During point 1 connection, drive as a example by module by first order nozzle, in the Peek stage, can be by control Q1 and Q3 processed turns on, and controls Q2, Q4 and Q5 cut-off so that first jet can pass through The electric current that high pressure produces quickly pulls open, to spray diesel oil to cylinder 1, wherein, due to Q4 and Q5 is in cut-off state, and N1 is also at cut-off state, and now, second level nozzle drives mould The first jet of block will not be opened by mistake.Then the Hold stage is switched to by the Peek stage, this Time can by control Q2 and Q3 turn on, control Q1, Q4 and Q5 cut-off so that first Nozzle can be held open state by the electric current that low pressure produces, to spray diesel oil to cylinder 1, Wherein, also due to Q4 and Q5 is in cut-off state, and N1 is also at cut-off state, this Time, second level nozzle drives the first jet of module to be opened by mistake.Further, need at the same time Q5 can be controlled while controlling Q2 and Q3 conducting when cylinder 1 injected petrol Conducting, now Q2, N1 and Q5 constitute loop, just so that second nozzle is produced by low pressure Raw electric current is held open state, with to cylinder 1 injected petrol, so, and just can be with double fuel Pattern sprays diesel oil and gasoline in cylinder 1.

Further, in order to avoid second level nozzle drives the first jet of module to be opened by mistake, need to close Reason controls gasoline and the time for spraying of diesel oil, i.e. needs to prevent Q1 and Q5 from opening simultaneously, wherein, Vapour i.e. can be carried out before diesel oil sprays in advance in the way of using petrol and diesel oil injection phase alternating spray Oil spurts, or after diesel oil sprays in advance, before main jet, carry out gasoline injection.And in whole control During system, owing to Q4 is constantly in cut-off state, so, it is also possible to avoid second level nozzle The situation driving the second nozzle of module by mistake to be opened occurs.

Certainly, drive module to control second level nozzle by second level nozzle and drive the first of module Nozzle and second nozzle spray the process of diesel oil and gasoline to cylinder 4, and by first order nozzle Driving module to control first order nozzle drives the first jet of module and second nozzle to spray to cylinder 1 Penetrating diesel oil similar with the process of gasoline, in this not go into detail for the embodiment of the present invention.

Further, can by by cylinder 1 and the dual fuel nozzle of cylinder 4 correspondence, and The dual fuel nozzle of cylinder 2 and cylinder 3 correspondence controls to being under different jet modes, e.g., The dual fuel nozzle of cylinder 1 and cylinder 4 correspondence is in pure diesel fuel mode, cylinder 2 and cylinder 3 Corresponding dual fuel nozzle is in dual fuel mode, and so can ensure that when pattern switches is reliable Property and moment of torsion output stationarity.

Further, the switching inertia caused due to the mechanical realization of single-pole double-throw switch (SPDT), pure Have certain hysteresis when gasoline mode and the switching of pure diesel fuel mode to process, particularly by pure diesel oil Pattern switches to pure gasoline mode, in order to avoid the generation of this kind of situation, can first pass through multiplexing Next stage nozzle drives the output of module to control submodule, i.e. Q5, drives second nozzle to cylinder Interior injected petrol, switches to pure gasoline mode by pure diesel fuel mode after reaching hysteresis condition the most completely.

The embodiment of the present invention four provides a kind of dual fuel nozzle drive circuit, and such as, double fuel is Gasoline and diesel oil, concrete first jet is for spraying diesel oil in cylinder, and second nozzle is used for To in-cylinder injection gasoline, it addition, the double fuel drive circuit that the embodiment of the present invention provides is used for Electromotor including a cylinder.

Wherein, as shown in Figure 6, the double fuel spray that the dual fuel nozzle that cylinder is corresponding is controlled Group drive circuit includes that nozzle drives module, Multiplexing module, input total control module and output multiple Use control module.With Multiplexing module be diode N3, input total control module be transistor Q6, As a example by output multiplexing control module Q7, in nozzle drives module, drive submodule with first jet Block is inductance L5, and second nozzle drives submodule to be inductance L6, and it is crystal that input controls submodule Pipe Q8, output control submodule are transistor Q9, and selecting submodule is single-pole double-throw switch (SPDT) M3, As a example by selecting contact 1 and selecting contact 2.

Wherein, Q6 is the high-end main switch of diesel oil high pressure, and Q8 is low pressure high-end switch, Q7, Q9 It is low-end switch.Concrete, first jet uses Q6 to control to carry out high pressure and pulls open.

Central contact and the selection contact 1 of single-pole double-throw switch (SPDT) M3 at single-pole double-throw switch (SPDT) M3 During connection, in the Peek stage, can turn on by controlling Q6 and Q9, control Q7 and Q8 Cut-off so that first jet quickly can be pulled open by the electric current that high pressure produces, to spray to cylinder Penetrate diesel oil.Then switched to the Hold stage by the Peek stage, now can by control Q8 and Q9 turns on, and controls Q6 and Q7 cut-off so that the electric current that first jet can be produced by low pressure It is held open state, with to cylinder injection diesel oil, so, just can be with pure diesel fuel mode to cylinder Interior injection diesel oil.

Central contact and the selection contact 2 of single-pole double-throw switch (SPDT) M3 at single-pole double-throw switch (SPDT) M3 During connection, can turn on by controlling Q8 and Q9, control Q6 and Q7 cut-off so that second Nozzle can be held open state by the electric current that low pressure produces, with to cylinder 1 injected petrol, So, just can be with pure gasoline mode to in-cylinder injection gasoline.

Central contact and the selection contact 1 of single-pole double-throw switch (SPDT) M3 at single-pole double-throw switch (SPDT) M3 During connection, in the Peek stage, can turn on by controlling Q6 and Q9, control Q7 and Q8 Cut-off so that first jet quickly can be pulled open by the electric current that high pressure produces, to spray to cylinder Penetrate diesel oil.Then switched to the Hold stage by the Peek stage, now can by control Q8 and Q9 turns on, and controls Q6 and Q7 cut-off so that the electric current that first jet can be produced by low pressure It is held open state, to spray diesel oil to cylinder 1.Further, need at the same time to cylinder injection During gasoline, can control Q8 and Q9 conducting while, control Q7 conducting, now Q8, N3 and Q7 constitutes loop, just so that second nozzle keeps opening by the electric current that low pressure produces Open state, with to cylinder injection gasoline, so, just can be with dual fuel mode to in-cylinder injection Diesel oil and gasoline.

Further, the switching inertia caused due to the mechanical realization of single-pole double-throw switch (SPDT), pure Have certain hysteresis when gasoline mode and the switching of pure diesel fuel mode to process, particularly by pure diesel oil Pattern switches to pure gasoline mode, in order to avoid the generation of this kind of situation, can first pass through output Multiplexing control module Q7, driving second nozzle is to in-cylinder injection gasoline, after reaching hysteresis condition The purest diesel fuel mode is switched to pure gasoline mode.

The embodiment of the present invention five provides the dual fuel nozzle shown in a kind of Fig. 1 of being applicable to and Fig. 2 to drive The control method on galvanic electricity road, as it is shown in fig. 7, comprises:

601, control centre contact selects contact to be connected with first, controls submodule by input Controlling end, the first end controlling input control submodule is led with the second end that input controls submodule Logical, and by the control end of output control submodule, control output and control the first end of submodule With the second end conducting that output controls submodule so that input controls submodule, first jet drives Mover module and output control submodule and constitute loop, thus drive submodule by first jet First jet is driven to be held open state with to in-cylinder injection fuel；Submodule is controlled by input The control end of block, the first end and the input that control input control submodule control the second of submodule End conducting, and drive the output of module to control the control end of submodule, control by next stage nozzle The next stage nozzle that controls of system drives the output of module to control the first end and the next stage spray of submodule The output of mouth driving module controls the second end conducting of submodule so that input control submodule, Second nozzle drives submodule, Multiplexing module and next stage nozzle to drive the output of module to control son Module composition loop, thus drive submodule to drive second nozzle to be held open by second nozzle State is with to in-cylinder injection fuel.

602, control centre contact selects contact to be connected with second, controls submodule by input Controlling end, the first end controlling input control submodule is led with the second end that input controls submodule Logical, and by the control end of output control submodule, control output and control the first end of submodule With the second end conducting that output controls submodule so that input controls submodule, second nozzle drives Mover module and output control submodule and constitute loop, thus drive submodule by second nozzle Second nozzle is driven to be held open state with to in-cylinder injection fuel.

In embodiments of the present invention, further, when first jet is for in-cylinder injection bavin Oil, dual fuel nozzle drive circuit also includes inputting total control module, and nozzle drives module also to wrap When including anti-return submodule, the control method of this dual fuel nozzle drive circuit can also include:

603, by inputting the control end of total control module, the first of input total control module is controlled End and the second end conducting of input total control module, and the control end of submodule is controlled by output, Control output control the first end of submodule and export the second end conducting controlling submodule so that Input total control module, first jet drive submodule and output to control submodule composition loop, Thus drive submodule to drive first jet to open to fire to in-cylinder injection by first jet Material.

In embodiments of the present invention, further, one is also included when dual fuel nozzle drive circuit During control N switch controller, the control method of this dual fuel nozzle drive circuit can also include:

604, by the switch control terminal of a control N switch controller, control every grade of nozzle and drive mould The central contact selectivity selecting submodule of block selects contact or choosing with select submodule first The the second selection contact selecting submodule connects.

The control method of dual fuel nozzle drive circuit that the present invention provides, comprises the by employing One nozzle drives submodule, second nozzle to drive submodule, input to control submodule, output control First jet and second nozzle are controlled by a set of drive circuit of system module and selection submodule System, i.e. by using a set of drive circuit to achieve the control to dual fuel nozzle, reduces and is The hardware cost of system and the volume of controller, and improve reliability and the electromagnetic compatibility of system Property, it is also possible to reduce the scale of drive circuit, save the resource of main control chip.Further, pass through Every first order jet nozzle in addition to driving module except afterbody nozzle drives the second nozzle of module to drive Second end of submodule drives the output of module to control by a Multiplexing module and next stage nozzle First end of submodule connects, and afterbody nozzle drives the second nozzle of module drive son Second end of module drives the output of module to control son by a Multiplexing module and first order nozzle First end of module connects, and i.e. meets double fuel blending by the multiplexing of output control submodule The demand of burning, and also it is possible to prevent the appearance of false triggering phenomenon.

Further, when carrying out pattern switching, can be by controlling double fuel corresponding to each group of cylinder Nozzle is in different jet modes, reliability when improving pattern switching and moment of torsion output flat Stability.And the dual fuel nozzle drive circuit that the present invention provides is applicable to gasoline premix, diesel oil pressure Burn engine.

The embodiment of the present invention six provides the dual fuel nozzle shown in a kind of Fig. 3 of being applicable to and Fig. 4 to drive The control method on galvanic electricity road, as shown in Figure 8, including:

701, control centre contact selects contact to be connected with first, controls submodule by input Controlling end, the first end controlling input control submodule is led with the second end that input controls submodule Logical, and by the control end of output control submodule, control output and control the first end of submodule With the second end conducting that output controls submodule so that input controls submodule, first jet drives Mover module and output control submodule and constitute loop, thus drive submodule by first jet First jet is driven to be held open state with to in-cylinder injection fuel；Submodule is controlled by input The control end of block, the first end and the input that control input control submodule control the second of submodule End conducting, and by exporting the control end of multiplexing control module, control output multiplexing control module The first end and output multiplexing control module second end conducting so that input control submodule, Second nozzle drives submodule, Multiplexing module and output multiplexing control module to constitute loop, thus Submodule is driven to drive second nozzle to be held open state with to in-cylinder injection by second nozzle Fuel.

702, control centre contact selects contact to be connected with second, controls submodule by input Controlling end, the first end controlling input control submodule is led with the second end that input controls submodule Logical, and by the control end of output control submodule, control output and control the first end of submodule With the second end conducting that output controls submodule so that input controls submodule, second nozzle drives Mover module and output control submodule and constitute loop, thus drive submodule by second nozzle Second nozzle is driven to be held open state with to in-cylinder injection fuel.

In embodiments of the present invention, further, when first jet is for in-cylinder injection bavin Oil, when dual fuel nozzle drive circuit also includes inputting total control module, this dual fuel nozzle drives The control method on galvanic electricity road can also include:

703, by inputting the control end of total control module, the first of input total control module is controlled End and the second end conducting of input total control module, and the control end of submodule is controlled by output, Control output control the first end of submodule and export the second end conducting controlling submodule so that Input total control module, first jet drive submodule and output to control submodule composition loop, Thus drive submodule to drive first jet to open to fire to in-cylinder injection by first jet Material.

The control method of dual fuel nozzle drive circuit that the present invention provides, comprises the by employing One nozzle drives submodule, second nozzle to drive submodule, input to control submodule, output control First jet and second nozzle are controlled by a set of drive circuit of system module and selection submodule System, i.e. by using a set of drive circuit to achieve the control to dual fuel nozzle, reduces and is The hardware cost of system and the volume of controller, and improve reliability and the electromagnetic compatibility of system Property, it is also possible to reduce the scale of drive circuit, save the resource of main control chip.Further, pass through The second nozzle that nozzle drives module drives the second end of submodule by Multiplexing module and output First end of multiplexing control module connects, and is i.e. met by the multiplexing of output multiplexing control module The demand of double fuel blending burning, and also it is possible to prevent the appearance of false triggering phenomenon.

Further, when for including the electromotor of two or three cylinders, pattern switching is being carried out Time, different jet modes can be in by controlling each group of dual fuel nozzle corresponding to cylinder, The reliability during switching of raising pattern and the stationarity of moment of torsion output.And double combustions that the present invention provides Material nozzle drive circuit is applicable to gasoline premix, diesel oil compression-ignition engine.

Through the above description of the embodiments, those skilled in the art can be clearly Solution arrives, and for convenience and simplicity of description, only carries out illustrating with the division of above-mentioned each functional module Bright, in actual application, can as desired above-mentioned functions be distributed by different functional modules Complete, the internal structure of device will be divided into different functional modules, to complete above description All or part of function.The specific works process of the device of foregoing description, before being referred to State the corresponding process in embodiment of the method, do not repeat them here.

In several embodiments provided herein, it should be understood that disclosed device and Method, can realize by another way.Such as, device embodiment described above is only It is only illustrative, such as, described module or the division of unit, it is only a kind of logic function Dividing, actual can have other dividing mode when realizing, and the most multiple unit or assembly are permissible In conjunction with or be desirably integrated into another device, or some features can be ignored, or does not performs.

It addition, each functional unit in each embodiment of the present invention can be integrated in a process In unit, it is also possible to be that unit is individually physically present, it is also possible to two or more are single Unit is integrated in a unit.Above-mentioned integrated unit both can realize to use the form of hardware, The form that can also use SFU software functional unit realizes.

If described integrated unit realizes and as independent product using the form of SFU software functional unit When product are sold or use, can be stored in a read/write memory medium.Based on such reason Solve, part that prior art is contributed by technical scheme the most in other words or Completely or partially can embodying with the form of software product of this technical scheme, this software produces Product are stored in a storage medium, including some instructions with so that an equipment (can be Single-chip microcomputer, chip etc.) or processor (processor) perform side described in each embodiment of the present invention All or part of step of method.And aforesaid storage medium includes: USB flash disk, portable hard drive, only Read memorizer (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), the various media that can store program code such as magnetic disc or CD.

The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is also Being not limited to this, any those familiar with the art is at the technology model that the invention discloses In enclosing, change can be readily occurred in or replace, all should contain within protection scope of the present invention. Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.

Claims (10)

1. a dual fuel nozzle drive circuit, it is characterised in that including: M level nozzle drives Module and M Multiplexing module, described M >=2；

Wherein, described nozzle driving module includes that first jet drives submodule, second nozzle to drive Mover module, input control submodule, output controls submodule and select submodule；

The first end that described input controls submodule is connected with power supply, and described input controls submodule The second end and described first jet drive the first end of submodule to be connected, described input controls sub Second end of module also drives the first end of submodule to be connected with described second nozzle, and described first Nozzle drives the second end of submodule to be connected with the first selection contact of described selection submodule, institute Stating second nozzle drives the second end of submodule to connect with the second selection contact of described selection submodule Connecing, the first end that the central contact of described selection submodule controls submodule with described output is connected, Described output controls the second end ground connection of submodule, described central contact selectivity and described first Contact or described second is selected to select contact to connect；

Except nozzle described in afterbody drives in addition to module, nozzle described in every one-level drives the of module Two nozzles drive the second end of submodule to spray with described in next stage also by a described Multiplexing module The first end that mouth drives the output of module to control submodule connects, and described in afterbody, nozzle drives The second nozzle of module drives the second end of submodule also by a described Multiplexing module and first The first end that the described nozzle of level drives the output of module to control submodule connects；

When described central contact selectivity selects contact to be connected with described first, described input control System module is under the control controlling end that described input controls submodule, and described output controls Submodule is under the control controlling end that described output controls submodule so that described input controls Submodule, described first jet drive submodule and described output to control submodule composition loop, Thus drive submodule to drive first jet to be held open state with to gas by described first jet Cylinder injection fuel；Described input controls submodule and controls the control end of submodule in described input Control under, and described in next stage nozzle drive module output control submodule in next stage institute Stating nozzle drives the output of module to control under the control controlling end of submodule so that described input Control submodule, described second nozzle drives described in submodule, described Multiplexing module and next stage Nozzle drives the output of module to control submodule composition loop, thus is driven by described second nozzle Mover module drive second nozzle is held open state with to described in-cylinder injection fuel；

When described central contact selectivity selects contact to be connected with described second, described input control System module is under the control controlling end that described input controls submodule, and described output controls Submodule is under the control controlling end that described output controls submodule so that described input controls Submodule, described second nozzle drive submodule and described output to control submodule composition loop, Thus by described second nozzle drive submodule drive described second nozzle be held open state with To described in-cylinder injection fuel.

Dual fuel nozzle drive circuit the most according to claim 1, it is characterised in that institute State first jet for described in-cylinder injection diesel oil；

Described dual fuel nozzle drive circuit also includes: input total control module；Described nozzle drives Dynamic model block also includes: is arranged at described input and controls submodule and described first jet driving submodule Anti-return submodule between block；

First end of described input total control module is connected with power supply, described input total control module The second end drive the first jet of module to drive the first end of submodule even with every grade of described nozzle Connect；

Described input total control module described input total control module control end control under, And described output control submodule described output control submodule control end control under, make Obtain described input total control module, described first jet drives submodule and described output controls son Module composition loop, thus drive submodule to drive described first jet by described first jet Open with to described in-cylinder injection fuel.

Dual fuel nozzle drive circuit the most according to claim 1, it is characterised in that institute State dual fuel nozzle drive circuit also to include: a control N switch controller, wherein, N=M；

A described control N switch controller includes a switch control terminal；

Under the control of described one switch control terminal controlling N switch controller, every grade of described nozzle Drive module selects the central contact selectivity of submodule and the first choosing of described selection submodule The the second selection contact selecting contact or described selection submodule connects.

4., according to the dual fuel nozzle drive circuit according to any one of claim 1-3, it is special Levy and be,

The drive circuit that described first jet drives submodule to be described first jet；

The drive circuit that described second nozzle drives submodule to be described second nozzle；

It is the first transistor that described input controls submodule, wherein, and the grid of described the first transistor The most described input controls the control end of submodule, and the first of described the first transistor is extremely described Input controls the first end of submodule, and the second the most described input of described the first transistor controls Second end of submodule；

It is transistor seconds that described output controls submodule, wherein, and the grid of described transistor seconds The most described output controls the control end of submodule, and the first of described transistor seconds is extremely described Output controls the first end of submodule, and the second the most described output of described transistor seconds controls Second end of submodule；

Described selection submodule is single-pole double-throw switch (SPDT)；

Described Multiplexing module at least includes first diode.

Dual fuel nozzle drive circuit the most according to claim 2, it is characterised in that

Described input total control module is third transistor, wherein, and the grid of described third transistor The control end of the most described input total control module, the first of described third transistor is extremely described First end of input total control module, the second the most described input master control of described third transistor Second end of molding block；

Described anti-return submodule at least includes second diode.

6. a dual fuel nozzle drive circuit, it is characterised in that including: nozzle driving module, Output multiplexing control module and Multiplexing module；

Wherein, described nozzle driving module includes that first jet drives submodule, second nozzle to drive Mover module, input control submodule, output controls submodule and select submodule；

The first end that described input controls submodule is connected with power supply, and described input controls submodule The second end and described first jet drive the first end of submodule to be connected, described input controls sub Second end of module also drives the first end of submodule to be connected with described second nozzle, and described first Nozzle drives the second end of submodule to be connected with the first selection contact of described selection submodule, institute Stating second nozzle drives the second end of submodule to connect with the second selection contact of described selection submodule Connecing, the first end that the central contact of described selection submodule controls submodule with described output is connected, Described output controls the second end ground connection of submodule, and described second nozzle drives the second of submodule The first end also by described Multiplexing module with described output multiplexing control module is held to be connected, described Second end ground connection of output multiplexing control module, described central contact selectivity and described first choosing Selecting contact or described second selects contact to connect；

When described central contact selectivity selects contact to be connected with described first, described input control System module is under the control controlling end that described input controls submodule, and described output controls Submodule is under the control controlling end that described output controls submodule so that described input controls Submodule, described first jet drive submodule and described output to control submodule composition loop, Thus drive submodule to drive first jet to be held open state with to gas by described first jet Cylinder injection fuel；Described input controls submodule and controls the control end of submodule in described input Control under, and described output multiplexing control module is in the control of described output multiplexing control module Under the control of end so that described input controls submodule, described second nozzle drives submodule, Described Multiplexing module and described output multiplexing control module constitute loop, thus by described second Nozzle drives submodule to drive second nozzle to be held open state to fire to described in-cylinder injection Material；

When described central contact selectivity selects contact to be connected with described second, described input control System module is under the control controlling end that described input controls submodule, and described output controls Submodule is under the control controlling end that described output controls submodule so that described input controls Submodule, described second nozzle drive submodule and described output to control submodule composition loop, Thus by described second nozzle drive submodule drive described second nozzle be held open state with To described in-cylinder injection fuel.

Dual fuel nozzle drive circuit the most according to claim 6, it is characterised in that institute State first jet for described in-cylinder injection diesel oil；

Described dual fuel nozzle drive circuit also includes: input total control module；

First end of described input total control module is connected with power supply, described input total control module The second end and described first jet drive the first end of submodule to be connected；

Described input total control module described input total control module control end control under, And described output control submodule described output control submodule control end control under, make Obtain described input total control module, described first jet drives submodule and described output controls son Module composition loop, thus drive submodule to drive described first jet by described first jet Open with to described in-cylinder injection fuel.

8. the dual fuel nozzle drive circuit that a kind is applied to described in any one of claim 1-5 Control method, it is characterised in that including:

Controlling described central contact selects contact to be connected with described first, is controlled by described input The control end of submodule, controls described input and controls the first end and the described input control of submodule Second end conducting of submodule, and the control end of submodule is controlled by described output, control institute State output and control the first end of submodule and the second end conducting of described output control submodule, make Obtain described input control submodule, described first jet drives submodule and described output control sub Module composition loop, thus drive submodule to drive described first jet by described first jet The state that is held open is with to described in-cylinder injection fuel；Submodule is controlled by described input Controlling end, the first end and the described input that control described input control submodule control submodule Second end conducting, and drive the output of module to control the control of submodule by nozzle described in next stage End processed, the nozzle described in next stage that controls of control drives the output of module to control the first of submodule Nozzle described in end and next stage drives the output of module to control the second end conducting of submodule so that Described input control submodule, described second nozzle drive submodule, described Multiplexing module and under Nozzle described in one-level drives the output of module to control submodule to constitute loop, thus by described the Two nozzles drive submodule to drive described second nozzle to be held open state to spray in described cylinder Penetrate fuel；

Controlling described central contact selects contact to be connected with described second, is controlled by described input The control end of submodule, controls described input and controls the first end and the described input control of submodule Second end conducting of submodule, and the control end of submodule is controlled by described output, control institute State output and control the first end of submodule and the second end conducting of described output control submodule, make Obtain described input control submodule, described second nozzle drives submodule and described output control sub Module composition loop, thus drive submodule to drive described second nozzle by described second nozzle The state that is held open is with to described in-cylinder injection fuel.

Method the most according to claim 8, it is characterised in that when described first jet is used In to described in-cylinder injection diesel oil, described dual fuel nozzle drive circuit also includes inputting master control Molding block, when described nozzle drives module also to include anti-return submodule, described method also includes:

By the control end of described input total control module, control described input total control module First end and the second end conducting of described input total control module, and control son by described output The control end of module, controls described output and controls the first end and described output control of submodule Second end conducting of module so that described input total control module, described first jet drive son Module and described output control submodule and constitute loop, thus drive son by described first jet First jet described in module drive is opened with to described in-cylinder injection fuel.

10. the control of the dual fuel nozzle drive circuit that a kind is applied to described in claim 6 or 7 Method processed, it is characterised in that including:

Controlling described central contact selects contact to be connected with described first, is controlled by described input The control end of submodule, controls described input and controls the first end and the described input control of submodule Second end conducting of submodule, and the control end of submodule is controlled by described output, control institute State output and control the first end of submodule and the second end conducting of described output control submodule, make Obtain described input control submodule, described first jet drives submodule and described output control sub Module composition loop, thus drive submodule to drive described first jet by described first jet The state that is held open is with to described in-cylinder injection fuel；Submodule is controlled by described input Controlling end, the first end and the described input that control described input control submodule control submodule Second end conducting, and by the control end of described output multiplexing control module, control described output First end of multiplexing control module and the second end conducting of described output multiplexing control module so that Described input controls submodule, described second nozzle drives submodule, described Multiplexing module and institute State output multiplexing control module and constitute loop, thus drive submodule to drive by described second nozzle Dynamic described second nozzle is held open state with to described in-cylinder injection fuel；

Controlling described central contact selects contact to be connected with described second, is controlled by described input The control end of submodule, controls described input and controls the first end and the described input control of submodule Second end conducting of submodule, and the control end of submodule is controlled by described output, control institute State output and control the first end of submodule and the second end conducting of described output control submodule, make Obtain described input control submodule, described second nozzle drives submodule and described output control sub Module composition loop, thus drive submodule to drive described second nozzle by described second nozzle The state that is held open is with to described in-cylinder injection fuel.