CN106157787A - Vehicle fuel system failure analog and analogy method - Google Patents
Vehicle fuel system failure analog and analogy method Download PDFInfo
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- CN106157787A CN106157787A CN201510141823.0A CN201510141823A CN106157787A CN 106157787 A CN106157787 A CN 106157787A CN 201510141823 A CN201510141823 A CN 201510141823A CN 106157787 A CN106157787 A CN 106157787A
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Abstract
The present invention relates to vehicle failure analogue technique, particularly to vehicle fuel system failure analog and analogy method.Described analog includes fault parameter setting module, fuel injection signal receptor, computing module and signal output module.This analog is connected between engine electric-controlled unit and fuel injector by holding wire.Analog is according to the fault parameter information set, change engine electric-controlled unit and export to the fuel injection pulsewidth signal of fuel injector, thus realizing being increased or decreased the improper fuel-injected simulation of fuel injection amount to the engine cylinder quantification specified, the quickly exploitation for electromotor each cylinder fuel oil inhomogeneities fault and vehicle fuel system failure monitoring function provides effective electronic simulation means.
Description
Technical field
The present invention relates to vehicle failure analogue technique field, more particularly it relates to an automotive fuel oil system failure simulation device and analogy method.
Background technology
At present, the burning in the cylinder of automobile primary gasoline to be used is as power.Fuel oil burns in fuel injector sprays into each cylinder of electromotor.But, owing to automotive fuel oil system is overall or breaks down in local, such as oil-line plugging, fuel injector leakage etc., may be different to the amount of fuel of each cylinder injection of electromotor, i.e. some cylinder receive fuel oil is more and fuel oil that some cylinder receives is less etc., this combustion case of combustion mixture that will affect in each cylinder of electromotor so that the burning of each cylinder is uneven, and then cause vehicle discharge higher, the problems such as power performance deficiency, even vehicle stall.
In recent years, each big car manufactures will appreciate that problem above, and the method that attempts to look for is to improve problem above.A kind of trial is exploitation fuel oil inhomogeneities failure detector, and it uses ECU ECU (Electronic Controller
Unit) realize monitoring the function of fault, in order to guarantee that vehicle fuel system is in normal operating conditions.In the development process of these monitoring systems, need a kind of failure of fuel system analog that can simulate various vehicle Oil injection, and fuel oil failure simulation method badly.
Summary of the invention
Object of the present invention is to provide a kind of simple in construction, easy to assembly, the failure of fuel system analog of various failure of fuel system and a kind of fuel oil failure simulation method can be simulated.
For reaching object above, according to an aspect of the present invention, provide a kind of vehicle fuel system failure analog, wherein, described vehicle fuel system failure analog is arranged between engine electric-controlled unit and fuel injector, to change the fuel injection signal sent by described engine electric-controlled unit, and the fuel injection signal of change is delivered to described fuel injector.
In one embodiment, described device includes:
Fuel oil signal receiver, described fuel oil signal receiver couples with described engine electric-controlled unit, in order to accept the fuel injection signal sent by described ECU；
Fault parameter setting module, described fault parameter setting module can set and send simulation fault-signal；
Computing module, described oil spout computing module couples with described fuel oil signal receiver and described fault parameter setting module respectively, to receive described fuel injection signal and described simulated failure signal, described oil spout computing module calculates the fuel injection signal of described change according to described fuel injection signal and described simulated failure signal；
Signal output module, described signal output module couples with described computing module, in order to receives the fuel injection signal of described change, and sends it to fuel injector.
In one embodiment, described fuel injection signal includes: fuel injection pulsewidth signal and ejection cylinder number.
In one embodiment, described Oil injection signal includes: oil spout side-play amount, it is intended that Cylinder and electromotor oil spout order.
In one embodiment, described appointment Cylinder includes at least two cylinder.
In one embodiment, described oil spout side-play amount is in the scope of+100% to-100%.
According to a further aspect in the invention, it is provided that a kind of failure of fuel system analogy method, described method is included between engine electric-controlled unit and fuel injector and arranges any of the above fuel oil failure simulation device.
In one embodiment, said method comprising the steps of:
The fuel injection signal that ECU sends is received by fuel oil signal receiver；
Set and send simulation fault-signal by fault parameter setting module；
Received described fuel injection signal and described simulated failure signal by computing module, and calculate the fuel injection signal of change；
The fuel injection signal of described change is sent to fuel injection signal output module, in order to simulation fuel oil fault.
In one embodiment, described fuel injection signal includes: fuel injection pulsewidth signal and ejection cylinder number.
In one embodiment, described Oil injection signal includes: oil spout side-play amount, it is intended that Cylinder and electromotor oil spout order.
In one embodiment, described oil spout side-play amount is in the scope of+100% to-100%.
Failure of fuel system analog simple in construction according to the present invention, easy to assembly, various fuel system Oil injection can be simulated, such as, horizontal bar distributive value is bigger than normal, and multi-cylinder distributive value is bigger than normal, and horizontal bar distributive value is on the low side, and multi-cylinder distributive value is on the low side etc..
Failure of fuel system analogy method according to the present invention is easy to operate, can simulate various fuel system Oil injection, and the suitability is wide, is applicable to various analog development project.
Accompanying drawing explanation
With reference to accompanying drawing, the present invention above-mentioned and other feature will become clear from, wherein:
Fig. 1 shows vehicle according to the invention failure of fuel system analog framework map.
Detailed description of the invention:
Easy to understand, according to technical scheme, under not changing true spirit, one of ordinary skill in the art can be to propose various structures mode and the implementation that can mutually replace.Therefore, detailed description below and accompanying drawing are only the exemplary illustrations to technical scheme, and are not to be construed as the whole of the present invention or are considered as defining or limiting technical solution of the present invention.
The orientation terms such as the up, down, left, right, before and after mentioned in this manual or may mention, front, the back side, top, bottom are to be defined relative to the structure shown in each accompanying drawing, they are relative concepts, it is therefore possible to correspondingly can change according to diverse location, different use state residing for it.So, these or other orientation term should be construed to restricted term.
With reference to Fig. 1, illustrated therein is the vehicle fuel system failure analog 2 according to invention, described vehicle fuel system failure analog 2 is arranged between engine electric-controlled unit 1 and fuel injector 2, also can remove it after simulation completes.Engine electric-controlled unit 1 can send signal of fuel injection pulsewidth signal and the current ejection cylinder number of electromotor etc., vehicle fuel system failure analog 2 is according to the fault parameter information set, change engine electric-controlled unit 1 and export to the fuel injection pulsewidth signal etc. of fuel injector 3, thus realizing being increased or decreased the improper fuel-injected simulation of fuel injection amount to the engine cylinder quantification specified, the quickly exploitation for electromotor each cylinder fuel oil inhomogeneities fault and vehicle fuel system failure monitoring function provides effective electronic simulation means.In one embodiment, it is intended that engine cylinder can be single cylinder or multiple cylinder, thus can to simulate single cylinder distributive value higher for vehicle fuel system failure analog 2, multiple cylinder distributive values are higher, single cylinder distributive value is on the low side, and multiple cylinder distributive values are on the low side, etc. various faults situation.
In a preferred embodiment, vehicle fuel system failure analog 2 includes with lower module:
A) fuel oil signal receiver 21, described fuel oil signal receiver 21 couples with engine electric-controlled unit 1, in order to accept the correct fuel injection signal sent by described ECU 1；As described above, fuel injection signal can include fuel injection pulsewidth signal and the current ejection cylinder number of electromotor etc..
B) fault parameter setting module 22, described fault parameter setting module 22 can set and send simulation fault-signal；The major function of fault parameter setting module 22 is the setting each fault parameter of fuel system, including: fuel injection amount side-play amount, appointment fuel oil Cylinder, engine fuel injection order etc..Be appreciated that the common Oil injection of electromotor can be set by various signals simulate, such as, can simulated oil blockage, the distributive value change situation during fault such as fuel injector leakage.In one embodiment, fuel injection amount side-play amount is in the scope of+100% to-100%.In one embodiment, it is intended that fuel oil Cylinder can be single cylinder or multiple cylinder.It is contemplated that situations below, i.e., simulate two cylinders distributive value is normal distributive value 80% situation, the situation that i.e. the fuel feeding path of the two cylinder is partly blocked, also can simulate single cylinder distributive value is normal distributive value 130% situation, the situation that i.e. fuel injector of this cylinder has leaked.
C) computing module 23, described computing module 23 couples with described fuel oil signal receiver 21 and described fault parameter setting module 22 respectively, to receive described fuel injection signal and described simulated failure signal, described oil spout computing module calculates the fuel injection signal of described change according to described fuel injection signal and described simulated failure signal；The fuel injection signal of described change is the fault fuel injection pulsewidth of the simulation calculated and specifies Cylinder etc., and result of calculation is exported to signal output module 24 by described computing module 23.
D) signal output module 24, described signal output module 24 couples with described computing module 23, in order to receives the fuel injection signal of described change, and sends it to fuel injector 3, jointly realizes simulation with fuel injector 3 and specifies the distributive value injection work of Cylinder.
As it has been described above, vehicle according to the invention failure of fuel system analog 2 simple in construction, easy to assembly, various failure condition can be simulated, it is adaptable to use gasoline, the various vehicles of the fuel such as diesel oil.Can simulate single cylinder or multiple cylinder distributive value is on the high side or on the low side, side-play amount can be in the scope of+100% to-100% or in bigger scope.
Additionally, according to a further aspect in the invention, the present invention also aims to protect a kind of failure of fuel system analogy method, and described method is included between engine electric-controlled unit and fuel injector and arranges any of the above fuel oil failure simulation device.The method can realize being increased or decreased the improper fuel-injected simulation of fuel injection amount to the engine cylinder quantification specified, and the quickly exploitation for electromotor each cylinder fuel oil inhomogeneities fault and vehicle fuel system failure monitoring function provides effective electronic simulation means.
In one embodiment, the method comprises the following steps:
The fuel injection signal that ECU sends is received by fuel oil signal receiver；
Set and send simulation fault-signal by fault parameter setting module；
Received described fuel injection signal and described simulated failure signal by computing module, and calculate the fuel injection signal of change；
The fuel injection signal of described change is sent to fuel injection signal output module, in order to simulation fuel oil fault.
It should be appreciated that all above preferred embodiments are all illustrative and not restrictive, various remodeling or deformation that particular embodiments described above is made under the design of the present invention by those skilled in the art all should be in the legal scope of the present invention.
Claims (10)
1. a vehicle fuel system failure analog, it is characterized in that, described vehicle fuel system failure analog is arranged between engine electric-controlled unit and fuel injector, to change the fuel injection signal sent by described engine electric-controlled unit, and the fuel injection signal of change is delivered to described fuel injector.
Vehicle fuel system failure analog the most according to claim 1, it is characterised in that described device includes:
Fuel oil signal receiver, described fuel oil signal receiver couples with described engine electric-controlled unit, in order to accept the fuel injection signal sent by described engine electric-controlled unit；
Fault parameter setting module, described fault parameter setting module can set and send simulation fault-signal；
Computing module, described computing module couples with described fuel oil signal receiver and described fault parameter setting module respectively, to receive described fuel injection signal and described simulated failure signal, described oil spout computing module calculates the fuel injection signal of described change according to described fuel injection signal and described simulated failure signal；
Signal output module, described signal output module couples with described computing module, in order to receives the fuel injection signal of described change, and sends it to fuel injector.
Vehicle fuel system failure analog the most according to claim 2, it is characterised in that described fuel injection signal includes: fuel injection pulsewidth signal and ejection cylinder number.
Vehicle fuel system failure analog the most according to claim 2, it is characterised in that described Oil injection signal includes: oil spout side-play amount, it is intended that Cylinder and electromotor oil spout order.
Vehicle fuel system failure analog the most according to claim 4, it is characterised in that described oil spout side-play amount is in the scope of+100% to-100%.
6. a vehicle fuel system failure analogy method, it is characterised in that described method is included between engine electric-controlled unit and fuel injector the fuel oil failure simulation device arranged according to according to any one of claim 1-5.
Vehicle fuel system failure analogy method the most according to claim 6, it is characterised in that said method comprising the steps of:
The fuel injection signal that ECU sends is received by fuel oil signal receiver；
Set and send simulation fault-signal by fault parameter setting module；
Received described fuel injection signal and described simulated failure signal by computing module, and calculate the fuel injection signal of change；
The fuel injection signal of described change is sent to fuel injection signal output module, in order to simulation Oil injection.
Vehicle fuel system failure analogy method the most according to claim 7, it is characterised in that described fuel injection signal includes: fuel injection pulsewidth signal and ejection cylinder number.
Vehicle fuel system failure analogy method the most according to claim 7, it is characterised in that described Oil injection signal includes: oil spout side-play amount, it is intended that Cylinder and electromotor oil spout order.
Vehicle fuel system failure analogy method the most according to claim 9, it is characterised in that described oil spout side-play amount is in the scope of+100% to-100%.
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| CN201510141823.0A CN106157787A (en) | 2015-03-30 | 2015-03-30 | Vehicle fuel system failure analog and analogy method |
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| CN203070663U (en) * | 2013-02-01 | 2013-07-17 | 南京工业职业技术学院 | Automobile starting fault teaching device |
| CN203070657U (en) * | 2013-01-08 | 2013-07-17 | 南京工业职业技术学院 | Practical training teaching device for gasoline injection control system |
| CN203311730U (en) * | 2013-05-15 | 2013-11-27 | 张家玺 | Simulation demonstration teaching aid of diesel vehicle fuel oil system |
| CN103915007A (en) * | 2014-04-17 | 2014-07-09 | 姜斯平 | Diesel vehicle whole-vehicle rack simulation demonstration device |
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2015
- 2015-03-30 CN CN201510141823.0A patent/CN106157787A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144754A (en) * | 2007-09-25 | 2008-03-19 | 天津市优耐特汽车电控技术服务有限公司 | Automobile and engine experimental table oil path failure setting method and device |
| KR20120041330A (en) * | 2010-10-21 | 2012-05-02 | 호신환 | Educational simulation of electronic control system of automobile engine |
| CN202929942U (en) * | 2012-12-04 | 2013-05-08 | 黑龙江工程学院 | Semi-physical simulation experiment table of oil injection and igniting system of automotive engine |
| CN203070657U (en) * | 2013-01-08 | 2013-07-17 | 南京工业职业技术学院 | Practical training teaching device for gasoline injection control system |
| CN203070663U (en) * | 2013-02-01 | 2013-07-17 | 南京工业职业技术学院 | Automobile starting fault teaching device |
| CN203311730U (en) * | 2013-05-15 | 2013-11-27 | 张家玺 | Simulation demonstration teaching aid of diesel vehicle fuel oil system |
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