CN204610048U - Electric EGR valve control gear - Google Patents
Electric EGR valve control gear Download PDFInfo
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- CN204610048U CN204610048U CN201520074941.XU CN201520074941U CN204610048U CN 204610048 U CN204610048 U CN 204610048U CN 201520074941 U CN201520074941 U CN 201520074941U CN 204610048 U CN204610048 U CN 204610048U
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- egr valve
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- control gear
- electric egr
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Abstract
The utility model discloses a kind of electric EGR valve control gear, belong to a kind of direct-flow controlling device, described control gear comprises the collecting sensor signal unit for accessing electric EGR valve, described collecting sensor signal unit access data processing unit, for the Signal transmissions that will collect from electric EGR valve to data processing unit; Described data processing unit also electrically connects with driver element, for being controlled the aperture size of electric EGR valve by driver element by data processing unit.The aperture size of data to electric EGR valve fed back according to collecting sensor signal unit by data processing unit is controlled, and effectively improves the validity controlled direct current generator EGR valve, better ensures the balance of power performance and exhaust emissions process; A kind of electric EGR valve control gear structure provided by the utility model is simple simultaneously, and be suitable for installing and using in the exhaust gas recycling system (EGR) of all kinds of specification, application area is wide.
Description
Technical field
The utility model relates to a kind of direct-flow controlling device, and in particular, the utility model relates generally to a kind of electric EGR valve control gear.
Background technique
At present, Chinese automotive industry is just entering a fast-developing period, and domestic automobile quantity increases rapidly, and automobile is while bringing convenience to people's lives, and the emission of automobile is day by day serious to the pollution of environment.At several effulent (C0 of motor car engine
2, CO, HC, NO
x, PM) in, NO
xhazard ratio is comparatively large, and more difficultly effectively controls.The Abgasgesetz of increasingly stringent is met for protection of the environment; the internal combustion engine persons of various countries have done a large amount of effort and have discharged to reduce motor; researched and developed several effective controlling method, compared, EGR (EGR) is owing to reducing NO
xemission effect is the most remarkable, and technology is changed little, and design freedom is large, thus receives the favor of people, has obtained abroad at present and applied more widely.Traditional mechanical type, (control accuracy is not high due to their narrow limitation for gas electric type egr system, corresponding speed is slow), must be good by dynamic response, degree of regulation is high: exhaust gas recirculation amount is large, the relatively simple electric-controlled type egr system of structure replaces, and will extensively apply on vehicular engine.For this trend, be thus necessary to study the EGR valve control gear of electric-controlled type egr system and improve on this basis.
Model utility content
One of the purpose of this utility model is for above-mentioned deficiency, provides a kind of electric EGR valve control gear, cannot accurately to the aperture of EGR valve to expect to solve in prior art, cause engine exhaust cyclic utilization rate not high-technology be you bitterly.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of electric EGR valve control gear provided by the utility model, described control gear comprises the collecting sensor signal unit for accessing electric EGR valve, described collecting sensor signal unit access data processing unit, for the Signal transmissions that will collect from electric EGR valve to data processing unit; Described data processing unit also electrically connects with driver element, for being controlled the aperture size of electric EGR valve by driver element by data processing unit.
As preferably, further technological scheme is: described data processing unit is also electrically connected with data interface unit, and described data interface unit also accesses motor car running computer.
Further technological scheme is: described collecting sensor signal unit is EGR valve position feedback transducer, and engine rotation speed sensor, engine water temperature sensor, engine load sensor or accelerator open degree sensor, air inlet pressure sensor, any one or multiple combination in the middle of exhaust gas pressure temperature transducer.
Further technological scheme is: described driver element is the two-way isolation H-bridge drive circuit that four transistors and optocoupler are formed.
Further technological scheme is: described data interface unit is serial or parallel data-interface.
Compared with prior art, one of the beneficial effects of the utility model are: the aperture size of data to electric EGR valve fed back according to collecting sensor signal unit by data processing unit is controlled, effectively improve the validity that direct current generator EGR valve is controlled, better ensure the balance of power performance and exhaust emissions process; A kind of electric EGR valve control gear structure provided by the utility model is simple simultaneously, and be suitable for installing and using in the exhaust gas recycling system (EGR) of all kinds of specification, application area is wide.
Accompanying drawing explanation
Fig. 1 is the structured flowchart for illustration of the utility model embodiment;
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
Shown in figure 1, an embodiment of the present utility model is a kind of electric EGR valve control gear, this control gear comprises the collecting sensor signal unit for accessing electric EGR valve, described collecting sensor signal unit access data processing unit, for the Signal transmissions that will collect from electric EGR valve to data processing unit; Described data processing unit also electrically connects with driver element, for being controlled the aperture size of electric EGR valve by driver element by data processing unit.
In the present embodiment, the aperture size of data to electric EGR valve fed back according to collecting sensor signal unit by data processing unit is controlled, effectively improve the validity that direct current generator EGR valve is controlled, better ensure the balance of power performance and exhaust emissions process.
Further, be the accuracy that lifting device controls EGR valve, also can set up data interface unit in a device, and data processing unit is also electrically connected with data interface unit, then data interface unit is also accessed motor car running computer (ECU).
Same, for the accuracy that further lifting device controls EGR valve, also can adopt EGR valve position feedback transducer, and engine rotation speed sensor, engine water temperature sensor, engine load sensor or accelerator open degree sensor, air inlet pressure sensor, any one or multiple combination in the middle of exhaust gas pressure temperature transducer, as above-mentioned collecting sensor signal unit.Meanwhile, above-mentioned driver element preferably adopts the two-way isolation H-bridge drive circuit that four transistors and optocoupler are formed; Above-mentioned data interface unit preferably adopts serial or parallel data-interface.
Go out as shown in Figure 1, the above-mentioned preferred embodiment of the utility model in actual use, collecting sensor signal unit collect the current rotating speed of vehicle, the water temperature of motor, air throttle aperture, enter the position information that the pressure size of cylinder gas, the temperature and pressure of combustion gas and EGR valve position transducer feed back, and these information are carried out filter amplifying processing, then pass to data processing unit.Information converts digital signal to through A/D in data processing unit, and carries out logical operation through the program set, and produces a control signal export driver element in conjunction with the signal that the motor car running computer obtained from data interface unit is given.Driver element is according to the frequency of given control signal and dutycycle size, and the rotating speed controlling motor and turn to thus controls the aperture size of the EGR valve that be connected mechanical with it.By the position information of EGR valve position sensor feedback compared with the position desired by controller, the aperture of EGR valve can be controlled more accurately, improve validity.Whole EGR valve control unit carries out exchanges data by its data interface unit and Engine ECU, facilitates Engine ECU and controls the entirety of whole EGR valve work.
And by the control of EGR valve control unit to EGR valve aperture, the aperture of EGR valve accurately can be controlled fast according to the travelling state that vehicle is real-time.Realize the recycling of waste gas under effectively ensure that the prerequisite that combustion engine powered power character does not reduce, reduce the discharge of harmful gas, the reduction of discharging realizing vehicles dynamic performance oil consumption and harmful gas reaches optimum balance.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also drop in scope of the present utility model to realize this feature, structure or feature in conjunction with other embodiments.
Although be described the utility model with reference to multiple explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and mode of execution, these amendments and mode of execution will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the constituent elements of subject combination layout and/or layout.Except the modification of carrying out constituent elements and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (5)
1. an electric EGR valve control gear, it is characterized in that: described control gear comprises the collecting sensor signal unit for accessing electric EGR valve, described collecting sensor signal unit access data processing unit, for the Signal transmissions that will collect from electric EGR valve to data processing unit; Described data processing unit also electrically connects with driver element, for being controlled the aperture size of electric EGR valve by driver element by data processing unit.
2. electric EGR valve control gear according to claim 1, it is characterized in that: described data processing unit is also electrically connected with data interface unit, described data interface unit also accesses motor car running computer.
3. electric EGR valve control gear according to claim 1 and 2, it is characterized in that: described collecting sensor signal unit is EGR valve position feedback transducer, and engine rotation speed sensor, engine water temperature sensor, engine load sensor or accelerator open degree sensor, air inlet pressure sensor, any one or multiple combination in the middle of exhaust gas pressure temperature transducer.
4. electric EGR valve control gear according to claim 3, is characterized in that: described driver element is the two-way isolation H-bridge drive circuit that four transistors and optocoupler are formed.
5. the electric EGR valve control gear according to claim 1 or 4, is characterized in that: described data interface unit is serial or parallel data-interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520074941.XU CN204610048U (en) | 2015-02-03 | 2015-02-03 | Electric EGR valve control gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520074941.XU CN204610048U (en) | 2015-02-03 | 2015-02-03 | Electric EGR valve control gear |
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| Publication Number | Publication Date |
|---|---|
| CN204610048U true CN204610048U (en) | 2015-09-02 |
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ID=53962621
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520074941.XU Active CN204610048U (en) | 2015-02-03 | 2015-02-03 | Electric EGR valve control gear |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201665A (en) * | 2015-11-12 | 2015-12-30 | 无锡隆盛科技股份有限公司 | EGR (Exhaust Gas Recirculation) system of naturally aspirated diesel engine |
| CN107620645A (en) * | 2017-09-18 | 2018-01-23 | 宝沃汽车（中国）有限公司 | Egr valve control device and engine system and vehicle |
-
2015
- 2015-02-03 CN CN201520074941.XU patent/CN204610048U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201665A (en) * | 2015-11-12 | 2015-12-30 | 无锡隆盛科技股份有限公司 | EGR (Exhaust Gas Recirculation) system of naturally aspirated diesel engine |
| CN107620645A (en) * | 2017-09-18 | 2018-01-23 | 宝沃汽车（中国）有限公司 | Egr valve control device and engine system and vehicle |
| CN107620645B (en) * | 2017-09-18 | 2023-10-03 | 北汽福田汽车股份有限公司 | EGR valve control device, engine system and vehicle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |