CN206458543U - A kind of Lambda air-fuel ratios instrument - Google Patents
A kind of Lambda air-fuel ratios instrument Download PDFInfo
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- CN206458543U CN206458543U CN201720093980.3U CN201720093980U CN206458543U CN 206458543 U CN206458543 U CN 206458543U CN 201720093980 U CN201720093980 U CN 201720093980U CN 206458543 U CN206458543 U CN 206458543U
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Abstract
The utility model provides a kind of Lambda air-fuel ratios instrument, including an input block, an output unit and a main control unit, the input block is connected with the output unit with the main control unit, and the input block includes an analogue signal processor, a switch signal processor and a pulse signal processor；The main control unit includes input module and output module, and the main control unit is connected by the input module with the input block, and the main control unit is connected by the output module with the output unit；The output unit includes an integrated comprehensive treatment device and a wide oxygen signal processor, cooperate the common measure realized to Lambda air fuel ratio values between the input block, the output unit and the main control unit three, it can be achieved data uploading CAN, so that electric injection system carries out the amendment of distributive value by data, exhaust emissions can be preferably controlled, and fuel economy can be improved.
Description
Technical field
The utility model is related to a kind of air-fuel ratio instrument, more particularly to a kind of Lambda air-fuels of control motor vehicle engine
Than instrument, belong to engine art.
Background technology
With progressively going deep into for reform and opening-up, motor vehicle industry is also developed rapidly, and current China has turned into motor-driven
Car big producer, increasing motor vehicle is participated in road transport, and the discharge of motor vehicle also turns into of concern ask
Topic.However, one of important parameter of influence automotive emission is exactly air-fuel ratio, air-fuel ratio be in gaseous mixture air with
Mass ratio between fuel, it not only influences the exhaust emissions of motor vehicles, the also dynamic property and fuel economy to engine
Property has important influence.
Lambda refers to the ratio of actual mixing ratio and chemically correct fuel, alternatively referred to as excess air factor, is for true
Determine an index of dilute dense degree of gaseous mixture.At present, the air-fuel score that the ECOTRONS companies of the U.S. that in the market occurs release
Analyzer LSU4.2, although the equipment operation principle is simple, cheap, but the output signal and ginseng of such Air/Fuel ratio analysis instrument
Examine reference air in room closely bound up, and reference air is easy to by motor exhaust or the pollution of other pollution sources, so causing
The output signal of the Air/Fuel ratio analysis instrument is inaccurate, deteriorates the tail gas of motor vehicles.
In summary, how a kind of Lambda air-fuel ratios instrument is provided, motor vehicle engine can be accurately controlled
Lambda air-fuel ratios, so that fuel for motor vehicles burning is abundant, improve exhaust emissions.So as to reach more environmentally friendly requirement, just
Become those skilled in the art's urgent problem to be solved.
The content of the invention
In view of the drawbacks described above that prior art is present, the purpose of this utility model is to propose a kind of Lambda air-fuel ratios instrument.
The purpose of this utility model, will be achieved by the following technical programs：
A kind of Lambda air-fuel ratios instrument, including an input block, an output unit and a main control unit, the input block
It is connected with the output unit with the main control unit, the input block includes an analogue signal processor, a switch
Signal processor and a pulse signal processor；The main control unit includes input module and output module, the main control unit
It is connected by the input module with the input block, the main control unit is single by the output module and the output
Member is connected；The output unit includes an integrated comprehensive treatment device and a wide oxygen signal processor, the input block, institute
State the common measure realized to Lambda air fuel ratio values that cooperated between output unit and the main control unit three.
Preferably, the main control unit input module includes the first ADC, GIN, the first input capture.
Preferably, main control unit output module include the second input capture, GOUT, SPI, SCI and CAN module,
2nd ADC, PWM.
Preferably, the main control unit output module also includes a power supply that electric power is provided for the main control unit.
Preferably, the integrated synthesis processor includes power module, magnetoelectricity signal processor, low side drive module, K
Line transceiver and CAN transceiver.
Preferably, the analogue signal processor is connected with first ADC signal, the switch signal processor and institute
The connection of GIN signals is stated, the pulse signal processor is connected with the first input capture signal.
Preferably, the power module is connected with the power supply, and the magnetoelectricity signal processor is caught with the described second input
Signal connection is caught, the low side drive module is connected with the GOUT, the SPI signal respectively, wherein the low side driving mould
Block is bi-directionally connected with the SPI for signal, and the K line transceivers are bi-directionally connected with the SCI signals, the CAN transceiver with
The CAN module signal is bi-directionally connected.
Preferably, the wide oxygen signal processor is connected with the 2nd ADC, the pwm signal respectively.
Prominent effect of the present utility model is：The utility model provides a kind of Lambda air-fuel ratios instrument, is passed with wide oxygen
The closed-loop control of sensor, can be achieved data uploading CAN, so that electric injection system carries out repairing for distributive value by data
Just, exhaust emissions can be preferably controlled, and fuel economy can be improved.In addition, the utility model clear in structure, mechanical relation
Excellent, assembly cost is low, and suitable large-scale promotion is used.
Just accompanying drawing in conjunction with the embodiments, is described in further detail to embodiment of the present utility model below, so that this
Utility model technical scheme is more readily understood, grasped.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of embodiment in the utility model.
Embodiment
The utility model discloses a kind of Lambda air-fuel ratio instrument for being used to control motor vehicle engine.Below in conjunction with figure
1 and Fig. 2 is described further to the utility model.
A kind of Lambda air-fuel ratios instrument, such as Fig. 1, including an input block, an output unit and a main control unit, it is described defeated
Enter unit with the output unit with the main control unit to be connected, the input block include an analogue signal processor,
One switch signal processor and a pulse signal processor；The main control unit includes input module and output module, the master
Control unit by it is described input module be connected with the input block, the main control unit by it is described export module with it is described
Output unit is connected；The output unit includes an integrated comprehensive treatment device and a wide oxygen signal processor, the output
Cooperate the common measure realized to Lambda air fuel ratio values between unit and the main control unit three.
The main control unit input module includes the first ADC（Analog-digital converter）、GIN（Universaling I/O port is inputted）, it is first defeated
Enter to catch.
The main control unit output module includes the second input capture, GOUT（Universaling I/O port is exported）、SPI（Serial peripheral
Interface）、SCI（Serial communication interface）, CAN module, the 2nd ADC（Analog-digital converter）、PWM（Pulse-width modulator）, also wrap
Include a power supply that electric power is provided for the main control unit.
The integrated synthesis processor includes power module, magnetoelectricity signal processor, low side drive module, the transmitting-receiving of K lines
Device and CAN transceiver.
The analogue signal processor, the switch signal processor and the pulse signal processor are equipped with input
End, output end.
The signal that the analogue signal processor input is received include barometric pressure sensor, the first analog quantity it is reserved,
Second analog quantity is reserved, the 3rd analog quantity is reserved, the 4th analog quantity is reserved, but is not limited only to these signals.The switch letter
The signal that the input of number processor is received is respectively that first switch amount is reserved and second switch amount is reserved.At the pulse signal
The signal that the input of reason device is received is respectively that the first pulse signal is reserved and the second pulse signal is reserved.
The analogue signal processor output end and the first ADC（Analog-digital converter）Signal is connected, the switch letter
Number processor output end and the GIN（Universaling I/O port is inputted）Signal connect, the pulse signal processor output end with it is described
First input capture signal is connected.
The power module has four output ends, respectively 5V main power sources, the first 5V reference power sources, the 2nd 5V reference power sources
With 12V reference power sources, they are connected with the power supply, the power module also include two inputs respectively with storage battery, key
Spoon is connected, and by its break-make of key controller, the storage battery is that the main control unit is powered by the power module.
The magnetoelectricity signal processor output end is connected with the second input capture signal, the magnetoelectricity signal processor
Input is connected with CRANK SENSOR.
The low side drive module input respectively with the GOUT（Universaling I/O port is exported）Connection, the SPI（Serially
Peripheral Interface）Signal is connected, wherein the low side drive module input and the SPI（Serial Peripheral Interface (SPI)）It is two-way for signal
Connection, the low side drive module output end is connected with the first reserved port signal.
The K line transceivers input and the SCI（Serial communication interface）Signal is bi-directionally connected, the K line transceivers
Output end is bi-directionally connected with the second reserved port signal.
The CAN transceiver input is bi-directionally connected with the CAN module signal, the CAN transceiver output end and CAN
Signal is bi-directionally connected.
The wide oxygen signal processor input respectively with the 2nd ADC（Analog-digital converter）, the PWM（Pulse is wide
Spend modulator）Signal is connected, the 2nd ADC（Analog-digital converter）、PWM（Pulse-width modulator）With the wide oxygen signal processor
Form closed loop；The wide oxygen signal processor output end is connected with wide lambda sensor.
The Lambda air-fuel ratios instrument that the utility model described briefly below is provided coordinates ECU（Electronic control unit）Use
Embodiment, hardware connection as shown in Fig. 2 in the present embodiment, the input of used Lambda air-fuel ratios instrument respectively with magnetic
Electric-type crankshaft position sensor, generator-temperature detection sensor, the first lambda sensor, the second lambda sensor, neutral position switch, key
Door, battery are connected, and the input of Lambda air-fuel ratio instrument is also connected with Lambda sensor (the wide lambda sensors of Lambda)
Connect, wherein, generator-temperature detection sensor, the first lambda sensor, the second lambda sensor, neutral position switch, the art work people
Whether member can install unrestricted choice as needed；The model that Lambda sensor (the wide lambda sensors of Lambda) are selected
LSU4.9；One end of magneto electric type crankshaft position sensor may choose whether to access 58 tooth target wheels, the other end and Lambda air-fuels
Input than instrument is connected.
The output end of Lambda air-fuel ratio instrument passes through CAN and ECU（Electronic control unit）It is connected, meanwhile, it is also connected with
Lambda sensor (the wide lambda sensors of Lambda) wide lambda sensor heating pin, and heat driven circuit must be closed loop
Feedback circuit, there is embodiment in fig. 1 and 2.
Lambda air-fuel ratio instrument is additionally provided with the diagnosis interface communicated for KW2000.
The utility model is provided into a kind of Lambda air-fuel ratios instrument and coordinates ECU（Electronic control unit）, can be with after use
Preferably control exhaust emissions, and fuel economy, a kind of Lambda air-fuel ratios instrument tool provided by the utility model can be provided
There is the closed control circuit of wide lambda sensor, can be achieved data uploading CAN, so that electric injection system is carried out by data
The amendment of distributive value.In addition, the utility model clear in structure, mechanical relation are excellent, assembly cost is low, and suitable large-scale promotion makes
With.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit and essential characteristics of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model, any reference in claim should not be considered as into limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (8)
1. a kind of Lambda air-fuel ratios instrument, including an input block, an output unit and a main control unit, the input block with
The output unit is connected with the main control unit, it is characterised in that：The input block includes an analog signal processing
Device, a switch signal processor and a pulse signal processor；The main control unit includes input module and output module, described
Main control unit is connected by the input module with the input block, and the main control unit is by the output module and institute
Output unit is stated to be connected；The output unit includes an integrated comprehensive treatment device and a wide oxygen signal processor, described defeated
Enter the survey for cooperating and being realized jointly to Lambda air fuel ratio values between unit, the output unit and the main control unit three
It is fixed.
2. a kind of Lambda air-fuel ratios instrument according to claim 1, it is characterised in that：The main control unit input module includes
First ADC, GIN, the first input capture.
3. a kind of Lambda air-fuel ratios instrument according to claim 1, it is characterised in that：The main control unit output module includes
Second input capture, GOUT, SPI, SCI and CAN module, the 2nd ADC, PWM.
4. a kind of Lambda air-fuel ratios instrument according to claim 3, it is characterised in that：The main control unit output module is also wrapped
Include a power supply that electric power is provided for the main control unit.
5. a kind of Lambda air-fuel ratios instrument according to claim 4, it is characterised in that：The integrated synthesis processor includes
Power module, magnetoelectricity signal processor, low side drive module, K line transceivers and CAN transceiver.
6. a kind of Lambda air-fuel ratios instrument according to claim 2, it is characterised in that：The analogue signal processor with it is described
First ADC signal is connected, and the switch signal processor is connected with the GIN signals, the pulse signal processor with it is described
First input capture signal is connected.
7. a kind of Lambda air-fuel ratios instrument according to claim 5, it is characterised in that：The power module connects with the power supply
Connect, the magnetoelectricity signal processor is connected with the second input capture signal, the low side drive module respectively with it is described
GOUT, SPI signal connection, wherein the low side drive module is bi-directionally connected with the SPI for signal, the K lines transmitting-receiving
Device is bi-directionally connected with the SCI signals, and the CAN transceiver is bi-directionally connected with the CAN module signal.
8. a kind of Lambda air-fuel ratios instrument according to claim 3, it is characterised in that：The wide oxygen signal processor respectively with
2nd ADC, pwm signal connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720093980.3U CN206458543U (en) | 2017-01-24 | 2017-01-24 | A kind of Lambda air-fuel ratios instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720093980.3U CN206458543U (en) | 2017-01-24 | 2017-01-24 | A kind of Lambda air-fuel ratios instrument |
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| Publication Number | Publication Date |
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| CN206458543U true CN206458543U (en) | 2017-09-01 |
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| CN201720093980.3U Active CN206458543U (en) | 2017-01-24 | 2017-01-24 | A kind of Lambda air-fuel ratios instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963348A (en) * | 2019-05-20 | 2020-11-20 | 华益机电有限公司 | Automatic fuel calibration device and method for electronic fuel injection system |
-
2017
- 2017-01-24 CN CN201720093980.3U patent/CN206458543U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963348A (en) * | 2019-05-20 | 2020-11-20 | 华益机电有限公司 | Automatic fuel calibration device and method for electronic fuel injection system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210224 Address after: 226001 No.88 Xinning Road, Chongchuan District, Nantong City, Jiangsu Province Patentee after: Jiangsu aoyikesi Automotive Electronic Technology Co.,Ltd. Address before: 215200 building 7, Tsinghua Automobile Industrial Park, 139 Lianyang Road, Wujiang District, Suzhou City, Jiangsu Province Patentee before: SUZHOU AECS AUTOMOTIVE ELECTRONICS Co.,Ltd. |
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| TR01 | Transfer of patent right |