CN207198654U - A kind of Engine ECU igniting test system - Google Patents
A kind of Engine ECU igniting test system Download PDFInfo
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- CN207198654U CN207198654U CN201720931393.7U CN201720931393U CN207198654U CN 207198654 U CN207198654 U CN 207198654U CN 201720931393 U CN201720931393 U CN 201720931393U CN 207198654 U CN207198654 U CN 207198654U
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- ecu
- input
- test system
- voltage stabilizing
- engine ecu
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Abstract
The technical field of engine measuring control is the utility model is related to, more particularly, to a kind of Engine ECU lighting simulation test system.Engine ECU igniting test system of the present utility model, including PC host computers, single chip control module, ECU modules, power module and data acquisition module；Input speed is produced by speed waveform by single chip control module；Pass through data collecting module collected tach signal and ignition signal, pass through the time difference of the tach signal and the ignition signal of output of the analysis input of PC host computers, the ignition advance angle under different rotating speeds is calculated, to detect whether ECU igniting meets standard, judge ECU programs whether normal work；And can realize that computer intelligence tests multiple rotating speed points and judged, records the paperless management of test result, enterprise diagnosis vehicle ECU performance is helped, solves the record of prior art, the work judged, and greatly reduce system cost.
Description
Technical field
The technical field of engine measuring control is the utility model is related to, is lighted a fire more particularly, to a kind of Engine ECU
Simulated testing system.
Background technology
Engine electronic control unit（ECU）One of major function is under different vehicle rotating speeds, when getting hold of sparking
Machine, so as to obtain highest burning workmanship efficiency.At present, the performance quality of Engine ECU is detected in plant produced, it is main logical
A large-scale rotational speed regulation equipment is crossed, after being input to tested ECU, sparking signal is included in a real irony disk
On, observe by the naked eye ignition point on disk and fall on the corresponding scale of disk, draw ignition advance angle, and need to combine and work as forward
Speed, the current ignition advance angle of artificial judgment whether with current rotational speed matches, so as to judge whether ECU performance qualified.
However, existing machine simulation needs manual adjustment rotating speed, and detect by an unaided eye and ignition advance angle and keep a record；This
The technical equipment heaviness of kind test mode, cost is high, intelligence degree is relatively low, and system cost is high, record judges that work is inadequate
Accurately, the application of existing machinery equipment is limited.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided one kind is easy to carry and installed, system into
This is low, the Engine ECU igniting test system of record accuracy of judgement.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of Engine ECU igniting test system, including PC host computers, single chip control module, ECU modules, electricity are provided
Source module and data acquisition module, the input of the single chip control module are connected by communication interface circuit and PC host computers
Connect, the data for receiving the transmission of PC host computers carry out computing and synthesize tach signal；The ECU modules and single-chip microcomputer control mould
The output end communication connection of block, for receiving the tach signal from single chip control module, and exports ignition signal；The number
Single chip control module, the output end of ECU modules and PC host computers are connected to according to acquisition module, ECU modules are come from for gathering
Ignition signal and tach signal from single chip control module；The PC host computers are connected with data acquisition module, are used for
Analysis ignition signal and tach signal simultaneously calculate ignition advance angle；The power module and single chip control module, ECU modules and
Data acquisition module connects.
Engine ECU igniting test system of the present utility model, is inputted by PC host computers and sends rotary speed parameter, sampling
Parameter synthesizes computing to single chip control module, and the input waveform of simulating hand mechanical model will by single chip control module
The input speed that can be set is produced comprising 10 ° ~ 40 ° a positive half-wave, a negative half-wave and phase difference adjustable 5V square waves；Pass through ECU
The setting reception tach signal point of module, which is fought, exports ignition signal；Pass through data collecting module collected tach signal and igniting
Signal, the time difference of the tach signal and the ignition signal of output of input is analyzed by PC host computers, different rotating speeds are calculated
Under ignition advance angle, to detect whether ECU igniting meets standard, judge ECU programs whether normal work；Pass through power module
Be arranged to single chip control module, ECU modules and data acquisition module provide stable voltage, ensure the normal work of each module
Make.
Preferably, the single chip control module uses STC15F2k60S2 single-chip microcomputers, and the single-chip microcomputer output signal is
P11, P12 two-way square-wave signal.Single-chip microcomputer uses the STC15F2k60S2 family chips of the newest releases of STC, without crystal oscillator electricity
Road, periphery and its simplify, it is easy-to-use, it is cost-effective.
Preferably, the communication interface circuit turns serial port chip, the PC host computers including CH340T-TSSOP20 USB
It is upper that the driver for being used for that USB interface to be mapped as to serial ports is housed；The communication interface circuit is connected to the P3.0 of single-chip microcomputer
RxD pins, P3.1 TxD pins.It is more more stable than PL2303 chip reliable that CH340T-TSSOP20 USB turn serial port chip, by USB
Interface mappings use into serial ports for PC host computers and microcontroller communication.
Preferably, the first amplifying circuit is connected with the single-chip microcomputer, first amplifying circuit is connected to ECU rotating speed
Input pin；First amplifying circuit is made up of resistance R4, R5, R6, R7 and TL082 amplifier A, and described resistance R4, R5 connect
TL082 amplifiers A reverse input end and output end are connected to, described resistance R6, R7 are connected to the positive defeated of TL082 amplifiers A
Enter end；P11 roads square-wave signal is inputted by TL082 amplifiers A reverse input end, and P12 roads square-wave signal is by TL082
Amplifier A positive input input.The design of first amplifying circuit applies TL082 and concentrates amplifier chip to carry out difference channel
Subtraction, two paths of signals P11, P12 of single-chip microcomputer are carried out synthesis excitation out pins, formation meets ECU rotating speed input pins
Level.Calculated as follows：
Vout=((R5+R4)/R5) * (P12*R7/(R6+R7) – P11*R4/(R5+R4))
Preferably, the ECU modules are provided with the second amplifying circuit, and second amplifying circuit includes resistance R11, resistance
R12 and TL082 amplifiers B；Described resistance R11, R12 are connected in parallel in the positive input of TL082 operational amplifiers, described
TL082 amplifiers B reverse input end is connected with output end；The ignition signal is inputted by positive input, defeated by output end
Go out.Emitter following shaping output out1 pin of the ignite ignition signals of ECU transmittings after TL082 amplifier B amplifiers.
Preferably, the data acquisition module is the PCI-6221 data collecting cards using NI；The data acquisition module
Input the output end with TL082 amplifiers A, TL082 amplifiers B output end are connected respectively；The data acquisition module
Output end be connected with PC host computers by pci interface.Data collecting card uses NI PCI-6221, has 16,250 ks/
S, the characteristic of 16 tunnel simulation inputs；Data collecting card has 2 inputs, and each input can have 125ks/s resolution ratio, meets design
It is required that；Input 1 encourages out pins for the Waveform composition of single-chip microcomputer, and input 2 is ECU ignite ignition signals after amplifier
Penetrate level follow shaping export out1 pins, and 200V for passing through bleeder circuit or so output be compressed on data collecting card can
Inputted in the range of receiving.
Preferably, the power module includes power circuit, and the power circuit is steady by transformer, rectifier bridge, LM7812
Press chip, LM7912 voltage stabilizing chips, LM7805 voltage stabilizing chips and some electric capacity composition, the input of the LM7812 voltage stabilizing chips
Be connected with the input of LM7912 voltage stabilizing chips and the output end of rectifier bridge, the earth terminal of the LM7812 voltage stabilizing chips with
The earth terminal connection of LM7912 voltage stabilizing chips, the output end of the LM7812 voltage stabilizing chips and the output end of LM7912 voltage stabilizing chips
It is connected with the input of LM7805 voltage stabilizing chips.System power supply after being inputted by 220V external 9V with tapped transformer, mistake
After full-bridge rectification, through LM7812 and LM7912 voltage stabilizing chips, positive and negative 12V voltage is can obtain, the voltage there are two use：One is
Waveform composition amplifier chip below provides power supply, and two turn 220V inversions for 12V provides input power.Power module is finally used
LM7805 voltage stabilizings use into 5V for SCM system.
Preferably, the Engine ECU igniting test system also includes booster circuit, and the booster circuit is turned using 12V
220V inversion Voltage stabilizing modules, are connected with ECU modules.ECU needs to input 200V or so voltage, for safety, does not induce one directly
AC power voltage stabilizing, turn 220V inversion Voltage stabilizing modules using 12V.
Preferably, it is mounted with the PC host computers for setting serial ports parameter, rotary speed parameter, sampling parameter and display to survey
The LabVIEW softwares of test result.The LabVIEW software automatic tests of PC host computers and record test data, simulating hand machinery
The input waveform of model, realize that computer intelligence tests multiple rotating speed points and judged, records the paperless management of test result, side
Enterprise diagnosis vehicle ECU performance is helped, solves the record of prior art, the work judged, and greatly reduce system cost；Its
In, rotary speed parameter can be set, and often be inputted for 3 speed stages：400rpm、4000rpm、8000rpm.
Compared with prior art, the beneficial effects of the utility model are：
Engine ECU igniting test system of the present utility model, including the PC host computers of communication connection, single-chip microcomputer control mould
Block, ECU modules, power module and data acquisition module；PC host computers automatically testing is with record ECU in different set rotating speed
Under performance, single chip control module can simulating hand mechanical model input waveform, the rotary speed parameter amplifier of input is synthesized
For a positive half-wave, the speed waveform signal of a negative half-wave；ECU launches ignition signal, data acquisition module after receiving tach signal
Tach signal and ignition signal are gathered, and is calculated by the time difference of LabVIEW software analysis tach signal and ignition signal
Ignition advance angle, and judge ECU programs whether normal work；The utility model realizes computer intelligence and tests multiple rotating speed points
With judging, the paperless management of record test result, help enterprise diagnosis vehicle ECU performance, solve prior art record,
The work of judgement, and greatly reduce system cost.
Brief description of the drawings
Fig. 1 is the system block diagram of the Engine ECU igniting test system of embodiment one；
Fig. 2 is the single chip control module circuit of Engine ECU igniting test system；
Fig. 3 is the communication interface circuit of Engine ECU igniting test system；
Fig. 4 is the amplifying circuit of Engine ECU igniting test system；
Fig. 5 is the power circuit of Engine ECU igniting test system.
Embodiment
The utility model is further described with reference to embodiment.Wherein, being given for example only property of accompanying drawing
Illustrate, expression is only schematic diagram, rather than pictorial diagram, it is impossible to is interpreted as the limitation to this patent；In order to which this reality is better described
With new embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the size of actual product；To ability
For field technique personnel, some known features and its explanation may be omitted and will be understood by accompanying drawing.
Same or analogous label corresponds to same or analogous part in the accompanying drawing of the utility model embodiment；In this practicality
In new description, it is to be understood that if thering is the orientation of the instructions such as term " on ", " under ", "left", "right" or the position relationship to be
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore retouched in accompanying drawing
State term the being given for example only property explanation of position relationship, it is impossible to the limitation to this patent is interpreted as, for the common skill of this area
For art personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
Embodiment 1
Be first embodiment of the present utility model as shown in Figures 1 to 5, including PC host computers, single chip control module,
ECU modules, power module and data acquisition module, the input of single chip control module are upper with PC by communication interface circuit
Machine connects, and the data for receiving the transmission of PC host computers carry out computing and synthesize tach signal；ECU modules control with single-chip microcomputer
The output end communication connection of module, for receiving the tach signal from single chip control module, and exports ignition signal；Data
Acquisition module is connected to single chip control module, the output end of ECU modules and PC host computers, for gathering from ECU modules
Ignition signal and the tach signal from single chip control module；PC host computers are connected with data acquisition module, for analysis site
Fiery signal and tach signal simultaneously draw ignition advance angle；Power module and single chip control module, ECU modules and data acquisition module
Block connects.
Specifically, as shown in Fig. 2 single chip control module uses STC15F2k60S2 single-chip microcomputers, without crystal oscillating circuit, outside
Enclose and its simplify, easy-to-use, cost-effective, single-chip microcomputer output signal is P11, P12 two-way square-wave signal；As shown in figure 3, communication
Interface circuit turns serial port chip including CH340T-TSSOP20 USB, is equipped with PC host computers and is used to be mapped as going here and there by USB interface
The driver of mouth；Communication interface circuit is connected to the P3.0 RxD pins of single-chip microcomputer, P3.1 TxD pins；It is as shown in figure 4, single
The first amplifying circuit is connected with piece machine, first amplifying circuit is connected to ECU rotating speed input pin；First amplifying circuit
Be made up of resistance R4, R5, R6, R7 and TL082 amplifier A, resistance R4, R5 be connected to TL082 amplifiers A reverse input end and
Output end, resistance R6, R7 are connected to TL082 amplifiers A positive input；P11 roads square-wave signal is by TL082 amplifiers A's
Reverse input end is inputted, and P12 roads square-wave signal is inputted by TL082 amplifiers A positive input, and the two-way of single-chip microcomputer is believed
Number P11, P12 carry out synthesis excitation out pins, form the level for meeting ECU rotating speed input pins；It is connected with ECU modules
Second amplifying circuit, the second amplifying circuit include resistance R11, resistance R12 and TL082 amplifier B, resistance R11, R12 parallel connection even
The positive input of TL082 operational amplifiers is connected to, TL082 amplifiers B reverse input end is connected with output end；Igniting letter
Emitter following shaping output out1 pins number after TL082 amplifier B amplifiers；Data acquisition module is the PCI- using NI
6221 data collecting cards, data collecting card have two inputs：Input 1 encourages out pins, input 2 for the Waveform composition of single-chip microcomputer
Follow shaping to export out1 pins for ECU penetrate level of the ignite ignition signals after amplifier, and pass through bleeder circuit handle
200v or so output is compressed in the acceptable scope of data collecting card and inputted.
In addition, as shown in figure 5, power module includes power circuit, power circuit is steady by transformer, rectifier bridge, LM7812
Press chip, LM7912 voltage stabilizing chips, LM7805 voltage stabilizing chips and some electric capacity composition, the input of LM7812 voltage stabilizing chips with
The input of LM7912 voltage stabilizing chips and the output end of rectifier bridge connect, and the earth terminal and LM7912 of LM7812 voltage stabilizing chips are steady
The earth terminal connection of chip is pressed, the output end of LM7812 voltage stabilizing chips and the output end of LM7912 voltage stabilizing chips and LM7805 are steady
Press the input connection of chip.External 9v is with tapped transformer after being inputted by 220v for system power supply, after crossing full-bridge rectification,
Through LM7812 and LM7912 voltage stabilizing chips, positive and negative 12v voltage is can obtain, power module is finally supplied single with LM7805 voltage stabilizings into 5v
Piece machine system uses.
Engine ECU igniting test system also includes booster circuit, and booster circuit turns 220V inversion voltage stabilizing moulds using 12V
Block, it is connected with ECU modules.It is mounted with PC host computers for setting serial ports parameter, rotary speed parameter, sampling parameter and display test
As a result LabVIEW softwares, LabVIEW software automatic tests and record test data, the simulating hand machinery mould of PC host computers
The input waveform of type, realize that computer intelligence tests multiple rotating speed points and judged, records the paperless management of test result.
The operation principle of the present embodiment is as follows：
First, external 9v is with tapped transformer, after crossing full-bridge rectification, warp after system power supply is inputted by 220v
LM7812 and LM7912 voltage stabilizing chips, can obtain positive and negative 12v voltage：Be on the one hand, the TL082 amplifiers A in amplifying circuit,
TL082 amplifiers B provides power supply；On the one hand, 12V turns 220V inversions offer ECU input powers；It is again 5V electricity through LM7805 voltage stabilizings
Source uses for SCM system.
Pass through the LabVIEW software input speed parameters and sampling parameter loaded on PC host computers, single chip control module
Receive synthesis rotating speed square-wave signal after data carry out computing and out pins are exported after the first amplifying circuit amplifier；ECU ignite
Penetrate level of the ignition signal after the second amplifying circuit amplifier follows shaping to export out1 pins；PCI-6221 data collecting cards
Input is connected with out pins, out1 pins, is gathered tach signal and ignition signal and is exported soft to PC host computers, LabVIEW
Part analyzes tach signal and ignition signal, and calculates ignition advance angle, judge ECU whether normal work.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give all embodiments
It is exhaustive.All made within spirit of the present utility model and principle all any modification, equivalent and improvement etc., should be included in
Within the protection domain of the utility model claims.
Claims (10)
- The test system 1. a kind of Engine ECU is lighted a fire, it is characterised in that including PC host computers, single chip control module, ECU moulds Block, power module and data acquisition module, the input of the single chip control module are upper with PC by communication interface circuit Machine connects, and the data for receiving the transmission of PC host computers carry out computing and synthesize tach signal；The ECU modules and single-chip microcomputer control The output end communication connection of molding block, for receiving the tach signal from single chip control module, and exports ignition signal；Institute State data acquisition module and be connected to single chip control module, the output end of ECU modules and PC host computers, ECU is come from for gathering The ignition signal of module and the tach signal from single chip control module；The PC host computers are connected with data acquisition module, For analyzing ignition signal and tach signal and drawing ignition advance angle；The power module and single chip control module, ECU moulds Block and data acquisition module connection.
- The test system 2. Engine ECU according to claim 1 is lighted a fire, it is characterised in that the single chip control module Using STC15F2k60S2 single-chip microcomputers, the single-chip microcomputer output signal is P11, P12 two-way square-wave signal.
- The test system 3. Engine ECU according to claim 1 is lighted a fire, it is characterised in that described logicalCommunication interface circuit turns serial port chip including CH340T-TSSOP20 USB, is equipped with the PC host computers and is used to connect USB Mouth is mapped as the driver of serial ports；P3.0 RxD pins, the P3.1 TxD that the communication interface circuit is connected to single-chip microcomputer draw Pin.
- The test system 4. Engine ECU according to claim 3 is lighted a fire, it is characterised in that be connected with the single-chip microcomputer First amplifying circuit, first amplifying circuit are connected to ECU rotating speed input pin；First amplifying circuit is by resistance R4, R5, R6, R7 and TL082 amplifier A are formed, and described resistance R4, R5 are connected to TL082 amplifiers A reverse input end and defeated Go out end, described resistance R6, R7 are connected to TL082 amplifiers A positive input.
- The test system 5. Engine ECU according to claim 2 is lighted a fire, it is characterised in that P11 roads square-wave signal by TL082 amplifiers A reverse input end input, P12 roads square-wave signal are inputted by TL082 amplifiers A positive input.
- The test system 6. Engine ECU according to claim 1 is lighted a fire, it is characterised in that be connected with the ECU modules Second amplifying circuit, second amplifying circuit include resistance R11, resistance R12 and TL082 amplifier B；The resistance R11, R12 is connected in parallel in the positive input of TL082 operational amplifiers, the reverse input end and output end of the TL082 amplifiers B Connection；The ignition signal is inputted by positive input, is exported by output end.
- The test system 7. Engine ECU according to claim 1 is lighted a fire, it is characterised in that the data acquisition module contains There are NI PCI-6221 data collecting cards；The input of the data acquisition module respectively the output end with TL082 amplifiers A, TL082 amplifiers B output end connection；The output end of the data acquisition module is connected with PC host computers by pci interface.
- The test system 8. Engine ECU according to claim 1 is lighted a fire, it is characterised in that the power module includes electricity Source circuit, the power circuit is by transformer, rectifier bridge, LM7812 voltage stabilizing chips, LM7912 voltage stabilizing chips, LM7805 voltage stabilizing cores Piece and some electric capacity composition, the input of the LM7812 voltage stabilizing chips and the input of LM7912 voltage stabilizing chips and rectifier bridge Output end is connected, and the earth terminal of the LM7812 voltage stabilizing chips is connected with the earth terminal of LM7912 voltage stabilizing chips, the LM7812 The output end of voltage stabilizing chip is connected with the output end of LM7912 voltage stabilizing chips with the input of LM7805 voltage stabilizing chips.
- The test system 9. Engine ECU according to claim 1 is lighted a fire, it is characterised in that the Engine ECU igniting is surveyed Test system also includes booster circuit, and the booster circuit turns 220V inversion Voltage stabilizing modules using 12V, is connected with ECU modules.
- The test system 10. Engine ECU according to claim 1 is lighted a fire, it is characterised in that the PC host computers are mounted with For setting serial ports parameter, rotary speed parameter, sampling parameter and the LabVIEW softwares for showing test result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720931393.7U CN207198654U (en) | 2017-07-28 | 2017-07-28 | A kind of Engine ECU igniting test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720931393.7U CN207198654U (en) | 2017-07-28 | 2017-07-28 | A kind of Engine ECU igniting test system |
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| Publication Number | Publication Date |
|---|---|
| CN207198654U true CN207198654U (en) | 2018-04-06 |
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ID=61799189
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720931393.7U Expired - Fee Related CN207198654U (en) | 2017-07-28 | 2017-07-28 | A kind of Engine ECU igniting test system |
Country Status (1)
| Country | Link |
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| CN (1) | CN207198654U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333415A (en) * | 2019-08-05 | 2019-10-15 | 广汽菲亚特克莱斯勒汽车有限公司 | Motronic control maps static detection equipment and its electric-examination method |
| CN110361429A (en) * | 2019-08-09 | 2019-10-22 | 苗琪 | A kind of detection system for traditional Chinese herbal decoction detection of heavy metal ion |
-
2017
- 2017-07-28 CN CN201720931393.7U patent/CN207198654U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333415A (en) * | 2019-08-05 | 2019-10-15 | 广汽菲亚特克莱斯勒汽车有限公司 | Motronic control maps static detection equipment and its electric-examination method |
| CN110361429A (en) * | 2019-08-09 | 2019-10-22 | 苗琪 | A kind of detection system for traditional Chinese herbal decoction detection of heavy metal ion |
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