CN107479542A - A kind of vehicle ECU test systems - Google Patents
A kind of vehicle ECU test systems Download PDFInfo
- Publication number
- CN107479542A CN107479542A CN201710878064.5A CN201710878064A CN107479542A CN 107479542 A CN107479542 A CN 107479542A CN 201710878064 A CN201710878064 A CN 201710878064A CN 107479542 A CN107479542 A CN 107479542A
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- signal
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- simulation
- load
- vehicle ecu
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention discloses a kind of vehicle ECU test systems, including power supply, signal simulation analogue unit and environmental simulation unit, wherein, the signal simulation analogue unit includes ECU communication test instrument, the environmental simulation unit includes one or more in load subelement, fault simulation subelement, signal acquisition subelement, hardware signal subelement, and the power supply, ECU communication tests instrument, load subelement, fault simulation subelement, signal acquisition subelement, hardware signal subelement are connected with vehicle-mounted ECU.The synthesis operating mode needed for vehicle ECU tests is covered in the vehicle ECU test systems of said structure, effective simulation, improves the efficiency of vehicle ECU tests, reduces the cost of vehicle ECU tests.
Description
Technical field
The present invention relates to a kind of vehicle ECU test systems, belong to vehicle testing field.
Background technology
Vehicle ECU test phases generally require real steering vectors checking vehicle-mounted ECU function.Problems be present in real steering vectors：
Before vehicle factor produces sample car, conventional conventional exemplar is typically used, deletes function to detect basic function, other functions
Cannot effectively it verify, it is understood that there may be great capability error, function debugging is difficult when causing sample car trial assembly；Sample car is because cost
Consider, being dispensed into the quantity of vehicle-mounted ECU supplier has a strict limitation, and the interactive function between different vehicle-mounted ECUs is because sample car is whole
Car ECU functional statuses are not complete, or even various mistakes be present, and often debugging sample car needs to carry out substantial amounts of communication and coordination；
Another major reason is experimental site, for dynamic characteristic of the simulating vehicle under various operating modes, it is necessary to possess perfect
Experimental site, these experimental sites not only build use cost height, but also seasonal the problem of using be present, such as winter ice
Avenging road surface test ground can only northerly winter；Real steering vectors can not simulate various extreme dynamic characteristics and failure, car completely
The critical point test that load ECU test is covered is often that simulation reproduction is not present or be difficult under truth.
In view of this, the present inventor is studied this, specially develops a kind of vehicle ECU test systems, this case is thus
Produce.
The content of the invention
It is an object of the invention to provide a kind of vehicle ECU test systems, effective simulation is covered needed for vehicle ECU tests
Synthesis operating mode, improve the efficiency of vehicle ECU test, reduce the cost of vehicle ECU tests.
To achieve these goals, solution of the invention is：
A kind of vehicle ECU test systems, including power supply, signal simulation analogue unit and environmental simulation unit, wherein, the signal
Analogue simulation unit includes ECU communication test instrument, the environmental simulation unit include load subelement, fault simulation subelement,
One or more of signal acquisition subelement, hardware signal subelement, the power supply, ECU communication tests instrument, load are single
Member, fault simulation subelement, signal acquisition subelement, hardware signal subelement are connected with vehicle-mounted ECU.
Preferably, it is described load subelement include load handover module, and with load handover module be connected it is true
Load blocks and programmable load module.The online switching that subelement integrates real load and programmable load is loaded, can basis
Testing requirement flexibly switches online.
Preferably, the load handover module uses solid-state relay, and solid-state relay is controlled by control module
Action.
Preferably, the fault simulation module includes array fault simulation plate, the fault simulation plate includes open circuit and selected
Relay, direct fault location selective relay and failure are selected to GND/ power supply selective relays, by control module control it is each after
Electrical equipment acts.Fault simulation module can realize vehicle ECU connecting line to power supply short circuit, connecting line open circuit and load to GND
Open circuit simulation.
Preferably, the control module uses I/O cards.
Preferably, the hardware signal subelement includes being connected with each other Signal-regulated kinase and hardware signal simulation mould
Block.
Preferably, the power supply uses programmable power supply.
Vehicle ECU test systems of the present invention can realize complete vehicle signal simulation and environmental simulation, can be according to actual need
Ask the corresponding analogue unit of selection/subelement to carry out vehicle ECU tests, can flexibly simulate various extreme operating conditions and hardware events
Barrier, the complete test for covering vehicle signal, environmental testing, the demarcation research and development to vehicle ECU provide effective data foundation, together
When reduce the cost that real steering vectors are extremely tested, realize the repeatable simulation of extreme operating condition and fault simulation.Effectively solve
There is no the problem of test platform and test platform resource scarcity in vehicle ECU tests, improve efficiency and the survey of vehicle ECU tests
Quality is tried, shortens the R＆D cycle of overall project.
The present invention is described in further detail below in conjunction with drawings and the specific embodiments.
Brief description of the drawings
Fig. 1 is the vehicle ECU test system block diagrams of embodiment 1；
Fig. 2 is the load handover module single channel schematic diagram of embodiment 1；
Fig. 3 is the fault simulation plate single channel schematic diagram of embodiment 1；
Fig. 4 is the vehicle ECU test system block diagrams of embodiment 2（Dotted portion is internally integrated software reality by ECU communication test instrument
It is existing）；
Fig. 5 is the vehicle ECU test system block diagrams of embodiment 3（Dotted portion simulates mould by ECU communication tests instrument and hardware signal
Block is internally integrated software realization）；
Fig. 6 is the vehicle ECU test system block diagrams of embodiment 4.
Embodiment
Embodiment 1
As shown in figure 1, a kind of vehicle ECU test systems, including power supply 1, signal simulation analogue unit and environmental simulation unit, institute
Stating environmental simulation unit includes control module 2, real load module 3, programmable load module 4, load handover module 5, failure
Analog module 6, signal acquisition module 7, Signal-regulated kinase 8 and hardware signal analog module 9.In the present embodiment, the control
Molding block 2 uses I/O cards, can specifically use the non-isolated digital quantity I/O cards of PCI buses.
The power supply 1 uses programmable power supply, and programmable power supply is realized the power supply of vehicle ECU tests, can simulated various
Power supply is set, and meets ISO 16750-2（The environmental condition and experiment part 2 power supply of road vehicle-Electrical and Electronic equipment
Environment ISO16750.2 2010）Testing requirement.Typically optional Ai Dekesi IT6500 series or IT6500D series.
The signal simulation analogue unit includes the ECU communication tests instrument 10 being connected with vehicle-mounted ECU 11, the ECU communications
Tester 10 is mainly calculated by data storage cell, main control unit, communication unit, node simulation unit, node monitoring unit, node
The compositions such as method resolution unit, diagnosis resolution unit.It is that the function of node signal emulating instrument and signal recording instrument be combined with each other, it is real
Existing signal simulation and recording, simplify test hardware system, and a whole set of test is completed by single communication equipment can, right at the scene
Failure part carries out analysis without returning to test.
As shown in Fig. 2 it is described load handover module 5 respectively with vehicle-mounted ECU 11, control module 2, real load module 3, can
Programmed load module 4 is connected, and the real load module 3, programmable load module 4 realize the simulation of vehicle ECU loads, can be with
Switch real load module 3 or programmable load module 4 by loading handover module according to demand.Use real load module
3 can effective simulating actual conditions, need draw ECU control load characteristic when True Data is provided；Real load module 3 one
As select and real vehicle entrucking exemplar as load, can use in some fault tests failure exemplar as load, such as surveying
Try clamp after entrucking is selected in electronic parking controller test and be used as load；Various events can be realized using programmable load module 4
Ai Dekesi is selected in the simulation of barrier and the simulation of some extreme load characteristics, in the present embodiment, programmable load module 4
Serial straight/the alternating current electronic loads of IT8600, for power bracket up to 14.4kVA, frequency 45HZ ~ 450HZ is adjustable.The load switching
Module 5 passes through I/O cards（That is control module 2）Control solid-state relay 51 to realize and load handoff functionality, solid-state relay 51 is sensitive
Degree is high, and control power is small, and Electro Magnetic Compatibility is good：The input voltage range of solid-state relay 51 is wider, and driving power is low, can with it is big
Majority logic integrated circuit compatibility is not required to plus buffer or driver.Solid-state relay is because use solid state device, switching
Speed can be from several milliseconds to several microseconds.
Described one end of Signal-regulated kinase 8 is connected with vehicle-mounted ECU 11, and the other end is connected with hardware signal analog module 9, firmly
Part signal imitation module 9 and Signal-regulated kinase 8 are used for the input signal simulation for realizing vehicle ECU, support switching signal, frequency
The input signal simulation and conditioning of signal, resistance signal and voltage signal.In the present embodiment, hardware signal analog module 9 selects
With magnificent pci bus multifunction card simulation I/O signals, frequency signal and analog output signal is ground, its sampling rate is up to 1MS/s
, 16 resolutions, it is the ideal chose that most of data acquisition is applied.There is provided that 16 tunnels are single-ended or the analog input of 8 tunnel difference,
2 16, tunnels D/A analog output channels, 16 bit digital quantity output channels, and 1 10MHz 16 multi-functional counter passages.
Signal-regulated kinase 8, which is used for signal, to be changed and isolates, can be by the I/O signals, frequency signal, simulation of pci bus multifunction card
Output signal is converted into the signal condition needed for vehicle-mounted ECU system.
The signal acquisition that the signal acquisition module 7 is realized vehicle ECU signal acquisition and loaded, support switching signal,
The collection of frequency signal, voltage signal and current signal.The present embodiment free-standing high speed mould applicable from magnificent PCI buses are ground
Intend input adaptation card.It has 32 analog input channels and up to 30 MS/s sampling rate, is carried for A/D samplings
For continuous, uninterrupted, high speed stream data, so as to management and control internal memory.
The fault simulation module 6 includes array fault simulation plate, as shown in figure 3, every group of fault simulation plate is included successively
Connected breaking selective relay 61, direct fault location selective relay 62 and GND/power supply selective relay 63, each relay
Device is by I/O cards（That is control module 2）Control, fault simulation module be used to realizing vehicle ECU connecting line to GND, to electricity
Source short circuit, connecting line open circuit and load cut-off simulation.
Vehicle ECU test systems described in the present embodiment can select corresponding module to carry out vehicle ECU according to the actual requirements
Test, various extreme operating conditions and hardware fault can be flexibly simulated, improve the coverage of vehicle ECU tests, the mark to vehicle ECU
Fixed research and development provide effective data foundation, while reduce the cost that real steering vectors are extremely tested, realize extreme operating condition and
The repeatable simulation of fault simulation.The effective simulation for realizing vehicle signal, environment, created to vehicle ECU tests basic
Test environment, solve the problems, such as there is no a test platform and test platform resource scarcity in vehicle ECU tests, improve whole
The efficiency and test quality of car ECU tests, shorten the R＆D cycle of overall project.
Embodiment 2
The present embodiment is signal imitation example-speed simulation：GES effective marker position, car in simulation ABS output signals
Fast signal, front left wheel speed signal effective marker position, front left wheel speed signal, front right wheel speed signal effective marker position, front right wheel speed letter
Number, rear left wheel speed signal effective marker position, rear left wheel speed signal, rear right wheel speed signal effective marker position and rear right wheel speed signal.
As shown in figure 4, vehicle ECU test systems include power supply 1 and ECU communication tests instrument 10, car is set by ECU communication tests instrument 10
The short-cut counting method, GES algorithm, speed are averaged equal to preceding wheel speed.The wheel short-cut counting method, vehicle body as needed dynamic write-in wheel are set
The short-cut counting method, can simulate single-wheel does not have adhesive force slip rate height, takes turns no adhesive force slip rate height, speed fault, wheel speed failure more
Deng.Start and send ABS signal nodes simulation GES, signal is configured by cycle tests manager to realize various operating mode moulds
Intend, cycle tests Manager Feature includes the setting of node algorithm, node signal is set, the node signal cycle sets and node start and stop
Configuration.
Embodiment 3
The present embodiment is signal and environmental simulation example-accelerator pedal：Accelerator pedal in simulation EMS output signals has criterion
Will position, accelerator pedal signal, accelerator pedal high-side switch status signal and accelerator pedal low-side switch status signal.Environmental simulation
Accelerator pedal position sensor, accelerator pedal high-side switch and accelerator pedal low-side switch.As shown in figure 5, vehicle ECU tests system
System includes power supply 1, Signal-regulated kinase 8, hardware signal analog module 9 and ECU communication tests instrument 10, passes through ECU communication tests
Instrument 10 and hardware signal analog module 9 set accelerator pedal signal, the output relation of accelerator pedal position sensor, it is necessary to import
Acceleration transducer algorithms, accelerator pedal position switch state signal and accelerator pedal switch are set, accelerator pedal position is set,
Vehicle body dynamic write-in accelerator pedal position algorithm as needed, can simulate the various depth that various accelerator pedals are stepped on, accelerate
Pedal failure etc..Start transmission EMS signal node simulation pedal signals, signal is configured by cycle tests manager and configuration adds
Speed pedal position sensor realizes various Work condition analogues, and cycle tests Manager Feature sets including accelerator pedal position sensor
Put, node algorithm is set, node signal is set, the node signal cycle is set and node start and stop configuration.
Embodiment 4
The present embodiment is signal acquisition and real load example-stopping caliper：Gather stopping caliper clamping force and stopping caliper electricity
Stream, as shown in fig. 6, vehicle ECU test systems include power supply 1 and the signal acquisition module 7 being connected respectively with vehicle-mounted ECU 11, adopt
Collection stopping caliper clamping force needs weighing sensor, sensor transducer and signal condition output, and collection stopping caliper electric current needs
Want current transformer and signal condition.Characteristic curve can be drawn according to the signal of collection and obtains critical data, for example clamp clamp
When clamping force and parking current characteristic curve, the curve of drafting can be used for data analysis to change vehicle ECU control strategies.
Above-described embodiment and schema and non-limiting product form of the invention and style, any art it is common
The appropriate change or modification that technical staff is done to it, it all should be regarded as not departing from the patent category of the present invention.
Claims (7)
- A kind of 1. vehicle ECU test systems, it is characterised in that：Including power supply, signal simulation analogue unit and environmental simulation unit, Wherein, the signal simulation analogue unit includes ECU communication test instrument, and the environmental simulation unit includes load subelement, event One or more of barrier simulation subelement, signal acquisition subelement, hardware signal subelement, the power supply, ECU communication tests Instrument, load subelement, fault simulation subelement, signal acquisition subelement, hardware signal subelement are connected with vehicle-mounted ECU.
- A kind of 2. vehicle ECU test systems as claimed in claim 1, it is characterised in that：The load subelement includes load Handover module, and the real load module and programmable load module being connected with load handover module.
- A kind of 3. vehicle ECU test systems as claimed in claim 2, it is characterised in that：The load handover module is using solid State relay, and control solid-state relay to act by control module.
- A kind of 4. vehicle ECU test systems as claimed in claim 1, it is characterised in that：The fault simulation module includes number Group fault simulation plate, the fault simulation plate include breaking selective relay, direct fault location selective relay and failure to GND/ Power supply selective relay, each actuating of relay is controlled by control module.
- A kind of 5. vehicle ECU test systems as described in claim 3 or 4, it is characterised in that：The control module uses I/O Card.
- A kind of 6. vehicle ECU test systems as claimed in claim 1, it is characterised in that：The hardware signal subelement includes It is connected with each other Signal-regulated kinase and hardware signal analog module.
- A kind of 7. vehicle ECU test systems as claimed in claim 1, it is characterised in that：The power supply uses programmable power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710878064.5A CN107479542A (en) | 2017-09-26 | 2017-09-26 | A kind of vehicle ECU test systems |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710878064.5A CN107479542A (en) | 2017-09-26 | 2017-09-26 | A kind of vehicle ECU test systems |
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| CN107479542A true CN107479542A (en) | 2017-12-15 |
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| CN201710878064.5A Pending CN107479542A (en) | 2017-09-26 | 2017-09-26 | A kind of vehicle ECU test systems |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799809A (en) * | 2019-01-28 | 2019-05-24 | 北京新能源汽车股份有限公司 | Direct fault location circuit, method and ECU test macro for ECU test |
| CN110377004A (en) * | 2019-07-12 | 2019-10-25 | 北京祥远通达科技有限公司 | Automobile-used half virtual ECU test macro and its test method |
| CN111308988A (en) * | 2020-03-06 | 2020-06-19 | 鹏睿检测技术(上海)有限公司 | Automobile electronic control unit test system |
| CN111693814A (en) * | 2020-06-23 | 2020-09-22 | 东风汽车有限公司 | Vehicle-mounted load data acquisition system and data acquisition method |
| CN112051832A (en) * | 2020-08-31 | 2020-12-08 | 安徽江淮汽车集团股份有限公司 | Fault testing method, device and system based on simulation node and storage medium |
| CN113759879A (en) * | 2021-09-28 | 2021-12-07 | 重庆长安汽车股份有限公司 | Vehicle-mounted Ethernet DoIP diagnosis flash test method and system based on L3 whole vehicle architecture |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799809A (en) * | 2019-01-28 | 2019-05-24 | 北京新能源汽车股份有限公司 | Direct fault location circuit, method and ECU test macro for ECU test |
| CN110377004A (en) * | 2019-07-12 | 2019-10-25 | 北京祥远通达科技有限公司 | Automobile-used half virtual ECU test macro and its test method |
| CN111308988A (en) * | 2020-03-06 | 2020-06-19 | 鹏睿检测技术(上海)有限公司 | Automobile electronic control unit test system |
| CN111693814A (en) * | 2020-06-23 | 2020-09-22 | 东风汽车有限公司 | Vehicle-mounted load data acquisition system and data acquisition method |
| CN112051832A (en) * | 2020-08-31 | 2020-12-08 | 安徽江淮汽车集团股份有限公司 | Fault testing method, device and system based on simulation node and storage medium |
| CN113759879A (en) * | 2021-09-28 | 2021-12-07 | 重庆长安汽车股份有限公司 | Vehicle-mounted Ethernet DoIP diagnosis flash test method and system based on L3 whole vehicle architecture |
| CN113759879B (en) * | 2021-09-28 | 2023-07-04 | 重庆长安汽车股份有限公司 | Vehicle-mounted Ethernet DoIP diagnosis and writing test method and system based on L3 whole vehicle architecture |
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