CN102866704A - Software testing simulation system of engine management system - Google Patents
Software testing simulation system of engine management system Download PDFInfo
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- CN102866704A CN102866704A CN2012103609934A CN201210360993A CN102866704A CN 102866704 A CN102866704 A CN 102866704A CN 2012103609934 A CN2012103609934 A CN 2012103609934A CN 201210360993 A CN201210360993 A CN 201210360993A CN 102866704 A CN102866704 A CN 102866704A
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- 238000013522 software testing Methods 0.000 title abstract 2
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- 208000021930 chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids Diseases 0.000 claims description 18
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Abstract
The invention relates to a software testing simulation system of an engine management system, which comprises a signal simulator, a first wire cutter, a first interface converter, a second interface converter, a second wire cutter, a simulated load and an adjustable voltage-stabilized power supply; wherein the adjustable voltage-stabilized power supply is respectively connected to the signal simulator and the simulated load so as to supply power for the signal simulator and the simulated load; the signal simulator is used for simulating and generating various input signals required by the engine management system currently and is connected to the first wire cutter; the first wire cutter is used for simulating power connection faults, earth faults and open-circuit faults of all input signals and is connected to the first interface converter; the first interface converter is used for providing the interface conversion of the input signals; the second interface converter is used for providing the interface conversion of an output load and is connected to the second wire cutter; and the second wire cutter is used for simulating power connection faults, earth faults and open-circuit faults of all control simulated loads and is connected to the simulated load.
Description
Technical field
The present invention relates to a kind of engine management system software test simulation system.
Background technology
Along with petroleum resources shortage and severe environmental pollution problem, thereby engine all adopts engine management system accurately to control fuel oil injection and ignition timing reduction discharging and improves problem of environmental pollution at present, the a large amount of petroleum resources of the same consumption of engine bench test car load test in the exploitation engine management system, can greatly improve the consumption of actual stand of development phase and car load test phase resource by simulated testing system, replace real engine for a large amount of R ﹠ D Cost of exploitation engine management system saving and improve problem of environmental pollution by producing simulating signal.
At present, the automobile electronics of China's independent development are in the accelerated development stage, the core technology of engine controller automotive control system, and automobile engine management system combines exploitation and the application of machinery, electronics and computer-controlled integrated technology.The defective of any a certain link all will cause the paralysis of whole system.
Domestic engine management system almost by offshore company (such as Bosch, Delphi, continent and co-partnership company thereof etc.) monopolization, limit domestic car load factory to the exploitation of independent development engine management system, restricted the sound development of China automotive electronic industry.
Present engine management system test comprises engine bench test, the vehicle performance test, and these all need real engine as controlled device, bring cost and and the very large test risk of great number for autonomous engine management system exploitation.The present invention remedies the exploitation proof of algorithm work in early stage by setting up the engine management system simulated testing system, reduces simultaneously the later stage engine bench test, the vehicle performance test duration.
Summary of the invention
The object of the invention is to solve the at present deficiency of testing tool in the exploitation engine management system, a kind of engine management system simulated testing system is proposed, can be used in engine management system research and development test, thereby be reduced in the engine bench test stage, the expensive problem of vehicle performance test phase excessive risk also facilitates for the developer understands each ingredient of engine management system simultaneously.
By modular design concept being incorporated into the engine management system simulated testing system, finish the test that can adapt to various engine management system controllers, solve domestic independent development engine management system software and set up simulated testing system, aspect developing personnel test.
Concrete technical scheme is as follows:
A kind of engine management system software test simulation system, comprise signal simulator, the first wire clipper, the first interface converter, the second interface convertor, the second wire clipper, fictitious load and adjustable stabilized voltage supply, wherein, described adjustable stabilized voltage supply is connected to respectively signal simulator and fictitious load and can powers to it; Described signal simulator is used for simulation and produces the needed all kinds of input signals of present engine management system, and it is connected to the first wire clipper; Described the first wire clipper is used for all input signals of simulation and connects power fail, earth fault and open fault, and it is connected to the first interface converter; The first interface converter is used for providing the input signal interface conversion; The second interface convertor is used for providing the output load interface conversion, and it is connected to the second wire clipper; What described the second wire clipper was used for all control simulation loads of simulation connects power fail, earth fault and open fault, and it is connected to fictitious load.
Further, engine management system to be tested is the engine management system controller, and described adjustable stabilized voltage supply is connected to this engine management system controller and can powers to it.
Further, described first interface converter and the second interface convertor are connected to respectively described engine management system controller.
Further, the first interface converter provides the input signal interface conversion for the engine management system controller, and the second interface convertor provides the output load interface conversion for the engine management system controller.
Further, described the first and second interface convertors define to customize different interface convertors according to the engine management system control unit interface.
Further, described fictitious load can be simulated the control object of real engine management system.
Further, described adjustable stabilized voltage supply can be simulated the accumulator under the different voltage statuss.
Further, described signal simulator comprises engine rotational speed signal for generation of the needed signal of engine management system, camshaft signal, 0 to 5V voltage type sensor signal, 0-30K Ω resistance type sensor signal, all types of switching signals of 0-12V etc.
Further, described fictitious load is used for the object that the simulated engine management system is controlled, and comprises fuel injector, ignition coil, relay, stepper motor, direct current generator, solenoid valve, instrument indication even load.
Further, described adjustable stabilized voltage supply is used for engine management system software test simulation system is powered, can the accumulator function of simulated engine management system controller power supply normally be moved for engine management system in minimum voltage and the maximal pressure situation under the simulation real vehicle state simultaneously.
Compare with present prior art, energy-conserving and environment-protective of the present invention, cost is low.Utilize modular design concept that the engine management system simulated testing system is divided into input signal simulator, wire clipper, interface convertor, fictitious load, adjustable stabilized voltage supply.The input signal simulator is characterised in that to simulate and produces the needed all kinds of input signals of present engine management system.Wire clipper is characterised in that and can simulates engine management system input signal and the fault mode test of control load under the short ground of appearance, short power supply, open circuit situation.Interface convertor is characterised in that and can defines to customize different interface convertors according to the engine management system control unit interface.Fictitious load is characterised in that the control object that can simulate the real engine management system.Adjustable stabilized voltage supply is characterised in that the accumulator that can simulate under the different voltage statuss.
Description of drawings
Fig. 1 is engine management system software test simulation system structural drawing of the present invention
Embodiment
The below describes the present invention with reference to the accompanying drawings, and it is a kind of preferred embodiment in the numerous embodiments of the present invention.
Present embodiment is comprised of 8 parts shown in Figure 1, adopts this modular test system can satisfy all engine management system software simulator tests.
Interface convertor 3 provides the input signal interface conversion for the engine management system controller that adapts to the distinct interface definition, the controller of convenient test different platform
Engine management system controller 4 is engine management system to be tested.
The object that fictitious load 7 can the simulated engine management system be controlled, such as fuel injector, ignition coil, relay, stepper motor, direct current generator, solenoid valve, instrument indication even load.
Adjustable stabilized voltage supply 8 is whole simulated testing system power supply, the accumulator function of simultaneously simulated engine management system controller power supply can simulate under the real vehicle state by this adjustable stabilized voltage supply that can engine management system normally move under the minimum voltage and maximal pressure situation.
Test macro of the present invention resolves into different modules with every test function in the engine management system, adapt to the software development test of different engine management system controllers by replacing interface convertor 3, interface convertor 5, for the developer saves a large amount of development times, save a large amount of cost of development.
The above has carried out exemplary description to the present invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (10)
1. an engine management system software test simulation system is characterized in that, comprises signal simulator, the first wire clipper, and the first interface converter, the second interface convertor, the second wire clipper, fictitious load and adjustable stabilized voltage supply, wherein,
Described adjustable stabilized voltage supply is connected to respectively signal simulator and fictitious load and can powers to it;
Described signal simulator is used for simulation and produces the needed all kinds of input signals of present engine management system, and it is connected to the first wire clipper;
Described the first wire clipper is used for all input signals of simulation and connects power fail, earth fault and open fault, and it is connected to the first interface converter;
The first interface converter is used for providing the input signal interface conversion;
The second interface convertor is used for providing the output load interface conversion, and it is connected to the second wire clipper;
What described the second wire clipper was used for all control simulation loads of simulation connects power fail, earth fault and open fault, and it is connected to fictitious load.
2. engine management system software test simulation system as claimed in claim 1, it is characterized in that, engine management system to be tested is the engine management system controller, and described adjustable stabilized voltage supply is connected to this engine management system controller and can powers to it.
3. engine management system software test simulation system as claimed in claim 2 is characterized in that, described first interface converter and the second interface convertor are connected to respectively described engine management system controller.
4. engine management system software test simulation system as claimed in claim 3, it is characterized in that, the first interface converter provides the input signal interface conversion for the engine management system controller, and the second interface convertor provides the output load interface conversion for the engine management system controller.
5. such as each described engine management system software test simulation system among the claim 1-4, it is characterized in that described the first and second interface convertors define to customize different interface convertors according to the engine management system control unit interface.
6. such as each described engine management system software test simulation system among the claim 1-5, it is characterized in that described fictitious load can be simulated the control object of real engine management system.
7. such as each described engine management system software test simulation system among the claim 1-6, it is characterized in that described adjustable stabilized voltage supply can be simulated the accumulator under the different voltage statuss.
8. such as each described engine management system software test simulation system among the claim 1-7, it is characterized in that, described signal simulator is for generation of the needed signal of engine management system, comprise engine rotational speed signal, camshaft signal, 0 to 5V voltage type sensor signal, 0-30K Ω resistance type sensor signal, all types of switching signals of 0-12V etc.
9. such as each described engine management system software test simulation system among the claim 1-8, it is characterized in that, described fictitious load is used for the object that the simulated engine management system is controlled, comprise fuel injector, ignition coil, relay, stepper motor, direct current generator, solenoid valve, instrument indication even load.
10. such as each described engine management system software test simulation system among the claim 1-9, it is characterized in that, described adjustable stabilized voltage supply is used for engine management system software test simulation system is powered, can the accumulator function of simulated engine management system controller power supply normally be moved for engine management system in minimum voltage and the maximal pressure situation under the simulation real vehicle state simultaneously.
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| CN2012103609934A CN102866704A (en) | 2012-09-25 | 2012-09-25 | Software testing simulation system of engine management system |
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| CN2012103609934A CN102866704A (en) | 2012-09-25 | 2012-09-25 | Software testing simulation system of engine management system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914852A (en) * | 2015-05-22 | 2015-09-16 | 中国汽车技术研究中心 | Diesel engine post-processing SCR test system and diesel engine post-processing SCR test method |
| CN110632511A (en) * | 2018-06-21 | 2019-12-31 | 联合汽车电子有限公司 | Engine on-line monitoring test system and method |
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| US20060048015A1 (en) * | 2004-08-27 | 2006-03-02 | Daimlerchrysler Ag | System integration test rig for networked overall mechatronic systems |
| EP2014898A2 (en) * | 2007-07-13 | 2009-01-14 | Honeywell International Inc. | Distributed engine control system |
| CN201210253Y (en) * | 2008-06-18 | 2009-03-18 | 北京经纬恒润科技有限公司 | Test device for testing automobile electronic controller |
| CN102169055A (en) * | 2010-12-31 | 2011-08-31 | 潍柴动力股份有限公司 | Jack horse measuring and controlling device, measuring and controlling system and method for engine |
| CN102608990A (en) * | 2012-02-20 | 2012-07-25 | 浙江大学 | ECU (Electronic Control Unit) actuator control signal fault injection device for engine HILS (Hardware-In-the-Loop Simulation) system |
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- 2012-09-25 CN CN2012103609934A patent/CN102866704A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060048015A1 (en) * | 2004-08-27 | 2006-03-02 | Daimlerchrysler Ag | System integration test rig for networked overall mechatronic systems |
| EP2014898A2 (en) * | 2007-07-13 | 2009-01-14 | Honeywell International Inc. | Distributed engine control system |
| CN201210253Y (en) * | 2008-06-18 | 2009-03-18 | 北京经纬恒润科技有限公司 | Test device for testing automobile electronic controller |
| CN102169055A (en) * | 2010-12-31 | 2011-08-31 | 潍柴动力股份有限公司 | Jack horse measuring and controlling device, measuring and controlling system and method for engine |
| CN102608990A (en) * | 2012-02-20 | 2012-07-25 | 浙江大学 | ECU (Electronic Control Unit) actuator control signal fault injection device for engine HILS (Hardware-In-the-Loop Simulation) system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104914852A (en) * | 2015-05-22 | 2015-09-16 | 中国汽车技术研究中心 | Diesel engine post-processing SCR test system and diesel engine post-processing SCR test method |
| CN110632511A (en) * | 2018-06-21 | 2019-12-31 | 联合汽车电子有限公司 | Engine on-line monitoring test system and method |
| CN110632511B (en) * | 2018-06-21 | 2021-10-08 | 联合汽车电子有限公司 | Engine on-line monitoring test system and method |
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Application publication date: 20130109 |