CN105005006A - Device and method for power supply characteristic simulation test at moment of vehicle starting - Google Patents
Device and method for power supply characteristic simulation test at moment of vehicle starting Download PDFInfo
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- CN105005006A CN105005006A CN201510470672.3A CN201510470672A CN105005006A CN 105005006 A CN105005006 A CN 105005006A CN 201510470672 A CN201510470672 A CN 201510470672A CN 105005006 A CN105005006 A CN 105005006A
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Abstract
The invention provides a device for power supply characteristic simulation test at the moment of vehicle starting, comprising an industrial personal computer, a converter, a programmable power supply, a to-be-tested vehicle-borne electronic module, and an oscilloscope. The industrial personal computer is connected with one end of the converter through an instrument-oriented system expansion bus, and the other end of the converter is connected with the programmable power supply though a general purpose interface bus. A first output end of the programmable power supply is connected with a power end of the to-be-tested vehicle-borne electronic module, and a second output end of the programmable power supply is connected with an ACC power end of the to-be-tested vehicle-borne electronic module. A first channel of the oscilloscope is connected to a vehicle battery end, and a second channel of the oscilloscope is connected to a vehicle ACC power end. By adopting the device, the power supply characteristic curves of the vehicle battery end and the ACC end of the vehicle-borne electronic module can be tested at the same time, the design defects of the vehicle-borne electronic module can be tested earlier, and therefore, the cost for subsequent change and maintenance is reduced.
Description
Technical field
The present invention relates to field tests, be specifically related to the device and method of a kind of automobile starting instantaneous power simulated behavior test.
Background technology
On automobile, the power supply supply of each electronic module is realized by ignition switch usually, and the gear of ignition switch is divided into OFF gear, ACC gear, ON gear and START gear.Transients and the ignition switch of igniting are allocated to the transients of START gear from OFF gear.
The electronic module components such as automobile combination meter and main system of audio, often takes to carry out power supply supply by accumulator, and ACC electricity carries out signal input and detects and state-detection.ACC is electric, ON is electric is all take from a battery feed equally, and due to the characteristic of engine operation, the moment started, accumulator voltage can drag down instantaneously, and the voltage that the alternating current produced when the voltage of accumulator terminal can scurry into generator operation etc. are unstable.The voltage of accumulator often may exceed in a flash the operating voltage requirement of this vehicle electronics modular unit of 9V ~ 16V at this.Battery feed is taken from equally because ACC is electric, ON is electric, therefore battery tension and B+ end change in voltage time, ACC electricity and ON electricity equally also can change, but it is not quite identical with B+ terminal voltage, usual ACC terminal voltage is at synchronization, comparatively B+ terminal voltage, has the fluctuation of a few mV to a few V.This fluctuation, for vehicle electronics parts, as automobile audio, then can cause that touch screen lost efficacy, main system of audio crashes, dormancy such as cannot to wake up at the phenomenon of the failure, be therefore badly in need of solving how under this operating mode to the test of vehicle electronics modular unit and a difficult problem for checking.
If publication No. is the Chinese patent application of CN102724622A, provide and a kind ofly adopt the automobile storage battery terminal voltage value of single-chip microcomputer Real-time Collection automobile in ignition process, and export automobile audio to be measured to by PC, the scheme that the accumulator voltage carrying out carrying out simulated automotive start-up course is tested.The program only gathers the continuous poop signal that automobile storage battery produces in ignition process, do not gather the ACC terminal voltage signal for carrying out inputting detection and status monitoring, cause the program can not maximized simulation actual condition, and then cause some logic flaw of product can not be verified out in the design phase.In addition, collecting device for the mains voltage variations of automobile start moment is convenient not, the particular device that the Chinese patent application of publication No. CN102724622A provides need be used, if automobile is in the operating mode in extremely cold (environment is as Heihe) or very hot (environment is as Xinjiang), on-the-spot staff can not utilize the equipment such as conventional oscillograph, the battery feed change in voltage waveform of fact is gathered, adds testing cost.
Summary of the invention
The invention provides the device and method of a kind of automobile starting instantaneous power simulated behavior test, this device and method can be tested the family curve of the power supply that the automobile storage battery end of vehicle electronics module and ACC are held simultaneously, more early can test out the design defect of vehicle electronics module, to reduce follow-up change and maintenance cost.
To achieve these goals, the invention provides following technical scheme:
A kind of automobile starting instantaneous power simulated behavior proving installation, comprising: industrial computer, converter, programmable power supply able to programme, vehicle electronics module to be measured and oscillograph; Described industrial computer is by being connected towards instrument system expansion bus with described converter one end, and the other end of described converter is connected with described programmable power supply able to programme by general purpose interface bus; Described programmable power supply able to programme first output terminal is connected with the power end of vehicle electronics module to be measured, and the second output terminal is connected with the ACC power end of vehicle electronics module to be measured; Described oscillographic first passage is connected to automobile storage battery end, and second channel is connected to automobile ACC power end.
Preferably, described vehicle electronics module to be measured comprises: host computer of vedio device on vehicle, automobile combination meter, automobile vehicle body controller.
To achieve these goals, the invention provides following technical scheme:
A kind of automobile starting instantaneous power simulated behavior method of testing, comprising:
Step S1: utilize oscillograph gather the voltage waveform of automobile storage battery end and automobile ACC power end and preserve;
Step S2: read the voltage waveform of collected by oscillograph and carry out Waveform data format conversion, respectively the first array and the second array being stored in the waveform array data of automobile storage battery end and automobile ACC power end;
Step S3: carry out waveform optimization, obtains the 3rd array Wave data and the 4th array Wave data;
Step S4: utilize programmable power supply able to programme to treat measuring car live submodule and load voltage waveform data in the 3rd array and the 4th array simultaneously;
Step S5: treat measuring car live submodule and detect, if normally, then by test; If abnormal, then record magnitude of voltage now and feed back to designer.
Preferably, described utilize oscillograph to gather automobile storage battery end and automobile ACC power end voltage waveform and preserve, comprise the steps:
S11: connect oscillograph first passage and automobile storage battery end;
S12: connect oscillograph second channel and automobile ACC power end;
S13: operation ignition switch also starts automobile, intercepts the voltage waveform that now automobile storage battery end and ACC hold simultaneously;
S14: described waveform is preserved in the specific format.
Further, described specific format comprises " .csv " form.
Preferably, the conversion of described Waveform data format comprises and converts the string format Wave data of specific format to array formats data.
Preferably, carry out waveform optimization described in comprise the steps:
Step S31: the length obtaining the first array and the second array respectively, arranging this length is L1, L2;
Step S32: the first array and the second array are lined by line scan, and calculate the n-th (n=1 in the first array and the second array, 2, ...., L1) row secondary series voltage value and the (n+1)th (n=2, 3, ...., L1) the first voltage difference of row secondary series voltage value and the second voltage difference, if described first voltage difference >=0.05 or described first voltage difference≤-0.05 and described second voltage difference >=0.05 or described second voltage difference≤-0.05, then preserve the n-th (n=1 in the first array and the second array respectively, 2, ...., L1) row first row time value and secondary series magnitude of voltage are in the 3rd array and the 4th array, if the second voltage difference <0.05 described in the first voltage difference <0.05 described in-0.05< and-0.05<, then delete the n-th (n=1 in the first array and the second array, 2, ...., L1) row first row time value and secondary series magnitude of voltage,
Step S33: again obtain the length L3 of the 3rd array and the length L4 of the 4th array.
Beneficial effect of the present invention:
The invention provides the device and method of a kind of automobile starting instantaneous power simulated behavior test, not only can complete collection to the family curve data under various operating mode by oscillograph, and can test the family curve of the power supply that the automobile storage battery end of vehicle electronics module and ACC are held simultaneously, maximizedly can improve simulation test data, more early can test out the design defect of vehicle electronics module, to reduce follow-up change and maintenance cost.
Accompanying drawing explanation
Fig. 1 is automobile starting instantaneous power simulated behavior proving installation of the present invention.
Fig. 2 is the slide plate connection layout of ignition switch.
Fig. 3 is automobile starting instantaneous power simulated behavior test flow chart of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
As shown in Figure 1, be automobile starting instantaneous power simulated behavior proving installation of the present invention.The invention provides a kind of automobile starting instantaneous power simulated behavior proving installation, comprising: industrial computer, converter, programmable power supply able to programme, vehicle electronics module to be measured and oscillograph; Described industrial computer is by being connected towards instrument system expansion bus with described converter one end, and the other end of described converter is connected with described programmable power supply able to programme by general purpose interface bus; Described programmable power supply able to programme first output terminal is connected with the power end of vehicle electronics module to be measured, and the second output terminal is connected with the ACC power end of vehicle electronics module to be measured; Described oscillographic first passage is connected to automobile storage battery end, and second channel is connected to automobile ACC power end.
Described industrial computer adopts the PXI main frame of NI company, and wherein, PXI master controller adopts the PXI-8110 of NI company; The TOE8952 that described programmable power supply able to programme adopts TOELLNER company to produce, can carry out the output of two-way power supply simultaneously; Described converter adopts the USB/GPIB modular converter of Agilent company, and described industrial computer is connected with described programmable power supply able to programme by described converter, to realize the conversion of PXI bus and gpib bus; Described tested electronic module comprises the vehicle mounted electric submodule parts such as host computer of vedio device on vehicle, automobile combination meter, automobile vehicle body controller.
As shown in Figure 2, be the slide plate connection layout of ignition switch.According to the power distribution of automobile ignition switch, car load power supply is divided into B+, ACC, ON and ST electricity, wherein:
1) B+ and the normal power supply of accumulator terminal, vehicle mounted electrical apparatus is usually used as memory power supply;
2) ACC power supply provides power supply for vehicle accessory, is generally control power supply, is typically used as input;
3) ON power supply is divided into IG1 electricity and IG2 electricity, is the core power ensureing the running of car load electrical equipment.Module class electrical part is all by the power supply of IG1 electricity; IG2 electricity is general is used as input use, judges fired state;
4) ST power supply is only for start-up circuit.
As seen from Figure 2: when key is in OFF gear, do not have slide plate to be connected between each gear of ignition switch with the normal power supply B+ of accumulator terminal, therefore the equal non-transformer of each gear of ignition lock exports; When key is in ACC gear, connected between ACC and B+ by slide plate, namely ignition lock ACC end now has power supply to export; When key is in ON shelves, now, normal power supply B+, ACC, be connected by slide plate with IG1, IG2 and B+ is connected by slide plate, and namely now, each gear of ignition switch has power supply to export; When key is in ST shelves, B+ and IG1 is connected by slide plate, and B+ and ST is connected by slide plate, and that is, in the moment of Start igniting, B+, IG1 and ST of ignition switch have power supply to export, ACC and IG2 power supply now disconnects.
As shown in Figure 3, be automobile starting instantaneous power simulated behavior test flow chart of the present invention.The invention provides a kind of automobile starting instantaneous power simulated behavior method of testing, comprising:
Step S1: utilize oscillograph gather the voltage waveform of automobile storage battery end and automobile ACC power end and preserve;
Wherein, described step S1, also comprises the steps:
S11: connect oscillograph first passage and automobile storage battery end;
S12: connect oscillograph second channel and automobile ACC power end;
S13: operation ignition switch also starts automobile, intercepts the voltage waveform that now automobile storage battery end and ACC hold simultaneously;
S14: described waveform is preserved with the form of " .csv ".
Step S2: utilize LabVIEW software read the voltage waveform of collected by oscillograph and carry out Waveform data format conversion, respectively the first array and the second array are stored in the waveform array data of automobile storage battery end and automobile ACC power end;
Step S3: utilize LabVIEW software to carry out waveform optimization, obtains the 3rd array Wave data and the 4th array Wave data;
Described step S3 also comprises the steps:
Step S31: the length obtaining the first array and the second array respectively, arranging this length is L1, L2;
Step S32: the first array and the second array are lined by line scan, and calculate the n-th (n=1 in the first array and the second array, 2, ...., L1) row secondary series voltage value and the (n+1)th (n=2, 3, ...., L1) the first voltage difference of row secondary series voltage value and the second voltage difference, if described first voltage difference >=0.05 or described first voltage difference≤-0.05 and described second voltage difference >=0.05 or described second voltage difference≤-0.05, then preserve the n-th (n=1 in the first array and the second array respectively, 2, ...., L1) row first row time value and secondary series magnitude of voltage are in the 3rd array and the 4th array, if the second voltage difference <0.05 described in the first voltage difference <0.05 described in-0.05< and-0.05<, then delete the n-th (n=1 in the first array and the second array, 2, ...., L1) row first row time value and secondary series magnitude of voltage,
Step S33: again obtain the length L3 of the 3rd array and the length L4 of the 4th array.
Step S4: utilize the sub-VI of visa in LabVIEW software, obtain the GPIB address of programmable power supply able to programme, set up contacting between industrial computer and programmable power supply able to programme, recycle programmable power supply able to programme and treat measuring car live submodule and load voltage waveform data in the 3rd array and the 4th array simultaneously;
Step S5: treat measuring car live submodule and detect, if normally, then by test; If abnormal, then record magnitude of voltage now and feed back to designer.
The invention provides the device and method of a kind of automobile starting instantaneous power simulated behavior test, its beneficial effect is:
The device and method of automobile starting instantaneous power simulated behavior test provided by the invention, not only can complete collection to the family curve data under various operating mode by oscillograph, and can test the family curve of the power supply that the automobile storage battery end of vehicle electronics module and ACC are held simultaneously, maximizedly can improve simulation test data, more early can test out the design defect of vehicle electronics module, to reduce follow-up change and maintenance cost.
Above-described specific embodiment; object of the present invention, technical scheme are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. an automobile starting instantaneous power simulated behavior proving installation, is characterized in that, comprising: industrial computer, converter, programmable power supply able to programme, vehicle electronics module to be measured and oscillograph; Described industrial computer is by being connected towards instrument system expansion bus with described converter one end, and the other end of described converter is connected with described programmable power supply able to programme by general purpose interface bus; Described programmable power supply able to programme first output terminal is connected with the power end of vehicle electronics module to be measured, and the second output terminal is connected with the ACC power end of vehicle electronics module to be measured; Described oscillographic first passage is connected to automobile storage battery end, and second channel is connected to automobile ACC power end.
2. automobile starting instantaneous power simulated behavior proving installation according to claim 1, is characterized in that, described vehicle electronics module to be measured comprises: host computer of vedio device on vehicle, automobile combination meter, automobile vehicle body controller.
3. an automobile starting instantaneous power simulated behavior method of testing, is characterized in that, comprising:
Step S1: utilize oscillograph gather the voltage waveform of automobile storage battery end and automobile ACC power end and preserve;
Step S2: read the voltage waveform of collected by oscillograph and carry out Waveform data format conversion, respectively the first array and the second array being stored in the waveform array data of automobile storage battery end and automobile ACC power end;
Step S3: carry out waveform optimization, obtains the 3rd array Wave data and the 4th array Wave data;
Step S4: utilize programmable power supply able to programme to treat measuring car live submodule and load voltage waveform data in the 3rd array and the 4th array simultaneously;
Step S5: treat measuring car live submodule and detect, if normally, then by test; If abnormal, then record magnitude of voltage now and feed back to designer.
4. automobile starting instantaneous power simulated behavior method of testing according to claim 3, is characterized in that, described utilize oscillograph to gather automobile storage battery end and automobile ACC power end voltage waveform and preserve, comprise the steps:
S11: connect oscillograph first passage and automobile storage battery end;
S12: connect oscillograph second channel and automobile ACC power end;
S13: operation ignition switch also starts automobile, intercepts the voltage waveform that now automobile storage battery end and ACC hold simultaneously;
S14: described waveform is preserved in the specific format.
5. automobile starting instantaneous power simulated behavior method of testing according to claim 4, it is characterized in that, described specific format comprises " .csv " form.
6. automobile starting instantaneous power simulated behavior method of testing according to claim 3, is characterized in that, the conversion of described Waveform data format comprises and converts the string format Wave data of specific format to array formats data.
7. automobile starting instantaneous power simulated behavior method of testing according to claim 4, is characterized in that, described in carry out waveform optimization and comprise the steps:
Step S31: the length obtaining the first array and the second array respectively, arranging this length is L1, L2;
Step S32: the first array and the second array are lined by line scan, and calculate the n-th (n=1 in the first array and the second array, 2, ...., L1) row secondary series voltage value and the (n+1)th (n=2, 3, ...., L1) the first voltage difference of row secondary series voltage value and the second voltage difference, if described first voltage difference >=0.05 or described first voltage difference≤-0.05 and described second voltage difference >=0.05 or described second voltage difference≤-0.05, then preserve the n-th (n=1 in the first array and the second array respectively, 2, ...., L1) row first row time value and secondary series magnitude of voltage are in the 3rd array and the 4th array, if the second voltage difference <0.05 described in the first voltage difference <0.05 described in-0.05< and-0.05<, then delete the n-th (n=1 in the first array and the second array, 2, ...., L1) row first row time value and secondary series magnitude of voltage,
Step S33: again obtain the length L3 of the 3rd array and the length L4 of the 4th array.
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| CN107219422A (en) * | 2017-06-05 | 2017-09-29 | 安徽江淮汽车集团股份有限公司 | Vehicle-mounted electrical appliance electrified test system and method |
| CN107462797A (en) * | 2017-09-18 | 2017-12-12 | 安徽江淮汽车集团股份有限公司 | A kind of automobile starting voltage analog system and method |
| CN107577215A (en) * | 2017-07-31 | 2018-01-12 | 芜湖宏景电子股份有限公司 | A kind of test system of simulated automotive electronic unit CAN functions |
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| CN110618325A (en) * | 2019-08-30 | 2019-12-27 | 上海赫千电子科技有限公司 | Vehicle simulation ignition pressure test system |
| CN110928267A (en) * | 2019-10-25 | 2020-03-27 | 东风电驱动系统有限公司 | Method and device for evaluating stability of automobile electric control unit |
| CN111239524A (en) * | 2020-02-27 | 2020-06-05 | 东风小康汽车有限公司重庆分公司 | Detection method and system for electronic module during automobile starting |
| CN111337265A (en) * | 2018-12-18 | 2020-06-26 | 上汽通用汽车有限公司 | CAN-based automatic test method and system for electric appliance components of whole vehicle |
| CN111965401A (en) * | 2020-06-05 | 2020-11-20 | 嘉兴行适安车联网信息科技有限公司 | Method for simulating vehicle starting power supply |
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| CN105929209A (en) * | 2016-04-29 | 2016-09-07 | 惠州市德赛西威汽车电子股份有限公司 | Automobile cranking voltage simulation method and circuit |
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| CN107219422B (en) * | 2017-06-05 | 2019-05-21 | 安徽江淮汽车集团股份有限公司 | Vehicle-mounted electrical appliance electrified test system and method |
| CN107219422A (en) * | 2017-06-05 | 2017-09-29 | 安徽江淮汽车集团股份有限公司 | Vehicle-mounted electrical appliance electrified test system and method |
| CN107577215A (en) * | 2017-07-31 | 2018-01-12 | 芜湖宏景电子股份有限公司 | A kind of test system of simulated automotive electronic unit CAN functions |
| CN107462797A (en) * | 2017-09-18 | 2017-12-12 | 安徽江淮汽车集团股份有限公司 | A kind of automobile starting voltage analog system and method |
| CN111337265A (en) * | 2018-12-18 | 2020-06-26 | 上汽通用汽车有限公司 | CAN-based automatic test method and system for electric appliance components of whole vehicle |
| CN111337265B (en) * | 2018-12-18 | 2022-08-16 | 上汽通用汽车有限公司 | CAN-based automatic test method and system for electric appliance components of whole vehicle |
| CN110542565A (en) * | 2019-08-30 | 2019-12-06 | 上海赫千电子科技有限公司 | Vehicle simulation ignition test method |
| CN110618325A (en) * | 2019-08-30 | 2019-12-27 | 上海赫千电子科技有限公司 | Vehicle simulation ignition pressure test system |
| CN110928267A (en) * | 2019-10-25 | 2020-03-27 | 东风电驱动系统有限公司 | Method and device for evaluating stability of automobile electric control unit |
| CN111239524A (en) * | 2020-02-27 | 2020-06-05 | 东风小康汽车有限公司重庆分公司 | Detection method and system for electronic module during automobile starting |
| CN111965401A (en) * | 2020-06-05 | 2020-11-20 | 嘉兴行适安车联网信息科技有限公司 | Method for simulating vehicle starting power supply |
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