CN103364741A - Vehicle-mounted electronic product power supply pulse automated test system - Google Patents
Vehicle-mounted electronic product power supply pulse automated test system Download PDFInfo
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- CN103364741A CN103364741A CN201310304236XA CN201310304236A CN103364741A CN 103364741 A CN103364741 A CN 103364741A CN 201310304236X A CN201310304236X A CN 201310304236XA CN 201310304236 A CN201310304236 A CN 201310304236A CN 103364741 A CN103364741 A CN 103364741A
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Abstract
A vehicle-mounted electronic product power supply pulse automated test system comprises a programmable power supply, a loader, a general series bus and controller local area network bus communicator and a computer, wherein the general series bus and controller local area network bus communicator is connected with the computer and a controller local area network bus, the loader is connected to the controller local area network bus, the current output end of the programmable power supply is connected with the loader, and the control end and the feedback current signal output end of the programmable power supply are connected with the computer. Test pulses are loaded to the programmable power supply once through the computer and CAN communication is synchronized. After operation of any one test pulse is completed, whether fed back static current is within a set value range is judged, and the next pulse continues to be loaded when the static current is within the set value range. The vehicle-mounted electronic product power supply pulse automated test system achieves automatic loading of the test pluses and automatic synchronization of CAN communication, improves test efficiency, and saves test tools and manpower cost.
Description
Technical field:
The present invention relates to electricity field, relate in particular to the automobile electronics automatization testing technique, particularly a kind of vehicle electronics product power pulse automatization test system.
Background technology:
In the prior art, the step of vehicle electronics product power pulse test is: the manual loading test pulse is to the PSU(programmable power supply); Manually connect the CAN(Controller Area Network BUS) communication; Detect the function of automobile electronics; Measure quiescent current.After above-mentioned steps was finished, the next test pulse of manual loading repeated above step successively again, amounts to 361 pulses (being not limited only to 361 pulses).Because each pulse test needs personnel's manual loading test pulse and connects the CAN communication, needs cost a large amount of manpower and time, and it is higher to set up the cost of CAN OE hardware of CAN communication, can be up to 150,000 yuan.
Summary of the invention:
The object of the present invention is to provide a kind of vehicle electronics product power pulse automatization test system, described this vehicle electronics product power pulse automatization test system will solve the technical matters that needs personnel's manual loading test pulse in the prior art in the vehicle electronics product power pulse test process and connect the CAN communication.
This vehicle electronics product power pulse automatization test system of the present invention, comprise a programmable power supply, a loader, USB (universal serial bus) and Controller Area Network BUS communicator and a computing machine, described programmable power supply comprises a control end, a feedback current signal output part and a current output terminal, wherein, described USB (universal serial bus) and Controller Area Network BUS communicator comprise a USB (universal serial bus), a Controller Area Network BUS interface and a treatment circuit of changing above-mentioned USB (universal serial bus) signal and Controller Area Network BUS interface signal, described USB (universal serial bus) is connected with described computing machine by universal serial bus cable, described Controller Area Network BUS interface is connected on the Controller Area Network BUS, described loader is connected on the described Controller Area Network BUS, the current output terminal of described programmable power supply is connected with loader, the control end of programmable power supply is connected with computing machine with the feedback current signal output part, vehicle electronics product to be measured is connected on the Controller Area Network BUS, utilize computing machine that the pulse signal parameter that sets in advance is loaded into programmable power supply, export test pulse by programmable power supply to loader, loader is loaded into vehicle electronics product to be measured by Controller Area Network BUS with test pulse, communication signal on the computing machine while isochronous controller local area network bus, and after any one test pulse operation is finished, judge that the quiescent current of programmable power supply feedback is whether in range of set value, when the quiescent current of feedback satisfies range of set value, continue to load next test pulse, until all pulsing operations are complete.
Further, the number of the pulse signal that sets in advance of computing machine is 361 (being not limited only to 361).
The present invention and prior art are compared, and its effect is actively with obvious.The present invention utilizes computing machine and the loader communication that is connected on the CAN bus, and control programmable power supply, in computing machine, pre-set the parameter of all test pulses, test pulse is loaded into programmable power supply successively, and synchronous CAN communication, after any one test pulse operation is finished, judge that the quiescent current of feedback is whether in range of set value, when the quiescent current of feedback satisfies range of set value, continue to load next test pulse, until all pulsing operations are complete.The present invention has realized the automatic loading of test pulse in the vehicle electronics product power pulse test process and the automatic synchronization of CAN communication, has improved testing efficiency, has saved instrument and the human cost of test.
Description of drawings:
Fig. 1 is the schematic diagram of vehicle electronics product power pulse automatization test system of the present invention.
Fig. 2 is the test pulse figure among the embodiment of vehicle electronics product power pulse automatization test system of the present invention.
Fig. 3 is the testing software process flow diagram among the embodiment of vehicle electronics product power pulse automatization test system of the present invention
Embodiment:
Embodiment 1:
Such as Fig. 1, Fig. 2 and shown in Figure 3, vehicle electronics product power pulse automatization test system of the present invention, comprise a programmable power supply 2, a loader 4, USB (universal serial bus) and Controller Area Network BUS communicator 3, vehicle electronics product 5 to be measured and a computing machine 1, described programmable power supply 2 comprises a control end, a feedback current signal output part and a current output terminal, wherein, described USB (universal serial bus) and Controller Area Network BUS communicator 3 comprise a USB (universal serial bus), a Controller Area Network BUS interface and a treatment circuit of changing above-mentioned USB (universal serial bus) signal and Controller Area Network BUS interface signal, described USB (universal serial bus) is connected with described computing machine 1 by universal serial bus cable, described Controller Area Network BUS interface is connected on the Controller Area Network BUS, described loader 4 is connected on the described Controller Area Network BUS, the current output terminal of described programmable power supply 2 is connected with loader 4, the control end of programmable power supply 2 is connected with computing machine 1 with the feedback current signal output part, vehicle electronics product 5 to be measured is connected on the Controller Area Network BUS, utilize computing machine 1 that the pulse signal parameter that sets in advance is loaded into programmable power supply 2, export test pulses by programmable power supply 2 to loader 4, loader 4 is loaded into vehicle electronics product 5 to be measured by Controller Area Network BUS with test pulse, communication signal on 1 while of the computing machine isochronous controller local area network bus, and after any one test pulse operation is finished, judge that the quiescent current of programmable power supply 2 feedback is whether in range of set value, when the quiescent current of feedback satisfies range of set value, continue to load next test pulse, until all pulsing operations are complete.
Further, the number of the pulse signal that sets in advance of computing machine 1 is 361 (being not limited only to 361).
Concrete, the testing process of the present embodiment is as follows.Start built-in vehicle electronics product power pulse automatic test program in the computing machine, initialization PSU(programmable power supply), checks each testing tool, after instrument connects normally, program automatically sends pulse and is loaded into PSU, and synchronous CAN communication, operation is after pulse finishes, and judges that the quiescent current of feedback is whether in range of set value, if quiescent current does not exceed setting value, to automatically continue to load next pulse, until all pulsing operations are complete, finish test.
Flow process according to this is until finish whole 361 pulses (being not limited only to 361 pulses).
In test process shown in Figure 2, in the stage of setup test, carry out the initialization instrument, in voltage fluctuation test, every 50 milliseconds of transmissions information of once lighting a fire, judge in the quiescent current testing procedure whether quiescent current meets the requirements.
Claims (2)
1. vehicle electronics product power pulse automatization test system, comprise a programmable power supply, a loader, USB (universal serial bus) and Controller Area Network BUS communicator and a computing machine, described programmable power supply comprises a control end, a feedback current signal output part and a current output terminal, it is characterized in that: described USB (universal serial bus) and Controller Area Network BUS communicator comprise a USB (universal serial bus), a Controller Area Network BUS interface and a treatment circuit of changing above-mentioned USB (universal serial bus) signal and Controller Area Network BUS interface signal, described USB (universal serial bus) is connected with described computing machine by universal serial bus cable, described Controller Area Network BUS interface is connected on the Controller Area Network BUS, described loader is connected on the described Controller Area Network BUS, the current output terminal of described programmable power supply is connected with loader, the control end of programmable power supply is connected with computing machine with the feedback current signal output part, vehicle electronics product to be measured is connected on the Controller Area Network BUS, utilize computing machine that the pulse signal parameter that sets in advance is loaded into programmable power supply, export test pulse by programmable power supply to loader, loader is loaded into vehicle electronics product to be measured by Controller Area Network BUS with test pulse, communication signal on the computing machine while isochronous controller local area network bus, and after any one test pulse operation is finished, judge that the quiescent current of programmable power supply feedback is whether in range of set value, when the quiescent current of feedback satisfies range of set value, continue to load next test pulse, until all pulsing operations are complete.
2. vehicle electronics product power pulse automatization test system as claimed in claim 1, it is characterized in that: the number of the pulse signal that computing machine sets in advance is at least 361.
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| CN201310304236XA CN103364741A (en) | 2013-07-19 | 2013-07-19 | Vehicle-mounted electronic product power supply pulse automated test system |
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| CN201310304236XA CN103364741A (en) | 2013-07-19 | 2013-07-19 | Vehicle-mounted electronic product power supply pulse automated test system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049202A (en) * | 2014-06-27 | 2014-09-17 | 奇瑞汽车股份有限公司 | Method for evaluating parasitic currents of automobile electrical appliance circuits |
| CN105242218A (en) * | 2015-09-24 | 2016-01-13 | 浪潮电子信息产业股份有限公司 | Automatic test system of DC power supply full coverage |
| CN106774260A (en) * | 2016-12-22 | 2017-05-31 | 惠州华阳通用电子有限公司 | The automatic test approach and its system of on-board air conditioner controller |
| CN107656126A (en) * | 2017-08-18 | 2018-02-02 | 惠州市德赛西威汽车电子股份有限公司 | Vehicle audio quiescent current automated testing method and system based on CAN |
| CN110146755A (en) * | 2019-05-16 | 2019-08-20 | 德凯认证服务（苏州）有限公司 | A kind of automotive electronics electric performance test circuit system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104049202A (en) * | 2014-06-27 | 2014-09-17 | 奇瑞汽车股份有限公司 | Method for evaluating parasitic currents of automobile electrical appliance circuits |
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| CN106774260A (en) * | 2016-12-22 | 2017-05-31 | 惠州华阳通用电子有限公司 | The automatic test approach and its system of on-board air conditioner controller |
| CN106774260B (en) * | 2016-12-22 | 2019-06-21 | 惠州华阳通用电子有限公司 | The automatic test approach and its system of on-board air conditioner controller |
| CN107656126A (en) * | 2017-08-18 | 2018-02-02 | 惠州市德赛西威汽车电子股份有限公司 | Vehicle audio quiescent current automated testing method and system based on CAN |
| CN110146755A (en) * | 2019-05-16 | 2019-08-20 | 德凯认证服务（苏州）有限公司 | A kind of automotive electronics electric performance test circuit system |
| CN110146755B (en) * | 2019-05-16 | 2022-03-18 | 德凯认证服务（苏州）有限公司 | Electronic and electrical performance test circuit system for automobile |
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