CN103364681B - A kind of automobile circuit safety test method and solution - Google Patents
A kind of automobile circuit safety test method and solution Download PDFInfo
- Publication number
- CN103364681B CN103364681B CN201310268355.4A CN201310268355A CN103364681B CN 103364681 B CN103364681 B CN 103364681B CN 201310268355 A CN201310268355 A CN 201310268355A CN 103364681 B CN103364681 B CN 103364681B
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- circuit
- fuse
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- wire
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- 238000009781 safety test method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000002159 abnormal effect Effects 0.000 claims abstract description 10
- 238000002679 ablation Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 238000002844 melting Methods 0.000 claims description 6
- 238000011217 control strategy Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 238000012942 design verification Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Fuses (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Incorrect, that fuse selection is improper and control circui strategy causes security hidden trouble is selected in order to solve wire gauge; the invention discloses a kind of automobile circuit safety testing method; its technical scheme carries out the test of stand short-circuit protection to automobile circuit: adopt wire that the power input of load is carried out bonding short circuit; until blown fuse, and in short-circuit process the size of observation circuit electric current and the fusing time of fuse.According to the blown fuse time, in short-circuit process, whether circuit occurs that ablation or abnormal occurrence verify the security of this circuit.For the circuit that there is potential safety hazard, the invention provides corresponding solution.<!--1-->
Description
Technical field
The present invention relates to automobile circuit system field, be specifically related to a kind of automobile circuit safety test method and solution.
Background technology
Hyundai Motor electrical arrangement is more and more higher, and automobile circuit system becomes increasingly complex, simultaneously consumer to the reliability of automobile and the requirement of security also more and more higher.Automobile circuit system, as vehicle key parts, not only in normal operating conditions for each system provides power supply and transmission of signal, and will should possess the ability protecting each load and self-protection under possible abnormal conditions.Specification, the length of wire must meet design requirement, and suitable fuse must be had in circuit to come guardwire and other loads.If automobile circuit system wire gauge selects incorrect or fuse selection is improper, when line short or loaded work piece cause electric current excessive extremely, may occur wire cause thermal damage, serious conditions there will be ablation, burns car phenomenon.
Summary of the invention
The object of the present invention is to provide a kind of automobile circuit safety test method and solution, circuit design stage by bench test to wire gauge and length, wire gauge and fuse capacity mate and control circui strategy carries out design verification, with the rationality of analysis verification automobile circuit system design and reliability, avoid occurring circuit ablation, burning car.
Adopt wire the power input of load is carried out bonding short circuit, until blown fuse, and in short-circuit process the size of observation circuit electric current and the fusing time of fuse.According to the blown fuse time, in short-circuit process, whether circuit occurs that ablation or abnormal occurrence verify the security of this circuit.
Concrete technical scheme is as follows:
A kind of automobile circuit safety test method, adopts following steps:
(1) adopt wire that the power input of load is carried out bonding short circuit;
(2) until blown fuse;
(3) size of observation circuit electric current and the fusing time of fuse in short-circuit process;
(4) according to the blown fuse time, in short-circuit process, whether circuit occurs that ablation or abnormal occurrence verify the security of this circuit.
Further, comprise the steps: further in step (1)
By all line arrangements on stand, connect accumulator;
D.C. regulated power supply is received the generator end of circuit, simulation generator powered;
Pincerlike data collecting instrument is clipped on the power input of load or the wire of bonding end;
With short circuit wire by the load power source input pin in UUT and bonding pin short circuit.
Further, described more than short circuit conductor length 10cm, thicker than wire gauge to be verified 30%.
Further, the specification of described short circuit wire is 4mm
2.
Further, when having relay in circuit to be measured, being pulled out and being used the contact of wire short circuit relay switch.
Further, step (4) is further: the fusing time of fast melting fuse should be not more than 100ms, and the fusing time of slow-melting fuse should be not more than 1s.
Further, before step (1), also step is checked as follows:
A. measure in circuit to be measured and whether have circuit, guarantee that circuit is normal;
B. pull out the fuse on circuit to be measured, then measure on this circuit whether have electric current, prevent testing front circuit abnormal.
Further, described UUT is right seat heating connector.
Further, after this step, till fuse FB-02 fuses, record the maximal value of short-circuit current and the fusing time of fuse.
Circuit in above-mentioned automobile circuit safety test method is occurred that exception or blown fuse time exceed the solution that there is the circuit of potential safety hazard of desired value, adopts following steps:
1) rated capacity of fuse is reduced;
2) wire gauge of circuit is increased;
3) change line alignment, reduce line length;
4) control strategy of load is optimized.
Compared with currently available technology, the present invention, by a kind of Bench test methods, improves the reasonable of automobile circuit system design
Property and reliability.
Accompanying drawing explanation
Fig. 1 is the short-circuiting method of short-circuit protection of the present invention test
Embodiment
Describe the present invention with reference to the accompanying drawings below, it is a kind of preferred embodiment in numerous embodiments of the present invention.
In a preferred embodiment, by all line arrangements on stand, connect accumulator, and D.C. regulated power supply is received the generator end of circuit, simulation generator powered.If any relay in circuit to be measured, pulled out and used the contact of wire short circuit relay switch.Pincerlike data collecting instrument is clipped on the power input of load or the wire of bonding end.
Select that more than 10cm is long, (in this example, the specification of short circuit wire is 4mm as short circuit wire for the wire of thicker than wire gauge to be verified 30%
2).With this short circuit wire by the load power source input pin on right seat heating connector and bonding pin short circuit, till fuse FB-02 fuses, record the maximal value of short-circuit current and the fusing time of fuse.
In the present invention, should check as follows before each short-circuit protection test:
1) measure in circuit to be measured whether have circuit, guarantee that circuit is normal;
2) pull out the fuse on circuit to be measured, then measure on this circuit whether have electric current, prevent testing front circuit abnormal;
According to blown fuse time, circuit, whether the present invention occurs that ablation or abnormal occurrence judge whether this circuit exists potential safety hazard.The fusing time of fast melting fuse should be not more than 100ms, and the fusing time of slow-melting fuse should be not more than 1s.Case Experiments On A result of the present invention, the maximum 270A of short-circuit current, blown fuse time 62ms, in short circuit process, circuit is without ablation or abnormal occurrence.It is suitable, reasonable in design, reliable that the wire gauge of this circuit and fuse capacity are selected.
Circuit is occurred that exception or blown fuse time exceed the circuit that there is potential safety hazard of desired value, the invention provides following solution:
1) rated capacity of fuse is reduced;
2) wire gauge of circuit is increased;
3) change line alignment, reduce line length;
4) control strategy of load is optimized.
By technical scheme of the present invention, the security of automobile circuit system can be verified in the design phase, Timeliness coverage, solve the circuit that there is potential safety hazard, improve rationality and the reliability of automobile circuit system design.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technical scheme is carried out; or directly apply to other occasion, all within protection scope of the present invention without improving.
Claims (7)
1. an automobile circuit safety test method, is characterized in that, adopts following steps:
(1) adopt short circuit wire that the power input of load is carried out bonding short circuit, be specially:
By all line arrangements on stand, connect accumulator;
D.C. regulated power supply is received the generator end of circuit, simulation generator powered;
Pincerlike data collecting instrument is clipped on the power input of load or the wire of bonding end;
With short circuit wire by the load power source input pin in UUT and bonding pin short circuit;
(2) until blown fuse;
(3) size of observation circuit electric current and the fusing time of fuse in short-circuit process;
(4) according to the blown fuse time, in short-circuit process, whether circuit occurs that ablation or abnormal occurrence verify the security of this circuit, the fusing time of fast melting fuse should be not more than 100ms, and the fusing time of slow-melting fuse should be not more than 1s;
Before described step (1), also check step as follows:
A. measure in circuit to be measured and whether have circuit, guarantee that circuit is normal;
B. pull out the fuse on circuit to be measured, then measure on this circuit whether have electric current, prevent testing front circuit abnormal.
2. automobile circuit safety test method as claimed in claim 1, is characterized in that, described more than short circuit conductor length 10cm, thicker than wire gauge to be verified 30%.
3. automobile circuit safety test method as claimed in claim 2, it is characterized in that, the specification of described short circuit wire is 4mm
2.
4. the automobile circuit safety test method according to any one of claim 1-3, is characterized in that, when having relay in circuit to be measured, being pulled out and using the contact of wire short circuit relay switch.
5. the automobile circuit safety test method according to any one of claim 1-3, is characterized in that, described UUT is right seat heating connector.
6. automobile circuit safety test method as claimed in claim 5, is characterized in that, after step (1), till described blown fuse, record the maximal value of short-circuit current and the fusing time of fuse.
7. circuit in automobile circuit safety test method according to any one of claim 1-6 is occurred that exception or blown fuse time exceed the solution that there is the circuit of potential safety hazard of desired value, it is characterized in that, adopt following steps:
1) rated capacity of fuse is reduced;
2) wire gauge of circuit is increased;
3) change line alignment, reduce line length;
4) control strategy of load is optimized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310268355.4A CN103364681B (en) | 2013-06-29 | 2013-06-29 | A kind of automobile circuit safety test method and solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310268355.4A CN103364681B (en) | 2013-06-29 | 2013-06-29 | A kind of automobile circuit safety test method and solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103364681A CN103364681A (en) | 2013-10-23 |
| CN103364681B true CN103364681B (en) | 2016-04-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310268355.4A Active CN103364681B (en) | 2013-06-29 | 2013-06-29 | A kind of automobile circuit safety test method and solution |
Country Status (1)
| Country | Link |
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| CN (1) | CN103364681B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107167691B (en) * | 2017-05-22 | 2020-10-09 | 奇瑞汽车股份有限公司 | Automobile grounding analysis test system and test method thereof |
| CN113325251B (en) * | 2021-05-11 | 2022-06-24 | 一汽奔腾轿车有限公司 | Method and system for testing matching degree of fuse and wire for automobile wire harness |
-
2013
- 2013-06-29 CN CN201310268355.4A patent/CN103364681B/en active Active
Non-Patent Citations (5)
| Title |
|---|
| 整车电路系统短路测试优化方案介绍;张华春 等;《汽车电器》;20130220(第12期);第1页第2栏第5行-第2页第2栏第21行 * |
| 汽车电路系统短路测试;纪云伟;《2012安徽省汽车工程学会年会论文集》;20130131;第4页第1行-第4行 * |
| 汽车电路设计中的保险设置;毛亚岐;《2012安徽省汽车工程学会年会论文集》;20130131;全文 * |
| 浅谈汽车电路故障测试技术;文成;《科学之友》;20120430(第7期);第1页第1栏第12行-第2页第2栏第11行、图3 * |
| 现代汽车电路故障的测试;蒋开正 等;《考试周刊》;20091231(第42期);全文 * |
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| CN103364681A (en) | 2013-10-23 |
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