CN103869175A - System and method for evaluating voltage loss of electric appliance loop of automobile - Google Patents
System and method for evaluating voltage loss of electric appliance loop of automobile Download PDFInfo
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- CN103869175A CN103869175A CN201410106472.5A CN201410106472A CN103869175A CN 103869175 A CN103869175 A CN 103869175A CN 201410106472 A CN201410106472 A CN 201410106472A CN 103869175 A CN103869175 A CN 103869175A
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Abstract
The invention relates to a system and method for evaluating voltage loss of an electric appliance loop of an automobile. The method includes the following steps that firstly, the voltage of the power supply end of the electric appliance loop to be evaluated, the voltage of the power supply end of an electric appliance, the voltage of the grounding end of the electric appliance and the voltage of the grounding end of a power supply are monitored; secondly, the voltage data obtained in the first step are collected in real time; thirdly, the collected data are analyzed and sorted; fourthly, the voltage loss value of the electric appliance loop is worked out; fifthly, the design reasonability of the electric appliance loop of the whole automobile is evaluated so as to achieve optimal design. The method is easy and convenient to implement; by means of the evaluation scheme, the design reasonability of the electric appliance loop of the whole automobile can be effectively evaluated, the optimal design can be achieved, electricity safety of all electric appliance loads can be guaranteed, and interference design will not occur.
Description
Technical field
The present invention relates to automobile circuit system, be specifically related to a kind of car electrics loop voltage loss evaluation system and evaluation method thereof.
Background technology
At present in vehicle circuitry design process, because the existence of the factors such as wire internal resistance, the voltage loss of connector to connecting resistance, the switching of controller internal electric source, cause having certain difference between the real work voltage of electrical appliance and the output voltage of car load electric power system, whether be optimal design in order to pass judgment on electrical appliance end real work voltage, need to set up the evaluation method of a set of car electrics loop voltage loss.
At present there is no a kind of perfect test and the side of evaluationing for the voltage loss of car load electrical circuit, in real work, our Exploration and conclusion test and the evaluation method of voltage loss of a set of feasible loop voltage loss.
Summary of the invention
The object of the present invention is to provide a kind of car electrics loop voltage loss evaluation system and evaluation method thereof, by the in good time acquisition system of one, measure the voltage loss of electrical circuit in normal work, and pass judgment on the quality of design proposal according to test result.
By monitoring the voltage of power end, electrical appliance power end, electrical appliance earth terminal and power ground end of tested electrical circuit, calculate the voltage loss in whole loop, thereby pass judgment on the rationality of design proposal.By the Real-time Collection of the voltage to each electrical circuit power end and earth terminal, the data analysis gathering is arranged, calculate the voltage loss value of electrical circuit, thereby pass judgment on the rationality of each electrical circuit design of car load, thereby realize optimized design.
Concrete technical scheme is as follows:
A kind of car electrics loop voltage loss evaluation system, comprise battery terminal negative voltage acquisition point, battery positive voltage voltage acquisition point, load power source terminal voltage collection point, load earth terminal voltage acquisition point, data acquisition equipment, battery positive voltage voltage acquisition line, battery terminal negative voltage acquisition line, load power source terminal voltage gathers line, and load earth terminal voltage acquisition line, wherein, battery terminal negative voltage acquisition point and battery positive voltage voltage acquisition point are for gathering the both positive and negative polarity voltage of accumulator, load power source terminal voltage collection point and load earth terminal voltage acquisition point are used for gathering load power source end and earth terminal voltage, battery positive voltage voltage acquisition line and battery terminal negative voltage acquisition line gather the voltage of battery terminal negative voltage acquisition point and battery positive voltage voltage acquisition point, load power source terminal voltage gathers line and load earth terminal voltage acquisition line is used for the voltage of load power source terminal voltage collection point and load earth terminal voltage acquisition point to gather, data acquisition equipment connect and for obtaining the magnitude of voltage of each collection point.
Further, also comprise power distribution center, it is connected to battery positive voltage voltage acquisition point by wire harness plug terminal.
Further, also comprise control module, its one end is connected to power distribution center by wire harness plug terminal, and the other end is connected to and is used electric loading by wire harness plug terminal.
A kind of car electrics loop voltage loss evaluation method, comprises the steps:
(1) monitor the voltage of power end, electrical appliance power end, electrical appliance earth terminal and the power ground end of tested electrical circuit;
(2) voltage data described in Real-time Collection step (1);
(3) data analysis gathering is arranged;
(4) calculate the voltage loss value of electrical circuit;
(5) pass judgment on the rationality of car load electrical circuit design and realize optimized design.
Further, in step (4), obtain the voltage loss Up of electrical circuit power supply and the voltage loss Ug of earth terminal by calculating, thereby determine the voltage loss Ua in whole loop.
Further, step (1) also comprises the design object value Uob that formulates electrical circuit before.
Further, the design object value Uob that formulates electrical circuit comprises the steps: to arrange out the electrical circuit wiring diagram by electric loading, comprise wire harness plug terminal, switch, power distribution center and control module information, calculate the loop voltage loss value Ual of this loop theory according to above-mentioned information, make the design object value Uob in this loop according to the operating voltage characteristic requirements of Ual and this use electric loading.
Further, in step (1), comprise the steps: to utilize frequency acquisition to be not less than the data acquisition equipment of 10Hz on real vehicle or real vehicle stand, battery terminal negative voltage acquisition point, load earth terminal voltage acquisition point, battery positive voltage voltage acquisition point, load power source terminal voltage collection point are gathered to line by battery terminal negative voltage acquisition line, load earth terminal voltage acquisition line, battery positive voltage voltage acquisition line, load power source terminal voltage and gather average voltage Ug1, Ug2, Up1, the Up2 of each point within a period of time.
Further, comprise the steps: the voltage loss Ug by calculating this loop earth terminal in step (3), Ug is obtained by Ug2-Ug1; The voltage loss Up that calculates this ring current, Up is obtained by Up1-Up2; The voltage loss Ua that calculates whole loop, Ua is obtained by Up+Ug; Ua is by the virtual voltage loss of side loop, and the voltage loss actual measurement voltage loss Ua in this loop is compared with the voltage loss design object value Uob in theoretical this loop of calculating, and can evaluate the rationality of this loop design.
Further, according to evaluation result, revise and change back trend, wire diameter or the steering logic on road, thereby realize the optimized object of this loop design.
Compared with currently available technology, the present invention, by a kind of acquisition system in good time, measures the voltage loss of electrical circuit in normal work, and passes judgment on the quality of design proposal according to test result.Method is simple, can effectively evaluate and test the rationality of car load electrical circuit design by evaluation of programme of the present invention, can realize optimized design, guarantees the Electrical Safety of each electrical appliance load and there will not be interference design.
Accompanying drawing explanation
Fig. 1 is car electrics loop voltage loss evaluation system schematic diagram of the present invention
In figure:
1. battery terminal negative voltage acquisition is put 2. accumulator 3. battery positive voltage voltage acquisition points
4. wire harness plug terminal 5. power distribution center 6. switches
7. control module 8. load power source terminal voltage collection point 9. use electric loadings
10. load earth terminal voltage acquisition is put 11. load earth point 12. data acquisition equipments
13. battery positive voltage voltage acquisition line 14. battery terminal negative voltage acquisition lines
15. load power source terminal voltages gather line 16. load earth terminal voltage acquisition lines
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.
As shown in Figure 1, strategy of the present invention is as follows: respectively by battery terminal negative voltage acquisition line 14, load earth terminal voltage acquisition line 16, battery positive voltage voltage acquisition line 13, load power source terminal voltage gathers line 15 to battery terminal negative voltage acquisition point 1, load earth terminal voltage acquisition point 10, battery positive voltage voltage acquisition point 3, the voltage of load power source terminal voltage collection point 8 gathers, obtained the magnitude of voltage of each collection point by data acquisition equipment 12, obtain the voltage loss Up of this ring current and the voltage loss Ug of earth terminal by calculating again, thereby determine the voltage loss Ua in whole loop, this numerical value and Definition of design value are compared, judge the rationality of design.
As shown in Figure 1, arrange out the electrical circuit wiring diagram by electric loading 9, comprising information such as wire harness plug terminal 4, switch 6, power distribution center 5, control modules 7, calculate the loop voltage loss value Ual of this loop theory according to these information, make the design object value Uob in this loop according to the operating voltage characteristic requirements of Ual and this use electric loading 9.Then on real vehicle or on real vehicle stand, utilize frequency acquisition to be not less than the data acquisition equipment 12 of 10Hz, battery terminal negative voltage acquisition point 1, load earth terminal voltage acquisition point 10, battery positive voltage voltage acquisition point 3, load power source terminal voltage collection point 8 are gathered to line 15 by battery terminal negative voltage acquisition line 14, load earth terminal voltage acquisition line 16, battery positive voltage voltage acquisition line 13, load power source terminal voltage and gather average voltage Ug1, Ug2, Up1, the Up2 of each point within a period of time; By calculating the voltage loss Ug of this loop earth terminal, Ug is obtained by Ug2-Ug1; The voltage loss Up that calculates this ring current, Up is obtained by Up1-Up2.The voltage loss Ua that calculates again whole loop, Ua is obtained by Up+Ug.Ua is by the virtual voltage loss of side loop, and the voltage loss actual measurement voltage loss Ua in this loop is compared with the voltage loss design object value Uob in theoretical this loop of calculating, and can evaluate the rationality of this loop design.
According to evaluation result, revise and change back trend, wire diameter or the steering logic on road, thereby realize the optimized object of this loop design.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as the various improvement that 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. a car electrics loop voltage loss evaluation system, it is characterized in that, comprise battery terminal negative voltage acquisition point, battery positive voltage voltage acquisition point, load power source terminal voltage collection point, load earth terminal voltage acquisition point, data acquisition equipment, battery positive voltage voltage acquisition line, battery terminal negative voltage acquisition line, load power source terminal voltage gathers line, and load earth terminal voltage acquisition line, wherein, battery terminal negative voltage acquisition point and battery positive voltage voltage acquisition point are for gathering the both positive and negative polarity voltage of accumulator, load power source terminal voltage collection point and load earth terminal voltage acquisition point are used for gathering load power source end and earth terminal voltage, battery positive voltage voltage acquisition line and battery terminal negative voltage acquisition line gather the voltage of battery terminal negative voltage acquisition point and battery positive voltage voltage acquisition point, load power source terminal voltage gathers line and load earth terminal voltage acquisition line is used for the voltage of load power source terminal voltage collection point and load earth terminal voltage acquisition point to gather, data acquisition equipment connect and for obtaining the magnitude of voltage of each collection point.
2. car electrics loop voltage loss evaluation system as claimed in claim 1, is characterized in that, also comprise power distribution center, it is connected to battery positive voltage voltage acquisition point by wire harness plug terminal.
3. car electrics loop voltage loss evaluation system as claimed in claim 2, is characterized in that, also comprise control module, its one end is connected to power distribution center by wire harness plug terminal, and the other end is connected to and is used electric loading by wire harness plug terminal.
4. a car electrics loop voltage loss evaluation method, is characterized in that, comprises the steps:
(1) monitor the voltage of power end, electrical appliance power end, electrical appliance earth terminal and the power ground end of tested electrical circuit;
(2) voltage data described in Real-time Collection step (1);
(3) data analysis gathering is arranged;
(4) calculate the voltage loss value of electrical circuit;
(5) pass judgment on the rationality of car load electrical circuit design and realize optimized design.
5. car electrics loop voltage loss evaluation method as claimed in claim 4, is characterized in that, in step (4), obtains the voltage loss Up of electrical circuit power supply and the voltage loss Ug of earth terminal by calculating, thereby determines the voltage loss Ua in whole loop.
6. the car electrics loop voltage loss evaluation method as described in claim 4 or 5, is characterized in that, step (1) also comprises the design object value Uob that formulates electrical circuit before.
7. car electrics loop voltage loss evaluation method as claimed in claim 6, it is characterized in that, the design object value Uob that formulates electrical circuit comprises the steps: to arrange out the electrical circuit wiring diagram by electric loading, comprise wire harness plug terminal, switch, power distribution center and control module information, calculate the loop voltage loss value Ual of this loop theory according to above-mentioned information, make the design object value Uob in this loop according to the operating voltage characteristic requirements of Ual and this use electric loading.
8. the car electrics loop voltage loss evaluation method as described in any one in claim 4-7, it is characterized in that, in step (1), comprise the steps: to utilize frequency acquisition to be not less than the data acquisition equipment of 10Hz on real vehicle or real vehicle stand, to battery terminal negative voltage acquisition point, load earth terminal voltage acquisition point, battery positive voltage voltage acquisition point, load power source terminal voltage collection point is by battery terminal negative voltage acquisition line, load earth terminal voltage acquisition line, battery positive voltage voltage acquisition line, load power source terminal voltage gathers line and gathers the average voltage Ug1 of each point within a period of time, Ug2, Up1, Up2.
9. the car electrics loop voltage loss evaluation method as described in any one in claim 4-8, is characterized in that, comprises the steps: the voltage loss Ug by calculating this loop earth terminal in step (3), and Ug is obtained by Ug2-Ug1; The voltage loss Up that calculates this ring current, Up is obtained by Up1-Up2; The voltage loss Ua that calculates whole loop, Ua is obtained by Up+Ug; Ua is by the virtual voltage loss of side loop, and the voltage loss actual measurement voltage loss Ua in this loop is compared with the voltage loss design object value Uob in theoretical this loop of calculating, and can evaluate the rationality of this loop design.
10. the car electrics loop voltage loss evaluation method as described in any one in claim 4-9, is characterized in that, according to evaluation result, revises and changes back trend, wire diameter or the steering logic on road, thereby realize the optimized object of this loop design.
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| CN201410106472.5A CN103869175B (en) | 2014-03-20 | 2014-03-20 | A kind of car electrics loop voltage loss detecting system and detection method thereof |
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| CN201410106472.5A CN103869175B (en) | 2014-03-20 | 2014-03-20 | A kind of car electrics loop voltage loss detecting system and detection method thereof |
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| CN103869175A true CN103869175A (en) | 2014-06-18 |
| CN103869175B CN103869175B (en) | 2016-08-17 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206239A (en) * | 2007-08-01 | 2008-06-25 | 许之端 | Method for real-time measurement of matching net wire loss |
| CN101330225A (en) * | 2008-07-08 | 2008-12-24 | 奇瑞汽车股份有限公司 | Apparatus for monitoring high voltage output of power battery |
| CN101412387A (en) * | 2007-10-18 | 2009-04-22 | 株式会社电装 | Vehicle-use power supply management apparatus |
| CN101509965A (en) * | 2009-02-27 | 2009-08-19 | 无锡市晶源微电子有限公司 | Zero electric voltage detecting and compensating apparatus for programmable power supply of simulation test system |
| CN201594111U (en) * | 2009-12-31 | 2010-09-29 | 宁波华德汽车零部件有限公司 | Device for automatically testing voltage drop of fuse holder of automobile |
| US20110169448A1 (en) * | 2008-09-26 | 2011-07-14 | Toyota Jidosha Kabushiki Kaisha | Electrically-driven vehicle and method for controlling charging of electrically-driven vehicle |
| CN103001265A (en) * | 2011-09-08 | 2013-03-27 | 北汽福田汽车股份有限公司 | High-voltage output electrical box for power battery |
-
2014
- 2014-03-20 CN CN201410106472.5A patent/CN103869175B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206239A (en) * | 2007-08-01 | 2008-06-25 | 许之端 | Method for real-time measurement of matching net wire loss |
| CN101412387A (en) * | 2007-10-18 | 2009-04-22 | 株式会社电装 | Vehicle-use power supply management apparatus |
| CN101330225A (en) * | 2008-07-08 | 2008-12-24 | 奇瑞汽车股份有限公司 | Apparatus for monitoring high voltage output of power battery |
| US20110169448A1 (en) * | 2008-09-26 | 2011-07-14 | Toyota Jidosha Kabushiki Kaisha | Electrically-driven vehicle and method for controlling charging of electrically-driven vehicle |
| CN101509965A (en) * | 2009-02-27 | 2009-08-19 | 无锡市晶源微电子有限公司 | Zero electric voltage detecting and compensating apparatus for programmable power supply of simulation test system |
| CN201594111U (en) * | 2009-12-31 | 2010-09-29 | 宁波华德汽车零部件有限公司 | Device for automatically testing voltage drop of fuse holder of automobile |
| CN103001265A (en) * | 2011-09-08 | 2013-03-27 | 北汽福田汽车股份有限公司 | High-voltage output electrical box for power battery |
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