CN203069693U - Electric vehicle high-voltage electrical fault dynamic simulation test system - Google Patents
Electric vehicle high-voltage electrical fault dynamic simulation test system Download PDFInfo
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- CN203069693U CN203069693U CN 201220681829 CN201220681829U CN203069693U CN 203069693 U CN203069693 U CN 203069693U CN 201220681829 CN201220681829 CN 201220681829 CN 201220681829 U CN201220681829 U CN 201220681829U CN 203069693 U CN203069693 U CN 203069693U
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Abstract
The utility model provides an electric vehicle high-voltage electrical fault dynamic simulation test system. The electric vehicle high-voltage electrical fault dynamic simulation test system comprises the following components of: a fault instruction output unit used for emitting fault instructions; a plurality of fault injection units used for injecting a plurality of faults simultaneously or in a time-delay manner according to the fault instructions; a plurality of signal detection units used for acquiring electrical parameters and non electrical parameters of a position to be detected; a signal recording unit used for recording electrical parameters and non electrical parameters of a plurality of fault points before and after the occurrence of faults, wherein the electrical parameters and the non electrical parameters are acquired by the plurality of signal detection units; a data analyzing and processing unit used for analyzing and processing recorded electrical parameters and non electrical parameters; a data output unit used for transmitting or printing and outputting data or graphics in the data analyzing and processing unit; an energy simulation unit used for simulating a situation where a fuel cell stack provides direct current to a PCU controller; and a working condition simulation unit used for simulating actual working conditions of vehicles. The test system can satisfy the requirement of finished vehicle electrical fault dynamic simulation tests of all electrical vehicles.
Description
Technical field
The utility model relates to a kind of dynamic analog test system, particularly relates to a kind of electric automobile high-voltage electrical apparatus fault dynamic analog test system.
Background technology
At present, in new-energy automobile, people more are primarily focused on motor, battery and the electronic control technology, and in actual applications, also have a very important parts system---high-voltage electric system.In electric automobile, the effect of high-voltage electric system is fuel cell, drive electronic components and parts, parts, and motor etc. all connects together, compare with the traditional fuel automobile, the new forms of energy car mixes (voltage main road 120V even higher to 144V), complete mix (cell voltage is 288V-360V) from slight mixing (battery of 12V or 14V), moderate, in the process of all-electric car development, voltage also raises step by step, makes high-voltage electric system face problems.The parts that high-voltage electric system relates to comprise high pressure wire harness, connector and electric distribution system.
Electric automobile is the important directions that realizes the auto industry sustainable development.The advantage that mixed power electric car instrument form is flexible, exploitativeness is strong becomes one of important directions of electric automobile research and development in this century.As the kernel control chip of hybrid vehicle, PCU(Power Control Unit, power assembly control module) controller is the key link of mixed power electric car exploitation.New-energy electric vehicle has had large increase with respect to electric pressure and the loaded current of traditional vehicle electrical system, therefore, correctness, the reliability of the high-pressure system design of electric automobile are extremely important to traffic safety, and automobile industry does not also have ripe research technique to do the verification experimental verification of this respect at present.How basis is to fault and related data in complete vehicle test and the illustrative operation, realizes recurrence of failure, improves former scheme and realizes checking, carries out the health degree of electric automobile high-voltage electric system and diagnoses, and becomes problem demanding prompt solution.
The utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model are to provide a kind of electric automobile high-voltage electrical apparatus fault dynamic analog test system, and this pilot system can satisfy the car load electric fault dynamic simulant test of all electric automobiles.
Reach other relevant purposes for achieving the above object, the utility model provides a kind of electric automobile high-voltage electrical apparatus fault dynamic analog test system, the permagnetic synchronous motor that described high-voltage electric system comprises pcu controller, is electrically connected with pcu controller, it comprises with the lower part:
Fault instruction output unit is used for sending the fault instruction;
A plurality of faults are injected the unit, are electrically connected respectively with a plurality of trouble spots in the high-voltage electric system, come simultaneously or a plurality of faults are injected in time-delay according to the fault instruction of fault instruction output unit output;
A plurality of detecting signal units insert detecting signal unit respectively in the position a plurality of to be detected of high-voltage electric system, are used for gathering electric parameter and the non-electric parameter of position to be detected;
Signal record ripple unit is used for electric parameter and the non-electric parameter that gather at a plurality of detecting signal units of the front and back process that breaks down a plurality of trouble spots of real time record;
The data analysis processing unit is used for electric parameter and the non-electric parameter of the unit typing of signal record ripple are analyzed, compare, put in order, but and compile data or the figure of intuitive analysis;
The data output unit is for data or the figure of transmission or print output data analysis and processing unit;
Energy analogue unit is electrically connected with pcu controller, is used for analog fuel battery pile and supplies direct current to pcu controller;
The Work condition analogue unit is electrically connected with permagnetic synchronous motor, is used for the simulating vehicle actual condition.
Preferably, described Work condition analogue unit is electric dynamometer.
Preferably, described energy analogue unit is control direct supply able to programme.
Preferably, it is 3 that described fault is injected the unit, and each fault is injected the trouble spot that the unit connects one of high-voltage electric system.
Preferably, described non-electric parameter comprises environmental parameter.
Preferably, described high-voltage electric system also comprises power accumulator, and described power accumulator charges by charging set.
Preferably, the working power of described pcu controller is the 12V accumulator.
As mentioned above, electric automobile high-voltage electrical apparatus fault dynamic analog test of the present utility model system, can satisfy the car load electric fault dynamic simulant test of all electric drive automobiles, as the electric automobile short circuit, open circuit, unusual electric faults such as overcurrent, overvoltage, under-voltage, failure of insulation, connection inefficacy.
Description of drawings
Fig. 1 is shown as the synoptic diagram of the utility model electric automobile high-voltage electrical apparatus fault dynamic analog test system.
The number in the figure explanation
Embodiment
Below by particular specific embodiment embodiment of the present utility model is described, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this instructions.
See also Fig. 1.Notice, the appended graphic structure that illustrates of this instructions, ratio, size etc., equal contents in order to cooperate instructions to disclose only, understand and reading for person skilled in the art scholar, be not in order to limit the enforceable qualifications of the utility model, so technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not influencing under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and get in the scope that can contain.Simultaneously, quote in this instructions as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under no essence change technology contents, when also being considered as the enforceable category of the utility model.
As shown in Figure 1, a kind of electric automobile high-voltage electrical apparatus fault dynamic analog test system, high-voltage electric system comprise pcu controller 3, with the permagnetic synchronous motor 4 that pcu controller 3 is electrically connected, described simulation experiment system comprises with the lower part:
Fault instruction output unit 7 is used for sending the fault instruction, and this unit can directly be clicked fault type and position by computer screen and realize the fault output action based on specialized application software on test philosophy figure;
A plurality of faults are injected the unit, and present embodiment is chosen 3 faults and injected unit 81,82,83, respectively with high-voltage electric system
(concrete grammar is the lead at trouble spot a place to be disconnected extracting be wired to fault injection unit 81 for representational 3 trouble spot a, b, c electrical connection in the circuit, the lead at trouble spot b place is disconnected extraction be wired to fault injection unit 82, the lead at trouble spot c place is disconnected extraction be wired to fault injection unit 83), the fault instruction of sending according to fault instruction output unit 7 comes while or time-delay to inject a plurality of faults, as injecting 3 faults simultaneously, also can single fault inject respectively;
A plurality of detecting signal units 91,92,93, position e to be detected, f, g in high-voltage electric system insert detecting signal unit 91,92,93 respectively, the electric parameter (electric current, voltage, frequency, power and reactance etc.) and the non-electric parameter that are used for collection position e to be detected, f, g (comprise environmental parameter, as time, temperature etc.) numeral or simulating signal, position to be detected is not limited to e, f, this three place of g, can arrange a plurality of as required;
Signal record ripple unit 10 is used for electric parameter and non-electric parameter that real time record trouble spot a, b, c gather at the front and back process detecting signal unit 91,92,93 that breaks down;
Data analysis processing unit 11 is used for electric parameter and the non-electric parameter of unit 10 typings of signal record ripple are analyzed, compare, put in order, but and compile data or the figure of intuitive analysis;
Work condition analogue unit 14 is electrically connected with permagnetic synchronous motor 4, is used for the simulating vehicle actual condition.
Wherein, energy analogue unit 13 is preferably control direct supply able to programme, and Work condition analogue unit 14 is preferably electric dynamometer.
As shown in Figure 1, high-voltage electric system in the utility model also comprises power accumulator 1, power accumulator 1 is by charging set 2 chargings, for direct current, pcu controller 3 drives electric dynamometer 14 by permagnetic synchronous motor 4 after converting direct current to alternating current to pcu controller 3 for power accumulator 1 and energy analogue unit 13.
As shown in Figure 1, also have two first load 6(such as air-conditioning etc. on the described pcu controller 3), and the working power of pcu controller 3 is 12V accumulator 5, described pcu controller 3 includes DC/DC(direct current, direct current becomes direct current, low pressure rising pressure), WC(water control, water pump controller), DCL(direct current low, direct current becomes direct current, high voltage variable low pressure be used for to be given 12V charge in batteries usefulness), high tension apparatus such as AC-DC conversion module, permagnetic synchronous motor control module.
The dotted line of band arrow is fault input and detection signal outlet line among Fig. 1, and solid connecting line is high-voltage electric system internally-powered wire harness, and the trouble spot just is selected on these power wire harness.
The method of utilizing electric automobile high-voltage electrical apparatus fault dynamic analog test of the present utility model system to simulate is as follows:
A. fault instruction output unit 7 output faults are instructed and are injected unit 81,82,83 to each fault;
B. many fault injection unit 81,82, the 83 fault instructions according to 7 outputs of fault instruction output unit come while or time-delay to inject a plurality of faults;
C. many detecting signal units 91,92,93 are gathered a plurality of position e to be detected, f, g electric parameter and the non-electric parameter under nonserviceabling in the high-voltage electric system loop respectively;
D. signal is recorded a plurality of trouble spot a of ripple unit 10 real time record, b, c a plurality of detecting signal units are gathered in the front and back process that breaks down electric parameter and non-electric parameter;
E. electric parameter and the non-electric parameter of typing analyzed, compares, put in order in 11 pairs of signal records of data analysis processing unit ripple unit 10, but and compile data or the figure of intuitive analysis, these data or figure are handled by specific software, can intuitively read or judge after the processing;
F. data or the figure in data output unit 12 transmission or the print output data analysis and processing unit 11.
Electric automobile high-voltage electrical apparatus fault dynamic analog test of the present utility model system adopts the method simulated power electronic unit (for example the AC-DC conversion module in the pcu controller, permagnetic synchronous motor control module constant power electronic unit) of physical simulation (being different from Digital Simulation), reaches the requirement that revision test in the time of can satisfying extreme test does not influence the external characteristics of power electronics unit again; Using control direct supply able to programme replaces fuel cell pile to participate in the dynamic similation of electric fault; Electric dynamometer is inserted the various working conditions of measurand partial simulation car load; When this pilot system can be accomplished the multiple spot fault or the accurate realization of time-delay, can satisfy the car load electric fault dynamic simulant test of all electric drive automobiles, as the electric automobile short circuit, open circuit, unusual electric faults such as overcurrent, overvoltage, under-voltage, failure of insulation, connection inefficacy.
Analyze (DFMEA analysis) based on major failure failure mode and fault effects to the electric automobile high-voltage electric system, take Corresponding Countermeasures from technical scheme, verify the correctness of these change designs, validity, and truly analyze test car each system electrical parameter under fault by electric automobile high-voltage electrical apparatus fault dynamic simulant test of the present utility model and change, for the design optimization reference, and utilize system platform of the present utility model, can analyse in depth the fault signature (failure mechanism and fault somatotype) of each critical component under actual condition, the robustness of checking car load safety control strategy, ageing and provide foundation by test for relevant staking-out work.
The utility model is realized recurrence of failure according to fault and related data in complete vehicle test and the illustrative operation, improves former scheme and realizes checking; Can do diagnosis to the health degree of high-voltage electric system by this platform, the anticipation fault trend, progressively set up electric automobile electrical system health degree appraisement system, system of the present utility model can satisfy the car load electric fault dynamic simulant test of all electric drive automobiles, solves the correctness of electric automobile high voltage unit design, the verification experimental verification problem of reliability aspect.
By this simulation experiment system platform, for example can verify the safety Design (checking of the parameter matching between parts selection, subsystem, the safety control strategy of whole electrical system etc.) of the high-pressure system of New-energy electric vehicle: after the collision happens, whether the electrical system of vehicle has carried out emergency processing according to the program that we designer considers in advance, if handle correct it can avoid the generation of the secondary disaster after accident takes place to greatest extent; A new energy electric motor vehicle fault in the demonstration operation phase is realized recurrence of failure, find out the defective in the design, thus well designed, and then checking; Can diagnose the high-pressure section health degree of the electrical system of new energy electric motor vehicle based on this system platform, for example the master of system motor (permagnetic synchronous motor 4) is carried out failure mechanism analysis (fault diagnosis, the fault somatotype), by main motor being preset fault (for example the high temperature loss of excitation of magneto is analyzed), after examining main motor to break down, which type of influence it can produce to our whole high-voltage electric system circuit, and how we evade or do the electric automobile electrical safety technical matters which kind of mode processing waits some to look forward to the prospect very much in advance from system perspective by analyzing the back.
Electric automobile high-voltage electrical apparatus fault dynamic analog test of the present utility model system, be based on the high-voltage electric system of car load, it is hardware layer that fault is injected, it is specially designed that whole fault is injected the unit, want the single or multiple of taking into account system fault, while or time delay, it is not the switching between simple wire harness; In measurand, pcu controller needs redesign, makes and for example in the short circuit, can stand the impact of short-circuit current in some extreme faults that it can be reused and can not damage; The utility model is realized the fault injection with electric dynamometer operating mode that is virtually reality like reality (the spectrum input of the road of true collection is entered) under real working condition, belongs in line style, and or not offline model; And, replace electrokinetic cell and fuel cell system to realize the output of energy with control direct supply able to programme in the utility model, simplified system's formation, easy to use.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can be under spirit of the present utility model and category, and above-described embodiment is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of finishing under spirit that the utility model discloses and the technological thought, must be contained by claim of the present utility model.
Claims (7)
1. electric automobile high-voltage electrical apparatus fault dynamic analog test system, described high-voltage electric system comprise pcu controller, with the permagnetic synchronous motor that pcu controller is electrically connected, it is characterized in that, comprise with the lower part:
Fault instruction output unit is used for sending the fault instruction;
A plurality of faults are injected the unit, are electrically connected respectively with a plurality of trouble spots in the high-voltage electric system, come simultaneously or a plurality of faults are injected in time-delay according to the fault instruction of fault instruction output unit output;
A plurality of detecting signal units insert detecting signal unit respectively in the position a plurality of to be detected of high-voltage electric system, are used for gathering electric parameter and the non-electric parameter of position to be detected;
Signal record ripple unit is used for electric parameter and the non-electric parameter that gather at a plurality of detecting signal units of the front and back process that breaks down a plurality of trouble spots of real time record;
The data analysis processing unit is used for electric parameter and the non-electric parameter of the unit typing of signal record ripple are analyzed, compare, put in order, but and compile data or the figure of intuitive analysis;
The data output unit is for data or the figure of transmission or print output data analysis and processing unit;
Energy analogue unit is electrically connected with pcu controller, is used for analog fuel battery pile and supplies direct current to pcu controller;
The Work condition analogue unit is electrically connected with permagnetic synchronous motor, is used for the simulating vehicle actual condition.
2. electric automobile high-voltage electrical apparatus fault dynamic analog test according to claim 1 system is characterized in that described Work condition analogue unit is electric dynamometer.
3. electric automobile high-voltage electrical apparatus fault dynamic analog test according to claim 1 system is characterized in that described energy analogue unit is control direct supply able to programme.
4. electric automobile high-voltage electrical apparatus fault dynamic analog test according to claim 1 system is characterized in that, it is 3 that described fault is injected the unit, and each fault is injected the trouble spot that the unit connects one of high-voltage electric system.
5. electric automobile high-voltage electrical apparatus fault dynamic analog test according to claim 1 system is characterized in that described non-electric parameter comprises environmental parameter.
6. electric automobile high-voltage electrical apparatus fault dynamic analog test according to claim 1 system is characterized in that described high-voltage electric system also comprises power accumulator, and described power accumulator charges by charging set.
7. electric automobile high-voltage electrical apparatus fault dynamic analog test according to claim 1 system is characterized in that the working power of described pcu controller is the 12V accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220681829 CN203069693U (en) | 2012-12-11 | 2012-12-11 | Electric vehicle high-voltage electrical fault dynamic simulation test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220681829 CN203069693U (en) | 2012-12-11 | 2012-12-11 | Electric vehicle high-voltage electrical fault dynamic simulation test system |
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| CN203069693U true CN203069693U (en) | 2013-07-17 |
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| CN 201220681829 Expired - Fee Related CN203069693U (en) | 2012-12-11 | 2012-12-11 | Electric vehicle high-voltage electrical fault dynamic simulation test system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033704A (en) * | 2012-12-11 | 2013-04-10 | 上海汽车集团股份有限公司 | Electric vehicle high-pressure electrical failure dynamic simulation test system and method |
| CN109752653A (en) * | 2017-11-08 | 2019-05-14 | 宝沃汽车（中国）有限公司 | Failure analysis methods, trouble analysis system, electric machine controller and the vehicle of motor power system |
| US11529917B2 (en) | 2020-04-29 | 2022-12-20 | Lear Corporation | Switch arrangement and method for controlling a switch arrangement |
-
2012
- 2012-12-11 CN CN 201220681829 patent/CN203069693U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033704A (en) * | 2012-12-11 | 2013-04-10 | 上海汽车集团股份有限公司 | Electric vehicle high-pressure electrical failure dynamic simulation test system and method |
| CN109752653A (en) * | 2017-11-08 | 2019-05-14 | 宝沃汽车（中国）有限公司 | Failure analysis methods, trouble analysis system, electric machine controller and the vehicle of motor power system |
| US11529917B2 (en) | 2020-04-29 | 2022-12-20 | Lear Corporation | Switch arrangement and method for controlling a switch arrangement |
| US11840183B2 (en) | 2020-04-29 | 2023-12-12 | Lear Corporation | Switch arrangement and method for controlling a switch arrangement |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20191211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |