CN102324761A - Quick charge safety protection mechanism of electric vehicle and control method thereof - Google Patents
Quick charge safety protection mechanism of electric vehicle and control method thereof Download PDFInfo
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- CN102324761A CN102324761A CN201110239414A CN201110239414A CN102324761A CN 102324761 A CN102324761 A CN 102324761A CN 201110239414 A CN201110239414 A CN 201110239414A CN 201110239414 A CN201110239414 A CN 201110239414A CN 102324761 A CN102324761 A CN 102324761A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000011449 brick Substances 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 206010014357 Electric shock Diseases 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 239000000155 melt Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
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Abstract
The invention provides a quick charge safety protection mechanism of an electric vehicle and a control method thereof, so that the safety of a quick charge interface is ensured and electric shock is prevented. The quick charge safety protection mechanism of the electric vehicle comprises a battery management system, a quick charging port and a slow charger; the input end of the slow charger is connected with a slow charging port, the quick charging port is provided with an insulated quick charging port cover, and the quick charging port cover is provided with an electronic lock; the positive pole of the quick charging port and the positive pole of the slow charger are connected with the positive pole of a battery pack through the same positive pole relay, and the negative poles of the quick charging port and the slow charger are connected with the negative pole of the battery pack; and the battery management system is respectively connected with the slow charger, the positive pole relay, the battery pack and the electronic lock, and is connected with the positive pole of the quick charging port through the voltage detection circuit. The quick charge safety protection mechanism of the electric vehicle has a simple structure and low cost, and can effectively prevent the electric shock risk that the quick charging port in a slow charging process and when the positive pole relay is burned by integrating the special control method.
Description
Technical field
The invention belongs to the electric vehicle engineering field, what specially refer to a kind of electric motor car fills safety protection mechanism and control method thereof soon.
Background technology
Along with the progress of science and technology, the scarcity day by day of petroleum resources and the raising of public's environmental consciousness, electric automobile more and more receives people's attention.But also there is the corresponding techniques bottleneck in electric motor car at present, and particularly because of the reason of battery performance, the continuation of the journey mileage is shorter, can't reach consumer's requirement.Present battery performance also exists a certain distance apart from requirement of client; Even the mode through strengthening battery capacity satisfies customer requirement; Also will inevitably cause the integral vehicle cost of electric motor car to rise, the economy of the relative conventional gasoline car of electric motor car is reduced greatly, cost performance has been lost advantage.And fill The Application of Technology soon; Shorten the charging interval of electric automobile greatly, satisfied customer group's instructions for use to a certain extent, therefore received the attention of many automobile vendors; But; Charging quickly stream is bigger, will cause serious consequence in case electric shock takes place in the charging process, therefore how to guarantee that its fail safe is a urgent problem.
Summary of the invention
What the objective of the invention is to propose a kind of electric motor car fills safety protection mechanism and control method thereof soon, with the fail safe that guarantees to fill interface soon, avoids taking place the electric shock situation.
The safety protection mechanism that fills soon of electric motor car of the present invention comprises battery management system, charging quickly mouth, trickle charge electrical equipment; The input of trickle charge electrical equipment is connected with the charging battery mouth; Key is that said charging quickly mouth is provided with the charging quickly flap of insulation, and said charging quickly flap is equipped with electronic lock; The positive pole of the positive pole of said charging quickly mouth, trickle charge electrical equipment links to each other with the positive pole of power brick through same anodal relay, and the negative pole of the negative pole of said charging quickly mouth, trickle charge electrical equipment all links to each other with the negative pole of power brick; Said battery management system links to each other with trickle charge electrical equipment, anodal relay, power brick, electronic lock respectively, and battery management system links to each other with the positive pole of charging quickly mouth through voltage detecting circuit.
To come that the charging quickly mouth is carried out electricity isolated for the charging quickly flap that safety protection mechanism utilizes electronic lock and insulation of filling soon of above-mentioned electric motor car, in conjunction with protection strategies, can avoid the Danger Electric shock risk of charging quickly mouth.And the present invention incites somebody to action soon, the trickle charge charge circuit also arrives together, and a shared anodal relay has been practiced thrift cost greatly.
There are following two kinds of Danger Electric shock risks in the charging quickly mouth: 1, anodal relay burns the Danger Electric shock risk that melts and bring; 2, in the process of trickle charge,, there is Danger Electric shock risk because fast, trickle charge charge circuit merging causes the charging quickly mouth can have high pressure.
To above-mentioned two kinds of situation; Tailor-make of the present invention the control method of filling safety protection mechanism soon of electric motor car; Specific as follows: the operating state of battery management system monitoring trickle charge electrical equipment; And detect the cathode voltage of charging quickly mouth simultaneously through voltage detecting circuit, when trickle charge electrical equipment not when the cathode voltage of charging and charging quickly mouth exceeds predetermined voltage, the locked charging quickly flap of battery management system control electronic lock; When the request of trickle charge electrical equipment was charged, the locked charging quickly flap of battery management system control electronic lock can't be locked if electronic lock breaks down, and then battery management system is controlled anodal relay disconnection and/or controlled trickle charge electrical equipment and do not work.
Further, the negative pole of the negative pole of said charging quickly mouth, trickle charge electrical equipment links to each other with the negative pole of power brick through same negative pole relay, and said battery management system links to each other with the negative pole relay, to improve fail safe.
The control method of filling safety protection mechanism soon of above-mentioned electric motor car with negative pole relay is following: the operating state of battery management system monitoring trickle charge electrical equipment; And detect the cathode voltage of charging quickly mouth simultaneously through voltage detecting circuit; When trickle charge electrical equipment not when charging and the cathode voltage of charging quickly mouth exceed predetermined voltage, the locked charging quickly flap of battery management system control electronic lock; When the request of trickle charge electrical equipment is charged; The locked charging quickly flap of battery management system control electronic lock; Can't locked charging flap if electronic lock breaks down, then battery management system is controlled anodal relay, the negative pole relay breaks off and/or control trickle charge electrical equipment is not worked.
Further, said battery management system also is connected with warning device, to improve fail safe.When electronic lock breaks down and can't be locked during the charging quickly flap, battery management system control warning device is reported to the police, and keeps in repair to remind the car owner.
Electric motor car of the present invention fill soon that safety protection mechanism is simple in structure, cost is low, in conjunction with the special control method, can effectively avoid in the charging battery process and anodal relay burns the Danger Electric shock risk of the charging quickly mouth when melting.
Description of drawings
Fig. 1 is the schematic diagram that fills safety protection mechanism soon of the electric motor car of embodiment 1.
Fig. 2 is the schematic diagram that fills safety protection mechanism soon of the electric motor car of embodiment 2.
Embodiment
Contrast accompanying drawing below; Through the description to embodiment, the effect of mutual alignment between the shape of specific embodiments of the invention such as related each member, structure, the each several part and annexation, each several part and operation principle etc. are done further to specify.
Embodiment 1:
As shown in Figure 1; The safety protection mechanism that fills soon of the electric motor car of present embodiment comprises battery management system, charging quickly mouth, trickle charge electrical equipment, warning device; The input of trickle charge electrical equipment is connected with the charging battery mouth; Key is that said charging quickly mouth is provided with the charging quickly flap of insulation, and said charging quickly flap is equipped with electronic lock; The positive pole of the positive pole of said charging quickly mouth, trickle charge electrical equipment links to each other with the positive pole of power brick through same anodal relay, and the negative pole of the negative pole of said charging quickly mouth, trickle charge electrical equipment all links to each other with the negative pole of power brick; Said battery management system links to each other with trickle charge electrical equipment, anodal relay, power brick, electronic lock, warning device respectively, and battery management system links to each other with the positive pole of charging quickly mouth through voltage detecting circuit.
The control method of filling safety protection mechanism soon of above-mentioned electric motor car is specific as follows: the operating state of battery management system monitoring trickle charge electrical equipment; And detect the cathode voltage of charging quickly mouth simultaneously through voltage detecting circuit; When trickle charge electrical equipment not when charging and the cathode voltage of charging quickly mouth exceed predetermined voltage, the locked charging quickly flap of battery management system control electronic lock; When the request of trickle charge electrical equipment was charged, the locked charging quickly flap of battery management system control electronic lock can't be locked if electronic lock breaks down, and then battery management system is controlled anodal relay disconnection and/or controlled trickle charge electrical equipment and do not work; When electronic lock breaks down and can't be locked during the charging quickly flap, battery management system control warning device is reported to the police.
The principle of the control method of filling safety protection mechanism soon of above-mentioned electric motor car is following:
When anodal relay burning was melted, the positive pole of power brick can link to each other with the positive pole of charging quickly mouth through the anodal relay that burning is melted, and causes the positive pole of charging quickly mouth to have high pressure; Therefore if at trickle charge electrical equipment during not in charging, high pressure appears in the positive pole that battery management system monitors the charging quickly mouth, proving promptly that anodal relay has burnt melts; The locked charging quickly flap of battery management system control electronic lock; This moment, personnel can't open the charging quickly flap, played the effect that protection is got an electric shock, when electronic lock breaks down and can't be locked during the charging quickly flap; Battery management system control warning device is reported to the police, and reminds operating personnel to keep in repair.
When trickle charge electrical equipment charges; Because of fast, the shared anodal relay in charging battery loop, the high pressure of trickle charge charger output can be transmitted to the positive pole of charging quickly mouth through charge circuit, makes the positive pole band high pressure of charging quickly mouth; Therefore when the trickle charge charger is sent out the request charge information to battery management system; The locked charging quickly flap of battery management system control electronic lock, if this moment, electronic lock broke down and can't be locked, battery management system controls that anodal relay breaks off and/or control trickle charge electrical equipment is not worked; Control warning device simultaneously and report to the police, cause getting an electric shock to avoid the charging operations personnel to open the charging quickly flap because of mistake when the charging battery.
Embodiment 2:
As shown in Figure 2; The safety protection mechanism that fills soon of the electric motor car of present embodiment comprises battery management system, charging quickly mouth, trickle charge electrical equipment, warning device; The input of trickle charge electrical equipment is connected with the charging battery mouth; Key is that said charging quickly mouth is provided with the charging quickly flap of insulation, and said charging quickly flap is equipped with electronic lock; The positive pole of the positive pole of said charging quickly mouth, trickle charge electrical equipment links to each other with the positive pole of power brick through same anodal relay, and the negative pole of the negative pole of charging quickly mouth, trickle charge electrical equipment links to each other with the negative pole of power brick through same negative pole relay; Said battery management system links to each other with trickle charge electrical equipment, anodal relay, negative pole relay, power brick, electronic lock, warning device respectively, and battery management system links to each other with the positive pole of charging quickly mouth through voltage detecting circuit.
The control method of filling safety protection mechanism soon of above-mentioned electric motor car with negative pole relay is following: the operating state of battery management system monitoring trickle charge electrical equipment; And detect the cathode voltage of charging quickly mouth simultaneously through voltage detecting circuit; When trickle charge electrical equipment not when charging and the cathode voltage of charging quickly mouth exceed predetermined voltage, the locked charging quickly flap of battery management system control electronic lock; When the request of trickle charge electrical equipment is charged; The locked charging quickly flap of battery management system control electronic lock; Can't locked charging flap if electronic lock breaks down, then battery management system is controlled anodal relay, the negative pole relay breaks off and/or control trickle charge electrical equipment is not worked.
When electronic lock breaks down and can't be locked during the charging quickly flap, battery management system control warning device is reported to the police, and keeps in repair to remind the car owner.
The protection philosophy of present embodiment and embodiment 1 are basic identical, repeat no more here.
Claims (7)
1. an electric motor car fills safety protection mechanism soon; Comprise battery management system, charging quickly mouth, trickle charge electrical equipment; The input of trickle charge electrical equipment is connected with the charging battery mouth, it is characterized in that said charging quickly mouth is provided with the charging quickly flap of insulation, and said charging quickly flap is equipped with electronic lock; The positive pole of the positive pole of said charging quickly mouth, trickle charge electrical equipment links to each other with the positive pole of power brick through same anodal relay, and the negative pole of the negative pole of said charging quickly mouth, trickle charge electrical equipment all links to each other with the negative pole of power brick; Said battery management system links to each other with trickle charge electrical equipment, anodal relay, power brick, electronic lock respectively, and battery management system links to each other with the positive pole of charging quickly mouth through voltage detecting circuit.
2. electric motor car according to claim 1 fills safety protection mechanism soon; It is characterized in that the negative pole of said charging quickly mouth, the negative pole of trickle charge electrical equipment link to each other with the negative pole of power brick through same negative pole relay, said battery management system links to each other with the negative pole relay.
Electric motor car according to claim 1 and 2 fill safety protection mechanism soon, it is characterized in that said battery management system also is connected with warning device.
4. the control method of filling safety protection mechanism soon of electric motor car according to claim 1; The operating state that it is characterized in that battery management system monitoring trickle charge electrical equipment; And detect the cathode voltage of charging quickly mouth simultaneously through voltage detecting circuit; When trickle charge electrical equipment not when charging and the cathode voltage of charging quickly mouth exceed predetermined voltage, the locked charging quickly flap of battery management system control electronic lock; When the request of trickle charge electrical equipment was charged, the locked charging quickly flap of battery management system control electronic lock can't locked charging flap if electronic lock breaks down, and then battery management system controls that anodal relay breaks off and/or control trickle charge electrical equipment is not worked.
5. the control method of filling safety protection mechanism soon of electric motor car according to claim 4 is characterized in that breaking down and can't be locked during the charging quickly flap when electronic lock, and battery management system control warning device is reported to the police.
6. the control method of filling safety protection mechanism soon of electric motor car according to claim 2; The operating state that it is characterized in that battery management system monitoring trickle charge electrical equipment; And detect the cathode voltage of charging quickly mouth simultaneously through voltage detecting circuit; When trickle charge electrical equipment not when charging and the cathode voltage of charging quickly mouth exceed predetermined voltage, the locked charging quickly flap of battery management system control electronic lock; When the request of trickle charge electrical equipment is charged; The locked charging quickly flap of battery management system control electronic lock; Can't locked charging flap if electronic lock breaks down, then battery management system is controlled anodal relay, the negative pole relay breaks off and/or control trickle charge electrical equipment is not worked.
7. the control method of filling safety protection mechanism soon of electric motor car according to claim 6 is characterized in that breaking down and can't be locked during the charging quickly flap when electronic lock, and battery management system control warning device is reported to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110239414A CN102324761A (en) | 2011-08-19 | 2011-08-19 | Quick charge safety protection mechanism of electric vehicle and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110239414A CN102324761A (en) | 2011-08-19 | 2011-08-19 | Quick charge safety protection mechanism of electric vehicle and control method thereof |
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| CN102324761A true CN102324761A (en) | 2012-01-18 |
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| CN201110239414A Pending CN102324761A (en) | 2011-08-19 | 2011-08-19 | Quick charge safety protection mechanism of electric vehicle and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600815A (en) * | 2015-02-16 | 2015-05-06 | 安徽江淮汽车股份有限公司 | Electromobile charging system and charging control method |
| CN112389548A (en) * | 2019-07-31 | 2021-02-23 | 比亚迪股份有限公司 | Electric shock protection method, device and system for direct current charging port and vehicle |
| CN114559845A (en) * | 2020-11-27 | 2022-05-31 | 长城汽车股份有限公司 | Vehicle charging mode control method and device, electronic equipment and readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009136110A (en) * | 2007-11-30 | 2009-06-18 | Toyota Motor Corp | Vehicle charging control device |
| JP2010098845A (en) * | 2008-10-16 | 2010-04-30 | Toyota Motor Corp | Charge controller of vehicle, and vehicle |
| JP2010187467A (en) * | 2009-02-12 | 2010-08-26 | Omron Corp | Battery charging device for vehicle and control method of power supply port |
| WO2010150360A1 (en) * | 2009-06-24 | 2010-12-29 | トヨタ自動車株式会社 | Charge controlling device for electric vehicle |
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2011
- 2011-08-19 CN CN201110239414A patent/CN102324761A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009136110A (en) * | 2007-11-30 | 2009-06-18 | Toyota Motor Corp | Vehicle charging control device |
| JP2010098845A (en) * | 2008-10-16 | 2010-04-30 | Toyota Motor Corp | Charge controller of vehicle, and vehicle |
| JP2010187467A (en) * | 2009-02-12 | 2010-08-26 | Omron Corp | Battery charging device for vehicle and control method of power supply port |
| WO2010150360A1 (en) * | 2009-06-24 | 2010-12-29 | トヨタ自動車株式会社 | Charge controlling device for electric vehicle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600815A (en) * | 2015-02-16 | 2015-05-06 | 安徽江淮汽车股份有限公司 | Electromobile charging system and charging control method |
| CN112389548A (en) * | 2019-07-31 | 2021-02-23 | 比亚迪股份有限公司 | Electric shock protection method, device and system for direct current charging port and vehicle |
| CN112389548B (en) * | 2019-07-31 | 2022-06-10 | 比亚迪股份有限公司 | Electric shock protection method, device and system for direct current charging port and vehicle |
| CN114559845A (en) * | 2020-11-27 | 2022-05-31 | 长城汽车股份有限公司 | Vehicle charging mode control method and device, electronic equipment and readable storage medium |
| WO2022111056A1 (en) * | 2020-11-27 | 2022-06-02 | 长城汽车股份有限公司 | Control method and apparatus for controlling vehicle charging mode, electronic device, and readable storage medium |
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Application publication date: 20120118 |