CN106712209A - Multi-protection device and protection method for safe charging of direct current charging equipment - Google Patents
Multi-protection device and protection method for safe charging of direct current charging equipment Download PDFInfo
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- CN106712209A CN106712209A CN201710080051.3A CN201710080051A CN106712209A CN 106712209 A CN106712209 A CN 106712209A CN 201710080051 A CN201710080051 A CN 201710080051A CN 106712209 A CN106712209 A CN 106712209A
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- charging
- protection
- battery
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- detection unit
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000001514 detection method Methods 0.000 claims abstract description 32
- 101100004933 Arabidopsis thaliana CYP79F1 gene Proteins 0.000 claims abstract description 4
- 230000001012 protector Effects 0.000 claims description 19
- 230000005611 electricity Effects 0.000 claims description 13
- 230000036461 convulsion Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- H02J7/0091—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a multi-protection device and protection method for the safe charging of direct current charging equipment. The multi-protection device comprises a control unit, an emergency stop detection unit, a temperature detection unit, a power source module set, an over-current detection unit and an overvoltage detection unit; the control unit is connected with the emergency stop detection unit, the temperature detection unit, the over-current detection unit, the overvoltage detection unit and the power source module set; the control unit is further connected with a vehicle BMS through a CAN BUS1; and the control unit is also connected with an air switch through a CANBUS2, wherein the air switch controls the power source module set. With three protection mechanisms adopted, the safety of the charging process of an electric vehicle can be greatly improved. The multi-protection device has the advantages of structural simplicity and high practicability.
Description
Technical field
The present invention relates to charging equipment of electric automobile designing technique, refer in particular to what a kind of DC charging equipment safety charged
Multiple protector and guard method.
Background technology
At present, electric automobile is with low stain, the selection as more and more consumers the characteristics of high-environmental, but, it is electronic
Such as currently still there are some potential safety hazards in automobile, security incident takes place frequently in charging process, and shortage is effectively protected means, into
It is the restriction most important barrier of electric automobile industry development.So by improving charging safety of the charging equipment to electric automobile
Property, security and enthusiasm that consumer uses electric automobile can be improved.
The content of the invention
The purpose of the present invention is that security incident takes place frequently in overcoming charging process in the prior art, and shortage is effectively protected means
Defect, there is provided multiple protector and guard method that a kind of DC charging equipment safety charges.
The purpose of the present invention is achieved by following technical proposals：
The multiple protector that a kind of DC charging equipment safety charges, including control unit, jerk detection unit, temperature
Detection unit, power module group, over-current detection unit and over-pressed detection unit, control unit simultaneously with jerk detection unit, temperature
Degree detection unit, over-current detection unit, over-pressed detection unit, power module group are connected, and control unit also passes through CAN BUS1
It is connected with vehicle BMS, control unit is also connected by CANBUS2 with the air switch of control power module group.
A kind of guard method of the multiple protector that DC charging equipment safety charges, multiple protector is by triple
Protection is protected to charging equipment, specially：
1) first order protection：System mode according to detecting is protected
A, jerk protection：Physical connection of the system detectio to disconnection charging equipment and electric automobile in 50ms after emergent stop signal
And module for power supply of cutting off the electricity supply, terminate this charging flow.
B, overvoltage protection：Whether system voltage protection threshold values Vp is set, in charging process, persistently charging voltage value is detected
More than Vp, if then cut-out power supply, terminates this charging flow.
C, overcurrent protection：Whether system power protection threshold values Ip is set, in charging process, persistently charging current value is detected
More than Ip, if then cut-out power supply, complete charge flow.
D, over-temperature protection：Setting system over-temperature protection threshold values Tp, recovers threshold values Tpr, in charging process, lasting detection
Whether system temperature is more than Tp, if then reducing 1/2 charging current, when detecting system temperature less than Tpr, and recovery system demand
Charging current.Wherein Tp is more than Tpr.
E, system insulation abnormal protection and high voltage connector adhesion protection：In system prepares to start charging process, system
Meeting self-inspection, if it is checked that system insulation exception or high voltage connector adhesion, then terminate this charging flow.
F, Communications failure protection：In charging process, between each monitoring unit Communications failure or with battery management system communicate
Failure, then terminate this charging flow.
2) second level protection：Protected by the threshold values interacted with battery management system
The maximum allowable charging voltage protection of A, battery pack：In charging process, persistently detect charging voltage value whether more than electricity
The maximum allowable charging voltage value of battery pack of pond management system transmission, if then terminating this charging flow.
The maximum allowable charging current protection of B, battery pack：In charging process, persistently detect charging current value whether more than electricity
The maximum allowable charging current value of battery pack of pond management system transmission, if then terminating this charging flow.
3) third level protection：Redundancy protecting is carried out by real time charging data
A, overcharge protection：According to battery total electricity Qm and battery charge state that handshake phase battery management system is transmitted
(SOC) D, calculates chargeable amount Qs=(1-D) the * Qm of battery, obtains ammeter electricity in charging process in real time, and judgement has been charged
Whether amount is more than the chargeable amount of battery, if then terminating this charging flow.
B, charging interval long protection：In charging process, charge volume Q=∫ (Vt*It) dt, wherein Vt, It is respectively t
The charging voltage at moment, charging current.When the T moment, charge volume Q was more than the chargeable amount of battery, terminate this charging flow.
Used as a kind of preferred scheme, the multiple protector that DC charging equipment safety charges also includes accessory power supply, auxiliary
Power supply is helped to be powered to control unit.
Used as a kind of preferred scheme, the multiple protector that DC charging equipment safety charges also includes vehicle BMS, control
Unit is connected by CANBUS1 with vehicle BMS.
In the third level is protected, also include：
C, BMS transmit battery data abnormal protection：In charging process, battery management system transmits the charged of battery in real time
State (SOC), if charge volume is having increased, but state-of-charge does not increase or reduces or equal to 100%, then battery management system
System transmission data exception, terminates this charging flow.
The beneficial effects of the invention are as follows by triple protection mechanism, making the security of charging electric vehicle process carry significantly
Height, and it is simple structure of the present invention, practical.
Brief description of the drawings
Fig. 1 is a kind of schematic block circuit diagram of the invention.
Wherein：1st, control unit, 2, jerk detection unit, 3, temperature detecting unit, 4, power module group, 5, over-current detection
Unit, 6, over-pressed detection unit, 7, air switch, 8, accessory power supply, 9, vehicle BMS.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment：The multiple protector that a kind of DC charging equipment safety charges, as shown in figure 1, including control unit
1st, jerk detection unit 2, temperature detecting unit 3, power module group 4, vehicle BMS9, over-current detection unit 5 and overvoltage detection are single
Unit 6, control unit simultaneously with jerk detection unit, temperature detecting unit, over-current detection unit, over-pressed detection unit, power supply mould
Block group is connected, and control unit is also connected by CAN BUS1 with vehicle BMS, and control unit is also by CANBUS2 and control
The air switch 7 of power module group is connected.Control unit is connected by CANBUS1 with vehicle BMS.Multiple protector also includes
Accessory power supply 8, accessory power supply is powered to control unit.
A kind of guard method of the multiple protector that DC charging equipment safety charges, multiple protector is by triple
Protection is protected to charging equipment, specially：
1) first order protection：System mode according to detecting is protected
A, jerk protection：Physical connection of the system detectio to disconnection charging equipment and electric automobile in 50ms after emergent stop signal
And module for power supply of cutting off the electricity supply, terminate this charging flow.
B, overvoltage protection：Whether system voltage protection threshold values Vp is set, in charging process, persistently charging voltage value is detected
More than Vp, if then cut-out power supply, terminates this charging flow.
C, overcurrent protection：Whether system power protection threshold values Ip is set, in charging process, persistently charging current value is detected
More than Ip, if then cut-out power supply, complete charge flow.
D, over-temperature protection：Setting system over-temperature protection threshold values Tp, recovers threshold values Tpr, in charging process, lasting detection
Whether system temperature is more than Tp, if then reducing 1/2 charging current, when detecting system temperature less than Tpr, and recovery system demand
Charging current.Wherein Tp is more than Tpr.
E, system insulation abnormal protection and high voltage connector adhesion protection：In system prepares to start charging process, system
Meeting self-inspection, if it is checked that system insulation exception or high voltage connector adhesion, then terminate this charging flow.
F, Communications failure protection：In charging process, between each monitoring unit Communications failure or with battery management system communicate
Failure, then terminate this charging flow.
2) second level protection：Protected by the threshold values interacted with battery management system
The maximum allowable charging voltage protection of A, battery pack：In charging process, persistently detect charging voltage value whether more than electricity
The maximum allowable charging voltage value of battery pack of pond management system transmission, if then terminating this charging flow.
The maximum allowable charging current protection of B, battery pack：In charging process, persistently detect charging current value whether more than electricity
The maximum allowable charging current value of battery pack of pond management system transmission, if then terminating this charging flow.
3) third level protection：Redundancy protecting is carried out by real time charging data
A, overcharge protection：According to battery total electricity Qm and battery charge state that handshake phase battery management system is transmitted
(SOC) D, calculates chargeable amount Qs=(1-D) the * Qm of battery, obtains ammeter electricity in charging process in real time, and judgement has been charged
Whether amount is more than the chargeable amount of battery, if then terminating this charging flow.
B, charging interval long protection：In charging process, charge volume Q=∫ (Vt*It) dt, wherein Vt, It is respectively t
The charging voltage at moment, charging current.When the T moment, charge volume Q was more than the chargeable amount of battery, terminate this charging flow.
C, BMS transmit battery data abnormal protection：In charging process, battery management system transmits the charged of battery in real time
State (SOC), if charge volume is having increased, but state-of-charge does not increase or reduces or equal to 100%, then battery management system
System transmission data exception, terminates this charging flow.
Claims (5)
1. the multiple protector that a kind of DC charging equipment safety charges, it is characterized in that, including control unit, jerk detection list
Unit, temperature detecting unit, power module group, over-current detection unit and over-pressed detection unit, control unit are detected with jerk simultaneously
Unit, temperature detecting unit, over-current detection unit, over-pressed detection unit, power module group are connected, and control unit also passes through
CAN BUS1 are connected with vehicle BMS, and control unit is also connected by CANBUS2 with the air switch of control power module group.
2. the multiple protector that a kind of DC charging equipment safety according to claim 1 charges, it is characterized in that, also wrap
Accessory power supply is included, accessory power supply is powered to control unit.
3. the multiple protector that a kind of DC charging equipment safety according to claim 1 and 2 charges, it is characterized in that,
Also include vehicle BMS, control unit is connected by CANBUS1 with vehicle BMS.
4. the guard method of the multiple protector that a kind of DC charging equipment safety charges, it is characterized in that, multiple protector
Charging equipment is protected by triple protection, specially：
1）The first order is protected, and is protected according to the system mode for detecting：
A, jerk protection：System detectio is to disconnecting the physical connection of charging equipment and electric automobile in 50ms after emergent stop signal and cut
Power-off source module is powered, and terminates this charging flow；
B, overvoltage protection：System voltage protection threshold values Vp is set, in charging process, persistently detects whether charging voltage value is more than
Vp, if then cut-out power supply, terminates this charging flow；
C, overcurrent protection：System power protection threshold values Ip is set, in charging process, persistently detects whether charging current value is more than
Ip, if then cut-out power supply, complete charge flow；
D, over-temperature protection：Setting system over-temperature protection threshold values Tp, recovers threshold values Tpr, in charging process, continues detecting system
Whether temperature is more than Tp, if then reducing 1/2 charging current, when detecting system temperature less than Tpr, recovery system demand charges
Electric current, wherein Tp are more than Tpr；
E, system insulation abnormal protection and high voltage connector adhesion protection：In system prepares to start charging process, system can be certainly
Inspection, if it is checked that system insulation exception or high voltage connector adhesion, then terminate this charging flow；
F, Communications failure protection：In charging process, between each monitoring unit Communications failure or with battery management system Communications failure,
Then terminate this charging flow；
2）The second level is protected, and is protected by the threshold values interacted with battery management system：
The maximum allowable charging voltage protection of A, battery pack：In charging process, persistently detect whether charging voltage value is more than cell tube
The maximum allowable charging voltage value of battery pack of reason system transmission, if then terminating this charging flow；
The maximum allowable charging current protection of B, battery pack：In charging process, persistently detect whether charging current value is more than cell tube
The maximum allowable charging current value of battery pack of reason system transmission, if then terminating this charging flow；
3）The third level is protected, and redundancy protecting is carried out by real time charging data：
A, overcharge protection：According to the battery total electricity that handshake phase battery management system is transmitted, the chargeable amount of battery is calculated,
Ammeter electricity is obtained in charging process in real time, judges whether charge volume is more than the chargeable amount of battery, if then terminate this filling
Electric current journey；
B, charging interval long protection；
Used as a kind of preferred scheme, the multiple protector that DC charging equipment safety charges also includes accessory power supply, auxiliary electricity
Source powers to control unit.
5. the guard method of the multiple protector that a kind of DC charging equipment safety according to claim 4 charges,
It is characterized in that, in the third level is protected, also include：
C, BMS transmit battery data abnormal protection：In charging process, battery management system transmits the state-of-charge of battery in real time
（SOC）If charge volume is increasing, but state-of-charge does not increase or reduces or equal to 100%, then battery management system is passed
Data exception is sent, terminates this charging flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710080051.3A CN106712209A (en) | 2017-02-14 | 2017-02-14 | Multi-protection device and protection method for safe charging of direct current charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710080051.3A CN106712209A (en) | 2017-02-14 | 2017-02-14 | Multi-protection device and protection method for safe charging of direct current charging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106712209A true CN106712209A (en) | 2017-05-24 |
Family
ID=58911642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710080051.3A Pending CN106712209A (en) | 2017-02-14 | 2017-02-14 | Multi-protection device and protection method for safe charging of direct current charging equipment |
Country Status (1)
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| CN (1) | CN106712209A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264323A (en) * | 2017-06-29 | 2017-10-20 | 中能东道集团有限公司 | A kind of stable lithium-ion power battery group management system |
| CN107979136A (en) * | 2017-12-15 | 2018-05-01 | 福州大学 | A kind of battery charging management system applied to electric automobile |
| CN109455106A (en) * | 2018-10-17 | 2019-03-12 | 国网浙江省电力有限公司杭州供电公司 | A kind of electric car Intelligent charging station |
| CN110875611A (en) * | 2018-08-30 | 2020-03-10 | 宁德时代新能源科技股份有限公司 | Charging circuit and control method thereof |
| CN114243834A (en) * | 2021-12-16 | 2022-03-25 | 湖北襄开电力设备有限公司 | Battery charging protection method and device |
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| CN201075720Y (en) * | 2007-09-22 | 2008-06-18 | 天津市松正电动科技有限公司 | Control circuit of controller for electric vehicle |
| CN104734259A (en) * | 2013-12-20 | 2015-06-24 | 上海电气集团股份有限公司 | Sodium-sulfur cell operation management system |
| CN105774575A (en) * | 2016-03-04 | 2016-07-20 | 南京康尼新能源汽车零部件有限公司 | Protection method for safe charging of electric car |
| CN106300521A (en) * | 2016-08-29 | 2017-01-04 | 武汉北方能源股份有限公司 | A kind of alternating-current charging pile control system of multi-storied garage |
| CN206947964U (en) * | 2017-02-14 | 2018-01-30 | 浙江万马新能源有限公司 | A kind of multiple protector of DC charging equipment safety charging |
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2017
- 2017-02-14 CN CN201710080051.3A patent/CN106712209A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201075720Y (en) * | 2007-09-22 | 2008-06-18 | 天津市松正电动科技有限公司 | Control circuit of controller for electric vehicle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264323A (en) * | 2017-06-29 | 2017-10-20 | 中能东道集团有限公司 | A kind of stable lithium-ion power battery group management system |
| CN107979136A (en) * | 2017-12-15 | 2018-05-01 | 福州大学 | A kind of battery charging management system applied to electric automobile |
| CN110875611A (en) * | 2018-08-30 | 2020-03-10 | 宁德时代新能源科技股份有限公司 | Charging circuit and control method thereof |
| CN109455106A (en) * | 2018-10-17 | 2019-03-12 | 国网浙江省电力有限公司杭州供电公司 | A kind of electric car Intelligent charging station |
| CN109455106B (en) * | 2018-10-17 | 2022-07-26 | 国网浙江省电力有限公司杭州供电公司 | Intelligent charging station for electric automobile |
| CN114243834A (en) * | 2021-12-16 | 2022-03-25 | 湖北襄开电力设备有限公司 | Battery charging protection method and device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |
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| RJ01 | Rejection of invention patent application after publication |