CN112406571A - Safe charging control system and method for electric automobile - Google Patents
Safe charging control system and method for electric automobileDownload PDFInfo
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- CN112406571A CN112406571ACN202011101774.5ACN202011101774ACN112406571ACN 112406571 ACN112406571 ACN 112406571ACN 202011101774 ACN202011101774 ACN 202011101774ACN 112406571 ACN112406571 ACN 112406571A
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- 238000000034methodMethods0.000titleclaimsabstractdescription20
- 238000001514detection methodMethods0.000claimsdescription6
- 230000002457bidirectional effectEffects0.000claimsdescription3
- 230000005611electricityEffects0.000claimsdescription3
- 230000001960triggered effectEffects0.000claimsdescription3
- 230000006978adaptationEffects0.000description1
- 230000004075alterationEffects0.000description1
- 230000009286beneficial effectEffects0.000description1
- 238000012790confirmationMethods0.000description1
- 238000010586diagramMethods0.000description1
- 238000005516engineering processMethods0.000description1
- 238000012986modificationMethods0.000description1
- 230000004048modificationEffects0.000description1
- 230000000630rising effectEffects0.000description1
- 238000006467substitution reactionMethods0.000description1
- 230000002618waking effectEffects0.000description1
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Classifications
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
- 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
- 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]
- 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
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- 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
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Translated fromChinese
Description
Technical Field
The invention belongs to the technical field of new energy automobiles, and particularly relates to a safe charging control system and method for an electric automobile.
Background
The electric vehicle (BEV) is a vehicle which takes a vehicle-mounted power supply as power and drives wheels by a motor, and meets various requirements of road traffic and safety regulations. The influence on the environment is smaller than that of the traditional automobile, the prospect is widely seen, but the technologies of charging a power battery, a battery and the like of the current electric automobile are not mature, the environment and the battery performance in the charging process cannot be well monitored in real time, and the charging is not safe enough.
However, some unreasonable factors still exist in the existing electric vehicle charging control method in the process of charging the electric vehicle, and when the existing electric vehicle charging control method is used: the charging environment of the power battery cannot be well monitored in real time, good feedback and emergency mechanism cannot be made on the charging temperature, and certain potential safety hazards exist.
Disclosure of Invention
The present invention is directed to a system and a method for controlling safe charging of an electric vehicle, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the safe charging control system and method for the electric automobile are characterized by comprising the following modules: the car pile module that charges, car interface module, PDU module, VCU module, remote terminal module and power battery module charge, contain following step:
the method comprises the following steps: firstly, inserting a charging connector of an automobile charging pile module into a corresponding automobile charging interface, wherein jacks of the automobile charging connector comprise an L-pole jack, an N-pole jack, a CC1 jack, a CC2 jack, a PE jack, an A-jack, an A + jack, a CAN-H jack and a CAN-L jack;
step two: after the charging connector is inserted into the corresponding automobile charging interface, the charging connector is connected with a CC1 connector of the automobile charging interface, a charging pile applies 12V detection voltage to a CC1 jack, the voltage passes through a resistor R1 arranged at one end of an automobile CC1 plug, and the charging pile detects that the voltage changes;
step three: after detecting that the voltage changes, the charging pile sends a wake-up signal through the A + jack, the VCU module is woken up, meanwhile, 12V detection voltage is applied to the CC2 plug by the VCU module, the voltage passes through a resistor R2 arranged at one end of the automobile CC2 plug, the VCU module detects that the voltage changes, and at the moment, the bidirectional authentication is finished, namely the charging pile plug is safely plugged;
step four: after the authentication is completed, the charging pile reads the capacity, the voltage, the current electric quantity and other information of the power battery through the CAN-H and CAN-L interfaces so as to formulate a corresponding charging plan;
step five: after the charging plan is formulated, the VCU sends a signal to the PDU, so that a relay of a positive power line and a negative power line in the PDU is closed, charging is started, and the CAN-H jack and the CAN-L jack CAN feed back voltage, electric quantity and temperature information of the power battery to the charging pile and the remote terminal in real time during charging;
step six: when the power battery pack in the power battery module is full of electricity or the temperature is too high, a temperature module protection mechanism is triggered, the charging pile stops charging in time and uploads a remote terminal to warn;
as a preferred technical solution of the present invention, the PE interface is grounded, and is a ground line.
As a preferable technical scheme of the invention, a transformer is arranged in the charging pile to raise the voltage of a power grid to a voltage matched with a power battery pack.
As a preferable technical scheme of the invention, the current output by the charging pile is direct current.
As a preferable technical solution of the present invention, the temperature module includes two temperature sensors for respectively detecting a battery temperature and an ambient temperature.
As a preferred technical scheme of the invention, the resistances of the resistors R1 and R2 in the second step and the third step are consistent.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the temperature module is integrated between the power battery module and the charging pile, the temperature module is connected with the power battery through the temperature sensor, the temperature of the power battery can be monitored in real time, temperature data are fed back to the remote terminal and the charging pile, when the temperature is too high, the charging pile can stop charging in time, the potential safety hazard is avoided, the charging condition of the battery can be mastered in real time through the remote terminal, the charging of the battery is controlled, and the use is more convenient.
Drawings
FIG. 1 is a schematic diagram of a charging process according to the present invention;
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, the present invention provides the following technical solutions: the system and the method for controlling the safe charging of the electric automobile are characterized by comprising the following modules of an automobile charging pile module, an automobile charging interface module, a PDU (protocol data unit) module, a VCU (virtual vehicle unit) module, a remote terminal module and a power battery module, and comprise the following steps:
the method comprises the following steps: firstly, inserting a charging connector of an automobile charging pile module into a corresponding automobile charging interface, wherein jacks of the automobile charging connector comprise an L-pole jack, an N-pole jack, a CC1 jack, a CC2 jack, a PE jack, an A-jack, an A + jack, a CAN-H jack and a CAN-L jack;
step two: after the charging connector is inserted into the corresponding automobile charging interface, the charging connector is connected with a CC1 connector of the automobile charging interface, a charging pile applies 12V detection voltage to a CC1 jack, the voltage passes through a resistor R1 arranged at one end of an automobile CC1 plug, and the charging pile detects that the voltage changes;
step three: after detecting that the voltage changes, the charging pile sends a wake-up signal through the A + jack, the VCU module is woken up, meanwhile, 12V detection voltage is applied to the CC2 plug by the VCU module, the voltage passes through a resistor R2 arranged at one end of the automobile CC2 plug, the VCU module detects that the voltage changes, and at the moment, the bidirectional authentication is finished, namely the charging pile plug is safely plugged;
step four: after the authentication is completed, the charging pile reads the capacity, the voltage, the current electric quantity and other information of the power battery through the CAN-H and CAN-L interfaces so as to formulate a corresponding charging plan;
step five: after the charging plan is formulated, the VCU sends a signal to the PDU, so that a relay of a positive power line and a negative power line in the PDU is closed, charging is started, and the CAN-H jack and the CAN-L jack CAN feed back voltage, electric quantity and temperature information of the power battery to the charging pile and the remote terminal in real time during charging;
step six: when the power battery pack in the power battery module is full of electricity or the temperature is too high, a temperature module protection mechanism is triggered, the charging pile stops charging in time and uploads a remote terminal to warn;
in this embodiment, preferably, the PE interface is grounded, and is a ground line, the L-pole jack is a negative power connection line, the N-pole jack is a positive power connection line, the CC1 jack and the CC2 jack are joint connection stability confirmation lines, and the a-jack and the a + jack are low-voltage auxiliary lines for waking up the VCU, the CAN-H and the CAN-L as feedback lines of the charging environment; .
In this embodiment, preferably, fill electric pile inside and be provided with the transformer, with the electric wire netting voltage rise to the voltage with power battery group looks adaptation, VCU is electric automobile vehicle control unit, PDU is electric automobile high voltage distribution box.
In this embodiment, preferably, the temperature module includes two temperature sensors, which respectively detect the battery temperature and the ambient temperature, and the charging temperature set by the temperature module is: the environment temperature is higher than 10 ℃ and lower than 45 ℃, the battery temperature is lower than 45 ℃, and the electric quantity is lower than 85%, and the large-current rapid charging is adopted; when any one of the conditions is not met, trickle charging is carried out; if the battery temperature rises rapidly and the rising rate Δ T/Δ T is substantially the same, the rapid charging is terminated when the battery temperature rises by 1 ℃ per minute.
In this embodiment, it is preferable that the resistances of the resistors R1 and R2 in the second step and the third step are the same.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The safe charging control system for the electric automobile is characterized by comprising the following modules of an automobile charging pile module, an automobile charging interface module, a PDU (protocol data unit) module, a VCU (virtual vehicle unit) module, a remote terminal module and a power battery module.
2. The method for realizing the safe charging control system of the electric automobile in the claim 1 is characterized by comprising the following steps:
the method comprises the following steps: firstly, inserting a charging connector of an automobile charging pile module into a corresponding automobile charging interface, wherein jacks of the automobile charging connector comprise an L-pole jack, an N-pole jack, a CC1 jack, a CC2 jack, a PE jack, an A-jack, an A + jack, a CAN-H jack and a CAN-L jack;
step two: after the charging connector is inserted into the corresponding automobile charging interface, the charging connector is connected with a CC1 connector of the automobile charging interface, a charging pile applies 12V detection voltage to a CC1 jack, the voltage passes through a resistor R1 arranged at one end of an automobile CC1 plug, and the charging pile detects that the voltage changes;
step three: after detecting that the voltage changes, the charging pile sends a wake-up signal through the A + jack, the VCU module is woken up, meanwhile, 12V detection voltage is applied to the CC2 plug by the VCU module, the voltage passes through a resistor R2 arranged at one end of the automobile CC2 plug, the VCU module detects that the voltage changes, and at the moment, the bidirectional authentication is finished, namely the charging pile plug is safely plugged;
step four: after the authentication is completed, the charging pile reads the capacity, the voltage, the current electric quantity and other information of the power battery through the CAN-H and CAN-L interfaces so as to formulate a corresponding charging plan;
step five: after the charging plan is formulated, the VCU sends a signal to the PDU, so that a relay of a positive power line and a negative power line in the PDU is closed, charging is started, and the CAN-H jack and the CAN-L jack CAN feed back voltage, electric quantity and temperature information of the power battery to the charging pile and the remote terminal in real time during charging;
step six: when the power battery pack in the power battery module is full of electricity or the temperature is too high, the temperature module protection mechanism is triggered, the charging pile stops charging in time, and the charging pile uploads a remote terminal to warn.
3. The system and method for controlling safe charging of an electric vehicle according to claim 1, wherein the PE interface is grounded and is a ground line.
4. The system and the method for controlling safe charging of the electric vehicle as claimed in claim 1, wherein a transformer is arranged inside the charging pile to raise the voltage of the power grid to a voltage suitable for the power battery pack.
5. The system and the method for controlling safe charging of an electric vehicle according to claim 1, wherein the current output by the charging pile is direct current.
6. The system and method for controlling safe charging of electric vehicle according to claim 1, wherein the resistors R1 and R2 in step two and step three have the same resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011101774.5ACN112406571A (en) | 2020-10-13 | 2020-10-13 | Safe charging control system and method for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011101774.5ACN112406571A (en) | 2020-10-13 | 2020-10-13 | Safe charging control system and method for electric automobile |
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| Publication Number | Publication Date |
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| CN112406571Atrue CN112406571A (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011101774.5APendingCN112406571A (en) | 2020-10-13 | 2020-10-13 | Safe charging control system and method for electric automobile |
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| CN (1) | CN112406571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214400A (en)* | 2021-04-19 | 2022-10-21 | 苏州易换骑网络科技有限公司 | Device suitable for power battery quick charge |
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- 2020
- 2020-10-13CNCN202011101774.5Apatent/CN112406571A/enactivePending
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| RJ01 | Rejection of invention patent application after publication | Application publication date:20210226 |