CN110723002B - Mobile charging trolley - Google Patents
Mobile charging trolley Download PDFInfo
- Publication number
- CN110723002B CN110723002B CN201911029704.0A CN201911029704A CN110723002B CN 110723002 B CN110723002 B CN 110723002B CN 201911029704 A CN201911029704 A CN 201911029704A CN 110723002 B CN110723002 B CN 110723002B
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- Prior art keywords
- charging
- controller
- battery pack
- external equipment
- mobile
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Classifications
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- 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
- 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
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for 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
- 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
- B60L53/60—Monitoring or controlling charging stations
-
- 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
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
-
- 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
- Y02T90/12—Electric charging stations
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a mobile charging trolley, comprising: a battery pack; the charging system is connected with the battery pack and comprises a charger and a charging gun, and the charger comprises a controller; after the charging gun is connected with the external equipment, the controller sends a charger handshake message, judges the type of the external equipment according to the type of the received message, and determines whether the battery pack is powered on or powered off based on the type of the external equipment. The mobile charging trolley judges the type of equipment connected with the charging gun through the type of the message received by the controller, so as to determine whether to power on or power off. Therefore, the mobile charging trolley can be connected with a social vehicle or an intelligent charging pile only by being provided with one charging gun, so that redundancy of the charging gun is avoided, and the cost is saved.
Description
Technical Field
The invention belongs to the technical field of charging, and particularly relates to a mobile charging trolley.
Background
With the continuous development of new energy automobiles, the problem of continuous voyage of the new energy automobiles is increasingly prominent. At present, in order to solve the problem of continuous voyage of a new energy automobile, the schemes of charging stations and power exchanging stations are practically applied. Although the concept of wirelessly charging automobiles has also been proposed, no large-scale application is currently commercially available. Because the power exchange station needs to store a large amount of batteries, and the battery specifications are not uniform among different manufacturers, great difficulties exist in construction, scheduling and the like of the power exchange station. From a practical point of view, the current mainstream solution is to still charge the station.
However, charging stations still have the following problems: if the charging station is large in scale, a certain place is required to be occupied, which makes the charging station cost high especially in urban centers and the like; if the charging station is small in scale, the charging piles are small in number, so that the requirements cannot be met. In addition, there are cases where an electric vehicle cannot reach a charging station before the electric power is exhausted due to a battery problem or an estimation error for the remaining mileage. In this case, moving the charging carriage is complete.
When the mobile charging trolley charges the vehicle, it serves as a power supply device; when the electric quantity of the mobile charging trolley is insufficient and the mobile charging trolley needs to be charged, the mobile charging trolley is used as power receiving equipment, and the electric quantity is acquired from the charging pile. In order to connect with different devices, the current mobile charging trolley is provided with a charging gun to charge the vehicle, and when the self-electricity quantity is insufficient, the mobile charging trolley needs to be charged by using the charging gun arranged on the charging pile. That is, both the mobile charging trolley and its dedicated charging post need to be equipped with charging guns, which creates unnecessary system redundancy and waste.
Disclosure of Invention
In order to solve the technical problems, the invention provides the following technical scheme:
a mobile charging cart, comprising:
a battery pack;
the charging system is connected with the battery pack and comprises a charger and a charging gun, and the charger comprises a controller;
after the charging gun is connected with the external equipment, the controller sends a charger handshake message, judges the type of the external equipment according to the type of the received message, and determines whether the battery pack is powered on or powered off based on the type of the external equipment.
According to one aspect of the invention, the external devices include social vehicles and smart charge piles; when the controller receives the vehicle handshake message, the external equipment connected with the charging gun is judged to be a social vehicle, and when the controller receives the charging pile handshake message, the external equipment connected with the charging gun is judged to be an intelligent charging pile.
According to one aspect of the invention, the charging gun is provided with the direct current contactor, after the controller judges that the external equipment connected with the charging gun is the intelligent charging pile, the charging gun closes the direct current contactor, then the controller periodically sends a direct current contactor closing instruction, and after receiving a direct current contactor closing success message sent by the intelligent charging pile, a starting command is sent to the intelligent charging pile to start insulation detection.
According to one aspect of the invention, the charger further comprises a bidirectional DC/DC, and the bidirectional DC/DC adopts a Buck/Boost circuit.
According to an aspect of the present invention, when the controller determines that the connected external device is a social vehicle, the controller controls the bidirectional DC/DC to operate in a Buck mode so that the battery pack of the mobile charging cart charges the social vehicle; when the controller judges that the connected external equipment is the intelligent charging pile, the controller controls the bidirectional DC/DC to work in a Boost mode, so that the intelligent charging pile charges a battery pack of the mobile charging trolley.
The invention has the following technical effects:
after the charging gun of the mobile charging trolley is connected with the external equipment, a controller of the mobile charging trolley sends a message, and then the type of the connected equipment is judged according to the type of the received message, so that whether a battery pack of the mobile charging trolley is discharged or powered on is determined. Therefore, two charging guns are not required to be arranged, redundancy of the charging guns is avoided, and cost is saved.
Drawings
Fig. 1 shows a schematic view of a mobile charging trolley and a device connectable thereto according to the invention.
The drawings are merely schematic and show only those parts which are necessary for elucidating the invention, other parts being omitted or merely mentioned. That is, the present invention may include other components in addition to those shown in the drawings.
Detailed Description
The following describes the technical scheme of the present invention in detail with reference to the accompanying drawings.
Referring to fig. 1, the mobile charging cart of the present invention includes a battery pack and a charging system. The charging system comprises a charger and a charging gun, and the charger further comprises a controller. The mobile charging trolley also comprises bidirectional DC/DC because the same charging gun is required to be used for different application scenes. Preferably, the bi-directional DC/DC employs Buck/Boost circuitry. The charging system is connected with the battery pack through a charger, the bidirectional DC/DC in the charger is connected with a charging gun, and the charging gun is connected with external equipment. Specifically, the external device may be an intelligent charging stake or a social vehicle.
The charging gun has the same structure as the charging gun in the prior art. For example, it may include a direct current power supply line, a device ground line, a charging communication line, a charging connection confirmation line, and a low voltage auxiliary power supply line. When the charging gun is connected with an external device, the charging system is not aware of the type of the connected device, and the level change can be judged through the corresponding port of the low-voltage auxiliary power supply line. For example, when 4V is detected, the charging gun may be considered to have been successfully connected to an external device, at which time the charging gun and the external device may be locked, and the low-voltage auxiliary power supply may be turned on. And then, the charging system sends a charger handshake message to the connected equipment through the controller.
The charging system then interprets the type of device connected based on the message received by the controller. Specifically, if the controller receives a vehicle handshake message, it may be determined that the connected device is a social vehicle; if the controller receives the charging pile handshake message, the controller can judge that the connected equipment is an intelligent charging pile.
Specifically, the controller receives the vehicle handshake message because if the connected external device is a social vehicle, the process of insulation detection, charging handshake identification, charging parameter configuration, charging state entering and the like, which are performed later, is not different from the process of charging the social vehicle by the charging stake in the prior art according to the existing technical standards, for example, the communication protocol between the non-vehicle-mounted conductive charger and the battery management system of the GB/T27930-2015, the social vehicle replies to the vehicle handshake message after receiving the charger handshake message, and the controller determines that the connected external device is the social vehicle after receiving the message.
The controller receives the charging pile handshake message because if the connected external device is an intelligent charging pile, the charging pile handshake message is transmitted after the charging gun is physically connected with the intelligent charging pile and after the charging pile detects the level change of the corresponding port of the low-voltage auxiliary power supply line. Therefore, the controller in the mobile charging trolley receives the charging pile handshake message, thereby determining that the connected external equipment is an intelligent charging pile.
Insulation detection may then be performed. Specifically, the charging gun and the intelligent charging pile are both provided with direct current contactors. First, the charging gun closes the direct current contactor, and then the controller periodically sends a direct current contactor closing instruction. And after the intelligent charging pile receives the direct current contactor closing instruction, closing the direct current contactor, and replying a successful closing message of the direct current contactor. And after receiving a successful message of closing the direct-current contactor, the controller of the mobile charging trolley sends a starting command to start insulation detection. Then the intelligent charging pile receives the starting command message, the voltage rises to the charging voltage, for example 650V, and the starting success is recovered. After the charging gun is insulated, the controller receives a successful starting message, and starts the power module after a certain time (for example, 10 s) is delayed, so as to start the charging process.
When the controller determines that the external device to which the mobile charging cart is connected is a social vehicle or an intelligent charging pile, a corresponding operation is performed through bidirectional DC/DC. Specifically, when the controller determines that the connected external device is a social vehicle, the controller controls the bidirectional DC/DC to operate in a Buck mode, wherein Vin > Vout, and current flows from the battery pack of the mobile charging trolley to the social vehicle, so that the battery pack of the mobile charging trolley charges the social vehicle; when the controller judges that the connected external equipment is the intelligent charging pile, the controller controls the bidirectional DC/DC to work in a Boost mode, vin < Vout of the bidirectional DC/DC at the moment, and current flows from the intelligent charging pile to a battery pack of the mobile charging trolley, so that the intelligent charging pile charges the battery pack of the mobile charging trolley.
In the process of charging the social vehicle by the mobile charging trolley, judging whether to end charging by a battery management system of the social vehicle according to whether the charging process is normal, whether the battery state reaches a charging end condition set by the battery management system of the social vehicle and whether a charging machine of the mobile charging trolley stops charging messages are received; and the charger of the mobile charging trolley judges whether to end charging according to whether a charging stopping instruction is received, whether a charging process is normal, whether a manually set charging parameter value is reached, whether a charging stopping message of a battery management system of the social vehicle is received or not.
In the process of charging the mobile charging trolley by the intelligent charging pile, judging whether to end charging by a charger of the mobile charging trolley according to whether the charging process is normal, whether the battery state reaches the charging end condition set by the charger of the mobile charging trolley and whether a charging stopping message of the intelligent charging pile is received; and the intelligent charging pile judges whether to end charging according to whether a charging stopping instruction is received, whether a charging process is normal, whether a manually set charging parameter value is reached, and whether a charging machine of the mobile charging trolley stops charging messages is received.
Therefore, the mobile charging trolley judges the type of equipment connected with the charging gun through the type of the message received by the controller, so as to determine whether to receive power or discharge. Therefore, the mobile charging trolley can be connected with a social vehicle or an intelligent charging pile only by being provided with one charging gun, so that redundancy of the charging gun is avoided, and the cost is saved.
The foregoing has been a clear description of specific embodiments of the present invention. Of course, the foregoing description is only exemplary embodiments of the invention regarding its spirit and principles. It will be apparent to those skilled in the art that various changes may be made to the described examples and equivalents thereof without departing from the spirit and principles of the invention, which are intended to be within the scope of the invention as defined in the following claims.
Claims (5)
1. A mobile charging cart, comprising:
a battery pack;
the charging system is connected with the battery pack and comprises a charger and a charging gun, and the charger comprises a controller;
it is characterized in that the method comprises the steps of,
after the charging gun is connected with external equipment, the controller sends a charger handshake message, judges the type of the external equipment according to the message type of the received message from the external equipment, and determines whether the battery pack is powered on or powered off based on the type of the external equipment;
the external equipment comprises a social vehicle and an intelligent charging pile; and when the type of the external equipment is judged to be a social vehicle, determining that the battery pack discharges to charge the social vehicle, and when the type of the external equipment is judged to be an intelligent charging pile, determining that the battery pack receives electricity to charge the battery pack by utilizing the intelligent charging pile.
2. The mobile charging trolley of claim 1, wherein when the controller receives a vehicle handshake message, the external device connected to the charging gun is determined to be a social vehicle, and when the controller receives a charging pile handshake message, the external device connected to the charging gun is determined to be an intelligent charging pile.
3. The mobile charging trolley according to claim 2, wherein a direct current contactor is arranged on the charging gun, the charging gun is closed after the controller judges that the external device connected with the charging gun is an intelligent charging pile, then the controller periodically sends a direct current contactor closing instruction, and after receiving a direct current contactor closing success message sent by the intelligent charging pile, a start-up command is sent to the intelligent charging pile to start insulation detection.
4. The mobile charging cart of claim 1, wherein the charger further comprises a bi-directional DC/DC employing a Buck/Boost circuit.
5. The mobile charging cart of claim 4, wherein when the controller determines that the connected external device is a social vehicle, the controller controls the bi-directional DC/DC to operate in a Buck mode such that the battery pack of the mobile charging cart charges the social vehicle; when the controller determines that it is connected to
When the external equipment of the system is an intelligent charging pile, the controller controls the bidirectional DC/DC to work in a Boost mode,
so that the intelligent charging pile charges the battery pack of the mobile charging trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911029704.0A CN110723002B (en) | 2019-10-28 | 2019-10-28 | Mobile charging trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911029704.0A CN110723002B (en) | 2019-10-28 | 2019-10-28 | Mobile charging trolley |
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| Publication Number | Publication Date |
|---|---|
| CN110723002A CN110723002A (en) | 2020-01-24 |
| CN110723002B true CN110723002B (en) | 2023-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911029704.0A Active CN110723002B (en) | 2019-10-28 | 2019-10-28 | Mobile charging trolley |
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| CN (1) | CN110723002B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112104014A (en) * | 2020-08-07 | 2020-12-18 | 深圳市拓邦锂电池有限公司 | Battery charging and discharging control method and device and battery |
| CN114338758A (en) * | 2021-12-28 | 2022-04-12 | 苏州亿为新能源科技有限公司 | Power-off method, device, electronic device and storage medium applied to charging scene |
| CN115723602A (en) * | 2022-12-15 | 2023-03-03 | 上海蚕丛机器人科技有限公司 | Mobile charging robot and associated charging piles and charging stations |
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| Publication number | Publication date |
|---|---|
| CN110723002A (en) | 2020-01-24 |
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