CN114801857A - Control method and system for working mode of battery replacement in battery replacement station - Google Patents
Control method and system for working mode of battery replacement in battery replacement station Download PDFInfo
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- CN114801857A CN114801857A CN202210483951.3A CN202210483951A CN114801857A CN 114801857 A CN114801857 A CN 114801857A CN 202210483951 A CN202210483951 A CN 202210483951A CN 114801857 A CN114801857 A CN 114801857A
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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
- B60L53/80—Exchanging energy storage elements, e.g. removable batteries
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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
- B60L53/30—Constructional details of charging stations
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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
- B60L53/60—Monitoring or controlling charging stations
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- 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
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- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a control method and a system for the working mode of a battery replacing battery in a battery replacing station, wherein the battery replacing station comprises an in-station monitoring platform and a plurality of groups of chargers and charging bins which are in one-to-one correspondence, and a charging motor in each group is in communication connection with a battery pack installed in the charging bin; the in-station monitoring platform is in communication connection with each charger; the control method comprises the following steps: the in-station monitoring platform sends a power-on instruction to a corresponding charger; the charger controls the low-voltage electrification of the battery pack in the corresponding charging bin after receiving the electrification instruction; the method comprises the steps that an in-station monitoring platform responds to a charging starting instruction and sends a first message to a charger; after receiving the first message, the charger forwards the first message to a battery pack in a corresponding charging bin; and the battery pack enters a power conversion station charging mode after receiving the first message. The invention can simplify the structural design of the battery replacement station, reduce the cost and ensure that the battery replacement direct current charging in the battery replacement station can be better realized.
Description
The application is a divisional application of an invention patent with the application date of 2018, 12 and 14, and the application number of 2018115325292, and the invention name of a control method and a system for the working mode of a battery replacement in a battery replacement station.
Technical Field
The invention relates to the field of charging of battery replacement batteries in a battery replacement station, in particular to a method and a system for controlling a working mode of a battery replacement battery in a battery replacement station.
Background
At present, direct current quick charging of non-battery-replaceable vehicles in the market is performed according to GBT27930-2015 communication protocol between non-vehicle-mounted conductive charger and battery management system of electric vehicles, GBT18487.1-2015 electric vehicle conductive charging system, GBT20234.1-2015 part 3 direct current charging interface of connecting device for electric vehicle conductive charging, and the like, but some current whole vehicle factories detect a (signal) wake-up signals and CC2 (signals for determining whether the connection between the battery and the charger is reliable) charging connection signals, and some direct current quick charging connection signals are detected by a BMS (battery management system) put in the battery. If charging of a battery replacement battery (also called a battery pack) is started only by the aid of the A + wake-up signal and the CC2 charging connection signal in the battery replacement station, the normal charging function of the battery cannot be ensured by means of compatibility with all vehicle types. On the other hand, due to the complex structure of the power change station, if the control on the a + wake-up signal and the CC2 charging connection signal is added, the wiring harness wiring in the station is more complex, the cost is increased, and the pin resource of the quick-change connector is occupied.
In addition, the application scene in the battery replacement station is more special, the battery pack is required to be placed in a charging bin of the battery replacement station besides the requirement of meeting the normal direct-current quick charging operation of the battery pack, and the BMS of the battery pack is required to upload monitoring data to a monitoring platform in the station to monitor the battery state no matter whether the battery pack is charged or not; when the battery pack is positioned on a vehicle, most of the vehicle factories do not want to add unnecessary monitoring information to reduce the load rate of the field bus, so that the battery pack is required to be capable of clearly judging whether the battery pack is positioned in the battery replacement station or on the vehicle.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, the wiring is complex, the cost is high and the charging of a battery replacement battery is not compatible with all vehicle types in a mode of starting the charging of the battery replacement battery through an A + wake-up signal and a CC2 charging connection signal in a battery replacement station, and provides a control method and a control system for a working mode of the battery replacement battery in the battery replacement station, which can simplify the structural design of the battery replacement station, reduce the cost and ensure better realization of the direct-current charging of the battery replacement battery in the battery replacement station.
The invention solves the technical problems through the following technical scheme:
the invention provides a control method of a working mode of a battery replacing battery in a battery replacing station, wherein the battery replacing station comprises an in-station monitoring platform and a plurality of groups of chargers and charging bins which are in one-to-one correspondence, and the chargers in each group are in communication connection with battery packs arranged in the charging bins; the in-station monitoring platform is in communication connection with each charger;
the control method comprises the following steps:
the in-station monitoring platform sends a power-on instruction to the corresponding charger;
the charger controls the battery pack in the corresponding charging bin to be electrified at low voltage after receiving the electrifying instruction;
the station monitoring platform responds to a charging starting instruction and sends a first message to the charger;
after receiving the first message, the charger forwards the first message to the battery pack in the corresponding charging bin;
and the battery pack enters a power conversion station charging mode after receiving the first message.
In the scheme, the power-on instruction is an instruction which is input to the in-station monitoring platform from the outside, and is realized according to specific requirements, for example, the power-on instruction can be an instruction which is input to the in-station monitoring platform by a field worker through an operation interface.
In the scheme, after receiving the first message, the battery pack starts to perform handshake operation with the charger, and enters a charging mode of the battery changing station: during the charging process, the dc charging control is performed according to the procedure specified in GBT27930 (a protocol), including a handshake phase, a configuration phase, a charging phase, and a charging end phase (the charging end includes a fault termination, a full charge termination, and a manual termination). The first message is a message for informing the battery pack to enter a charging mode of the battery replacement station, wherein the mode refers to that the battery pack is in a charging state. The specific message content may be set according to actual requirements as long as the battery pack can be analyzed and identified, for example, a certain byte in the message may be set as a preset value to represent entering charging, and set as other values to represent exiting charging, which is not described herein again.
According to the scheme, based on a hardware architecture in the battery replacement station, the purpose that the in-station monitoring platform sends the first message to the target charger is achieved, the target charger forwards the first message to the battery pack located in the charging bin corresponding to the target charger one by one, so that the battery pack can accurately determine when to enter a battery replacement station charging mode for charging, an A + wake-up signal and a CC2 charging connection signal provided by the existing charger for the battery pack are replaced, and a direct current charging flow in the battery replacement station can be well achieved under the conditions that the system design of the battery replacement station is simplified and the cost is reduced.
Preferably, the control method further includes the steps of:
and when the battery pack is in the charging mode of the battery replacement station, sending battery monitoring information to the in-station monitoring platform.
According to the scheme, the battery pack can still upload battery monitoring information to a monitoring platform in the charging station when being charged in the charging bin of the battery changing station, so that the battery state can be monitored. The battery monitoring information is set according to specific monitoring requirements, and may be, for example, the current capacity, voltage, current, temperature, and the like of the battery.
Preferably, the control method further includes the steps of:
when the battery pack is installed in the charging bin, the in-station monitoring platform periodically sends a second message to the charger corresponding to the charging bin;
after receiving the second message, the charger forwards the second message to the battery pack in the corresponding charging bin;
the battery pack judges whether the second message is periodically received or not, if not, the battery pack enters a driving mode, if so, the battery pack judges whether the battery pack is in the charging mode of the power swapping station, if not, the battery pack enters a monitoring mode of the power swapping station, and if so, the charging mode of the power swapping station is maintained.
In the scheme, the second message is used for enabling the battery pack in the power exchanging station to know that the battery pack is in the power exchanging station, and the battery pack can receive the second message periodically sent by the monitoring platform in the station only when the battery pack is in the station. The battery pack may receive a second message periodically while it is in the station. The battery pack can acquire the current mode of the battery pack, and specifically comprises the following steps: the battery pack is in a default mode after being powered on, the default mode is set according to specific requirements, and the battery pack directly enters a power station replacement monitoring mode after receiving the second message; if the battery pack knows that the battery pack is in the charging mode of the battery changing station after receiving the second message, keeping the charging mode of the battery changing station unchanged, and continuing to charge; if the battery pack is already in the power swapping station monitoring mode, entering the power swapping station monitoring mode is equivalent to maintaining the power swapping station monitoring mode, which depends on a specific implementation manner of mode setting, and is a conventional technical means in the art and is not described herein again.
In this scheme, it is a conventional technical means in the art that the battery pack determines whether the battery pack is in a charging mode of the battery swapping station, and the implementation manner is various, for example, the determination may be implemented by reading a mode value in a register, or implemented in other manners, which is not described herein again.
In the scheme, the battery pack can effectively identify whether the battery pack is in the battery replacement station or on the vehicle by judging whether the battery pack periodically receives the second message periodically sent by the monitoring platform in the station. Specifically, if the battery pack does not regularly receive the second message, the battery pack determines that the battery pack is located on the vehicle and is in a driving mode; if the battery pack regularly receives the second message, whether the battery pack is in a charging mode of the battery changing station is further judged, if yes, the charging state is continuously kept, and if not, the battery pack is switched to a monitoring mode of the battery changing station. Therefore, the battery replacing device can know whether the battery replacing device is in the battery replacing station or on the vehicle, and effectively solves the problem that the battery replacing device cannot identify whether the battery replacing device is on the vehicle when the battery replacing device is on the vehicle but the whole vehicle communication fails.
Preferably, the control method further comprises the steps of:
the station monitoring platform responds to a charging closing instruction and sends a third message to the charger;
after receiving the third message, the charger forwards the third message to the battery pack in the corresponding charging bin;
and the battery pack enters a power conversion station monitoring mode after receiving the third message.
According to the scheme, the method for exiting from the charging mode of the battery changing station is realized, the outside can trigger the in-station monitoring platform to send the third message to the target charger by sending the charging-off instruction under the condition that the target battery changing station is charged completely or the charging is interrupted, and the target charger forwards the third message to the battery packs located in the charging bins corresponding to the target charger one by one, so that the battery packs exit from the charging mode of the battery changing station and enter the monitoring mode of the battery changing station.
Preferably, when the battery pack is in the power station replacement monitoring mode and the power station replacement charging mode, battery monitoring information is periodically sent to the in-station monitoring platform.
According to the scheme, the battery replacement can accurately identify whether the battery replacement is in the battery replacement station or on the vehicle, and the battery pack does not upload battery monitoring information when the battery replacement is on the vehicle, so that the load rate of a field bus is reduced. The scheme further realizes that the battery pack can upload battery monitoring information to the monitoring platform in the station to monitor the battery state no matter whether the battery pack is charged or not as long as the battery pack is installed in the charging bin of the charging station.
The invention also provides a control system for the working mode of the battery replacement in the battery replacement station, which comprises an in-station monitoring platform and a plurality of groups of chargers and charging bins which correspond to each other one by one, wherein the chargers in each group are in communication connection with the battery packs arranged in the charging bins; the in-station monitoring platform is in communication connection with each charger;
the station monitoring platform is used for sending a power-on instruction to the corresponding charger;
the charger is used for controlling the low-voltage electrification of the battery pack in the corresponding charging bin after receiving the electrification instruction;
the station monitoring platform is also used for responding to a charging starting instruction and sending a first message to the charger;
the charger is further used for forwarding the first message to the battery pack in the corresponding charging bin after receiving the first message;
and the battery pack is used for entering a power conversion station charging mode after receiving the first message.
Preferably, the battery pack is further configured to send battery monitoring information to the in-station monitoring platform when the battery pack is in the charging mode of the battery swapping station.
Preferably, when the battery pack is installed in the charging bin, the in-station monitoring platform is further configured to periodically send a second message to the charger corresponding to the charging bin;
the charger is further used for forwarding the second message to the battery pack in the corresponding charging bin after receiving the second message;
the battery pack is further used for judging whether the second message is periodically received, if not, entering a driving mode, if so, the battery pack is further used for judging whether the battery pack is in the power changing station charging mode, if not, entering the power changing station monitoring mode, and if so, the power changing station charging mode is maintained.
Preferably, the in-station monitoring platform is further configured to respond to a charging shutdown instruction and send a third message to the charger;
the charger is further used for forwarding the third message to the battery pack in the corresponding charging bin after receiving the third message;
and the battery pack is also used for entering a power conversion station monitoring mode after receiving the third message.
Preferably, the battery pack is further configured to periodically send battery monitoring information to the in-station monitoring platform when the battery pack is in the power swapping station monitoring mode and the power swapping station charging mode.
The positive progress effects of the invention are as follows: the control method and the system for the working mode of the battery replacement in the battery replacement station provided by the invention have the advantages that the monitoring platform in the station sends the first message to the target charger, and the target charger forwards the first message to the battery packs positioned in the charging bins corresponding to the target charger one by one, so that the battery packs can accurately determine when to enter the internal charging mode for charging, and the A + wake-up signal and the CC2 charging connection signal provided by the conventional charger for the battery packs are replaced, and the direct current charging flow in the battery replacement station can be better realized under the conditions of simplifying the system design of the battery replacement station and reducing the cost. In addition, the battery monitoring information can be sent to the monitoring platform only when the battery replacement battery is in the battery replacement station, the load rate of a field bus when the battery replacement battery is positioned on a vehicle for charging is reduced, and meanwhile, the problem that the battery replacement battery cannot be identified to be on the vehicle when the battery replacement battery is positioned on the vehicle but the whole vehicle communication fails is effectively solved.
Drawings
Fig. 1 is a schematic structural diagram of a control system of a working mode of a battery replacement in a battery replacement station according to embodiment 1 of the present invention.
Fig. 2 is a flowchart of a method for controlling a working mode of a battery replacement in a battery replacement station according to embodiment 2 of the present invention.
Fig. 3 is a flowchart of a control method for a working mode of a battery replacement in a battery replacement station according to embodiment 3 of the present invention.
Fig. 4 is a flowchart of the determination on the side of the in-station monitoring platform in the example based on the inventive concept.
Fig. 5 is a determination flowchart on the charger side in an example based on the inventive concept.
Fig. 6 is a flowchart of determination on the battery pack side in an example according to the inventive concept.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1, the present embodiment provides a control system for a working mode of a battery replacement in a battery replacement station, which includes a monitoring platform 1 in the station, and a plurality of sets of a charger 2 and a charging bin 3 that are in one-to-one correspondence, only two sets are shown in the figure, and a charging motor 2 in each set is in communication connection with a battery pack 4 installed in the charging bin 3 through the corresponding charging bin 3; the in-station monitoring platform 1 is in communication connection with each charger 2.
In specific implementation, the in-station monitoring platform 1 is in communication connection with the plurality of chargers 2 through a CAN (controller area network) bus CAN 1; the charging machines 2 in each group are connected to the battery packs 4 mounted in the charging compartment 3 by means of quick-change connectors 5 via a further group of CAN buses CAN 0.
In this embodiment, the in-station monitoring platform 1 is configured to send a power-on instruction to the corresponding charger 2. The charger 2 is used for controlling the battery pack 4 in the corresponding charging bin 3 to be electrified at low voltage after receiving the electrifying instruction. After the battery pack 4 is powered on at low voltage, various messages CAN be received through the CAN0 bus and further processed. The in-station monitoring platform 1 is further configured to respond to a charging start instruction input from the outside, and send a first message to the charger 2. The charger 2 is further configured to forward the first message to the battery pack 4 in the corresponding charging bin 3 after receiving the first message. And the battery pack 4 is used for communicating with the corresponding charger 2 after receiving the first message so as to enter a charging mode of the battery changing station.
In this embodiment, the in-station monitoring platform knows which charging bin has the battery pack installed therein, and the in-station monitoring platform is further configured to periodically send the second message to the charger corresponding to the charging bin having the battery pack installed therein. And the charger is also used for forwarding the second message to the battery pack in the corresponding charging bin after receiving the second message.
In this embodiment, whether the battery pack is in the station or on the vehicle, whether the battery pack periodically receives the second message is determined, if not, the battery pack enters a driving mode, which indicates that the battery pack is on the vehicle at the moment, if so, the battery pack is further used for further determining whether the battery pack is in a power changing station charging mode, if so, the power changing station charging mode is continuously maintained, otherwise, the battery pack further determines whether the battery pack is in the power changing station monitoring mode, if not, the battery pack enters the power changing station monitoring mode, and if so, the battery pack continues to maintain the power changing station monitoring mode.
In this embodiment, the in-station monitoring platform is further configured to respond to a charging shutdown instruction input from the outside, and send a third message to the charger; the charger is also used for forwarding the third message to the battery pack in the corresponding charging bin after receiving the third message; the battery pack is also used for entering a power conversion station monitoring mode after receiving the third message.
In this embodiment, the battery pack is further configured to periodically send battery monitoring information to the in-station monitoring platform when the battery pack is in the charging mode.
The control system for the working mode of the battery replacement in the battery replacement station provided in this embodiment realizes that the monitoring platform in the station sends the first message to the target charger, and the target charger retransmits the first message to the battery pack located in the charging bin corresponding to the target charger, so that the battery pack can effectively determine when to enter the charging mode in the station for charging, and replaces the a + wake-up signal and the CC2 charging connection signal provided by the existing charger for the battery pack, and can also ensure a better direct current charging flow in the battery replacement station under the conditions of simplifying the system design of the battery replacement station and reducing the cost.
In this embodiment, the battery pack can effectively identify whether the battery pack is located in the power exchanging station or on the vehicle by judging whether the battery pack periodically receives the second message periodically sent by the monitoring platform in the station. Specifically, if the battery pack does not regularly receive the second message, the battery pack determines that the battery pack is located on the vehicle and is in a driving mode; if the battery pack regularly receives the second message, whether the battery pack is in a charging mode of the battery changing station is further judged, if yes, the charging state is continuously kept, and if not, the battery pack is switched to a monitoring mode of the battery changing station. Therefore, the battery replacing device can know whether the battery replacing device is in the battery replacing station or on the vehicle, and effectively solves the problem that the battery replacing device cannot identify whether the battery replacing device is on the vehicle when the battery replacing device is on the vehicle but the whole vehicle communication fails. Based on the method, the battery pack does not upload battery monitoring information when the battery replacement battery is positioned on the vehicle, so that the load rate of the field bus is reduced. The embodiment further realizes that the battery pack can upload monitoring data to a monitoring platform in the station to monitor the battery state regardless of whether the battery pack is charged or not as long as the battery pack is installed in the charging bin of the battery replacing station, and the requirement that the battery replacing station can effectively monitor each battery replacing battery in the battery replacing station is met.
Example 2
The embodiment provides a method for controlling a working mode of a battery replacement in a battery replacement station, which is implemented based on the control system for the working mode of the battery replacement in the battery replacement station in the embodiment 1.
As shown in fig. 2, the control method of the present embodiment includes the following steps:
And step 102, after receiving a power-on instruction, the charger controls the battery pack in the corresponding charging bin to be powered on at low voltage.
And 103, the in-station monitoring platform responds to the charging starting instruction and sends a first message to the charger.
And step 104, after receiving the first message, the charger forwards the first message to the battery pack in the corresponding charging bin.
And 105, after receiving the first message, the battery pack communicates with a corresponding charger to enter a charging mode of the battery changing station.
And 106, the in-station monitoring platform responds to the charging closing instruction and sends a third message to the charger.
And step 107, after receiving the third message, the charger forwards the third message to the battery pack in the corresponding charging bin.
And step 108, entering a power conversion station monitoring mode after the battery pack receives the third message.
In this embodiment, when the battery pack is in the charging mode, the battery pack sends the battery monitoring information to the in-station monitoring platform.
In this embodiment, based on a hardware architecture of a control system in the battery replacement station, the in-station monitoring platform sends the first message to the target charger, and the target charger forwards the first message to the battery pack located in the charging bin corresponding to the target charger, so that the battery pack can effectively determine when to enter the in-station charging mode for charging, and an a + wake-up signal and a CC2 charging connection signal provided by the existing charger for the battery pack are replaced. The method further realizes the exit from the charging mode of the power exchange station, and when the target power exchange battery is completely charged or the charging is interrupted, the outside can trigger the in-station monitoring platform to send a third message to the target charger by sending a charging-off instruction, and the target charger forwards the third message to the battery pack located in the charging bin corresponding to the target charger, so that the battery pack exits from the charging mode of the power exchange station and enters the monitoring mode of the power exchange station.
Example 3
The embodiment provides a method for controlling a working mode of a battery replacement in a battery replacement station, which is implemented based on the control system for the working mode of the battery replacement in the battery replacement station in the embodiment 1.
In this embodiment, the message ID (identifier) of each message is a message ID for a target charger and a corresponding target battery pack, byte 0 of the message is used to indicate information of a position where the battery is located, a default value of byte 0 is 0x00, when the value of byte 0 is 0x01, it indicates that the battery is located in a battery replacement station, and other values are reserved values; byte1 is used to represent a battery charge on/off control command: a value of 0x00 indicates charge off, a value of 0x01 indicates charge on, and the other values are reserved values.
As shown in fig. 3, the control method of the present embodiment includes the steps of:
The concrete description is as follows:
when the battery pack is electrified at low voltage, the in-station monitoring platform periodically sends a message with the message content of a second message to the target charger under the condition that other instructions for operating the battery pack are not received, and the battery pack enters a power station replacement monitoring mode when recognizing that the periodically received message is the second message. The value of byte 0 of the second packet is 0x01, and the value of byte1 is 0x 00.
When receiving a charging starting instruction (such as a user card swiping charging instruction) input from the outside, the in-station monitoring platform responds to the instruction, at the moment, the in-station monitoring platform periodically sends a message with a message content of a first message to a target charger, when recognizing that the periodically received message is the first message, the battery pack further judges whether the battery pack is in a power station swapping charging mode, if not, the battery pack enters the power station swapping monitoring mode, and if so, the power station swapping charging mode is kept. The value of byte 0 of the first packet is 0x01, and the value of byte1 is 0x 01.
When receiving a charging closing instruction (such as a charging ending instruction of a user swiping a card again) input from the outside, the in-station monitoring platform responds to the instruction, at this time, the content of the message periodically sent by the in-station monitoring platform is a third message, and when recognizing that the periodically received message is the third message, the battery pack enters a power station replacement monitoring mode. The value of byte 0 of the third packet is 0x01, and the value of byte1 is 0x 00.
The control method in this embodiment further includes the following steps:
whether the battery pack is in the battery replacement station or on the vehicle can be judged whether corresponding messages are periodically received, if not, the vehicle running mode is entered, and if yes, the corresponding mode setting is carried out by referring to the contents of the messages. Therefore, the problem that the battery is still on the vehicle when the battery is located on the vehicle but the whole vehicle communication fails can not be identified while the battery can be charged normally is solved.
In this embodiment, when the battery pack is in the charging mode, the battery pack sends the battery monitoring information to the in-station monitoring platform.
The control method for the working mode of the battery replacement in the battery replacement station provided by this embodiment realizes that the monitoring platform in the station sends the first message to the target charger, and the target charger forwards the first message to the battery pack located in the charging bin corresponding to the target charger, so that the battery pack can effectively determine when to enter the charging mode in the station for charging, and replaces the a + wake-up signal and the CC2 charging connection signal provided by the existing charger for the battery pack, and can also ensure that a better direct current charging flow in the battery replacement station is realized under the conditions of simplifying the system design of the battery replacement station and reducing the cost. Meanwhile, the battery monitoring information can be sent to the monitoring platform only when the battery is in the battery replacement station, the load rate of a field bus when the battery is positioned on a vehicle for charging is reduced, and the problem that the battery cannot be identified to be on the vehicle when the battery is positioned on the vehicle but the whole vehicle communication fails is effectively solved.
The following further illustrates the technical solutions and effects of the present invention by means of specific examples.
Fig. 4 to 6 show the judgment process of the working modes of the in-station monitoring platform, the charger and the battery pack in three angles according to an example of the inventive concept.
The message ID of a certain charger and the battery pack in the corresponding charging bin is 0x 18718056.
Fig. 4 is a schematic flow chart of the in-station monitoring platform in the control process of implementing the working mode of replacing the battery in the battery replacing station. Specifically, the in-station monitoring platform sends a low-voltage power-on instruction to a charger corresponding to a certain target charging bin when knowing that a battery pack is installed in the target charging bin, so as to control the charger to power on the battery pack in the corresponding charging bin at a low voltage, and thus, the BMS in the battery pack can work normally. Then, the station monitoring platform periodically (with a period of 100 milliseconds) sends a message with a message ID of 0x18718056, a Byte 0 of the message is 0x01, and a Byte1 of the message is 0x00 to the CAN1 network corresponding to the charger, and then the station monitoring platform periodically inquires whether an external instruction needs to start charging the battery, if not, the station monitoring platform continues to periodically send a message with a message ID of 0x18718056, a Byte 0 of the message is 0x01, and a message with a Byte1 of 0x00 to the CAN1 network corresponding to the charger, and if so, the station monitoring platform periodically sends a message with a message ID of 0x 18756, a Byte 0 of the message is 0x01, and a message with a Byte1 of 0x01 to the CAN1 network corresponding to the charger, so that the corresponding battery pack enters a charging mode of the battery swapping station. And then, the monitoring platform in the power station regularly inquires whether an external instruction needs to close the charging of the battery, if not, the monitoring platform continuously and periodically sends a message with the ID of 0x18718056, the byte 0 of the message is 0x01, and the byte1 of the message is 0x01 to the CAN1 network corresponding to the charger, if so, the monitoring platform periodically sends a message with the ID of 0x18718056, the byte 0 of the message is 0x01, and the byte1 of the message is 0x00 to the CAN1 network corresponding to the charger, so that the battery pack stops charging, exits the charging mode of the power station to enter the monitoring mode of the power station, and the monitoring platform circularly goes back and forth.
Fig. 5 is a schematic flow chart of the control process of the charger in implementing the working mode of replacing the battery in the battery replacement station. Specifically, after receiving a low-voltage power-on instruction sent by a monitoring platform in the station, the charger controls the battery pack in the corresponding charging bin to be powered on at low voltage, and then monitors whether the CAN1 network receives a message with a message ID of 0x18718056, if not, the monitoring is continued, and if so, the charger forwards the message with the message ID of 0x18718056 received on the CAN1 network to the battery pack corresponding to the CAN0 network in real time.
Fig. 6 is a schematic flow chart of a battery pack in a control process of realizing a working mode of replacing a battery in a battery replacement station. Specifically, the charger controls the battery pack to be electrified at low voltage according to a received instruction, the BMS in the battery pack is in a normal working mode after being electrified, and the BMS judges whether the BMS periodically receives a message with the ID of 0x18718056 and the byte 0 of the message of 0x01 after being electrified at low voltage, namely the battery is in a battery replacement station, if not, the battery is positioned on a vehicle at the moment and is in a driving mode, and if the message is received, the battery is in the battery replacement station and enters a battery replacement station monitoring mode; the BMS in the battery pack continuously judges whether the BMS periodically receives a message with the message ID of 0x18718056, the byte 0 of the message is 0x01 and the byte1 of the message is 0x01, if the BMS receives the message, the BMS starts to communicate with a charger and enters a charging mode of the battery changing station; if not, continuously judging whether the message has a message with a periodically received message ID of 0x18718056, a byte 0 of the message of 0x01 and a byte1 of 0x00, if not, circularly judging whether the message has a flow of periodically received messages with a periodically received message ID of 0x18718056, a byte 0 of the message of 0x01 and a byte1 of 0x01, if so, circularly judging whether the message has a flow of periodically received messages with an ID of 0x18718056 and a byte 0 of the message of 0x01, namely the message with the battery in the battery swap station.
The structure design of the power station can be simplified, and the cost is reduced. And a battery power station changing mode is added, so that the battery monitoring information CAN be sent to the in-station monitoring platform only when the battery is in the power station changing mode, and the consumption of a CAN network when the battery is positioned on a vehicle is reduced. Meanwhile, whether the communication loss of the whole vehicle is a normal phenomenon can be effectively distinguished. A charging mode and a charging station monitoring mode of the charging station are added to simulate an A + wake-up signal and a CC2 connection confirmation signal provided by a charger, so that the conditions of entering direct current charging and exiting direct current charging are defined.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (16)
1. A control method for the working mode of a battery replacement in a battery replacement station is characterized in that the control method is applied to the battery replacement station, the battery replacement station comprises an in-station monitoring platform and a plurality of groups of chargers and charging bins which are in one-to-one correspondence, and the chargers in each group are in communication connection with battery packs installed in the charging bins; the in-station monitoring platform is in communication connection with each charger;
the control method comprises the following steps:
the in-station monitoring platform sends a power-on instruction to the corresponding charger;
the charger controls the battery pack in the corresponding charging bin to be electrified at low voltage after receiving the electrifying instruction;
the station monitoring platform responds to a charging starting instruction and sends a first message to the charger;
after receiving the first message, the charger forwards the first message to the corresponding battery pack in the charging bin, so that the battery pack enters a charging mode of a power conversion station after receiving the first message;
the control method further comprises the following steps:
when the battery pack is installed in the charging bin, the in-station monitoring platform periodically sends a second message to the charger corresponding to the charging bin;
and after receiving the second message, the charger forwards the second message to the corresponding battery pack in the charging bin, so that the battery pack can judge whether the battery pack is in the battery replacement station.
2. The method for controlling the operating mode of the battery replacement in the battery replacement station as claimed in claim 1, wherein the method further comprises the steps of:
the station monitoring platform responds to a charging closing instruction and sends a third message to the charger;
and after receiving the third message, the charger forwards the third message to the corresponding battery pack in the charging bin, so that the battery pack enters a power conversion station monitoring mode after receiving the third message.
3. The method for controlling the working mode of the battery replacement in the battery replacement station as claimed in claim 1, wherein the method further comprises the steps of:
and the in-station monitoring platform receives the battery monitoring information sent by the battery pack.
4. A control method for a working mode of a battery replacement in a battery replacement station is characterized in that the control method is applied to a battery pack, and the control method comprises the following steps:
entering a power conversion station charging mode after receiving the first message;
and judging whether a second message is periodically received or not so as to judge whether the battery pack is in the battery replacement station or not.
5. The method for controlling the operating mode of the battery replacement in the battery replacement station as claimed in claim 4, wherein the method further comprises the steps of:
and when the battery pack is in the charging mode of the battery replacement station, sending battery monitoring information to an in-station monitoring platform.
6. The method for controlling the operating mode of the battery replacement in the battery replacement station as claimed in claim 4, wherein the method further comprises the steps of:
if the battery pack judges that the second message is not received periodically, entering a driving mode, if the battery pack judges that the second message is received periodically, judging whether the battery pack is in the charging mode of the battery replacement station, if not, entering the monitoring mode of the battery replacement station, and if so, keeping the charging mode of the battery replacement station.
7. The method for controlling the operating mode of the battery replacement in the battery replacement station as claimed in claim 4, wherein the method further comprises the steps of:
and the battery pack enters a power conversion station monitoring mode after receiving the third message.
8. The method for controlling the working mode of a battery replacement in a battery replacement station as claimed in claim 7, wherein the battery pack periodically sends battery monitoring information to the in-station monitoring platform both in the battery replacement station monitoring mode and in the battery replacement station charging mode.
9. The control system is applied to a battery changing station, the battery changing station comprises an in-station monitoring platform and a plurality of groups of chargers and charging bins which are in one-to-one correspondence, and the chargers in each group are in communication connection with battery packs installed in the charging bins; the in-station monitoring platform is in communication connection with each charger;
the station monitoring platform is used for sending a power-on instruction to the corresponding charger;
the charger is used for controlling the battery pack in the corresponding charging bin to be electrified at low voltage after receiving the electrifying instruction;
the station monitoring platform is also used for responding to a charging starting instruction and sending a first message to the charger;
the charger is further used for forwarding the first message to the battery pack in the corresponding charging bin after receiving the first message, so that the battery pack enters a charging mode of a power conversion station after receiving the first message;
when the battery pack is installed in the charging bin, the in-station monitoring platform is further used for periodically sending a second message to the charger corresponding to the charging bin;
the charger is further configured to forward the second message to the battery pack in the corresponding charging bin after receiving the second message, so that the battery pack can determine whether the battery pack is in the battery replacement station.
10. The system for controlling an operating mode of a battery swap in a battery swap station of claim 9,
the in-station monitoring platform is also used for responding to a charging closing instruction and sending a third message to the charger;
and the charger is also used for forwarding the third message to the corresponding battery pack in the charging bin after receiving the third message so that the battery pack enters a power conversion station monitoring mode after receiving the third message.
11. The system for controlling the operating mode of a battery replacement unit in a battery replacement station as claimed in claim 9, wherein the monitoring platform in the station is further configured to receive battery monitoring information sent by the battery pack.
12. A control system for a working mode of a battery replacement in a battery replacement station is characterized in that the control system is applied to a battery pack, and the battery pack is used for entering a charging mode of the battery replacement station after receiving a first message; the battery pack is further used for judging whether a second message is periodically received or not so as to judge whether the battery pack is in the battery replacement station or not.
13. The system for controlling the operating mode of a charging battery in a charging station as claimed in claim 12, wherein the battery pack is further configured to send battery monitoring information to an in-station monitoring platform when in the charging mode of the charging station.
14. The system for controlling the operating mode of a battery replacement in a battery replacement station as claimed in claim 12, wherein if the battery pack determines that the second message is not received periodically, if the battery pack enters a driving mode, if the battery pack determines that the second message is received periodically, the battery pack is further configured to determine whether the battery replacement station is in the charging mode, if not, the battery replacement station monitoring mode is entered, and if so, the battery replacement station charging mode is maintained.
15. The system of claim 12, wherein the battery pack is further configured to enter a power conversion station monitoring mode after receiving the third message.
16. The system for controlling the operating mode of a charging battery in a charging station as claimed in claim 15, wherein the battery pack is further configured to periodically send battery monitoring information to the in-station monitoring platform when in the charging station monitoring mode and the charging station charging mode.
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| CN202210483951.3A CN114801857A (en) | 2018-12-14 | 2018-12-14 | Control method and system for working mode of battery replacement in battery replacement station |
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| CN202210483951.3A CN114801857A (en) | 2018-12-14 | 2018-12-14 | Control method and system for working mode of battery replacement in battery replacement station |
| CN201811532529.2A CN111319509B (en) | 2018-12-14 | 2018-12-14 | Control method and system for working mode of battery replacement in battery replacement station |
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| CN201811532529.2A Active CN111319509B (en) | 2018-12-14 | 2018-12-14 | Control method and system for working mode of battery replacement in battery replacement station |
| CN202210483951.3A Pending CN114801857A (en) | 2018-12-14 | 2018-12-14 | Control method and system for working mode of battery replacement in battery replacement station |
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| CN111806288B (en) * | 2020-07-10 | 2021-12-24 | 博众精工科技股份有限公司 | Charging control system and charging and replacing station |
| CN111923758B (en) * | 2020-07-17 | 2022-06-10 | 蓝谷智慧(北京)能源科技有限公司 | Battery management method for battery replacement station |
| CN112406582A (en) * | 2020-11-12 | 2021-02-26 | 上海能辉科技股份有限公司 | Light storage, charging and replacement integrated heavy truck battery replacement container and charging method thereof |
| CN113543070B (en) * | 2021-06-29 | 2022-11-29 | 东风汽车集团股份有限公司 | System and method for exchanging battery between battery exchange station and vehicle end through Bluetooth communication |
| EP4166381A4 (en) * | 2021-08-31 | 2023-07-26 | Contemporary Amperex Technology Co., Limited | Charging management method for battery swapping station, battery swapping cabinet, and system |
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| KR101088798B1 (en) * | 2010-03-25 | 2011-12-01 | 한국전력공사 | Method for transmitting protocol message using CAN communication |
| KR20130076743A (en) * | 2011-12-28 | 2013-07-08 | 엘에스산전 주식회사 | Method for providing service of electric power control plan for electric power control target device, and operating method of charging station managing server |
| CN103683398B (en) * | 2013-11-28 | 2016-08-17 | 许继电气股份有限公司 | A kind of charging and conversion electric station system |
| CN104882644B (en) * | 2015-05-20 | 2018-06-08 | 常州大学 | Electric vehicle electric charging station Intelligentized battery detection device |
| CN106809038A (en) * | 2015-11-27 | 2017-06-09 | 上海汽车集团股份有限公司 | The non-contact type wireless charge control method and system of electric automobile |
| CN106849237B (en) * | 2017-02-16 | 2023-10-13 | 上海蔚来汽车有限公司 | Flexible charging control system and method and flexible charging system |
| CN108808751B (en) * | 2017-04-27 | 2021-06-01 | 奥动新能源汽车科技有限公司 | Power supply system and method for battery replacement station |
| CN107627880A (en) * | 2017-09-15 | 2018-01-26 | 苏州易换骑网络科技有限公司 | A kind of charging system of electric car |
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