CN117734498A - Method and device for charging electric automobile room, computer equipment and storage medium - Google Patents
Method and device for charging electric automobile room, computer equipment and storage medium Download PDFInfo
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- CN117734498A CN117734498A CN202311728005.1A CN202311728005A CN117734498A CN 117734498 A CN117734498 A CN 117734498A CN 202311728005 A CN202311728005 A CN 202311728005A CN 117734498 A CN117734498 A CN 117734498A
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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
- 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
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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
- 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
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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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The present disclosure relates to the field of electric vehicle charging and discharging technologies, and in particular, to a charging method and apparatus for an electric vehicle, a computer device, and a storage medium. The method comprises the following steps: under the condition that the connection state between the discharging vehicle and the discharging connection device and the connection state between the discharging connection device and the charging vehicle are good, at least one detection is carried out on a discharging loop of the discharging vehicle by simulating an off-board charger; under the condition that all detection results meet the requirements, simulating the off-vehicle charger, and starting a handshake connection flow of the discharging vehicle and the charging vehicle according to a preset communication protocol of the vehicle pile; acquiring a charging voltage range required by a charging vehicle according to the interaction message; and according to the charging voltage range, charging the charging vehicle through a discharging loop. The method can solve the problem that the discharge power and the system efficiency are limited in the process of discharging the vehicle.
Description
Technical Field
The present disclosure relates to the field of electric vehicle charging and discharging technologies, and in particular, to a charging method and apparatus for an electric vehicle, a computer device, and a storage medium.
Background
With the technology integration and consumption upgrading of the fields of automobiles, energy sources, traffic, information and the like, new energy automobile products are not just vehicles, development is carried out to intelligent mobile energy storage terminals, application scenes are becoming rich, and the outward discharge of the vehicles also becomes a focus of attention of users. Vehicle discharge is classified into V2L (vehicle-to-load discharge), V2G (vehicle-to-grid discharge) and V2V (vehicle-to-vehicle discharge) according to the type of discharge load; according to the type of the electric energy output by the discharging vehicle, the discharging vehicle is divided into alternating current discharging and direct current discharging.
At present, V2V is applied to scenes such as road rescue, emergent power supply and the like, alternating current V2V converts electric energy of a power battery into alternating current to be output through a bidirectional vehicle-mounted charger of a discharging vehicle, and the charging vehicle converts the alternating current into direct current to be output to the power battery through the vehicle-mounted charger. However, in the process of discharging vehicles by means of a vehicle-mounted charger, the discharge power and the system efficiency are limited.
Therefore, there is a need for a charging method, device, computer device and storage medium between electric vehicles to solve the problem that the discharging power and the system efficiency are limited in the process of discharging vehicles.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a method, an apparatus, a computer device, and a storage medium for charging an electric automobile, which can solve the problem that both discharge power and system efficiency are limited in the process of discharging a vehicle.
In a first aspect, the present application provides a method for charging an electric automobile compartment, including:
simulating an off-board charger to perform at least one detection of a discharge loop of the discharge vehicle when a connection state between the discharge vehicle and a discharge connection device and a connection state between the discharge connection device and a charge vehicle are good; wherein the at least one detection includes output loop insulation detection, output voltage bleed detection, output voltage detection, and output current detection;
obtaining various detection results of a discharge loop;
under the condition that all detection results meet the requirements, simulating an off-vehicle charger, and starting a handshake connection flow of the discharging vehicle and the charging vehicle according to a preset communication protocol of a vehicle pile;
acquiring an interaction message generated in the handshake connection flow;
acquiring a charging voltage range required by the charging vehicle according to the interaction message;
And according to the charging voltage range, charging the charging vehicle through the discharging loop.
In one embodiment, the discharging vehicle is provided with a DC-DC voltage conversion module for converting a power battery voltage of the discharging vehicle into a discharging output voltage; the charging of the charging vehicle through the discharging loop according to the charging voltage range includes:
and under the condition that the maximum value of the charging demand voltage of the charging vehicle is larger than the minimum value of the discharging output voltage, the discharging vehicle charges the charging vehicle through a discharging loop according to the charging demand voltage of the charging vehicle.
In one embodiment, after the discharging vehicle charges the charging vehicle through the discharging circuit, the method further includes:
acquiring the voltage change condition of a power battery of the charging vehicle;
and adjusting the voltage value of the discharge output voltage according to the voltage change condition.
In one embodiment, the method further comprises:
acquiring a discharge state of the discharge vehicle, wherein the discharge state comprises the residual electric quantity of a power battery of the discharge vehicle, a fault condition and a charge message receiving condition;
And under the conditions that the residual electric quantity is lower than an electric quantity threshold value, a discharging fault exists or a message for stopping charging is received, the discharging loop is disconnected, and the charging of the charging vehicle is stopped.
In one embodiment, before the charging vehicle through the discharging loop according to the charging voltage range, the method further includes:
sending a charging request message to the charging vehicle, wherein the charging request message comprises the minimum value of the discharging output voltage and the maximum value of the discharging output voltage;
disconnecting the handshake connection flow and displaying a discharge failure reason when the discharging vehicle does not receive a charge readiness message sent by the charging vehicle or the communication is overtime;
and executing the step of charging the charging vehicle through the discharging loop according to the charging voltage range under the condition that the charging readiness message is received or communication is not overtime.
In one embodiment, when the connection state between the discharging vehicle and the discharging connection device and the connection state between the discharging connection device and the charging vehicle are both good, determining whether the power battery of the discharging vehicle has an external charging function and no fault exists;
And under the condition that the power battery of the discharging vehicle has an external charging function and no fault exists, controlling the output current of the low-voltage auxiliary power supply of the discharging vehicle, and simulating the off-board charger to detect a discharging loop of the discharging vehicle.
In a second aspect, the present application further provides a charging device for an electric automobile bay, including:
the detection module is used for carrying out at least one detection on a discharge loop of the discharge vehicle by simulating an off-vehicle charger under the condition that the connection state between the discharge vehicle and the discharge connection device and the connection state between the discharge connection device and the charge vehicle are good; wherein the at least one detection includes output loop insulation detection, output voltage bleed detection, output voltage detection, and output current detection;
the acquisition module is used for acquiring various detection results of the discharge loop;
the signal connection module is used for starting a handshake connection flow of the discharging vehicle and the charging vehicle according to a preset communication protocol of the vehicle pile by simulating the off-vehicle charger under the condition that all detection results meet the requirements;
The acquisition module is also used for acquiring the interactive message generated in the handshake connection flow;
the analysis module is used for acquiring a charging voltage range required by the charging vehicle according to the interaction message;
and the charging module is used for charging the charging vehicle through the discharging loop according to the charging voltage range.
In a third aspect, the present application also provides a computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
simulating an off-board charger to perform at least one detection of a discharge loop of the discharge vehicle when a connection state between the discharge vehicle and a discharge connection device and a connection state between the discharge connection device and a charge vehicle are good; wherein the at least one detection includes output loop insulation detection, output voltage bleed detection, output voltage detection, and output current detection;
obtaining various detection results of a discharge loop;
under the condition that all detection results meet the requirements, simulating an off-vehicle charger, and starting a handshake connection flow of the discharging vehicle and the charging vehicle according to a preset communication protocol of a vehicle pile;
Acquiring an interaction message generated in the handshake connection flow;
acquiring a charging voltage range required by the charging vehicle according to the interaction message;
and according to the charging voltage range, charging the charging vehicle through the discharging loop.
In a fourth aspect, the present application also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
simulating an off-board charger to perform at least one detection of a discharge loop of the discharge vehicle when a connection state between the discharge vehicle and a discharge connection device and a connection state between the discharge connection device and a charge vehicle are good; wherein the at least one detection includes output loop insulation detection, output voltage bleed detection, output voltage detection, and output current detection;
obtaining various detection results of a discharge loop;
under the condition that all detection results meet the requirements, simulating an off-vehicle charger, and starting a handshake connection flow of the discharging vehicle and the charging vehicle according to a preset communication protocol of a vehicle pile;
Acquiring an interaction message generated in the handshake connection flow;
acquiring a charging voltage range required by the charging vehicle according to the interaction message;
and according to the charging voltage range, charging the charging vehicle through the discharging loop.
In a fifth aspect, the present application also provides a computer program product comprising a computer program which, when executed by a processor, performs the steps of:
simulating an off-board charger to perform at least one detection of a discharge loop of the discharge vehicle when a connection state between the discharge vehicle and a discharge connection device and a connection state between the discharge connection device and a charge vehicle are good; wherein the at least one detection includes output loop insulation detection, output voltage bleed detection, output voltage detection, and output current detection;
obtaining various detection results of a discharge loop;
under the condition that all detection results meet the requirements, simulating an off-vehicle charger, and starting a handshake connection flow of the discharging vehicle and the charging vehicle according to a preset communication protocol of a vehicle pile;
acquiring an interaction message generated in the handshake connection flow;
Acquiring a charging voltage range required by the charging vehicle according to the interaction message;
and according to the charging voltage range, charging the charging vehicle through the discharging loop.
According to the charging method, the charging device, the computer equipment and the storage medium between the electric automobiles, the discharging vehicle is simulated to be an off-vehicle charger, and the charging vehicle is charged, so that the problem that in the process of discharging the vehicle by the vehicle-mounted charger in the traditional technology, the discharging power and the system efficiency are limited can be solved. And carry out multiple detection to the discharge circuit, including output circuit insulation detection, output voltage discharge detection, output voltage detection and output current detection, can ensure that the connected state is good to reduce potential security risk. Through carrying out handshake connection process with the pre-set communication protocol of car stake, can accurately acquire the required charging voltage scope of charge vehicle to adjust the output voltage of discharging the return circuit according to the demand, increase the compatibility with different model charge vehicle. The discharge loop is detected and connected through simulating the off-board charger, so that the interactive message can be acquired in advance and the voltage range of the charging vehicle can be judged, and the output voltage and current can be efficiently regulated in the charging process, so that a stable and efficient charging process is realized. In general, the technical scheme improves the safety, compatibility and efficiency of charging connection by detecting the discharging loop and adjusting the output voltage according to the interaction message so as to meet the charging requirements of different charging vehicles.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for a person having ordinary skill in the art.
FIG. 1 is a diagram of an application environment of a method of charging an electric vehicle compartment in one embodiment;
FIG. 2 is a flow chart of a method of charging an electric vehicle according to one embodiment;
FIG. 3 is a schematic view showing the constitution of a discharging vehicle in one embodiment;
FIG. 4 is a flow chart of a charging method between electric vehicles according to another embodiment;
FIG. 5 is a block diagram of a charging device between electric vehicles in one embodiment;
fig. 6 is an internal structural diagram of a computer device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The charging method between electric vehicles provided by the embodiment of the application can be applied to an application environment shown in fig. 1. Wherein the terminal 102 communicates with the server 104 via a network. The data storage system may store data that the server 104 needs to process. The data storage system may be integrated on the server 104 or may be located on a cloud or other network server.
In the present application, the terminal 102 is a discharging vehicle, and the terminal 102 performs at least one detection on a discharging loop of the discharging vehicle by simulating an off-vehicle charger when a connection state between the discharging vehicle and the discharging connection device and a connection state between the discharging connection device and the charging vehicle are good; wherein the at least one detection includes output loop insulation detection, output voltage bleed detection, output voltage detection, and output current detection; obtaining various detection results of a discharge loop; under the condition that all detection results meet the requirements, simulating the off-vehicle charger, and starting a handshake connection flow of the discharging vehicle and the charging vehicle according to a preset communication protocol of the vehicle pile; acquiring an interactive message generated in a handshake connection flow; acquiring a charging voltage range required by a charging vehicle according to the interaction message; and according to the charging voltage range, charging the charging vehicle through a discharging loop.
The terminal 102 may be, but not limited to, various personal computers, notebook computers, smart phones, tablet computers, internet of things devices, and portable wearable devices, where the internet of things devices may be smart speakers, smart televisions, smart air conditioners, smart vehicle devices, and the like. The portable wearable device may be a smart watch, smart bracelet, headset, or the like. The server 104 may be implemented as a stand-alone server or as a server cluster of multiple servers.
In an exemplary embodiment, as shown in fig. 2, there is provided a method of charging an electric car room, which is described as an example of application of the method to the terminal in fig. 1, specifically, to a discharging vehicle, including the following steps S202 to S212. Wherein:
step S202, simulating an off-board charger to at least one detection of a discharge loop of a discharge vehicle when the connection state between the discharge vehicle and the discharge connection device is good and the connection state between the discharge connection device and the charge vehicle is good; the at least one detection comprises output loop insulation detection, output voltage discharge detection, output voltage detection and output current detection.
Referring to fig. 3, the discharging vehicle is provided with a whole vehicle control unit, a battery management system, a power battery, a discharging loop control and detection module, and a DC-DC voltage conversion module.
The discharging connection device is set as a V2V discharging connection device in the embodiment, and the discharging connection device is provided with a direct current charging gun, a direct current discharging gun and a control guide circuit, and is provided with a direct current charging gun electronic lock and a control guide circuit for control, and transmits direct current electric energy and low-voltage communication signals.
The discharging vehicle is provided with a direct current charging seat, supports a vehicle and off-board charger charging CAN communication protocol and a charging control guiding time sequence, and outputs direct current electric energy according to the requirement. The charging vehicle is provided with a direct current charging seat, and supports a direct current charging function. The off-vehicle charger is a charging device arranged at a roadside, a parking lot, or the like, and is used for charging an electric vehicle.
The vehicle control unit detects the connection state of the discharging vehicle, the V2V direct current discharging connection device and the charging vehicle, and controls the starting of a discharging process according to the vehicle state and the direct current discharging connection state.
The battery management system is in charge CAN communication with the charging vehicle, and the power battery of the discharging vehicle is controlled to output direct-current electric energy according to the discharging instruction of the whole vehicle control unit.
The power battery of the discharging vehicle outputs direct-current electric energy to the DC-DC voltage conversion module according to a discharging instruction of the battery management system.
The discharging loop control and detection module detects the output loop state of the DC-DC voltage conversion module, and turns on or off the output loop according to a discharging instruction of the whole vehicle control unit.
The low-voltage auxiliary power supply module simulates an auxiliary power supply of the off-board charger and outputs 12V direct-current voltage according to a control instruction.
The DC-DC voltage conversion module converts direct current electric energy of a power battery of a discharging vehicle into required voltage according to a discharging instruction sent by the whole vehicle control unit and outputs the required voltage to the power battery of the charging vehicle, and the power battery supports voltage stabilizing output within a certain voltage range, so that the power battery has insulation monitoring and discharging functions.
At least one detection of a discharge loop of a discharge vehicle includes: by detecting the insulation condition of the discharge loop, no insulation fault is ensured to occur (if the insulation resistance is judged to be higher than 500 ohm/V, the insulation detection is judged to pass), and current leakage or other potential safety hazards are avoided. And detecting the voltage discharge condition in the discharge loop to ensure that no bad voltage leakage phenomenon occurs, thereby ensuring the effective transmission of electric energy. And detecting the output voltage level of the discharge loop, ensuring that the output voltage level meets the required range of the required charging vehicle, and avoiding damage or low charging efficiency caused by over-high or over-low voltage. The output current level of the discharging loop is detected, so that the discharging loop is ensured to be in a normal range, and meets the charging requirement of a charging vehicle, so that the efficient completion of a charging process is ensured. Through the detection of the aspects, the normal operation of a discharging loop can be ensured, and the electric energy transmission meeting the requirements of a charging vehicle can be provided, so that the safety, the reliability and the efficiency of the charging process are ensured.
Step S204, each detection result of the discharge loop is obtained.
Specifically, according to the output circuit insulation detection result, whether the insulation performance of the discharge circuit is qualified or not is judged, and whether insulation faults or current leakage and the like exist or not is judged.
And determining the voltage discharge condition in the discharge loop according to the output voltage discharge detection result, wherein the condition comprises whether a voltage discharge phenomenon exceeding a specified range exists or not.
According to the output voltage detection result, the output voltage level of the discharging loop is measured, and whether the output voltage level is within a required charging voltage range is determined, so that the charging vehicle can normally receive proper voltage.
And measuring the output current level of the discharge loop according to the output current detection result, and ensuring that the output current level is within a current range required by a charging vehicle so as to ensure the stability and the efficiency of the charging process.
Step S206, under the condition that all detection results meet the requirements, the handshaking connection flow of the discharging vehicle and the charging vehicle is started by simulating the off-vehicle charger according to the preset communication protocol of the vehicle pile.
Specifically, each detection result of the off-board charger is ensured to meet the requirements, no abnormal condition exists, and the normal working state of the charger is ensured. The battery, the power system and the like of the discharging vehicle are ensured to be in normal working states, and the charging requirement is met. And determining the communication mode and parameter setting between the charger and the discharging vehicle according to a preset communication protocol of the off-vehicle charger. According to the requirements of a communication protocol, the charger and the discharging vehicle are connected in a handshaking way, a communication link is established, and the identity and the supported charging function of each other are confirmed. After the establishment is successful, charging energy is started to be provided for the discharging vehicle according to the settings of the charging machine and the discharging vehicle.
Through the steps, the charging process can be ensured to be carried out under safe, reliable and effective conditions under the condition that all detection results meet the requirements. The starting of the handshake connection flow is to ensure that the communication and charging process between the discharging vehicle and the charging vehicle can be smoothly carried out, and the two sides can mutually confirm and support the corresponding charging function.
Step S208, the interactive message generated in the handshake connection flow is obtained.
Specifically, the interactive message generated by the handshake connection procedure is communication data exchanged between the two parties in the process of handshake connection between the discharging vehicle and the charging vehicle. The interaction messages contain information such as commands, parameters, states and the like between the two parties, and are used for confirming identities of the two parties, supporting charging functions, negotiating charging parameters and the like. Interactive message
Step S210, acquiring a charging voltage range required by the charging vehicle according to the interaction message.
Specifically, the range of the charging voltage required by the charging vehicle is obtained according to the interaction message, which means that the range of the charging voltage value required by the charging vehicle is determined by analyzing the related data in the interaction message. The interaction message can be displayed on the screens of the vehicle-mounted terminals of the discharging vehicle and the charging vehicle, so that a driver can know the charging condition conveniently.
The interaction message may include the requirement and the requirement of the charging vehicle, and the discharging vehicle may adjust the charging voltage range according to the information so as to meet the requirement of the charging vehicle. The charging voltage range refers to a voltage range that can be applied to a charging vehicle, which may be limited by the battery and power system of the charging vehicle and the requirements of the charging standard.
By analyzing the interaction message, the discharging vehicle can acquire the charging voltage range requirement of the charging vehicle, and accordingly, the charging voltage range requirement of the charging vehicle can be set and adjusted correspondingly, so that the charging vehicle can be provided with proper charging voltage in the range. The purpose is to ensure that the charging connection between the charging vehicle and the discharging vehicle can be carried out on the premise of meeting the vehicle requirements and the charging standard, and to ensure the safety and the effectiveness of the charging process.
Step S212, charging the charging vehicle through the discharging loop according to the charging voltage range.
Specifically, according to the charging voltage range, charging the charging vehicle through the discharging loop means that the charging machine provides proper voltage and current to charge the charging vehicle through the discharging loop in the charging process. The discharge circuit is a circuit system inside the discharge vehicle for converting electric energy from an external power source into electric energy required for charging the vehicle and transmitting it into a battery of the charge vehicle.
According to the charging voltage range, the discharging vehicle can adjust the output voltage of the discharging loop so as to meet the charging requirement of the charging vehicle. The discharging vehicle can adjust the output voltage of the discharging loop according to the charging voltage range requirement of the charging vehicle, so as to ensure that the charging vehicle is provided with proper voltage within the allowable range.
Meanwhile, the discharging vehicle can control the current output in the discharging loop according to the charging voltage range so as to ensure the safety of the charging process. By controlling the output current, the charger can provide proper charging current according to the requirement of a charging vehicle and the state of a battery, so that the charging process is stable and efficient.
In the charging method between the electric automobiles, the discharging vehicle is simulated to be an off-vehicle charger to charge the charging vehicle, so that the problem that in the process of discharging the vehicle by the vehicle-mounted charger in the traditional technology, the discharging power and the system efficiency are limited can be solved. And carry out multiple detection to the discharge circuit, including output circuit insulation detection, output voltage discharge detection, output voltage detection and output current detection, can ensure that the connected state is good to reduce potential security risk. Through carrying out handshake connection process with the pre-set communication protocol of car stake, can accurately acquire the required charging voltage scope of charge vehicle to adjust the output voltage of discharging the return circuit according to the demand, increase the compatibility with different model charge vehicle. The discharge loop is detected and connected through simulating the off-board charger, so that the interactive message can be acquired in advance and the voltage range of the charging vehicle can be judged, and the output voltage and current can be efficiently regulated in the charging process, so that a stable and efficient charging process is realized. In general, the technical scheme improves the safety, compatibility and efficiency of charging connection by detecting the discharging loop and adjusting the output voltage according to the interaction message so as to meet the charging requirements of different charging vehicles.
In one exemplary embodiment, charging a charging vehicle through a discharge loop according to a charging voltage range includes:
when the maximum value of the charging demand voltage of the charging vehicle is greater than the minimum value of the discharging output voltage, the discharging vehicle charges the charging vehicle through the discharging circuit according to the charging demand voltage of the charging vehicle.
In particular, the discharge circuit is a circuit responsible for transmitting electrical energy from an external power source to the charging vehicle. Charging vehicles have different charging requirements, including a desired charging voltage range. If the maximum value of the charging demand voltage of the charging vehicle is greater than the minimum value of the discharging output voltage, the output voltage of the discharging loop can meet the demand range of the charging vehicle. In this case, the discharging circuit may adjust the output voltage according to the charging demand voltage of the charging vehicle to meet the voltage demand of the charging vehicle, and transmit electric energy to the charging vehicle through the discharging circuit, thereby charging the charging vehicle.
In this embodiment, the discharging circuit adjusts the output voltage according to the charging demand voltage of the charging vehicle to meet the demand, and charges the charging vehicle through the discharging circuit, so as to adjust the output voltage of the discharging circuit according to the demand, and increase the compatibility with charging vehicles of different models.
In an exemplary embodiment, after the discharging vehicle charges the charging vehicle through the discharging circuit, the method further includes:
acquiring the voltage change condition of a power battery of the charging vehicle; and adjusting the voltage value of the discharge output voltage according to the voltage change condition.
Specifically, during charging, the voltage of the power battery of the charging vehicle may change over time. In order to ensure that the battery of a charging vehicle is charged within a safe range, a discharging vehicle needs to monitor the voltage change condition of the power battery of the charging vehicle in real time. By detecting the battery voltage of the charging vehicle, the discharging vehicle can know the charging progress and the state of the charging battery for subsequent adjustment. The discharging vehicle can be correspondingly adjusted according to the acquired voltage change condition of the power battery of the charging vehicle. If the power battery voltage of the charging vehicle rises, indicating that charging is nearly complete or has been full, the discharging vehicle may correspondingly decrease the voltage value of the discharging output voltage to avoid overcharging. Conversely, if the power battery voltage of the charging vehicle drops, indicating that charging is still in progress, the discharging vehicle may appropriately increase the voltage value of the discharging output voltage to accelerate the charging process.
In this embodiment, by acquiring the voltage variation condition of the power battery of the charging vehicle and adjusting the voltage value of the discharging output voltage according to the voltage variation condition, the discharging vehicle can better control the charging process, ensure that the charging vehicle can charge under safe and effective conditions, and improve the charging efficiency and the charging performance.
In one exemplary embodiment, a discharge state of a discharge vehicle is obtained, wherein the discharge state comprises the residual capacity, the fault condition and the charge message receiving condition of a power battery of the discharge vehicle; and under the conditions that the residual electric quantity is lower than an electric quantity threshold value, a discharging fault exists or a message for stopping charging is received, the discharging loop is disconnected, and the charging of the charging vehicle is stopped.
Specifically, the discharging vehicle needs to monitor the remaining power of the power battery of the charging vehicle in real time. By acquiring the information of the remaining power, the discharging vehicle can know the energy storage condition of the battery of the charging vehicle so as to perform timely disconnection of charging.
The discharging vehicle needs to detect whether a fault condition exists in the discharging process. These faults may include battery faults, circuit faults, or other related technical problems. Through the monitoring of the discharge fault condition, the discharge vehicle can avoid further damage to the charge vehicle, and the safety of charging is ensured.
The discharging vehicle also needs to monitor whether or not message information related to charging is received. The charging message may include instructions for starting charging, suspending charging, stopping charging, etc. By receiving and analyzing these messages, the discharging vehicle can understand the charge state of the charging vehicle and make corresponding charge control and disconnection operations.
And under the conditions that the residual electric quantity is lower than an electric quantity threshold value, a discharging fault exists or a message for stopping charging is received, the discharging vehicle can disconnect a discharging loop and stop charging the charging vehicle. This is to ensure that the charging process can be terminated in time when the charging vehicle is in trouble or needs to stop charging, avoiding further damage to the charging vehicle or unsafe conditions.
In this embodiment, by acquiring the discharge state of the discharge vehicle, including the remaining power of the power battery, the fault condition and the charge message receiving condition, the discharge vehicle can monitor and control the charging process in real time, ensure the safety and effectiveness of charging, and make a decision to disconnect the discharge loop and stop charging according to the relevant conditions.
In an exemplary embodiment, as shown in fig. 4, before the charging vehicle is charged through the discharging loop according to the charging voltage range, the method further includes:
Step S402, a charging request message is sent to a charging vehicle, wherein the charging request message comprises a minimum value of a discharging output voltage and a maximum value of the discharging output voltage;
step S404, disconnecting the handshake connection flow and displaying the cause of discharge failure when the discharging vehicle does not receive a charge ready message sent by the charging vehicle or the communication is overtime;
in step S406, when the charge ready message is received or the communication is not timed out, a step of charging the charging vehicle through the discharging loop according to the charging voltage range is performed.
Specifically, the discharging vehicle needs to send a charging request message to the charging vehicle, where the message includes a minimum value of the discharging output voltage and a maximum value of the discharging output voltage. This ensures that the charging vehicle is specifically charged and that the charging operation is performed following the discharge voltage range given by the discharging vehicle. If the charging vehicle does not receive the charging ready message sent by the discharging vehicle or the communication is overtime, the discharging vehicle can disconnect the handshake connection flow and display the reason of discharging failure. This is to avoid the continuation of the charging in the event of an abnormal communication failure or occurrence of an abnormality, to ensure the safety and reliability of the charging. And under the condition that a charging readiness message is received or communication is not overtime, the discharging vehicle charges the charging vehicle through the discharging loop according to the charging voltage range. This means that the discharging vehicle can perform reasonable charging operation according to the requirements of the charging vehicle and the discharging voltage range, and the stability and safety of the charging process are ensured.
In this embodiment, before charging, the discharging vehicle needs to send a charging request message and includes a requirement of a discharging output voltage range, and at the same time, processes a situation that a charging ready message is not received or communication is overtime, and executes a charging step according to the charging voltage range when a condition is satisfied. These measures aim to ensure the smooth progress of the charging process and to ensure the safety and effectiveness of the charging.
In an exemplary embodiment, referring to fig. 3, the discharging vehicle is further provided with a low-voltage auxiliary power module for simulating an off-board charger auxiliary power, and outputting 12V dc power according to the control command.
Judging whether the power battery of the discharging vehicle has an external charging function and has no fault or not under the condition that the connection state between the discharging vehicle and the discharging connection device and the connection state between the discharging connection device and the charging vehicle are good;
when the power battery of the discharging vehicle has an external charging function and no fault exists, the output current of the low-voltage auxiliary power supply of the discharging vehicle is controlled, and the discharging loop of the discharging vehicle is detected by simulating the off-board charger.
Specifically, when the connection state between the discharge vehicle and the discharge connection device and the connection state between the discharge connection device and the charge vehicle are good, it can be determined whether the power battery of the discharge vehicle has an external charging function and there is no failure. When the power battery of the discharging vehicle has an external charging function and no fault exists, the off-vehicle charger can be simulated by controlling the output current of the low-voltage auxiliary power supply of the discharging vehicle so as to detect a discharging loop of the discharging vehicle.
In this embodiment, by determining the connection states between the discharging vehicle and the discharging connection device and between the discharging connection device and the charging vehicle, it is possible to determine whether the power battery has an external charging function and whether there is a failure. The discharge loop of the discharge vehicle can be detected by controlling the output current of the low-voltage auxiliary power supply of the discharge vehicle and simulating the auxiliary power supply function of the off-vehicle charger. This helps to verify proper operation of the discharge circuit and charge safety of the charged vehicle. In summary, the power battery can be ensured to have an external charging function without faults, and the normal operation of the discharging loop can be effectively detected and verified, so that the safety and the reliability of the charging process are ensured.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a charging device of the electric automobile room for realizing the charging method of the electric automobile room. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the charging device for one or more electric vehicles provided below may refer to the limitation of the charging method for an electric vehicle, which is not described herein.
In one exemplary embodiment, as shown in fig. 5, there is provided a charging apparatus for an electric car bay, comprising: the detection module 502 is configured to perform at least one detection on a discharge loop of the discharge vehicle by simulating an off-board charger when a connection state between the discharge vehicle and the discharge connection device and a connection state between the discharge connection device and the charge vehicle are both good; wherein the at least one detection includes output loop insulation detection, output voltage bleed detection, output voltage detection, and output current detection;
an obtaining module 504, configured to obtain each detection result of the discharge circuit;
the signal connection module 506 is configured to start a handshake connection procedure of the discharging vehicle and the charging vehicle according to a preset communication protocol of the vehicle pile by simulating the off-vehicle charger under the condition that each detection result meets the requirement;
the obtaining module 504 is further configured to obtain an interaction message generated in the handshake connection procedure;
the parsing module 508 is configured to obtain a charging voltage range required by the charging vehicle according to the interaction message;
the charging module 510 is configured to charge the charging vehicle through the discharging loop according to the charging voltage range.
In one exemplary embodiment, in one of the embodiments, the discharging vehicle is provided with a DC-DC voltage conversion module for converting a power battery voltage of the discharging vehicle into a discharging output voltage; according to the charging voltage range, charge the vehicle through discharging the return circuit, include:
when the maximum value of the charging demand voltage of the charging vehicle is greater than the minimum value of the discharging output voltage, the discharging vehicle charges the charging vehicle through the discharging circuit according to the charging demand voltage of the charging vehicle.
In an exemplary embodiment, the obtaining module 504 is further configured to obtain a voltage change condition of a power battery of the charging vehicle;
the adjusting module is used for adjusting the voltage value of the discharge output voltage according to the voltage change condition.
In an exemplary embodiment, the obtaining module 504 is further configured to obtain a discharge state of the discharging vehicle, where the discharge state includes a remaining power of a power battery of the discharging vehicle, a fault condition, and a charge message receiving condition;
the charging module 510 is further configured to disconnect the discharging loop and stop charging the charging vehicle when the remaining power is lower than the power threshold, a discharging fault exists, or a charging stop message is received.
In an exemplary embodiment, the sending module is configured to send a charging request packet to the charging vehicle, where the charging request packet includes a minimum value of the discharging output voltage and a maximum value of the discharging output voltage;
the display module is used for disconnecting the handshake connection flow and displaying the cause of discharge failure when the discharging vehicle does not receive a charge readiness message sent by the charging vehicle or the communication is overtime;
the charging module 510 is further configured to perform a step of charging the charging vehicle through the discharging loop according to the charging voltage range if the charging ready message is received or the communication is not timed out.
In an exemplary embodiment, the judging module is configured to judge whether the power battery of the discharging vehicle has an external charging function and has no fault when the connection state between the discharging vehicle and the discharging connection device is good and the connection state between the discharging connection device and the charging vehicle is good;
the detection module 502 is further configured to control an output current of a low-voltage auxiliary power supply of the discharge vehicle when the power battery of the discharge vehicle has an external charging function and no fault exists, and perform discharge loop detection of the discharge vehicle by performing simulation on an off-board charger.
The respective modules in the charging device between electric vehicles described above may be implemented in whole or in part by software, hardware, and combinations thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In an exemplary embodiment, a computer device, which may be a terminal, is provided, and an internal structure diagram thereof may be as shown in fig. 6. The computer device includes a processor, a memory, an input/output interface, a communication interface, a display unit, and an input means. The processor, the memory and the input/output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input/output interface. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input/output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by the processor to implement a method of charging an electric vehicle bay. The display unit of the computer device is used for forming a visual picture, and can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be a key, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in fig. 6 is merely a block diagram of some of the structures associated with the present application and is not limiting of the computer device to which the present application may be applied, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In an embodiment, there is also provided a computer device comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the method embodiments described above when the computer program is executed.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored which, when executed by a processor, carries out the steps of the method embodiments described above.
In an embodiment, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the steps of the method embodiments described above.
It should be noted that, the user information (including, but not limited to, user equipment information, user personal information, etc.) and the data (including, but not limited to, data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party, and the collection, use, and processing of the related data are required to meet the related regulations.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in the various embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in the form of a variety of forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), and the like. The databases referred to in the various embodiments provided herein may include at least one of relational databases and non-relational databases. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic units, quantum computing-based data processing logic units, etc., without being limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application shall be subject to the appended claims.
Claims (10)
1. A method of charging an electric vehicle compartment, applied to a discharging vehicle, the method comprising:
simulating an off-board charger to perform at least one detection of a discharge loop of the discharge vehicle when a connection state between the discharge vehicle and a discharge connection device and a connection state between the discharge connection device and a charge vehicle are good; wherein the at least one detection includes output loop insulation detection, output voltage bleed detection, output voltage detection, and output current detection;
Obtaining various detection results of a discharge loop;
under the condition that all detection results meet the requirements, simulating an off-vehicle charger, and starting a handshake connection flow of the discharging vehicle and the charging vehicle according to a preset communication protocol of a vehicle pile;
acquiring an interaction message generated in the handshake connection flow;
acquiring a charging voltage range required by the charging vehicle according to the interaction message;
and according to the charging voltage range, charging the charging vehicle through the discharging loop.
2. The method according to claim 1, wherein the discharging vehicle is provided with a DC-DC voltage conversion module for converting a power battery voltage of the discharging vehicle into a discharging output voltage; the charging of the charging vehicle through the discharging loop according to the charging voltage range includes:
and under the condition that the maximum value of the charging demand voltage of the charging vehicle is larger than the minimum value of the discharging output voltage, the discharging vehicle charges the charging vehicle through a discharging loop according to the charging demand voltage of the charging vehicle.
3. The method of claim 2, wherein after the discharging vehicle charges the charging vehicle through a discharging circuit, further comprising:
acquiring the voltage change condition of a power battery of the charging vehicle;
and adjusting the voltage value of the discharge output voltage according to the voltage change condition.
4. The method according to claim 1, wherein the method further comprises:
acquiring a discharge state of the discharge vehicle, wherein the discharge state comprises the residual electric quantity of a power battery of the discharge vehicle, a fault condition and a charge message receiving condition;
and under the conditions that the residual electric quantity is lower than an electric quantity threshold value, a discharging fault exists or a message for stopping charging is received, the discharging loop is disconnected, and the charging of the charging vehicle is stopped.
5. The method of claim 2, wherein the charging the charge vehicle through the discharge loop in accordance with the charging voltage range is preceded by:
sending a charging request message to the charging vehicle, wherein the charging request message comprises the minimum value of the discharging output voltage and the maximum value of the discharging output voltage;
Disconnecting the handshake connection flow and displaying a discharge failure reason when the discharging vehicle does not receive a charge readiness message sent by the charging vehicle or the communication is overtime;
and executing the step of charging the charging vehicle through the discharging loop according to the charging voltage range under the condition that the charging readiness message is received or communication is not overtime.
6. The method according to claim 1, wherein the method further comprises:
judging whether a power battery of the discharging vehicle has an external charging function and has no fault or not under the condition that the connection state between the discharging vehicle and the discharging connection device and the connection state between the discharging connection device and the charging vehicle are good;
and under the condition that the power battery of the discharging vehicle has an external charging function and no fault exists, controlling the output current of the low-voltage auxiliary power supply of the discharging vehicle, and simulating the off-board charger to detect a discharging loop of the discharging vehicle.
7. A charging device for an electric vehicle room, the device comprising:
The detection module is used for carrying out at least one detection on a discharge loop of the discharge vehicle by simulating an off-vehicle charger under the condition that the connection state between the discharge vehicle and the discharge connection device and the connection state between the discharge connection device and the charge vehicle are good; wherein the at least one detection includes output loop insulation detection, output voltage bleed detection, output voltage detection, and output current detection;
the acquisition module is used for acquiring various detection results of the discharge loop;
the signal connection module is used for starting a handshake connection flow of the discharging vehicle and the charging vehicle according to a preset communication protocol of the vehicle pile by simulating the off-vehicle charger under the condition that all detection results meet the requirements;
the acquisition module is also used for acquiring the interactive message generated in the handshake connection flow;
the analysis module is used for acquiring a charging voltage range required by the charging vehicle according to the interaction message;
and the charging module is used for charging the charging vehicle through the discharging loop according to the charging voltage range.
8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311728005.1A CN117734498A (en) | 2023-12-14 | 2023-12-14 | Method and device for charging electric automobile room, computer equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311728005.1A CN117734498A (en) | 2023-12-14 | 2023-12-14 | Method and device for charging electric automobile room, computer equipment and storage medium |
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| CN117734498A true CN117734498A (en) | 2024-03-22 |
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| CN202311728005.1A Pending CN117734498A (en) | 2023-12-14 | 2023-12-14 | Method and device for charging electric automobile room, computer equipment and storage medium |
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| CN (1) | CN117734498A (en) |
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- 2023-12-14 CN CN202311728005.1A patent/CN117734498A/en active Pending
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