CN110979047A - Electric vehicle discharge control method, device and system - Google Patents
Electric vehicle discharge control method, device and system Download PDFInfo
- Publication number
- CN110979047A CN110979047A CN201911157195.XA CN201911157195A CN110979047A CN 110979047 A CN110979047 A CN 110979047A CN 201911157195 A CN201911157195 A CN 201911157195A CN 110979047 A CN110979047 A CN 110979047A
- Authority
- CN
- China
- Prior art keywords
- vehicle
- discharging
- management system
- battery management
- strategy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The embodiment of the application discloses a discharge control method, a device and a system for an electric vehicle. And when the resistance value of the connecting resistor is the discharging resistor, sending configuration information to the battery management system so that the battery management system configures the discharging strategy of the battery according to the configuration information. And when the controller acquires that the discharge strategy of the battery is vehicle-to-vehicle, sending a control guide signal to the second vehicle through the cable so that the second vehicle can carry out safety strategy matching according to the control guide signal. And after the safety strategy matching is completed, the controller controls the battery of the first vehicle to charge the second vehicle through the cable. That is, when there is no charging pile, the electric vehicle (first vehicle) with sufficient electric power charges the electric vehicle (second vehicle) with low electric power, and normal running of the second vehicle is ensured.
Description
Technical Field
The application relates to the technical field of automatic control, in particular to a discharge control method, device and system for an electric vehicle.
Background
With the adjustment and encouragement of national policies, electric vehicles are more and more popular, and the charging technology is continuously updated along with the development of the electric vehicle industry. The current charging mode is that a charging pile is used for charging an electric automobile, a household wall-mounted charger is used for charging the electric automobile, and a household charging pile is used for charging the electric automobile. However, when the electric vehicle is lack of electric power and no charging pile is arranged nearby, it is inconvenient to supplement electric energy for the electric vehicle.
Disclosure of Invention
In view of this, embodiments of the present application provide a method, an apparatus, and a system for controlling electric discharge of an electric vehicle, so as to achieve that the electric quantity of the vehicle is insufficient, provide electric energy for the electric vehicle, and improve cruising ability.
In order to solve the above problem, the technical solution provided by the embodiment of the present application is as follows:
in a first aspect of embodiments of the present application, there is provided an electric vehicle discharge control method, which is applied to a communication controller of a first vehicle, the first vehicle being a discharging vehicle, the method including:
acquiring the resistance value of the connecting resistor;
when the resistance value of the connecting resistor is a discharging resistance value, sending a configuration message to a battery management system so that the battery management system configures a discharging strategy according to the configuration message;
when the discharging strategy is vehicle-to-vehicle, sending a control guide signal to a second vehicle through a cable so that the second vehicle carries out safety strategy matching according to the control guide signal; the second vehicle is a charged vehicle;
and controlling the battery to charge the second vehicle through the cable.
In one possible implementation, when the discharge strategy is vehicle-to-vehicle, the sending a control guidance signal to a second vehicle through a cable includes:
and adjusting the duty ratio of the control pilot signal according to the self discharge current, and sending the adjusted control pilot signal to the second vehicle through a cable.
In one possible implementation, the second vehicle performing the security policy matching according to the control guidance signal includes:
and the second vehicle determines the discharge current of the first vehicle according to the duty ratio of the control guide signal, and performs safety strategy matching according to the discharge current.
In one possible implementation, the method further includes:
acquiring parameters of the control pilot signal; the parameter comprises one or more of amplitude, frequency and duty cycle;
when the parameter is larger than or smaller than a preset threshold range, sending a power-off signal to the battery management system so that the battery management system disconnects a discharge loop according to the power-off signal; or the like, or, alternatively,
when the discharging current of the first vehicle is detected to be smaller than a preset current threshold value, a power-off signal is sent to the battery management system, so that the battery management system can break a discharging loop according to the power-off signal.
In a possible implementation manner, the configuring, by the battery management system, a discharging policy according to the configuration information includes:
the battery management system configures the battery into a discharging mode according to the configuration information;
and the battery management system determines that the discharging strategy corresponding to the discharging mode is vehicle-to-vehicle according to the selection operation of the user.
In one possible implementation, the method further includes:
and when the discharge strategy is a car alignment line, outputting rated power through a cable.
In a second aspect of the embodiments of the present application, there is provided an electric vehicle discharge control apparatus, in a communication controller of a first vehicle, including:
a first obtaining unit configured to obtain a resistance value of the connection resistor;
the first sending unit is used for sending a configuration message to a battery management system when the resistance value of the connecting resistor is a discharging resistor, so that the battery management system configures a discharging strategy according to the configuration message;
the second sending unit is used for sending a control guide signal to a second vehicle through a cable when the discharging strategy is vehicle-to-vehicle so as to enable the second vehicle to carry out safety strategy matching according to the control guide signal; the second vehicle is a charged vehicle;
and the charging unit is used for controlling the battery to charge the second vehicle through the cable.
In a possible implementation manner, the second sending unit is specifically configured to adjust a duty ratio of the control pilot signal according to a discharge current of the second sending unit, and send the adjusted control pilot signal to the second vehicle through a cable.
In one possible implementation, the second vehicle performing the security policy matching according to the control guidance signal includes: and the second vehicle determines the discharge current of the first vehicle according to the duty ratio of the control guide signal, and performs safety strategy matching according to the discharge current.
In one possible implementation, the apparatus further includes:
a second acquisition unit, configured to acquire a parameter of the control pilot signal; the parameter comprises one or more of amplitude, frequency and duty cycle;
the third sending unit is used for sending a power-off signal to the battery management system when the parameter is larger than or smaller than a preset threshold range, so that the battery management system disconnects a discharging loop according to the power-off signal; or when the discharging current of the first vehicle is detected to be smaller than a preset current threshold value, sending a power-off signal to the battery management system, so that the battery management system disconnects a discharging loop according to the power-off signal.
In a possible implementation manner, the configuring, by the battery management system, a discharging policy according to the configuration information includes: the battery management system configures the battery into a discharging mode according to the configuration information;
and the battery management system determines that the discharging strategy corresponding to the discharging mode is vehicle-to-vehicle according to the selection operation of the user.
In one possible implementation, the apparatus further includes:
and the output unit is used for outputting rated power through a cable when the discharge strategy is a car-to-line strategy.
In a third aspect of the embodiments of the present application, there is provided an electric vehicle discharge control system, including: a communication controller, a battery management system and a battery;
the battery is used for supplying power to the electric automobile;
the battery management system is used for controlling the charging and discharging of the battery;
the communication controller is configured to perform the method of the first aspect.
In a fourth aspect of embodiments of the present application, a computer-readable storage medium is provided, where instructions are stored, and when the instructions are executed on a terminal device, the instructions cause the terminal device to execute the electric vehicle discharge control method according to the first aspect.
In a fifth aspect of embodiments of the present application, there is provided a computer device, including: the electric vehicle discharge control method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the computer program, the electric vehicle discharge control method is realized.
Therefore, the embodiment of the application has the following beneficial effects:
the electric vehicle charging gun comprises a charging gun body, a controller and a discharging gun body, wherein the charging gun body is provided with a charging gun interface, the controller is connected with the discharging gun body, the charging gun interface is connected with the discharging gun body, the controller is connected with the discharging gun body, and the discharging gun body is connected with the charging gun body. And when the resistance value of the connecting resistor is the discharging resistor, sending configuration information to the battery management system so that the battery management system configures the discharging strategy of the battery according to the configuration information. And when the controller acquires that the discharge strategy of the battery is vehicle-to-vehicle, sending a control guide signal to the second vehicle through the cable so that the second vehicle can carry out safety strategy matching according to the control guide signal. And after the safety strategy matching is completed, the controller controls the battery of the first vehicle to charge the second vehicle through the cable. Namely, by the method provided by the application, the electric vehicle can be charged by the electric vehicle, so that when no charging pile exists, the electric vehicle (first vehicle) with sufficient electric quantity is charged for the electric vehicle (second vehicle) with low electric quantity, and the second vehicle is ensured to normally run.
Drawings
Fig. 1 is a flowchart of a discharge control method for an electric vehicle according to an embodiment of the present application;
fig. 2 is an exemplary diagram of a vehicle-to-vehicle discharging scene provided in the embodiment of the present application;
fig. 3 is an exemplary diagram of a car-to-line discharging scene provided in an embodiment of the present application;
fig. 4 is a structural diagram of an electric vehicle discharge control device according to an embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the drawings are described in detail below.
In order to facilitate understanding of the technical solutions provided in the present application, the following description will be made on the background related to the present application.
The inventor finds that the conventional electric automobile charging method mainly utilizes a charging pile to charge, however, when the vehicle travels to a remote area or a nearby area without the charging pile, the vehicle is anchored when the electric quantity of the vehicle is low, and the trip of a user is affected. In addition, when the situations such as road emergency, automobile maintenance and the like need high-power electricity, and no available power supply is arranged nearby, the operation process is influenced.
Based on this, the embodiment of the application provides an electric vehicle discharge control method, which is applied to a first vehicle with a relatively large electric quantity, and after a user inserts a discharge gun, a controller determines whether the first vehicle is discharged or charged according to the resistance value of a connecting resistor. And when the resistance value of the connecting resistor is determined to be the discharging resistance value, sending a configuration message to the battery management system so that the battery management system configures a discharging strategy according to the configuration message, wherein the discharging strategy can comprise vehicle-to-vehicle and vehicle-to-line. And when the controller detects that the discharging strategy is vehicle-to-vehicle, sending a control guide signal to the second vehicle through the cable so that the second vehicle can carry out safety strategy matching according to the control guide signal. And after the safety strategy matching is completed, the controller charges a second vehicle through the cable, so that the vehicle-to-vehicle charging is realized. In addition, when the discharging strategy is a car alignment line, specific power is output through the cable to supply power for other equipment, so that the power utilization requirement is met.
For the convenience of understanding, the technical solutions provided in the present application will be described below with reference to the accompanying drawings.
Referring to fig. 1, which is a flowchart of an electric vehicle discharge control method provided in an embodiment of the present application, as shown in fig. 1, the method is applied to a communication controller of a first vehicle, and the method may include:
s101: and when the user inserts the discharging gun, acquiring the resistance value of the connecting resistor.
S102: and when the resistance value of the connecting resistor is the discharging resistance value, sending a configuration message to the battery management system so that the management system configures a discharging strategy according to the configuration message.
In this embodiment, the communication controller is an Electric Vehicle Communication Controller (EVCC), and when the EVCC monitors that a user inserts a gun, the resistance value of the connection resistor is obtained, so as to determine that the gun inserted by the user is a discharge gun according to the resistance value. Because the interface of vehicle both can insert the rifle that discharges, also can insert the rifle that charges, the EVCC confirms whether to charge or discharge through the resistance of connecting resistance. When the EVCC detects that the resistance value of the connecting resistor is a discharging resistance value, indicating that discharging is to be carried out, configuration information is sent to a Battery Management System (BMS) so that the BMS configures a discharging strategy according to the configuration information. That is, the battery management system is notified of the next control of the battery to discharge through the configuration information.
In specific implementation, when the BMS receives configuration information sent by the EVCC, the BMS configures the battery into a discharging mode; and then, determining the discharge strategy corresponding to the discharge mode as the vehicle-to-vehicle according to the selection of the user. The discharge strategy can be a vehicle-to-vehicle (V2V) or a vehicle-to-line (V2L). Specifically, when a user needs to charge a second vehicle by using a first vehicle, the corresponding discharging strategy can be selected through the central control screen, and the BMS configures the discharging strategy corresponding to the discharging mode into a vehicle-to-vehicle mode according to the selection of the user. When a user needs to use the first vehicle to supply power for other equipment, the corresponding discharging strategy can be selected, and the BMS determines the discharging strategy corresponding to the discharging mode as the vehicle-to-line according to the selection of the user.
S103: and when the discharging strategy is vehicle-to-vehicle, sending a control guide signal to the second vehicle through the cable so that the second vehicle carries out safety strategy matching according to the control guide signal.
And when the EVCC determines that the discharging strategy of the battery is vehicle-to-vehicle, sending a control guide signal to a second vehicle through a cable of the discharging gun so that the second vehicle can carry out safety strategy matching according to the control guide signal.
In a specific implementation, when the second vehicle needs to be charged, the user needs to insert the charging gun into the corresponding interface of the second vehicle so as to charge the second vehicle. The discharge gun inserted into the first vehicle and the charge gun inserted into the second vehicle are connected by a cable. After a second vehicle is inserted into the charging gun, the EVCC sends a control guide signal to the second vehicle through the cable, and the second vehicle matches a safety strategy after receiving the control guide signal so as to ensure that the second vehicle is charged safely.
Specifically, when the discharging pool strategy is vehicle-to-vehicle, the EVCC adjusts the duty ratio of the control pilot signal according to the discharging current of the first vehicle, and sends the adjusted control pilot signal to the second vehicle through the cable. And after the second vehicle receives the adjusted control guide signal, determining the discharge current of the first vehicle according to the duty ratio of the control quotation mark signal, and performing safety strategy matching according to the discharge current so as to ensure subsequent safe charging.
S104: the control battery charges the second vehicle through the cable.
And after the second vehicle completes the safety strategy matching, the controller controls the battery of the first vehicle to charge the second vehicle, so that the vehicle-to-vehicle charging is realized.
When it is required to be described, the amplitude value of the control guide signal changes many times from the time when the first vehicle inserts the discharging gun to the time when the first vehicle starts to charge the second vehicle. Specifically, when a first vehicle is inserted into a discharging gun and a second vehicle is not inserted into a charging gun, the amplitude value of the control guide signal output by the EVCC is 12V, when it is detected that the second vehicle is inserted into the charging gun, the amplitude value of the control guide signal output by the EVCC is 9V, when it is detected that the second vehicle completes the safety strategy matching, the amplitude value of the control guide signal output by the EVCC is 6V, and at this time, the first vehicle is controlled to charge the second vehicle.
In addition, when the discharging strategy is a car-to-line strategy, the EVCC directly controls the battery to output a specific power to supply power to other devices.
According to the embodiment, after the user inserts the discharging gun, the controller determines whether the first vehicle is discharged or charged according to the resistance value of the connecting resistor. And when the resistance value of the connecting resistor is determined to be the discharging resistance value, sending a configuration message to the battery management system so that the battery management system configures a discharging strategy according to the configuration message, wherein the discharging strategy can comprise vehicle-to-vehicle and vehicle-to-line. And when the controller detects that the discharging strategy is vehicle-to-vehicle, sending a control guide signal to the second vehicle through the cable so that the second vehicle can carry out safety strategy matching according to the control guide signal. And after the safety strategy matching is completed, the controller charges a second vehicle through the cable, so that the vehicle-to-vehicle charging is realized. In addition, when the discharging strategy is a car alignment line, specific power is output through the cable to supply power for other equipment, so that the power utilization requirement is met.
In a possible implementation manner, the EVCC may further ensure safety of the first vehicle and the second vehicle by determining an abnormal situation. Specifically, the parameters of the control pilot signal are obtained in real time, and the parameters may include one or more of amplitude, frequency and duty ratio; and when the parameter is larger than or smaller than the preset threshold range, sending a power-off signal to the battery management system, so that the battery management system disconnects the discharging loop according to the power-off signal, and the first vehicle stops discharging. Or when the EVCC detects that the discharge current of the first vehicle is smaller than the preset current threshold, sending a power-off signal to the battery management system, so that the battery management system disconnects the discharge loop according to the power-off signal, and the situation that the battery capacity of the first vehicle is low and the service life of the first vehicle battery is influenced is prevented.
For convenience of understanding, refer to a vehicle-to-vehicle discharging application scenario shown in fig. 2, where a discharging side corresponds to a first vehicle, and PP is a connection resistor, where a PP resistor of a vehicle on a charging side may refer to IEC6185-1 standard; fig. 3 is a car-to-line discharging application scenario. It should be noted that fig. 2 and 3 are only schematic diagrams, and the type and value of each period in the drawings are only used for reference.
Based on the method embodiment, the application also provides an electric vehicle discharge control device, which will be described below with reference to the accompanying drawings.
Referring to fig. 4, which is a structural diagram of an electric vehicle discharge control apparatus provided in an embodiment of the present application, as shown in fig. 4, the apparatus may include:
a first obtaining unit 401 configured to obtain a resistance value of the connection resistor;
a first sending unit 402, configured to send a configuration message to a battery management system when the resistance value of the connection resistor is a discharge resistor, so that the battery management system configures a discharge strategy according to the configuration information;
a second sending unit 403, configured to send a control guidance signal to a second vehicle through a cable when the discharging policy is vehicle-to-vehicle, so that the second vehicle performs security policy matching according to the control guidance signal; the second vehicle is a charged vehicle;
a charging unit 404 for controlling the battery to charge the second vehicle through the cable.
In a possible implementation manner, the second sending unit is specifically configured to adjust a duty ratio of the control pilot signal according to a discharge current of the second sending unit, and send the adjusted control pilot signal to the second vehicle through a cable.
In one possible implementation, the second vehicle performing the security policy matching according to the control guidance signal includes: and the second vehicle determines the discharge current of the first vehicle according to the duty ratio of the control guide signal, and performs safety strategy matching according to the discharge current.
In one possible implementation, the apparatus further includes:
a second acquisition unit, configured to acquire a parameter of the control pilot signal; the parameter comprises one or more of amplitude, frequency and duty cycle;
the third sending unit is used for sending a power-off signal to the battery management system when the parameter is larger than or smaller than a preset threshold range, so that the battery management system disconnects a discharging loop according to the power-off signal; or when the discharging current of the first vehicle is detected to be smaller than a preset current threshold value, sending a power-off signal to the battery management system, so that the battery management system disconnects a discharging loop according to the power-off signal.
In a possible implementation manner, the configuring, by the battery management system, a discharging policy according to the configuration information includes: the battery management system configures the battery into a discharging mode according to the configuration information;
and the battery management system determines that the discharging strategy corresponding to the discharging mode is vehicle-to-vehicle according to the selection operation of the user.
In one possible implementation, the apparatus further includes:
and the output unit is used for outputting rated power through a cable when the discharge strategy is a car-to-line strategy.
It should be noted that, implementation of each unit in this embodiment may refer to the above method embodiment, and this embodiment is not described herein again.
In addition, the embodiment of the application provides an electric vehicle discharge control system, which can comprise a communication controller, a battery management system and a battery;
the battery is used for supplying power to the electric automobile;
the battery management system is used for controlling the charging and discharging of the battery;
and the communication controller is used for executing the electric vehicle discharging control method.
The application also provides a computer readable storage medium, wherein the computer readable storage medium stores instructions, and when the instructions are run on the terminal device, the instructions cause the terminal device to execute the electric vehicle discharge control method.
The present application further provides a computer device, comprising: the electric vehicle discharge control method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the computer program, the electric vehicle discharge control method is realized.
Based on the above embodiment, when the user inserts the discharging gun, the controller determines whether the first vehicle is discharged or charged according to the resistance value of the connection resistor. And when the resistance value of the connecting resistor is determined to be the discharging resistance value, sending a configuration message to the battery management system so that the battery management system configures a discharging strategy according to the configuration message, wherein the discharging strategy can comprise vehicle-to-vehicle and vehicle-to-line. And when the controller detects that the discharging strategy is vehicle-to-vehicle, sending a control guide signal to the second vehicle through the cable so that the second vehicle can carry out safety strategy matching according to the control guide signal. And after the safety strategy matching is completed, the communication controller controls the battery to charge a second vehicle through the cable, so that the vehicle-to-vehicle charging is realized. In addition, when the discharging strategy is a car alignment line, specific power is output through the cable to supply power for other equipment, so that the power utilization requirement is met.
It should be noted that, in the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. For the system or the device disclosed by the embodiment, the description is simple because the system or the device corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
It should be understood that in the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single item(s) or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An electric vehicle discharge control method applied to a communication controller of a first vehicle, the first vehicle being a discharge vehicle, the method comprising:
acquiring the resistance value of the connecting resistor;
when the resistance value of the connecting resistor is a discharging resistance value, sending a configuration message to a battery management system so that the battery management system configures a discharging strategy according to the configuration message;
when the discharging strategy is vehicle-to-vehicle, sending a control guide signal to a second vehicle through a cable so that the second vehicle carries out safety strategy matching according to the control guide signal; the second vehicle is a charged vehicle;
and controlling the battery to charge the second vehicle through the cable.
2. The method of claim 1, wherein when the discharge strategy is vehicle-to-vehicle, the sending a control guidance signal to a second vehicle over a cable comprises:
and adjusting the duty ratio of the control pilot signal according to the self discharge current, and sending the adjusted control pilot signal to the second vehicle through a cable.
3. The method of claim 2, wherein the second vehicle performing a security policy match based on the control guidance signal comprises:
and the second vehicle determines the discharge current of the first vehicle according to the duty ratio of the control guide signal, and performs safety strategy matching according to the discharge current.
4. The method of claim 1, further comprising:
acquiring parameters of the control pilot signal; the parameter comprises one or more of amplitude, frequency and duty cycle;
when the parameter is larger than or smaller than a preset threshold range, sending a power-off signal to the battery management system so that the battery management system disconnects a discharge loop according to the power-off signal; or the like, or, alternatively,
when the discharging current of the first vehicle is detected to be smaller than a preset current threshold value, a power-off signal is sent to the battery management system, so that the battery management system can break a discharging loop according to the power-off signal.
5. The method of claim 1, wherein the battery management system configures a discharge strategy according to the configuration information, comprising:
the battery management system configures the battery into a discharging mode according to the configuration information;
and the battery management system determines that the discharging strategy corresponding to the discharging mode is vehicle-to-vehicle according to the selection operation of the user.
6. The method of claim 5, further comprising:
and when the discharge strategy is a car alignment line, outputting rated power through a cable.
7. An electric vehicle discharge control apparatus, located in a communication controller of the first vehicle, comprising:
a first obtaining unit configured to obtain a resistance value of the connection resistor;
the first sending unit is used for sending a configuration message to a battery management system when the resistance value of the connecting resistor is a discharging resistor, so that the battery management system configures a discharging strategy according to the configuration message;
the second sending unit is used for sending a control guide signal to a second vehicle through a cable when the discharging strategy is vehicle-to-vehicle so as to enable the second vehicle to carry out safety strategy matching according to the control guide signal; the second vehicle is a charged vehicle;
and the charging unit is used for controlling the battery to charge the second vehicle through the cable.
8. An electric vehicle discharge control system, the system comprising: a communication controller, a battery management system and a battery;
the battery is used for supplying power to the electric automobile;
the battery management system is used for controlling the charging and discharging of the battery;
the communication controller for executing the electric vehicle discharge control method of any one of claims 1 to 6.
9. A computer-readable storage medium having stored therein instructions that, when run on a terminal device, cause the terminal device to execute the electric vehicle discharge control method of any one of claims 1-6.
10. A computer device, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, when executing the computer program, implementing the electric vehicle discharge control method of any of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911157195.XA CN110979047A (en) | 2019-11-22 | 2019-11-22 | Electric vehicle discharge control method, device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911157195.XA CN110979047A (en) | 2019-11-22 | 2019-11-22 | Electric vehicle discharge control method, device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110979047A true CN110979047A (en) | 2020-04-10 |
Family
ID=70086029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911157195.XA Pending CN110979047A (en) | 2019-11-22 | 2019-11-22 | Electric vehicle discharge control method, device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110979047A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985671A (en) * | 2017-05-31 | 2017-07-28 | 北京新能源汽车股份有限公司 | A kind of vehicle-mounted bidirectional charger, vehicle-mounted bidirectional power supply method and device |
| CN107415742A (en) * | 2017-08-04 | 2017-12-01 | 北京新能源汽车股份有限公司 | A kind of mutual charging method of vehicle and device, controller, automobile |
| US20180159351A1 (en) * | 2016-12-05 | 2018-06-07 | Phihong Technology Co., Ltd. | Bidirectional Vehicle-Mounted Charge and Discharge System and Its Methods |
| CN108258761A (en) * | 2018-01-26 | 2018-07-06 | 北京新能源汽车股份有限公司 | A kind of charge/discharge control method and electric vehicle |
| CN108621813A (en) * | 2017-03-24 | 2018-10-09 | 华盛新能源科技（深圳）有限公司 | A kind of guard method based on V2V charge-discharge systems |
-
2019
- 2019-11-22 CN CN201911157195.XA patent/CN110979047A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180159351A1 (en) * | 2016-12-05 | 2018-06-07 | Phihong Technology Co., Ltd. | Bidirectional Vehicle-Mounted Charge and Discharge System and Its Methods |
| CN108621813A (en) * | 2017-03-24 | 2018-10-09 | 华盛新能源科技（深圳）有限公司 | A kind of guard method based on V2V charge-discharge systems |
| CN106985671A (en) * | 2017-05-31 | 2017-07-28 | 北京新能源汽车股份有限公司 | A kind of vehicle-mounted bidirectional charger, vehicle-mounted bidirectional power supply method and device |
| CN107415742A (en) * | 2017-08-04 | 2017-12-01 | 北京新能源汽车股份有限公司 | A kind of mutual charging method of vehicle and device, controller, automobile |
| CN108258761A (en) * | 2018-01-26 | 2018-07-06 | 北京新能源汽车股份有限公司 | A kind of charge/discharge control method and electric vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3015308B1 (en) | Vehicular charge/discharge system | |
| KR101873666B1 (en) | Power-transfer control device | |
| US20100301810A1 (en) | Systems and methods for electric vehicle charging | |
| CN107791872B (en) | Vehicle-mounted charger, control method and control device thereof and vehicle | |
| CN109398155B (en) | Battery pack charging thermal management control method, related device and system | |
| CN112297950A (en) | Charging and discharging human-computer interaction control method and device, vehicle and storage medium | |
| EP3018486A1 (en) | Vehicle storage battery management device, vehicle power unit, and vehicle storage battery management method | |
| JP2010288345A (en) | Charge control device | |
| EP3709478A1 (en) | Charge control device using photovoltaic power generation | |
| JP2012244663A (en) | Charging system for electric automobile | |
| CN112311071B (en) | Method and device for protecting battery pack of hybrid vehicle | |
| JPWO2011145192A1 (en) | Charger control device, charging device | |
| CN107487212B (en) | Charging method and charging device for electric automobile and electric automobile | |
| CN113043914A (en) | Battery heating method and device and electric automobile | |
| JP2012075268A (en) | System for charging storage battery | |
| CN107040015B (en) | A kind of monitoring method and system of energy storage device | |
| CN110979047A (en) | Electric vehicle discharge control method, device and system | |
| CN114750628A (en) | Vehicle charging and discharging method, battery management system and charging and discharging system | |
| CN116707082A (en) | Lithium battery discharge control method, system, terminal and storage medium | |
| CN116455010A (en) | Intelligent charging method and system for charging pile, electronic equipment and storage medium | |
| CN110518671B (en) | Charger and discharging method thereof | |
| WO2020192309A1 (en) | Vehicle battery power control method and device, and vehicle | |
| CN113799650A (en) | Battery data processing method and device | |
| CN111987769A (en) | Storage battery charging method, power automobile and readable storage medium | |
| JP6680068B2 (en) | Charge / discharge control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200410 |
|
| RJ01 | Rejection of invention patent application after publication |