CN111555377A - Electric vehicle discharging system, discharging control method and electric vehicle - Google Patents
Electric vehicle discharging system, discharging control method and electric vehicle Download PDFInfo
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- CN111555377A CN111555377A CN202010274884.5A CN202010274884A CN111555377A CN 111555377 A CN111555377 A CN 111555377A CN 202010274884 A CN202010274884 A CN 202010274884A CN 111555377 A CN111555377 A CN 111555377A
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- 238000007599 discharging Methods 0.000 title claims abstract description 257
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000012790 confirmation Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 9
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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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
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses an electric vehicle discharging system, a discharging control method and an electric vehicle, wherein the electric vehicle discharging system comprises a charging and discharging module and a discharging device, the input end of the discharging device is connected to the charging and discharging module, and the output end of the discharging device is connected to a load or a vehicle to be charged; the charging and discharging module comprises a discharging control module, and the discharging control module is connected with a control guide signal output end of the discharging device and used for receiving a control guide signal sent by the discharging device and controlling the charging and discharging module to discharge outwards according to the control guide signal. According to the electric vehicle discharging system, the discharging control method and the electric vehicle, the discharging module is additionally arranged in the charging system of the electric vehicle, the discharging control module is arranged in the discharging module, the discharging control module and the discharging device are matched, a controllable discharging strategy for preventing misdischarge is formed, and meanwhile other unauthorized discharging guns can be prevented from being misused.
Description
Technical Field
The invention relates to the field of electric vehicle charging and discharging, in particular to an electric vehicle discharging system, a discharging control method and an electric vehicle.
Background
With the spread of new energy vehicles, in-vehicle charging systems have been provided with a function of converting external energy to charge a vehicle power battery, and a function of converting surplus energy of the power battery of an electric vehicle into ac power to discharge the ac power to the outside of the vehicle, thereby charging other vehicles or supplying the load such as home appliances to the vehicle.
However, the external discharge condition of the electric Vehicle is complicated and there are different modes of discharge, and since the Connection Confirmation (CC) signal resistance range defined in the "electric Vehicle conduction charging system" (national standard GB/T18487, hereinafter referred to as national standard) is limited, only the charging resistance range is defined in the national standard, and the discharging resistance is not defined, each manufacturer defines the discharging resistance without colliding with the charging resistance, and the existing automobile discharging system cannot completely distinguish the different discharging capabilities (8A, 10A, 16A, 32A, 63A) and the different discharging modes (Vehicle-to-Vehicle mode (V2V, vehiclo Vehicle), Vehicle-to-Load mode (V2L, Vehicle to Load)).
The current automobile discharge system on the market has the following problems:
1) the discharging mode and the discharging capacity are completely distinguished through the CC resistance range, the discharging combination is few, and the functions are not rich enough;
2) since the ranges of the CC resistors used for discharging defined by various manufacturers are inconsistent and other control strategies are not available, misuse is easily caused, equipment is damaged, and personal safety is influenced;
3) the discharging gun which is plugged with the discharging gun with the CC resistance defined in the V2L discharging range discharges, so that the V2L discharging gun is charged all the time under the condition that the discharging gun is not used to harm personal safety, the V2V discharging gun is mistaken as a V2L discharging gun, a gun head at one charging end is charged in advance (the V2V discharging gun is plugged in, the other end is not plugged in a charging port of another vehicle to be charged at the moment, if the V2L gun is mistaken by the discharging vehicle, electric energy is directly output, the gun head is charged, and personal safety is possibly damaged), and the V2L discharging gun is electrically plugged, so that the national standard is not met, and the vehicle is also possibly damaged.
Therefore, the prior art is in need of further improvement.
Disclosure of Invention
The technical problem that this application will be solved is to overcome prior art not enough to provide an electric automobile discharge system, discharge control method and electric automobile, realized the control of discharging, can avoid the discharge rifle to be misused and discharge rifle misdischarge.
In order to solve the technical problem, in a first aspect, the application discloses an electric vehicle discharging system, which includes a charging and discharging module and a discharging device, wherein an input end of the discharging device is connected to the charging and discharging module, and an output end of the discharging device is connected to a load or a vehicle to be charged;
the charging and discharging module comprises a discharging control module, and the discharging control module is connected with a control guide signal output end of the discharging device and used for receiving a control guide signal sent by the discharging device and controlling the charging and discharging module to discharge outwards according to the control guide signal.
Optionally, the charge-discharge module further includes a connection confirmation signal detection module, configured to receive a connection confirmation signal sent by the discharge device, and determine the type of the discharge device according to a resistance value carried in the connection confirmation signal.
Optionally, the electric vehicle discharging system of the present application further includes a discharging mode selection module for a user to select a discharging mode.
Optionally, the discharge mode includes a vehicle-to-vehicle mode and a vehicle-to-load mode;
the discharging device corresponding to the vehicle-to-vehicle mode comprises a vehicle-to-vehicle discharging gun;
the discharging device corresponding to the vehicle-to-load mode comprises a vehicle-to-load discharging gun.
Optionally, a vehicle-to-load discharging gun switch and a discharging socket are arranged on the vehicle-to-load discharging gun, and the discharging socket is used for connecting the output end of the vehicle-to-load discharging gun to a load.
In a second aspect, the present application discloses an electric vehicle comprising an electric vehicle discharge system as described above.
In a third aspect, the present application discloses an electric vehicle discharge control method, including any one of:
if the type of the connected discharging device is matched with the discharging mode selected by the user, controlling the charging and discharging module to discharge outwards according to the control guide signal of the discharging device;
or;
if the type of the connected discharging device is not matched with the discharging mode selected by the user and within the preset time, the discharging device is connected to a load or a vehicle to be charged, and the charging and discharging module is controlled to discharge outwards according to the control guide signal of the discharging device.
Optionally, if the type of the connected discharging device is not matched with the discharging mode selected by the user and the discharging device is connected to the load or the vehicle to be charged within a preset time, controlling the charging and discharging module to discharge outwards according to a control guide signal of the discharging device, including:
if the connected discharging device is a vehicle-to-vehicle discharging gun, the discharging mode selected by the user is a vehicle-to-load mode, and the vehicle-to-vehicle discharging gun is connected to the vehicle to be charged within the preset time, controlling the charging and discharging module to discharge outwards according to the control guide signal of the vehicle-to-vehicle discharging gun, and prompting the user that the discharging mode is selected wrongly.
Optionally, if the type of the connected discharging device is not matched with the discharging mode selected by the user and the discharging device is connected to the load or the vehicle to be charged within a preset time, controlling the charging and discharging module to discharge outwards according to a control guide signal of the discharging device, including:
if the connected discharging device is a vehicle-to-load discharging gun, the discharging mode selected by the user is a vehicle-to-vehicle mode, and the vehicle-to-load discharging gun is connected to the load within the preset time, controlling the charging and discharging module to discharge outwards according to the control guide signal of the vehicle-to-load discharging gun, and prompting the user that the discharging mode is selected wrongly.
Optionally, the electric vehicle discharge control method of the present application further includes:
if the type of the connected discharging device is not matched with the discharging mode selected by the user and the discharging device is not connected to the load or the vehicle to be charged within the preset time, controlling the discharging system of the electric vehicle to enter a dormant state.
By adopting the technical scheme, the electric vehicle discharge system, the discharge control method and the electric vehicle have the following beneficial effects:
1) by adding the discharging module in the charging system of the electric automobile and arranging the discharging control module in the discharging module, a controllable discharging strategy for preventing the erroneous discharging is formed through the matching of the discharging control module and the discharging device, and other unauthorized discharging guns can be prevented from being misused;
2) by adding the discharge mode selection module, the discharge modes can be distinguished through user selection;
3) by adding the vehicle-to-load discharging gun switch, accidental discharging can be prevented.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of an alternative electric vehicle discharge system according to an embodiment of the present disclosure;
FIG. 2 is a flowchart illustrating an alternative electric vehicle discharge control method according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of an alternative electric vehicle discharge system in the V2V mode according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an alternative electric vehicle discharge system in the V2L mode according to an embodiment of the present application;
FIG. 5 is a schematic diagram of an alternative electric vehicle discharge system in the V2L mode according to an embodiment of the present application;
fig. 6 is a schematic diagram illustrating an application of an optional electric vehicle discharge system in a V2L mode according to an embodiment of the present application
FIG. 7 is a flowchart illustrating an alternative electric vehicle discharge control method according to an embodiment of the present disclosure;
fig. 8 is a flowchart of an alternative electric vehicle discharge control method according to an embodiment of the present application.
The following is a supplementary description of the drawings:
1-a charge-discharge module; 101-a discharge control module; 102-connection confirmation signal detection module; 2-a discharge device; and 3-interface of the discharge vehicle.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
Referring to fig. 1, an embodiment of the present application provides an electric vehicle discharging system, which includes a charging/discharging module 1 and a discharging device 2, an input end of the discharging device 2 is connected to the charging/discharging module through a discharging interface 3, and an output end of the discharging device 2 is connected to a load or a vehicle to be charged;
the charge-discharge module 1 includes a discharge Control module 101, and the discharge Control module 101 is connected to a Control Pilot (CP) signal output end of the discharge device 2, and is configured to receive a Control Pilot signal sent by the discharge device 2 and Control the charge-discharge module 1 to discharge outwards according to the Control Pilot signal.
Specifically, the discharge control module 101 in fig. 1 includes a control pilot signal generation module, a control pilot signal return detection module and a first switch S1, where the control pilot signal generation module is configured to send a first control pilot signal with a first amplitude, the first control pilot signal is divided by a first resistor R1 and another resistor (a resistor in the charging vehicle or the load, not shown in fig. 1) to obtain a second control pilot signal with a second amplitude, the control pilot signal return detection module is configured to detect the second control pilot signal, and the discharge control module 101 controls the charge and discharge module 1 to discharge outwards according to the second control pilot signal.
As an optional implementation, the charging and discharging module 1 further includes a connection confirmation signal (CC) detection module, configured to receive the connection confirmation signal sent by the discharging device 2, and determine the type of the discharging device according to a resistance value carried in the connection confirmation signal.
It should be noted that fig. 1 further includes a charging control module composed of a first diode D1, a second switch S2, a second resistor R2, a third resistor R4, and a control pilot signal detection module, where the connection confirmation signal detection module may also be used to distinguish a charging gun from a discharging gun, and the charging principle is not described herein, and in a normal case, the first switch S1 and the charging control module are closed, so that a vehicle may be inserted into the charging gun for charging at any time, when the connection confirmation signal detection module detects that the discharging gun is inserted, the first switch S1 and the discharging control module 101 are closed, and the discharging control module 101 controls the charging and discharging module 1 to discharge outwards according to the control pilot signal.
In the embodiment of the present application, the interface of the discharging vehicle, the charging gun, the discharging gun and the charging vehicle are respectively provided with L1 (Live wire 1, Live line1), L2 (Live wire 2, Live line2), L3 (Live wire 3, Live line3), N (zero line, Null line), PE (Protecting earth), CC and CP end, where PE is a protection grounding end, CC is a connection confirmation signal end, and CP is a control guide signal end.
As an optional implementation manner, the electric vehicle discharging system according to the embodiment of the application further includes a discharging mode selection module, which is used for a user to select a discharging mode.
As an alternative embodiment, the discharging mode includes a Vehicle-to-Vehicle (V2V, Vehicle-to-Vehicle) mode and a Vehicle-to-Load (V2L, Vehicle-to-Load) mode;
the discharging device 2 corresponding to the vehicle-to-vehicle mode comprises a vehicle-to-vehicle discharging gun;
the discharging device 2 corresponding to the vehicle-to-load mode includes a vehicle-to-load discharging gun.
As an optional implementation manner, a vehicle-to-load discharging gun switch and a discharging socket are arranged on the vehicle-to-load discharging gun, and the discharging socket is used for connecting the output end of the vehicle-to-load discharging gun to the load.
The embodiment of the application also provides an electric automobile, which comprises all the implementation modes of the electric automobile discharging system.
An embodiment of the present application further provides a discharge control method, as shown in fig. 2, where the control method includes:
s1: judging whether the type of the connected discharging device is matched with the discharging mode selected by the user, and if so, turning to the step S2; otherwise, go to step S3;
s2: controlling the charge-discharge module to discharge outwards according to the control guide signal of the discharge device;
s3: judging whether the discharging device is connected to a load or a vehicle to be charged within a preset time, if so, turning to step S4;
s4: and controlling the charge-discharge module to discharge outwards according to the control guide signal of the discharge device.
In an alternative implementation manner, the mismatch in step S1 in the embodiment of the present application has two cases:
in one case, the connected discharging device is a vehicle-to-vehicle discharging gun, the discharging mode selected by the user is a vehicle-to-load mode, and the vehicle-to-vehicle discharging gun is connected to the vehicle to be charged within a preset time, and then the charging and discharging module is controlled to discharge outwards according to the control and guide signal of the vehicle-to-vehicle discharging gun, and the user is prompted to 'select the discharging mode in error'.
In another case, the connected discharge device is a vehicle-to-load discharge gun, the discharge mode selected by the user is a vehicle-to-vehicle mode, and the vehicle-to-load discharge gun is connected to the load within a preset time, and then the charge-discharge module is controlled to discharge outwards according to the control guide signal of the vehicle-to-load discharge gun, and the user is prompted that the discharge mode is selected incorrectly.
In both cases described above, although there is a state where the type of the connected discharging device does not match the discharging mode selected by the user, the technical solution in which the discharging device is connected to the load or the vehicle to be charged within the preset time is described, however, in a possible case, there is also a state where the type of the connected discharging device does not match the discharging mode selected by the user and the discharging device is not connected to the load or the vehicle to be charged within the preset time, and the electric vehicle discharging system is controlled to enter the sleep state.
Fig. 3 is a schematic diagram illustrating an application of an optional electric vehicle discharge system in the V2V mode according to an embodiment of the present application; after the V2V discharge gun is inserted, the switch S1 is closed with a discharge control module of the discharge vehicle, the guide signal generation module is controlled to send Pulse Width Modulation (PWM) of 1Khz, the frequency, the duty ratio and the amplitude of the PWM are checked back by controlling the guide signal check circuit, the frequency and the duty ratio checked back must be within 10% of the sent error, the amplitude must be 9V +/-1.5V or 6V +/-1.5V to be considered as normal, otherwise, the abnormal condition is judged, and the charge and discharge are not allowed. In a specific implementation, the PWM amplitude sent by the control guidance signal generating circuit is nominally 12V, the PWM nominal value detected back after voltage division is performed by the resistor R1 of the discharging vehicle and the resistor R3 of the charging vehicle is 9V, when S2 of the charging vehicle is closed, the resistor R1 of the discharging vehicle and the resistance value of the charging vehicle after the resistor R3 and the resistor R2 are connected in parallel are subjected to voltage division, and the PWM nominal value detected back is 6V, therefore, when the PWM amplitude detected back jumps from 9V to 6V, the charging vehicle is considered to notify the discharging vehicle (serving as a charging pile) to discharge, and at this time, the discharging vehicle can output energy to charge a vehicle needing to be charged.
Fig. 4 is a schematic diagram illustrating an application of an optional electric vehicle discharge system in the V2L mode according to an embodiment of the present application; the discharge socket is arranged on the V2L discharge gun, a three-phase socket is taken as an example, when a switch S1 of the discharge vehicle is closed with a discharge control signal module, a resistor R1 of the discharge vehicle is divided by a resistance value after the resistor R3 of the V2L discharge gun is connected with a resistor R2 in parallel, a PWM nominal value detected back is 6V, and the V2L discharge gun can discharge outwards, so that under the cooperation of the discharge control signal module and the connection confirmation signal module, the situation that other charge guns are mistaken as the V2L discharge gun and the situation that other unauthorized V2L guns are misused can be effectively prevented.
Fig. 5 is a schematic diagram illustrating an application of an optional electric vehicle discharge system in the V2L mode according to an embodiment of the present application; the V2L discharge gun in FIG. 4 is added with a switch S3, and a switch S3-L1, a switch S3-L2 and a switch S3-L3 which are connected with the switch S3 in parallel, wherein, the switches S3-L1, S3-L2 and S3-L3 are respectively arranged in three jacks of a three-phase socket L1/L2/L3, when a power plug of a load is inserted, the switch is opened due to the downward pressure of the contact pins, and when the power plug is pulled out, the switches are bounced to be opened, when the switch S1 of the discharging car and the discharging control signal module are closed, the switch S3 of the V2L discharging gun is closed, the resistance R1 of the discharging car and the resistance value of the V2L discharging gun after the resistance R3 and the resistance R2 are connected in parallel are subjected to voltage division, the PWM nominal value detected back is 6V, and the V2L discharging gun can discharge outwards, switches S3-L1, S3-L2, and S3-L3 may be omitted.
Fig. 6 is a schematic diagram illustrating an application of an optional electric vehicle discharge system in the V2L mode according to an embodiment of the present application; the switches S3-L1, S3-L2 and S3-L3 in fig. 5 are connected in series with the switch S3, when the switch S1 and the discharge control signal module of the discharge car are closed, the switch S3 of the discharge gun of the V2L is closed, and the power plug of the load is inserted into the three-phase socket, so that the switches S3-L1, S3-L2 and S3-L3 are closed, the resistor R1 of the discharge car and the resistance value of the resistor R3 of the discharge gun of the V2L connected in parallel with the resistor R2 are divided, the PWM nominal value detected back is 6V, and the discharge gun of the V2L can discharge outwards.
In view of fig. 4/5/6, the arrangement of fig. 4 is the simplest and the lowest cost, but has been effective in preventing other charging guns from being mistaken for V2L discharge guns and for other unauthorized V2L guns; FIG. 5 adds to the user's manual actuation of the switch, further adding to the safety that the user is consciously required to open the switch on the V2L discharge gun to discharge; fig. 6 not only requires the user to actively turn on the switch on the basis of fig. 4, but also further increases the condition that a useful appliance is inserted to discharge, and further increases the safety. The safety of fig. 6 to 5 to 4 is sequentially weakened, but the usability is sequentially increased, and the user can select the discharge gun according to the scene which is most frequently used by the user.
The range of the resistance Rc for identifying the lance tip is shown in table 1, and the resistance definition and the resistance value used in fig. 1 and fig. 3 to 6 are defined in the national standard except for the resistance Rc;
table 1:
fig. 7 is a flowchart illustrating an alternative electric vehicle discharge control method according to an embodiment of the present disclosure; when a user inserts the gun head first and then selects a discharging mode, if the inserted gun head is a charging gun, entering a charging cycle; if the inserted gun head is a discharge gun, judging whether the type of the inserted discharge gun is matched with a discharge mode selected by a user; if the discharge mode is matched with the discharging mode, discharging according to the discharging mode selected by the user until the discharging is finished, and enabling the discharging system to enter a dormant state according to a whole vehicle strategy; and if not, discharging according to the discharging mode selected by the user and prompting the user that the discharging mode is selected wrongly, and after discharging, enabling the discharging system to enter a dormant state according to the whole vehicle strategy. The matching result of the type of the discharging gun and the discharging mode selected by the user specifically comprises the following conditions:
(1) inserting a V2V discharge gun and selecting a V2V mode, wherein a discharge control module of a discharge vehicle continuously sends a PWM signal and waits for the connection of a charging vehicle, if the back-detection PWM signal jumps from 9V to 6V, the charging vehicle is connected, the discharge control module of the discharge vehicle continuously sends the PWM signal, the discharge vehicle discharges outwards in a V2V mode, and if the back-detection PWM signal jumps from 6V to 9V in the discharge process, a discharge system enters a sleep state according to a whole vehicle strategy; if the connection of the charging vehicle is overtime (waiting for 3 minutes), the discharging system enters a dormant state according to a whole vehicle strategy; if the back-check PWM signal is continuously 9V and the waiting is not overtime, continuing to wait for the charging vehicle to be connected.
(2) Inserting a V2V discharge gun and selecting a V2L mode, wherein a discharge control module of the discharge car continuously sends a PWM signal and waits for the connection of a load, if the back-detected PWM signal jumps from 9V to 6V, the connection of the load is indicated, the discharge control module of the discharge car continuously sends the PWM signal, the discharge car discharges outwards in a V2L mode and prompts a user that the discharge mode is selected wrongly, and if the back-detected PWM signal jumps from 6V to 9V in the discharge process, the discharge system enters a sleep state according to a whole car strategy; if the load connection is overtime (waiting for 3 minutes), the discharging system enters a dormant state according to the whole vehicle strategy; if the back-check PWM signal continues to be 9V and the wait is not timed out, the load continues to wait for connection.
(3) Inserting a V2L discharge gun and selecting a V2L mode, wherein a discharge control module of the discharge car continuously sends a PWM signal and waits for the connection of a load, if the back-detected PWM signal jumps from 9V to 6V, the connection of the load is indicated, the discharge control module of the discharge car continuously sends the PWM signal, the discharge car discharges outwards in a V2L mode, and if the back-detected PWM signal jumps from 6V to 9V in the discharge process, a discharge system enters a sleep state according to a whole car strategy; if the load connection is overtime (waiting for 3 minutes), the discharging system enters a dormant state according to the whole vehicle strategy; if the back-check PWM signal continues to be 9V and the wait is not timed out, the load continues to wait for connection.
(4) Inserting a V2L discharge gun and selecting a V2V mode, wherein a discharge control module of a discharge vehicle continuously sends a PWM signal and waits for the connection of a charging vehicle, if the back-detected PWM signal jumps from 9V to 6V, the charging vehicle is connected, the discharge control module of the discharge vehicle continuously sends the PWM signal, the discharge vehicle discharges outwards in a V2V mode and prompts a user that the discharge mode is selected wrongly, and if the back-detected PWM signal jumps from 6V to 9V in the discharge process, a discharge system enters a sleep state according to a whole vehicle strategy; if the connection of the charging vehicle is overtime (waiting for 3 minutes), the discharging system enters a dormant state according to a whole vehicle strategy; if the back-check PWM signal is continuously 9V and the waiting is not overtime, continuing to wait for the charging vehicle to be connected.
Fig. 8 is a flowchart illustrating an alternative electric vehicle discharge control method according to an embodiment of the present disclosure; when a user selects a discharging mode and then inserts the gun head, if the gun head is a charging gun, the discharging system enters a dormant state according to a whole vehicle strategy; if the inserted gun head is a discharge gun, judging whether the type of the inserted discharge gun is matched with a discharge mode selected by a user; if the discharge mode is matched with the discharging mode, discharging according to the discharging mode selected by the user until the discharging is finished, and enabling the discharging system to enter a dormant state according to a whole vehicle strategy; and if not, discharging according to the discharging mode selected by the user and prompting the user that the discharging mode is selected wrongly, and after discharging, enabling the discharging system to enter a dormant state according to the whole vehicle strategy. The result of matching the type of the discharging gun with the discharging mode selected by the user specifically includes four cases, which can be referred to specifically for the four cases, and is not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The electric vehicle discharging system is characterized by comprising a charging and discharging module and a discharging device, wherein the input end of the discharging device is connected to the charging and discharging module, and the output end of the discharging device is connected to a load or a vehicle to be charged;
the charging and discharging module comprises a discharging control module, and the discharging control module is connected with a control guide signal output end of the discharging device and used for receiving a control guide signal sent by the discharging device and controlling the charging and discharging module to discharge outwards according to the control guide signal.
2. The electric vehicle discharging system of claim 1, wherein the charging and discharging module further comprises a connection confirmation signal detection module, configured to receive a connection confirmation signal sent by the discharging device, and determine the type of the discharging device according to a resistance value carried in the connection confirmation signal.
3. The electric vehicle discharge system of claim 1, further comprising a discharge mode selection module for a user to select a discharge mode.
4. The electric vehicle discharge system of claim 3, wherein the discharge mode comprises a vehicle-to-vehicle mode and a vehicle-to-load mode;
the discharging device corresponding to the vehicle-to-vehicle mode comprises a vehicle-to-vehicle discharging gun;
the discharging device corresponding to the vehicle-to-load mode comprises a vehicle-to-load discharging gun.
5. The electric vehicle discharge system of claim 4, wherein the vehicle-to-load discharge gun is provided with a vehicle-to-load discharge gun switch and a discharge socket, and the discharge socket is used for connecting an output end of the vehicle-to-load discharge gun to a load.
6. An electric vehicle comprising the electric vehicle discharge system according to any one of claims 1 to 5.
7. An electric vehicle discharge control method is characterized by comprising any one of the following steps:
if the type of the connected discharging device is matched with the discharging mode selected by the user, controlling the charging and discharging module to discharge outwards according to the control guide signal of the discharging device;
or;
if the type of the connected discharging device is not matched with the discharging mode selected by the user and within the preset time, the discharging device is connected to a load or a vehicle to be charged, and the charging and discharging module is controlled to discharge outwards according to the control guide signal of the discharging device.
8. The electric vehicle discharge control method according to claim 7, wherein if the type of the connected discharge device does not match the discharge mode selected by the user and the discharge device is connected to the load or the vehicle to be charged within a preset time, controlling the charge-discharge module to discharge outwards according to the control pilot signal of the discharge device includes:
if the connected discharging device is a vehicle-to-vehicle discharging gun, the discharging mode selected by the user is a vehicle-to-load mode, and the vehicle-to-vehicle discharging gun is connected to the vehicle to be charged within the preset time, controlling the charging and discharging module to discharge outwards according to the control guide signal of the vehicle-to-vehicle discharging gun, and prompting the user that the discharging mode is selected wrongly.
9. The electric vehicle discharge control method according to claim 7, wherein if the type of the connected discharge device does not match the discharge mode selected by the user and the discharge device is connected to the load or the vehicle to be charged within a preset time, controlling the charge-discharge module to discharge outwards according to the control pilot signal of the discharge device includes:
if the connected discharging device is a vehicle-to-load discharging gun, the discharging mode selected by the user is a vehicle-to-vehicle mode, and the vehicle-to-load discharging gun is connected to the load within the preset time, controlling the charging and discharging module to discharge outwards according to the control guide signal of the vehicle-to-load discharging gun, and prompting the user that the discharging mode is selected wrongly.
10. The electric vehicle discharge control method according to claim 7, further comprising:
if the type of the connected discharging device is not matched with the discharging mode selected by the user and the discharging device is not connected to the load or the vehicle to be charged within the preset time, controlling the discharging system of the electric vehicle to enter a dormant state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010274884.5A CN111555377A (en) | 2020-04-09 | 2020-04-09 | Electric vehicle discharging system, discharging control method and electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010274884.5A CN111555377A (en) | 2020-04-09 | 2020-04-09 | Electric vehicle discharging system, discharging control method and electric vehicle |
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| CN111555377A true CN111555377A (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010274884.5A Pending CN111555377A (en) | 2020-04-09 | 2020-04-09 | Electric vehicle discharging system, discharging control method and electric vehicle |
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Cited By (1)
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Application publication date: 20200818 |