CN113459842B - Charging plugging assisting device and method and electric automobile - Google Patents
Charging plugging assisting device and method and electric automobile Download PDFInfo
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- CN113459842B CN113459842B CN202111023428.4A CN202111023428A CN113459842B CN 113459842 B CN113459842 B CN 113459842B CN 202111023428 A CN202111023428 A CN 202111023428A CN 113459842 B CN113459842 B CN 113459842B
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- 238000001514 detection method Methods 0.000 claims abstract description 63
- 238000003780 insertion Methods 0.000 claims abstract description 39
- 230000037431 insertion Effects 0.000 claims abstract description 39
- 230000009471 action Effects 0.000 claims abstract description 36
- 238000000605 extraction Methods 0.000 claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
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- 230000005540 biological transmission Effects 0.000 description 3
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- 230000004075 alteration Effects 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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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 invention relates to the technical field of electric vehicle charging, provides a charging plug-in assisting device, a charging plug-in assisting method and an electric vehicle for solving the technical problem of reducing the plugging difficulty of a charging plug, the device comprises a plug detection assembly, a plug assisting mechanism and a main control module, wherein the plug detection assembly is used for detecting the position information of the charging plug relative to the charging port, the main control module is respectively connected with the plug detection assembly and the plug power-assisted mechanism, and is used for identifying the insertion action of the charging plug into the charging port and the extraction action of the charging plug from the charging port according to the position information of the charging plug relative to the charging port and controlling the plug power-assisted mechanism to perform insertion power assistance when identifying the insertion action, and controlling the plugging and unplugging power-assisted mechanism to perform unplugging power-assisted when the unplugging action is identified.
Description
Technical Field
The invention relates to the technical field of electric automobile charging, in particular to a charging plug power assisting device, an electric automobile and a charging plug power assisting method.
Background
In order to meet the requirement of safe use during charging of the electric automobile, the charging gun needs to meet the IP55 protection grade after being inserted into a charging port of the automobile end. For satisfying the IP55 protection level after inserting to close, charge the rifle and need carry out inseparable protection design between the mouth that charges, under this condition, insert the rifle in-process and charge and form the malleation between mouthful and the rifle that charges, pull out the rifle in-process and charge and form the negative pressure between mouthful and the rifle that charges, this can increase undoubtedly that the user inserts the resistance of pulling out the rifle in-process. At present, the gun is generally inserted and pulled by manually overcoming the heavy weight of the gun line and the resistance in the gun inserting and pulling process, and the operation experience of a user is greatly influenced.
Disclosure of Invention
The invention provides a charging plug-pull assisting device, a charging plug-pull assisting method and an electric automobile, aiming at solving the technical problems, and the charging plug-pull assisting device, the charging plug-pull assisting method and the electric automobile can greatly reduce the difficulty of plugging and pulling a charging plug and improve the charging experience of a user.
The technical scheme adopted by the invention is as follows:
the plug detection assembly is used for detecting position information of a charging plug relative to a charging port, the main control module is respectively connected with the plug detection assembly and the plug power-assisted mechanism, and the main control module is used for identifying the insertion action of the charging plug into the charging port and the extraction action of the charging plug from the charging port according to the position information of the charging plug relative to the charging port, controlling the plug power-assisted mechanism to perform insertion power assistance when identifying the insertion action, and controlling the plug power-assisted mechanism to perform extraction power assistance when identifying the extraction action.
The plug detection assembly comprises a first detection unit arranged at the opening end of the charging port and a second detection unit arranged at the bottom end of the charging port.
The main control module judges that the charging plug is in a completely pulled-out state when the first detection unit and the second detection unit do not detect the charging plug, and identifies the insertion action of the charging plug into the charging port if the first detection unit detects the charging plug and the second detection unit does not detect the charging plug after judging that the charging plug is in the completely pulled-out state; the main control module judges that the charging plug is in a fully inserted state when the first detection unit and the second detection unit both detect the charging plug, and identifies the pulling-out action of the charging plug from the charging port if the first detection unit detects the charging plug and the second detection unit does not detect the charging plug after judging that the charging plug is in the fully inserted state.
The first detection unit and the second detection unit are infrared geminate transistors or micro switches or contact type contacts.
Plug assist drive device includes air flue and air pump, the air flue passes through the bottom of charging the mouth with the mouth that charges is linked together, the air pump with host system links to each other, host system control the air pump passes through the air flue is taken out the intraoral gas of charging is in order to insert the helping hand, and control the air pump passes through the air flue to the intraoral injection gas of charging is in order to extract the helping hand.
The plug power assisting device that charges still include first pressure sensor, flow sensor and second pressure sensor, first pressure sensor with flow sensor set up in the air flue, second pressure sensor set up in charge the mouth, first pressure sensor flow sensor with second pressure sensor respectively with host system links to each other, first pressure sensor is used for detecting the atmospheric pressure of air flue, flow sensor is used for detecting the gas flow of air flue, second pressure sensor is used for detecting the intraoral atmospheric pressure of charging, host system still is used for the basis the atmospheric pressure of air flue the gas flow of air flue with the intraoral atmospheric pressure real-time supervision of charging charge plug with the protective conditions between the mouth charges.
The main control module is also used for determining the amount of gas extracted during power assisting insertion and the amount of gas injected during power assisting extraction according to the protection condition between the charging plug and the charging port monitored in real time.
An electric automobile, includes above-mentioned plug booster unit that charges.
A charging plugging assisting method comprises the following steps: detecting position information of the charging plug relative to the charging port; identifying the insertion action of the charging plug into the charging port and the extraction action of the charging plug from the charging port according to the position information of the charging plug relative to the charging port; the insertion assisting force is performed when the insertion operation is recognized, and the extraction assisting force is performed when the extraction operation is recognized.
The insertion assisting force is performed by extracting gas in the charging port, and the extraction assisting force is performed by injecting gas into the charging port.
The invention has the beneficial effects that:
the invention can greatly reduce the difficulty of plugging and unplugging the charging plug and improve the charging experience of a user.
Drawings
Fig. 1 is a schematic block diagram of a charging plug power assisting device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the installed position of the plug detection assembly according to one embodiment of the present invention;
fig. 3 is a schematic diagram illustrating an installation position of an infrared pair tube according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a charging plug power assisting device according to an embodiment of the present invention;
FIG. 5 is a flowchart of a charging plug assist method according to an embodiment of the invention;
fig. 6 is a flowchart of a charging plug assisting method according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The charging plugging assisting device is applied to plugging assisting in a charging scene in which a charging plug is matched with a charging port, the charging plug can be located at a pile end, for example, a charging gun of a charging pile, and the charging port can be located at a vehicle end.
As shown in fig. 1, the charging plug power assisting device according to an embodiment of the present invention includes a plug detecting assembly 10, a plug power assisting mechanism 20 and a main control module 30, wherein the plug detecting assembly 10 is configured to detect position information of a charging plug relative to a charging port, the main control module 30 is respectively connected to the plug detecting assembly 10 and the plug power assisting mechanism 20, and the main control module 30 is configured to identify an insertion motion of the charging plug into the charging port and a pulling motion of the charging plug out of the charging port according to the position information of the charging plug relative to the charging port, control the plug power assisting mechanism to perform insertion power assisting when the insertion motion is identified, and control the plug power assisting mechanism to perform pulling power assisting when the pulling motion is identified.
In one embodiment of the present invention, as shown in fig. 2, the plug detection assembly 10 includes a first detection unit 11 disposed at an open end of the charging port and a second detection unit 12 disposed at a bottom end of the charging port. The first detection unit 11 and the second detection unit 12 can both detect whether the charging plug reaches the position of the charging plug, and therefore, the position information of the charging plug relative to the charging port can be obtained by combining whether the charging plug reaches the opening end of the charging port and the bottom end of the charging port.
The main control module 30 determines that the charging plug is in a completely pulled-out state when neither the first detection unit 11 nor the second detection unit 12 detects the charging plug, recognizes an insertion motion of the charging plug into the charging port if the first detection unit 11 detects the charging plug and the second detection unit 12 does not detect the charging plug after determining that the charging plug is in the completely pulled-out state, and determines that the charging plug is inserted completely if both the first detection unit 11 and the second detection unit 12 detect the charging plug after recognizing the insertion motion. The main control module 30 determines that the charging plug is in a fully inserted state when the first detection unit 11 and the second detection unit 12 both detect the charging plug, and after determining that the charging plug is in the fully inserted state, if the first detection unit 11 detects the charging plug and the second detection unit 12 does not detect the charging plug, recognizes a pulling-out motion of the charging plug from the charging port, and after recognizing the pulling-out motion, if the first detection unit 11 and the second detection unit 12 do not detect the charging plug, determines that the pulling-out of the charging plug is completed.
In an embodiment of the present invention, each of the first detection unit 11 and the second detection unit 12 may be any component capable of performing in-place detection, such as an infrared pair tube, a micro switch, a contact type contact, or the like. The first detecting means 11 and the second detecting means 12 may be the same type or different types.
As shown in fig. 3, taking the first detection unit 11 and the second detection unit 12 as an example of an infrared pair tube, that is, the first detection unit 11 includes an infrared emission tube a and an infrared receiving tube a, and the second detection unit 12 includes an infrared emission tube B and an infrared receiving tube B, in a specific embodiment of the present invention, the infrared emission tube a and the infrared receiving tube a are oppositely disposed on the inner wall at the opening end of the charging port, and the infrared emission tube B and the infrared receiving tube B are oppositely disposed on the inner wall at the bottom end of the charging port. The infrared transmitting tube of each infrared pair of tubes transmits infrared rays and can be received by the infrared receiving tube thereof. If a charging plug is not arranged at one infrared geminate transistor, the space between an infrared transmitting tube and an infrared receiving tube of the infrared geminate transistor is not shielded, the infrared receiving tube can receive infrared rays, and the signal of the infrared receiving tube is the signal that the charging plug is not detected; if the charging plug reaches a certain infrared geminate transistor, the infrared transmitting tube and the infrared receiving tube of the infrared geminate transistor are shielded, the infrared receiving tube cannot receive infrared rays, and the signal of the infrared receiving tube is the signal for detecting the charging plug. Through the connection of the infrared receiving tube and the main control module 30, a signal that the charging plug is not detected and a signal that the charging plug is detected can be transmitted to the main control module 30.
In an embodiment of the present invention, as shown in fig. 4, the plug assist mechanism 20 includes an air passage 21 and an air pump 22, the air passage 21 is communicated with the charging port through the bottom end of the charging port, the air pump 22 is connected to the main control module 30, the main control module 30 controls the air pump 22 to pump air in the charging port through the air passage 21 for insertion assist, and controls the air pump 22 to inject air into the charging port through the air passage 21 for extraction assist.
In other embodiments of the present invention, the plug assist mechanism 20 may also be an electromagnetic assist mechanism, a transmission assist mechanism, or the like. For example, the electromagnetic members are respectively arranged at the bottom end of the charging port and the head of the charging plug, the insertion assisting force is performed by controlling the two electromagnetic members to generate attractive magnetic force, and the extraction assisting force is performed by controlling the two electromagnetic members to generate repulsive magnetic force. And for example, transmission structures such as a gear, a rack, a chain or a belt are respectively arranged on the side surface of the charging port and the side surface of the charging plug, and the insertion assistance and the extraction assistance are carried out by controlling the transmission structures.
Taking the first detection unit 11 and the second detection unit 12 as infrared geminate transistors, the plug-pull assisting mechanism 20 comprises an air passage 21 and an air pump 22, and the charging plug is a charging gun as an example, the flow of the charging plug-pull assisting is as follows: the infrared receiving tube a and the infrared receiving tube b can receive infrared rays initially, namely, the charging gun is completely pulled out initially; judging whether the infrared receiving tube a detects that the infrared rays are blocked; if the infrared receiving tube a detects that the infrared rays are blocked, the gun insertion is started, and the air pump 22 can be controlled to start air extraction at the moment; then judging whether the infrared receiving tube b detects that the infrared rays are blocked; if the infrared receiving tube b detects that the infrared rays are blocked, the charging gun head reaches the bottom end of the charging port, the gun inserting is completed, and the air pump 22 can be controlled to stop pumping air at the moment; then judging whether the infrared receiving tube b receives infrared rays; if the infrared receiving tube b receives infrared rays, the gun pulling is started, and the air pump 22 can be controlled to start air injection; then judging whether the infrared receiving tube a receives infrared rays; if the infrared receiving tube a receives infrared rays, the charging gun head reaches the outside of the opening end of the charging port, the gun pulling is finished, and the air pump 22 can be controlled to stop injecting air at the moment.
According to the charging plug power assisting device provided by the embodiment of the invention, the plug detection assembly is used for detecting the position information of the charging plug relative to the charging port, the main control module can identify the insertion action of the charging plug into the charging port and the extraction action of the charging plug from the charging port according to the position information of the charging plug relative to the charging port, control the plug power assisting mechanism to perform insertion power assisting when the insertion action is identified, and control the plug power assisting mechanism to perform extraction power assisting when the extraction action is identified, so that the difficulty of plugging and extracting the charging plug can be greatly reduced, and the charging experience of a user is improved.
Further, as shown in fig. 4, the charging plug-pull assisting device according to the embodiment of the present invention may further include a first pressure sensor 40, a flow sensor 50, and a second pressure sensor 60, where the first pressure sensor 40 and the flow sensor 50 are disposed on the air duct 21, the second pressure sensor 60 is disposed on the charging port, and the first pressure sensor 40, the flow sensor 50, and the second pressure sensor 60 are respectively connected to the main control module 30. First pressure sensor 40 is used for detecting the atmospheric pressure of air flue, and flow sensor 50 is used for detecting the gas flow of air flue, and second pressure sensor 60 is used for detecting the intraoral atmospheric pressure that charges, and main control module 30 still is used for charging the protective conditions between plug and the mouth that charges according to the atmospheric pressure of air flue, the gas flow of air flue and the intraoral atmospheric pressure real-time supervision that charges.
Specifically, from the ideal gas state equation pV = nRT (where p is pressure, V is gas volume, T is temperature, n is the amount of substance of the gas, and R is the molar gas constant), it can be seen that p1V1= p2V2 (where p1 is intake pressure, V1 is intake volume, p2 is pressure in the charging port, and V2 is the volume of the space in the charging port that contains the gas) without taking into account the temperature change. Further, since V1= qvt (where qv is a volume flow rate and t is time), the gas leakage amount a = p1qvt-p2V2 and the gas leakage rate S = a/t = (p1qvt-p2V2)/t can be obtained. When the charging plug is in a fully inserted state, the main control module 30 may control the air pump 22 to inject air into a space between the charging plug and the charging port, detect an intake pressure p1 through the first pressure sensor 40, detect a pressure p2 in the charging port through the second pressure sensor 60, detect an intake volume flow qv through the flow sensor 50, calculate an air leakage speed S by combining the volume and time of the space between the charging plug and the charging port, and obtain the tightness of the combination between the charging plug and the charging port according to the air leakage speed S, that is, obtain the protection condition between the charging plug and the charging port. The correspondence between the gas leakage rate S and the protection situation may be predetermined, for example, a certain leakage rate S corresponds to a certain protection level.
Further, it should be understood that the tighter the coupling between the charging plug and the charging port, the less the amount of gas that is withdrawn/injected during insertion/extraction of the power assist. Therefore, in an embodiment of the present invention, the main control module 30 may further determine the amount of gas to be extracted when performing the insertion assisting force and the amount of gas to be injected when performing the extraction assisting force according to the protection between the charging plug and the charging port monitored in real time. The specific correspondence between the protection situation and the amount of gas may be set in combination with the setting manner of the protection level, the requirement for the degree of assist, and the like, and is not particularly limited herein.
Based on the charging plugging power assisting device of the embodiment, the invention further provides an electric automobile.
The electric automobile provided by the embodiment of the invention comprises the charging plugging assisting device provided by any one of the embodiments of the invention.
According to the electric automobile provided by the embodiment of the invention, the difficulty of plugging and unplugging the charging plug can be greatly reduced, and the charging experience of a user is improved.
Based on the charging plugging power assisting device of the embodiment, the invention further provides a charging plugging power assisting method.
The charging plugging assisting method according to the embodiment of the present invention can be executed by the charging plugging assisting device according to any one of the above embodiments, and the charging plugging assisting method will be described with reference to some embodiments.
As shown in fig. 5, the charging plug-pull assisting method according to the embodiment of the present invention includes the following steps:
s1, position information of the charging plug with respect to the charging port is detected.
In one embodiment of the present invention, the position information of the charging plug with respect to the charging port may be detected by an infrared pair tube disposed at an open end of the charging port and an infrared pair tube disposed at a bottom end of the charging port.
In other embodiments of the present invention, the infrared pair transistors may be replaced with other components capable of performing in-place detection, such as a micro switch or a contact type contact.
And S2, recognizing the inserting action of the charging plug into the charging port and the pulling action of the charging plug out of the charging port according to the position information of the charging plug relative to the charging port.
Specifically, when the infrared pair transistor at the opening end of the charging port and the infrared pair transistor at the bottom end of the charging port do not detect the charging plug, it can be determined that the charging plug is in a completely pulled-out state, after it is determined that the charging plug is in the completely pulled-out state, if the infrared pair transistor at the opening end of the charging port detects the charging plug and the infrared pair transistor at the bottom end of the charging port does not detect the charging plug, the insertion action of the charging plug into the charging port is recognized, and after the insertion action is recognized, if the infrared pair transistor at the opening end of the charging port and the infrared pair transistor at the bottom end of the charging port both detect the charging plug, it is determined that the charging plug is inserted completely. When the infrared pair transistors at the opening end of the charging port and the infrared pair transistors at the bottom end of the charging port detect the charging plug, judging that the charging plug is in a fully inserted state, after judging that the charging plug is in the fully inserted state, if the infrared pair transistors at the opening end of the charging port detect the charging plug and the infrared pair transistors at the bottom end of the charging port do not detect the charging plug, identifying the pulling-out action of the charging plug from the charging port, and after identifying the pulling-out action, if the infrared pair transistors at the opening end of the charging port and the infrared pair transistors at the bottom end of the charging port do not detect the charging plug, judging that the pulling-out of the charging plug is completed.
And S3, performing insertion assisting force when the insertion action is recognized, and performing extraction assisting force when the extraction action is recognized.
In one embodiment of the invention, the insertion assisting force may be performed by extracting gas in the charging port, and the extraction assisting force may be performed by injecting gas into the charging port.
In an embodiment of the present invention, the charging plug is a charging gun, as shown in fig. 6, the charging plug assisting method includes the following steps:
s601, the infrared geminate transistors at the opening end of the charging port and the infrared geminate transistors at the bottom end of the charging port are not shielded. I.e. initially in a state in which the charging gun is completely withdrawn.
And S602, judging whether the infrared geminate transistors at the opening end of the charging port are shielded. If yes, go to step S603; if not, continuing to judge whether the infrared geminate transistor is shielded.
And S603, starting air extraction.
S604, judging whether the infrared geminate transistors at the bottom end of the charging port are shielded. If yes, go to step S605; if not, the flow returns to step S603 to continue the gun insertion assist.
S605, stopping air extraction.
S606, whether the infrared geminate transistor at the bottom end of the charging port is not shielded is judged. If yes, go to step S607; if not, continuing to judge whether the infrared geminate transistor is not shielded.
S607, gas injection is started.
S608, whether the infrared geminate transistors at the opening end of the charging port are not shielded is judged. If yes, go to step S609; if not, the process returns to step S607 to continue the gun pulling assisting force.
And S609, stopping gas injection.
According to the charging plug-pull assisting method provided by the embodiment of the invention, the position information of the charging plug relative to the charging port is detected, then the inserting action of the charging plug into the charging port and the pulling action of the charging plug out of the charging port are identified according to the position information of the charging plug relative to the charging port, the inserting assisting is carried out when the inserting action is identified, and the pulling assisting is carried out when the pulling action is identified, so that the difficulty of plugging and pulling the charging plug can be greatly reduced, and the charging experience of a user is improved.
Further, in an embodiment of the present invention, the protection between the charging plug and the charging port can be monitored in real time. In the embodiment of the invention, the air pump is controlled to inject air into the charging port and extract air in the charging port from the air passage, specifically, the air pressure of the air passage can be detected, the air flow of the air passage can be detected, the air pressure in the charging port can be detected, and then the protection condition between the charging plug and the charging port can be monitored in real time according to the air pressure of the air passage, the air flow of the air passage and the air pressure in the charging port.
In addition, the amount of gas extracted during the insertion assisting power and the amount of gas injected during the extraction assisting power can be determined according to the protection condition between the charging plug and the charging port monitored in real time.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. A charging plug-pull assisting device is characterized by comprising a plug detection assembly, a plug-pull assisting mechanism and a main control module, wherein the plug detection assembly is used for detecting position information of a charging plug relative to a charging port, the main control module is respectively connected with the plug detection assembly and the plug-pull assisting mechanism, the main control module is used for identifying an inserting action of the charging plug into the charging port and an extracting action of the charging plug from the charging port according to the position information of the charging plug relative to the charging port, controlling the plug-pull assisting mechanism to perform inserting assisting when identifying the inserting action, and controlling the plug-pull assisting mechanism to perform extracting assisting when identifying the extracting action,
the plug detection assembly comprises a first detection unit arranged at the opening end of the charging port and a second detection unit arranged at the bottom end of the charging port,
the main control module judges that the charging plug is in a completely pulled-out state when the first detection unit and the second detection unit do not detect the charging plug, and identifies the insertion action of the charging plug into the charging port if the first detection unit detects the charging plug and the second detection unit does not detect the charging plug after judging that the charging plug is in the completely pulled-out state; the main control module judges that the charging plug is in a fully inserted state when the first detection unit and the second detection unit both detect the charging plug, and identifies the pulling-out action of the charging plug from the charging port if the first detection unit detects the charging plug and the second detection unit does not detect the charging plug after judging that the charging plug is in the fully inserted state.
2. The charging plug power-assisted device according to claim 1, wherein the first detection unit and the second detection unit are infrared pair tubes, micro switches or contact type contacts.
3. The charging plug-pull assisting device according to claim 1, wherein the plug-pull assisting mechanism comprises an air passage and an air pump, the air passage is communicated with the charging port through the bottom end of the charging port, the air pump is connected with the main control module, the main control module controls the air pump to pump air in the charging port out through the air passage to perform insertion assisting, and controls the air pump to inject air into the charging port through the air passage to perform extraction assisting.
4. The charging plug and pull assisting device according to claim 3, further comprising a first pressure sensor, a flow sensor and a second pressure sensor, the first pressure sensor and the flow sensor are arranged on the air passage, the second pressure sensor is arranged on the charging port, the first pressure sensor, the flow sensor and the second pressure sensor are respectively connected with the main control module, the first pressure sensor is used for detecting the air pressure of the air passage, the flow sensor is used for detecting the air flow of the air passage, the second pressure sensor is used for detecting the air pressure in the charging port, and the main control module is further used for monitoring the protection condition between the charging plug and the charging port in real time according to the air pressure of the air passage, the air flow of the air passage and the air pressure in the charging port.
5. The charging plugging and unplugging power assisting device according to claim 4, wherein the main control module is further used for determining the amount of gas extracted during power assisting insertion and the amount of gas injected during power assisting unplugging according to the protection condition between the charging plug and the charging port monitored in real time.
6. An electric vehicle, characterized in that it comprises a charging plug power assisting device according to any one of claims 1-5.
7. A charging plug power-assisting method based on the charging plug power-assisting device as claimed in any one of claims 1 to 5, characterized by comprising the following steps:
detecting position information of the charging plug relative to the charging port;
identifying the insertion action of the charging plug into the charging port and the extraction action of the charging plug from the charging port according to the position information of the charging plug relative to the charging port;
the insertion assisting force is performed when the insertion operation is recognized, and the extraction assisting force is performed when the extraction operation is recognized.
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| CN202111023428.4A CN113459842B (en) | 2021-09-02 | 2021-09-02 | Charging plugging assisting device and method and electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111023428.4A CN113459842B (en) | 2021-09-02 | 2021-09-02 | Charging plugging assisting device and method and electric automobile |
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| CN113459842A CN113459842A (en) | 2021-10-01 |
| CN113459842B true CN113459842B (en) | 2021-12-28 |
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| AU4714585A (en) * | 1984-09-06 | 1986-03-13 | Integrated Circuit Systems Ltd. | Auto-release coupling |
| CN105356152A (en) * | 2015-10-29 | 2016-02-24 | 广州慧睿思通信息科技有限公司 | Power-assisted plug-pull device and plug-pull method thereof |
| CN206962140U (en) * | 2017-07-31 | 2018-02-02 | 北京新能源汽车股份有限公司 | Charging connector and vehicle |
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| CN113459842A (en) | 2021-10-01 |
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