CN110271439B - Charging device, charging method, computer device, and storage medium - Google Patents
Charging device, charging method, computer device, and storage medium Download PDFInfo
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- CN110271439B CN110271439B CN201910456176.0A CN201910456176A CN110271439B CN 110271439 B CN110271439 B CN 110271439B CN 201910456176 A CN201910456176 A CN 201910456176A CN 110271439 B CN110271439 B CN 110271439B
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- 238000012795 verification Methods 0.000 claims abstract description 99
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- 238000004590 computer program Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 description 7
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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
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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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- 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
- B60L53/18—Cables specially adapted for charging electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for 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
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a charging device, which comprises a connection confirmation unit, a charging unit and a charging unit, wherein the connection confirmation unit is used for confirming the charging connection between the charging device and equipment to be charged; the signal sending unit is used for sending a check voltage to the equipment to be charged after the charging connection is confirmed; the verification unit is used for receiving a voltage signal sent by the equipment to be charged and comparing whether a voltage difference value between the voltage signal and the verification voltage meets a preset condition or not; and the control unit is used for matching the voltage signal with the charging state when the voltage signal meets the preset condition, and controlling the signal sending unit to send the charging voltage signal so as to judge the charging state of the equipment to be charged. In addition, a charging method, a computer device and a storage medium for executing the charging device are also provided.
Description
Technical Field
The invention relates to the field of intelligent charging, in particular to a charging device, a charging method, computer equipment and a storage medium capable of reducing charging connection faults.
Background
With the continuous improvement of the scientific and technological level and the living standard of people, more and more people start to buy vehicles to improve the convenience of life and improve the quality of life. However, due to the increasing capacity of vehicles, the emission of vehicle exhaust has a great influence on the ecological environment. In order to improve the increasingly worsened ecological environment, electric automobiles are produced, the electric automobiles drive the vehicles to run through electric power, vehicle tail gas cannot be generated in the running process, and the electric automobiles have great effects on reducing the vehicle tail gas and improving the environmental pollution.
At present, when the electric automobile is charged, the electric automobile needs to be connected with a charging pile through a charging gun and a cable so as to carry out communication confirmation, after the electric automobile is connected with the charging pile, charging connection confirmation and control guidance confirmation need to be carried out, when the control guidance confirmation, a charging voltage signal is sent to the electric automobile through the charging pile, the electric automobile receives the charging voltage signal and then feeds back the voltage signal to the charging pile, and the charging pile receives the voltage signal and then judges the charging state of the electric automobile according to the voltage signal. In section 1 of electric vehicle transfer to charging request: the general requirements are that in the charging control guidance circuit specified in GB/T18487.1-2015, the charging pile receives six different voltage signals to determine different charging states of the electric vehicle, but when the charging pile and the electric vehicle are connected by a charging gun and a cable, the cable causes voltage loss when the electric vehicle is transmitted to the charging pile through the cable due to aging, so that the voltage signal received by the charging pile end does not conform to the voltage signal in the charging control guidance circuit specified in GB/T18487.1-2015, so that the charging pile cannot identify the voltage signal and the charging state of the electric vehicle, thereby causing a charging fault. Therefore, how to have a charging connection failure avoiding the cable loss becomes an important issue for the development of the charging industry.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a charging device capable of reducing charging connection faults.
In order to achieve the purpose, the invention adopts the following technical scheme:
a connection confirmation unit for confirming a charging connection of the charging device and a device to be charged;
the signal sending unit is used for sending a check voltage to the equipment to be charged after the charging connection is confirmed;
the verification unit is used for receiving a voltage signal sent by the equipment to be charged and comparing whether a voltage difference value between the voltage signal and the verification voltage meets a preset condition or not;
and the control unit is used for matching the voltage signal with the charging state when the voltage signal meets the preset condition, and controlling the signal sending unit to send the charging voltage signal so as to judge the charging state of the equipment to be charged.
In a second aspect, the present invention provides a charging method, comprising:
confirming charging connection between a charging device and equipment to be charged;
transmitting a check voltage and receiving a voltage signal;
comparing whether the voltage difference value of the voltage signal and the check voltage meets a preset condition or not;
if the preset conditions are met, matching the voltage signal with the charging state;
and sending a charging voltage signal and judging the charging state.
In a third aspect, the present invention provides a computer device comprising a memory for storing a computer program and a processor for executing the computer program to cause the computer device to perform the charging method according to the second aspect of the present invention.
In a fourth aspect, the present invention provides a storage medium storing a computer program that, when executed, implements the charging method of the second aspect of the present invention.
The invention has the beneficial effects that:
the charging device provided by the invention can verify the voltage difference value between the charging signal of the equipment to be charged and the verification voltage during charging connection, and re-match the charging voltage and the charging state when the voltage difference value meets the preset condition, so that the communication connection between the charging device and the equipment to be charged can be realized under the condition that the voltage loss of a charging cable occurs, the compatibility of the charging device is improved, and the charging intelligence is realized.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of the present invention.
Fig. 1 is a block diagram of a charging device according to a preferred embodiment of the invention.
Fig. 2 is a flowchart of a charging method according to another preferred embodiment of the invention.
FIG. 3 is a block diagram of a computer device according to another preferred embodiment of the present invention.
FIG. 4 is a block diagram of a computer storage medium according to another preferred embodiment of the present invention.
Detailed Description
Various embodiments of the present invention will be described more fully hereinafter. The invention is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit various embodiments of the invention to the specific embodiments disclosed herein, but on the contrary, the intention is to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of various embodiments of the invention.
Hereinafter, the terms "includes" or "may include" used in various embodiments of the present invention indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to mean that the specified features, numbers, steps, operations, elements, components, or combinations of the foregoing, are only meant to indicate that a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to the possibility of, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
In various embodiments of the invention, the expression "a or/and B" includes any or all combinations of the words listed simultaneously, e.g., may include a, may include B, or may include both a and B.
Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.
It should be noted that: in the present invention, unless otherwise explicitly stated or defined, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; there may be communication between the interiors of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, it should be understood by those skilled in the art that the terms indicating an orientation or a positional relationship herein are based on the orientations and the positional relationships shown in the drawings and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation and operate, and thus, should not be construed as limiting the present invention.
The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the invention. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
Referring to fig. 1, fig. 1 is a block diagram illustrating a charging device according to a preferred embodiment of the invention.
The charging device 100 is disposed on a parking space corresponding to a community, and is used for charging a device to be charged, such as an electric vehicle, parked on the parking space. The charging device 100 may be a charging pile, such as a floor type charging pile, a wall-mounted charging pile, and the like. In the present embodiment, the charging device 100 includes a connection confirming unit 10, a signal sending unit 20, a verifying unit 30 and a control unit 40, and the connection confirming unit 10, the signal sending unit 20 and the verifying unit 30 are all electrically connected to the control unit 40 to send information to the control unit 40 and receive a control command sent by the control unit 40.
In the present embodiment, the connection confirming unit 10 is configured to confirm whether the charging device 100 and the device to be charged are connected. It can be understood that, when the device to be charged needs to be charged by using the charging device 100, the device to be charged needs to be electrically connected through a charging gun and a charging cable attached to the charging device 100 or carried by a user, and then the device to be charged needs to be powered by the charging device 100. In the present embodiment, the connection confirming unit 10 may be a connection detecting circuit provided at a charging port or a charging gun of the charging device 100 to detect whether the charging device 100 and the device to be charged are connected. Specifically, after the charging device 100 and the device to be charged are electrically connected, the connection detection circuit is in a conducting state to detect a low level, and when the charging device 100 and the device to be charged are not connected, the connection detection circuit is in a disconnecting state to detect a high level, and whether the charging device 100 and the device to be charged are connected is determined and confirmed according to a level signal detected by the connection detection circuit. Further, after the charging device 100 is electrically connected to the device to be charged, the connection confirmation unit 10 sends a connection confirmation signal to the control unit 40.
Further, the signal sending unit 20 is configured to send a verification voltage to the device to be charged to verify that the charging apparatus 100 receives the charging voltage and the charging state of the device to be charged. Further, after receiving the connection confirmation signal sent by the connection confirmation unit 10, the control unit 40 sends a control instruction to the signal sending unit 20, and the signal sending unit 20 sends the verification voltage to the device to be charged.
Further, the check voltage includes various charging voltage signals sent by the charging device 100 and the device to be charged in the charging process, so as to check a voltage signal fed back by the device to be charged after receiving the check voltage, and to facilitate the subsequent matching of the charging state of the device to be charged according to the voltage signal.
Further, in this embodiment, the verification voltage includes a first verification voltage, a second verification voltage, a third verification voltage, a fourth verification voltage, a fifth verification voltage, and a sixth verification voltage, where the first verification voltage is a 12V voltage signal, the second verification voltage is a +12V/-12V pulse width modulation signal, the third verification voltage is a 9V voltage signal, the fourth verification voltage is a +9V/-12V pulse width modulation signal, the fifth verification voltage is a 6V voltage signal, and the sixth verification voltage is a +6V/-12V pulse width modulation signal.
Further, the device to be charged can generate a voltage signal after receiving the verification voltage and feed back the voltage signal to the charging apparatus 100. In this embodiment, the verification unit 100 is configured to receive a voltage signal sent by the device to be charged and further compare whether a voltage difference between the voltage signal and the verification voltage meets a preset condition.
It can be understood that if the device to be charged fails or a connection cable between the device to be charged and the charging apparatus 100 is aged, the voltage signal received by the charging apparatus 100 is smaller than the voltage signal received during normal charging, in this case, after the charging apparatus 100 receives the voltage signal, the voltage signal may exceed a set value, and the voltage signal cannot be identified, and thus the charging state of the device to be charged cannot be identified, which results in a charging connection failure. For example: when the device to be charged is normally connected to the charging apparatus 100 and there is no fault, the signal sending unit 20 of the charging apparatus 100 sends a voltage of 12V, so that the device to be charged can feed back the voltage of 12V, and after the charging apparatus 100 receives the voltage of 12V, it can be determined that the device to be charged is in an unconnected state; if there is a fault in connection between the device to be charged and the charging apparatus 100, the signal sending unit 20 sends a voltage of 12V, the device to be charged feeds back a voltage of 10V, and if the charging apparatus 100 receives the voltage of 10V, the state of the device to be charged cannot be identified, which results in a charging connection fault and charging cannot be performed. Further, the charging connection fault may be caused by a fault occurring inside the device to be charged or a loss of a charging cable, if the device to be charged has an internal fault, when the signal sending unit sends different verification voltages, an irregular voltage value condition exists in a voltage signal fed back by the device to be charged; if the charging cable is aged and is leaded to, then when waiting that the battery charging outfit sends different check voltages, the voltage signal of waiting the battery charging outfit feedback will have the voltage loss condition of certain law, can pass through this moment wait that the voltage condition of battery charging outfit feedback comes the analysis because the loss appears and leads to voltage signal abnormal for the battery charging outfit, if the cable is aged and leads to charging connection trouble then can be in certain extent the voltage signal with the battery charging outfit of waiting the battery charging outfit, thereby wait the battery charging outfit with charging device 100's normal communication.
In this embodiment, the voltage signals include a first voltage signal, a second voltage signal, a third voltage signal, a fourth voltage signal, a fifth voltage signal, and a sixth voltage signal. Specifically, when the signal transmitting unit 20 transmits the first verification voltage, the verifying unit 30 receives the first voltage signal; when the signal transmitting unit 20 transmits the second verification voltage, the verifying unit 30 receives the second voltage signal; when the signal transmitting unit 20 transmits the third verification voltage, the verifying unit 30 receives the third voltage signal; when the signal transmitting unit 20 transmits the fourth verification voltage, the verifying unit 30 receives the fourth voltage signal; when the signal transmitting unit 20 transmits a fifth verification voltage, the verifying unit 30 receives the fifth voltage signal; when the signal transmitting unit 20 transmits the sixth verification voltage, the verifying unit 30 receives the sixth voltage signal.
Further, the verification unit 30 further compares whether a voltage difference between the voltage signal and the verification voltage meets a preset condition after receiving the voltage signal fed back by the device to be charged. If the voltage difference value between the voltage signal and the check voltage meets a preset condition, it is indicated that the voltage signal is smaller than a normal value due to aging of the charging cable; and if the voltage difference value between the voltage signal and the verification voltage does not meet the preset condition, indicating that the equipment to be charged is abnormal.
Further, in this embodiment, the voltage difference includes a first voltage difference, a second voltage difference and a third voltage difference, where the first voltage difference is a voltage difference between the first verification voltage and the first voltage signal, the second voltage difference is a voltage difference between the third verification voltage and the third voltage signal, and the third voltage difference is a voltage difference between the fifth verification voltage and the fifth voltage signal. In this embodiment, the preset condition is that the ratio of the first voltage difference to the second voltage difference is not less than 90%, and the ratio of the second voltage difference to the third voltage difference is not less than 90%. It can be understood that, due to aging loss of the charging cable, in the case of the same charging cable, the loss of the charging cable is relatively high as the voltage is higher, for example, the loss of 12V through the charging cable is 2.1V, the loss of 9V through the charging cable is 2V, and the loss of 6V through the charging point cable is 1.9V. Therefore, in this embodiment, if the ratio of the first voltage difference to the second voltage difference is not less than 90%, and the ratio of the second voltage difference to the third voltage difference is not less than 90%, it indicates that the voltage loss occurring in the charging process is caused by the aging of the charging cable, and the device to be charged has no fault, and at this time, the verification unit 30 transmits the voltage signal to the control unit 40 to record the voltage signal.
It can be understood that, if the verification unit 30 determines whether the voltage difference between the voltage signal and the verification voltage meets the preset condition, it indicates that the voltage signal fed back is abnormal due to a fault of the vehicle, and at this time, if the verification fails, the charging connection between the device to be charged and the charging apparatus 100 is not allowed to be established, and then the connection between the charging apparatus 100 and the device to be charged is further disconnected, so as to avoid an accident.
Further, after receiving the voltage signal, the control unit 40 further matches the voltage signal with the charging state of the device to be charged, so that the charging apparatus 100 can determine the charging state of the device to be charged according to the verified voltage signal. Further, the charging states include a first charging state, a second charging state, a third charging state and a fourth charging state, the control unit 40 establishes a matching relationship between the first voltage signal and the second voltage signal and the first charging state, the control unit is configured to establish a matching relationship between the third voltage signal and the second charging state, the control unit is configured to establish a matching relationship between the fourth voltage signal and the fifth voltage signal and the third charging state, and the control unit is configured to establish a matching relationship between the fifth voltage signal and the sixth voltage signal and the fourth charging state.
Further, when the control unit 40 matches the voltage signal with the charging state of the device to be charged, the charging state of the device to be charged may be further queried so as to charge the device to be charged. At this time, the control unit 40 controls the signal sending unit 20 to send a charging voltage signal to the device to be charged, and after receiving the voltage signal fed back by the device to be charged, the control unit 40 can match the charging state of the device to be charged according to the voltage signal, and further charge the device to be charged according to the charging state.
Further, after the charging device 100 establishes charging connection with the equipment to be charged at every time, the voltage signal sent by the equipment to be charged can be verified, meanwhile, whether the first voltage difference value exceeds the early warning value or not is compared, when the voltage difference value reaches the early warning value, it is indicated that the aging loss of the charging cable reaches the warning value, and the control unit can give an alarm so that a maintenance worker can replace the charging cable of the charging device 100. In this embodiment, the early warning value is 3V, that is, when the first voltage difference received by the charging device 100 is not less than 3V, it indicates that the loss of the charging cable reaches the warning value, that is, an alarm signal is sent to the charging management platform for maintenance.
In summary, the charging device of the present embodiment can verify the voltage difference between the charging signal of the device to be charged and the verification voltage when charging connection is performed each time, and the charging voltage and the charging state are re-matched when the voltage difference satisfies the preset condition, so that communication between the charging device and the device to be charged can be realized even when a certain loss occurs in the charging cable, compatibility of the charging device 100 is improved, and charging intelligence is realized. And can be in charging device 100 cable loss when reaching the early warning value, send alarm information to maintain the change, improved the security of charging.
As shown in fig. 2, another preferred embodiment of the present invention provides a charging method, which is applied to any embodiment or arrangement and combination of embodiments of the aforementioned charging device, and includes the following steps:
step S210: and confirming the charging connection between the charging device and the equipment to be charged.
Further, a connection detection circuit may be disposed in the charging device, and the connection detection circuit is in a conducting state after the charging device 100 and the device to be charged are electrically connected, and is in a disconnecting state when the charging device 100 and the device to be charged are not connected, so as to determine and confirm whether the charging device 100 and the device to be charged are electrically connected.
Step S220: the check voltage is transmitted and the voltage signal is received.
Further, after the charging connection between the charging device and the device to be charged is confirmed, the charging device can send a check voltage to the device to be charged and receive a voltage signal sent by the device to be charged.
Further, the verification voltage includes a first verification voltage, a second verification voltage, a third verification voltage, a fourth verification voltage, a fifth verification voltage, and a sixth verification voltage. The first verification voltage is a 12V voltage signal, the second verification voltage is a +12V/-12V pulse width modulation signal, the third verification voltage is a 9V voltage signal, the fourth verification voltage is a +9V/-12V pulse width modulation signal, the fifth verification voltage is a 6V voltage signal, and the sixth verification voltage is a +6V/-12V pulse width modulation signal.
Further, the voltage signals include a first voltage signal, a second voltage signal, a third voltage signal, a fourth voltage signal, a fifth voltage signal, and a sixth voltage signal.
Further, the step of transmitting the verification voltage and receiving the voltage signal includes:
receiving the first voltage signal when the first check voltage is sent;
receiving the second voltage signal when the second check voltage is sent;
receiving the third voltage signal when the third check voltage is sent;
receiving the fourth voltage signal when the fourth check voltage is sent;
receiving a fifth voltage signal when a fifth check voltage is sent;
and receiving the sixth voltage signal when the sixth verification voltage is sent.
Step S230: and comparing whether the voltage difference value of the voltage signal and the verification voltage meets a preset condition.
Further, a voltage difference between the voltage signal and the verification voltage is calculated after the voltage signal is received. In this embodiment, the voltage difference includes a first voltage difference, a second voltage difference and a third voltage difference, where the first voltage difference is a voltage difference between the first verification voltage and the first voltage signal, the second voltage difference is a voltage difference between the third verification voltage and the third voltage signal, and the third voltage difference is a voltage difference between the fifth verification voltage and the fifth voltage signal.
Further, in this embodiment, the preset condition is that a ratio of the first voltage difference to the second voltage difference is not less than 90%, and a ratio of the second voltage difference to the third voltage difference is not less than 90%. If the voltage difference value between the voltage signal and the check voltage is in accordance with the preset condition, executing step S240 to match the voltage signal with the charging state; and if the voltage difference value between the voltage signal and the verification voltage is in accordance with the preset condition, executing the step S241, and disconnecting the charging connection.
Step S240: matching the voltage signal and the state of charge.
Further, in the present embodiment, the charging states include a first charging state, a second charging state, a third charging state, and a fourth charging state.
Further, the step of matching the voltage signal and the state of charge comprises:
establishing a matching relationship between the first voltage signal and the second voltage signal and the first charging state;
establishing a matching relationship between the third voltage signal and the second charging state;
establishing a matching relationship between the fourth voltage signal and the fifth voltage signal and the third charging state;
and establishing a matching relationship between the fifth voltage signal and the sixth voltage signal and the fourth charging state.
Step S250: and sending a charging voltage signal and judging the charging state.
Further, after the voltage signal and the charging state are matched, the charging device can send a charging voltage signal to the equipment to be charged, and when the voltage signal sent by the equipment to be charged is received, the charging state information matched with the voltage signal can be inquired according to the value of the voltage signal, so that communication is established with the charging equipment to obtain the charging state of the charging equipment, and charging is achieved.
The charging method can verify the voltage difference value between the charging signal of the equipment to be charged and the verification voltage when charging connection is carried out each time, and the charging voltage and the charging state are matched again when the voltage difference value meets the preset condition, so that the communication between the charging device and the equipment to be charged can be realized under the condition that a charging cable has certain loss, the charging compatibility is improved, and the charging intelligence is realized.
Referring to fig. 3, another preferred embodiment of the present invention provides a computer apparatus 300, wherein the user equipment includes: a memory 310, a computer program 320 stored on the memory, and a processor 330, the processor 330 running the computer program 320 to cause the computer device to perform the charging method described above. The charging method can refer to the above embodiments, and details are not repeated herein.
Referring to fig. 4, another preferred embodiment of the present invention provides a storage medium 400, wherein the storage medium 400 stores a computer program 410, and the computer program 410 is executed by a processor to implement the charging method as described above. The charging method can refer to the above embodiments, and details are not repeated herein.
In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, other various changes and modifications can be made according to the above-described technical solutions and concepts, and all such changes and modifications should fall within the protection scope of the present invention.
Claims (9)
1. A charging device, comprising:
a connection confirmation unit for confirming a charging connection of the charging device and a device to be charged;
the signal sending unit is used for sending a check voltage to the equipment to be charged after the charging connection is confirmed;
the verification unit is used for receiving a voltage signal sent by the equipment to be charged and comparing whether a voltage difference value between the voltage signal and the verification voltage meets a preset condition or not;
the control unit is used for matching the voltage signal with the charging state of the equipment to be charged when the voltage signal meets the preset condition, and controlling the signal sending unit to send a charging voltage signal so as to judge the charging state of the equipment to be charged;
the checking voltage comprises a first checking voltage, a second checking voltage, a third checking voltage, a fourth checking voltage, a fifth checking voltage and a sixth checking voltage, the voltage signals comprise a first voltage signal, a second voltage signal, a third voltage signal, a fourth voltage signal, a fifth voltage signal and a sixth voltage signal, and the checking unit receives the first voltage signal when the signal sending unit sends the first checking voltage; when the signal sending unit sends the second verification voltage, the verification unit receives the second voltage signal; when the signal sending unit sends the third verification voltage, the verification unit receives the third voltage signal; when the signal sending unit sends the fourth verification voltage, the verification unit receives the fourth voltage signal; when the signal sending unit sends a fifth verification voltage, the verification unit receives the fifth voltage signal; when the signal sending unit sends the sixth verification voltage, the verification unit receives the sixth voltage signal;
the voltage difference value comprises a first voltage difference value, a second voltage difference value and a third voltage difference value, the first voltage difference value is a voltage difference value between the first verification voltage and the first voltage signal, the second voltage difference value is a voltage difference value between the third verification voltage and the third voltage signal, and the third voltage difference value is a voltage difference value between the fifth verification voltage and the fifth voltage signal;
the preset condition is that the ratio of the first voltage difference value to the second voltage difference value is not less than 90%, and the ratio of the second voltage difference value to the third voltage difference value is not less than 90%.
2. The charging device according to claim 1, wherein the first verification voltage is a 12V voltage signal, the second verification voltage is a +12V/-12V pulse width modulation signal, the third verification voltage is a 9V voltage signal, the fourth verification voltage is a +9V/-12V pulse width modulation signal, the fifth verification voltage is a 6V voltage signal, and the sixth verification voltage is a +6V/-12V pulse width modulation signal.
3. The charging device according to claim 1, wherein the charging states include a first charging state, a second charging state, a third charging state, and a fourth charging state, the control unit is configured to match the first voltage signal and the second voltage signal with the first charging state, the control unit is configured to match the third voltage signal with the second charging state, the control unit is configured to match the fourth voltage signal and the fifth voltage signal with the third charging state, and the control unit is configured to match the fifth voltage signal and the sixth voltage signal with the fourth charging state.
4. A charging method is characterized in that,
confirming charging connection between a charging device and equipment to be charged;
transmitting a check voltage and receiving a voltage signal;
comparing whether the voltage difference value of the voltage signal and the check voltage meets a preset condition or not;
if the preset conditions are met, matching the voltage signal with the charging state;
sending a charging voltage signal and judging the charging state;
the verification voltage comprises a first verification voltage, a second verification voltage, a third verification voltage, a fourth verification voltage, a fifth verification voltage and a sixth verification voltage;
the voltage signals comprise a first voltage signal, a second voltage signal, a third voltage signal, a fourth voltage signal, a fifth voltage signal and a sixth voltage signal;
the step of transmitting the verification voltage and receiving the voltage signal includes:
receiving the first voltage signal when the first check voltage is sent; receiving the second voltage signal when the second check voltage is sent; receiving the third voltage signal when the third check voltage is sent; receiving the fourth voltage signal when the fourth check voltage is sent; receiving a fifth voltage signal when a fifth check voltage is sent; receiving the sixth voltage signal when the sixth verification voltage is sent;
the voltage difference value comprises a first voltage difference value, a second voltage difference value and a third voltage difference value, the first voltage difference value is a voltage difference value between the first checking voltage and the first voltage signal, the second voltage difference value is a voltage difference value between the third checking voltage and the third voltage signal, and the third voltage difference value is a voltage difference value between the fifth checking voltage and the fifth voltage signal;
the preset condition is that the ratio of the first voltage difference value to the second voltage difference value is not less than 90%, and the ratio of the second voltage difference value to the third voltage difference value is not less than 90%.
5. The charging method of claim 4, wherein the charging states comprise a first charging state, a second charging state, a third charging state, and a fourth charging state.
6. The charging method of claim 4, wherein the step of matching the voltage signal to the state of charge comprises matching the first voltage signal and the second voltage signal to the first state of charge, matching the third voltage signal to the second state of charge, matching the fourth voltage signal and the fifth voltage signal to the third state of charge, and matching the fifth voltage signal and the sixth voltage signal to the fourth state of charge.
7. The charging method according to claim 4, wherein the first verification voltage is a 12V voltage signal, the second verification voltage is a +12V/-12V pulse width modulation signal, the third verification voltage is a 9V voltage signal, the fourth verification voltage is a +9V/-12V pulse width modulation signal, the fifth verification voltage is a 6V voltage signal, and the sixth verification voltage is a +6V/-12V pulse width modulation signal.
8. A computer device, comprising:
a memory for storing a computer program; and
a processor for executing the computer program to perform the method of any one of claims 4 to 7.
9. A storage medium storing a computer program which, when executed, implements the charging method of any one of claims 4 to 7.
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| CN112644321B (en) * | 2020-12-14 | 2022-04-19 | 国创移动能源创新中心(江苏)有限公司 | Voltage sampling correction method |
| CN118124439B (en) * | 2024-05-07 | 2024-07-19 | 东莞市奥海科技股份有限公司 | Charging control method and device for charging pile, controller and charging pile |
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| CN104215810B (en) * | 2013-06-04 | 2017-06-20 | 东莞钜威动力技术有限公司 | Electric automobile conduction type charging guide signal detection circuit and system |
| CN104618122A (en) * | 2013-11-04 | 2015-05-13 | 中兴通讯股份有限公司 | Method for signal feedback and apparatus thereof, method for power supply and equipment thereof, and method for controlling and system thereof |
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