Charging device, charging lid control device, charging system, and related method

Abstract

A charging device, a charging lid control device, a charging system, and a control method are provided. When a start command is received, the charging device (100) generates a first control command, performs an encryption process on the first control command, and transmits the encrypted first control command to the charging lid control device. The charging lid control device receives the first control command, performs a decryption process on the first control command, verifies identity information in the first control command, and drives the charging lid so as to open if the identity information verification is successful. The charging lid can be automatically controlled so as to open automatically by encrypted communication between the charging device (100) and the charging lid control device (200), which eliminates the troublesome operation of manually operating the charging lid and is simpler and faster. Before controlling the charging lid to open, the charging lid control device (200) performs identity identification on the charging device, and can open the charging lid only if the identity verification is successful, thereby avoiding safety problems caused by any charging device recklessly charging an electric vehicle.

Description

Technical Field

[0001] This application claims the priority of a Chinese patent application with an application number of 202110451756.8 and an invention title of "Charging Equipment, Charging Lid Control Equipment, Charging System and Related Method", which was filed on April 26, 2021, and all of its contents are incorporated herein by reference.

[0002] The present invention relates to the technical field of automobiles, and particularly to charging equipment, charging lid control equipment, charging systems and related methods for electric vehicles.

Background Art

[0003] With the rapid development of electric vehicles, the market share of electric vehicles in the automotive field is increasing. Electric vehicles have characteristics such as no pollution, low noise, and high energy efficiency.

[0004] Electric vehicles usually use an in-vehicle power source as the power source and use a motor to drive the vehicle instead of a fuel engine. Currently, the most widely used power source for electric vehicles is a storage battery, and a charging lid is usually provided at the charging port of the storage battery for protection. When charging the battery, the charging lid needs to be manually opened, and after charging is completed, the charging lid needs to be closed again. Such a method is not only complicated to operate, but also unable to select the charging equipment by itself. Charging the vehicle with unsuitable charging equipment may cause serious safety problems to the vehicle's power source.

Summary of the Invention

[0005] Embodiments of the present invention provide charging equipment, charging lid control equipment, charging systems and related methods for electric vehicles to control the automatic opening and closing of the charging lid of electric vehicles and improve the charging safety of electric vehicles.

[0006] In a first aspect, an embodiment of the present invention is a charging device for an electric vehicle, including a response controller, an encoder, and a first signal transmitter. When the response controller receives a startup command, it sends a first control command including identity information for identifying the charging device to the encoder. The encoder receives the first control command, encrypts the first control command, and sends the encrypted first control command to the first signal transmitter. The first signal transmitter sends the encrypted first control command to the electric vehicle so that the charging lid of the electric vehicle is in an open state, thereby providing a charging device.

[0007] The electric vehicle verifies the identity information in the first control command sent from the charging device. If the verification is successful, it controls the charging lid to be automatically opened. The control command sent from the charging device is an encrypted message, and the duplication rate of the expression form of the encrypted control command is extremely low each time. In this way, it is possible to avoid copying the control command, thereby improving the security of information interaction between the charging device and the electric vehicle.

[0008] In some embodiments of the present invention, the charging device further includes a first signal receiver. The first signal receiver receives a wake-up signal sent from the electric vehicle and sends the wake-up signal to the response controller. The wake-up signal includes an activation code for activating the response controller and is for activating the charging device to communicate with the electric vehicle. The response controller receives and verifies the wake-up signal. If the verification of the activation code in the wake-up signal is successful, it sends a first control command to the encoder.

[0009] By adopting an activation code verification mechanism to wake up the charging device, it is possible to effectively avoid interference from signals of other devices to the charging device and prevent the charging device from being accidentally activated.

[0010] In some embodiments of the present invention, when the response controller fails to receive the wake-up signal, it stops sending the first control command to the electric vehicle so that the charging lid of the electric vehicle is in a closed state.

[0011] When the electric vehicle fails to receive the first control command, it automatically closes the charging lid, thereby simplifying the communication flow and making the control more convenient.

[0012] In some embodiments of the present invention, when the response controller fails to receive the wake-up signal, it sends a second control command including identity information for identifying the charging device to the encoder. The encoder receives the second control command, encrypts the second control command, and sends the encrypted second control command to the first signal transmitter. The first signal transmitter sends the encrypted second control command to the electric vehicle so that the charging lid of the electric vehicle is in a closed state.

[0013] By adopting the encrypted communication method, when charging the electric vehicle, the charging device automatically opens the charging lid by sending the first control command, and after charging is completed, it automatically closes the charging lid by sending the second control command. This prevents interference from other signals, avoids malfunction of the charging lid, and improves the communication security of the charging device.

[0014] In some embodiments of the present invention, any one of a low-frequency signal, a radio frequency signal, a Bluetooth (registered trademark) signal, a mobile communication signal, a WIFI (registered trademark) signal, or an infrared signal may be applied to the wake-up signal, the first control signal, and the second control signal. As long as the communication flow of the charging device can be completed, the form of the carrier signal may be flexibly set according to actual needs.

[0015] In some embodiments of the present invention, a low-frequency signal is applied to the wake-up signal, and radio frequency signals are applied to the first control command and the second control command. The low-frequency signal has a slow change, a smooth waveform, and is suitable for short-range communication. The radio frequency signal is suitable when a long read / write distance and a high read / write speed are required. By applying a low-frequency signal to the wake-up signal and radio frequency signals to the first control command and the second control command, the application requirements are better met.

[0016] In some embodiments of the present invention, the frequency of the wake-up signal is 30 KHz to 300 KHz, the frequency of the first control command is 300 KHz to 300 GHz, and the frequency of the second control command is 300 KHz to 300 GHz.

[0017] In some embodiments of the present invention, a three-dimensional low-frequency antenna (triaxial low-frequency antenna) is provided for the first signal receiver. The three-dimensional low-frequency antenna can effectively receive the wake-up signal, and by superimposing the energy in the three-dimensional direction, it ensures that the charging device can detect the same electric field strength at any angle, and effectively prevents the occurrence of a situation where the signal cannot be received due to interference.

[0018] In a second aspect, an embodiment of the present invention is a charging lid control device for an electric vehicle, including a second signal receiver, a decoder, a processor, and a motor driver. The motor driver is connected to a charging lid motor of the electric vehicle, and the charging lid motor is driven to open and close the charging lid. The second signal receiver receives a first control command including identity information for identifying the charging device, which is transmitted from the charging device, and transmits the first control command to the decoder. The decoder decodes the first control command and transmits the decoded first control command to the processor. The processor receives the decoded first control command, verifies the identity information in the first control command, and when the verification of the identity information is successful, transmits a lid opening command for instructing to open the charging lid to the motor driver. The motor driver drives the charging lid motor based on the lid opening command so that the charging lid is in an open state. When the verification of the identity information fails, the processor transmits a lid closing command for instructing to close the charging lid to the motor driver, and the motor driver drives the charging lid motor based on the lid closing command so that the charging lid is in a closed state, thereby providing a charging lid control device.

[0019] When charging of the electric vehicle is required, the charging lid control device receives a first control command transmitted from the charging device. The first control command is an encrypted message, and the charging lid control device can decrypt it, thereby increasing the communication security between the charging device and the charging lid control device. The charging lid control device further verifies the identity information in the first control command. When the verification of the identity information is successful, it indicates that the current charging device is a registered safe device. At this time, the charging lid control device automatically opens the charging lid. When the verification of the identity information fails, it indicates that the current charging device is not registered and its safety cannot be guaranteed. At this time, the charging lid control device controls to keep the charging lid in a closed state, thereby improving the charging safety of the electric vehicle.

[0020] In some embodiments of the present invention, the charging lid control device further includes a second signal transmitter, and the second signal transmitter includes an activation code for activating the charging device when charging of the electric vehicle is required, and transmits a wake-up signal for activating the charging device and communicating with the electric vehicle to the vicinity of the electric vehicle.

[0021] The charging lid control device may further actively activate the charging device. When the charging device enters the coverage range of the wake-up signal, the charging device can receive the wake-up signal, and enters the operating state by verifying the activation code in the wake-up signal. By adopting the activation code verification mechanism, the influence of signals transmitted from other devices to the charging device can be avoided, the malfunction of the charging device can be prevented, and the communication between the charging device and the charging lid control device can be made safer and more effective.

[0022] In some embodiments of the present invention, the first control command further includes first instruction information for instructing to open the charging lid. The processor verifies the identity information in the first control command. When the verification of the identity information is successful, based on the first instruction information, a lid opening command for instructing to open the charging lid is transmitted to the motor driver.

[0023] By adding command information to the first control command, the charging lid control device executes corresponding operations based on the command, and effectively prevents malfunction.

[0024] In some embodiments of the present invention, when the processor fails to receive the first control command, a lid closing command for instructing to close the charging lid is transmitted to the motor driver, and the motor driver drives the charging lid motor based on the lid closing command so that the charging lid is in the closed state.

[0025] When it becomes impossible to receive the first control command, by directly controlling the charging lid to be closed, the communication flow between the charging device and the charging lid control device is simplified and becomes more convenient.

[0026] In some embodiments of the present invention, the second signal receiver receives a second control command including identity information for identifying the charging device and second instruction information for instructing to close the charging lid, which is transmitted from the charging device, transmits the second control command to a decoder, the decoder decrypts the second control command, transmits the decrypted second control command to a processor, the processor receives the decrypted second control command, verifies the identity information in the second control command, and when the verification of the identity information is successful, based on the second instruction information, transmits a lid closing command for instructing to close the charging lid to a motor driver, and the motor driver drives the charging lid motor based on the lid closing command so that the charging lid is in a closed state.

[0027] By controlling the charging lid to be closed using the second control command, interference from other signals can be prevented, malfunction of the charging lid can be avoided, and the communication security between the charging device and the charging lid control device can be improved.

[0028] In some embodiments of the present invention, any one of a low-frequency signal, a radio frequency signal, a Bluetooth (registered trademark) signal, a mobile communication signal, a WIFI signal, or an infrared signal may be applied to the wake-up signal, the first control signal, and the second control signal. It is only necessary to be able to complete the communication flow of the charging device, and the form of the carrier signal may be flexibly set according to actual needs.

[0029] In some embodiments of the present invention, a low-frequency signal is applied to the wake-up signal, and radio frequency signals are applied to the first control command and the second control command. The low-frequency signal has slow changes, a smooth waveform, and is suitable for short-distance communication, while the radio frequency signal is suitable when a long read / write distance and high read / write speed are required. By applying a low-frequency signal to the wake-up signal and radio frequency signals to the first control command and the second control command, the application requirements are better met.

[0030] In some embodiments of the present invention, the frequency of the wake-up signal is 30 KHz to 300 KHz, the frequency of the first control command is 300 KHz to 300 GHz, and the frequency of the second control command is 300 KHz to 300 GHz.

[0031] In some embodiments of the present invention, a radio frequency antenna is provided for the second signal receiver. By adding the radio frequency antenna, it is possible to avoid the situation where the charging lid control device cannot receive the first control signal or the second control signal.

[0032] In a third aspect, an embodiment of the present invention is an electric vehicle, including any of the above charging lid control devices, where the charging lid control device is connected to a charging lid motor of the electric vehicle, and the charging lid motor drives to open and close the charging lid, providing an electric vehicle. The charging lid control device may be provided at a mechanical connection location near the charging port of the electric vehicle, and the charging lid control device automatically controls the opening and closing of the charging lid by communicating with the charging device.

[0033] In a fourth aspect, an embodiment of the present invention is a method for controlling a charging device of an electric vehicle, including generating a first control command including identity information for identifying the charging device when the charging device receives a start command, performing an encryption process on the first control command, and transmitting the encrypted first control command to the electric vehicle.

[0034] The electric vehicle verifies the identity information in the first control command transmitted from the charging device, and if the verification is successful, controls the charging lid to be automatically opened. The control command transmitted from the charging device is an encrypted message, and the duplication rate of the expression form of the encrypted control command each time is extremely low. In this way, by avoiding the copying of the control command, the security of the information interaction between the charging device and the electric vehicle is improved.

[0035] In some embodiments of the present invention, when receiving a start command, generating the first control command means that when receiving an activation code for activating a response controller and a wake-up signal for activating the charging device to communicate with the electric vehicle, both of which are transmitted from the electric vehicle, verifying the wake-up signal, and if the verification of the activation code in the wake-up signal is successful, generating the first control command.

[0036] By adopting an activation code verification mechanism to wake up the charging device, interference of signals from other devices to the charging device can be effectively avoided, and misactivation of the charging device can be prevented.

[0037] In some embodiments of the present invention, when the charging device is unable to receive the wake-up signal, it stops transmitting the first control command to the electric vehicle so that the charging lid of the electric vehicle is in a closed state.

[0038] When the electric vehicle is unable to receive the first control command, it automatically closes the charging lid, thereby simplifying the communication flow and making the control more convenient.

[0039] In some embodiments of the present invention, when the charging device is unable to receive the wake-up signal, it generates a second control command including identity information for identifying the charging device, performs an encryption process on the second control command, and transmits the encrypted second control command to the electric vehicle so that the charging lid of the electric vehicle is in a closed state.

[0040] When charging an electric vehicle, the charging device adopts an encrypted communication method. When charging the electric vehicle, it sends a first control command to automatically open the charging lid. After charging is completed, it sends a second control command to automatically close the charging lid. This prevents interference from other signals, avoids malfunction of the charging lid, and improves the communication security of the charging device.

[0041] In a fifth aspect, an embodiment of the present invention is a control method for a charging lid control device of an electric vehicle. The charging lid control device receives a first control command including identity information for identifying the charging device, which is sent from the charging device, performs a decryption process on the first control command, verifies the identity information in the first control command, and when the verification of the identity information is successful, generates a lid opening command for instructing to open the charging lid and drives the charging lid motor so that the charging lid is in an open state. When the verification of the identity information fails, generates a lid closing command for instructing to close the charging lid in order to drive the charging lid motor so that the charging lid is in a closed state.

[0042] When the electric vehicle needs to be charged, the charging lid control device receives a first control command sent from the charging device. The first control command is an encrypted message, and the charging lid control device can decrypt it, thereby increasing the communication security between the charging device and the charging lid control device. The charging lid control device further verifies the identity information in the first control command. When the verification of the identity information is successful, it indicates that the current charging device is a registered safe device. At this time, the charging lid control device automatically opens the charging lid. When the verification of the identity information fails, it indicates that the current charging device is not registered and its safety cannot be guaranteed. At this time, the charging lid control device controls to keep the charging lid in a closed state. This improves the charging safety of the electric vehicle.

[0043] In some embodiments of the present invention, the first control command further includes first instruction information for instructing to open the charging lid. When the verification of the identity information is successful, a lid opening command for instructing to open the charging lid is generated based on the first instruction information.

[0044] By adding command information to the first control command, the charging lid control device executes corresponding operations based on the command, effectively preventing malfunction.

[0045] In some embodiments of the present invention, when the charging lid control device fails to receive the first control command transmitted from the charging device, in order to drive the charging lid motor so that the charging lid is in a closed state, a lid closing command for instructing to close the charging lid is generated.

[0046] By directly controlling the charging lid to be closed when the first control command cannot be received, the communication flow between the charging device and the charging lid control device is simplified and becomes more convenient.

[0047] In some embodiments of the present invention, the charging lid control device receives a second control command including identity information for identifying the charging device and second instruction information for instructing to close the charging lid, which is transmitted from the charging device, performs a decryption process on the second control command, verifies the identity information in the second control command, and when the verification of the identity information is successful, generates a lid closing command for instructing to close the charging lid in order to drive the charging lid motor so that the charging lid is in a closed state.

[0048] By controlling the charging lid to be closed using the second control command, interference from other signals can be prevented, malfunction of the charging lid can be avoided, and the communication security between the charging device and the charging lid control device can be improved.

[0049] In some embodiments of the present invention, before receiving the first control command transmitted from the charging device, when charging of the electric vehicle is required, an activation code for activating the charging device is included and a wake-up signal for activating the charging device to communicate with the electric vehicle is transmitted to the vicinity of the electric vehicle.

[0050] The charging lid control device may further actively activate the charging device. When the charging device enters the coverage range of the wake-up signal, the charging device can receive the wake-up signal, and enters the operating state by verifying the activation code in the wake-up signal. By adopting the activation code verification mechanism, the influence of signals transmitted from other devices to the charging device can be avoided, the misactivation of the charging device can be prevented, and the communication between the charging device and the charging lid control device can be made safer and more effective.

[0051] In a sixth aspect, an embodiment of the present invention is a method for controlling a charging lid of an electric vehicle, including: when the charging device receives a start command, generating a first control command including identity information for identifying the charging device, performing an encryption process on the first control command, and transmitting the encrypted first control command to the charging lid control device; the charging lid control device receiving the first control command, performing a decryption process on the first control command, and verifying the identity information in the first control command; and when the verification of the identity information is successful, generating a lid opening command for instructing to open the charging lid and driving a charging lid motor so that the charging lid is in an open state.

[0052] Through the encrypted communication between the charging device and the charging lid control device, the charging lid can be automatically controlled to open automatically, saving the troublesome operation of manually operating the charging lid, eliminating the need to contact the vehicle body, and being more convenient and rapid. Also, before controlling the charging lid to open, the charging lid control device performs identity identification on the charging device, and can only open the charging lid when the identity verification is successful. In this way, it is possible to avoid safety problems caused by any charging device charging the electric vehicle arbitrarily.

[0053] In a seventh aspect, an embodiment of the present invention is a charging system for an electric vehicle, including any one of the above charging devices and any one of the above charging lid control devices. When the charging device receives a start command, it generates a first control command including identity information for identifying the charging device, performs an encryption process on the first control command, and transmits the encrypted first control command to the charging lid control device. The charging lid control device receives the first control command, performs a decryption process on the first control command, verifies the identity information in the first control command, and when the verification of the identity information is successful, generates a lid opening command for instructing to open the charging lid and drives the charging lid motor so that the charging lid is in an open state, providing a charging system.

[0054] Through the encrypted communication between the charging device and the charging lid control device, the charging lid can be automatically controlled to open automatically, saving the troublesome operation of manually operating the charging lid, eliminating the need to contact the vehicle body, and being more convenient and rapid. Also, before controlling the charging lid to open, the charging lid control device performs identity identification on the charging device, and can only open the charging lid when the identity verification is successful. In this way, it is possible to avoid safety problems caused by any charging device charging the electric vehicle arbitrarily.

[0055] In some embodiments of the present invention, when charging of an electric vehicle is required, the charging lid control device includes an activation code for activating the charging device and transmits a wake-up signal for activating the charging device to communicate with the electric vehicle to the vicinity of the electric vehicle. The charging device receives and verifies the wake-up signal, and when the verification of the activation code in the wake-up signal is successful, a first control command is generated.

[0056] The charging lid control device may further actively activate the charging device. When the charging device enters the coverage range of the wake-up signal, the charging device can receive the wake-up signal and enters an operating state by verifying the activation code in the wake-up signal. By adopting the activation code verification mechanism, the influence of signals transmitted from other devices to the charging device can be avoided, accidental activation of the charging device can be prevented, and communication between the charging device and the charging lid control device can be made safer and more effective.

[0057] In some embodiments of the present invention, the first control command further includes first instruction information for instructing to open the charging lid. The charging lid control device verifies the identity information in the first control command. When the verification of the identity information is successful, based on the first instruction information, a lid opening command for instructing to open the charging lid is generated to drive the charging lid motor so that the charging lid is in an open state.

[0058] By adding command information to the first control command, the charging lid control device executes corresponding operations based on the command, effectively preventing malfunction.

[0059] In some embodiments of the present invention, when the charging device can no longer receive the wake-up signal, it stops transmitting the first control command. When the charging lid control device can no longer receive the first control command, it generates a lid closing command for instructing to close the charging lid to drive the charging lid motor so that the charging lid is in a closed state.

[0060] When the charging lid control device can no longer receive the first control command, it directly controls the charging lid to be closed, thereby simplifying the communication flow between the charging device and the charging lid control device and making it more convenient.

[0061] In some embodiments of the present invention, when the charging device can no longer receive the wake-up signal, it generates a second control command including identity information for identifying the charging device, performs an encryption process on the second control command, and transmits the encrypted second control command to the charging lid control device. The charging lid control device receives the second control command, performs a decryption process on the second control command, verifies the identity information in the second control command, and when the verification of the identity information is successful, generates a lid closing command for instructing the charging lid to close in order to drive the charging lid motor so that the charging lid is in a closed state.

[0062] By adopting the method of encrypted communication, when charging an electric vehicle, the charging device automatically opens the charging lid by transmitting the first control command, and after charging is completed, automatically closes the charging lid by transmitting the second control command. This prevents interference from other signals, avoids misoperation of the charging lid, and improves the communication security of the charging device.

[0063] To more clearly explain the technical solutions of the embodiments of the present invention, hereinafter, the drawings necessary for the embodiments of the present invention will be briefly introduced. Obviously, the drawings introduced below are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings from these drawings without creative labor.

Brief Description of the Drawings

[0064]

Figure 1

Figure 2

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Figure 7

Description of reference numerals

[0065] 100... Charging device, 200... Charging lid control device, 11... Response controller, 12... Encoder, 13... First signal transmitter, 14... First signal receiver, 15... 3D low-frequency antenna, 21... Second signal receiver, 22... Decoder, 23... Processor, 24... Motor driver, 25... Second signal transmitter, 26... Low-frequency antenna, 27... Radio frequency antenna.

Embodiments for carrying out the invention

[0066] To make the above objects, features and advantages of the present invention clearer and easier to understand, the present invention will be further described below with reference to the drawings and embodiments. However, the exemplary embodiments can be implemented in various forms and should not be understood as being limited to the embodiments described in this specification. On the contrary, by providing these embodiments, the present invention becomes more comprehensive and complete, and the concept of the exemplary embodiments is fully communicated to those skilled in the art. The same reference numerals in the drawings represent the same or similar structures, so redundant descriptions thereof are omitted. The words expressing the positions and directions described in the present invention are all explained with the drawings as examples, but can be changed as needed, and any changed ones are included in the protection scope of the present invention. The drawings of the present invention are only for scheming the relative positional relationship and do not represent the actual ratio.

[0067] An electric vehicle is a vehicle that uses a battery pack as a power source and is driven by converting electrical energy into mechanical energy with a motor. The electric drive and control system of an electric vehicle is the core of the electric vehicle and also the biggest difference from an internal combustion engine vehicle. Other devices are basically the same as those of an internal combustion engine vehicle. The electric drive and control system consists of a drive motor, a power source, a speed control device for the motor, etc.

[0068] An electric vehicle usually has a charging gun holder provided at a position on the main body or the front end. The charging gun holder is connected to the battery in the vehicle. When the charging gun head at the charging stand is inserted into the charging gun holder, the vehicle can be charged. To protect the charging gun holder, a charging lid is usually provided on the charging gun holder. When the vehicle needs to be charged, the charging lid is manually opened, and after charging is completed, the charging lid is manually closed again. Such a method is not only complicated in operation but also unable to select the charging equipment by itself. Charging the vehicle with unsuitable charging equipment may cause serious safety problems to the vehicle's power source.

[0069] In view of this, the embodiments of the present invention provide a charging device, a charging lid control device, and an electric vehicle for automatically controlling the opening and closing of the charging lid and improving the charging safety of the electric vehicle.

[0070] The charging device may be a connector connected to the electric vehicle when charging the electric vehicle, or may be a power source for directly charging the electric vehicle such as a charging stand, a device such as a mobile power source, etc., and is not limited here. The charging lid control device is usually mounted near the charging port of the electric vehicle, for example, on the mechanical connection piece of the charging port. The charging lid control device is connected to the charging lid motor and can drive and control the charging lid motor so that the charging lid is opened and closed.

[0071] There is information interaction between the charging device and the charging lid control device in the embodiments of the present invention. The charging lid control device performs identity identification on the charging device, and only when the identity verification is successful, the charging lid control device controls the charging lid of the electric vehicle to be opened, thereby greatly improving the charging safety of the electric vehicle.

[0072] Figure 1 is a schematic structural diagram of a charging device according to an embodiment of the present invention.

[0073] As shown in Figure 1, the charging device 100 includes a response controller 11, an encoder 12, and a first signal transmitter 13.

[0074] The response controller 11 is a control component in the charging device 100. When the response controller 11 enters the operating state, it generates a control command for instructing to open the charging lid. The control command is encrypted by the encoder 12 before being transmitted and is transmitted to the electric vehicle by the first signal transmitter 13.

[0075] The control command transmitted from the charging device 100 is an encrypted message, and the duplication rate of the expression form of the encrypted control command each time is extremely low. In this way, by avoiding copying of the control command, the security of the information interaction between the charging device 100 and the electric vehicle is improved.

[0076] Figure 2 is a schematic structural diagram of a charging lid control device according to an embodiment of the present invention.

[0077] As shown in Figure 2, the charging lid control device 200 includes a second signal receiver 21, a decoder 22, a processor 23, and a motor driver 24. Here, the motor driver 24 is connected to the charging lid motor of the electric vehicle, and the charging lid motor drives to open and close the charging lid.

[0078] The processor 23 is a control component in the charging lid control device 200. The second signal receiver 21 is used to receive the control command transmitted from the charging device 100. The decoder 22 performs decoding processing on the control command. The processor verifies the information in the received control command and performs corresponding control on the motor driver 24 based on the information verification result.

[0079] In a specific implementation, when the processor 23 successfully verifies the information in the control command, it sends a command for instructing to open the charging lid to the motor driver 24, and controls the charging lid motor to open the charging lid by driving the motor driver 24.

[0080] When charging an electric vehicle, by automatically controlling the charging lid control device 200 to open the charging lid, the troublesome operation of manually operating the charging lid is omitted, there is no need to contact the vehicle body, and it is more convenient and rapid. Also, before controlling the charging lid to open, the charging lid control device performs identity identification on the charging device, and can open the charging lid only when the identity verification is successful. In this way, safety problems caused by any charging device charging the electric vehicle randomly can be avoided.

[0081] As a prerequisite for the above charging device and charging lid control device according to the embodiment of the present invention to realize the above information interaction, the charging device has been identity registered before charging the electric vehicle, and the identity information of the registered charging device is stored in the processor of the charging lid control device. Then, when charging the electric vehicle, it triggers the identity identification of the charging lid control device for the charging device, and performs corresponding control on the charging lid only after the identity verification is completed.

[0082] Specifically, regarding the charging device 100, when the response controller 11 receives a startup command, it generates a first control command that includes identity information for identifying the charging device and is used to instruct the electric vehicle to open the charging lid, and transmits the command to the encoder 12.

[0083] The encoder 12 receives the first control command, encrypts the first control command, and transmits the encrypted first control command to the first signal transmitter 13. The first signal transmitter 13 transmits the encrypted first control command to the charging lid control device 200 provided in the electric vehicle to instruct the electric vehicle to open the charging lid.

[0084] Regarding the charging lid control device 200, the second signal receiver 21 receives the first control command transmitted from the charging device 100 and transmits the first control command to the decoder 22. The decoder 22 decrypts the first control command and transmits the decrypted first control command to the processor 23. The processor 23 receives the decrypted first control command, verifies the identity information in the first control command, and when the verification of the identity information is successful, transmits a lid opening command for instructing to open the charging lid to the motor driver 24. Based on the lid opening command, the motor driver 24 drives the charging lid motor so that the charging lid is in an open state.

[0085] In a specific implementation, the charging device 100 may be started in various ways. For example, a switch may be provided on the charging device 100. The switch may be a physical button on the charging device. When the user brings the charging device close to the charging port of the electric vehicle, the button can control whether the charging device enters the operating state. When the switch on the charging device 100 is turned on, the response controller 11 is started and enters the operating state. When the switch on the charging device 100 is turned off, the response controller 11 enters the sleep state.

[0086] After the charging device 100 is activated, the response controller 11 generates a first control command carrying the identity information of the charging device. After the encoder 12 encrypts the first control command, it is transmitted by the first signal transmitter 13 to the charging lid control device 200 of the electric vehicle.

[0087] The second signal receiver 21 in the charging lid control device 200 receives the first control command, and the decoder 22 performs decryption processing on it to obtain the identity information of the charging device. Further, the processor 23 verifies the identity information. The processor 23 matches the obtained identity information with the registered identity information stored locally. If the matching is successful, it indicates that the current charging device 100 is a registered safe device. At this time, the processor 23 sends a lid opening command to the motor driver 24, and the motor driver 24 drives the charging lid motor to open the charging lid.

[0088] During the charging of the electric vehicle, the charging device 100 continuously sends the first control command to the charging lid control device 200. If the charging lid control device successfully verifies the identity information, it maintains the charging lid in an open state.

[0089] In another application scenario, if the processor 23 in the charging lid control device 200 fails to verify the identity information in the first control command, the processor 23 sends a lid closing command to the motor driver 24 to instruct the charging lid to be closed, and the motor driver 24 drives the charging lid motor based on the lid closing command to close the charging lid.

[0090] The processor 23 matches the acquired identity information with the registered identity information stored locally. If the matching fails, it indicates that the current charging device 100 is not registered, and it is impossible to determine whether it is a safe device. At this time, the processor 23 sends a lid closing command to the motor driver 24, and the motor driver 24 drives the charging lid motor so that the charging lid is in the closed state. This improves the charging safety of the electric vehicle.

[0091] In another feasible embodiment, when the electric vehicle needs to be charged, the charging lid control device 200 may actively send a wake-up signal to the surrounding charging device 100 to wake up the charging device 100 and put it into the operating state, saving the step of manually operating the charging device 100.

[0092] Specifically, referring to FIGS. 3 and 4, FIG. 3 is a second structural schematic diagram of the charging lid control device according to an embodiment of the present invention, and FIG. 4 is a second structural schematic diagram of the charging device according to an embodiment of the present invention.

[0093] As shown in FIG. 3, when the electric vehicle needs to be charged, the charging lid control device 200 further includes a second signal transmitter 25 that transmits a wake-up signal to the periphery of the electric vehicle.

[0094] As shown in FIG. 4, the charging device 100 further includes a first signal receiver 14 that can activate the response controller 11 by receiving the wake-up signal transmitted from the charging lid control device 200.

[0095] Specifically, when the electric vehicle needs to be charged and the electric vehicle approaches the charging device, the charging lid control device 200 controls the second signal transmitter 25 to send a wake-up signal including an activation code for activating the charging device to the nearby charging device 100.

[0096] When the charging device 100 enters the coverage range of the wake-up signal, the first signal receiver 14 can receive the wake-up signal, and the first signal receiver 14 transmits the received wake-up signal to the response controller 11. The response controller 11 verifies the activation code in the wake-up signal. If the verification is successful, the response controller 11 is activated; if the verification fails, the response controller 11 enters the sleep state.

[0097] By adopting the activation code verification mechanism, it is possible to avoid the influence of signals transmitted from other devices to the charging device 100, prevent the misactivation of the charging device 100, and make the communication between the charging device 100 and the charging lid control device 200 safer and more effective.

[0098] After the charging device 100 successfully verifies the wake-up signal transmitted from the charging lid control device 200, the response controller 11 is activated and continues to execute related steps such as generating the first control command, encrypting and transmitting the first control command, and communicating with the charging lid control device 200 to control the charging lid to be opened.

[0099] The above-mentioned first control command includes, in addition to the identity information of the charging device 100, first instruction information for instructing to open the charging lid.

[0100] The decoder 22 in the charging lid control device 200 decrypts the first control command and then simultaneously obtains the identity information of the charging device and the first instruction information. The processor 23 verifies the identity information in the first control command. If the verification is successful, the processor 23 transmits a lid-opening command to the motor driver 24 according to the instruction of the first instruction information, and further drives the charging lid motor to open the charging lid by the motor driver 24.

[0101] After the charging of the electric vehicle is completed, the charging lid control device 200 in the embodiment of the present invention may further control the charging lid to be automatically closed.

[0102] In one possible embodiment, when the response controller 11 in the charging device 100 receives a close command, the generation of the first control command is stopped. In this case, the charging device 100 stops transmitting the first control command to the charging lid control device 200.

[0103] When the charging lid control device 200 can no longer receive the first control command, the processor 23 transmits a lid close command for instructing to close the charging lid to the motor driver 24. The motor driver 24 drives the charging lid motor to close the charging lid according to the instruction of the lid close command. Thereby, the automatic closing of the charging lid is realized.

[0104] In another possible embodiment, regarding the charging device 100, when the response controller 11 in the charging device receives a close command, it generates a second control command including identity information for identifying the charging device and for instructing the electric vehicle to close the charging lid, and transmits the second control command to the encoder 12. The encoder 12 receives the second control command, encrypts the second control command, and transmits the encrypted second control command to the first signal transmitter 13. The first signal transmitter 13 transmits the encrypted second control command to the charging lid control device provided in the electric vehicle to instruct the electric vehicle to close the charging lid.

[0105] Regarding the charging lid control device 200, the second signal receiver 21 receives the second control command transmitted from the charging device 100 and transmits the second control command to the decoder 22. The decoder 22 decrypts the second control command and transmits the decrypted second control command to the processor 23. The processor 23 receives the decrypted second control command, verifies the identity information in the second control command. When the verification of the identity information is successful, according to the instruction of the second instruction information, it transmits a lid close command to the motor driver. Upon receiving an instruction to close the lid, the motor driver 24 drives the charging lid motor to close the charging lid.

[0106] By adopting a method in which the charging device 100 and the charging lid control device 200 perform encrypted communication, when charging an electric vehicle, the charging lid is automatically opened by sending a first control instruction, and after charging is completed, the charging lid is automatically closed by sending a second control instruction. This prevents interference from other signals, avoids malfunction of the charging lid, and improves the communication security between the charging device 100 and the charging lid control device 200.

[0107] Various methods may be adopted for the response controller 11 in the charging device 100 to send a closing instruction. In one possible implementation, a switch is provided in the charging device 100, and after charging is completed, the switch is turned off to instruct the response controller 11 to close. In another possible implementation, the operating state of the response controller 11 may be instructed according to whether a wake-up signal sent from the charging lid control device 200 can be received.

[0108] In actual application, the charging lid control device 200 is attached near the charging port. When the electric vehicle needs to be charged, it enters the charging station, and the charging lid control device 200 continuously sends a wake-up signal to the surrounding area. As the distance between the electric vehicle and the charging device 100 gradually decreases, the charging device can receive the wake-up signal. When the wake-up signal is received, the response controller 11 can be activated to enter the operating state. After the charging of the electric vehicle is completed, the electric vehicle exits the charging station. As the distance between the electric vehicle and the charging device 100 gradually increases, the charging device 100 can no longer receive the wake-up signal sent from the charging lid control device 200. At this time, the charging device 100 considers that the charging is completed and can instruct the response controller 11 to close.

[0109] In this case, during specific implementation, when the response controller 11 in the charging device 100 fails to receive the wake-up signal, the charging lid control device may select to stop sending the first control command so that the charging lid is automatically closed, or the response controller 11 may generate a second control command and send it to the charging lid control device, causing the charging lid control device to close the charging lid under the control of the second control command.

[0110] Any of the above wake-up signal, first control command, and second control command may be one of a low-frequency signal, radio frequency signal, Bluetooth (registered trademark) signal, mobile communication signal, WIFI signal, or infrared signal, and is not limited here.

[0111] The frequency band of the low-frequency signal is 30KHz to 300KHz. The low-frequency signal has slow changes, a smooth waveform, and is suitable for short-distance and low-cost applications. The general frequencies of the low-frequency signal are 125kHz and 134.2kHz.

[0112] The frequency band of the radio frequency signal is 300kHz to 300GHz. The radio frequency signal is suitable when long read / write distances and high read / write speeds are required. The general frequencies of the radio frequency signal are 433MHz, 915MHz, 2.45GHz, 5.8GHz, etc.

[0113] Considering the application of the embodiments of the present invention to the scenario of charging an electric vehicle, a low-frequency signal may be applied to the wake-up signal, and a radio frequency signal may be applied to the first control command and the second control command. The frequency of the wake-up signal is 30KHz to 300KHz, for example, it may be 125KHz, and the frequencies of the first control command and the second control command are 300KHz to 300GHz, for example, it may be 433MHz.

[0114] When a low-frequency signal is applied to the wake-up signal and a radio frequency signal is applied to the first control command and the second control command, as shown in FIG. 3, the second signal transmitter 25 in the charging lid control device 200 is used to transmit the wake-up signal, that is, the low-frequency signal. A low-frequency antenna 26 may be provided in the charging lid control device and connected to the second signal transmitter 25. The second signal receiver 21 is used to receive the first control command and the second control command, that is, the radio frequency signal. A radio frequency antenna 27 may be provided for the second signal receiver 21. Correspondingly, as shown in FIG. 4, the first signal receiver 14 in the charging device 100 is used to receive the wake-up signal, that is, the low-frequency signal. In this case, a three-dimensional low-frequency antenna 15 for receiving the intensity of the three-dimensional energy field for detecting the external space may be provided for the first signal receiver 14. By superimposing the energy in the three-dimensional direction, it is ensured that the first signal receiver 14 in the charging device 100 can detect the same field intensity at any angle, and effectively prevents the occurrence of a situation where the signal cannot be received due to interference.

[0115] On the other hand, the embodiments of the present invention further provide a control method for a charging device and a charging lid control device.

[0116] FIG. 5 is a flowchart of a control method for a charging device according to an embodiment of the present invention.

[0117] As shown in FIG. 5, the control method of the charging device includes: S11: When a start command is received, generating a first control command; S12: Performing an encryption process on the first control command; S13: Transmitting the encrypted first control command to the electric vehicle.

[0118] Here, the first control command is for instructing the electric vehicle to open the charging lid, and the first control command includes identity information for identifying the charging device. An identity identification mechanism is adopted between the charging device and the charging lid control device provided on the electric vehicle. The control command transmitted from the charging device is an encrypted message, and the duplication rate of the expression form of the encrypted control command each time is extremely low. In this way, it is possible to avoid copying the control command. The charging lid control device improves the charging safety of the electric vehicle by automatically opening the charging lid for charging only after the verification of the identity of the charging device is completed.

[0119] The method of instructing the charging device to start may include various ones. For example, a switch button may be provided on the charging device, and when the switch is turned on, it may be regarded as issuing a start command to the charging device. Or, the electric vehicle may further include an activation code for activating the response controller and transmit a wake-up signal for activating the charging device and communicating with the electric vehicle to the charging device. In this case, when the charging device receives the wake-up signal and successfully verifies the activation code in the wake-up signal, it may be regarded as issuing a start command to the charging device, which is not limited here.

[0120] The charging device is activated only when charging of the electric vehicle is required, generates a first control command in the activated state, and completes subsequent operations. Thereby, it is possible to save the resources of the charging device and prevent the problem of malfunction occurring in the charging device.

[0121] After charging is completed, the charging device may be instructed to close. Similarly, various methods may be adopted for instructing the charging device to close. For example, a switch button may be provided on the charging device, and when the switch is turned off, it may be regarded as issuing a close command to the charging device. Or, the electric vehicle may further transmit a wake-up signal to the charging device, and when the charging device can no longer receive the wake-up signal, it may be regarded as issuing a close command to the charging device.

[0122] In one possible implementation, when the charging device receives a closing command, it stops sending the first control command to the electric vehicle. When the charging lid control device provided in the electric vehicle can no longer receive the first control command, it indicates that the charging is completed and can automatically control the charging lid to be closed. By automatically controlling the charging lid to be closed in such a manner, the control flow can be simplified.

[0123] In another possible implementation, when the charging device receives a closing command, it generates a second control command that includes identity information for identifying the charging device and is used to instruct the electric vehicle to close the charging lid. Similarly, the charging device further performs an encryption process on the second control command and sends the encrypted second control command to the electric vehicle. The electric vehicle automatically closes the charging lid according to the instruction of the second control command. By adopting the method of encrypted communication between the charging device and the charging lid control device, when charging the electric vehicle, the charging lid is automatically opened by sending the first control command, and after the charging is completed, the charging lid is automatically closed by sending the second control command. This prevents interference from other signals, prevents malfunction of the charging lid, and improves the communication security between the charging device and the charging lid control device.

[0124] FIG. 6 is a flowchart of a control method for a charging lid control device according to an embodiment of the present invention.

[0125] As shown in FIG. 6, the control method for the charging lid control device includes S21: Receiving the first control command sent from the charging device; S22: Performing a decryption process on the first control command; S23: Verifying the identity information in the first control command. If the verification of the identity information is successful, step S24 is executed; if the verification of the identity information fails, step S25 is executed; S24: To drive the charging lid motor so that the charging lid is in an open state, generating a lid opening command for instructing to open the charging lid, S25: including generating a lid closing command for instructing to close the charging lid to drive the charging lid motor so that the charging lid is in a closed state.

[0126] Here, the first control command is for instructing the electric vehicle to open the charging lid, and the first control command includes identity information for identifying the charging device. When charging of the electric vehicle is required, the charging lid control device receives the first control command transmitted from the charging device, and the first control command is an encrypted message, and the charging lid control device can decrypt it, thereby increasing the communication security between the charging device and the charging lid control device. The charging lid control device further verifies the identity information in the first control command. If the verification of the identity information is successful, it indicates that the current charging device is a registered safe device. At this time, the charging lid control device automatically opens the charging lid. If the verification of the identity information fails, it indicates that the current charging device is not registered and its safety cannot be guaranteed. At this time, the charging lid control device controls to keep the charging lid in a closed state.

[0127] By adopting the control method of the charging lid control device according to the embodiment of the present invention, the opening and closing of the charging lid can be automatically controlled, saving the troublesome operation of manually operating the charging lid, eliminating the need to contact the vehicle body, and being more convenient and rapid. Also, before controlling the charging lid to be opened, the charging lid control device performs identity identification on the charging device, and can only open the charging lid when the verification of the identity is successful. In this way, safety problems caused by any charging device charging the electric vehicle randomly can be avoided.

[0128] The first control command transmitted from the charging device further includes first instruction information for instructing to open the charging lid. When the charging lid control device receives the first control command and successfully verifies the identity information in the first control command, it controls the charging lid to be opened based on the first instruction information.

[0129] After the charging of the electric vehicle is completed, in one possible embodiment, the charging device stops transmitting the first control command to the charging lid control device. In this case, the charging lid control device can no longer receive the first control command. At this time, the charging lid control device generates a lid closing command for instructing to close the charging lid in order to drive the charging lid motor to close the charging lid. By adopting such a control method, the communication flow between the charging device and the charging lid control device can be simplified, making it more convenient.

[0130] In another possible embodiment, after the charging is completed, the charging lid control device further receives a second control command transmitted from the charging device, which includes identity information for identifying the charging device and second instruction information for instructing to close the charging lid. Similarly, the charging lid control device performs a decoding process on the second control command, verifies the identity information in the second control command, and when the verification of the identity information is successful, it is necessary to generate a lid closing command for instructing to close the charging lid in order to drive the charging lid motor to make the charging lid in a closed state. By adopting such a control method, interference from other signals can be prevented, malfunction of the charging lid can be avoided, and the communication security between the charging device and the charging lid control device can be improved.

[0131] The charging lid control device in the embodiment of the present invention may further actively activate the charging device to start the charging device and transmit a control command to the charging lid control device.

[0132] Specifically, when charging of the electric vehicle is required, the charging lid control device transmits, to the vicinity of the electric vehicle, an activation code for activating the charging device and a wake-up signal for activating the charging device to communicate with the electric vehicle.

[0133] When the charging device enters the coverage range of the wake-up signal, the charging device can receive the wake-up signal, and thus enters the operating state by verifying the activation code in the wake-up signal. By adopting the activation code verification mechanism, it is possible to avoid the influence of signals transmitted from other devices to the charging device, prevent misactivation of the charging device, and make the communication between the charging device and the charging lid control device safer and more effective.

[0134] In another aspect of the embodiments of the present invention, a charging system for an electric vehicle is further provided. FIG. 7 is a schematic structural diagram of the charging system according to the embodiments of the present invention.

[0135] Referring to FIG. 7, the charging system includes a charging device 100 and a charging lid control device 200. Here, the charging device 100 may be any of the above charging devices according to the embodiments of the present invention, and the charging lid control device 200 may be any of the above charging lid control devices according to the embodiments of the present invention.

[0136] As shown in FIG. 7, the charging device 100 includes a response controller 11, an encoder 12, a first signal transmitter 13, and a first signal receiver 14. Here, the encoder 12 is respectively connected to the response controller 11 and the first signal transmitter 13, and the first signal receiver 14 is connected to the response controller 11.

[0137] The charging lid control device 200 includes a second signal receiver 21, a decoder 22, a processor 23, a motor driver 24, and a second signal transmitter 25. Here, the decoder 22 is connected to the second signal receiver 21 and the processor 23 respectively, and the processor 23 is also connected to the motor driver 24. The motor driver 24 is connected to the charging lid drive motor, so that the charging lid can be driven to open and close.

[0138] The above charging system according to an embodiment of the present invention When the charging device 100 receives a start command, it generates a first control command including identity information for identifying the charging device, performs an encryption process on the first control command, and transmits the encrypted first control command to the charging lid control device 200, and The charging lid control device 200 receives the first control command, performs a decryption process on the first control command, verifies the identity information in the first control command, and when the verification of the identity information is successful, it can realize the function of generating a lid opening command for instructing to open the charging lid and driving the charging lid motor so that the charging lid is in an open state.

[0139] The control command transmitted from the charging device 100 is an encrypted message, and the duplication rate of the expression form of the encrypted control command each time is extremely low. In this way, the copying of the control command can be avoided, thereby improving the security of the information interaction between the charging device 100 and the electric vehicle. When charging the electric vehicle, by automatically controlling the charging lid to be opened by the charging lid control device 200, the troublesome operation of manually operating the charging lid is saved, there is no need to contact the vehicle body, and it is more convenient and rapid. Also, before controlling the charging lid to be opened, the charging lid control device performs identity identification on the charging device, and can only open the charging lid when the identity verification is successful. In this way, the safety problem caused by any charging device charging the electric vehicle randomly can be avoided.

[0140] Specifically, regarding the charging device 100, when the response controller 11 receives a startup command, it generates a first control command that includes identity information for identifying the charging device and is used to instruct the electric vehicle to open the charging lid, and transmits the command to the encoder 12.

[0141] The encoder 12 receives the first control command, encrypts the first control command, and transmits the encrypted first control command to the first signal transmitter 13.

[0142] The first signal transmitter 13 transmits the encrypted first control command to the charging lid control device 200 provided in the electric vehicle to instruct the electric vehicle to open the charging lid.

[0143] Regarding the charging lid control device 200, the second signal receiver 21 receives the first control command transmitted from the charging device 100 and transmits the first control command to the decoder 22.

[0144] The decoder 22 decrypts the first control command and transmits the decrypted first control command to the processor 23.

[0145] The processor 23 receives the decrypted first control command, verifies the identity information in the first control command, and when the verification of the identity information is successful, transmits a lid opening command for instructing the charging lid to be opened to the motor driver 24.

[0146] The motor driver 24 drives the charging lid motor based on the lid opening command so that the charging lid is in an open state.

[0147] In specific implementation, the charging device 100 may be started in various ways. For example, a switch may be provided on the charging device 100. The switch may be a physical button on the charging device. When the user lifts the charging device and approaches the charging port of the electric vehicle, the button can control whether the charging device enters the operating state. When the switch on the charging device 100 is turned on, the response controller 11 is started and enters the operating state. When the switch on the charging device 100 is turned off, the response controller 11 enters the sleep state.

[0148] After the charging device 100 is started, the response controller 11 generates a first control command carrying the identity information of the charging device, and after the encoder 12 performs an encryption process on the first control command, it is transmitted to the charging lid control device 200 of the electric vehicle by the first signal transmitter 13.

[0149] The second signal receiver 21 in the charging lid control device 200 receives the first control command, and the decoder 22 performs decoding processing on it to obtain the identity information of the charging device. Further, the processor 23 verifies the identity information. The processor 23 matches the obtained identity information with the registered identity information stored locally. If the matching is successful, it indicates that the current charging device 100 is a registered safe device. At this time, the processor 23 sends a lid opening command to the motor driver 24, and the motor driver 24 drives the charging lid motor to open the charging lid. During the charging of the electric vehicle, the charging device 100 continuously sends the first control command to the charging lid control device 200. If the verification of the identity information in the charging lid control command is successful, the charging lid is maintained in the open state. When the processor 23 in the charging lid control device 200 fails to verify the identity information in the first control command, the processor 23 sends a lid closing command to the motor driver 24 to instruct the charging lid to be closed, and the motor driver 24 drives the charging lid motor based on the lid closing command to make the charging lid in the closed state. Thereby, the charging safety of the electric vehicle is improved.

[0150] In another possible embodiment, when the electric vehicle needs to be charged, the charging lid control device 200 transmits a wake-up signal including an activation code for activating the charging device and for activating the charging device to communicate with the electric vehicle to the vicinity of the electric vehicle. The charging device 100 receives and verifies the wake-up signal. If the verification of the activation code in the wake-up signal is successful, it generates a first control command.

[0151] Specifically, when the electric vehicle needs to be charged and the electric vehicle approaches the charging device, the charging lid control device 200 controls the second signal transmitter 25 to send a wake-up signal including an activation code for activating the charging device to the nearby charging device 100.

[0152] When the charging device 100 enters the coverage range of the wake-up signal, the first signal receiver 14 can receive the wake-up signal, and the first signal receiver 14 transmits the received wake-up signal to the response controller 11. The response controller 11 verifies the activation code in the wake-up signal. If the verification is successful, the response controller 11 is activated; if the verification fails, the response controller 11 enters the sleep state.

[0153] By adopting the activation code verification mechanism, it is possible to avoid the influence of signals transmitted from other devices to the charging device 100, prevent the charging device 100 from being accidentally activated, and make the communication between the charging device 100 and the charging lid control device 200 safer and more effective.

[0154] After the charging device 100 successfully verifies the wake-up signal transmitted from the charging lid control device 200, the response controller 11 is activated and continues to execute related steps such as generating the first control command, encrypting and transmitting the first control command, and communicates with the charging lid control device 200 to control the charging lid to be opened.

[0155] The above-mentioned first control command includes, in addition to the identity information of the charging device 100, the first instruction information for instructing to open the charging lid.

[0156] At this time, the charging lid control device 200 verifies the identity information in the first control command. If the verification of the identity information is successful, based on the first instruction information, a lid opening command for instructing to open the charging lid is generated to drive the charging lid motor so that the charging lid is in the open state.

[0157] After the decoder 22 in the charging lid control device 200 decodes the first control command, it simultaneously obtains the identity information of the charging device and the first instruction information. The processor 23 verifies the identity information in the first control command. If the verification is successful, it sends a lid opening command to the motor driver 24 according to the instruction of the first instruction information, and further, the motor driver 24 drives the charging lid motor to open the charging lid.

[0158] After the charging of the electric vehicle is completed, the charging lid control device 200 in the embodiment of the present invention may further control the charging lid to be automatically closed.

[0159] In one possible embodiment, when the charging device 100 can no longer receive the wake-up signal, it stops sending the first control command. When the charging lid control device 200 can no longer receive the first control command, it generates a lid closing command for instructing the charging lid to close in order to drive the charging lid motor so that the charging lid is in the closed state.

[0160] After the charging of the electric vehicle is completed, the electric vehicle exits from the charging station. As the distance between the electric vehicle and the charging device 100 gradually increases, the charging device 100 can no longer receive the wake-up signal sent from the charging lid control device 200. At this time, the charging device 100 considers that the charging is completed and can drive the charging lid motor so that the charging lid is in the closed state.

[0161] In another possible embodiment, when the charging device 100 can no longer receive the wake-up signal, it generates a second control command including the identity information for identifying the charging device, performs an encryption process on the second control command, and sends the encrypted second control command to the charging lid control device 200. The charging lid control device 200 receives a second control command, performs a decryption process on the second control command, verifies the identity information in the second control command, and when the verification of the identity information is successful, generates a lid closing command for instructing the charging lid to close in order to drive the charging lid motor so that the charging lid is in a closed state.

[0162] Specifically, regarding the charging device 100, when the response controller 11 in the charging device fails to receive the wake-up signal, it generates an identity information including identity information for identifying the charging device and a second control command for instructing the electric vehicle to close the charging lid, and transmits the second control command to the encoder 12.

[0163] The encoder 12 receives the second control command, encrypts the second control command, and transmits the encrypted second control command to the first signal transmitter 13.

[0164] The first signal transmitter 13 transmits the encrypted second control command to the charging lid control device provided in the electric vehicle to instruct the electric vehicle to close the charging lid.

[0165] Regarding the charging lid control device 200, the second signal receiver 21 receives the second control command transmitted from the charging device 100 and transmits the second control command to the decoder 22.

[0166] The decoder 22 decrypts the second control command and transmits the decrypted second control command to the processor 23.

[0167] The processor 23 receives the decrypted second control command, verifies the identity information in the second control command, and when the verification of the identity information is successful, transmits a lid closing command to the motor driver according to the instruction of the second instruction information.

[0168] The motor driver 24 drives the charging lid motor to close the charging lid according to the instruction of the lid closing command.

[0169] By adopting a method in which the charging device 100 and the charging lid control device 200 perform encrypted communication, when charging an electric vehicle, the charging lid is automatically opened by transmitting a first control command, and after charging is completed, the charging lid is automatically closed by transmitting a second control command. This prevents interference from other signals, avoids malfunction of the charging lid, and improves the communication security between the charging device 100 and the charging lid control device 200.

[0170] Embodiments of the present invention improve a charging device for charging an electric vehicle and improve a charging lid control device connected to a charging lid motor. When the charging device receives a start command, it generates identity information for identifying the charging device and a first control command for instructing the electric vehicle to open the charging lid, performs encryption processing on the first control command, and transmits the encrypted first control command to the charging lid control device. The charging lid control device receives the first control command, performs decryption processing on the first control command, verifies the identity information in the first control command, and if the verification of the identity information is successful, generates a lid opening command for instructing to open the charging lid and drives the charging lid motor so that the charging lid is in an open state. Through the encrypted communication between the charging device and the charging lid control device, the charging lid can be automatically controlled to be opened automatically, saving the troublesome operation of manually operating the charging lid, eliminating the need to contact the vehicle body, and being more convenient and rapid. Also, before controlling the charging lid to be opened, the charging lid control device performs identity identification on the charging device, and can only open the charging lid if the identity verification is successful. In this way, safety problems caused by any charging device charging the electric vehicle arbitrarily can be avoided.

[0171] Although the preferred embodiments of the present invention have been described, those skilled in the art can make further changes and modifications to these embodiments once they have acquired the basic creative concept. Therefore, the appended claims should be construed to include the preferred embodiments as well as all changes and modifications that fall within the scope of the present invention.

[0172] It is obvious that those skilled in the art can make various improvements and modifications to the present invention without departing from the gist and scope of the present invention. Therefore, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and its equivalent technologies, the present invention intends to include these improvements and modifications.

Claims

1. A charging device for an electric vehicle, comprising: a response controller, a first signal receiver, an encoder, and a first signal transmitter; the first signal receiver is configured to receive the wake-up signal when the charging device enters the coverage range of the wake-up signal transmitted from the charging lid control device of the electric vehicle to the periphery of the electric vehicle, and transmit the wake-up signal to the response controller. The wake-up signal is for activating the charging device to communicate with the electric vehicle and includes an activation code for activating the response controller; the response controller is configured to transmit a first control command to the encoder when receiving a start command instructing the charging device to start; the first control command includes identity information for identifying the charging device and instructs the electric vehicle to open the charging lid; the response controller is further configured to receive and verify the wake-up signal. When the verification of the activation code in the wake-up signal is successful, the response controller transmits the first control command to the encoder. When the verification of the activation code in the wake-up signal fails, the response controller is configured to enter the sleep state; the encoder is configured to receive the first control command, encrypt the first control command, and transmit the encrypted first control command to the first signal transmitter; the first signal transmitter is configured to transmit the encrypted first control command to the charging lid control device of the electric vehicle so that the charging lid of the electric vehicle is in an open state; during the charging of the electric vehicle, the charging device continuously transmits the first control command to the charging lid control device of the electric vehicle; the charging device is characterized in that when the response controller of the charging device can no longer receive the wake-up signal, it is considered that the charging is completed, and the response controller is configured to enter the sleep state.

2. The charging device according to claim 1, wherein the response controller is configured to stop transmitting the first control command to the electric vehicle so that the charging lid of the electric vehicle is in a closed state when the response controller can no longer receive the wake-up signal.

3. When the wake-up signal cannot be received, the response controller is configured to transmit a second control command including identity information for identifying the charging device to the encoder. The encoder is configured to receive the second control command, encrypt the second control command, and transmit the encrypted second control command to the first signal transmitter. The first signal transmitter is configured to transmit the encrypted second control command to the electric vehicle so that the charging lid of the electric vehicle is in a closed state. The charging device according to claim 1, characterized in that.

4. The wake-up signal is one of a low-frequency signal, a radio frequency signal, a Bluetooth (registered trademark) signal, a mobile communication signal, a WiFi signal, or an infrared signal. The first control command is one of a low-frequency signal, a radio frequency signal, a Bluetooth (registered trademark) signal, a mobile communication signal, a WiFi signal, or an infrared signal. The second control command is one of a low-frequency signal, a radio frequency signal, a Bluetooth (registered trademark) signal, a mobile communication signal, a WiFi signal, or an infrared signal. The charging device according to claim 3, characterized in that.

5. The wake-up signal is a low-frequency signal, the first control command is a radio frequency signal, and the second control command is a radio frequency signal. The charging device according to claim 4, characterized in that.

6. The frequency of the wake-up signal is 30 kHz to 300 kHz, the frequency of the first control command is 300 kHz to 300 GHz, and the frequency of the second control command is 300 kHz to 300 GHz. The charging device according to claim 5, characterized in that.

7. A three-dimensional low-frequency antenna is provided in the first signal receiver. The charging device according to claim 5, characterized in that.

8. A charging lid control device for an electric vehicle, Including a second signal transmitter, a second signal receiver, a decoder, a processor, and a motor driver. The motor driver is connected to a charging lid motor of the electric vehicle, and the charging lid motor drives to open and close the charging lid. The second signal transmitter is configured to continuously transmit a wake-up signal to the vicinity of the electric vehicle when charging of the electric vehicle is required. The wake-up signal is for activating a charging device to communicate with the electric vehicle and includes an activation code for activating a response controller of the charging device. When the charging device successfully verifies the activation code in the wake-up signal, it transmits a first control command to a charging lid control device of the electric vehicle. When the verification of the activation code in the wake-up signal fails, the response controller of the charging device is configured to enter a sleep state. The second signal receiver is configured to receive the first control command including identity information for identifying the charging device, which is transmitted from the charging device, and transmit the first control command to the decoder. The decoder is configured to decode the first control command and transmit the decoded first control command to the processor. The processor is configured to receive the decoded first control command, verify the identity information in the first control command, and transmit a lid opening command for instructing to open the charging lid to the motor driver when the verification of the identity information is successful. The motor driver is configured to drive the charging lid motor based on the lid opening command so that the charging lid is in an open state. The charging lid control device is configured to continuously receive the first control command from the charging device during charging of the electric vehicle and maintain the charging lid in an open state when the verification of the identity information in the received first control command is successful. When the charging device can no longer receive the wake-up signal transmitted from the second signal transmitter, the response controller of the charging device enters a sleep state and stops transmitting the first control command to the charging lid control device. A charging lid control device characterized by this.

9. The first control command further includes first instruction information for instructing to open the charging lid. The processor is configured to verify the identity information in the first control command, and when the verification of the identity information is successful, transmit a lid opening command for instructing to open the charging lid to the motor driver based on the first instruction information. The charging lid control device according to claim 8, characterized in that.

10. The processor is configured to verify the identity information in the first control command, and when the verification of the identity information fails, transmit a lid closing command for instructing to close the charging lid to the motor driver. The motor driver is configured to drive the charging lid motor based on the lid closing command so that the charging lid is in a closed state. The charging lid control device according to claim 8, characterized in that.

11. The processor is configured to transmit a lid closing command for instructing to close the charging lid to the motor driver when it becomes impossible to receive the first control command. The motor driver is configured to drive the charging lid motor based on the lid closing command so that the charging lid is in a closed state. The charging lid control device according to claim 8, characterized in that.

12. The second signal receiver receives a second control command including identity information for identifying the charging device and second instruction information for instructing to close the charging lid, transmitted from the charging device, and is configured to transmit the second control command to the decoder. The decoder is configured to decode the second control command and transmit the decoded second control command to the processor. The processor receives the decoded second control command, verifies the identity information in the second control command, and when the verification of the identity information is successful, is configured to transmit a lid closing command for instructing to close the charging lid to the motor driver based on the second instruction information. The motor driver is configured to drive the charging lid motor based on the lid closing command so that the charging lid is in a closed state. The charging lid control device according to claim 8, characterized in that.

13. The wake-up signal is one of a low-frequency signal, a radio frequency signal, a Bluetooth (registered trademark) signal, a mobile communication signal, a WiFi signal, or an infrared signal, The first control command is one of a low-frequency signal, a radio frequency signal, a Bluetooth (registered trademark) signal, a mobile communication signal, a WiFi signal, or an infrared signal, The second control command is one of a low-frequency signal, a radio frequency signal, a Bluetooth (registered trademark) signal, a mobile communication signal, a WiFi signal, or an infrared signal, and the charging lid control device according to claim 12 is characterized in that.

14. The wake-up signal is a low-frequency signal, the first control command is a radio frequency signal, and the second control command is a radio frequency signal, and the charging lid control device according to claim 13 is characterized in that.

15. The frequency of the wake-up signal is 30 KHz to 300 KHz, the frequency of the first control command is 300 KHz to 300 GHz, and the frequency of the second control command is 300 KHz to 300 GHz, and the charging lid control device according to claim 14 is characterized in that.

16. A radio frequency antenna is provided in the second signal receiver, and the charging lid control device according to claim 8 is characterized in that.

17. An electric vehicle, Including the charging lid control device according to any one of claims 8 to 16, the charging lid control device is connected to a charging lid motor of the electric vehicle, and the charging lid motor drives to open and close the charging lid, and the electric vehicle is characterized in that.

18. A control method for a charging device of an electric vehicle, When the charging device enters the coverage range of a wake-up signal transmitted from the electric vehicle to the periphery, a first signal receiver of the charging device receives the wake-up signal and transmits the wake-up signal to a response controller of the charging device, and the wake-up signal is for activating the charging device to communicate with the electric vehicle and includes an activation code for activating the response controller, When the response controller of the charging device receives a start command, a first control command is generated, and the first control command includes identity information for identifying the charging device and instructs the electric vehicle to open the charging lid, The charging device performs an encryption process on the first control command, and includes transmitting the encrypted first control command to the electric vehicle, During the charging of the electric vehicle, the charging device continuously transmits the first control command to the charging lid control device of the electric vehicle. When the response controller of the charging device receives a start command, generating the first control command When the response controller of the charging device receives the wake-up signal transmitted from the electric vehicle, verifying the wake-up signal When the response controller of the charging device successfully verifies the activation code in the wake-up signal, generating the first control command; when the verification of the activation code in the wake-up signal fails, the response controller enters the sleep state. A method characterized in that when the response controller of the charging device can no longer receive the wake-up signal, the charging device considers the charging to be completed and the response controller enters the sleep state.

19. The method according to claim 18, further comprising stopping transmitting the first control command to the electric vehicle so that the charging lid of the electric vehicle is in a closed state when the charging device can no longer receive the wake-up signal.

20. When the charging device can no longer receive the wake-up signal, generating a second control command including identity information for identifying the charging device, performing an encryption process on the second control command, and further comprising transmitting the encrypted second control command to the electric vehicle so that the charging lid of the electric vehicle is in a closed state. The method according to claim 18.

21. A control method for a charging lid control device of an electric vehicle, When the second signal transmitter of the charging lid control device continuously transmits a wake-up signal to the periphery of the electric vehicle when charging of the electric vehicle is required, the wake-up signal is for activating the charging device to communicate with the electric vehicle, and includes an activation code for activating the charging device. When the charging device successfully verifies the activation code in the wake-up signal, it transmits a first control command to the charging lid control device of the electric vehicle. When the verification of the activation code in the wake-up signal fails, the response controller of the charging device is put into a sleep state, The charging lid control device receives the first control command including the identity information for identifying the charging device transmitted from the charging device, The charging lid control device performs a decoding process on the first control command, The charging lid control device verifies the identity information in the first control command, When the charging lid control device successfully verifies the identity information, it includes generating a lid opening command for instructing to open the charging lid in order to drive the charging lid motor so that the charging lid is in an open state, During charging of the electric vehicle, when the first control command is continuously received from the charging device and the verification of the identity information in the received first control command is successful, the charging lid is maintained in an open state, The method is characterized in that when the charging device cannot receive the wake-up signal transmitted from the second signal transmitter, the response controller of the charging device enters a sleep state and stops transmitting the first control command to the charging lid control device.

22. The first control command further includes first instruction information for instructing to open the charging lid, When the charging lid control device successfully verifies the identity information, generating a lid opening command for instructing to open the charging lid, The method according to claim 21, characterized in that when the charging lid control device successfully verifies the identity information, it includes generating a lid opening command for instructing to open the charging lid based on the first instruction information.

23. When the charging lid control device fails to verify the identity information, it further includes generating a lid closing command for instructing the charging lid to close in order to drive the charging lid motor so that the charging lid is in a closed state. The method according to claim 21 or 22, characterized in that.

24. When the charging lid control device fails to receive the first control command transmitted from the charging device, it further includes generating a lid closing command for instructing the charging lid to close in order to drive the charging lid motor so that the charging lid is in a closed state. The method according to claim 21 or 22, characterized in that.

25. The charging lid control device receives a second control command including identity information for identifying the charging device and second instruction information for instructing the charging lid to close, transmitted from the charging device. The charging lid control device performs a decoding process on the second control command. The charging lid control device verifies the identity information in the second control command. When the charging lid control device succeeds in verifying the identity information, it further includes generating a lid closing command for instructing the charging lid to close in order to drive the charging lid motor so that the charging lid is in a closed state. The method according to claim 21 or 22, characterized in that.

26. Before the charging lid control device receives the first control command transmitted from the charging device, further, When charging of the electric vehicle is required, the charging lid control device includes an activation code for activating the charging device and transmits a wake-up signal for activating the charging device and communicating with the electric vehicle to the periphery of the electric vehicle. The method according to claim 21 or 22, characterized in that.

27. A method for controlling a charging lid of an electric vehicle, comprising: When the second signal transmitter of the charging lid control device continuously transmits a wake-up signal to the periphery of the electric vehicle when charging of the electric vehicle is required, the wake-up signal is for activating the charging device to communicate with the electric vehicle and includes an activation code for activating the response controller of the charging device. When the charging device successfully verifies the activation code in the wake-up signal, it transmits a first control command to the charging lid control device of the electric vehicle. When the verification of the activation code in the wake-up signal fails, the response controller is put into a sleep state. When the response controller of the charging device receives and verifies the wake-up signal and receives a start command instructing the charging device to start when the verification of the activation code in the wake-up signal is successful, it generates the first control command including the identity information for identifying the charging device, performs an encryption process on the first control command, and transmits the encrypted first control command to the charging lid control device. The charging lid control device receives the first control command, performs a decryption process on the first control command, and verifies the identity information in the first control command. When the charging lid control device successfully verifies the identity information, it includes generating a lid opening command for instructing to open the charging lid in order to drive the charging lid motor so that the charging lid is in an open state. During the charging of the electric vehicle, the charging device continuously transmits the first control command to the charging lid control device of the electric vehicle. When the charging device can no longer receive the wake-up signal transmitted from the second signal transmitter, the response controller of the charging device enters a sleep state and stops transmitting the first control command to the charging lid control device. This is the method characterized by this.

28. A charging system for an electric vehicle, including the charging device according to any one of Claims 1 to 7 and the charging lid control device according to any one of Claims 8 to 16. When the charging device receives a startup command, it generates a first control command including identity information for identifying the charging device, performs an encryption process on the first control command, and transmits the encrypted first control command to the charging lid control device. The charging lid control device receives the first control command, performs a decryption process on the first control command, and verifies the identity information in the first control command. When the verification of the identity information is successful, a lid opening command for instructing to open the charging lid is generated to drive the charging lid motor so that the charging lid is in an open state. A charging system characterized by this.

29. When charging of the electric vehicle is required, the charging lid control device includes an activation code for activating the charging device around the electric vehicle and transmits a wake-up signal for activating the charging device and communicating with the electric vehicle. The charging device receives and verifies the wake-up signal, and when the verification of the activation code in the wake-up signal is successful, generates the first control command. The charging system according to claim 28, characterized by this.

30. The first control command further includes first instruction information for instructing to open the charging lid. The charging lid control device verifies the identity information in the first control command, and when the verification of the identity information is successful, based on the first instruction information, generates a lid opening command for instructing to open the charging lid to drive the charging lid motor so that the charging lid is in an open state. The charging system according to claim 28 or 29, characterized by this.

31. When the charging device cannot receive the wake-up signal, it stops transmitting the first control command. When the charging lid control device cannot receive the first control command, it generates a lid closing command for instructing to close the charging lid to drive the charging lid motor so that the charging lid is in a closed state. The charging system according to claim 29, characterized by this.

32. When the charger fails to receive the wake-up signal, it generates a second control command including identity information for identifying the charger, performs an encryption process on the second control command, and transmits the encrypted second control command to the charging lid control device. The charging lid control device receives the second control command, performs a decryption process on the second control command, and verifies the identity information in the second control command. When the verification of the identity information is successful, a lid closing command for instructing the charging lid to close is generated to drive the charging lid motor so that the charging lid is in a closed state. The charging system according to claim 29, characterized in that.

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