CN115122957A - Electric vehicle, method and device for detecting electric vehicle, medium, and electronic device - Google Patents

Electric vehicle, method and device for detecting electric vehicle, medium, and electronic device Download PDF

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Publication number
CN115122957A
CN115122957A CN202110325996.3A CN202110325996A CN115122957A CN 115122957 A CN115122957 A CN 115122957A CN 202110325996 A CN202110325996 A CN 202110325996A CN 115122957 A CN115122957 A CN 115122957A
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China
Prior art keywords
gun
electric vehicle
connection signal
charging
charging gun
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Pending
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CN202110325996.3A
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Chinese (zh)
Inventor
凌和平
黄伟
袁帅
刘源发
黎遗铃
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN202110325996.3A priority Critical patent/CN115122957A/en
Publication of CN115122957A publication Critical patent/CN115122957A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses an electric vehicle and a detection method, a detection device, a medium and electronic equipment thereof, wherein the method comprises the following steps: when the electric vehicle is in a driving gear, whether a first gun connection signal detected by a vehicle-mounted charger of the electric vehicle is acquired or not is confirmed; if the first gun connection signal is acquired, acquiring a second gun connection signal detected by a battery manager of the electric vehicle, and determining the connection state of the charging gun and the electric vehicle according to the first gun connection signal and the second gun connection signal; and if the first gun connection signal is not acquired, acquiring a second gun connection signal detected by the battery manager, and determining the connection state of the charging gun and the electric vehicle according to the second gun connection signal. The detection method can avoid the gun dragging risk caused by single detection failure, and ensure the accuracy of the connection signal of the charging gun.

Description

Electric vehicle, method and device for detecting electric vehicle, medium, and electronic device
Technical Field
The invention relates to the technical field of vehicle charging, in particular to an electric vehicle, a detection method and device thereof, a medium and electronic equipment.
Background
There are generally two types of charging facilities for electric vehicles: alternating current charging pile and direct current charging pile. To alternating-current charging stake's rifle connection signal, detection device only has on-vehicle charger, and after its inefficacy, can make the rifle that charges and electric vehicle's connected state unable detection. At this moment, if electric vehicle traveles under the condition that is connected with the rifle that charges, can lead to dragging the rifle, and then damage the vehicle and fill electric pile, can bring the safety risk even.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a method for detecting an electric vehicle, so as to avoid a gun dragging risk caused by a single detection failure, and ensure accuracy of a charging gun connection signal.
A second object of the invention is to propose a computer-readable storage medium.
A third object of the invention is to propose an electronic device.
A fourth object of the present invention is to provide a detection apparatus for an electric vehicle.
A fifth object of the invention is to propose an electric vehicle.
In order to achieve the above object, a first aspect of the present invention provides a method for detecting an electric vehicle, including the steps of: when the electric vehicle is in a driving gear, determining whether a first gun connection signal detected by a vehicle-mounted charger of the electric vehicle is acquired; if the first gun connection signal is acquired, acquiring a second gun connection signal detected by a battery manager of the electric vehicle, and determining the connection state of a charging gun and the electric vehicle according to the first gun connection signal and the second gun connection signal; and if the first gun connection signal is not acquired, acquiring a second gun connection signal detected by the battery manager, and determining the connection state of the charging gun and the electric vehicle according to the second gun connection signal.
In addition, the detection method of the electric vehicle according to the embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the determining a connection state of a charging gun to the electric vehicle according to the first gun connection signal and the second gun connection signal includes: judging whether the first gun connection signal is consistent with the second gun connection signal; if the gun connection signal is consistent with the first gun connection signal, and the duration time is longer than or equal to a first preset time, determining the connection state of the charging gun and the electric vehicle according to the first gun connection signal or the second gun connection signal, and prompting; and if the charging gun is inconsistent and the duration time reaches second preset time, judging that the vehicle-mounted charger is in a fault state, determining the connection state of the charging gun and the electric vehicle according to the second gun connection signal, and prompting.
According to an embodiment of the present invention, the determining the connection state of the charging gun to the electric vehicle according to the second gun connection signal includes: if the second gun connection signal is a preset connection state signal, determining that the charging gun and the electric vehicle are in a connection state; and if the second gun connection signal is not the preset connection state signal, determining that the charging gun and the electric vehicle are not in a connection state.
According to an embodiment of the invention, the method further comprises: when the electric vehicle is detected to be switched from a driving gear to a non-driving gear, the battery manager stops detection of the connection state of the charging gun.
According to an embodiment of the invention, the method further comprises: and when the vehicle-mounted charger is in a fault state, recording preset fault codes identifying charging guns which are inconsistent.
According to an embodiment of the invention, the first preset time is 0.3-0.8 s, and the second preset time is 0.5-1.5 s.
In order to achieve the above object, a second embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the above detection method for an electric vehicle.
In order to achieve the above object, a third aspect of the present invention provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory, wherein the computer program, when executed by the processor, implements the above-mentioned method for detecting an electric vehicle.
In order to achieve the above object, a fourth aspect of the present invention provides a detection apparatus for an electric vehicle, including: the vehicle-mounted charger is used for connecting a charging gun of the charging pile and detecting the connection state of the charging gun to obtain a first gun connection signal; a battery manager connected to the in-vehicle charger and configured to connect to the charging gun, the battery manager being configured to: when the electric vehicle is in a driving gear, determining whether the first gun connection signal is acquired; if the first gun connection signal is acquired, detecting the connection state of the charging gun to acquire a second gun connection signal, and determining the connection state of the charging gun and the electric vehicle according to the first gun connection signal and the second gun connection signal; and if the first gun connection signal is not acquired, detecting the connection state of the charging gun to acquire a second gun connection signal, and determining the connection state of the charging gun and the electric vehicle according to the second gun connection signal.
In order to achieve the above object, a fifth aspect of the present invention provides an electric vehicle, which includes the electronic device of the above embodiment, or the detection apparatus of the electric vehicle of the above embodiment.
According to the electric vehicle and the detection method and device, the medium and the electronic equipment of the electric vehicle, the connection state of the charging gun is detected through the battery manager, the gun dragging risk caused by single detection failure can be avoided, and the accuracy of a connection signal of the charging gun is ensured.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a flow chart of a method of detecting an electric vehicle according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an electric vehicle charging connection of an embodiment of the present invention;
FIG. 3 is a schematic diagram of the detection and transmission of a charging gun connection signal according to one embodiment of the present invention;
FIG. 4 is a flow chart of a method of detecting an electric vehicle in accordance with one embodiment of the present invention;
FIG. 5 is a block diagram of an electronic device of an embodiment of the invention;
fig. 6 is a block diagram of the structure of an electric vehicle of one embodiment of the invention;
fig. 7 is a block diagram of an electric vehicle according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
An electric vehicle, a detection method, a device, a medium, and an electronic apparatus according to an embodiment of the present invention are described below with reference to the drawings.
Fig. 1 is a flowchart of a detection method of an electric vehicle according to an embodiment of the present invention.
As shown in fig. 1, the detection method comprises the following steps:
and S1, when the electric vehicle is in the driving gear, confirming whether a first gun connection signal detected by an on-board charger of the electric vehicle is acquired.
Specifically, as shown in fig. 2, when the charging port of the electric vehicle is connected to the charging gun of the charging pile for charging, the charging pile takes power from the power grid, and transmits the electric energy of the power grid to the electric vehicle. Wherein, fill electric pile and can be for alternating-current charging stake, the rifle that charges is for connecting alternating-current charging stake.
And S2, if the first gun connection signal is acquired, acquiring a second gun connection signal detected by a battery manager of the electric vehicle, and determining the connection state of the charging gun and the electric vehicle according to the first gun connection signal and the second gun connection signal.
And S3, if the first gun connection signal is not acquired, detecting the connection state of the charging gun to acquire a second gun connection signal, and determining the connection state of the charging gun and the electric vehicle according to the second gun connection signal.
In this embodiment, if the first gun connection signal is not acquired, which indicates that the communication between the vehicle-mounted charger and the battery manager is over time, the reason may be that the fuse F1 in fig. 3 is blown, or the vehicle-mounted charger itself (e.g., hardware, communication chip) fails, it is determined that the vehicle-mounted charger is in a failure state.
Specifically, as shown in fig. 3, a first detection module is disposed in the vehicle-mounted charger and configured to identify a charging gun connection signal of the ac charging pile, and send the charging gun connection signal to the battery manager through a CAN (Controller Area Network) message. The battery manager can be internally provided with a second detection module for identifying a charging gun connection signal of the alternating-current charging pile under the condition that the vehicle-mounted charger fails or the low-voltage fuse of the vehicle-mounted charger burns out.
The charging gun connection signal is a resistance signal, the charging gun connection corresponds to a series connection of a resistor Rcc, called CC resistor (the setting of the charging power and the corresponding CC resistance value is shown in table 1 below) at the ac charging port of the vehicle, and after the CC resistor is connected in series, the vehicle-mounted charger converts the low-voltage 12V power supply into 5V through an internal circuit, as shown in fig. 3. After the charging gun is connected, the vehicle-mounted charger recognizes the change of the voltage and calculates the resistance value of the resistor so as to recognize the connection state of the charging gun. The charging gun is connected, namely the CC resistor is communicated with the first detection module, and the first detection module can detect a voltage signal; if the charging gun is not connected, the CC resistor is disconnected with the first detection module, and the first detection module cannot detect a voltage signal. The detection principle of the second detection module in the battery manager on the connection state of the charging gun is the same as that of the first detection module, and the connection state of the charging gun is detected by detecting a voltage signal.
TABLE 1
Charging power of charging pile CC resistance
1.6kW 1500Ω
3.3kW 680Ω
6.6kW 220Ω
Therefore, the double detection of the connection state of the charging gun through the vehicle-mounted charger and the battery manager can improve the detection reliability of the connection state of the charging gun, and further can better avoid the phenomenon of gun dragging and improve the charging safety.
In one embodiment of the present invention, determining the connection state of the charging gun to the electric vehicle according to the first gun connection signal and the second gun connection signal may include: judging whether the first gun connection signal is consistent with the second gun connection signal; if the charging gun and the electric vehicle are consistent, and the duration time is longer than or equal to a first preset time, judging that the vehicle-mounted charger is in a non-fault state, determining the connection state of the charging gun and the electric vehicle according to the first gun connection signal or the second gun connection signal, and prompting; if the charging gun and the electric vehicle are inconsistent and the duration time reaches the second preset time, the vehicle-mounted charger is judged to be in a fault state, the connection state of the charging gun and the electric vehicle can be determined according to the second gun connection signal, and prompt is carried out.
The value of the first preset time is 0.3-0.8 s, for example, 0.5 s; the value of the second preset time is 0.5-1.5 s, for example, 1 s. The prompt can be a voice prompt, a sound-light alarm prompt or a text prompt displayed on the vehicle-mounted terminal.
In this embodiment, when the connection state of the charging gun and the electric vehicle is determined according to the second gun connection signal, if the second gun connection signal is a preset connection state signal, it is determined that the charging gun and the electric vehicle are in the connection state; and if the second gun connection signal is not the preset connection state signal, determining that the charging gun and the electric vehicle are not in a connection state.
Correspondingly, when the connection state of the charging gun and the electric vehicle is determined according to the first gun connection signal, if the first gun connection signal is a preset connection state signal, the charging gun and the electric vehicle are judged to be in the connection state; and if the first gun connection signal is not the preset connection state signal, judging that the charging gun and the electric vehicle are not in a connection state.
The preset connection state signal may be a preset specific code indicating that the charging gun and the electric vehicle are in a connection state.
As an example, referring to fig. 3, when the second gun connection signal is used for detecting the connection state of the charging gun, the battery manager may integrate the dc gun connection signal and send the signal to the vehicle controller, the gear controller, and the meter through the CAN message. The vehicle controller receives the gun connection signal integrated by the battery manager, extinguishes the OK lamp of the vehicle, and the vehicle is not allowed to run; after the gear controller receives the gun connection signal, the whole vehicle is not allowed to be in gear; after the instrument receives the gun connection signal, a gun connection indicating lamp is displayed on the vehicle-mounted display screen to prompt a user that the vehicle is in a state of being connected with the charging gun. Therefore, the gun dragging risk caused by single detection failure of the vehicle-mounted charger can be avoided, and the accuracy of the charging gun connection signal is ensured.
In an embodiment of the present invention, as shown in fig. 4, the detection method may further include: the battery manager stops detection of the charging gun connection state when the electric vehicle is detected to be switched from the driving gear to the non-driving gear.
Specifically, the electric vehicle is switched from the driving gear to the non-driving gear, which can indicate that the electric vehicle is not started temporarily, is still in a static state, and does not have the gun dragging condition, so that the detection of the connection state of the charging gun by the battery manager can be stopped, and the energy consumption is reduced.
In an embodiment of the present invention, as shown in fig. 4, the detection method may further include: when the vehicle-mounted charger is in a fault state, the inconsistent preset fault codes of the charging guns are recorded and identified, so that the vehicle-mounted charger can be conveniently maintained in the following process.
For convenience of understanding, the following describes a detection method of an electric vehicle according to an embodiment of the present invention with reference to fig. 3 and 4:
referring to fig. 3, if the on-board charger fails or the low-voltage 12V power supply fuse F1 burns out, the first detection module cannot detect the CC resistance. If do not have the second detection module, then even insert the rifle that charges, because unable detection comes out, consequently the user starts behind the vehicle, can directly hang D and keep off, and drive electric vehicle traveles, causes dragging of rifle that charges, and the damage of battery charging outfit and electric vehicle can take place the risk of electrocuteeing because of contacting the exposed high-voltage line that damages even. Therefore, the invention adds a signal detection module, namely a second detection module, in the battery manager, and the signal detection module is directly connected with the charging port of the electric vehicle, so that the battery manager can detect the charging gun.
When the vehicle-mounted charger is in a fault state, the connection of the charging gun can be rapidly detected by the access of the second detection module of the battery manager, the charging gun connection signal is sent to the vehicle controller and the gear controller, the vehicle cannot run, and the instrument prompts a charging gun connection icon to prompt a user. The user can normally drive the vehicle to run after pulling out the charging gun. And moreover, the detection circuit of the battery manager is connected, so that the normal detection of the vehicle-mounted charger on the CC resistor is not interfered, and the normal work of the vehicle-mounted charger is ensured.
Referring to fig. 4, if the entire vehicle is in the non-driving gear, i.e., the OFF gear, the electric vehicle is not driven, the gun dragging fault does not occur under the working condition, and the BMC (Battery Management Controller) does not need to detect the gun signal. Once the whole vehicle is in a driving gear, namely an ON gear, the electric vehicle has the capability of driving, and at the moment, the gun dragging risk can occur.
For this purpose, referring to fig. 4, in the drive position (ON position), the battery manager detects whether a "charging gun connection signal" message (0x24A) of the vehicle-mounted charger is collected in the CAN network. If the collection is not carried out for a certain time such as 1s, the vehicle-mounted charger is in a fault state; if the charging gun signal is collected and inconsistent with the charging gun signal detected by the battery manager and lasts for the first preset time such as 1s, the fault of the vehicle-mounted charger can be also indicated, and the preset fault code for identifying the inconsistency of the charging gun can be recorded. When the vehicle-mounted charger is confirmed to be in a fault state, the battery manager can control the transformer in the fig. 3 to output a 5V power supply to be injected into the second detection module of the CC resistor, detect the actual state of the connection of the charging gun, send the actual connection state of the charging gun out to be received by the vehicle controller and the gear controller, and ensure that the vehicle does not have the gun dragging fault. And in the whole detection process, the battery manager confirms whether the whole vehicle is powered OFF to a non-driving gear (OFF gear) in real time, if the whole vehicle enters the non-driving gear (OFF gear), the detection of the connection of the charging gun is not carried out any more, and the vehicle enters a dormancy process.
If the charging gun signal is acquired and is consistent with the charging gun signal detected by the battery manager and lasts for a second preset time of 0.5s, the 5V power supply in the battery manager cannot be injected into the detection circuit of the CC resistor, the battery manager keeps sending a charging gun connection signal of the vehicle-mounted charger to the vehicle control unit and the gear controller for receiving, and the vehicle is guaranteed not to have a gun dragging fault.
In summary, the detection method of the electric vehicle according to the embodiment of the present invention further performs detection of the connection state of the charging gun through the battery manager, so that the gun dragging risk caused by single detection failure can be avoided, and the accuracy of the connection signal of the charging gun can be ensured.
The invention also provides a computer readable storage medium.
In this embodiment, a computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the above-described detection method for an electric vehicle.
The computer-readable storage medium according to the embodiment of the present invention, when the computer program stored thereon and corresponding to the method for detecting an electric vehicle according to the above-described embodiment is executed by the processor, can implement detection of a connection state of a charging gun through the battery manager, can avoid a gun dragging risk caused by a single detection failure, and can ensure accuracy of a connection signal of the charging gun.
Fig. 5 is a block diagram of the electronic device of the embodiment of the present invention.
As shown in fig. 5, the electronic device 100 comprises a memory 10, a processor 20 and a computer program 30 stored on the memory 10.
In this embodiment, the computer program 30, when executed by a processor, implements the above-described detection method of an electric vehicle.
In the electronic device of the embodiment of the present invention, when the computer program corresponding to the detection method of the electric vehicle of the embodiment stored in the memory of the electronic device is executed by the processor, the detection of the connection state of the charging gun through the battery manager can be realized, the gun dragging risk caused by single detection failure can be avoided, and the accuracy of the connection signal of the charging gun can be ensured.
The invention further provides a detection device of the electric vehicle.
Referring to fig. 3, the detection apparatus 200 of the electric vehicle includes: an onboard charger 210 and a battery manager 220. The vehicle-mounted charger 210 is connected with a charging port of the electric vehicle, and the vehicle-mounted charger 210 is used for detecting the connection state of a charging gun to obtain a first gun connection signal; battery manager 220 is connected to on-vehicle charger 210 and the charging port, respectively.
In this embodiment, the battery manager 220 is configured to determine whether the first gun connection signal is acquired when the electric vehicle is in the driving gear; if the first gun connection signal is obtained, detecting the connection state of the charging gun to obtain a second gun connection signal, and determining the connection state of the charging gun and the electric vehicle according to the first gun connection signal and the second gun connection signal; and if the first gun connection signal is not acquired, detecting the connection state of the charging gun to acquire a second gun connection signal, and determining the connection state of the charging gun and the electric vehicle according to the second gun connection signal.
For other specific embodiments of the detection device for an electric vehicle according to the embodiment of the present invention, reference may be made to specific embodiments of the detection method for an electric vehicle according to the above-described embodiment of the present invention.
The detection device of the electric vehicle further detects the connection state of the charging gun through the battery manager, can avoid gun dragging risk caused by single detection failure, and ensures the accuracy of a connection signal of the charging gun.
Further, the invention can also provide an electric vehicle.
In one embodiment of the present invention, as shown in fig. 6, an electric vehicle 300 includes the electronic apparatus 100 of the above-described embodiment.
In another embodiment of the present invention, as shown in fig. 7, an electric vehicle 300 includes the detection apparatus 200 of the electric vehicle of the above-described embodiment.
According to the electric vehicle provided by the embodiment of the invention, the detection of the connection state of the charging gun can be realized through the battery manager through the detection device of the electronic equipment or the electric vehicle, the gun dragging risk caused by single detection failure can be avoided, and the accuracy of the connection signal of the charging gun is ensured.
It should be noted that the logic and/or steps shown in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A method of detecting an electric vehicle, characterized by comprising the steps of:
when the electric vehicle is in a driving gear, determining whether a first gun connection signal detected by a vehicle-mounted charger of the electric vehicle is acquired;
if the first gun connection signal is obtained, obtaining a second gun connection signal detected by a battery manager of the electric vehicle, and determining the connection state of a charging gun and the electric vehicle according to the first gun connection signal and the second gun connection signal;
and if the first gun connection signal is not acquired, acquiring a second gun connection signal detected by the battery manager, and determining the connection state of the charging gun and the electric vehicle according to the second gun connection signal.
2. The method for detecting an electric vehicle according to claim 1, wherein the determining a connection state of a charging gun to the electric vehicle based on the first gun connection signal and the second gun connection signal comprises:
judging whether the first gun connection signal is consistent with the second gun connection signal;
if the charging gun and the electric vehicle are consistent and the duration time is longer than or equal to a first preset time, determining the connection state of the charging gun and the electric vehicle according to the first gun connection signal or the second gun connection signal, and prompting;
and if the charging gun is inconsistent and the duration time reaches second preset time, judging that the vehicle-mounted charger is in a fault state, determining the connection state of the charging gun and the electric vehicle according to the second gun connection signal, and prompting.
3. The method for detecting an electric vehicle according to claim 1 or 2, wherein the determining a connection state of the charging gun to the electric vehicle according to the second gun connection signal includes:
if the second gun connection signal is a preset connection state signal, determining that the charging gun and the electric vehicle are in a connection state;
and if the second gun connection signal is not the preset connection state signal, determining that the charging gun and the electric vehicle are not in a connection state.
4. The method for detecting an electric vehicle according to claim 1, characterized in that the method further comprises:
when detecting that the electric vehicle is switched from a driving gear to a non-driving gear, the battery manager stops detecting the connection state of the charging gun.
5. The method for detecting an electric vehicle according to claim 2, characterized in that the method further comprises:
and when the vehicle-mounted charger is in a fault state, recording preset fault codes for identifying the inconsistency of the charging gun.
6. The method for detecting the electric vehicle according to claim 2, wherein the first preset time is 0.3 to 0.8s, and the second preset time is 0.5 to 1.5 s.
7. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method of detecting an electric vehicle according to any one of claims 1 to 6.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory, characterized in that the computer program, when executed by the processor, implements the method of detection of an electric vehicle according to any one of claims 1-6.
9. A detection device of an electric vehicle, characterized by comprising:
the vehicle-mounted charger is used for being connected with a charging gun of a charging pile and detecting the connection state of the charging gun to obtain a first gun connection signal;
a battery manager connected with the vehicle-mounted charger and used for connecting the charging gun, the battery manager being used for:
when the electric vehicle is in a driving gear, determining whether the first gun connection signal is acquired;
if the first gun connection signal is acquired, detecting the connection state of the charging gun to acquire a second gun connection signal, determining the connection state of the charging gun and the electric vehicle according to the first gun connection signal and the second gun connection signal, and prompting;
and if the first gun connection signal is not acquired, detecting the connection state of the charging gun to acquire a second gun connection signal, determining the connection state of the charging gun and the electric vehicle according to the second gun connection signal, and prompting.
10. An electric vehicle characterized by comprising the electronic device according to claim 8 or the detection apparatus of the electric vehicle according to claim 9.
CN202110325996.3A 2021-03-26 2021-03-26 Electric vehicle, method and device for detecting electric vehicle, medium, and electronic device Pending CN115122957A (en)

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CN202110325996.3A CN115122957A (en) 2021-03-26 2021-03-26 Electric vehicle, method and device for detecting electric vehicle, medium, and electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110325996.3A CN115122957A (en) 2021-03-26 2021-03-26 Electric vehicle, method and device for detecting electric vehicle, medium, and electronic device

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CN115122957A true CN115122957A (en) 2022-09-30

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