Electric vehicle and its driving control device

Abstract

The present invention relates to an electric vehicle and its driving control device. By arranging a battery management module and an electronic control module on a battery assembly, the battery management module and the electronic control module can be replaced as a whole along with the replacement of the battery assembly, so that only controlled components such as a driving motor and an electrical working unit are left on the vehicle frame. In this way, when any one of the battery management module and the electronic control module fails, only the battery assembly needs to be replaced to replace the battery management module and the electronic control module, and through the insertion of a first interface and a second interface, the electrical connection with the driving motor and the electrical working unit on the vehicle frame can be achieved; when the vehicle frame is damaged, the battery assembly can be disassembled as a whole onto another empty vehicle frame, so that the vehicle frame and the battery assembly can form a new electric vehicle, effectively improving the utilization rate of the electric vehicle and saving the loss cost.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and particularly to an electric vehicle and its driving control device. Background Art

[0002] At present, there are many electronic components installed on shared electric vehicles, and multiple control modules are required to control different components of the shared electric vehicles respectively. For example, a shared electric vehicle includes an ECU (Electronic Control Unit, also known as a driving computer) that communicates with a server, which is mainly responsible for receiving control instructions from the server sent by a user, positioning, locking, and unlocking the shared electric vehicle. For example, if the shared electric vehicle also integrates a shared power bank, the ECU is also used to control the unlocking and locking of the shared power bank according to the user's control instructions. For example, a shared electric vehicle includes an electric control module for controlling the motor of the shared electric vehicle. For example, the shared electric vehicle also includes a BMS (Battery Management System) for managing the electrical energy of the power battery.

[0003] On shared electric vehicles, the ECU, BMS, and electric control module are respectively produced by different manufacturers and assembled onto the vehicle by the vehicle manufacturer. When any one of the above ECU, BMS, and electric control module has a problem, users or operators of the shared electric vehicle cannot replace these faulty modules individually, resulting in greater maintenance difficulty and lower maintenance efficiency. Summary of the Invention

[0004] Based on this, it is necessary to provide an electric vehicle and its driving control device.

[0005] A driving control device for an electric vehicle includes: a vehicle frame and a driving control device;

[0006] The vehicle frame is provided with a first interface, a driving motor, at least one wheel, and a plurality of electrical working units. The driving motor and each of the electrical working units are electrically connected to the first interface. The driving motor is drivingly connected to at least one of the wheels. A battery installation position is provided on the vehicle frame;

[0007] The driving control device includes a battery assembly, a battery management module, an electric control module, and a second interface. The battery assembly is detachably arranged on the battery installation position. The battery management module and the electric control module are both arranged on the battery assembly. The battery management module is electrically connected to the battery assembly. The battery management module is electrically connected to the electric control module. The battery assembly, the battery management module, and the electric control module are all electrically connected to the second interface;

[0008] The first interface and the second interface are detachably connected. The drive motor is electrically connected to the electronic control module through the first interface and the second interface, and each of the electrical working units is electrically connected to the electronic control module through the first interface and the second interface.

[0009] In one embodiment, an electronic control unit is further included. The electronic control unit is disposed on the battery assembly, and is electrically connected to the battery management module and the electronic control module respectively. The electronic control unit is electrically connected to the second interface, and each of the electrical working units is electrically connected to the electronic control unit through the first interface and the second interface.

[0010] In one embodiment, the electrical working unit includes a display screen, and the display screen is electrically connected to the first interface.

[0011] In one embodiment, the display screen is electrically connected to the electronic control unit through the first interface and the second interface.

[0012] In one embodiment, the electrical working unit further includes a vehicle lamp, a throttle, an electronic lock, a horn and a brake assembly.

[0013] In one embodiment, the vehicle driving control device further includes a positioning module, and the positioning module is electrically connected to the electronic control unit.

[0014] In one embodiment, the battery assembly includes a battery body and an integrated circuit board. The battery body is electrically connected to the second interface, the battery body is detachably disposed on the battery mounting position, the integrated circuit board is disposed on the battery body, and the battery management module, the electronic control unit and the electronic control module are all disposed on the integrated circuit board.

[0015] A vehicle driving control device for an electric vehicle includes a battery assembly, a battery management module, an electronic control module and a second interface; the battery assembly is used for being detachably disposed on a battery mounting position of a vehicle frame of the electric vehicle, the battery management module and the electronic control module are both disposed on the battery assembly, the battery management module is electrically connected to the battery assembly, the battery management module is electrically connected to the electronic control module, and the battery assembly, the battery management module and the electronic control module are all electrically connected to the second interface;

[0016] The second interface is used for detachably connecting with a first interface of the electric vehicle.

[0017] An electric vehicle driving control device includes a battery assembly, a battery management module, an electronic control unit, an electric control module, and a second interface; the battery assembly is used to be detachably arranged at the battery installation position of the frame of the electric vehicle, the battery management module, the electronic control unit, and the electric control module are all arranged on the battery assembly, the battery management module is electrically connected to the battery assembly, the electronic control unit is electrically connected to the battery management module and the electric control module respectively, and the battery assembly, the electronic control unit, the battery management module, and the electric control module are all electrically connected to the second interface;

[0018] The second interface is used for pluggable connection with the first interface of the electric vehicle.

[0019] An electric vehicle driving control device includes a battery assembly, a battery management module, an electronic control unit, an electric control module, and a second interface; the battery assembly is used to be detachably arranged at the battery installation position of the frame of the electric vehicle, the battery management module, the electronic control unit, and the electric control module are all arranged on the battery assembly, the battery management module is electrically connected to the battery assembly, the electronic control unit is electrically connected to the battery management module and the electric control module respectively, and the battery assembly, the electronic control unit, the battery management module, and the electric control module are all electrically connected to the second interface;

[0020] The second interface is used for pluggable connection with the first interface of the electric vehicle.

[0021] The beneficial effects of the present invention are as follows: By arranging the battery management module and the electric control module on the battery assembly, the battery management module and the electric control module can be integrally replaced as the battery assembly is replaced, so that only the controlled components such as the drive motor and the electrical working unit are left on the frame. In this way, when any one of the battery management module and the electric control module fails, only the battery assembly needs to be replaced to replace the battery management module and the electric control module, and through the plugging of the first interface and the second interface, the electrical connection with the drive motor and the electrical working unit on the frame can be realized; in addition, during operation, the operation personnel can conveniently replace the battery assembly, and only the drive motor and the electrical working unit are left on the frame, so that the shared electric vehicle can be identified according to the battery assembly instead of the frame; when the frame is damaged, the battery assembly can be integrally disassembled onto another empty frame, and then the frame and the battery assembly can form a new electric vehicle, effectively improving the utilization rate of the electric vehicle and saving the loss cost. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0023] Figure 1 Schematic diagram of the electrical component logic structure of an electric vehicle in an embodiment

[0024] Figure 2 Schematic diagram of the electrical component logic structure of an electric vehicle in another embodiment;

[0025] Figure 3 Schematic diagram of the electrical component logic structure of an electric vehicle in yet another embodiment. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] Such as Figure 1As shown, it is an electric vehicle according to an embodiment. The electric vehicle in this embodiment can be applicable to household electric vehicles or shared electric vehicles. It is not provided with an ECU. The electric vehicle includes a frame and a driving control device 200. The frame is provided with a first interface 110, a driving motor 130, at least one wheel, and a plurality of electrical working units 140. The driving motor 130 and each of the electrical working units 140 are electrically connected to the first interface 110. The driving motor 130 is drivingly connected to at least one of the wheels. A battery mounting position is provided on the frame. The driving control device 200 includes a battery assembly 220, a battery management module 230, an electronic control module 250, and a second interface 210. The battery assembly 220 is detachably disposed on the battery mounting position. The battery management module 230 and the electronic control module 250 are both disposed on the battery assembly 220. The battery management module 230 is electrically connected to the battery assembly 220. The battery management module 230 is electrically connected to the electronic control module 250. The battery assembly 220, the battery management module 230, and the electronic control module 250 are all electrically connected to the second interface 210. The first interface 110 and the second interface 210 are pluggable. The driving motor 130 is electrically connected to the electronic control module 250 through the first interface 110 and the second interface 210. Each of the electrical working units 140 is electrically connected to the electronic control module 250 through the first interface 110 and the second interface 210.

[0028] In this embodiment, one of the first interface 110 and the second interface 210 is a male interface and the other is a female interface, so that the first interface 110 and the second interface 210 can be easily plugged, and when the first interface 110 and the second interface 210 are plugged, they are electrically connected.

[0029] A plurality of first sub-interfaces are provided on the first interface 110. Each first sub-interface is connected to an electrical working unit 140 through a cable, and one of the first sub-interfaces is electrically connected to the driving motor 130. A plurality of terminals are provided in each first sub-interface. The number of terminals of each first sub-interface is set according to the number of terminals required by the connected electrical working unit 140. This part of the structure belongs to the prior art and will not be described in detail in this embodiment.

[0030] A plurality of second sub - interfaces are provided on the second interface 210. Each second sub - interface corresponds to a first sub - interface. Each second sub - interface is respectively connected to the battery assembly 220, the battery management module 230, and the electric control module 250 through cables. The number of terminals of each second sub - interface is the same as the number of terminals in the corresponding first sub - interface. Each terminal is connected to the battery assembly 220, the battery management module 230, or the electric control module 250 through a cable. Similarly, the number of terminals of each second sub - interface is set according to the number of terminals required by the connected electrical working unit 140. This part of the structure belongs to the prior art and will not be described in detail in this embodiment.

[0031] In this embodiment, the electric vehicle can be a two - wheel electric vehicle or a three - wheel electric vehicle. The battery management module 230 is a BMS (Battery Management System).

[0032] In this embodiment, after the battery assembly 220 is removed from the battery installation position on the vehicle frame, only the drive motor and other electrical working units are left on the vehicle frame. Since the electric control module and the battery management module are missing on the vehicle frame, the vehicle frame is equivalent to a "hollow shell". Even if the vehicle frame is stolen, the person who steals the electric vehicle cannot drive the electric vehicle normally, effectively preventing the theft of the empty vehicle frame.

[0033] In addition, it enables the electric vehicle manufacturer and the battery manufacturer to independently produce the vehicle frame and the driving control device respectively. The electric vehicle manufacturer only produces the vehicle frame containing the drive motor and electrical working units, while the control parts such as the electric control module and the battery management module are set on the battery assembly, thus effectively reducing the production cost and assembly cost of the electric vehicle manufacturer and also making the electric vehicle easy to update and replace.

[0034] In the above embodiments, by arranging the battery management module and the electronic control module on the battery assembly, the battery management module and the electronic control module can be replaced as a whole along with the replacement of the battery assembly, so that only the controlled components such as the drive motor and the electrical working unit are left on the vehicle frame. The controlled drive motor and various electrical working units are arranged on the vehicle frame, while the control parts such as the electronic control module and the battery management module are arranged on the battery assembly, so that the controlled components and the control components are separated, effectively reducing the probability of the empty vehicle frame being stolen and improving the safety. On the other hand, when any one of the battery management module and the electronic control module fails, only the battery assembly needs to be replaced to replace the battery management module and the electronic control module, and the electrical connection with the drive motor and the electrical working unit on the vehicle frame can be achieved through the plugging of the first interface and the second interface. In addition, during operation, the operator can conveniently replace the battery assembly, and only the drive motor and the electrical working unit are left on the vehicle frame, so that the shared electric vehicle can be identified according to the battery assembly instead of the vehicle frame. When the vehicle frame is damaged, the battery assembly can be disassembled as a whole onto another empty vehicle frame, so that the vehicle frame and the battery assembly can form a new electric vehicle, effectively improving the utilization rate of the electric vehicle and saving the loss cost.

[0035] Such as Figure 2As shown, an electric vehicle according to an embodiment. The electric vehicle in this embodiment can be applied to shared electric vehicles. The electric vehicle includes a frame and a driving control device 200. The frame is provided with a first interface 110, a driving motor 130, at least one wheel, and a plurality of electrical working units 140. The driving motor 130 and each of the electrical working units 140 are electrically connected to the first interface 110. The driving motor 130 is drivingly connected to at least one of the wheels. A battery mounting position is provided on the frame. The driving control device 200 includes a battery assembly 220, a battery management module 230, an electronic control unit 240, an electronic control module 250, and a second interface 210. The battery assembly 220 is detachably disposed on the battery mounting position. The battery management module 230, the electronic control unit 240, and the electronic control module 250 are all disposed on the battery assembly 220. The battery management module 230 is electrically connected to the battery assembly 220. The electronic control unit 240 is electrically connected to the battery management module 230 and the electronic control module 250 respectively. The battery assembly 220, the electronic control unit 240, the battery management module 230, and the electronic control module 250 are all electrically connected to the second interface 210. The first interface 110 and the second interface 210 are pluggable. The driving motor 130 is electrically connected to the electronic control module 250 through the first interface 110 and the second interface 210. Each of the electrical working units 140 is electrically connected to the electronic control unit 240 and / or the electronic control module 250 through the first interface 110 and the second interface 210.

[0036] The electronic control unit 240 is an ECU. The electronic control unit 240 is used to connect to the server through a wireless communication module, receive instructions from the server, and control the operation of the electrical working units 140 on the shared electric vehicle according to the instructions from the server. For example, the electronic control unit 240 controls the unlocking, locking, and reporting of location information of the shared electric vehicle according to the instructions from the server. The battery management module 230 is used to manage the electric energy of the battery assembly 220. The electronic control module 250 is used to control the operation of the driving motor 130 of the shared electric vehicle.

[0037] In this embodiment, each of the electrical working units 140 can be connected to the electronic control unit 240 or the electronic control module 250 according to the control requirements. In one embodiment, some of the electrical working units among each of the electrical working units 140 are electrically connected to the electronic control unit 240 through the first interface 110 and the second interface 210. Another part of the electrical working units among each of the electrical working units 140 are electrically connected to the electronic control module 250 through the first interface 110 and the second interface 210.

[0038] In one embodiment, such asFigure 3 As shown, the electrical working unit includes a display screen 141, and the display screen 141 is electrically connected to the first interface 110.

[0039] In this embodiment, the display screen 141 is used to display a two-dimensional code, which is used for a user's mobile terminal to scan and connect to the server. The two-dimensional code records the address of the server. The user can communicate with the server by scanning the two-dimensional code with the mobile terminal to realize the rental and return of the shared electric vehicle. In one embodiment, the display screen 141 is electrically connected to the electronic control unit 240 through the first interface 110 and the second interface 210. Specifically, the two-dimensional code is controlled by the electronic control unit 240 to be displayed on the display screen 141. In one embodiment, each electronic control unit 240 corresponds to a two-dimensional code. In this way, whenever the battery assembly 220 is replaced, the two-dimensional code on the display screen 141 on the vehicle frame is changed to the two-dimensional code corresponding to the current electronic control unit 240, so that the two-dimensional code can be updated according to the replacement of the battery assembly 220. In this way, the two-dimensional code displayed on the display screen only corresponds to the installed driving control device, rather than the vehicle frame itself, so that the electric vehicle can be identified and distinguished according to the driving control device. In one embodiment, the two-dimensional code is a dynamic two-dimensional code, and the two-dimensional code is updated by the electronic control unit 240 according to the information sent by the server. In this embodiment, the display screen 141 is a simple display screen. For example, the display screen 141 is a black-and-white display screen, and the display screen 141 is only used for the two-dimensional code. Therefore, it can not display colors, but only display two colors, black and white. In this way, the cost of the display screen 141 can be greatly reduced. In one embodiment, a tempered glass layer is provided on the surface of the display screen. By providing the tempered glass layer, the display screen can be effectively protected from being maliciously damaged, and the service life of the display screen in the outdoor environment can be effectively extended.

[0040] In one embodiment, please refer to again Figure 3, the electrical working unit 140 further includes a vehicle lamp 142, an electric switch 143, an electronic lock 144, a horn 145, and a brake assembly 146. In this embodiment, the electronic control module 250 is also connected to electrical working units such as the vehicle lamp 142, the electric switch 143, the electronic lock 144, the horn 145, and the brake assembly 146. Among them, the vehicle lamp 142 is used for lighting, the electric switch 143 is used to control the magnitude of the electric energy input to the drive motor 130, so as to control the driving speed of the shared electric vehicle. The electronic lock 144 is used to lock the vehicle. The electronic control unit 240 is connected to the electronic lock 144 through the electronic control module. In this way, the electronic control unit 240 can realize the control of locking and unlocking the electronic lock 144. The horn 145 is used to emit a prompt sound. The brake assembly 146 includes a power-off circuit for connecting the battery assembly 220 and the drive motor 130. When the user brakes, the electronic control module 250 controls the brake assembly 146 to work, so that the power-off circuit is disconnected, and the electrical connection between the battery assembly 220 and the drive motor 130 is disconnected, so that the braking process is faster and safer. It is worth mentioning that the above electrical working units 140 such as the vehicle lamp 142 can all be realized by the prior art. In this application, no improvement has been made to its internal logic and implementation principle, which belongs to the technology that those skilled in the art can know, and will not be described in detail in this embodiment.

[0041] In one embodiment, as Figure 2 shown, the driving control device 200 further includes a positioning module 260, and the positioning module 260 is electrically connected to the electronic control unit 240. In this embodiment, the positioning module is used to obtain the current position. Specifically, the positioning module 260 and the electronic control unit 240 are both arranged on the battery assembly 220. In this way, the positioning module can obtain the position of the battery assembly 220 in real time. When the battery assembly 220 is installed on the vehicle frame, the obtained position is the position of the shared electric vehicle. The positioning module can be a GPS (Global Positioning System) module or a Beidou module. The above positioning module can be realized by the prior art. In this application, no improvement has been made to its internal logic and implementation principle, which belongs to the technology that those skilled in the art can know, and will not be described in detail in this embodiment.

[0042] In one embodiment, the battery assembly 220 includes a battery body and an integrated circuit board. The battery body is electrically connected to the second interface 210. The battery body is detachably arranged at the battery installation position. The integrated circuit board is arranged on the battery body. The battery management module 230, the electronic control unit 240, and the electronic control module 250 are all arranged on the integrated circuit board.

[0043] In this embodiment, the electronic control unit 240, the battery management module 230, and the electronic control module 250 are integrated on the integrated circuit board, which can make the overall structure of the driving control device 200 simpler, and make the battery assembly 220 easier to handle, install, and disassemble.

[0044] In one embodiment, an installation groove is provided in the battery installation position. The battery assembly is inserted into the installation groove, and a cover is provided outside the installation groove. The cover is used to seal the installation groove. In this way, when the battery assembly and the integrated circuit board are installed in the installation groove, the cover is installed on the edge of the installation groove to seal the installation groove, which can protect the battery assembly, the integrated circuit board, and the electronic control unit, the battery management module, and the electronic control module on the integrated circuit board, and has a good waterproof effect.

[0045] In one embodiment, the battery assembly has a housing, and a waterproof box is connected to the housing. The integrated circuit board is arranged in the waterproof box. In this embodiment, by arranging the integrated circuit board in the waterproof box, the waterproof effect on the electronic control unit, the battery management module, and the electronic control module on the integrated circuit board can be more effectively achieved.

[0046] In one embodiment, as Figure 1 shown, a driving control device 200 for an electric vehicle is provided, including a battery assembly 220, a battery management module 230, an electronic control module 250, and a second interface 210; the battery assembly 220 is used to be detachably arranged at the battery installation position on the frame of the electric vehicle, the battery management module 230 and the electronic control module 250 are both arranged on the battery assembly 220, the battery management module 230 is electrically connected to the battery assembly 220, the battery management module 230 is electrically connected to the electronic control module 250, and the battery assembly, the battery management module 230, and the electronic control module 250 are all electrically connected to the second interface 210;

[0047] The second interface 210 is used for pluggable connection with the first interface 110 of the electric vehicle.

[0048] In one embodiment, as Figure 2As shown in the figure, an electric vehicle driving control device 200 is provided, including a battery assembly 220, a battery management module 230, an electronic control unit 240, an electronic control module 250, and a second interface 210; the battery assembly 220 is used for detachably setting on the battery mounting position of the frame of the electric vehicle, the battery management module 230, the electronic control unit 240, and the electronic control module 250 are all arranged on the battery assembly 220, the battery management module 230 is electrically connected to the battery assembly 220, the electronic control unit 240 is electrically connected to the battery management module 230 and the electronic control module 250 respectively, and the battery assembly 220, the electronic control unit 240, the battery management module 230, and the electronic control module 250 are all electrically connected to the second interface 210;

[0049] The second interface 210 is used for pluggable connection with the first interface 110 of the electric vehicle.

[0050] The beneficial effects of the present invention are as follows: by arranging the battery management module 230, the electronic control unit 240, and the electronic control module 250 on the battery assembly 220, the battery management module 230, the electronic control unit 240, and the electronic control module 250 can be integrally replaced as the battery assembly 220 is replaced, so that only the controlled components such as the drive motor and the electrical working unit are left on the frame. In this way, when any one of the battery management module 230, the electronic control unit 240, and the electronic control module 250 fails, only the battery assembly 220 needs to be replaced, and the battery management module 230, the electronic control unit 240, and the electronic control module 250 can be replaced. Moreover, through the plugging of the first interface and the second interface 210, the electrical connection with the drive motor and the electrical working unit on the frame can be realized; in addition, during operation, the operation personnel can conveniently replace the battery assembly 220, and only the drive motor and the electrical working unit are left on the frame, so that the shared electric vehicle can be identified according to the battery assembly 220 instead of the frame; when the frame is damaged, the battery assembly 220 can be integrally disassembled onto another empty frame, and then the frame and the battery assembly 220 can form a new electric vehicle, effectively improving the utilization rate of the electric vehicle and saving the loss cost.

[0051] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0052] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. An electric vehicle, characterized in that, Comprising: A vehicle frame and a driving control device; The vehicle frame is provided with a first interface, a driving motor, at least one wheel and a plurality of electrical working units. The driving motor and each of the electrical working units are electrically connected to the first interface. The driving motor is drivingly connected to at least one of the wheels. A battery mounting position is provided on the vehicle frame; The driving control device includes a battery assembly, a battery management module, an electronic control module and a second interface. The battery assembly is detachably arranged on the battery mounting position. The battery management module and the electronic control module are both arranged on the battery assembly. The battery management module is electrically connected to the battery assembly. The battery management module is electrically connected to the electronic control module. The battery assembly, the battery management module and the electronic control module are all electrically connected to the second interface. The driving control device further includes a positioning module and an electronic control unit. The positioning module is electrically connected to the electronic control unit; The electronic control unit is arranged on the battery assembly. The electronic control unit is respectively electrically connected to the battery management module and the electronic control module. The electronic control unit is electrically connected to the second interface. Each of the electrical working units is electrically connected to the electronic control unit through the first interface and the second interface; The first interface and the second interface are pluggable. The driving motor is electrically connected to the electronic control module through the first interface and the second interface. Each of the electrical working units is electrically connected to the electronic control module through the first interface and the second interface; The battery assembly includes a battery body and an integrated circuit board. The battery body is electrically connected to the second interface. The battery body is detachably arranged on the battery mounting position. The integrated circuit board is arranged on the battery body. The battery management module, the electronic control unit and the electronic control module are all arranged on the integrated circuit board; The electrical working unit includes a display screen. The display screen is electrically connected to the first interface. The display screen is used for displaying a two-dimensional code. The two-dimensional code is a dynamic two-dimensional code. The two-dimensional code is updated by the electronic control unit according to the information sent by the server.

2. The electric vehicle according to claim 1, characterized in that, The display screen is electrically connected to the electronic control unit through the first interface and the second interface.

3. The electric vehicle according to claim 1, characterized in that, The electrical working unit further includes a vehicle lamp, a throttle, an electronic lock, a horn and a brake assembly.

4. An electric vehicle driving control device, characterized in that, It includes a battery assembly, a battery management module, an electronic control unit, an electric control module and a second interface; the battery assembly is used for being detachably arranged at a battery installation position on the frame of an electric vehicle, the battery management module, the electronic control unit and the electric control module are all arranged on the battery assembly, the battery management module is electrically connected to the battery assembly, the electronic control unit is respectively electrically connected to the battery management module and the electric control module, and the battery assembly, the electronic control unit, the battery management module and the electric control module are all electrically connected to the second interface; the second interface is used for being detachably connected to a first interface of the electric vehicle, the electronic control unit updates a two-dimensional code according to information sent by a server, the two-dimensional code is a dynamic two-dimensional code, and the two-dimensional code is displayed through a display screen of an electrical working unit.

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