Control method and device of electric vehicle, equipment and medium

Abstract

Embodiments of the present application provide a control method and device of an electric vehicle, an electronic device and a storage medium. The electric vehicle comprises an electric trailer and a towing vehicle. The control method of the electric vehicle comprises: acquiring a state change of an electric trailer key signal and a state change of a towing vehicle key signal; identifying a driving intention of a driver according to the state change of the electric trailer key signal and the state change of the towing vehicle key signal; and selecting a corresponding control strategy based on the driving intention to control an electrical system of the electric trailer, wherein the electrical system comprises a trailer functional upper device and a trailer walking system. The method can select a corresponding control strategy according to the driving intention of the driver, so as to accurately control the electrical system of the electric trailer according to the control strategy, thereby meeting different control requirements of the driver.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a control method and device for an electric vehicle, an electronic device, and a computer-readable storage medium. Background Technology

[0002] With increasing global demand for environmental protection and energy, electric trailers, as a zero-emission and low-energy transportation method, have received growing attention. Many countries and regions are promoting the development of green logistics and encouraging the use of electric trailers for cargo transportation to reduce air pollution and carbon emissions.

[0003] Currently, for an electric trailer to operate independently, both the electric trailer and the tractor unit require a key for hard start. However, relying solely on the key signal status to determine whether to power on the electric trailer cannot meet the diverse control needs of drivers. For example, during maintenance or troubleshooting, the trailer's main function unit needs to be powered on, while the trailer's running gear needs to be powered off. Similarly, in emergency situations where the electric trailer malfunctions and cannot move normally, the trailer's main function unit needs to be powered off, while the trailer's running gear needs to be powered on. Summary of the Invention

[0004] To address the aforementioned technical problems, embodiments of this application provide a control method and apparatus for an electric vehicle, an electronic device, and a computer-readable storage medium.

[0005] In a first aspect, embodiments of this application provide a control method for an electric vehicle, the electric vehicle including an electric trailer and a tractor, the method including: acquiring state changes of a key signal of the electric trailer and state changes of a key signal of the tractor; identifying the driver's driving intention based on the state changes of the key signals of the electric trailer and the tractor; and selecting a corresponding control strategy to control the electrical system of the electric trailer based on the driving intention, the electrical system including trailer functional superstructure and trailer travel system.

[0006] In one embodiment of this application, based on the foregoing scheme, the method further includes: acquiring the charging gun signal of the electric trailer; if the charging gun signal indicates that the charging gun is not inserted, then selecting a corresponding control strategy to control the electrical system of the electric trailer based on the driving intention; if the charging gun signal indicates that the charging gun is inserted, then controlling the shutdown of the trailer's travel system, and selecting a corresponding control strategy to control the trailer's functional superstructure based on the driving intention.

[0007] In one embodiment of this application, based on the foregoing scheme, the method further includes: if the key signal of the tractor remains in the off state and the key signal of the electric trailer switches from the off state to the on state, then the driving intention is determined to be that the electric trailer is powered on independently, and the control strategy is to control the activation of the trailer's functional components and keep the trailer's travel system off; if the key signal of the tractor remains in the off state and the key signal of the electric trailer switches from the on state to the off state, then the driving intention is determined to be that the electric trailer is powered off and put into hibernation, and the control strategy is to control the shutdown of the electric trailer's electrical system.

[0008] In one embodiment of this application, based on the foregoing scheme, the method further includes: if the key signal of the electric trailer remains in the on state and the key signal of the tractor switches from the off state to the on state, then the driving intention is determined to be that the electric vehicle is powered on and running, and the control strategy is to control the start of the electrical system of the electric trailer; if the key signal of the electric trailer remains in the on state and the key signal of the tractor switches from the on state to the off state, then the driving intention is determined to be that the electric vehicle is powered off and going into hibernation, and the control strategy is to control the shutdown of the electrical system of the electric trailer.

[0009] In one embodiment of this application, based on the foregoing scheme, the method further includes: if the key signal of the tractor remains in the on state and the key signal of the electric trailer switches from the off state to the on state, then the driving intention is determined to be that the electric vehicle is powered on and running, and the control strategy is to control the start of the electrical system of the electric trailer; if the key signal of the tractor remains in the on state and the key signal of the electric trailer switches from the on state to the off state, then the driving intention is determined to be that the electric trailer is powered off and going into hibernation, and the control strategy is to control the shutdown of the trailer's functional components while keeping the trailer's travel system running.

[0010] In one embodiment of this application, based on the foregoing scheme, the method further includes: if the key signal of the electric trailer remains in the off state and the key signal of the tractor switches from the off state to the on state, then the driving intention is determined to be that the electric vehicle is powered on and running, and the control strategy is to control the start of the electrical system of the electric trailer; if the key signal of the electric trailer remains in the off state and the key signal of the tractor switches from the on state to the off state, then the driving intention is determined to be that the electric vehicle is powered off and going into hibernation, and the control strategy is to control the shutdown of the electrical system of the electric trailer.

[0011] In one embodiment of this application, based on the foregoing scheme, the method further includes: if the key signal of the electric trailer switches from an off state to an on state, and the key signal of the tractor switches from an off state to an on state, then the driving intention is determined to be that the electric vehicle is powered on and running, and the control strategy is to control the starting of the electrical system of the electric trailer; if the key signal of the electric trailer switches from an on state to an off state, and the key signal of the tractor switches from an on state to an off state, then the driving intention is determined to be that the electric vehicle is powered off and going into sleep mode, and the control strategy is to control the shutting down of the electrical system of the electric trailer; if the key signal of the electric trailer switches from an on state to an off state, and the key signal of the tractor switches from an off state to an on state, then the driving intention is determined to be that the electric vehicle is powered on and running, and the control strategy is to control the starting of the electrical system of the electric trailer; if the key signal of the electric trailer switches from an off state to an on state, and the key signal of the tractor switches from an on state to an off state, then the driving intention is determined to be that the electric vehicle is powered off and going into sleep mode, and the control strategy is to control the shutting down of the electrical system of the electric trailer.

[0012] Secondly, embodiments of this application provide a control device for an electric vehicle, the electric vehicle including an electric trailer and a tractor, the device including: a signal acquisition module configured to acquire state changes of the key signal of the electric trailer and the key signal of the tractor; an identification module configured to identify the driver's driving intention based on the state changes of the key signal of the electric trailer and the key signal of the tractor; and a control module configured to select a corresponding control strategy to control the electrical system of the electric trailer based on the driving intention, the electrical system including trailer functional superstructure and trailer travel system.

[0013] Thirdly, embodiments of this application provide an electronic device, including: one or more processors; and a storage device for storing one or more programs, which, when executed by the one or more processors, cause the electronic device to implement the electric vehicle control method as described above.

[0014] Fourthly, embodiments of this application provide a computer-readable storage medium storing computer-readable instructions thereon, which, when executed by a computer's processor, cause the computer to perform the electric vehicle control method described above.

[0015] In the technical solution provided in the embodiments of this application, the state changes of the key signal of the electric trailer and the key signal of the tractor are acquired, and the driver's driving intention is identified based on the state changes of the key signal of the electric trailer and the key signal of the tractor. The corresponding control strategy is selected according to the driver's driving intention, so as to accurately control the trailer function superstructure and trailer travel system of the electric trailer according to the control strategy to meet the different control needs of the driver.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0018] Figure 1 This is an exemplary embodiment of the present application illustrating a system architecture diagram for controlling an electric vehicle;

[0019] Figure 2 This is a flowchart illustrating the steps of controlling an electric vehicle in an exemplary embodiment of this application;

[0020] Figure 3 This is a schematic diagram illustrating a summary of a driver's driving intentions, as shown in an exemplary embodiment of this application.

[0021] Figure 4 This is a block diagram illustrating a control device for an electric vehicle, as shown in an exemplary embodiment of this application;

[0022] Figure 5 A schematic diagram of the structure of a computer system suitable for implementing the electronic device of the present application is shown. Detailed Implementation

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0024] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0025] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0026] In this application, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0027] Currently, for an electric trailer to operate independently, both the electric trailer and the tractor need to be hard-started using a key. However, relying solely on the key signal status of the electric trailer to determine whether to power it on cannot meet the different control needs of drivers.

[0028] For example, when performing maintenance or troubleshooting on an electric trailer, it is necessary to power on the trailer function unit and power off the trailer travel system. In certain emergency situations where the electric trailer malfunctions and cannot travel normally, it is necessary to power off the trailer function unit and power on the trailer travel system.

[0029] To address the aforementioned problems, this embodiment provides a control method and apparatus for electric vehicles, an electronic device, and a computer-readable storage medium, which are described in detail below.

[0030] Figure 1 This is an exemplary embodiment of the present application illustrating a system architecture diagram for controlling an electric vehicle. Figure 1 As shown, the system includes a signal acquisition module, a data processing module, and a power-on control module; the power-on control module is deployed on the electric trailer, while the signal acquisition module and the data processing module can be deployed on the electric trailer or the tractor.

[0031] Specifically, the signal acquisition module is used to collect the status changes of the tractor's key signal, the electric trailer's key signal, and the charging gun signal, and transmits the collected signals to the data processing module. Subsequently, the data processing module identifies the driver's driving intention based on the status changes of the key signal, the electric trailer's key signal, and the charging signal, and sends the control strategy corresponding to the driving intention to the power-on control module. Finally, the power-on control module controls the electric trailer's electrical system according to the control strategy transmitted by the data processing module.

[0032] Please see Figure 2 , Figure 2 This is a flowchart illustrating the steps of controlling an electric vehicle as shown in an exemplary embodiment of this application. Figure 2 As shown, controlling the electric vehicle includes at least S210 to S230, and the execution entity in this application embodiment can be as follows: Figure 1 The data processing module shown. S210 to S230 are described in detail below:

[0033] S210, acquire the state changes of the key signal of the electric trailer and the key signal of the tractor;

[0034] S220 identifies the driver's driving intention based on changes in the key signal status of the electric trailer and the key signal status of the tractor.

[0035] S230 controls the electrical system of the electric trailer by selecting the corresponding control strategy based on the driver's intention. The electrical system includes the trailer's functional superstructure and the trailer's travel system.

[0036] The following is a detailed description of these three steps.

[0037] In S210, the key signal state of the electric trailer includes an on state and an off state. Therefore, the state changes of the key signal of the electric trailer include switching from the off state to the on state, and switching from the on state to the off state. Similarly, the key signal state of the tractor unit includes an on state and an off state, and the state changes of the tractor unit's key signal also include switching from the off state to the on state, and switching from the on state to the off state.

[0038] The status changes of the key signal of the electric trailer and the key signal of the tractor can be collected and acquired through the CAN bus or wirelessly (including WIFI and Bluetooth).

[0039] It should be noted that, in addition to acquiring the status changes of the key signal of the electric trailer and the key signal of the tractor, it can also acquire the charging gun signal of the electric trailer. The charging gun signal of the electric trailer can indicate whether the charging gun is not inserted or whether the charging gun is inserted.

[0040] In S220, the driver's driving intention can be segmented based on changes in the state of the key signal of the electric trailer and the key signal of the tractor. Driving intention refers to the action or effect the driver desires the electric vehicle to perform at a specific moment. (See also...) Figure 3 , Figure 3 This is a schematic diagram illustrating a summary of a driver's driving intentions, as shown in an exemplary embodiment of this application. Figure 3 The driver's driving intentions are categorized into 12 types, as follows:

[0041] Firstly, if the tractor's key signal remains in the off state, and the electric trailer's key signal switches from the off state to the on state, such as Figure 3 If the state of the electric vehicle changes from a to d, it is determined that the driver's driving intention is to require the electric trailer to be powered independently.

[0042] Secondly, if the tractor's key signal remains in the off state, and the electric trailer's key signal switches from the on state to the off state, such as Figure 3 If the state of the electric vehicle changes from d to a, then the driver's intention is to de-energize and put the electric trailer into hibernation mode.

[0043] Third, if the key signal of the electric trailer remains in the "on" state, and the key signal of the tractor changes from the "off" state to the "on" state, such as Figure 3 If the state of the electric vehicle changes from d to b, then the driver's intention is to power on the electric vehicle.

[0044] Fourth, if the key signal of the electric trailer remains in the 'on' state, and the key signal of the tractor changes from the 'on' state to the 'off' state, such as... Figure 3 If the state of the electric vehicle changes from b to d, then the driver's intention is to require the electric vehicle to be powered down and put into hibernation.

[0045] Fifth, if the tractor's key signal remains in the "on" state, and the electric trailer's key signal switches from the "off" state to the "on" state, such as... Figure 3 If the state of the electric vehicle changes from c to b, then the driver's intention is to power on the electric vehicle.

[0046] Sixth, if the tractor's key signal remains in the "on" state, and the electric trailer's key signal switches from the "on" state to the "off" state, such as... Figure 3 If the state of the electric vehicle changes from b to c, it is determined that the driver's driving intention is to require the electric trailer to be powered down and put into hibernation.

[0047] Seventh, if the key signal of the electric trailer remains in the off state, and the key signal of the tractor changes from the off state to the on state, such as Figure 3 If the state of the electric vehicle changes from a to c, then the driver's intention is to power on the electric vehicle.

[0048] Eighth, if the key signal of the electric trailer remains in the off state, and the key signal of the tractor changes from the on state to the off state, such as Figure 3 If the state of the electric vehicle changes from c to a, then the driver's intention is to require the electric vehicle to be powered down and put into sleep mode.

[0049] Ninth, if the key signal of the electric trailer switches from the off state to the on state, and the key signal of the tractor switches from the off state to the on state, such as Figure 3 If the state of the electric vehicle changes from a to b, then the driver's intention is to power on the electric vehicle.

[0050] Tenth, if the key signal of the electric trailer switches from the open state to the closed state, and the key signal of the tractor switches from the open state to the closed state, such as Figure 3 If the state of the electric vehicle changes from b to a, then the driver's intention is to require the electric vehicle to be powered down and put into hibernation.

[0051] Eleventh, if the key signal of the electric trailer switches from the on state to the off state, and the key signal of the tractor switches from the off state to the on state, such as Figure 3 If the state of the electric vehicle changes from d to c, then the driver's intention is to power on the electric vehicle.

[0052] Twelfth, if the key signal of the electric trailer switches from the off state to the on state, and the key signal of the tractor switches from the on state to the off state, such as Figure 3 If the state of the electric vehicle changes from c to d, it is determined that the driver's driving intention is to require the electric vehicle to be powered down and put into hibernation.

[0053] In S230, the control strategy includes controlling the trailer functional superstructure and trailer running gear systems of the electric trailer. The trailer functional superstructure refers to specific functions or equipment attached to or mounted on the electric trailer, such as a mixing tank. The trailer running gear systems refer to the various components and systems that affect the movement of the electric trailer, such as the braking system, suspension system, and steering system lights.

[0054] Because the charging gun signal indicates whether the charging gun is not inserted or is inserted, and the charging gun signal affects the final control strategy, the control strategy for a charging gun signal indicating that the charging gun is not inserted differs slightly from that for a charging gun signal indicating that the charging gun is inserted.

[0055] When the charging gun signal indicates that the charging gun is not inserted, the corresponding control strategy is selected based on the driver's intention to control the electrical system of the electric trailer. The selected control strategies include the following:

[0056] If it is determined that the driver's driving intention is to require the electric trailer to be powered independently, then control the start of the trailer's function loading device and keep the trailer's travel system off.

[0057] If it is determined that the driver's driving intention is to require the electric trailer to be powered down and put into hibernation, and the key signal of the tractor remains in the off state, then the electrical system of the electric trailer is shut down.

[0058] If it is determined that the driver's driving intention is to require the electric trailer to be powered off and put into hibernation, and the key signal of the tractor remains in the on state, then the trailer's functional superstructure is shut down, while the trailer's travel system remains running.

[0059] If it is determined that the driver's driving intention is to require the electric vehicle to be powered down and put into hibernation, then control the shutdown of the electric trailer's electrical system;

[0060] If it is determined that the driver's intention is to power up the electric vehicle, then the electrical system of the electric trailer is controlled to start.

[0061] When the charging gun signal indicates that the charging gun is inserted, meaning that the electric vehicle is prohibited from moving, the trailer's travel system is shut down. Based on the driver's intention, a corresponding driving strategy is selected to control the trailer's functional superstructure. The selected control strategies include the following:

[0062] If it is determined that the driver's driving intention is to require the electric trailer to be powered independently, then control the start of the trailer's function loading device and keep the trailer's travel system off.

[0063] If it is determined that the driver's driving intention is to require the electric trailer to be powered down and put into hibernation, then the electrical system of the electric trailer is shut down.

[0064] If it is determined that the driver's driving intention is to require the electric vehicle to be powered down and put into hibernation, then control the shutdown of the electric trailer's electrical system;

[0065] If it is determined that the driver's driving intention is to power up the electric vehicle, then the trailer function of the electric trailer is activated, while the trailer's travel system remains off.

[0066] As can be seen from the above, this embodiment acquires the state changes of the key signal of the electric trailer and the key signal of the tractor, and identifies the driver's driving intention based on the state changes of the key signal of the electric trailer and the key signal of the tractor. Based on the driver's driving intention, a corresponding control strategy is selected, thereby accurately controlling the trailer function superstructure and trailer travel system of the electric trailer according to the control strategy to meet the different control needs of the driver.

[0067] Figure 4 This is a block diagram illustrating a control device for an electric vehicle, as shown in an exemplary embodiment of this application. Figure 4 As shown, the control device for this exemplary electric vehicle includes:

[0068] The signal acquisition module 410 is configured to acquire the state changes of the key signal of the electric trailer and the key signal of the tractor; the recognition module 420 is configured to recognize the driver's driving intention based on the state changes of the key signal of the electric trailer and the key signal of the tractor; the control module 430 is configured to select the corresponding control strategy based on the driving intention to control the electrical system of the electric trailer, the electrical system including the trailer functional superstructure and the trailer travel system.

[0069] In this exemplary electric vehicle control device, the state changes of the key signal of the electric trailer and the key signal of the tractor are acquired, and the driver's driving intention is identified based on the state changes of the key signals of the electric trailer and the tractor. The corresponding control strategy is selected according to the driver's driving intention, thereby precisely controlling the trailer function superstructure and trailer travel system of the electric trailer according to the control strategy to meet the different control needs of the driver.

[0070] In another exemplary embodiment, the control device for the electric vehicle further includes a charging gun signal acquisition module, a first control module, and a second control module.

[0071] The charging gun signal acquisition module is configured to acquire the charging gun signal of the electric trailer; the first control module is configured to select the corresponding control strategy to control the electrical system of the electric trailer based on the driver's intention if the charging gun signal indicates that the charging gun is not inserted; the second control module is configured to control the shutdown of the trailer's travel system if the charging gun signal indicates that the charging gun is inserted, and select the corresponding control strategy to control the trailer's functional superstructure based on the driver's intention.

[0072] In another exemplary embodiment, the control device for the electric vehicle further includes an independent power-on unit for the electric trailer and a first power-off sleep unit for the electric trailer.

[0073] The electric trailer independent power-on unit is configured such that if the tractor's key signal remains in the off state and the electric trailer's key signal switches from the off state to the on state, the driving intention is determined to be independent power-on of the electric trailer, and the control strategy is to control the start of the trailer's functional components while keeping the trailer's travel systems off. The first electric trailer power-off hibernation unit is configured such that if the tractor's key signal remains in the off state and the electric trailer's key signal switches from the on state to the off state, the driving intention is determined to be power-off hibernation of the electric trailer, and the control strategy is to control the shutdown of the electric trailer's electrical system.

[0074] In another exemplary embodiment, the control device for the electric vehicle further includes a first electric vehicle power-on unit and a first electric vehicle power-off sleep unit.

[0075] The first electric vehicle power-on unit is configured to determine the driving intention as powering on the electric vehicle and the control strategy as controlling the start of the electric trailer's electrical system if the key signal of the electric trailer remains in the on state and the key signal of the tractor changes from the off state to the on state. The first electric vehicle power-off hibernation unit is configured to determine the driving intention as powering off the electric vehicle and the control strategy as controlling the shutdown of the electric trailer's electrical system if the key signal of the electric trailer remains in the on state and the key signal of the tractor changes from the on state to the off state.

[0076] In another exemplary embodiment, the control device for the electric vehicle further includes a second electric vehicle power-on unit and a second electric trailer power-off sleep unit.

[0077] The second electric vehicle power-on unit is configured such that if the key signal of the tractor remains in the on state and the key signal of the electric trailer switches from the off state to the on state, the driving intention is determined to be powering on the electric vehicle, and the control strategy is to control the starting of the electric trailer's electrical system; the second electric trailer power-off sleep unit is configured such that if the key signal of the tractor remains in the on state and the key signal of the electric trailer switches from the on state to the off state, the driving intention is determined to be powering off the electric trailer, and the control strategy is to control the shutdown of the trailer's functional components while keeping the trailer's running system running.

[0078] In another exemplary embodiment, the control device for the electric vehicle further includes a third electric vehicle power-on unit and a second electric vehicle power-off sleep unit.

[0079] The third electric vehicle power-on unit is configured to determine the driving intention as powering on the electric vehicle and the control strategy as controlling the start of the electric trailer's electrical system if the key signal of the electric trailer remains in the off state and the key signal of the tractor changes from the off state to the on state. The second electric vehicle power-off hibernation unit is configured to determine the driving intention as powering off the electric vehicle and the control strategy as controlling the shutdown of the electric trailer's electrical system if the key signal of the electric trailer remains in the off state and the key signal of the tractor changes from the on state to the off state.

[0080] In another exemplary embodiment, the control device for the electric vehicle further includes a fourth electric vehicle power-on unit, a third electric vehicle power-off sleep unit, a fifth electric vehicle power-on unit, and a fourth electric vehicle power-off sleep unit.

[0081] The fourth electric vehicle power-on unit is configured to determine the driving intention as electric vehicle power-on operation if the key signal of the electric trailer switches from the off state to the on state, and the key signal of the tractor switches from the off state to the on state, and the control strategy is to control the start of the electric trailer's electrical system; the third electric vehicle power-off sleep unit is configured to determine the driving intention as electric vehicle power-off sleep if the key signal of the electric trailer switches from the on state to the off state, and the key signal of the tractor switches from the on state to the off state, and the control strategy is to control the shutdown of the electric trailer's electrical system. The fifth electric vehicle power-on unit is configured such that if the key signal of the electric trailer switches from the open state to the open state, and the key signal of the tractor switches from the open state to the open state, the driving intention is determined to be to power on the electric vehicle and the control strategy is to control the start of the electric trailer's electrical system; the fourth electric vehicle power-off hibernation unit is configured such that if the key signal of the electric trailer switches from the open state to the open state, and the key signal of the tractor switches from the open state to the open state, the driving intention is determined to be to power off the electric vehicle and the control strategy is to control the shutdown of the electric trailer's electrical system.

[0082] It should be noted that the electric vehicle control device and the electric vehicle control method provided in the above embodiments belong to the same concept. The specific operation methods of each module and unit have been described in detail in the method embodiments and will not be repeated here. In practical applications, the electric vehicle control device provided in the above embodiments can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. This is not a limitation here.

[0083] Embodiments of this application also provide an electronic device, including: one or more processors; and a storage device for storing one or more programs, which, when executed by one or more processors, cause the electronic device to implement the electric vehicle control method provided in the above embodiments.

[0084] Figure 5 A schematic diagram of a computer system suitable for implementing the embodiments of this application is shown. It should be noted that... Figure 5 The computer system 500 of the electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0085] like Figure 5 As shown, the computer system 500 includes a Central Processing Unit (CPU) 501, which can perform various appropriate actions and processes, such as executing the methods described in the above embodiments, based on programs stored in Read-Only Memory (ROM) 502 or programs loaded from storage portion 508 into Random Access Memory (RAM) 503. The RAM 503 also stores various programs and data required for system operation. The CPU 501, ROM 502, and RAM 503 are interconnected via a bus 504. An Input / Output (I / O) interface 505 is also connected to the bus 504.

[0086] The following components are connected to I / O interface 505: an input section 506 including a keyboard, mouse, etc.; an output section 507 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to I / O interface 505 as needed. Removable media 511, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., are installed on drive 510 as needed so that computer programs read from them can be installed into storage section 508 as needed.

[0087] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program including a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 509, and / or installed from removable medium 511. When the computer program is executed by central processing unit (CPU) 501, it performs various functions defined in the system of this application.

[0088] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, carrying a computer-readable computer program. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media can also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0089] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0090] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0091] Another aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the control method for the electric vehicle as described above. This computer-readable storage medium may be included in the electronic device described in the above embodiments, or it may exist independently and not incorporated into the electronic device.

[0092] Another aspect of this application provides a computer program product or computer program including computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the electric vehicle control method provided in the various embodiments described above.

[0093] The above description is merely a preferred exemplary embodiment of this application and is not intended to limit the implementation of this application. Those skilled in the art can easily make corresponding modifications or alterations based on the main concept and spirit of this application. Therefore, the scope of protection of this application should be determined by the scope of protection claimed in the claims.

Claims

1. A control method for an electric vehicle, characterized in that, The electric vehicle includes an electric trailer and a tractor, and the method includes: Acquire the state changes of the key signal of the electric trailer and the key signal of the tractor; The driver's driving intention is identified based on the state changes of the key signal of the electric trailer and the key signal of the tractor. Based on the driving intention, a corresponding control strategy is selected to control the electrical system of the electric trailer. The electrical system includes the trailer functional superstructure and the trailer travel system. If the key signal of the tractor remains in the off state and the key signal of the electric trailer switches from the off state to the on state, then the driving intention is determined to be to independently power on the electric trailer, and the control strategy is to control the start of the trailer's functional components and keep the trailer's travel system off. If the key signal of the tractor remains in the off state and the key signal of the electric trailer switches from the on state to the off state, then the driving intention is determined to be that the electric trailer is powered off and put into hibernation, and the control strategy is to control the shutdown of the electrical system of the electric trailer. If the key signal of the tractor remains in the open state, and the key signal of the electric trailer switches from the off state to the open state, then the driving intention is determined to be to power on the electric vehicle and start it, and the control strategy is to control the start of the electrical system of the electric trailer. If the key signal of the tractor remains in the on state and the key signal of the electric trailer switches from the on state to the off state, then the driving intention is determined to be that the electric trailer is powered off and put into hibernation. The control strategy is to control the shutdown of the trailer's functional components and keep the trailer's travel system running.

2. The method according to claim 1, characterized in that, The method further includes: Obtain the charging gun signal of the electric trailer; If the charging gun signal indicates that the charging gun is not inserted, then the corresponding control strategy is selected based on the driving intention to control the electrical system of the electric trailer; If the charging gun signal indicates that the charging gun has been inserted, the trailer's travel system is shut down, and a corresponding control strategy is selected based on the driver's intention to control the trailer's functional components.

3. The method according to claim 1 or 2, characterized in that, The method further includes: If the key signal of the electric trailer remains in the open state, and the key signal of the tractor changes from the off state to the open state, then the driving intention is determined to be to power on the electric vehicle and start it, and the control strategy is to control the start of the electrical system of the electric trailer. If the key signal of the electric trailer remains in the on state, and the key signal of the tractor changes from the on state to the off state, then the driving intention is determined to be that the electric vehicle is powered off and put into hibernation, and the control strategy is to control the shutdown of the electrical system of the electric trailer.

4. The method according to claim 1 or 2, characterized in that, The method further includes: If the key signal of the electric trailer remains in the off state, and the key signal of the tractor changes from the off state to the on state, then the driving intention is determined to be to power on the electric vehicle and start it, and the control strategy is to control the start of the electrical system of the electric trailer. If the key signal of the electric trailer remains in the off state, and the key signal of the tractor switches from the on state to the off state, then the driving intention is determined to be that the electric vehicle is powered off and put into hibernation, and the control strategy is to control the shutdown of the electrical system of the electric trailer.

5. The method according to claim 1 or 2, characterized in that, The method further includes: If the key signal of the electric trailer switches from the off state to the on state, and the key signal of the tractor switches from the off state to the on state, then the driving intention is determined to be to power on the electric vehicle and start it, and the control strategy is to control the start of the electrical system of the electric trailer. If the key signal of the electric trailer switches from the open state to the closed state, and the key signal of the tractor switches from the open state to the closed state, then the driving intention is determined to be that the electric vehicle is powered off and put into hibernation, and the control strategy is to control and shut down the electrical system of the electric trailer. If the key signal of the electric trailer switches from the open state to the closed state, and the key signal of the tractor switches from the closed state to the open state, then the driving intention is determined to be to power on the electric vehicle and start it, and the control strategy is to control the start of the electrical system of the electric trailer. If the key signal of the electric trailer switches from the off state to the on state, and the key signal of the tractor switches from the on state to the off state, then the driving intention is determined to be that the electric vehicle is powered off and put into hibernation, and the control strategy is to control the shutdown of the electrical system of the electric trailer.

6. A control device for an electric vehicle, characterized in that, The electric vehicle includes an electric trailer and a tractor, and the device includes: The signal acquisition module is configured to acquire the state changes of the key signal of the electric trailer and the state changes of the key signal of the tractor. The identification module is configured to identify the driver's driving intention based on the state changes of the key signal of the electric trailer and the key signal of the tractor. The control module is configured to select a corresponding control strategy based on the driving intention to control the electrical system of the electric trailer, the electrical system including trailer functional superstructure and trailer travel system; An independent power-on unit for electric trailers is configured such that if the key signal of the tractor remains in the off state and the key signal of the electric trailer switches from the off state to the on state, the driving intention is determined to be to independently power on the electric trailer. The control strategy is to control the activation of the trailer's functional components and keep the trailer's travel system off. The first electric trailer power-off unit is configured to determine that the driving intention is to power off and put the electric trailer into hibernation if the key signal of the tractor remains in the off state and the key signal of the electric trailer switches from the on state to the off state, and the control strategy is to control the shutdown of the electrical system of the electric trailer. The second electric vehicle power-on unit is configured to determine that the driving intention is to power on the electric vehicle and the control strategy is to control the start of the electrical system of the electric trailer if the key signal of the tractor remains in the open state and the key signal of the electric trailer switches from the off state to the open state. The second electric trailer power-off hibernation unit is configured such that if the key signal of the tractor remains in the on state and the key signal of the electric trailer switches from the on state to the off state, the driving intention is determined to be that the electric trailer is in power-off hibernation, and the control strategy is to control the shutdown of the trailer function superstructure and keep the trailer travel system running.

7. An electronic device, characterized in that, include: One or more processors; A storage device for storing one or more programs, which, when executed by one or more processors, cause the electronic device to implement the control method for an electric vehicle as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, It stores computer-readable instructions that, when executed by a computer's processor, cause the computer to perform the control method for the electric vehicle as described in any one of claims 1 to 5.

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