A method and device for controlling charging prohibition of trailer and trailer

Abstract

This application discloses a charging prohibition control method, device, and trailer for a trailer. By acquiring the charging and discharging state of the trailer's drive power supply, if the drive power supply is in the state of being connected to the charging gun, the drive motor is controlled to keep the trailer stationary. That is, when the trailer's drive power supply is connected to the charger for charging, the drive motor is controlled to keep the trailer stationary. At this time, if the driver drives the tractor, the drive motor will output a resisting force opposite to the main driving force of the tractor to prevent the tractor and trailer from moving, thereby effectively reducing the probability of damaging the charging equipment due to the movement of the tractor and trailer.

Description

Technical Field

[0001] The present application relates to the technical field of new energy heavy-duty trucks, and specifically to a method and device for controlling charging prohibition of a trailer, and a trailer. Background Art

[0002] As the main means of land transportation, heavy trucks are increasingly used. Heavy trucks consist of tractors and trailers. With the continuous development of new energy technologies, the electrification of trailers has gradually become a development trend. By installing an electric drive system (drive motor and drive power supply) on the trailer, the trailer can cooperate with the tractor to assist in outputting driving force during driving, so as to improve the fuel economy of the vehicle and the overall driving force of the heavy truck.

[0003] When the trailer's driving power source is low on power, it needs to be charged. If the driver forgets that the trailer is charging and drives the tractor, the trailer will move with it, causing damage to the charging pile and personnel or property. Therefore, a method is needed to prohibit driving during the trailer charging process. Summary of the invention

[0004] In order to solve the above technical problems, the present application is proposed. The embodiments of the present application provide a method and device for controlling charging prohibition of a trailer and a trailer.

[0005] According to one aspect of the present application, a method for controlling a trailer during charging prohibition is provided, wherein the trailer comprises a drive motor and a drive power supply, wherein the drive motor is used to provide auxiliary drive force required for heavy truck driving, and the drive power supply is used to provide electrical energy required by the drive motor; the method for controlling a trailer during charging prohibition comprises: obtaining the charge and discharge status of the drive power supply; if the charge and discharge status of the drive power supply is a state of being connected to a charging gun, controlling the drive motor to keep the trailer parked.

[0006] In one embodiment, controlling the drive motor to keep the trailer parked includes: setting a control mode of the drive motor to a speed control mode, and setting a target speed of the drive motor to zero, so as to keep the trailer parked.

[0007] In one embodiment, controlling the drive motor to maintain the trailer parked includes: obtaining status information of a tractor connected to the trailer; wherein the status information of the tractor includes a driving status; if the status information of the tractor is a driving status, setting the control mode of the drive motor to a torque control model, and controlling the drive motor to output a stopping force in the opposite direction to the main driving force of the tractor, so as to maintain the trailer parked.

[0008] In one embodiment, the obtaining of the status information of the tractor connected to the trailer comprises: obtaining an accelerator pedal signal, an output torque signal and a gear signal of the tractor; and determining the status information of the tractor based on the accelerator pedal signal, the output torque signal and the gear signal of the tractor.

[0009] In one embodiment, determining the state information of the tractor vehicle based on the accelerator pedal signal, the torque signal and the gear signal of the tractor vehicle comprises: if the gear signal of the tractor vehicle indicates that the tractor vehicle is in a driving gear, the accelerator pedal signal of the tractor vehicle indicates that the accelerator pedal of the tractor vehicle is in an on state, and the torque signal of the tractor vehicle indicates that the output torque of the tractor vehicle is greater than zero, then determining that the state information of the tractor vehicle is a driving state.

[0010] In one embodiment, if the state information of the tractor is a driving state, setting the control mode of the drive motor to a torque control mode, and controlling the drive motor to output a stopping force opposite to the main driving force direction of the tractor to keep the trailer parked includes: if the state information of the tractor is a driving state, determining the direction of the stopping force of the drive motor based on a gear signal of the tractor to output a stopping force opposite to the main driving force direction of the tractor, and determining the magnitude of the stopping force of the drive motor based on an accelerator pedal signal and a torque signal of the tractor to keep the trailer parked.

[0011] In one embodiment, the method for controlling charging prohibition of the trailer further includes: if the charging and discharging state of the driving power supply is a state where the charging gun is not connected and the trailer is parked, setting the driving motor to a sleep mode.

[0012] In one embodiment, if the charge and discharge state of the driving power supply is a state of being connected to a charging gun, controlling the driving motor to keep the trailer parked includes: if the charge and discharge state of the driving power supply is a state of being connected to a charging gun, and a start signal of a tractor is detected, a warning signal is issued to remind the driver that the trailer is currently in a state of being connected to a charging gun.

[0013] According to another aspect of the present application, a charging prohibition control device for a trailer is provided, wherein the trailer comprises a drive motor and a drive power supply, wherein the drive motor is used to provide auxiliary driving force required for heavy truck driving, and the drive power supply is used to provide electrical energy required by the drive motor; the charging prohibition control device for the trailer comprises: a power state acquisition module, used to acquire the charging and discharging state of the drive power supply; and a motor mode setting module, used to control the drive motor to keep the trailer parked if the charging and discharging state of the drive power supply is a charging gun connected state.

[0014] According to another aspect of the present application, a trailer is provided, comprising: a drive motor and a drive power supply, wherein the drive motor is used to provide auxiliary driving force required for heavy truck driving, and the drive power supply is used to provide electrical energy required by the drive motor; such as the charging prohibition control device of the above-mentioned trailer.

[0015] The present application provides a method and device for controlling charging prohibition of a trailer, and a trailer, wherein the trailer includes a drive motor and a drive power supply, wherein the drive motor is used to provide auxiliary driving force required for the travel of the tractor and the trailer, and the drive power supply is used to provide electric energy required by the drive motor; by obtaining the charge and discharge state of the drive power supply; if the charge and discharge state of the drive power supply is a state of being connected to a charging gun, the drive motor is controlled to keep the trailer parked; that is, when the drive power supply of the trailer is connected to the charger for charging, the drive motor is controlled to keep the trailer parked, and at this time, if the driver drives the tractor, the drive motor will output a stopping force in the opposite direction of the main driving force of the tractor to prevent the tractor and the trailer from moving, thereby effectively reducing the probability of damaging the charging equipment due to towing due to the movement of the tractor and the trailer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By describing the embodiments of the present application in more detail in conjunction with the accompanying drawings, the above and other purposes, features and advantages of the present application will become more apparent. The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0017] Figure 1 It is a flowchart of a method for controlling charging prohibition of a trailer provided by an exemplary embodiment of the present application.

[0018] Figure 2 It is a structural diagram of the charging prohibition control logic of a trailer provided by an exemplary embodiment of the present application.

[0019] Figure 3 It is a structural schematic diagram of a charging prohibition control device for a trailer provided by an exemplary embodiment of the present application.

[0020] Figure 4 It is a structural diagram of an electronic device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0021] Below, the exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited to the exemplary embodiments described here.

[0022] Figure 1The flowchart of the charging prohibition control method of the trailer provided by an exemplary embodiment of the present application is shown in FIG. The trailer is connected to the tractor, and the tractor is used to provide the main driving force required for the tractor and the trailer to travel. The trailer includes a drive motor and a drive power supply, and the drive motor is used to provide the auxiliary driving force required for the tractor and the trailer to travel. The drive power supply is electrically connected to the drive motor, and the drive power supply is used to provide the electric energy required by the drive motor; Figure 1 As shown, the charging prohibition control method of the trailer includes the following steps:

[0023] Step 110: Acquire the charging and discharging status of the driving power source.

[0024] Specifically, Figure 2 As shown, the present application obtains the charging and discharging status of the driving power supply of the trailer, and sends the charging and discharging status information of the driving power supply to the trailer domain controller (Vehicle Control Unit, referred to as VCU). After receiving the charging and discharging status information of the driving power supply, the VCU determines the control strategy of the driving motor based on the charging and discharging status.

[0025] Step 120: If the charging and discharging state of the driving power source is a state of being connected to a charging gun, the driving motor is controlled to keep the trailer parked.

[0026] If the obtained charging and discharging status of the driving power source is the state of connecting to the charging gun, that is, at this time, the trailer is connected to the charging equipment (such as a charging pile, etc.) through the charging gun. At this time, if the trailer (or tractor) moves, it will pull the charging gun and cause damage to the charging equipment. Figure 2 As shown, in the present application, when the charging and discharging state of the driving power supply is the state of connecting the charging gun, the VCU sends a control signal to the motor controller (MCU) to control the driving motor to keep the trailer parked.

[0027] The present application provides a method for controlling charging prohibition of a trailer, wherein the trailer is connected to a tractor, the tractor is used to provide the main driving force required for the tractor and the trailer to travel, the trailer includes a drive motor and a drive power supply, the drive motor is used to provide the auxiliary driving force required for the tractor and the trailer to travel, the drive power supply is electrically connected to the drive motor, and the drive power supply is used to provide the electric energy required by the drive motor; by obtaining the charge and discharge state of the drive power supply; if the charge and discharge state of the drive power supply is a state of being connected to a charging gun, the drive motor is controlled to keep the trailer parked; that is, when the drive power supply of the trailer is connected to the charger for charging, the drive motor is controlled to keep the trailer parked, and at this time, if the driver drives the tractor, the drive motor will output a stopping force in the opposite direction of the main driving force of the tractor to prevent the tractor and the trailer from moving, thereby effectively reducing the probability of towing and damaging the charging equipment due to the movement of the tractor and the trailer.

[0028] In one embodiment, the specific implementation of the above step 120 may be: setting the control mode of the drive motor to a speed control mode, and setting the target speed of the drive motor to zero, so as to keep the trailer parked.

[0029] When the driving power supply is connected to the charging gun, the VCU sends an instruction to the MCU to set the control mode of the driving motor to the speed control mode and the target speed of the driving motor to zero, that is, the MCU adjusts the output torque of the driving motor by itself to achieve the speed of the driving motor to be zero. Since the driving motor is connected to the wheels of the trailer, the target speed of the driving motor is zero, which can keep the wheels of the trailer from rotating, thereby keeping the trailer parked.

[0030] In one embodiment, a specific implementation method of the above step 120 may be: obtaining the status information of the tractor connected to the trailer; if the status information of the tractor is a driving state, setting the control mode of the drive motor to a torque control mode, and controlling the drive motor to output a stopping force in the opposite direction to the main driving force of the tractor, so as to keep the trailer parked.

[0031] Among them, the status information of the tractor includes the driving status. When the driving power supply is connected to the charging gun, the VCU obtains the status information of the tractor in real time, that is, the VCU obtains in real time whether the tractor is in the driving state, so as to determine whether the driving motor needs to output torque. If the tractor is in the driving state, that is, the driver drives the tractor and performs the driving operation, the VCU sends a command to the motor controller to control the driving motor to output a stopping force in the opposite direction of the main driving force of the tractor, so as to maintain the speed of the driving motor at zero, thereby keeping the trailer parked and avoiding damage to the charging equipment.

[0032] In one embodiment, the specific implementation method of obtaining the tractor status information may be: obtaining the accelerator pedal signal, output torque signal and gear signal of the tractor; and determining the tractor status information based on the accelerator pedal signal, output torque signal and gear signal of the tractor.

[0033] Specifically, Figure 2 As shown, the VCU obtains the accelerator pedal signal, output torque signal and gear signal of the tractor, wherein the accelerator pedal signal and output torque signal are provided by the engine electronic control unit (ECU) of the tractor, and the gear signal is provided by the transmission controller (TCU) of the tractor; after obtaining the accelerator pedal signal, output torque signal and gear signal of the tractor, the VCU determines the state information of the tractor based on the accelerator pedal signal, output torque signal and gear signal, that is, determines whether the tractor is in a driving state, so that the output torque of the drive motor can be accurately controlled according to the state information of the tractor to ensure that the tractor and the trailer are parked.

[0034] In one embodiment, based on the accelerator pedal signal, torque signal and gear signal of the tractor, a specific implementation method for determining the status information of the tractor may be: if the gear signal of the tractor indicates that the tractor is in a driving gear, the accelerator pedal signal of the tractor indicates that the accelerator pedal of the tractor is in an on state, and the torque signal of the tractor indicates that the output torque of the tractor is greater than zero, then the status information of the tractor is determined to be a driving state.

[0035] If the VCU obtains that the gear signal of the tractor is a driving gear (including forward gear and reverse gear), the accelerator pedal signal is that the accelerator pedal is in the on state (that is, the throttle opening is greater than zero), and the output torque signal is that the output torque is greater than zero, it means that the tractor is outputting torque to drive the tractor and trailer forward or reverse under the operation of the driver.

[0036] In one embodiment, when the state information of the tractor is the driving state, the specific execution method of the driving motor may be: if the state information of the tractor is the driving state, the direction of the stopping force of the driving motor is determined based on the gear signal of the tractor to output a stopping force opposite to the main driving force direction of the tractor, and the magnitude of the stopping force of the driving motor is determined based on the accelerator pedal signal and torque signal of the tractor to keep the trailer parked.

[0037] If the VCU determines that the tractor is in a driving state based on the accelerator pedal signal, torque signal and gear signal of the tractor, the direction of the stopping force of the drive motor is determined based on the gear signal of the tractor. Specifically, if the gear signal of the tractor is a forward gear, the direction of the stopping force of the drive motor is determined to be backward (opposite to the forward direction of the tractor); if the gear signal of the tractor is a reverse gear, the direction of the stopping force of the drive motor is determined to be forward (opposite to the reverse direction of the tractor); and the magnitude of the stopping force of the drive motor is determined based on the accelerator pedal signal and torque signal of the tractor, that is, the magnitude of the stopping force output by the drive motor is equal to or substantially equal to the magnitude of the main driving force of the tractor, so as to ensure that the tractor cannot drive the tractor and the trailer to move, thereby avoiding damage to the charging equipment.

[0038] In one embodiment, the specific implementation method of the above step 120 can be: if the charging and discharging state of the driving power supply is a state of being connected to a charging gun, and a start signal of the tractor is detected, a warning signal is issued to remind the driver that the current trailer is in a state of being connected to a charging gun.

[0039] Specifically, when the charging and discharging state of the driving power source is the state of connecting the charging gun and the starting signal of the tractor is detected, the present application sends a warning signal (such as an audible and visual alarm signal, etc.) to the cab of the tractor to remind the driver to stop the driving operation; wherein, the starting signal can be an ignition signal, a gear shifting signal, or other signals indicating that the tractor is started or about to start, and this embodiment does not impose any limitation on this. Since the main driving force of the tractor is usually greater than the auxiliary driving force of the trailer, in order to prevent the driver from forcibly driving the tractor (such as deeply stepping on the accelerator) to cause the main driving force output by the tractor to be too large and cause damage to the connection between the tractor and the trailer, the present application sends a warning signal to remind the driver while the driving motor outputs the blocking force, so as to stop the driver's driving operation in time.

[0040] Preferably, the present application can also send out warning signals when the driver performs multiple execution actions of driving the tractor, such as when starting the key, when igniting, when engaging the forward gear or the reverse gear, and when stepping on the accelerator. The present application sends out warning signals when multiple key execution actions required for driving the tractor occur to remind the driver in time. If the driver still drives the tractor after multiple reminders, the emergency measure of the drive motor outputting reverse torque is adopted to keep the tractor and the trailer parked.

[0041] In one embodiment, the specific implementation of the above step 110 may be: identifying a charging gun insertion signal; if the charging gun insertion signal is identified, determining that the charging and discharging state of the driving power supply is a charging gun connected state.

[0042] Specifically, Figure 2 As shown, the present application can use the battery management system (BMS) to identify the charging gun insertion signal. If the charging gun insertion signal is identified, it means that the charging gun has been inserted into the charging port of the trailer. Then the charging and discharging state of the driving power supply is determined to be the charging gun connected state. At this time, the control mode of the driving motor is set to the speed control mode, and the target speed of the driving motor is set to zero. It should be understood that the present application can also identify the charging gun insertion information through other components such as the on-board charger (OBC). The present application does not limit the specific components and specific methods for identifying the charging gun insertion signal.

[0043] In one embodiment, the above-mentioned trailer charging prohibition control method may further include: if the charging and discharging state of the driving power supply is a state of not being connected to the charging gun and the trailer is parked, setting the driving motor to a sleep mode.

[0044] Specifically, if the charging and discharging state of the driving power supply is not connected to the charging gun, and the trailer is in a parked state, that is, the tractor and the trailer are parked and the trailer is not connected to the charging gun at this time, the driving motor is set to sleep mode, that is, the driving motor does not output torque, and the tractor maintains its original state to reduce energy effect.

[0045] Figure 3 1 is a schematic diagram of a charging prohibition control device for a trailer provided by an exemplary embodiment of the present application. The trailer is connected to a tractor, the tractor is used to provide the main driving force required for the tractor and the trailer to travel, the trailer includes a drive motor and a drive power supply, the drive motor is used to provide the auxiliary driving force required for the tractor and the trailer to travel, the drive power supply is electrically connected to the drive motor, and the drive power supply is used to provide the electric energy required by the drive motor; Figure 3 As shown, the charging prohibition control device 30 of the trailer includes: a power state acquisition module 31, which is used to obtain the charging and discharging state of the driving power supply; and a motor mode setting module 32, which is used to control the driving motor to keep the trailer parked if the charging and discharging state of the driving power supply is a charging gun connected state.

[0046] The present application provides a charging prohibition control device for a trailer, wherein the trailer is connected to a tractor, the tractor is used to provide the main driving force required for the tractor and the trailer to travel, the trailer includes a drive motor and a drive power supply, the drive motor is used to provide the auxiliary driving force required for the tractor and the trailer to travel, the drive power supply is electrically connected to the drive motor, and the drive power supply is used to provide the electric energy required by the drive motor; the charge and discharge state of the drive power supply is obtained through a power state acquisition module 31; if the charge and discharge state of the drive power supply is a state of connecting to a charging gun, the motor mode setting module 32 controls the drive motor to keep the trailer parked; that is, when the drive power supply of the trailer is connected to the charger for charging, the drive motor is controlled to keep the trailer parked, and at this time, if the driver drives the tractor, the drive motor will output a stopping force in the opposite direction of the main driving force of the tractor to prevent the tractor and the trailer from moving, thereby effectively reducing the probability of towing and damaging the charging equipment due to the movement of the tractor and the trailer.

[0047] In one embodiment, the motor mode setting module 32 may be further configured to: set the control mode of the drive motor to a speed control mode, and set the target speed of the drive motor to zero, so as to keep the trailer parked.

[0048] In one embodiment, the motor mode setting module 32 may be further configured to: obtain status information of the tractor connected to the trailer; if the status information of the tractor is a driving state, set the control mode of the drive motor to a torque control model, and control the drive motor to output a stopping force in the opposite direction of the main driving force of the tractor to keep the trailer parked.

[0049] In one embodiment, the motor mode setting module 32 may be further configured to: obtain status information of the tractor; wherein the status information of the tractor includes a driving status; if the status information of the tractor is a driving status, control the drive motor to output a stopping force in the opposite direction to the main driving force of the tractor, so as to maintain the rotation speed of the drive motor at zero.

[0050] In one embodiment, the motor mode setting module 32 may be further configured to: obtain the accelerator pedal signal, output torque signal and gear signal of the tractor; and determine the status information of the tractor based on the accelerator pedal signal, output torque signal and gear signal of the tractor.

[0051] In one embodiment, the motor mode setting module 32 may be further configured to determine that the state information of the tractor is a driving state if the gear signal of the tractor indicates that the tractor is in a driving gear, the accelerator pedal signal of the tractor indicates that the accelerator pedal of the tractor is in an on state, and the torque signal of the tractor indicates that the output torque of the tractor is greater than zero.

[0052] In one embodiment, the motor mode setting module 32 may be further configured as follows: if the state information of the tractor is a driving state, the direction of the stopping force of the driving motor is determined based on the gear signal of the tractor to output a stopping force opposite to the main driving force direction of the tractor, and the magnitude of the stopping force of the driving motor is determined based on the accelerator pedal signal and torque signal of the tractor to keep the trailer parked.

[0053] In one embodiment, the motor mode setting module 32 may be further configured as follows: if the charging and discharging state of the driving power source is a state of being connected to a charging gun, and a start signal of the tractor is detected, a warning signal is issued to remind the driver that the trailer is currently in a state of being connected to a charging gun.

[0054] In one embodiment, the power state acquisition module 31 may be further configured to: identify a charging gun insertion signal; if a charging gun insertion signal is identified, determine that the charging and discharging state of the driving power source is a charging gun connected state.

[0055] In one embodiment, the charging prohibition control device 30 of the trailer can be further configured to: if the charging and discharging state of the driving power supply is a state where the charging gun is not connected and the trailer is parked, the driving motor is set to a sleep mode.

[0056] The present application also provides a trailer, which is connected to a tractor, and the tractor is used to provide the main driving force required for the tractor and the trailer to travel. The trailer includes: a drive motor and a drive power supply, the drive motor is used to provide the auxiliary driving force required for the tractor and the trailer to travel, the drive power supply is electrically connected to the drive motor, and the drive power supply is used to provide the electric energy required by the drive motor; and a charging prohibition control device for the trailer as described above.

[0057] The present application provides a trailer, which is connected to a tractor, and the tractor is used to provide the main driving force required for the tractor and the trailer to travel. The trailer includes a drive motor and a drive power supply, and the drive motor is used to provide the auxiliary driving force required for the tractor and the trailer to travel. The drive power supply is electrically connected to the drive motor, and the drive power supply is used to provide the electric energy required by the drive motor; by obtaining the charge and discharge state of the drive power supply; if the charge and discharge state of the drive power supply is a state of connecting to a charging gun, the drive motor is controlled to keep the trailer parked; that is, when the drive power supply of the trailer is connected to the charger for charging, the drive motor is controlled to keep the trailer parked. At this time, if the driver drives the tractor, the drive motor will output a stopping force in the opposite direction of the main driving force of the tractor to prevent the tractor from moving, thereby effectively reducing the probability of towing and damaging the charging equipment due to the movement of the tractor and the trailer.

[0058] Below, reference Figure 4 The electronic device according to the embodiment of the present application is described. The electronic device may be any one or both of the first device and the second device, or a stand-alone device independent of them, and the stand-alone device may communicate with the first device and the second device to receive the collected input signal from them.

[0059] Figure 4 A block diagram of an electronic device according to an embodiment of the present application is illustrated.

[0060] like Figure 4 As shown, the electronic device 10 includes one or more processors 11 and a memory 12 .

[0061] The processor 11 may be a central processing unit (CPU) or other forms of processing units having data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device 10 to perform desired functions.

[0062] The memory 12 may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, a random access memory (RAM) and / or a cache memory (cache), etc. The non-volatile memory may include, for example, a read-only memory (ROM), a hard disk, a flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor 11 may run the program instructions to implement the methods of the various embodiments of the present application described above and / or other desired functions. Various contents such as input signals, signal components, noise components, etc. may also be stored in the computer-readable storage medium.

[0063] In one example, the electronic device 10 may further include: an input device 13 and an output device 14 , and these components are interconnected via a bus system and / or other forms of connection mechanisms (not shown).

[0064] When the electronic device is a stand-alone device, the input device 13 may be a communication network connector, which is used to receive the collected input signals from the first device and the second device.

[0065] In addition, the input device 13 may also include, for example, a keyboard, a mouse, and the like.

[0066] The output device 14 can output various information to the outside, including the determined distance information, direction information, etc. The output device 14 can include, for example, a display, a speaker, a printer, a communication network and a remote output device connected thereto, and the like.

[0067] Of course, to simplify, Figure 4 Only some of the components related to the present application in the electronic device 10 are shown, and components such as a bus, an input / output interface, etc. are omitted. In addition, according to specific application situations, the electronic device 10 may also include any other appropriate components.

[0068] In addition to the above-mentioned methods and devices, an embodiment of the present application may also be a computer program product, which includes computer program instructions, which, when executed by a processor, enable the processor to execute the steps of the method according to various embodiments of the present application described in the above-mentioned "Exemplary Method" section of this specification.

[0069] The computer program product may be written in any combination of one or more programming languages ​​to write program codes for performing the operations of the embodiments of the present application, including object-oriented programming languages, such as Java, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as an independent software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0070] In addition, an embodiment of the present application may also be a computer-readable storage medium on which computer program instructions are stored. When the computer program instructions are executed by a processor, the processor executes the steps of the method according to various embodiments of the present application described in the above "Exemplary Method" section of this specification.

[0071] The computer readable storage medium can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can include, for example, but is not limited to, a system, device or device of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0072] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0073] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0074] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0075] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0076] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A method for controlling a trailer's charging prohibition, characterized in that: The trailer includes a drive motor and a drive power supply, wherein the drive motor is used to provide auxiliary driving force required for the heavy truck to travel, and the drive power supply is used to provide the electric energy required by the drive motor; The charging prohibition control method of the trailer includes: Acquiring the charging and discharging status of the driving power supply; If the charging and discharging state of the driving power supply is a state of being connected to a charging gun, controlling the driving motor to keep the trailer parked; Wherein, controlling the driving motor to keep the trailer stationary includes: Acquire status information of a tractor connected to the trailer; wherein the status information of the tractor includes a driving status; If the state information of the tractor is a driving state, the control mode of the drive motor is set to a torque control mode, and the drive motor is controlled to output a stopping force opposite to the main driving force of the tractor to keep the trailer parked.

2. The method for controlling the charging prohibition of a trailer according to claim 1, characterized in that: The controlling the driving motor to keep the trailer stationary comprises: The control mode of the driving motor is set to a speed control mode, and the target speed of the driving motor is set to zero to keep the trailer parked.

3. The method for controlling the charging prohibition of a trailer according to claim 1, characterized in that: The acquiring of the status information of the tractor connected to the trailer comprises: Acquiring an accelerator pedal signal, an output torque signal, and a gear position signal of the tractor; The state information of the tractor vehicle is determined based on an accelerator pedal signal, an output torque signal and a gear position signal of the tractor vehicle.

4. The method for controlling the charging prohibition of a trailer according to claim 3, characterized in that: The determining of the state information of the tractor vehicle based on the accelerator pedal signal, the torque signal and the gear signal of the tractor vehicle comprises: If the gear signal of the tractor vehicle indicates that the tractor vehicle is in a driving gear, the accelerator pedal signal of the tractor vehicle indicates that the accelerator pedal of the tractor vehicle is in an on state, and the torque signal of the tractor vehicle indicates that the output torque of the tractor vehicle is greater than zero, then it is determined that the state information of the tractor vehicle is a driving state.

5. The method for controlling the charging prohibition of a trailer according to claim 3, characterized in that: If the state information of the tractor is a driving state, setting the control mode of the drive motor to a torque control model and controlling the drive motor to output a stopping force in a direction opposite to the main driving force of the tractor to keep the trailer parked includes: If the state information of the tractor is a driving state, the direction of the stopping force of the drive motor is determined based on the gear signal of the tractor to output a stopping force opposite to the main driving force direction of the tractor, and the magnitude of the stopping force of the drive motor is determined based on the accelerator pedal signal and torque signal of the tractor to keep the trailer parked.

6. The method for controlling the charging prohibition of a trailer according to any one of claims 1 to 5, characterized in that: The trailer charging prohibition control method further includes: If the charging and discharging state of the driving power source is a state where the charging gun is not connected and the trailer is parked, the driving motor is set to a sleep mode.

7. The method for controlling the charging prohibition of a trailer according to any one of claims 1 to 5, characterized in that: If the charging and discharging state of the driving power supply is a state of being connected to a charging gun, controlling the driving motor to keep the trailer parked includes: If the charging and discharging state of the driving power supply is a state of being connected to a charging gun, and a start signal of the tractor is detected, a warning signal is issued to remind the driver that the trailer is currently in a state of being connected to a charging gun.

8. A charging prohibition control device for a trailer, characterized in that: The trailer includes a drive motor and a drive power supply, wherein the drive motor is used to provide auxiliary driving force required for the heavy truck to travel, and the drive power supply is used to provide the electric energy required by the drive motor; The charging prohibition control device of the trailer comprises: A power supply status acquisition module, used to acquire the charge and discharge status of the driving power supply; A motor mode setting module, configured to control the drive motor to keep the trailer parked if the charge and discharge state of the drive power source is a state of being connected to a charging gun; Wherein, the motor mode setting module is configured as follows: Acquire status information of a tractor connected to the trailer; wherein the status information of the tractor includes a driving status; If the state information of the tractor is a driving state, the control mode of the drive motor is set to a torque control mode, and the drive motor is controlled to output a stopping force opposite to the main driving force of the tractor to keep the trailer parked.

9. A trailer, characterized in that: include: A drive motor and a drive power supply, wherein the drive motor is used to provide auxiliary driving force required for the heavy truck to travel, and the drive power supply is used to provide electrical energy required by the drive motor; A charging prohibition control device for a trailer as claimed in claim 8.

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