Tarpaulin device control system and vehicle

Abstract

The present invention discloses a tarpaulin device control system and a vehicle, relating to the field of vehicle technology, and is intended to solve the problem of how to improve the pressure stability of the tarpaulin device during opening and closing. The tarpaulin device control system includes a tarpaulin device, a drive device, a detection device, and a controller. The tarpaulin device is adapted to be slidably mounted on a vehicle body; the drive device is adapted to provide driving force for the tarpaulin device; and the detection device is adapted to detect vehicle driving information. The controller is electrically connected to the tarpaulin device, the drive device, and the detection device, and is configured to: obtain a resistance value encountered by the tarpaulin device during opening and closing based on the vehicle driving information detected by the detection device; and determine the magnitude of the driving force provided by the drive device based on the resistance value encountered by the tarpaulin device during opening and closing.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a tarpaulin device control system and a vehicle. Background Art

[0002] At present, with the continuous development of automobile technology and the increasing demand of consumers for automobile functions and driving experience, convertible cars, as a type of car that can provide a unique driving experience, have been loved by more and more consumers.

[0003] However, convertible cars usually lower or unfold the tarpaulin by controlling the operation of a hydraulic pump and the opening and closing of a control valve. However, under some complex operating conditions (such as vehicle acceleration), the tarpaulin is prone to opening or closing unevenly during the raising and lowering process, thereby affecting the user's driving experience. Summary of the Invention

[0004] The purpose of this application is to provide a tarpaulin device control system and a vehicle, aiming to solve the problem of how to improve the pressure stability during the opening and closing process of the tarpaulin device.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a tarpaulin device control system, which includes a tarpaulin device, a driving device, a detection device and a controller, wherein the tarpaulin device is suitable for being slidably arranged on a vehicle body; the driving device is suitable for providing driving force for the tarpaulin device; the detection device is suitable for detecting driving information of the vehicle; the controller is electrically connected to the tarpaulin device, the driving device and the detection device, and the controller is configured to: obtain the resistance value encountered by the tarpaulin device when opening and closing according to the vehicle driving information detected by the detection device; and determine the magnitude of the driving force provided by the driving device according to the resistance value encountered by the tarpaulin device when opening and closing.

[0007] In this way, by electrically connecting the controller to the tarpaulin device, the driving device and the detection device, the controller can read the vehicle driving information detected by the detection device, and thus obtain the resistance value encountered by the tarpaulin device when opening and closing based on the vehicle driving information detected by the detection device. According to the resistance value encountered by the tarpaulin device when opening and closing, the size of the driving force provided by the driving device is determined to improve the pressure stability during the opening and closing process of the tarpaulin device and enhance the user's driving experience.

[0008] In some embodiments, the tarpaulin device control system further includes a speed detection device electrically connected to the controller, the speed detection device being suitable for detecting the actual opening and closing speed of the tarpaulin device; determining the magnitude of the driving force provided by the driving device according to the resistance value encountered when the tarpaulin device is opened and closed, including: determining the magnitude of the driving force provided by the driving device according to the resistance value encountered when the tarpaulin device is opened and closed and the actual opening and closing speed of the tarpaulin device, so as to make the actual opening and closing speed of the tarpaulin device reach a preset opening and closing speed.

[0009] In some embodiments, the detection device includes a speed sensor electrically connected to the controller, and the speed sensor is suitable for detecting the driving speed of the vehicle; the vehicle driving information at least includes the driving speed value of the vehicle.

[0010] In some embodiments, the resistance value encountered by the tarpaulin device when opening and closing is obtained based on the vehicle driving information detected by the detection device, including: obtaining the resistance value encountered by the tarpaulin device when opening and closing based on the vehicle driving speed value detected by the speed sensor, and the vehicle driving speed value is positively correlated with the resistance value encountered by the tarpaulin device when opening and closing.

[0011] In some embodiments, the detection device further includes an acceleration sensor electrically connected to the controller, and the acceleration sensor is suitable for detecting the acceleration value of the vehicle; the vehicle driving information at least includes the acceleration value of the vehicle.

[0012] In some embodiments, the resistance value encountered by the tarpaulin device when opening and closing is obtained based on the vehicle driving information detected by the detection device, including: obtaining the resistance value encountered by the tarpaulin device when opening and closing based on the acceleration value of the vehicle detected by the acceleration sensor, and the acceleration value of the vehicle is positively correlated with the resistance value encountered by the tarpaulin device when opening and closing.

[0013] In some embodiments, the detection device further includes a wind speed detection device electrically connected to the controller, and the wind speed detection device is suitable for detecting the wind speed of the vehicle when it is stationary; the vehicle driving information at least includes the wind speed value when the vehicle is stationary.

[0014] In some embodiments, the resistance value encountered by the tarpaulin device when opening and closing is obtained based on the vehicle driving information detected by the detection device, including: obtaining the resistance value encountered by the tarpaulin device when opening and closing based on the wind speed value detected by the wind speed detection device when the vehicle is stationary, and the wind speed value when the vehicle is stationary is positively correlated with the resistance value encountered by the tarpaulin device when opening and closing.

[0015] In some embodiments, the detection device further includes a tarpaulin load detection device electrically connected to the controller, the tarpaulin load detection device is suitable for detecting the load value of the tarpaulin device, and the vehicle driving information includes at least the load value of the tarpaulin device.

[0016] In some embodiments, the resistance value encountered by the tarpaulin device when opening and closing is obtained based on the vehicle driving information detected by the detection device, including: obtaining the resistance value encountered by the tarpaulin device when opening and closing based on the load value of the tarpaulin device detected by the tarpaulin load detection device, and the load value of the tarpaulin device is positively correlated with the resistance value encountered by the tarpaulin device when opening and closing.

[0017] In some embodiments, the detection device further includes a turning angle detection device electrically connected to the controller, the turning angle detection device is suitable for detecting the turning angle of the vehicle, and the vehicle driving information at least includes the turning angle of the vehicle.

[0018] In some embodiments, the tarpaulin device control system also includes a first transmission assembly and a second transmission assembly, the first transmission assembly is connected between the drive device and the tarpaulin device; the second transmission assembly is connected between the drive device and the tarpaulin device, and the second transmission assembly and the first transmission assembly are arranged on opposite sides of the tarpaulin device; according to the vehicle driving information detected by the detection device, the resistance value encountered by the tarpaulin device when opening and closing is obtained, including: according to the turning angle of the vehicle detected by the turning angle detection device, the resistance value encountered by the first transmission assembly and the second transmission assembly when opening and closing is obtained.

[0019] In some embodiments, one of the first transmission assembly and the second transmission assembly is an inner transmission assembly when turning, and the other is an outer transmission assembly; the turning angle of the vehicle is positively correlated with the resistance value of the inner transmission assembly, and the turning angle of the vehicle is negatively correlated with the resistance value of the outer transmission assembly.

[0020] In some embodiments, the driving device includes a hydraulic cylinder, which is in transmission connection with the first transmission assembly and the second transmission assembly; the tarpaulin device control system also includes a pressure sensor, which is electrically connected to the controller and is suitable for detecting the pressure value in the hydraulic cylinder; the driving information includes at least the pressure value in the hydraulic cylinder; the driving force provided by the driving device is determined according to the resistance value encountered when the tarpaulin device is opened and closed, including: determining the required pressure value in the hydraulic cylinder according to the resistance value encountered when the tarpaulin device is opened and closed, and the resistance value encountered when the tarpaulin device is opened and closed is positively correlated with the required pressure value in the hydraulic cylinder.

[0021] In some embodiments, the hydraulic cylinder includes a cylinder body, a piston rod assembly, an oil storage device, an oil pump and a control valve. A hydraulic chamber is provided in the cylinder body, and an oil inlet and an oil return port connected to the hydraulic chamber are provided on the cylinder body; at least a portion of the piston rod assembly is slidably disposed in the hydraulic chamber, and the piston rod assembly is transmission-connected to the first transmission assembly and the second transmission assembly; the oil storage device is respectively connected to the oil inlet and the oil return port; the oil pump is connected between the oil inlet and the oil storage device, and is suitable for transporting the oil in the oil storage device to the hydraulic chamber; the control valve is electrically connected to the controller, and is connected between the oil pump and the hydraulic cylinder, and the control valve can be set to open and close.

[0022] In some embodiments, after determining the required pressure value in the hydraulic cylinder based on the resistance value encountered when the tarpaulin device is opened and closed, the controller is further configured to: control the opening and closing state of the control valve based on the required pressure value in the hydraulic cylinder so that the pressure value in the hydraulic cylinder reaches the required pressure value.

[0023] In some embodiments, the detection device further includes an oil temperature detection device, which is suitable for detecting the temperature value of the oil in the hydraulic cylinder.

[0024] In some embodiments, determining the magnitude of the driving force provided by the driving device based on the resistance value encountered when the tarpaulin device is opened and closed and the actual opening and closing speed of the tarpaulin device includes: determining the required pressure value in the hydraulic cylinder based on the resistance value encountered when the tarpaulin device is opened and closed, the actual opening and closing speed of the tarpaulin device, and the temperature value of the oil in the hydraulic cylinder.

[0025] In some embodiments, the tarpaulin device control system further includes a fault diagnosis module electrically connected to the pressure sensor and the controller, and the fault diagnosis module is adapted to determine the fault mode based on the pressure value in the hydraulic cylinder detected by the pressure sensor and the opening and closing state of the control valve.

[0026] In some embodiments, the failure mode includes at least a potential failure mode and a complete failure mode; the controller is further configured to: when detecting that the fault diagnosis module determines it to be a potential failure mode, the controller issues an alarm; when detecting that the fault diagnosis module determines it to be a complete failure mode, the controller controls the control valve to close.

[0027] In some embodiments, the fault mode is determined based on the pressure value in the hydraulic cylinder detected by the pressure sensor and the opening and closing state of the control valve, including: determining the pressure threshold in the hydraulic cylinder based on the opening and closing state of the control valve; the opening size of the control valve corresponds one-to-one to the pressure threshold in the hydraulic cylinder; and determining the fault mode based on the pressure value and pressure threshold in the hydraulic cylinder.

[0028] In some embodiments, the fault mode is determined based on the pressure value and the pressure threshold in the hydraulic cylinder, including: if the difference between the pressure threshold and the pressure value in the hydraulic cylinder is greater than or equal to a first threshold, determining that the fault mode is a complete failure mode; if the difference between the pressure threshold and the pressure value in the hydraulic cylinder is less than the first threshold, determining that the fault mode is a potential failure mode.

[0029] In some embodiments, the complete failure mode includes a pressure overload complete failure mode and a low pressure complete failure mode; if the difference between the pressure threshold and the pressure value in the hydraulic cylinder is greater than or equal to a first threshold, the failure mode is determined to be a complete failure mode, including: if the difference between the pressure threshold and the pressure value in the hydraulic cylinder is greater than or equal to the first threshold, and the pressure threshold is greater than or equal to the pressure value in the hydraulic cylinder, the failure mode is determined to be a low pressure complete failure mode; if the difference between the pressure threshold and the pressure value in the hydraulic cylinder is greater than or equal to the first threshold, and the pressure threshold is less than the pressure value in the hydraulic cylinder, the failure mode is determined to be a pressure overload complete failure mode.

[0030] In some embodiments, the potential failure mode includes a pressure overload potential failure mode and a pressure too low potential failure mode; if the difference between the pressure threshold and the pressure value in the hydraulic cylinder is less than a first threshold, determining the failure mode as a potential failure mode includes: if the difference between the pressure threshold and the pressure value in the hydraulic cylinder is less than the first threshold, and the pressure threshold is greater than or equal to the pressure value in the hydraulic cylinder, determining the failure mode as a pressure too low potential failure mode;

[0031] If the difference between the pressure threshold and the pressure value in the hydraulic cylinder is smaller than the first threshold, and the pressure threshold is smaller than the pressure value in the hydraulic cylinder, the fault mode is determined to be a pressure overload potential fault mode.

[0032] In some embodiments, the tarpaulin device control system also includes a memory electrically connected to the controller; after determining the fault mode based on the pressure value and pressure threshold in the hydraulic cylinder, the controller is further configured to: receive fault mode information sent by the fault diagnosis module; and store the fault information in the memory.

[0033] In a second aspect, a vehicle is also provided, including a tarpaulin device control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0035] Figure 1 A schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0036] Figure 2 A schematic structural diagram of a tarpaulin device control system provided in some embodiments of the present application;

[0037] Figure 3 This is one of the flow charts of a method for controlling the opening and closing of a tarpaulin device provided in some embodiments of the present application;

[0038] Figure 4 This is a second flow chart of a method for controlling the opening and closing of a tarpaulin device provided in some embodiments of the present application.

[0039] Reference numerals:

[0040] 1000, vehicle; 100, vehicle body; 200, tarpaulin device control system;

[0041] 1. Tarpaulin device;

[0042] 2. Driving device; 21. Hydraulic cylinder;

[0043] 3. Detection device;

[0044] 4. Controller;

[0045] 5. Speed detection device;

[0046] 6. First transmission assembly;

[0047] 7. Second transmission assembly;

[0048] 8. Pressure sensor;

[0049] 9. Oil temperature detection device;

[0050] 10. Fault diagnosis module. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0052] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0053] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0054] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may be directly connected, indirectly connected through an intermediary, or internally connected between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0055] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, article, or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, article, or device comprising the element.

[0056] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0057] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0058] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of the present application. This application provides a vehicle 1000, which can be a pure gasoline vehicle, a pure electric vehicle, a hybrid vehicle, etc. The vehicle 1000 can also be a sedan, a bus, a truck, etc.

[0059] Please continue reading Figure 1Vehicle 1000 may include a vehicle body 100 and a tarpaulin device control system 200 mounted on the vehicle body 100. The tarpaulin device control system 200 is used to control the opening and closing of the tarpaulin device 1. Conventional tarpaulin device control systems 200 may only offer a few fixed opening and closing modes and are unable to dynamically adjust hydraulic oil pressure based on driver needs or external conditions. This can easily lead to uneven opening and closing of the tarpaulin device 1, resulting in a poor user experience. The limitations of the tarpaulin device control system 200 may be particularly apparent in scenarios where personalized comfort or perfect integration with the dynamics of the vehicle 1000 is sought.

[0060] Based on this, in some embodiments, see Figure 2 , Figure 2 Schematic diagram of a tarpaulin device control system 200 provided in some embodiments of the present application. The tarpaulin device control system 200 may include a tarpaulin device 1, a driving device 2, a detection device 3, and a controller 4.

[0061] The tarpaulin device 1 is slidably mounted on the vehicle body 100. That is, the tarpaulin device 1 is slidably connected to the vehicle body 100, allowing it to be closed and opened. When the tarpaulin device 1 is closed, the open roof of the vehicle 1000 is covered by the tarpaulin device 1, isolating the interior passenger space from the outside environment, creating a relatively independent space within the vehicle and enhancing the privacy of the passengers. When the tarpaulin device 1 is opened, the roof is open, and the passengers' field of vision is no longer restricted by the tarpaulin device 1. They can directly see the sky and the surrounding environment, enhancing their sense of space.

[0062] In addition, the driving device 2 is adapted to provide driving force for the tarpaulin device 1, that is, the driving device 2 provides power for the sliding of the tarpaulin device 1, thereby driving the tarpaulin device 1 to open or close. For example, the driving device 2 may be a hydraulic cylinder 21, or a motor, etc., which is not limited in this application.

[0063] In addition, the detection device 3 can be directly installed on the vehicle body 100, or on the tarpaulin device 1, which is not limited in this application. The detection device 3 is suitable for detecting driving information of the vehicle 1000, and the driving information may include: the driving speed value of the vehicle 1000, the acceleration value of the vehicle 1000, etc. For ease of understanding, this application will not describe it here, and please refer to the following description.

[0064] In addition, the controller 4 is electrically connected to the tarpaulin device 1, the drive device 2, and the detection device 3. In some embodiments, the controller 4 may be a microcontroller unit (MCU). An MCU, also known as a single-chip microcomputer or single-chip microcomputer, is a central processing unit (CPU) with appropriately reduced frequency and specifications. It integrates memory, timers, USB, A / D converters, UARTs, PLCs, DMA, and other peripheral interfaces, as well as LCD driver circuits, onto a single chip, forming a chip-level computer capable of providing different control combinations for different applications.

[0065] In other embodiments, the controller 4 may also be a central processing unit (CPU), a general-purpose processor, a network processor (NP), a digital signal processor (DSP), a programmable logic device (PLD), a microprocessor, a microcontroller 4, or any combination thereof. The controller 4 may also be other devices with processing functions, such as circuits, devices, or software modules, and the embodiments of the present application do not impose any restrictions on this.

[0066] The controller 4 can be used to control the operation of each component in the tarpaulin device control system 200, so that each component in the tarpaulin device control system 200 can be operated to realize the opening and closing control of the tarpaulin device 1.

[0067] Exemplarily, the controller 4 can execute the following control instructions: according to the driving information of the vehicle 1000 detected by the detection device 3, obtain the resistance value encountered by the tarpaulin device 1 when opening and closing; according to the resistance value encountered by the tarpaulin device 1 when opening and closing, determine the magnitude of the driving force provided by the driving device 2.

[0068] By electrically connecting the controller 4 to the tarpaulin device 1, the drive device 2, and the detection device 3, the controller 4 can calculate the resistance encountered by the tarpaulin device 1 during opening and closing based on the driving information of the vehicle 1000 acquired by the detection device 3, and accordingly determine the driving force to be provided by the drive device 2. This ensures that the tarpaulin device 1 can be opened and closed smoothly under the appropriate driving force, regardless of the driving state of the vehicle 1000. This prevents the tarpaulin device 1 from opening and closing slowly or becoming stuck due to insufficient driving force, or from damaging the tarpaulin device 1 or related components due to excessive driving force.

[0069] For example, when vehicle 1000 is traveling at a moderate speed (e.g., greater than 30 km / h and less than 50 km / h), wind resistance can exert a significant force on tarpaulin device 1. Detection device 3 can transmit vehicle speed information to controller 4, allowing controller 4 to determine the resistance encountered by tarpaulin device 1 during opening and closing. Based on this information, controller 4 increases the driving force of drive device 2 to maintain a taut state and prevent fluttering or deformation caused by wind resistance. Because the driving force is adjusted in real time based on actual driving speed and potential wind resistance, the tarpaulin device 1 can open and close smoothly even at high speeds, without violent shaking or wind pulling.

[0070] For example, if the detection device 3 detects a low vehicle speed (e.g., vehicle 1000 is traveling at less than or equal to 30 km / h) or that the vehicle 1000 is stationary, the controller 4 can reduce the driving force of the driving device 2, causing the tarpaulin to open and close more slowly and with moderate force. This facilitates passenger entry and exit from the vehicle 1000 while preventing the tarpaulin device 1 from moving rapidly due to excessive driving force, potentially colliding with the vehicle body 100 or surrounding objects. This ensures that the tarpaulin opens and closes smoothly and gently under these operating conditions.

[0071] In addition, the controller 4 can accurately provide driving force according to the actual resistance, avoiding unnecessary energy consumption. Compared with the traditional fixed driving force system, it can effectively reduce the energy consumption of the driving device 2 while ensuring the normal operation of the tarpaulin device 1, thereby achieving energy saving.

[0072] In some embodiments, the tarpaulin device control system 200 further includes a speed detection device 5, wherein the speed detection device 5 is electrically connected to the controller 4. The speed detection device 5 is adapted to detect the actual opening and closing speed of the tarpaulin device 1.

[0073] In one possible structural design, the speed detection device 5 may be a laser velocimeter. This laser velocimeter emits a laser beam, illuminates the surface of the tarpaulin device 1, and then measures the Doppler frequency shift of the reflected laser beam to calculate the speed of the tarpaulin device 1. The laser velocimeter utilizes the Doppler effect of light, which states that when there is relative motion between the light source and the observer, the frequency of the light received by the observer changes.

[0074] In another possible structural design, the speed detection device 5 can also be a rotary encoder. A rotary encoder is a rotary sensor that converts rotational displacement into a series of digital pulse signals. These pulses can be used to control angular displacement. A rotary encoder can be mounted on the drive shaft or a related rotating component of the tarpaulin device 1. When the tarpaulin device 1 is opened or closed, the rotation of the drive shaft drives the encoder to generate pulse signals. By measuring the number of pulses per unit time, the rotational speed of the drive shaft can be calculated, and thus the opening and closing speed of the tarpaulin device 1 can be determined.

[0075] In this way, the speed detection device 5 monitors the actual opening and closing speed of the tarpaulin device 1 in real time and feeds this actual opening and closing speed information back to the controller 4. The controller 4 can compare the actual opening and closing speed with the preset speed. When the actual opening and closing speed deviates from the preset value, the controller 4 can promptly adjust the driving force of the driving device 2 to ensure that the tarpaulin device 1 opens or closes smoothly at the preset speed, ensuring smooth opening and closing of the tarpaulin device 1.

[0076] For example, when vehicle 1000 is traveling at a moderate speed (e.g., greater than 30 km / h and less than 50 km / h), wind resistance exerts a significant force on tarpaulin device 1, causing the actual opening and closing speed of tarpaulin device 1 to fall below the preset opening and closing speed. Based on the resistance encountered by tarpaulin device 1 during opening and closing and the actual opening and closing speed, controller 4 increases the driving force of driving device 2, bringing the actual opening and closing speed of tarpaulin device 1 to the preset opening and closing speed. This further maintains the tarpaulin in a taut state and prevents fluttering or deformation caused by wind resistance. Because the driving force is adjusted in real time based on the resistance encountered by tarpaulin device 1 during opening and closing and the actual opening and closing speed, the tarpaulin device 1 can open and close smoothly even at high speeds, without violent shaking or wind pulling.

[0077] In some embodiments of the present application, the detection device 3 further includes a speed sensor, which is electrically connected to the controller 4 and is suitable for detecting the driving speed of the vehicle 1000. The driving information of the vehicle 1000 at least includes the driving speed value of the vehicle 1000.

[0078] In one possible structural design, the speed sensor can be a wheel speed sensor, which can be an electromagnetic induction or Hall-effect sensor. An electromagnetic induction wheel speed sensor consists of a permanent magnet, an induction coil, and a ring gear mounted on the wheel hub. As the wheel rotates, the tops and valleys of the ring gear alternately pass through the induction coil, causing the magnetic flux in the coil to change, generating an induced electromotive force (EMF) with a frequency proportional to the wheel speed. A Hall-effect wheel speed sensor utilizes the Hall effect. When the ring gear rotates, the magnetic field changes, causing the Hall element to generate a periodic Hall voltage, which is then used to detect wheel speed.

[0079] In one possible structural design, the speed sensor can also be a radar speed measuring device, which can include Doppler radar and lidar. Doppler radar uses the Doppler effect of microwaves to transmit microwave signals toward vehicle 1000. As vehicle 1000 moves, the frequency of the reflected wave changes, and the speed of vehicle 1000 is calculated by measuring the frequency difference. Lidar, on the other hand, emits laser pulses and measures the time it takes for the laser to reflect back to calculate the change in distance between vehicle 1000 and the radar, thereby determining the speed of vehicle 1000.

[0080] It is understood that the wind resistance and other resistance encountered by the tarpaulin device 1 during opening and closing will vary depending on the speed of the vehicle 1000. Because the speed sensor can detect the vehicle's 1000 speed in real time and provide feedback to the controller 4, the controller 4 can use this information to more accurately calculate the resistance encountered during opening and closing of the tarpaulin device 1 and adjust the driving force provided by the drive device 2 accordingly. For example, if the wind resistance is high when the vehicle 1000 is traveling at high speed, the controller 4 will increase the driving force to ensure smooth opening and closing of the tarpaulin device 1. At lower speeds, the driving force will be appropriately reduced to prevent damage to the tarpaulin device 1 and related components caused by excessive driving force.

[0081] In some embodiments of the present application, the detection device 3 further includes an acceleration sensor, which is electrically connected to the controller 4 and is suitable for detecting the acceleration value of the vehicle 1000 ; the driving information of the vehicle 1000 includes at least the acceleration value of the vehicle 1000 .

[0082] For example, the accelerometer can be a piezoelectric accelerometer. Piezoelectric accelerometers are based on the piezoelectric effect. When certain crystalline materials (such as quartz and piezoelectric ceramics) deform under external force, they generate an electric charge on their surface. The magnitude of the charge is proportional to the applied force. When the sensor senses acceleration, the mass exerts a force on the piezoelectric material, generating a charge signal proportional to the acceleration. The magnitude of the acceleration is determined by measuring this charge signal.

[0083] For example, the acceleration sensor can be a piezoresistive accelerometer. This piezoresistive accelerometer utilizes the piezoresistive effect, whereby the resistance of a semiconductor material (such as silicon) changes when subjected to stress. Acceleration generates a force on the mass block in the sensor, which stresses the piezoresistive element, causing a change in resistance. Acceleration is detected by measuring this change in resistance.

[0084] It is understood that changes in the acceleration of vehicle 1000 will cause changes in the inertial force and air resistance experienced by tarpaulin apparatus 1. Because the acceleration sensor detects the acceleration of vehicle 1000 in real time and feeds it back to controller 4, controller 4 can use this acceleration information to more accurately predict the dynamic changes in the resistance experienced by tarpaulin apparatus 1 during the opening and closing process. For example, when vehicle 1000 accelerates, the tarpaulin apparatus 1 generates a greater backward pull due to inertia. Controller 4 can promptly increase the driving force of drive device 2 based on the magnitude of the acceleration to ensure smooth opening and closing of tarpaulin apparatus 1. Conversely, when vehicle 1000 decelerates, the driving force is reduced accordingly to avoid unnecessary impact on tarpaulin apparatus 1.

[0085] In some embodiments of the present application, the detection device 3 also includes a wind speed detection device, wherein the wind speed detection device is electrically connected to the controller 4, and the wind speed detection device is suitable for detecting the wind speed of the vehicle 1000 when it is stationary; the driving information of the vehicle 1000 at least includes the wind speed value of the vehicle 1000 when it is stationary.

[0086] Exemplarily, the wind speed detection device may be a propeller anemometer or an ultrasonic anemometer or other detection device, which is not limited in this application.

[0087] It should be noted that the wind speed of the stationary vehicle 1000 affects the wind force experienced by the tarpaulin device 1 during opening or closing. The greater the wind speed, the greater the resistance experienced by the tarpaulin device 1. The wind speed detection device transmits the wind speed value to the controller 4, which then accurately calculates the driving force required to open and close the tarpaulin device 1. For example, in strong winds, the controller 4 will increase the driving force of the driving device 2 accordingly to ensure smooth opening and closing of the tarpaulin device 1 and avoid malfunction or damage to the tarpaulin device 1 due to insufficient driving force.

[0088] In some embodiments of the present application, the detection device 3 may further include: a tarpaulin load detection device, which is electrically connected to the controller 4 and is suitable for detecting the load value of the tarpaulin device 1, and the driving information of the vehicle 1000 includes at least the load value of the tarpaulin device 1.

[0089] In a possible structural design, the tarpaulin load detection device can be a pressure sensor, which can be installed on the supporting structure or fixed point of the tarpaulin. When the tarpaulin is under load, it will generate pressure on the supporting structure. The pressure sensor 8 converts the pressure signal into an electrical signal, and determines the load value of the tarpaulin by measuring the size of the electrical signal.

[0090] In another possible structural design, the tarpaulin load detection device can be a strain gauge sensor. Specifically, a strain gauge is attached to the load-bearing component of the tarpaulin. When the tarpaulin is subjected to a load, the load-bearing component deforms, and the resistance of the strain gauge changes accordingly. By measuring this change in the strain gauge resistance, the stress on the load-bearing component can be calculated, and the tarpaulin load value can be obtained.

[0091] It should be noted that when the vehicle 1000 is traveling in inclement weather such as rain or snow, rain, snow, or other objects may act on the tarpaulin device 1, causing the tarpaulin to bear a certain load, thereby preventing the tarpaulin device 1 from opening and closing smoothly. In the embodiment of the present application, a tarpaulin load detection device is provided, and the tarpaulin load detection device monitors the load value of the tarpaulin device 1 in real time. Then, based on the detected load value, the controller 4 can optimize the driving force required to open and close the tarpaulin, ensuring that the tarpaulin device 1 can open and close smoothly. For example, when the load is heavy, the driving force is increased to ensure smooth operation and reduce damage to the tarpaulin and the device.

[0092] In some embodiments of the present application, the detection device 3 may also include: a turning angle detection device, which is electrically connected to the controller 4 and is suitable for detecting the turning angle of the vehicle 1000, and the driving information of the vehicle 1000 includes at least the turning angle of the vehicle 1000.

[0093] In one possible structural design, the turning angle detection device can be a steering wheel angle sensor, and the steering wheel steering angle sensor can be a photoelectric steering wheel steering angle sensor. The photoelectric steering wheel steering angle sensor consists of a light-emitting element, a grating code disk, a photoelectric receiver, and a signal processing circuit. The grating code disk is mounted on the steering column of the steering wheel. The disk surface of the grating code disk is engraved with a special pattern of light-transmitting grooves or reflective stripes. When the steering wheel is turned, the light-transmitting grooves or reflective stripes cause the light emitted by the light-emitting component to be periodically blocked or transmitted, forming alternating light and dark light pulses. The photoelectric receiver converts the light pulses into electrical signals, and the signal processor converts the electrical signals into digital signals, thereby detecting the turning angle of the vehicle 1000.

[0094] In another possible structural design, the turning angle detection device can also be a wheel steering angle sensor, and the wheel steering angle sensor can be a potentiometer wheel steering angle sensor. The potentiometer wheel steering angle sensor includes a resistor element, a sliding contact, a shell and a mechanical interface and a signal output circuit. The shell and the mechanical interface are connected to the wheel. When the wheel rotates, the sliding contact slides on the resistor element, and the output end voltage changes with the resistance ratio. The signal output circuit outputs an electrical signal proportional to the steering angle, so as to detect the turning angle of the vehicle 1000.

[0095] It is understood that turning the vehicle body 1000 changes the centripetal acceleration applied to the tarpaulin device 1 during opening and closing. When the vehicle 1000 is turning, the centripetal acceleration of the tarpaulin changes, thereby altering the resistance experienced during the opening and closing process. Because the turning angle detection device can provide real-time feedback to the controller 4 regarding the vehicle 1000's turning angle, the controller 4 can accurately calculate the resistance applied to the tarpaulin device 1 during opening and closing based on this information, thereby adjusting the driving force provided by the drive device 2.

[0096] In some embodiments of the present application, the detection device 3 may further include: an inclination angle detection device, which is electrically connected to the controller 4 and is suitable for detecting the inclination angle of the vehicle body 100 .

[0097] In one possible structural design, the tilt angle detection device can be a tilt sensor that measures the angle by measuring the change in the component of gravitational acceleration at different tilt angles. The tilt sensor, based on microelectromechanical systems (MEMS) technology, contains a sensitive element. When the vehicle body 100 tilts, the sensitive element senses the change in gravitational acceleration and converts it into an electrical signal. The signal processing circuit then calculates the tilt angle of the vehicle body 100.

[0098] In another possible structural design, the tilt angle detection device may also be a gyroscope sensor. Based on the principle of conservation of angular momentum, the gyroscope sensor determines the rotation angle of the vehicle body 100 by measuring the precession angular velocity of the gyroscope rotor, thereby inferring the tilt angle of the vehicle body 100. When the vehicle body 100 tilts, the gyroscope will produce corresponding precession, and its precession angular velocity is proportional to the tilt angular velocity of the vehicle body 100.

[0099] It is understandable that the tilt of the vehicle body 100 will change the force applied to the tarpaulin device 1 during opening and closing. When the vehicle 1000 is in a tilted state, the gravity distribution of the tarpaulin will change, thereby changing the resistance encountered during the opening and closing process. Since the tilt angle detection device can feed back the tilt angle information of the vehicle body 100 to the controller 4 in real time, the controller 4 can accurately calculate the resistance value of the tarpaulin device 1 during opening and closing based on the tilt angle information of the vehicle body 100, and then adjust the driving force provided by the driving device 2. For example, when the vehicle 1000 is going uphill, the vehicle body 100 tilts forward, and the tarpaulin may be subject to greater gravity resistance during the opening process. The controller 4 can increase the driving force to ensure that the tarpaulin opens smoothly; when going downhill, the driving force is reduced accordingly.

[0100] In some embodiments, the tarpaulin device control system 200 also includes a first transmission component 6 and a second transmission component 7, the first transmission component 6 is connected between the driving device 2 and the tarpaulin device 1, the second transmission component 7 is connected between the driving device 2 and the tarpaulin device 1, and the second transmission component 7 and the first transmission component 6 are arranged on opposite sides of the tarpaulin device 1.

[0101] Optionally, the structures of the first transmission assembly 6 and the second transmission assembly 7 may be the same, or the structures of the first transmission assembly 6 and the second transmission assembly 7 may be different, which is not limited in this application.

[0102] In a possible structural design, the first transmission assembly 6 and the second transmission assembly 7 can be a connecting rod mechanism, which includes a power source, a main connecting rod, a support rod, and a hinge node. The support rod is connected to the tarpaulin device 1, and the rotational / linear motion of the power source is converted into the movement of the support rod of the tarpaulin device 1 through the main connecting rod. The hinge node adapts to the movement of the support rod of the tarpaulin device 1 to realize the opening or closing of the tarpaulin device 1.

[0103] In another possible structural design, the first transmission assembly 6 and the second transmission assembly 7 can also be a gear mechanism, which includes a driving gear, a driven gear and a rack. The rack is connected to the tarpaulin device 1, and the driven gear is driven by the main gear to move on the rack to realize the opening or closing of the tarpaulin device 1.

[0104] The first and second transmission assemblies 6 and 7 can be arranged on opposite sides of the tarpaulin device 1 along the width of the vehicle 1000 (i.e., the direction of the driver's seat and the passenger seat). Therefore, when the vehicle 1000 turns, one of the first and second transmission assemblies 6 and 7 serves as the inner transmission assembly, while the other serves as the outer transmission assembly. For example, the first transmission assembly 6 is connected to the left side of the tarpaulin device 1, and the second transmission assembly 7 is connected to the right side of the tarpaulin device 1. Therefore, when the vehicle 1000 turns left, the first transmission assembly 6 serves as the inner transmission assembly, while the second transmission assembly 7 serves as the outer transmission assembly. When the vehicle 1000 turns right, the first transmission assembly 6 serves as the outer transmission assembly, while the second transmission assembly 7 serves as the inner transmission assembly.

[0105] In the embodiment of the present application, the first transmission assembly 6 and the second transmission assembly 7 are both arranged between the driving device 2 and the tarpaulin device 1. The controller 4 obtains the resistance value encountered by the tarpaulin device 1 when opening and closing based on the driving information of the vehicle 1000 detected by the detection device 3, and then determines the size of the driving force provided by the driving device 2 based on the resistance value encountered by the tarpaulin device 1 when opening and closing. The force transmitted by the first transmission assembly 6 and the second transmission assembly 7 is obtained accordingly, so that the force transmitted by the first transmission assembly 6 and the second transmission assembly 7 can be applied to the tarpaulin device 1 to realize the opening or closing of the tarpaulin device 1.

[0106] In some embodiments, the driving device 2 may include a hydraulic cylinder 21, which is transmission-connected to the first transmission assembly 6 and the second transmission assembly 7; the tarpaulin device control system 200 also includes a pressure sensor 8, which is electrically connected to the controller 4 and is suitable for detecting the pressure value in the hydraulic cylinder 21; the driving information of the vehicle 1000 includes at least the pressure value in the hydraulic cylinder 21.

[0107] The hydraulic cylinder 21 is connected to the first transmission assembly 6 and the second transmission assembly 7 through transmission. The pressure in the hydraulic cylinder 21 drives the first transmission assembly 6 and the second transmission assembly 7 to move, thereby realizing the opening or closing of the tarpaulin device 1.

[0108] In one possible structural design, the hydraulic cylinder 21 may include: a cylinder body, a piston rod assembly, an oil storage device, an oil pump, and a control valve. The cylinder body is provided with a hydraulic chamber, and the cylinder body is provided with an oil inlet and an oil return port connected to the hydraulic chamber. At least a portion of the piston rod assembly is slidably disposed within the hydraulic chamber, and the piston rod assembly is transmission-connected to the first transmission assembly 6 and the second transmission assembly 7. That is, one end of the piston rod assembly is slidably disposed within the hydraulic chamber, and the other end of the piston rod assembly can extend out of the hydraulic chamber and be connected to the first transmission assembly 6 and the second transmission assembly 7, respectively. Then, when oil enters the hydraulic cylinder 21, the pressure within the hydraulic cylinder 21 increases, thereby pushing the piston rod to slide, and in turn driving the first transmission assembly 6 and the second transmission assembly 7 to move, thereby causing the tarpaulin device 1 to slide.

[0109] In addition, an oil storage device is connected to the oil inlet and the oil return port, respectively. The oil storage device can be an oil tank or an oil reservoir, which is not limited in this application. An oil pump is connected between the oil inlet and the oil storage device and is suitable for transferring oil in the oil storage device to the hydraulic chamber. Optionally, the oil pump can be a gear pump, a vane pump, a plunger pump, or a screw pump, which is not limited in this application.

[0110] Furthermore, a control valve is electrically connected to the controller 4 and is connected between the oil pump and the hydraulic cylinder 21. The control valve can be opened and closed. The control valve can be a proportional valve or a servo valve, etc., which is not limited in this application. It is understood that the control valve needs to have an adjustable opening. For example, the opening of the valve body can be fully open, fully closed, half open, half closed, etc.

[0111] It should be noted that the diameter of the oil return port is fixed, so the flow rate of the oil in the hydraulic cylinder 21 is fixed when it returns. In this way, by adjusting the opening of the control valve, the flow rate of the oil into the hydraulic chamber can be controlled, and then the pressure value in the hydraulic chamber can be controlled.

[0112] In the embodiment of the present application, at least a portion of the piston rod assembly in the hydraulic cylinder 21 is slidably arranged in the hydraulic cavity, the control valve is electrically connected to the controller 4, and is connected between the oil pump and the hydraulic cylinder 21, the pressure sensor 8 is suitable for detecting the pressure value in the hydraulic cylinder 21, and the control valve can control the movement of the piston rod assembly in the hydraulic cavity, thereby changing the pressure value of the oil in the hydraulic cylinder 21, driving the first transmission assembly 6 and the second transmission assembly 7 to move, so as to control the opening and closing of the tarpaulin device 1.

[0113] In some embodiments, the tarpaulin device control system 200 further includes an oil temperature detection device 9 , which is suitable for detecting the temperature of the oil in the hydraulic cylinder 21 .

[0114] In one possible structural design, the oil temperature detection device 9 may be an oil temperature sensor, which may be installed within the hydraulic cylinder 21 or on the outlet pipe of the hydraulic cylinder 21. The oil temperature sensor utilizes a negative temperature coefficient (NTC) thermistor, causing the resistance in the circuit to change with temperature. The temperature of the oil in the hydraulic cylinder 21 is determined by the change in resistance. Specifically, as the temperature of the oil in the hydraulic cylinder 21 increases, the resistance decreases; and as the temperature of the oil in the hydraulic cylinder 21 decreases, the resistance increases.

[0115] In a possible structural design, the oil temperature detection device 9 can also be an oil temperature gauge, which is directly connected to the pipeline of the hydraulic cylinder 21 and displays the temperature value of the oil in the hydraulic cylinder 21 through a pointer.

[0116] It is understood that an increase in the oil temperature within the hydraulic chamber causes the oil to expand in volume. Within a closed hydraulic chamber, this expansion leads to an increase in pressure. Conversely, a decrease in the oil temperature causes a decrease in pressure. Consequently, the oil temperature within the hydraulic chamber affects the oil pressure within the hydraulic cylinder 21, and thus, the oil temperature within the hydraulic chamber affects the driving force of the drive device 2.

[0117] Since the oil temperature detection device 9 can detect the temperature value of the oil in the hydraulic cylinder 21 in real time and feed it back to the controller 4, when the controller 4 calculates the required pressure value in the hydraulic cylinder 21, it can more accurately control the pressure value in the hydraulic cavity according to the temperature of the oil, thereby avoiding deviations in the pressure value in the hydraulic cavity due to different oil temperatures, and further improving the accuracy of the tarpaulin device control system 200.

[0118] In some embodiments, the tarpaulin device control system 200 also includes a fault diagnosis module 10, which is electrically connected to the pressure sensor 8 and the controller 4. The fault diagnosis module 10 is suitable for determining the fault mode based on the pressure value in the hydraulic cylinder 21 detected by the pressure sensor 8 and the opening and closing state of the control valve.

[0119] The fault diagnosis module 10 is electrically connected to the pressure sensor 8 and the controller 4. The fault diagnosis module 10 can quickly determine the fault mode based on the pressure value in the hydraulic cylinder 21 detected by the pressure sensor 8 and the opening and closing state of the control valve.

[0120] The embodiments provided in this application are described in detail below with reference to the accompanying drawings.

[0121] The embodiment of the present application provides a method for controlling the opening and closing of a tarpaulin device, which can be applied to the above-mentioned tarpaulin device control system. Figure 3 and Figure 4 As shown, the following steps may be included:

[0122] S101. A controller obtains a resistance value encountered by a tarpaulin device when opening or closing the tarpaulin device according to vehicle driving information detected by a detection device.

[0123] The vehicle driving information includes at least any combination of one or more of the vehicle's driving speed, vehicle acceleration, vehicle body tilt angle, vehicle stationary wind speed, tarpaulin device load value, and vehicle turning angle.

[0124] When the vehicle's driving information includes a vehicle speed, step S101 may include the following steps: the controller obtains a resistance value encountered by the tarpaulin device during opening and closing based on the vehicle's speed detected by the speed sensor. The vehicle's speed and the resistance value encountered by the tarpaulin device during opening and closing are positively correlated; that is, the greater the vehicle's speed, the greater the resistance value encountered by the tarpaulin device during opening and closing.

[0125] The wind resistance and other resistance encountered by the tarpaulin during opening and closing vary with vehicle speed. Because the controller can obtain real-time vehicle speed data from the speed sensor, it can use this information to more accurately calculate the resistance encountered during opening and closing of the tarpaulin and adjust the driving force provided by the drive mechanism accordingly. For example, if wind resistance is high at high speeds, the controller will increase the driving force to ensure smooth opening and closing of the tarpaulin. At lower speeds, the driving force will be appropriately reduced to prevent damage to the tarpaulin and related components.

[0126] When the vehicle's driving information includes the vehicle's acceleration value, step S101 may include the following steps: the controller obtains the resistance value encountered by the tarpaulin device during opening and closing based on the vehicle's acceleration value detected by the acceleration sensor. The vehicle's acceleration value and the resistance value encountered by the tarpaulin device during opening and closing are positively correlated; that is, the greater the vehicle's acceleration value, the greater the resistance value encountered by the tarpaulin device during opening and closing.

[0127] Changes in vehicle acceleration alter the inertial force and air resistance experienced by the tarpaulin. Because the controller can obtain real-time vehicle acceleration values from the accelerometer, it can combine this acceleration information to more accurately predict the dynamic changes in resistance experienced by the tarpaulin during its opening and closing process. For example, as the vehicle accelerates, the tarpaulin exerts a greater backward pull due to inertia. The controller can then increase the driving force of the drive mechanism based on the acceleration to ensure smooth opening and closing of the tarpaulin. Furthermore, as the vehicle decelerates, the driving force is reduced accordingly to avoid unnecessary impact on the tarpaulin.

[0128] When the vehicle's driving information includes a wind speed value when the vehicle is stationary, step S101 may include the following steps: the controller obtains a resistance value encountered by the tarpaulin device during opening and closing based on the wind speed value detected by the wind speed detection device when the vehicle is stationary. The wind speed value when the vehicle is stationary and the resistance value encountered by the tarpaulin device during opening and closing are positively correlated, i.e., the greater the wind speed value when the vehicle is stationary, the greater the resistance value encountered by the tarpaulin device during opening and closing.

[0129] The wind speed of a stationary vehicle affects the wind force experienced by the tarpaulin during opening and closing. The greater the wind speed, the greater the resistance to the tarpaulin. Because the controller can obtain real-time wind speed data when the vehicle is stationary, it can use this data to accurately calculate the driving force required to open and close the tarpaulin. For example, in strong winds, the controller will increase the driving force to ensure smooth opening and closing of the tarpaulin, preventing malfunction or damage due to insufficient driving force.

[0130] When the vehicle's driving information includes a load value of the tarpaulin device, step S101 may include the following steps: the controller obtains a resistance value encountered by the tarpaulin device during opening and closing based on the load value of the tarpaulin device detected by the tarpaulin load detection device. The load value of the tarpaulin device is directly proportional to the resistance value encountered by the tarpaulin device during opening and closing. That is, the greater the load value of the tarpaulin device, the greater the resistance value encountered by the tarpaulin device during opening and closing.

[0131] In inclement weather such as rain and snow, the tarpaulin assembly may be subjected to a certain load while the vehicle is in motion, which can prevent the tarpaulin assembly from opening and closing smoothly. In the embodiments of the present application, a tarpaulin load detection device is provided, allowing the controller to obtain the load value of the tarpaulin assembly in real time. Based on this detected load value, the controller can optimize the driving force required to open and close the tarpaulin assembly, ensuring smooth opening and closing of the tarpaulin assembly. For example, when the load is heavy, the driving force can be increased to ensure smooth operation and reduce damage to the tarpaulin assembly and the tarpaulin assembly.

[0132] When the vehicle's driving information includes a turning angle, step S101 may include the following steps: the controller obtains, based on the turning angle of the vehicle detected by the turning angle detection device, a resistance value experienced by the first transmission assembly and the second transmission assembly during opening and closing. The turning angle of the vehicle is positively correlated with the resistance value experienced by the inner transmission assembly, and negatively correlated with the resistance value experienced by the outer transmission assembly. That is, the greater the turning angle of the vehicle, the greater the resistance value experienced by the inner transmission assembly, and the smaller the resistance value experienced by the outer transmission assembly.

[0133] When a vehicle turns, the centripetal acceleration of the inner and outer drive assemblies changes, causing changes in the resistance experienced by the inner and outer drive assemblies, and further changing the resistance experienced by the tarpaulin during opening and closing. Because the controller can obtain the vehicle's turning angle in real time, it can accurately calculate the resistance experienced by the inner and outer drive assemblies based on this information, thereby reducing the resistance of the inner drive assembly and increasing the resistance of the outer drive assembly accordingly.

[0134] When the vehicle driving information includes the tilt angle of the vehicle body, step S101 may include the following steps: the controller obtains the resistance value encountered by the tarpaulin device when opening and closing according to the tilt angle of the vehicle body detected by the turning angle detection device.

[0135] When the vehicle body is on an inclined road, the gravity moment on the tarpaulin device will change, thereby changing the resistance value when the tarpaulin device is opened and closed. The main influencing factors include the pitch angle of the vehicle , roll angle , and the current opening of the tarpaulin device Based on the dynamic characteristics of the convertible link system, it can be obtained that the resistance value of the vehicle body's inclination angle on the opening and closing of the tarpaulin device is ,and . Among them, the inclination of the vehicle body will change the force applied to the tarpaulin device when it is opened and closed. When the vehicle is in a tilted state, the gravity distribution of the tarpaulin device will change, thereby changing the resistance encountered during the opening and closing process. Since the controller can obtain the inclination angle of the vehicle body in real time, the controller can accurately calculate the resistance value when the tarpaulin device is opened and closed based on the inclination angle information of the vehicle body, and then adjust the driving force provided by the drive device. For example, when the vehicle body leans forward when going uphill, the tarpaulin may be subject to greater gravity resistance during the opening process. The controller can increase the driving force to ensure that the tarpaulin opens smoothly; when going downhill, the driving force is reduced accordingly.

[0136] In one possible design, step S101 may include the following steps: the controller obtains a pressure value of the oil in the hydraulic cylinder based on the temperature value of the oil in the hydraulic cylinder detected by the oil temperature detection device. The temperature value of the oil in the hydraulic cylinder and the pressure value of the oil in the hydraulic cylinder are positively correlated, that is, the greater the temperature value of the oil in the hydraulic cylinder, the greater the pressure value of the oil in the hydraulic cylinder.

[0137] Among them, an increase in the temperature of the oil in the hydraulic chamber causes the oil volume to expand. In a closed hydraulic chamber, the expansion of the oil volume will cause the pressure to increase. Conversely, if the temperature of the oil in the hydraulic chamber decreases, the pressure in the hydraulic chamber will decrease. Therefore, the temperature of the oil in the hydraulic chamber will affect the pressure value of the oil in the hydraulic cylinder, that is, the temperature of the oil in the hydraulic chamber will affect the driving force of the drive device. Because the controller can obtain the temperature value of the oil in the hydraulic cylinder in real time, when calculating the required pressure value in the hydraulic cylinder, the controller can more accurately control the pressure value in the hydraulic chamber based on the oil temperature, avoiding deviations in the pressure value in the hydraulic chamber due to different oil temperatures, further improving the accuracy of the tarpaulin device control system.

[0138] S102: The controller determines the magnitude of the driving force provided by the driving device according to the resistance value encountered when the tarpaulin device is opened or closed.

[0139] In one possible design, step S102 may include the following steps: the controller determines the magnitude of the driving force provided by the driving device based on the resistance value encountered by the tarpaulin device when opening and closing and the actual opening and closing speed of the tarpaulin device, so as to make the actual opening and closing speed of the tarpaulin device reach a preset opening and closing speed.

[0140] For example, when the vehicle is traveling at 50 km / h, wind resistance exerts a significant force on the tarpaulin device, causing the actual opening and closing speed of the tarpaulin device to be less than the preset opening and closing speed. Because the controller can obtain the resistance value and the actual opening and closing speed of the tarpaulin device in real time, the controller increases the driving force of the driving device based on the resistance value and the actual opening and closing speed of the tarpaulin device, bringing the actual opening and closing speed of the tarpaulin device to the preset opening and closing speed. This further keeps the tarpaulin taut and prevents fluttering or deformation caused by wind resistance. Because the driving force is adjusted in real time based on the resistance value and the actual opening and closing speed of the tarpaulin device, the tarpaulin opens and closes smoothly even at high speeds, without violent shaking or being pulled by the wind.

[0141] In one possible design, step S102 may include the following steps: the controller determines the required pressure value in the hydraulic cylinder based on the resistance value encountered when the tarpaulin device is opened and closed, and the resistance value encountered when the tarpaulin device is opened and closed is positively correlated with the required pressure value in the hydraulic cylinder, that is, the greater the resistance value encountered when the tarpaulin device is opened and closed, the greater the required pressure value in the hydraulic cylinder.

[0142] At different vehicle speeds, the wind resistance and other resistance encountered by the tarpaulin during opening and closing will vary, and the required pressure in the hydraulic cylinder will also change. Because the controller can obtain real-time information about the resistance encountered during the tarpaulin's opening and closing, it can use this information to more accurately calculate the required pressure in the hydraulic cylinder and adjust the driving force provided by the drive mechanism accordingly. For example, at high speeds, wind resistance is greater, increasing the resistance encountered during opening and closing of the tarpaulin, and the required pressure in the hydraulic cylinder. The controller will then increase the driving force accordingly to ensure smooth opening and closing of the tarpaulin. At lower speeds, the driving force is appropriately reduced to prevent damage to the tarpaulin and related components caused by excessive force.

[0143] In one possible design, step S102 may include the following steps: the controller determines the required pressure value in the hydraulic cylinder based on the resistance value encountered when the tarpaulin device is opened and closed, the actual opening and closing speed of the tarpaulin device, and the temperature value of the oil in the hydraulic cylinder.

[0144] Based on the calibration of the tarpaulin device control system, the different resistance values of the tarpaulin device when opening and closing can be obtained. Required pressure value in the lower hydraulic cylinder The temperature of the oil in the hydraulic cylinder and the required pressure value in the hydraulic cylinder By modeling the dynamic system of the tarpaulin device control system, the actual opening and closing speed of the tarpaulin device can be obtained. The relationship between the vehicle's speed, acceleration, wind speed when the vehicle is stationary, load on the tarpaulin, turning angle of the vehicle, and tilt angle of the vehicle body and the resistance to the tarpaulin when opening and closing is established. Based on the above basic data, an algorithm is established to calculate the required pressure value in the hydraulic cylinder based on the actual opening and closing speed of the tarpaulin, the vehicle's speed, acceleration, wind speed when the vehicle is stationary, load on the tarpaulin, turning angle of the vehicle, tilt angle of the vehicle body, and other factors. , while introducing the temperature correction coefficient , and finally obtain the required pressure value in the hydraulic cylinder in real time, and .

[0145] In this way, when controlling the opening and closing of the tarpaulin device, the controller can comprehensively consider the resistance value encountered when the tarpaulin device is opened and closed, the actual opening and closing speed of the tarpaulin device, and the temperature value of the oil in the hydraulic cylinder to determine the required pressure value in the hydraulic cylinder.

[0146] S103: The controller controls the opening and closing state of the control valve according to the required pressure value in the hydraulic cylinder to ensure that the pressure value in the hydraulic cylinder reaches the required pressure value. The required pressure value in the hydraulic cylinder and the opening and closing state of the control valve are positively correlated, that is, the greater the required pressure value in the hydraulic cylinder, the greater the opening of the control valve.

[0147] For example, when a vehicle is traveling at a medium speed (for example, a vehicle speed greater than 30 km / h and less than 50 km / h), the wind resistance will exert a greater force on the tarpaulin device, causing the pressure value in the hydraulic cylinder to be less than the required pressure value in the hydraulic cylinder. Since the controller can obtain the required pressure value in the hydraulic cylinder in real time, the controller increases the opening of the control valve based on the required pressure value in the hydraulic cylinder to make the pressure value in the hydraulic cylinder reach the required pressure value, so that the opening and closing process of the tarpaulin at high speed can still remain smooth without violent shaking or being pulled by the wind.

[0148] S201: A fault diagnosis module determines a fault mode based on the pressure value within the hydraulic cylinder detected by the pressure sensor and the opening and closing state of the control valve. The fault mode may include a potential fault mode and a complete fault mode. Both potential fault modes and complete fault modes may include: excessive pressure, low pressure, pressure fluctuation, control valve failure, etc.

[0149] In this way, when controlling the opening and closing of the tarpaulin device, the fault diagnosis module determines the fault mode based on the pressure value in the hydraulic cylinder detected by the pressure sensor and the opening and closing state of the control valve.

[0150] In a possible design, step S201 may include the following steps: the fault diagnosis module determines the pressure threshold in the hydraulic cylinder according to the opening and closing state of the control valve; the opening size of the control valve corresponds to the pressure threshold in the hydraulic cylinder one by one.

[0151] For example, the pressure threshold when the control valve is fully open is the first pressure threshold, and the pressure threshold when the control valve is half open is the second pressure threshold, and the first pressure threshold is greater than the second pressure threshold. In this way, the fault diagnosis module can determine the pressure threshold in the hydraulic cylinder based on the opening and closing state of the control valve.

[0152] In a possible design, step S201 may include the following steps: determining a fault mode according to a pressure value and a pressure threshold in the hydraulic cylinder.

[0153] In one possible design, step S201 may include the following steps: if the difference between the pressure threshold and the pressure value in the hydraulic cylinder is greater than or equal to a first threshold, determining that the failure mode is a complete failure mode. The complete failure mode may be a damaged oil pump, a complete paralysis of the control system, or the like.

[0154] The complete failure mode includes a pressure overload complete failure mode and a low pressure complete failure mode. If the difference between the pressure threshold and the pressure value in the hydraulic cylinder is greater than or equal to a first threshold, and the pressure threshold is greater than or equal to the pressure value in the hydraulic cylinder, the failure mode is determined to be a low pressure complete failure mode. If the difference between the pressure threshold and the pressure value in the hydraulic cylinder is greater than or equal to a first threshold, and the pressure threshold is less than the pressure value in the hydraulic cylinder, the failure mode is determined to be a pressure overload complete failure mode.

[0155] Exemplarily, when the opening of the control valve is fully open, the pressure threshold when the control valve is fully open is the first pressure threshold. If the difference between the first pressure threshold and the pressure value in the hydraulic cylinder is greater than the first threshold, and the first pressure threshold is greater than the pressure value in the hydraulic cylinder, the fault diagnosis module determines that the fault mode is a complete fault mode of low pressure; if the difference between the first pressure threshold and the pressure value in the hydraulic cylinder is greater than the first threshold, and the first pressure threshold is less than the pressure value in the hydraulic cylinder, the fault diagnosis module determines that the fault mode is a complete fault mode of pressure overload.

[0156] Exemplarily, when the opening of the control valve is half-open, the pressure threshold of the control valve in the half-open state is the second pressure threshold. If the difference between the second pressure threshold and the pressure value in the hydraulic cylinder is greater than the first threshold, and the second pressure threshold is greater than the pressure value in the hydraulic cylinder, the fault diagnosis module determines that the fault mode is a complete failure mode of low pressure; if the difference between the second pressure threshold and the pressure value in the hydraulic cylinder is greater than the first threshold, and the second pressure threshold is less than the pressure value in the hydraulic cylinder, the fault diagnosis module determines that the fault mode is a complete failure mode of pressure overload.

[0157] In a possible design, step S201 may include the following steps: if the difference between the pressure threshold and the pressure value in the hydraulic cylinder is less than a first threshold, the fault diagnosis module determines that the fault mode is a potential fault mode. The potential fault mode may include pipeline damage, pipeline blockage, etc. Potential fault modes include pressure overload potential fault mode and too low pressure potential fault mode; if the difference between the pressure threshold and the pressure value in the hydraulic cylinder is less than the first threshold, and the pressure threshold is greater than or equal to the pressure value in the hydraulic cylinder, the fault mode is determined to be too low pressure potential fault mode; if the difference between the pressure threshold and the pressure value in the hydraulic cylinder is less than the first threshold, and the pressure threshold is less than the pressure value in the hydraulic cylinder, the fault mode is determined to be a pressure overload potential fault mode.

[0158] Exemplarily, when the opening of the control valve is in the fully open state, the pressure threshold when the control valve is in the fully open state is the first pressure threshold. If the difference between the first pressure threshold and the pressure value in the hydraulic cylinder is less than the first threshold, and the first pressure threshold is greater than the pressure value in the hydraulic cylinder, the fault diagnosis module determines that the fault mode is a potential fault mode of too low pressure; if the difference between the first pressure threshold and the pressure value in the hydraulic cylinder is less than the first threshold, and the first pressure threshold is less than the pressure value in the hydraulic cylinder, the fault diagnosis module determines that the fault mode is a potential fault mode of pressure overload.

[0159] Exemplarily, when the opening of the control valve is half-open, the pressure threshold of the control valve in the half-open state is the second pressure threshold. If the difference between the second pressure threshold and the pressure value in the hydraulic cylinder is less than the first threshold, and the second pressure threshold is greater than the pressure value in the hydraulic cylinder, the fault diagnosis module determines that the fault mode is a potential fault mode of too low pressure; if the difference between the second pressure threshold and the pressure value in the hydraulic cylinder is less than the first threshold, and the second pressure threshold is less than the pressure value in the hydraulic cylinder, the fault diagnosis module determines that the fault mode is a potential fault mode of pressure overload.

[0160] In a possible design, step S201 may include the following steps: the controller receives the fault mode information sent by the fault diagnosis module; and stores the fault information in a memory.

[0161] In this way, after the fault diagnosis module determines the fault mode based on the pressure value and pressure threshold within the hydraulic cylinder, the controller can receive the fault mode information sent by the fault diagnosis module and store the fault mode information in memory. When the fault diagnosis module detects a potential fault mode, the tarpaulin device control system transmits the fault mode information in memory to the vehicle infotainment system (such as the instrument panel display or onboard computer), displaying the real-time operating status of the hydraulic cylinder and providing user information feedback. When the fault diagnosis module detects a complete fault mode, the tarpaulin device control system generates a specific fault code from the fault mode information in memory and stores it in memory. Maintenance technicians can use these fault codes to quickly locate the problem and perform repairs.

[0162] S202 : When the controller detects that the fault diagnosis module determines that it is a potential fault mode, the controller issues an alarm; when the controller detects that the fault diagnosis module determines that it is a complete fault mode, the controller controls the control valve to close.

[0163] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A tarpaulin device control system, characterized in that: include: A tarpaulin device (1) adapted to be slidably mounted on a vehicle body (100); A driving device (2) adapted to provide driving force for the tarpaulin device (1); A detection device (3) adapted to detect vehicle driving information; The controller (4) is electrically connected to the tarpaulin device (1), the driving device (2) and the detection device (3), and is configured as follows: Obtaining the resistance value encountered by the tarpaulin device (1) when opening or closing based on vehicle driving information detected by the detection device (3); The magnitude of the driving force provided by the driving device (2) is determined according to the resistance value encountered when the tarpaulin device (1) is opened or closed.

2. The tarpaulin device control system according to claim 1, characterized in that: Also includes: A speed detection device (5) is electrically connected to the controller (4) and is suitable for detecting the actual opening and closing speed of the tarpaulin device (1); The step of determining the magnitude of the driving force provided by the driving device (2) based on the resistance value encountered by the tarpaulin device (1) when opening and closing comprises: The magnitude of the driving force provided by the driving device (2) is determined based on the resistance value encountered when the tarpaulin device (1) is opened and closed and the actual opening and closing speed of the tarpaulin device (1), so that the actual opening and closing speed of the tarpaulin device (1) reaches a preset opening and closing speed.

3. The tarpaulin device control system according to claim 1 or 2, characterized in that: The detection device (3) comprises: A speed sensor is electrically connected to the controller (4) and is suitable for detecting the driving speed of the vehicle; the vehicle driving information at least includes the driving speed value of the vehicle.

4. The tarpaulin device control system according to claim 3, characterized in that: The method of obtaining the resistance value encountered by the tarpaulin device (1) when opening and closing the tarpaulin device (1) based on the vehicle driving information detected by the detection device (3) comprises: The resistance value encountered by the tarpaulin device (1) when opening and closing is obtained based on the vehicle's driving speed value detected by the speed sensor, and the vehicle's driving speed value is positively correlated with the resistance value encountered by the tarpaulin device (1) when opening and closing.

5. The tarpaulin device control system according to claim 1 or 2, characterized in that: The detection device (3) further comprises: an acceleration sensor electrically connected to the controller (4) and suitable for detecting the acceleration value of the vehicle; the vehicle driving information at least comprises the acceleration value of the vehicle.

6. The tarpaulin device control system according to claim 5, characterized in that: The method of obtaining the resistance value encountered by the tarpaulin device (1) when opening and closing the tarpaulin device (1) based on the vehicle driving information detected by the detection device (3) comprises: The resistance value encountered by the tarpaulin device (1) when opening or closing is obtained based on the acceleration value of the vehicle detected by the acceleration sensor. The acceleration value of the vehicle is positively correlated with the resistance value encountered by the tarpaulin device (1) when opening or closing.

7. The tarpaulin device control system according to claim 1 or 2, characterized in that: The detection device (3) further comprises: a wind speed detection device electrically connected to the controller (4); the wind speed detection device (3) is suitable for detecting the wind speed of the vehicle when it is stationary; and the vehicle driving information at least comprises the wind speed value of the vehicle when it is stationary.

8. The tarpaulin device control system according to claim 7, characterized in that: The method of obtaining the resistance value encountered by the tarpaulin device (1) when opening and closing the tarpaulin device (1) based on the vehicle driving information detected by the detection device (3) comprises: The resistance value encountered by the tarpaulin device (1) when opening and closing is obtained based on the wind speed value detected by the wind speed detection device when the vehicle is stationary. The wind speed value detected by the wind speed detection device when the vehicle is stationary is positively correlated with the resistance value encountered by the tarpaulin device (1) when opening and closing.

9. The tarpaulin device control system according to claim 1 or 2, characterized in that: The detection device (3) further includes: a tarpaulin load detection device electrically connected to the controller (4) and suitable for detecting the load value of the tarpaulin device (1), and the vehicle driving information at least includes the load value of the tarpaulin device (1).

10. The tarpaulin device control system according to claim 9, characterized in that: The method of obtaining the resistance value encountered by the tarpaulin device (1) when opening and closing the tarpaulin device (1) based on the vehicle driving information detected by the detection device (3) comprises: According to the load value of the tarpaulin device (1) detected by the tarpaulin load detection device, the resistance value encountered by the tarpaulin device (1) when opening and closing is obtained, and the load value of the tarpaulin device (1) and the resistance value encountered by the tarpaulin device (1) when opening and closing are positively correlated.

11. The tarpaulin device control system according to claim 2, characterized in that: The detection device (3) further comprises: a turning angle detection device electrically connected to the controller (4) and adapted to detect the turning angle of the vehicle, wherein the vehicle driving information at least comprises the turning angle of the vehicle.

12. The tarpaulin device control system according to claim 11, characterized in that: Also includes: A first transmission assembly (6) connected between the driving device (2) and the tarpaulin device (1); A second transmission assembly (7) is connected between the driving device (2) and the tarpaulin device (1), and the second transmission assembly (7) and the first transmission assembly (6) are arranged on opposite sides of the tarpaulin device (1); The method of obtaining the resistance value encountered by the tarpaulin device (1) when opening and closing the tarpaulin device (1) based on the vehicle driving information detected by the detection device (3) comprises: According to the turning angle of the vehicle detected by the turning angle detection device, the resistance value encountered by the first transmission component (6) and the second transmission component (7) when opening and closing is obtained.

13. The tarpaulin device control system according to claim 12, characterized in that: One of the first transmission assembly (6) and the second transmission assembly (7) is an inner transmission assembly when turning, and the other is an outer transmission assembly; The turning angle of the vehicle is positively correlated with the resistance value of the inner transmission assembly, and the turning angle of the vehicle is negatively correlated with the resistance value of the outer transmission assembly.

14. The tarpaulin device control system according to claim 12, characterized in that: The driving device (2) includes: a hydraulic cylinder (21) in transmission connection with the first transmission assembly (6) and the second transmission assembly (7); the tarpaulin device control system also includes: a pressure sensor (8) electrically connected to the controller (4) and suitable for detecting the pressure value in the hydraulic cylinder (21); the vehicle driving information includes at least the pressure value in the hydraulic cylinder (21); The method of determining the magnitude of the driving force provided by the driving device (2) based on the resistance value encountered by the tarpaulin device (1) when opening and closing comprises: determining the required pressure value in the hydraulic cylinder (21) based on the resistance value encountered by the tarpaulin device (1) when opening and closing, wherein the resistance value encountered by the tarpaulin device (1) when opening and closing is positively correlated with the required pressure value in the hydraulic cylinder (21).

15. The tarpaulin device control system according to claim 14, characterized in that: The hydraulic cylinder (21) comprises: A cylinder body, wherein a hydraulic cavity is provided in the cylinder body, and an oil inlet and an oil return port communicating with the hydraulic cavity are provided on the cylinder body; a piston rod assembly, at least a portion of which is slidably disposed in the hydraulic chamber, and the piston rod assembly is in transmission connection with the first transmission assembly (6) and the second transmission assembly (7); an oil storage device, connected to the oil inlet and the oil return port respectively; an oil pump connected between the oil inlet and the oil storage device, adapted to transport the oil in the oil storage device into the hydraulic chamber; A control valve is electrically connected to the controller (4) and is connected between the oil pump and the hydraulic cylinder (21). The control valve can be opened and closed.

16. The tarpaulin device control system according to claim 15, characterized in that: After determining the required pressure value in the hydraulic cylinder (21) based on the resistance value encountered when the tarpaulin device (1) is opened or closed, the controller (4) is further configured to: According to the required pressure value in the hydraulic cylinder (21), the opening and closing state of the control valve is controlled so that the pressure value in the hydraulic cylinder (21) reaches the required pressure value.

17. The tarpaulin device control system according to claim 14, characterized in that: It also includes an oil temperature detection device (9), which is suitable for detecting the temperature value of the oil in the hydraulic cylinder (21).

18. The tarpaulin device control system according to claim 17, characterized in that: Determining the magnitude of the driving force provided by the driving device (2) based on the resistance value encountered when the tarpaulin device (1) is opened or closed and the actual opening or closing speed of the tarpaulin device (1) comprises: The required pressure value in the hydraulic cylinder (21) is determined based on the resistance value encountered when the tarpaulin device (1) is opened and closed, the actual opening and closing speed of the tarpaulin device (1), and the temperature value of the oil in the hydraulic cylinder (21).

19. The tarpaulin device control system according to claim 15, characterized in that: Also includes: A fault diagnosis module (10) is electrically connected to the pressure sensor (8) and the controller (4), and the fault diagnosis module (10) is suitable for determining a fault mode based on the pressure value in the hydraulic cylinder (21) detected by the pressure sensor (8) and the opening and closing state of the control valve.

20. The tarpaulin device control system according to claim 19, characterized in that: The failure modes include at least: potential failure mode and complete failure mode; The controller (4) is further configured to: when detecting that the fault diagnosis module (10) determines that it is a potential fault mode, the controller (4) issues an alarm; when detecting that the fault diagnosis module (10) determines that it is a complete fault mode, the controller (4) controls the control valve to close.

21. The tarpaulin device control system according to claim 20, characterized in that: Determining the fault mode based on the pressure value in the hydraulic cylinder (21) detected by the pressure sensor (8) and the opening and closing state of the control valve includes: Determining a pressure threshold in the hydraulic cylinder (21) according to the opening and closing state of the control valve; the opening size of the control valve corresponds to the pressure threshold in the hydraulic cylinder (21); The failure mode is determined according to the pressure value in the hydraulic cylinder (21) and the pressure threshold.

22. The tarpaulin device control system according to claim 21, characterized in that: Determining the fault mode according to the pressure value in the hydraulic cylinder (21) and the pressure threshold value includes: If the difference between the pressure threshold and the pressure value in the hydraulic cylinder (21) is greater than or equal to a first threshold, determining that the failure mode is a complete failure mode; If the difference between the pressure threshold and the pressure value in the hydraulic cylinder (21) is smaller than a first threshold, the fault mode is determined to be a potential fault mode.

23. The tarpaulin device control system according to claim 22, characterized in that: The complete failure mode includes: a pressure overload complete failure mode and a low pressure complete failure mode; If the difference between the pressure threshold and the pressure value in the hydraulic cylinder (21) is greater than or equal to a first threshold, determining that the failure mode is a complete failure mode includes: If the difference between the pressure threshold and the pressure value in the hydraulic cylinder (21) is greater than or equal to a first threshold, and the pressure threshold is greater than or equal to the pressure value in the hydraulic cylinder (21), determining that the failure mode is a low pressure complete failure mode; If the difference between the pressure threshold and the pressure value in the hydraulic cylinder (21) is greater than or equal to a first threshold, and the pressure threshold is less than the pressure value in the hydraulic cylinder (21), the failure mode is determined to be a pressure overload complete failure mode.

24. The tarpaulin device control system according to claim 22, characterized in that: The potential failure modes include: a pressure overload potential failure mode and a pressure too low potential failure mode; If the difference between the pressure threshold and the pressure value in the hydraulic cylinder (21) is less than a first threshold, determining that the fault mode is a potential fault mode includes: If the difference between the pressure threshold and the pressure value in the hydraulic cylinder (21) is less than a first threshold, and the pressure threshold is greater than or equal to the pressure value in the hydraulic cylinder (21), determining that the fault mode is a potential fault mode of too low pressure; If the difference between the pressure threshold and the pressure value in the hydraulic cylinder (21) is smaller than a first threshold, and the pressure threshold is smaller than the pressure value in the hydraulic cylinder (21), the fault mode is determined to be a pressure overload potential fault mode.

25. The tarpaulin device control system according to claim 21, characterized in that: Also includes: a memory electrically connected to the controller (4); After determining the fault mode according to the pressure value in the hydraulic cylinder (21) and the pressure threshold, the controller (4) is further configured to: receiving the fault mode information sent by the fault diagnosis module (10); The failure mode information is stored in the memory.

26. A vehicle, characterized in that: The tarpaulin device control system comprises the tarpaulin device control system according to any one of claims 1-25.

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