Tarpaulin device control system and vehicle

Abstract

The invention discloses a tarpaulin device control system and a vehicle, relates to the technical field of vehicles, and aims to solve the problem of how to improve the pressure stability in the opening and closing process of a tarpaulin device. The tarpaulin device control system comprises 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 with the tarpaulin device, the driving device and the detection device, and the controller is configured to obtain a resistance value when the tarpaulin device is opened and closed according to vehicle driving information detected by the detection device; and the driving force provided by the driving device is determined according to the resistance value when the tarpaulin device is opened and closed.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and particularly to a control system for a tarpaulin device and a vehicle. Background Art

[0002] Currently, with the continuous development of automotive technology and the increasing demand of consumers for automotive functions and driving experiences, convertible cars, as a type of vehicle that can provide unique driving experiences, are becoming increasingly popular among consumers.

[0003] However, convertible cars mainly usually achieve the lowering or unfolding of the tarpaulin by controlling the operation of the hydraulic pump and the opening and closing of the control valve. However, in some complex working conditions (such as vehicle acceleration), the tarpaulin is prone to uneven opening or closing during the lifting and lowering process, thus affecting the user's driving experience. Summary of the Invention

[0004] The purpose of the present application is to provide a control system for a tarpaulin device 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 object, the present application adopts the following technical solutions: In a first aspect, the present application provides a control system for a tarpaulin device. The control system for the tarpaulin device includes a tarpaulin device, a driving device, a detection device, and a controller. The tarpaulin device is adapted to be slidably disposed on the vehicle body; the driving device is adapted to provide a driving force for the tarpaulin device; the detection device is adapted to detect the 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 received by the tarpaulin device when opening and closing according to the driving information of the vehicle detected by the detection device; determine the magnitude of the driving force provided by the driving device according to the resistance value received by the tarpaulin device when opening and closing.

[0006] In this way, by electrically connecting the controller to the tarpaulin device, the driving device, and the detection device, the controller can read the driving information of the vehicle detected by the detection device, thereby obtaining the resistance value received by the tarpaulin device when opening and closing according to the driving information of the vehicle detected by the detection device, and determining the magnitude of the driving force provided by the driving device according to the resistance value received by the tarpaulin device when opening and closing, so as to improve the pressure stability during the opening and closing process of the tarpaulin device and enhance the user's driving experience.

[0007] In some embodiments, the control system of the tarpaulin device further includes a speed detection device electrically connected to the controller. The speed detection device is adapted to detect 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 suffered by the tarpaulin device during opening and closing includes: determining the magnitude of the driving force provided by the driving device according to the resistance value suffered by the tarpaulin device during opening and closing and the actual opening and closing speed of the tarpaulin device, so that the actual opening and closing speed of the tarpaulin device reaches the preset opening and closing speed.

[0008] In some embodiments, the detection device includes a speed sensor electrically connected to the controller. The speed sensor is adapted to detect the traveling speed of the vehicle; the vehicle traveling information at least includes the traveling speed value of the vehicle.

[0009] In some embodiments, obtaining the resistance value suffered by the tarpaulin device during opening and closing according to the vehicle traveling information detected by the detection device includes: obtaining the resistance value suffered by the tarpaulin device during opening and closing according to the traveling speed value of the vehicle detected by the speed sensor. There is a positive correlation between the traveling speed value of the vehicle and the resistance value suffered by the tarpaulin device during opening and closing.

[0010] In some embodiments, the detection device further includes an acceleration sensor electrically connected to the controller. The acceleration sensor is adapted to detect the acceleration value of the vehicle; the vehicle traveling information at least includes the acceleration value of the vehicle.

[0011] In some embodiments, obtaining the resistance value suffered by the tarpaulin device during opening and closing according to the vehicle traveling information detected by the detection device includes: obtaining the resistance value suffered by the tarpaulin device during opening and closing according to the acceleration value of the vehicle detected by the acceleration sensor. There is a positive correlation between the acceleration value of the vehicle and the resistance value suffered by the tarpaulin device during opening and closing.

[0012] In some embodiments, the detection device further includes a wind speed detection device electrically connected to the controller. The wind speed detection device is adapted to detect the wind speed magnitude of the vehicle when it is stationary; the vehicle traveling information at least includes the wind speed value of the vehicle when it is stationary.

[0013] In some embodiments, obtaining the resistance value suffered by the tarpaulin device during opening and closing according to the vehicle traveling information detected by the detection device includes: obtaining the resistance value suffered by the tarpaulin device during opening and closing according to the wind speed value of the vehicle when it is stationary detected by the wind speed detection device. There is a positive correlation between the wind speed value of the vehicle when it is stationary and the resistance value suffered by the tarpaulin device during opening and closing.

[0014] In some embodiments, the detection device further includes a tarpaulin load detection device electrically connected to the controller. The tarpaulin load detection device is adapted to detect the load value of the tarpaulin device; the vehicle traveling information at least includes the load value of the tarpaulin device.

[0015] In some embodiments, according to the vehicle driving information detected by the detection device, obtaining the resistance value when the tarpaulin device opens and closes includes: obtaining the resistance value when the tarpaulin device opens and closes according to the load value of the tarpaulin device detected by the tarpaulin load detection device, and there is a positive correlation between the load value of the tarpaulin device and the resistance value when the tarpaulin device opens and closes.

[0016] In some embodiments, the detection device further includes a turning angle detection device electrically connected to the controller. The turning angle detection device is adapted to detect the turning angle of the vehicle, and the vehicle driving information at least includes the turning angle of the vehicle.

[0017] In some embodiments, the tarpaulin device control system further includes a first transmission component and a second transmission component. The first transmission component is connected between the driving device and the tarpaulin device; the second transmission component is connected between the driving device and the tarpaulin device, and the second transmission component and the first transmission component are arranged on opposite sides of the tarpaulin device; according to the vehicle driving information detected by the detection device, obtaining the resistance value when the tarpaulin device opens and closes includes: obtaining the resistance values when the first transmission component and the second transmission component open and close according to the turning angle of the vehicle detected by the turning angle detection device.

[0018] In some embodiments, one of the first transmission component and the second transmission component is the inner side transmission component during turning, and the other is the outer side transmission component; there is a positive correlation between the turning angle of the vehicle and the resistance value of the inner side transmission component, and there is a negative correlation between the turning angle of the vehicle and the resistance value of the outer side transmission component.

[0019] In some embodiments, the driving device includes a hydraulic cylinder. The hydraulic cylinder is in transmission connection with the first transmission component and the second transmission component; the tarpaulin device control system further includes a pressure sensor electrically connected to the controller and adapted to detect the pressure value in the hydraulic cylinder; the driving information at least includes the pressure value in the hydraulic cylinder; determining the magnitude of the driving force provided by the driving device according to the resistance value when the tarpaulin device opens and closes includes: determining the required pressure value in the hydraulic cylinder according to the resistance value when the tarpaulin device opens and closes, and there is a positive correlation between the resistance value when the tarpaulin device opens and closes and the required pressure value in the hydraulic cylinder.

[0020] 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 cavity is arranged in the cylinder body, and an oil inlet and an oil return port communicating with the hydraulic cavity are arranged on the cylinder body; at least part of the piston rod assembly is slidably arranged in the hydraulic cavity, and the piston rod assembly is in transmission connection with the first transmission component and the second transmission component; 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 adapted to transport the oil in the oil storage device to the hydraulic cavity; 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 opened and closed.

[0021] In some embodiments, after determining the required pressure value in the hydraulic cylinder according to the resistance value suffered by the tarpaulin device when it is opened and closed, the controller is further configured to: control the opening and closing state of the control valve according to the required pressure value in the hydraulic cylinder, so that the pressure value in the hydraulic cylinder reaches the required pressure value.

[0022] In some embodiments, the detection device further includes an oil temperature detection device, and the oil temperature detection device is adapted to detect the temperature value of the oil in the hydraulic cylinder.

[0023] In some embodiments, determining the magnitude of the driving force provided by the driving device according to the resistance value suffered by the tarpaulin device when it 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 according to the resistance value suffered by the tarpaulin device when it 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.

[0024] In some embodiments, the tarpaulin device control system further includes a fault diagnosis module, which is electrically connected to the pressure sensor and the controller, and the fault diagnosis module is adapted to determine the fault mode according to the pressure value in the hydraulic cylinder detected by the pressure sensor and the opening and closing state of the control valve.

[0025] In some embodiments, the fault mode at least includes a potential fault mode and a complete fault mode; the controller is further configured to: when it is detected that the fault diagnosis module determines it as a potential fault mode, the controller gives an alarm; when it is detected that the fault diagnosis module determines it as a complete fault mode, the controller controls the control valve to close.

[0026] In some embodiments, determining the fault mode according to the pressure value in the hydraulic cylinder detected by the pressure sensor and the opening and closing state of the control valve includes: determining the pressure threshold value in the hydraulic cylinder according to the opening and closing state of the control valve; the opening degree of the control valve and the pressure threshold value in the hydraulic cylinder correspond one by one; determining the fault mode according to the pressure value in the hydraulic cylinder and the pressure threshold value.

[0027] In some embodiments, determining the fault mode according to the pressure value in the hydraulic cylinder and the pressure threshold value includes: if the difference between the pressure threshold value and the pressure value in the hydraulic cylinder is greater than or equal to the first threshold value, determining the fault mode as a complete fault mode; if the difference between the pressure threshold value and the pressure value in the hydraulic cylinder is less than the first threshold value, determining the fault mode as a potential fault mode.

[0028] In some embodiments, the complete failure mode includes a complete pressure overload failure mode and a complete low - pressure 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, it is determined that the failure mode is 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, it is determined that the failure mode is a complete low - pressure 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, it is determined that the failure mode is a complete pressure overload failure mode.

[0029] In some embodiments, the potential failure mode includes a potential pressure overload failure mode and a potential low - pressure failure mode; if the difference between the pressure threshold and the pressure value in the hydraulic cylinder is less than the first threshold, it is determined that the failure mode is a potential failure mode, including: 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, it is determined that the failure mode is a potential low - pressure failure 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, it is determined that the failure mode is a potential pressure overload failure mode.

[0030] In some embodiments, the tarpaulin device control system further includes a memory electrically connected to the controller; after determining the failure mode according to the pressure value in the hydraulic cylinder and the pressure threshold, the controller is further configured to: receive the failure mode information sent by the failure diagnosis module; store the failure information in the memory.

[0031] In a second aspect, a vehicle is further provided, including a tarpaulin device control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 It is a schematic structural diagram of a vehicle provided by some embodiments of the present application; Figure 2 It is a schematic structural diagram of a tarpaulin device control system provided by some embodiments of the present application; Figure 3 It is one of the flowcharts of the opening and closing control method of a tarpaulin device provided by some embodiments of the present application; Figure 4The second flowchart of the opening and closing control method for a tarpaulin device provided by some embodiments of the present application.

[0034] Reference numerals: 1000, vehicle; 100, vehicle body; 200, tarpaulin device control system; 1, tarpaulin device; 2, driving device; 21, hydraulic cylinder; 3, detection device; 4, controller; 5, speed detection device; 6, first transmission component; 7, second transmission component; 8, pressure sensor; 9, oil temperature detection device; 10, fault diagnosis module. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 should not be construed as a limitation to the present invention.

[0037] The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0038] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", "joined", and "communicated" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. It may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0039] In the embodiments of the present application, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, article or device including the element.

[0040] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0041] In the description of this specification, specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner.

[0042] As Figure 1 shown, Figure 1 is a schematic structural diagram of a vehicle 1000 provided by some embodiments of the present application. The present application provides a vehicle 1000, and the vehicle 1000 may be a pure fuel vehicle, a pure electric vehicle, a fuel-electric hybrid vehicle, etc. The vehicle 1000 may also be a sedan, a bus, a truck, etc.

[0043] Please continue to refer to Figure 1 , the vehicle 1000 may include a vehicle body 100 and a tarpaulin device control system 200 provided on the vehicle body 100. The tarpaulin device control system 200 is used to control the opening and closing of the tarpaulin device 1. The tarpaulin device control system 200 in the related art may only provide several fixed opening and closing modes and cannot dynamically adjust the pressure of the hydraulic oil according to the driver's needs or external conditions, and it is easy to occur the phenomenon that the opening and closing process of the tarpaulin device 1 is not smooth, resulting in poor user experience. Especially in the scenarios of seeking personalized comfort or seeking a perfect dynamic integration with the vehicle 1000, the limitations of the tarpaulin device control system 200 may be more obvious.

[0044] Based on this, in some embodiments, please refer to Figure 2 , Figure 2 which is a schematic structural 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.

[0045] Among them, the tarpaulin device 1 is adapted to be slidably disposed on the vehicle body 100, that is, the tarpaulin device 1 is slidably connected to the vehicle body 100 so that the tarpaulin device 1 can be closed and opened. When the tarpaulin device 1 is closed, the open top of the vehicle 1000 is covered by the tarpaulin device 1, isolating the interior driving space from the external environment, and a relatively independent space is formed inside the vehicle, increasing the privacy of the passengers. When the tarpaulin device 1 is opened, the roof is open, and the view of the passengers is no longer restricted by the top tarpaulin device 1, and they can directly see the sky and the surrounding environment, enhancing the sense of space of the passengers.

[0046] 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 to drive the tarpaulin device 1 to open or close. Exemplarily, the driving device 2 may be a hydraulic cylinder 21, and the driving device 2 may also be a motor, etc. The present application does not limit this.

[0047] In addition, the detection device 3 may be directly disposed on the vehicle body 100, and the detection device 3 may also be disposed on the tarpaulin device 1. The present application does not limit this. The detection device 3 is adapted to detect the driving information of the vehicle 1000. The driving information may include: the driving speed value of the vehicle 1000, the acceleration value of the vehicle 1000, etc. For the convenience of understanding, the present application does not describe it here temporarily, and reference can be made to the following description.

[0048] In addition, the controller 4 is electrically connected to the tarpaulin device 1, the driving device 2, and the detection device 3. In some embodiments, the controller 4 may be a microcontroller unit (MCU). Among them, the MCU is also called a single-chip microcomputer or a single-chip microcontroller. It appropriately reduces the frequency and specifications of the central processing unit (CPU), and integrates peripherals such as memory, counter (Timer), USB, A / D conversion, UART, PLC, DMA, and even the LCD driving circuit on a single chip to form a chip-level computer for different combinations of control for different application scenarios.

[0049] In some 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 thereon.

[0050] 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 operates to achieve the opening and closing control of the tarpaulin device 1.

[0051] Exemplarily, the controller 4 may execute the following control instructions: according to the driving information of the vehicle 1000 detected by the detection device 3, obtain the resistance value suffered by the tarpaulin device 1 when opening and closing; according to the resistance value suffered by the tarpaulin device 1 when opening and closing, determine the magnitude of the driving force provided by the driving device 2.

[0052] In this way, by electrically connecting the controller 4 to the tarpaulin device 1, the driving device 2, and the detection device 3, the controller 4 can calculate the resistance value suffered by the tarpaulin device 1 when opening and closing according to the driving information of the vehicle 1000 obtained by the detection device 3, and determine the magnitude of the driving force that the driving device 2 should provide accordingly. Thus, regardless of the driving state of the vehicle 1000, the tarpaulin device 1 can be smoothly opened and closed under the action of an appropriate driving force, avoiding the slow opening or jamming of the tarpaulin device 1 due to insufficient driving force, and the damage to the tarpaulin device 1 or related components caused by excessive driving force.

[0053] Exemplarily, when the vehicle 1000 is driving at a medium speed (for example, the speed of the vehicle 1000 is greater than 30 km / h and less than 50 km / h), the wind resistance will exert a greater force on the tarpaulin device 1. The detection device 3 can transmit the vehicle speed information to the controller 4 so that the controller 4 can obtain the resistance value suffered by the tarpaulin device 1 when opening and closing. The controller 4 accordingly increases the driving force of the driving device 2 to keep the tarpaulin device 1 in a taut state and avoid fluttering or deformation due to wind resistance. Since the driving force is adjusted in real time according to the actual driving speed and possible wind resistance conditions, the opening and closing process of the tarpaulin device 1 can still be smooth at high speeds, without violent shaking or being pulled by the wind.

[0054] Exemplarily, when the detection device 3 detects that the vehicle speed is low (for example, the speed of the vehicle 1000 is less than or equal to 30 km / h) or the vehicle 1000 is stationary, the controller 4 can reduce the driving force of the driving device 2, so that the tarpaulin device moves slowly and with moderate force during the opening and closing processes. This can facilitate passengers to get in and out of the vehicle 1000, and at the same time avoid the tarpaulin device 1 moving quickly due to excessive driving force, resulting in collisions with the vehicle body 100 or surrounding objects, ensuring the gentle and smooth opening and closing of the tarpaulin device under this working condition.

[0055] In addition, the controller 4 can accurately provide the driving force according to the actual resistance situation, avoiding unnecessary energy consumption. Compared with the traditional fixed driving force system, it can effectively reduce the energy consumption of the driving device 2 on the premise of ensuring the normal operation of the tarpaulin device 1, achieving the effect of energy saving.

[0056] 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.

[0057] In a possible structural design, the speed detection device 5 can be a laser velocimeter. The laser velocimeter emits a laser beam, irradiates on the surface of the tarpaulin device 1, and then measures the Doppler frequency shift of the reflected light of the laser beam to calculate the moving speed of the tarpaulin device 1. The laser velocimeter utilizes the Doppler effect of light, that is, when there is relative motion between the light source and the observer, the frequency of the light received by the observer will change.

[0058] 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, and these pulses can be used to control angular displacement. Among them, a rotary encoder can be installed on the drive shaft or related rotating components of the tarpaulin device 1. When the tarpaulin device 1 is opened or closed, the rotation of the drive shaft will drive 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 then the opening and closing speed of the tarpaulin device 1 can be obtained.

[0059] 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 back the actual opening and closing speed information 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 timely adjust the driving force of the driving device 2 to ensure that the tarpaulin device 1 opens or closes smoothly according to the preset speed, ensuring the smooth opening and closing of the tarpaulin device 1.

[0060] Exemplarily, when the vehicle 1000 is traveling at a medium speed (for example, the speed of the vehicle 1000 is greater than 30 km / h and less than 50 km / h), at this time, the wind resistance will exert a large force on the tarpaulin device 1, resulting in the actual opening and closing speed of the tarpaulin device 1 being less than the preset opening and closing speed of the tarpaulin device 1. The controller 4 increases the driving force of the driving device 2 according to the resistance value received when the tarpaulin device 1 opens and closes 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 the preset opening and closing speed, further keeping the tarpaulin in a taut state and avoiding fluttering or deformation due to wind resistance. Since the driving force is adjusted in real time according to the resistance value received when the tarpaulin device 1 opens and closes and the actual opening and closing speed of the tarpaulin device 1, then, the opening and closing process of the tarpaulin device 1 can still remain smooth during high-speed driving, without violent shaking or being pulled by the wind.

[0061] 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 adapted to detect the traveling speed of the vehicle 1000. The traveling information of the vehicle 1000 at least includes the traveling speed value of the vehicle 1000.

[0062] In a possible structural design, the speed sensor can be a wheel speed sensor, and the wheel speed sensor can be an electromagnetic induction type or a Hall type sensor. The electromagnetic induction type wheel speed sensor is composed of a permanent magnet, an induction coil, and a toothed ring. The toothed ring is installed on the wheel hub. When the wheel rotates, the tooth tips and tooth valleys of the toothed ring alternately pass through the induction coil, causing the magnetic flux in the induction coil to change, thereby generating an induced electromotive force, and its frequency is proportional to the wheel speed. The Hall type wheel speed sensor utilizes the Hall effect. When the toothed ring rotates, the magnetic field change causes the Hall element to generate a periodic Hall voltage to detect the wheel speed.

[0063] In a possible structural design, the speed sensor can also be a radar speed measurement device, and the radar speed measurement device can include a Doppler radar and a lidar. The Doppler radar utilizes the Doppler effect of microwaves to emit microwave signals to the vehicle 1000. When the vehicle 1000 moves, the frequency of the reflected wave will change, and the speed of the vehicle 1000 is calculated by measuring the frequency difference. The lidar calculates the distance change between the vehicle 1000 and the radar by emitting laser pulses and measuring the time when the laser is reflected back, and then obtains the speed of the vehicle 1000.

[0064] It can be understood that when the vehicle 1000 travels at different speeds, the resistance such as wind resistance suffered by the tarpaulin device 1 during opening and closing will be different. Since the speed sensor can detect the driving speed value of the vehicle 1000 in real time and feed it back to the controller 4, the controller 4 can calculate the resistance suffered by the tarpaulin device 1 during opening and closing more accurately based on this information, and then adjust the driving force provided by the driving device 2 accordingly. For example, when the vehicle 1000 travels at a high speed, the wind resistance is large, and the controller 4 will increase the driving force to ensure that the tarpaulin device 1 can be opened and closed smoothly; when the vehicle 1000 travels at a low speed, the driving force is appropriately reduced to avoid damage to the tarpaulin device 1 and related components caused by excessive driving force.

[0065] 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 adapted to detect the acceleration value of the vehicle 1000; the driving information of the vehicle 1000 at least includes the acceleration value of the vehicle 1000.

[0066] Exemplarily, the acceleration sensor can be a piezoelectric acceleration sensor. Based on the piezoelectric effect, when some crystal materials (such as quartz, piezoelectric ceramics) are deformed under the action of an external force, charges will be generated on their surfaces, and the magnitude of the charges is proportional to the external force. When the sensor senses acceleration, the mass block will apply a force to the piezoelectric material, thereby generating a charge signal proportional to the acceleration, and the magnitude of the acceleration is determined by measuring the charge signal.

[0067] Exemplarily, the acceleration sensor can also be a piezoresistive acceleration sensor. The piezoresistive acceleration sensor utilizes the piezoresistive effect. When a semiconductor material (such as silicon) is subjected to a stress, its resistance value will change. The mass block in the sensor generates a force under the action of acceleration, causing the piezoresistive element to be stressed, resulting in a change in resistance, and the acceleration is detected by measuring the change in resistance.

[0068] It can be understood that the change in the acceleration of the vehicle 1000 will change the inertial force and air resistance suffered by the tarpaulin device 1. Since the acceleration sensor detects the acceleration value of the vehicle 1000 in real time and feeds it back to the controller 4, the controller 4 can more accurately estimate the dynamic change of the resistance suffered by the tarpaulin device 1 during the opening and closing process in combination with the acceleration information. For example, when the vehicle 1000 accelerates, the tarpaulin device 1 generates a greater pulling force backward due to inertia, and the controller 4 can timely increase the driving force of the driving device 2 according to the magnitude of the acceleration to ensure the smooth opening or closing of the tarpaulin device 1; when the vehicle 1000 decelerates, the driving force is correspondingly reduced to avoid unnecessary impact on the tarpaulin device 1.

[0069] In some embodiments of the present application, the detection device 3 further 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 adapted to detect the magnitude of the wind speed when the vehicle 1000 is stationary; the driving information of the vehicle 1000 at least includes the wind speed value when the vehicle 1000 is stationary.

[0070] Exemplarily, the wind speed detection device may be a detection device such as a propeller anemometer or an ultrasonic anemometer, and the present application does not limit this.

[0071] It should be noted that the wind speed when the vehicle 1000 is stationary will affect the wind force received by the tarp device 1 during the opening or closing process. The greater the wind speed, the greater the resistance received by the tarp device 1. After the wind speed detection device feeds the wind speed value back to the controller 4, the controller 4 can accurately calculate the driving force required for the tarp device 1 to open and close according to this wind speed value. For example, in strong wind weather, the controller 4 will correspondingly increase the driving force of the driving device 2 to ensure that the tarp device 1 can be opened and closed smoothly, and avoid the tarp device 1 being unable to operate normally or being damaged due to insufficient driving force.

[0072] In some embodiments of the present application, the detection device 3 may further include: a tarp load detection device, the tarp load detection device is electrically connected to the controller 4, and is adapted to detect the load value of the tarp device 1, and the driving information of the vehicle 1000 at least includes the load value of the tarp device 1.

[0073] In a possible structural design, the tarp load detection device may be a pressure sensor, and the pressure sensor may be installed on the support structure or fixed point of the tarp. When the tarp bears a load, it will generate pressure on the support structure, and the pressure sensor 8 converts the pressure signal into an electrical signal, and determines the load value of the tarp by measuring the magnitude of the electrical signal.

[0074] In another possible structural design, the tarp load detection device may be a strain gauge sensor, that is, the strain gauge is pasted on the stressed component of the tarp. When the tarp bears a load, the stressed component will deform, and the resistance value of the strain gauge will also change accordingly. By measuring the change in the resistance value of the strain gauge, the stress borne by the stressed component can be calculated, and then the load value of the tarp can be obtained.

[0075] It should be noted that when the vehicle 1000 is running in bad weather such as rain or snow, objects such as rain or snow act on the tarpaulin device 1, causing the tarpaulin to bear a certain load, resulting in the inability of the tarpaulin device 1 to open and close smoothly. In the embodiment of the present application, by setting a tarpaulin load detection device, and the tarpaulin load detection device monitors the load value of the tarpaulin device 1 in real time. Then, according to the detected load value, the controller 4 can optimize the driving force required for the opening and closing of the tarpaulin, ensuring that the tarpaulin device 1 can open and close smoothly. For example, when the load is large, the driving force is increased to ensure smooth operation and reduce damage to the tarpaulin and the device.

[0076] In some embodiments of the present application, the detection device 3 may further include: a turning angle detection device, which is electrically connected to the controller 4 and is adapted to detect the turning angle of the vehicle 1000. The driving information of the vehicle 1000 at least includes the turning angle of the vehicle 1000.

[0077] In a possible structural design, the turning angle detection device may be a steering wheel angle sensor, and the steering wheel steering angle sensor may be a photoelectric steering wheel steering angle sensor. The photoelectric steering wheel steering angle sensor is composed of a light-emitting element, a grating code disk, a photoelectric receiver and a signal processing circuit. The grating code disk is installed on the steering column of the steering wheel. The disk surface of the grating code disk is engraved with light-transmitting grooves or reflective stripes with special patterns. When the steering wheel rotates, the light-transmitting grooves or reflective stripes periodically block or transmit the light emitted by the light-emitting component, forming light pulses with alternating light and darkness. The photoelectric receiver converts the light pulses into electrical signals, and the signal processor converts the electrical signals into digital signals to detect the turning angle of the vehicle 1000.

[0078] In another possible structural design, the turning angle detection device may also be a wheel steering angle sensor, and the wheel steering angle sensor may be a potentiometer type wheel steering angle sensor. The potentiometer type wheel steering angle sensor includes a resistance element, a sliding contact, a housing and a mechanical interface and a signal output circuit. The housing and the mechanical interface are connected to the wheel. When the wheel rotates, the sliding contact slides on the resistance element, and the output voltage changes in proportion to the resistance. The signal output circuit outputs an electrical signal proportional to the steering angle to detect the turning angle of the vehicle 1000.

[0079] It can be understood that the turning of the vehicle body 100 will change the force condition of the centripetal acceleration when the tarpaulin device 1 opens and closes. When the vehicle 1000 is in a turning state, the centripetal acceleration of the tarpaulin will change, thereby changing the resistance during the opening and closing process. Since the turning angle detection device can feedback the turning angle information of the vehicle 1000 to the controller 4 in real time, the controller 4 can accurately calculate the resistance value when the tarpaulin device 1 opens and closes according to the turning angle information of the vehicle 1000, and then adjust the magnitude of the driving force provided by the driving device 2.

[0080] 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 adapted to detect the inclination angle of the vehicle body 100.

[0081] In a possible structural design, the inclination angle detection device may be an inclination sensor, which measures the angle by the change of the component of gravitational acceleration at different inclination angles. The inclination sensor is based on micro-electro-mechanical system (MEMS) technology and has a sensitive element inside. When the vehicle body 100 inclines, the sensitive element will sense the change of gravitational acceleration and convert it into an electrical signal, and the inclination angle of the vehicle body 100 is calculated through a signal processing circuit.

[0082] In another possible structural design, the inclination angle detection device may also be a gyroscope sensor, which is based on the principle of conservation of angular momentum and determines the rotation angle of the vehicle body 100 by measuring the precession angular velocity of the gyro rotor, and then calculates the inclination angle of the vehicle body 100. When the vehicle body 100 inclines, the gyroscope will generate corresponding precession, and its precession angular velocity is proportional to the inclination angular velocity of the vehicle body 100.

[0083] It can be understood that the inclination of the vehicle body 100 will change the force condition when the awning device 1 is opened and closed. When the vehicle 1000 is in an inclined state, the gravity distribution of the awning will change, so that the resistance received during the opening and closing process will change. Since the inclination angle detection device can feedback the inclination angle information of the vehicle body 100 to the controller 4 in real time, the controller 4 can accurately calculate the resistance value when the awning device 1 is opened and closed according to the inclination angle information of the vehicle body 100, and then adjust the magnitude of the driving force provided by the driving device 2. For example, when the vehicle 1000 is going uphill, the vehicle body 100 inclines forward, and the awning may be hindered by greater gravity during the opening process. The controller 4 can increase the driving force to ensure the smooth opening of the awning; when going downhill, the driving force is correspondingly reduced.

[0084] In some embodiments, the awning device control system 200 further includes a first transmission assembly 6 and a second transmission assembly 7. The first transmission assembly 6 is connected between the driving device 2 and the awning device 1, and the second transmission assembly 7 is connected between the driving device 2 and the awning device 1, and the second transmission assembly 7 and the first transmission assembly 6 are arranged on opposite sides of the awning device 1.

[0085] Optionally, the structures of the first transmission assembly 6 and the second transmission assembly 7 may be the same, and the structures of the first transmission assembly 6 and the second transmission assembly 7 may also be different. The present application does not make any limitation in this regard.

[0086] In a possible structural design, the first transmission assembly 6 and the second transmission assembly 7 can be link mechanisms. The link mechanism includes a power source, a main link, a support rod, and hinge joints. The support rod is connected to the awning device 1. The rotational / linear motion of the power source is converted into the motion of the support rod of the awning device 1 through the main link, and the hinge joints adapt to the motion of the support rod of the awning device 1 to realize the opening or closing of the awning device 1.

[0087] In another possible structural design, the first transmission assembly 6 and the second transmission assembly 7 can also be gear mechanisms. The gear mechanism includes a driving gear, a driven gear, and a rack. The rack is connected to the awning device 1. The driving gear drives the driven gear to move on the rack to realize the opening or closing of the awning device 1.

[0088] Among them, the first transmission assembly 6 and the second transmission assembly 7 can be respectively arranged on opposite sides of the awning device 1 along the width direction of the vehicle 1000 (i.e., the arrangement direction of the driver's seat and the co-driver's seat). Then, when the vehicle 1000 turns, one of the first transmission assembly 6 and the second transmission assembly 7 is the inner transmission assembly during turning, and the other is the outer transmission assembly. Exemplarily, the first transmission assembly 6 is connected to the left side of the awning device 1, and the second transmission assembly 7 is connected to the right side of the awning device 1. Then, when the vehicle 1000 turns left, the first transmission assembly 6 is the inner transmission assembly, and the second transmission assembly 7 is the outer transmission assembly. When the vehicle 1000 turns right, the first transmission assembly 6 is the outer transmission assembly, and the second transmission assembly 7 is the inner transmission assembly.

[0089] In the embodiment of the present application, by arranging both the first transmission assembly 6 and the second transmission assembly 7 between the driving device 2 and the awning device 1, the controller 4 obtains the resistance value received when the awning device 1 is opened or closed according to the driving information of the vehicle 1000 detected by the detection device 3, and then determines the magnitude of the driving force provided by the driving device 2 according to the resistance value received when the awning device 1 is opened or closed, thereby obtaining the forces transmitted by the first transmission assembly 6 and the second transmission assembly 7, so as to apply the forces transmitted by the first transmission assembly 6 and the second transmission assembly 7 to the awning device 1 to realize the opening or closing of the awning device 1.

[0090] In some embodiments, the driving device 2 can include a hydraulic cylinder 21. The hydraulic cylinder 21 is in transmission connection with the first transmission assembly 6 and the second transmission assembly 7; the awning device control system 200 further includes a pressure sensor 8. The pressure sensor 8 is electrically connected to the controller 4 and is adapted to detect the pressure value in the hydraulic cylinder 21; the driving information of the vehicle 1000 at least includes the pressure value in the hydraulic cylinder 21.

[0091] Through the transmission connection between the hydraulic cylinder 21 and the first transmission assembly 6 and the second transmission assembly 7, the pressure in the hydraulic cylinder 21 drives the first transmission assembly 6 and the second transmission assembly 7 to move, realizing the opening or closing of the awning device 1.

[0092] In a possible structural design, the hydraulic cylinder 21 may include: a cylinder block, a piston rod assembly, an oil storage device, an oil pump, and a control valve. A hydraulic cavity is provided in the cylinder block, and an oil inlet and an oil return port communicating with the hydraulic cavity are provided on the cylinder block; at least a part of the piston rod assembly is slidably disposed in the hydraulic cavity, and the piston rod assembly is in transmission connection with the first transmission assembly 6 and the second transmission assembly 7. That is, one end of the piston rod assembly is slidably disposed in the hydraulic cavity, and the other end of the piston rod assembly can extend out of the hydraulic cavity and is respectively connected to the first transmission assembly 6 and the second transmission assembly 7. Then, when the hydraulic fluid enters the hydraulic cylinder 21, the pressure inside the hydraulic cylinder 21 increases, thereby pushing the piston rod to slide, and further driving the first transmission assembly 6 and the second transmission assembly 7 to move, so as to make the tarpaulin device 1 slide.

[0093] In addition, the oil storage device is respectively connected to the oil inlet and the oil return port. The oil storage device can be an oil storage pot, and the oil storage device can also be an oil tank. The present application does not make any limitation thereto. The oil pump is connected between the oil inlet and the oil storage device and is adapted to deliver the hydraulic fluid in the oil storage device to the hydraulic cavity. Optionally, the oil pump can be a gear pump, a vane pump, a piston pump, a screw pump, etc. The present application does not make any limitation thereto.

[0094] In addition, the 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. The present application does not make any limitation thereto. It can be understood that the control valve needs to realize that the opening degree of the valve body is adjustable. Exemplarily, the opening degree of the valve body can be fully open, fully closed, half open, half closed, etc.

[0095] It should be noted that the caliber of the oil return port is fixed. Then, the flow rate of the hydraulic fluid in the hydraulic cylinder 21 is fixed when it flows back. Thus, by adjusting the opening degree of the control valve, the flow rate of the hydraulic fluid flowing into the hydraulic cavity can be controlled, and further the magnitude of the pressure value in the hydraulic cavity can be controlled.

[0096] In the embodiment of the present application, at least a part of the piston rod assembly in the hydraulic cylinder 21 is slidably disposed 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 adapted to detect the pressure value in the hydraulic cylinder 21. The control valve can control the movement of the piston rod assembly in the hydraulic cavity, thereby changing the pressure value of the hydraulic fluid in the hydraulic cylinder 21 and 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.

[0097] In some embodiments, the tarpaulin device control system 200 further includes an oil temperature detection device 9, and the oil temperature detection device 9 is adapted to detect the temperature value of the hydraulic fluid in the hydraulic cylinder 21.

[0098] In a possible structural design, the oil temperature detection device 9 can be an oil temperature sensor, which can be installed inside the hydraulic cylinder 21 or on the pipeline at the outlet of the hydraulic cylinder 21. The oil temperature sensor uses a negative temperature coefficient (NTC) thermistor to make the resistance in the circuit change with temperature, and determines the temperature value of the oil in the hydraulic cylinder 21 through the change of the resistance. Specifically, when the temperature value of the oil in the hydraulic cylinder 21 increases, the resistance value decreases; when the temperature value of the oil in the hydraulic cylinder 21 decreases, the resistance value increases.

[0099] 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.

[0100] It can be understood that the increase in the temperature of the oil in the hydraulic cavity will cause the volume of the oil to expand. In a closed hydraulic cavity, the expansion of the oil volume will lead to an increase in pressure. On the contrary, if the temperature of the oil in the hydraulic cavity decreases, it will lead to a decrease in the pressure in the hydraulic cavity. Then, the temperature of the oil in the hydraulic cavity will affect the pressure value of the oil in the hydraulic cylinder 21, that is, the temperature of the oil in the hydraulic cavity will affect the driving force of the driving device 2.

[0101] Since the oil temperature detection device 9 can detect the temperature value of the oil in the hydraulic cylinder 21 in real time and feedback it to the controller 4, then 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, avoiding deviation of the pressure value in the hydraulic cavity due to different oil temperatures, and further improving the accuracy of the awning device control system 200.

[0102] In some embodiments, the awning device control system 200 further 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 adapted to determine the fault mode according to the pressure value in the hydraulic cylinder 21 detected by the pressure sensor 8 and the opening and closing states of the control valves.

[0103] Through the fault diagnosis module 10, which is electrically connected to the pressure sensor 8 and the controller 4, the fault diagnosis module 10 can determine the fault mode quickly according to the pressure value in the hydraulic cylinder 21 detected by the pressure sensor 8 and the opening and closing states of the control valves.

[0104] Next, in combination with the accompanying drawings of the specification, the embodiments provided by the present application will be specifically introduced.

[0105] The embodiment of the present application provides a method for controlling the opening and closing of an awning device, which can be applied to the above-mentioned awning device control system. The method for controlling the opening and closing of the awning device, as Figure 3 and Figure 4 shown, may include the following steps: S101. The controller obtains the resistance value suffered by the tarpaulin device when opening and closing according to the vehicle driving information detected by the detection device.

[0106] Among them, the vehicle driving information at least includes: any combination of one or more of the driving speed value of the vehicle, the acceleration value of the vehicle, the inclination angle of the vehicle body, the wind speed value when the vehicle is stationary, the load value of the tarpaulin device, and the turning angle of the vehicle.

[0107] When the vehicle driving information includes the driving speed value of the vehicle, this step S101 may include the following steps: The controller obtains the resistance value suffered by the tarpaulin device when opening and closing according to the driving speed value of the vehicle detected by the speed sensor. Among them, the driving speed value of the vehicle is positively correlated with the resistance value suffered by the tarpaulin device when opening and closing, that is, the greater the driving speed value of the vehicle, the greater the resistance value suffered by the tarpaulin device when opening and closing.

[0108] When the vehicle driving speed is different, the resistance such as wind resistance suffered by the tarpaulin device when opening and closing will be different. Since the controller can obtain the vehicle driving speed value detected by the speed sensor in real time, the controller can calculate the resistance suffered by the tarpaulin device when opening and closing more accurately based on this information, and then adjust the driving force provided by the driving device accordingly. For example, when the vehicle is driving at a high speed, the wind resistance is large, and the controller will increase the driving force to ensure that the tarpaulin device can be opened and closed smoothly; when the vehicle is driving at a low speed, the driving force is appropriately reduced to avoid damage to the tarpaulin device and related components caused by excessive driving force.

[0109] When the vehicle driving information includes the acceleration value of the vehicle, this step S101 may include the following steps: The controller obtains the resistance value suffered by the tarpaulin device when opening and closing according to the acceleration value of the vehicle detected by the acceleration sensor. Among them, the acceleration value of the vehicle is positively correlated with the resistance value suffered by the tarpaulin device when opening and closing, that is, the greater the acceleration value of the vehicle, the greater the resistance value suffered by the tarpaulin device when opening and closing.

[0110] Among them, the change in vehicle acceleration will change the inertial force and air resistance suffered by the tarpaulin device. Since the controller can obtain the vehicle acceleration value detected by the acceleration sensor in real time, the controller can more accurately estimate the dynamic change of the resistance suffered by the tarpaulin device during the opening and closing process in combination with the acceleration information. For example, when the vehicle is accelerating, the tarpaulin device generates a greater backward pull due to inertia, and the controller can timely increase the driving force of the driving device according to the magnitude of the acceleration to ensure the smooth opening or closing of the tarpaulin device; when the vehicle is decelerating, the driving force is correspondingly reduced to avoid unnecessary impact on the tarpaulin device.

[0111] When the driving information of the vehicle includes the wind speed value when the vehicle is stationary, step S101 may include the following steps: The controller obtains the resistance value suffered when the tarpaulin device opens and closes according to the wind speed value when the vehicle is stationary detected by the wind speed detection device. Among them, the wind speed value when the vehicle is stationary is positively correlated with the resistance value suffered when the tarpaulin device opens and closes. That is, the greater the wind speed value when the vehicle is stationary, the greater the resistance value suffered when the tarpaulin device opens and closes.

[0112] Among them, the wind speed when the vehicle is stationary will affect the wind force suffered by the tarpaulin device during the opening or closing process. The greater the wind speed, the greater the resistance suffered by the tarpaulin device. Since the controller can obtain the wind speed value when the vehicle is stationary in real time, the controller can accurately calculate the driving force required for the tarpaulin device to open and close in combination with this wind speed value. For example, in windy weather, the controller will correspondingly increase the driving force of the driving device to ensure that the tarpaulin device can be opened and closed smoothly, and avoid the tarpaulin device from malfunctioning or being damaged due to insufficient driving force.

[0113] When the driving information of the vehicle includes the load value of the tarpaulin device, step S101 may include the following steps: The controller obtains the resistance value suffered when the tarpaulin device opens and closes according to the load value of the tarpaulin device detected by the tarpaulin load detection device. Among them, the load value of the tarpaulin device is directly proportional to the resistance value suffered when the tarpaulin device opens and closes. That is, the greater the load value of the tarpaulin device, the greater the resistance value suffered when the tarpaulin device opens and closes.

[0114] When in bad weather such as rain and snow, objects such as rain and snow act on the tarpaulin device during vehicle driving, resulting in a certain load on the tarpaulin device, thus causing the tarpaulin device to not open and close smoothly. In the embodiment of the present application, by setting a tarpaulin load detection device, the controller can obtain the load value of the tarpaulin device in real time. Then, the controller can optimize the driving force required for the opening and closing of the tarpaulin in combination with the detected load value to ensure that the tarpaulin device can open and close smoothly. For example, when the load is large, increase the driving force to ensure smooth operation and reduce damage to the tarpaulin and the device.

[0115] When the driving information of the vehicle includes the turning angle of the vehicle, step S101 may include the following steps: The controller obtains the resistance values suffered when the first transmission component and the second transmission component open and close according to the turning angle of the vehicle detected by the turning angle detection device. Among them, the turning angle of the vehicle is positively correlated with the resistance value suffered by the inner transmission component, and the turning angle of the vehicle is negatively correlated with the resistance value suffered by the outer transmission component. That is, the greater the turning angle value of the vehicle, the greater the resistance value suffered by the inner transmission component, and the smaller the resistance value suffered by the outer transmission component.

[0116] When the vehicle turns, the centripetal acceleration of the inner transmission assembly and the outer transmission assembly will change, thereby changing the resistance received by the inner transmission assembly and the outer transmission assembly, and further changing the resistance received during the opening and closing process of the tarpaulin device. Since the controller can obtain the turning angle of the vehicle in real time, the controller can accurately calculate the resistance values of the inner transmission assembly and the outer transmission assembly according to the turning angle information of the vehicle, and then correspondingly reduce the resistance of the inner transmission assembly and increase the resistance of the outer transmission assembly.

[0117] When the driving information of the vehicle includes the tilt angle of the vehicle body, this step S101 may include the following steps: The controller obtains the resistance value received during the opening and closing of the tarpaulin device according to the tilt angle of the vehicle body detected by the turning angle detection device.

[0118] When the vehicle body is on an inclined road surface, the gravitational moment received by the tarpaulin device will change, thereby changing the resistance value received during the opening and closing of the tarpaulin device. The main influencing factors include the pitch angle of the vehicle , roll angle , and the current opening degree of the tarpaulin device . Based on the dynamic characteristics of the convertible link system, it can be obtained that the degree of the tilt angle of the vehicle body has the following relationship with the resistance value received during the opening and closing of the tarpaulin device , and . Among them, the tilt of the vehicle body will change the force condition during the opening and closing of the tarpaulin device. When the vehicle is in an inclined state, the gravity distribution of the tarpaulin device will change, thereby changing the resistance received during the opening and closing process. Since the controller can obtain the tilt angle of the vehicle body in real time, the controller can accurately calculate the resistance value during the opening and closing of the tarpaulin device according to the tilt angle information of the vehicle body, and then adjust the magnitude of the driving force provided by the driving device. For example, when the vehicle goes uphill, the vehicle body tilts forward, and the tarpaulin may be hindered by greater gravity during the opening process. The controller can increase the driving force to ensure the smooth opening of the tarpaulin; when going downhill, the driving force is correspondingly reduced.

[0119] In a possible design, this step S101 may include the following steps: The controller obtains the pressure value of the hydraulic oil in the hydraulic cylinder according to the temperature value of the hydraulic oil in the hydraulic cylinder detected by the oil temperature detection device. Among them, the temperature value of the hydraulic oil in the hydraulic cylinder is positively correlated with the pressure value of the hydraulic oil in the hydraulic cylinder, that is, the greater the temperature value of the hydraulic oil in the hydraulic cylinder, the greater the pressure value of the hydraulic oil in the hydraulic cylinder.

[0120] Among them, the increase in the oil temperature in the hydraulic chamber will cause the volume of the oil to expand. In a closed hydraulic chamber, the expansion of the oil volume will lead to an increase in pressure. On the contrary, if the oil temperature in the hydraulic chamber decreases, it will cause the pressure in the hydraulic chamber to decrease. Then, the oil temperature in the hydraulic chamber will affect the pressure value of the oil in the hydraulic cylinder, that is, the oil temperature in the hydraulic chamber will affect the driving force of the driving device. Since the controller can obtain the temperature value of the oil in the hydraulic cylinder in real time, when the controller calculates the required pressure value in the hydraulic cylinder, it can more accurately control the pressure value in the hydraulic chamber according to the oil temperature, avoiding deviation of the pressure value in the hydraulic chamber due to different oil temperatures, and further improving the accuracy of the awning device control system.

[0121] S102. The controller determines the magnitude of the driving force provided by the driving device according to the resistance value suffered by the awning device when it is opened and closed.

[0122] In a possible design, this step S102 may include the following steps: The controller determines the magnitude of the driving force provided by the driving device according to the resistance value suffered by the awning device when it is opened and closed and the actual opening and closing speed of the awning device, so that the actual opening and closing speed of the awning device reaches the preset opening and closing speed.

[0123] Exemplarily, when the vehicle speed is 50 km / h, the wind resistance will generate a large acting force on the awning device at this time, resulting in the actual opening and closing speed of the awning device being less than the preset opening and closing speed. Since the controller can obtain the resistance value suffered by the awning device when it is opened and closed and the actual opening and closing speed of the awning device in real time, then, the controller increases the driving force of the driving device according to the resistance value suffered by the awning device when it is opened and closed and the actual opening and closing speed of the awning device, so that the actual opening and closing speed of the awning device reaches the preset opening and closing speed, further keeping the awning in a taut state and avoiding fluttering or deformation due to wind resistance. Since the driving force is adjusted in real time according to the resistance value suffered by the awning device when it is opened and closed and the actual opening and closing speed of the awning device, the opening and closing process of the awning can still be smooth at high speed, without violent shaking or being pulled by the wind.

[0124] In a possible design, this step S102 may include the following steps: The controller determines the required pressure value in the hydraulic cylinder according to the resistance value suffered by the awning device when it is opened and closed. The resistance value suffered by the awning device when it is opened and closed has a positive correlation with the required pressure value in the hydraulic cylinder, that is, the greater the resistance value suffered by the awning device when it is opened and closed, the greater the required pressure value in the hydraulic cylinder.

[0125] When the vehicle is traveling at different speeds, the resistance such as wind resistance during the opening and closing of the tarpaulin device will be different, and thus the required pressure in the hydraulic cylinder will also change. Since the controller can obtain the resistance value during the opening and closing of the tarpaulin device in real time, the controller can calculate the required pressure value in the hydraulic cylinder more accurately based on this information, and then adjust the driving force provided by the driving device accordingly. For example, when the vehicle is traveling at a high speed, the wind resistance is large, the resistance value during the opening and closing of the tarpaulin device increases, the required pressure value in the hydraulic cylinder increases, and the controller will increase the driving force accordingly to ensure that the tarpaulin device can be opened and closed smoothly; when the vehicle is traveling at a low speed, the driving force is appropriately reduced to avoid damage to the tarpaulin device and related components caused by excessive driving force.

[0126] In a possible design, this step S102 may include the following steps: The controller determines the required pressure value in the hydraulic cylinder according to the resistance value during the opening and closing of the tarpaulin device, the actual opening and closing speed of the tarpaulin device, and the temperature value of the hydraulic oil in the hydraulic cylinder.

[0127] Based on the calibration of the control system of the tarpaulin device, different resistance values during the opening and closing of the tarpaulin device can be obtained The required pressure value in the lower hydraulic cylinder and the temperature value of the hydraulic oil in the hydraulic cylinder on the required pressure value in the hydraulic cylinder of the correction coefficient. By modeling the dynamic system of the control system of the tarpaulin device, the actual opening and closing speed of the tarpaulin device can be obtained as well as the relationship between the driving speed value of the vehicle, the acceleration value of the vehicle, the wind speed value when the vehicle is stationary, the load value of the tarpaulin device, the turning angle of the vehicle, and the inclination angle of the vehicle body on the resistance value during the opening and closing of the tarpaulin device. Based on the above basic data, an algorithm for solving the relationship between the actual opening and closing speed of the tarpaulin device, the driving speed value of the vehicle, the acceleration value of the vehicle, the wind speed value when the vehicle is stationary, the load value of the tarpaulin device, the turning angle of the vehicle, the inclination angle of the vehicle body, etc. and the required pressure value in the hydraulic cylinder is established , and at the same time, a temperature correction coefficient is introduced , and finally the required pressure value in the hydraulic cylinder is obtained in real time, and .

[0128] In this way, when controlling the opening and closing of the tarpaulin device, the controller can comprehensively consider three aspects: the resistance value during the opening and closing of the tarpaulin device, the actual opening and closing speed of the tarpaulin device, and the temperature value of the hydraulic oil in the hydraulic cylinder, and determine the required pressure value in the hydraulic cylinder.

[0129] S103. The controller controls the opening and closing state of the control valve according to the required pressure value in the hydraulic cylinder, so that the pressure value in the hydraulic cylinder reaches the required pressure value. Among them, the required pressure value in the hydraulic cylinder is positively correlated with the opening and closing state of the control valve, that is, the greater the required pressure value in the hydraulic cylinder, the greater the opening of the control valve.

[0130] Exemplarily, when the vehicle is traveling at a medium speed (for example, the vehicle speed is greater than 30 km / h and less than 50 km / h), at this time, the wind resistance will generate a large acting force on the tarpaulin device, resulting in the pressure value in the hydraulic cylinder being 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, then, based on the required pressure value in the hydraulic cylinder, the controller increases the opening degree of the control valve, so that the pressure value in the hydraulic cylinder reaches the required pressure value, so that the opening and closing process of the tarpaulin can still be smooth at high speed, and there will be no violent shaking or being pulled by the wind.

[0131] S201. The fault diagnosis module determines the fault mode according to the pressure value in the hydraulic cylinder detected by the pressure sensor and the opening and closing state of the control valve. The fault mode may include: potential fault mode and complete fault mode, and both the potential fault mode and the complete fault mode may include: too high pressure, too low pressure, pressure fluctuation, control valve failure, etc.

[0132] In this way, when controlling the opening and closing of the tarpaulin device, the fault diagnosis module determines the fault mode according to the pressure value in the hydraulic cylinder detected by the pressure sensor and the opening and closing state of the control valve.

[0133] In a possible design, this step S201 may include the following steps: The fault diagnosis module determines the pressure threshold value in the hydraulic cylinder according to the opening and closing state of the control valve; the opening degree of the control valve corresponds one-to-one to the pressure threshold value in the hydraulic cylinder.

[0134] Exemplarily, the pressure threshold value when the control valve is in the fully open state is the first pressure threshold value, and the pressure threshold value when the control valve is in the half-open state is the second pressure threshold value, and the first pressure threshold value is greater than the second pressure threshold value. In this way, the fault diagnosis module can determine the pressure threshold value in the hydraulic cylinder according to the opening and closing state of the control valve.

[0135] In a possible design, this step S201 may include the following steps: Determine the fault mode according to the pressure value in the hydraulic cylinder and the pressure threshold value.

[0136] In a possible design, this step S201 may include the following steps: If the difference between the pressure threshold value and the pressure value in the hydraulic cylinder is greater than or equal to the first threshold value, determine that the fault mode is a complete fault mode. The complete fault mode may be pump damage, complete paralysis of the control system, etc.

[0137] Among them, the complete failure mode includes the complete pressure overload failure mode and the complete low-pressure failure mode; if the difference between the pressure threshold value and the pressure value in the hydraulic cylinder is greater than or equal to the first threshold value, and the pressure threshold value is greater than or equal to the pressure value in the hydraulic cylinder, it is determined that the failure mode is the complete low-pressure failure mode. If the difference between the pressure threshold value and the pressure value in the hydraulic cylinder is greater than or equal to the first threshold value, and the pressure threshold value is less than the pressure value in the hydraulic cylinder, it is determined that the failure mode is the complete pressure overload failure mode.

[0138] Exemplarily, when the opening degree of the control valve is in the fully open state, the pressure threshold value in the fully open state of the control valve is the first pressure threshold value. If the difference between the first pressure threshold value and the pressure value in the hydraulic cylinder is greater than the first threshold value, and the first pressure threshold value is greater than the pressure value in the hydraulic cylinder, the fault diagnosis module determines that the failure mode is the complete low-pressure failure mode accordingly; if the difference between the first pressure threshold value and the pressure value in the hydraulic cylinder is greater than the first threshold value, and the first pressure threshold value is less than the pressure value in the hydraulic cylinder, the fault diagnosis module determines that the failure mode is the complete pressure overload failure mode accordingly.

[0139] Exemplarily, when the opening degree of the control valve is in the half-open state, the pressure threshold value in the half-open state of the control valve is the second pressure threshold value. If the difference between the second pressure threshold value and the pressure value in the hydraulic cylinder is greater than the first threshold value, and the second pressure threshold value is greater than the pressure value in the hydraulic cylinder, the fault diagnosis module determines that the failure mode is the complete low-pressure failure mode accordingly; if the difference between the second pressure threshold value and the pressure value in the hydraulic cylinder is greater than the first threshold value, and the second pressure threshold value is less than the pressure value in the hydraulic cylinder, the fault diagnosis module determines that the failure mode is the complete pressure overload failure mode accordingly.

[0140] In a possible design, this step S201 may include the following steps: if the difference between the pressure threshold value and the pressure value in the hydraulic cylinder is less than the first threshold value, the fault diagnosis module determines that the failure mode is the potential failure mode. This potential failure mode may include pipeline breakage, pipeline blockage, etc. The potential failure mode includes the potential pressure overload failure mode and the potential low-pressure failure mode; if the difference between the pressure threshold value and the pressure value in the hydraulic cylinder is less than the first threshold value, and the pressure threshold value is greater than or equal to the pressure value in the hydraulic cylinder, it is determined that the failure mode is the potential low-pressure failure mode; if the difference between the pressure threshold value and the pressure value in the hydraulic cylinder is less than the first threshold value, and the pressure threshold value is less than the pressure value in the hydraulic cylinder, it is determined that the failure mode is the potential pressure overload failure mode.

[0141] Exemplarily, when the opening degree of the control valve is in the fully open state, the pressure threshold value in the fully open state of the control valve is the first pressure threshold value. If the difference between the first pressure threshold value and the pressure value in the hydraulic cylinder is less than the first threshold value, and the first pressure threshold value is greater than the pressure value in the hydraulic cylinder, the fault diagnosis module determines the fault mode as the potential fault mode of too low pressure accordingly; if the difference between the first pressure threshold value and the pressure value in the hydraulic cylinder is less than the first threshold value, and the first pressure threshold value is less than the pressure value in the hydraulic cylinder, the fault diagnosis module determines the fault mode as the potential fault mode of pressure overload accordingly.

[0142] Exemplarily, when the opening degree of the control valve is in the half-open state, the pressure threshold value in the half-open state of the control valve is the second pressure threshold value. If the difference between the second pressure threshold value and the pressure value in the hydraulic cylinder is less than the first threshold value, and the second pressure threshold value is greater than the pressure value in the hydraulic cylinder, the fault diagnosis module determines the fault mode as the potential fault mode of too low pressure accordingly; if the difference between the second pressure threshold value and the pressure value in the hydraulic cylinder is less than the first threshold value, and the second pressure threshold value is less than the pressure value in the hydraulic cylinder, the fault diagnosis module determines the fault mode as the potential fault mode of pressure overload accordingly.

[0143] In a possible design, the 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 the memory.

[0144] In this way, after the fault diagnosis module determines the fault mode according to the pressure value and the pressure threshold value in the hydraulic cylinder, the controller can receive the fault mode information sent by the fault diagnosis module and store the fault mode information in the memory. When the fault diagnosis module detects a potential fault mode, the tarpaulin device control system sends the fault mode information in the memory to the vehicle information entertainment system (such as the dashboard display screen or the on-board computer) to display the real-time working state of the hydraulic cylinder and provide user information feedback. When the fault diagnosis module detects a complete fault mode, the tarpaulin device control system will generate specific fault codes for the fault mode information in the memory and store them in the memory. The maintenance technician can quickly locate the problem through these fault codes and perform repairs.

[0145] S202. When the controller detects that the fault diagnosis module determines a potential fault mode, the controller gives an alarm; when the controller detects that the fault diagnosis module determines a complete fault mode, the controller controls the control valve to close.

[0146] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present application, and all of them should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A tarpaulin device control system, characterized in that: include: A tarpaulin device (1) adapted to be slidably arranged 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 driving information of a vehicle; 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: According to the vehicle driving information detected by the detection device (3), the resistance value encountered by the tarpaulin device (1) when opening or closing is obtained; 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), electrically connected to the controller (4), and adapted to detect the actual opening and closing speed of the tarpaulin device (1); Determining the magnitude of the driving force provided by the driving device (2) according to the resistance value encountered when the tarpaulin device (1) is opened or closed 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 or 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 driving speed value of the vehicle detected by the speed sensor, and the driving speed value of the vehicle is positively correlated with the resistance value encountered by the tarpaulin device (1) when opening or 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, which is electrically connected to the controller (4) and is 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 or 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, and 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 (3) electrically connected to the controller (4), wherein 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 or 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 wind speed value detected by the wind speed detection device (3) 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 (1) when opening or closing.

9. The tarpaulin device control system according to claim 1 or 2, characterized in that: The detection device (3) further comprises: a tarpaulin load detection device (3), which is electrically connected to the controller (4) and is suitable for detecting the load value of the tarpaulin device (1), and the vehicle driving information at least comprises 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 or 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 (3), the resistance value encountered by the tarpaulin device (1) when opening or closing is obtained, and the load value of the tarpaulin device (1) and the resistance value encountered by the tarpaulin device (1) when opening or 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 (3), which is electrically connected to the controller (4) and is suitable for detecting 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 or 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 (3), 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) comprises: a hydraulic cylinder (21) which is in transmission connection with the first transmission assembly (6) and the second transmission assembly (7); the tarpaulin device control system further comprises: a pressure sensor (8) which is electrically connected with the controller (4) and is suitable for detecting the pressure value in the hydraulic cylinder (21); the vehicle driving information at least comprises the pressure value in the hydraulic cylinder (21); 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 it is opened or closed comprises: determining the required pressure value in the hydraulic cylinder (21) based on the resistance value encountered by the tarpaulin device (1) when it is opened or closed, wherein the resistance value encountered by the tarpaulin device (1) when it is opened or closed 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 chamber is arranged in the cylinder body, and an oil inlet and an oil return port communicating with the hydraulic chamber are arranged 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, and adapted to transport the oil in the oil storage device to 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) according to the resistance value encountered when the tarpaulin device (1) is opened or closed, the controller (4) is further configured to: The opening and closing state of the control valve is controlled according to the required pressure value in the hydraulic cylinder (21) 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) according to 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 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.

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 also 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 according to the pressure value in the hydraulic cylinder (21) detected by the pressure sensor (8) and the opening and closing state of the control valve comprises: 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 fault 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 comprises: 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 modes include: a pressure overload complete failure mode and a pressure too low 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 fault mode is a complete fault mode comprises: 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 comprises: 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 potential fault mode of pressure overload.

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 fault information is stored in the memory.

26. A vehicle, characterized in that: A tarpaulin device control system comprising any one of claims 1-25.

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