Tarp control system and vehicle

Abstract

This utility model provides a tarpaulin control system and a vehicle. The tarpaulin control system includes: a motor drive module electrically connected to a tarpaulin drive motor, the motor drive module having multiple output states, including at least a first output state outputting a first preset current and a second output state outputting a second preset current, wherein the current direction of the first preset current is opposite to that of the second preset current; a power distribution module electrically connected to the motor drive module, the power distribution module being used to control the output state switching of the motor drive module; and a control module electrically connected to the power distribution module, the power distribution module controlling the output state of the motor drive module based on the control commands from the control module. This solution can realize the automatic unfolding and retraction of the tarpaulin, solving the technical problem of low work efficiency caused by the need for manual control of tarpaulins in related technologies.

Description

Technical Field

[0001] This utility model relates to the field of vehicle control technology, and more specifically, to a tarpaulin control system and a vehicle. Background Technology

[0002] In the traditional mining truck transportation sector, tarpaulin systems are primarily used to prevent dust or material loss during transport due to wind, bumps, and other factors, especially for materials with high dust content such as ore and coal. Currently, the control of mining truck tarpaulins is mostly based on manual operation, using remote controls or manual switches to unfold and retract the tarpaulin. This control method has a low degree of automation, requiring operators to be physically present on-site to manually operate the remote control or switches, thus failing to achieve remote or automatic control, reducing work efficiency, and increasing the workload of operators.

[0003] There is currently no effective solution to the aforementioned technical problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a tarpaulin control system and vehicle to solve the problem of low work efficiency caused by the need for manual control of tarpaulins in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a tarpaulin control system is provided. The tarpaulin control system includes: a motor drive module electrically connected to a tarpaulin drive motor, the motor drive module having multiple output states, including at least a first output state outputting a first preset current and a second output state outputting a second preset current, wherein the current direction of the first preset current is opposite to the current direction of the second preset current; a power distribution module electrically connected to the motor drive module, the power distribution module being used to control the motor drive module to switch output states; and a control module electrically connected to the power distribution module, the power distribution module controlling the output states of the motor drive module based on control commands from the control module.

[0006] Furthermore, the tarpaulin control system also includes: a tarpaulin status detection module, which is installed on the vehicle and is used to detect the current status of the tarpaulin; wherein, the tarpaulin status detection module is electrically connected to the control module.

[0007] Furthermore, the tarpaulin status detection module includes multiple sensor switches, which generate sensor signals when the tarpaulin support is detected. The tarpaulin support is mounted on the tarpaulin strut and moves synchronously with the tarpaulin.

[0008] Furthermore, the plurality of sensor detection switches include: a cover detection switch, which is located at the rear of the vehicle cargo compartment; and a retraction detection switch, which is located at the front of the vehicle cargo compartment.

[0009] Furthermore, the control module is electrically connected to the autonomous driving domain controller, and the control module generates control commands based on the control signals of the autonomous driving domain controller; and / or, the control module is electrically connected to the remote control terminal, and the control module generates control commands based on the remote control signals of the remote control terminal.

[0010] Furthermore, the output of the motor drive module is equipped with an overcurrent protection unit.

[0011] Furthermore, the motor drive module has an input terminal, a ground terminal, a first output terminal, and a second output terminal. The tarpaulin drive motor is connected in series between the first output terminal and the second output terminal. When the motor drive module is in the first output state, the first output terminal is connected to the input terminal, and the second output terminal is connected to the ground terminal to provide a first preset current to the tarpaulin drive motor. When the motor drive module is in the second output state, the first output terminal is connected to the ground terminal, and the second output terminal is connected to the input terminal to provide a second preset current to the tarpaulin drive motor.

[0012] Furthermore, the input terminal includes a first input terminal and a second input terminal, and the ground terminal includes a first ground terminal and a second ground terminal. The first output terminal can be selectively connected to either the first input terminal or the first ground terminal, and the second output terminal can be selectively connected to either the second input terminal or the second ground terminal.

[0013] According to another aspect of the present invention, a vehicle is provided, the vehicle having a tarpaulin control system, the tarpaulin control system being the aforementioned tarpaulin control system.

[0014] Furthermore, the vehicles are driverless.

[0015] By applying the technical solution of this utility model, the motor drive module can provide current in the opposite direction to the tarpaulin drive motor, thereby enabling the tarpaulin drive motor to rotate forward and reverse, realizing the reciprocating motion of the tarpaulin, and thus completing the switching between the unfolded and retracted states of the tarpaulin. The power distribution module controls the motor drive module to switch the output state according to the instructions of the control module, which can realize intelligent control of the tarpaulin drive motor, realize the automatic unfolding and retracting of the tarpaulin, and solve the technical problem of low work efficiency caused by the need for manual control of tarpaulin in related technologies. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of a first embodiment of the tarpaulin control system according to the present invention is shown;

[0018] Figure 2 A schematic diagram of the structure of a second embodiment of the tarpaulin control system according to the present invention is shown;

[0019] Figure 3 A flowchart illustrating an embodiment of the tarpaulin control method according to the present invention is shown.

[0020] The above figures include the following reference numerals:

[0021] 10. Motor drive module; 11. Cover relay unit; 12. Retract relay unit;

[0022] 20. Tarpaulin drive motor;

[0023] 30. Power distribution module;

[0024] 40. Control module;

[0025] 51. Coverage detection switch; 52. Retraction detection switch;

[0026] 60. Automated driving domain controller;

[0027] 70. Remote control terminal;

[0028] 81. Remote control receiver; 82. Storage battery; 83. Receiving antenna;

[0029] 91. Induction bracket; 92. Induction switch; 93. Steel wire rope; 94. Trolley; 95. Slide rail; 96. Cargo box side panel. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0033] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0034] Combination Figures 1 to 2 As shown, according to a specific embodiment of this application, a tarpaulin control system is provided.

[0035] Specifically, the tarpaulin control system includes a motor drive module 10, a power distribution module 30, and a control module 40. The motor drive module 10 is electrically connected to the tarpaulin drive motor 20. The motor drive module 10 has multiple output states, including at least a first output state that outputs a first preset current and a second output state that outputs a second preset current, wherein the current direction of the first preset current is set opposite to the current direction of the second preset current. The power distribution module 30 is electrically connected to the motor drive module 10 and is used to control the motor drive module 10 to switch output states. The control module 40 is electrically connected to the power distribution module 30 and controls the output state of the motor drive module 10 based on the control commands of the control module 40.

[0036] By applying the technical solution of this embodiment, the motor drive module 10 can provide current in the opposite direction to the tarpaulin drive motor 20, thereby causing the tarpaulin drive motor 20 to rotate forward and reverse, realizing the reciprocating motion of the tarpaulin, and thus completing the switching between the unfolded state and the retracted state of the tarpaulin. The power distribution module 30 controls the motor drive module 10 to switch the output state according to the instructions of the control module 40, which can realize intelligent control of the tarpaulin drive motor 20, realize the automatic unfolding and retracting of the tarpaulin, and solve the technical problem of low work efficiency caused by the need for manual control of tarpaulin control in related technologies.

[0037] It should be understood that the control module in this application, which may also be called a controller in some embodiments, is a functional module with information interaction and logical judgment capabilities, often used for system decision-making. By setting up a control module, the tarpaulin control system can have automatic decision-making and automatic control functions. When the control module 40 determines that tarpaulin control is needed, it can automatically generate corresponding control commands to control the operation of the power distribution module 30, thereby adjusting the output state of the control motor drive module 10. That is to say, the power distribution module 30 is actually an actuator electrically connected to the control module 40, used to execute the control commands of the control module 40. Typically, the control module 40 is the central control unit of the vehicle.

[0038] Electrical connections can be either wired connections such as CAN (Controller Area Network) communication connections or hardwired connections, or wireless connections such as Wi-Fi (Wireless Fidelity) communication connections or Bluetooth connections.

[0039] Furthermore, the tarpaulin control system also includes a tarpaulin status detection module, which is installed on the vehicle and is used to detect the current status of the tarpaulin; wherein, the tarpaulin status detection module is electrically connected to the control module 40.

[0040] By incorporating a tarpaulin status detection module, the closed-loop control capability of the tarpaulin control system can be enhanced, ensuring the accuracy of tarpaulin deployment and retraction. By monitoring the tarpaulin's current status in real time, the system can promptly adjust the motor's operating state, preventing damage caused by excessive deployment or retraction of the tarpaulin, improving system safety, and extending the service life of the tarpaulin and its drive motor 20. For example, when the tarpaulin is fully deployed, the control module immediately stops the motor to prevent excessive stretching of the tarpaulin.

[0041] Specifically, the tarpaulin status detection module includes multiple sensor switches, which generate sensor signals when the tarpaulin support is detected. The tarpaulin support is mounted on the tarpaulin strut and moves synchronously with the tarpaulin.

[0042] The inclusion of a sensor switch enables the system to monitor the movement of the tarpaulin in real time. This sensor switch can be a photoelectric sensor, a magnetic sensor, or similar device. When the sensor detects the tarpaulin support, it generates a detection signal, notifying the control module 40. This allows the control module 40 to adjust the output state of the motor drive module 10 in a timely manner, ensuring the safe and stable operation of the tarpaulin in unattended environments.

[0043] Furthermore, the plurality of sensor detection switches include a cover detection switch 51 and a retraction detection switch 52, wherein the cover detection switch 51 is located at the rear of the vehicle cargo compartment; and the retraction detection switch 52 is located at the front of the vehicle cargo compartment.

[0044] The arrangement of the cover detection switch 51 and the retraction detection switch 52 further refines the detection of the tarpaulin's status. The cover detection switch 51 generates a signal when the tarpaulin is fully extended, ensuring that the tarpaulin covers the rear of the cargo box completely; the retraction detection switch 52 generates a signal when the tarpaulin is retracted, ensuring that the tarpaulin is completely retracted to the front of the cargo box. This design avoids damage to the tarpaulin during movement, ensuring the safety and reliability of the vehicle in complex operating environments.

[0045] For example, when the tarpaulin begins to retract, the control module 40 switches the motor drive module 10 to the first output state, and the tarpaulin drive motor 20 rotates forward until the tarpaulin is fully retracted. At this time, the retraction detection switch 52 detects the tarpaulin support rod and generates a signal, and the control module 40 controls the motor drive module 10 to stop outputting.

[0046] Optionally, the control module 40 is electrically connected to the autonomous driving domain controller 60, and the control module 40 generates control commands based on the control signals of the autonomous driving domain controller 60. The autonomous driving domain controller 60 is typically used to process and coordinate various sensor data and control decisions in autonomous vehicles, such as making driving decisions and controlling the vehicle's driving state. By generating control commands based on the signals from the autonomous driving domain controller 60, the control module 40 can automatically unfold and retract the tarpaulin according to the vehicle's driving state, without manual intervention, thus improving operational efficiency.

[0047] Optionally, the control module 40 is electrically connected to the remote control terminal 70, and the control module 40 generates control commands based on the remote control signals from the remote control terminal 70. The access of the remote control terminal 70 enables manual intervention in emergency situations, enhances the flexibility and safety of the system, and realizes remote control of the tarpaulin control system.

[0048] Preferably, the output terminal of the motor drive module 10 is provided with an overcurrent protection unit.

[0049] The overcurrent protection unit effectively prevents motor overload, protecting both the motor and the entire tarpaulin control system. The overcurrent protection unit can be a fuse, circuit breaker, or current sensor, which automatically cuts off the current when it detects that the motor's drive current exceeds a preset threshold, preventing damage to the motor due to overload. This design not only extends the motor's lifespan but also improves system safety, avoiding system failures caused by motor overload.

[0050] Specifically, the motor drive module 10 has an input terminal, a ground terminal, a first output terminal, and a second output terminal. The tarpaulin drive motor 20 is connected in series between the first and second output terminals. When the motor drive module 10 is in the first output state, the first output terminal is connected to the input terminal, and the second output terminal is connected to the ground terminal to provide a first preset current to the tarpaulin drive motor 20. When the motor drive module 10 is in the second output state, the first output terminal is connected to the ground terminal, and the second output terminal is connected to the input terminal to provide a second preset current to the tarpaulin drive motor 20. In this embodiment, the motor drive module 10 can change the direction of the current through the tarpaulin drive motor 20 by controlling the connection state of the first and second output terminals with the input terminal and the ground terminal, thereby controlling the forward and reverse rotation of the motor.

[0051] For example, when the system needs to unfold the tarpaulin, the control module 40 sends a command to put the motor drive module 10 into the first output state, outputting positive current to drive the motor to rotate forward; conversely, when the tarpaulin needs to be retracted, the control module 40 sends a command to put the motor drive module 10 into the second output state, outputting reverse current to drive the motor to rotate in reverse.

[0052] Furthermore, the input terminals include a first input terminal and a second input terminal, and the grounding terminals include a first grounding terminal and a second grounding terminal. The first output terminal can be selectively connected to either the first input terminal or the first grounding terminal, and the second output terminal can be selectively connected to either the second input terminal or the second grounding terminal. This configuration simplifies external control; the first and second input terminals can be labeled as the forward control terminal and the reverse control terminal, respectively, for easy differentiation and improved control efficiency.

[0053] In one exemplary embodiment of this application, the motor drive module 10 includes a cover relay unit 11 and a retractable relay unit 12. The cover relay unit 11 has a first input terminal, a first ground terminal and a first output terminal; the retractable relay unit 12 has a second input terminal, a second ground terminal and a second output terminal; wherein the cover relay unit 11 and the retractable relay unit 12 are arranged independently of each other.

[0054] like Figure 1As shown, the components of the cover relay unit 11 and the retractable relay unit 12 can be identical, both having interfaces 87a, 87, 86, 85, and 90. Interfaces 87a and 85 are grounded. Interface 87 forms the input terminal of the motor drive module 10, and interface 90 forms the output terminal of the motor drive module 10. Interface 86 is connected to the power distribution module 30 and is connected in series with interface 85 by a resistor. Interfaces 87a, 87, and 90 constitute a switch with two connection states: when energized, interface 87 and interface 90 are connected; when de-energized, interface 87a and interface 90 are connected. The power distribution module 30 can adjust the energization of the two interfaces 87 as needed, thereby controlling the direction of the current output to the tarpaulin drive motor 20. For example, when interface 87 of the cover relay unit 11 is energized, the tarpaulin drive motor 20 drives the tarpaulin to move and unfold it; when interface 87 of the retractable relay unit 12 is energized, the tarpaulin drive motor 20 drives the tarpaulin to move in the opposite direction and retract it.

[0055] It should be noted that in some embodiments, the covering relay unit 11 and the retracting relay unit 12 can also be integrated into a single design.

[0056] According to another specific embodiment of this application, a tarpaulin control method is provided, the method being based on the tarpaulin control system described in the above embodiments, such as... Figure 3 As shown, the method includes the following steps:

[0057] Step S200: Obtain vehicle information of the target vehicle;

[0058] Specifically, in step S200, the vehicle information may include the vehicle's location, speed, loading status, etc., and may also include the current status information of the tarpaulin, such as whether it has been unfolded or retracted.

[0059] Step S210: Based on vehicle information, determine the target tarpaulin status of the target vehicle, wherein the target tarpaulin status includes an unfolded state and a retracted state.

[0060] Step S220: Based on the target tarpaulin state, determine the target operating mode of the tarpaulin drive motor;

[0061] Step S230: Based on the target operating mode, generate a motor drive command. The motor drive command is used to control the tarpaulin drive motor to operate in the target operating mode, so as to drive the tarpaulin to move along the target direction until the tarpaulin switches to the target tarpaulin state.

[0062] By applying the technical solution of this embodiment, based on vehicle information such as vehicle location and business nodes, the system can automatically determine whether the tarpaulin should be in an unfolded or retracted state, and generate corresponding motor drive commands accordingly to control the operating mode of the tarpaulin drive motor, thus solving the technical problem of intelligent control of the tarpaulin status in automated operation processes.

[0063] Furthermore, the method also includes:

[0064] Step S300: Obtain tarpaulin status detection information;

[0065] Specifically, in step S300, the tarpaulin status detection information can be a signal generated by the inductive switch. During the movement of the tarpaulin, the inductive switch continuously monitors the position status of the tarpaulin. When the tarpaulin is close to being fully unfolded or fully retracted, the inductive switch sends a high-level signal. This signal is the tarpaulin status detection information, which is transmitted to the controller in the form of a high-level signal.

[0066] Step S310: Determine the current state of the tarpaulin based on the tarpaulin state detection information;

[0067] Step S320: In response to the current state being the target tarpaulin state, control the tarpaulin drive motor to stop moving.

[0068] Through steps S300-S320, by acquiring tarpaulin status detection information, the unfolding and retracting status of the tarpaulin can be monitored in real time. The system can adjust the motor operation in a timely manner to prevent damage caused by excessive movement of the tarpaulin, thus ensuring the accuracy and safety of tarpaulin control.

[0069] Preferably, in step S220, the target operating mode of the tarpaulin drive motor is determined based on the target tarpaulin state, including:

[0070] Step S221: If the target tarpaulin is determined to be in the unfolded state, the target operating mode of the tarpaulin drive motor is determined to be the forward rotation mode.

[0071] Step S222: If the target tarpaulin is determined to be in a retracted state, the target operating mode of the tarpaulin drive motor is determined to be a reverse mode.

[0072] Through steps S221 and S222, the system automatically selects the forward or reverse rotation mode of the motor according to the target tarpaulin's state, ensuring that the tarpaulin can be accurately unfolded or retracted. When the target tarpaulin is in the unfolded state, the system automatically selects the forward rotation mode of the motor, outputs forward current, drives the motor to rotate forward, and unfolds the tarpaulin; conversely, when the target tarpaulin is in the retracted state, the system automatically selects the reverse rotation mode of the motor, outputs reverse current, drives the motor to rotate in reverse, and retracts the tarpaulin.

[0073] Furthermore, the method also includes:

[0074] Step S400: Obtain the operating status information of the tarpaulin control system;

[0075] Specifically, in step S400, the operating condition information refers to the status and performance data of the tarpaulin control system during operation, including but not limited to current, voltage, temperature, motor running time, etc.

[0076] Step S410: Based on the operating condition information, determine whether the tarpaulin control system has malfunctioned;

[0077] Step S420: In response to a fault in the tarpaulin control system, based on the fault type of the tarpaulin control system, the tarpaulin control system is controlled to execute a fault handling procedure, which is set in accordance with the fault type.

[0078] Through steps S400-S420, by monitoring the system's operating conditions in real time, such as motor current and the status of induction detection switches, the system can promptly detect and handle faults, avoiding work interruptions caused by system failures and improving system stability and reliability. For example, when the system detects an abnormal motor drive current, it will automatically determine it as a motor overload fault, immediately execute the overload protection procedure, cut off the current, and prevent motor damage.

[0079] Specifically, the fault types and fault handling procedures are set according to the specific configuration of the tarpaulin control system. For example, when the fault type is motor overload, the fault handling procedure may be to immediately cut off the motor power supply to prevent motor damage, and send a fault notification to the controller via the CAN bus. The controller records the fault type and generates a fault code, and simultaneously sends an alarm to the vehicle's maintenance system, prompting maintenance personnel to check the tarpaulin motor and related circuits. Different fault types may correspond to different fault handling procedures, or they may contain some of the same procedures, such as automatically shutting down the system, issuing an alarm, recording fault information, and attempting fault recovery. The specific procedure will be customized according to the different types of faults.

[0080] Further, in step S210, based on the vehicle information, the target tarpaulin status of the target vehicle is determined, including the following steps:

[0081] Step S211: Based on the vehicle information, determine the current location and current business node of the target vehicle;

[0082] Specifically, in step S211, the vehicle information can be data from vehicle sensors and positioning systems to determine the vehicle's current location and current operational node, or it can be environmental information sent from task node instructions from the control terminal or from devices in the surrounding environment. Vehicle operational nodes typically include transportation nodes, loading nodes, and unloading nodes. Each node can be further subdivided according to the specific work process. For example, a loading node can be divided into a loading preparation node, a loading in progress node, and a loading completion node; an unloading node can be divided into an unloading preparation node, an unloading in progress node, and an unloading completion node; and a transportation node can be divided into multiple transportation sub-nodes based on the transportation route.

[0083] Step S212: In response to the current location being the loading area and the current business node being the loading preparation node, determine the target tarpaulin status as the retracted state.

[0084] Step S213: In response to the fact that the current location is the loading area and the current business node is the loading completed node, determine that the target tarpaulin is in the unfolded state;

[0085] Step S214: In response to the fact that the current location is the unloading area and the current business node is the unloading preparation node, determine that the target tarpaulin is in the retracted state.

[0086] Step S215: In response to the current location being the unloading area and the current business node being the unloading completed node, determine the target tarpaulin status as the unfolded state.

[0087] Through steps S211-S215, the system automatically determines whether the tarpaulin should be in an unfolded or retracted state based on the vehicle's current location and the business node, thereby generating corresponding control commands. When the vehicle is in the loading area and the business node is the loading preparation node, the system automatically determines that the target tarpaulin should be in a retracted state to facilitate loading operations; when the vehicle is in the unloading area and the business node is the unloading completion node, the system automatically determines that the target tarpaulin should be in an unfolded state to protect the goods from environmental factors. This achieves automatic adjustment of the tarpaulin state at different operation nodes, ensuring the safety and efficiency of the operation.

[0088] This application also provides a preferred embodiment of a tarpaulin control system and its control method, which is mainly applied to unmanned mining trucks.

[0089] To more clearly illustrate the technical solution of this embodiment, the tarpaulin control system for the unmanned mining truck is described as follows: The unmanned mining truck is equipped with a tarpaulin for dust protection. The tarpaulin needs to be automatically adjusted. When the vehicle arrives at the loading area, the tarpaulin automatically retracts. After loading is complete, the tarpaulin automatically covers the truck. When the vehicle arrives at the unloading area, the tarpaulin automatically retracts. After unloading is complete, the tarpaulin automatically covers the truck. Currently, the tarpaulin control system is based on manual control. When a person presses the "ON" or "OFF" button on a remote control, the remote receiver directly controls a relay via a hardwired connection to cover and retract the tarpaulin. During this process, the operator mainly relies on visual observation and judgment to determine whether the tarpaulin has reached the target position, resulting in a low level of automation. Furthermore, malfunctions in the tarpaulin motor cannot be detected; and due to the lack of a control interface, this system cannot be used on unmanned vehicles.

[0090] In summary, tarpaulin control systems generally suffer from the following two problems: (1) they cannot meet automatic control requirements; and (2) they lack necessary fault diagnosis. The tarpaulin control system in this embodiment employs an intelligent design to achieve automatic covering or retraction of the tarpaulin.

[0091] Specifically, in combination Figure 1 As shown, the tarpaulin control system in this embodiment includes a control module 40, a remote controller receiver 81, a sensor detection switch, an autonomous driving domain controller 60 (hereinafter referred to as ADC), a power distribution module 30, a cover relay unit 11, a retraction relay unit 12, a battery 82, and a receiving antenna 83. The control module 40 is a VCU (Vehicle Control Unit).

[0092] The sensor detection switches are arranged at the front and rear of the cargo box, serving as "coverage detection switch 51" and "retraction detection switch 52" respectively. Since the vehicle is unmanned, a malfunction of the sensor detection switch will cause the VCU to determine that the vehicle tarpaulin cannot be properly covered or retracted, and the vehicle will be prohibited from driving. Therefore, the sensor detection switch needs to adopt an anti-smashing design. Specifically, the sensor detection switch adopts an inset design.

[0093] like Figure 2 As shown, the inductive switch 92 (i.e. the aforementioned inductive detection switch) is installed on the side panel 96 of the cargo box. The side panel 96 of the cargo box is provided with a slide rail 95 and a steel wire rope 93. The trolley 94 can move along the steel wire rope 93 to drive the tarpaulin to move. The inductive bracket 91 moves synchronously with the tarpaulin. When the inductive bracket 91 moves along the steel wire rope 93 into the detection range of the inductive switch 92, the inductive switch 92 generates a corresponding signal.

[0094] The tarpaulin control system in this embodiment can be operated manually, but due to the addition of a VCU controller, it supports automatic control, and its intelligence is greatly improved.

[0095] The manual operation process is as follows:

[0096] 1. Press the "ON" button on the remote control (i.e., the aforementioned remote control terminal 70). The remote control receiver 81 sends a 24V high level to the VCU. After the VCU detects 24V+, it sends the "tarpaulin cover" command to the "power distribution module 30".

[0097] 2. After receiving the "tarpaulin cover" command, the power distribution module 30 drives the tarpaulin cover relay (i.e. the aforementioned cover relay unit 11) to close, and the tarpaulin motor (i.e. the aforementioned tarpaulin drive motor 20) starts to work, pulling the tarpaulin to gradually cover the materials in the carriage.

[0098] 3. When the VCU detects the "coverage detection switch" signal, it sends a "stop coverage" command to the power distribution module 30;

[0099] 4. After receiving the "stop covering" signal, the power distribution module 30 disconnects the tarpaulin covering relay, and the tarpaulin stops moving;

[0100] 5. Press the "OFF" button on the remote control switch. The remote control receiver 81 sends a low level (0V) to the VCU. After the VCU detects the low level, it sends the "tarpaulin retract" command to the power distribution module 30.

[0101] 6. After receiving the "tarpaulin retract" command, the power distribution module 30 drives the tarpaulin closing relay (i.e., the aforementioned retracting relay unit 12) to close, and the tarpaulin motor starts to work, pulling the tarpaulin to gradually retract.

[0102] 7. When the VCU detects the "retract detection switch" signal, it will send "stop retracting" to the power distribution module 30;

[0103] 8. After receiving the "stop retracting" command, the power distribution module 30 disconnects the tarpaulin retraction relay, and the tarpaulin stops moving;

[0104] 9. With the addition of the power distribution module 30, its output interface has overcurrent protection. When the motor is overloaded, it can feed back to the VCU via the bus to cut off the power, thereby protecting the motor. At the same time, it reports the fault and alerts maintenance personnel so that it can be repaired and used again.

[0105] The automatic control process is as follows:

[0106] 1. After receiving the "tarpaulin cover" command from the ADC, the VCU forwards the "tarpaulin cover" command to the power distribution module 30;

[0107] 2. After receiving the "tarpaulin cover" command, the power distribution module 30 drives the tarpaulin cover relay to close, and the tarpaulin motor starts to work, pulling the tarpaulin to gradually cover the materials in the carriage;

[0108] 3. When the VCU detects the "coverage detection switch" signal, it sends a "stop coverage" command to the power distribution module 30;

[0109] 4. After receiving the "stop covering" signal, the power distribution module 30 disconnects the tarpaulin covering relay, and the tarpaulin stops moving;

[0110] 5. After receiving the "tarpaulin retract" command from the ADC, the VCU sends the "tarpaulin retract" command to the power distribution module 30;

[0111] 6. After receiving the "tarpaulin retraction" command, the power distribution module 30 drives the tarpaulin retraction relay to close, and the tarpaulin motor starts to work, pulling the tarpaulin to gradually retract;

[0112] 7. When the VCU detects the "retract detection switch" signal, it sends "stop retracting" to the power distribution module 30;

[0113] 8. After receiving the "stop retracting" command, the power distribution module 30 disconnects the tarpaulin retraction relay, and the tarpaulin stops moving;

[0114] 9. With the addition of the power distribution module 30, its output interface has overcurrent protection. When the motor is overloaded, it can feed back to the VCU via the bus to cut off the power, thereby protecting the motor. At the same time, it reports the fault and alerts maintenance personnel so that it can be repaired and used again.

[0115] The ADC sends the tarpaulin opening or closing command to the VCU via the CAN bus. The VCU controls the opening and closing of the tarpaulin via the CAN command. The bracket on the tarpaulin support rod moves with the tarpaulin. When it reaches the correct position, the bracket will be within the sensing range of the non-contact detection switch. After the detection switch detects the bracket, its internal output signal is modulated from a high level of 12V to a low level of 0V. After the VCU detects the signal change, it determines that the tarpaulin is in position and controls the motor to stop working. If the power distribution module 30 detects an abnormal increase in output current during the movement, with the current ≥25A for a short time and the detection time ≥50ms, it determines that the drive motor is stalled and the control module stops supplying power to the motor. After stopping for 1 second, the tarpaulin is controlled to move in the reverse direction for 5 seconds, and then the motor is controlled to stop working again. After 1 second, the motor is controlled to return to the forward direction and continue working. If the abnormal increase in current is detected again, the motor is controlled to stop working and a fault is reported.

[0116] According to another specific embodiment of this application, a vehicle is provided, the vehicle having a tarpaulin control system, the tarpaulin control system being the tarpaulin control system in the above embodiment.

[0117] Preferably, the vehicle is an unmanned vehicle.

[0118] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0119] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0120] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0121] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tarpaulin control system, characterized in that, The tarpaulin control system includes: The motor drive module (10) is electrically connected to the tarpaulin drive motor (20). The motor drive module (10) has multiple output states, including at least a first output state that outputs a first preset current and a second output state that outputs a second preset current, wherein the current direction of the first preset current is set opposite to the current direction of the second preset current. A power distribution module (30) is electrically connected to the motor drive module (10), and the power distribution module (30) is used to control the motor drive module (10) to switch the output state. The control module (40) is electrically connected to the power distribution module (30), and the power distribution module (30) controls the output state of the motor drive module (10) based on the control commands of the control module (40).

2. The tarpaulin control system according to claim 1, characterized in that, The tarpaulin control system also includes: A tarpaulin status detection module is installed on the vehicle and is used to detect the current status of the tarpaulin. The tarpaulin status detection module is electrically connected to the control module (40).

3. The tarpaulin control system according to claim 2, characterized in that, The tarpaulin status detection module includes multiple sensor switches, which generate sensor signals when a tarpaulin support is detected. The tarpaulin support is mounted on a tarpaulin support rod and moves synchronously with the tarpaulin.

4. The tarpaulin control system according to claim 3, characterized in that, The plurality of said inductive detection switches include: Coverage detection switch (51), the coverage detection switch (51) is located at the rear of the vehicle cargo compartment; A retraction detection switch (52) is provided at the head of the vehicle cargo compartment.

5. The tarpaulin control system according to claim 1, characterized in that, The control module (40) is electrically connected to the autonomous driving domain controller (60), and the control module (40) generates the control command based on the control signal of the autonomous driving domain controller (60). And / or, the control module (40) is electrically connected to the remote control terminal (70), and the control module (40) generates the control command based on the remote control signal of the remote control terminal (70).

6. The tarpaulin control system according to claim 1, characterized in that, The output terminal of the motor drive module (10) is equipped with an overcurrent protection unit.

7. The tarpaulin control system according to claim 1, characterized in that, The motor drive module (10) has an input terminal, a ground terminal, a first output terminal, and a second output terminal. The tarpaulin drive motor (20) is connected in series between the first output terminal and the second output terminal. When the motor drive module (10) is in the first output state, the first output terminal is connected to the input terminal, and the second output terminal is connected to the ground terminal to provide the first preset current to the tarpaulin drive motor (20). When the motor drive module (10) is in the second output state, the first output terminal is connected to the ground terminal, and the second output terminal is connected to the input terminal to provide the second preset current to the tarpaulin drive motor (20).

8. The tarpaulin control system according to claim 7, characterized in that, The input terminal includes a first input terminal and a second input terminal, and the ground terminal includes a first ground terminal and a second ground terminal. The first output terminal can be selectively connected to either the first input terminal or the first ground terminal, and the second output terminal can be selectively connected to either the second input terminal or the second ground terminal.

9. A vehicle, characterized in that, The vehicle has a tarpaulin control system, which is the tarpaulin control system according to any one of claims 1-8.

10. The vehicle according to claim 9, characterized in that, The vehicle in question is an unmanned vehicle.

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