A dump truck roll-over prevention control method, electronic device and storage medium

Abstract

The application discloses a dump truck rollover prevention control method, an electronic device and a storage medium, relates to the technical field of new energy dump trucks, and the dump truck rollover prevention control method comprises the following steps: acquiring a dump truck inclination angle formed by a whole vehicle and the ground and a steering wheel rotation angle in real time; judging the size relationship between the dump truck inclination angle and a first preset inclination angle and a second preset inclination angle; judging the size relationship between the steering wheel rotation angle and a preset rotation angle; and controlling the vehicle state according to the size relationship between the dump truck inclination angle and the first preset inclination angle and the second preset inclination angle and the size relationship between the steering wheel rotation angle and the preset rotation angle. The user can discover dangerous conditions of the dump truck in a driving process and a lifting process in time, and the stability and safety of the whole vehicle can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of new energy dump truck technology, specifically to a method for preventing dump trucks from tipping over. Background Technology

[0002] Dump trucks operate on complex and varied road conditions, often rugged and uneven, with frequent slopes and curves, creating a harsh driving environment. Sometimes, they even have to unload on steep inclines. Furthermore, the type of cargo loaded significantly impacts the stability of the dump truck. For example, with the same vehicle, if the cargo is dry sand, the cargo will be unloaded once the cargo box is raised to a certain angle, preventing a rollover accident. However, if the cargo is clay, even when the cargo box is raised to a considerable angle, a significant amount of cargo will remain on the box. In this case, the vehicle's center of gravity is very high, and if the center of gravity shifts to one side, a rollover accident can occur. Summary of the Invention

[0003] This application provides a method for preventing the tipping of dump trucks, in order to solve at least one technical problem existing in the related art.

[0004] According to one aspect of the embodiments of this application, the method includes: acquiring in real time the vehicle tilt angle and steering wheel angle formed by the vehicle and the ground; determining the relationship between the vehicle tilt angle and a first preset tilt angle and a second preset tilt angle; determining the relationship between the steering wheel angle and a preset angle; and controlling the vehicle state according to the relationship between the vehicle tilt angle and the first preset tilt angle and the second preset tilt angle, and the relationship between the steering wheel angle and the preset angle.

[0005] As an optional implementation, it further includes: determining a first maximum permissible tilt angle when the vehicle is fully loaded and stationary with the cargo box not raised; determining a second maximum permissible tilt angle when the vehicle is fully loaded and stationary with the cargo box raised; the first preset tilt angle is the first maximum permissible tilt angle minus a first preset difference; the second preset tilt angle is the second maximum permissible tilt angle minus a second preset difference.

[0006] As an optional implementation, it also includes: the preset turning angle is the maximum steering wheel turning angle minus a third preset difference.

[0007] As an optional implementation, controlling the vehicle state based on the relationship between the overall vehicle tilt angle and the first preset tilt angle and the second preset tilt angle, and the relationship between the steering wheel angle and the preset steering angle, includes: in the driving state, if the overall vehicle tilt angle is greater than or equal to the first preset tilt angle and the steering wheel angle is less than the preset steering angle, controlling the power supply to the vehicle's dumping system to be cut off, and controlling the vehicle speed to be less than or equal to the first preset vehicle speed; if the overall vehicle tilt angle is greater than or equal to the first preset tilt angle and the steering wheel angle is greater than or equal to the preset steering angle, controlling the power supply to the vehicle's dumping system to be cut off, and controlling the vehicle speed to be less than or equal to the second preset vehicle speed; the second preset vehicle speed is less than the first preset vehicle speed.

[0008] As an optional implementation, controlling the vehicle state based on the relationship between the overall vehicle tilt angle and the first preset tilt angle and the second preset tilt angle, and the relationship between the steering wheel angle and the preset angle, includes: in the driving state, if the overall vehicle tilt angle is greater than or equal to the second preset tilt angle and less than the first preset tilt angle, and the steering wheel angle is less than the preset angle, controlling the power off of the vehicle's dumping system; if the overall vehicle tilt angle is greater than or equal to the second preset tilt angle and less than the first preset tilt angle, and the steering wheel angle is greater than or equal to the preset angle, controlling the power off of the vehicle's dumping system, and controlling the vehicle speed to be less than or equal to a third preset speed.

[0009] As an optional implementation, controlling the vehicle state based on the relationship between the overall vehicle tilt angle and the first preset tilt angle and the second preset tilt angle, and the relationship between the steering wheel angle and the preset angle, includes: in the driving state, if the overall vehicle tilt angle is less than the second preset tilt angle and the steering wheel angle is greater than or equal to the preset angle, controlling the vehicle speed to be less than or equal to a fourth preset speed.

[0010] As an optional implementation, the fourth preset speed is the maximum permissible speed corresponding to the maximum steering wheel angle.

[0011] As an optional implementation, controlling the vehicle state based on the relationship between the overall vehicle tilt angle and the first preset tilt angle and the second preset tilt angle, and the relationship between the steering wheel angle and the preset angle, includes: in the lifting state, if the overall vehicle tilt angle is greater than or equal to the second preset tilt angle, controlling the vehicle's dumping system to cut off power.

[0012] According to another aspect of this application, an electronic device is provided, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus, the memory is used to store a computer program, and the processor is used to execute the steps of the dump truck anti-rollover control method by running the computer program stored in the memory.

[0013] According to another aspect of this application, a computer-readable storage medium is provided, wherein a computer program is stored therein, wherein the computer program is configured to execute the steps of the dump truck anti-rollover control method when running.

[0014] This application provides a method for preventing tipping over of a dump truck, including real-time acquisition of the vehicle tilt angle and steering wheel angle formed by the vehicle and the ground; determining the relationship between the vehicle tilt angle and a first preset tilt angle and a second preset tilt angle; determining the relationship between the steering wheel angle and a preset angle; and controlling the vehicle state based on the relationship between the vehicle tilt angle and the first and second preset tilt angles, and the relationship between the steering wheel angle and the preset angles. This method enables users to promptly detect dangerous situations during the dump truck's driving and lifting processes, effectively improving the stability and safety of the entire vehicle. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic flowchart of a dump truck anti-rollover control method provided according to an embodiment of this application. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0019] 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 data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover 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.

[0020] like Figure 1 As shown in the figure, this application provides a method for preventing dump truck rollover, including:

[0021] S1 acquires the vehicle tilt angle and steering wheel angle formed by the vehicle and the ground in real time;

[0022] S2 determines the relationship between the vehicle tilt angle and the first preset tilt angle and the second preset tilt angle;

[0023] S3 determines the relationship between the steering wheel angle and the preset angle;

[0024] S4 controls the vehicle state based on the relationship between the overall vehicle tilt angle and the first preset tilt angle and the second preset tilt angle, and the relationship between the steering wheel angle and the preset angle.

[0025] Specifically, by controlling the dump truck according to the relationship between the overall vehicle tilt angle and the first and second preset tilt angles, users can promptly detect dangerous situations during the driving and lifting processes of the dump truck, effectively improving the stability and safety of the entire vehicle.

[0026] The first preset tilt angle and the second preset tilt angle can be further determined based on the maximum permissible tilt angle when the vehicle is fully loaded and stationary with the cargo box not lifted and the maximum permissible tilt angle when the vehicle is fully loaded and stationary with the cargo box lifted. Alternatively, they can be directly set to the maximum permissible tilt angle when the vehicle is fully loaded and stationary with the cargo box not lifted and the maximum permissible tilt angle when the vehicle is fully loaded and stationary with the cargo box lifted. In addition, they can be determined based on the maximum permissible tilt angle when the vehicle is fully loaded and stationary with the cargo box not lifted at a certain vehicle speed and the maximum permissible tilt angle when the vehicle is fully loaded and stationary with the cargo box lifted at a certain vehicle speed. Or they can be determined based on the maximum permissible tilt angle when the vehicle has a certain mass (not fully loaded) and stationary with the cargo box not lifted and the maximum permissible tilt angle when the vehicle has a certain mass (not fully loaded) and stationary with the cargo box lifted.

[0027] The following embodiments of this application describe how to further determine a first preset tilt angle and a second preset tilt angle based on the maximum permissible tilt angle when the vehicle is fully loaded and stationary with the cargo box not raised, and the maximum permissible tilt angle when the vehicle is fully loaded and stationary with the cargo box raised.

[0028] As an optional implementation, it further includes: determining a first maximum permissible tilt angle when the vehicle is fully loaded and stationary with the cargo box not raised; determining a second maximum permissible tilt angle when the vehicle is fully loaded and stationary with the cargo box raised; the first preset tilt angle is the first maximum permissible tilt angle minus a first preset difference; the second preset tilt angle is the second maximum permissible tilt angle minus a second preset difference.

[0029] Specifically, the specific values ​​for the first preset difference and the second preset difference can be determined based on the dump truck's model, condition, etc.; moreover, the first preset difference and the second preset difference can be equal or unequal. For example, the range for the first preset difference and the second preset difference can be 1-2. Furthermore, the first maximum permissible tilt angle is the critical value at which the vehicle will not tip over when fully loaded and stationary with the cargo box not raised; the second maximum permissible tilt angle is the critical value at which the vehicle will not tip over when fully loaded and stationary with the cargo box raised. Therefore, it is easy to understand that since raising the cargo box causes the vehicle's overall center of gravity to rise, the second maximum permissible tilt angle is less than the first maximum permissible tilt angle.

[0030] Setting the first preset tilt angle and the second preset tilt angle to the first maximum permissible tilt angle minus the first preset difference and the second maximum permissible tilt angle minus the second preset difference respectively ensures that the vehicle will not roll over under all working conditions, further guaranteeing the stability and safety of the entire vehicle.

[0031] As an optional implementation, it also includes: the preset turning angle is the maximum steering wheel turning angle minus a third preset difference.

[0032] Specifically, when the steering wheel angle is large, the vehicle may make sharp turns and tend to roll over. To avoid this, the preset angle can be set to the maximum steering wheel angle minus a third preset difference, which can further ensure the stability and safety of the vehicle.

[0033] The third preset difference can be set according to the actual vehicle model, load, etc. For example, the third preset difference can be set to 2-3.

[0034] As an optional implementation, controlling the vehicle state based on the relationship between the overall vehicle tilt angle and the first preset tilt angle and the second preset tilt angle, and the relationship between the steering wheel angle and the preset steering angle, includes: in the driving state, if the overall vehicle tilt angle is greater than or equal to the first preset tilt angle and the steering wheel angle is less than the preset steering angle, controlling the power supply to the vehicle's dumping system to be cut off, and controlling the vehicle speed to be less than or equal to the first preset vehicle speed; if the overall vehicle tilt angle is greater than or equal to the first preset tilt angle and the steering wheel angle is greater than or equal to the preset steering angle, controlling the power supply to the vehicle's dumping system to be cut off, and controlling the vehicle speed to be less than or equal to the second preset vehicle speed; the second preset vehicle speed is less than the first preset vehicle speed.

[0035] Specifically, when the vehicle is in motion and not in a lifted state, the dumping system should be disconnected. However, to prevent unforeseen circumstances, the dumping system is still powered off when the vehicle's tilt angle exceeds a first preset angle. Simultaneously, if the steering wheel angle is less than the preset angle, the vehicle speed is controlled to be less than or equal to a first preset speed; if the steering wheel angle is greater than or equal to the preset angle, the vehicle speed is controlled to be less than or equal to a second preset speed. This significantly reduces the risk of vehicle rollover during operation, further ensuring the vehicle's stability and safety.

[0036] The first preset speed can be a safe speed at which the vehicle will not roll over when the overall tilt angle is the first preset tilt angle and the steering wheel angle is less than a preset angle. The second preset speed can be a safe speed at which the vehicle will not roll over when the overall tilt angle is the first preset tilt angle and the steering wheel angle is greater than or equal to a preset angle. This application does not impose further limitations on this.

[0037] In addition, when the vehicle is in motion and the overall vehicle tilt angle is greater than the first preset tilt angle, the instrument panel, control panel, or sound output device in the driver's cab can be controlled to output a signal indicating that the vehicle is in a high-level rollover alarm state; when the steering wheel angle is greater than the preset angle, the instrument panel, control panel, or sound output device in the driver's cab can be controlled to output a signal indicating a steering wheel angle alarm state.

[0038] As an optional implementation, controlling the vehicle state based on the relationship between the overall vehicle tilt angle and the first preset tilt angle and the second preset tilt angle, and the relationship between the steering wheel angle and the preset angle, includes: in the driving state, if the overall vehicle tilt angle is greater than or equal to the second preset tilt angle and less than the first preset tilt angle, and the steering wheel angle is less than the preset angle, controlling the power off of the vehicle's dumping system; if the overall vehicle tilt angle is greater than or equal to the second preset tilt angle and less than the first preset tilt angle, and the steering wheel angle is greater than or equal to the preset angle, controlling the power off of the vehicle's dumping system, and controlling the vehicle speed to be less than or equal to a third preset speed.

[0039] Specifically, when the vehicle is in motion and not in a lifted state, the dumping system should be disconnected. However, to avoid special situations, the dumping system is still powered off when the vehicle tilt angle is greater than the second preset tilt angle but less than the first preset tilt angle. Simultaneously, if the steering wheel angle is less than the preset angle, no further vehicle movements are performed; if the steering wheel angle is greater than or equal to the preset angle, the vehicle speed is controlled to be less than or equal to the third preset speed.

[0040] The third preset speed can be a safe speed at which the vehicle will not roll over when the steering wheel angle is at its maximum.

[0041] In addition, when the vehicle is in motion and the overall vehicle tilt angle is greater than the second preset tilt angle but less than the first preset tilt angle, the instrument panel, control panel, or sound output device in the driver's cab can be controlled to output a signal indicating that the vehicle is in a low-level rollover alarm state; when the steering wheel angle is greater than a preset angle, the instrument panel, control panel, or sound output device in the driver's cab can be controlled to output a signal indicating a steering wheel angle alarm state.

[0042] As an optional implementation, controlling the vehicle state based on the relationship between the overall vehicle tilt angle and the first preset tilt angle and the second preset tilt angle, and the relationship between the steering wheel angle and the preset angle, includes: in the driving state, if the overall vehicle tilt angle is less than the second preset tilt angle and the steering wheel angle is greater than or equal to the preset angle, controlling the vehicle speed to be less than or equal to a fourth preset speed.

[0043] As an optional implementation, the fourth preset speed is the maximum permissible speed corresponding to the maximum steering wheel angle.

[0044] Specifically, the fourth preset speed can also be a safe speed at which the vehicle will not roll over when the steering wheel angle is at its maximum.

[0045] In addition, when the steering wheel angle is greater than the preset angle, the dashboard, control panel or sound output device in the driver's cab can be controlled to output a signal to indicate the steering wheel angle alarm.

[0046] As an optional implementation, controlling the vehicle state based on the relationship between the overall vehicle tilt angle and the first preset tilt angle and the second preset tilt angle, and the relationship between the steering wheel angle and the preset angle, includes: in the lifting state, if the overall vehicle tilt angle is greater than or equal to the second preset tilt angle, controlling the vehicle's dumping system to cut off power.

[0047] In the lifted state, some goods, such as fine sand, will be unloaded when the cargo box is raised to a certain angle, preventing a rollover accident. However, some goods, such as clay, which are larger in volume, will still have a significant amount remaining on the cargo box even when it is raised to a certain angle. In this case, the vehicle's center of gravity is very high, and if the center of gravity shifts to one side, a rollover accident can occur. Therefore, if the vehicle's tilt angle is greater than or equal to the second preset tilt angle, the vehicle's self-unloading system will be powered off to ensure vehicle stability and minimize the risk of rollover.

[0048] According to another aspect of this application, an electronic device is provided, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus, the memory is used to store a computer program, and the processor is used to execute the steps of the dump truck anti-rollover control method by running the computer program stored in the memory.

[0049] According to another aspect of this application, a computer-readable storage medium is provided, wherein a computer program is stored therein, wherein the computer program is configured to execute the steps of the dump truck anti-rollover control method when running.

[0050] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0051] If the integrated units in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in the aforementioned computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause one or more electronic devices (which may be personal computers, servers, or network devices, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0052] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0053] In the several embodiments provided in this application, it should be understood that the disclosed client can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection between units or modules, and may be electrical or other forms.

[0054] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of the solution provided in this embodiment, depending on actual needs.

[0055] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0056] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0057] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A method of roll-over prevention control for a dump truck, characterized by, The method comprises: real-time acquisition of a whole vehicle inclination angle formed by the whole vehicle and the ground and a steering wheel turning angle; determination of a size relationship between the whole vehicle inclination angle and a first preset inclination angle and a second preset inclination angle; determination of a size relationship between the steering wheel turning angle and a preset turning angle; control of a vehicle state according to the size relationship between the whole vehicle inclination angle and the first preset inclination angle and the second preset inclination angle and the size relationship between the steering wheel turning angle and the preset turning angle. The method further comprises: determination of a first maximum allowable inclination angle when a cargo box is not lifted in a full-load and stationary state of the vehicle; determination of a second maximum allowable inclination angle when the cargo box is lifted in the full-load and stationary state of the vehicle; the first preset inclination angle is the first maximum allowable inclination angle minus a first preset difference value; the second preset inclination angle is the second maximum allowable inclination angle minus a second preset difference value. The method further comprises: the preset turning angle is a maximum steering wheel turning angle minus a third preset difference value. In the driving state, if the whole vehicle inclination angle is greater than or equal to the first preset inclination angle and the steering wheel turning angle is less than the preset turning angle, the self-unloading system of the vehicle is powered off, and the vehicle speed is controlled to be less than or equal to a first preset vehicle speed. If the whole vehicle inclination angle is greater than or equal to the first preset inclination angle and the steering wheel turning angle is greater than or equal to the preset turning angle, the self-unloading system of the vehicle is powered off, and the vehicle speed is controlled to be less than or equal to a second preset vehicle speed. The second preset vehicle speed is less than the first preset vehicle speed. In the driving state, if the whole vehicle inclination angle is greater than or equal to the second preset inclination angle and less than the first preset inclination angle and the steering wheel turning angle is less than the preset turning angle, the self-unloading system of the vehicle is powered off.

2. The roll-over prevention control method for a dump truck according to claim 1, characterized by, If the whole vehicle inclination angle is greater than or equal to the second preset inclination angle and less than the first preset inclination angle and the steering wheel turning angle is greater than or equal to the preset turning angle, the self-unloading system of the vehicle is powered off, and the vehicle speed is controlled to be less than or equal to a third preset vehicle speed. In the driving state, if the whole vehicle inclination angle is less than the second preset inclination angle and the steering wheel turning angle is greater than or equal to the preset turning angle, the vehicle speed is controlled to be less than or equal to a fourth preset vehicle speed. The fourth preset vehicle speed is a maximum allowable vehicle speed corresponding to a maximum steering wheel turning angle.

3. The roll-over prevention control method for a dump truck according to claim 1, characterized by, In the lifting state, if the whole vehicle inclination angle is greater than or equal to the second preset inclination angle, the self-unloading system of the vehicle is powered off.

4. The roll-over prevention control method for a dump truck according to claim 3, characterized by, The processor, the communication interface and the memory complete communication with each other through the communication bus, and the method further comprises:

5. The roll-over prevention control method for a dump truck according to claim 1, characterized by, the memory is configured to store a computer program. ​ 6. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein, ​ ​ The processor is configured to execute the self-unloading truck anti-rollover control method steps of any one of claims 1-5 by running the computer program stored on the memory.

7. A computer readable storage medium, characterized in that, The storage medium stores a computer program, wherein the computer program is configured to execute the self-unloading truck anti-rollover control method steps of any one of claims 1-5 when running.

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