Suspension adjustment method, apparatus, device and storage medium based on working mode

Abstract

The application provides a suspension adjustment method and device based on working modes, an apparatus and a storage medium, and particularly relates to the technical field of suspension adjustment of a cargo commercial vehicle. The method obtains driving information and power-on parameters of the cargo commercial vehicle. According to the driving information and the power-on parameters, a target working mode of the cargo commercial vehicle is determined, wherein different working modes correspond to different suspension heights. According to the target working mode, the suspension height of the cargo commercial vehicle is adjusted according to the target suspension height corresponding to the target working mode. The method automatically adjusts the suspension height according to different modes, adjusts the suspension height according to different demand states of the vehicle, so that the vehicle is in the best driving state, brings good driving experience to the driver, and improves the performance and comfort of the vehicle.

Description

Technical Field

[0001] This application relates to the field of suspension adjustment technology for commercial freight vehicles, and more particularly to a suspension adjustment method, device, apparatus, and storage medium based on working mode. Background Technology

[0002] The suspension system is a general term for all force-transmitting connections between a car's frame (or monocoque chassis) and axles (or wheels). Its function is to transmit the forces and torques acting between the wheels and the frame, and to buffer the impact forces transmitted from uneven road surfaces to the frame or body, reducing the resulting vibrations to ensure a smooth ride. Heavy-duty trucks typically use either leaf spring or rubber suspension systems on the rear axle. Air suspension is used to reduce the vehicle's weight, improve ride comfort, and protect fragile cargo, effectively reducing shock and weight.

[0003] The electronically controlled air suspension (ECAS) consists of a control unit, solenoid valves, a height sensor, airbags, pressure sensors, and a remote control. Its basic working principle is that the height sensor detects changes in vehicle height (the distance between the chassis and the axle) and transmits this information to the ECU. In addition to height information, the ECU also receives other input information, such as vehicle speed, braking information, door information, and air supply pressure information. The ECU then integrates all the input information, determines the current vehicle status, and, according to its internal control logic, activates the solenoid valves. These solenoid valves then regulate the inflation and deflation of the airbags. The ECAS system can adapt to different road conditions and vehicle speeds, automatically controlling the suspension height. In the height control process, the target height generation strategy is the core of ECAS control, while pattern recognition is the foundation of this strategy.

[0004] Current suspension adjustment is achieved manually by calculating the variance of vehicle height and vehicle speed, and selecting different operating modes. These modes include Comfort, Sport, and Natural, allowing for the selection of different control targets and strategies based on actual requirements. However, these operating modes are designed for passenger vehicles and are not applicable to commercial freight vehicles. Suspension adjustment in commercial freight vehicles typically maintains a fixed height or involves manual adjustment via remote control; there is no automatic suspension adjustment solution. Summary of the Invention

[0005] This application provides a suspension adjustment method, device, apparatus, and storage medium based on operating modes to solve the problem that there is no automatic suspension adjustment for the operating modes of commercial freight vehicles in the prior art.

[0006] In a first aspect, this application provides a suspension adjustment method based on operating modes, comprising:

[0007] Obtain driving information and power-on parameters of commercial freight vehicles;

[0008] Based on the driving information and the power-on parameters, the target operating mode of the commercial vehicle is determined, wherein different operating modes correspond to different suspension heights;

[0009] Based on the target operating mode, the suspension height of the commercial vehicle is adjusted according to the target suspension height corresponding to the target operating mode.

[0010] Optionally, the operating modes include: initialization mode, start-up control mode, and steady-state driving mode. Before acquiring the driving status and power-on status of the commercial vehicle, the method further includes:

[0011] Obtain the vehicle information of the commercial cargo vehicle, the vehicle information being used to indicate the vehicle model, vehicle configuration information, and suspension height corresponding to multiple operating modes of the commercial cargo vehicle;

[0012] Based on the vehicle information, the suspension height corresponding to the steady-state driving mode is determined as the first suspension height, the suspension height corresponding to the initialization mode is determined as the second suspension height, and the suspension height corresponding to the start control mode is determined as the third suspension height.

[0013] If a height modification command is received from the driver, the fourth suspension height is determined according to the height modification command, and the suspension height corresponding to the start control mode is modified from the third suspension height to the fourth suspension height. The height modification command is used to instruct the suspension height corresponding to the start control mode to be modified.

[0014] Optionally, the driving information is used to indicate the solenoid valve information, suspension height information, and whether the commercial vehicle is in a driving state. The power-on parameters include: powered-on state and powered-off state. The operating mode further includes: loading and unloading mode. Determining the target operating mode of the commercial vehicle based on the driving information and the power-on parameters includes:

[0015] When the power-on parameter changes from the non-power-on state to the power-on state, the target operating mode is determined to be the initialization mode;

[0016] When the power-on parameter is in the powered-on state and the driving speed of the commercial vehicle is zero, or when the power-on parameter changes from the powered-on state to the unpowered state and the commercial vehicle is in the standby state, the target working mode is determined to be the start-up control mode.

[0017] When the solenoid valve information indicates that the solenoid valve of the commercial vehicle is not activated, the suspension height information is used to determine whether the change in the suspension height of the commercial vehicle within a preset time period exceeds a preset change amount.

[0018] If the suspension height of the commercial vehicle changes by more than a preset amount within a preset time period, then the target working mode is determined to be the loading and unloading mode.

[0019] When the speed of the commercial vehicle is greater than zero, the target operating mode is determined to be a steady-state driving mode.

[0020] Optionally, adjusting the suspension height of the commercial vehicle according to the target operating mode and the target suspension height corresponding to the target operating mode includes:

[0021] When the target working mode is the initialization mode, the solenoid valve is controlled to enter the inflation state so that the solenoid valve inflates the airbag until the suspension height reaches the second suspension height;

[0022] When the target working mode is the start control mode, the solenoid valve is controlled to enter the adjustment state so that the solenoid valve inflates or deflates the airbag until the suspension height reaches the third suspension height;

[0023] When the target operating mode is the steady-state driving mode, it is determined whether the driving speed of the commercial vehicle is greater than the preset speed. When the driving speed of the commercial vehicle is greater than the preset speed, the solenoid valve is controlled to enter the adjustment state so that the solenoid valve releases air into the airbag until the suspension height reaches the first suspension height, wherein the first suspension height is lower than the second suspension height.

[0024] Optionally, if the target operating mode is the loading and unloading mode, then according to the target operating mode and the target suspension height corresponding to the target operating mode, the suspension height of the commercial vehicle is adjusted, including:

[0025] Real-time acquisition of the suspension height change of the commercial vehicle;

[0026] Based on the change in suspension height, the current suspension height is adjusted via the solenoid valve to keep the suspension height of the commercial vehicle stable.

[0027] Optionally, the operating mode further includes: a first fault mode and a second fault mode, wherein determining the target operating mode of the commercial vehicle based on the driving information and the power-on parameters includes:

[0028] Based on the solenoid valve information, determine whether the solenoid valve is faulty; if the solenoid valve is faulty, determine the target operating mode as the first fault mode.

[0029] Based on the suspension height information, determine whether the height sensor is faulty; if the height sensor is faulty, determine the target operating mode as the second fault mode.

[0030] The step of adjusting the suspension height of the commercial vehicle according to the target operating mode and the target suspension height corresponding to the target operating mode includes:

[0031] If the target operating mode is the first fault mode, then the instrument panel of the cargo vehicle is controlled to display a first fault indicator, which is used to indicate that the solenoid valve is faulty.

[0032] If the target operating mode is the second fault mode, the opening of the solenoid valve is controlled according to the fifth suspension height, and the instrument panel of the commercial vehicle is controlled to display the second fault indicator. The second fault indicator is used to indicate that the height sensor is faulty. The fifth suspension height is the previously calculated safe suspension height.

[0033] Secondly, this application provides a suspension adjustment device based on working mode, comprising:

[0034] The acquisition module is used to acquire the driving information and power-on parameters of the commercial vehicle.

[0035] The determination module is used to determine the target operating mode of the commercial vehicle based on the driving information and the power-on parameters, wherein different operating modes correspond to different suspension heights;

[0036] The processing module is used to adjust the suspension height of the commercial vehicle according to the target operating mode and the target suspension height corresponding to the target operating mode.

[0037] Optionally, the acquisition module is further configured to acquire vehicle information of the commercial vehicle, wherein the vehicle information is used to indicate the vehicle model, vehicle configuration information, and suspension height corresponding to multiple working modes of the commercial vehicle.

[0038] The determining module is further configured to determine, based on the vehicle information, the suspension height corresponding to the steady-state driving mode as the first suspension height, the suspension height corresponding to the initialization mode as the second suspension height, and the suspension height corresponding to the start-up control mode as the third suspension height;

[0039] The determining module is further configured to, if a height modification instruction sent by the driver is received, determine a fourth suspension height according to the height modification instruction, and modify the suspension height corresponding to the start control mode from the third suspension height to the fourth suspension height, wherein the height modification instruction is used to indicate that the suspension height corresponding to the start control mode is modified.

[0040] Optionally, the device further includes: a judgment module:

[0041] The determining module is further configured to determine the target operating mode as the initialization mode when the power-on parameter changes from the non-power-on state to the power-on state;

[0042] The determining module is further configured to determine the target working mode as the start-up control mode when the power-on parameter is in the powered-on state and the driving speed of the commercial vehicle is zero, or when the power-on parameter changes from the powered-on state to the unpowered state and the commercial vehicle is in the standby state.

[0043] The judgment module is used to determine, based on the suspension height information, whether the change in the suspension height of the commercial vehicle within a preset time period exceeds a preset change amount when the solenoid valve information indicates that the solenoid valve of the commercial vehicle is not activated.

[0044] The determining module is further configured to determine the target working mode as the loading and unloading mode if the change in the suspension height of the commercial vehicle exceeds a preset change amount within a preset time period.

[0045] The determining module is further configured to determine the target operating mode as a steady-state driving mode when the driving speed of the commercial vehicle is greater than zero.

[0046] Optionally, the device further includes: a control module.

[0047] The control module is used to control the solenoid valve to enter the inflation state when the target working mode is the initialization mode, so that the solenoid valve inflates the airbag until the suspension height reaches the second suspension height;

[0048] The control module is also used to control the solenoid valve to enter the adjustment state when the target working mode is the start control mode, so that the solenoid valve inflates or deflates the airbag until the suspension height reaches the third suspension height.

[0049] The judgment module is further configured to determine whether the driving speed of the commercial vehicle is greater than a preset speed when the target working mode is the steady-state driving mode, and when the driving speed of the commercial vehicle is greater than the preset speed, control the solenoid valve to enter the adjustment state so that the solenoid valve releases air into the airbag until the suspension height reaches the first suspension height, wherein the first suspension height is lower than the second suspension height.

[0050] Optionally, the acquisition module is used to acquire the real-time change in suspension height of the commercial vehicle.

[0051] The processing module is used to adjust the current suspension height through the solenoid valve according to the amount of suspension height change, so as to keep the suspension height of the commercial vehicle stable.

[0052] Optionally, the determining module is used to determine whether the solenoid valve is faulty based on the solenoid valve information, and when the solenoid valve is faulty, to determine the target operating mode as the first fault mode;

[0053] The determining module is further configured to determine whether the height sensor is faulty based on the suspension height information, and when the height sensor is faulty, determine the target operating mode as the second fault mode;

[0054] The processing module is further configured to adjust the suspension height of the commercial vehicle according to the target operating mode and the target suspension height corresponding to the target operating mode, including:

[0055] The control module is configured to control the dashboard of the commercial vehicle to display a first fault indicator if the target operating mode is the first fault mode. The first fault indicator is used to indicate that the solenoid valve is faulty.

[0056] The control module is further configured to, if the target operating mode is the second fault mode, control the opening of the solenoid valve according to the fifth suspension height, and control the instrument panel of the commercial vehicle to display a second fault indicator, the second fault indicator being used to indicate that the height sensor is faulty, and the fifth suspension height being the previously calculated safe suspension height.

[0057] Thirdly, this application provides a suspension adjustment device based on working mode, the device comprising:

[0058] Memory;

[0059] processor;

[0060] The memory stores computer-executed instructions;

[0061] The processor executes computer execution instructions stored in the memory to implement the method as described in the first aspect and various possible implementations of the first aspect.

[0062] Fourthly, this application provides a computer-readable storage medium having a computer program stored thereon, the computer program being executed by a processor to implement the suspension adjustment method based on the operating mode as described in the first aspect and various possible implementations of the first aspect above.

[0063] This application provides a suspension adjustment method, device, apparatus, and storage medium based on operating modes. The method acquires the driving information and power-on parameters of a commercial vehicle. Based on the driving information and power-on parameters, it determines the target operating mode of the commercial vehicle, where different operating modes correspond to different suspension heights. According to the target operating mode, the suspension height of the commercial vehicle is adjusted according to the target suspension height corresponding to the target operating mode. This method automatically adjusts the suspension height according to different modes and the different needs of the vehicle, thereby placing the vehicle in an optimal driving state, providing the driver with a good driving experience, and improving vehicle performance and comfort. Attached Figure Description

[0064] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0065] Figure 1 A schematic diagram of a scenario for the suspension adjustment method based on working mode provided in this application;

[0066] Figure 2 A flowchart illustrating the suspension adjustment method based on working mode provided in this application. Figure 1 ;

[0067] Figure 3 A flowchart illustrating the suspension adjustment method based on working mode provided in this application. Figure 2 ;

[0068] Figure 4 A flowchart illustrating the suspension adjustment method based on working mode provided in this application. Figure 3 ;

[0069] Figure 5 A schematic diagram of the suspension adjustment device based on working mode provided in this application;

[0070] Figure 6 A schematic diagram of the suspension adjustment device based on working mode provided in this application.

[0071] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0072] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0073] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention 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, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, products, or apparatus.

[0074] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0075] The suspension system is a collective term for all force-transmitting connections between a car's frame and wheels. Its function is to transmit the forces and torques acting between the wheels and the frame, and to buffer the impact forces transmitted from uneven road surfaces to the frame or body, reducing the resulting vibrations to ensure a smooth ride. Heavy-duty trucks typically use either leaf spring or rubber suspension systems on the rear axle. To reduce the vehicle's weight, improve ride comfort, and protect fragile cargo, air suspension is used, providing excellent shock absorption and weight reduction.

[0076] The Electronically Controlled Air Suspension (ECAS) system consists of a control unit, solenoid valves, a height sensor, airbags, pressure sensors, and a remote controller. Its basic working principle is that the height sensor detects changes in vehicle height (the distance between the chassis and axle) and transmits this information to the ECU. In addition to height information, the ECU also receives other input information, such as vehicle speed, braking status, door status, and air supply pressure. The ECU then integrates all input information, determines the current vehicle status, and, according to its internal control logic, activates the solenoid valves to regulate the inflation and deflation of each airbag. The ECAS system can adapt to different road conditions and vehicle speeds, automatically controlling the suspension height. In the height control process, the target height generation strategy is the core of ECAS control, while pattern recognition is the foundation of this strategy.

[0077] Current suspension adjustment is achieved manually by calculating the variance of vehicle height and vehicle speed, and selecting different operating modes. These modes include Comfort, Sport, and Natural, allowing for the selection of different control targets and strategies based on actual requirements. However, these operating modes are designed for passenger vehicles and are not applicable to commercial freight vehicles. Suspension adjustment in commercial freight vehicles typically maintains a fixed height or involves manual adjustment via remote control; there is no automatic suspension adjustment solution.

[0078] To address the aforementioned issues, this application proposes a suspension adjustment method based on operating modes. This method determines multiple operating modes of the commercial vehicle according to its driving information and power-on parameters, and adjusts the suspension of the commercial vehicle according to different operating modes to achieve automatic adjustment of the suspension and adapt to the different needs of the commercial vehicle.

[0079] Figure 1 A schematic diagram illustrating a scenario for the suspension adjustment method based on working mode provided in this application. Figure 1 As shown, the ECAS electronic control system of a commercial freight vehicle mainly consists of a solenoid valve 1, an airbag 2, a frame 3, an electronic controller 4, a height sensor 5, and wheels 6. H is the height between the wheels and the frame, i.e., the suspension height.

[0080] The main working principle of the ECAS electronic control system is as follows: Height sensor 5 is mounted on the frame 3 and connected to the axle via a swing arm. When the height of the vehicle body changes relative to the axle, an induced current is generated within height sensor 5, and the electrical signal is transmitted to electronic controller 4. Electronic controller 4 compares this height change with the preset height stored within it and controls solenoid valve 1 to inflate or deflate airbag 2, thereby achieving constant vehicle height control. This method categorizes the commercial vehicle into different operating modes based on its driving information and power-on parameters, and sets different suspension heights for each operating mode. During the use of the commercial vehicle, the suspension height is adjusted according to different operating modes, allowing the vehicle's suspension height to be adjusted according to the user's needs.

[0081] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0082] Figure 2 A flowchart illustrating the suspension adjustment method based on working mode provided in this application embodiment. Figure 1 The executing entity in this embodiment is a commercial cargo vehicle. For example... Figure 2 As shown, the method includes:

[0083] S101: Obtain driving information and power-on parameters of the commercial vehicle.

[0084] The driving information is used to indicate the solenoid valve information, suspension height information, and whether the commercial vehicle is in motion. Power-on parameters include: powered-on state and powered-off state.

[0085] Understandably, driving information specifically refers to real-time information such as whether the solenoid valve is working, the suspension height, and whether the commercial vehicle is moving. "Powered on" means the commercial vehicle is powered on (i.e., in the ON position). Real-time acquisition of this information allows for the determination of different operating modes for the commercial vehicle, thereby adjusting the suspension height and improving driving safety and comfort.

[0086] S102: Determine the target operating mode of the commercial vehicle based on the driving information and the power-on parameters, wherein different operating modes correspond to different suspension heights.

[0087] Understandably, the operating modes of commercial freight vehicles are first categorized into different types. Based on driving information and power-on parameters, the current state is determined to be a specific operating mode, also known as the target operating mode. The specific steps for determining the target operating mode based on driving information and power-on parameters are detailed below and will not be repeated here.

[0088] S103: Based on the target operating mode, adjust the suspension height of the commercial vehicle according to the target suspension height corresponding to the target operating mode.

[0089] Understandably, the target operating mode is a defined operating mode, and the target suspension height is the most suitable suspension height corresponding to this operating mode. After the operating mode is determined, the commercial vehicle will automatically adjust the suspension to the target suspension height to ensure vehicle safety and driving comfort.

[0090] This embodiment provides a suspension adjustment method based on operating modes, which acquires the driving information and power-on parameters of a commercial vehicle. Based on the driving information and power-on parameters, the target operating mode of the commercial vehicle is determined, where different operating modes correspond to different suspension heights. According to the target operating mode, the suspension height of the commercial vehicle is adjusted according to the target suspension height corresponding to the target operating mode. This method automatically adjusts the suspension height according to different modes, adjusting the suspension height based on different vehicle needs, thereby ensuring the vehicle is in optimal driving condition, providing the driver with a good driving experience, and improving vehicle performance and comfort.

[0091] Figure 3 A flowchart illustrating the suspension adjustment method based on working mode provided in this application embodiment. Figure 2 This embodiment is a detailed description of the suspension adjustment method based on the working mode, building upon Embodiment 1. For example... Figure 3 As shown, the method includes:

[0092] S201: Obtain the vehicle information of the commercial cargo vehicle, wherein the vehicle information is used to indicate the vehicle model, vehicle configuration information, and suspension height corresponding to multiple operating modes of the commercial cargo vehicle.

[0093] Understandably, the suspension adjustment method based on operating modes is applicable to most commercial freight vehicles. Therefore, before using it, different parameters need to be set for the suspension adjustment of commercial freight vehicles. From the vehicle model and configuration information, determine the vehicle's wheel height, chassis height, and normal suspension height, and set suspension height indicators based on the vehicle's own data conditions as the setting values ​​for subsequent suspension height adjustments.

[0094] S202: Based on the vehicle information, determine the suspension height corresponding to the steady-state driving mode as the first suspension height, the suspension height corresponding to the initialization mode as the second suspension height, and the suspension height corresponding to the start-up control mode as the third suspension height.

[0095] Understandably, steady-state driving mode refers to the commercial vehicle being in normal driving condition, with the suspension height set to the first suspension height, also known as the economic operating condition driving height. Initialization mode refers to the vehicle being powered on (15V) with the key in the ON position; the suspension height is set to the second suspension height, also known as the level normal driving height. Start-up control mode exists in two states: the first state is when the commercial vehicle is powered on (15V) and the vehicle speed is 0; the second state is when the commercial vehicle is powered off (15V) and in standby mode, i.e., when the vehicle switches from constant power to ignition. In both states, the commercial vehicle operates in start-up control mode, with the suspension height set to the third suspension height, which can be manually adjusted by the driver.

[0096] Among them, the economic operating condition driving height refers to the height at which the minimum primary energy consumption and the best economic benefits are achieved, while the normal horizontal driving height is the height obtained by adding the values ​​of the vehicle's suspension height and the tire radius.

[0097] S203: If a height modification command sent by the driver is received, the fourth suspension height is determined according to the height modification command, and the suspension height corresponding to the start control mode is modified from the third suspension height to the fourth suspension height. The height modification command is used to indicate the modification of the suspension height corresponding to the start control mode.

[0098] Understandably, the third suspension height is the height in the start control mode. This suspension height can be manually adjusted by the driver. The driver can manually adjust it by pressing the down or up key. Pressing the down or up key sends a height modification command to the driver, and the suspension height is adjusted according to the height modification command. The adjusted height is the fourth suspension height.

[0099] S204: Obtain driving information and power-on parameters of the commercial freight vehicle.

[0100] Step S204 is similar to step S101, and will not be described again here.

[0101] S205: When the power-on parameter changes from the non-power-on state to the power-on state, the target working mode is determined to be the initialization mode.

[0102] Understandably, when the vehicle key is in the ON position, it is assumed that the power-on parameters have changed from a non-power-on state to a power-on state, and the operating mode at this time is determined to be the initialization mode.

[0103] S206: When the power-on parameter is in the powered-on state and the driving speed of the commercial vehicle is zero, or when the power-on parameter changes from the powered-on state to the unpowered state and the commercial vehicle is in the standby state, the target working mode is determined to be the start-up control mode.

[0104] Understandably, the start-up control mode exists in two situations: the first situation is when the vehicle is powered on (15V) and the vehicle speed is 0, that is, the power-on parameters are in the powered-on state and the driving speed of the commercial vehicle is zero; the second situation is when the vehicle is powered off (15V) and in standby state, that is, when the vehicle switches from the constant power line to the ignition line. In both of these states, the working mode of the commercial vehicle is the start-up control mode.

[0105] S207: When the solenoid valve information indicates that the solenoid valve of the commercial vehicle is not activated, determine whether the change in the suspension height of the commercial vehicle within a preset time period exceeds a preset change amount based on the suspension height information.

[0106] Understandably, when the vehicle is powered on or in standby mode, the solenoid valve information is acquired in real time. Based on the solenoid valve information, it is determined whether the solenoid valve has been activated. If the solenoid valve has not been activated, but the suspension height has changed, the suspension height information is used to determine whether the change in suspension height within a preset time period exceeds a preset change amount.

[0107] S208: If the suspension height of the cargo vehicle changes by more than a preset amount within a preset time period, then the target working mode is determined to be the loading and unloading mode.

[0108] Understandably, the purpose of determining whether the change in suspension height within a preset time period exceeds a preset change amount is to ensure that the change in suspension height is caused by a change in the vehicle's weight. During vehicle operation, uneven road surfaces can also cause changes in suspension height. Determining whether the change in suspension height exceeds the preset change amount within the preset time period helps avoid misjudgments. If the change in suspension height exceeds the preset change amount within the preset time period, the target operating mode is determined to be the loading / unloading mode. This is because weight changes during loading / unloading can result in situations where the solenoid valve does not activate, but the suspension height still changes.

[0109] S209: When the speed of the commercial vehicle is greater than zero, the target operating mode is determined to be a steady-state driving mode.

[0110] S210: When the target working mode is the initialization mode, control the solenoid valve to enter the inflation state so that the solenoid valve inflates the airbag until the suspension height reaches the second suspension height.

[0111] Understandably, based on the driving information and power-on parameters of the commercial vehicle, the target working mode is determined to be the initialization mode. At this time, the electronic controller sends a control command to the solenoid valve to control the inflation of the airbag in the solenoid valve box, thereby increasing the airbag size and raising the suspension height to the preset second suspension height.

[0112] S211: When the target working mode is the start control mode, control the solenoid valve to enter the adjustment state so that the solenoid valve inflates or deflates the airbag until the suspension height reaches the third suspension height.

[0113] Understandably, based on the driving information and power-on parameters of the commercial vehicle, the target operating mode at this time is determined to be the start-up control mode. The suspension height in the start-up control mode can be adjusted according to the driver's operation. For example, if the third suspension height is lower than the second suspension height, the electronic controller sends a control command to the solenoid valve to control the airbag in the solenoid valve box to deflate, thereby reducing the airbag height and bringing the suspension height up to the third suspension height.

[0114] S212: When the target working mode is the steady-state driving mode, determine whether the driving speed of the commercial vehicle is greater than the preset speed. When the driving speed of the commercial vehicle is greater than the preset speed, control the solenoid valve to enter the adjustment state so that the solenoid valve releases air into the airbag until the suspension height reaches the first suspension height, wherein the first suspension height is lower than the second suspension height.

[0115] Understandably, based on the commercial vehicle's driving information and power-on parameters, the target operating mode is determined to be steady-state driving mode. At this time, the vehicle is in motion, and the system checks if the commercial vehicle's speed exceeds a preset speed, such as 30 km / h. If the commercial vehicle's speed exceeds the preset speed, the electronic controller controls the solenoid valve to release air into the airbag until the suspension height reaches a first suspension height. This first suspension height is the one with the lowest energy consumption, saving energy by ensuring all the truck's energy is used for travel. If the commercial vehicle's speed is below the preset speed, the driver can adjust the suspension height as needed.

[0116] Optionally, if the target operating mode is the loading and unloading mode, then according to the target operating mode and the target suspension height corresponding to the target operating mode, the suspension height of the commercial vehicle is adjusted, including:

[0117] Real-time acquisition of the suspension height change of the commercial vehicle;

[0118] Based on the change in suspension height, the current suspension height is adjusted via the solenoid valve to keep the suspension height of the commercial vehicle stable.

[0119] Understandably, if the target operating mode is loading and unloading, the vehicle's weight changes during loading and unloading. Therefore, the suspension height needs to be adjusted in real time based on these changes to ensure stability. Once the suspension height is stable, the vehicle body will also remain stable, improving user safety during loading and unloading. For example, if this is during unloading, as the amount of cargo decreases, the vehicle weight gradually decreases, and the suspension height will increase. At this point, the airbags are deflated to maintain a stable suspension height.

[0120] The suspension adjustment method based on working mode provided in this embodiment obtains vehicle information of a commercial vehicle and determines the corresponding suspension height for different working modes based on this information. It obtains the driving information and power-on parameters of the commercial vehicle. When the power-on parameters change from a non-powered state to a powered-on state, the target working mode is determined to be the initialization mode. When the power-on parameters are in a powered-on state and the commercial vehicle's speed is zero, or when the power-on parameters change from a powered-on state to a non-powered state and the commercial vehicle is in a standby state, the target working mode is determined to be the start-up control mode. When the solenoid valve information indicates that the commercial vehicle's solenoid valve is not activated, the method determines whether the change in the commercial vehicle's suspension height within a preset time period exceeds a preset change amount based on the suspension height information. If the change in the commercial vehicle's suspension height within the preset time period exceeds the preset change amount, the target working mode is determined to be the loading / unloading mode. When the commercial vehicle's speed is greater than zero, the target working mode is determined to be the steady-state driving mode. The suspension height is adjusted according to the different working modes. This method classifies the working modes of commercial vehicles into different categories based on their driving information and power-on parameters. This allows the commercial vehicles to adjust their suspension height according to different working modes, thereby keeping the vehicle in the optimal driving state, providing the driver with a good driving experience, and improving vehicle performance and comfort.

[0121] Figure 4 A flowchart illustrating the suspension adjustment method based on working mode provided in this application embodiment. Figure 3 This embodiment, based on Embodiment 1, provides a detailed description of determining the target operating mode of the commercial cargo vehicle when the operating mode is fault mode. For example... Figure 4 As shown, the method includes:

[0122] S301: Determine whether the solenoid valve is faulty based on the solenoid valve information. If the solenoid valve is faulty, determine the target operating mode as the first fault mode.

[0123] S302: Determine whether the height sensor is faulty based on the suspension height information. If the height sensor is faulty, determine the target operating mode as the second fault mode.

[0124] Understandably, there are two types of failure modes in commercial freight vehicles: one is a solenoid valve failure, known as the first failure mode, and the other is a failure of other components such as the height sensor, known as the second failure mode. These failure modes exist throughout the entire operation of the commercial freight vehicle. Real-time monitoring of the vehicle's driving information and components is crucial to promptly identify the cause and mode of the failure, and to make timely adjustments according to pre-set plans to prevent potential hazards.

[0125] S303: If the target operating mode is the first fault mode, then control the instrument panel of the commercial vehicle to display a first fault indicator, which is used to indicate that the solenoid valve is faulty.

[0126] Understandably, if the target operating mode is the first fault mode, that is, the solenoid valve is faulty, the suspension adjustment system cannot be used, and the suspension height cannot be adjusted. In this case, the instrument panel will be directly controlled to display the first fault indicator. For example, the first fault indicator can be two red lights on the instrument panel lighting up at the same time.

[0127] S304: If the target operating mode is the second fault mode, then the opening degree of the solenoid valve is controlled according to the fifth suspension height, and the instrument panel of the commercial vehicle is controlled to display the second fault indicator. The second fault indicator is used to indicate that the height sensor is faulty. The fifth suspension height is the previously calculated safe suspension height.

[0128] The fifth suspension height is the effective height corresponding to the mode before the fault. For example, if a fault occurs in the start control mode, the suspension height will be adjusted to the suspension height corresponding to the initialization mode, at which point the fifth suspension height will be the same as the second suspension height.

[0129] Understandably, if the target operating mode is the second fault mode, that is, if the height sensor or other components other than the solenoid valve malfunction, the electronic controller controls the opening of the solenoid valve to directly adjust the suspension height to the fifth suspension height, and controls the dashboard of the commercial vehicle to display the second fault indicator. For example, the second fault indicator can be a red light on the dashboard.

[0130] The suspension adjustment method based on operating mode provided in this embodiment determines whether a solenoid valve is faulty based on solenoid valve information. If the solenoid valve is faulty, the target operating mode is determined to be a first fault mode. It also determines whether a height sensor is faulty based on suspension height information. If the height sensor is faulty, the target operating mode is determined to be a second fault mode. If the target operating mode is the first fault mode, the instrument panel of the commercial vehicle is controlled to display a first fault indicator. If the target operating mode is the second fault mode, the opening of the solenoid valve is controlled according to the fifth suspension height, and the instrument panel of the commercial vehicle is controlled to display a second fault indicator. This method determines the fault mode of the commercial vehicle based on solenoid valve information and suspension height information, and selects to display a fault indicator or adjust the suspension height according to different fault modes, thereby improving driving safety and avoiding dangerous events.

[0131] Figure 5 A schematic diagram of the suspension adjustment device based on working mode provided in this application. Figure 5 As shown, the suspension adjustment device 400 based on working mode provided in this application includes:

[0132] The acquisition module 401 is used to acquire the driving information and power-on parameters of the commercial vehicle.

[0133] The determining module 402 is used to determine the target operating mode of the commercial vehicle based on the driving information and the power-on parameters, wherein different operating modes correspond to different suspension heights;

[0134] The processing module 403 is used to adjust the suspension height of the commercial vehicle according to the target operating mode and the target suspension height corresponding to the target operating mode.

[0135] Optionally, the acquisition module 401 is further configured to acquire vehicle information of the commercial vehicle, wherein the vehicle information is used to indicate the vehicle model, vehicle configuration information and suspension height corresponding to multiple working modes of the commercial vehicle.

[0136] The determining module 402 is further configured to determine, based on the vehicle information, the suspension height corresponding to the steady-state driving mode as the first suspension height, the suspension height corresponding to the initialization mode as the second suspension height, and the suspension height corresponding to the start control mode as the third suspension height;

[0137] The determining module 402 is further configured to, if a height modification instruction sent by the driver is received, determine a fourth suspension height according to the height modification instruction, and modify the suspension height corresponding to the start control mode from the third suspension height to the fourth suspension height, wherein the height modification instruction is used to indicate that the suspension height corresponding to the start control mode is modified.

[0138] Optionally, the device further includes: a judgment module 404.

[0139] The determining module 402 is further configured to determine the target working mode as the initialization mode when the power-on parameter changes from the non-power-on state to the power-on state;

[0140] The determining module 402 is further configured to determine the target working mode as the start-up control mode when the power-on parameter is in the powered-on state and the driving speed of the commercial vehicle is zero, or when the power-on parameter changes from the powered-on state to the unpowered state and the commercial vehicle is in the standby state.

[0141] The judgment module 404 is used to determine, based on the suspension height information, whether the change in the suspension height of the commercial vehicle within a preset time period exceeds a preset change amount when the solenoid valve information indicates that the solenoid valve of the commercial vehicle is not activated.

[0142] The determining module 402 is further configured to determine the target working mode as the loading and unloading mode if the change in the suspension height of the commercial vehicle exceeds a preset change amount within a preset time period.

[0143] The determining module 402 is further configured to determine the target operating mode as a steady-state driving mode when the driving speed of the commercial vehicle is greater than zero.

[0144] Optionally, the device further includes: a control module 405.

[0145] Control module 405 is used to control the solenoid valve to enter the inflation state when the target working mode is the initialization mode, so that the solenoid valve inflates the airbag until the suspension height reaches the second suspension height;

[0146] The control module 405 is also used to control the solenoid valve to enter the adjustment state when the target working mode is the start control mode, so that the solenoid valve inflates or deflates the airbag until the suspension height reaches the third suspension height.

[0147] The judgment module 404 is further configured to determine whether the driving speed of the commercial vehicle is greater than a preset speed when the target working mode is the steady-state driving mode, and when the driving speed of the commercial vehicle is greater than the preset speed, control the solenoid valve to enter the adjustment state so that the solenoid valve releases air into the airbag until the suspension height reaches the first suspension height, wherein the first suspension height is lower than the second suspension height.

[0148] Optionally, the acquisition module 401 is used to acquire the change in suspension height of the commercial vehicle in real time;

[0149] The processing module 403 is used to adjust the current suspension height through the solenoid valve according to the amount of suspension height change, so as to keep the suspension height of the commercial vehicle stable.

[0150] Optionally, the determining module 402 is used to determine whether the solenoid valve is faulty based on the solenoid valve information, and when the solenoid valve is faulty, to determine the target working mode as the first fault mode.

[0151] The determining module 402 is further configured to determine whether the height sensor is faulty based on the suspension height information, and when the height sensor is faulty, determine the target working mode as the second fault mode;

[0152] The processing module 403 is further configured to adjust the suspension height of the commercial vehicle according to the target operating mode and the target suspension height corresponding to the target operating mode, including:

[0153] The control module 405 is configured to control the instrument panel of the commercial vehicle to display a first fault indicator if the target working mode is the first fault mode. The first fault indicator is used to indicate that the solenoid valve is faulty.

[0154] The control module 405 is further configured to, if the target operating mode is the second fault mode, control the opening of the solenoid valve according to the fifth suspension height, and control the instrument panel of the commercial vehicle to display a second fault indicator, the second fault indicator being used to indicate that the height sensor is faulty and the fifth suspension height is the previously calculated safe suspension height.

[0155] Figure 6 A structural schematic diagram of the suspension adjustment device based on working mode provided in this application. Figure 6 As shown, this application provides a suspension adjustment device based on working mode. The suspension adjustment device 500 based on working mode includes: a receiver 501, a transmitter 502, a processor 503, and a memory 504.

[0156] Receiver 501 is used to receive instructions and data;

[0157] Transmitter 502 is used to send commands and data;

[0158] Memory 504 is used to store instructions executed by the computer;

[0159] Processor 503 is used to execute computer execution instructions stored in memory 504 to implement the various steps of the suspension adjustment method based on working mode in the above embodiments. For details, please refer to the relevant descriptions in the foregoing embodiments of the suspension adjustment method based on working mode.

[0160] Alternatively, the memory 504 can be either standalone or integrated with the processor 503.

[0161] When the memory 504 is set up independently, the electronic device also includes a bus for connecting the memory 504 and the processor 503.

[0162] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the suspension adjustment method based on the working mode as described above by the suspension adjustment device based on the working mode.

[0163] It will be understood by those skilled in the art that all or some of the steps, systems, or apparatuses disclosed above, and their functional modules / units, can be implemented as software, firmware, hardware, or suitable combinations thereof. In hardware implementations, the division between functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed collaboratively by several physical components. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit (ASIC). Such software may be distributed on a computer-readable medium, which may include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0164] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0165] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A suspension adjustment method based on working mode, characterized in that, The method is applied to a commercial cargo vehicle, which includes a frame, wheels, a solenoid valve, a height sensor, and an airbag. The solenoid valve is used to inflate and deflate the airbag, and the height sensor is used to collect suspension height information of the commercial cargo vehicle, wherein the suspension height is the relative distance between the frame and the wheels. Acquire driving information and power-on parameters of the commercial vehicle; the driving information is used to indicate the solenoid valve information, the suspension height information, and whether the commercial vehicle is in a driving state; the power-on parameters include: powered-on state and powered-off state. Based on the driving information and the power-on parameters, the target operating mode of the commercial vehicle is determined, wherein different operating modes correspond to different suspension heights; the operating modes include: initialization mode, start-up control mode, loading and unloading mode, and steady-state driving mode; Based on the target operating mode, the suspension height of the commercial vehicle is adjusted according to the target suspension height corresponding to the target operating mode. Determining the target operating mode of the commercial vehicle based on the driving information and the power-on parameters includes: When the power-on parameter changes from the non-power-on state to the power-on state, the target operating mode is determined to be the initialization mode; When the power-on parameter is in the powered-on state and the driving speed of the commercial vehicle is zero, or when the power-on parameter changes from the powered-on state to the unpowered state and the commercial vehicle is in standby state, the target working mode is determined to be the start-up control mode. When the solenoid valve information indicates that the solenoid valve of the commercial vehicle is not activated, the suspension height information is used to determine whether the change in the suspension height of the commercial vehicle within a preset time period exceeds a preset change amount. If the suspension height of the commercial vehicle changes by more than a preset amount within a preset time period, then the target working mode is determined to be the loading and unloading mode. When the speed of the commercial vehicle is greater than zero, the target operating mode is determined to be the steady-state driving mode.

2. The method according to claim 1, characterized in that, Before obtaining the driving status and power-on status of the commercial vehicle, the method further includes: Obtain the vehicle information of the commercial cargo vehicle, the vehicle information being used to indicate the vehicle model, vehicle configuration information, and suspension height corresponding to multiple operating modes of the commercial cargo vehicle; Based on the vehicle information, the suspension height corresponding to the steady-state driving mode is determined as the first suspension height, the suspension height corresponding to the initialization mode is determined as the second suspension height, and the suspension height corresponding to the start control mode is determined as the third suspension height. If a height modification command is received from the driver, the fourth suspension height is determined according to the height modification command, and the suspension height corresponding to the start control mode is modified from the third suspension height to the fourth suspension height. The height modification command is used to instruct the suspension height corresponding to the start control mode to be modified.

3. The method according to claim 2, characterized in that, The step of adjusting the suspension height of the commercial vehicle according to the target operating mode and the target suspension height corresponding to the target operating mode includes: When the target working mode is the initialization mode, the solenoid valve is controlled to enter the inflation state so that the solenoid valve inflates the airbag until the suspension height reaches the second suspension height; When the target working mode is the start control mode, the solenoid valve is controlled to enter the adjustment state so that the solenoid valve inflates or deflates the airbag until the suspension height reaches the third suspension height; When the target operating mode is the steady-state driving mode, it is determined whether the driving speed of the commercial vehicle is greater than the preset speed. When the driving speed of the commercial vehicle is greater than the preset speed, the solenoid valve is controlled to enter the adjustment state so that the solenoid valve releases air into the airbag until the suspension height reaches the first suspension height, wherein the first suspension height is lower than the second suspension height.

4. The method according to claim 1, characterized in that, If the target operating mode is the loading and unloading mode, then according to the target operating mode and the target suspension height corresponding to the target operating mode, the suspension height of the commercial vehicle is adjusted, including: Real-time acquisition of the suspension height change of the commercial vehicle; Based on the change in suspension height, the current suspension height is adjusted via the solenoid valve to keep the suspension height of the commercial vehicle stable.

5. The method according to claim 1, characterized in that, The operating mode further includes: a first fault mode and a second fault mode. Determining the target operating mode of the commercial vehicle based on the driving information and the power-on parameters includes: Based on the solenoid valve information, determine whether the solenoid valve is faulty; if the solenoid valve is faulty, determine the target operating mode as the first fault mode. Based on the suspension height information, determine whether the height sensor is faulty; if the height sensor is faulty, determine the target operating mode as the second fault mode. The step of adjusting the suspension height of the commercial vehicle according to the target operating mode and the target suspension height corresponding to the target operating mode includes: If the target operating mode is the first fault mode, then the instrument panel of the cargo vehicle is controlled to display a first fault indicator, which is used to indicate that the solenoid valve is faulty. If the target operating mode is the second fault mode, the opening degree of the solenoid valve is controlled according to the fifth suspension height, and the instrument panel of the commercial vehicle is controlled to display the second fault indicator. The second fault indicator is used to indicate that the height sensor is faulty. The fifth suspension height is the previously calculated safe suspension height.

6. A suspension adjustment device based on working mode, characterized in that, The device includes: The acquisition module is used to acquire the driving information and power-on parameters of the commercial vehicle; the driving information is used to indicate the solenoid valve information, the suspension height information, and whether the commercial vehicle is in a driving state; the power-on parameters include: powered-on state and powered-off state. The determination module is used to determine the target operating mode of the commercial vehicle based on the driving information and the power-on parameters, wherein different operating modes correspond to different suspension heights; the operating modes include: initialization mode, start-up control mode, loading and unloading mode, and steady-state driving mode; The processing module is used to adjust the suspension height of the commercial vehicle according to the target operating mode and the target suspension height corresponding to the target operating mode. The determining module is specifically used to determine the target working mode as the initialization mode when the power-on parameter changes from the non-power-on state to the power-on state; The determining module is specifically used to determine the target working mode as the start-up control mode when the power-on parameter is in the powered-on state and the driving speed of the commercial vehicle is zero, or when the power-on parameter changes from the powered-on state to the unpowered state and the commercial vehicle is in standby state. The judgment module is used to determine, based on the suspension height information, whether the change in the suspension height of the commercial vehicle within a preset time period exceeds a preset change amount when the solenoid valve information indicates that the solenoid valve of the commercial vehicle is not activated. The determining module is specifically used to determine the target working mode as the loading and unloading mode if the change in the suspension height of the commercial vehicle exceeds a preset amount within a preset time period. The determining module is specifically used to determine the target operating mode as the steady-state driving mode when the driving speed of the commercial vehicle is greater than zero.

7. The apparatus according to claim 6, characterized in that, The device further includes: The acquisition module is used to acquire the vehicle information of the commercial vehicle, and the vehicle information is used to indicate the vehicle model, vehicle configuration information and suspension height corresponding to multiple working modes of the commercial vehicle. The determining module is used to determine, based on the vehicle information, the suspension height corresponding to the steady-state driving mode as the first suspension height, the suspension height corresponding to the initialization mode as the second suspension height, and the suspension height corresponding to the start control mode as the third suspension height. The determining module is further configured to, if a height modification instruction sent by the driver is received, determine a fourth suspension height according to the height modification instruction, and modify the suspension height corresponding to the start control mode from the third suspension height to the fourth suspension height, wherein the height modification instruction is used to indicate that the suspension height corresponding to the start control mode is modified.

8. A suspension adjustment device based on working mode, characterized in that, include: Memory; processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the suspension adjustment method based on the working mode as described in any one of claims 1-5.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the suspension adjustment method based on any one of claims 1 to 5.

Images