Electronic control air suspension control method and system
By collecting real-time operating data of commercial vehicles and adjusting the parameters of the electronically controlled air suspension using preset control strategies, the problem of the existing system's inability to adjust accurately has been solved, improving the vehicle's stability and comfort under complex road conditions.
Patent Information
- Application Number
- CN202511828152.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2045-12-05
AI Technical Summary
Existing electronically controlled air suspension systems for commercial vehicles cannot accurately adjust according to the vehicle's current operating conditions, resulting in insufficient driving stability and comfort.
By collecting real-time vehicle operation data, including cruising distance, current speed, and road condition information, the parameters of the electronically controlled air suspension are adjusted using a preset control strategy to achieve adaptive height adjustment.
It improves the vehicle's driving stability and comfort under complex road conditions, and avoids the risk of sudden changes in vehicle posture and stability caused by misoperation or frequent switching of height mode.
Smart Images

Figure CN121403918A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle technology, and in particular to an electronically controlled air suspension control method and system. Background Technology
[0002] As the most recent technical standard for motor vehicle operation safety management, "GB7258-2017 - Technical Conditions for Motor Vehicle Operation Safety" came into effect on January 1, 2020. Its purpose is to restrict overloading and exceeding weight limits in such vehicles from the design and manufacturing stages, and to improve the ride comfort of these vehicles. The Electronic Controlled Air Suspension System (ECAS) mainly consists of an electronic control unit (ECU), remote control, height sensor, pressure sensor, solenoid valve, and related wiring harnesses. ECAS can ensure the integrity of fragile goods and improve driver comfort; during vehicle operation, it can automatically adjust the vehicle height to improve passability and reduce energy consumption by reducing wind resistance. Currently, most commercial vehicle ECAS systems are limited to adjusting vehicle height according to speed changes, lacking strong ability to identify the vehicle's current operating conditions and unable to make accurate and comprehensive judgments to provide appropriate adjustments.
[0003] Chinese patent CN202020586297.5 discloses an adaptive air suspension system and control method for commercial vehicles. The system comprises multiple airbag components and corresponding solenoid valves, and is coordinated by a central ECU control unit. While this patent proposes an adaptive control method for switching operating conditions, it essentially still adjusts the vehicle's posture based on linear parameters of vehicle speed, failing to automatically predict and adjust in a timely manner. Summary of the Invention
[0004] The purpose of this invention is to provide an electronically controlled air suspension control method. By collecting vehicle operating data in real time and adjusting the parameters of the electronically controlled air suspension based on a preset control strategy, the method improves the vehicle's driving stability and comfort under complex road conditions. The specific solution is as follows:
[0005] An electronically controlled air suspension control method, the method comprising the following steps:
[0006] S1: In response to user operation commands, initiate adaptive adjustment mode;
[0007] S2: Based on the adaptive adjustment mode, collect operational data; the operational data includes at least: cruising distance, current vehicle speed, and road condition information; the cruising distance is the following distance between the vehicle and the vehicle in front; the road condition information includes at least: bumpy road conditions, curved road conditions, and sloping road conditions.
[0008] S3: Based on the collected operating data, a preset control strategy is adopted to control the operation of the electronically controlled air suspension to adjust the vehicle height; wherein, the vehicle height is the distance between the center of the vehicle wheel and the bottom of the frame.
[0009] Optionally, before step S1, the method further includes:
[0010] When the vehicle is stationary or the vehicle speed is less than the first preset speed, the vehicle height mode is determined manually and used as the reference height mode for the adaptive adjustment mode during driving; wherein, the vehicle height mode includes at least: low height mode, mid height mode and high height mode.
[0011] When the vehicle speed is greater than or equal to the first preset speed, the manual mode for determining the vehicle height is disabled.
[0012] Optionally, in step S3, based on the collected operational data, a preset control strategy is adopted to control the operation of the electronically controlled air suspension to adjust the vehicle height; wherein, the vehicle height is the distance between the vehicle wheel center and the bottom of the frame, specifically including:
[0013] When the vehicle's cruising distance is less than or equal to the first distance, determine whether the current vehicle speed falls within the preset threshold speed range.
[0014] If the current vehicle speed falls within the first threshold speed range during acceleration and remains within the first preset time, then the current vehicle height will be adjusted to the vehicle height corresponding to the base height mode.
[0015] If the current vehicle speed falls within the second threshold speed range during acceleration and remains within the first preset time, the vehicle height mode will be switched to low height mode; wherein, the lower limit of the second threshold speed range is greater than the upper limit of the first threshold speed range.
[0016] Based on the low-height mode, the vehicle's current height is adjusted to the vehicle height corresponding to the low-height mode.
[0017] If the current vehicle speed falls within the second threshold speed range during acceleration, and the current vehicle speed changes from acceleration to deceleration, it is determined whether the current vehicle speed in the deceleration state falls within a preset callback threshold interval corresponding to the second threshold speed range; wherein, the preset callback threshold interval is preset based on the second threshold speed range, and the ratio between the upper limit of the preset callback threshold interval and the upper limit of the second threshold speed range is less than or equal to a preset ratio;
[0018] If the current vehicle speed falls within the preset callback threshold range and remains within the first preset time, the vehicle's low-height mode will be reset to the baseline height mode.
[0019] Optional, S3, specifically also includes:
[0020] When the vehicle's cruising distance is greater than the first distance, determine whether the current vehicle speed falls within the preset threshold speed range.
[0021] If the current vehicle speed falls within the first threshold speed range during acceleration and remains within the first preset time, then the current vehicle height will be adjusted to the vehicle height corresponding to the base height mode.
[0022] If the current vehicle speed falls within the second threshold speed range during acceleration and remains within the range for a first preset time, the vehicle height will be automatically adjusted to a preset height value; wherein, the preset height value is the difference between the low vehicle height in the low height mode and the adjustment value obtained based on a preset ratio of the low vehicle height.
[0023] If the current vehicle speed falls within the second threshold speed range during acceleration, and the current vehicle speed changes from acceleration to deceleration, it is determined whether the current vehicle speed in the deceleration state falls within a preset callback threshold interval corresponding to the second threshold speed range; wherein, the preset callback threshold interval is preset based on the second threshold speed range, and the ratio between the upper limit of the preset callback threshold interval and the upper limit of the second threshold speed range is less than or equal to a preset ratio;
[0024] If the current vehicle speed falls within the preset callback threshold range and remains within the first preset time, the vehicle's low-height mode will be reset to the vehicle height corresponding to the baseline height mode.
[0025] Optional, S3, specifically also includes:
[0026] If the road conditions ahead are either bumpy or winding, the current vehicle height mode will be adjusted to low height mode to adjust the vehicle's current height.
[0027] If the road conditions ahead are sloped and uphill with a gradient greater than or equal to the first gradient, the current vehicle height mode will be adjusted to high-position height mode.
[0028] Based on the high-position height mode, the vehicle's current height is adjusted to the vehicle height corresponding to the high-position height mode;
[0029] If the road conditions ahead are sloped and downhill with a gradient greater than or equal to the first gradient, the current vehicle height mode will be adjusted to low height mode.
[0030] Based on the low-height mode, the vehicle's current height is adjusted to the vehicle height corresponding to the low-height mode.
[0031] Optional, also includes:
[0032] When the work scene ahead is detected to overlap with the corresponding preset marked scene, the suspension memory height pre-configured based on the preset marked scene is retrieved.
[0033] Based on the suspension memory height, the vehicle's current height is adjusted to the suspension memory height.
[0034] An electronically controlled air suspension control system, the system comprising:
[0035] The trigger module is configured to activate the adaptive adjustment mode in response to user operation commands;
[0036] The data acquisition module is configured to collect operational data based on an adaptive adjustment mode. The operational data includes at least: cruising distance, current vehicle speed, airbag pressure, and road condition information. The cruising distance is the following distance between the vehicle and the vehicle in front. The road condition information includes at least: bumpy road conditions, curved road conditions, and sloping road conditions.
[0037] The processing module is configured to control the operation of the electronically controlled air suspension to adjust the vehicle height based on the collected operating data and a preset control strategy; wherein, the vehicle height is the distance between the center of the vehicle wheel and the bottom of the frame.
[0038] An electronic device includes: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; characterized in that the memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of the method.
[0039] A computer-readable storage medium storing a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of the method described herein.
[0040] A simulation platform, comprising:
[0041] An electronic device for implementing the steps of the method;
[0042] A processor that runs a program, and when the program runs, it executes the steps of the method from data output by the electronic device.
[0043] A storage medium for storing a program that, when run, executes the steps of the method on data output from an electronic device.
[0044] The above solution achieves the following beneficial technical effects:
[0045] This application provides an electronically controlled air suspension control method and system, which can activate an adaptive adjustment mode according to the user's operation command, and based on the adaptive adjustment mode, improve the vehicle's driving stability and comfort under complex road conditions by collecting vehicle operation data in real time and adopting a preset control strategy and adjusting the parameters of the electronically controlled air suspension. Attached Figure Description
[0046] Figure 1 This is a flowchart of an electronically controlled air suspension control method. Detailed Implementation
[0047] To make the purpose, technical solution, and advantages of this application clearer, the following will be described in conjunction with the appendix. Figure 1 This application will be described in further detail. It is obvious that the described embodiments are merely some, not all, of the embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments described herein without inventive effort are within the scope of protection of this application.
[0048] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.
[0049] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0050] It should be understood that although the terms first, second, third, etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, first may also be referred to as second without departing from the scope of the embodiments of this application, and similarly, second may also be referred to as first.
[0051] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”
[0052] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.
[0053] It should be noted that any symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.
[0054] The optional embodiments of this application are described in detail below with reference to the accompanying drawings.
[0055] Figure 1 The method for controlling an electronically controlled air suspension, as shown, includes the following steps:
[0056] S1: In response to user operation commands, initiate adaptive adjustment mode;
[0057] S2: Based on the adaptive adjustment mode, collect operational data; the operational data includes at least: cruising distance, current vehicle speed, and road condition information; the cruising distance is the following distance between the vehicle and the vehicle in front; the road condition information includes at least: bumpy road conditions, curved road conditions, and sloping road conditions.
[0058] S3: Based on the collected operating data, a preset control strategy is adopted to control the operation of the electronically controlled air suspension to adjust the vehicle height; wherein, the vehicle height is the distance between the center of the vehicle wheel and the bottom of the frame.
[0059] Specifically, in this embodiment, an adaptive adjustment mode can be activated according to the user's operation command. Based on the adaptive adjustment mode, the parameters of the electronically controlled air suspension (such as airbag pressure) can be adjusted in real time by collecting vehicle operation data in real time and adopting a preset control strategy, thereby improving the vehicle's driving stability and comfort under complex road conditions.
[0060] In one specific embodiment, before step S1, the method further includes:
[0061] When the vehicle is stationary or the vehicle speed is less than the first preset speed, the vehicle height mode is determined manually and used as the reference height mode for the adaptive adjustment mode during driving; wherein, the vehicle height mode includes at least: low height mode, mid height mode and high height mode.
[0062] When the vehicle speed is greater than or equal to the first preset speed, the manual mode for determining the vehicle height is disabled.
[0063] Specifically, this embodiment allows manual height setting when the vehicle is stationary or traveling at speeds below 5 km / h, but prohibits manual height setting at high speeds. This ensures the driver's personalized configuration rights for the baseline height mode, enabling users to anticipate usage needs based on different application scenarios (such as loading and unloading, complex road conditions). In safe scenarios, users can accurately select low, medium, or high-position modes as the baseline for adaptive adjustment, ensuring the height matches the actual usage scenario. Furthermore, the restriction on manual intervention at high speeds avoids sudden changes in vehicle posture caused by accidental operation or frequent switching of height modes during driving, preventing stability risks arising from conflicts between suspension adjustment and high-speed driving conditions. Simultaneously, it provides a precise baseline for subsequent adaptive adjustment, making dynamic adjustment more accurate.
[0064] For example, when the vehicle is stationary or traveling at a speed less than 5 km / h, the driver can manually adjust the vehicle height mode.
[0065] In one specific embodiment, step S3 involves using a preset control strategy based on the collected operational data to control the electronically controlled air suspension to adjust the vehicle height; wherein, the vehicle height is the distance between the vehicle wheel center and the bottom of the frame, specifically including:
[0066] When the vehicle's cruising distance is less than or equal to the first distance, determine whether the current vehicle speed falls within the preset threshold speed range.
[0067] If the current vehicle speed falls within the first threshold speed range during acceleration and remains within the first preset time, then the current vehicle height will be adjusted to the vehicle height corresponding to the base height mode.
[0068] If the current vehicle speed falls within the second threshold speed range during acceleration and remains within the first preset time, the vehicle height mode will be switched to low height mode; wherein, the lower limit of the second threshold speed range is greater than the upper limit of the first threshold speed range.
[0069] Based on the low-height mode, the vehicle's current height is adjusted to the vehicle height corresponding to the low-height mode.
[0070] If the current vehicle speed falls within the second threshold speed range during acceleration, and the current vehicle speed changes from acceleration to deceleration, it is determined whether the current vehicle speed in the deceleration state falls within a preset callback threshold interval corresponding to the second threshold speed range; wherein, the preset callback threshold interval is preset based on the second threshold speed range, and the ratio between the upper limit of the preset callback threshold interval and the upper limit of the second threshold speed range is less than or equal to a preset ratio;
[0071] If the current vehicle speed falls within the preset callback threshold range and remains within the first preset time, the vehicle's low-height mode will be reset to the baseline height mode.
[0072] Specifically, in this embodiment, the vehicle's current height is adjusted to the corresponding height of the reference height mode based on the current cruising distance, current speed, and duration. This avoids frequent misadjustments caused by instantaneous speed fluctuations, ensuring vehicle stability and anchoring the suspension height to the driver's preset reference height mode. This provides a precise basis for subsequent high-speed switching to low-position mode or matching complex road conditions. If the current speed falls within the second threshold speed range during acceleration and remains within the first preset time, the vehicle height mode is switched to low-position height mode, effectively reducing wind resistance and improving stability and efficiency when following other vehicles at high speeds. For energy efficiency, if the current vehicle speed falls within the preset callback threshold range and remains within the first preset time, the vehicle's low-position height mode will be reset to the base height mode. This provides sufficient buffer space for the vehicle's posture after high-speed deceleration, preventing frequent height switching due to the callback threshold being too close (e.g., 68km / h) or too far (e.g., 50km / h) causing the vehicle to be too low and affecting passability. It also avoids scrapes caused by the vehicle being too low. Furthermore, by limiting the ratio between the threshold range and the second threshold speed range, it ensures that the reset timing is appropriate and will not be accidentally triggered due to excessively rapid deceleration or instantaneous fluctuations. This also continues the energy-saving and stability advantages of switching to low-position mode at close-range high speeds.
[0073] For example, when the vehicle is in motion and the cruising distance is less than 50m, the vehicle speed is in an acceleration state. When the speed rises to the range of 28km / h-32km / h and lasts for 60 seconds, the current vehicle height is adjusted to the vehicle height corresponding to the base height mode. If the vehicle speed continues to accelerate, and when the speed rises from 70km / h to the range of 68km / h-72km / h and lasts for 60 seconds, the current vehicle height mode is switched to the low height mode. If the current vehicle speed in the acceleration state falls to the range of 68km / h-72km / h, and the current vehicle speed changes from the acceleration state to the deceleration state, if the current vehicle speed decreases from 70km / h to 60km / h, falling into the range of 58km / h-62km / h and lasts for 60 seconds, the vehicle low height mode is reset to the base height mode.
[0074] In one specific embodiment, S3 further includes:
[0075] When the vehicle's cruising distance is greater than the first distance, determine whether the current vehicle speed falls within the preset threshold speed range.
[0076] If the current vehicle speed falls within the first threshold speed range during acceleration and remains within the first preset time, then the current vehicle height will be adjusted to the vehicle height corresponding to the base height mode.
[0077] If the current vehicle speed falls within the second threshold speed range during acceleration and remains within the range for a first preset time, the vehicle height will be automatically adjusted to a preset height value; wherein, the preset height value is the difference between the low vehicle height in the low height mode and the adjustment value obtained based on a preset ratio of the low vehicle height.
[0078] If the current vehicle speed falls within the second threshold speed range during acceleration, and the current vehicle speed changes from acceleration to deceleration, it is determined whether the current vehicle speed in the deceleration state falls within a preset callback threshold interval corresponding to the second threshold speed range; wherein, the preset callback threshold interval is preset based on the second threshold speed range, and the ratio between the upper limit of the preset callback threshold interval and the upper limit of the second threshold speed range is less than or equal to a preset ratio;
[0079] If the current vehicle speed falls within the preset callback threshold range and remains within the first preset time, the vehicle's low-height mode will be reset to the vehicle height corresponding to the baseline height mode.
[0080] Specifically, if the vehicle speed increases to the first threshold range during acceleration, the vehicle's current height is adjusted back to the baseline height to ensure body support and attitude stability at that speed. When the vehicle speed falls into the second threshold speed range during acceleration and remains there for a first preset time, the vehicle height is automatically adjusted to a preset height value. The preset height value is the difference between the low-position vehicle height in low-position height mode and the adjustment value obtained based on a preset ratio of the low-position vehicle height. The advantage of this design is that it can minimize wind resistance to improve high-speed cruising economy. Furthermore, if the vehicle speed falls into the second threshold speed range during acceleration and the current speed changes from acceleration to deceleration, and if the current speed falls within the preset callback threshold range corresponding to the second threshold speed range, the vehicle's low-position height mode is reset to the vehicle height corresponding to the baseline height mode. This avoids the vehicle being too low, which could affect the passability in subsequent deceleration scenarios (such as road undulations or entering service areas). The proportional setting of the callback threshold ensures that the reset timing is appropriate and effectively filters out erroneous adjustments caused by instantaneous speed fluctuations.
[0081] For example, when the vehicle is in motion and the cruising distance is greater than 50m, the vehicle speed is increasing. If the speed rises to the range of 28km / h-32km / h and lasts for 60 seconds, the vehicle's current height will be adjusted to the vehicle height corresponding to the base height mode. If the vehicle speed continues to accelerate, and when the speed rises from 70km / h to the range of 68km / h-72km / h and lasts for 60 seconds, the vehicle height will be automatically adjusted to the preset height value. For example, the preset height value = the low-position vehicle height of the low-position height mode (170mm) - the adjustment value (30mm) = 140mm. If the current vehicle speed drops from 70km / h to 60km / h, falling into the range of 58km / h-62km / h, and lasts for 60 seconds, the vehicle's low-position height mode will be reset to the base height mode.
[0082] In one specific embodiment, S3 further includes:
[0083] If the road conditions ahead are either bumpy or winding, the current vehicle height mode will be adjusted to low height mode to adjust the vehicle's current height.
[0084] If the road conditions ahead are sloped and uphill with a gradient greater than or equal to the first gradient, the current vehicle height mode will be adjusted to high-position height mode.
[0085] Based on the high-position height mode, the vehicle's current height is adjusted to the vehicle height corresponding to the high-position height mode;
[0086] If the road conditions ahead are sloped and downhill with a gradient greater than or equal to the first gradient, the current vehicle height mode will be adjusted to low height mode.
[0087] Based on the low-height mode, the vehicle's current height is adjusted to the vehicle height corresponding to the low-height mode.
[0088] Specifically, in this embodiment, when the road ahead is bumpy or winding, the vehicle switches to a low-height mode. The advantage of this design is that it can lower the vehicle's center of gravity, enhance suspension support, and reduce the risk of vehicle swaying and cornering caused by bumps. When the road ahead is an uphill section with a gradient greater than or equal to the first gradient, the vehicle switches to a high-height mode, which can increase the chassis ground clearance and avoid scraping or power loss caused by the front of the vehicle sinking when going uphill, thus ensuring passability. When going downhill, the vehicle switches to a low-height mode, which lowers the center of gravity to enhance vehicle stability during braking and prevents rear wheel overload caused by the rearward shift of the center of gravity. Overall, this improves safety, passability, and driving stability in complex road conditions.
[0089] In one specific embodiment, this application further includes:
[0090] When the work scene ahead is detected to overlap with the corresponding preset marked scene, the suspension memory height pre-configured based on the preset marked scene is retrieved.
[0091] Based on the suspension memory height, the vehicle's current height is adjusted to the suspension memory height.
[0092] It is understood that the preset marked scenarios described in this embodiment are scenarios pre-marked based on the environmental characteristics of the location, and a corresponding suspension memory height is pre-configured for each preset marked scenario. When the system recognizes that the work scene ahead overlaps with one of the preset marked scenarios, it can pre-obtain the corresponding suspension memory height based on the corresponding preset marked scenario. Thus, when the navigation shows that it is about to enter the tagged preset marked scenario, it starts adjusting the suspension height in advance, so that it is adjusted to the correct position when the vehicle arrives. This avoids the driver repeatedly manually adjusting the height, reducing the risk of reduced loading and unloading efficiency or chassis scraping due to untimely operation. At the same time, it can also start the height adjustment in advance through navigation prediction, ensuring that the suspension can accurately match the target height when the vehicle arrives at the preset marked scenario, without waiting for on-site adjustment, significantly improving the efficiency of loading and unloading operations, and indirectly improving the user experience.
[0093] On the other hand, this application provides an electronic device, 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;
[0094] The memory stores a computer program that, when executed by a processor, causes the processor to perform the steps of the method.
[0095] On the other hand, this application provides a computer-readable storage medium having a computer program / instructions stored thereon, which, when executed by a processor, implement the steps of the method.
[0096] A simulation platform, comprising:
[0097] An electronic device for implementing the steps of the method;
[0098] A processor that runs a program, which, when running, executes the steps of the method claimed in the electronic device from data output by the program.
[0099] A storage medium for storing a program that, when run, executes the steps of the method on data output from an electronic device.
[0100] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0101] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.
Claims
1. A method for controlling an electronically controlled air suspension, characterized in that, The method includes the following steps: S1: In response to user operation commands, activate adaptive adjustment mode; S2: Based on the adaptive adjustment mode, collect operational data; the operational data includes at least: cruising distance, current vehicle speed, and road condition information; the cruising distance is the following distance between the vehicle and the vehicle in front; the road condition information includes at least: bumpy road conditions, curved road conditions, and sloping road conditions. S3: Based on the collected operating data, a preset control strategy is adopted to control the operation of the electronically controlled air suspension to adjust the vehicle height; wherein, the vehicle height is the distance between the center of the vehicle wheel and the bottom of the frame.
2. The method according to claim 1, characterized in that, Before step S1, the method further includes: When the vehicle is stationary or the vehicle speed is less than the first preset speed, the vehicle height mode is determined manually and used as the reference height mode for the adaptive adjustment mode during driving; wherein, the vehicle height mode includes at least: low height mode, mid height mode and high height mode. When the vehicle speed is greater than or equal to the first preset speed, the manual mode for determining the vehicle height is disabled.
3. The method according to claim 2, characterized in that, Step S3: Based on the collected operational data, a preset control strategy is adopted to control the electronically controlled air suspension to adjust the vehicle height; wherein, the vehicle height is the distance between the vehicle wheel center and the bottom of the frame, specifically including: When the vehicle's cruising distance is less than or equal to the first distance, determine whether the current vehicle speed falls within the preset threshold speed range. If the current vehicle speed falls within the first threshold speed range during acceleration and remains within the first preset time, then the current vehicle height will be adjusted to the vehicle height corresponding to the base height mode. If the current vehicle speed falls within the second threshold speed range during acceleration and remains within the first preset time, the vehicle height mode will be switched to low height mode; wherein, the lower limit of the second threshold speed range is greater than the upper limit of the first threshold speed range. Based on the low-height mode, the vehicle's current height is adjusted to the vehicle height corresponding to the low-height mode. If the current vehicle speed falls within the second threshold speed range during acceleration, and the current vehicle speed changes from acceleration to deceleration, it is determined whether the current vehicle speed in the deceleration state falls within a preset callback threshold interval corresponding to the second threshold speed range; wherein, the preset callback threshold interval is preset based on the second threshold speed range, and the ratio between the upper limit of the preset callback threshold interval and the upper limit of the second threshold speed range is less than or equal to a preset ratio; If the current vehicle speed falls within the preset callback threshold range and remains within the first preset time, the vehicle's low-height mode will be reset to the baseline height mode.
4. The method according to claim 3, characterized in that, S3, specifically includes: When the vehicle's cruising distance is greater than the first distance, determine whether the current vehicle speed falls within the preset threshold speed range. If the current vehicle speed falls within the first threshold speed range during acceleration and remains within the first preset time, then the current vehicle height will be adjusted to the vehicle height corresponding to the base height mode. If the current vehicle speed falls within the second threshold speed range during acceleration and remains within the range for a first preset time, the vehicle height will be automatically adjusted to a preset height value; wherein, the preset height value is the difference between the low vehicle height in the low height mode and the adjustment value obtained based on a preset ratio of the low vehicle height. If the current vehicle speed falls within the second threshold speed range during acceleration, and the current vehicle speed changes from acceleration to deceleration, it is determined whether the current vehicle speed in the deceleration state falls within a preset callback threshold interval corresponding to the second threshold speed range; wherein, the preset callback threshold interval is preset based on the second threshold speed range, and the ratio between the upper limit of the preset callback threshold interval and the upper limit of the second threshold speed range is less than or equal to a preset ratio; If the current vehicle speed falls within the preset callback threshold range and remains within the first preset time, the vehicle's low-height mode will be reset to the vehicle height corresponding to the baseline height mode.
5. The method according to any one of claims 1-4, characterized in that, S3, specifically includes: If the road conditions ahead are either bumpy or winding, the current vehicle height mode will be adjusted to low height mode to adjust the vehicle's current height. If the road conditions ahead are sloped and uphill with a gradient greater than or equal to the first gradient, the current vehicle height mode will be adjusted to high-position height mode. Based on the high-position height mode, the vehicle's current height is adjusted to the vehicle height corresponding to the high-position height mode; If the road conditions ahead are sloped and downhill with a gradient greater than or equal to the first gradient, the current vehicle height mode will be adjusted to low height mode. Based on the low-height mode, the vehicle's current height is adjusted to the vehicle height corresponding to the low-height mode.
6. The method according to claim 5, characterized in that, Also includes: When the work scene ahead is detected to overlap with the corresponding preset marked scene, the suspension memory height pre-configured based on the preset marked scene is retrieved. Based on the suspension memory height, the vehicle's current height is adjusted to the suspension memory height.
7. A control system for an electronically controlled air suspension, characterized in that, The system includes: The trigger module is configured to activate the adaptive adjustment mode in response to user operation commands; The data acquisition module is configured to collect operational data based on an adaptive adjustment mode. The operational data includes at least: cruising distance, current vehicle speed, airbag pressure, and road condition information. The cruising distance is the following distance between the vehicle and the vehicle in front. The road condition information includes at least: bumpy road conditions, curved road conditions, and sloping road conditions. The processing module is configured to control the operation of the electronically controlled air suspension to adjust the vehicle height based on the collected operating data and a preset control strategy; wherein, the vehicle height is the distance between the center of the vehicle wheel and the bottom of the frame.
8. An electronic device, comprising: The system comprises a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; characterized in that the memory stores a computer program, which, when executed by the processor, causes the processor to perform the steps of the method described in any one of claims 1-6.
9. A computer-readable storage medium, characterized in that, The device stores a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of the method as described in any one of claims 1 to 6.
10. A simulation platform, comprising: An electronic device for implementing the steps of the method according to any one of claims 1 to 6; A processor that runs a program that, when the program is running, performs the steps of the method according to any one of claims 1 to 6 from data output by an electronic device. A storage medium for storing a program that, when run, performs the steps of the method according to any one of claims 1 to 6 on data output from an electronic device.
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