Rain curtain height self-adaptive adjusting system and method

Abstract

The invention discloses a rain curtain height self-adaptive adjusting system and method, and the system comprises a road surface sensing sensor which is disposed at the front part of a vehicle chassis, and is used for detecting the elevation and fluctuation information of a front road surface in real time; the vehicle-mounted dynamic parameter acquisition module comprises a suspension height sensor, a vehicle speed sensor and an acceleration sensor and is used for acquiring vehicle load, vehicle speed and acceleration data; the intelligent control unit is connected with the road surface sensing sensor and the vehicle-mounted dynamic parameter acquisition module and is configured to generate a rain curtain target height instruction based on a multi-source data fusion algorithm; and the execution mechanism comprises an electric push rod or a hydraulic actuator, is connected with the rain curtain through a guide rail mechanism and is used for driving the rain curtain to vertically lift according to the target height instruction. The vehicle load, the vehicle speed and the road surface fluctuation condition are accurately sensed in real time through the sensor, and then dynamic adjustment of the height of the rain curtain is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of rain curtain adjustment, and particularly relates to a rain curtain height adaptive adjustment system and method. Background Art

[0002] For the safety of traffic participants, the country has formulated relevant standards and regulations for anti-spray systems. The standard aims to effectively reduce the potential hazards caused by splashes to other road users and the surrounding environment during vehicle driving by standardizing the performance of anti-spray systems. Among them, the rain curtain can effectively block the splashing rain from generating water mist jets and prevent the vision of the driver of this vehicle and other traffic participants from being affected, thus ensuring the safety of traffic participants. However, most of the rain curtains in traditional anti-spray systems adopt a fixed height design, and this design shows obvious limitations when facing complex and changeable working conditions.

[0003] For example, when the vehicle is in the unloaded and fully loaded states, the height difference of the vehicle suspension is obvious, and the fixed-height rain curtain cannot automatically adjust the ground clearance, which may cause the ground clearance to exceed the regulations of the standard and regulations when the vehicle is unloaded, and the ground clearance may be too low when the vehicle is fully loaded, which may cause the rain curtain to rub against the ground, damaging the rain curtain device or even the entire anti-spray system. In addition, when driving on a bumpy road, the up and down movement of the vehicle will also greatly reduce the anti-spray effect of the fixed-height rain curtain and it is difficult to meet the safety requirements in actual use. In addition, when the vehicle is driving on a flat road condition, in good weather, and at high speed, the fixed-height rain curtain will increase the wind resistance of the vehicle, thus increasing the energy consumption of the whole vehicle.

[0004] Most of the existing rain curtains adopt a fixed height or indirectly adjust the rain curtain height by manually adjusting the mudguard:

[0005] For the fixed-height rain curtain, its ground clearance cannot be adjusted and it always remains on the component to which it is installed under different working conditions. With different road conditions, the ground clearance of the rain curtain is also different.

[0006] For the manually adjustable mudguard, such as the patent number "Mudguard Assembly and Vehicle", it can indirectly adjust the ground clearance of the rain curtain installed below it by manually adjusting the position of the mudguard. This device requires the driver to judge the road condition based on experience and manually adjust the mudguard before driving according to the upcoming road section, so as to change the ground clearance of the mudguard and the rain curtain. This method is not only inconvenient to operate, but also because the road conditions of a specific section are uncertain at different times, and the position of the adjusted mudguard and rain curtain may be more unreasonable due to the driver's lack of experience, resulting in more serious above-mentioned technical problems and more dangerous driving. Summary of the Invention

[0007] The object of the present invention is to provide a rain curtain height adaptive adjustment system and method, in order to solve the technical problems existing in the background art.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] A rain curtain height adaptive adjustment system, comprising:

[0010] A road surface perception sensor, installed at the front part of the vehicle chassis, for detecting the elevation and undulation information of the front road surface in real time;

[0011] A vehicle-mounted dynamic parameter acquisition module, including a suspension height sensor, a vehicle speed sensor and an acceleration sensor, for obtaining vehicle load, vehicle speed and acceleration data;

[0012] An intelligent control unit, connected to the road surface perception sensor and the vehicle-mounted dynamic parameter acquisition module, configured to generate a rain curtain target height command based on a multi-source data fusion algorithm;

[0013] An actuator, including an electric push rod or a hydraulic actuator, connected to the rain curtain through a guide rail mechanism, for driving the rain curtain to vertically lift and lower according to the target height command.

[0014] In some embodiments, a serrated guiding structure is provided at the bottom of the rain curtain, and a pressure sensor is embedded therein. The pressure sensor is communicatively connected to the intelligent control unit for real-time monitoring of the ground contact pressure and triggering an emergency lift command.

[0015] In some embodiments, the intelligent control unit is configured to perform the following steps:

[0016] Collect road surface elevation, vehicle speed, suspension height and acceleration data;

[0017] Calculate the basic height according to the load state, and dynamically compensate the height value in combination with the vehicle speed;

[0018] Calculate the target height;

[0019] Detect the undulation of the front road surface and adjust the rain curtain height in advance based on the target height;

[0020] Drive the actuator through closed-loop control, and trigger an emergency lift based on the feedback of the pressure sensor.

[0021] In some embodiments, the multi-source data fusion algorithm is a Kalman filter algorithm, which is used to eliminate noise and fuse the road surface elevation, suspension height and vehicle speed data, and output the rain curtain target height.

[0022] In some embodiments, the intelligent control unit is configured to distinguish bumpy, high-speed and ramp conditions according to acceleration and vehicle speed data, and dynamically allocate adjustment weights to optimize the target height calculation.

[0023] In some embodiments, the emergency lifting instruction has the highest priority. When triggered, the actuator forcibly interrupts the current instruction and lifts the rain curtain to a preset safe height.

[0024] In some embodiments, the calculation formula for the dynamic compensation height value is: ΔH = 0.2×(v / 100)², where v is the real-time vehicle speed. When the vehicle speed ≥ 80 km / h, ΔH is limited to the maximum value; the target height = the base height ± ΔH.

[0025] This embodiment also provides a method for adaptively adjusting the height of the rain curtain, including the following steps:

[0026] Real-time detect the elevation and undulation information of the road surface ahead through a road surface perception sensor;

[0027] Obtain vehicle load, vehicle speed, and acceleration data through an on-vehicle dynamic parameter acquisition module;

[0028] Use the Kalman filter algorithm to fuse the acquired data and calculate the target height of the rain curtain;

[0029] Adjust the target height according to the vehicle speed dynamic compensation formula, and combine with the road surface undulation ahead to predict the lifting action;

[0030] Drive the actuator to adjust the rain curtain to the target height, and monitor the risk of touching the ground in real time to trigger an emergency lift.

[0031] In some embodiments, the calculation steps of the base height specifically include:

[0032] Map the vehicle load status according to the suspension height sensor data to generate a static reference height H_base;

[0033] Based on the ground clearance range under unloaded and fully loaded states specified in the standard regulations, dynamically correct H_base to ensure that H_base meets the lower and upper limit constraints of the regulations.

[0034] The beneficial effects that the rain curtain height adaptive adjustment system and method disclosed in this application may bring include but are not limited to:

[0035] 1. Significantly improve the anti-splash performance and driving safety

[0036] By real-time sensing the road surface undulation, vehicle load, and vehicle speed, dynamically adjust the ground clearance of the rain curtain to ensure that it is always at the optimal anti-splash height. For example, lift the rain curtain in advance on a bumpy road to avoid damage caused by touching the ground; optimize the height during high-speed driving to reduce water mist spraying. Tests show that in a heavy rain scenario, the water mist spraying range is reduced by 65%, and the visibility of the rear vehicle is improved by 70%, greatly reducing the risk of traffic accidents caused by blocked vision.

[0037] 2. Effectively reduce vehicle energy consumption

[0038] Adopt a dynamic compensation algorithm (such as ΔH = 0.2×(v / 100)^2), automatically lift the rain curtain when the vehicle speed ≥ 80 km / h, and reduce the frontal area. The measured data shows that when driving at high speed (100 km / h), the drag coefficient is reduced by 18%, and the overall vehicle energy consumption is reduced by 9.5%, significantly improving the fuel economy or the cruising range of electric vehicles.

[0039] 3. Fully automated adjustment, improving operation convenience and reliability

[0040] Abandon the manual adjustment mode that relies on the driver's experience, and achieve full-automatic decision-making through multi-sensor fusion (lidar, suspension height sensor, etc.) and intelligent control unit. Even in the face of sudden road conditions (such as suddenly appearing potholes), the system can respond and adjust the rain curtain height within 0.5 seconds, avoiding adjustment lag or errors caused by human misjudgment.

[0041] 4. Enhance system robustness and mechanical safety

[0042] Introduce a safety redundancy mechanism: pressure sensors are embedded at the bottom of the rain curtain. When the detected ground contact pressure ≥ 50 N, an emergency lift command is immediately triggered to drive the rain curtain to a safe height (≥ 300 mm). Combined with closed-loop control (the encoder real-time feedback position error ≤ 2 mm), ensure the adjustment accuracy. The reliability test shows that the success rate of emergency lift under continuous bumpy conditions reaches 100%, and the risk of mechanical damage approaches zero.

[0043] 5. Ensure regulatory compliance

[0044] The dynamic adjustment algorithm ensures that the ground clearance of the rain curtain always meets the national standards (such as the range of 250 - 350 mm specified in GB 11567-2017), avoiding the problems of excessive no-load clearance or full-load ground contact caused by static design, and reducing legal risks and recall costs.

[0045] 6. Extend the service life of the device and reduce maintenance costs

[0046] Through intelligent prediction and adaptive adjustment, reduce the unnecessary friction between the rain curtain and the ground (such as maintaining the standard height on flat roads and lifting in advance on bumpy roads). The material is selected as wear-resistant TPU composite material, combined with the lubrication maintenance cycle (every 5000 km), which greatly extends the service life of the rain curtain and the actuator, and the operation and maintenance cost is reduced by more than 30%.

[0047] 7. Wide applicability and expandability

[0048] The modular design supports quick adaptation to a variety of vehicle models (such as trucks, buses, and special vehicles), and the control algorithm can be optimized through software upgrades. For example, a logistics fleet can remotely monitor the status of the rain curtain to achieve predictive maintenance; a fire truck can customize impact-resistant rain curtain materials (such as Kevlar fiber) to adapt to extreme operating environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 is a schematic diagram of the architecture layer of the system of the present application;

[0050] Figure 2 is a schematic diagram of the system of the present application;

[0051] Figure 3 is a schematic diagram of the actuator of the system of the present application;

[0052] Figure 4 is a flowchart of the method of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0053] In order to make the objectives, technical solutions, and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0054] On the contrary, the present application covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of the present application defined by the claims. Further, in order to enable the public to have a better understanding of the present application, some specific details are described in detail in the following detailed description of the present application. Those skilled in the art can fully understand the present application without the description of these details.

[0055] As Figures 1-4 shown, a rain curtain height adaptive adjustment system includes:

[0056] A road surface perception sensor 10 is installed at the front of the vehicle chassis. The road surface perception sensor 10 includes a road condition sensor 3 and a weather sensor 1, which are respectively used to detect the elevation and undulation information of the front road surface in real time (such as rain, potholes, speed bumps, etc.); the road condition sensor 3 can be a lidar;

[0057] A vehicle-mounted dynamic parameter acquisition module 20 includes a suspension height sensor, a vehicle speed sensor, and an acceleration sensor, and is used to obtain vehicle load, vehicle speed, and acceleration data;

[0058] An intelligent control unit 30 is connected to the road surface perception sensor 10 and the vehicle-mounted dynamic parameter acquisition module 20, and is configured to generate a rain curtain target height command based on a multi-source data fusion algorithm;

[0059] The actuator 40, including an electric push rod or a hydraulic actuator, is connected to the rain curtain 5 through a guide rail mechanism and is used to drive the rain curtain to vertically lift and lower according to the target height instruction.

[0060] In some embodiments, a serrated guide structure is provided at the bottom of the rain curtain, and a pressure sensor is embedded therein. The pressure sensor is communicatively connected to the intelligent control unit 30 and is used to monitor the ground contact pressure in real time and trigger an emergency lift instruction.

[0061] Flexible rain curtain: Fixed below the telescopic rod, it can move up and down according to the signal received by the actuator from the intelligent control unit.

[0062] The entire actuator adopts a mechanical solution of an electric push rod or a hydraulic actuator 7 to drive the rain curtain, ensuring the accuracy and stability of adjustment, including:

[0063] Installation base 6: Fixed on the vehicle chassis or fender bracket and rigidly connected to the vehicle body.

[0064] Electric push rod or hydraulic actuator: After the intelligent control unit receives the signals from each sensing sensor, it calculates whether the rain curtain rises or falls, and converts it into a signal for the electric push rod or hydraulic actuator to rise or fall. After receiving the signal, the electric push rod or hydraulic actuator performs corresponding actions and drives the telescopic rod fixing the rain curtain to move up and down along the direction of the guide rail 8 to change the height of the rain curtain.

[0065] In some embodiments, the intelligent control unit 30 is configured to perform the following steps:

[0066] Collect road surface elevation, vehicle speed, suspension height and acceleration data;

[0067] Calculate the base height according to the load state and dynamically compensate the height value in combination with the vehicle speed;

[0068] Calculate the target height;

[0069] Detect the undulation of the road surface ahead and adjust the height of the rain curtain in advance based on the target height;

[0070] Drive the actuator 40 through closed-loop control and trigger an emergency lift based on the feedback of the pressure sensor.

[0071] In some embodiments, the multi-source data fusion algorithm is a Kalman filter algorithm, which is used to eliminate noise and fuse the road surface elevation, suspension height and vehicle speed data, and output the target height of the rain curtain.

[0072] In some embodiments, the intelligent control unit 30 is configured to distinguish bumpy, high-speed and ramp conditions according to acceleration and vehicle speed data, and dynamically allocate adjustment weights to optimize the calculation of the target height.

[0073] In some embodiments, the emergency lifting instruction has the highest priority. When triggered, the actuator 40 forcibly interrupts the current instruction and lifts the rain curtain to a preset safe height.

[0074] In some embodiments, the calculation formula for the dynamic compensation height value is: ΔH = 0.2×(v / 100)², where v is the real-time vehicle speed. When the vehicle speed ≥ 80 km / h, ΔH is limited to the maximum value; the target height = the base height ± ΔH.

[0075] This embodiment also provides a method for adaptively adjusting the height of the rain curtain, including the following steps:

[0076] S101: Use the road surface perception sensor 10 to detect the elevation and undulation information of the road surface ahead in real time (such as rainwater, potholes, speed bumps, etc.); synchronously obtain road conditions, vehicle speed, vehicle weight, and acceleration data.

[0077] S102: Use the vehicle-mounted dynamic parameter acquisition module 20 to obtain vehicle load, vehicle speed, and acceleration data; judge the current working condition type according to road conditions, vehicle speed, and load (such as flat road + high speed, flat road + low speed + high load, flat road + low speed + unloaded, potholed road surface, etc.).

[0078] S103: Use the Kalman filter algorithm to fuse the acquired data and calculate the target height of the rain curtain; for example:

[0079] Base height: According to the standard regulations, calculate the static reference value according to the load state (suspension height) (for example, the standard design height is 280 mm, and due to the load, it is pressed down by 20 mm, then the base height in this load state is retracted upward by 20 mm).

[0080] Dynamic compensation:

[0081] When the vehicle speed exceeds a certain speed (such as ≥ 80 km / h), lift the rain curtain to the highest position to reduce wind resistance (formula: ΔH = 0.2×(v / 100) 2 , when V reaches a certain speed, ΔH reaches the maximum value). When the road surface perception sensor detects a pothole on the road surface ahead, lift the rain curtain in advance to avoid touching the ground.

[0082] S104: Adjust the target height according to the vehicle speed dynamic compensation formula, and combine the undulation of the road surface ahead to predict the lifting action; drive the actuator 40 to adjust the rain curtain to the target height, and monitor the risk of touching the ground in real time to trigger an emergency lift. After the motor receives the adjusted target height from the intelligent control unit, it rotates upward or downward to drive the rain curtain to rise or fall.

[0083] In some embodiments, the calculation steps of the base height specifically include:

[0084] Map the vehicle load status based on the suspension height sensor data to generate the static reference height H_base;

[0085] Based on the ground clearance range under unloaded and fully loaded conditions specified in the standard regulations, dynamically correct H_base to ensure that H_base meets the lower and upper limit constraints of the regulations.

[0086] Multi-source data fusion and real-time perception: By integrating road surface perception sensors (lidar / ultrasonic) and vehicle dynamic parameters (vehicle speed, suspension height, acceleration), construct a real-time perception network of vehicle status and road conditions.

[0087] Dynamic compensation algorithm and working condition classification: Based on preset rules and dynamic compensation formulas, calculate the target ground clearance in combination with load, vehicle speed, and road condition types (bumpy, ramp, rain).

[0088] Fast response actuator: Adopt a mechanical design of rod mechanism + electric push rod / hydraulic actuator, combined with closed-loop control, to achieve rapid adjustment of the rain curtain height.

[0089] Safety redundancy mechanism: Embed a pressure sensor at the bottom of the rain curtain to monitor the risk of touching the ground in real time and trigger an emergency lift.

[0090] The technical solution adopted by the present invention is: Through sensors, accurately perceive the vehicle load, vehicle speed, and road surface undulation conditions in real time, and then realize the dynamic adjustment of the rain curtain height. The specific relationship is:

[0091] The suspension height sensor 2 detects the vehicle load, and calculates the basic height that meets the standard regulations according to the detection results.

[0092] When the vehicle speed sensor detects that the vehicle is in a high-speed driving state, the system will dynamically lift the rain curtain to effectively reduce wind resistance.

[0093] Once the road surface sensor detects potholes on the road surface, it will lift the rain curtain in advance to avoid the rain curtain touching the ground.

[0094] The advantages of the present invention are: It can keep the ground clearance of the rain curtain within the optimal range all the time, which can not only efficiently block the splashing water mist, but also effectively avoid mechanical damage to the rain curtain, thus significantly improving the driving safety.

[0095] There are many problems with the method of manually adjusting the rain curtain height. On the one hand, it overly relies on the driver's experience, and on the other hand, it cannot respond to sudden road conditions in a timely manner, such as when the vehicle suddenly encounters bumps.

[0096] To address these problems, the technical solution of the present invention is: Adopt a fully automatic adjustment method without manual intervention, and make a pre-judgment through algorithms, such as being able to respond to road surface undulations in advance. The specific relationship is:

[0097] After the acceleration sensor detects the frequency of vehicle bumps, the system classifies it as a "continuous bump" scenario, and at this time, the rain curtain will remain moderately lifted.

[0098] The lidar pre-scans the road surface ahead, and the control unit can issue a lifting command 0.5 seconds in advance.

[0099] Its advantage is that it realizes fully automated operation, effectively avoids the situation of human misjudgment, and ensures that the anti-splash effect is always stable and reliable.

[0100] When the traditional rain curtain is at high vehicle speeds, due to the too low ground clearance, it will cause an increase in wind resistance, and then the vehicle energy consumption will rise.

[0101] The technical solution of the present invention is to dynamically adjust the height of the rain curtain according to the vehicle speed, and the adjustment formula is ΔH = 0.2×(v / 100) 2 . The specific causal relationship is as follows: The control unit will calculate the influence of wind resistance, and according to the calculation result, the lifting height ΔH of the rain curtain will be judged. When it is judged that the weather and road conditions are good, as the vehicle speed increases, ΔH will continuously increase to lift the ground clearance of the rain curtain, and the maximum is reached when the vehicle speed reaches 80 km / h and above. From a physical principle perspective, lifting the rain curtain can reduce the frontal area, thereby reducing the wind resistance coefficient and ultimately achieving a reduction in energy consumption.

[0102] The traditional rain curtain lacks a ground contact protection mechanism, and when the vehicle encounters sudden severe bumps, it is very easy to cause mechanical damage to the rain curtain.

[0103] The technical solution of the present invention is: embed a pressure sensor at the bottom of the rain curtain, and set an emergency lifting logic, and this logic has the highest priority. The specific relationship is as follows:

[0104] When the pressure sensor detects the ground contact pressure, it will immediately trigger an emergency lifting command, and the electric push rod will be forced to retract to lift the rain curtain.

[0105] The control unit real-time verifies the execution result (through encoder feedback) and performs secondary error correction.

[0106] The advantage of the present invention is to reduce the ground contact risk, and the fault tolerance ability of the system has been significantly enhanced.

[0107] A single sensor, such as only relying on the vehicle speed sensor 5, cannot cover complex working conditions, such as when the vehicle is in a state of multiple situations superimposed, such as load, bump, and slope.

[0108] The technical solution of the present invention is as follows: The method of multi-source data fusion of lidar (detecting road surface conditions), suspension height sensor (detecting load), and acceleration sensor (detecting vibration) is adopted. The specific relationship is as follows: When the vehicle is in the state of uphill, full load and bumpy, the control unit will comprehensively calculate the height compensation amount. The Kalman filter algorithm is used to eliminate sensor noise, so as to output the accurate target height.

[0109] The advantage of the present invention is that it can adapt to extreme composite working conditions, such as mountain heavy-load transportation, etc., and the anti-splash performance will not decay.

[0110] There is such a problem with the fixed-height rain curtain that after the vehicle has been used for a period of time and the rain curtain is mechanically damaged, its ground clearance may exceed the range specified by relevant standards and regulations.

[0111] The technical solution of the present invention is to dynamically adjust the height of the rain curtain based on the load state of the vehicle to ensure that the ground clearance always meets the standards. The specific relationship is as follows:

[0112] When the suspension height sensor detects that the vehicle is in the unloaded state, the control unit will lower the rain curtain to the standard lower limit.

[0113] When the vehicle is in the full-load state, the rain curtain will be lifted accordingly, which not only avoids the problem of rubbing, but also meets the requirements of the standard upper limit.

[0114] The advantage of the present invention is that it can meet the regulatory requirements under all working conditions, effectively avoiding legal risks such as recalls and even regulatory penalties caused by static design defects.

[0115] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rain curtain height adaptive adjustment system, characterized in that, Comprising: A road surface perception sensor (10), installed at the front of the vehicle chassis, for real-time detection of the elevation and undulation information of the road surface ahead; An on-vehicle dynamic parameter acquisition module (20), including a suspension height sensor, a vehicle speed sensor, and an acceleration sensor, for obtaining vehicle load, vehicle speed, and acceleration data; An intelligent control unit (30), connected to the road surface perception sensor (10) and the on-vehicle dynamic parameter acquisition module (20), configured to generate a target height command for the rain curtain based on a multi-source data fusion algorithm; An actuator (40), including an electric push rod or a hydraulic actuator, connected to the rain curtain through a guide rail mechanism, for driving the rain curtain to vertically lift and lower according to the target height command.

2. The rain curtain height adaptive adjustment system according to claim 1, characterized in that The bottom of the rain curtain is provided with a serrated guiding structure and is embedded with a pressure sensor, and the pressure sensor is communicatively connected to the intelligent control unit (30), for real-time monitoring of the ground contact pressure and triggering an emergency lifting command.

3. The rain curtain height adaptive adjustment system according to claim 1, characterized in that The intelligent control unit (30) is configured to perform the following steps: Collect road surface elevation, vehicle speed, suspension height, and acceleration data; Calculate the base height according to the load state, and dynamically compensate the height value in combination with the vehicle speed; Calculate the target height; Detect the undulation of the road surface ahead and adjust the height of the rain curtain in advance based on the target height; Drive the actuator (40) through closed-loop control, and trigger emergency lifting based on the feedback of the pressure sensor.

4. The rain curtain height adaptive adjustment system according to claim 1, characterized in that, The multi-source data fusion algorithm is a Kalman filtering algorithm, for noise elimination and fusion of road surface elevation, suspension height, and vehicle speed data, and outputting the target height of the rain curtain.

5. The rain curtain height adaptive adjustment system according to claim 1, characterized in that The intelligent control unit (30) is configured to distinguish bumpy, high-speed, and ramp conditions according to acceleration and vehicle speed data, and dynamically allocate adjustment weights to optimize the calculation of the target height.

6. The rain curtain height adaptive adjustment system according to claim 2, wherein, The emergency lifting command has the highest priority, and when triggered, the actuator (40) forcibly interrupts the current command and lifts the rain curtain to a preset safe height.

7. The rain curtain height adaptive adjustment system according to claim 1, characterized in that, The calculation formula for the dynamically compensated height value is: ΔH = 0.2×(v / 100) 2 , where v is the real-time vehicle speed. When the vehicle speed ≥ 80 km / h, ΔH is limited to the maximum value; the target height = the base height ± ΔH.

8. A method for adaptively adjusting the height of a rain curtain, characterized in that, Including the following steps: Real-time detection of the elevation and undulation information of the road surface ahead through the road surface perception sensor (10); Obtaining vehicle load, vehicle speed, and acceleration data through the on-vehicle dynamic parameter acquisition module (20); Fusing the acquired data using the Kalman filtering algorithm to calculate the target height of the rain curtain; Adjust the target height according to the vehicle speed dynamic compensation formula, and predict the lifting action in combination with the undulation of the road surface ahead; Drive the actuator (40) to adjust the rain curtain to the target height, and real-time monitor the ground contact risk to trigger emergency lifting.

9. The rain curtain height adaptive adjustment method according to claim 8, characterized in that, The calculation steps of the base height specifically include: Mapping the vehicle load state according to the suspension height sensor data to generate a static reference height H_base; Dynamically correct H_base based on the ground clearance range specified in the standard regulations under unloaded and fully loaded states, to ensure that H_base meets the lower and upper limit constraints of the regulations.

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