Adjusting system and method for self-adaptive automobile transmission shaft

Abstract

The invention discloses a self-adaptive adjusting system and method for an automobile transmission shaft, relates to the technical field of automobile transmission shaft adjustment, and solves the technical problems that the transmission efficiency of the automobile transmission shaft is low, and the comfort is influenced by automobile resonance caused by the transmission shaft. The basic data of the automobile are collected, the suspension pressure in the basic data is calculated to obtain the suspension height, the length of the transmission shaft and the corresponding state data are obtained based on the suspension height, and the highest transmission efficiency avoiding resonance is obtained based on the state data. Marking the highest transmission efficiency as initial efficiency; the suspension pressure can change within a certain range under the influence of the transmission shaft, the second transmission efficiency is obtained after the influence of the transmission shaft on the suspension pressure and the influence on the transmission shaft are comprehensively considered, the adjustment parameters of the transmission shaft are determined after the initial efficiency and the second efficiency are compared, and the transmission shaft is adjusted according to the adjustment parameters, so that the problem is solved.

Description

Technical Field

[0001] The invention belongs to the field of automobile control, relates to automobile transmission shaft adjustment technology, and specifically is an adjustment system and method for an adaptive automobile transmission shaft. Background Art

[0002] Traditional drive shafts are often designed with passive adjustment. As a result, in actual use, due to the various road conditions, load changes and driving habits encountered by the car, these factors will affect the working state of the drive shaft, which may reduce its efficiency and life. For example, when the car suspension system is subjected to different pressures due to bumpy roads, the drive shaft will also be subjected to additional stress, causing it to twist or vibrate more, thus affecting the smoothness and efficiency of power transmission.

[0003] Since the transmission shaft is passively adjusted, the length of the transmission shaft will be uncontrolled, causing vehicle resonance and low transmission efficiency. Vehicle resonance will affect the driving experience and cause damage to the transmission shaft and the vehicle, while low transmission efficiency will not only affect vehicle energy consumption but also cause wear of parts. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes an adaptive automobile transmission shaft adjustment system and method, which are used to solve the technical problems that the automobile transmission shaft has low transmission efficiency and the transmission shaft causes automobile resonance affecting comfort. The present invention collects basic data of the automobile through a data acquisition device, and calculates the suspension pressure in the basic data to obtain the suspension height, obtains the length of the transmission shaft and a number of corresponding state data based on the suspension height, obtains the highest transmission efficiency that avoids automobile resonance based on the number of state data, and marks the highest transmission efficiency as the preliminary efficiency; since the automobile transmission shaft has a certain force-bearing capacity, the suspension pressure can vary within a certain range under the influence of the transmission shaft, and the second transmission efficiency is obtained after comprehensively considering the influence of the transmission shaft on the suspension pressure and the influence on itself, and the adjustment parameters of the transmission shaft are determined by comparing the preliminary efficiency and the second efficiency, and the transmission shaft is adjusted according to the adjustment parameters to solve the above problems.

[0005] To achieve the above object, a first aspect of the present invention provides an adaptive automobile transmission shaft adjustment method, comprising:

[0006] Collecting basic data of the car through data acquisition equipment; wherein the basic data includes suspension pressure and transmission shaft data; the transmission shaft data includes state data and force data of the transmission shaft; the force data includes pressure and tension;

[0007] The preliminary efficiency of the transmission shaft is obtained by analyzing the data of the suspension pressure, and the corresponding state data is obtained according to the preliminary efficiency and marked as preliminary state data; wherein the state data includes length and angle;

[0008] The comprehensive suspension pressure is obtained by calculating the influence of the transmission shaft on the suspension pressure within the force threshold range; the second efficiency of the transmission shaft is obtained by performing data analysis on the comprehensive suspension pressure, and corresponding state data is obtained according to the second efficiency and marked as second state data;

[0009] Determine whether the preliminary efficiency is greater than the second efficiency; if yes, mark the preliminary state data as the adjustment parameter; if no, mark the second state data as the adjustment parameter; adjust the transmission shaft according to the adjustment parameter.

[0010] The state data of the drive shaft not only affects the transmission efficiency of the drive shaft but also may cause the resonance of the car. Therefore, in order to maintain the high efficiency of the car drive shaft and improve the driving experience, it is necessary to actively adjust the state data of the drive shaft. There are two ways to adjust the drive shaft. The first is to derive the state data that keeps the car comfortable and efficient based on the suspension pressure of the car. In this case, the drive shaft is almost not subjected to force, which can greatly maintain the life of the drive shaft, but compared with the second method, there may be low transmission efficiency and poor comfort; the second is to calculate the comprehensive suspension pressure based on the influence of the tension or pressure that the drive shaft can withstand on the suspension pressure, and then derive the state data that keeps the car comfortable and efficient based on the comprehensive suspension pressure of the car. In this case, the drive shaft is subjected to a certain force, which will have a certain impact on the life of the drive shaft, but compared with the first method, there may be high transmission efficiency and good comfort. Finally, based on the results of these two methods combined with scientific calculations, the most valuable state data is selected to adjust the drive shaft.

[0011] Preferably, the steps after adjusting the transmission shaft according to the adjustment parameters include:

[0012] Determine whether the pressure of the transmission shaft exceeds the pressure threshold; if yes, proceed to the next step; if no, keep the current adjustment parameters;

[0013] Determine whether the tension of the transmission shaft exceeds the tension threshold; if yes, release the current adjustment parameters and re-obtain the adjustment parameters of the transmission shaft according to the suspension pressure; if no, keep the current adjustment parameters.

[0014] After the transmission shaft is adjusted according to the adjustment parameters, the adjustment parameters will be maintained. However, changes in road conditions or driving speed will cause different suspension pressures, which in turn cause different suspension heights, and ultimately cause changes in the pressure and tension on the transmission shaft. In order to ensure the safety of the transmission shaft, when the pressure or tension on the transmission shaft exceeds the corresponding threshold, the current adjustment parameters of the transmission shaft will be released so that the transmission shaft can be freely extended and retracted, and then the adjustment parameters of the transmission shaft will be recalculated. In this way, the car can always maintain high efficiency and comfort, while also ensuring the safety of the transmission shaft.

[0015] Preferably, the preliminary efficiency of the transmission shaft is obtained by performing data analysis on the suspension pressure, including:

[0016] Obtaining the suspension height through the suspension pressure; obtaining certain state data of the transmission shaft based on the suspension height;

[0017] Based on the efficiency table, the transmission efficiencies corresponding to the state data are obtained, and the transmission efficiencies are sorted to obtain the efficiency ranking; the efficiency table is obtained based on the state data of the transmission shaft and the corresponding transmission efficiency;

[0018] The lengths of several state data are extracted in order of efficiency, and several transmission frequencies are obtained by calculation;

[0019] Determine in turn whether several transmission frequencies will cause automobile resonance; if yes, exclude the transmission frequency; if no, obtain the length of the transmission shaft corresponding to the transmission frequency, and mark the transmission efficiency corresponding to the length as the preliminary efficiency.

[0020] The status data of the drive shaft includes length and angle, so the same suspension height will correspond to multiple sets of status data. By selecting the transmission efficiency with high transmission efficiency and good comfort from these status data as the preliminary efficiency, a set of excellent transmission efficiency data is retained as a selection, and it also provides a reference for selecting other transmission efficiency data.

[0021] Preferably, the comprehensive suspension pressure is obtained by calculating the influence of the transmission shaft on the suspension pressure within the force threshold range, including:

[0022] Obtain the pressure threshold and tension threshold of the transmission shaft, as well as the suspension pressure and suspension transmission angle, which are marked as CYY, CLY, XGY and γ respectively; wherein the suspension transmission angle is the angle between the suspension pressure of the vehicle suspension and the transmission shaft;

[0023] The first suspension pressure ZXGY1 is obtained by the formula ZXGY1=ζ1×(XGY+COSγ×CYY);

[0024] The second suspension pressure ZXGY2 is obtained by the formula ZXGY2=ζ2×(XGY-COSγ×CYL);

[0025] Among them, ζ1 and ζ2 are proportional coefficients greater than zero.

[0026] The value range of the comprehensive suspension pressure obtained based on the first suspension pressure and the second suspension pressure is (ZXGY2, ZXGY1).

[0027] When the vehicle drive shaft changes within the pressure or tension range, it will directly affect the suspension pressure, which in turn causes the suspension height to change. Therefore, the comprehensive suspension pressure range is obtained through calculation, and the corresponding drive shaft length is obtained through the suspension pressure range, and then the highest transmission efficiency when avoiding vehicle resonance is inferred.

[0028] Preferably, obtaining the second efficiency of the transmission shaft by performing data analysis on the comprehensive suspension pressure includes:

[0029] Obtaining a comprehensive suspension height based on the comprehensive suspension pressure; obtaining a number of state data of the transmission shaft based on the comprehensive suspension height and marking them as comprehensive state data;

[0030] Based on a number of comprehensive state data, corresponding transmission efficiencies are obtained and marked as comprehensive transmission efficiencies, and the comprehensive efficiency ranking is obtained by sorting the comprehensive transmission efficiencies;

[0031] Extract the lengths in the comprehensive state data in order of the comprehensive efficiency ranking, and obtain a number of comprehensive transmission frequencies;

[0032] It is judged in turn whether several comprehensive transmission frequencies will cause automobile resonance; if yes, the comprehensive transmission frequency is excluded; if no, the length of the transmission shaft corresponding to the comprehensive transmission frequency is obtained, and the comprehensive transmission efficiency corresponding to the length is marked as the spare efficiency;

[0033] Obtaining a number of optimized transmission efficiencies based on a number of standby efficiencies and corresponding optimization coefficients;

[0034] The largest value among several optimized transmission efficiencies is extracted as the second efficiency.

[0035] Since the standby efficiency is obtained under the condition that the transmission shaft has pressure or tension, the optimization coefficient is introduced to balance the impact on the life of the transmission shaft. The standby efficiency is corrected by the optimization coefficient to obtain the optimized transmission efficiency, so that the efficiency and life of the transmission shaft can be comprehensively evaluated.

[0036] Preferably, obtaining the suspension height by the suspension pressure comprises:

[0037] Record the suspension pressure and the corresponding suspension height;

[0038] After preprocessing the recorded data, several optimized pressure height data are obtained;

[0039] Obtaining a pressure height matching table based on the optimized pressure height data;

[0040] The suspension height can be obtained through the suspension pressure according to the pressure height matching table.

[0041] Preferably, several state data of the transmission shaft are obtained based on the suspension height, including:

[0042] Record the suspension height and corresponding status data;

[0043] Preprocess the recorded data to obtain optimized high-status data;

[0044] Obtaining a height state matching table based on optimized height state data;

[0045] According to the height state matching table, several state data of the transmission shaft can be obtained based on the suspension height.

[0046] Preferably, obtaining the optimization coefficient includes:

[0047] The optimization coefficient YX is obtained by the formula YX=α×|CYL / CYY+CLL / CLY| / L; wherein CYL is the pressure on the transmission shaft, CLL is the tension on the transmission shaft, YY is the pressure threshold of the transmission shaft, CLY is the tension threshold of the transmission shaft, L is the length of the transmission shaft, and α is a proportional coefficient greater than zero.

[0048] According to the optimization coefficient formula, the optimization coefficient of the drive shaft under different lengths, pressures or tensions can be obtained. In this way, the impact of the drive shaft under different state data can be better reflected.

[0049] Preferably, marking the second state data as an adjustment parameter includes:

[0050] dividing the second state data into state data groups according to the state data;

[0051] Determine whether the state data group is greater than one group; if not, mark the second state data as an adjustment parameter; if yes, proceed to the next step;

[0052] Get the most frequently occurring suspension pressure from the historical suspension pressures and mark it as trend pressure;

[0053] Obtain the corresponding transmission shaft length based on the trend pressure and mark it as the trend length;

[0054] Obtaining the lengths of a plurality of transmission shafts from the second state data and marking them as candidate lengths;

[0055] Compare the trend length with several candidate lengths, obtain the candidate length closest to the trend length, and mark it as the target length;

[0056] The status data corresponding to the target length is obtained, and the status data is marked as an adjustment parameter.

[0057] The suspension pressure of a car changes continuously while it is driving. If the change in suspension pressure exceeds the force threshold of the drive shaft, the length of the drive shaft will also be adjusted accordingly. In order to maintain high efficiency of the car while avoiding frequent adjustment of the drive shaft, the length of the car's drive shaft needs to be close to the drive shaft length corresponding to the most frequent suspension pressure.

[0058] Data acquisition module: collects basic data of the car through data acquisition equipment; wherein the basic data includes suspension pressure and transmission shaft data; the transmission shaft data includes state data and force data of the transmission shaft; the force data includes pressure and tension;

[0059] Data processing module: obtain the preliminary efficiency of the transmission shaft by performing data analysis on the suspension pressure, obtain corresponding state data according to the preliminary efficiency and mark it as preliminary state data; wherein the state data includes length and angle;

[0060] The comprehensive suspension pressure is obtained by calculating the influence of the transmission shaft on the suspension pressure within the force threshold range; the second efficiency of the transmission shaft is obtained by performing data analysis on the comprehensive suspension pressure, and corresponding state data is obtained according to the second efficiency and marked as second state data;

[0061] Data generation module: determine whether the preliminary efficiency is greater than the second efficiency; if yes, mark the preliminary state data as adjustment parameters; if no, mark the second state data as adjustment parameters; adjust the transmission shaft according to the adjustment parameters.

[0062] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application obtains the status data of the transmission shaft through the suspension pressure, and improves the efficiency of the transmission shaft by actively adjusting the status data of the transmission shaft, avoids causing resonance, and improves the driving experience of the personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0064] Figure 1 A schematic flow chart of an adaptive automobile transmission shaft adjustment method according to an embodiment of the present invention;

[0065] Figure 2 A schematic diagram of a flow chart of a method for obtaining adjustment parameters in second state data according to an embodiment of the present invention;

[0066] Figure 3 The present invention is a schematic diagram of an adaptive automobile transmission shaft adjustment system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0067] The technical scheme of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0068] See also Figure 1 The first aspect of the present invention provides an adaptive automobile transmission shaft adjustment method, comprising:

[0069] S1: Collect basic data of the car through data acquisition equipment.

[0070] The basic data include suspension pressure and transmission shaft data; the transmission shaft data include state data and force data of the transmission shaft; and the force data include pressure and tension.

[0071] In a preferred embodiment: the suspension pressure, as well as the pressure and tension of the transmission shaft are converted into analog quantities by a pressure sensor, and the data processing module converts the analog quantities into readable digital quantities.

[0072] S2: obtaining a preliminary efficiency of the transmission shaft by performing data analysis on the suspension pressure, obtaining corresponding state data according to the preliminary efficiency and marking it as preliminary state data; wherein the state data includes length and angle;

[0073] In a preferred embodiment, the suspension height is obtained by the suspension pressure, and several state data of the transmission shaft are obtained based on the suspension height. It should be noted that the suspension pressure of the car corresponds to the suspension height, and the length of the transmission shaft and the corresponding angle at each suspension height can be many, thus generating several groups of state data with different transmission efficiencies.

[0074] Based on the efficiency table, the transmission efficiency corresponding to several state data is obtained, and the efficiency ranking is obtained by sorting them according to the transmission efficiency; the efficiency table is obtained based on the state data of the transmission shaft and the corresponding transmission efficiency. It should be noted that the transmission efficiency will be relatively large when the angle of the transmission shaft is adjusted within the safe range. When it exceeds the safe range, it will cause wear, and wear will cause a decrease in efficiency. Therefore, the higher the transmission efficiency, the safer the angle of the transmission shaft is.

[0075] The lengths of several state data are extracted in order of efficiency, and several transmission frequencies are obtained by calculation;

[0076] Determine in turn whether several transmission frequencies will cause automobile resonance; if yes, exclude the transmission frequency; if no, obtain the length of the transmission shaft corresponding to the transmission frequency, and mark the transmission efficiency corresponding to the length as preliminary efficiency; obtain the corresponding status data according to the preliminary efficiency and mark it as preliminary status data.

[0077] It should be noted that automobile resonance will reduce ride comfort and cause damage to the vehicle, so it is very important to avoid resonance caused by the drive shaft. The fixed frequency of the drive shaft that causes resonance is related to factors such as its own weight and material, especially the length of the drive shaft. Therefore, changing the length of the drive shaft can effectively change the drive shaft to a fixed frequency and avoid the resonant frequency with the car.

[0078] The state data that ensures transmission efficiency and avoids resonance is a set of very high-quality state data.

[0079] S3: obtaining the comprehensive suspension pressure by calculating the influence of the transmission shaft on the suspension pressure within the force threshold range;

[0080] In a preferred embodiment, the pressure threshold and tension threshold of the transmission shaft, as well as the suspension pressure and the suspension transmission angle are obtained, which are marked as CYY, CLY, XGY and γ respectively; wherein the suspension transmission angle is the angle between the suspension pressure of the vehicle suspension and the transmission shaft;

[0081] The first suspension pressure ZXGY1 is obtained by the formula ZXGY1=ζ1×(XGY+COSγ×CYY);

[0082] The second suspension pressure ZXGY2 is obtained by the formula ZXGY2=ζ2×(XGY-COSγ×CYL);

[0083] Among them, ζ1 and ζ2 are proportional coefficients greater than zero.

[0084] The value range of the comprehensive suspension pressure obtained based on the first suspension pressure and the second suspension pressure is (ZXGY2, ZXGY1).

[0085] It should be noted that the drive shaft has a certain range of compression and tension resistance due to the influence of its own material. Within this range, the drive shaft can maintain a normal state. Of course, it will also cause slight wear.

[0086] S4: obtaining a second efficiency of the transmission shaft by performing data analysis on the comprehensive suspension pressure, and obtaining corresponding state data according to the second efficiency and marking the data as second state data;

[0087] In a preferred embodiment, a comprehensive suspension height is obtained based on the comprehensive suspension pressure; a number of state data of the transmission shaft are obtained based on the comprehensive suspension height and marked as comprehensive state data;

[0088] Based on a number of comprehensive state data, corresponding transmission efficiencies are obtained and marked as comprehensive transmission efficiencies, and the comprehensive efficiency ranking is obtained by sorting the comprehensive transmission efficiencies;

[0089] Extract the lengths in the comprehensive state data in order of the comprehensive efficiency ranking, and obtain a number of comprehensive transmission frequencies;

[0090] It is judged in turn whether several comprehensive transmission frequencies will cause automobile resonance; if yes, the comprehensive transmission frequency is excluded; if no, the length of the transmission shaft corresponding to the comprehensive transmission frequency is obtained, and the comprehensive transmission efficiency corresponding to the length is marked as the spare efficiency;

[0091] Several optimized transmission efficiencies are obtained based on several spare efficiencies and corresponding optimization coefficients; it should be noted that the spare efficiency is obtained when the transmission shaft is subjected to pressure or tension, which will cause slight wear on the transmission shaft, because the optimization coefficient is added to optimize the spare efficiency.

[0092] The largest value among several optimized transmission efficiencies is extracted as the second efficiency.

[0093] And corresponding state data is obtained according to the second efficiency and marked as second state data.

[0094] In a preferred embodiment, obtaining the suspension height by the suspension pressure comprises:

[0095] Record the suspension pressure and the corresponding suspension height;

[0096] After preprocessing the recorded data, several optimized pressure height data are obtained;

[0097] Obtaining a pressure height matching table based on the optimized pressure height data;

[0098] The suspension height can be obtained through the suspension pressure according to the pressure height matching table.

[0099] In a preferred embodiment, several state data of the transmission shaft are obtained based on the suspension height, including:

[0100] Record the suspension height and corresponding status data;

[0101] Preprocess the recorded data to obtain optimized high-status data;

[0102] Obtaining a height state matching table based on optimized height state data;

[0103] According to the height state matching table, several state data of the transmission shaft can be obtained based on the suspension height.

[0104] In a preferred embodiment, obtaining the optimization coefficient includes:

[0105] The optimization coefficient YX is obtained by the formula YX=α×|CYL / CYY+CLL / CLY| / L; wherein CYL is the pressure on the transmission shaft, CLL is the tension on the transmission shaft, YY is the pressure threshold of the transmission shaft, CLY is the tension threshold of the transmission shaft, L is the length of the transmission shaft, and α is a proportional coefficient greater than zero.

[0106] The optimization coefficient is to optimize the standby efficiency, so that the damage to the drive shaft can be included to obtain more optimized data. For example, if the drive shaft length that causes vehicle resonance is also avoided, the standby efficiency 1 is 80%; the pressure on the drive shaft is 600kpa; the optimization coefficient is 0.5; the optimized transmission efficiency is 0.4; the standby efficiency 2 is 60%; the pressure on the drive shaft is 300kpa; the optimization coefficient is 0.8; the optimized transmission efficiency is 0.48; according to the transmission efficiency, the standby efficiency 1 is higher, but considering the impact on the drive shaft pressure, the state data corresponding to the standby efficiency 2 is more appropriate after comprehensive consideration.

[0107] S5: Determine whether the preliminary efficiency is greater than the second efficiency; if yes, proceed to S6; if no, proceed to S7;

[0108] S6: preliminary state data are marked as adjustment parameters;

[0109] S7: marking the second state data as adjustment parameters;

[0110] S8: Adjust the transmission shaft according to the adjustment parameters.

[0111] It should be noted that the transmission shaft is controlled by a motor and forms a closed-loop structure with the control system. After receiving the adjustment parameters, the transmission shaft will be adjusted according to the preset parameters and provide real-time feedback until the target parameters are reached.

[0112] In a preferred embodiment, the steps after adjusting the transmission shaft according to the adjustment parameters include:

[0113] Determine whether the pressure of the transmission shaft exceeds the pressure threshold; if yes, proceed to the next step; if no, keep the current adjustment parameters;

[0114] Determine whether the tension of the drive shaft exceeds the tension threshold; if yes, release the current adjustment parameters and re-obtain the adjustment parameters of the drive shaft according to the suspension pressure; if no, keep the current adjustment parameters. It should be noted that the force on the drive shaft is constantly changing during the driving process of the car, and when it exceeds the corresponding threshold, it will cause damage to the drive shaft. The length and angle of the drive shaft are actively adjusted, so it is necessary to promptly contact the active adjustment method when the force on the drive shaft exceeds the threshold to avoid damage to the adjustment system. After releasing the adjustment system, recalculate the required adjustment parameters and use the new adjustment parameters to adjust the drive shaft.

[0115] See also Figure 2 , the method for obtaining the adjustment parameter in the second state data according to an embodiment of the present invention includes:

[0116] The second state data is divided into state data groups according to the state data; it should be noted that the second state data is obtained based on the force condition of the transmission shaft, so the state data contained in the second state data (the state data includes length and angle) is greater than or equal to one; then the state data group can be obtained by dividing according to the state data.

[0117] Determine whether the status data group is greater than one group; if not, mark the second status data as an adjustment parameter; if yes, proceed to the next step; it should be noted that if the status data group is just one group of data, then this group of data is used as an adjustment parameter, and if there are two or more groups, a secondary screening is required.

[0118] The suspension pressure with the highest frequency is obtained from the historical suspension pressure and marked as the trend pressure; it should be noted that the historical suspension pressure refers to the suspension pressure of the car during driving in the recent period of time, such as the suspension pressure applied to the car in the past minute.

[0119] Obtain the corresponding transmission shaft length based on the trend pressure and mark it as the trend length;

[0120] Obtaining the lengths of a plurality of transmission shafts from the second state data and marking them as candidate lengths;

[0121] Compare the trend length with several candidate lengths, obtain the candidate length closest to the trend length, and mark it as the target length;

[0122] The status data corresponding to the target length is obtained, and the status data is marked as an adjustment parameter.

[0123] It should be noted that, for the second state data having two or more sets of state data, the logic of selecting the adjustment parameter is to find the one with the minimum adjustment frequency, which can increase the service life of the adjustment control component of the transmission shaft and reduce wear.

[0124] See also Figure 3 The first aspect of the present invention provides an adaptive automobile transmission shaft adjustment system, comprising:

[0125] Data acquisition module: collects basic data of the car through data acquisition equipment; wherein the basic data includes suspension pressure and transmission shaft data; the transmission shaft data includes state data and force data of the transmission shaft; the force data includes pressure and tension;

[0126] Data processing module: obtain preliminary efficiency of the transmission shaft by performing data analysis on the suspension pressure, obtain corresponding status data according to the preliminary efficiency and mark it as preliminary status data; wherein the status data includes length and angle; and,

[0127] The comprehensive suspension pressure is obtained by calculating the influence of the transmission shaft on the suspension pressure within the force threshold range; the second efficiency of the transmission shaft is obtained by performing data analysis on the comprehensive suspension pressure, and corresponding state data is obtained according to the second efficiency and marked as second state data;

[0128] Data generation module: determine whether the preliminary efficiency is greater than the second efficiency; if yes, mark the preliminary state data as adjustment parameters; if no, mark the second state data as adjustment parameters; adjust the transmission shaft according to the adjustment parameters.

[0129] The data processing module is connected to the data acquisition module and the data generation module respectively. The data acquisition module collects the basic data of the car through the data acquisition device and transmits the basic data to the data processing module. The data processing module calculates and processes the basic data and sends the processing results to the data generation module. The data generation module compares the received processing results and selects the adjustment parameters, and sends the adjustment parameters to the actuator.

[0130] Part of the data in the above formula is calculated by removing the dimension and taking its numerical value. The formula is a formula closest to the actual situation obtained by software simulation of a large amount of collected data; the preset parameters and preset thresholds in the formula are set by technical personnel in this field according to actual conditions or obtained through simulation of a large amount of data.

[0131] The working principle of the present invention is as follows: basic data of the automobile is collected by a data collection device, and the suspension height is obtained after the suspension pressure in the basic data is calculated, the length of the transmission shaft and a number of corresponding state data are obtained based on the suspension height, the highest transmission efficiency avoiding the resonance of the automobile is obtained based on the number of state data, and the highest transmission efficiency is marked as the preliminary efficiency; since the automobile transmission shaft has a certain force-bearing capacity, the suspension pressure can vary within a certain range under the influence of the transmission shaft, and the second transmission efficiency is obtained after comprehensively considering the influence of the transmission shaft on the suspension pressure and the influence on itself, the adjustment parameters of the transmission shaft are determined by comparing the preliminary efficiency and the second efficiency, and the transmission shaft is adjusted according to the adjustment parameters.

[0132] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A method for adjusting an adaptive automobile transmission shaft, characterized in that: Collecting basic data of the car through data acquisition equipment; wherein the basic data includes suspension pressure and transmission shaft data; the transmission shaft data includes state data and force data of the transmission shaft; the force data includes pressure and tension; The preliminary efficiency of the transmission shaft is obtained by analyzing the data of the suspension pressure, and the corresponding state data is obtained according to the preliminary efficiency and marked as preliminary state data; wherein the state data includes length and angle; The comprehensive suspension pressure is obtained by calculating the influence of the transmission shaft on the suspension pressure within the force threshold range; the second efficiency of the transmission shaft is obtained by performing data analysis on the comprehensive suspension pressure, and corresponding state data is obtained according to the second efficiency and marked as second state data; Determine whether the preliminary efficiency is greater than the second efficiency; if yes, mark the preliminary state data as the adjustment parameter; if no, mark the second state data as the adjustment parameter; adjust the transmission shaft according to the adjustment parameter.

2. The method for adjusting an adaptive automobile transmission shaft according to claim 1, characterized in that: The step of adjusting the transmission shaft according to the adjustment parameters comprises: Determine whether the pressure of the transmission shaft exceeds the pressure threshold; if yes, proceed to the next step; if no, keep the current adjustment parameters; Determine whether the tension of the transmission shaft exceeds the tension threshold; if yes, release the current adjustment parameters and re-obtain the adjustment parameters of the transmission shaft according to the suspension pressure; if no, keep the current adjustment parameters.

3. The method for adjusting an adaptive automobile transmission shaft according to claim 1, characterized in that: The method of obtaining the preliminary efficiency of the transmission shaft by performing data analysis on the suspension pressure includes: Obtaining the suspension height through the suspension pressure; obtaining certain state data of the transmission shaft based on the suspension height; Based on the efficiency table, the transmission efficiencies corresponding to the state data are obtained, and the transmission efficiencies are sorted to obtain the efficiency ranking; the efficiency table is obtained based on the state data of the transmission shaft and the corresponding transmission efficiency; The lengths of several state data are extracted in order of efficiency, and several transmission frequencies are obtained by calculation; Determine in turn whether several transmission frequencies will cause automobile resonance; if yes, exclude the transmission frequency; if no, obtain the length of the transmission shaft corresponding to the transmission frequency, and mark the transmission efficiency corresponding to the length as the preliminary efficiency.

4. The method for adjusting an adaptive automobile transmission shaft according to claim 1, characterized in that: The method of obtaining the comprehensive suspension pressure by calculating the influence of the transmission shaft on the suspension pressure within the force threshold range includes: Obtain the pressure threshold and tension threshold of the transmission shaft, as well as the suspension pressure and suspension transmission angle, which are marked as CYY, CLY, XGY and γ respectively; wherein the suspension transmission angle is the angle between the suspension pressure of the vehicle suspension and the transmission shaft; The first suspension pressure ZXGY1 is obtained by the formula ZXGY1=ζ1×(XGY+COSγ×CYY); The second suspension pressure ZXGY2 is obtained by the formula ZXGY2=ζ2×(XGY-COSγ×CYL); Among them, ζ1 and ζ2 are proportional coefficients greater than zero.

5. The method for adjusting an adaptive automobile transmission shaft according to claim 1, characterized in that: The method of obtaining the second efficiency of the transmission shaft by performing data analysis on the comprehensive suspension pressure includes: Obtaining a comprehensive suspension height based on the comprehensive suspension pressure; obtaining a number of state data of the transmission shaft based on the comprehensive suspension height and marking them as comprehensive state data; Based on a number of comprehensive state data, corresponding transmission efficiencies are obtained and marked as comprehensive transmission efficiencies, and the comprehensive efficiency ranking is obtained by sorting the comprehensive transmission efficiencies; Extract the lengths in the comprehensive state data in order of the comprehensive efficiency ranking, and obtain a number of comprehensive transmission frequencies; It is judged in turn whether several comprehensive transmission frequencies will cause automobile resonance; if yes, the comprehensive transmission frequency is excluded; if no, the length of the transmission shaft corresponding to the comprehensive transmission frequency is obtained, and the comprehensive transmission efficiency corresponding to the length is marked as the spare efficiency; Obtaining a number of optimized transmission efficiencies based on a number of standby efficiencies and corresponding optimization coefficients; The largest value among several optimized transmission efficiencies is extracted as the second efficiency.

6. The method for adjusting an adaptive automobile transmission shaft according to claim 5, characterized in that: The acquisition of the optimization coefficient includes: The optimization coefficient YX is obtained by the formula YX=α×|CYL / CYY+CLL / CLY| / L; wherein CYL is the pressure on the transmission shaft, CLL is the tension on the transmission shaft, YY is the pressure threshold of the transmission shaft, CLY is the tension threshold of the transmission shaft, L is the length of the transmission shaft, and α is a proportional coefficient greater than zero.

7. The method for adjusting an adaptive automobile transmission shaft according to claim 1, characterized in that: The step of marking the second state data as an adjustment parameter comprises: dividing the second state data into state data groups according to the state data; Determine whether the state data group is greater than one group; if not, mark the second state data as an adjustment parameter; if yes, proceed to the next step; Get the most frequently occurring suspension pressure from the historical suspension pressures and mark it as trend pressure; Obtain the corresponding transmission shaft length based on the trend pressure and mark it as the trend length; Obtaining the lengths of a plurality of transmission shafts from the second state data and marking them as candidate lengths; Compare the trend length with several candidate lengths, obtain the candidate length closest to the trend length, and mark it as the target length; The status data corresponding to the target length is obtained, and the status data is marked as an adjustment parameter.

8. An adaptive automobile transmission shaft adjustment system, characterized in that: Data acquisition module: collects basic data of the car through data acquisition equipment; wherein the basic data includes suspension pressure and transmission shaft data; the transmission shaft data includes state data and force data of the transmission shaft; the force data includes pressure and tension; Data processing module: obtain the preliminary efficiency of the transmission shaft by performing data analysis on the suspension pressure, obtain corresponding state data according to the preliminary efficiency and mark it as preliminary state data; wherein the state data includes length and angle; The comprehensive suspension pressure is obtained by calculating the influence of the transmission shaft on the suspension pressure within the force threshold range; Obtaining a second efficiency of the transmission shaft by performing data analysis on the comprehensive suspension pressure, and obtaining corresponding state data according to the second efficiency and marking the data as second state data; Data generation module: determine whether the preliminary efficiency is greater than the second efficiency; if yes, mark the preliminary state data as adjustment parameters; if no, mark the second state data as adjustment parameters; adjust the transmission shaft according to the adjustment parameters.

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