CN115219249A - Vehicle steering system aging detection method and device and vehicle - Google Patents

Abstract

The invention discloses a vehicle steering system aging detection method, equipment and a vehicle. The vehicle steering system aging detection method includes: obtaining the steering torque value, steering angle and aging proportion curve of the vehicle steering system; according to the aging proportion curve , steering torque value and steering angle, and determine the measured aging value; based on the measured aging value and steering angle, update the aging proportion curve, and determine the aging detection result of the vehicle steering system according to the updated aging proportion curve. The invention realizes that the aging detection result of the vehicle steering system can be automatically detected in real time, accurately and quickly based on the measured aging value and the aging proportion curve, which greatly improves the objectivity, accuracy and reliability of the aging detection of the vehicle steering system. sex.

Description

Vehicle steering system aging detection method, device and vehicle

technical field

The present invention relates to vehicle detection technology, in particular to a vehicle steering system aging detection method, device and vehicle.

Background technique

At present, more and more vehicles are equipped with a vehicle steering system (EPS for short). The vehicle steering system can allow the driver to turn the steering wheel of the vehicle lightly, and control the driving direction of the vehicle in a timely and accurate manner, thereby allowing the driver to grasp the driving of the vehicle. Therefore, the vehicle steering system plays a very important role in the vehicle driving safety, and the aging detection of the vehicle steering system is very necessary, but the existing aging detection is obtained by measuring the mileage of the vehicle. In fact, the lateral steering The controlled vehicle steering system has no essential relationship with the mileage of the longitudinal travel, resulting in inaccurate aging detection and low reliability of the vehicle steering system.

SUMMARY OF THE INVENTION

The present invention provides an aging detection method, device and vehicle for a vehicle steering system, and solves the technical problems of inaccurate aging detection and low reliability of the existing vehicle steering system.

A vehicle steering system aging detection method, comprising:

Obtain the steering torque value, steering angle and aging ratio curve of the vehicle steering system;

determining a measured aging value according to the aging ratio curve, the steering torque value and the steering angle;

Based on the measured aging value and the steering angle, an update process is performed on the aging proportion curve, and an aging detection result of the vehicle steering system is determined according to the updated aging proportion curve.

A vehicle steering system aging detection device, comprising:

The acquisition module is used to acquire the steering torque value, steering angle and aging ratio curve of the vehicle steering system;

a determining module, configured to determine a measured aging value according to the aging ratio curve, the steering torque value and the steering angle;

a detection module, configured to update the aging proportion curve based on the measured aging value and the steering angle, and determine the aging detection of the vehicle steering system according to the aging proportion curve after the update process result.

A vehicle includes a vehicle steering system and a control module connected to the vehicle steering system, wherein the control module executes the above-mentioned vehicle steering system aging detection method.

The present invention provides an aging detection method for a vehicle steering system, which realizes that by obtaining the steering torque value, steering angle and aging proportion curve of the vehicle steering system; according to the aging proportion curve, the steering torque value and the steering angle, determine the measured aging value; based on the measured aging value and the steering angle, update the aging proportion curve, and determine the vehicle steering system according to the aging proportion curve after the update process. Therefore, the present invention can real-time collect the steering torque value and steering angle, calculate the measured aging value corresponding to the steering angle in real time according to the aging ratio curve, the steering torque value and the steering angle, and based on the measured aging value and The steering angle dynamically updates the aging ratio curve, and outputs the aging detection results of the vehicle steering system in real time through the aging ratio curve. In this way, it is possible to automatically detect in real time, accurately and quickly based on the measured aging value and the aging ratio curve. The aging detection result of the aging of the vehicle steering system is obtained, which greatly improves the objectivity, accuracy and reliability of the aging detection of the vehicle steering system, and ensures the driving safety of the vehicle steering system.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention , for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

1 is a flowchart of a method for detecting aging of a vehicle steering system according to an embodiment of the present invention;

FIG. 2 is a flowchart of step S20 in a method for detecting aging of a vehicle steering system according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a vehicle steering system aging detection device according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The vehicle steering system aging detection method provided by the present invention can be applied to a control module in a vehicle, and the vehicle steering system aging detection method can be realized through the control module.

In one embodiment, as shown in FIG. 1 , a method for detecting aging of a vehicle steering system is provided, and the technical solution mainly includes the following steps S10-S30:

S10, acquiring the steering torque value, the steering angle and the aging ratio curve of the vehicle steering system.

Understandably, the vehicle steering system is a system that controls the movement of the vehicle such as running or reversing, abbreviated as EPS. and other parameters, the output steering torque value can be calculated. The steering torque value is the torque that measures the load or resistance received by the vehicle at the current moment. The steering torque value includes the motor-assisted assist torque and the mechanically assisted hand torque. and hand torque can reflect the torque of the load or resistance received by the vehicle. The steering angle is the angle of the steering wheel of the vehicle, that is, the rotation angle of the steering wheel of the vehicle. The steering angle can be collected by the angle sensor of the steering system of the vehicle to measure the steering wheel. The angle of rotation can be based on the zero-degree steering angle of the steering wheel of the vehicle. The clockwise rotation angle exceeding zero degrees is defined as a positive value, and the counterclockwise rotation angle exceeding zero degrees is defined as a negative value. Generally, the steering wheel of a vehicle can be determined based on zero degrees. Rotate 900 degrees clockwise, that is, it can rotate two and a half circles clockwise based on zero degrees, and rotate 900 degrees counterclockwise based on zero degrees, that is, rotate two and a half circles counterclockwise based on zero degrees, usually the maximum angle of clockwise rotation and counterclockwise rotation The maximum angle of rotation of the hour hand is the same and is symmetrical to each other. The aging ratio curve is the continuous curve presented by the aging ratio values corresponding to each steering angle within the range of all steering angles, that is, through the collected steering angles. The corresponding discrete aging proportion value is obtained by using the continuous curve generation. The initial aging proportion curve is a line segment with a value of zero in the range of all steering angles, because the factory or initialized steering wheel has not been rotated. , there is no aging loss process, so the aging proportion of each steering angle is zero. When the steering wheel starts to rotate from the factory or initialized position, the vehicle steering system begins to wear out, and the aging proportion curve will follow the rotation of the steering angle. Usually, the more times a steering angle is reached by rotation, the greater the aging ratio value. As time goes by, the aging ratio curve will show a normal distribution curve, because the arrival frequency in the middle is the highest.

S20: Determine a measured aging value according to the aging ratio curve, the steering torque value and the steering angle.

Understandably, the aging proportion value corresponding to the steering angle can be found from the aging proportion curve, and then the aging coefficient corresponding to the found aging proportion value is obtained from the preset aging coefficient comparison table, and finally. , the measured aging value corresponding to the steering angle is determined according to the aging coefficient, the steering torque value and the steering angle, where the aging coefficient is a variable or coefficient that measures the aging of the vehicle steering system, and the The aging coefficient is derived from historical experimental data. Through the functional relationship between the aging coefficient, steering torque value, steering angle and the measure of aging degree obtained from the experiment, an aging value that reflects the degree of wear and tear is calculated for a steering angle. The measured aging value is an aging value jointly determined by the aging coefficient, the measured steering torque value and the steering angle.

The aging proportion value in the aging proportion curve corresponds to the steering angle one-to-one, that is, one steering angle corresponds to one aging proportion value, and the aging coefficient comparison table is a one-to-one correspondence between the aging proportion value and the aging coefficient. , the aging coefficient reflects that different aging proportion values correspond to different aging coefficients. The aging proportion value and the aging coefficient can show a linear or parabolic relationship. When the aging proportion value is zero, the aging coefficient is 1, and when the aging proportion value is 100 %, the aging coefficient is 0.

In an embodiment, in the step S20, that is, determining the measured aging value according to the aging ratio curve, the steering torque value and the steering angle, including:

S201: Determine a to-be-processed aging proportion value according to the aging proportion curve and the steering angle.

Understandably, the aging proportion value corresponding to the steering angle is found in the aging proportion curve, that is, the found aging proportion value is determined as the to-be-processed aging proportion value, and the to-be-processed aging proportion value is determined. It is the aging percentage value that needs to be processed or changed.

S202: Determine an aging coefficient corresponding to the to-be-processed aging ratio value according to a preset aging coefficient comparison table.

Understandably, the aging coefficient comparison table is a comparison table obtained in advance through experiments, and the aging coefficient corresponding to the to-be-processed aging proportion value is searched from the aging coefficient comparison table.

S203: Determine the measured aging value according to the aging coefficient, the steering torque value and the steering angle.

Understandably, by using the found aging coefficient, the collected steering torque value and the steering angle, a preset aging function is used to calculate the measured aging value corresponding to the steering angle, and the preset aging function It can reflect the relationship between the aging coefficient, steering torque value and steering angle and the damage degree of aging.

The invention realizes that the aging proportion value to be treated is determined according to the aging proportion curve and the steering angle; the aging coefficient corresponding to the aging proportion value to be treated is determined according to the preset aging coefficient comparison table; coefficient, the steering torque value and the steering angle to determine the measured aging value, so that the aging proportion value of the current steering angle can be found in the aging proportion curve, and then obtained from the aging coefficient comparison table. The aging coefficient corresponding to the found aging proportion value, automatically determines the aging value based on the aging coefficient, steering torque value and steering angle, and accurately measures the aging degree of the vehicle steering system under the current steering angle at this moment, scientifically and objectively It is a measure of the degree of damage to a steering angle or the degree of equipment aging.

In an embodiment, the determining the measured aging value according to the aging coefficient, the steering torque value and the steering angle includes:

The measured aging value is obtained according to the aging coefficient, the steering torque value, the steering angle and a preset aging function; the preset aging function is:

y=T×θ×k,

in,

y is the measured aging value;

T is the steering torque value;

θ is the steering angle;

k is the aging coefficient.

In this way, through the preset aging function, it is possible to accurately measure the degree of damage or the aging of the instrument caused by reaching a steering angle once.

S30, based on the measured aging value and the steering angle, perform an update process on the aging proportion curve, and determine an aging detection result of the vehicle steering system according to the updated aging proportion curve.

Understandably, a steering angle-aging value coordinate diagram of the relationship between the steering angle and the aging value is pre-built, and the steering angle-aging value coordinate diagram records the aging value of the effective discrete point reflected by each steering angle being reached once. The distribution diagram of the steering angle-aging value, that is, the coordinate diagram of the steering angle-aging value records the discrete effective aging values in the history, and the discrete aging values calculated under the same steering angle will not be very different, that is, the discrete aging values. Within a certain tolerance range, the aging value will fluctuate during the entire life cycle or aging cycle, but the amplitude of the fluctuation will not exceed a certain tolerance range, and the tolerance range will vary with time and steering angle. Therefore, it is necessary to filter or judge whether the measured aging value is a valid discrete point, only then can the determined valid aging value fall into the coordinate diagram of steering angle-aging value, and the invalid aging value is eliminated, and the The filtered and effective measured aging values are inserted into the steering angle-aging value coordinate graph, and the update process is as follows: accumulating all the aging values under each steering angle in the steering angle-aging value coordinate graph, and summing the The accumulated results are connected by a continuous curve to obtain a new aging curve, that is, a continuous curve is drawn or generated according to discrete points, that is, a series of steering angle-cumulative aging value array matrix is performed on the curve function. Generate, generate a curve function that can reflect the distribution of the steering angle-cumulative aging value array matrix, the cumulative aging value is the value of accumulating all the aging values under a steering angle, and then according to the new aging curve and the preset life curve , obtain the aging proportion value of each steering angle, and update the original aging proportion curve to obtain a new aging proportion curve. The update processing process can also be: adding the effective measured aging value to the previously generated In the aging curve, that is, adding the measured aging value and the accumulated aging value corresponding to the steering angle in the generated aging curve to obtain a new accumulated aging value corresponding to the steering angle, thereby generating a new aging curve , and then according to the new aging curve and the preset life curve, the process of updating the original aging proportion curve, so that the aging value of other steering angles can be accumulated or the same operation can be performed for other steering angles, reducing the number of processors processing operations.

Wherein, all the aging proportion values in the new aging proportion curve are analyzed, and the aging detection result is determined, and the aging detection result is the result of the aging state of the vehicle steering system based on the aging proportion curve, and the The aging detection result reflects the aging state or condition of the current vehicle steering system, and serves as an early warning.

The invention realizes that by acquiring the steering torque value, steering angle and aging ratio curve of the vehicle steering system; determining and measuring the aging value according to the aging ratio curve, the steering torque value and the steering angle; based on the measurement The aging value and the steering angle, update the aging proportion curve, and determine the aging detection result of the vehicle steering system according to the updated aging proportion curve. Therefore, the present invention can collect the steering torque value in real time. and steering angle, calculate the measured aging value corresponding to the steering angle in real time according to the aging proportion curve, steering torque value and steering angle, and dynamically update the aging proportion curve based on the measured aging value and steering angle, and output the aging proportion curve in real time The aging detection results of the vehicle steering system, in this way, the aging detection results of the aging of the vehicle steering system can be automatically detected in real time, accurately and quickly based on the measured aging value and the aging ratio curve, which greatly improves the vehicle steering system. The objectivity, accuracy and reliability of the system aging detection ensure the driving safety of the vehicle steering system.

In an embodiment, in the step S30, that is, performing an update process on the aging ratio curve based on the measured aging value and the steering angle, including:

It is judged whether the measured aging value falls within the historical aging matrix interval corresponding to the steering angle.

Understandably, the historical aging matrix interval is a matrix interval generated based on all historical aging values within the preset range of the steering angle, and it can be determined whether the measured aging value is valid through the historical aging matrix interval. , the historical aging matrix interval is a matrix interval composed of all historical discrete aging values within the preset range of the steering angle, and the mean value of the historical aging matrix interval is calculated to determine whether the measured aging value is Within the preset tolerance value range of the mean value, or perform mean value and variance calculation for the historical aging matrix interval, set a preset tolerance value range on the basis of the variance, and determine whether the measured aging value is within the mean value. Within the preset tolerance value range, the preset tolerance value is a tolerance value summed up and outputted through historical experiments for judging whether the aging value is valid. If it is within the preset tolerance value range of the mean value, determine the The measured aging value falls within the historical aging matrix interval. If it is not within the preset tolerance value range of the mean value, it is determined that the measured aging value does not fall into the historical aging matrix interval, and the measured aging value needs to be deleted or eliminated. , the measured aging value can be filtered, so as to avoid the influence of the wrongly collected measured aging value on the aging detection of the vehicle steering system.

In one embodiment, the judging whether the measured aging value falls within the historical aging matrix interval corresponding to the steering angle includes:

Acquire a preset angle interval corresponding to the steering angle.

It is understandable that a preset angle interval corresponding to each steering angle is set in advance, the preset angle interval is the tolerance range of the steering angle, and the preset angle interval can be set according to requirements, for example, the steering angle is +20 The preset angle range is a tolerance range of 3 degrees, that is, +17(+20-3) degrees to +23(+20+3) degrees. Since a larger steering angle occurs less frequently, you can set a preset The angle interval is the same as other steering angles, and the preset angle interval can also be set to be different, for example: the steering angle is -380 degrees, and the preset angle interval is the tolerance range of 10 degrees, that is, -390 (-380-10) degrees to -370(-380+10) degrees.

The historical aging matrix interval is generated according to the preset angle interval and the aging ratio curve.

Understandably, a steering angle-aging value graph corresponding to the aging ratio curve is obtained, an aging curve can be generated by using the steering angle-aging value graph, and an aging ratio curve can be generated based on the aging curve. Therefore, a The aging ratio curve corresponds to a steering angle-aging value coordinate diagram, and all aging values within the preset angle range are extracted from the steering angle-aging value coordinate diagram corresponding to the aging ratio curve, Thus, the historical aging matrix interval corresponding to the steering angle, or the matrix window corresponding to the steering angle is generated.

The invention realizes that the preset angle interval is generated by the angle adjacent to the steering angle, and based on the preset angle interval, the historical aging matrix interval is automatically generated, and the measured aging value is effectively judged through the historical aging matrix interval. Set the aging value within the range of the angle range to be close to each other, and there will not be too large or too small. If the aging value is too large or too small, it is a wrong sampling, which is an invalid aging value. In this way, the measured aging value can be automatically measured. Judging whether it is valid or not, improves the accuracy and reliability of the aging value, and avoids the influence of the outputted aging value on the output aging detection result.

When the measured aging value falls within the historical aging matrix interval, the aging proportion curve is updated according to the measured aging value.

Understandably, if the measured aging value falls within the range of the historical aging matrix, the measured aging value is added to the aging curve corresponding to the aging proportion curve, so as to update the aging curve, and then update the updated aging curve. Calculate the quotient between the aging curve and the preset life curve, and update the current aging proportion curve with the result of the quotient.

In one embodiment, the updating the aging ratio curve according to the measured aging value includes:

The measured aging value is added to the aging curve corresponding to the aging proportion curve.

Understandably, in the steering angle-aging value graph corresponding to the aging ratio curve, the measured aging value is added to the steering angle corresponding to the measured aging value, and all the steering angles corresponding to the same steering angle are added. The aging value is accumulated to obtain the cumulative aging value of the steering angle, and the aging curve obtained by continuously connecting the cumulative aging values of all steering angles. The process of continuous connection can be filtering, summation weighting, and interpolation mean square processing. Convert discrete points into continuous curves to obtain the added aging curve, and store the aging curve.

The aging proportion curve is updated according to the aging curve after adding the measured aging value and the preset life curve.

Understandably, the life curve is a curve of all steering angles depicted by the life values corresponding to each steering angle obtained statistically according to the experimental data. The cumulative aging value in the increased aging curve under the same steering angle is The quotient of the life values in the life curve is used to obtain the aging proportion value of the steering angle, and all the aging proportion values are summarized and connected, so as to update the original aging proportion curve, obtain a new aging proportion curve, and store it. The aging proportion curve can be called or acquired when a new steering angle is triggered subsequently, and the aging proportion curve can be updated in time to facilitate the subsequent output of the aging detection result.

Among them, the life value reflects the life degree of the structure in the steering system under a steering angle.

The present invention realizes that by adding the measured aging value to the aging curve corresponding to the aging proportion curve; according to the aging curve after adding the measured aging value and the preset life curve, the aging proportion is updated In this way, the effective measured aging value can be automatically added to the aging curve, and the aging proportion curve can be automatically updated based on the aging curve and the preset life curve.

When the measured aging value does not fall within the historical aging matrix interval, the measured aging value is deleted.

Understandably, if the measured aging value does not fall within the historical aging matrix interval, the measured aging value is eliminated, and the original aging proportion curve is retained, that is, the aging proportion curve remains unchanged.

In one embodiment, in the step S30, that is, determining the aging detection result of the vehicle steering system according to the updated aging ratio curve, including:

Acquire a preset early warning threshold and a maximum aging proportion value in the updated aging proportion curve.

Understandably, the preset early warning threshold is a threshold for setting early warnings or reminders, and the preset early warning thresholds can be set according to requirements. For example, the preset early warning thresholds can be one early warning or reminder value, or can be multiple early warnings or reminders. , the maximum aging proportion value is the largest value among the aging proportion values corresponding to all steering angles in the aging proportion curve.

The aging detection result is determined according to the preset warning threshold and the maximum aging proportion value.

Understandably, when the maximum aging proportion value is greater than or equal to the preset warning threshold, the maximum aging proportion value and the warning information corresponding to the preset warning threshold are used as the aging detection result, and in the When the maximum aging proportion value is smaller than the preset early warning threshold, the maximum aging proportion value is used as the aging detection result. In one embodiment, the preset early warning threshold includes a plurality of preset sub-thresholds, and different The preset sub-threshold corresponds to different early warning information, and the early warning information has high, medium and low priority. When the maximum aging proportion value is greater than or equal to the preset sub-threshold value, the maximum aging proportion value and all the values greater than or equal to the preset The pre-warning information with the highest priority among the pre-warning information corresponding to the sub-thresholds is used as the aging detection result, and when the maximum aging proportion value is less than all preset sub-threshold values, the maximum aging proportion value is used as the aging detection result, In this way, the aging detection result reflects the current aging state or condition of the steering system of the vehicle, and serves as an early warning.

The present invention realizes that the aging detection result is determined according to the preset early warning threshold and the maximum aging proportion by obtaining a preset early warning threshold and the updated maximum aging proportion curve, and thus, It can automatically output the aging detection results of the aging of the vehicle steering system in combination with the preset warning threshold and the maximum aging ratio, so as to achieve the effect of timely warning, ensure the driving safety of the vehicle steering system, and improve the aging detection of the vehicle steering system. The accuracy and reliability of the resulting output.

In one embodiment, a vehicle steering system aging detection device is provided, and the vehicle steering system aging detection device is in one-to-one correspondence with the vehicle steering system aging detection method in the above embodiment. As shown in FIG. 3 , the vehicle steering system aging detection device includes an acquisition module 11 , a determination module 12 and a detection module 13 . The detailed description of each functional module is as follows:

an obtaining module 11, configured to obtain the steering torque value, the steering angle and the aging ratio curve of the vehicle steering system;

a determination module 12, configured to determine a measured aging value according to the aging ratio curve, the steering torque value and the steering angle;

The detection module 13 is configured to update the aging proportion curve based on the measured aging value and the steering angle, and determine the aging of the vehicle steering system according to the aging proportion curve after the update process. Test results.

For specific limitations on the vehicle steering system aging detection device, reference may be made to the above limitations on the vehicle steering system aging detection method, which will not be repeated here. Each module in the above-mentioned vehicle steering system aging detection device may be implemented in whole or in part by software, relevant hardware in the vehicle, and a combination thereof.

The present invention provides a vehicle, including a vehicle steering system and a control module connected to the vehicle steering system, the control module executes the above-mentioned vehicle steering system aging detection method, and the control module is a control module that integrates all processors in the vehicle. Module, the vehicle steering system is a system that controls the movement of the vehicle such as running or reversing.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (10)

1. a vehicle steering system aging detection method, is characterized in that, comprises: Obtain the steering torque value, steering angle and aging ratio curve of the vehicle steering system; determining a measured aging value according to the aging ratio curve, the steering torque value and the steering angle; Based on the measured aging value and the steering angle, an update process is performed on the aging proportion curve, and an aging detection result of the vehicle steering system is determined according to the updated aging proportion curve. 2 . The aging detection method of a vehicle steering system according to claim 1 , wherein the determining and measuring the aging value according to the aging ratio curve, the steering torque value and the steering angle, comprising: 2 . Determine the aging proportion value to be processed according to the aging proportion curve and the steering angle; Determine the aging coefficient corresponding to the to-be-processed aging proportion value according to the preset aging coefficient comparison table; The measured aging value is determined from the aging factor, the steering torque value and the steering angle. 3 . The aging detection method for a vehicle steering system according to claim 2 , wherein the determining the measured aging value according to the aging coefficient, the steering torque value and the steering angle comprises: 3 . The measured aging value is obtained according to the aging coefficient, the steering torque value, the steering angle and a preset aging function. 4. The aging detection method of a vehicle steering system according to claim 3, wherein the preset aging function is: y=T×θ×k in, y is the measured aging value; T is the steering torque value; θ is the steering angle; k is the aging coefficient. 5 . The aging detection method of a vehicle steering system according to claim 1 , wherein the updating of the aging ratio curve based on the measured aging value and the steering angle comprises: 5 . judging whether the measured aging value falls within the historical aging matrix interval corresponding to the steering angle; When the measured aging value falls within the historical aging matrix interval, updating the aging proportion curve according to the measured aging value; When the measured aging value does not fall within the historical aging matrix interval, the measured aging value is deleted. 6. The aging detection method for a vehicle steering system according to claim 5, wherein the judging whether the measured aging value falls before the historical aging matrix interval corresponding to the steering angle comprises: obtaining a preset angle interval corresponding to the steering angle; The historical aging matrix interval is generated according to the preset angle interval and the aging ratio curve. 7 . The aging detection method of a vehicle steering system according to claim 5 , wherein the updating the aging proportion curve according to the measured aging value comprises: 8 . adding the measured aging value to an aging curve corresponding to the aging proportion curve; The aging proportion curve is updated according to the aging curve after adding the measured aging value and the preset life curve. 8 . The aging detection method of the vehicle steering system according to claim 7 , wherein the determining the aging detection result of the vehicle steering system according to the updated aging proportion curve comprises: 8 . obtaining a preset early warning threshold and a maximum aging proportion value in the updated aging proportion curve; The aging detection result is determined according to the preset warning threshold and the maximum aging proportion value. 9. A vehicle steering system aging detection device, characterized in that, comprising: The acquisition module is used to acquire the steering torque value, steering angle and aging ratio curve of the vehicle steering system; a determining module, configured to determine a measured aging value according to the aging ratio curve, the steering torque value and the steering angle; a detection module, configured to update the aging proportion curve based on the measured aging value and the steering angle, and determine the aging detection of the vehicle steering system according to the aging proportion curve after the update process result. 10. A vehicle, comprising a vehicle steering system and a control module connected to the vehicle steering system, the control module executing the aging detection method for a vehicle steering system according to any one of claims 1 to 8.

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