Audio-based whole vehicle posture adjustment method and system, and new energy vehicle

Abstract

The application provides an audio-based whole vehicle posture adjusting method and system and a new energy vehicle, and the method comprises the following steps: (1) receiving a vibration frequency and an amplitude of a currently played audio; (2) controlling the inflation amount of the air spring sliding column in all air springs based on the vibration frequency and the amplitude of the currently played audio, so that the vehicle height automatically changes with the vibration frequency and the amplitude of the currently played audio. When the vehicle plays music, the vehicle posture (height) automatically adjusts with the vibration frequency and the amplitude of the currently played music, the music playing matches the rhythm of the vehicle, the individual needs of the user are met, and the user experience is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of whole vehicle posture control, and provides a whole vehicle posture adjustment method and system based on audio and a new energy vehicle. BACKGROUND

[0002] With the continuous development of science and technology, the functions of automobiles are increasingly focused on user experience. Automobiles are not only basic means of transportation for people, but also require higher driving comfort and intelligence.

[0003] The automobile chassis is one of the four most important components of an automobile. It not only bears the load of the whole vehicle and receives power input to make the vehicle travel in the direction intended by the driver. In order to improve the comfort of the vehicle during driving and reduce the vibration sensation during driving as much as possible, large automobile manufacturers use the combination of air springs and CDC shock absorbers in their high-end brand series to make the driver feel a better shock absorption experience brought by the automobile chassis.

[0004] Currently, the development of air spring active suspension mostly focuses on shock absorption effect, and there is a problem of single function of air spring active suspension. SUMMARY

[0005] In view of this, the present application provides a whole vehicle posture adjustment method based on audio, aiming to improve the above problems.

[0006] Specifically, the technical scheme includes the following:

[0007] On the one hand, the present application provides a whole vehicle posture adjustment method based on audio, which includes the following steps:

[0008] (1) receiving the vibration frequency and amplitude of the currently played audio;

[0009] (2) controlling the inflation amount of the air spring piston in all air springs based on the vibration frequency and amplitude of the currently played audio, so that the vehicle height automatically changes with the vibration frequency and amplitude of the currently played audio.

[0010] In some embodiments, the inflation amount control process of the air spring piston is as follows:

[0011] The inflation frequency of the air spring piston is controlled based on the vibration frequency of the currently played audio, and the vehicle height is controlled based on the amplitude of the currently played audio.

[0012] In some embodiments, the control process of the vehicle height is as follows:

[0013] extracting the amplitude of the currently played audio, determining a vehicle height corresponding to the amplitude of the currently played audio, determining an air spring and slide column inflation amount required by the current vehicle height, and controlling the air spring and slide column to inflate or deflate so that the inflation amount in the air spring and slide column reaches the inflation amount required by the current vehicle height.

[0014] In some embodiments, the process of determining the vehicle height corresponding to the amplitude of the currently played audio is specifically as follows:

[0015] determining the lowest height and the highest height of the vehicle from the ground to form a height interval for vehicle posture adjustment;

[0016] calibrating the minimum amplitude corresponding to the lowest height and the maximum amplitude corresponding to the highest height in the height interval to construct a linear relationship between the vehicle height and the audio amplitude;

[0017] calculating the vehicle height corresponding to the amplitude of the currently played audio based on the linear relationship.

[0018] In some embodiments, the air spring and slide column inflation amount required by different vehicle heights in the height interval is formed into a vehicle height-air spring and slide column inflation amount mapping table, and the air spring and slide column inflation amount required by the current vehicle height is read from the vehicle height-air spring and slide column inflation amount mapping table.

[0019] In some embodiments, after triggering the whole vehicle posture adjustment mode, it is detected whether the entering condition of the whole vehicle posture adjustment mode is met, and if so, the vehicle enters the whole vehicle posture adjustment mode and executes the above steps (1) and (2).

[0020] The entering condition of the whole vehicle posture adjustment mode is that the vehicle is in a static state, the gear is in N range, and the whole vehicle high voltage is powered on.

[0021] In some embodiments, the audio signal is an audio signal currently played at the vehicle end.

[0022] In some embodiments, the process of controlling the inflation amount of the air spring and slide column is specifically as follows:

[0023] The air spring and slide column is connected with the gas storage tank through a pipeline, a gas supply unit is arranged on the pipeline, when it is detected that the current inflation amount of the air spring and slide column is insufficient, the gas inlet of the gas supply unit is opened, the gas in the gas storage tank is filled into the air spring and slide column through the pipeline until the inflation amount in the air spring and slide column reaches the required inflation amount, and the gas inlet is closed.

[0024] When it is detected that the current inflation amount of the air spring and slide column is excessive, the gas outlet of the gas supply unit and the gas pump are opened, the gas in the air spring and slide column is pumped back to the gas storage tank through the gas pump until the inflation amount in the air spring and slide column reaches the required inflation amount, and the gas outlet of the gas supply unit and the gas pump are closed.

[0025] In another aspect, the embodiment of the present application provides an audio-based vehicle posture adjustment system, which comprises:

[0026] The domain controller DCU, the air spring controller ASU, four air spring pistons, the information processing center ICC, and the power amplifier, the domain controller DCU is connected with the power amplifier through the information processing center ICC, the domain controller DCU is in communication connection with the air spring controller ASU, and the air spring controller ASU is used for controlling the inflation amount of the four air spring pistons.

[0027] The domain controller DCU receives and extracts the vibration frequency and amplitude of the currently played audio at the vehicle end, and sends them to the air spring controller ASU, and the air spring controller ASU adjusts the inflation amount in the four air spring pistons based on the above-mentioned audio-based vehicle posture adjustment method to control the change of the vehicle height with the vibration frequency and amplitude of the currently played audio.

[0028] In another aspect, the embodiment of the present application provides a new energy vehicle, and the new energy vehicle is integrated with the above-mentioned audio-based vehicle posture adjustment system.

[0029] When the vehicle plays music, the vehicle posture (height) is automatically adjusted with the vibration frequency and amplitude of the currently played music, the music playing is coordinated with the rhythm of the vehicle, the individual needs of the user are met, and the user experience is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 The audio-based vehicle posture adjustment method flowchart provided by the embodiment of the present application;

[0032] Figure 2 The structural schematic diagram of the audio-based vehicle posture adjustment system provided by the embodiment of the present application;

[0033] Through the above-mentioned drawings, the specific embodiments of the present application have been shown, and more detailed descriptions will be given in the following. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0034] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of the present application.

[0035] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those of ordinary skill in the art.

[0036] Figure 1 A flow chart of an audio-based whole vehicle posture adjustment method provided by the embodiments of the present application is provided, and the method comprises the following steps:

[0037] (1) receiving a vibration frequency and amplitude of currently played audio;

[0038] (2) synchronously controlling inflation amounts of all air spring sliding columns based on the vibration frequency and amplitude of the currently played audio, so that the vehicle height is automatically adjusted with the vibration frequency and amplitude of the audio.

[0039] In the embodiments of the present application, the new energy vehicle has four air suspensions, and the air springs in the air suspensions are mainly used for damping. The damping of the air spring is adjusted by the inflation amount of the air spring sliding column in the air spring, and the adjustment of the damping of the air spring realizes the adjustment of the vehicle height. In order to ensure the stability and safety of the vehicle, the damping of the four air springs is synchronously adjusted, the rhythm and amount of change of the vehicle height realize the adjustment of the vehicle posture with the currently played music, and the control methods of the inflation amounts of the air spring sliding columns in the four air springs are the same. The control method of the inflation amount of one air spring sliding column is taken as an example for description.

[0040] In the embodiments of the present application, the control process of the inflation amount of the air spring sliding column is as follows:

[0041] The inflation frequency of the air spring sliding column is controlled based on the vibration frequency of the currently played audio, and the vehicle height is controlled based on the amplitude of the currently played audio. The vehicle height is detected by the height sensor arranged on the vehicle chassis. The control process of the vehicle height is described in detail as follows:

[0042] The amplitude of the currently played audio is extracted, the vehicle height corresponding to the amplitude of the currently played audio is determined, and then the inflation amount of the air spring sliding column required by the current vehicle height is determined. The air spring sliding column is controlled to inflate or deflate, so that the inflation amount in the air spring sliding column reaches the inflation amount required by the current vehicle height.

[0043] In the embodiments of the present application, the determination process of the vehicle height corresponding to the amplitude of the currently played audio is as follows:

[0044] Firstly, the lowest height and the highest height of the vehicle from the ground are determined, and a height interval for vehicle posture adjustment is formed based on the lowest height and the highest height; secondly, the minimum amplitude corresponding to the lowest height and the maximum amplitude corresponding to the highest height in the height interval are calibrated, and a linear relationship between the vehicle height and the audio amplitude is constructed; finally, the vehicle height corresponding to the amplitude of the currently played audio is calculated based on the linear relationship.

[0045] After obtaining the vehicle height required for the amplitude of the currently played audio, since the vehicle height is controlled by the inflation amount of the air spring sliding column, the air spring sliding column inflation amount required for the vehicle height needs to be obtained, and the air spring sliding column inflation amount required for the current vehicle height is read from the vehicle height-air spring sliding column inflation amount mapping table, the air spring sliding column inflation amount required for different vehicle heights in the height interval is calibrated, and the vehicle height-air spring sliding column inflation amount mapping table is formed, of course, the air spring damping required for different vehicle heights in the height interval can also be obtained by calculation, and then the air spring sliding column inflation amount required for the corresponding air spring damping is determined.

[0046] In the embodiment of the present application, the vehicle adjusts the vehicle posture based on the audio signal only after entering the whole vehicle posture adjustment mode, after triggering the whole vehicle posture adjustment mode, it is detected whether the vehicle currently meets the entering condition of the whole vehicle posture adjustment mode, if yes, the vehicle enters the whole vehicle posture adjustment mode and executes the above steps (1) and (2), if not, the vehicle cannot enter the whole vehicle posture adjustment mode, that is, the vehicle cannot adjust the vehicle posture according to the audio. When the entering condition of the vehicle posture adjustment mode is not met, the whole vehicle posture adjustment mode is automatically exited, when the entering condition of the vehicle posture adjustment mode is met, the whole vehicle posture adjustment mode is exited based on the whole vehicle posture adjustment mode exit operation, and when the whole vehicle posture adjustment mode is exited, the vehicle height is restored to the set initial value, which is located in the height interval.

[0047] The entering condition of the whole vehicle posture adjustment mode is that (1) the vehicle is in a static state, (2) the gear is in N gear, and (3) the whole vehicle high-voltage power-on state.

[0048] In the embodiment of the present application, the above-mentioned audio is music audio, external music audio is input into the vehicle end through the vehicle-mounted Bluetooth, and the input music audio is sent to the processing center ICC after being converted into an Ethernet signal through the VCC. The processing center ICC plays the music audio through the power amplifier, and simultaneously forwards the currently played music audio to the controller DCU. Or, the music audio played by the vehicle end is sent to the domain controller DCU through the T-BOX after being converted into an Ethernet signal through the VCC. The domain controller DCU is sent to the power amplifier through the processing center ICC for playing. Simultaneously, the domain controller DCU analyzes the received currently played audio, extracts the vibration frequency and amplitude of the previously played audio, and sends them to the air spring controller ASU. The air spring controller ASU controls the inflation amount of the air spring slide column (air spring slide column) in the air spring. At the same time of playing music, the vehicle height is adaptively changed with the vibration frequency and amplitude of the music, meeting the personalized needs of users and greatly improving the user experience.

[0049] In the embodiment of the present application, the control process of the inflation amount of the air spring slide column is as follows:

[0050] The air spring slide column is connected with the gas storage tank through a pipeline, and a gas supply unit is arranged on the pipeline. When it is detected that the inflation amount of the air spring slide column is insufficient, the air spring slide column needs to be inflated. The air inlet of the gas supply unit and the air pump are opened, the gas in the gas storage tank is pumped into the air spring slide column through the air pump, until the inflation amount in the air spring slide column reaches the required inflation amount, and the air inlet and the air pump are closed. When it is detected that the inflation amount of the air spring slide column is too much, the air spring slide column needs to be deflated. The air outlet of the gas supply unit and the air pump are opened, the gas in the air spring slide column is pumped back to the gas storage tank through the air pump, until the gas amount in the air spring slide column reaches the required inflation amount, and the air outlet of the gas supply unit and the air pump are closed. The gas amount in the air spring slide column is monitored by the pressure sensor arranged in the air spring slide column.

[0051] In order to further meet the personalized needs of users, only the inflation amount change of the air spring slide column at the front end or the rear end of the vehicle can be controlled, and the vehicle pose is adjusted through the height change of the front end or the rear end of the vehicle. In order to ensure the safety of the vehicle, the adjustment range of the height interval for vehicle pose adjustment is small at this time, and the front end or the rear end of the vehicle is controlled to vibrate in a small height interval. The control process of the inflation amount in the air spring slide column is the same as the above-mentioned method, which will not be described herein again.

[0052] Figure 2 The structure schematic diagram of the whole vehicle pose adjustment system based on audio provided by the embodiment of the present application is shown in the figure. For the convenience of description, only the parts related to the embodiment of the present application are shown. The system comprises:

[0053] The domain controller DCU, the air spring controller ASU, four air spring pistons, the information processing center ICC and the power amplifier, wherein the domain controller DCU is connected with the power amplifier through the information processing center ICC, the domain controller DCU is in communication connection with the air spring controller ASU, and the air spring controller ASU is used for controlling the air volume of the four air spring pistons.

[0054] The domain controller DCU receives and extracts the vibration frequency and amplitude of the currently played audio at the vehicle end, and sends the vibration frequency and amplitude to the air spring controller ASU, and the air spring controller ASU adjusts the air volume in the four air spring pistons based on the above-mentioned audio-based vehicle posture adjustment method, so as to control the vehicle height to change with the vibration frequency and amplitude of the currently played audio, and when the music is played, the vehicle posture (height) is automatically adjusted with the vibration frequency and amplitude of the currently played music, the music playing is coordinated with the rhythm of the vehicle, the individual needs of the user are met, and the experience of the user is greatly improved.

[0055] In the embodiment of the application, the audio is music audio, which is not limited to the music currently played at the vehicle end, but also includes the music sent to the vehicle through the Bluetooth at the vehicle end, and the music data is sent to the domain controller DCU for analysis of the vibration frequency and amplitude of the currently played audio.

[0056] In another embodiment of the application, the application further provides a new energy vehicle, and the new energy vehicle is integrated with the above-mentioned audio-based vehicle posture adjustment system, after the user triggers the vehicle posture adjustment mode, it is detected whether the entering condition of the vehicle posture adjustment mode is met, and in the case of meeting the condition, the vehicle posture adjustment mode is entered, and when the music is played, the vehicle posture (height) is automatically adjusted with the vibration frequency and amplitude of the currently played music, the music playing is coordinated with the rhythm of the vehicle, the individual needs of the user are met, and the experience of the user is greatly improved.

[0057] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the application be limited only by the scope of the claims, including any appropriate amendments thereof, and that there be accounted to support such claims and thereof as fairly include what is needed for patentability by virtue of priority to and antedating the disclosure of the present application. The specification and examples given herein are to be considered merely as exemplifications of the application.

[0058] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is to be limited only by the claims appended hereto.

Claims

1. A method for audio-based vehicle attitude adjustment, characterized in that, The method comprises the following steps: (1) receiving the vibration frequency and amplitude of the currently played audio; (2) controlling the inflation amount of the air spring slide column in all air springs based on the vibration frequency and amplitude of the currently played audio, so that the vehicle height automatically changes with the vibration frequency and amplitude of the currently played audio; The inflation amount control process of the air spring slide column is as follows: The inflation frequency of the air spring slide column is controlled based on the vibration frequency of the currently played audio, and the vehicle height is controlled based on the amplitude of the currently played audio; The control process of the vehicle height is as follows: The amplitude of the currently played audio is extracted, the vehicle height corresponding to the amplitude of the currently played audio is determined, the inflation amount of the air spring slide column required by the current vehicle height is determined, and the air spring slide column is controlled to inflate or deflate, so that the inflation amount in the air spring slide column reaches the inflation amount required by the current vehicle height; The vehicle height corresponding to the amplitude of the currently played audio is determined as follows: The lowest height and the highest height of the vehicle from the ground are determined to form a height interval for vehicle posture adjustment; The minimum amplitude corresponding to the lowest height and the maximum amplitude corresponding to the highest height in the height interval are calibrated to construct a linear relationship between the vehicle height and the audio amplitude; The vehicle height corresponding to the amplitude of the currently played audio is calculated based on the linear relationship; The inflation amount of the air spring slide column required by different vehicle heights in the height interval is calibrated to form a vehicle height-air spring slide column inflation amount mapping table, and the inflation amount of the air spring slide column required by the current vehicle height is read from the vehicle height-air spring slide column inflation amount mapping table.

2. The method of claim 1, wherein the audio-based vehicle attitude adjustment is based on a frequency of the audio signal. After triggering the whole vehicle posture adjustment mode, it is detected whether the entering condition of the whole vehicle posture adjustment mode is met, and if so, the vehicle enters the whole vehicle posture adjustment mode and executes the above steps (1) and (2); The entering condition of the whole vehicle posture adjustment mode is that the vehicle is in a static state, the gear is in N gear, and the whole vehicle high voltage is powered on.

3. The method of claim 1, wherein the audio-based vehicle attitude adjustment is based on a frequency of the audio signal. The audio signal is the currently played audio signal at the vehicle end.

4. The audio-based vehicle attitude adjustment method of claim 1, wherein, The inflation amount control process of the air spring slide column is as follows: The air spring slide column is connected to the gas storage tank through a pipeline, and a gas supply unit is arranged on the pipeline. When it is detected that the current inflation amount of the air spring slide column is insufficient, the gas inlet of the gas supply unit is opened, the gas in the gas storage tank is filled into the air spring slide column through the pipeline, and the inflation amount in the air spring slide column reaches the required inflation amount, and the gas inlet is closed; When it is detected that the current inflation amount of the air spring slide column is excessive, the gas outlet of the gas supply unit and the gas pump are opened, the gas in the air spring slide column is pumped back to the gas storage tank through the gas pump, and the inflation amount in the air spring slide column reaches the required inflation amount, and the gas outlet of the gas supply unit and the gas pump are closed.

5. An audio-based vehicle attitude adjustment system, characterized in that, The system comprises: a domain controller DCU, an air spring controller ASU, four air spring slide columns in four air springs, an information processing center ICC, and a power amplifier, the domain controller DCU is connected with the power amplifier through the information processing center ICC, the domain controller DCU is in communication connection with the air spring controller ASU, and the air spring controller ASU is used for controlling the inflation amount of the four air spring slide columns; The domain controller DCU receives and extracts the vibration frequency and amplitude of the currently played audio at the vehicle end, and sends them to the air spring controller ASU. The air spring controller ASU adjusts the air volume in the four air spring sliding columns based on the audio-based vehicle posture adjustment method of any one of claims 1 to 4, to control the change of the vehicle height with the vibration frequency and amplitude of the currently played audio.

6. A new energy vehicle, characterized in that, The new energy vehicle is integrated with the audio-based vehicle posture adjustment system of claim 5.

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