Vehicle attitude adjusting method and system based on audio and new energy vehicle

Abstract

The invention provides a whole vehicle posture adjusting method and system based on audios and a new energy vehicle. The method comprises the following steps that (1) the vibration frequency and the amplitude of the currently played audios are received; and (2) based on the vibration frequency and the amplitude of the currently played audio, controlling the inflation volume of hollow spring sliding columns in all air springs, so that the height of the vehicle automatically changes along with the vibration frequency and the amplitude of the currently played audio. When the vehicle plays the music, the posture (height) of the vehicle is automatically adjusted along with the vibration frequency and amplitude of the currently played music, music playing is matched with rhythm of the vehicle, and the user experience is greatly improved while the personality requirement of a user is met.

Description

Technical Field

[0001] The present invention 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 Art

[0002] With the continuous development of science and technology, the functions of automobiles are increasingly focused on user experience. Automobiles are not just a basic means of transportation for people to travel, but also put forward higher requirements for driving comfort and intelligence of automobiles.

[0003] As one of the four most important components of a car, the chassis not only bears the load of the entire vehicle and receives power input, allowing the vehicle to travel in the direction of the driver's control intention, but also improves the comfort of the vehicle during driving and reduces the vibration during driving as much as possible. Major automobile companies are using a combination of air springs and shock absorbers CDC in their high-end brand series, allowing drivers to feel the better shock absorption and buffering experience brought by the car chassis.

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

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

[0006] Specifically, the following technical solutions are included:

[0007] On the one hand, an embodiment of the present application provides a vehicle posture adjustment method based on audio, the method comprising the following steps:

[0008] (1) Receive the vibration frequency and amplitude of the currently playing audio;

[0009] (2) Based on the vibration frequency and amplitude of the currently playing audio, the inflation amount of the hollow spring slide of all air springs is controlled so that the height of the vehicle automatically changes with the vibration frequency and amplitude of the currently playing audio.

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

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

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

[0013] Extract the amplitude of the currently playing audio, determine the vehicle height corresponding to the amplitude of the currently playing audio, determine the air inflation amount of the air spring slide required for the current vehicle height, and control the air spring slide to inflate or deflate so that the air inflation amount in the air spring slide reaches the air inflation amount required for the current vehicle height.

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

[0015] Determine the minimum and maximum heights of the vehicle from the ground to form a height range for adjusting the vehicle's posture;

[0016] The minimum amplitude corresponding to the lowest height and the maximum amplitude corresponding to the highest height in the calibration height range are used to establish a linear relationship between vehicle height and audio amplitude.

[0017] The vehicle height corresponding to the amplitude of the currently playing audio is calculated based on the linear relationship.

[0018] In some embodiments, the air volume of the air spring slide required for different vehicle heights within a calibrated height range is formed to form a vehicle height-air volume mapping table of the air spring slide, and the air volume of the air spring slide required for the current vehicle height is read from the vehicle height-air volume mapping table of the air spring slide.

[0019] In some embodiments, after the whole vehicle posture adjustment mode is triggered, it is detected whether the entry conditions of the whole vehicle posture adjustment mode are currently met. If so, the vehicle enters the whole vehicle posture adjustment mode and executes the above steps (1) and (2);

[0020] The entry conditions for the vehicle posture adjustment mode are: the vehicle is in a stationary state, the gear is in N gear, and the vehicle is in high voltage power-on state.

[0021] In some embodiments, the audio signal is an audio signal currently being played on the vehicle side.

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

[0023] The empty spring slide is connected to the air tank through a pipeline, and an air supply unit is arranged on the pipeline. When it is detected that the current air volume of the empty spring slide is insufficient, the air inlet of the air supply unit is opened, and the gas in the air tank is poured into the empty spring slide through the pipeline until the air volume in the empty spring slide reaches the required air volume, and then the air inlet is closed;

[0024] When it is detected that the current inflation volume of the empty spring strut is too much, open the air outlet and air pump of the air supply unit, and use the air pump to draw the gas in the empty spring strut back to the air tank until the inflation volume in the empty spring strut reaches the required inflation volume, and then close the air outlet and air pump of the air supply unit.

[0025] On the other hand, an embodiment of the present application provides an audio-based vehicle posture adjustment system, wherein the system comprises:

[0026] The domain controller DCU, the air spring controller ASU, the four air spring slide columns in the four air springs, the information processing center ICC and the power amplifier. The domain controller DCU is connected to the power amplifier through the information processing center ICC. The domain controller DCU is connected to the air spring controller ASU for communication. The air spring controller ASU is used to control the inflation amount of the four air spring slide columns.

[0027] The domain controller DCU receives and extracts the vibration frequency and amplitude of the audio currently being played on the vehicle side, and sends it to the air spring controller ASU. The air spring controller ASU adjusts the inflation volume in the four air spring slides based on the above-mentioned audio-based vehicle posture adjustment method to control the vehicle height to change with the vibration frequency and amplitude of the currently playing audio.

[0028] On the other hand, an embodiment of the present application provides a new energy vehicle, on which the above-mentioned audio-based vehicle posture adjustment system is integrated.

[0029] When the vehicle is playing music, the vehicle posture (height) is automatically adjusted according to the vibration frequency and amplitude of the currently playing music. The music playback is coordinated with the rhythm of the vehicle, which satisfies the user's individual needs while greatly improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A flow chart of a vehicle posture adjustment method based on audio provided by an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of the structure of the vehicle posture adjustment system based on audio provided in an embodiment of the present invention;

[0033] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this 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 a vehicle posture adjustment method based on audio provided by an embodiment of the present invention, the method comprising the following steps:

[0037] (1) Receive the vibration frequency and amplitude of the currently playing audio;

[0038] (2) Based on the vibration frequency and amplitude of the currently playing audio, the inflation volume of all air spring slides is synchronously controlled so that the vehicle height is automatically adjusted according to the vibration frequency and amplitude of the audio.

[0039] In an embodiment of the present invention, the new energy vehicle has four air suspensions, and the air springs in the air suspensions are mainly used for shock absorption. The damping of the air springs is adjusted by the inflation amount of the hollow spring slide column in the air springs, and the damping adjustment of the air springs 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 adjusted synchronously, and the vehicle posture is adjusted according to the currently playing music through the changing rhythm and amount of height. The control method of the inflation amount of the hollow spring slide columns of the four air springs is the same. The present invention takes the inflation amount control method of one of the empty spring slide columns as an example for explanation.

[0040] In the embodiment of the present invention, the inflation amount control process of the empty spring strut is specifically as follows:

[0041] 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 vehicle height is detected by a height sensor provided on the vehicle chassis. The control process of the vehicle height is described in detail below. The specific control process is as follows:

[0042] Extract the amplitude of the currently playing audio, determine the vehicle height corresponding to the amplitude of the currently playing audio, then determine the inflation amount of the air spring slide required for the current vehicle height, and control the air spring slide to inflate or deflate so that the inflation amount in the air spring slide reaches the inflation amount required for the current vehicle height.

[0043] In the embodiment of the present invention, the process of determining the vehicle height corresponding to the amplitude of the currently played audio is specifically as follows:

[0044] First, determine the lowest and highest heights of the vehicle from the ground, and form a height range for vehicle posture adjustment based on the lowest and highest heights; secondly, calibrate the minimum amplitude corresponding to the lowest height and the maximum amplitude corresponding to the highest height in the height range, and construct a linear relationship between vehicle height and audio amplitude; finally, calculate the vehicle height corresponding to the amplitude of the currently playing audio based on the above linear relationship.

[0045] After obtaining the vehicle height required for the amplitude of the currently playing audio, since the vehicle height is controlled by the inflation amount of the air spring slide, it is necessary to know the inflation amount of the air spring slide required for the vehicle height. The present invention reads the inflation amount of the air spring slide required for the current vehicle height from a vehicle height-inflation amount mapping table of air spring slide, calibrates the inflation amount of the air spring slide required for different vehicle heights within the height range, and forms a vehicle height-inflation amount mapping table of air spring slide. Of course, the vehicle height-inflation amount mapping table of air spring slide can also be used to obtain the air spring damping required for different vehicle heights within a certain height range by calculation, and then determine the inflation amount of the air spring slide required to obtain the corresponding air spring damping.

[0046] In an embodiment of the present invention, the vehicle will adjust the vehicle posture based on the audio signal only after entering the vehicle posture adjustment mode. After the vehicle posture adjustment mode is triggered, it is detected whether the vehicle currently meets the entry conditions of the vehicle posture adjustment mode. If so, the vehicle enters the vehicle posture adjustment mode and executes the above steps (1) and (2). If not, the vehicle cannot enter the vehicle posture adjustment mode, that is, the vehicle cannot adjust the vehicle posture according to the audio. When the entry conditions of the vehicle posture adjustment mode are not met, the vehicle automatically exits the vehicle posture adjustment mode. When the entry conditions of the vehicle posture adjustment mode are met, the vehicle exits the vehicle posture adjustment mode based on the vehicle posture adjustment mode exit operation. When exiting the vehicle posture adjustment mode, the vehicle height is restored to the set initial value, which is within the height range.

[0047] The conditions for entering the vehicle posture adjustment mode are: (1) the vehicle is in a stationary state, (2) the gear is in N gear, and (3) the vehicle is in a high-voltage power-on state.

[0048] In an embodiment of the present invention, the above-mentioned audio is music audio, and the external music audio is input into the vehicle through the vehicle-mounted Bluetooth. The input music audio is converted into an Ethernet signal through VCC and then sent to the processing center ICC. The processing center ICC plays the music audio through the power amplifier and forwards the currently played music audio to the controller DCU. Alternatively, the music audio played on the vehicle side is converted into an Ethernet signal through VCC and then sent to the domain controller DCU through T-BOX. The domain controller DCU sends it to the power amplifier through the processing center ICC for playback. At the same time, the domain controller DCU parses the currently played audio received, extracts the vibration frequency and amplitude of the previously played audio, and sends it to the air spring controller ASU. The air spring controller ASU controls the inflation amount of the hollow spring slide column (air spring slide column) in the air spring. While playing music, the vehicle height changes adaptively with the vibration frequency and amplitude of the music, which meets the user's personalized needs and greatly improves the user experience.

[0049] In the embodiment of the present invention, the control process of the air filling amount of the empty spring sliding column is as follows:

[0050] The air spring slide is connected to the air tank through a pipeline, and an air supply unit is arranged on the pipeline. When it is detected that the air volume of the air spring slide is insufficient, the air spring slide needs to be inflated, the air inlet and the air pump of the air supply unit are opened, and the gas in the air tank is pumped into the air spring slide through the air pump until the air volume in the air spring slide reaches the required air volume, and the air inlet and the air pump are closed; when it is detected that the air volume of the air spring slide is excessive, it is necessary to deflate the air spring slide, the air outlet and the air pump of the air supply unit are opened, and the gas in the air spring slide is drawn back to the air tank through the air pump until the gas volume in the air spring slide reaches the required air volume, and the air outlet and the air pump of the air supply unit are closed. The gas volume in the air spring slide is monitored by a pressure sensor arranged in the air spring slide.

[0051] In order to further meet the individual needs of users, only the inflation amount of the hollow spring slide column at the front or rear end of the vehicle can be controlled, and the vehicle posture can be adjusted by changing the height of the front or rear end of the vehicle. In order to ensure the safety of the vehicle, at this time, the adjustment range of the height interval used for vehicle posture adjustment is smaller, and the front or rear end of the vehicle is controlled to vibrate within a smaller height interval. The control process of the inflation amount in the hollow spring slide column of the corresponding air spring is the same as the above method, and will not be repeated in the present invention.

[0052] Figure 2 This is a schematic diagram of the structure of the audio-based vehicle posture adjustment system provided by the embodiment of the present invention. For the convenience of explanation, only the part related to the embodiment of the present invention is shown. The system includes:

[0053] A domain controller DCU, an air spring controller ASU, four air spring slides in four air springs, an information processing center ICC, and a power amplifier, wherein the domain controller DCU is connected to 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 to control the inflation amount of the four air spring slides;

[0054] The domain controller DCU receives and extracts the vibration frequency and amplitude of the audio currently playing on the vehicle side, and sends it to the air spring controller ASU. The air spring controller ASU adjusts the inflation volume in the four air spring slide columns based on the above-mentioned audio-based vehicle posture adjustment method to control the vehicle height to change with the vibration frequency and amplitude of the currently playing audio. When the vehicle is playing music, the vehicle posture (height) is automatically adjusted with the vibration frequency and amplitude of the currently playing music. The music playback coordinates with the rhythm of the vehicle, which meets the user's individual needs while greatly improving the user experience.

[0055] In an embodiment of the present invention, the audio is music audio, which is not limited to the music currently played on the vehicle side, but can also be music sent to the vehicle via the vehicle side Bluetooth. The vehicle side sends the music data to the domain controller DCU to analyze the vibration frequency and amplitude of the currently playing audio.

[0056] In another embodiment of the present invention, the present invention also provides a new energy vehicle, which is integrated with the above-mentioned audio-based vehicle posture adjustment system. After the user triggers the vehicle posture adjustment mode, it detects whether the entry conditions of the vehicle posture adjustment mode are currently met. If met, the vehicle posture adjustment mode is entered. When the vehicle is playing music, the vehicle posture (height) is automatically adjusted according to the vibration frequency and amplitude of the currently playing music. The music playback is coordinated with the rhythm of the vehicle, which meets the user's individual needs while greatly improving the user experience.

[0057] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the present application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only.

[0058] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A vehicle posture adjustment method based on audio, characterized in that: The method comprises the following steps: (1) Receive the vibration frequency and amplitude of the currently playing audio; (2) Based on the vibration frequency and amplitude of the currently playing audio, the inflation amount of the hollow spring slide of all air springs is controlled so that the height of the vehicle automatically changes with the vibration frequency and amplitude of the currently playing audio.

2. The vehicle posture adjustment method based on audio according to claim 1, characterized in that: The specific process of controlling the air volume of the air spring slide is as follows: The inflation frequency of the air spring slide is controlled based on the vibration frequency of the currently playing audio, and the vehicle height is controlled based on the amplitude of the currently playing audio.

3. The vehicle posture adjustment method based on audio according to claim 2, characterized in that: The vehicle height control process is as follows: Extract the amplitude of the currently playing audio, determine the vehicle height corresponding to the amplitude of the currently playing audio, determine the air inflation amount of the air spring slide required for the current vehicle height, and control the air spring slide to inflate or deflate so that the air inflation amount in the air spring slide reaches the air inflation amount required for the current vehicle height.

4. The vehicle posture adjustment method based on audio according to claim 3, characterized in that: The process of determining the vehicle height corresponding to the amplitude of the currently playing audio is as follows: Determine the minimum and maximum heights of the vehicle from the ground to form a height range for adjusting the vehicle's posture; The minimum amplitude corresponding to the lowest height and the maximum amplitude corresponding to the highest height in the calibration height range are used to establish a linear relationship between vehicle height and audio amplitude. The vehicle height corresponding to the amplitude of the currently playing audio is calculated based on the linear relationship.

5. The vehicle posture adjustment method based on audio according to claim 3, characterized in that: The air volume of the air spring slide required for different vehicle heights within the calibrated height range is formed to form a vehicle height-air volume mapping table of the air spring slide, and the air volume of the air spring slide required for the current vehicle height is read from the vehicle height-air volume mapping table of the air spring slide.

6. The vehicle posture adjustment method based on audio according to claim 1, characterized in that: After the vehicle posture adjustment mode is triggered, it is detected whether the entry conditions of the vehicle posture adjustment mode are currently met. If so, the vehicle enters the vehicle posture adjustment mode and executes the above steps (1) and (2); The entry conditions for the vehicle posture adjustment mode are: the vehicle is in a stationary state, the gear is in N gear, and the vehicle is in high voltage power-on state.

7. The vehicle posture adjustment method based on audio according to claim 1, characterized in that: The audio signal is the audio signal currently played by the vehicle end.

8. The vehicle posture adjustment method based on audio according to claim 1, characterized in that: The specific process of controlling the air volume of the air spring slide is as follows: The empty spring slide is connected to the air tank through a pipeline, and an air supply unit is arranged on the pipeline. When it is detected that the current air volume of the empty spring slide is insufficient, the air inlet of the air supply unit is opened, and the gas in the air tank is poured into the empty spring slide through the pipeline until the air volume in the empty spring slide reaches the required air volume, and then the air inlet is closed; When it is detected that the current inflation volume of the empty spring strut is too much, open the air outlet and air pump of the air supply unit, and use the air pump to draw the gas in the empty spring strut back to the air tank until the inflation volume in the empty spring strut reaches the required inflation volume, and then close the air outlet and air pump of the air supply unit.

9. A vehicle posture adjustment system based on audio, characterized in that: The system comprises: The domain controller DCU, the air spring controller ASU, the four air spring slide columns in the four air springs, the information processing center ICC and the power amplifier. The domain controller DCU is connected to the power amplifier through the information processing center ICC. The domain controller DCU is connected to the air spring controller ASU for communication. The air spring controller ASU is used to control the inflation amount of the four air spring slide columns. The domain controller DCU receives and extracts the vibration frequency and amplitude of the audio currently being played on the vehicle side, and sends it to the air spring controller ASU. The air spring controller ASU adjusts the inflation volume in the four air spring slides based on the audio-based vehicle posture adjustment method described in any one of claims 1 to 8 to control the vehicle height to change with the vibration frequency and amplitude of the currently playing audio.

10. A new energy vehicle, characterized in that: The new energy vehicle is integrated with the audio-based vehicle posture adjustment system as described in claim 9.

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