A system and method for adjusting steering damping based on an audio frequency analysis device

Abstract

This invention relates to a system and method for adjusting steering damping based on an audio frequency analysis device. The system includes: a stereo head unit configured to play music and determine whether music is being played; a sound acquisition device configured to acquire the sound signal of the playing music; an audio frequency analysis device configured to receive the sound signal of the music acquired by the sound acquisition device and determine whether the acquired music is rhythmic; and a power steering electronic control unit configured to be electrically connected to the audio frequency analysis device to receive the determination result of the audio frequency analysis device and adjust the steering damping based on the received determination result. The system and method according to this invention can increase steering damping when playing rhythmic music, thereby improving safety during aggressive driving caused by rhythmic music.

Description

Technical Field

[0001] This invention relates to the field of vehicle driving control, and more particularly to a system and method for adjusting steering damping based on an audio frequency analysis device. Background Technology

[0002] Many people play music while driving to create a pleasant atmosphere, and some even play upbeat music, such as rock or DJ tracks, to enhance the driving experience. However, when playing upbeat music, drivers may make small movements to the rhythm, potentially leading to steering errors and accidents, significantly impacting driving safety.

[0003] Therefore, a technology is needed that can analyze the sound frequencies of music to determine whether the music is rhythmic (e.g., rock music and DJ music), and optimize steering damping according to the music type, thereby avoiding steering errors and accidents.

[0004] The above description of the background technology is only for the purpose of facilitating a deeper understanding of the technical solution of the present invention (the technical means used, the technical problems solved, and the technical effects produced, etc.), and should not be regarded as an admission or in any form an implication that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention proposes a device and method for adjusting steering damping based on an audio frequency analysis device.

[0006] According to one embodiment of the present invention, a system for adjusting steering damping based on an audio frequency analysis device is provided. The system includes: a sound unit configured to play music and determine whether music is being played; a sound acquisition device configured to acquire the sound signal of the music being played; an audio frequency analysis device configured to receive the sound signal of the music acquired by the sound acquisition device and determine whether the acquired music is rhythmic; and a power steering electronic control unit configured to be electrically connected to the audio frequency analysis device to receive the determination result of the audio frequency analysis device and adjust the steering damping according to the received determination result of the audio frequency analysis device.

[0007] Preferably, the power steering control unit is configured to: increase steering damping when the received determination result signal from the audio analysis device indicates that the collected music is rhythmic; and maintain steering damping when the received determination result signal from the audio analysis device indicates that the collected music is not rhythmic.

[0008] Preferably, the power steering control unit is configured to: when the received audio analysis device determines that the collected music is rhythmic, determine whether the vehicle has a power steering driving mode switching function; if it is determined that the vehicle has a power steering driving mode switching function, then change the driving mode of the power steering to sport mode.

[0009] Preferably, the power steering control unit is configured to: when it is determined that the vehicle is not using the driving mode switching function with power steering, if the power steering is an electric power steering, reduce the input current of the steering motor to increase steering damping; if the power steering is an electro-hydraulic power steering, control the solenoid valve to open to increase steering damping.

[0010] Preferably, the audio frequency analysis device is configured to: perform Fourier transform on the acquired music audio signal; and determine whether the acquired music is rhythmic based on the audio frequency of the Fourier transformed audio signal.

[0011] Preferably, the audio frequency analysis device is configured such that if the audio frequency of the Fourier transform signal is a continuous signal within a time period and a frequency range, then the acquired music is determined to be music with a strong sense of rhythm.

[0012] Preferably, the time period is set to a fixed duration, and the fixed duration ranges from 5s to 10s; the frequency range includes 20Hz to 300Hz.

[0013] Preferably, communication between the audio host, the sound acquisition device, the audio frequency analysis device, and the power steering electronic control unit is performed through a controller local area network.

[0014] According to one embodiment of the present invention, a method for adjusting steering damping based on an audio frequency analysis device is provided. The method includes: playing music by an audio host and determining whether music is being played; acquiring the sound signal of the music being played by a sound acquisition device; receiving the sound signal of the music acquired by the sound acquisition device by an audio frequency analysis device and determining whether the acquired music is rhythmic; receiving the determination result of the audio frequency analysis device by a power steering device electronic control unit and adjusting the steering damping according to the received determination result of the audio frequency analysis device.

[0015] Preferably, when the received determination result signal from the audio frequency analysis device indicates that the collected music is music with a strong rhythm, the power steering electronic control unit increases the steering damping; when the received determination result signal from the audio frequency analysis device indicates that the collected music is not music with a strong rhythm, the power steering electronic control unit maintains the steering damping.

[0016] Preferably, if the received audio analysis device determines that the collected music is rhythmic, the power steering control unit determines whether the vehicle is using the power steering driving mode switching function; if it is determined that the vehicle is using the power steering driving mode switching function, the power steering control unit changes the power steering driving mode to sport mode.

[0017] Preferably, when it is determined that the vehicle is not using the driving mode switching function with power steering, if the power steering is an electric power steering, the power steering control unit reduces the input current of the steering motor to increase steering damping; if the power steering is an electro-hydraulic power steering, the power steering control unit controls the solenoid valve to open to increase steering damping.

[0018] Preferably, the audio signal of the collected music is subjected to Fourier transform by the audio frequency analysis device; based on the sound frequency of the Fourier transformed sound signal, the audio frequency analysis device determines whether the collected music is rhythmic.

[0019] Preferably, if the sound frequency of the Fourier transform sound signal is a continuous signal within a time period and a frequency range, the sound frequency analysis device determines that the acquired music is music with a strong sense of rhythm.

[0020] Preferably, the time period is set to a fixed duration, and the fixed duration ranges from 5s to 10s; the frequency range includes 20Hz to 300Hz.

[0021] Preferably, communication between the audio host, the sound acquisition device, the audio frequency analysis device, and the power steering electronic control unit is performed through a controller local area network.

[0022] The present invention adopts the above technical solution, which has the following beneficial effects:

[0023] This invention can improve safety during aggressive driving caused by upbeat music; it also mitigates steering errors caused by minor driver movements in rhythmic music environments, such as rock music and DJ music, which can unconsciously increase steering wheel angle and lead to steering deviation. The invention increases steering damping when playing upbeat music, thereby improving safety during aggressive driving. Attached Figure Description

[0024] The exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. For clarity, the same components in different drawings are shown with the same reference numerals. It should be noted that the drawings are for illustrative purposes only and are not necessarily drawn to scale. In these drawings:

[0025] Figure 1 This is a block diagram of a system for adjusting steering damping based on an audio frequency analysis device according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of a system for processing music signals based on an audio frequency analysis device for adjusting steering damping, according to an embodiment of the present invention.

[0027] Figure 3 This is a flowchart illustrating the method for adjusting steering damping based on an audio frequency analysis device according to an embodiment of the present invention. Detailed Implementation

[0028] The following provides a detailed description of the embodiments of the present invention. These embodiments are implemented based on the technical solution of the present invention, and provide detailed implementation methods and specific operation processes. However, the scope of protection of the present invention is not limited to the following embodiments.

[0029] Figure 1 A block diagram of a system for adjusting steering damping based on an audio frequency analysis device according to an embodiment of the present invention is shown. The system for adjusting steering damping based on an audio frequency analysis device according to an embodiment of the present invention includes: an audio host 101, a sound acquisition device 102, an audio frequency analysis device 103, and a power steering control unit 104.

[0030] The audio head unit 101 can be installed in a vehicle and integrates an in-vehicle entertainment system that can play music and determine whether music is being played.

[0031] The sound acquisition device 102 can acquire the sound signal of the music being played. The sound acquisition device 102 may include a microphone, but the present invention is not limited thereto.

[0032] The audio analysis device 103 can receive the audio signal of the music collected by the sound acquisition device 102 and determine whether the collected music is rhythmic. Rhythmic music can be, for example, rock music, DJ music, etc.

[0033] The power steering control unit 104 can receive the determination result from the audio analysis device 103 and adjust the steering damping according to the determination result. When the determination result signal received from the audio analysis device 103 indicates that the collected music is not rhythmic, the power steering control unit 104 maintains the steering damping; when the determination result signal received from the audio analysis device 103 indicates that the collected music is rhythmic, the power steering control unit 104 increases the steering damping.

[0034] If the received audio analysis device 103 determines that the collected music is rhythmic, the power steering control unit 104 can determine whether the vehicle is using the power steering driving mode switching function.

[0035] If it is determined that the vehicle has a power steering system with a driving mode switching function, the driving mode of the power steering system is changed to sport mode; if it is determined that the vehicle does not have a power steering system with a driving mode switching function, if the power steering system is an electric power steering system, the power steering system control unit 104 can reduce the input current of the steering motor to increase the steering torque; if the power steering system is an electro-hydraulic power steering system, the power steering system control unit 104 can control the solenoid valve to open to increase the steering torque.

[0036] In addition, vehicle users can disable the audio detection function at the audio head unit 101.

[0037] According to an embodiment of the present invention, communication between the audio host 101, the sound acquisition device 102, the audio frequency analysis device 103 and the power steering control unit 104 can be performed through a controller area network (CAN), but the communication network of the present invention is not limited thereto.

[0038] Therefore, the system for adjusting steering damping based on an audio frequency analysis device according to an embodiment of the present invention determines whether the music being played is rhythmic by analyzing the sound frequencies, especially low frequencies (e.g., 20Hz to 300Hz), and adjusts the steering damping based on whether the music is rhythmic, thereby ensuring the safety of vehicle driving.

[0039] Figure 2 This is a schematic diagram of a system for processing music signals based on an audio frequency analysis device for adjusting steering damping, according to an embodiment of the present invention.

[0040] According to an embodiment of the present invention, the audio host 101 plays music, the sound acquisition device 102 acquires the sound signal of the music being played, the audio frequency analysis device 103 receives the sound signal of the music acquired by the sound acquisition device 102, performs Fourier transform on the acquired sound signal of the music, determines whether the acquired music is rhythmic based on the sound frequency of the Fourier transformed sound signal, and sends the determination result signal to the power steering device control unit 104.

[0041] If the sound frequency of the sound signal after Fourier transform is a continuous signal within a time period and a frequency range, then the acquired music is determined to be rhythmic music, such as rock music or DJ music.

[0042] A time period may include 5 seconds to 10 seconds, but embodiments of the present invention are not limited thereto. A frequency range may include 20 Hz to 300 Hz, but embodiments of the present invention are not limited thereto.

[0043] According to embodiments of the invention, music with sound frequencies in the range of 20Hz to 300Hz has a strong sense of rhythm (e.g., the sound of guitars and drums in rock music), and many DJ tracks also use a lot of heavy bass (e.g., 20Hz to 60Hz), which makes the driver more excited.

[0044] Figure 3 A flowchart illustrating the process of adjusting steering damping based on an audio frequency analysis device according to an embodiment of the present invention is shown.

[0045] like Figure 3 As shown, in step S301, the audio host 101 can play music and determine whether the music is playing. If it is determined that the music is playing, the sound acquisition device 102 is activated. The sound acquisition device 102 acquires the sound signal of the music being played and sends the acquired sound signal of the music to the audio analysis device 103.

[0046] In step S302, the audio analysis device 103 receives the audio signal of the music collected by the sound acquisition device 102 and performs a Fourier transform on the collected audio signal of the music.

[0047] In step S303, the audio frequency analysis device 103 determines whether the collected music is rhythmic based on the sound frequency of the sound signal after Fourier transform. Rhythmic music can be, for example, rock music, DJ music, etc.

[0048] If the sound frequency of the Fourier transform sound signal is a continuous signal within a time period and a frequency range, then the acquired music is determined to be rhythmic.

[0049] A time period may include 5 seconds to 10 seconds, but embodiments of the present invention are not limited thereto. A frequency range may include 20 Hz to 300 Hz, but embodiments of the present invention are not limited thereto.

[0050] If it is determined that the collected music is not rhythmic, then in step S305, the power steering control unit 104 maintains steering damping.

[0051] If it is determined that the collected music is rhythmic, then in step S304, the power steering control unit 104 determines whether the vehicle is using the power steering driving mode switching function.

[0052] If it is determined that the vehicle has a power steering system with a driving mode switching function, then in step S307, the power steering system control unit 104 changes the vehicle driving mode of the power steering system to sport mode.

[0053] If it is determined that the vehicle does not have a driving mode switching function with power steering, then in step S306, the power steering electronic control unit 104 increases steering damping.

[0054] Furthermore, in step S306, when it is determined that the vehicle is not using the driving mode switching function with power steering, if the power steering is an electric power steering, the power steering control unit 104 can reduce the input current of the steering motor to increase the steering torque; if the power steering is an electro-hydraulic power steering, the power steering control unit 104 can control the solenoid valve to open to increase the steering torque.

[0055] In addition, vehicle users can disable the function of adjusting steering damping based on the audio analysis device at the audio head unit 101.

[0056] The method for adjusting steering damping based on an audio analysis device according to an embodiment of the present invention can increase steering damping when playing music with a strong rhythm, thereby improving the safety of aggressive driving caused by music with a strong rhythm.

[0057] Although the exemplary methods of the present invention described above are represented as a series of operations for clarity of description, they are not intended to limit the order of execution of the steps, and each step may be performed simultaneously or in a different desired order. To implement the method according to the invention, the steps shown may further include other steps, including steps other than certain steps, or additional steps other than certain steps.

[0058] The various embodiments of the present invention are not an exhaustive list of all possible combinations, but are intended to describe representative aspects of the invention, and the contents described in the various embodiments can be applied independently or in two or more combinations.

[0059] Furthermore, various embodiments of the present invention can be implemented through hardware, firmware, software, or a combination thereof. The hardware can be implemented using one or more of an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field-programmable gate array (FPGA), a general-purpose processor, a controller, a microcontroller, a microprocessor, etc.

[0060] The scope of this invention is intended to include software or machine-executable instructions (e.g., operating systems, applications, firmware, programs, etc.) and non-volatile computer-readable media, the software or machine-executable instructions causing operations according to various embodiments to be performed on a device or computer, and the non-volatile computer-readable media being executable on a device or computer storing such software or instructions, etc.

[0061] The descriptions of the exemplary embodiments presented above are merely illustrative of the technical solutions of the present invention and are not intended to be exhaustive or to limit the invention to the precise forms described. Obviously, those skilled in the art can make many changes and variations based on the above teachings. The exemplary embodiments were chosen and described to explain the specific principles of the invention and its practical applications, thereby enabling others skilled in the art to understand, implement, and utilize the various exemplary embodiments of the invention and their various alternatives and modifications. The scope of protection of the present invention is intended to be defined by the appended claims and their equivalents.

Claims

1. A system for adjusting steering damping based on a sound frequency analysis device, characterized in that, The system includes: The speaker unit is configured to play music and determine whether music is being played. A sound acquisition device configured to acquire the sound signal of music being played. An audio analysis device is configured to receive the sound signal of music collected by a sound acquisition device and determine whether the collected music is rhythmic. The power steering electronic control unit is configured to be electrically connected to an audio frequency analysis device to receive the determination results from the audio frequency analysis device, and to adjust the steering damping based on the received determination results from the audio frequency analysis device. The audio frequency analysis device is further configured as follows: Perform Fourier transform on the collected music audio signals; The frequency of the sound signal after Fourier transform is used to determine whether the collected music is rhythmic. If the sound frequency of the Fourier transform sound signal is a continuous signal within a time period and a frequency range, then the acquired music is determined to be rhythmic.

2. The system for adjusting steering damping based on an audio frequency analysis device according to claim 1, characterized in that, The power steering electronic control unit is configured as follows: When the received signal from the audio analysis device indicates that the collected music is rhythmic, increase the steering damping. When the received result signal from the audio analysis device indicates that the acquired music is not rhythmic, maintain the steering damping.

3. The system for adjusting steering damping based on an audio frequency analysis device according to claim 2, characterized in that, The power steering electronic control unit is configured as follows: If the received audio analysis device determines that the collected music is rhythmic, then determine whether the vehicle has a power steering system driving mode switching function. If it is determined that the vehicle has a power steering system with a driving mode switching function, then change the power steering system's driving mode to Sport mode.

4. The system for adjusting steering damping based on an audio frequency analysis device according to claim 3, characterized in that, The power steering electronic control unit is configured as follows: If it is determined that the vehicle is not using the power steering driving mode switching function. If the power steering system is an electric power steering system, reduce the input current of the steering motor to increase steering damping; If the power steering system is an electro-hydraulic power steering system, the control solenoid valve opens to increase steering damping.

5. The system for adjusting steering damping based on an audio frequency analysis device according to claim 1, characterized in that, The time period is set to a fixed duration, and the fixed duration is in the range of 5 seconds to 10 seconds. The frequency range includes 20Hz to 300Hz.

6. The system for adjusting steering damping based on an audio frequency analysis device according to claim 1, characterized in that, Communication between the audio host, sound acquisition device, audio analysis device, and power steering electronic control unit is performed through the controller local area network.

7. A method for adjusting steering damping based on an audio frequency analysis device, characterized in that, The method includes: The speaker unit plays music and determines whether music is being played. The sound signal of the music being played is collected by a sound acquisition device; The audio frequency analysis device receives the audio signal of the music collected by the sound acquisition device and determines whether the collected music is rhythmic. The power steering control unit receives the determination results from the audio frequency analysis device and adjusts the steering damping based on the received determination results. The audio signal of the collected music is subjected to Fourier transform by the audio analysis device; Based on the sound frequency of the sound signal after Fourier transform, the sound frequency analysis device determines whether the collected music is rhythmic. If the sound frequency of the sound signal after Fourier transform is a continuous signal within a time period and a frequency range, then the audio frequency analysis device determines that the acquired music is music with a strong sense of rhythm.

8. The method for adjusting steering damping based on an audio frequency analysis device according to claim 7, characterized in that, When the received audio analysis device determines that the collected music is rhythmic, the power steering control unit increases the steering damping. When the received audio analysis device determines that the collected music is not rhythmic, the power steering control unit maintains steering damping.

9. The method for adjusting steering damping based on an audio frequency analysis device according to claim 8, characterized in that, If the received audio analysis device determines that the collected music is rhythmic, the power steering control unit determines whether the vehicle has a power steering driving mode switching function. If it is determined that the vehicle has a power steering system with a driving mode switching function, the power steering electronic control unit will change the power steering driving mode to sport mode.

10. The method for adjusting steering damping based on an audio frequency analysis device according to claim 9, characterized in that, If it is determined that the vehicle is not using the power steering driving mode switching function. If the power steering system is an electric power steering system, the power steering control unit reduces the input current of the steering motor to increase steering damping; If the power steering system is an electro-hydraulic power steering system, the power steering system control unit controls the solenoid valve to open to increase steering damping.

11. The method for adjusting steering damping based on an audio frequency analysis device according to claim 7, characterized in that, The time period is set to a fixed duration, and the fixed duration is in the range of 5 seconds to 10 seconds. The frequency range includes 20Hz to 300Hz.

12. The method for adjusting steering damping based on an audio frequency analysis device according to claim 7, characterized in that, Communication between the audio host, sound acquisition device, audio analysis device, and power steering electronic control unit is performed through the controller local area network.

Images