Device for simulating engine starting sound and new energy vehicle

Abstract

The utility model discloses a device for simulating engine starting sound and a new energy vehicle. The device comprises a memory which stores a preset audio file related to engine starting; the microprocessor is used for responding to a received vehicle starting signal and sending a notification; the first digital signal processor is in communication connection with the memory and the microprocessor, and the first digital signal processor responds to the received notification, generates multiple paths of independent audio data based on a preset audio file obtained from the memory and mixes the independent audio data with multiple paths of basic audio data from the vehicle-mounted multimedia host; and at least one power amplifier in communication with the first digital signal processor for receiving the mixed audio data from the first digital signal processor. The safety of the new energy vehicle can be improved.

Description

Technical Field

[0001] This application relates to the field of audio simulation technology, and particularly to a device for simulating engine start sound and a new energy vehicle. Background Art

[0002] New energy vehicles are relatively quiet during startup and driving. At present, the startup prompt sound of new energy vehicle models is mainly achieved by directly playing the prompt sound through the multimedia host. The listening experience is monotonous and lacks a sense of space, which cannot improve the driving experience of the driver for new energy vehicles and cannot effectively notify the driver that the vehicle has started, which may lead to misoperations by the driver and pose a potential safety hazard during driving. Summary of the Utility Model

[0003] The purpose of the embodiments of this application is to provide a device for simulating engine start sound and a new energy vehicle, so as to solve the problem in the prior art that the startup sound of new energy vehicles cannot effectively notify the driver of the startup state of the vehicle, thus potentially posing a safety hazard during driving.

[0004] To achieve the above purpose, the first aspect of this application provides a device for simulating engine start sound, which is applied to a new energy vehicle. The device is characterized in that it includes:

[0005] A memory storing preset audio files related to engine start;

[0006] A microprocessor that issues a notification in response to receiving a vehicle start signal;

[0007] A first digital signal processor communicatively connected to the memory and the microprocessor. The first digital signal processor, in response to receiving the notification, generates multiple channels of independent audio data based on the preset audio files obtained from the memory and mixes the independent audio data with multiple channels of basic audio data from the in-vehicle multimedia host; and

[0008] At least one power amplifier communicatively connected to the first digital signal processor for receiving the mixed audio data from the first digital signal processor.

[0009] In the embodiments of this application, the device further includes: a second digital signal processor communicatively connected to the first digital signal processor, for receiving the basic audio signal from the in-vehicle multimedia host, generating multiple channels of basic audio data based on the basic audio signal, and transmitting the basic audio data to the first digital signal processor.

[0010] In the embodiments of this application, the first end of the first digital signal processor is communicatively connected to the first end of the memory.

[0011] In the embodiments of this application, the second end of the first digital signal processor is communicatively connected to the first end of the microprocessor.

[0012] In an embodiment of the present application, a first end of the second digital signal processor is communicatively connected to a third end of the first digital signal processor, and a second end of the second digital signal processor is communicatively connected to at least one power amplifier.

[0013] In an embodiment of the present application, a third end of the second digital signal processor is communicatively connected to a first end of the microprocessor, and a fourth end of the second digital signal processor is communicatively connected to an in-vehicle multimedia host.

[0014] In an embodiment of the present application, the microprocessor further includes: controlling the first digital signal processor to adjust the mixed audio data.

[0015] In an embodiment of the present application, a second end of the microprocessor is communicatively connected to a second end of the memory.

[0016] In an embodiment of the present application, a third end of the microprocessor is communicatively connected to at least one power amplifier.

[0017] A second aspect of the present application provides a new energy vehicle, which includes:

[0018] A power battery; and

[0019] An in-vehicle multimedia console for sending a basic audio signal to the second digital processor;

[0020] The above-mentioned device for simulating the engine start sound.

[0021] Through the above technical solution, the microprocessor receives a vehicle start signal and sends a notification to the first digital signal processor. The first digital signal processor generates multiple channels of independent audio data based on a preset audio file obtained from the memory, mixes the multiple channels of independent audio data with multiple channels of basic audio data from the in-vehicle multimedia host, and transmits the mixed audio data to at least one power amplifier to complete the playback of the engine start sound. By introducing a digital signal processor in the present application, controlling the digital signal processor to fuse the basic audio and the preset audio, and transmitting the mixed audio data to the power amplifier to complete the playback of the mixed audio, the safety of the new energy vehicle during startup is improved.

[0022] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation section. Description of the Drawings

[0023] The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the embodiments of the present application, but do not constitute a limitation to the embodiments of the present application. In the drawings:

[0024] Figure 1 Schematically shows a structural diagram of a device for simulating engine startup sound according to an embodiment of the present application;

[0025] Figure 2 Schematically shows a flowchart of audio processing according to an embodiment of the present application;

[0026] Figure 3 Schematically shows a structural diagram of another device for simulating engine startup sound according to an embodiment of the present application. Detailed implementation manners

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It should be understood that the specific implementation manners described herein are only for explaining and illustrating the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.

[0028] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0030] Figure 1 Schematically shows a structural diagram of a device for simulating engine startup sound according to an embodiment of the present application. As Figure 1 shown, an embodiment of the present application provides a device for simulating engine startup sound, and the device may include:

[0031] A memory QFLASH, storing a preset audio file related to engine startup;

[0032] In the embodiment of the present application, the preset audio file can be a user-defined audio file, and the preset audio file is stored in the memory QFLASH.

[0033] The microprocessor issues a notification in response to receiving a vehicle start signal;

[0034] In the embodiment of the present application, the vehicle start signal can be a signal when the power battery of a new energy vehicle is connected, or a gear change signal of a new energy vehicle. For example, changing from the parking gear to the driving gear. When the microprocessor receives the vehicle start signal, the microprocessor issues a notification in response to the vehicle start signal. The microprocessor can be communicatively connected to the new energy vehicle via the CAN transceiver through port 144. The CAN transceiver (Controller Area Network Transceiver) is a hardware component for data transmission on the CAN (Controller Area Network) bus.

[0035] The first digital signal processor DSP1 is communicatively connected to the memory QFLASH and the microprocessor. The first digital signal processor DSP1, in response to receiving the notification, generates multiplexed independent audio data based on the preset audio file obtained from the memory QFLASH and mixes the independent audio data with the multiplexed basic audio data from the in-vehicle multimedia host.

[0036] In the embodiment of the present application, port 112 of the first digital signal processor DSP1 receives the notification sent from port 141 of the microprocessor, obtains the preset audio file preset in advance from port 131 of the memory QFLASH, generates multiplexed independent audio data, and mixes the independent audio data with the multiplexed basic audio data sent by the CAN transceiver of the in-vehicle multimedia host. The multiplexed basic audio data can be the necessary audio data when the vehicle starts, such as gear shifting prompt sounds, navigation audio, music audio, and so on.

[0037] At least one power amplifier is communicatively connected to the first digital signal processor DSP1 and is used to receive the mixed audio data from the first digital signal processor DSP1.

[0038] In an embodiment of the present application, the power amplifier communicates with the 113 port of the first digital signal processor DSP1 through the 122 port and the 121 port of the second digital signal processor DSP2 via the TDM protocol (Time Division Multiplexing) to receive the mixed audio data. In this way, the first digital signal processor DSP1 processes the basic audio data and the independent audio data, and transmits the mixed audio data from the 113 port of the first digital signal processor DSP1 to the 121 port and the 122 port of the second digital signal processor DSP2 and then to the power amplifier.

[0039] Through the above technical solution, by introducing a digital signal processor and controlling the digital signal processor to fuse the basic audio and the preset audio and transmit the mixed audio data to the power amplifier to complete the playback of the mixed audio, the safety of the new energy vehicle during startup is improved.

[0040] In an embodiment of the present application, the device may further include: a second digital signal processor DSP2, communicatively connected to the first digital signal processor DSP1, for receiving a basic audio signal from an in-vehicle multimedia host, generating multiplexed basic audio data according to the basic audio signal, and transmitting the basic audio data to the first digital signal processor DSP1.

[0041] In an embodiment of the present application, the 121 port of the second digital signal processor DSP2 is communicatively connected to the 113 port of the first digital signal processor DSP1 via the TDM protocol. The second digital signal processor DSP2 is used to receive the basic audio signal of the in-vehicle multimedia host from the A2B IC via the TDM protocol. A2B (Automotive Audio Bus) IC is an integrated circuit used for automotive audio and control systems.

[0042] In an embodiment of the present application, the first end of the first digital signal processor DSP1 is communicatively connected to the first end of the memory.

[0043] In an embodiment of the present application, the second end of the first digital signal processor is communicatively connected to the first end of the microprocessor.

[0044] In an embodiment of the present application, the first end (111) of the first digital signal processor DSP1 is communicatively connected to the first end (131) of the memory via the SPI protocol. SPI (Serial Peripheral Interface) is a serial communication protocol for high-speed data transmission between a microcontroller and peripheral devices. The second end (112) of the first digital signal processor DSP1 is communicatively connected to the first end (141) of the microprocessor via the SPI protocol.

[0045] In an embodiment of the present application, the first end of the second digital signal processor is communicatively connected to the third end of the first digital signal processor, and the second end of the second digital signal processor is communicatively connected to at least one power amplifier.

[0046] In an embodiment of the present application, the first end (121) of the second digital signal processor DSP2 is communicatively connected to the third end (113) of the first digital signal processor DSP1 through the TDM protocol, and the second end (122) of the second digital signal processor DSP2 is communicatively connected to at least one power amplifier through the TDM protocol.

[0047] In an embodiment of the present application, at least one power amplifier may be Power Amplifier 1 and Power Amplifier 2. The second end (122) of the second digital signal processor DSP2 is communicatively connected to the first end (151) of Power Amplifier 1 through the TDM protocol and is simultaneously communicatively connected to the first end (161) of the power amplifier.

[0048] In an embodiment of the present application, the third end of the second digital signal processor is communicatively connected to the first end of the microprocessor, and the fourth end of the second digital signal processor is communicatively connected to the in-vehicle multimedia host.

[0049] In an embodiment of the present application, the third end (123) of the second digital signal processor DSP2 is communicatively connected to the first end (141) of the microprocessor through the SPI protocol, and the fourth end (124) of the second digital signal processor DSP2 is connected to the A2B circuit through the TDM protocol and finally communicatively connected to the in-vehicle multimedia host.

[0050] In an embodiment of the present application, the microprocessor may further include: controlling the first digital signal processor to adjust the mixed audio data.

[0051] In an embodiment of the present application, after receiving the vehicle start signal, the microprocessor may control the first digital signal processor DSP1 to adjust the mixed audio data through the 141 port. Figure 2 Schematically shows an audio processing flow chart according to an embodiment of the present application, as Figure 2 shown. First, a preset audio file is converted into independent multi-channel audio data, that is, MatricMixer; then, the frequency response of each channel of audio data can be adjusted, that is, EQ; furthermore, the delay of each channel of audio data can be adjusted, that is, Delay; finally, the gain, sound volume, and sound field position of each channel of signal can be adjusted, that is, Gain. In this way, the user can adjust the sound field position (the position where the engine sounds in the vehicle), the sound effect, and the sound volume at various places in the vehicle of the simulated engine start sound on the in-vehicle multimedia device. The user can debug a suitable simulated engine start sound according to the power and style of different vehicle models, thereby enhancing the driving safety of new energy vehicles and also improving the driving pleasure.

[0052] In an embodiment of the present application, the second end of the microprocessor is communicatively connected to the second end of the memory.

[0053] In an embodiment of the present application, the second end (142) of the microprocessor is communicatively connected to the second end (132) of the memory QFLASH through the SPI protocol.

[0054] In an embodiment of the present application, the third end of the microprocessor is communicatively connected to at least one power amplifier.

[0055] In an embodiment of the present application, the third end (143) of the microprocessor is communicatively connected to at least one power amplifier through the TDM protocol.

[0056] Figure 3 Schematically shows a structural diagram of another device for simulating the engine startup sound according to an embodiment of the present application. As Figure 3 shown, in another embodiment, the microprocessor receives the startup signal of the new energy vehicle through the 334 port, the CAN transceiver, and the CAN protocol. The 313 port of the first digital signal processor DSP1 is communicatively connected to the A2B circuit, the 341 port of the power amplifier 1, and the 351 port of the power amplifier 2 through the TDM protocol to receive the basic audio signal of the in-vehicle multimedia host. The 311 port of the first digital signal processor DSP1 receives the preset audio file stored on the memory QFLASH through the SPI protocol. The 312 port of the first digital signal processor DSP1 is communicatively connected to the 331 port of the microprocessor through the SPI protocol. The 332 port of the microprocessor is communicatively connected to the 322 port of the QFLASH through the SPI protocol. The 333 port of the microprocessor is communicatively connected to the 342 port of the power amplifier 1 and the 352 port of the power amplifier 2 through the TDM protocol.

[0057] In an embodiment of the present application, by storing the pre-recorded engine startup sound effect in the memory QFlash, and the microprocessor receives the startup signal of the vehicle through the CAN transceiver. When the new energy vehicle starts, the microprocessor instructs the first digital signal processor DSP1 to load the preset audio file and generate multiplex independent audio data. These data are mixed with the basic audio (such as music, alarm sound) processed by DSP2 and then transmitted to the power amplifier through the TDM protocol, and finally drive the power amplifier to play the simulated engine startup sound effect.

[0058] An embodiment of the present application further provides a new energy vehicle, which may include:

[0059] A power battery; and

[0060] An in-vehicle multimedia car machine for sending a basic audio signal to the second digital processor;

[0061] The above device for simulating engine startup sound.

[0062] Through the above technical solution, compared with directly playing the startup prompt sound in the in-vehicle multimedia host in the prior art, the present application can process the pre-prepared audio file through the first digital signal processor DSP1 to form multiple channels of digitally independent controllable audio, thereby improving the safety of a new energy vehicle during driving.

[0063] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "including one..." does not exclude the presence of another identical element in the process, method, commodity or device including the element.

[0064] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A device for simulating the engine starting sound, which is applied to new energy vehicles, characterized in that, The device includes: a memory that stores a preset audio file related to engine startup; a microprocessor that issues a notification in response to receiving a vehicle startup signal; a first digital signal processor communicatively connected to the memory and the microprocessor, the first digital signal processor generating multiplexed independent audio data based on the preset audio file obtained from the memory in response to receiving the notification and mixing the independent audio data with multiplexed basic audio data from an in-vehicle multimedia host; and at least one power amplifier communicatively connected to the first digital signal processor for receiving the mixed audio data from the first digital signal processor.

2. The device according to claim 1, characterized in that It further includes: a second digital signal processor communicatively connected to the first digital signal processor for receiving a basic audio signal from the in-vehicle multimedia host, generating the multiplexed basic audio data according to the basic audio signal, and transmitting the basic audio data to the first digital signal processor.

3. The device according to claim 1, characterized in that, A first end of the first digital signal processor is communicatively connected to a first end of the memory.

4. The device according to claim 1, wherein A second end of the first digital signal processor is communicatively connected to a first end of the microprocessor.

5. The device according to claim 2, characterized in that, A first end of the second digital signal processor is communicatively connected to a third end of the first digital signal processor, and a second end of the second digital signal processor is communicatively connected to the at least one power amplifier.

6. The device according to claim 2, characterized in that, A third end of the second digital signal processor is communicatively connected to a first end of the microprocessor, and a fourth end of the second digital signal processor is communicatively connected to the in-vehicle multimedia host.

7. The device according to claim 1, characterized in that, The microprocessor further includes: controlling the first digital signal processor to adjust the mixed audio data.

8. The device according to claim 1, characterized in that, A second end of the microprocessor is communicatively connected to a second end of the memory.

9. The device according to claim 1, characterized in that A third end of the microprocessor is communicatively connected to the at least one power amplifier.

10. A new energy vehicle, characterized in that, It includes: a power battery; and an in-vehicle multimedia head unit for sending a basic audio signal to the second digital processor; The device for simulating engine startup sound according to any one of claims 1 to 9.

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