Method and device for simulating sports car sound

Abstract

The present application relates to a method and device for simulating the sound of a sports car, and relates to the field of vehicle control technology. The method comprises the following steps: generating a corresponding sound simulation signal based on the operating mode of the vehicle's hybrid system; generating a corresponding sound simulation signal based on the drive motor speed and accelerator pedal opening; generating a corresponding sound simulation signal in response to the drive motor's shifting operation based on the gear shift map of the transmission; generating a corresponding sound simulation signal based on the vehicle speed signal when the vehicle speed increases; and performing sound simulation based on the sound simulation signal. The present application performs sound simulation based on the operating conditions of the vehicle's hybrid system, comprehensively considering the drive motor speed, accelerator pedal opening, vehicle shifting conditions, and vehicle speed changes, to enhance the driving experience.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a method and device for simulating the sound of a sports car. Background Art

[0002] In today's automotive industry, active sound wave devices have been widely used in the automotive industry. By reading information such as the accelerator pedal opening, engine speed, gearbox gear, vehicle speed, and performing order harmonic algorithms or particle fitting algorithms, the speakers in the car are controlled to simulate sports car, science fiction and other sounds, allowing ordinary cars to greatly increase the user's driving pleasure. When the driver needs greater vehicle acceleration, he steps on the accelerator deeply, the engine speed increases, and the speakers in the car emit more powerful and surging sounds, giving the driver auditory enjoyment.

[0003] Active acoustic systems are currently commonly used in compact four-cylinder sedans and pure electric vehicles. However, compact sedans equipped with hybrid systems incorporate a combination of electric motors and engines, generating noise from both traditional gasoline engines and new energy motors. Current acoustic simulation technology cannot meet the requirements for such vehicles.

[0004] Therefore, a sports car sound wave simulation technology is now provided to meet the current sound wave simulation needs. Summary of the Invention

[0005] The present application provides a method and device for simulating the sound of a sports car. Based on the working conditions of the vehicle's hybrid system, the method simulates the sound of the driving motor, the accelerator pedal opening, the vehicle's gear shifting conditions, and the vehicle speed changes, so as to enhance the driving experience.

[0006] In a first aspect, the present application provides a method for simulating the sound of a sports car, the method comprising the following steps:

[0007] Generates corresponding sound wave simulation signals based on the working mode of the vehicle's hybrid system;

[0008] Generates a corresponding sound wave simulation signal based on the drive motor speed and accelerator pedal opening;

[0009] Based on the gear shift map of the transmission, in response to the gear shift operation of the drive motor, a corresponding sound wave simulation signal is generated;

[0010] Based on the vehicle speed signal, when the vehicle speed increases, a corresponding sound wave simulation signal is generated;

[0011] Performing a sound wave simulation based on the sound wave simulation signal.

[0012] Specifically, generating a corresponding sound wave simulation signal based on the drive motor speed and the accelerator pedal opening includes the following steps:

[0013] generating a sound frequency signal based on the rotational speed of the driving motor;

[0014] generating a sound wave amplitude signal based on the accelerator pedal opening;

[0015] Based on the sound wave frequency signal and the sound wave amplitude signal, a corresponding sound wave simulation signal is generated.

[0016] Specifically, performing sound wave simulation based on the sound wave simulation signal includes the following steps:

[0017] Using a power amplifier to receive the sound wave simulation signal and transmit it to the multimedia device in the vehicle;

[0018] The in-vehicle multimedia device performs sound simulation in response to the sound simulation signal.

[0019] Specifically, the operating modes of the vehicle hybrid system include a first operating mode, a second operating mode, and a third operating mode;

[0020] In the first working mode, the gasoline engine drives the generator to generate electricity at idle speed;

[0021] In the second working mode, the drive motor drives the rotating shaft to adopt pure electric drive when the vehicle speed is below the preset speed, and adopts power-assisted drive when the vehicle speed is above the preset speed;

[0022] In the third working mode, the gasoline engine drives the transmission shaft to adopt direct drive when the vehicle speed is above the preset speed.

[0023] Specifically, the operating modes of the vehicle hybrid system include EV operating mode, series operating mode and parallel operating mode;

[0024] EV working mode is the second working mode;

[0025] The series working mode is a combination of the first working mode and the second working mode;

[0026] The parallel working mode is a combination of the first working mode, the second working mode and the third working mode.

[0027] In a second aspect, the present application provides a sports car sound simulation device, the device comprising:

[0028] A first analog signal generating module, which is used to generate a corresponding sound wave simulation signal based on the operating mode of the vehicle hybrid system;

[0029] A second analog signal generating module, which is used to generate a corresponding sound wave simulation signal based on the driving motor speed and the accelerator pedal opening;

[0030] a third simulation signal generating module, configured to generate a corresponding sound wave simulation signal in response to a shift operation of the drive motor based on a shift map of the transmission;

[0031] a fourth simulation signal generating module, configured to generate a corresponding sound wave simulation signal based on the vehicle speed signal when the vehicle speed increases;

[0032] The sound wave simulation module is used to perform sound wave simulation based on the sound wave simulation signal.

[0033] Furthermore, the second analog signal generating module is further configured to generate a sound frequency signal based on the rotational speed of the driving motor;

[0034] The second analog signal generating module is further configured to generate a sound wave amplitude signal based on the accelerator pedal opening;

[0035] The second analog signal generating module is further configured to generate a corresponding sound wave analog signal based on the sound wave frequency signal and the sound wave amplitude signal.

[0036] Furthermore, the sound wave simulation module is further configured to receive the sound wave simulation signal using a power amplifier and transmit the signal to the multimedia device in the vehicle;

[0037] The sound wave simulation module is also used for the in-vehicle multimedia device to respond to the sound wave simulation signal and perform sound wave simulation.

[0038] Furthermore, the operating modes of the vehicle hybrid system include a first operating mode, a second operating mode, and a third operating mode;

[0039] In the first working mode, the gasoline engine drives the generator to generate electricity at idle speed;

[0040] In the second working mode, the drive motor drives the rotating shaft to adopt pure electric drive when the vehicle speed is below the preset speed, and adopts power-assisted drive when the vehicle speed is above the preset speed;

[0041] In the third working mode, the gasoline engine drives the transmission shaft to adopt direct drive when the vehicle speed is above the preset speed.

[0042] Furthermore, the device further comprises:

[0043] The operating modes of the vehicle hybrid system include EV operating mode, series operating mode and parallel operating mode;

[0044] EV working mode is the second working mode;

[0045] The series working mode is a combination of the first working mode and the second working mode;

[0046] The parallel working mode is a combination of the first working mode, the second working mode and the third working mode.

[0047] The beneficial effects of the technical solution provided by this application include:

[0048] This application is based on the working conditions of the vehicle's hybrid system, taking into account the drive motor speed, accelerator pedal opening, vehicle gear shifting and vehicle speed changes, to simulate sound waves to enhance the driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. 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 any creative work.

[0050] Figure 1 This is an operational flow chart of the sports car sound simulation technology provided in an embodiment of the present application;

[0051] Figure 2 This is a logic principle diagram of the vehicle acceleration sound effect of the sports car sound simulation technology provided in the embodiments of this application;

[0052] Figure 3 This is a logic principle diagram of the vehicle acceleration sound effect of the sports car sound simulation technology provided in the embodiments of this application;

[0053] Figure 4 This is a logic schematic diagram of a power amplifier for the sports car sound simulation technology provided in an embodiment of the present application;

[0054] Figure 5 A diagram showing the working principle of a hybrid system for the sports car sound simulation technology provided in an embodiment of the present application;

[0055] Figure 6 A diagram showing the relationship between vehicle speed and accelerator pedal opening fitting gear information for the sports car sound simulation technology provided in an embodiment of the present application;

[0056] Figure 7 A schematic diagram of the curves of the original car noise and the added noise of the sports car sound simulation technology provided in the embodiment of the present application;

[0057] Figure 8 A schematic diagram of the change in acceleration sound gain of the sports car sound simulation technology provided in an embodiment of the present application;

[0058] Figure 9 Schematic diagram of the noise configuration of the sports car sound simulation technology provided in an embodiment of the present application. DETAILED DESCRIPTION

[0059] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0060] The embodiments of the present application are further described in detail below with reference to the accompanying drawings.

[0061] The embodiments of the present application provide a method and device for simulating sports car sound waves. Based on the operating conditions of the vehicle's hybrid system, the method simulates the sound waves by comprehensively considering the drive motor speed, accelerator pedal opening, vehicle gear shifting conditions, and vehicle speed changes to enhance the driving experience.

[0062] To achieve the above technical effects, the overall idea of ​​this application is as follows:

[0063] A method for simulating the sound of a sports car, the method comprising the following steps:

[0064] S1. Generate a corresponding sound wave simulation signal based on the operating mode of the vehicle hybrid system;

[0065] S2. Generate a corresponding sound wave simulation signal based on the drive motor speed and accelerator pedal opening;

[0066] S3, based on the gear shift map of the transmission, responds to the gear shift operation of the drive motor and generates a corresponding sound wave simulation signal;

[0067] S4. Based on the vehicle speed signal, when the vehicle speed increases, a corresponding sound wave simulation signal is generated;

[0068] S5. Performing sound wave simulation based on the sound wave simulation signal.

[0069] The embodiments of the present application are further described in detail below with reference to the accompanying drawings.

[0070] First, see Figures 1 to 9 As shown, an embodiment of the present application provides a method for simulating sports car sound, the method comprising the following steps:

[0071] S1. Generate a corresponding sound wave simulation signal based on the operating mode of the vehicle hybrid system;

[0072] S2. Generate a corresponding sound wave simulation signal based on the drive motor speed and accelerator pedal opening;

[0073] S3, based on the gear shift map of the transmission, responds to the gear shift operation of the drive motor and generates a corresponding sound wave simulation signal;

[0074] S4. Based on the vehicle speed signal, when the vehicle speed increases, a corresponding sound wave simulation signal is generated;

[0075] S5. Performing sound wave simulation based on the sound wave simulation signal.

[0076] In the embodiment of the present application, based on the working conditions of the vehicle's hybrid system, the drive motor speed, the accelerator pedal opening, the vehicle's gear shifting conditions, and the vehicle speed changes are comprehensively considered to perform sound simulation to enhance the driving experience.

[0077] It should be noted that the technical solution of the embodiment of the present application is installed in a hybrid system vehicle model, and combines the working configuration of the hybrid system to perform acceleration sound logic judgment, and specifically performs in-vehicle sound algorithm fitting based on the different engine and motor in-vehicle background noise in EV mode, series mode, and parallel mode;

[0078] The acceleration sound effect of the embodiment of the present application is adjusted by combining the drive motor speed and the accelerator pedal opening;

[0079] Utilizing the shift map of a traditional transmission, the drive motor simulates the shift sound effect, achieving a more enjoyable acceleration sound effect;

[0080] Utilize the vehicle speed signal in the CAN signal to compensate for the noise inside the vehicle as the vehicle speed increases;

[0081] Control the power amplifier to simulate sound waves, and when playing music and other multimedia at the same time, you can clearly distinguish the sound wave sound effects and multimedia sound effects.

[0082] In the embodiment of the present application, during the acceleration process of a vehicle equipped with a hybrid system, the combination of the motor and the engine provides very strong wheel-side torque power. Furthermore, with the background noise of the traditional fuel engine and the new energy motor, combined with the operating logic of the hybrid system, the on-board power amplifier controller controls the in-car speakers to simulate the sound of a sports car. The shifting sound is simulated according to the shift map of the traditional transmission, and the sound is compensated in combination with the vehicle speed, making the hybrid vehicle's acceleration sound more powerful, allowing the driver to enjoy the acceleration and in-car sound of the hybrid vehicle more.

[0083] After implementation, the hybrid vehicle system simulating sports car sound can well match the accelerator pedal opening, simulate the gear shifting action of the traditional vehicle transmission according to the different engine and motor background noise in the hybrid system's EV mode, series mode, and parallel mode, compensate for the sound as the vehicle speed increases, and control the power amplifier to drive the speakers to produce the passionate accelerating sports car sound effect.

[0084] Specifically, generating a corresponding sound wave simulation signal based on the drive motor speed and the accelerator pedal opening includes the following steps:

[0085] generating a sound frequency signal based on the rotational speed of the driving motor;

[0086] generating a sound wave amplitude signal based on the accelerator pedal opening;

[0087] Based on the sound wave frequency signal and the sound wave amplitude signal, a corresponding sound wave simulation signal is generated.

[0088] Specifically, performing sound wave simulation based on the sound wave simulation signal includes the following steps:

[0089] Using a power amplifier to receive the sound wave simulation signal and transmit it to the multimedia device in the vehicle;

[0090] The in-vehicle multimedia device performs sound simulation in response to the sound simulation signal.

[0091] Specifically, the operating modes of the vehicle hybrid system include a first operating mode, a second operating mode, and a third operating mode;

[0092] In the first working mode, the gasoline engine drives the generator to generate electricity at idle speed;

[0093] In the second working mode, the drive motor drives the rotating shaft to adopt pure electric drive when the vehicle speed is below the preset speed, and adopts power-assisted drive when the vehicle speed is above the preset speed;

[0094] In the third working mode, the gasoline engine drives the transmission shaft to adopt direct drive when the vehicle speed is above the preset speed.

[0095] Specifically, the operating modes of the vehicle hybrid system include EV operating mode, series operating mode and parallel operating mode;

[0096] EV working mode is the second working mode;

[0097] The series working mode is a combination of the first working mode and the second working mode;

[0098] The parallel working mode is a combination of the first working mode, the second working mode and the third working mode.

[0099] Combined with the drawings in the specification Figures 2 to 8 , the technical solutions of the embodiments of the present application are described in detail, the specific details are as follows:

[0100] The logic principle diagram of the vehicle acceleration sound effect in the embodiment of this application is as follows Figure 2 As shown;

[0101] By communicating with the multimedia host, the system controls the sound wave on and off, combines the working status of the gasoline engine and drive motor, confirms the noise level inside the car, matches the throttle signal and vehicle speed signal, performs algorithm fitting in the power amplifier, and drives the car speakers to simulate the sound effect of a sports car.

[0102] The data is processed in the power amplifier, which makes a comprehensive judgment based on the gasoline engine, drive motor, accelerator pedal signal, and vehicle speed signal. It determines the sound waves of different frequencies by the vehicle speed and the different amplitudes by the accelerator pedal. It also combines vehicle speed compensation and engine background noise compensation.

[0103] As shown in the accompanying drawings Figure 3 As shown, the sound wave algorithm in the power amplifier logic principle is programmed in the main control chip, and the sound wave effect is simulated by adding harmonic order components and particle components;

[0104] Among them, OUT1-4 of PA and OUT5-7 of PA correspond to speaker channels respectively, where 1-5 are the left front, right front, center, left rear and right rear speakers in the passenger compartment respectively, and 6-7 are the two subwoofers in the luggage compartment respectively.

[0105] In addition, the drawings of the specification Figure 4 As shown, a schematic diagram of the setting of the power module corresponding to the power amplifier and the associated loudspeaker.

[0106] As shown in the accompanying drawings Figure 5 As shown in the diagram, the hybrid system works in mode 1 and mode 2 from 0 to 45 km / h. When the vehicle speed is higher than 45 km / h, the hybrid system works in mode 2 and mode 3.

[0107] EV mode is Mode 2 operation, where the motor directly drives the drive shaft;

[0108] Series mode is when Mode 1 and Mode 2 work together, the engine drives the generator to charge the battery, and the motor directly drives the drive shaft;

[0109] Parallel mode is when Mode 1, Mode 2, and Mode 3 work together, the engine drives the generator to charge the battery, the motor drives the drive shaft directly, and the engine drives the drive shaft directly.

[0110] As shown in the accompanying drawings Figure 6 As shown, the gear information is fitted by vehicle speed and accelerator pedal opening, and the gear shift sound effect is simulated through a power amplifier between different gears;

[0111] It should be noted that Figure 6 In the figure, the horizontal axis represents the vehicle speed and the vertical axis represents the throttle opening;

[0112] 1-5 in the figure represent the vehicle gear information.

[0113] In addition, the drawings of the specification Figure 7 As Figure 6 Supplementary explanation: The vehicle has a 25% throttle opening and the speed ranges from 0 to 130kmh. The smooth curve is the original vehicle noise, and the curve with larger fluctuations represents the noise value of the increased gear shift sound, which adds a lot of noise changes and increases the fun of the sound in the car.

[0114] Specifically, similar to the original car driving in a straight line, the gear shifting action is added to drive around the curve, which increases the driving pleasure.

[0115] As shown in the accompanying drawings Figure 8 As shown, it is a schematic diagram of the change of acceleration sound wave gain.

[0116] It should be noted that after implementation, the embodiments of the present application:

[0117] First, it can adapt to the different background noises of the hybrid system's EV mode, series mode, and parallel mode engine and generator, making the simulated sound less abrupt;

[0118] Different sound modes can be configured to correspond to different sound effects in the car.

[0119] Second, it simulates the shifting action of a traditional gearbox to enrich the sound effect inside the car when accelerating;

[0120] Third, as shown in the accompanying drawings Figure 8 As shown, the sound wave compensation is carried out in combination with the vehicle speed. The faster the vehicle speed is when the throttle opening is medium or large, the louder the sound wave is, so as to offset the background noise such as chassis noise, wind noise, engine noise, etc. at medium and high speeds.

[0121] Fourth, the power amplifier has different output channels, and the sound waves and multimedia sounds can be clearly distinguished, while the sound waves and multimedia sounds are both sounded at the same time based on the speaker.

[0122] It should be noted that the acceleration sound logic judgment is carried out in combination with the working configuration of the hybrid system. The in-vehicle sound algorithm is specially fitted based on the different engine and motor in-vehicle background noises in EV mode / 0-60kmh, series mode / 0-60kmh, parallel mode / 60-130kmh and above, making the in-vehicle sound less abrupt and more realistic.

[0123] As shown in the accompanying drawings Figure 9 As shown, according to the different vehicle interior background noises of EV mode / 0-60kmh, series mode / 0-60kmh, parallel mode / 60-130kmh and above, the engine 1-60 order noise is added for matching.

[0124] In addition, the acceleration sound effect is adjusted by combining the drive motor speed and the accelerator pedal opening. The frequency component of the sound changes with the motor speed, and the amplitude of the sound changes with the accelerator pedal opening.

[0125] Likewise, as shown in the accompanying drawings Figure 9 As shown, for different interior background noises in EV mode / 0-60kmh, series mode / 0-60kmh, parallel mode / 60-130kmh and above, the engine 1-60 order noise is added for matching, and then combined with the drawings in the specification Figure 8 , you can know how loud the throttle opening controls the noise level.

[0126] Second, see Figures 2 to 9 As shown, the embodiment of the present application provides a sports car sound simulation device based on the technology of the sports car sound simulation method mentioned in the first aspect, and the device includes:

[0127] A first analog signal generating module, which is used to generate a corresponding sound wave simulation signal based on the operating mode of the vehicle hybrid system;

[0128] A second analog signal generating module, which is used to generate a corresponding sound wave simulation signal based on the driving motor speed and the accelerator pedal opening;

[0129] a third simulation signal generating module, configured to generate a corresponding sound wave simulation signal in response to a shift operation of the drive motor based on a shift map of the transmission;

[0130] a fourth simulation signal generating module, configured to generate a corresponding sound wave simulation signal based on the vehicle speed signal when the vehicle speed increases;

[0131] The sound wave simulation module is used to perform sound wave simulation based on the sound wave simulation signal.

[0132] In the embodiment of the present application, based on the working conditions of the vehicle's hybrid system, the drive motor speed, the accelerator pedal opening, the vehicle's gear shifting conditions, and the vehicle speed changes are comprehensively considered to perform sound simulation to enhance the driving experience.

[0133] It should be noted that the technical solution of the embodiment of the present application is installed in a hybrid system vehicle model, and combines the working configuration of the hybrid system to perform acceleration sound logic judgment, and specifically performs in-vehicle sound algorithm fitting based on the different engine and motor in-vehicle background noise in EV mode, series mode, and parallel mode;

[0134] The acceleration sound effect of the embodiment of the present application is adjusted by combining the drive motor speed and the accelerator pedal opening;

[0135] Utilizing the shift map of a traditional transmission, the drive motor simulates the shift sound effect, achieving a more enjoyable acceleration sound effect;

[0136] Utilize the vehicle speed signal in the CAN signal to compensate for the noise inside the vehicle as the vehicle speed increases;

[0137] Control the power amplifier to simulate sound waves, and when playing music and other multimedia at the same time, you can clearly distinguish the sound wave sound effects and multimedia sound effects.

[0138] In the embodiment of the present application, during the acceleration process of a vehicle equipped with a hybrid system, the combination of the motor and the engine provides very strong wheel-side torque power. Furthermore, with the background noise of the traditional fuel engine and the new energy motor, combined with the operating logic of the hybrid system, the on-board power amplifier controller controls the in-car speakers to simulate the sound of a sports car. The shifting sound is simulated according to the shift map of the traditional transmission, and the sound is compensated in combination with the vehicle speed, making the hybrid vehicle's acceleration sound more powerful, allowing the driver to enjoy the acceleration and in-car sound of the hybrid vehicle more.

[0139] After implementation, the hybrid vehicle system simulating sports car sound can well match the accelerator pedal opening, simulate the gear shifting action of the traditional vehicle transmission according to the different engine and motor background noise in the hybrid system's EV mode, series mode, and parallel mode, compensate for the sound as the vehicle speed increases, and control the power amplifier to drive the speakers to produce the passionate accelerating sports car sound effect.

[0140] Furthermore, the second analog signal generating module is further configured to generate a sound frequency signal based on the rotational speed of the driving motor;

[0141] The second analog signal generating module is further configured to generate a sound wave amplitude signal based on the accelerator pedal opening;

[0142] The second analog signal generating module is further configured to generate a corresponding sound wave analog signal based on the sound wave frequency signal and the sound wave amplitude signal.

[0143] Furthermore, the sound wave simulation module is further configured to receive the sound wave simulation signal using a power amplifier and transmit the signal to the multimedia device in the vehicle;

[0144] The sound wave simulation module is also used for the in-vehicle multimedia device to respond to the sound wave simulation signal and perform sound wave simulation.

[0145] Furthermore, the operating modes of the vehicle hybrid system include a first operating mode, a second operating mode, and a third operating mode;

[0146] In the first working mode, the gasoline engine drives the generator to generate electricity at idle speed;

[0147] In the second working mode, the drive motor drives the rotating shaft to adopt pure electric drive when the vehicle speed is below the preset speed, and adopts power-assisted drive when the vehicle speed is above the preset speed;

[0148] In the third working mode, the gasoline engine drives the transmission shaft to adopt direct drive when the vehicle speed is above the preset speed.

[0149] Furthermore, the device further comprises:

[0150] The operating modes of the vehicle hybrid system include EV operating mode, series operating mode and parallel operating mode;

[0151] EV working mode is the second working mode;

[0152] The series working mode is a combination of the first working mode and the second working mode;

[0153] The parallel working mode is a combination of the first working mode, the second working mode and the third working mode.

[0154] Combined with the drawings in the specification Figures 2 to 8 , the technical solutions of the embodiments of the present application are described in detail, the specific details are as follows:

[0155] The logic principle diagram of the vehicle acceleration sound effect in the embodiment of this application is as follows Figure 2 As shown;

[0156] By communicating with the multimedia host, the system controls the sound wave on and off, combines the working status of the gasoline engine and drive motor, confirms the noise level inside the car, matches the throttle signal and vehicle speed signal, performs algorithm fitting in the power amplifier, and drives the car speakers to simulate the sound effect of a sports car.

[0157] The data is processed in the power amplifier, which makes a comprehensive judgment based on the gasoline engine, drive motor, accelerator pedal signal, and vehicle speed signal. It determines the sound waves of different frequencies by the vehicle speed and the different amplitudes by the accelerator pedal. It also combines vehicle speed compensation and engine background noise compensation.

[0158] As shown in the accompanying drawings Figure 3 As shown, the sound wave algorithm in the power amplifier logic principle is programmed in the main control chip, and the sound wave effect is simulated by adding harmonic order components and particle components;

[0159] Among them, OUT1-4 of PA and OUT5-7 of PA correspond to speaker channels respectively, where 1-5 are the left front, right front, center, left rear and right rear speakers in the passenger compartment respectively, and 6-7 are the two subwoofers in the luggage compartment respectively.

[0160] In addition, the drawings of the specification Figure 4 As shown, a schematic diagram of the setting of the power module corresponding to the power amplifier and the associated loudspeaker.

[0161] As shown in the accompanying drawings Figure 5 As shown in the diagram, the hybrid system works in mode 1 and mode 2 from 0 to 45 km / h. When the vehicle speed is higher than 45 km / h, the hybrid system works in mode 2 and mode 3.

[0162] EV mode is Mode 2 operation, where the motor directly drives the drive shaft;

[0163] Series mode is when Mode 1 and Mode 2 work together, the engine drives the generator to charge the battery, and the motor directly drives the drive shaft;

[0164] Parallel mode is when Mode 1, Mode 2, and Mode 3 work together, the engine drives the generator to charge the battery, the motor drives the drive shaft directly, and the engine drives the drive shaft directly.

[0165] As shown in the accompanying drawings Figure 6 As shown, the gear information is fitted by vehicle speed and accelerator pedal opening, and the gear shift sound effect is simulated through a power amplifier between different gears;

[0166] It should be noted that Figure 6 In the figure, the horizontal axis represents the vehicle speed and the vertical axis represents the throttle opening;

[0167] 1-5 in the figure represent the vehicle gear information.

[0168] In addition, the drawings of the specification Figure 7 As Figure 6 Supplementary explanation: The vehicle has a 25% throttle opening and the speed ranges from 0 to 130kmh. The smooth curve is the original vehicle noise, and the curve with larger fluctuations represents the noise value of the increased gear shift sound, which adds a lot of noise changes and increases the fun of the sound in the car.

[0169] Specifically, similar to the original car driving in a straight line, the gear shifting action is added to drive around the curve, which increases the driving pleasure.

[0170] As shown in the accompanying drawings Figure 8 As shown, it is a schematic diagram of the change of acceleration sound wave gain.

[0171] It should be noted that after implementation, the embodiments of the present application:

[0172] First, it can adapt to the different background noises of the hybrid system's EV mode, series mode, and parallel mode engine and generator, making the simulated sound less abrupt;

[0173] Different sound modes can be configured to correspond to different sound effects in the car.

[0174] Second, it simulates the shifting action of a traditional gearbox to enrich the sound effect inside the car when accelerating;

[0175] Third, as shown in the accompanying drawings Figure 8 As shown, the sound wave compensation is combined with the vehicle speed. The faster the speed is when the throttle opening is medium or large, the louder the sound wave is, so as to offset the background noise such as chassis noise, wind noise, engine noise, etc. at medium and high speeds.

[0176] Fourth, the power amplifier has different output channels, and the sound waves and multimedia sounds can be clearly distinguished, while the sound waves and multimedia sounds are both sounded simultaneously based on the speakers.

[0177] It should be noted that the acceleration sound logic judgment is carried out in combination with the working configuration of the hybrid system. The in-vehicle sound algorithm is specially fitted based on the different engine and motor in-vehicle background noises in EV mode / 0-60kmh, series mode / 0-60kmh, parallel mode / 60-130kmh and above, making the in-vehicle sound less abrupt and more realistic.

[0178] As shown in the accompanying drawings Figure 9 As shown, according to the different vehicle interior background noises of EV mode / 0-60kmh, series mode / 0-60kmh, parallel mode / 60-130kmh and above, the engine 1-60 order noise is added for matching.

[0179] In addition, the acceleration sound effect is adjusted by combining the drive motor speed and the accelerator pedal opening. The frequency component of the sound changes with the motor speed, and the amplitude of the sound changes with the accelerator pedal opening.

[0180] Likewise, as shown in the accompanying drawings Figure 9 As shown, for different interior background noises in EV mode / 0-60kmh, series mode / 0-60kmh, parallel mode / 60-130kmh and above, the engine 1-60 order noise is added for matching, and then combined with the drawings in the specification Figure 8 , you can know how loud the throttle opening controls the noise level.

[0181] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0182] The above are merely specific embodiments of the present application to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather is intended to conform to the widest scope consistent with the principles and novel features of the present application.

Claims

1. A method for simulating the sound of a sports car, characterized in that: The method comprises the following steps: Generate corresponding sound wave simulation signals based on the EV working mode, series working mode, and parallel working mode of the vehicle hybrid system; Generates a corresponding sound wave simulation signal based on the drive motor speed and accelerator pedal opening; Based on the gear shift map of the transmission, in response to the gear shift operation of the drive motor, a corresponding sound wave simulation signal is generated; Based on the vehicle speed signal, when the vehicle speed increases, a corresponding sound wave simulation signal is generated; Performing sound wave simulation based on the sound wave simulation signal; The operating modes of the vehicle hybrid system include a first operating mode, a second operating mode and a third operating mode; In the first working mode, the gasoline engine drives the generator to generate electricity at idle speed; In the second working mode, the drive motor drives the rotating shaft to adopt pure electric drive when the vehicle speed is below the preset speed, and adopts power-assisted drive when the vehicle speed is above the preset speed; In the third working mode, the gasoline engine drives the propeller shaft in direct drive when the vehicle speed is above the preset speed; The operating modes of the vehicle hybrid system include EV operating mode, series operating mode and parallel operating mode; EV working mode is the second working mode; The series working mode is a combination of the first working mode and the second working mode; The parallel working mode is a combination of the first working mode, the second working mode and the third working mode.

2. The method for simulating sports car sound waves according to claim 1, wherein: Generating a corresponding sound wave simulation signal based on the drive motor speed and accelerator pedal opening includes the following steps: generating a sound frequency signal based on the rotational speed of the driving motor; generating a sound wave amplitude signal based on the accelerator pedal opening; Based on the sound wave frequency signal and the sound wave amplitude signal, a corresponding sound wave simulation signal is generated.

3. The method for simulating sports car sound waves according to claim 1, wherein: Based on the sound wave simulation signal, the sound wave simulation is performed, including the following steps: Using a power amplifier to receive the sound wave simulation signal and transmit it to the multimedia device in the vehicle; The in-vehicle multimedia device performs sound simulation in response to the sound simulation signal.

4. A sports car sound simulation device, characterized in that: The device comprises: A first analog signal generation module is used to generate a corresponding sound wave simulation signal based on the EV operating mode, series operating mode, and parallel operating mode of the vehicle hybrid system; A second analog signal generating module, which is used to generate a corresponding sound wave simulation signal based on the driving motor speed and the accelerator pedal opening; a third simulation signal generating module, configured to generate a corresponding sound wave simulation signal in response to a shift operation of the drive motor based on a shift map of the transmission; a fourth simulation signal generating module, configured to generate a corresponding sound wave simulation signal based on the vehicle speed signal when the vehicle speed increases; a sound wave simulation module, configured to perform sound wave simulation based on the sound wave simulation signal; The operating modes of the vehicle hybrid system include a first operating mode, a second operating mode and a third operating mode; In the first working mode, the gasoline engine drives the generator to generate electricity at idle speed; In the second working mode, the drive motor drives the rotating shaft to adopt pure electric drive when the vehicle speed is below the preset speed, and adopts power-assisted drive when the vehicle speed is above the preset speed; In the third working mode, the gasoline engine drives the propeller shaft in direct drive when the vehicle speed is above the preset speed; The operating modes of the vehicle hybrid system include EV operating mode, series operating mode and parallel operating mode; EV working mode is the second working mode; The series working mode is a combination of the first working mode and the second working mode; The parallel working mode is a combination of the first working mode, the second working mode and the third working mode.

5. The sports car sound simulation device according to claim 4, characterized in that: The second analog signal generating module is further configured to generate a sound frequency signal based on the rotational speed of the driving motor; The second analog signal generating module is further configured to generate a sound wave amplitude signal based on the accelerator pedal opening; The second analog signal generating module is further configured to generate a corresponding sound wave analog signal based on the sound wave frequency signal and the sound wave amplitude signal.

6. The sports car sound simulation device according to claim 4, characterized in that: The sound wave simulation module is further used to receive the sound wave simulation signal using a power amplifier and transmit it to the multimedia device in the vehicle; The sound wave simulation module is also used for the in-vehicle multimedia device to respond to the sound wave simulation signal and perform sound wave simulation.

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