WO2024001919A1 - 增程器控制方法及相关设备 - Google Patents

增程器控制方法及相关设备 Download PDF

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Publication number
WO2024001919A1
WO2024001919A1 PCT/CN2023/101854 CN2023101854W WO2024001919A1 WO 2024001919 A1 WO2024001919 A1 WO 2024001919A1 CN 2023101854 W CN2023101854 W CN 2023101854W WO 2024001919 A1 WO2024001919 A1 WO 2024001919A1
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Prior art keywords
sound pressure
pressure level
range extender
working condition
sound
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PCT/CN2023/101854
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English (en)
French (fr)
Inventor
张洪洋
祝勇
曹文宇
华飞
王豪
蒙越
宁昀鹏
Original Assignee
北京罗克维尔斯科技有限公司
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Publication of WO2024001919A1 publication Critical patent/WO2024001919A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/0098—Details of control systems ensuring comfort, safety or stability not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/15—Control strategies specially adapted for achieving a particular effect
    • B60W20/17—Control strategies specially adapted for achieving a particular effect for noise reduction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/60—Information retrieval; Database structures therefor; File system structures therefor of audio data
    • G06F16/61—Indexing; Data structures therefor; Storage structures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/60—Information retrieval; Database structures therefor; File system structures therefor of audio data
    • G06F16/68—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/141—Discrete Fourier transforms
    • G06F17/142—Fast Fourier transforms, e.g. using a Cooley-Tukey type algorithm

Definitions

  • the present disclosure relates to the technical field of range extender control, and specifically relates to a range extender control method and device, electronic equipment, vehicles, non-transitory computer-readable storage media, computer program products and computer programs.
  • NVH Noise, Vibration, Harshness
  • the purpose of the present disclosure is to propose a range extender control method and device, electronic equipment, vehicles, non-transitory computer-readable storage media, computer program products and computer programs to solve or partially solve the above technology. question.
  • the first aspect of the embodiment of the present disclosure provides a range extender control method, including:
  • the sound pressure level margin is obtained through processing based on the sound pressure level of the environmental noise and the real-time fitted sound quality limit, and it is determined from the pre-established range extender working condition database that the sound pressure level is less than or equal to the sound pressure level.
  • the corresponding operating conditions of the pressure stage margin are used as the corrected target operating conditions of the range extender;
  • the The sound pressure level under the condition is corrected by the corrected sound pressure function to obtain the corrected sound pressure level;
  • obtaining the sound pressure level of environmental noise includes:
  • the total noise spectrum and the current noise spectrum are subtracted to obtain an environmental noise spectrum, and the sound pressure level of the environmental noise is obtained based on the environmental noise spectrum.
  • obtaining the current noise spectrum according to the current sound pressure level includes:
  • the least mean square algorithm is used to process the reference time domain sound wave using the binary search method within a period of time to obtain the target time domain sound wave corresponding to the best fitting result;
  • obtaining the sound pressure level of the environmental noise according to the environmental noise spectrum includes:
  • the corresponding sound pressure P unfiltered is obtained according to the environmental noise spectrum
  • obtaining the real-time fitted sound quality limit of the vehicle during driving includes:
  • the real-time driving speed of the vehicle during driving is obtained, and the corresponding real-time fitted sound quality limit is determined from the pre-established range extender working condition database according to the real-time driving speed.
  • the sound pressure level margin is obtained by processing based on the sound pressure level of the environmental noise and the real-time fitted sound quality limit, including:
  • the sound pressure level SPL amb of the environmental noise and the real-time fitting sound quality limit SPL Limit are processed to obtain the sound pressure level margin. SPL marge .
  • the modified sound pressure function is a modified fusion sound pressure function
  • the correction is performed based on the sound pressure level of the environmental noise and the sound pressure level of the range extender under each working condition in the pre-established range extender working condition database to obtain the corrected sound pressure level, including:
  • the range extender is a four-cylinder machine. According to the second order of the rotating machinery, the sound pressure level SPL amb of the environmental noise and the pre-established range extender working condition database are calculated through the modified fusion sound pressure function. The sound pressure level SPL eng of the range extender under various working conditions is superimposed in phase to obtain the corrected sound pressure level SPL sum .
  • the corrected fusion sound pressure function is expressed as:
  • abs represents the function used to find the absolute value of the data
  • P eng2 represents the sound pressure corresponding to the working condition when the rotating mechanical order of the range extender is second order
  • P eng2 represents the sound pressure corresponding to the environmental noise.
  • the real-time fitted sound quality limit value corresponding to the correction target working condition of the range extender is compared with the corrected sound pressure level, and the correction target of the range extender is determined according to the comparison result. Adjustments should be made to working conditions, including:
  • control the range extender In response to determining that the real-time fitted sound quality limit corresponding to the corrected target working condition of the range extender is less than or equal to the corrected sound pressure level, control the range extender to operate according to the corrected target working condition;
  • the range extender power corresponding to the corrected target operating condition of the range extender is adjusted according to the preset The step size is reduced to obtain the real-time fitted sound quality limit value of the corrected target operating condition after reducing the power range extender;
  • Correction processing is performed according to the sound pressure level of the environmental noise and the real-time fitted sound quality limit of the corrected target operating condition through the reduced power range extender to obtain a re-corrected sound pressure level, and the re-corrected sound pressure is The level is compared with the real-time fitted sound quality limit value of the corrected target operating condition after reducing the power range extender, and the comparison result is obtained;
  • the correction target that has gone through the reduced power range extender is The operating conditions are used as the final target operating conditions to control the range extender to operate according to the final target operating conditions.
  • the establishment process of the range extender operating condition database includes:
  • the spectrum data corresponding to each working condition is determined according to the MAP optimal fuel consumption line of the range extender, and the noise time domain data of the range extender under each working condition and the rotation speed of the range extender under each working condition are obtained , and obtain the corresponding sound pressure level limits of the vehicle at different driving speeds, perform fitting processing according to the corresponding sound pressure level limits of the vehicle at different driving speeds, and obtain the fitted sound quality limit;
  • the frequency function is used to calculate Calculate the rotation frequency of the range extender under various working conditions
  • the sound pressure levels of the range extender under various working conditions and the corresponding fitted sound quality limits of the vehicle at different driving speeds are integrated as the range extender working condition data.
  • the fitting process is performed according to the sound pressure level limit corresponding to the vehicle at various driving speeds to obtain the fitted sound quality limit, including:
  • a fitting function is obtained according to the sound pressure level limit corresponding to the vehicle at each driving speed.
  • the driving speed of the vehicle during driving is fitted by the fitting function to obtain the fitting sound quality limit. value.
  • the rotation frequency of the range extender under each working condition is calculated through a frequency function based on the spectrum data corresponding to each working condition and the rotational speed of the range extender under each working condition, including:
  • the sound pressure level of the range extender under each working condition is calculated through a second sound pressure level function based on the rotational frequency under each working condition, including:
  • a second aspect of the embodiment of the present disclosure provides a range extender control device, including:
  • the data acquisition module is configured to obtain the sound pressure level of environmental noise and obtain the real-time fitted sound quality limit of the vehicle during driving;
  • the sound pressure level margin determination module is configured to obtain the sound pressure level margin based on the sound pressure level of the environmental noise and the real-time fitted sound quality limit value, and obtain the sound pressure level margin from the pre-established range extender operating condition database. Determine the corresponding operating conditions in which the sound pressure level is less than or equal to the sound pressure level margin, and use the corresponding operating conditions as the correction target operating conditions of the range extender;
  • a corrected sound pressure level determination module configured to correct the sound pressure function according to the sound pressure level of the environmental noise and the sound pressure level of the range extender under each working condition in the pre-established range extender working condition database. Make corrections to obtain the corrected sound pressure level;
  • the range extender operating condition comparison and adjustment module is configured to adjust the real-time fitting sound corresponding to the corrected target operating condition of the range extender.
  • the quality limit value is compared with the corrected sound pressure level, and the correction target working condition of the range extender is adjusted according to the comparison result.
  • a third aspect of the embodiment of the present disclosure provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor The method described in any embodiment of the first aspect is implemented when the program is executed.
  • a fourth aspect of the embodiments of the present disclosure provides a vehicle, including the electronic device described in any embodiment of the third aspect.
  • a fifth aspect of the embodiments of the present disclosure provides a non-transitory computer-readable storage medium that stores computer instructions, and the computer instructions are used to cause the computer to execute The method described in any embodiment of the first aspect.
  • a sixth aspect of the embodiments of the present disclosure provides a computer program product, including a computer program. When executed by a processor, the computer program is used to implement any embodiment of the first aspect of the disclosure. method described.
  • a seventh aspect of the embodiment of the present disclosure provides a computer program, including a computer program code.
  • the computer program code When the computer program code is run on a computer, the computer executes any one of the first aspects of the present disclosure. methods described in the examples.
  • the range extender control method and related equipment retrieve the corresponding operating conditions that are less than or equal to the sound pressure level margin from the pre-established range extender operating condition database to Realize personalized vehicle control to avoid control deviations caused by vehicle inconsistency, and then use the corresponding working conditions as the correction target working conditions, and then increase the range based on the obtained sound pressure level of environmental noise and the pre-established range extender working condition database By correcting the sound pressure level of the device under various working conditions, the corrected sound pressure level can be obtained. Finally, the sound pressure level corresponding to the correction target working condition is compared with the corrected sound pressure level, and the correction target of the range extender is determined based on the comparison results. Adjust the working conditions to achieve online control of the range extender, which can maximize the economy of the vehicle while maintaining better comfort.
  • Figure 1 is a flow chart of a range extender control method according to an embodiment of the present disclosure
  • Figure 2 is a schematic structural diagram of a range extender control device according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of an electronic device according to an embodiment of the present disclosure.
  • a range extender generally refers to an electric vehicle component that can provide additional electrical energy so that an electric vehicle can increase its driving range.
  • a range extender refers to a combination of an engine and a generator.
  • Sound pressure the change in atmospheric pressure caused by sound wave disturbance, is the residual pressure of atmospheric pressure, which is equivalent to the pressure change caused by a sound wave disturbance superimposed on the atmospheric pressure.
  • Sound pressure level uses logarithmic grading as a common unit to express the sound size. This is the sound pressure level.
  • the range extender MAP the ignition control curve required by the engine under various operating conditions, is called the MAP chart. It is passed through a series of sensors, such as the range extender speed sensor, the intake pipe vacuum sensor (engine load sensor), and the throttle valve. Position sensor, crankshaft position sensor, etc. to determine the working status of the range extender. Find the ignition advance angle required by the range extender in this working status on the MAP diagram, and perform ignition according to this requirement.
  • a four-cylinder engine is an engine composed of four cylinders. Inside, four identical single cylinders are arranged on a body and share a crankshaft to output power. Its main function is to convert chemical energy into mechanical energy.
  • the order of rotating machinery refers to the number of occurrences of a certain time in each rotation of a rotating part. It is the response of vibration or/and noise caused by the rotation of the rotating part of the structure. This order response has a corresponding relationship with the rotation speed and frequency. To be precise, the order is a multiple of the rotational speed or frequency.
  • Embodiments of the present disclosure provide a range extender control method and device, electronic equipment, vehicles, and non-transient computers
  • a readable storage medium, a computer program product, and a computer program can control the range extender online to maximize the economy of the vehicle while maintaining better comfort, and can avoid control deviations caused by vehicle inconsistencies.
  • the method in this embodiment includes steps 101 to 104.
  • Step 101 Obtain the sound pressure level of the environmental noise and obtain the real-time fitted sound quality limit of the vehicle during driving.
  • the sound pressure level of the environmental noise is obtained based on the environmental noise spectrum.
  • different brands of vehicles have their own standards for real-time fitting sound product limits. Therefore, the real-time fitting sound product is based on the real-time operating speed of the vehicle. It is calculated according to the own brand's real-time fitting sound product limit standards, which is the basis for realizing personalized vehicle control and avoiding control deviations caused by vehicle inconsistency.
  • Step 102 Perform processing based on the sound pressure level of the environmental noise and the real-time fitted sound quality limit to obtain a sound pressure level margin, and determine from the pre-established range extender working condition database that the sound pressure level is less than or equal to The corresponding operating conditions of the sound pressure level margin are used as the correction target operating conditions of the range extender.
  • the sound pressure level margin is used as the standard by querying from the pre-established range extender working condition database to find the corresponding working conditions when the sound pressure level is less than or equal to the sound pressure level margin, and this working condition is As the correction target operating condition, to prepare for subsequent correction of operating condition points.
  • Step 103 Correct the sound pressure level of the range extender under each working condition according to the sound pressure level of the environmental noise and the sound pressure level of the range extender under each working condition in the pre-established range extender working condition database to obtain the corrected sound pressure function. class.
  • the real-time fitting sound quality limit is obtained by superposing different frequency components, there is a possibility that it is too high.
  • the frequency components are the same and the phase is the same, the superimposed sound pressure level may exceed the sound pressure level. level margin, resulting in exceeding the limit value and reducing the NVH experience. Therefore, it is necessary to correct the sound pressure level according to the sound pressure level of the ambient noise and the sound pressure level of the range extender under each working condition in the pre-established range extender working condition database.
  • the pressure function is corrected to obtain the corrected sound pressure level.
  • Step 104 Compare the real-time fitted sound quality limit value corresponding to the corrected target working condition of the range extender with the corrected sound pressure level, and adjust the corrected target working condition of the range extender according to the comparison result.
  • the sound pressure level corresponding to the correction target operating condition is compared with the corrected sound pressure level. If the sound pressure level corresponding to the corrected target operating condition of the range extender is less than or equal to the corrected sound pressure level, the range extender is controlled. Operate according to the corrected target operating conditions;
  • the power of the range extender is reduced according to the preset step size, and then correction processing is performed. Obtain the re-corrected sound pressure level, and then compare the obtained re-corrected sound pressure level with the real-time fitting sound quality limit. If the comparison result is still greater than the re-corrected sound pressure level, the correction cycle will be repeated until it is less than or equal to the re-corrected sound pressure level.
  • the corresponding correction target working condition of the range extender is used as the final target working condition, and the range extender is controlled to operate according to the final target working condition, thereby realizing online control of the range extender, and the operation adjustment of the range extender will be
  • the environmental sound changes continuously during driving it is ensured that the sound of the range extender can always be in a state that does not interfere with the user during driving, maximizing the economy of the vehicle while maintaining better comfort.
  • step 101 obtaining the sound pressure level of environmental noise includes steps A1 to A3.
  • Step A1 Obtain real-time noise data of the vehicle during driving, and perform conversion processing based on the real-time noise data to obtain the total noise spectrum.
  • Step A2 Determine the current working condition of the range extender while the vehicle is driving, determine the sound pressure level corresponding to the current working condition from the pre-established range extender working condition database, and convert the sound pressure level corresponding to the current working condition into The sound pressure level is used as the current sound pressure level, and the current noise spectrum is obtained based on the current sound pressure level.
  • Step A3 Subtract the total noise spectrum and the current noise spectrum to obtain an environmental noise spectrum, and obtain the sound pressure level of the environmental noise based on the environmental noise spectrum.
  • sound collecting equipment can be used to obtain real-time noise data of the corresponding operating conditions of the vehicle during operation.
  • This real-time noise data includes both the noise emitted by the vehicle during operation and environmental noise. Since the real-time noise data is time-domain data collected through sound-collecting equipment (i.e., real-time noise data), the real-time noise data needs to be processed by fast Fourier transform (FFT, fast Fourier transform) to convert the time domain data into the frequency domain. data to obtain the total noise spectrum.
  • FFT fast Fourier transform
  • each parameter data of the range extender during current driving as the current working condition search for the sound pressure level (unit DB decibel) corresponding to the current working condition from the pre-built range extender working condition database, and add the corresponding sound pressure level of the current working condition to The sound pressure level is used as the current sound pressure level, and the sound pressure level of the environmental noise is obtained based on the environmental noise spectrum.
  • the total noise spectrum contains the noise spectrum of the range extender under the current working condition of the range extender (i.e., the current noise spectrum) and the environmental noise spectrum, it is necessary to directly add the noise of the range extender under the current working condition to the total noise spectrum.
  • the environmental noise spectrum can be obtained by subtracting the spectrum, and the sound pressure level of the environmental noise can be obtained according to the environmental noise spectrum.
  • step A2 obtaining the current noise spectrum according to the current sound pressure level includes steps A21 to A24.
  • Step A21 Perform signal conversion on the current sound pressure level to obtain time domain waveform data.
  • Step A22 Expand the time domain waveform data to a preset data processing window length, and perform delay processing according to the preset initialization delay to form a reference time domain sound wave.
  • Step A23 Use the least mean square algorithm to process the reference time domain sound wave using the binary search method within a period of time to obtain the target time domain sound wave corresponding to the best fitting result.
  • Step A24 Perform fast Fourier transform processing on the target time domain sound wave to obtain the current noise spectrum.
  • the preset data processing window length can be set according to the actual situation, and the specific value can be changed.
  • the corresponding time domain waveform data is extended to the length of the data processing window, and delayed according to the preset initialization delay to form a reference time domain sound wave. This ensures that the obtained reference time domain sound wave can satisfy the least mean square algorithm (LMS algorithm) ) processing requirements.
  • LMS algorithm least mean square algorithm
  • the binary search method uses the binary search method to find the time domain sound wave with the best fitting result based on the reference time domain sound wave within one cycle corresponding to four working cycles. change this time domain
  • the sound wave is used as the target time domain sound wave, and the current noise spectrum is obtained after fast Fourier transform conversion. In this way, the current noise spectrum obtained is more accurate.
  • step A3 obtaining the sound pressure level of the environmental noise according to the environmental noise spectrum includes steps A31 to A32.
  • Step A31 Obtain the corresponding sound pressure P unfiltered according to the environmental noise spectrum.
  • Step A32 based on the first sound pressure function Calculate the sound pressure level SPL amb of environmental noise, where Pref represents the reference sound pressure and is a constant value.
  • step 101 obtaining the real-time fitted sound quality limit of the vehicle during driving includes:
  • the real-time driving speed of the vehicle during driving is obtained, and the corresponding real-time fitted sound quality limit is determined from the pre-established range extender working condition database according to the real-time driving speed.
  • the pre-established range extender working condition database contains the corresponding fitted sound quality limits at various driving speeds.
  • Different brands of vehicles have their own fitted sound quality limit standards.
  • the real-time driving speed of the vehicle during driving is obtained.
  • the The fitted sound quality limit corresponding to the driving speed is determined in the established amplifier database as the real-time fitted sound quality limit, which reduces the space for data storage.
  • processing to obtain a sound pressure level margin based on the sound pressure level of the environmental noise and the real-time fitted sound quality limit includes:
  • the sound pressure level SPL amb of the environmental noise and the real-time fitting sound quality limit SPL Limit are processed to obtain the sound pressure level margin SPL marge .
  • the modified sound pressure function is a modified fusion sound pressure function
  • Step 103 includes:
  • the range extender is a four-cylinder machine. According to the second order of the rotating machinery, the sound pressure level SPL amb of the environmental noise and the pre-established range extender working condition database are calculated through the modified fusion sound pressure function. The sound pressure level SPL eng of the range extender under various working conditions is superimposed in phase to obtain the corrected sound pressure level SPL sum .
  • the corrected fusion sound pressure function is expressed as:
  • abs represents the function used to find the absolute value of the data
  • P eng2 represents the sound pressure corresponding to the working condition when the rotating mechanical order of the range extender is second order
  • P eng2 represents the sound pressure corresponding to the environmental noise.
  • the component of the second-order rotating machinery accounts for the highest energy. Therefore, the components of the second-order rotating machinery are superposed in the same phase, and the sound pressure function is fused through correction To achieve this in-phase superposition, the sound pressure level of the ambient noise and the sound pressure level of the range extender under each working condition in the pre-established range extender working condition database are added in the same phase to obtain the corrected sound pressure level.
  • step 104 includes steps 1041 to 1044.
  • Step 1041 in response to determining that the real-time fitted sound quality limit corresponding to the corrected target operating condition of the range extender is less than or equal to the corrected sound pressure level, control the range extender to operate according to the corrected target operating condition.
  • Step 1042 in response to determining that the real-time fitted sound quality limit corresponding to the corrected target operating condition of the range extender is greater than the corrected sound pressure level, adjust the range extender power corresponding to the corrected target operating condition of the range extender according to the preset value. Set the step size to perform reduction processing, and obtain the real-time fitted sound quality limit value of the corrected target operating condition after reducing the power range extender.
  • Step 1043 Perform correction processing based on the sound pressure level of the environmental noise and the real-time fitted sound quality limit of the corrected target operating condition with reduced power to obtain a re-corrected sound pressure level, and convert the re-corrected sound pressure The level is compared with the real-time fitted sound quality limit value of the corrected target operating condition after reducing the power range extender, and a comparison result is obtained.
  • Step 1044 in response to determining that the comparison result is that the re-corrected sound pressure level is less than or equal to the real-time fitted sound quality limit of the corrected target operating condition after the reduced power range extender, the reduced power range extender is
  • the corrected target working condition is used as the final target working condition to control the range extender to operate according to the final target working condition.
  • the range extender is controlled to operate according to the correction target working condition. If it is greater than the corrected sound pressure level, it proves that it will cause discomfort to the user's hearing. In order to improve comfort and meet driving needs, it is necessary to reduce the range extender power according to the preset step size on the basis of correcting the target working conditions. Then perform correction processing to obtain the re-corrected sound pressure level, and then compare the obtained re-corrected sound pressure level with the real-time fitting sound quality limit.
  • the correction cycle will be repeated until If the sound pressure level is less than or equal to the sound pressure level, then correct the sound pressure level, and use the corresponding correction target working condition as the final target working condition, and adjust the sound pressure level according to the correction target working condition.
  • the parameters of the range extender are adjusted under the positive target working conditions, and based on this operation, the online control of the range extender is realized.
  • the operation adjustment of the range extender will continue to change with the changes in environmental sounds during driving, ensuring The sound of the range extender can always be in a state that does not disturb the user during driving, which can maximize the economy of the vehicle while maintaining better comfort.
  • the establishment process of the range extender operating condition database includes:
  • the sound pressure levels of the range extender under each working condition and the corresponding fitted sound quality limits of the vehicle at different driving speeds are integrated as the range extender working condition data.
  • the quiet environment in the establishment of the range extender working condition database refers to the absence of interference from other sounds except the sound of the vehicle itself.
  • the spectrum corresponding to each working condition is determined according to the range extender MAP optimal fuel consumption line.
  • each working condition point represents the operating parameters of the range extender, obtain the speed of the range extender under each working condition, use the vehicle's sound collecting equipment to record the noise under each working condition, and convert the signal into it through an oscilloscope
  • the noise time domain data also obtains the corresponding sound pressure level limits of the vehicle at different driving speeds. According to the corresponding sound pressure level limits of the vehicle at different driving speeds, the fitting is performed according to the vehicle brand's own fitting sound quality limit standard. After processing, the fitted sound quality limit value is obtained as the data in the range extender working condition database.
  • the rotation frequency of the range extender under each working condition is calculated through the frequency function based on the spectrum data corresponding to each working condition and the rotational speed of the range extender under each working condition, and the second sound pressure level is calculated based on the rotation frequency under each working condition.
  • the function calculates the sound pressure level of the range extender under various operating conditions.
  • the range extender is a four-cylinder engine, and its noise energy is concentrated in the 1st, 2nd, 4th, 6th, and 8th orders. Each order can be calculated through the frequency function.
  • the unit is pa (Pascal)
  • the obtained sound pressure to calculate the sound pressure level of the range extender under each working condition through the second sound pressure level function
  • the sound pressure level of the range extender under each working condition is used as the data in the range extender working condition database.
  • the fitting process is performed according to the sound pressure level limit corresponding to the vehicle at various driving speeds to obtain the fitted sound quality limit, including:
  • a fitting function is obtained according to the corresponding sound pressure level limit value of the vehicle at each driving speed, and the driving speed of the vehicle during driving is fitted by the fitting function to obtain the fitting sound quality limit value.
  • the fitting function represents the standard of the fitted sound quality limit of vehicles of different brands.
  • the fitted sound quality limit standard of a certain vehicle is:
  • the rotation frequency of the range extender under each working condition is calculated through a frequency function based on the spectrum data corresponding to each working condition and the rotational speed of the range extender under each working condition, including:
  • the range extender is a four-cylinder engine, and its noise energy is concentrated in the 1st, 2nd, 4th, 6th, and 8th orders. Therefore, the rotation frequency Fn corresponding to each order can be calculated through the above frequency function.
  • the sound pressure level of the range extender under each working condition is calculated through a second sound pressure level function based on the rotational frequency under each working condition, including:
  • the sound pressure level of the range extender under various working conditions can be accurately obtained, and the unit of the sound pressure level under each working condition is DB (decibel). It is convenient to find the corresponding sound pressure level directly based on the parameters of the working condition itself, without the need for cumbersome calculation process.
  • the methods in the embodiments of the present disclosure can be executed by a single device, such as a computer or server.
  • the method of this embodiment can also be applied in a distributed scenario, and is completed by multiple devices cooperating with each other.
  • one device among the multiple devices can only perform one or more steps in the method of the embodiment of the present disclosure, and the multiple devices will interact with each other to complete all the steps. method described.
  • the present disclosure also provides a range extender control device.
  • the range extender control device includes a data acquisition module 201, a sound pressure level margin determination module 202, a corrected sound pressure level determination module 203 and a range extender operating condition comparison and adjustment module 204.
  • the data acquisition module 201 is configured to acquire the sound pressure level of environmental noise and acquire the real-time fitted sound quality limit of the vehicle during driving.
  • the sound pressure level margin determination module 202 is configured to obtain a sound pressure level margin based on the sound pressure level of the environmental noise and the real-time fitted sound quality limit, and obtain the sound pressure level margin from the pre-established range extender operating conditions. Corresponding operating conditions whose sound pressure level is less than or equal to the sound pressure level margin are determined in the database, and the corresponding operating conditions are used as the correction target operating conditions of the range extender.
  • the corrected sound pressure level determination module 203 is configured to correct the sound pressure according to the sound pressure level of the environmental noise and the sound pressure level of the range extender under each operating condition in the pre-established range extender operating condition database. The function is corrected to obtain the corrected sound pressure level.
  • the range extender operating condition comparison and adjustment module 204 is configured to compare the real-time fitted sound quality limit value corresponding to the corrected target operating condition of the range extender with the corrected sound pressure level, and adjust the range extender according to the comparison result. Adjust the correction target working condition of the programmer.
  • the data acquisition module 201 includes a total noise spectrum acquisition unit, a current noise spectrum acquisition unit and an environmental noise spectrum acquisition unit.
  • the total noise spectrum acquisition unit is configured to obtain real-time noise data of the vehicle during driving, and perform conversion processing based on the real-time noise data to obtain the total noise spectrum;
  • the current noise spectrum acquisition unit is configured to determine the current working condition of the range extender when the vehicle is driving, determine the sound pressure level corresponding to the current working condition from the pre-established range extender working condition database, and obtain the sound pressure level corresponding to the current working condition.
  • the sound pressure level corresponding to the current working condition is used as the current sound pressure level, and the current noise spectrum is obtained according to the current sound pressure level;
  • the environmental noise spectrum acquisition unit is configured to subtract the total noise spectrum and the current noise spectrum to obtain an environmental noise spectrum, and obtain the sound pressure level of the environmental noise based on the environmental noise spectrum.
  • the current noise spectrum acquisition unit is specifically configured as:
  • the least mean square algorithm is used to process the reference time domain sound wave using the binary search method within a period of time to obtain the target time domain sound wave corresponding to the best fitting result;
  • the environmental noise spectrum acquisition unit is specifically configured as:
  • the corresponding sound pressure P unfiltered is obtained according to the environmental noise spectrum
  • the data acquisition module 201 is specifically configured to:
  • the real-time driving speed of the vehicle during driving is obtained, and the corresponding real-time fitted sound quality limit is determined from the pre-established range extender working condition database according to the real-time driving speed.
  • the sound pressure level margin determination module 202 is specifically configured as:
  • the sound pressure level SPL amb of the environmental noise and the real-time fitting sound quality limit SPL Limit are processed to obtain the sound pressure level margin SPL marge .
  • the modified sound pressure function is a modified fusion sound pressure function
  • the corrected sound pressure level determination module 203 is specifically configured as:
  • the range extender is a four-cylinder machine. According to the second order of the rotating machinery, the sound pressure level SPL amb of the environmental noise and the pre-established range extender working condition database are calculated through the modified fusion sound pressure function. The sound pressure level SPL eng of the range extender under various working conditions is superimposed in phase to obtain the corrected sound pressure level SPL sum .
  • the corrected fusion sound pressure function is expressed as:
  • abs represents the function used to find the absolute value of the data
  • P eng2 represents the sound pressure corresponding to the working condition when the rotating mechanical order of the range extender is second order
  • P eng2 represents the sound pressure corresponding to the environmental noise.
  • the range extender operating condition comparison and adjustment module 204 is specifically configured as:
  • control the range extender In response to determining that the real-time fitted sound quality limit corresponding to the corrected target working condition of the range extender is less than or equal to the corrected sound pressure level, control the range extender to operate according to the corrected target working condition;
  • the range extender power corresponding to the corrected target operating condition of the range extender is adjusted according to the preset step size Perform reduction processing to obtain the real-time fitted sound quality limit value of the corrected target operating condition after reducing the power range extender;
  • Correction processing is performed according to the sound pressure level of the environmental noise and the real-time fitted sound quality limit value of the corrected target operating condition with reduced power to obtain a re-corrected sound pressure level, and the re-corrected sound pressure level is combined with the corrected sound pressure level.
  • the above process reduces the power range extender Compare the real-time fitted sound quality limits of the correction target working conditions to obtain the comparison results;
  • the correction target that has gone through the reduced power range extender is The operating conditions are used as the final target operating conditions to control the range extender to operate according to the final target operating conditions.
  • the range extender control device further includes a range extender operating condition database establishment module, including a fitting processing unit, a rotation frequency acquisition unit, a sound pressure level acquisition unit and a database integration unit.
  • a range extender operating condition database establishment module including a fitting processing unit, a rotation frequency acquisition unit, a sound pressure level acquisition unit and a database integration unit.
  • the fitting processing unit is configured to determine the spectrum data corresponding to each working condition according to the MAP optimal fuel consumption line of the range extender in a quiet environment, and obtain the noise time domain data of the range extender under each working condition and the range extender under each working condition.
  • the rotational speed under each working condition is obtained, and the corresponding sound pressure level limits of the vehicle at different driving speeds are obtained.
  • Fitting processing is performed based on the corresponding sound pressure level limits of the vehicle at different driving speeds to obtain the fitted sound quality limit. value.
  • the rotation frequency acquisition unit is configured to calculate the rotation frequency of the range extender under each working condition through a frequency function based on the spectrum data corresponding to each working condition and the rotation speed of the range extender under each working condition.
  • the sound pressure level acquisition unit is configured to calculate the sound pressure level of the range extender under each working condition through a second sound pressure level function based on the rotation frequency under each working condition.
  • the database integration unit is configured to integrate the sound pressure levels of the range extender under various working conditions and the corresponding fitted sound quality limits of the vehicle at different driving speeds as the range extender working condition data.
  • the fitting processing unit is specifically configured as:
  • a fitting function is obtained according to the corresponding sound pressure level limit value of the vehicle at each driving speed, and the driving speed of the vehicle during driving is fitted by the fitting function to obtain the fitting sound quality limit value.
  • the rotation frequency acquisition unit is specifically configured as:
  • the sound pressure level acquisition unit is specifically configured as:
  • embodiments of the present disclosure also provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor.
  • the processor executes the program, the range extender control method described in any of the above embodiments is implemented.
  • FIG. 3 shows a more specific hardware structure diagram of an electronic device provided in this embodiment.
  • the device may include: a processor 301, a memory 302, an input/output interface 303, a communication interface 304 and a bus 305.
  • the processor 301, the memory 302, the input/output interface 303 and the communication interface 304 realize communication connections between each other within the device through the bus 305.
  • the processor 301 can be implemented by a general CPU (Central Processing Unit, central processing unit), a microprocessor, an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits, and is used to execute related tasks. program to implement the technical solutions provided by the embodiments of this specification.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • the memory 302 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc.
  • the memory 302 can store operating systems and other application programs. When the technical solutions provided by the embodiments of this specification are implemented through software or firmware, the relevant program codes are stored in the memory 302 and called and executed by the processor 301.
  • the input/output interface 303 is used to connect the input/output module to realize information input and output.
  • the input/output/module can be configured in the device as a component (not shown in the figure), or can be externally connected to the device to provide corresponding functions.
  • Input devices can include keyboards, mice, touch screens, microphones, various sensors, etc., and output devices can include monitors, speakers, vibrators, indicator lights, etc.
  • the communication interface 304 is used to connect a communication module (not shown in the figure) to realize communication interaction between the device and other devices.
  • the communication module can realize communication through wired means (such as USB, network cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).
  • Bus 305 includes a path that carries information between various components of the device (eg, processor 301, memory 302, input/output interface 303, and communication interface 304).
  • the above device only shows the processor 301, the memory 302, the input/output interface 303, the communication interface 304 and the bus 305, during specific implementation, the device may also include necessary components for normal operation. Other components.
  • the above-mentioned device may only include components necessary to implement the embodiments of this specification, and does not necessarily include all components shown in the drawings.
  • the electronic equipment of the above embodiments is used to implement the corresponding range extender control method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be described again here.
  • this embodiment provides a vehicle including the electronic device described in the above embodiment. It has the same technical effect as the method performed on the electronic device and will not be described again here.
  • embodiments of the present disclosure also provide a non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium stores computer instructions, and the computer The instructions are used to cause the computer to execute the range extender control method described in any of the above embodiments.
  • the computer-readable media in this embodiment include permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology.
  • Information may be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), and read-only memory.
  • PRAM phase change memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • RAM random access memory
  • read-only memory read-only memory
  • ROM read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory or other memory technology
  • compact disc read-only memory CD-ROM
  • DVD digital versatile disc
  • Magnetic tape cassettes tape magnetic disk storage or other magnetic storage devices or any other non-transmission medium can be used to store information that can be accessed by a computing device.
  • the computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the range extender control method as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be described again here.
  • embodiments of the present disclosure also provide a computer program product, including a computer program.
  • the computer program When executed by a processor, the computer program implements the range extender as described in any embodiment of the present disclosure. Control Method.
  • embodiments of the present disclosure also provide a computer program.
  • the computer program includes computer program code.
  • the computer program code When the computer program code is run on a computer, it causes the computer to execute any implementation of the present disclosure.
  • DRAM dynamic RAM

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Abstract

提供了一种增程器控制方法及其装置、电子设备、车辆、非暂态计算机可读存储介质、计算机程序产品和计算机程序。所述方法包括从预先建立的增程器工况数据库中调取小于或等于声压级裕量的对应工况，将对应工况作为增程器的矫正目标工况，然后根据获取的环境噪声的声压级和预先建立的增程器工况数据库中的增程器在各个工况下的声压级通过修正声压函数进行修正，就能得到修正声压级，最后将增程器的矫正目标工况对应的声压级与修正声压级进行比较，根据比较结果对增程器的矫正目标工况进行调整。

Description

增程器控制方法及相关设备
相关申请的交叉引用
本申请要求在2022年06月28日在中国提交的中国专利申请号202210751932.4的优先权，其全部内容通过引用并入本文。
技术领域
本公开涉及增程器控制技术领域，具体涉及一种增程器控制方法及其装置、电子设备、车辆、非暂态计算机可读存储介质、计算机程序产品和计算机程序。
背景技术
现有的NVH(Noise、Vibration、Harshness，噪声、振动与声振粗糙度)方案大多为离线控制，也就是在车辆运行的过程中，根据离线控制的方案控制增程器按照一定的工况运行。
然而车辆在行驶过程中，不同的环境因素如风速、路面都会导致环境噪声的不同，进而导致环境噪声和发动机噪声在座舱内融合的声压级产生变化，这使得预先在特定工况条件下定义好的舱内声压级限值不再有效，从而可能导致舱内声压级超出声压极限值而使得舒适性降低，此外，与声压级超出限值之间的差距过大则不能发挥发动机的高效率区域，限制了驾驶的舒适性和经济性的进一步提高。同时，同一款车型不同车辆由于车辆不一致性，例如由于安装出现偏差以及传播路径发生改变，导致存在相同工况的发动机会在不同车辆上产生不同噪声的控制偏差。
发明内容
有鉴于此，本公开的目的在于提出一种增程器控制方法及其装置、电子设备、车辆、非暂态计算机可读存储介质、计算机程序产品和计算机程序，用以解决或部分解决上述技术问题。
基于上述目的，本公开实施例的第一方面提供了一种增程器控制方法，包括：
获取环境噪声的声压级，并获取车辆在行驶过程中的实时拟合声品质限值；
基于所述环境噪声的声压级和所述实时拟合声品质限值进行处理得到声压级裕量，并从预先建立的增程器工况数据库中确定声压级小于或等于所述声压级裕量的对应工况，将所述对应工况作为增程器的矫正目标工况；
根据所述环境噪声的声压级和所述预先建立的增程器工况数据库中的增程器在各个工 况下的声压级通过修正声压函数进行修正，得到修正声压级；
将所述增程器的矫正目标工况对应的实时拟合声品质限值与所述修正声压级进行比较，根据比较结果对所述增程器的矫正目标工况进行调整。
在一些实施例中，所述获取环境噪声的声压级，包括：
获取所述车辆在行驶过程中的实时噪声数据，并基于所述实时噪声数据进行转换处理得到总噪声频谱；
确定所述车辆在行驶过程中所述增程器的当前工况，从所述预先建立的增程器工况数据库中确定所述当前工况对应的声压级，将所述当前工况对应的声压级作为当前声压级，并根据所述当前声压级得到当前噪声频谱；
将所述总噪声频谱与所述当前噪声频谱相减得到环境噪声频谱，并根据所述环境噪声频谱得到所述环境噪声的声压级。
在一些实施例中，所述根据所述当前声压级得到当前噪声频谱，包括：
对所述当前声压级进行信号转换，得到时域波形数据；
扩展所述时域波形数据至预设的数据处理窗口长度，并按照预设的初始化时延进行延时处理，形成参考时域声波；
利用最小均方算法在一个周期时间内利用二分查找法对所述参考时域声波进行处理，得到最佳拟合结果对应的目标时域声波；
对所述目标时域声波进行快速傅里叶变化处理得到所述当前噪声频谱。
在一些实施例中，所述根据所述环境噪声频谱得到所述环境噪声的声压级，包括：
根据环境噪声频谱得到对应的声压Punfiltered；
基于第一声压函数计算环境噪声的声压级SPLamb，其中Pref为表示参考声压，为常数值。
在一些实施例中，所述获取车辆在行驶过程中的实时拟合声品质限值，包括：
获取所述车辆在行驶过程中的实时行驶速度，根据所述实时行驶速度从所述预先建立的增程器工况数据库中确定对应的实时拟合声品质限值。
在一些实施例中，所述基于所述环境噪声的声压级和所述实时拟合声品质限值进行处理得到声压级裕量，包括：
通过声压裕量函数对所述环境噪声的声压级SPLamb和实时拟合声品质限值SPLLimit进行处理，得到声压级裕量 SPLmarge。
在一些实施例中，所述修正声压函数为修正融合声压函数；
所述根据所述环境噪声的声压级和所述预先建立的增程器工况数据库中的增程器在各个工况下的声压级进行修正，得到修正声压级，包括：
所述增程器为四缸机，按照旋转机械阶次为二阶通过所述修正融合声压函数对所述环境噪声的声压级SPLamb和所述预先建立的增程器工况数据库中的增程器在各个工况下的声压级SPLeng进行同相位叠加，得到修正声压级SPLsum，所述修正融合声压函数表示为：
其中，abs表示用于求数据绝对值的函数，Peng2表示增程器的旋转机械阶次为二阶时对应工况的声压，Peng2表示环境噪声对应的声压。
在一些实施例中，所述将所述增程器的矫正目标工况对应的实时拟合声品质限值与所述修正声压级进行比较，根据比较结果对所述增程器的矫正目标工况进行调整，包括：
响应于确定所述增程器的矫正目标工况对应的实时拟合声品质限值小于或等于所述修正声压级，控制所述增程器根据矫正目标工况运行；
响应于确定所述增程器的矫正目标工况对应的实时拟合声品质限值大于所述修正声压级，将所述增程器的矫正目标工况对应的增程器功率按照预设步长进行降低处理，得到经过降低功率增程器的矫正目标工况的实时拟合声品质限值；
根据所述环境噪声的声压级和所述经过降低功率增程器的矫正目标工况的实时拟合声品质限值进行修正处理，得到再修正声压级，并将所述再修正声压级与所述经过降低功率增程器的矫正目标工况的实时拟合声品质限值进行比较，得到对比结果；
响应于确定所述对比结果为再修正声压级小于或等于所述经过降低功率增程器的矫正目标工况的实时拟合声品质限值，将所述经过降低功率增程器的矫正目标工况作为最终目标工况，以控制所述增程器根据所述最终目标工况运行。
在一些实施例中，所述增程器工况数据库的建立过程包括：
在安静环境下，根据增程器MAP最优油耗线确定各个工况对应的频谱数据，获取所述增程器在各个工况下的噪声时域数据和增程器在各个工况下的转速，并获取车辆在不同行驶速度下对应的声压级限值，根据所述车辆在不同行驶速度下对应的声压级限值进行拟合处理，得到拟合声品质限值；
根据所述各个工况对应的频谱数据和所述增程器在各个工况下的转速通过频率函数计 算所述增程器在各个工况下的转动频率；
基于所述各个工况下的转动频率通过第二声压级函数计算增程器在各个工况下的声压级；
将所述增程器在各个工况下的声压级和所述车辆在不同行驶速度下对应的拟合声品质限值进行整合作为增程器工况数据。
在一些实施例中，所述根据所述车辆在各个行驶速度下对应的声压级限值进行拟合处理，得到拟合声品质限值，包括：
根据所述车辆在各个行驶速度下对应的声压级限值得到拟合函数，通过所述拟合函数对所述车辆在行驶过程中的行驶速度进行拟合，得到所述拟合声品质限值。
在一些实施例中，所述根据所述各个工况对应的频谱数据和所述增程器在各个工况下的转速通过频率函数计算增程器在各个工况下的转动频率，包括：
确定所述增程器在各个工况下噪声能量集中的旋转机械阶次n；
获取所述增程器在各个工况下的转速reng；
根据频率函数计算增程器在各个工况下的转动频率Fn。
在一些实施例中，所述基于所述各个工况下的转动频率通过第二声压级函数计算增程器在各个工况下的声压级，包括：
根据所述各个工况下的转动频率Fn确定对应的声压Pfiltered；
通过所述第二声压级函数计算增程器在所述各个工况下的声压级SPLeng，其中Pref为表示参考声压，为常数值。
基于同一个发明构思，本公开实施例的第二方面提供了一种增程器控制装置，包括：
数据获取模块，被配置为获取环境噪声的声压级，并获取车辆在行驶过程中的实时拟合声品质限值；
声压级裕量确定模块，被配置为基于所述环境噪声的声压级和所述实时拟合声品质限值进行处理得到声压级裕量，并从预先建立的增程器工况数据库中确定声压级小于或等于所述声压级裕量的对应工况，将所述对应工况作为增程器的矫正目标工况；
修正声压级确定模块，被配置为根据所述环境噪声的声压级和所述预先建立的增程器工况数据库中的增程器在各个工况下的声压级通过修正声压函数进行修正，得到修正声压级；
增程器工况比较调整模块，被配置为将所述增程器的矫正目标工况对应的实时拟合声 品质限值与所述修正声压级进行比较，根据比较结果对所述增程器的矫正目标工况进行调整。
基于同一个发明构思，本公开实施例的第三方面提供了一种电子设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述程序时实现第一方面任一实施例所述的方法。
基于同一个发明构思，本公开实施例的第四方面提供了一种车辆，包括第三方面任一实施例所述的电子设备。
基于同一个发明构思，本公开实施例的第五方面提供了一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令用于使计算机执行第一方面任一实施例所述方法。
基于同一个发明构思，本公开实施例的第六方面提供了一种计算机程序产品，包括计算机程序，所述计算机程序在被处理器执行时用于实现如本公开第一方面任一实施例所述的方法。
基于同一个发明构思，本公开实施例的第七方面提供了一种计算机程序，包括计算机程序代码，当所述计算机程序代码在计算机上运行时，以使得计算机执行如本公开第一方面任一实施例所述的方法。
从上面所述可以看出，本公开实施例提供的增程器控制方法及相关设备，从预先建立的增程器工况数据库中调取小于或等于声压级裕量的对应工况，以实现车辆个性化控制，避免车辆不一致性导致的控制偏差，然后将对应工况作为矫正目标工况，然后根据获取的环境噪声的声压级和预先建立的增程器工况数据库中的增程器在各个工况下的声压级进行修正，就能得到修正声压级，最后将矫正目标工况对应的声压级与修正声压级进行比较，根据比较结果对增程器的矫正目标工况进行调整，从而实现增程器的在线控制，可以最大限度发挥车辆的经济性同时保持更好的舒适性。
附图说明
为了更清楚地说明本公开或相关技术中的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本公开实施例的增程器控制方法的流程图；
图2为本公开实施例的增程器控制装置的结构示意图；
图3为本公开实施例的电子设备的示意图。
具体实施方式
为了能够更清楚地理解本公开的上述目的、特征和优点，下面将对本公开的方案进行进一步描述。需要说明的是，在不冲突的情况下，本公开的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本公开，但本公开还可以采用其他不同于在此描述的方式来实施；显然，说明书中的实施例只是本公开的一部分实施例，而不是全部的实施例。
相关技术中采用的NVH(Noise、Vibration、Harshness，噪声、振动与声振粗糙度)方案大多为离线控制，然而车辆在行驶过程中，不同的环境因素如风速、路面都会导致环境噪声的不同，进而导致环境噪声和发动机噪声在座舱内融合的声压级产生变化，这使得预先在特定工况条件下定义好的舱内声压级限值不再有效，从而可能导致舱内声压级超出声压极限值而使得舒适性降低，此外，与声压级超出限值之间的差距过大则不能发挥发动机的高效率区域，限制了驾驶的舒适性和经济性的进一步提高。同时，同一款车型不同车辆由于车辆不一致性，例如由于安装出现偏差以及传播路径发生改变，导致存在相同工况的发动机会在不同车辆上产生不同噪声的控制偏差。
针对本公开实施例的方案中所用的专业术语进行解释如下：
增程器，一般指能够提供额外的电能，从而使电动汽车能够增加行驶里程的电动汽车零部件，传统意义上的增程器指发动机与发电机的组合。
声压，大气压受到声波扰动后产生的变化，即为大气压强的余压，相当于在大气压强上的叠加一个声波扰动引起的压强变化。
声压级，采用了按对数方式分级作为表示声音大小的常用单位，这就是声压级。
增程器MAP，发动机在各种工况下所需的点火控制曲线图，称为MAP图，通过一系列传感器，如增程器转速传感器、进气管真空度传感器(发动机负荷传感器)、节气门位置传感器、曲轴位置传感器等来判断增程器的工作状态，在MAP图上找出增程器在此工作状态下所需的点火提前角，按此要求进行点火。
四缸机，四缸发动机是由四个气缸组成的发动机，在其内部，四个相同的单缸排列在一个机体上共用一根曲轴输出动力，主要作用是将化学能转换为机械能。
旋转机械阶次，表示旋转部件每旋转一圈某时间发生的次数，是结构旋转部件因旋转造成的振动或/和噪声的响应，这个阶次响应与转速和转频之间有对应关系。确切地说阶次是转速或转频的倍数。
本公开的实施例提供一种增程器控制方法及其装置、电子设备、车辆、非暂态计算机 可读存储介质、计算机程序产品和计算机程序，可以对增程器进行在线控制，以最大限度发挥车辆的经济性同时保持更好的舒适性，并且能够避免车辆不一致性导致的控制偏差。
如图1所示，本实施例的方法包括步骤101至步骤104。
步骤101，获取环境噪声的声压级，并获取车辆在行驶过程中的实时拟合声品质限值。
在该步骤中，环境噪声的声压级根据环境噪声频谱进行获得的，此外，不同品牌的车辆有自己的实时拟合声品限值的标准，因此，实时拟合声品根据车辆实时运行速度按照自身品牌的实时拟合声品限值的标准计算得到的，为实现车辆个性化控制的基础，避免车辆不一致性导致的控制偏差。
步骤102，基于所述环境噪声的声压级和所述实时拟合声品质限值进行处理得到声压级裕量，并从预先建立的增程器工况数据库中确定声压级小于或等于所述声压级裕量的对应工况，将所述对应工况作为增程器的矫正目标工况。
在该步骤中，以声压级裕量为标准通过从预先建立的增程器工况数据库中进行查询，查找声压级小于或等于声压级裕量时对应的工况，将此工况作为矫正目标工况，以为后续进行工况点修正做准备。
步骤103，根据所述环境噪声的声压级和所述预先建立的增程器工况数据库中的增程器在各个工况下的声压级通过修正声压函数进行修正，得到修正声压级。
在该步骤中，由于实时拟合声品质限值是按照不同频率分量叠加的方式获得的，有偏大的可能性，当频率分量相同，相位相同，叠加后的声压级可能会超出声压级裕量，从而导致超出限值，降低NVH感受，因此需要根据环境噪声的声压级和预先建立的增程器工况数据库中的增程器在各个工况下的声压级通过修正声压函数进行修正，得到修正声压级。
步骤104，将所述增程器的矫正目标工况对应的实时拟合声品质限值与所述修正声压级进行比较，根据比较结果对所述增程器的矫正目标工况进行调整。
在该步骤中，将矫正目标工况对应的声压级与修正声压级进行比较，如果增程器的矫正目标工况对应的声压级小于或等于修正声压级，则控制增程器按照矫正目标工况运行；
如果增程器的矫正目标工况对应的声压级大于修正声压级，则在增程器的矫正目标工况的基础上按照预设的步长降低增程器功率，再进行修正处理，得到再修正声压级，再将得到的再修正声压级与实时拟合声品质限值进行比较，若比较结果依然为大于再修正声压级，则反复循环修正，直到小于或等于再修正声压级，将其对应的增程器的矫正目标工况作为最终目标工况，控制增程器根据最终目标工况运行，实现了增程器的在线控制，对增程器的运行调整会随着行车过程中的环境声音变化不断改变，保证行车过程中增程器的声音可以一直处于不会干扰用户的状态，可以最大限度发挥车辆的经济性同时保持更好的舒适性。
在一些实施例中，步骤101中，所述获取环境噪声的声压级，包括步骤A1至步骤A3。
步骤A1，获取车辆在行驶过程中的实时噪声数据，并基于所述实时噪声数据进行转换处理得到总噪声频谱。
步骤A2，确定车辆在行驶过程中增程器的当前工况，从所述预先建立的增程器工况数据库中确定所述当前工况对应的声压级，将所述当前工况对应的声压级作为当前声压级，并根据所述当前声压级得到当前噪声频谱。
步骤A3，将所述总噪声频谱与所述当前噪声频谱相减得到环境噪声频谱，并根据所述环境噪声频谱得到环境噪声的声压级。
在上述方案中，可以利用收声设备获得车辆在运行时的对应工况运行的实时噪声数据，这个实时噪声数据即包括了车辆运行时发出的噪声还包括了环境噪声。由于实时噪声数据是通过收声设备收集的时域数据(即实时噪声数据)，需要将该实时噪声数据进行快速傅里叶变换(FFT，fast Fourier transform)处理，将时域数据转换成频域数据，得到总噪声频谱。
获取增程器在当前行车时的各个参数数据作为当前工况，从预先构建的增程器工况数据库中查找该当前工况对应的声压级(单位DB分贝)，将当前工况对应的声压级作为当前声压级，再根据环境噪声频谱得到环境噪声的声压级。
由于总噪声频谱中含有增程器当前工况下的增程器的噪声频谱(即当前噪声频谱)和环境噪声频谱，因此需要在总噪声频谱中直接将当前工况下的增程器的噪声频谱减去即可获得环境噪声频谱，根据环境噪声频谱即可得到环境噪声的声压级。
在一些实施例中，步骤A2中，所述根据所述当前声压级得到当前噪声频谱，包括步骤A21至步骤A24。
步骤A21，对所述当前声压级进行信号转换，得到时域波形数据。
步骤A22，扩展所述时域波形数据至预设的数据处理窗口长度，并按照预设的初始化时延进行延时处理，形成参考时域声波。
步骤A23，利用最小均方算法在一个周期时间内利用二分查找法对所述参考时域声波进行处理，得到最佳拟合结果对应的目标时域声波。
步骤A24，对所述目标时域声波进行快速傅里叶变化处理得到所述当前噪声频谱。
在上述方案中，预设的数据处理窗口长度可以根据实际情况进行设定，具体数值可以更改。将对应的时域波形数据扩展至数据处理窗口长度，并按照预设的初始化时延进行延时处理，形成参考时域声波，这样保证得到的参考时域声波能够满足最小均方算法(LMS算法)的处理需求。
然后，根据对应增程器的气缸组成数量，例如，四缸机，以四个工作循环对应的一个周期时间内的参考时域声波，利用二分查找方法查找最佳拟合结果的时域声波，将该时域 声波作为目标时域声波，并进行快速傅里叶变化转换后得到当前噪声频谱。这样，得到的当前噪声频谱更加准确。
在一些实施例中，步骤A3中，所述根据所述环境噪声频谱得到环境噪声的声压级，包括步骤A31至步骤A32。
步骤A31，根据环境噪声频谱得到对应的声压Punfiltered。
步骤A32，基于第一声压函数计算环境噪声的声压级SPLamb，其中Pref为表示参考声压，为常数值。
在上述方案中，能够准确的获得环境噪声对应的声压级，该环境噪声对应的声压级的单位为DB(分贝)，其中，Pref＝2×10-5。
在一些实施例中，步骤101中，所述获取车辆在行驶过程中的实时拟合声品质限值，包括：
获取车辆在行驶过程中的实时行驶速度，根据所述实时行驶速度从所述预先建立的增程器工况数据库中确定对应的实时拟合声品质限值。
在上述方案中，预先建立的增程器工况数据库中包含各个行驶速度下对应的拟合声品质限值，不同品牌的车辆有自己的拟合声品质限值标准，例如，某车辆的拟合声品质限值标准为SPLLimit＝-2.68·10-4·VehSpd2+0.21·VehSpd+46.8，其中，VehSpd为行驶速度，获取车辆在行驶过程中的实时行驶速度，根据实时行驶速度从预先建立的增器数据库中确定对应行驶速度的拟合声品质限值作为实时拟合声品质限值，减少了数据存储的空间。
在一些实施例中，步骤102中，所述基于所述环境噪声的声压级和所述实时拟合声品质限值进行处理得到声压级裕量，包括：
通过声压裕量函数对所述环境噪声的声压级SPLamb和实时拟合声品质限值SPLLimit进行处理，得到声压级裕量SPLmarge。
在上述方案中，获取声压级裕量为了以此为标准通过从预先建立的增程器工况数据库中进行查询，查找声压级小于或等于声压级裕量时对应的工况，将此工况作为矫正目标工况，以为进行工况点修正做准备。
在一些实施例中，所述修正声压函数为修正融合声压函数；
步骤103，包括：
所述增程器为四缸机，按照旋转机械阶次为二阶通过所述修正融合声压函数对所述环境噪声的声压级SPLamb和所述预先建立的增程器工况数据库中的增程器在各个工况下的声压级SPLeng进行同相位叠加，得到修正声压级SPLsum，所述修正融合声压函数表示为：
其中，abs表示用于求数据绝对值的函数，Peng2表示增程器的旋转机械阶次为二阶时对应工况的声压，Peng2表示环境噪声对应的声压。
在上述方案中，对于四缸机的增程器，旋转机械阶次为二阶时分量所占能量最高，因此按照旋转机械阶次为二阶的分量进行同相位叠加，通过修正融合声压函数的方式实现此同相位叠加，对环境噪声的声压级别和预先建立的增程器工况数据库中的增程器在各个工况下的声压级进行同相位叠加，得到修正声压级。
在一些实施例中，步骤104，包括步骤1041至步骤1044。
步骤1041，响应于确定所述增程器的矫正目标工况对应的实时拟合声品质限值小于或等于所述修正声压级，控制所述增程器根据矫正目标工况运行。
步骤1042，响应于确定所述增程器的矫正目标工况对应的实时拟合声品质限值大于所述修正声压级，将增程器的矫正目标工况对应的增程器功率按照预设步长进行降低处理，得到经过降低功率增程器的矫正目标工况的实时拟合声品质限值。
步骤1043，根据所述环境噪声的声压级和所述经过降低功率的矫正目标工况的实时拟合声品质限值进行修正处理，得到再修正声压级，并将所述再修正声压级与所述经过降低功率增程器的矫正目标工况的实时拟合声品质限值进行比较，得到对比结果。
步骤1044，响应于确定所述对比结果为再修正声压级小于或等于所述经过降低功率增程器的矫正目标工况的实时拟合声品质限值，将所述经过降低功率增程器的矫正目标工况作为最终目标工况，以控制所述增程器根据所述最终目标工况运行。
在上述方案中，如果矫正目标工况对应的实时拟合声品质限值小于或等于修正声压级，控制增程器根据矫正目标工况运行。如果大于该修正声压级，证明这样会给用户的听觉带来不适，为了提高舒适度，同时满足行车需求，需要在矫正目标工况的基础上按照预设的步长降低增程器功率，再进行修正处理，得到再修正声压级，再将得到的再修正声压级与实时拟合声品质限值进行比较，若比较结果依然为大于再修正声压级，则反复循环修正，直到小于或等于再修正声压级，将其对应的矫正目标工况作为最终目标工况，并按照该矫 正目标工况对增程器的各项参数进行调整，并根据此运行，实现了增程器的在线控制，对增程器的运行调整会随着行车过程中的环境声音变化不断改变，保证行车过程中增程器的声音可以一直处于不会干扰用户的状态，可以最大限度发挥车辆的经济性同时保持更好的舒适性。
在一些实施例中，所述增程器工况数据库的建立过程包括：
在安静环境下，根据增程器MAP最优油耗线确定各个工况对应的频谱数据，获取增程器在各个工况下的噪声时域数据和增程器在各个工况下的转速，并获取车辆在不同行驶速度下对应的声压级限值，根据所述车辆在不同行驶速度下对应的声压级限值进行拟合处理，得到拟合声品质限值；
根据所述各个工况对应的频谱数据和所述增程器在各个工况下的转速通过频率函数计算增程器在各个工况下的转动频率；
基于所述各个工况下的转动频率通过第二声压级函数计算增程器在各个工况下的声压级；
将增程器在各个工况下的声压级和车辆在不同行驶速度下对应的拟合声品质限值进行整合作为增程器工况数据。
在上述方案中，增程器工况数据库的建立中的安静环境指的是除了车辆本身运行的声音之外没有其他声音的干扰，根据增程器MAP最优油耗线确定各个工况对应的频谱数据，每个工况点代指增程器的运行参数，获取增程器在各个工况下的转速，并利用车辆的收声设备记录各个工况下的噪声，通过示波器将信号转换为其噪声时域数据，还获取车辆在不同行驶速度下对应的声压级限值，根据车辆在不同行驶速度下对应的声压级限值按照车辆品牌自身的拟合声品质限值标准进行拟合处理，得到拟合声品质限值作为增程器工况数据库中的数据。
然后根据各个工况对应的频谱数据和增程器在各个工况下的转速通过频率函数计算增程器在各个工况下的转动频率，基于各个工况下的转动频率通过第二声压级函数计算增程器在各个工况下的声压级，例如，增程器为四缸机，其噪声能量集中在1、2、4、6、8阶次，通过频率函数能够计算各个阶次对应的转动频率，再根据转动频率确定对应的声压，其单位为pa(帕斯卡)，利用获取的声压经第二声压级函数计算出增程器在各个工况下的声压级，将该增程器在各个工况下的声压级再作为增程器工况数据库中的数据。
在一些实施例中，所述根据所述车辆在各个行驶速度下对应的声压级限值进行拟合处理，得到拟合声品质限值，包括：
根据车辆在各个行驶速度下对应的声压级限值得到拟合函数，通过所述拟合函数对车辆在行驶过程中的行驶速度进行拟合，得到拟合声品质限值。
在上述方案中，拟合函数表示不同品牌车辆自身的拟合声品质限值的标准，例如，某车辆的拟合声品质限值标准为：
SPLLimit＝-2.68·10-4·VehSpd2+0.21·VehSpd+46.8，其中，VehSpd为行驶速度，通过拟合函数的方式获取拟合声品质限值减少了数据存储的空间。
在一些实施例中，所述根据所述各个工况对应的频谱数据和所述增程器在各个工况下的转速通过频率函数计算增程器在各个工况下的转动频率，包括：
确定所述增程器在各个工况下噪声能量集中的旋转机械阶次n；
获取所述增程器在各个工况下的转速reng；
根据频率函数计算增程器在各个工况下的转动频率Fn。
在上述方案中，例如，增程器为四缸机，其噪声能量集中在1、2、4、6、8阶次，因此通过上述频率函数能够计算各个阶次对应的转动频率Fn。
在一些实施例中，所述基于所述各个工况下的转动频率通过第二声压级函数计算增程器在各个工况下的声压级，包括：
根据各个工况下的转动频率Fn确定对应的声压Pfiltered；
通过所述第二声压级函数计算增程器在所述各个工况下的声压级SPLeng，其中Pref为表示参考声压，为常数值。
在上述方案中，能够准确的获得增程器在各个工况下的声压级，该各个工况下的声压级的单位为DB(分贝)。方便后续直接根据工况自身的参数查找对应的声压级，无需再进行繁琐的计算过程。
需要说明的是，本公开实施例的方法可以由单个设备执行，例如一台计算机或服务器等。本实施例的方法也可以应用于分布式场景下，由多台设备相互配合来完成。在这种分布式场景的情况下，这多台设备中的一台设备可以只执行本公开实施例的方法中的某一个或多个步骤，这多台设备相互之间会进行交互以完成所述的方法。
需要说明的是，上述对本公开的一些实施例进行了描述。其它实施例在所附权利要求书的范围内。在一些情况下，在权利要求书中记载的动作或步骤可以按照不同于上述实施例中的顺序来执行并且仍然可以实现期望的结果。另外，在附图中描绘的过程不一定要求示出的特定顺序或者连续顺序才能实现期望的结果。在某些实施方式中，多任务处理和并行处理也是可以的或者可能是有利的。
基于同一发明构思，与上述任意实施例方法相对应的，本公开还提供了一种增程器控制装置。
参考图2，所述增程器控制装置，包括数据获取模块201、声压级裕量确定模块202、修正声压级确定模块203和增程器工况比较调整模块204。
数据获取模块201，被配置为获取环境噪声的声压级，并获取车辆在行驶过程中的实时拟合声品质限值。
声压级裕量确定模块202，被配置为基于所述环境噪声的声压级和所述实时拟合声品质限值进行处理得到声压级裕量，并从预先建立的增程器工况数据库中确定声压级小于或等于所述声压级裕量的对应工况，将所述对应工况作为增程器的矫正目标工况。
修正声压级确定模块203，被配置为根据所述环境噪声的声压级和所述预先建立的增程器工况数据库中的增程器在各个工况下的声压级通过修正声压函数进行修正，得到修正声压级。
增程器工况比较调整模块204，被配置为将所述增程器的矫正目标工况对应的实时拟合声品质限值与所述修正声压级进行比较，根据比较结果对所述增程器的矫正目标工况进行调整。
在一些实施例中，数据获取模块201，包括总噪声频谱获取单元、当前噪声频谱获取单元和环境噪声频谱获取单元。
总噪声频谱获取单元，被配置为获取车辆在行驶过程中的实时噪声数据，并基于所述实时噪声数据进行转换处理得到总噪声频谱；
当前噪声频谱获取单元，被配置为确定车辆在行驶过程中增程器的当前工况，从所述预先建立的增程器工况数据库中确定所述当前工况对应的声压级，将所述当前工况对应的声压级作为当前声压级，并根据所述当前声压级得到当前噪声频谱；
环境噪声频谱获取单元，被配置为将所述总噪声频谱与所述当前噪声频谱相减得到环境噪声频谱，并根据所述环境噪声频谱得到环境噪声的声压级。
在一些实施例中，当前噪声频谱获取单元，具体被配置为：
对所述当前声压级进行信号转换，得到时域波形数据；
扩展所述时域波形数据至预设的数据处理窗口长度，并按照预设的初始化时延进行延时处理，形成参考时域声波；
利用最小均方算法在一个周期时间内利用二分查找法对所述参考时域声波进行处理，得到最佳拟合结果对应的目标时域声波；
对所述目标时域声波进行快速傅里叶变化处理得到所述当前噪声频谱。
在一些实施例中，环境噪声频谱获取单元，具体被配置为：
根据环境噪声频谱得到对应的声压Punfiltered；
基于第一声压函数计算环境噪声的声压级SPLamb，其中Pref为表示参考声压，为常数值。
在一些实施例中，数据获取模块201，还具体被配置为：
获取车辆在行驶过程中的实时行驶速度，根据所述实时行驶速度从所述预先建立的增程器工况数据库中确定对应的实时拟合声品质限值。
在一些实施例中，声压级裕量确定模块202，具体被配置为：
通过声压裕量函数对所述环境噪声的声压级SPLamb和实时拟合声品质限值SPLLimit进行处理，得到声压级裕量SPLmarge。
在一些实施例中，所述修正声压函数为修正融合声压函数；
修正声压级确定模块203，具体被配置为：
所述增程器为四缸机，按照旋转机械阶次为二阶通过所述修正融合声压函数对所述环境噪声的声压级SPLamb和所述预先建立的增程器工况数据库中的增程器在各个工况下的声压级SPLeng进行同相位叠加，得到修正声压级SPLsum，所述修正融合声压函数表示为：
其中，abs表示用于求数据绝对值的函数，Peng2表示增程器的旋转机械阶次为二阶时对应工况的声压，Peng2表示环境噪声对应的声压。
在一些实施例中，增程器工况比较调整模块204，具体被配置为：
响应于确定所述增程器的矫正目标工况对应的实时拟合声品质限值小于或等于所述修正声压级，控制所述增程器根据矫正目标工况运行；
响应于确定所述增程器的矫正目标工况对应的实时拟合声品质限值大于所述修正声压级，将增程器的矫正目标工况对应的增程器功率按照预设步长进行降低处理，得到经过降低功率增程器的矫正目标工况的实时拟合声品质限值；
根据所述环境噪声的声压级和所述经过降低功率的矫正目标工况的实时拟合声品质限值进行修正处理，得到再修正声压级，并将所述再修正声压级与所述经过降低功率增程器 的矫正目标工况的实时拟合声品质限值进行比较，得到对比结果；
响应于确定所述对比结果为再修正声压级小于或等于所述经过降低功率增程器的矫正目标工况的实时拟合声品质限值，将所述经过降低功率增程器的矫正目标工况作为最终目标工况，以控制所述增程器根据所述最终目标工况运行。
在一些实施例中，所述增程器控制装置还包括增程器工况数据库建立模块，包括拟合处理单元、转动频率获取单元、声压级获取单元和数据库整合单元。
拟合处理单元，被配置为在安静环境下，根据增程器MAP最优油耗线确定各个工况对应的频谱数据，获取增程器在各个工况下的噪声时域数据和增程器在各个工况下的转速，并获取车辆在不同行驶速度下对应的声压级限值，根据所述车辆在不同行驶速度下对应的声压级限值进行拟合处理，得到拟合声品质限值。
转动频率获取单元，被配置为根据所述各个工况对应的频谱数据和所述增程器在各个工况下的转速通过频率函数计算增程器在各个工况下的转动频率。
声压级获取单元，被配置为基于所述各个工况下的转动频率通过第二声压级函数计算增程器在各个工况下的声压级。
数据库整合单元，被配置为将增程器在各个工况下的声压级和车辆在不同行驶速度下对应的拟合声品质限值进行整合作为增程器工况数据。
在一些实施例中，拟合处理单元，具体被配置为：
根据车辆在各个行驶速度下对应的声压级限值得到拟合函数，通过所述拟合函数对车辆在行驶过程中的行驶速度进行拟合，得到拟合声品质限值。
在一些实施例中，转动频率获取单元，具体被配置为：
确定所述增程器在各个工况下噪声能量集中的旋转机械阶次n；
获取所述增程器在各个工况下的转速reng；
根据频率函数计算增程器在各个工况下的转动频率Fn。
在一些实施例中，声压级获取单元，具体被配置为：
根据各个工况下的转动频率Fn确定对应的声压Pfiltered；
通过所述第二声压级函数计算增程器在所述各个工况下的声压级SPLeng，其中Pref为表示参考声压，为常数值。
为了描述的方便，描述以上装置时以功能分为各种模块分别描述。当然，在实施本公开实施例时可以把各模块的功能在同一个或多个软件和/或硬件中实现。
上述实施例的装置用于实现前述任一实施例中相应的增程器控制方法，并且具有相应的方法实施例的有益效果，在此不再赘述。
基于同一发明构思，与上述任意实施例方法相对应的，本公开实施例还提供了一种电子设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现上任意一实施例所述的增程器控制方法。
图3示出了本实施例所提供的一种更为具体的电子设备硬件结构示意图，该设备可以包括：处理器301、存储器302、输入/输出接口303、通信接口304和总线305。其中处理器301、存储器302、输入/输出接口303和通信接口304通过总线305实现彼此之间在设备内部的通信连接。
处理器301可以采用通用的CPU(Central Processing Unit，中央处理器)、微处理器、应用专用集成电路(Application Specific Integrated Circuit，ASIC)、或者一个或多个集成电路等方式实现，用于执行相关程序，以实现本说明书实施例所提供的技术方案。
存储器302可以采用ROM(Read Only Memory，只读存储器)、RAM(Random Access Memory，随机存取存储器)、静态存储设备，动态存储设备等形式实现。存储器302可以存储操作系统和其他应用程序，在通过软件或者固件来实现本说明书实施例所提供的技术方案时，相关的程序代码保存在存储器302中，并由处理器301来调用执行。
输入/输出接口303用于连接输入/输出模块，以实现信息输入及输出。输入输出/模块可以作为组件配置在设备中(图中未示出)，也可以外接于设备以提供相应功能。其中输入设备可以包括键盘、鼠标、触摸屏、麦克风、各类传感器等，输出设备可以包括显示器、扬声器、振动器、指示灯等。
通信接口304用于连接通信模块(图中未示出)，以实现本设备与其他设备的通信交互。其中通信模块可以通过有线方式(例如USB、网线等)实现通信，也可以通过无线方式(例如移动网络、WIFI、蓝牙等)实现通信。
总线305包括一通路，在设备的各个组件(例如处理器301、存储器302、输入/输出接口303和通信接口304)之间传输信息。
需要说明的是，尽管上述设备仅示出了处理器301、存储器302、输入/输出接口303、通信接口304以及总线305，但是在具体实施过程中，该设备还可以包括实现正常运行所必需的其他组件。此外，本领域的技术人员可以理解的是，上述设备中也可以仅包含实现本说明书实施例方案所必需的组件，而不必包含图中所示的全部组件。
上述实施例的电子设备用于实现前述任一实施例中相应的增程器控制方法，并且具有相应的方法实施例的有益效果，在此不再赘述。
基于同一个发明构思，本实施例提出了一种车辆，包括上述实施例所述的电子设备。 具有与电子设备上执行的方法相同的技术效果，这里不再赘述。
基于同一发明构思，与上述任意实施例方法相对应的，本公开实施例还提供了一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令用于使所述计算机执行如上任一实施例所述的增程器控制方法。
本实施例的计算机可读介质包括永久性和非永久性、可移动和非可移动媒体可以由任何方法或技术来实现信息存储。信息可以是计算机可读指令、数据结构、程序的模块或其他数据。计算机的存储介质的例子包括，但不限于相变内存(PRAM)、静态随机存取存储器(SRAM)、动态随机存取存储器(DRAM)、其他类型的随机存取存储器(RAM)、只读存储器(ROM)、电可擦除可编程只读存储器(EEPROM)、快闪记忆体或其他内存技术、只读光盘只读存储器(CD-ROM)、数字多功能光盘(DVD)或其他光学存储、磁盒式磁带，磁带磁磁盘存储或其他磁性存储设备或任何其他非传输介质，可用于存储可以被计算设备访问的信息。
上述实施例的存储介质存储的计算机指令用于使所述计算机执行如上任一实施例所述的增程器控制方法，并且具有相应的方法实施例的有益效果，在此不再赘述。
基于同一个发明构思，为了实现上述实施例，本公开实施例还提出一种计算机程序产品，包括计算机程序，计算机程序在被处理器执行时实现如本公开任一实施例所述的增程器控制方法。
基于同一个发明构思，为了实现上述实施例，本公开实施例还提出一种计算机程序，该计算机程序包括计算机程序代码，当该计算机程序代码在计算机上运行时，使得计算机执行本公开任一实施例所述的增程器控制方法。
需要说明的是，前述对方法、装置实施例的解释说明也适用于上述实施例的电子设备、车辆、计算机可读存储介质、计算机程序产品和计算机程序，此处不再赘述。
所属领域的普通技术人员应当理解：以上任何实施例的讨论仅为示例性的，并非旨在暗示本公开的范围(包括权利要求)被限于这些例子；在本公开的思路下，以上实施例或者不同实施例中的技术特征之间也可以进行组合，步骤可以以任意顺序实现，并存在如上所述的本公开实施例的不同方面的许多其它变化，为了简明它们没有在细节中提供。
另外，为简化说明和讨论，并且为了不会使本公开实施例难以理解，在所提供的附图中可以示出或可以不示出与集成电路(IC)芯片和其它部件的公知的电源/接地连接。此外，可以以框图的形式示出装置，以便避免使本公开实施例难以理解，并且这也考虑了以下事实，即关于这些框图装置的实施方式的细节是高度取决于将要实施本公开实施例的平台的(即，这些细节应当完全处于本领域技术人员的理解范围内)。在阐述了具体细节(例如，电路)以描述本公开的示例性实施例的情况下，对本领域技术人员来说显而易见的是，可 以在没有这些具体细节的情况下或者这些具体细节有变化的情况下实施本公开实施例。因此，这些描述应被认为是说明性的而不是限制性的。
尽管已经结合了本公开的具体实施例对本公开进行了描述，但是根据前面的描述，这些实施例的很多替换、修改和变型对本领域普通技术人员来说将是显而易见的。例如，其它存储器架构(例如，动态RAM(DRAM))可以使用所讨论的实施例。
本公开实施例旨在涵盖落入所附权利要求的宽泛范围之内的所有这样的替换、修改和变型。因此，凡在本公开实施例的精神和原则之内，所做的任何省略、修改、等同替换、改进等，均应包含在本公开的保护范围之内。
需要说明的是，在本文中，诸如“第一”和“第二”等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
本公开所有实施例均可以单独被执行，也可以与其他实施例相结合被执行，均视为本公开要求的保护范围。

Claims (18)

  1. 一种增程器控制方法，其特征在于，包括：
    获取环境噪声的声压级，并获取车辆在行驶过程中的实时拟合声品质限值；
    基于所述环境噪声的声压级和所述实时拟合声品质限值进行处理得到声压级裕量，并从预先建立的增程器工况数据库中确定声压级小于或等于所述声压级裕量的对应工况，将所述对应工况作为增程器的矫正目标工况；
    根据所述环境噪声的声压级和所述预先建立的增程器工况数据库中的增程器在各个工况下的声压级通过修正声压函数进行修正，得到修正声压级；
    将所述增程器的矫正目标工况对应的实时拟合声品质限值与所述修正声压级进行比较，根据比较结果对所述增程器的矫正目标工况进行调整。
  2. 根据权利要求1所述的方法，其特征在于，所述获取环境噪声的声压级，包括：
    获取所述车辆在行驶过程中的实时噪声数据，并基于所述实时噪声数据进行转换处理得到总噪声频谱；
    确定所述车辆在行驶过程中所述增程器的当前工况，从所述预先建立的增程器工况数据库中确定所述当前工况对应的声压级，将所述当前工况对应的声压级作为当前声压级，并根据所述当前声压级得到当前噪声频谱；
    将所述总噪声频谱与所述当前噪声频谱相减得到环境噪声频谱，并根据所述环境噪声频谱得到所述环境噪声的声压级。
  3. 根据权利要求2所述的方法，其特征在于，所述根据所述当前声压级得到当前噪声频谱，包括：
    对所述当前声压级进行信号转换，得到时域波形数据；
    扩展所述时域波形数据至预设的数据处理窗口长度，并按照预设的初始化时延进行延时处理，形成参考时域声波；
    利用最小均方算法在一个周期时间内利用二分查找法对所述参考时域声波进行处理，得到最佳拟合结果对应的目标时域声波；
    对所述目标时域声波进行快速傅里叶变化处理得到所述当前噪声频谱。
  4. 根据权利要求2或3所述的方法，其特征在于，所述根据所述环境噪声频谱得到所述环境噪声的声压级，包括：
    根据环境噪声频谱得到对应的声压Punfiltered；
    基于第一声压函数计算环境噪声的声压级SPLamb，其中Pref为表示参考声压，为常数值。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述获取车辆在行驶过程中的实时拟合声品质限值，包括：
    获取所述车辆在行驶过程中的实时行驶速度，根据所述实时行驶速度从所述预先建立的增程器工况数据库中确定对应的实时拟合声品质限值。
  6. 根据权利要求4所述的方法，其特征在于，所述基于所述环境噪声的声压级和所述实时拟合声品质限值进行处理得到声压级裕量，包括：
    通过声压裕量函数对所述环境噪声的声压级SPLamb和实时拟合声品质限值SPLLimit进行处理，得到声压级裕量SPLmarge。
  7. 根据权利要求4或6所述的方法，其特征在于，所述修正声压函数为修正融合声压函数；
    所述根据所述环境噪声的声压级和所述预先建立的增程器工况数据库中的增程器在各个工况下的声压级进行修正，得到修正声压级，包括：
    所述增程器为四缸机，按照旋转机械阶次为二阶通过所述修正融合声压函数对所述环境噪声的声压级SPLamb和所述预先建立的增程器工况数据库中的增程器在各个工况下的声压级SPLeng进行同相位叠加，得到修正声压级SPLsum，所述修正融合声压函数表示为：
    其中，abs表示用于求数据绝对值的函数，Peng2表示增程器的旋转机械阶次为二阶时对应工况的声压，Peng2表示环境噪声对应的声压。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述将所述增程器的矫正目标工况对应的实时拟合声品质限值与所述修正声压级进行比较，根据比较结果对所述增程器的矫正目标工况进行调整，包括：
    响应于确定所述增程器的矫正目标工况对应的实时拟合声品质限值小于或等于所述修正声压级，控制所述增程器根据矫正目标工况运行；
    响应于确定所述增程器的矫正目标工况对应的实时拟合声品质限值大于所述修正声压级，将所述增程器的矫正目标工况对应的增程器功率按照预设步长进行降低处理，得到经过降低功率增程器的矫正目标工况的实时拟合声品质限值；
    根据所述环境噪声的声压级和所述经过降低功率增程器的矫正目标工况的实时拟合声品质限值进行修正处理，得到再修正声压级，并将所述再修正声压级与所述经过降低功率增程器的矫正目标工况的实时拟合声品质限值进行比较，得到对比结果；
    响应于确定所述对比结果为再修正声压级小于或等于所述经过降低功率增程器的矫正目标工况的实时拟合声品质限值，将所述经过降低功率增程器的矫正目标工况作为最终目标工况，以控制所述增程器根据所述最终目标工况运行。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述增程器工况数据库的建立过程包括：
    在安静环境下，根据增程器MAP最优油耗线确定各个工况对应的频谱数据，获取所述增程器在各个工况下的噪声时域数据和增程器在各个工况下的转速，并获取车辆在不同行驶速度下对应的声压级限值，根据所述车辆在不同行驶速度下对应的声压级限值进行拟合处理，得到拟合声品质限值；
    根据所述各个工况对应的频谱数据和所述增程器在各个工况下的转速通过频率函数计算所述增程器在各个工况下的转动频率；
    基于所述各个工况下的转动频率通过第二声压级函数计算增程器在各个工况下的声压级；
    将所述增程器在各个工况下的声压级和所述车辆在不同行驶速度下对应的所述拟合声品质限值进行整合作为增程器工况数据。
  10. 根据权利要求9所述的方法，其特征在于，所述根据所述车辆在各个行驶速度下对应的声压级限值进行拟合处理，得到拟合声品质限值，包括：
    根据所述车辆在各个行驶速度下对应的声压级限值得到拟合函数，通过所述拟合函数对所述车辆在行驶过程中的行驶速度进行拟合，得到所述拟合声品质限值。
  11. 根据权利要求9或10所述的方法，其特征在于，所述根据所述各个工况对应的频谱数据和所述增程器在各个工况下的转速通过频率函数计算增程器在各个工况下的转动频率，包括：
    确定所述增程器在各个工况下噪声能量集中的旋转机械阶次n；
    获取所述增程器在各个工况下的转速reng；
    根据频率函数计算增程器在各个工况下的转动频率Fn。
  12. 根据权利要求11所述的方法，其特征在于，所述基于所述各个工况下的转动频率通过第二声压级函数计算增程器在各个工况下的声压级，包括：
    根据所述各个工况下的转动频率Fn确定对应的声压Pfiltered；
    通过所述第二声压级函数计算增程器在所述各个工况下的声压级SPLeng，其中Pref为表示参考声压，为常数值。
  13. 一种增程器控制装置，其特征在于，包括：
    数据获取模块，被配置为获取环境噪声的声压级，并获取车辆在行驶过程中的实时拟合声品质限值；
    声压级裕量确定模块，被配置为基于所述环境噪声的声压级和所述实时拟合声品质限值进行处理得到声压级裕量，并从预先建立的增程器工况数据库中确定声压级小于或等于所述声压级裕量的对应工况，将所述对应工况作为增程器的矫正目标工况；
    修正声压级确定模块，被配置为根据所述环境噪声的声压级和所述预先建立的增程器工况数据库中的增程器在各个工况下的声压级通过修正声压函数进行修正，得到修正声压级；
    增程器工况比较调整模块，被配置为将所述增程器的矫正目标工况对应的实时拟合声品质限值与所述修正声压级进行比较，根据比较结果对所述增程器的矫正目标工况进行调整。
  14. 一种电子设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述程序时实现如权利要求1至12中任一项所述的方法。
  15. 一种车辆，其特征在于，包括权利要求14所述的电子设备。
  16. 一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储计算机指令，其特征在于，所述计算机指令用于使计算机执行权利要求1至12中任一项所述的方法。
  17. 一种计算机程序产品，包括计算机程序，所述计算机程序在被处理器执行时实现根据权利要求1至12中任一项所述的方法。
  18. 一种计算机程序，其特征在于，所述计算机程序包括计算机程序代码，当所述计算机程序代码在计算机上运行时，以使得计算机执行如权利要求1至12中任一项所述的方法。
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