Novel hybrid power and extended range intake and exhaust tuning method and device, vehicle and storage medium
By acquiring the engine operating curve under the vehicle's operating conditions and performing parameterization, an operating parameter software package is generated. The engine is controlled to simulate operating conditions when the vehicle is stationary, which solves the problem of reduced tuning accuracy caused by tire noise interference and achieves more accurate intake and exhaust tuning.
Patent Information
- Application Number
- CN202511781455.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-29
- Publication Date
- 2026-02-06
AI Technical Summary
In existing technologies, intake and exhaust tuning must be performed in a rotary drum noise reduction test chamber, which is greatly affected by tire noise, resulting in reduced tuning accuracy.
The engine operating curve under the vehicle's operating conditions is obtained, and parameterized processing is performed to generate an operating parameter software package. The software package is then used to control the engine under simulated operating conditions while the vehicle is stationary to conduct intake and exhaust sound tuning tests and optimize the engine's intake and exhaust system.
It avoids tire noise interference and improves the accuracy of intake and exhaust tuning.
Smart Images
Figure CN121475699A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of vehicle intake and exhaust tuning, and in particular to a new hybrid and extended range intake and exhaust tuning method, device, vehicle and storage medium. BACKGROUND
[0002] The hub tuning process is greatly affected by tire noise, and it is necessary to shield tire noise with sound-absorbing and sound-insulating materials. The test process is complex, and in related technologies, intake and exhaust tuning needs to be performed in a hub anechoic test chamber, which is greatly disturbed by tire noise, resulting in low tuning accuracy. SUMMARY
[0003] The present application provides a new hybrid and extended range intake and exhaust tuning method, device, vehicle and storage medium to solve the problems of related technologies, such as the need for intake and exhaust tuning in a hub anechoic test chamber, great disturbance by tire noise, and reduced tuning accuracy.
[0004] The first aspect of the present application provides a new hybrid and extended range intake and exhaust tuning method, comprising the following steps: obtaining an engine operating curve under a vehicle operating condition involved in intake and exhaust tuning; parameterizing the engine operating curve under the vehicle operating condition to obtain an engine operating parameter under the vehicle operating condition, and generating a running parameter software package under the vehicle operating condition according to the engine operating parameter; in a vehicle static state, controlling the engine to simulate running of the corresponding vehicle operating condition by using the running parameter software package, to perform intake and exhaust tuning test on the engine, and optimizing the intake and exhaust system of the engine according to the vibration and noise related to intake and exhaust tuning.
[0005] Optionally, the vehicle operating condition includes at least one of full throttle acceleration condition, half throttle acceleration condition, coasting condition, idle condition and stationary condition.
[0006] Optionally, the parameterization of the engine operating curve under the vehicle operating condition to obtain the engine operating parameter under the vehicle operating condition comprises: determining at least one fitting parameter of the engine according to the vehicle operating condition; fitting the engine operating curve based on the fitting parameter to obtain the engine operating parameter under the vehicle operating condition.
[0007] Optionally, before the engine is controlled to simulate running of the corresponding vehicle operating condition by using the running parameter software package, it further comprises: determining a target correction strategy of the test vehicle according to the vehicle operating condition; and correcting the running parameter of the test vehicle under the vehicle operating condition based on the target correction strategy.
[0008] Optionally, the target correction parameter includes at least one of a limit control strategy of shutting down the engine and a parameter optimization strategy of the power battery.
[0009] Optionally, before using the operating parameter software package to control the engine to simulate the corresponding vehicle operating conditions, the method further includes: arranging the sensors required for intake and exhaust sound tuning on the test vehicle and placing it in a noise-reducing environment.
[0010] A second aspect of this application provides a novel hybrid and range-extended intake and exhaust tuning device, comprising: an acquisition module for acquiring engine operating curves under vehicle operating conditions related to intake and exhaust tuning; a parameter processing module for parametric processing of the engine operating curves under vehicle operating conditions to obtain engine operating parameters under vehicle operating conditions, and generating an operating parameter software package under vehicle operating conditions based on the engine operating parameters; and an intake and exhaust tuning module for controlling the engine to simulate the corresponding vehicle operating conditions using the operating parameter software package when the vehicle is stationary, to conduct intake and exhaust tuning tests on the engine, and to optimize the engine's intake and exhaust system based on vibration and noise related to intake and exhaust tuning.
[0011] The third aspect of this application provides a vehicle that uses the novel hybrid and range-extended intake and exhaust tuning method described in the above embodiments for novel hybrid and range-extended intake and exhaust tuning.
[0012] The fourth aspect of this application provides a computer-readable storage medium having a computer program or instructions stored thereon, which, when executed, are used to implement the novel hybrid and range-extended intake and exhaust tuning method as described in the above embodiments.
[0013] The fifth aspect of this application provides a computer program product, including a computer program or instructions, which, when executed, implement the novel hybrid and range-extended intake and exhaust tuning method of the above embodiments.
[0014] Therefore, this application has at least the following beneficial effects: This application's embodiments can obtain engine operating curves under the vehicle's operating conditions involved in intake and exhaust tuning, parameterize the engine operating curves to obtain engine operating parameters under the corresponding vehicle operating conditions, and generate a corresponding operating parameter software package based on the engine operating parameters. With the vehicle stationary, the operating parameter software package is used to control the engine to simulate the corresponding vehicle operating conditions, thereby conducting intake and exhaust tuning tests on the engine. Furthermore, the engine's intake and exhaust systems are optimized based on the vibration and noise related to intake and exhaust tuning. By using the operating parameter software package to control the engine to simulate actual operating conditions while the vehicle is stationary, interference from tire noise is avoided, making the intake and exhaust tuning results more accurate. This solves the problems in related technologies where intake and exhaust tuning requires a rotary drum silencing test chamber, which is greatly affected by tire noise, leading to reduced tuning accuracy.
[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0016] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a flowchart of a novel hybrid and range-extended intake and exhaust tuning method provided in an embodiment of this application; Figure 2 This is a schematic diagram of the overall process of a novel hybrid and range-extended intake and exhaust tuning method provided in one embodiment of this application; Figure 3 This is a schematic diagram of the implementation process of a novel hybrid and range-extended intake and exhaust tuning system provided in one embodiment of this application; Figure 4 This is an example diagram of the novel hybrid and range-extended intake and exhaust tuning device provided in the embodiments of this application. Detailed Implementation
[0017] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.
[0018] The following description, with reference to the accompanying drawings, describes a novel hybrid and range-extended vehicle intake and exhaust tuning method, apparatus, vehicle, and storage medium according to embodiments of this application. Addressing the problem mentioned in the background art that intake and exhaust tuning requires a rotary drum noise reduction chamber, which is significantly affected by tire noise and reduces tuning accuracy, this application provides a novel hybrid and range-extended vehicle intake and exhaust tuning method. In this method, the engine operating curves under the vehicle's operating conditions involved in intake and exhaust tuning are obtained. The engine operating curves are parameterized to obtain engine operating parameters corresponding to the vehicle's operating conditions. A corresponding operating parameter software package is generated based on these parameters. While the vehicle is stationary, the operating parameter software package is used to control the engine to simulate the corresponding vehicle operating conditions, thereby conducting intake and exhaust tuning tests on the engine. The engine's intake and exhaust system is optimized based on the vibration and noise related to intake and exhaust tuning. By using the operating parameter software package to control the engine to simulate actual operating conditions while the vehicle is stationary, interference from tire noise is avoided, resulting in more accurate intake and exhaust tuning results. This solves the problems in related technologies, such as the need for intake and exhaust tuning to be carried out in a rotary drum noise reduction test chamber, which is greatly affected by tire noise and leads to reduced tuning accuracy.
[0019] Specifically, Figure 1This is a flowchart illustrating a novel hybrid and range-extended intake and exhaust tuning method provided in an embodiment of this application.
[0020] like Figure 1 As shown, this novel hybrid and range-extended intake and exhaust tuning method includes the following steps: In step S101, the engine operating curves under the vehicle operating conditions involved in intake and exhaust tuning are obtained.
[0021] Among them, intake and exhaust sound tuning refers to the vibration and noise testing and optimization of the engine intake and exhaust system to improve the exhaust sound quality; vehicle operating conditions refer to the typical operating conditions of the vehicle during actual driving for intake and exhaust sound tuning testing.
[0022] It is understood that the embodiments of this application can obtain the engine operating curve under the vehicle operating conditions involved in intake and exhaust tuning, which can truly restore the dynamic working state of the engine in actual driving, and provide a data basis for accurately reproducing the operating conditions in a stationary state and carrying out hub-free intake and exhaust tuning.
[0023] In some embodiments, the vehicle operating conditions include at least one of full-throttle acceleration, half-throttle acceleration, coasting, idling, and stationary conditions.
[0024] Among them, full throttle acceleration condition refers to the acceleration operation state when the accelerator pedal is fully depressed; half throttle acceleration condition refers to the acceleration operation state when the accelerator pedal is partially depressed; coasting condition refers to the state in which the vehicle decelerates by inertia when the accelerator pedal is released; idling condition refers to the state in which the engine maintains the lowest stable speed when the vehicle is stationary; and stationary condition refers to the state in which the engine runs stably at non-idling speed when the vehicle is stationary.
[0025] It is understood that the embodiments of this application can clearly define the vehicle operating conditions, including typical conditions such as full throttle acceleration, half throttle acceleration, coasting, idling, and stationary position. This can cover the key engine operating states required for intake and exhaust tuning, ensuring that the operating conditions reproduced in a stationary state are representative and complete, thereby improving the accuracy and engineering applicability of intake and exhaust tuning results.
[0026] In step S102, the engine operating curve under the vehicle operating conditions is parameterized to obtain the engine operating parameters under the vehicle operating conditions, and an operating parameter software package under the vehicle operating conditions is generated based on the engine operating parameters.
[0027] Among them, parameterization processing refers to fitting the engine operating curve with parameters such as speed, power, and speed rise rate to form a reproducible numerical expression; engine operating parameters refer to the numerical parameters obtained after parameterizing the engine operating curve under the vehicle operating conditions and used to represent the engine working state under the conditions; operating parameter software package refers to an independent control strategy made from the parameterized engine operating parameters for use in tuning under stationary conditions.
[0028] It is understood that the embodiments of this application can parameterize the engine operating curve and generate an operating parameter software package, which can transform the actual driving conditions into a storable and callable digital control strategy, providing a technical basis for accurately reproducing the dynamic operating state of the engine when the vehicle is stationary, thereby realizing intake and exhaust tuning tests without the need for a rotating hub.
[0029] Specifically, based on the actual operating parameters of the engine under various operating conditions of the vehicle, including engine speed, torque, ignition advance angle, and fuel injection quantity, a corresponding engine operating parameter software package is generated.
[0030] In some embodiments, the engine operating curve under vehicle operating conditions is parameterized to obtain engine operating parameters under vehicle operating conditions, including: determining at least one fitting parameter of the engine based on the vehicle operating conditions; fitting the engine operating curve based on the fitting parameter to obtain engine operating parameters under vehicle operating conditions.
[0031] Among them, fitting parameters refer to physical quantities used to fit the engine operating curve, such as engine speed, power, or speed increase rate.
[0032] It is understood that the embodiments of this application can determine the fitting parameters based on the vehicle's operating conditions and fit the engine operating curve based on the fitting parameters, thereby transforming the complex actual operating process into structured numerical parameters, making the engine operating state quantifiable and reproducible, and providing a reliable data foundation for the subsequent generation of operating parameter software packages and accurate simulation of real operating conditions in a static state.
[0033] In step S103, with the vehicle stationary, the engine is controlled by the operating parameter software package to simulate the corresponding vehicle operating conditions in order to conduct intake and exhaust sound tuning tests on the engine, and optimize the engine's intake and exhaust system based on the vibration and noise related to intake and exhaust sound tuning.
[0034] Vibration and noise refer to the intake and exhaust related vibrations and noises that are of interest in the intake and exhaust sound tuning test, including signals from the intake and exhaust pipe openings, the near field of the muffler, the suspension vibration, and the position of the human ear inside the vehicle; the intake and exhaust system refers to the system used to realize the intake and exhaust functions and affect the exhaust noise characteristics.
[0035] It is understood that the embodiments of this application can use the operating parameter software package to control the engine to simulate the vehicle's operating conditions when the vehicle is stationary, which can avoid tire noise interference, truly reproduce the engine's intake and exhaust noise characteristics, and thus effectively optimize the intake and exhaust system based on accurate vibration and noise data.
[0036] In some embodiments, before controlling the engine to simulate the corresponding vehicle operating conditions using the operating parameter software package, the method further includes: determining a target correction strategy for the test vehicle based on the vehicle operating conditions; and correcting the operating parameters of the test vehicle under the vehicle operating conditions based on the target correction strategy.
[0037] It is understood that, in the embodiments of this application, before using the operating parameter software package to control the simulated engine operating conditions, the target correction strategy of the test vehicle can be determined according to the vehicle operating conditions, and the vehicle's operating parameters can be corrected based on the strategy, so that the vehicle has the ability to perform the corresponding operating conditions when stationary, thereby ensuring the smooth conduct of intake and exhaust tuning tests.
[0038] Specifically, the target correction strategy is a vehicle operation parameter adjustment measure that supports the vehicle to simulate the vehicle's operating conditions when stationary, including the limiting control strategy of shutting down the engine and / or the parameter optimization strategy of the power battery.
[0039] In some embodiments, the target correction parameters include at least one of an engine shutdown limiting control strategy and a power battery parameter optimization strategy.
[0040] Specifically, the engine shutdown restriction control strategy refers to removing the limits on the engine's power and torque output when the vehicle is stationary, allowing the engine to operate under high-load conditions such as full-throttle acceleration and half-throttle acceleration; the power battery parameter optimization strategy refers to optimizing parameters such as the battery pack's temperature and SOC (State of Charge) to enable it to accept the current output by the engine when it is stationary.
[0041] It is understood that the embodiments of this application can enable the vehicle to meet the requirements of high load conditions for engine power, torque output and battery current acceptance when stationary by limiting control strategies that shut down the engine and / or optimizing power battery parameters. This ensures that the operating parameter software package can effectively drive the engine to reproduce the real vehicle operating conditions and ensures the feasibility and accuracy of intake and exhaust tuning tests.
[0042] In some embodiments, before controlling the engine to simulate the corresponding vehicle operating conditions using the operating parameter software package, the method further includes: arranging sensors required for intake and exhaust sound tuning on the test vehicle and placing them in a noise-reducing environment.
[0043] Among them, the anechoic environment refers to the test site with sufficiently low background noise, which is used to avoid external noise interference during intake and exhaust tuning tests.
[0044] It is understood that, in the embodiments of this application, before using the operating parameter software package to control the simulated engine operating conditions, sensors required for intake and exhaust sound tuning can be arranged and the vehicle can be placed in a noise-reducing environment. This can effectively isolate external noise interference, ensure that the collected vibration and noise data truly reflects the engine's intake and exhaust characteristics, and provide a reliable basis for the optimization of the intake and exhaust system.
[0045] Specifically, such as Figure 2 As shown, the overall process of the new hybrid and range-extended intake and exhaust tuning method includes: In step 201, the engine operating curves under the vehicle operating conditions involved in intake and exhaust tuning are parametrically processed. Based on fitting parameters such as engine speed, torque, and speed rise rate, the engine operating parameters under the vehicle operating conditions are obtained.
[0046] In step 202, an operating parameter software package corresponding to the vehicle's operating conditions is generated based on the engine operating parameters for use in intake and exhaust tuning under stationary conditions.
[0047] In step 203, when the vehicle is stationary, the limits on the engine's power and torque output are removed, and the battery pack's acceptance conditions are adjusted so that the engine can operate at different speeds and power levels when stationary.
[0048] In step 204, with the vehicle stationary, the engine is driven by software to operate under various conditions for intake and exhaust tuning, thus carrying out the intake and exhaust tuning work. This allows for intake and exhaust tuning tests to be conducted without rotating the hub or moving the vehicle.
[0049] Furthermore, based on the overall process of engine intake and exhaust tuning, the implementation process of engine intake and exhaust tuning further expands upon the engine intake and exhaust tuning method, such as... Figure 3 As shown, the main procedures for tuning engine intake and exhaust sounds include: In step 301, the test vehicle is first selected.
[0050] In step 302, the engine operating curves under the vehicle's operating conditions related to intake and exhaust tuning are obtained.
[0051] In step 303, the engine operating curve under the vehicle's operating conditions is parameterized to obtain the engine operating parameters under these conditions. These operating conditions include full-throttle acceleration, half-throttle acceleration, coasting, idling, and stationary driving. The parameterization process uses parameters such as engine speed, engine power, and engine speed increase rate to fit the engine operating curve. For example, Table 1 shows the engine operating parameter data for the full-throttle acceleration condition. As shown in Table 1, the parameterized data of the engine operating curve under the full-throttle acceleration condition includes: at low speeds, such as 800 r / min, the power is 5–10 kW, and the speed increase rate is 100 rpm / s; as the power increases to 30–50 kW, the speed increases to 1100–2100 r / min, and the speed increase rate increases to 300 rpm / s; in the high-power range, such as 60–110 kW, the speed reaches 2500–4500 r / min, and the speed increase rate further increases to 400 rpm / s. The rpm / s readings, with some ranges maintained at 300 rpm / s, fully reflect the relationship between engine speed, power, and dynamic response rate under full throttle acceleration conditions.
[0052] Table 1
[0053] In step 304, an operating parameter software package for the vehicle's operating conditions is generated based on the engine operating parameters.
[0054] In step 305, in order to enable the engine to run under conditions such as full throttle acceleration and half throttle acceleration while the vehicle is stationary, the vehicle control strategy needs to be appropriately modified. This includes disabling control strategies that restrict the engine to operate at different speeds and power levels, and removing the limits on the engine's power and torque output.
[0055] In step 306, when the engine is stationary and operating under full-throttle acceleration and half-throttle acceleration conditions, it is necessary to optimize parameters such as battery pack temperature and SOC so that the battery can accept the current output by the engine.
[0056] In step 307, sensors required for intake and exhaust sound tuning are installed, with measurement points including but not limited to: intake and exhaust pipe openings, near the muffler, suspension vibration, driver's inner ear, and rear seats.
[0057] In step 308, with the vehicle stationary and placed in a noise-reducing environment, based on the software package for different operating conditions in step 304 above, the engine is driven to run under conditions such as full throttle acceleration, half throttle acceleration, coasting, idling, and stationary position through software control strategies, and the vibration and noise related to intake and exhaust tuning are tested.
[0058] In step 309, vibration and noise tests of multiple intake and exhaust systems are conducted, the feasibility of each scheme is analyzed, and intake and exhaust tuning is completed.
[0059] The novel hybrid and range-extended intake and exhaust tuning method proposed in this application obtains the engine operating curves under the vehicle's operating conditions involved in intake and exhaust tuning. The engine operating curves are parameterized to obtain the corresponding engine operating parameters under the vehicle's operating conditions. A corresponding operating parameter software package is generated based on these parameters. With the vehicle stationary, the operating parameter software package is used to control the engine to simulate the corresponding vehicle operating conditions, thereby conducting intake and exhaust tuning tests. The engine's intake and exhaust system is optimized based on the vibration and noise related to intake and exhaust tuning. By using the operating parameter software package to control the engine under simulated actual operating conditions while the vehicle is stationary, the interference of tire noise is avoided, making the intake and exhaust tuning results more accurate. This solves the problems in related technologies where intake and exhaust tuning requires a rotary drum silencing test chamber, which is greatly affected by tire noise, leading to reduced tuning accuracy.
[0060] Next, referring to the accompanying drawings, a novel hybrid and range-extending intake and exhaust tuning device according to an embodiment of this application is described.
[0061] Figure 4 This is a block diagram of a novel hybrid and range-extended intake and exhaust tuning device according to an embodiment of this application.
[0062] like Figure 4 As shown, the novel hybrid and range-extended intake and exhaust tuning device 10 includes: an acquisition module 100, a parameter processing module 200, and an intake and exhaust tuning module 300.
[0063] The module 100 is used to acquire the engine operating curves under the vehicle operating conditions involved in intake and exhaust tuning; the parameter processing module 200 is used to parameterize the engine operating curves under the vehicle operating conditions to obtain the engine operating parameters under the vehicle operating conditions, and generate an operating parameter software package under the vehicle operating conditions based on the engine operating parameters; the intake and exhaust tuning module 300 is used to control the engine to simulate the corresponding vehicle operating conditions using the operating parameter software package when the vehicle is stationary, so as to conduct intake and exhaust tuning tests on the engine, and optimize the engine's intake and exhaust system based on the vibration and noise related to intake and exhaust tuning.
[0064] In some embodiments, the vehicle operating conditions include at least one of full-throttle acceleration, half-throttle acceleration, coasting, idling, and stationary conditions.
[0065] In some embodiments, the parameter processing module 200 is used to: determine at least one fitting parameter of the engine based on the vehicle operating conditions; and fit the engine operating curve based on the fitting parameter to obtain the engine operating parameters under the vehicle operating conditions.
[0066] In some embodiments of the present application, the novel hybrid and range-extended intake and exhaust tuning device 10 further includes a target correction module.
[0067] The target correction module determines the target correction strategy for the test vehicle based on the overall vehicle operating conditions; and corrects the operating parameters of the test vehicle under the overall vehicle operating conditions based on the target correction strategy.
[0068] In some embodiments, the target correction parameters include at least one of an engine shutdown limiting control strategy and a power battery parameter optimization strategy.
[0069] In some embodiments of this application, the novel hybrid and range-extended intake and exhaust tuning device 10 further includes a test preparation module.
[0070] The test preparation module involves placing sensors required for intake and exhaust tuning on the test vehicle in a noise-reducing environment.
[0071] It should be noted that the foregoing explanation of the embodiments of the novel hybrid and range-extended intake and exhaust tuning method also applies to the novel hybrid and range-extended intake and exhaust tuning device of this embodiment, and will not be repeated here.
[0072] The novel hybrid and range-extended intake and exhaust tuning device proposed in this application acquires the engine operating curves under the vehicle's operating conditions involved in intake and exhaust tuning. The engine operating curves are parameterized to obtain the corresponding engine operating parameters under the vehicle's operating conditions. A corresponding operating parameter software package is generated based on these parameters. With the vehicle stationary, the operating parameter software package is used to control the engine to simulate the corresponding vehicle operating conditions, thereby conducting intake and exhaust tuning tests. The intake and exhaust system of the engine is optimized based on the vibration and noise related to intake and exhaust tuning. By using the operating parameter software package to control the engine under simulated actual operating conditions while the vehicle is stationary, the interference of tire noise is avoided, making the intake and exhaust tuning results more accurate. This solves the problems in related technologies where intake and exhaust tuning requires a rotary drum silencing test chamber, which is greatly affected by tire noise, leading to reduced tuning accuracy.
[0073] This application provides a vehicle that uses the novel hybrid and range-extended intake and exhaust tuning method described in the above embodiments for novel hybrid and range-extended intake and exhaust tuning.
[0074] This application provides a computer-readable storage medium storing a computer program or instructions thereon. When the computer program or instructions are executed, they implement the novel hybrid and range-extended intake and exhaust tuning method as described in the above embodiments.
[0075] This application also provides a computer program product, including a computer program or instructions, which, when executed, implement the novel hybrid and range-extended intake and exhaust tuning method as described in the above embodiments.
[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0078] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.
[0079] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any of the following techniques known in the art, or a combination thereof: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (FPGAs), field-programmable gate arrays (FPGAs), etc.
[0080] Those skilled in the art will understand that all or part of the steps of the methods implementing the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
[0081] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A novel method for tuning the intake and exhaust systems of hybrid and range-extended electric vehicles, characterized in that, Includes the following steps: Obtain the engine operating curves under the vehicle's operating conditions involved in intake and exhaust tuning; The engine operating curve under the vehicle operating conditions is parameterized to obtain the engine operating parameters under the vehicle operating conditions, and an operating parameter software package under the vehicle operating conditions is generated based on the engine operating parameters. When the vehicle is stationary, the engine is controlled by the operating parameter software package to simulate the corresponding vehicle operating conditions in order to conduct intake and exhaust sound tuning tests on the engine, and optimize the engine's intake and exhaust system based on the vibration and noise related to intake and exhaust sound tuning.
2. The novel hybrid and range-extended intake and exhaust tuning method according to claim 1, characterized in that, The vehicle operating conditions include at least one of the following: full throttle acceleration, half throttle acceleration, coasting, idling, and stationary conditions.
3. The novel hybrid and range-extended intake and exhaust tuning method according to claim 1, characterized in that, The parameterization process of the engine operating curve under the vehicle operating conditions to obtain the engine operating parameters under the vehicle operating conditions includes: Determine at least one fitting parameter for the engine based on the vehicle's operating conditions; The engine operating curve is fitted based on the fitting parameters to obtain the engine operating parameters under the vehicle operating conditions.
4. The novel hybrid and range-extended intake and exhaust tuning method according to claim 1, characterized in that, Before using the operating parameter software package to control the engine to simulate the corresponding vehicle operating conditions, the following steps are also included: Determine the target correction strategy for the test vehicle based on the overall vehicle operating conditions. The operating parameters of the test vehicle under the whole vehicle operating conditions are corrected based on the target correction strategy.
5. The novel hybrid and range-extended intake and exhaust tuning method according to claim 4, characterized in that, The target correction parameters include at least one of the engine shutdown limiting control strategy and the power battery parameter optimization strategy.
6. The novel hybrid and range-extended intake and exhaust tuning method according to claim 1, characterized in that, Before using the operating parameter software package to control the engine to simulate the corresponding vehicle operating conditions, the following steps are also included: Sensors required for intake and exhaust sound tuning were installed on the test vehicle and placed in an anechoic environment.
7. A novel hybrid and range-extended intake and exhaust tuning device, characterized in that, include: The acquisition module is used to acquire the engine operating curves under the vehicle's operating conditions related to intake and exhaust tuning. The parameter processing module is used to perform parameterization processing on the engine operating curve under the vehicle operating conditions to obtain the engine operating parameters under the vehicle operating conditions, and generate the operating parameter software package under the vehicle operating conditions based on the engine operating parameters. The intake and exhaust tuning module is used to control the engine to simulate the corresponding vehicle operating conditions when the vehicle is stationary, using the operating parameter software package, in order to conduct intake and exhaust tuning tests on the engine and optimize the engine's intake and exhaust system based on the vibration and noise related to intake and exhaust tuning.
8. A vehicle, characterized in that, The vehicle employs the novel hybrid and range-extended intake and exhaust tuning method described in any one of claims 1-6 for novel hybrid and range-extended intake and exhaust tuning.
9. A computer-readable storage medium having a computer program or instructions stored thereon, characterized in that, When the computer program or instructions are executed, they implement the novel hybrid and range-extended intake and exhaust tuning method according to any one of claims 1-6.
10. A computer program product, comprising a computer program or instructions, characterized in that, When the computer program or instructions are executed, they implement the novel hybrid and range-extended intake and exhaust tuning method according to any one of claims 1-6.