Control method of vehicle and vehicle

Abstract

The application discloses a control method of a vehicle and the vehicle, and the control method comprises the following steps: when the vehicle is turned off, if the current mode of a sound system is a sports mode, the opening degree of an electronic tuning valve is controlled to be 100% and the electronic tuning valve enters a dormant state; when the vehicle is started, if the current mode of the sound system is the sports mode, the opening degree of the electronic tuning valve is kept as the opening degree corresponding to the situation that the vehicle is turned off and the mode is the sports mode, and the rotating speed of an engine is increased to a first rotating speed threshold; if the current gear is a traveling gear, the rotating speed of the engine is decreased to a second rotating speed threshold and the electronic tuning valve is controlled according to a preset rule, the second rotating speed threshold is smaller than the first rotating speed threshold; if the current gear is a stationary gear, the starting time of the vehicle is acquired; if the starting time is greater than a time threshold, the rotating speed of the engine is decreased to the second rotating speed threshold and the electronic tuning valve is controlled according to the preset rule. The sound wave effect when the vehicle is started in the sports mode is increased, and the experience of a user of a sports vehicle is improved.

Description

Technical Field

[0001] This invention belongs to the field of automotive technology, and specifically relates to a vehicle control method and a vehicle. Background Technology

[0002] As sporty passenger vehicles gain increasing market acceptance, traditional acoustic modes based on sound, vibration, and harshness (NVH) are gradually failing to meet customer requirements, and multi-mode exhaust systems with electronic tuning valves are increasingly being used in mass-produced vehicles.

[0003] However, the starting sound effect of vehicles using multi-mode exhaust systems with electronic tuning valves is currently not significant, failing to meet the needs of sporty vehicle users. For example, patent CN112622787A describes an electronic tuning valve control method. When the vehicle is powered on, the electronic tuning valve is controlled to move from 0% to 100% opening; when the vehicle is powered off, the electronic tuning valve opening is controlled to 100% and enters a dormant state. When the control strategy is a sport strategy, the vehicle's driving parameters are read, and the corresponding electronic tuning valve opening value is determined based on these parameters to control the electronic tuning valve. The aforementioned patent does not propose a control method to enhance the starting sound effect during vehicle startup and in a sport strategy, thus failing to meet the needs of sporty vehicle users and resulting in a poor user experience. Summary of the Invention

[0004] The purpose of this invention is to address the problem that the starting sound effect of vehicles using multi-mode exhaust systems with electronic tone valves is not obvious, failing to meet the needs of users of sporty vehicles. This invention provides a vehicle control method that can effectively increase the starting sound effect of sporty vehicles, thereby improving product performance and enhancing the user experience.

[0005] To address the aforementioned technical problems, this invention discloses a vehicle control method. The vehicle includes an engine and a sound system. The sound system includes an electronic tone control valve, and the sound system has modes including a quiet mode and a sport mode. The vehicle control method includes:

[0006] Collect the vehicle's current status parameters and determine the vehicle's operating condition based on these parameters;

[0007] If the vehicle is in a state of engine shutdown, the current mode of the sound system is obtained, and the state of the electronic tone control valve is controlled according to the current mode of the sound system; if the current mode of the sound system is sport mode, the opening degree of the electronic tone control valve is controlled to 100% and the system enters a sleep state.

[0008] If the vehicle is in the "vehicle started" state, the current mode of the sound system is obtained, and the state of the electronic tone control valve and the engine speed are controlled according to the current mode of the sound system; among which,

[0009] If the sound system is currently in Sport mode, the opening of the electronic tone control valve is maintained at the level corresponding to when the vehicle is off and the sound system is in Sport mode, and the engine speed is increased to a first speed threshold; the vehicle's current gear is obtained, and the electronic tone control valve and engine speed are controlled accordingly; wherein,

[0010] If the current gear is driving, the engine speed will be reduced to the second speed threshold and the electronic tuning valve will be controlled according to the preset rules. The second speed threshold is less than the first speed threshold.

[0011] If the current gear is stationary, the vehicle's start time is obtained; if the start time is greater than the time threshold, the engine speed is reduced to the second speed threshold and the electronic tuning valve is controlled according to preset rules.

[0012] Using the above technical solution, when the vehicle is off, if the current mode of the sound system is Sport mode, the opening of the electronic tone control valve is set to 100% and the vehicle enters a dormant state. When the vehicle is started, if the current mode of the sound system is Sport mode, the opening of the electronic tone control valve is maintained at 100%, the same opening as when the vehicle is off and the current mode of the sound system is Sport mode. The engine speed is increased to the first speed threshold. Only when the current gear is Drive or the vehicle start-up time exceeds the time threshold is the engine speed reduced to the second speed threshold and the electronic tone control valve is adjusted. This effectively enhances the sporty sound attributes (sound effect) when the vehicle starts in Sport mode, effectively improving product competitiveness and enhancing the experience of sporty vehicle users. In addition, when the vehicle is turned off, if the current mode of the sound system is Sport mode, the opening of the electronic tone control valve is controlled to 100% and enters a dormant state. This reduces the need for secondary adjustment of the electronic tone control valve opening when the vehicle is started, as the current mode of the sound system is Sport mode. This avoids potential problems with the acoustic experience caused by adjusting the electronic tone control valve due to the complex operating conditions when the vehicle is started.

[0013] According to another specific embodiment of the present invention, the vehicle control method disclosed in the embodiment of the present invention, if the vehicle is in the condition of vehicle startup and the current mode of the sound system is quiet mode, controls the electronic tuning valve according to a preset rule.

[0014] Using the above technical solution, if the sound system is currently in quiet mode after the vehicle is started, the electronic tone control valve can be controlled directly according to the preset rules, without increasing the engine speed or adding to the vehicle's motion sound attributes.

[0015] According to another specific embodiment of the present invention, the vehicle control method disclosed in the embodiment of the present invention controls the electronic tuning valve according to a preset rule, including: initializing the electronic tuning valve, obtaining the opening command of the electronic tuning valve, and controlling the opening of the electronic tuning valve according to the opening command.

[0016] By adopting the above technical solution, initializing the electronic tuning valve can ensure the accuracy of adjusting the opening of the electronic tuning valve after obtaining the opening command. The opening of the electronic tuning valve can be controlled according to the opening command to realize the sound wave adjustment function.

[0017] According to another specific embodiment of the present invention, the vehicle control method disclosed in the embodiment of the present invention initializes the electronic tuning valve by: controlling the opening degree of the electronic tuning valve to move from 0% to 100%, and calibrating the electronic tuning valve at the positions of 0% opening degree and 100% opening degree.

[0018] By adopting the above technical solution, calibrating the electronic tone control valve at the 0% and 100% opening positions can ensure the accuracy of adjusting the opening of the electronic tone control valve after obtaining the opening command.

[0019] According to another specific embodiment of the present invention, the vehicle control method disclosed in the embodiment of the present invention, if the vehicle is in a state of engine shutdown and the current mode of the sound system is quiet mode, controls the opening of the electronic tone control valve to 0% and enters a sleep state.

[0020] By adopting the above technical solution, when the vehicle is turned off and the sound system is currently in quiet mode, the opening of the electronic tone control valve is set to 0% and the system enters a dormant state. This reduces the adjustment of the electronic tone control valve when the sound system is in quiet mode after the vehicle is started, thus avoiding potential problems with the acoustic experience caused by adjusting the electronic tone control valve due to the complex operating conditions when the vehicle is started.

[0021] According to another specific embodiment of the present invention, the vehicle control method disclosed in the embodiment of the present invention has a first speed threshold of 1900 rpm.

[0022] Using the above technical solution, the first speed threshold of 1900 rpm is a relatively high speed, which can achieve a more dynamic sound effect.

[0023] According to another specific embodiment of the present invention, the vehicle control method disclosed in the embodiment of the present invention has a second speed threshold range of 800 rpm to 900 rpm.

[0024] Using the above technical solution, the range of the second speed threshold is 800rpm to 900rpm, which is the engine speed range corresponding to the idling state when the vehicle is started. This is equivalent to reducing the engine speed to the idling speed to ensure that the vehicle is restored to its normal starting state.

[0025] According to another specific embodiment of the present invention, the vehicle control method disclosed in the embodiment of the present invention, if the vehicle is in the condition of starting, the current mode of the sound system is sport mode, the current gear is stationary gear, and the starting time is less than or equal to a time threshold, then the opening degree of the electronic tone control valve is maintained at the opening degree corresponding to when the vehicle is off and the current mode of the sound system is sport mode, and the engine speed is maintained at a first speed threshold.

[0026] By adopting the above technical solution, it can be ensured that after the vehicle is started, the current mode of the sound system is sport mode, the current gear is stationary gear, and the starting sound effect is within the time threshold range.

[0027] According to another specific embodiment of the present invention, the vehicle control method disclosed in the embodiment of the present invention has a time threshold range of 25s to 45s.

[0028] The present invention also discloses a vehicle, including a control unit, an engine, and a sound system, the sound system including an electronic tone control valve; wherein the control unit is connected to the engine and the electronic tone control valve respectively, and is used to execute the above-described vehicle control method.

[0029] The beneficial effects of this invention are:

[0030] This invention provides a vehicle control method. When the vehicle is off, if the current mode of the sound system is Sport mode, the opening of the electronic tone control valve is set to 100% and the vehicle enters a dormant state. When the vehicle is started, if the current mode of the sound system is Sport mode, the opening of the electronic tone control valve is maintained at 100%, the opening corresponding to when the vehicle is off and the current mode of the sound system is Sport mode. The engine speed is increased to a first speed threshold. Then, if the current gear is Drive or the start-up time exceeds a time threshold, the engine speed is reduced to a second speed threshold, and the electronic tone control valve is adjusted. This effectively enhances the sporty sound attributes (sound effect) when the vehicle starts in Sport mode, effectively improving product competitiveness and enhancing the user experience of sporty vehicle models. In addition, when the vehicle is turned off, the sound system is currently in Sport mode, controlling the opening of the electronic tone control valve to 100% and entering a dormant state. This reduces the need for secondary adjustments to the electronic tone control valve opening when the vehicle is started, as the sound system is currently in Sport mode. This avoids potential issues with the acoustic experience caused by adjusting the electronic tone control valve due to the complex operating conditions during vehicle startup. Attached Figure Description

[0031] Figure 1 This is a schematic flowchart of the vehicle control method according to Embodiment 1 of the present invention;

[0032] Figure 2 This is a structural block diagram of the vehicle according to Embodiment 2 of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100: Control unit; 200: Engine; 300: Sound system; 310: Electronic tone control valve. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details will be included in the following description. The invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0036] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this embodiment, it should be noted that the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0038] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0039] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0040] Example 1

[0041] This invention discloses a vehicle control method that can effectively enhance the engine sound effect when a sporty vehicle starts, thereby improving product competitiveness and enhancing user experience. The vehicle includes an engine and an engine sound system, the sound system including an electronic tone control valve, and the sound system has two modes: a quiet mode and a sport mode.

[0042] It should be noted that users can select between the quiet mode and the sports mode of the sound system according to their actual needs. Specifically, the sound system may include mode selection buttons for selecting between quiet and sports modes. Each mode selection button is configured to generate a trigger signal indicating the activation of the corresponding quiet or sports mode when touched. Based on the obtained trigger signal for quiet or sports mode, the current mode of the sound system can be determined as quiet or sports mode.

[0043] Next, the vehicle control method provided by the present invention will be described in detail with reference to the accompanying drawings.

[0044] like Figure 1 As shown, the vehicle control methods include:

[0045] Collect the vehicle's current status parameters and determine the vehicle's operating condition based on these parameters.

[0046] It should be noted that the current status parameters of the vehicle can include the power mode and engine speed. If the power mode changes from off to on and the engine speed rises to idle, the vehicle is considered to be in the starting condition. If the power mode changes from on to off and the engine speed drops to zero, the vehicle is considered to be in the off condition.

[0047] If the vehicle is in a state of engine shutdown, the current mode of the sound system is obtained, and the state of the electronic tone control valve is controlled according to the current mode of the sound system; if the current mode of the sound system is sport mode, the opening degree of the electronic tone control valve is controlled to 100% and the system enters a sleep state.

[0048] If the vehicle is running, the current mode of the sound system is acquired, and the state of the electronic tone control valve and the engine speed are controlled according to the current mode. Specifically, if the current mode of the sound system is Sport mode, the opening of the electronic tone control valve is maintained at the level corresponding to when the vehicle is off and the current mode of the sound system is Sport mode, and the engine speed is increased to a first speed threshold. In one specific embodiment, the first speed threshold is 1900 rpm, at which point a more sporty sound effect can be achieved.

[0049] Then, the vehicle's current gear is obtained, and the electronic tuning valve and engine speed are controlled accordingly.

[0050] Specifically, if the current gear is a drive gear (i.e., D / S gear), the engine speed is reduced to a second speed threshold, and the electronic tuning valve is controlled according to a preset rule. The second speed threshold is less than the first speed threshold. If the current gear is a stationary gear (i.e., N / P gear), the vehicle's start time is obtained; if the start time is greater than a time threshold, the engine speed is reduced to a second speed threshold, and the electronic tuning valve is controlled according to a preset rule.

[0051] In one specific implementation, the range of the second speed threshold is 800 rpm to 900 rpm. The range of the second speed threshold of 800 rpm to 900 rpm is within the engine speed range corresponding to the idling state when the vehicle is started, which is equivalent to reducing the engine speed to the idling speed to ensure that the vehicle is restored to its normal starting state.

[0052] In one specific embodiment, the time threshold ranges from 25s to 45s. Specifically, the time threshold can be 25s, 30s, 35s, 40s, or 45s, or other times between 25s and 45s. This embodiment does not impose specific limitations on this, and those skilled in the art can set it according to different vehicle models.

[0053] Using the above technical solution, when the vehicle is off, if the current mode of the sound system is Sport mode, the opening of the electronic tone control valve is set to 100% and the vehicle enters a dormant state. When the vehicle is started, if the current mode of the sound system is Sport mode, the opening of the electronic tone control valve is set to 100%, the same opening as when the vehicle is off and the current mode of the sound system is Sport mode. The engine speed is then increased to a first speed threshold. Only if the current gear is Drive or the start-up time exceeds a time threshold is the engine speed reduced to a second speed threshold, and the electronic tone control valve is adjusted. This effectively enhances the sporty sound attributes (sound effect) when the vehicle starts in Sport mode, significantly improving product appeal and enhancing the experience for users of sporty vehicles.

[0054] Additionally, when the vehicle is turned off, if the sound system is in Sport mode, the opening of the electronic tone control valve is set to 100% and the system enters a dormant state. This reduces the need for secondary adjustments to the electronic tone control valve when the vehicle is started, as the sound system is currently in Sport mode. This avoids potential issues with the acoustic experience caused by adjusting the electronic tone control valve due to the complex operating conditions during vehicle startup.

[0055] In one specific implementation, if the vehicle is in the starting state and the sound system is currently in quiet mode, the electronic tuning valve is controlled according to preset rules.

[0056] Using the above technical solution, if the sound system is currently in quiet mode after the vehicle is started, the electronic tone control valve can be controlled directly according to the preset rules, without increasing the engine speed or adding to the vehicle's motion sound attributes.

[0057] In one specific implementation, controlling the electronic tuning valve according to preset rules includes: initializing the electronic tuning valve, obtaining the opening command of the electronic tuning valve, and controlling the opening of the electronic tuning valve according to the opening command.

[0058] It should be noted that the opening command of the electronic tone control valve generally needs to be determined based on the vehicle's driving parameters, which at least include engine speed and accelerator pedal opening.

[0059] By adopting the above technical solution, initializing the electronic tuning valve can ensure the accuracy of adjusting the opening of the electronic tuning valve after obtaining the opening command. The opening of the electronic tuning valve can be controlled according to the opening command to realize the sound wave adjustment function.

[0060] In one specific embodiment, initializing the electronic tone control valve includes: controlling the opening of the electronic tone control valve to move from 0% to 100%, and calibrating the electronic tone control valve at the 0% opening position and the 100% opening position.

[0061] It should be noted that after repeatedly controlling the opening of the electronic tone valve according to the opening command, the position of the electronic tone valve at 0% and 100% opening may change. Therefore, in order to improve the accuracy of opening adjustment, the electronic tone valve needs to be initialized before controlling the opening of the electronic tone valve according to the opening command.

[0062] By adopting the above technical solution, calibrating the electronic tone control valve at the 0% and 100% opening positions can ensure the accuracy of adjusting the opening of the electronic tone control valve after obtaining the opening command.

[0063] In one specific implementation, if the vehicle is in a state of engine shutdown and the sound system is currently in quiet mode, the opening of the electronic tuning valve is controlled to be 0% and the system enters a sleep state.

[0064] By adopting the above technical solution, when the vehicle is turned off and the sound system is currently in quiet mode, the opening of the electronic tone control valve is set to 0% and the system enters a dormant state. This reduces the adjustment of the electronic tone control valve when the sound system is in quiet mode after the vehicle is started, thus avoiding potential problems with the acoustic experience caused by adjusting the electronic tone control valve due to the complex operating conditions when the vehicle is started.

[0065] In one specific implementation, if the vehicle is in the starting condition, the current mode of the sound system is sport mode, the current gear is stationary, and the starting time is less than or equal to a time threshold, then the opening of the electronic tone control valve is maintained at the opening corresponding to the vehicle being in the off condition and the current mode of the sound system being sport mode, and the engine speed is maintained at a first speed threshold.

[0066] By adopting the above technical solution, it can be ensured that after the vehicle is started, the current mode of the sound system is sport mode, the current gear is stationary gear, and the starting sound effect is within the time threshold range.

[0067] Example 2

[0068] The present invention also discloses a vehicle, such as... Figure 2 As shown, the system includes a control unit 100, an engine 200, and a sound system 300, the sound system 300 including an electronic tone control valve 310; wherein, the control unit 100 is connected to the engine 200 and the electronic tone control valve 310 respectively, and is used to execute the vehicle control method in Embodiment 1.

[0069] It should be noted that, as Figure 2 As shown, the sound system 300 generally includes two electronic tone control valves 310, which are respectively connected to the control unit 100. The control unit 100 can be an engine control module (ECM).

[0070] In one specific embodiment, the control unit 100 can be connected to the electronic tone valve 310 via a LIN bus. The electronic tone valve 310 acts as a LIN bus slave node of the control unit and interacts with the control unit 100.

[0071] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. A method for controlling a vehicle, the vehicle comprising an engine and a sound system, the sound system comprising an electronic tone control valve, and the sound system comprising a quiet mode and a sport mode, characterized in that, The vehicle control method includes: Collect the current status parameters of the vehicle, and determine the vehicle's operating condition based on the current status parameters; If the vehicle is in a state where the engine is off, the current mode of the sound system is obtained, and the state of the electronic tone control valve is controlled according to the current mode of the sound system; wherein, If the current mode of the sound system is the motion mode, then the opening of the electronic tuning valve is controlled to 100% and the system enters a sleep state; If the vehicle is in the "vehicle started" state, the current mode of the sound system is obtained, and the state of the electronic tone control valve and the engine speed are controlled according to the current mode of the sound system; wherein, If the current mode of the sound system is sport mode, the opening of the electronic tuning valve is maintained at the opening corresponding to the condition when the vehicle is turned off and the current mode of the sound system is sport mode, and the engine speed is increased to a first speed threshold. The current gear position of the vehicle is obtained, and the electronic tuning valve and the engine speed are controlled according to the current gear position; wherein, If the current gear is a driving gear, the engine speed is reduced to a second speed threshold and the electronic tuning valve is controlled according to a preset rule, wherein the second speed threshold is less than the first speed threshold. If the current gear is stationary, the vehicle's start time is obtained; if the start time is greater than a time threshold, the engine speed is reduced to the second speed threshold and the electronic tuning valve is controlled according to the preset rules.

2. The vehicle control method as described in claim 1, characterized in that, If the vehicle is in the starting state and the current mode of the sound system is quiet mode, then the electronic tuning valve is controlled according to the preset rules.

3. The vehicle control method as described in claim 2, characterized in that, Controlling the electronic tuning valve according to the preset rules includes: initializing the electronic tuning valve, obtaining the opening command of the electronic tuning valve, and controlling the opening of the electronic tuning valve according to the opening command.

4. The vehicle control method as described in claim 3, characterized in that, Initializing the electronic tone control valve includes: controlling the opening of the electronic tone control valve to move from 0% to 100%, and calibrating the electronic tone control valve at the 0% opening position and the 100% opening position.

5. The vehicle control method according to any one of claims 1 to 4, characterized in that, If the vehicle is in a state where the engine is off and the sound system is currently in quiet mode, then the opening of the electronic tuning valve is controlled to 0% and the system enters a sleep state.

6. The vehicle control method according to any one of claims 1 to 4, characterized in that, The first speed threshold is 1900 rpm.

7. The vehicle control method according to any one of claims 1 to 4, characterized in that, The second speed threshold ranges from 800 rpm to 900 rpm.

8. The vehicle control method according to any one of claims 1 to 4, characterized in that, If the vehicle is in the condition of starting, the current mode of the sound system is the sport mode, the current gear is the stationary gear, and the starting time is less than or equal to the time threshold, then the opening of the electronic tone control valve is maintained at the opening corresponding to the condition of the vehicle being off and the current mode of the sound system being the sport mode, and the engine speed is maintained at the first speed threshold.

9. The vehicle control method as described in claim 8, characterized in that, The time threshold ranges from 25s to 45s.

10. A vehicle, characterized in that, It includes a control unit, an engine, and a sound system, the sound system including an electronic tone control valve; in The control unit is connected to the engine and the electronic tuning valve respectively, and is used to execute the vehicle control method as described in any one of claims 1 to 9.

Images