WO2022089529A1 - Virtual engine speed control method, active sound production system, and automobile - Google Patents

Virtual engine speed control method, active sound production system, and automobile Download PDF

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Publication number
WO2022089529A1
WO2022089529A1 PCT/CN2021/127016 CN2021127016W WO2022089529A1 WO 2022089529 A1 WO2022089529 A1 WO 2022089529A1 CN 2021127016 W CN2021127016 W CN 2021127016W WO 2022089529 A1 WO2022089529 A1 WO 2022089529A1
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Prior art keywords
engine speed
virtual engine
vehicle speed
active sound
speed control
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PCT/CN2021/127016
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French (fr)
Chinese (zh)
Inventor
曹蕴涛
刘英杰
李允�
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中国第一汽车股份有限公司
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Publication of WO2022089529A1 publication Critical patent/WO2022089529A1/en

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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
    • B60W50/08—Interaction between the driver and the control system
    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
    • B60W40/105—Speed
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0638—Engine speed
    • 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed

Definitions

  • the present application relates to the technical field of virtual engine speed control of an active sound system, for example, to a virtual engine speed control method, an active sound system, and an automobile.
  • the virtual engine speed is often used as an intermediate variable between the speed of the electric vehicle (or the motor speed) and the sound frequency.
  • the virtual engine speed of the active sound system can be obtained from the change of the electric vehicle speed (or motor speed).
  • the frequency of the sound emitted by the active sound system can be obtained.
  • the control of the virtual engine speed of the active sound system determines the control method of the sound frequency change, which plays a crucial role in the sound perception brought by the active sound system.
  • Most of the active sound generation systems of electric vehicles adopt virtual engine speed change control modes such as single gear, switching gear, and CVT-like (Continuously Variable Transmission, continuously variable transmission) gears that simulate traditional internal combustion engine vehicle transmissions. Let the user experience the sound driving experience brought by different virtual engine speed control modes. Usually, three different control methods are required to realize the above three different virtual engine speed control strategies, resulting in an active sound virtual engine speed control program. It is complex and the development process is long.
  • the present application discloses a virtual engine speed control method, an active sound system and an automobile.
  • an embodiment of the present application provides a virtual engine speed control method, including:
  • adjusting the virtual engine speed has a linear relationship with the vehicle speed
  • the accelerator pedal opening is divided into multiple accelerator pedal opening intervals, and in different accelerator pedal opening intervals, the virtual engine speed at the shift point position and the accelerator pedal are adjusted.
  • the size of the opening is linear;
  • the vehicle speed is divided into multiple vehicle speed intervals, and the virtual engine speed is adjusted in a linear relationship with the vehicle speed in different vehicle speed intervals.
  • an embodiment of the present application provides an active sound production system, where the active sound production system is configured to adopt the virtual engine speed control method as described above.
  • an embodiment of the present application provides an automobile, and the automobile is configured to adopt the above-mentioned active sound production system.
  • an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, implements the above virtual engine speed control method.
  • Figure 1 is a schematic diagram of three different virtual engine speed control curves of an active sound system
  • FIG. 2 is a schematic diagram of vehicle speed interval division in a gear switching mode provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of a virtual engine speed and a vehicle speed change in a CVT-like gear change mode provided by an embodiment of the present application.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • the present embodiment discloses a virtual engine speed control method, which includes:
  • adjusting the virtual engine speed has a linear relationship with the vehicle speed
  • the accelerator pedal opening is divided into multiple accelerator pedal opening intervals, and the virtual engine speed and acceleration at the shift point position are adjusted in different accelerator pedal opening intervals.
  • the size of the pedal opening is linear;
  • the vehicle speed is divided into multiple vehicle speed intervals, and the virtual engine speed is adjusted in a linear relationship with the vehicle speed in different vehicle speed intervals.
  • the virtual engine speed control method in the embodiment of the present application uses vehicle speed and accelerator pedal opening as control parameters.
  • the active sound system simulates the virtual engine speed control of a single gear
  • the virtual engine speed has a linear relationship with the vehicle speed
  • the accelerator pedal opening is divided into multiple accelerator pedal opening intervals. In different accelerator pedal opening intervals, the virtual engine speed at the shift point is in the same magnitude as the accelerator pedal opening. Linear relationship; when the active sound system simulates CVT-like virtual engine speed control, the vehicle speed is divided into multiple speed ranges.
  • the virtual engine speed has a linear relationship with the vehicle speed; It is necessary to select a single gear, switch gears or CVT-like gears to control the virtual engine speed, and then control the sound of the active sound system, which can give driving a variety of experiences and enhance the driving experience.
  • vehicle speed and accelerator pedal opening are used as control parameters to implement the control strategy as a single gear, switching gear or CVT-like gear, which can simplify the virtual engine speed control program and shorten the development time.
  • the present embodiment discloses a virtual engine speed control method, which includes:
  • the active sound system of electric vehicles uses the speed control modes of traditional internal combustion engine vehicles such as single gear, switching gear and CVT-like gear to control the virtual engine speed.
  • the change rules of these three speed control methods are very large difference, as shown in Figure 1.
  • the vehicle speed and the accelerator pedal opening are used as the input parameters of the virtual engine speed control, both of which can be freely divided into the number of intervals and the upper and lower limits of the interval.
  • the 0-100% opening range must be covered.
  • the virtual engine speed has a linear relationship with the vehicle speed; the vehicle speed is divided into a vehicle speed interval, and within the vehicle speed interval, the virtual engine speed has a linear relationship with the vehicle speed.
  • the virtual engine speed and the vehicle speed always maintain a linear relationship, that is, the number of vehicle speed intervals is 1, and the vehicle speed range is 0. to the maximum speed; the number of accelerator pedal opening intervals is 1, and the accelerator pedal opening range is 0-100%. Therefore, the virtual engine speed r vitural and the vehicle speed v always maintain a linear change relationship equivalent to the fixed gear of a traditional internal combustion engine vehicle, and the expression between the two is as follows:
  • k and b are known constants, which can be set according to the changing requirements of the virtual engine speed.
  • the accelerator pedal opening is divided into multiple accelerator pedal opening intervals.
  • the size of the opening is linear.
  • the accelerator pedal opening degree is divided into 5 accelerator pedal opening degree intervals, which are (0, 20%), (20%, 40%], (40%, 60%], (60%, respectively. ,80%], (80%,100%], in different accelerator pedal opening ranges, set virtual engine speed control curves for different virtual engine speed shift points according to the opening degrees to reflect different accelerator pedal openings.
  • the drastic degree of the change of the virtual engine speed under the lower virtual engine speed, so that the virtual engine speed at the shift point position has a linear relationship with the accelerator pedal opening.
  • the relationship between the values P is as follows:
  • P represents the maximum value of the accelerator pedal opening interval
  • r switch represents the virtual engine speed at the shift point position
  • c and d are both known constants.
  • the active sound system adopts different virtual engine speed control curves to adjust the change relationship between the virtual engine speed and the vehicle speed, and different virtual engine speed control curves have different values. Virtual engine speed shift points.
  • the slope and intercept are known constants.
  • the virtual engine speed control of switching gears needs to go through 5 virtual gear switching processes such as 1 ⁇ 2, 2 ⁇ 3, 3 ⁇ 4, 4 ⁇ 5, 5 ⁇ 6, etc., then the whole process of switching gears It needs to go through 11 different virtual engine speed and vehicle speed relationships, so 11 vehicle speed intervals can be set to control the changes between the virtual engine speed and vehicle speed of different relationship expressions. Then, the relationship between the virtual engine speed and the vehicle speed in multiple accelerator pedal opening intervals is as follows:
  • the virtual engine speed r switch_20% of the shift point position corresponding to the pedal opening interval is calculated, and the 11 vehicle speed intervals are shown in FIG. 2 .
  • the vehicle speed and the virtual engine speed of the left dead center and the right dead center of each vehicle speed interval can be calculated. See Table 1 for details. shown.
  • Table 1 The virtual engine speed and vehicle speed of multiple vehicle speed intervals in the 0-20% accelerator pedal opening interval
  • the vehicle speed is divided into multiple vehicle speed intervals. In different vehicle speed intervals, the virtual engine speed has a linear relationship with the vehicle speed.
  • the size of the vehicle speed interval is 10km/h.
  • the virtual engine speed has nothing to do with the accelerator pedal opening, that is, the virtual engine speed is only related to the vehicle speed, and the vehicle speed interval is divided into multiple intervals.
  • the virtual engine speed There is a fixed linear relationship between the virtual engine speed and the vehicle speed.
  • the virtual engine speed corresponding to the maximum value of the previous vehicle speed interval is the same as the virtual engine speed corresponding to the minimum value of the following vehicle speed interval, so as to ensure that no virtual engine speed occurs during the transition between adjacent vehicle speed intervals.
  • the phenomenon of engine speed jumping, typical parameter settings are shown in Table 2. At this time, the number of accelerator pedal opening intervals is 1, and the accelerator pedal opening range is 0-100%.
  • the number of vehicle speed intervals and the upper and lower limits of vehicle speed can be freely set.
  • the set virtual engine speed and The linear relationship of the vehicle speed can be approximated to the speed change of the CVT-like gear, and the characteristics of the CVT speed change can be simulated, as shown in Figure 3.
  • Table 2 The relationship between virtual engine speed and vehicle speed under multiple vehicle speed ranges with CVT gear change
  • y represents the virtual engine speed
  • x represents the vehicle speed
  • j represents the vehicle speed interval
  • mj and lj represent the slope and intercept of the virtual engine speed and the vehicle speed calculation formula in the jth vehicle speed interval, respectively.
  • the virtual engine speed control method in the embodiment of the present application uses vehicle speed and accelerator pedal opening as control parameters.
  • the active sound system simulates the virtual engine speed control of a single gear
  • the virtual engine speed has a linear relationship with the vehicle speed
  • the accelerator pedal opening is divided into multiple accelerator pedal opening intervals. In different accelerator pedal opening intervals, the virtual engine speed at the shift point is in the same magnitude as the accelerator pedal opening. Linear relationship; when the active sound system simulates CVT-like virtual engine speed control, the vehicle speed is divided into multiple speed ranges.
  • the virtual engine speed has a linear relationship with the vehicle speed; It is necessary to select a single gear, switch gears or CVT-like gears to control the virtual engine speed, and then control the sound of the active sound system, which can give driving a variety of experiences and enhance the driving experience.
  • the vehicle speed and the accelerator pedal opening are used as control parameters to implement the control strategy as a single gear, a switching gear or a CVT-like gear, which can make the virtual engine speed control program simple and shorten the development time.
  • This embodiment also discloses an active sound generation system, which adopts the above-mentioned virtual engine speed control method.
  • the active sound generation system generates a synthetic sound corresponding to the virtual engine speed in real time according to the control of the virtual engine speed.
  • the active sound system uses the vehicle speed and the accelerator pedal opening as the input parameters of the virtual engine speed control, and presets the linear relationship between the order sound frequency of the active sound system and the virtual engine speed, and then the active sound system can be based on the virtual engine speed. Further determine the frequency of the sound output by the current system.
  • This embodiment also discloses an automobile, which adopts the above-mentioned active sound generation system.
  • This embodiment also provides a computer-readable storage medium storing a computer program, where the computer program is used to execute the above method.
  • the storage medium may be a non-transitory storage medium.
  • non-transitory computer-readable storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a RAM, or the like.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
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Abstract

A virtual engine speed control method, an active sound production system, and an automobile. The virtual engine speed control method comprises: using a vehicle speed and an accelerator pedal opening as control parameters for controlling a virtual engine speed; in response to the fact that an active sound production system simulates single gear control, adjusting the virtual engine speed to be in a linear relationship with the vehicle speed; in response to the fact that the active sound production system simulates gear shifting control, adjusting the virtual engine speed at a gear shifting point to be in a linear relationship with the size of the accelerator pedal opening; and in response to the fact that the active sound production system simulates CVT-like gear control, dividing the vehicle speed into multiple vehicle speed intervals, and adjusting, within different vehicle speed intervals, the virtual engine speed to be in a linear relationship with the vehicle speed.

Description

虚拟发动机转速控制方法、主动发声***及汽车Virtual engine speed control method, active sound system and automobile
本申请要求在2020年10月28日提交中国专利局、申请号为202011173564.7的中国专利申请的优先权，以上申请的全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application with application number 202011173564.7 filed with the China Patent Office on October 28, 2020, the entire contents of the above application are incorporated into this application by reference.
技术领域technical field
本申请涉及主动发声***的虚拟发动机转速控制技术领域，例如涉及一种虚拟发动机转速控制方法、主动发声***及汽车。The present application relates to the technical field of virtual engine speed control of an active sound system, for example, to a virtual engine speed control method, an active sound system, and an automobile.
背景技术Background technique
在电动汽车主动发声***声音控制过程中，经常采用虚拟发动机转速作为电动汽车车速(或者电机转速)和声音频率的中间变量。根据预先设定的虚拟发动机转速与电动汽车车速(或者电机转速)之间的关系，可以由电动汽车车速(或者电机转速)的变化，得到主动发声***虚拟发动机转速的大小，在此基础上，根据主动发声***中的虚拟发动机转速与频率之间的线性关系，即可得到主动发声***发出声音的频率。In the sound control process of the active sound system of an electric vehicle, the virtual engine speed is often used as an intermediate variable between the speed of the electric vehicle (or the motor speed) and the sound frequency. According to the relationship between the preset virtual engine speed and the electric vehicle speed (or motor speed), the virtual engine speed of the active sound system can be obtained from the change of the electric vehicle speed (or motor speed). According to the linear relationship between the virtual engine speed and the frequency in the active sound system, the frequency of the sound emitted by the active sound system can be obtained.
因此，主动发声***虚拟发动机转速的控制决定了声音频率变化控制方式，对主动发声***带来的声音感知起到至关重要的作用。电动汽车主动发声***大多采用模拟传统内燃机汽车变速器的单一挡位、切换挡位、类CVT(Continuously Variable Transmission，连续可变传动，即无级变速箱)挡位等虚拟发动机转速变化控制模式，为了让用户感受不同的虚拟发动机转速控制模式带来的声音驾驶体验，通常情况下需要采用三种不同的控制方法来分别实现上述三种不同的虚拟发动机转速控制策略，导致主动发声虚拟发动机转速控制程序复杂，开发过程较为漫长。Therefore, the control of the virtual engine speed of the active sound system determines the control method of the sound frequency change, which plays a crucial role in the sound perception brought by the active sound system. Most of the active sound generation systems of electric vehicles adopt virtual engine speed change control modes such as single gear, switching gear, and CVT-like (Continuously Variable Transmission, continuously variable transmission) gears that simulate traditional internal combustion engine vehicle transmissions. Let the user experience the sound driving experience brought by different virtual engine speed control modes. Usually, three different control methods are required to realize the above three different virtual engine speed control strategies, resulting in an active sound virtual engine speed control program. It is complex and the development process is long.
因此，亟需一种虚拟发动机转速控制方法、主动发声***及汽车，以应对上述状况。Therefore, there is an urgent need for a virtual engine speed control method, an active sound system and an automobile to cope with the above conditions.
发明内容SUMMARY OF THE INVENTION
本申请公开一种虚拟发动机转速控制方法、主动发声***及汽车。The present application discloses a virtual engine speed control method, an active sound system and an automobile.
第一方面，本申请实施例提供一种虚拟发动机转速控制方法，包括：In a first aspect, an embodiment of the present application provides a virtual engine speed control method, including:
以车速和加速踏板开度作为控制虚拟发动机转速的控制参数；Taking vehicle speed and accelerator pedal opening as control parameters to control the virtual engine speed;
响应于主动发声***模拟单一挡位虚拟发动机转速控制，调节虚拟发动机转速与车速呈线性关系；In response to the active sound system simulating single-gear virtual engine speed control, adjusting the virtual engine speed has a linear relationship with the vehicle speed;
响应于主动发声***模拟切换挡位虚拟发动机转速控制，将加速踏板开度划分多个加速踏板开度区间，在不同的加速踏板开度区间内，调节换挡点位置的虚拟发动机转速与加速踏板开度的大小呈线性关系；In response to the virtual engine speed control of the active sound system to simulate switching gears, the accelerator pedal opening is divided into multiple accelerator pedal opening intervals, and in different accelerator pedal opening intervals, the virtual engine speed at the shift point position and the accelerator pedal are adjusted. The size of the opening is linear;
响应于主动发声***模拟类CVT挡位虚拟发动机转速控制，将车速划分为多个车速区间，在不同的车速区间内，调节虚拟发动机转速与车速呈线性关系。In response to the virtual engine speed control of the CVT-like gear simulated by the active sound system, the vehicle speed is divided into multiple vehicle speed intervals, and the virtual engine speed is adjusted in a linear relationship with the vehicle speed in different vehicle speed intervals.
第二方面，本申请实施例提供一种主动发声***，所述主动发声***设置为采用了如上所述的虚拟发动机转速控制方法。In a second aspect, an embodiment of the present application provides an active sound production system, where the active sound production system is configured to adopt the virtual engine speed control method as described above.
第三方面，本申请实施例提供一种汽车，所述汽车设置为采用了如上所述的主动发声***。In a third aspect, an embodiment of the present application provides an automobile, and the automobile is configured to adopt the above-mentioned active sound production system.
第四方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现如上所述的虚拟发动机转速控制方法。In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, implements the above virtual engine speed control method.
附图说明Description of drawings
图1是主动发声***三种不同虚拟发动机转速控制曲线示意图；Figure 1 is a schematic diagram of three different virtual engine speed control curves of an active sound system;
图2是本申请实施例提供的切换挡位模式下车速区间划分示意图；FIG. 2 is a schematic diagram of vehicle speed interval division in a gear switching mode provided by an embodiment of the present application;
图3是本申请实施例提供的类CVT挡位变化模式下虚拟发动机转速与车速变化示意图。FIG. 3 is a schematic diagram of a virtual engine speed and a vehicle speed change in a CVT-like gear change mode provided by an embodiment of the present application.
具体实施方式Detailed ways
下面将结合本申请实施例中的附图，对本申请实施例进行描述。通常在此处附图中描述和示出的本申请实施例的组件可以以多种不同的配置来布置和设计。The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the drawings herein may be arranged and designed in many different configurations.
基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.
在本申请的描述中，需要说明的是，术语“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是该申请产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以 特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”等仅用于区分描述，而不能理解为指示或暗示相对重要性。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。In the description of this application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or The positional relationship is based on the orientation or positional relationship shown in the attached drawings, or the orientation or positional relationship that the product of the application is usually placed in use. It is only for the convenience of describing the application and simplifying the description, rather than indicating or implying the device referred to. Or elements must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present application. Furthermore, the terms "first", "second", "third", etc. are only used to differentiate the description and should not be construed as indicating or implying relative importance. In the description of this application, unless stated otherwise, "plurality" means two or more.
在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“设置”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接。对于本领域的普通技术人员而言，可以结合具体情况理解上述术语在本申请中的具体含义。In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "arrangement" and "connection" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or Integrally connected; either mechanical or electrical. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood in combination with specific situations.
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。In this application, unless otherwise expressly specified and defined, a first feature "on" or "under" a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
下面描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的。Embodiments of the present application are described below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to 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.
实施例一Example 1
本实施例公开了一种虚拟发动机转速控制方法，其包括：The present embodiment discloses a virtual engine speed control method, which includes:
以车速和加速踏板开度作为控制虚拟发动机转速的控制参数；Taking vehicle speed and accelerator pedal opening as control parameters to control the virtual engine speed;
响应于主动发声***模拟单一挡位虚拟发动机转速控制，调节虚拟发动机转速与车速呈线性关系；In response to the active sound system simulating single-gear virtual engine speed control, adjusting the virtual engine speed has a linear relationship with the vehicle speed;
响应于主动发声***模拟切换挡位虚拟发动机转速控制，将加速踏板开度划分为多个加速踏板开度区间，在不同的加速踏板开度区间内，调节换挡点位置的虚拟发动机转速与加速踏板开度的大小呈线性关系；In response to the virtual engine speed control of the active sound system to simulate switching gears, the accelerator pedal opening is divided into multiple accelerator pedal opening intervals, and the virtual engine speed and acceleration at the shift point position are adjusted in different accelerator pedal opening intervals. The size of the pedal opening is linear;
响应于主动发声***模拟类CVT挡位虚拟发动机转速控制，将车速划分为多个车速区间，在不同的车速区间内，调节虚拟发动机转速与车速呈线性关系。In response to the virtual engine speed control of the CVT-like gear simulated by the active sound system, the vehicle speed is divided into multiple vehicle speed intervals, and the virtual engine speed is adjusted in a linear relationship with the vehicle speed in different vehicle speed intervals.
本申请实施例中的虚拟发动机转速控制方法以车速和加速踏板开度为控制参数，当主动发声***模拟单一挡位虚拟发动机转速控制时，虚拟发动机转速与车速呈线性关系；当主动发声***模拟切换挡位虚拟发动机转速控制时，将加速踏板开度划分为多个加速踏板开度区间，在不同的加速踏板开度区间内，换挡点位置的虚拟发动机转速与加速踏板开度的大小呈线性关系；当主动发声 ***模拟类CVT挡位虚拟发动机转速控制时，将车速划分为多个车速区间，在不同的车速区间内，虚拟发动机转速与车速呈线性关系；驾驶员可以根据驾驶体验的需要选择单一挡位、切换挡位或类CVT挡位来控制虚拟发动机转速，进而控制主动发声***的发声，可以使驾驶具有多种体验，增强了驾驶体验感。本申请实施例中以车速和加速踏板开度为控制参数来实施作为单一挡位、切换挡位或类CVT挡位的控制策略，可以使虚拟发动机转速控制程序简单，缩短开发时长。The virtual engine speed control method in the embodiment of the present application uses vehicle speed and accelerator pedal opening as control parameters. When the active sound system simulates the virtual engine speed control of a single gear, the virtual engine speed has a linear relationship with the vehicle speed; When switching gear virtual engine speed control, the accelerator pedal opening is divided into multiple accelerator pedal opening intervals. In different accelerator pedal opening intervals, the virtual engine speed at the shift point is in the same magnitude as the accelerator pedal opening. Linear relationship; when the active sound system simulates CVT-like virtual engine speed control, the vehicle speed is divided into multiple speed ranges. In different speed ranges, the virtual engine speed has a linear relationship with the vehicle speed; It is necessary to select a single gear, switch gears or CVT-like gears to control the virtual engine speed, and then control the sound of the active sound system, which can give driving a variety of experiences and enhance the driving experience. In the embodiment of the present application, vehicle speed and accelerator pedal opening are used as control parameters to implement the control strategy as a single gear, switching gear or CVT-like gear, which can simplify the virtual engine speed control program and shorten the development time.
实施例二Embodiment 2
本实施例公开了一种虚拟发动机转速控制方法，其包括：The present embodiment discloses a virtual engine speed control method, which includes:
以车速和加速踏板开度作为控制虚拟发动机转速的控制参数；Taking vehicle speed and accelerator pedal opening as control parameters to control the virtual engine speed;
通常情况下，电动汽车主动发声***采用传统内燃机汽车的单一挡位、切换挡位和类CVT挡位等的转速控制模式进行虚拟发动机转速的控制，这三种转速控制方式的变化规律存在非常大的差异，如图1所示。为了能够在同一个控制逻辑下，通过主动发声***模拟上述三种转速控制方法，需要搭建一个适用于三种转速变化特征的控制框架。Under normal circumstances, the active sound system of electric vehicles uses the speed control modes of traditional internal combustion engine vehicles such as single gear, switching gear and CVT-like gear to control the virtual engine speed. The change rules of these three speed control methods are very large difference, as shown in Figure 1. In order to simulate the above three speed control methods through the active sound system under the same control logic, it is necessary to build a control framework suitable for the three speed change characteristics.
以车速和加速踏板开度作为虚拟发动机转速控制的输入参数，二者均可自由划分间隔数量和间隔区间上下限，其中，所有车速划分区间必须覆盖0至最高车速，所有加速踏板开度划分区间必须覆盖0-100％开度区间。The vehicle speed and the accelerator pedal opening are used as the input parameters of the virtual engine speed control, both of which can be freely divided into the number of intervals and the upper and lower limits of the interval. The 0-100% opening range must be covered.
当主动发声***模拟单一挡位虚拟发动机转速控制时，虚拟发动机转速与车速呈线性关系；车速划分为一个车速区间，在所述一个车速区间内，虚拟发动机转速与车速呈线性关系。When the active sound system simulates the virtual engine speed control of a single gear, the virtual engine speed has a linear relationship with the vehicle speed; the vehicle speed is divided into a vehicle speed interval, and within the vehicle speed interval, the virtual engine speed has a linear relationship with the vehicle speed.
当电动汽车主动发声***模拟单一挡位虚拟发动机转速控制时，在任意车速和加速踏板开度区间内，虚拟发动机转速与车速始终保持线性关系，也就是车速区间个数为1，车速范围为0至最高车速；加速踏板开度区间个数为1，加速踏板开度范围为0-100％。于是，虚拟发动机转速r vitural与车速v始终保持相当于传统内燃机汽车固定挡位的线性变化关系，二者之间的表达式如下所示： When the electric vehicle active sound system simulates the virtual engine speed control of a single gear, in any vehicle speed and accelerator pedal opening interval, the virtual engine speed and the vehicle speed always maintain a linear relationship, that is, the number of vehicle speed intervals is 1, and the vehicle speed range is 0. to the maximum speed; the number of accelerator pedal opening intervals is 1, and the accelerator pedal opening range is 0-100%. Therefore, the virtual engine speed r vitural and the vehicle speed v always maintain a linear change relationship equivalent to the fixed gear of a traditional internal combustion engine vehicle, and the expression between the two is as follows:
r vitural＝k×v+b r vitural = k×v+b
其中，k和b均为已知的常数，可根据虚拟发动机转速的变化需求进行设定。Among them, k and b are known constants, which can be set according to the changing requirements of the virtual engine speed.
当主动发声***模拟切换挡位虚拟发动机转速控制时，将加速踏板开度划分为多个加速踏板开度区间，在不同的加速踏板开度区间内，换挡点位置的虚拟发动机转速与加速踏板开度的大小呈线性关系。When the active sound system simulates switching gear virtual engine speed control, the accelerator pedal opening is divided into multiple accelerator pedal opening intervals. The size of the opening is linear.
例如，当电动汽车主动发声***模拟切换挡位虚拟发动机转速控制时，在不同的加速踏板开度区间，可以设定不同的虚拟发动机转速换挡控制曲线。在一实施例中，加速踏板开度划均匀分为5个加速踏板开度区间，分别为(0,20％]、(20％,40％]、(40％,60％]、(60％,80％]、(80％,100％]，在不同的加速踏板开度区间内，根据开度大小设置不同虚拟发动机转速换挡点的虚拟发动机转速控制曲线，以体现出不同加速踏板开度下虚拟发动机转速变化的剧烈程度，从而实现换挡点位置虚拟发动机转速与加速踏板开度的大小呈线性关系，换挡点位置虚拟发动机转速大小r switch与所处于的加速踏板开度区间的最大值P之间的关系如下： For example, when the electric vehicle active sound system simulates the virtual engine speed control of switching gears, different virtual engine speed shift control curves can be set in different accelerator pedal opening ranges. In one embodiment, the accelerator pedal opening degree is divided into 5 accelerator pedal opening degree intervals, which are (0, 20%), (20%, 40%], (40%, 60%], (60%, respectively. ,80%], (80%,100%], in different accelerator pedal opening ranges, set virtual engine speed control curves for different virtual engine speed shift points according to the opening degrees to reflect different accelerator pedal openings The drastic degree of the change of the virtual engine speed under the lower virtual engine speed, so that the virtual engine speed at the shift point position has a linear relationship with the accelerator pedal opening. The relationship between the values P is as follows:
r switch＝c×P+d r switch = c×P+d
其中，P代表加速踏板开度区间的最大值，r switch代表换挡点位置虚拟发动机转速，c和d均为已知的常数。 Among them, P represents the maximum value of the accelerator pedal opening interval, r switch represents the virtual engine speed at the shift point position, and c and d are both known constants.
在一实施例中，在不同加速踏板开度区间的情况下，主动发声***采用不同的虚拟发动机转速控制曲线调节虚拟发动机转速与车速之间的变化关系，不同的虚拟发动机转速控制曲线具有不同的虚拟发动机转速换挡点。In an embodiment, in the case of different accelerator pedal opening intervals, the active sound system adopts different virtual engine speed control curves to adjust the change relationship between the virtual engine speed and the vehicle speed, and different virtual engine speed control curves have different values. Virtual engine speed shift points.
在一实施例中，设定6个虚拟挡位，每个虚拟挡位虚拟发动机转速与车速之间的关系式为：r i＝a iν i+b i,其中i代表第i个虚拟挡位，r i代表第i个虚拟挡位的虚拟发动机转速，v i代表第i个虚拟挡位的车速，a i和b i分别表示第i个挡位虚拟发动机转速与车速之间关系式的斜率和截距，均为已知的常数。除此之外，切换挡位的虚拟发动机转速控制需要经历1→2、2→3、3→4、4→5、5→6等5个虚拟挡位切换过程，那么整个切换挡位的过程需要经过11个不同的虚拟发动机转速和车速关系，于是可以设定11个车速区间控制不同关系式的虚拟发动机转速与车速之间的变化。那么，多个加速踏板开度区间的虚拟发动机转速与车速之间的关系如下： In one embodiment, 6 virtual gears are set, and the relationship between the virtual engine speed of each virtual gear and the vehicle speed is: ri = a i ν i +b i , where i represents the ith virtual gear Bit, ri represents the virtual engine speed of the ith virtual gear, vi represents the vehicle speed of the ith virtual gear, ai and b i respectively represent the relationship between the virtual engine speed of the ith gear and the vehicle speed. The slope and intercept are known constants. In addition, the virtual engine speed control of switching gears needs to go through 5 virtual gear switching processes such as 1→2, 2→3, 3→4, 4→5, 5→6, etc., then the whole process of switching gears It needs to go through 11 different virtual engine speed and vehicle speed relationships, so 11 vehicle speed intervals can be set to control the changes between the virtual engine speed and vehicle speed of different relationship expressions. Then, the relationship between the virtual engine speed and the vehicle speed in multiple accelerator pedal opening intervals is as follows:
此处以加速踏板开度P∈(0,20％]时为例，进行切换挡位模式虚拟发动机转速和车速的参数设置，设置步骤如下所示：Here, take the accelerator pedal opening P∈(0,20%) as an example to set the parameters of virtual engine speed and vehicle speed for switching gear mode. The setting steps are as follows:
根据加速踏板开度区间最大值计算出该踏板开度区间对应的换挡点位置虚拟发动机转速r switch_20％，11个车速区间如图2所示。 According to the maximum value of the accelerator pedal opening interval, the virtual engine speed r switch_20% of the shift point position corresponding to the pedal opening interval is calculated, and the 11 vehicle speed intervals are shown in FIG. 2 .
根据每个挡位虚拟发动机转速与车速的线性关系以及换挡点位置虚拟发动机转速大小，可以计算出每个车速区间左止点、右止点的车速和虚拟发动机转速的大小，详见表1所示。According to the linear relationship between the virtual engine speed of each gear and the vehicle speed and the virtual engine speed of the shift point position, the vehicle speed and the virtual engine speed of the left dead center and the right dead center of each vehicle speed interval can be calculated. See Table 1 for details. shown.
表1 0-20％加速踏板开度区间下多个车速区间的虚拟发动机转速和车速Table 1 The virtual engine speed and vehicle speed of multiple vehicle speed intervals in the 0-20% accelerator pedal opening interval
Figure PCTCN2021127016-appb-000001
Figure PCTCN2021127016-appb-000001
当主动发声***模拟类CVT挡位虚拟发动机转速控制时，将车速划分为多个车速区间，在不同的车速区间内，虚拟发动机转速与车速呈线性关系。当主动发声***模拟类CVT挡位虚拟发动机转速控制时，车速区间的大小为10km/h。When the active sound system simulates the virtual engine speed control of CVT-like gears, the vehicle speed is divided into multiple vehicle speed intervals. In different vehicle speed intervals, the virtual engine speed has a linear relationship with the vehicle speed. When the active sound system simulates the virtual engine speed control of a CVT-like gear, the size of the vehicle speed interval is 10km/h.
例如，当电动汽车主动发声***模拟类CVT挡位虚拟发动机转速控制时，虚拟发动机转速与加速踏板开度大小无关，即虚拟发动机转速只与车速有关，将车速区间划分为多个间隔，每个车速间隔，虚拟发动机转速与车速存在固定的线性关系。相邻车速区间，前一车速区间的最大值对应的虚拟发动机转速与后一车速区间的最小值对应的虚拟发动机转速大小相同，以确保在相邻车速区间间隔过渡的过程中，不会出现虚拟发动机转速跳跃的现象，典型的参数设置如表2所示。此时，加速踏板开度区间个数为1，加速踏板开度范围为0-100％，同时可以自由设置车速区间个数和车速上下限，在每个车速区间，根据设置的虚拟发动机转速与车速的线性关系，从而能够逼近类CVT挡位的转速变化，模 拟CVT转速变化特性，如图3所示。For example, when the active sound system of an electric vehicle simulates the virtual engine speed control of a CVT-like gear, the virtual engine speed has nothing to do with the accelerator pedal opening, that is, the virtual engine speed is only related to the vehicle speed, and the vehicle speed interval is divided into multiple intervals. There is a fixed linear relationship between the virtual engine speed and the vehicle speed. In adjacent vehicle speed intervals, the virtual engine speed corresponding to the maximum value of the previous vehicle speed interval is the same as the virtual engine speed corresponding to the minimum value of the following vehicle speed interval, so as to ensure that no virtual engine speed occurs during the transition between adjacent vehicle speed intervals. The phenomenon of engine speed jumping, typical parameter settings are shown in Table 2. At this time, the number of accelerator pedal opening intervals is 1, and the accelerator pedal opening range is 0-100%. At the same time, the number of vehicle speed intervals and the upper and lower limits of vehicle speed can be freely set. In each vehicle speed interval, according to the set virtual engine speed and The linear relationship of the vehicle speed can be approximated to the speed change of the CVT-like gear, and the characteristics of the CVT speed change can be simulated, as shown in Figure 3.
表2 类CVT挡位变化多个车速区间下的虚拟发动机转速和车速关系Table 2 The relationship between virtual engine speed and vehicle speed under multiple vehicle speed ranges with CVT gear change
Figure PCTCN2021127016-appb-000002
Figure PCTCN2021127016-appb-000002
y表示虚拟发动机转速，x表示车速，j表示车速区间，mj和lj分别表示第j个车速区间虚拟发动机转速与车速计算公式的斜率和截距。y represents the virtual engine speed, x represents the vehicle speed, j represents the vehicle speed interval, mj and lj represent the slope and intercept of the virtual engine speed and the vehicle speed calculation formula in the jth vehicle speed interval, respectively.
本申请实施例中的虚拟发动机转速控制方法以车速和加速踏板开度为控制参数，当主动发声***模拟单一挡位虚拟发动机转速控制时，虚拟发动机转速与车速呈线性关系；当主动发声***模拟切换挡位虚拟发动机转速控制时，将加速踏板开度划分为多个加速踏板开度区间，在不同的加速踏板开度区间内，换挡点位置的虚拟发动机转速与加速踏板开度的大小呈线性关系；当主动发声***模拟类CVT挡位虚拟发动机转速控制时，将车速划分为多个车速区间，在不同的车速区间内，虚拟发动机转速与车速呈线性关系；驾驶员可以根据驾驶体验的需要选择单一挡位、切换挡位或类CVT挡位来控制虚拟发动机转速，进而控制主动发声***的发声，可以使驾驶具有多种体验，增强了驾驶体验感。本申请实施例中以车速和加速踏板开度为控制参数来实施作为单一挡位、切换 挡位或类CVT挡位的控制策略，可以使虚拟发动机转速控制程序简单，缩短开发时长。The virtual engine speed control method in the embodiment of the present application uses vehicle speed and accelerator pedal opening as control parameters. When the active sound system simulates the virtual engine speed control of a single gear, the virtual engine speed has a linear relationship with the vehicle speed; When switching gear virtual engine speed control, the accelerator pedal opening is divided into multiple accelerator pedal opening intervals. In different accelerator pedal opening intervals, the virtual engine speed at the shift point is in the same magnitude as the accelerator pedal opening. Linear relationship; when the active sound system simulates CVT-like virtual engine speed control, the vehicle speed is divided into multiple speed ranges. In different speed ranges, the virtual engine speed has a linear relationship with the vehicle speed; It is necessary to select a single gear, switch gears or CVT-like gears to control the virtual engine speed, and then control the sound of the active sound system, which can give driving a variety of experiences and enhance the driving experience. In the embodiment of the present application, the vehicle speed and the accelerator pedal opening are used as control parameters to implement the control strategy as a single gear, a switching gear or a CVT-like gear, which can make the virtual engine speed control program simple and shorten the development time.
本实施例还公开了一种主动发声***，其采用了上述的虚拟发动机转速控制方法。主动发声***依据虚拟发动机转速的控制实时产生与虚拟发动机转速相对应的合成声音。主动发声***采用车速和加速踏板开度作为虚拟发动机转速控制的输入参数，预先设定主动发声***阶次声音频率与虚拟发动机转速大小之间的线性关系，继而主动发声***能够根据虚拟发动机转速大小进一步确定当前***输出声音的频率大小。This embodiment also discloses an active sound generation system, which adopts the above-mentioned virtual engine speed control method. The active sound generation system generates a synthetic sound corresponding to the virtual engine speed in real time according to the control of the virtual engine speed. The active sound system uses the vehicle speed and the accelerator pedal opening as the input parameters of the virtual engine speed control, and presets the linear relationship between the order sound frequency of the active sound system and the virtual engine speed, and then the active sound system can be based on the virtual engine speed. Further determine the frequency of the sound output by the current system.
本实施例还公开了一种汽车，其采用了上述的主动发声***。This embodiment also discloses an automobile, which adopts the above-mentioned active sound generation system.
本实施例还提供一种计算机可读存储介质，存储有计算机程序，所述计算机程序用于执行上述方法。This embodiment also provides a computer-readable storage medium storing a computer program, where the computer program is used to execute the above method.
存储介质可以是非暂态(non-transitory)存储介质。The storage medium may be a non-transitory storage medium.
上述实施例方法中的全部或部分流程可以通过计算机程序来执行相关的硬件来完成的，该程序可存储于一个非暂态计算机可读存储介质中，该程序在执行时，可包括如上述方法的实施例的流程，其中，该非暂态计算机可读存储介质可以为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或RAM等。All or part of the processes in the methods of the above-mentioned embodiments can be completed by executing the relevant hardware through a computer program, and the program can be stored in a non-transitory computer-readable storage medium. , wherein the non-transitory computer-readable storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a RAM, or the like.
对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here.

Claims (11)

  1. 一种虚拟发动机转速控制方法，包括：A virtual engine speed control method, comprising:
    以车速和加速踏板开度作为控制虚拟发动机转速的控制参数；Taking vehicle speed and accelerator pedal opening as control parameters to control the virtual engine speed;
    响应于主动发声***模拟单一挡位虚拟发动机转速控制，调节虚拟发动机转速与车速呈线性关系；In response to the active sound system simulating single-gear virtual engine speed control, adjusting the virtual engine speed has a linear relationship with the vehicle speed;
    响应于主动发声***模拟切换挡位虚拟发动机转速控制，将加速踏板开度划分为多个加速踏板开度区间，在不同的加速踏板开度区间内，调节换挡点位置的虚拟发动机转速与加速踏板开度的大小呈线性关系；In response to the virtual engine speed control of the active sound system to simulate switching gears, the accelerator pedal opening is divided into multiple accelerator pedal opening intervals, and the virtual engine speed and acceleration at the shift point position are adjusted in different accelerator pedal opening intervals. The size of the pedal opening is linear;
    响应于主动发声***模拟类连续可变传动CVT挡位虚拟发动机转速控制，将车速划分为多个车速区间，在不同的车速区间内，调节虚拟发动机转速与车速呈线性关系。In response to the virtual engine speed control of the continuous variable transmission CVT gear position simulated by the active sound system, the vehicle speed is divided into multiple vehicle speed intervals, and the virtual engine speed is adjusted in a linear relationship with the vehicle speed in different vehicle speed intervals.
  2. 根据权利要求1所述的虚拟发动机转速控制方法，还包括：响应于主动发声***模拟单一挡位虚拟发动机转速控制，车速划分为一个车速区间，在所述一个车速区间内，调节虚拟发动机转速与车速呈线性关系。The virtual engine speed control method according to claim 1, further comprising: in response to the active sound system simulating the virtual engine speed control of a single gear, the vehicle speed is divided into a vehicle speed interval, and within the vehicle speed interval, adjusting the virtual engine speed and The speed of the vehicle is linear.
  3. 根据权利要求1所述的虚拟发动机转速控制方法，还包括：响应于主动发声***模拟切换挡位虚拟发动机转速控制，在不同的加速踏板开度区间内，根据加速踏板开度大小设置具有不同虚拟发动机转速换挡点的虚拟发动机转速控制曲线，得到换挡点位置虚拟发动机转速与加速踏板开度的大小呈线性关系。The virtual engine speed control method according to claim 1, further comprising: in response to the active sound system simulating switching gear virtual engine speed control, in different accelerator pedal opening intervals, setting different virtual engine speed according to the size of the accelerator pedal opening The virtual engine speed control curve of the engine speed shift point is obtained, and the virtual engine speed at the shift point position has a linear relationship with the accelerator pedal opening.
  4. 根据权利要求1或3所述的虚拟发动机转速控制方法，还包括：响应于主动发声***模拟切换挡位虚拟发动机转速控制，加速踏板开度均匀划分为5个加速踏板开度区间。The virtual engine speed control method according to claim 1 or 3, further comprising: in response to the virtual engine speed control of the active sound system simulating switching gears, the accelerator pedal opening is evenly divided into 5 accelerator pedal opening intervals.
  5. 根据权利要求4所述的虚拟发动机转速控制方法，还包括：响应于主动发声***模拟切换挡位虚拟发动机转速控制，设定6个虚拟档位。The virtual engine speed control method according to claim 4, further comprising: setting 6 virtual gears in response to the virtual engine speed control of switching gears simulated by the active sound system.
  6. 根据权利要求1所述的虚拟发动机转速控制方法，还包括：响应于主动发声***模拟类CVT挡位虚拟发动机转速控制，车速区间的大小设置为10km/h。The virtual engine speed control method according to claim 1, further comprising: in response to the active sound system simulating the virtual engine speed control of a CVT-like gear, the size of the vehicle speed interval is set to 10km/h.
  7. 根据权利要求6所述的虚拟发动机转速控制方法，还包括：响应于主动发声***模拟类CVT挡位虚拟发动机转速控制，相邻车速区间中的前一车速区间的最大值对应的虚拟发动机转速与所述相邻车速区间中的后一车速区间的最小值对应的虚拟发动机转速大小相同。The virtual engine speed control method according to claim 6, further comprising: in response to the active sound system simulating the virtual engine speed control of a CVT-like gear, the virtual engine speed corresponding to the maximum value of the previous vehicle speed interval in the adjacent vehicle speed interval is the same as The virtual engine rotational speed corresponding to the minimum value of the following vehicle speed interval in the adjacent vehicle speed intervals is the same.
  8. 一种主动发声***，所述主动发声***设置为采用了如权利要求1-7中任一项所述的虚拟发动机转速控制方法。An active sound production system, the active sound production system is configured to adopt the virtual engine speed control method according to any one of claims 1-7.
  9. 根据权利要求8所述的主动发声***，其中，所述主动发声***还设置为依据虚拟发动机转速的控制产生与虚拟发动机转速相对应的合成声音。The active sound system according to claim 8, wherein the active sound system is further configured to generate a synthetic sound corresponding to the virtual engine speed according to the control of the virtual engine speed.
  10. 一种汽车，所述汽车设置为采用了如权利要求8或9所述的主动发声***。An automobile provided with an active sound system as claimed in claim 8 or 9.
  11. 一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1-7中任一项所述的虚拟发动机转速控制方法。A computer-readable storage medium storing a computer program, when the computer program is executed by a processor, implements the virtual engine speed control method according to any one of claims 1-7.
PCT/CN2021/127016 2020-10-28 2021-10-28 Virtual engine speed control method, active sound production system, and automobile WO2022089529A1 (en)

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