A method, apparatus, vehicle, and storage medium of controlling intake manifold pressure

Abstract

This invention discloses a method, apparatus, vehicle, and storage medium for controlling intake manifold pressure. The method includes: determining at least two different pressure threshold values ​​based on the current ambient pressure, wherein the pressure threshold values ​​are positively correlated with the current ambient pressure; determining a pressure regulation weight for the intake manifold based on the actual pressure of the vehicle's intake manifold and the at least two different pressure threshold values; determining a throttle protection opening for the vehicle based on the pressure regulation weight; and controlling the intake manifold pressure using the throttle protection opening. The technical solution of this invention reasonably adjusts the throttle opening of the vehicle through pressure regulation weights, thereby controlling the intake manifold pressure and preventing it from becoming too high or too low. By appropriately changing the throttle opening, the problem of poor intake manifold pressure control is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of engines, and in particular to a method and device for controlling intake manifold pressure, a vehicle and a storage medium. BACKGROUND

[0002] When the engine mainly uses a throttle to manage high-efficiency exhaust temperature, if the throttle opening is too large, it will cause the intake manifold pressure to be too low, resulting in the risk of oil leakage and increasing oil consumption. However, if the throttle opening is too small, it will be difficult to meet the engine thermal management requirements and the aftertreatment temperature requirements, and the engine emissions will be poor.

[0003] The existing pressure protection method is essentially an emergency shutdown or emergency closure of the flow channel when the pressure is too high. However, during engine operation, emergency shutdown is not possible, and if the throttle is directly opened to the maximum, although the intake manifold pressure will increase, the engine thermal management capability will also decrease, and suddenly opening the throttle to the maximum will cause the throttle opening to oscillate between full opening and the target value when the air-fuel ratio is closed-loop controlled, which is not conducive to achieving air-fuel ratio closed-loop control. SUMMARY

[0004] The present application provides a method and device for controlling intake manifold pressure, a vehicle and a storage medium to solve the problem of poor control effect of intake manifold pressure.

[0005] In a first aspect, the present application provides a method for controlling intake manifold pressure, comprising:

[0006] determining at least two different pressure threshold values according to the current ambient pressure, wherein the pressure threshold values are positively correlated with the current ambient pressure;

[0007] determining a pressure adjustment weight of the intake manifold of the vehicle according to the actual pressure of the intake manifold of the vehicle and the at least two different pressure threshold values;

[0008] determining a throttle protection opening of the vehicle according to the pressure adjustment weight, and controlling the intake manifold pressure using the throttle protection opening.

[0009] In a second aspect, the present application provides a device for controlling intake manifold pressure, comprising:

[0010] a threshold value determination module configured to determine at least two different pressure threshold values according to the current ambient pressure, wherein the pressure threshold values are positively correlated with the current ambient pressure;

[0011] a pressure weight determination module configured to determine a pressure adjustment weight of the intake manifold according to an actual pressure of the intake manifold of the vehicle and the at least two different pressure threshold values;

[0012] a pressure control module configured to determine a throttle protection opening of the vehicle according to the pressure adjustment weight and to control the intake manifold pressure by using the throttle protection opening.

[0013] In a third aspect, the present application provides a vehicle, comprising:

[0014] at least one processor;

[0015] and a memory in communication with the at least one processor;

[0016] wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to perform the method of controlling the intake manifold pressure according to the first aspect.

[0017] In a fourth aspect, the present application provides a computer readable storage medium storing computer instructions for causing a processor to perform the method of controlling the intake manifold pressure according to the first aspect when executed by the processor.

[0018] The present application provides a scheme for controlling the intake manifold pressure, at least two different pressure threshold values are determined according to a current ambient pressure, wherein the pressure threshold values are positively correlated with the current ambient pressure, a pressure adjustment weight of the intake manifold is determined according to an actual pressure of the intake manifold of the vehicle and the at least two different pressure threshold values, a throttle protection opening of the vehicle is determined according to the pressure adjustment weight, and the intake manifold pressure is controlled by using the throttle protection opening. By using the above technical scheme, the pressure adjustment weight of the intake manifold is determined according to the actual pressure of the intake manifold of the vehicle and a plurality of different pressure threshold values, the throttle opening of the vehicle is adjusted by the pressure adjustment weight, so as to control the intake manifold pressure, avoid the intake manifold pressure being too large or too small, and solve the problem of poor control effect of the intake manifold pressure by appropriately changing the throttle opening.

[0019] It should be understood that the content described in this part is not intended to identify key or important features of the present application, nor to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description only show some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0021] Figure 1 is a flow chart of a method for controlling intake manifold pressure according to an embodiment of the present application;

[0022] Figure 2 is a flow chart of a method for controlling intake manifold pressure according to an embodiment of the present application;

[0023] Figure 3 is a structural schematic diagram of a device for controlling intake manifold pressure according to an embodiment of the present application;

[0024] Figure 4 is a structural schematic diagram of a vehicle according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the technical personnel in the art better understand the present application, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort should be within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In the description of the present application, "a plurality of" means two or more, unless otherwise specified. The association relationship of "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents an "or" relationship between the associated objects. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to the process, method, product or device.

[0027] Embodiment one

[0028] Figure 1 A flow chart of a method for controlling intake manifold pressure is provided for embodiment one of the present application. The embodiment can be applicable to the case of controlling intake manifold pressure. The method can be executed by a device for controlling intake manifold pressure. The device for controlling intake manifold pressure can be realized in the form of hardware and / or software. The device for controlling intake manifold pressure can be configured in a vehicle. The vehicle can be composed of two or more physical entities or one physical entity.

[0029] As shown in Figure 1 , the method for controlling intake manifold pressure provided by embodiment one of the present application specifically includes the following steps:

[0030] S101. Determine at least two different pressure threshold values according to a current ambient pressure, wherein the pressure threshold values are positively correlated with the current ambient pressure.

[0031] In this embodiment, at least two different pressure threshold values can be set in advance. The pressure threshold values are dangerous critical values of the intake manifold pressure of the vehicle, such as upper limit values and lower limit values. When the actual pressure of the intake manifold approaches the pressure threshold values, it can be determined that the actual pressure is large or small. If the current ambient pressure is large, the pressure threshold values can be set large. If the current ambient pressure is small, the pressure threshold values can be set small.

[0032] S102. Determine a pressure regulation weight of the intake manifold of the vehicle according to the actual pressure of the intake manifold of the vehicle and the at least two different pressure threshold values.

[0033] In this embodiment, the ECU (Electronic Control Unit) of the vehicle can collect engine sensor signals, i.e. the actual pressure of the intake manifold. According to the actual pressure of the intake manifold and the at least two different pressure threshold values, the pressure regulation weight of the intake manifold can be determined. For example, when the actual pressure of the intake manifold is greater than the pressure threshold value, the pressure regulation weight can be determined as 1. When the actual pressure of the intake manifold is less than the pressure threshold value, the pressure regulation weight can be determined as 0.

[0034] S103. Determine a throttle protection opening of the vehicle according to the pressure regulation weight, and control the intake manifold pressure by using the throttle protection opening.

[0035] In the embodiment, the greater the pressure adjustment weight, the smaller the throttle protection opening of the vehicle can be determined, that is, the throttle is opened to a smaller position, the intake amount is correspondingly reduced, and the intake manifold pressure is correspondingly reduced. Conversely, the smaller the pressure adjustment weight, the greater the throttle protection opening of the vehicle can be determined, that is, the throttle is opened to a larger position, the intake amount is correspondingly increased, and the intake manifold pressure is correspondingly increased, thereby realizing control of the intake manifold pressure.

[0036] The method for controlling the intake manifold pressure provided by the embodiment of the application determines at least two different pressure threshold values according to a current environment pressure, wherein the pressure threshold values are positively correlated with the current environment pressure, determines a pressure adjustment weight of the intake manifold of the vehicle according to an actual pressure of the intake manifold of the vehicle and the at least two different pressure threshold values, determines a throttle protection opening of the vehicle according to the pressure adjustment weight, and controls the intake manifold pressure by using the throttle protection opening. The technical scheme of the embodiment of the application determines the pressure adjustment weight of the intake manifold according to the actual pressure of the intake manifold of the vehicle and a plurality of different pressure threshold values, adjusts the throttle opening of the vehicle by the pressure adjustment weight, thereby controlling the intake manifold pressure, avoiding that the intake manifold pressure is too large or too small, and solving the problem of poor control effect of the intake manifold pressure by appropriately changing the throttle opening.

[0037] Embodiment two

[0038] Figure 2 The flowchart of the method for controlling the intake manifold pressure provided by the embodiment two of the application, the technical scheme of the embodiment of the application is further optimized on the basis of the above-mentioned optional technical schemes, and a specific manner of controlling the intake manifold pressure is given.

[0039] Optionally, the determining of the pressure adjustment weight of the intake manifold according to the actual pressure of the intake manifold of the vehicle and the at least two different pressure threshold values comprises: if the actual pressure of the intake manifold of the vehicle is greater than or equal to a first pressure threshold value, determining the pressure adjustment weight of the intake manifold as a first value; and if the actual pressure of the intake manifold of the vehicle is less than or equal to a second pressure threshold value, determining the pressure adjustment weight of the intake manifold as a second value, wherein the first pressure threshold value is greater than the second pressure threshold value, and the first value is different from the second value. In this way, the advantages are that the dangerous pressure upper limit value (the first pressure threshold value) and the dangerous pressure lower limit value (the second pressure threshold value) are preset, and the pressure adjustment weight of the actual pressure of the intake manifold at the dangerous pressure upper limit value or the dangerous pressure lower limit value is determined, so that the throttle opening can be dynamically limited when the actual pressure of the intake manifold is greater than or equal to the dangerous pressure upper limit value or less than or equal to the dangerous pressure lower limit value.

[0040] Optionally, determining the pressure regulation weight of the intake manifold based on the actual pressure of the vehicle's intake manifold and the at least two different pressure thresholds includes: if the actual pressure of the vehicle's intake manifold is greater than the second pressure threshold and less than the first pressure threshold, then determining a first difference between the actual pressure and the second pressure threshold; determining a second difference between the first pressure threshold and the second pressure threshold; and determining the quotient of the first difference and the second difference as the pressure regulation weight of the intake manifold. The advantage of this configuration is that when the actual pressure of the intake manifold is greater than the second pressure threshold and less than the first pressure threshold, the pressure regulation weight corresponding to the actual pressure of the intake manifold between the upper and lower dangerous pressure limits can be accurately calculated by utilizing the first and second pressure thresholds.

[0041] Optionally, the first value is greater than the second value; wherein, determining the throttle protection opening of the vehicle based on the pressure regulation weight includes: when the pressure regulation weight is greater than the second value and less than the first value, determining a third difference between the first value and the pressure regulation weight, and determining a fourth difference between the first value and the second value; determining the quotient of the third difference and the fourth difference, and multiplying the quotient by the maximum opening of the throttle of the vehicle to determine the throttle protection opening of the vehicle. The advantage of this setting is that, by calculating the throttle protection opening in the above manner, the corresponding throttle protection opening can be reasonably determined as the opening value between the maximum and minimum throttle opening based on the magnitude of the pressure regulation weight, which is greater than the second value and less than the first value. By dynamically adjusting the throttle opening, when the intake manifold pressure is too low, the throttle can be appropriately opened instead of being fully opened, thus dynamically protecting the intake manifold pressure.

[0042] like Figure 2 As shown in Embodiment 2 of the present invention, a method for controlling intake manifold pressure specifically includes the following steps:

[0043] S201. Determine at least two different pressure threshold values ​​based on the current environmental pressure.

[0044] S202. Determine whether the actual pressure of the vehicle's intake manifold is greater than or equal to the first pressure threshold. If yes, proceed to step 203; otherwise, proceed to step 204.

[0045] S203. Determine the pressure regulation weight of the intake manifold as the first value and execute step 208.

[0046] For example, if the first value is 1, then when the actual pressure of the vehicle's intake manifold is greater than or equal to the first pressure threshold, the pressure regulation weight of the intake manifold can be determined to be 1.

[0047] S204. Determine whether the actual pressure in the vehicle's intake manifold is less than or equal to the second pressure threshold. If yes, proceed to step 205; otherwise, proceed to step 206.

[0048] S205. Determine the pressure regulation weight of the intake manifold as the second value, and execute step 207.

[0049] Wherein, the first pressure threshold value is greater than the second pressure threshold value, and the first value is different from the second value.

[0050] For example, if the second value is 0, then when the actual pressure of the vehicle's intake manifold is less than or equal to the second pressure threshold, the pressure regulation weight of the intake manifold can be determined to be 0.

[0051] S206. Determine the first difference between the actual pressure and the second pressure threshold, determine the second difference between the first pressure threshold and the second pressure threshold, and determine the quotient of the first difference and the second difference as the pressure regulation weight of the intake manifold, and execute step 209.

[0052] For example, if the first pressure threshold is P1, the second pressure threshold is P2, and the actual pressure is P, then when the actual pressure in the intake manifold is less than the first pressure threshold but greater than the second pressure threshold, the pressure regulation weight w can be calculated as: w = (P - P2) / (P1 - P2).

[0053] S207. The maximum opening of the throttle valve of the vehicle is determined as the throttle valve protection opening of the vehicle, and the intake manifold pressure is controlled using the throttle valve protection opening.

[0054] Specifically, when the pressure regulation weight is the second value, it indicates that the intake manifold pressure is low. At this time, the maximum opening of the vehicle's throttle needs to be set as the vehicle's throttle protection opening, and the vehicle's throttle needs to be fully opened to increase the intake air volume and improve the intake manifold pressure.

[0055] S208. The minimum opening of the throttle valve of the vehicle is determined as the throttle valve protection opening of the vehicle, and the intake manifold pressure is controlled using the throttle valve protection opening.

[0056] Specifically, when the pressure regulation weight is the first value, it indicates that the intake manifold pressure is high. At this time, the minimum opening of the vehicle's throttle needs to be set as the vehicle's throttle protection opening, and the vehicle's throttle needs to be closed to reduce the intake manifold pressure by reducing the intake air volume.

[0057] S209. Determine the third difference between the first value and the pressure regulation weight, and determine the fourth difference between the first value and the second value.

[0058] The first value is greater than the second value.

[0059] For example, as described above, if the pressure regulation weight is w, then the third difference is 1-w and the fourth difference is 1-0.

[0060] S210. Determine the quotient of the third difference and the fourth difference, and multiply the quotient by the maximum opening of the vehicle's throttle valve to determine the throttle valve protection opening of the vehicle, and use the throttle valve protection opening to control the intake manifold pressure.

[0061] For example, as mentioned above, if the maximum opening of the vehicle's throttle valve is A, then the throttle valve protection opening is [(1-w) / (1-0)]*A. That is, when the pressure regulation weight is less than the first value but greater than the second value, it indicates that the intake manifold pressure is within the dangerous pressure range. At this time, it is necessary to use the maximum opening of the throttle valve to calculate the throttle valve protection opening, and then adjust the actual opening of the vehicle's throttle valve to the throttle valve protection opening to achieve the control of the intake manifold pressure.

[0062] Optionally, controlling the intake manifold pressure using the throttle protection opening includes: determining the minimum value between the throttle protection opening and the current actual throttle opening; setting the minimum value as the target opening; and adjusting the vehicle's throttle opening to the target opening to control the intake manifold pressure, wherein the vehicle's throttle opening is positively correlated with the intake manifold pressure. The advantage of this configuration is that by selecting the minimum value between the throttle protection opening and the current actual throttle opening, excessive intake manifold pressure is further avoided.

[0063] Specifically, the relationship between the throttle protection opening and the current actual throttle opening can be compared, and the throttle opening of the vehicle can be adjusted to the minimum of the two to control the intake manifold pressure.

[0064] The method for controlling intake manifold pressure provided in this invention presets a dangerous pressure upper limit (first pressure threshold) and a dangerous pressure lower limit (second pressure threshold), and determines the pressure adjustment weight of the actual intake manifold pressure at either the dangerous pressure upper limit or the dangerous pressure lower limit. When the actual intake manifold pressure is greater than or equal to the dangerous pressure upper limit, or less than or equal to the dangerous pressure lower limit, the throttle opening can be dynamically limited. When the actual intake manifold pressure is greater than the second pressure threshold and less than the first pressure threshold, the throttle opening can be dynamically limited by... Using the first and second pressure thresholds, the pressure regulation weight corresponding to the actual intake manifold pressure between the upper and lower dangerous pressure limits can be accurately calculated. Based on the magnitude of the pressure regulation weight, which is greater than the second value but less than the first value, the corresponding throttle protection opening is reasonably determined as the opening value between the maximum and minimum throttle opening. By dynamically adjusting the throttle opening, the throttle can be appropriately opened instead of fully opening when the intake manifold pressure is too low, thus dynamically protecting the intake manifold pressure.

[0065] Example 3

[0066] Figure 3 This is a schematic diagram of a device for controlling intake manifold pressure according to Embodiment 3 of the present invention. Figure 3 As shown, the device includes: a threshold value determination module 301, a pressure weight determination module 302, and a pressure control module 303, wherein:

[0067] A threshold value determination module is used to determine at least two different pressure threshold values ​​based on the current environmental pressure, wherein the pressure threshold values ​​are positively correlated with the current environmental pressure;

[0068] The pressure weight determination module is used to determine the pressure regulation weight of the intake manifold based on the actual pressure of the vehicle's intake manifold and the at least two different pressure threshold values.

[0069] The pressure control module is used to determine the throttle protection opening of the vehicle according to the pressure adjustment weight, and to control the intake manifold pressure using the throttle protection opening.

[0070] The device for controlling intake manifold pressure provided in this embodiment of the invention determines the pressure adjustment weight of the intake manifold based on the actual pressure of the vehicle's intake manifold and multiple different pressure threshold values. By adjusting the pressure adjustment weight, the throttle opening of the vehicle is reasonably adjusted to control the intake manifold pressure and prevent it from being too high or too low. By appropriately changing the throttle opening, the problem of poor intake manifold pressure control effect is solved.

[0071] Optionally, the pressure weight determination module includes:

[0072] The first value determination unit is used to determine the pressure regulation weight of the intake manifold as the first value if the actual pressure of the vehicle's intake manifold is greater than or equal to the first pressure threshold value.

[0073] The second value determination unit is used to determine the pressure regulation weight of the intake manifold as a second value if the actual pressure of the vehicle's intake manifold is less than or equal to a second pressure threshold value, wherein the first pressure threshold value is greater than the second pressure threshold value, and the first value is different from the second value.

[0074] Optionally, the pressure weight determination module includes:

[0075] The first difference determination unit is used to determine the first difference between the actual pressure and the second pressure threshold if the actual pressure of the vehicle's intake manifold is greater than the second pressure threshold and less than the first pressure threshold.

[0076] The second difference determination unit is used to determine a second difference between the first pressure threshold and the second pressure threshold;

[0077] The pressure regulation weight determination unit is used to determine the quotient of the first difference and the second difference as the pressure regulation weight of the intake manifold.

[0078] Optional, the pressure control module includes:

[0079] The first protection opening degree determination unit is used to determine the minimum opening degree of the throttle valve of the vehicle as the throttle valve protection opening degree of the vehicle when the pressure regulation weight is the first value.

[0080] The second protection opening determination unit is used to determine the maximum opening of the throttle valve of the vehicle as the throttle valve protection opening of the vehicle when the pressure regulation weight is the second value.

[0081] Optionally, the first value is greater than the second value.

[0082] Optional, the pressure control module includes:

[0083] The difference determination unit is used to determine a third difference between the first value and the pressure regulation weight when the pressure regulation weight is greater than the second value and less than the first value, and to determine a fourth difference between the first value and the second value.

[0084] The third protection opening determination unit is used to determine the quotient of the third difference and the fourth difference, and to determine the throttle protection opening of the vehicle by multiplying the quotient by the maximum opening of the throttle valve of the vehicle.

[0085] Optional, the pressure control module includes:

[0086] The minimum opening determination unit is used to determine the minimum value between the throttle protection opening and the current actual opening of the throttle.

[0087] A pressure control unit is used to determine the minimum value as the target opening and adjust the throttle opening of the vehicle to the target opening, so as to control the intake manifold pressure, wherein the throttle opening of the vehicle is positively correlated with the intake manifold pressure.

[0088] The device for controlling intake manifold pressure provided in the embodiments of the present invention can execute the method for controlling intake manifold pressure provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the method.

[0089] Example 4

[0090] Figure 4 A schematic diagram of a vehicle 40, which can be used to implement embodiments of the present invention, is shown. Various forms of digital computers, such as in-vehicle systems, can be configured in the vehicle. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0091] like Figure 4 As shown, vehicle 40 includes at least one processor 41 and a memory, such as read-only memory (ROM) 42 and random access memory (RAM) 43, communicatively connected to at least one processor 41. The memory stores computer programs executable by at least one processor. Processor 41 can perform various appropriate actions and processes based on the computer program stored in ROM 42 or loaded from storage unit 48 into RAM 43. RAM 43 can also store various programs and data required for the operation of vehicle 40. Processor 41, ROM 42, and RAM 43 are interconnected via bus 44. Input / output (I / O) interface 45 is also connected to bus 44.

[0092] Multiple components in vehicle 40 are connected to I / O interface 45, including: input unit 46, such as keyboard, mouse, etc.; output unit 47, such as various types of displays, speakers, etc.; storage unit 48, such as disk, optical disk, etc.; and communication unit 49, such as network card, modem, wireless transceiver, etc. Communication unit 49 allows vehicle 40 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0093] Processor 41 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 41 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 41 performs the various methods and processes described above, such as methods for controlling intake manifold pressure.

[0094] In some embodiments, the method for controlling intake manifold pressure may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 48. In some embodiments, part or all of the computer program may be loaded and / or installed on vehicle 40 via ROM 42 and / or communication unit 49. When the computer program is loaded into RAM 43 and executed by processor 41, one or more steps of the method for controlling intake manifold pressure described above may be performed. Alternatively, in other embodiments, processor 41 may be configured to perform the method for controlling intake manifold pressure by any other suitable means (e.g., by means of firmware).

[0095] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0096] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0097] The computer equipment provided above can be used to execute the method for controlling intake manifold pressure provided in any of the above embodiments, and has the corresponding functions and beneficial effects.

[0098] Example 5

[0099] In the context of this invention, a computer-readable storage medium may be a tangible medium, wherein the computer-executable instructions, when executed by a computer processor, are used to perform a method for controlling intake manifold pressure, the method comprising:

[0100] At least two different pressure thresholds are determined based on the current environmental pressure, wherein the pressure thresholds are positively correlated with the current environmental pressure;

[0101] The pressure regulation weight of the intake manifold is determined based on the actual pressure of the vehicle's intake manifold and the at least two different pressure thresholds.

[0102] The throttle protection opening of the vehicle is determined based on the pressure regulation weight, and the intake manifold pressure is controlled using the throttle protection opening.

[0103] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by, or in conjunction with, an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0104] The computer equipment provided above can be used to execute the method for controlling intake manifold pressure provided in any of the above embodiments, and has the corresponding functions and beneficial effects.

[0105] It is worth noting that in the embodiments of the above-mentioned device for controlling intake manifold pressure, the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of each functional unit are only for easy differentiation and are not used to limit the scope of protection of the present invention.

[0106] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method for controlling intake manifold pressure, characterized in that, include: At least two different pressure thresholds are determined based on the current environmental pressure, wherein the pressure thresholds are positively correlated with the current environmental pressure; The pressure regulation weight of the intake manifold is determined based on the actual pressure of the vehicle's intake manifold and the at least two different pressure thresholds. The throttle protection opening of the vehicle is determined according to the pressure regulation weight, and the intake manifold pressure is controlled using the throttle protection opening. The step of determining the pressure regulation weight of the intake manifold based on the actual pressure of the vehicle's intake manifold and the at least two different pressure threshold values ​​includes: If the actual pressure in the vehicle's intake manifold is greater than or equal to the first pressure threshold, then the pressure regulation weight of the intake manifold is determined to be the first value. If the actual pressure in the vehicle's intake manifold is less than or equal to the second pressure threshold, then the pressure regulation weight of the intake manifold is determined to be the second value, wherein the first pressure threshold is greater than the second pressure threshold, and the first value is greater than the second value. If the actual pressure in the vehicle's intake manifold is greater than the second pressure threshold and less than the first pressure threshold, then a first difference between the actual pressure and the second pressure threshold is determined. Determine a second difference between the first pressure threshold and the second pressure threshold; The quotient of the first difference and the second difference is determined as the pressure regulation weight of the intake manifold; The step of determining the throttle protection opening of the vehicle based on the pressure adjustment weight includes: When the pressure regulation weight is the first value, the minimum opening of the throttle valve of the vehicle is determined as the throttle valve protection opening of the vehicle. When the pressure regulation weight is the second value, the maximum opening of the throttle valve of the vehicle is determined as the throttle valve protection opening of the vehicle. When the pressure regulation weight is greater than the second value and less than the first value, a third difference between the first value and the pressure regulation weight is determined, and a fourth difference between the first value and the second value is determined. The quotient of the third difference and the fourth difference is determined, and the product of the quotient and the maximum opening of the throttle valve of the vehicle is determined as the throttle valve protection opening of the vehicle.

2. The method according to claim 1, characterized in that, The method of controlling the intake manifold pressure using the throttle valve protection opening includes: Determine the minimum value between the throttle protection opening and the current actual throttle opening; The minimum value is determined as the target opening, and the throttle opening of the vehicle is adjusted to the target opening to control the intake manifold pressure, wherein the throttle opening of the vehicle is positively correlated with the intake manifold pressure.

3. A device for controlling intake manifold pressure, characterized in that, include: A threshold value determination module is used to determine at least two different pressure threshold values ​​based on the current environmental pressure, wherein the pressure threshold values ​​are positively correlated with the current environmental pressure; The pressure weight determination module is used to determine the pressure regulation weight of the intake manifold based on the actual pressure of the vehicle's intake manifold and the at least two different pressure threshold values. The pressure control module is used to determine the throttle protection opening of the vehicle according to the pressure regulation weight, and to control the intake manifold pressure using the throttle protection opening. The pressure weight determination module includes: The first value determination unit is used to determine the pressure regulation weight of the intake manifold as the first value if the actual pressure of the vehicle's intake manifold is greater than or equal to the first pressure threshold value. The second value determination unit is used to determine the pressure regulation weight of the intake manifold as the second value if the actual pressure of the vehicle's intake manifold is less than or equal to the second pressure threshold value, wherein the first pressure threshold value is greater than the second pressure threshold value, and the first value is greater than the second value. The first difference determination unit is used to determine the first difference between the actual pressure and the second pressure threshold if the actual pressure of the vehicle's intake manifold is greater than the second pressure threshold and less than the first pressure threshold. The second difference determination unit is used to determine a second difference between the first pressure threshold and the second pressure threshold; The pressure regulation weight determination unit is used to determine the quotient of the first difference and the second difference as the pressure regulation weight of the intake manifold. The pressure control module includes: The first protection opening degree determination unit is used to determine the minimum opening degree of the throttle valve of the vehicle as the throttle valve protection opening degree of the vehicle when the pressure regulation weight is the first value. The second protection opening degree determination unit is used to determine the maximum opening degree of the throttle valve of the vehicle as the throttle valve protection opening degree of the vehicle when the pressure regulation weight is the second value. The difference determination unit is used to determine a third difference between the first value and the pressure regulation weight when the pressure regulation weight is greater than the second value and less than the first value, and to determine a fourth difference between the first value and the second value. The third protection opening determination unit is used to determine the quotient of the third difference and the fourth difference, and to determine the throttle protection opening of the vehicle by multiplying the quotient by the maximum opening of the throttle valve of the vehicle.

4. A vehicle, characterized in that, The vehicles include: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, which enables the at least one processor to perform the method for controlling intake manifold pressure as described in any one of claims 1-2.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed by a processor, implement the method for controlling intake manifold pressure as described in any one of claims 1-2.

Images