Control Method, Device, Equipment, and Computer-Readable Storage Medium

Abstract

Embodiments of the present application disclose a control method, device, equipment, and computer-readable storage medium. The method includes: detecting whether the required torque of the engine is less than a preset required torque, or detecting whether the state of the engine is an idle state; if the required torque is less than the preset required torque, or if the state of the engine is an idle state, controlling the opening of the wastegate to the fully open position, and when the opening of the wastegate reaches the fully open position, performing a power-off operation on the drive motor of the wastegate to stop the drive motor of the wastegate from running, while reducing the power consumption of the drive motor and also reducing the heat loss of the drive motor caused by continuous operation.

Description

Technical Field

[0001] This application relates to the field of vehicles, and particularly to a control method, device, equipment, and computer-readable storage medium. Background Art

[0002] The opening degree of the wastegate in a vehicle directly affects the torque of the engine. In the process of dynamically adjusting the opening degree of the wastegate in existing vehicles, the driving motor of the wastegate has been in an operating state, consuming a relatively large amount of electricity. Moreover, the driving motor is close to the heat source, the volute, causing the driving motor to heat up and wear during continuous operation. Summary of the Invention

[0003] To solve the above technical problems, embodiments of this application respectively provide a control method, device, equipment, and computer-readable storage medium to reduce the probability of the driving motor of the wastegate heating up, while reducing the wear and power consumption of the driving motor.

[0004] Other features and advantages of this application will become apparent through the following detailed description, or be partially learned through the practice of this application.

[0005] According to one aspect of the embodiments of this application, a control method is provided, including: detecting whether the required torque of the engine is less than a preset required torque, or detecting whether the state of the engine is an idle state; if the required torque is less than the preset required torque, or if the state of the engine is the idle state, controlling the opening degree of the wastegate to be opened to the full opening degree, and when the opening degree of the wastegate reaches the full opening degree, performing a power-off operation on the driving motor of the wastegate.

[0006] According to one aspect of the embodiments of this application, a control device is provided, including: a detection module configured to detect whether the required torque of the engine is less than a preset required torque, or detect whether the state of the engine is an idle state; a control module configured to, if the required torque is less than the preset required torque, or if the state of the engine is in the idle state, control the opening degree of the wastegate to be opened to the full opening degree, and when the opening degree of the wastegate reaches the full opening degree, perform a power-off operation on the driving motor of the wastegate.

[0007] In another exemplary embodiment, the detection module includes: a first detection unit configured to, if the required torque is greater than or equal to the preset required torque, or if the state of the engine is not the idle state, control the opening degree of the wastegate to be opened to a target opening degree; wherein, the opening degree value of the target opening degree is less than the opening degree value of the full opening degree.

[0008] In another exemplary embodiment, the first detection unit includes: a determination subunit configured to determine the boost pressure value of the wastegate according to the required torque and the target opening degree, or determine the boost pressure value of the wastegate according to the operating condition information of the engine and the target opening degree; and a control subunit configured to match a boost voltage according to the boost pressure value and control the output of the boost voltage so as to open the opening degree of the wastegate to the target opening degree.

[0009] In another exemplary embodiment, the determination subunit includes: a first matching section configured to match the required torque with a preset required torque in a first Map and match the target opening degree with a preset target opening degree in the first Map to obtain a first target coordinate point where both matches are successful; and a first determination section configured to obtain a first preset boost pressure value inserted in the first target coordinate point and determine the first preset boost pressure value as the boost pressure value of the wastegate.

[0010] In another exemplary embodiment, the control device further includes: a coordinate system construction module configured to construct a coordinate system with the preset required torque as a first dimension and the preset target opening degree as a second dimension; a coordinate point plotting module configured to plot a coordinate point in the coordinate system according to the preset target opening degree corresponding to the preset required torque; and a graph plotting module configured to fill the first preset boost pressure value into the coordinate point to obtain the first Map.

[0011] In another exemplary embodiment, the determination subunit includes: a second matching section configured to match the operating condition information with preset operating condition information in a second Map and match the target opening degree with a preset target opening degree in the second Map to obtain a second target coordinate point where both matches are successful; and a second determination section configured to obtain a second preset boost pressure value inserted in the second target coordinate point and determine the second preset boost pressure value as the boost pressure value of the wastegate.

[0012] In another exemplary embodiment, the maximum opening degree of the wastegate is a stop opening degree, and the opening degree value of the stop opening degree is greater than the opening degree value of the fully open opening degree.

[0013] According to one aspect of the embodiments of the present application, an electronic device is provided, including: a controller; and a memory for storing one or more programs, which when executed by the controller, are configured to execute the above control method.

[0014] According to one aspect of the embodiments of the present application, there is also provided a computer-readable storage medium, on which computer-readable instructions are stored. When the computer-readable instructions are executed by a processor of a computer, the computer is caused to execute the above control method.

[0015] According to one aspect of the embodiments of the present application, there is also provided a computer program product or a computer program. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the above control method.

[0016] In the technical solution provided by the embodiments of the present application, by detecting whether the required torque of the engine is less than a preset required torque, or detecting whether the state of the engine is an idle state; if the required torque is less than the preset required torque, or if the state of the engine is an idle state, the opening of the wastegate is controlled to be fully opened, and when the opening of the wastegate reaches the fully opened position, the driving motor of the wastegate is powered off, so that the driving motor of the wastegate stops running, while reducing the power consumption of the driving motor, it also reduces the heat loss caused by the continuous operation of the driving motor.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0019] Figure 1 is a flowchart of a control method shown in an exemplary embodiment of the present application;

[0020] Figure 2 is a schematic diagram of the forces on the wastegate seat shown in an exemplary embodiment of the present application;

[0021] Figure 3 is based on Figure 1 shown in the embodiment is a flowchart of another control method;

[0022] Figure 4 is a schematic diagram of the fully opened position, the target opening position and the fully closed position of the wastegate in an exemplary embodiment of the present application;

[0023] Figure 5 It is a schematic diagram of the voltage value corresponding to the opening degree of the wastegate in an exemplary embodiment of the present application;

[0024] Figure 6 It is based on Figure 3 The flowchart of another control method shown in the illustrated embodiment;

[0025] Figure 7 It is based on Figure 6 The flowchart of another control method shown in the illustrated embodiment;

[0026] Figure 8 It is based on Figure 7 The flowchart of another control method proposed according to the illustrated embodiment;

[0027] Figure 9 It is based on Figure 6 The flowchart of another control method shown in the illustrated embodiment;

[0028] Figure 10 It is a schematic diagram of the structure of the vehicle wastegate shown in an exemplary embodiment of the present application;

[0029] Figure 11 It is a schematic diagram of the voltage value corresponding to the opening degree of the wastegate in another exemplary embodiment of the present application;

[0030] Figure 12 It is a schematic diagram of the structure of the control device shown in an exemplary embodiment of the present application;

[0031] Figure 13 It is a schematic diagram of the structure of the computer system of the electronic device shown in an exemplary embodiment of the present application. Detailed implementation manners

[0032] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all the implementation manners consistent with the present application. On the contrary, they are merely examples of the devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0033] The block diagrams shown in the drawings are only functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0034] The flowcharts shown in the accompanying drawings are only illustrative, not necessarily including all content and operations / steps, nor necessarily executed in the described order. For example, some operations / steps can be decomposed, while some operations / steps can be combined or partially combined. Therefore, the actual execution order may change according to the actual situation.

[0035] As used in this application, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0036] First, please refer to Figure 1 , Figure 1 which is a flowchart of a control method shown in an exemplary embodiment of this application. The control method at least includes S110 to S120, which are introduced in detail as follows:

[0037] S110: Detect whether the required torque of the engine is less than the preset required torque, or detect whether the state of the engine is the idle state.

[0038] The torque of the engine is a specific indicator of the engine's acceleration ability, specifically referring to the torque output from the crankshaft end of the engine. Under the condition of fixed power, it is inversely proportional to the engine speed. The faster the speed, the smaller the torque; the slower the speed, the larger the torque. To a certain extent, it reflects the vehicle's load-bearing capacity. The required torque of the engine is also the torque requirement of the engine, and the required torque can reflect the operating state of the engine, such as indicating that the engine needs to accelerate, decelerate, or operate at idle.

[0039] The preset required torque is a standard value preset before the vehicle leaves the factory. This embodiment does not limit the specific value and unit of the preset required torque, etc.

[0040] The opening degree of the wastegate in the vehicle is closely related to the torque of the engine. One way in this embodiment is to determine the opening degree of the wastegate by detecting whether the required torque of the engine is less than the preset required torque, so as to control the opening degree of the wastegate. In addition, when the required torque of the engine is small, the engine is usually in the idle state. Therefore, another way in this embodiment is to detect whether the state of the engine is the idle state to determine the opening degree of the wastegate, so as to control the opening degree of the wastegate.

[0041] S120: If the required torque is less than the preset required torque, or if the state of the engine is the idle state, then control the opening degree of the wastegate to be fully opened, and when the opening degree of the wastegate reaches the fully opened state, perform a power-off operation on the drive motor of the wastegate.

[0042] The fully open position is the maximum position at which the wastegate can be opened under the control method of this embodiment in this application, but it does not necessarily represent the physical maximum position at which the wastegate can be opened. This embodiment places a limit on it.

[0043] This embodiment does not modify the existing engine structure. Only by judging the preconditions, the drive motor is powered off to reduce the overheating phenomenon caused by the continuous operation of the drive motor, and at the same time, wear and power consumption can also be reduced.

[0044] After the drive motor of the wastegate is powered off, the engine is still operating at low load, and there is still a small amount of exhaust gas discharged from the cylinder in the waste bypass valve hole, as Figure 2 shown. Figure 2 FIG. is a schematic diagram of the force on the wastegate seat shown in an exemplary embodiment of this application. The exhaust gas discharged from the cylinder will form a thrust F2 on the wastegate seat; among them, the area of the wastegate seat is A2, and P is the pressure of the wastegate seat being impacted by the exhaust gas. Because the exhaust of the engine is pulsating, the position corresponding to the fully open position of the wastegate may fluctuate slightly following the magnitude of F2, and this fluctuation amplitude will not be too large because there is an inherent mechanical resistance F a in the wastegate mechanism, and there is also a frictional resistance F b . The resultant force F1 of these two forces will reduce the amplitude of the fluctuation of F2 pushing the wastegate.

[0045] In this embodiment, by detecting whether the required torque of the engine is less than the preset required torque, or detecting whether the state of the engine is the idle state; if the required torque is less than the preset required torque, or if the state of the engine is the idle state, then the opening of the wastegate is controlled to be opened to the fully open position, and when the opening of the wastegate reaches the fully open position, the drive motor of the wastegate is powered off, so that the drive motor of the wastegate stops running, while reducing the power consumption of the drive motor, it also reduces the heat loss caused by the continuous operation of the drive motor.

[0046] In another exemplary embodiment, the branching steps in S110 are further described. For details, please refer to Figure 3 . Figure 3 It is based on Figure 1 FIG. shows a flowchart of another control method shown in the illustrated embodiment. This control method further includes at least S310 in S110, which is introduced in detail as follows:

[0047] S310: If the required torque is greater than or equal to the preset required torque, or if the state of the engine is not the idle state, then control the opening of the wastegate to be opened to the target opening; where the opening value of the target opening is less than the opening value of the fully open position.

[0048] The position corresponding to the target opening degree is between the positions corresponding to the fully open position and the fully closed position of the wastegate, such as Figure 4 shown. Figure 4 is a schematic diagram of the fully open position, the target opening degree, and the fully closed position of the wastegate in an exemplary embodiment of the present application. Among them, the position corresponding to the target opening degree is any position between the fully open position and the fully closed position.

[0049] This embodiment further illustrates that if the required torque is greater than or equal to the preset required torque, or if the state of the engine is not the idle state, the opening degree of the wastegate is controlled to open to the target opening degree to meet the operating requirements of the engine.

[0050] The opening degree of the wastegate in the vehicle is related to the torque magnitude of the engine. The torque magnitude of the engine can be adjusted by controlling the voltage value, that is, a corresponding relationship between the opening degree of the wastegate and the voltage value is established. Specifically, as Figure 5 shown. Figure 5 is a schematic diagram of the voltage value corresponding to the opening degree of the wastegate in an exemplary embodiment of the present application. Among them, any opening degree of the wastegate corresponds to a voltage value, and the opening degree and the voltage value are linearly related. The opening degree of any wastegate can be calculated according to the following formula:

[0051]

[0052] If the opening degree of the wastegate is opened from the fully closed position to the target opening degree, the boost voltage can be calculated through the voltage value corresponding to the target opening degree and the voltage value corresponding to the fully closed position. By controlling the output boost voltage value, the opening degree of the wastegate is opened to the target opening degree. In addition, the boost voltage can also be determined through the boost pressure value. For details, please refer to Figure 6 , Figure 6 is a flowchart of another control method shown based on the Figure 3 shown embodiment. This control method also includes S610 to S620 in Figure 3 shown S310, which will be introduced in detail below:

[0053] S610: Determine the boost pressure value of the wastegate according to the required torque and the target opening degree, or determine the boost pressure value of the wastegate according to the operating condition information of the engine and the target opening degree.

[0054] This embodiment shows two ways to determine the boost pressure value of the wastegate. Both ways utilize the target opening degree. Specifically, the boost pressure value of the wastegate is determined according to the required torque and the target opening degree, or the boost pressure value of the wastegate is determined according to the operating condition information of the engine and the target opening degree.

[0055] S620: Match the boost voltage according to the boost pressure value, and control the output boost voltage to open the opening degree of the wastegate to the target opening degree.

[0056] Exemplarily, according to the supercharging pressure value determined in S610, a supercharging voltage is matched in a preset supercharging voltage - supercharging pressure table, and the supercharging voltage is controlled to be output to adjust the opening degree of the wastegate to the target opening degree.

[0057] In this embodiment, according to the required torque and the target opening degree, or according to the supercharging pressure value determined from the engine operating condition information and the target opening degree, the supercharging voltage to be controlled and output is further determined quickly. Through voltage control, it is more stable and accurate, so that the opening degree of the wastegate is accurately opened to the target opening degree.

[0058] In another exemplary embodiment of the present application, a detailed description is given on how to determine the supercharging pressure value of the wastegate according to the required torque and the target opening degree. For details, please refer to Figure 7 , Figure 7 which is based on Figure 6 The flowchart of another control method shown in the illustrated embodiment. This control method includes S710 to S720 in S610 as shown in Figure 6 shown below, and a detailed introduction is given as follows:

[0059] S710: Match the required torque with the preset required torque in the first Map, and match the target opening degree with the preset target opening degree in the first Map to obtain the first target coordinate point where both matches are successful.

[0060] The coordinate system in the first Map is a coordinate system composed of a preset required torque dimension and a preset target opening degree dimension. Among them, a corresponding preset supercharging pressure value, that is, the first preset supercharging pressure value in this embodiment, is inserted into each coordinate point.

[0061] S720: Obtain the first preset supercharging pressure value inserted in the first target coordinate point, and determine the first preset supercharging pressure value as the supercharging pressure value of the wastegate.

[0062] In this embodiment, according to the required torque and the target opening degree, the target coordinate point, that is, the first target coordinate point, is determined in the first Map, and the first preset supercharging pressure value in the target coordinate point is obtained as the supercharging pressure value of the wastegate.

[0063] This embodiment combines the first Map diagram and can quickly and accurately determine the supercharging pressure value of the wastegate according to the required torque and the target opening degree, avoiding a large amount of calculation processes for the supercharging pressure value, simplifying the calculation process, facilitating the acquisition of the supercharging pressure value, and thus accelerating the processing time of the control process of the present application.

[0064] In another exemplary embodiment of the present application, a detailed description is given on how to construct the first Map. For details, please refer to Figure 8 , Figure 8 which is based on Figure 7Flowchart of another control method proposed by the illustrated embodiment. Before S710 as shown in Figure 7 it further includes at least S810 to S830, which are introduced in detail below:

[0065] S810: Construct a coordinate system with the preset required torque as the first dimension and the preset target opening as the second dimension.

[0066] S820: Plot coordinate points in the coordinate system according to the preset target opening corresponding to the preset required torque.

[0067] S830: Fill the first preset supercharging pressure value into the coordinate points to obtain the first Map.

[0068] An exemplary illustration of this embodiment is as follows: taking the preset required torque as the x-axis and the preset target opening as the y-axis, an xy coordinate system is constructed; coordinate points are plotted in the coordinate system according to the preset target opening corresponding to the preset required torque, and multiple coordinate points such as (4, 2), (2, 5), and (1, 2) are obtained; the preset supercharging pressure value is filled into the coordinate points. For example, the preset supercharging pressure value filled in the coordinate point (4, 2) is 5; thus, the first Map is constructed.

[0069] This embodiment specifically illustrates how to construct the first Map. By constructing a coordinate system with the preset required torque and the preset target opening as different dimensions, plotting coordinate points according to their corresponding values, and filling the corresponding preset supercharging pressure value into the coordinate points, the construction process of the first Map can be completed quickly.

[0070] In another exemplary embodiment of the present application, a detailed description is given on how to determine the supercharging pressure value of the exhaust gas valve according to the engine operating condition information and the target opening. For details, please refer to Figure 9 , Figure 9 which is based on Figure 6 Flowchart of another control method shown in the illustrated embodiment. In S610 as shown in Figure 6 it includes S910 to S920, which are introduced in detail below:

[0071] S910: Match the operating condition information with the preset operating condition information in the second Map, and match the target opening with the preset target opening in the second Map to obtain the second target coordinate points where both matches are successful.

[0072] The coordinate system in the second Map is a coordinate system composed of the preset operating condition information and the preset target opening dimension. Among them, the corresponding preset supercharging pressure value, that is, the second preset supercharging pressure value in this embodiment, is inserted into each coordinate point.

[0073] S920: Obtain the second preset supercharging pressure value inserted in the second target coordinate point, and determine the second preset supercharging pressure value as the supercharging pressure value of the wastegate.

[0074] In this embodiment, the target coordinate point, i.e., the second target coordinate point, is determined in the second Map according to the working condition information and the target opening degree of the engine, and the second preset supercharging pressure value in the target coordinate point is obtained as the supercharging pressure value of the wastegate.

[0075] Combined with the second Map, this embodiment can quickly and accurately determine the supercharging pressure value of the wastegate according to the working condition information and the target opening degree of the engine, avoiding a large amount of calculation processes of the supercharging pressure value, simplifying the calculation process, facilitating the acquisition of the supercharging pressure value, and thus accelerating the processing time of the control process of this application.

[0076] In another exemplary embodiment of this application, a stop opening degree of the wastegate is set to reduce the damage probability of the drive motor and the wastegate. For details, please refer to Figure 10 , Figure 10 is a schematic structural diagram of the vehicle wastegate shown in an exemplary embodiment of this application. Among them, the maximum physical opening degree of the wastegate is the stop opening degree, and the opening degree value of the stop opening degree is greater than the opening degree value of the fully open opening degree. That is, in this embodiment, when setting the fully open opening degree of the wastegate, enough positions are reserved for the hard stop points in the internal structure to ensure that when the drive motor of the wastegate is powered off, the wastegate will not cause the inside of the drive motor to hit the hard stop point under the pressure of the exhaust gas, avoiding damage to the drive motor and the wastegate.

[0077] Correspondingly, in the voltage value corresponding to the opening degree of the wastegate, the voltage value corresponding to the hard stop point position is increased. For details, please refer to Figure 11 shown, Figure 11 is a schematic diagram of the voltage value corresponding to the opening degree of the wastegate in another exemplary embodiment of this application. Among them, it includes the voltage values corresponding to the bottom dead center position and the top dead center position.

[0078] In this embodiment, the fully open opening degree of the wastegate is not the maximum physical opening degree, and the maximum physical opening degree is the stop opening degree. Under the control method of this embodiment, when controlling the wastegate to be fully open, the opening degree is not the maximum physical opening degree, that is, enough margin opening degrees are reserved to ensure that when the drive motor of the wastegate is powered off, the wastegate will not cause the inside of the drive motor to hit the hard stop point under the pressure of the exhaust gas, avoiding damage to the drive motor and the wastegate.

[0079] On the other hand, this application also provides a control device, as Figure 12 shown, Figure 12 is a schematic structural diagram of the control device shown in an exemplary embodiment of this application. Among them, the control device includes:

[0080] The detection module 1210 is configured to detect whether the required torque of the engine is less than a preset required torque, or detect whether the state of the engine is an idle state;

[0081] The control module 1230 is configured to, if the required torque is less than the preset required torque, or if the state of the engine is in the idle state, control the opening of the wastegate to the fully open position, and when the opening of the wastegate reaches the fully open position, cut off the power supply to the drive motor of the wastegate.

[0082] In another exemplary embodiment, the detection module 1210 includes:

[0083] The first detection unit is configured to, if the required torque is greater than or equal to the preset required torque, or if the state of the engine is not in the idle state, control the opening of the wastegate to the target opening; wherein, the opening value of the target opening is less than the opening value of the fully open position.

[0084] In another exemplary embodiment, the first detection unit includes:

[0085] The determination subunit is configured to determine the supercharging pressure value of the wastegate according to the required torque and the target opening, or determine the supercharging pressure value of the wastegate according to the operating condition information of the engine and the target opening;

[0086] The control subunit is configured to match the supercharging voltage according to the supercharging pressure value, and control the output of the supercharging voltage so that the opening of the wastegate is opened to the target opening.

[0087] In another exemplary embodiment, the determination subunit includes:

[0088] The first matching block is configured to match the required torque with the preset required torque in the first Map, and match the target opening with the preset target opening in the first Map to obtain the first target coordinate point where both matches are successful;

[0089] The first determination block is configured to obtain the first preset supercharging pressure value inserted in the first target coordinate point, and determine the first preset supercharging pressure value as the supercharging pressure value of the wastegate.

[0090] In another exemplary embodiment, the control device further includes:

[0091] The coordinate system construction module is configured to construct a coordinate system with the preset required torque as the first dimension and the preset target opening as the second dimension;

[0092] The coordinate point plotting module is configured to plot coordinate points in the coordinate system according to the preset target opening corresponding to the preset required torque;

[0093] The graphic drawing module is configured to fill the first preset supercharging pressure value into the coordinate points to obtain a first Map.

[0094] In another exemplary embodiment, the determining subunit includes:

[0095] A second matching section, configured to match the operating condition information with the preset operating condition information in the second Map, and match the target opening with the preset target opening in the second Map, so as to obtain a second target coordinate point where both matches are successful;

[0096] A second determining section, configured to obtain the second preset supercharging pressure value inserted in the second target coordinate point, and determine the second preset supercharging pressure value as the supercharging pressure value of the wastegate.

[0097] In another exemplary embodiment, the maximum opening of the wastegate is the stop opening, and the opening value of the stop opening is greater than the opening value of the fully open opening.

[0098] It should be noted that the control device provided in the above embodiment and the control method provided in the foregoing embodiment belong to the same concept. The specific manners in which each module and unit perform operations have been described in detail in the method embodiment, and will not be elaborated here.

[0099] Another aspect of the present application further provides an electronic device, including: a controller; a memory for storing one or more programs, which when executed by the controller, are used to execute the above control method.

[0100] Please refer to Figure 13 , Figure 13 is a schematic structural diagram of a computer system of an electronic device shown in an exemplary embodiment of the present application, which shows a schematic structural diagram of a computer system of an electronic device suitable for implementing the embodiments of the present application.

[0101] It should be noted that Figure 13 the computer system 1300 of the electronic device shown is only an example, and should not bring any limitation to the functions and usage scopes of the embodiments of the present application.

[0102] Such as Figure 13As shown, computer system 1300 includes a Central Processing Unit (CPU) 1301, which can perform various appropriate actions and processes according to a program stored in a Read-Only Memory (ROM) 1302 or a program loaded from a storage section 1308 into a Random Access Memory (RAM) 1303, such as executing the methods in the above embodiments. In the RAM 1303, various programs and data required for system operation are also stored. The CPU 1301, ROM 1302, and RAM 1303 are connected to each other via a bus 1304. An Input / Output (I / O) interface 1305 is also connected to the bus 1304.

[0103] The following components are connected to the I / O interface 1305: an input section 1306 including a keyboard, a mouse, etc.; an output section 1307 including, for example, a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), etc., and a speaker, etc.; a storage section 1308 including a hard disk, etc.; and a communication section 1309 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 1309 performs communication processing via a network such as the Internet. A drive 1310 is also connected to the I / O interface 1305 as needed. A removable medium 1311, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 1310 as needed so that a computer program read from it can be installed into the storage section 1308 as needed.

[0104] Specifically, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via the communication section 1309, and / or installed from the removable medium 1311. When the computer program is executed by a Central Processing Unit (CPU) 1301, various functions defined in the system of the present application are executed.

[0105] It should be noted that the computer-readable medium shown in the embodiments of the present application can be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, the computer-readable storage medium can be any tangible medium that contains or stores a program, and this program can be used by or in combination with an instruction execution system, apparatus, or device. In the present application, a computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, in which a computer-readable computer program is carried. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium can also be any computer-readable medium other than the computer-readable storage medium, and this computer-readable medium can send, propagate, or transmit a program for use by or in combination with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted by any suitable medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0106] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present application. Among them, each block in the flowchart or block diagram can represent a module, a program segment, or a part of code, and the above module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in an order different from that marked in the accompanying drawings. For example, two consecutively represented blocks can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram or flowchart, and the combination of blocks in the block diagram or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0107] The units involved in the embodiments of the present application can be implemented in software or in hardware, and the described units can also be provided in a processor. In some cases, the names of these units do not constitute a limitation on the units themselves.

[0108] Another aspect of the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the control method as described above is implemented. The computer-readable storage medium may be included in the electronic device described in the above embodiments, or may exist alone without being assembled into the electronic device.

[0109] Another aspect of the present application also provides a computer program product or a computer program. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the control methods provided in the above various embodiments.

[0110] According to one aspect of the embodiments of the present application, a computer system is also provided, including a Central Processing Unit (CPU). The CPU can perform various appropriate actions and processes according to a program stored in a Read-Only Memory (ROM) or a program loaded from a storage section into a Random Access Memory (RAM), such as executing the method in the above embodiments. In the RAM, various programs and data required for system operation are also stored. The CPU, the ROM, and the RAM are connected to each other via a bus. An Input / Output (I / O) interface is also connected to the bus.

[0111] The following components are connected to the I / O interface: an input section including a keyboard, a mouse, etc.; an output section including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), etc. and a speaker, etc.; a storage section including a hard disk, etc.; and a communication section including a network interface card such as a Local Area Network (LAN) card, a modem, etc. The communication section performs communication processing via a network such as the Internet. A drive is also connected to the I / O interface as required. A removable medium, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive as required, so that a computer program read from it can be installed into the storage section as required.

[0112] The above content is only a preferred exemplary embodiment of the present application and is not intended to limit the implementation of the present application. Those of ordinary skill in the art can easily make corresponding adaptations or modifications according to the main concept and spirit of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope required by the claims.

Claims

1. An engine control method, characterized in that, Including: Detect whether the required torque of the engine is less than a preset required torque, or detect whether the state of the engine is an idle state; If the required torque is less than the preset required torque, or if the state of the engine is the idle state, control the opening of the wastegate to the fully open position, and when the opening of the wastegate reaches the fully open position, cut off the power supply to the drive motor of the wastegate; If the required torque is greater than or equal to the preset required torque, or if the state of the engine is not the idle state, control the opening of the wastegate to the target opening; wherein, the opening value of the target opening is less than the opening value of the fully open position; The controlling the opening of the wastegate to the target opening includes: Determine the supercharging pressure value of the wastegate according to the required torque and the target opening, or determine the supercharging pressure value of the wastegate according to the operating condition information of the engine and the target opening; Match a supercharging voltage according to the supercharging pressure value, and control the output of the supercharging voltage so that the opening of the wastegate is opened to the target opening.

2. The method according to claim 1, wherein The determining the supercharging pressure value of the wastegate according to the required torque and the target opening includes: Match the required torque with the preset required torque in the first Map, and match the target opening with the preset target opening in the first Map to obtain a first target coordinate point where both matches are successful; Obtain the first preset supercharging pressure value inserted in the first target coordinate point, and determine the first preset supercharging pressure value as the supercharging pressure value of the wastegate.

3. The method according to claim 2, wherein Before the matching the required torque with the preset required torque in the first Map, the method further includes: Construct a coordinate system with the preset required torque as the first dimension and the preset target opening as the second dimension; Draw a coordinate point in the coordinate system according to the preset target opening corresponding to the preset required torque; Fill the first preset supercharging pressure value into the coordinate point to obtain the first Map.

4. The method according to claim 1, characterized in that, The determining the supercharging pressure value of the wastegate according to the operating condition information of the engine and the target opening includes: Match the operating condition information with the preset operating condition information in the second Map, and match the target opening with the preset target opening in the second Map to obtain a second target coordinate point where both matches are successful; Obtain the second preset supercharging pressure value inserted in the second target coordinate point, and determine the second preset supercharging pressure value as the supercharging pressure value of the wastegate.

5. The method according to any one of claims 1 to 4, characterized in that, The maximum opening of the wastegate is the stop opening, and the opening value of the stop opening is greater than the opening value of the fully open position.

6. An engine control device, characterized in that, Including: A detection module configured to detect whether the required torque of the engine is less than a preset required torque, or detect whether the state of the engine is an idle state; A control module is configured to control the opening degree of the wastegate to the fully open degree if the required torque is less than the preset required torque, or if the state of the engine is in the idle state, and cut off the power supply of the drive motor of the wastegate when the opening degree of the wastegate reaches the fully open degree; if the required torque is greater than or equal to the preset required torque, or if the state of the engine is not in the idle state, control the opening degree of the wastegate to the target opening degree; wherein, the opening degree value of the target opening degree is less than the opening degree value of the fully open degree; the control of the opening degree of the wastegate to the target opening degree includes: determining the supercharging pressure value of the wastegate according to the required torque and the target opening degree, or determining the supercharging pressure value of the wastegate according to the operating condition information of the engine and the target opening degree; matching a supercharging voltage according to the supercharging pressure value, and controlling the output of the supercharging voltage so that the opening degree of the wastegate is opened to the target opening degree.

7. An electronic device, characterized in that, Comprising: A controller; A memory for storing one or more programs, which when executed by the controller, cause the controller to implement the engine control method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, Computer-readable instructions are stored thereon, which when executed by a processor of a computer, cause the computer to execute the engine control method according to any one of claims 1 to 5.

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