Turbocharger control method, device and equipment and readable storage medium

Abstract

The embodiment of the invention provides a control method, device and equipment of a turbocharger and a readable storage medium. The method comprises the steps of obtaining a running condition corresponding to a vehicle; a surge line corresponding to the turbocharger is determined, wherein the surge line is used for representing the airflow oscillation phenomenon of gas in the axis direction of the gas compressor; and under the condition that the operation condition and the surge line meet the preset relation, the first opening and closing angle of the waste gas bypass valve is adjusted, or the second opening and closing angle corresponding to the vehicle power pedal is adjusted. The purpose that the corresponding operation working condition of the vehicle is far away from the surge line is achieved, then the turbocharger is promoted to be in the normal working state, and the situation that the turbocharger emits high-frequency Hiss noise to bring negative driving experience to a driver is avoided.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a control method, device, equipment and readable storage medium for a turbocharger. Background Art

[0002] With the popularity of turbochargers in vehicles, the NVH (Noise, Vibration and Harshness) level of vehicles is constantly improving, and the driving and riding experience of vehicles is improved. During driving, turbochargers inevitably bring operating noise.

[0003] In the related art, in order to reduce the noise in the high-frequency noise area of ​​the vehicle, an additional air intake groove is added to the air inlet of the compressor casing in the turbocharger to weaken other disturbances caused by separation from the mechanical wall, thereby reducing the fluctuations generated by the compressor inlet.

[0004] However, the above solution requires adding additional parts, which increases the manufacturing cost and system weight of the vehicle. In addition, when the air intake slot is damaged, the high-frequency noise generated by the turbocharger (such as Hiss noise, which is the hissing roar of the turbocharger) cannot be suppressed in the first place. Summary of the invention

[0005] The embodiments of the present application provide a control method, device, equipment and readable storage medium for a turbocharger, which can achieve the purpose of suppressing the high-frequency noise generated by the turbocharger to a certain extent. The technical solution is as follows:

[0006] In one aspect, a method for controlling a turbocharger is provided, the method comprising:

[0007] Acquire an operating condition corresponding to the vehicle, the operating condition being used to indicate the operating state of internal components of the vehicle during driving, the operating condition including the operating state of the turbocharger, the turbocharger including a compressor and a wastegate valve;

[0008] Determine a surge line corresponding to the turbocharger, the surge line is used to indicate the airflow oscillation phenomenon of the gas along the axis direction of the compressor, the surge line is determined from a boost characteristic curve, the boost characteristic curve is used to characterize the relationship between the gas flow rate and the boost ratio in the compressor;

[0009] When the operating condition and the surge line meet a preset relationship, the first opening and closing angle of the wastegate valve is adjusted, or the second opening and closing angle corresponding to the power pedal in the vehicle is adjusted.

[0010] In another aspect, a control device for a turbocharger is provided, the device comprising:

[0011] an acquisition module, used for acquiring an operating condition corresponding to the vehicle, wherein the operating condition is used for indicating the operating state of internal components of the vehicle during driving, wherein the operating condition includes the operating state of the turbocharger, and the turbocharger includes a compressor and a wastegate valve;

[0012] a determination module, configured to determine a surge line corresponding to the turbocharger, wherein the surge line is used to indicate an airflow oscillation phenomenon of the gas along an axis direction of the compressor, and the surge line is determined from a boost characteristic curve, wherein the boost characteristic curve is used to characterize a relationship between the gas flow rate and the boost ratio in the compressor;

[0013] The adjustment module is used to adjust the first opening and closing angle of the wastegate valve when the operating condition and the surge line meet a preset relationship, or to adjust the second opening and closing angle corresponding to the power pedal in the vehicle.

[0014] On the other hand, a computer-readable storage medium is provided, wherein at least one section of information is stored in the computer-readable storage medium, and the at least one section of information is loaded and executed by a processor to implement the control method of the turbocharger as described above.

[0015] On the other hand, a computer program product or a computer program is provided, which includes computer instructions 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 to implement the control method of the turbocharger as described above.

[0016] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0017] When it is determined that the turbocharger in the vehicle is surging, the opening and closing angles of the abandoned bypass valve or the power pedal are adjusted to keep the corresponding operating conditions of the vehicle away from the surge line so that the turbocharger is in a normal working state, avoiding the high-frequency Hiss noise emitted by the turbocharger and bringing a negative driving experience to the driver. On the other hand, without adding additional noise reduction devices to the turbocharger, the purpose of protecting the turbocharger can be achieved by adjusting the opening and closing angles of the internal components of the vehicle, thereby reducing the manufacturing cost of the vehicle to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 is a flowchart of a method for controlling a turbocharger provided in an embodiment of the present application;

[0020] Figure 2 is a flow chart of a method for controlling a turbocharger provided by an exemplary embodiment of the present application;

[0021] Figure 3 is based on Figure 2 A flowchart of adjusting the first opening and closing angle provided in an embodiment;

[0022] Figure 4 is a flow chart of a method for controlling a turbocharger provided by another exemplary embodiment of the present application;

[0023] Figure 5 is a flowchart of a control device for a turbocharger provided by an exemplary embodiment of the present application;

[0024] Figure 6 It is a structural block diagram corresponding to a computer device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0026] As shown in the figure, Figure 1 A flow chart of a method for controlling a turbocharger provided by an embodiment of the present application is shown. The flow chart includes a vehicle, a controller 100 of internal components of the vehicle, a turbocharger 101, a wastegate valve 102, and a power pedal 103. The turbocharger 101 includes a wastegate valve 102.

[0027] The controller 100 determines the corresponding operating condition of the vehicle according to the driving data of the vehicle during driving. The operating condition is used to indicate the working state of the internal components of the vehicle during driving. Schematically, the operating condition includes the working state of the turbocharger 101.

[0028] The controller 100 generates a boost characteristic curve 104 corresponding to the turbocharger according to the working state of the turbocharger 101. The boost characteristic curve 104 is marked with a surge line 105, wherein the surge line is used to characterize the air flow oscillation phenomenon occurring along the compressor axis direction in the turbocharger.

[0029] When the controller 100 determines that the operating condition and the surge line meet a preset relationship (eg, the operating condition is close to the surge line, etc.), the first opening and closing angle of the exhaust bypass valve 102 is adjusted to decrease, or the second opening and closing angle of the power pedal 103 is adjusted to increase.

[0030] In another optional embodiment, the vehicle may also be communicatively connected to a server, and the server is responsible for the above-mentioned processes such as determining the operating condition, generating the boost characteristic curve, and judging the relationship between the operating condition and the surge line. After the server determines that the operating condition and the surge line conform to a preset relationship, an adjustment instruction is generated, and the adjustment instruction includes at least one of an adjustment angle of adjusting the first opening and closing angle of the abandoned bypass valve 102 and an adjustment angle of adjusting the second opening and closing angle of the power pedal 102.

[0031] After receiving the adjustment instruction sent by the server, the vehicle parses the adjustment instruction and adjusts the wastegate valve 102 or the power pedal 103 according to the instruction content in the adjustment instruction.

[0032] Wherein, the server and the vehicle are connected through a wireless communication network or a wired communication network, and the wireless communication network or the wired communication network uses standard communication technology and / or protocol. The network is usually the Internet, but it can also be any other network, including but not limited to any combination of a local area network (LAN), a metropolitan area network (MAN), a wide area network (WAN), a mobile, wired or wireless network, a dedicated network or a virtual private network. In some embodiments, the data exchanged through the network is represented by technologies and / or formats including Hyper Text Mark-up Language (HTML), Extensible Markup Language (XML), etc. In addition, conventional encryption technologies such as Secure Socket Layer (SSL), Transport Layer Security (TLS), Virtual Private Network (VPN), Internet Protocol Security (IPsec), etc. can also be used to encrypt all or some links. In other embodiments, customized and / or dedicated data communication technologies can also be used to replace or supplement the above data communication technologies.

[0033] The server can be an independent physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN (Content Delivery Network), and big data and artificial intelligence platforms. Optionally, the server can also be implemented as a node in the blockchain system.

[0034] It should be noted that the information (including but not limited to operating conditions, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals involved in this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions.

[0035] In combination with the above description, the control method of the turbocharger involved in the embodiment of the present application is explained. Figure 2 FIG. 1 is a flow chart of a method for controlling a turbocharger provided by an exemplary embodiment of the present application, and is described by applying the method to a vehicle. Figure 2 As shown, the method includes:

[0036] Step 200, obtaining the operating conditions corresponding to the vehicle.

[0037] Optionally, the operating condition refers to the working state of the internal components of the vehicle during driving. The internal components include but are not limited to a turbocharger, a power pedal, sensors arranged at various positions of the vehicle, tires, etc. In the embodiment of the present application, the operating condition includes the working state of the turbocharger.

[0038] In an optional embodiment, the operating condition is also used to indicate the working state of the vehicle during driving. The operating condition is divided according to the vehicle's movement form, the driving user's control mode, the vehicle's load condition, the vehicle's environmental conditions, the vehicle's road conditions, etc.

[0039] The various working states included in the operating conditions are introduced as follows.

[0040] Divided according to the vehicle's movement form: operating conditions include starting stage, acceleration stage, constant speed stage, deceleration stage, turning stage and other driving conditions.

[0041] Divided by driving user control mode: operating conditions include gear shifting stage, coasting stage, braking stage, throttle speed control stage, steering stage, reversing stage, etc. Among them, the coasting stage includes but is not limited to disengagement coasting, neutral coasting, acceleration coasting, parking coasting, etc. The braking stage includes but is not limited to emergency braking, speed control braking, brake braking, etc.

[0042] Classification based on vehicle load conditions: operating conditions include no-load, full-load, overload, etc. Optionally, each vehicle has a corresponding rated load, and the vehicle is considered to be fully loaded when the actual load weight of the vehicle is equal to the rated load, and the vehicle is considered to be overloaded when the actual load weight of the vehicle is greater than the rated load.

[0043] It is divided according to the environmental conditions in which the vehicle is located: operating conditions include high temperature and low temperature.

[0044] It is divided according to the road conditions on which the vehicle is located: operating conditions include flat roads, curves, mountain roads, etc.

[0045] Divided by vehicle internal components: The operating conditions are used to indicate the corresponding working status of each internal component in the vehicle, including component data collected by the internal components and the component working status.

[0046] In the embodiment of the present application, the operating conditions include the movement form of the vehicle, the environmental conditions of the vehicle, the road conditions of the vehicle, and the corresponding working state of the turbocharger. For example, the operating condition of the vehicle is the working state of the turbocharger when it is in the acceleration stage on a mountain road. This is only an illustrative example. The operating conditions of the vehicle can also be freely combined based on the above content to observe the corresponding working states of various components in the vehicle.

[0047] Optionally, the turbocharger includes a compressor and an exhaust gas turbine connected coaxially, and an exhaust gas bypass valve is provided at the exhaust gas turbine. The exhaust gas turbine rotates under the impetus of the high-temperature and pressured exhaust gas discharged from the vehicle engine, thereby driving the compressor to rotate through the rotating shaft to achieve the purpose of compressing air and increasing the intake pressure.

[0048] When the intake flow rate of the compressor in the turbocharger decreases, the gas velocity in the channel will be uneven and backflow will occur, causing the compressor to enter an unstable working state, and then the air flow rate will fluctuate and the pressure value will fluctuate violently. The turbocharger is accompanied by violent vibration of the compressor, and high-frequency noise (such as hissing roar, which is called high-frequency Hiss noise in this field) will appear.

[0049] The phenomenon in which the turbocharger vibrates violently and emits high-frequency Hiss noise is called surge.

[0050] When a turbocharger surges, on the one hand, it will accelerate the fatigue damage of internal parts such as the compressor blades and rapidly expand existing cracks, which may even cause damage to the compressor in severe cases. On the other hand, the turbocharger emits high-frequency Hiss noise, which brings a negative experience to the driver and passengers of the vehicle.

[0051] Step 201, determining a surge line corresponding to a turbocharger.

[0052] Optionally, the working state corresponding to the turbocharger is obtained, and the working state includes but is not limited to the real-time speed of the turbocharger, the compressor pressure ratio, the compressor flow rate, etc.

[0053] The boost characteristic curve corresponding to the turbocharger is determined. The boost characteristic curve is used to characterize the relationship between the gas flow rate and the pressure ratio in the compressor, that is, the boost characteristic curve is used to characterize the compressor flow characteristics.

[0054] The boost characteristic curve is marked with a surge line and a blockage line. Based on the above content, it can be known that the surge line is used to characterize the air flow oscillation phenomenon occurring along the compressor axis. In this field, the surge line can be regarded as a critical state of the turbocharger operation.

[0055] The blockage line is used to indicate the state of turbocharger inlet or outlet being blocked.

[0056] The surge line and the choke line are used to help determine the safe and efficient operating range of the turbocharger.

[0057] Optionally, the boost characteristic curve displays an efficiency region of the turbocharger, where the efficiency region is used to indicate the efficiency performance of the turbocharger under different operating conditions.

[0058] Optionally, the pressure value and gas flow rate in the front and rear pipelines of the compressor are obtained. The front and rear pipelines are used to indicate the outlet pipeline and the inlet pipeline of the compressor.

[0059] In schematic form, the outlet pressure value and outlet gas flow rate corresponding to the compressor outlet pipeline are obtained, or the inlet pressure value and inlet gas flow rate corresponding to the compressor inlet pipeline are obtained.

[0060] The ratio between the outlet pressure value and the inlet pressure value is determined to obtain a first ratio, which can be understood as a pressure increase ratio.

[0061] Determine the minimum and maximum values ​​of the inlet and outlet gas flows.

[0062] A gas flow range is generated based on the maximum and minimum values ​​of the gas flow.

[0063] Based on the gas flow rate range, determine the corresponding pressure increase ratio under different gas flow rates.

[0064] According to the corresponding relationship between gas flow rate and pressure ratio, a pressure boost characteristic curve is drawn and generated.

[0065] Schematically, the horizontal axis of the supercharging characteristic curve is used to represent the gas flow rate, and the vertical axis of the supercharging characteristic curve is used to represent the supercharging ratio.

[0066] Step 202, when the operating condition and the surge line meet the preset relationship, adjust the first opening and closing angle of the wastegate valve, or adjust the second opening and closing angle corresponding to the power pedal in the vehicle.

[0067] Optionally, the preset relationship refers to the turbocharger surging under this operating condition.

[0068] When it is determined that the turbocharger is about to surge, the first opening and closing angle of the abandoned bypass valve is adjusted, or the opening and closing angle corresponding to the power pedal in the vehicle is adjusted, so as to avoid the turbocharger from surging, reduce the generation of high-frequency Hiss noise, and to a certain extent prolong the service life of the turbocharger and improve the driving comfort of the driver (and passengers).

[0069] In an optional embodiment, a boost characteristic curve corresponding to the turbocharger is obtained, a surge line is marked in the boost characteristic curve, and a target area corresponding to the surge line is determined, and the target area is used to indicate an area where the turbocharger surge phenomenon occurs. The target area and the surge line have a preset position relationship, and the preset position relationship can be referred to in the following introduction.

[0070] The method for determining the surge line includes but is not limited to one of the following methods.

[0071] The first method is to determine the boundary line in the boost characteristic curve as the surge line.

[0072] The second method is to determine the maximum value corresponding to each curve in the boost characteristic curve, and connect the maximum values ​​corresponding to each curve in series to form a surge line, wherein the maximum value refers to the maximum value of the gas flow corresponding to the curve.

[0073] The third method is to determine the gas flow rate corresponding to the gas flow entering the compressor, square the gas flow rate to obtain the volume flow value, multiply the volume flow value by a constant (set by the relevant personnel) to determine the surge critical flow value. When the gas flow entering the compressor is less than the surge critical flow value, the turbocharger surges. Therefore, a curve that intersects with the surge critical flow value is determined in the boost characteristic curve. This curve is determined as the surge line.

[0074] After the surge line is determined by any of the above methods, the area above the surge line and the area between the positive direction of the vertical axis of the boost characteristic curve are regarded as the target area. In this case, the surge line is at the boundary position of the target area.

[0075] In another optional embodiment, after determining the curve corresponding to the surge line, an area within a preset distance range from the curve corresponding to the surge line is determined in the boost characteristic curve, and the area is regarded as the target area. In this case, the surge line is at the center of the target area.

[0076] In response to the operating condition existing in the target area, a first opening and closing angle of the wastegate valve is adjusted, or a second opening and closing angle corresponding to the power pedal is adjusted.

[0077] Optionally, in response to the operating condition existing in the target area, the first opening and closing angle and the second opening and closing angle are adjusted simultaneously.

[0078] The process of adjusting the first opening and closing angle is described in detail as follows.

[0079] The turbocharger also includes an actuator, which is considered a wastegate actuator.

[0080] The actuator adjusts the turbocharger's boost pressure by controlling the opening and closing of the wastegate valve. When the boost pressure reaches a predetermined value, the actuator pushes the connecting rod to open the bypass valve on the exhaust side of the turbocharger, and some exhaust gas is discharged directly to the exhaust pipe without passing through the impeller inside the turbocharger, thereby reducing the exhaust gas flow that drives the impeller, reducing the impeller speed, and thus controlling the boost pressure.

[0081] Optionally, the first opening and closing angle is adjusted by adjusting the rotation angle of the output shaft of the actuator. There is a correlation between the rotation angle and the first opening and closing angle. Schematically, the larger the absolute value of the rotation angle is, the larger the angle of adjusting the first opening and closing angle is.

[0082] In an optional embodiment, there is a rotation angle threshold for the rotation angle, and in response to the absolute value corresponding to the rotation angle of the output shaft exceeding the rotation angle threshold, the first opening and closing angle of the waste bypass valve is reduced. Schematically, the rotation angle threshold is 40°, and when the rotation angle of the output shaft of the actuator is 40°, the first opening and closing angle of the waste bypass valve also increases to 60°, and when the rotation angle of the output shaft of the actuator continues to increase to 60°, the first opening and closing angle of the waste bypass valve is reduced from 60° to 50°.

[0083] Optionally, in response to the absolute value corresponding to the rotation angle of the output shaft exceeding the rotation angle threshold, the first opening and closing angle of the waste bypass valve is reduced according to the angle excess value, wherein the excess value refers to the difference between the absolute value of the rotation angle and the rotation angle threshold. Schematically, the rotation angle threshold is 40°, when the rotation angle of the output shaft of the actuator is 40°, the first opening and closing angle of the waste bypass valve also increases to 60°, when the rotation angle of the output shaft of the actuator continues to increase to 60°, the excess value is 20° (the difference between 60° and 40°), and the first opening and closing angle of the waste bypass valve is reduced from 60° to 40°.

[0084] The process of adjusting the first opening and closing angle by adjusting the rotation angle of the output shaft of the actuator is described in detail as follows.

[0085] By adjusting the input voltage of the actuator, the rotation angle of the output shaft of the actuator is controlled, wherein there is a correlation between the input voltage and the rotation angle. Schematically, the greater the input voltage, the greater the absolute value of the corresponding rotation angle.

[0086] In an embodiment of the present application, when the operating condition and the surge line meet a preset relationship, the first opening and closing angle of the wastegate valve is reduced, or the second opening and closing angle of the power pedal is increased.

[0087] In the embodiment of the present application, when it is determined that the turbocharger in the vehicle is surging, the opening and closing angles of the abandoned bypass valve or the power pedal are adjusted to keep the corresponding operating conditions of the vehicle away from the surge line so that the turbocharger is in a normal working state, thereby avoiding the high-frequency Hiss noise emitted by the turbocharger and bringing a negative driving experience to the driver. On the other hand, without adding additional noise reduction devices to the turbocharger, the purpose of protecting the turbocharger can be achieved by adjusting the opening and closing angles of the internal components of the vehicle, thereby reducing the manufacturing cost of the vehicle to a certain extent.

[0088] In combination with the above description, the content of adjusting the first opening and closing angle involved in the above step 202 is further described in detail. Figure 3 1 is a flow chart of adjusting the first opening and closing angle of the waste bypass valve provided by an exemplary embodiment of the present application, and is described by applying the method to a vehicle. Figure 3 As shown, the method includes:

[0089] Step 300, when the operating condition and the surge line meet a preset relationship, determine the target intake volume of the engine under the operating condition of the vehicle.

[0090] Optionally, the preset relationship refers to the turbocharger surging under this operating condition.

[0091] When it is determined that the turbocharger is about to surge, the first opening and closing angle of the abandoned bypass valve is adjusted to avoid the turbocharger from surging, reduce the generation of high-frequency Hiss noise, and to a certain extent extend the service life of the turbocharger and improve the driving comfort of the driver.

[0092] In an optional embodiment, a boost characteristic curve corresponding to the turbocharger is obtained, the boost characteristic curve is marked with a surge line, and a target area corresponding to the surge line is determined, the target area is used to indicate an area where the turbocharger surge phenomenon occurs.

[0093] In response to the operating condition existing in the target area, a target intake air amount corresponding to the engine of the vehicle under the operating condition is determined.

[0094] The target intake volume refers to the amount of gas (which can be regarded as air) required by the engine for normal operation and combustion under the corresponding operating conditions of the vehicle.

[0095] The target intake air amount depends on at least one of engine load, engine speed, combustion efficiency, engine design, environmental conditions, and the like.

[0096] Engine load refers to the power or torque output by the engine. The greater the engine load, the greater the target intake volume.

[0097] The higher the engine speed, the more gas is drawn in per cycle.

[0098] Combustion efficiency refers to the ratio of gas to combustion, also known as the air-fuel ratio.

[0099] Engine design refers to different engine designs, including but not limited to: displacement size, number of cylinders, compression ratio, etc.

[0100] Environmental conditions refer to atmospheric pressure and temperature. Under different atmospheric pressures and temperatures, the density of gas (air) is different, which affects the target air intake volume.

[0101] In an optional embodiment, the air-fuel ratio, operating power and fuel consumption information of the engine are obtained, wherein the air-fuel ratio is used to indicate the mixing ratio of air and fuel in the combustion chamber of the engine, the operating power is used to indicate the power generated by the engine within a preset time, and the fuel consumption information is used to indicate the amount of fuel consumed by the engine within a preset time, where the preset time is a unit of time, which can be at least one of per minute, per second, per hour, etc.

[0102] The target intake air volume is determined based on the air-fuel ratio, operating power, and fuel consumption information.

[0103] Step 301: determine a target speed corresponding to the turbocharger based on the target intake air volume.

[0104] Optionally, a preset table is obtained, in which a corresponding relationship between a target air intake volume and a target rotational speed is stored, that is, different target air intake volumes correspond to different target rotational speeds.

[0105] Schematically, the target air intake volume in the preset table is a specific value, and different target speeds are allocated according to the specific values, such as: the target air intake volume a corresponds to the target speed b.

[0106] Indicatively, the target air intake volume in the preset table is a range, and different target speeds are allocated according to the range. The range to which the target air intake volume belongs is determined, and the target speed corresponding to the range is determined as the target speed corresponding to the target air intake volume. For example, the stage range of the target air intake volume a is range 1, and the target speed corresponding to range 1 is b, and the target speed b is determined as the target speed corresponding to the target air intake volume a.

[0107] Optionally, the compressor pressure ratio of the engine is obtained. The compressor pressure ratio is used to describe the change process of gas pressure during the compression process.

[0108] Schematically, a first pressure value, a first temperature value and a first air flow rate corresponding to the air before the engine compresses the air within a preset time period are obtained; a second pressure value, a second temperature value and a second air flow rate corresponding to the air after the engine compresses the air within the preset time period are obtained.

[0109] A compressor pressure ratio of the engine is determined based on the first pressure value, the first temperature value, the first air flow rate, the second pressure value, the second temperature value, and the second air flow rate.

[0110] Illustratively, the first pressure value is processed according to the first weight coefficient to obtain the third pressure value, and the second pressure value is processed according to the second weight coefficient to obtain the fourth pressure value.

[0111] Obtain a temperature coefficient table and an air flow coefficient table. The temperature system table records the corresponding relationship between the temperature value and the conversion coefficient, and the air flow coefficient table records the corresponding relationship between the air flow value and the conversion coefficient.

[0112] A first coefficient corresponding to the first temperature value is determined from the temperature coefficient table, and a second coefficient corresponding to the second temperature value is determined.

[0113] A third coefficient corresponding to the first air flow rate is determined from the air flow coefficient table, and a fourth coefficient corresponding to the second air flow rate is determined.

[0114] The third pressure value is processed based on the first coefficient and the third coefficient to obtain a fifth pressure value.

[0115] The fourth pressure value is processed based on the second coefficient and the fourth coefficient to obtain a sixth pressure value.

[0116] A ratio between the fifth pressure value and the sixth pressure value is determined as the compressor pressure ratio.

[0117] Step 302: adjusting a first opening and closing angle of the wastegate valve based on the target speed, and controlling the turbocharger to rotate at the target speed.

[0118] In the embodiment of the present application, there is a preset relationship between the rotation speed of the turbocharger and the first opening and closing angle of the waste bypass valve. Schematically, the faster the rotation speed, the larger the first opening and closing angle of the waste bypass valve, and vice versa. In other words, the waste bypass valve is adjusted to different openings so that the turbocharger runs at different speeds.

[0119] After determining that the turbocharger has a surge phenomenon, the first opening and closing angle of the wastegate valve is reduced, and the turbocharger is controlled to rotate at a target speed.

[0120] In the embodiment of the present application, when it is determined that the turbocharger in the vehicle is surging, the opening and closing angles of the abandoned bypass valve or the power pedal are adjusted to keep the corresponding operating conditions of the vehicle away from the surge line so that the turbocharger is in a normal working state, thereby avoiding the high-frequency Hiss noise emitted by the turbocharger and bringing a negative driving experience to the driver. On the other hand, without adding additional noise reduction devices to the turbocharger, the purpose of protecting the turbocharger can be achieved by adjusting the opening and closing angles of the internal components of the vehicle, thereby reducing the manufacturing cost of the vehicle to a certain extent.

[0121] Combination Figure 4 , a control method of a turbocharger involved in an embodiment of the present application is described, Figure 3 is a flow chart of a method for controlling a turbocharger provided by an exemplary embodiment of the present application. Figure 3 As shown, the method includes:

[0122] Step 400, determining the driving condition corresponding to the vehicle.

[0123] Optionally, the operating condition refers to the working state of the internal components of the vehicle during driving. The internal components include but are not limited to a turbocharger, a power pedal, sensors arranged at various positions of the vehicle, tires, etc. In the embodiment of the present application, the operating condition includes the working state of the turbocharger.

[0124] In an optional embodiment, the operating condition is also used to indicate the working state of the vehicle during driving. The operating condition is divided according to the vehicle's movement form, the driving user's control mode, the vehicle's load condition, the vehicle's environmental conditions, the vehicle's road conditions, etc.

[0125] Step 401: When the driving condition of the vehicle is in the target area corresponding to the surge line, the first opening and closing angle of the wastegate valve is controlled to decrease.

[0126] The working state corresponding to the turbocharger is obtained, and the working state includes but is not limited to the real-time speed of the turbocharger, the compressor pressure ratio, the compressor flow rate, etc.

[0127] The boost characteristic curve corresponding to the turbocharger is determined. The boost characteristic curve is used to characterize the relationship between the gas flow rate and the pressure ratio in the compressor, that is, the boost characteristic curve is used to characterize the compressor flow characteristics.

[0128] The supercharging characteristic curve is marked with a surge line, which is used to characterize the air flow oscillation phenomenon occurring along the compressor axis. In the art, the surge line can be regarded as a critical state of the turbocharger operation.

[0129] In an optional embodiment, a boost characteristic curve corresponding to the turbocharger is obtained, the boost characteristic curve is marked with a surge line, and a target area corresponding to the surge line is determined, the target area is used to indicate an area where the turbocharger surge phenomenon occurs.

[0130] In response to the operating condition being within the target region, the first opening and closing angle of the wastegate valve is reduced.

[0131] The specific process of determining the first opening and closing angle may be referred to in the above step 202 and step 300 to step 302, which will not be described in detail here.

[0132] Step 402: When the driving condition of the vehicle is in the target area corresponding to the surge line, the second opening and closing angle of the power pedal is controlled to increase.

[0133] Optionally, it is determined that the turbocharger of the vehicle will experience surge under this driving condition, and the second opening and closing angle of the power pedal is increased.

[0134] The second opening and closing angle is used to indicate the position of the power pedal, which refers to the relative position of the power pressure plate from fully closed (0%) to fully open (100%). Schematically, the angle formed between the power pressure plates in the vehicle's current power pedal is 30°. When the turbocharger surges, the angle between the power pressure plates is increased from 30° to 50°.

[0135] In the embodiment of the present application, the second opening and closing angle affects the air intake amount and fuel supply amount of the engine.

[0136] In order to avoid turbocharger surge, the angle between the power pressure plates in the power pedal is increased while increasing the engine's air intake. When the engine's air intake increases, the fuel supply also increases, further improving the fuel combustion (conversion) efficiency, thereby reducing exhaust emissions. When exhaust emissions are reduced, the gas flow entering the turbocharger also decreases, effectively reducing the exhaust gas conversion volume of the turbocharger, and avoiding the increase in gas flow in the turbocharger, which increases the disturbance of internal components during operation, thereby causing surge.

[0137] In another optional embodiment, a target speed of the turbocharger is determined, and the turbocharger is operated at the target speed by controlling the second opening and closing angle of the power pedal.

[0138] Schematically, the target speed k corresponding to the turbocharger is determined. At this time, the second opening and closing angle of the power pedal is increased from 30° to 40°. However, when the second opening and closing angle of the power pedal is at 40°, the speed of the turbocharger is less than the target speed. The second opening and closing angle of the power pedal is further increased to 50°. When the second opening and closing angle of the power pedal is at 50°, the speed of the turbocharger reaches the target speed.

[0139] In the embodiment of the present application, when it is determined that the turbocharger in the vehicle is surging, the opening and closing angles of the abandoned bypass valve or the power pedal are adjusted to keep the corresponding operating conditions of the vehicle away from the surge line so that the turbocharger is in a normal working state, thereby avoiding the high-frequency Hiss noise emitted by the turbocharger and bringing a negative driving experience to the driver. On the other hand, without adding additional noise reduction devices to the turbocharger, the purpose of protecting the turbocharger can be achieved by adjusting the opening and closing angles of the internal components of the vehicle, thereby reducing the manufacturing cost of the vehicle to a certain extent.

[0140] See also Figure 5 , which shows a structural block diagram of a control device for a turbocharger provided by an exemplary embodiment of the present application. The device includes the following contents.

[0141] An acquisition module 500 is used to acquire an operating condition corresponding to the vehicle, wherein the operating condition is used to indicate the operating state of internal components of the vehicle during driving, and the operating condition includes the operating state of the turbocharger, and the turbocharger includes a compressor and a wastegate valve;

[0142] A determination module 501 is used to determine a surge line corresponding to the turbocharger, wherein the surge line is used to characterize the airflow oscillation phenomenon of the gas along the axis direction of the compressor, and the surge line is determined from a boost characteristic curve, wherein the boost characteristic curve is used to characterize the relationship between the gas flow rate and the boost ratio in the compressor;

[0143] The adjustment module 502 is used to adjust the first opening and closing angle of the wastegate valve, or adjust the second opening and closing angle corresponding to the vehicle power pedal, when the operating condition and the surge line meet a preset relationship.

[0144] In an optional embodiment, the determination module 501 is used to determine a target area in the boost characteristic curve corresponding to the surge line, and a preset position relationship between the target area and the surge line is met;

[0145] The adjustment module 502 is configured to adjust the first opening and closing angle, or adjust the second opening and closing angle, in response to the operating condition existing in the target area.

[0146] In an optional embodiment, the turbocharger further includes an actuator;

[0147] The adjustment module 502 is used to adjust the first opening and closing angle by adjusting the rotation angle of the output shaft of the actuator; wherein there is a correlation between the rotation angle and the first opening and closing angle.

[0148] In an optional embodiment, the adjustment module 502 is used to control the rotation angle of the output shaft of the actuator by adjusting the input voltage of the actuator, and there is a correlation between the input voltage and the rotation angle;

[0149] The adjustment module 502 is used to adjust the first opening and closing angle by adjusting the rotation angle of the output shaft of the actuator.

[0150] In an optional embodiment, the determination module 501 is used to determine the target intake volume corresponding to the engine of the vehicle under the operating condition when the operating condition and the surge line meet a preset relationship;

[0151] The determination module 501 is used to determine a target speed corresponding to the turbocharger based on the target intake air amount;

[0152] The adjustment module 502 is configured to adjust the first opening and closing angle of the waste bypass valve based on the target speed, so as to control the turbocharger to rotate at the target speed.

[0153] In an optional embodiment, the acquisition module 500 is used to acquire the air-fuel ratio, operating power and fuel consumption information of the engine, wherein the air-fuel ratio is used to indicate the mixing ratio of air and fuel in the combustion chamber of the engine, the operating power is used to indicate the power generated by the engine within a preset time, and the fuel consumption information is used to indicate the amount of fuel consumed by the engine within the preset time;

[0154] The determination module 501 is used to determine the target intake air amount based on the air-fuel ratio, the operating power and the fuel consumption information;

[0155] The acquisition module 500 is used to acquire the compressor pressure ratio of the engine, and the compressor pressure ratio is used to describe the change process of gas pressure during the compression process;

[0156] The determination module 501 is used to determine the target based on the compressor pressure ratio and the target intake air volume.

[0157] In an optional embodiment, a first pressure value, a first temperature value, and a first air flow rate corresponding to the air before compression by the engine within a preset time period are obtained;

[0158] The acquisition module 500 is used to acquire a second pressure value, a second temperature value and a second air flow rate corresponding to the air compressed by the engine within a preset time period;

[0159] The determining module 501 is configured to process the first pressure value according to a first weight coefficient to obtain a third pressure value, and to process the second pressure value according to a second weight coefficient to obtain a fourth pressure value;

[0160] The acquisition module 500 is used to acquire a temperature coefficient table and an air flow coefficient table, wherein the temperature system table records the corresponding relationship between the temperature value and the conversion coefficient, and the air flow coefficient table records the corresponding relationship between the air flow value and the conversion coefficient;

[0161] The determining module 501 is used to determine the first coefficient corresponding to the first temperature value from the temperature coefficient table, and to determine the second coefficient corresponding to the second temperature value;

[0162] The determination module 501 is used to determine a third coefficient corresponding to the first air flow rate from the air flow coefficient table, and to determine a fourth coefficient corresponding to the second air flow rate;

[0163] The determining module 501 is configured to process the third pressure value based on the first coefficient and the third coefficient to obtain a fifth pressure value;

[0164] The determining module 501 is configured to process the fourth pressure value based on the second coefficient and the fourth coefficient to obtain a sixth pressure value;

[0165] The determination module 501 is used to determine the ratio between the fifth pressure value and the sixth pressure value as the compressor pressure ratio.

[0166] In the device provided in the embodiment of the present application, when it is determined that the turbocharger in the vehicle is surging, by adjusting the opening and closing angle of the abandoned bypass valve or the power pedal, the corresponding operating condition of the vehicle is kept away from the surge line so that the turbocharger is in a normal working state, and the high-frequency Hiss noise emitted by the turbocharger is avoided to bring a negative driving experience to the driver. On the other hand, without adding an additional noise reduction device to the turbocharger, the purpose of protecting the turbocharger can be achieved by adjusting the opening and closing angles of the internal components of the vehicle, thereby reducing the manufacturing cost of the vehicle to a certain extent.

[0167] It should be noted that the control device for the turbocharger provided in the above embodiment is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the control device for the turbocharger provided in the above embodiment and the control method embodiment of the turbocharger belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0168] Figure 6 The block diagram of the structure of a computer device 600 provided by an exemplary embodiment of the present application is shown. The computer device 600 may be a portable mobile terminal, such as a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III), an MP4 player (Moving Picture Experts Group Audio Layer IV), a laptop computer or a desktop computer. The computer device 600 may also be referred to as a user device, a portable terminal, a laptop terminal, a desktop terminal or other names. Optionally, the computer device 600 may also be implemented as a movable device, such as a movable intelligent terminal such as a vehicle-mounted terminal.

[0169] Typically, the computer device 600 includes a processor 601 and a memory 602 .

[0170] The processor 601 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 601 may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The processor 601 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 601 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 601 may also include an AI (Artificial Intelligence) processor, which is used to process computing operations related to machine learning.

[0171] The memory 602 may include one or more computer-readable storage media, which may be non-transitory. The memory 602 may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory 602 is used to store at least one instruction, which is used to be executed by the processor 601 to implement the model training method or behavior coding method provided in the method embodiment of the present application.

[0172] In some embodiments, the computer device 600 may also optionally include: a peripheral device interface 603 and at least one peripheral device. The processor 601, the memory 602 and the peripheral device interface 603 may be connected via a bus or a signal line. Each peripheral device may be connected to the peripheral device interface 603 via a bus, a signal line or a circuit board. For example, the peripheral device may include: at least one of a radio frequency circuit 604, a display screen 605, a camera assembly 606, an audio circuit 607, a positioning assembly 615 and a power supply 608.

[0173] The peripheral device interface 603 may be used to connect at least one peripheral device related to I / O (Input / Output) to the processor 601 and the memory 602. In some embodiments, the processor 601, the memory 602, and the peripheral device interface 603 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 601, the memory 602, and the peripheral device interface 603 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.

[0174] The radio frequency circuit 604 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuit 604 communicates with the communication network and other communication devices through electromagnetic signals. The radio frequency circuit 604 converts the electrical signal into an electromagnetic signal for transmission, or converts the received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 604 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a user identity module card, etc. The radio frequency circuit 604 can communicate with other terminals through at least one wireless communication protocol. The wireless communication protocol includes but is not limited to: the World Wide Web, a metropolitan area network, an intranet, various generations of mobile communication networks (2G, 3G, 4G and 5G), a wireless local area network and / or a WiFi (Wireless Fidelity) network. In some embodiments, the radio frequency circuit 604 may also include circuits related to NFC (Near Field Communication), which is not limited in this application.

[0175] The display screen 605 is used to display the UI (User Interface). The UI may include graphics, text, icons, videos, and any combination thereof. When the display screen 605 is a touch display screen, the display screen 605 also has the ability to collect touch signals on the surface or above the surface of the display screen 605. The touch signal can be input to the processor 601 as a control signal for processing. At this time, the display screen 605 can also be used to provide virtual buttons and / or virtual keyboards, also known as soft buttons and / or soft keyboards. In some embodiments, the display screen 605 can be one, set on the front panel of the computer device 600; in other embodiments, the display screen 605 can be at least two, respectively set on different surfaces of the computer device 600 or in a folding design; in other embodiments, the display screen 605 can be a flexible display screen, set on the curved surface or folding surface of the computer device 600. Even, the display screen 605 can also be set to a non-rectangular irregular shape, that is, a special-shaped screen. The display screen 605 can be made of materials such as LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode, organic light-emitting diode).

[0176] The camera assembly 606 is used to capture images or videos. Optionally, the camera assembly 606 includes a front camera and a rear camera. Typically, the front camera is arranged on the front panel of the terminal, and the rear camera is arranged on the back of the terminal. In some embodiments, there are at least two rear cameras, which are any one of a main camera, a depth of field camera, a wide-angle camera, and a telephoto camera, so as to realize the fusion of the main camera and the depth of field camera to realize the background blur function, the fusion of the main camera and the wide-angle camera to realize the panoramic shooting and VR (Virtual Reality) shooting function or other fusion shooting functions. In some embodiments, the camera assembly 606 may also include a flash. The flash can be a monochrome temperature flash or a dual-color temperature flash. A dual-color temperature flash refers to a combination of a warm light flash and a cold light flash, which can be used for light compensation at different color temperatures.

[0177] The audio circuit 607 may include a microphone and a speaker. The microphone is used to collect sound waves from the user and the environment, and convert the sound waves into electrical signals and input them into the processor 601 for processing, or input them into the radio frequency circuit 604 to achieve voice communication. For the purpose of stereo acquisition or noise reduction, there may be multiple microphones, which are respectively arranged at different parts of the computer device 600. The microphone may also be an array microphone or an omnidirectional acquisition microphone. The speaker is used to convert the electrical signal from the processor 601 or the radio frequency circuit 604 into sound waves. The speaker may be a traditional film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, it can not only convert the electrical signal into sound waves audible to humans, but also convert the electrical signal into sound waves inaudible to humans for purposes such as ranging. In some embodiments, the audio circuit 607 may also include a headphone jack.

[0178] The positioning component 615 is used to locate the current geographical location of the computing and device 600 to implement navigation or LBS (Location Based Service). The positioning component 908 can be a positioning component based on the US GPS (Global Positioning System) or China's Beidou system.

[0179] The power supply 608 is used to power various components in the computer device 600. The power supply 608 can be an alternating current, a direct current, a disposable battery, or a rechargeable battery. When the power supply 608 includes a rechargeable battery, the rechargeable battery can be a wired rechargeable battery or a wireless rechargeable battery. A wired rechargeable battery is a battery that is charged through a wired line, and a wireless rechargeable battery is a battery that is charged through a wireless coil. The rechargeable battery can also be used to support fast charging technology.

[0180] In some embodiments, the computer device 600 further includes one or more sensors 609 , including but not limited to: an acceleration sensor 610 , a gyroscope sensor 611 , a pressure sensor 612 , an optical sensor 613 , and a proximity sensor 614 .

[0181] The acceleration sensor 610 can detect the magnitude of acceleration on the three coordinate axes of the coordinate system established by the computer device 600. For example, the acceleration sensor 610 can be used to detect the components of gravity acceleration on the three coordinate axes. The processor 601 can control the display screen 605 to display the user interface in a horizontal view or a vertical view according to the gravity acceleration signal collected by the acceleration sensor 610. The acceleration sensor 610 can also be used to collect game or user motion data.

[0182] The gyro sensor 611 can detect the body direction and rotation angle of the computer device 600, and the gyro sensor 611 can cooperate with the acceleration sensor 610 to collect the user's 3D actions on the computer device 600. The processor 601 can implement the following functions based on the data collected by the gyro sensor 611: motion sensing (such as changing the UI according to the user's tilt operation), image stabilization during shooting, game control, and inertial navigation.

[0183] The pressure sensor 612 can be set on the side frame of the computer device 600 and / or the lower layer of the display screen 605. When the pressure sensor 612 is set on the side frame of the computer device 600, it can detect the user's grip signal of the computer device 600, and the processor 601 performs left and right hand recognition or shortcut operations according to the grip signal collected by the pressure sensor 612. When the pressure sensor 612 is set on the lower layer of the display screen 605, the processor 601 controls the operability controls on the UI interface according to the user's pressure operation on the display screen 605. The operability controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.

[0184] The optical sensor 613 is used to collect the ambient light intensity. In one embodiment, the processor 601 can control the display brightness of the display screen 605 according to the ambient light intensity collected by the optical sensor 613. For example, when the ambient light intensity is high, the display brightness of the display screen 605 is increased; when the ambient light intensity is low, the display brightness of the display screen 605 is reduced. In another embodiment, the processor 601 can also dynamically adjust the shooting parameters of the camera assembly 606 according to the ambient light intensity collected by the optical sensor 613.

[0185] The proximity sensor 614, also called a distance sensor, is usually disposed on the front panel of the computer device 600. The proximity sensor 614 is used to collect the distance between the user and the front of the computer device 600. In one embodiment, when the proximity sensor 614 detects that the distance between the user and the front of the computer device 600 is gradually decreasing, the processor 601 controls the display screen 605 to switch from the screen-on state to the screen-off state; when the proximity sensor 614 detects that the distance between the user and the front of the computer device 600 is gradually increasing, the processor 601 controls the display screen 605 to switch from the screen-off state to the screen-on state.

[0186] Those skilled in the art will understand that Figure 6 The structure shown in the figure does not constitute a limitation on the computer device 600, and the computer device 600 may include more or less components than those shown in the figure, or combine some components, or adopt a different arrangement of components.

[0187] The present application also provides a computer-readable storage medium, in which at least one instruction, at least one program, a code set or an instruction set is stored. The at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by a processor to implement the control method of the turbocharger provided in the above method embodiment.

[0188] The present application provides a computer program product or a computer program, which includes computer instructions 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 method of the turbocharger provided by the above method embodiment.

[0189] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0190] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for controlling a turbocharger, characterized in that: The method comprises: Acquire an operating condition corresponding to the vehicle, the operating condition being used to indicate the operating state of internal components of the vehicle during driving, the operating condition including the operating state of the turbocharger, the turbocharger including a compressor and a wastegate valve; Determine a surge line corresponding to the turbocharger, the surge line is used to characterize the airflow oscillation phenomenon of the gas along the axis direction of the compressor, the surge line is determined from a boost characteristic curve, the boost characteristic curve is used to characterize the relationship between the gas flow rate and the boost ratio in the compressor; When the operating condition and the surge line meet a preset relationship, the first opening and closing angle of the wastegate valve is adjusted, or the second opening and closing angle corresponding to the vehicle power pedal is adjusted.

2. The method according to claim 1, characterized in that When the operating condition and the surge line meet a preset relationship, adjusting the first opening and closing angle of the wastegate valve, or adjusting the second opening and closing angle corresponding to the power pedal in the vehicle, comprises: Determining a target area in the boost characteristic curve corresponding to the surge line, wherein the target area and the surge line have a preset position relationship; In response to the operating condition existing in the target area, the first opening and closing angle is adjusted, or the second opening and closing angle is adjusted.

3. The method according to claim 2, characterized in that The turbocharger further includes an actuator; The adjusting the first opening and closing angle includes: By adjusting the rotation angle of the output shaft of the actuator, the first opening and closing angle is adjusted; There is a correlation between the rotation angle and the first opening and closing angle.

4. The method according to claim 3, characterized in that The step of adjusting the first opening and closing angle by adjusting the rotation angle of the output shaft of the actuator comprises: By adjusting the input voltage of the actuator, the rotation angle of the output shaft of the actuator is controlled, and there is a correlation between the input voltage and the rotation angle; The first opening and closing angle is adjusted by adjusting the rotation angle of the output shaft of the actuator.

5. The method according to any one of claims 1 to 4, characterized in that: When the operating condition and the surge line meet a preset relationship, adjusting the first opening and closing angle of the wastegate valve comprises: When the operating condition and the surge line meet a preset relationship, determining a target intake volume corresponding to the engine of the vehicle under the operating condition; Based on the target intake air amount, determining a target speed corresponding to the turbocharger; The first opening / closing angle of the waste bypass valve is adjusted based on the target speed, and the turbocharger is controlled to rotate at the target speed.

6. The method according to claim 5, characterized in that The determining of the target air intake volume corresponding to the engine of the vehicle under the operating condition includes: Acquiring the air-fuel ratio, operating power and fuel consumption information of the engine, wherein the air-fuel ratio is used to indicate the mixing ratio of air and fuel in the combustion chamber of the engine, the operating power is used to indicate the power generated by the engine within a preset time, and the fuel consumption information is used to indicate the amount of fuel consumed by the engine within the preset time; determining the target intake air amount based on the air-fuel ratio, the operating power, and the fuel consumption information; The step of determining a target speed corresponding to the turbocharger based on the target intake air volume includes: Obtaining a compressor pressure ratio of the engine, wherein the compressor pressure ratio is used to describe a change in the pressure of a gas during a compression process; The target speed is determined based on the compressor pressure ratio and the target intake air amount.

7. The method according to claim 6, characterized in that The obtaining of the compressor pressure ratio of the engine comprises: Obtaining a first pressure value, a first temperature value, and a first air flow rate corresponding to the pre-compression air of the engine within a preset time period; Obtaining a second pressure value, a second temperature value, and a second air flow rate corresponding to the air compressed by the engine within a preset time period; Processing the first pressure value according to a first weight coefficient to obtain a third pressure value, and processing the second pressure value according to a second weight coefficient to obtain a fourth pressure value; Obtaining a temperature coefficient table and an air flow coefficient table, wherein the temperature system table records the corresponding relationship between the temperature value and the conversion coefficient, and the air flow coefficient table records the corresponding relationship between the air flow value and the conversion coefficient; Determine a first coefficient corresponding to the first temperature value from the temperature coefficient table, and determine a second coefficient corresponding to the second temperature value; Determining a third coefficient corresponding to the first air flow rate from the air flow coefficient table, and determining a fourth coefficient corresponding to the second air flow rate; Processing the third pressure value based on the first coefficient and the third coefficient to obtain a fifth pressure value; Processing the fourth pressure value based on the second coefficient and the fourth coefficient to obtain a sixth pressure value; A ratio between the fifth pressure value and the sixth pressure value is determined as the compressor pressure ratio.

8. A control device for a turbocharger, characterized in that: The device also includes: an acquisition module, used for acquiring an operating condition corresponding to the vehicle, wherein the operating condition is used for indicating the operating state of internal components of the vehicle during driving, wherein the operating condition includes the operating state of the turbocharger, and the turbocharger includes a compressor and a wastegate valve; a determination module, configured to determine a surge line corresponding to the turbocharger, wherein the surge line is used to characterize the airflow oscillation phenomenon of the gas along the axis direction of the compressor, and the surge line is determined from a boost characteristic curve, wherein the boost characteristic curve is used to characterize the relationship between the gas flow rate and the boost ratio in the compressor; The adjustment module is used to adjust the first opening and closing angle of the wastegate valve when the operating condition and the surge line meet a preset relationship, or to adjust the second opening and closing angle corresponding to the power pedal in the vehicle.

9. A computer device, characterized in that: The computer device includes a processor and a memory, wherein at least one program is stored in the memory, and the at least one program is loaded and executed by the processor to implement the control method of the turbocharger according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: At least one program is stored in the storage medium, and the at least one program is loaded and executed by the processor to implement the turbocharger control method according to any one of claims 1 to 7.

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