Control method and device for power generation equipment, power generation equipment, vehicle

Abstract

The application discloses a kind of control method and device of power generation equipment, power generation equipment, vehicle, wherein, power generation equipment includes impeller, impeller is arranged in exhaust pipe, one end of exhaust pipe is connected engine, the control method of power generation equipment includes: obtaining the speed of engine and the internal pressure of exhaust pipe;According to the speed of engine and the internal pressure of exhaust pipe determines the target exhaust back pressure of engine;According to the target exhaust back pressure of engine, the speed of impeller is controlled, to adjust the exhaust back pressure of engine. Thus, the speed of impeller can be controlled according to the target exhaust back pressure of engine to adjust the exhaust back pressure of engine, and then the exhaust energy can be fully utilized to promote the rotation of generator impeller, ensure that the energy of vehicle exhaust is recycled and utilized, and improve the power performance of engine.

Description

Technical Field

[0001] This invention relates to the field of vehicle power generation equipment technology, and in particular to a control method for power generation equipment, a control device for power generation equipment, a power generation equipment, and a vehicle. Background Technology

[0002] Currently, energy exists in vehicle exhaust. In order to recover and reuse this energy, related technologies generally install an exhaust generator in the vehicle's exhaust pipe. The exhaust generator usually adds an impeller in the exhaust pipe to drive the generator to generate electricity. However, the exhaust generator in related technologies is not adjustable, which means that the exhaust back pressure in the exhaust pipe cannot be adjusted, and it will also cause frequent fluctuations in the exhaust back pressure, affecting the engine's power. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, the first objective of this invention is to provide a control method for power generation equipment that not only ensures the recovery and reuse of vehicle exhaust gases but also improves the engine's power performance.

[0004] The second objective of this invention is to provide a control device for a power generation equipment.

[0005] The third objective of this invention is to provide a power generation device.

[0006] The fourth objective of this invention is to provide a vehicle.

[0007] To achieve the above objectives, a first aspect of the present invention provides a control method for a power generation device, wherein the power generation device includes an impeller disposed within an exhaust pipe, one end of the exhaust pipe being connected to an engine, and the control method includes: acquiring the engine speed and the internal pressure of the exhaust pipe; determining a target exhaust back pressure of the engine based on the engine speed and the internal pressure of the exhaust pipe; and controlling the impeller speed based on the target exhaust back pressure of the engine to adjust the exhaust back pressure of the engine.

[0008] According to the control method of the power generation equipment proposed in the embodiments of the present invention, the rotational speed of the impeller can be controlled according to the target exhaust back pressure of the engine, so as to adjust the exhaust back pressure of the engine, thereby making full use of the exhaust energy to drive the generator impeller to rotate, ensuring that the energy of the vehicle exhaust is recovered and utilized, and improving the power performance of the engine.

[0009] In addition, the control method for power generation equipment proposed in the above embodiments of the present invention may also have the following additional technical features:

[0010] According to one embodiment of the present invention, when the engine speed is less than or equal to a first preset speed, the speed of the impeller is controlled according to the target exhaust back pressure of the engine, including: if the target exhaust back pressure of the engine is greater than the internal pressure of the exhaust pipe, then the speed of the impeller is controlled to be in a first speed range.

[0011] According to one embodiment of the present invention, when the engine speed is greater than a first preset speed and less than or equal to a second preset speed, the speed of the impeller is controlled according to the target exhaust back pressure of the engine, including: if the target exhaust back pressure of the engine is equal to the internal pressure of the exhaust pipe, then the speed of the impeller is controlled to be in the second speed range.

[0012] According to one embodiment of the present invention, when the engine speed is greater than a second preset speed, the speed of the impeller is controlled according to the target exhaust back pressure of the engine, including: if the target exhaust back pressure of the engine is less than the internal pressure of the exhaust pipe, then the speed of the impeller is controlled to be in a third speed range.

[0013] According to one embodiment of the present invention, the power generation device includes a generator and a clutch, the generator being connected to the impeller via the clutch, and the control method further includes controlling the rotational speed of the impeller according to the target exhaust back pressure of the engine before controlling the rotational speed of the impeller.

[0014] According to one embodiment of the present invention, the control method further includes: acquiring the historical engine speed, the historical internal pressure of the exhaust pipe, and the historical target exhaust back pressure of the engine; and establishing the preset data model based on the historical engine speed, the historical internal pressure of the exhaust pipe, and the historical target exhaust back pressure of the engine.

[0015] According to one embodiment of the present invention, determining the target exhaust back pressure of the engine based on the engine speed and the internal pressure of the exhaust pipe includes: inputting the engine speed and the internal pressure of the exhaust pipe into the preset data model, and outputting the target exhaust back pressure of the engine after processing by the preset data model.

[0016] To achieve the above objectives, a second aspect of the present invention provides a control device for a power generation device, wherein the power generation device includes an impeller disposed within an exhaust pipe, one end of which is connected to an engine. The control device includes: an acquisition module for acquiring the engine speed and the internal pressure of the exhaust pipe; a determination module for determining a target exhaust back pressure of the engine based on the engine speed and the internal pressure of the exhaust pipe; and a control module for controlling the impeller speed based on the target exhaust back pressure of the engine to adjust the exhaust back pressure of the engine.

[0017] According to the control device of the power generation equipment proposed in the embodiments of the present invention, the rotational speed of the impeller can be controlled according to the target exhaust back pressure of the engine, so as to adjust the exhaust back pressure of the engine, thereby making full use of the exhaust energy to drive the generator impeller to rotate, ensuring that the energy of the vehicle exhaust is recovered and utilized, and improving the power performance of the engine.

[0018] To achieve the above objectives, a third aspect of the present invention provides a power generation device, which includes the control device of the power generation device described in the foregoing embodiments of the present invention.

[0019] According to the power generation equipment proposed in the embodiments of the present invention, by adopting the control device of the power generation equipment of the above embodiments of the present invention, the exhaust gas energy can be fully utilized to drive the generator impeller to rotate, ensuring that the energy of vehicle exhaust gas is recovered and utilized, and improving the power performance of the engine.

[0020] To achieve the above objectives, a fourth aspect of the present invention provides a vehicle that includes the power generation equipment described in the foregoing embodiments of the present invention.

[0021] According to the vehicle proposed in the embodiments of the present invention, by adopting the power generation equipment of the above embodiments of the present invention, the energy of exhaust gas can be fully utilized to drive the generator impeller to rotate, ensuring that the energy of vehicle exhaust gas is recovered and utilized, and improving the power performance of the engine.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the working principle of the power generation system according to an embodiment of the present invention;

[0024] Figure 2 This is a flowchart illustrating the control method for a power generation device according to an embodiment of the present invention;

[0025] Figure 3This is a flowchart illustrating a control method for a power generation device according to a specific embodiment of the present invention;

[0026] Figure 4 This is a block diagram of the control device for a power generation device according to an embodiment of the present invention;

[0027] Figure 5 This is a block diagram of a power generation device according to an embodiment of the present invention;

[0028] Figure 6 This is a block diagram of a vehicle according to an embodiment of the present invention. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] The following description, with reference to the accompanying drawings, describes a control method for a power generation device, a control device for a power generation device, a power generation device, and a vehicle according to embodiments of the present invention.

[0031] Before introducing the control method of the power generation equipment of the present invention, the structure of the power generation system of the present invention will be described accordingly. Specifically, as follows: Figure 1 As shown, in some embodiments of the present invention, the power generation device 1000 includes an impeller 101, a generator 102, and a clutch 103. The impeller 101 is disposed in an exhaust pipe 104. One end of the exhaust pipe 104 is connected to an engine 105. A pressure sensor 106 is also disposed in the exhaust pipe 104. A speed sensor 107 is also disposed on the engine 105. An ECU (Electronic Control Unit) is connected to the speed sensor 107, the pressure sensor 106, and an integrated controller 108 disposed on the generator 102. A battery 109 is connected to the integrated controller 108 and the ECU.

[0032] It should be noted that during vehicle operation, the engine 102 relies on the high-temperature airflow of the exhaust to blow the impeller 101 mounted on the exhaust pipe 104, causing the fan blades on the impeller 101 to rotate, thereby driving the generator 102 to rotate and generate electricity, which is then connected to the battery 109 for energy storage.

[0033] Figure 2 This is a flowchart illustrating the control method for a power generation device according to an embodiment of the present invention.

[0034] Specifically, in some embodiments of the present invention, such as Figure 2As shown, the control methods for power generation equipment include:

[0035] S101 obtains the engine speed and the internal pressure of the exhaust pipe.

[0036] Specifically, in this embodiment, a speed sensor can be installed on the engine to obtain the engine speed, and a pressure sensor can be installed inside the exhaust pipe to obtain the internal pressure of the exhaust pipe between the engine and the impeller. Furthermore, the present invention does not specifically limit the method of obtaining the engine speed and the internal pressure of the exhaust pipe between the engine and the impeller.

[0037] S102 determines the target exhaust back pressure of the engine based on the engine speed and the internal pressure of the exhaust pipe.

[0038] Specifically, in this embodiment, a speed sensor is set to obtain the engine speed, and the speed is converted into a speed electrical signal, which is then sent to the ECU. A pressure sensor is set to obtain the internal pressure of the exhaust pipe, and the internal pressure is converted into a pressure electrical signal, which is then sent to the ECU. The ECU can then calculate the target back pressure value of the engine based on the obtained speed and pressure electrical signals.

[0039] S103 controls the impeller speed according to the engine's target exhaust back pressure in order to adjust the engine's exhaust back pressure.

[0040] Specifically, in this embodiment, after the ECU calculates the target back pressure value of the engine based on the acquired speed and pressure electrical signals, the ECU sends the target back pressure value to the integrated controller. The integrated controller can control the speed of the impeller based on the target exhaust back pressure of the engine calculated by the ECU, so as to adjust the exhaust back pressure of the engine and improve the power performance of the engine while ensuring that the energy of the vehicle exhaust gas is recovered and utilized.

[0041] Furthermore, in some embodiments of the present invention, when the engine speed is less than or equal to a first preset speed, the impeller speed is controlled according to the engine's target exhaust back pressure, including: if the engine's target exhaust back pressure is greater than the internal pressure of the exhaust pipe, then the impeller speed is controlled to be within a first speed range.

[0042] Specifically, in this embodiment, the engine speed is acquired by a speed sensor installed on the engine and converted into an electrical signal, which is then sent to the ECU. Similarly, the internal pressure of the exhaust pipe is acquired by a pressure sensor installed inside the exhaust pipe and converted into a pressure signal, which is also sent to the ECU. When the engine speed is less than or equal to a first preset speed and the internal pressure of the exhaust pipe is a first preset pressure P1, a target exhaust back pressure of the engine is determined as a first preset exhaust back pressure P11 using a preset data model stored in the ECU. If the first preset exhaust back pressure P11 is greater than the first preset pressure P1, the determined first preset exhaust back pressure P11 is sent to the SCU (System Control Unit). The SCU can then control the generator's electromagnetic clutch to engage based on the received first preset exhaust back pressure P11, and adjust the generator speed to be within a first speed range, thereby controlling the impeller speed to be within the first speed range, where the impeller speed is equal to the generator speed. This embodiment increases the internal pressure of the exhaust pipe from the first preset pressure P1 to the first preset exhaust back pressure P11, enabling the engine to operate in its optimal state and ensuring engine power.

[0043] It should be noted that in this embodiment, if the first preset exhaust back pressure P11 is less than or equal to the first preset pressure P1, the generator is not controlled. The first speed range can be from 100 r / min to 1100 r / min, and the first preset speed can be 1200 r / min. In addition, the present invention does not specifically limit the value of the first preset speed and the range of the first speed range. For example, the first preset speed can also be 1300 r / min, 1400 r / min, and 1500 r / min, and the first speed range can also be from 500 r / min to 1100 r / min.

[0044] Furthermore, in some embodiments of the present invention, when the engine speed is greater than a first preset speed and less than or equal to a second preset speed, the impeller speed is controlled according to the engine's target exhaust back pressure, including: if the engine's target exhaust back pressure is equal to the internal pressure of the exhaust pipe, then the impeller speed is controlled to be in the second speed range.

[0045] Specifically, in this embodiment, the engine speed is acquired by a speed sensor installed on the engine and converted into an electrical signal, which is then sent to the ECU. Similarly, the internal pressure of the exhaust pipe is acquired by a pressure sensor installed inside the exhaust pipe and converted into an electrical signal, which is also sent to the ECU. When the engine speed is greater than a first preset speed and less than or equal to a second preset speed, and the internal pressure of the exhaust pipe is a second preset pressure P2, the target exhaust back pressure is determined as a second preset exhaust back pressure P22 using a preset data model stored in the ECU. If the second preset exhaust back pressure P22 equals the second preset pressure P2, the determined second preset exhaust back pressure P22 is sent to the SCU. The SCU can then control the generator electromagnetic clutch to engage based on the received second preset exhaust back pressure P22, and adjust the generator speed to be within a second speed range, thereby controlling the impeller speed to be within the second speed range, where the impeller speed is equal to the generator speed. This embodiment stabilizes the internal pressure of the exhaust pipe at a second preset exhaust back pressure P22, which is equal to the second preset pressure P2, allowing the engine to operate in its optimal state and ensuring engine power.

[0046] It should be noted that in this embodiment, if the second preset exhaust back pressure P22 is not equal to the second preset pressure P2, the generator is not controlled. The second speed range can be from 1300 r / min to 3300 r / min, and the second preset speed can be 3500 r / min. In addition, the present invention does not specifically limit the value of the second preset speed and the range of the second speed range. For example, the second preset speed can also be 3600 r / min, 3700 r / min and 3800 r / min, etc., and the second speed range can also be from 1500 r / min to 3000 r / min.

[0047] Furthermore, in some embodiments of the present invention, when the engine speed is greater than a second preset speed, the impeller speed is controlled according to the engine's target exhaust back pressure, including: if the engine's target exhaust back pressure is less than the internal pressure of the exhaust pipe, then the impeller speed is controlled to be in a third speed range.

[0048] Specifically, in this embodiment, the engine speed is acquired by a speed sensor installed on the engine and converted into an electrical signal, which is then sent to the ECU. Similarly, the internal pressure of the exhaust pipe is acquired by a pressure sensor installed inside the exhaust pipe and converted into a pressure signal, which is also sent to the ECU. When the engine speed is greater than a second preset speed and the internal pressure of the exhaust pipe is a third preset pressure P3, a target exhaust back pressure of the engine is determined as a third preset exhaust back pressure P33 using a preset data model. If the third preset exhaust back pressure P33 is less than the third preset pressure P3, the determined third preset exhaust back pressure P33 is sent to the SCU. The SCU can then control the generator's electromagnetic clutch to engage based on the received third preset exhaust back pressure P33, and adjust the generator speed to be within a third speed range, thereby controlling the impeller speed to be within the third speed range, where the impeller speed is equal to the generator speed. This embodiment reduces the internal pressure of the exhaust pipe from the third preset pressure P3 to the third preset exhaust back pressure P33, enabling the engine to operate in its optimal state and ensuring engine power.

[0049] It should be noted that in this embodiment, if the third preset exhaust back pressure P33 is greater than or equal to the third preset pressure P3, the generator is not controlled. The third speed range can be from 3600 r / min to 4000 r / min. In addition, the present invention may not specifically limit the range of the third speed range. For example, the third speed range can also be from 3550 r / min to 3900 r / min. Furthermore, the third preset pressure is greater than the second preset pressure, and the second preset pressure is greater than the first preset pressure.

[0050] Furthermore, in some embodiments of the present invention, the power generation device includes a generator and a clutch, the generator being connected to an impeller via the clutch, and the control method further includes controlling the rotational speed of the impeller according to the target exhaust back pressure of the engine before controlling the rotational speed of the impeller.

[0051] Specifically, in this embodiment, the engagement of the clutch can be controlled by an integrated controller to subsequently adjust the generator speed. The clutch is preferably an electromagnetic clutch. Furthermore, the present invention does not impose specific limitations on the selection of the clutch.

[0052] Furthermore, in some embodiments of the present invention, the control method further includes: acquiring the engine's historical speed, the exhaust pipe's internal historical pressure, and the engine's historical target exhaust back pressure; and establishing a preset data model based on the engine's historical speed, the exhaust pipe's internal historical pressure, and the engine's historical target exhaust back pressure.

[0053] Specifically, in this embodiment, a speed sensor is set to obtain the engine speed, which is then converted into a speed electrical signal and sent to the ECU. A pressure sensor is set to obtain the internal pressure of the exhaust pipe, which is then converted into a pressure electrical signal and sent to the ECU. The ECU can then obtain the target back pressure value of the engine in its optimal state based on the obtained speed and pressure electrical signals. The ECU stores the engine speed, exhaust pipe internal pressure, and engine target back pressure value obtained each time in the ECU, thereby obtaining the engine's historical speed, exhaust pipe internal historical pressure, and engine's historical target exhaust back pressure. A preset data model is then established based on the engine's historical speed, exhaust pipe internal historical pressure, and engine's historical target exhaust back pressure, and the preset data model is stored in the ECU.

[0054] It should be noted that the preset data module contains the correspondence between the engine speed and the internal pressure of the exhaust pipe and the engine's target back pressure value. Therefore, the engine's target back pressure value can be determined based on the obtained engine speed and the internal pressure of the exhaust pipe.

[0055] Furthermore, in some embodiments of the present invention, determining the target exhaust back pressure of the engine based on the engine speed and the internal pressure of the exhaust pipe includes: inputting the engine speed and the internal pressure of the exhaust pipe into a preset data model, and outputting the target exhaust back pressure of the engine after processing by the preset data model.

[0056] Specifically, in this embodiment, the preset data module contains the correspondence between the engine speed and the internal pressure of the exhaust pipe and the target back pressure value of the engine. The engine speed and the internal pressure of the exhaust pipe can be input into the preset data model, and the target exhaust back pressure of the engine can be output after processing by the preset data model.

[0057] In summary, in some embodiments of the present invention, such as Figure 3 As shown, after the engine starts, it is determined whether the engine speed is less than or equal to 1200 r / min. When the engine speed is less than or equal to 1200 r / min and the internal pressure of the exhaust pipe is the first preset pressure P1, the ECU can calculate the first preset exhaust back pressure P11 and send it to the SCU. The SCU controls the clutch to engage based on the received first preset exhaust back pressure P11 and adjusts the generator speed to be in the low-speed rotation range. Since the generator impeller is in the low-speed rotation range, it will increase the resistance to the exhaust, thereby increasing the exhaust back pressure to reach the first preset exhaust back pressure P11. Under the condition that the engine is in the optimal working state, the generator operates to generate electricity. Here, the impeller speed is equal to the generator speed, and the low-speed rotation range is the first speed range.

[0058] When the engine speed is greater than 1200 r / min and less than or equal to 3500 r / min, and the internal pressure of the exhaust pipe is the second preset pressure P2, the ECU can calculate the second preset exhaust back pressure P22 and send it to the SCU. The SCU, based on the received second preset exhaust back pressure P22, controls the clutch to engage and adjusts the generator impeller speed to the medium-speed range. At this time, the impeller rotates under the influence of the exhaust airflow, simultaneously driving the generator to rotate and generate electricity, which is then stored in the battery. The impeller speed is equal to the generator speed, and the medium-speed range is the second speed range.

[0059] When the engine speed is greater than 3500 r / min and the internal pressure of the exhaust pipe is the third preset pressure P3, the ECU can calculate the third preset exhaust back pressure P33 and send it to the SCU. The SCU controls the clutch to engage based on the received third preset exhaust back pressure P33 and regulates the generator impeller to rotate at high speed, so that the impeller is in the third speed range, thereby generating a relative negative pressure in the exhaust pipe. This improves the engine's power performance while ensuring that the vehicle's exhaust gas is recovered and utilized.

[0060] In summary, the control method for the power generation equipment proposed in the embodiments of the present invention can control the speed of the impeller according to the target exhaust back pressure of the engine, so as to adjust the exhaust back pressure of the engine, thereby making full use of the exhaust energy to drive the generator impeller to rotate, and improving the power performance of the engine while ensuring that the vehicle exhaust gas is recovered and utilized.

[0061] Figure 4 This is a block diagram of the control device for a power generation device according to an embodiment of the present invention.

[0062] Specifically, the power generation equipment includes an impeller, which is installed inside an exhaust pipe, one end of which is connected to an engine, such as... Figure 4 As shown, the control device 100 of the power generation equipment includes an acquisition module 10, a determination module 20, and a control module 30.

[0063] The acquisition module 10 is used to acquire the engine speed and the internal pressure of the exhaust pipe; the determination module 20 is used to determine the target exhaust back pressure of the engine based on the engine speed and the internal pressure of the exhaust pipe; and the control module 30 is used to control the speed of the impeller based on the target exhaust back pressure of the engine in order to adjust the exhaust back pressure of the engine.

[0064] In some embodiments of the present invention, when the engine speed is less than or equal to a first preset speed, the control module 30 is specifically used to control the impeller speed to be in the first speed range if the engine's target exhaust back pressure is greater than the internal pressure of the exhaust pipe.

[0065] In some embodiments of the present invention, when the engine speed is greater than a first preset speed and less than or equal to a second preset speed, the control module 30 is specifically used to control the impeller speed to be in the second speed range if the engine's target exhaust back pressure is equal to the internal pressure of the exhaust pipe.

[0066] In some embodiments of the present invention, when the engine speed is greater than a second preset speed, the control module 30 is specifically used to control the impeller speed to be in a third speed range if the engine's target exhaust back pressure is less than the internal pressure of the exhaust pipe.

[0067] In some embodiments of the present invention, the power generation device includes a generator and a clutch, the generator being connected to an impeller via the clutch, and the control module 30 is also used to control the engagement of the clutch before controlling the rotational speed of the impeller according to the target exhaust back pressure of the engine.

[0068] In some embodiments of the present invention, the acquisition module 10 is further configured to acquire the engine's historical speed, the exhaust pipe's internal historical pressure, and the engine's historical target exhaust back pressure; and to establish a preset data model based on the engine's historical speed, the exhaust pipe's internal historical pressure, and the engine's historical target exhaust back pressure.

[0069] In some embodiments of the present invention, the acquisition module 10 is further configured to input the engine speed and the internal pressure of the exhaust pipe into a preset data model, so as to output the target exhaust back pressure of the engine after processing by the preset data model.

[0070] It should be noted that other specific implementations of the control device for power generation equipment proposed in the embodiments of the present invention can be found in the specific implementations of the control method for power generation equipment in the foregoing embodiments of the present invention. To reduce redundancy, they will not be repeated here.

[0071] In summary, the control device for the power generation equipment proposed in the embodiments of the present invention can control the speed of the impeller according to the target exhaust back pressure of the engine, so as to adjust the exhaust back pressure of the engine, thereby making full use of the exhaust energy to drive the generator impeller to rotate, ensuring that the energy of the vehicle exhaust is recovered and utilized, and improving the power performance of the engine.

[0072] Figure 5 This is a block diagram of a power generation device according to an embodiment of the present invention.

[0073] like Figure 5As shown, the power generation equipment 1000 includes the control device 100 of the power generation equipment described in the above embodiment of the present invention.

[0074] According to the power generation equipment proposed in the embodiments of the present invention, by adopting the control device of the power generation equipment of the above embodiments of the present invention, the exhaust gas energy can be fully utilized to drive the generator impeller to rotate, ensuring that the energy of vehicle exhaust gas is recovered and utilized, and improving the power performance of the engine.

[0075] Figure 6 This is a block diagram of a vehicle according to an embodiment of the present invention.

[0076] like Figure 6 As shown, the vehicle 2000 includes the power generation equipment 1000 described in the above embodiment of the present invention.

[0077] According to the vehicle proposed in the embodiments of the present invention, by adopting the power generation equipment of the above embodiments of the present invention, the energy of exhaust gas can be fully utilized to drive the generator impeller to rotate, ensuring that the energy of vehicle exhaust gas is recovered and utilized, and improving the power performance of the engine.

[0078] Furthermore, other components and functions of the vehicle and power generation equipment in the embodiments of the present invention are known to those skilled in the art, and will not be described in detail here to reduce redundancy.

[0079] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0080] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0081] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0082] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0083] Furthermore, the terms "first," "second," etc., used in the embodiments of this invention are for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of technical features indicated in this embodiment. Therefore, features defined with terms such as "first" and "second" in the embodiments of this invention can explicitly or implicitly indicate that the embodiment includes at least one of those features. In the description of this invention, the word "multiple" means at least two or more, such as two, three, four, etc., unless otherwise explicitly specified in the embodiments.

[0084] In this invention, unless otherwise explicitly specified or limited in the embodiments, the terms "installation," "connection," "joining," and "fixing" appearing in the embodiments should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can also be a mechanical connection, an electrical connection, etc. Of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components, or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific implementation.

[0085] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0086] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A control method for a power generation device, characterized in that, The power generation equipment includes an impeller, a generator, a clutch, and an integrated controller mounted on the generator. The impeller is disposed inside an exhaust pipe, one end of which is connected to an engine. The generator is connected to the impeller via the clutch. The control method includes: The engine speed and the internal pressure of the exhaust pipe are acquired, and the engine speed is converted into an electrical signal, the internal pressure of the exhaust pipe is converted into an electrical signal, and the electrical signal is sent to the electronic control unit. The target exhaust back pressure of the engine is determined based on the engine speed and the internal pressure of the exhaust pipe. Specifically, the electronic control unit calculates the target exhaust back pressure of the engine based on the speed signal and the pressure signal, and sends it to the integrated controller. The integrated controller controls the clutch engagement based on the received target exhaust back pressure; Based on the comparison between the target exhaust back pressure of the engine and the internal pressure of the exhaust pipe, the speed of the generator is controlled to control the speed of the impeller, so that the internal pressure of the exhaust pipe is stabilized at the target exhaust back pressure, thereby adjusting the exhaust back pressure of the engine. When the engine speed is less than or equal to a first preset speed, the impeller speed is controlled according to the target exhaust back pressure of the engine, including: If the target exhaust back pressure of the engine is greater than the internal pressure of the exhaust pipe, then the speed of the impeller is controlled to be in the first speed range; When the engine speed is greater than a first preset speed and less than or equal to a second preset speed, the impeller speed is controlled according to the target exhaust back pressure of the engine, including: If the target exhaust back pressure of the engine is equal to the internal pressure of the exhaust pipe, then the speed of the impeller is controlled to be in the second speed range; When the engine speed is greater than a second preset speed, the impeller speed is controlled according to the target exhaust back pressure of the engine, including: If the target exhaust back pressure of the engine is less than the internal pressure of the exhaust pipe, the speed of the impeller is controlled to be in the third speed range.

2. The control method according to claim 1, characterized in that, The control method further includes: The historical engine speed, the historical internal pressure of the exhaust pipe, and the historical target exhaust back pressure of the engine are obtained. A preset data model is established based on the engine's historical speed, the exhaust pipe's internal historical pressure, and the engine's historical target exhaust back pressure.

3. The control method according to claim 2, characterized in that, Determining the target exhaust back pressure of the engine based on the engine speed and the internal pressure of the exhaust pipe includes: The engine speed and the internal pressure of the exhaust pipe are input into the preset data model, and the target exhaust back pressure of the engine is output after processing by the preset data model.

4. A control device for a power generation equipment, characterized in that, For implementing the control method as described in any one of claims 1-3, the power generation equipment includes an impeller disposed within an exhaust pipe, one end of which is connected to an engine; the control device includes: The acquisition module is used to acquire the engine speed and the internal pressure of the exhaust pipe; A determination module is used to determine the target exhaust back pressure of the engine based on the engine speed and the internal pressure of the exhaust pipe; The control module is used to control the rotational speed of the impeller according to the target exhaust back pressure of the engine, so as to adjust the exhaust back pressure of the engine.

5. A power generation device, characterized in that, The power generation equipment includes the control device for the power generation equipment as described in claim 4.

6. A vehicle, characterized in that, The vehicle includes the power generation equipment as described in claim 5.

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