Range extender generation power control method, device and equipment and computer storage medium

Abstract

The invention relates to the technical field of vehicle control, and discloses a range extender generated power control method, device and equipment and a computer storage medium, and the method comprises the steps: determining a current power generation level of a target vehicle based on a current whole vehicle driving mode of the target vehicle in combination with an SOC difference value between an actual SOC of the target vehicle and a target SOC; based on the current power generation grade, the current demand torque and the current vehicle speed value, the current basic power generation power of the range extender is determined; based on the current power generation level, the current slope value of the target vehicle and the current vehicle weight level, the current compensation power generation power of the range extender is determined, the current target power generation power of the range extender is obtained according to the current basic power generation power and the current compensation power generation power, and power generation is controlled. According to the technical scheme, the precision of range extender power generation power control of the vehicle in different driving modes and working condition scenes can be improved, so that the service life of a vehicle battery is prolonged, and the driving experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle control, and particularly to a method, device, equipment and computer storage medium for controlling the power generation of a range extender. Background Art

[0002] The range extender is driven by an engine to generate electric energy for charging the power battery of an electric vehicle, thereby increasing the driving range. When the power battery has insufficient power, the range extender starts and generates electric energy for charging power compensation. When the battery power is low, the range extender will start and generate enough electric energy to meet the charging requirements of the power battery. The size of the charging power compensation depends on the remaining power of the power battery, the power generation efficiency of the range extender, and the driving conditions of the vehicle. In some cases, such as when going uphill or downhill with a full load / empty load, the power consumption of the power battery will increase. At this time, the range extender needs to increase the power generation power for greater charging power compensation. When going uphill or downhill with a full load / empty load, the braking energy recovery works, and the power of the power battery will instead increase. At this time, the range extender needs to reduce the power generation power to prevent overcharging, reduce the overall vehicle cruising range, and reduce the overall vehicle fuel economy.

[0003] The existing power compensation strategy of the range extender is relatively simple and direct, only judged according to the state of charge (SOC) of the battery, and does not fully consider the influence of the slope and vehicle weight changes on the power consumption of the battery on uphill and downhill roads under different driving modes, resulting in poor accuracy of the control system, lack of accuracy in controlling the battery SOC of the vehicle in the hybrid drive mode, and inability to achieve the target of drive power balance control.

[0004] Therefore, there is an urgent need to provide a technical solution to solve the above problems. Summary of the Invention

[0005] In view of the above problems, the present application provides a method, device, equipment and computer storage medium for controlling the power generation of a range extender, which is used to solve the problem that the existing technology cannot meet the accurate control of the power generation of the range extender under different driving modes and working conditions.

[0006] According to one aspect of the embodiments of the present application, a method for controlling the power generation of a range extender is provided, and the method includes:

[0007] Based on the current overall vehicle driving mode of the target vehicle, and in combination with the current SOC difference between the actual SOC and the target SOC of the target vehicle, determine the current power generation level of the target vehicle;

[0008] Based on the current power generation level, the current required torque and the current vehicle speed value of the target vehicle, determine the current basic power generation power of the range extender of the target vehicle;

[0009] Based on the current power generation level, the current slope value and the current vehicle weight level of the target vehicle, determine the current compensation power generation of the range extender, and obtain the current target power generation of the range extender according to the current basic power generation and the current compensation power generation, and control the range extender to generate power according to the current target power generation.

[0010] In an alternative manner, the step of determining the current power generation level of the target vehicle based on the current overall vehicle driving mode of the target vehicle and in combination with the current SOC difference between the actual SOC and the target SOC of the target vehicle further includes:

[0011] Determine the first target association relationship between the SOC difference corresponding to the current overall vehicle driving mode and the power generation level, and determine the current power generation level from the first target association relationship according to the current SOC difference.

[0012] In an alternative manner, the step of determining the current basic power generation of the range extender of the target vehicle based on the current power generation level, the current required torque and the current vehicle speed value of the target vehicle further includes:

[0013] Determine the second target association relationship between the required torque, the vehicle speed value and the basic power generation corresponding to the current power generation level, and determine the current basic power generation of the range extender from the second target association relationship according to the current required torque and the current vehicle speed value.

[0014] In an alternative manner, the step of determining the current compensation power generation of the range extender based on the current power generation level, the current slope value and the current vehicle weight level of the target vehicle includes:

[0015] Determine the third target association relationship between the slope value, the vehicle weight level and the slope compensation power generation corresponding to the current power generation level, and determine the current compensation power generation of the range extender from the third target association relationship according to the current slope value and the current vehicle weight level.

[0016] In an alternative manner, the current overall vehicle driving mode is: fuel - priority driving mode, pure - electric - priority driving mode or intelligent - priority driving mode.

[0017] In an alternative manner, it further includes:

[0018] Based on the weight ratio of the actual load weight to the load - bearing weight of the target vehicle, determine the current vehicle weight level.

[0019] In an alternative manner, it further includes:

[0020] Based on the current accelerator pedal opening value and the current vehicle speed value of the target vehicle, and in combination with the fourth target correlation relationship among the accelerator pedal opening value, the vehicle speed value, and the required torque, determine the current required torque.

[0021] According to another aspect of the embodiments of the present application, there is provided a control device for the power generation of an extender, including:

[0022] A first processing module, configured to determine the current power generation level of the target vehicle based on the current overall vehicle driving mode of the target vehicle and in combination with the current SOC difference between the actual SOC and the target SOC of the target vehicle;

[0023] A second processing module, configured to determine the current basic power generation power of the extender of the target vehicle based on the current power generation level, the current required torque, and the current vehicle speed value of the target vehicle;

[0024] A power control module, configured to determine the current compensation power generation power of the extender based on the current power generation level, the current slope value, and the current vehicle weight level of the target vehicle, and obtain the current target power generation power of the extender according to the current basic power generation power and the current compensation power generation power, and control the extender to generate power according to the current target power generation power.

[0025] According to another aspect of the embodiments of the present application, there is provided a control device for the power generation of an extender, including:

[0026] A controller;

[0027] A memory, configured to store one or more programs, and when the one or more programs are executed by the controller, enable the controller to implement the method for controlling the power generation of the extender of the present application.

[0028] According to still another aspect of the embodiments of the present application, there is provided a computer-readable storage medium, where the computer-readable storage medium stores at least one executable instruction, and when the executable instruction runs on the control device / equipment for the power generation of the extender, enables the control device / equipment for the power generation of the extender to execute the operations of the method for controlling the power generation of the extender of the present application.

[0029] Based on the current overall vehicle driving mode of the target vehicle and in combination with the current SOC difference between the actual SOC and the target SOC of the target vehicle, the current power generation level of the target vehicle is determined; based on the current power generation level, the current demand torque and the current vehicle speed value of the target vehicle, the current basic power generation power of the range extender of the target vehicle is determined; based on the current power generation level, the current slope value and the current vehicle weight level of the target vehicle, the current compensation power generation power of the range extender is determined, and according to the current basic power generation power and the current compensation power generation power, the current target power generation power of the range extender is obtained, and the range extender is controlled to generate power according to the current target power generation power, which can improve the accuracy of the range extender power generation power control under different driving modes and working condition scenarios, thereby improving the service life of the vehicle battery and enhancing the driving experience of users.

[0030] The above description is only an overview of the technical solution of the embodiment of the present application. In order to be able to understand the technical means of the embodiment of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and understandable, the following specifically gives the specific implementation manners of the present application. Brief Description of the Drawings

[0031] The drawings are only used to illustrate the embodiments and are not considered to be a limitation of the present application. And throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0032] Figure 1 Shows a schematic flow chart of the first embodiment of the range extender power generation power control method provided by the present application;

[0033] Figure 2 Shows a schematic flow chart of the second embodiment of the range extender power generation power control method provided by the present application;

[0034] Figure 3 Shows a schematic flow chart of the third embodiment of the range extender power generation power control method provided by the present application;

[0035] Figure 4 Shows a schematic structural diagram of an embodiment of the range extender power generation power control device provided by the present application;

[0036] Figure 5 Shows a schematic structural diagram of an embodiment of the range extender power generation power control equipment provided by the present application. Detailed Description of the Embodiments

[0037] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0038] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0039] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily need to be executed in the described order. For example, some operations / steps can be decomposed, while some operations / steps can be combined or partially combined, so the actual execution order may change according to the actual situation.

[0040] As used in this application, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0041] The range extender is driven by an engine to generate electrical energy for charging the power battery of the electric vehicle, thereby increasing the driving range. When the power battery has insufficient power, the range extender starts and generates electrical energy for charging power compensation. When the battery power is low, the range extender will start and generate sufficient electrical energy to meet the charging requirements of the power battery. The magnitude of the charging power compensation depends on the remaining power of the power battery, the power generation efficiency of the range extender, and the driving conditions of the vehicle. In some cases, such as when going uphill fully loaded / empty, the power consumption of the power battery will increase, and at this time, the range extender needs to increase the power generation power for greater charging power compensation. When going downhill fully loaded / empty, regenerative braking works, and the power of the power battery will instead increase. At this time, the range extender needs to reduce the power generation power to prevent overcharging and reduce the overall vehicle cruising range and fuel economy of the vehicle.

[0042] The existing range extender power compensation strategy is relatively simple and direct, only judging according to the state of charge (SOC) of the battery, without fully considering the influence of the slope and vehicle weight changes on the battery power consumption on uphill / downhill roads under different driving modes, resulting in poor accuracy of the control system, lack of accuracy in the control of the battery SOC of the vehicle in the hybrid drive mode, and the inability to achieve the target of drive power balance control. Based on this:

[0043] Figure 1 The flowchart of the first embodiment of the range extender power generation control method provided by this application is shown. This method is executed by the range extender power generation control device. Please refer to Figure 1 as shown, and this method includes the following steps:

[0044] Step S110: Based on the current overall vehicle driving mode of the target vehicle, and in combination with the current SOC difference between the actual SOC and the target SOC of the target vehicle, determine the current power generation level of the target vehicle.

[0045] Among them, the target vehicle is defaulted to be a range-extended electric vehicle, and can also be selected according to actual situations without limitation here. The overall vehicle driving mode is determined according to the energy consumption method of the vehicle, including but not limited to: fuel priority driving mode, pure electric priority driving mode, and intelligent priority driving mode. The current overall vehicle driving mode is one of the fuel priority driving mode, pure electric priority driving mode, and intelligent priority driving mode, and is determined according to the actual selection operation of the user. The actual SOC (State of Charge) refers to the percentage of the current remaining battery power in its nominal capacity, usually displayed on the vehicle dashboard, and is used to reflect the true state of charge of the battery. The target SOC refers to the desired SOC value set to optimize the battery performance, extend the battery life, or meet the requirements of specific application scenarios. The current SOC difference is the SOC value obtained by subtracting the target SOC from the actual SOC. The power generation levels are default set to 0, 1, and 2, and can also be divided according to actual situations without limitation here. Under different overall vehicle driving modes, there are corresponding mapping (association) relationships between different SOC differences and power generation levels.

[0046] Step S120: Based on the current power generation level, the current required torque of the target vehicle, and the current vehicle speed value, determine the current basic power generation power of the range extender of the target vehicle.

[0047] Among them, the current required torque refers to the torque output required by the vehicle in the current state. The current basic power generation power refers to the power output that the vehicle can generate under the most basic operating conditions. Under different power generation levels, there are corresponding mapping (association) relationships between different required torques, vehicle speed values, and basic power generation powers.

[0048] Step S130: Based on the current power generation level, the current slope value, and the current vehicle weight level of the target vehicle, determine the current compensation power generation of the range extender, and obtain the current target power generation of the range extender according to the current basic power generation and the current compensation power generation, and control the range extender to generate power according to the current target power generation.

[0049] Among them, the slope value refers to the slope value where the vehicle is located, which can be collected by a slope sensor. The vehicle weight levels include: light load level, medium load level, and heavy load level. The current target power generation is the sum of the current basic power generation and the current compensation power generation.

[0050] In S130, specifically, based on the weight ratio of the actual load weight to the load-bearing weight of the target vehicle, determine the current vehicle weight level. Among them, the load-bearing weight is the theoretically maximum load-bearing weight of the vehicle, and the actual load weight is the actual load-bearing weight of the vehicle (such as collected by a pressure sensor). The vehicle weight level can be determined according to the ratio interval where the weight ratio is located. For example, if it is less than 50%, it is determined as the light load level; if it is 50%-75%, it is determined as the medium load level; if it is greater than 75%, it is determined as the heavy load level.

[0051] The technical solution of this embodiment can improve the accuracy of the range extender power generation control under different driving modes and working conditions of the vehicle, thereby improving the service life of the vehicle battery and enhancing the user's driving experience.

[0052] Figure 2 The flowchart of the second embodiment of the range extender power generation control method provided by the present application is shown. This method is executed by a range extender power generation control device. Please refer to Figure 2 As shown, this method includes the following steps:

[0053] Step S210: Determine the first target association relationship between the SOC difference corresponding to the current vehicle driving mode and the power generation level, and determine the current power generation level from the first target association relationship according to the current SOC difference.

[0054] Among them, each vehicle driving mode corresponds to a first correlation relationship, which refers to the correlation relationship between the SOC difference and the power generation level, and is default represented by a MAP table obtained through simulation. The first target correlation relationship is the first correlation relationship corresponding to the current vehicle driving mode. When the current vehicle driving mode is the fuel priority driving mode, the first correlation relationship (MAP table) corresponding to the fuel priority driving mode is shown in Table 1; when the current vehicle driving mode is the pure electric priority driving mode, the first correlation relationship (MAP table) corresponding to the pure electric priority driving mode is shown in Table 2; when the current vehicle driving mode is the intelligent priority driving mode, the first correlation relationship (MAP table) corresponding to the intelligent priority driving mode is shown in Table 3. For example, if the current vehicle driving mode is the fuel priority driving mode and the current SOC difference is -5, the current power generation level can be obtained as 1 according to Table 1. If the current vehicle driving mode is the fuel priority driving mode and the current SOC difference is -8 (since it does not reach -5, the power generation level corresponding to -10 is taken, and all MAP tables in the present invention are default taken in this way), the current power generation level can be obtained as 2 according to Table 1.

[0055] Table 1:

[0056] SOC difference -10 -5 0 5 10 Power generation level 2 1 1 0 0

[0057] Table 2:

[0058] SOC difference -10 -5 0 5 10 Power generation level 1 1 1 1 1

[0059] Table 3:

[0060] SOC difference -10 -5 0 5 10 Power generation level 2 2 2 1 0

[0061] It should be noted that the values in the above first correlation relationships (MAP tables) are only for illustrative purposes and can be adjusted according to different vehicle models specifically, without any restrictions here.

[0062] Step S220: Based on the current power generation level, the current required torque of the target vehicle, and the current vehicle speed value, determine the current basic power generation power of the range extender of the target vehicle.

[0063] Step S230: Based on the current power generation level, the current slope value of the target vehicle, and the current vehicle weight level, determine the current compensation power generation power of the range extender, and obtain the current target power generation power of the range extender according to the current basic power generation power and the current compensation power generation power, and control the range extender to generate power according to the current target power generation power.

[0064] The technical solution of this embodiment further determines the first target correlation relationship between the corresponding SOC difference and the power generation level according to the current vehicle driving mode, and obtains the current power generation level. By determining the current power generation level in combination with the current vehicle driving mode, the accuracy of the power generation power control of the range extender under different driving modes and working conditions can be improved, thereby prolonging the service life of the vehicle battery and enhancing the driving experience of users.

[0065] Figure 3 The flowchart of the third embodiment of the range extender power generation control method provided by this application is shown. This method is executed by the range extender power generation control device. Please refer to Figure 3 As shown, the method includes the following steps:

[0066] Step S310: Based on the current vehicle driving mode of the target vehicle, and in combination with the current SOC difference between the actual SOC and the target SOC of the target vehicle, determine the current power generation level of the target vehicle.

[0067] Step S320: Determine the second target correlation relationship between the required torque, vehicle speed value, and basic power generation power corresponding to the current power generation level, and determine the current basic power generation power of the range extender from the second target correlation relationship according to the current required torque and the current vehicle speed value.

[0068] Among them, each power generation level corresponds to a second correlation relationship. The second correlation relationship refers to the correlation relationship between the required torque, vehicle speed value, and basic power generation power, and is default represented by a MAP table obtained through simulation. The second target correlation relationship is the second correlation relationship corresponding to the current power generation level. For example, when the current power generation level is 0, the second target correlation relationship (MAP table) corresponding to the current power generation level is as

[0069] shown in Table 4 (Y represents the required torque, X represents the vehicle speed value, and the Z-axis corresponding to XY represents the basic power generation power).

[0070] Y / X 0 10 20 40 60 80 100 120 -20 0 0 8 18 23 28 38 40 -10 0 0 8 18 23 28 38 40 -5 0 0 8 18 23 28 38 40 -2 0 0 8 18 23 28 38 40 10 0 0 8 18 23 28 38 40 20 0 0 8 18 23 28 38 40 30 0 0 8 18 23 28 38 40 40 0 0 8 18 23 28 38 40 50 0 0 8 18 23 28 38 40 60 0 0 8 18 23 28 38 40 70 0 0 8 18 23 28 38 40 80 0 0 8 18 23 28 38 40 90 0 0 8 18 23 28 38 40 100 0 0 8 18 23 28 38 40

[0071] Table 4:

[0072] Step S330: Determine the third target correlation relationship between the slope value, vehicle weight level, and slope compensation power generation power corresponding to the current power generation level, and determine the current compensation power generation power of the range extender from the third target correlation relationship according to the current slope value and the current vehicle weight level.

[0073] Among them, each power generation level corresponds to a third correlation relationship, which refers to the correlation relationship among the slope value, vehicle weight level, and slope compensation power generation power, and is default represented by the MAP table obtained through simulation. The third target correlation relationship is the third correlation relationship corresponding to the current power generation level. For example, when the current power generation level is 0, the third target correlation relationship (MAP table) corresponding to the current power generation level is shown in Table 5 (Y represents the slope percentage value, X represents the vehicle weight level, and the Z-axis corresponding to XY represents the slope compensation power generation power).

[0074] Table 5:

[0075] Y / X 1 2 3 -5 0 0 0 -2 0 0 0 1 0 1 3 2 1 2 5 3 3 7 10 7 7 11 15 10 10 16 20

[0076] Step S340: Obtain the current target power generation power of the range extender based on the current basic power generation power and the current compensation power generation power, and control the range extender to generate power according to the current target power generation power.

[0077] The technical solution of this embodiment further determines the basic power generation power according to the second target correlation relationship among the required torque, vehicle speed value, and basic power generation power corresponding to the current power generation level, and determines the slope compensation power generation power according to the third target correlation relationship among the slope value, vehicle weight level, and slope compensation power generation power corresponding to the current power generation level, so as to obtain the power generation power of the range extender more accurately and perform control, which can improve the accuracy of the range extender power generation power control under different driving modes and working conditions of the vehicle, thereby improving the service life of the vehicle battery and enhancing the user's driving experience.

[0078] Based on any of the above embodiments, it further includes:

[0079] Determine the current required torque based on the current throttle pedal opening value and the current vehicle speed value of the target vehicle, and in combination with the fourth target correlation relationship among the throttle pedal opening value, vehicle speed value, and required torque.

[0080] Among them, the throttle pedal opening value can be collected through a throttle pedal position sensor. The fourth target correlation relationship is default represented by the MAP table obtained through simulation, and the current required torque is mapped through the known current throttle pedal opening value and the current vehicle speed value.

[0081] The above technical solution further determines the current required torque according to the current throttle pedal opening value and the current vehicle speed value, so as to obtain the power generation power of the range extender more accurately and perform control, which can improve the accuracy of the range extender power generation power control under different driving modes and working conditions of the vehicle, thereby improving the service life of the vehicle battery and enhancing the user's driving experience.

[0082] Figure 4The figure shows a schematic structural diagram of an embodiment of the range extender power generation control device provided by the present application. Please refer to Figure 4 As shown, the device 400 includes: a first processing module 410, a second processing module 420, and a power control module 430.

[0083] The first processing module 410 is configured to determine the current power generation level of the target vehicle based on the current overall vehicle driving mode of the target vehicle and in combination with the current SOC difference between the actual SOC and the target SOC of the target vehicle;

[0084] The second processing module 420 is configured to determine the current basic power generation power of the range extender of the target vehicle based on the current power generation level, the current required torque of the target vehicle, and the current vehicle speed value;

[0085] The power control module 430 is configured to determine the current compensation power generation power of the range extender based on the current power generation level, the current slope value of the target vehicle, and the current vehicle weight level, and obtain the current target power generation power of the range extender according to the current basic power generation power and the current compensation power generation power, and control the range extender to generate power according to the current target power generation power.

[0086] In an optional manner, the first processing module 410 is specifically configured to:

[0087] Determine the first target association relationship between the SOC difference corresponding to the current overall vehicle driving mode and the power generation level, and determine the current power generation level from the first target association relationship according to the current SOC difference.

[0088] In an optional manner, the second processing module 420 is specifically configured to:

[0089] Determine the second target association relationship between the required torque, vehicle speed value, and basic power generation power corresponding to the current power generation level, and determine the current basic power generation power of the range extender from the second target association relationship according to the current required torque and the current vehicle speed value.

[0090] In an optional manner, the power control module 430 is specifically configured to:

[0091] Determine the third target association relationship between the slope value, vehicle weight level, and slope compensation power generation power corresponding to the current power generation level, and determine the current compensation power generation power of the range extender from the third target association relationship according to the current slope value and the current vehicle weight level.

[0092] In an alternative manner, the current vehicle driving mode is: fuel - priority driving mode, pure - electric - priority driving mode, or intelligent - priority driving mode.

[0093] In an alternative manner, it further includes:

[0094] A first determination module, configured to determine the current vehicle weight level based on the weight ratio of the actual load weight to the load - bearing weight of the target vehicle.

[0095] In an alternative manner, it further includes:

[0096] A second determination module, configured to determine the current required torque based on the current throttle pedal opening value and the current vehicle speed value of the target vehicle, and in combination with the fourth target correlation relationship between the throttle pedal opening value, the vehicle speed value, and the required torque.

[0097] The technical solution of this embodiment can improve the accuracy of the power generation power control of the range extender under different driving modes and working condition scenarios, thereby increasing the service life of the vehicle battery and enhancing the driving experience of users.

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

[0099] Figure 5 The structure diagram of the embodiment of the range extender power generation power control device provided by the present application is shown, and it shows the structure diagram of the computer system suitable for implementing the range extender power generation power control device of the embodiment of the present application. The specific implementation of the range extender power generation power control device in the specific embodiment of the present application is not limited.

[0100] Please refer to Figure 5 As shown, the range extender power generation power control device includes: a controller; a memory, configured to store one or more programs, and when the one or more programs are executed by the controller, to execute the above - mentioned range extender power generation power control method.

[0101] Please continue to refer to Figure 5As shown, the computer system 500 of the range extender power generation control device includes a Central Processing Unit (CPU) 501, which can perform various appropriate actions and processes according to the program stored in the Read-Only Memory (ROM) 502 or the program loaded from the storage section 508 into the Random Access Memory (RAM) 503, such as executing the method in the above embodiments. In the RAM 503, various programs and data required for system operation are also stored. The CPU 501, ROM 502, and RAM 503 are connected to each other via a bus 504. An Input / Output (I / O) interface 505 is also connected to the bus 504.

[0102] The following components are connected to the I / O interface 505: an input section 506 including a keyboard, a mouse, etc.; an output section 507 including, for example, a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), etc. and a speaker, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to the I / O interface 505 as needed. A removable medium 511, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 510 as needed so that a computer program read from it can be installed into the storage section 508 as needed.

[0103] Specifically, according to the embodiments of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments of the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network via the communication section 509, and / or installed from the removable medium 511. When the computer program is executed by the Central Processing Unit (CPU) 501, various functions defined in the system of the present application are executed.

[0104] Another aspect of the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements the range extender power generation control method as described above. The computer-readable storage medium may be included in the range extender power generation control device described in the above embodiments, or may exist alone without being assembled into the electronic device.

[0105] Another aspect of the present application further provides a computer program product or a computer program. The computer program product or the computer program includes at least one executable instruction. When the executable instruction runs on the range extender power generation control device / equipment, it causes the range extender power generation control device / equipment to execute the range extender power generation control method as described above.

[0106] The executable instruction can specifically be used to cause the range extender power generation control equipment / device to perform the following operations:

[0107] Based on the current overall vehicle driving mode of the target vehicle, and in combination with the current SOC difference between the actual SOC and the target SOC of the target vehicle, determine the current power generation level of the target vehicle;

[0108] Based on the current power generation level, the current required torque of the target vehicle, and the current vehicle speed value, determine the current basic power generation power of the range extender of the target vehicle;

[0109] Based on the current power generation level, the current slope value of the target vehicle, and the current vehicle weight level, determine the current compensation power generation power of the range extender, and according to the current basic power generation power and the current compensation power generation power, obtain the current target power generation power of the range extender, and control the range extender to generate power according to the current target power generation power.

[0110] In an alternative manner, the step of determining the current power generation level of the target vehicle based on the current overall vehicle driving mode of the target vehicle and in combination with the current SOC difference between the actual SOC and the target SOC of the target vehicle further includes:

[0111] Determine the first target association relationship between the SOC difference corresponding to the current overall vehicle driving mode and the power generation level, and according to the current SOC difference, determine the current power generation level from the first target association relationship.

[0112] In an alternative manner, the step of determining the current basic power generation power of the range extender of the target vehicle based on the current power generation level, the current required torque of the target vehicle, and the current vehicle speed value further includes:

[0113] Determine the second target correlation relationship among the required torque, vehicle speed value, and basic power generation corresponding to the current power generation level, and determine the current basic power generation of the range extender from the second target correlation relationship according to the current required torque and the current vehicle speed value.

[0114] In an alternative manner, the step of determining the current compensation power generation of the range extender based on the current power generation level, the current slope value, and the current vehicle weight level of the target vehicle includes:

[0115] Determine the third target correlation relationship among the slope value, vehicle weight level, and slope compensation power generation corresponding to the current power generation level, and determine the current compensation power generation of the range extender from the third target correlation relationship according to the current slope value and the current vehicle weight level.

[0116] In an alternative manner, the current overall vehicle driving mode is: fuel - priority driving mode, pure - electric - priority driving mode, or intelligent - priority driving mode.

[0117] In an alternative manner, it further includes:

[0118] Determine the current vehicle weight level based on the weight ratio of the actual load weight to the load - bearing weight of the target vehicle.

[0119] In an alternative manner, it further includes:

[0120] Determine the current required torque based on the current accelerator pedal opening value and the current vehicle speed value of the target vehicle, and in combination with the fourth target correlation relationship among the accelerator pedal opening value, current vehicle speed value, and required torque.

[0121] The technical solution of this embodiment can improve the accuracy of the range extender power generation control under different driving modes and working condition scenarios of the vehicle, thereby increasing the service life of the vehicle battery and enhancing the user's driving experience.

[0122] It should be noted that the computer-readable medium shown in the embodiments of the present application can be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, the computer-readable storage medium can be any tangible medium that contains or stores a program, and this program can be used by or in conjunction with an instruction execution system, apparatus, or device. In the present application, a computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, in which a computer-readable computer program is carried. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium can also be any computer-readable medium other than the computer-readable storage medium, and this computer-readable medium can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted by any suitable medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0123] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present application. Among them, each block in the flowchart or block diagram can represent a module, a program segment, or a part of code, and the above module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in an order different from that marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram or flowchart, as well as the combination of blocks in the block diagram or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0124] The units involved in the embodiments described in this application can be implemented in software or in hardware, and the described units can also be provided in a processor. Among them, the names of these units do not constitute a limitation to the units themselves in some cases.

[0125] According to one aspect of the embodiments of the present application, there is also provided a computer system, including a Central Processing Unit (CPU), which can perform various appropriate actions and processes according to a program stored in a Read-Only Memory (ROM) or a program loaded from a storage section into a Random Access Memory (RAM), such as executing the methods in the above embodiments. In the RAM, various programs and data required for system operations are also stored. The CPU, ROM, and RAM are connected to each other via a bus. An Input / Output (I / O) interface is also connected to the bus.

[0126] The following components are connected to the I / O interface: an input section including a keyboard, a mouse, etc.; an output section including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), etc. and a speaker, etc.; a storage section including a hard disk, etc.; and a communication section including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section performs communication processing via a network such as the Internet. A drive is also connected to the I / O interface as needed. A removable medium, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive as needed so that a computer program read from it can be installed into the storage section as needed.

[0127] The above content is only a preferred exemplary embodiment of the present application and is not used to limit the implementation of the present application. Those of ordinary skill in the art can easily make corresponding adaptations or modifications according to the main concept and spirit of the present application. Therefore, the protection scope of the present application should be subject to the protection scope required by the claims.

Claims

1. A method for controlling power generation of a range extender, characterized in that: The method comprises: Determining a current power generation level of the target vehicle based on a current vehicle driving mode of the target vehicle and in combination with a current SOC difference between an actual SOC of the target vehicle and a target SOC; Determining a current basic power generation power of a range extender of the target vehicle based on the current power generation level, the current required torque of the target vehicle, and the current vehicle speed value; Based on the current power generation level, the current slope value and the current vehicle weight level of the target vehicle, the current compensation power generation of the range extender is determined, and according to the current basic power generation power and the current compensation power generation power, the current target power generation power of the range extender is obtained, and the range extender is controlled to generate electricity according to the current target power generation power.

2. The method according to claim 1, characterized in that The step of determining the current power generation level of the target vehicle based on the current vehicle driving mode of the target vehicle and in combination with the current SOC difference between the actual SOC of the target vehicle and the target SOC further includes: Determine a first target association relationship between the SOC difference corresponding to the current vehicle driving mode and the power generation level, and determine the current power generation level from the first target association relationship based on the current SOC difference.

3. The method according to claim 1, characterized in that: The step of determining the current basic power generation power of the range extender of the target vehicle based on the current power generation level, the current required torque of the target vehicle and the current vehicle speed value further includes: Determine a second target association relationship among the required torque, vehicle speed value and basic power generation power corresponding to the current power generation level, and determine the current basic power generation power of the range extender from the second target association relationship based on the current required torque and the current vehicle speed value.

4. The method according to claim 1, characterized in that: The step of determining the current compensation power generation of the range extender based on the current power generation level, the current slope value and the current vehicle weight level of the target vehicle comprises: Determine a third target association relationship between the slope value, vehicle weight level and slope compensation power generation corresponding to the current power generation level, and determine the current compensation power generation of the range extender from the third target association relationship based on the current slope value and the current vehicle weight level.

5. The method according to claim 1, characterized in that The current vehicle driving mode is: fuel priority driving mode, pure electric priority driving mode or intelligent priority driving mode.

6. The method according to any one of claims 1 to 5, characterized in that: Also includes: The current vehicle weight level is determined based on a weight ratio of the actual carrying weight of the target vehicle to the load carrying weight.

7. The method according to any one of claims 1 to 5, characterized in that: Also includes: The current required torque is determined based on the current accelerator pedal opening value and the current vehicle speed value of the target vehicle and in combination with a fourth target association relationship between the accelerator pedal opening value, the vehicle speed value and the required torque.

8. A range extender power generation control device, characterized in that: The device comprises: A first processing module, configured to determine a current power generation level of the target vehicle based on a current vehicle driving mode of the target vehicle and in combination with a current SOC difference between an actual SOC of the target vehicle and a target SOC; a second processing module, configured to determine a current basic power generation power of a range extender of the target vehicle based on the current power generation level, the current required torque of the target vehicle, and the current vehicle speed value; A power control module is used to determine the current compensation power generation of the range extender based on the current power generation level, the current slope value of the target vehicle and the current vehicle weight level, and obtain the current target power generation of the range extender according to the current basic power generation and the current compensation power generation, and control the range extender to generate electricity according to the current target power generation.

9. A range extender power generation control device, characterized in that: include: Controller; A memory for storing one or more programs, which, when executed by the controller, enables the controller to implement the range extender power generation control method described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The storage medium stores at least one executable instruction. When the executable instruction is executed on the range extender power generation control device / equipment, the range extender power generation control device / equipment performs the operation of the range extender power generation control method as described in any one of claims 1-7.

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