Vehicle range extending control method, device and equipment and computer readable storage medium

Abstract

The invention relates to the technical field of range extending control, and discloses a vehicle range extending control method, device and equipment and a computer readable storage medium, and the method comprises the following steps: determining a target power generation-power change relation of a vehicle based on a current state parameter of the vehicle; wherein the target power generation-power change relation comprises a first change relation between the vehicle speed and the power generation power and a second change relation between the power generation power and the rotating speed value; according to the current vehicle speed value of the vehicle and the target power generation-power change relation, a target range extending control strategy of the vehicle is determined, and a range extender of the vehicle is controlled to execute the target range extending control strategy; wherein the target range extending control strategy comprises the current generated power and the current rotating speed value. According to the technical scheme, the problem of control deviation of the balance range extender can be solved, and the driving experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the field of extended-range control technology, and in particular to a vehicle extended-range control method, device, equipment and computer-readable storage medium. Background Art

[0002] Current vehicles often use vehicle-side control, which usually requires only one power curve. The efficiency of the range extender is relatively simple, and it is impossible to formulate different efficiencies based on scenario differences. In the range extender model, the evaluation of power conservation and NVH (Noise, Vibration, Harshness) is poor. In the scenario that tends to protect NVH, NVH is poor; under the premise of tending to protect power conservation or fuel consumption, the range extender has poor oil-to-electric conversion, high fuel consumption, and insufficient power generation.

[0003] Therefore, it is urgent to provide a technical solution to solve the above problems. Summary of the invention

[0004] In view of the above problems, the present application provides a vehicle range extender control method, device, equipment and computer-readable storage medium to solve the problem in the prior art that the bias of the range extender control cannot be balanced, resulting in a poor user driving experience.

[0005] According to one aspect of an embodiment of the present application, a vehicle range extension control method is provided, the method comprising:

[0006] Determine a target power generation-power change relationship of the vehicle based on current state parameters of the vehicle; wherein the target power generation-power change relationship includes: a first change relationship between vehicle speed and power generation and a second change relationship between power generation and rotation speed value;

[0007] According to the current vehicle speed value and the target power generation-power change relationship of the vehicle, the target range extension control strategy of the vehicle is determined, and the range extender of the vehicle is controlled to execute the target range extension control strategy; wherein the target range extension control strategy includes: the current power generation and the current speed value.

[0008] In an optional manner, the step of determining the target range extension control strategy of the vehicle according to the current vehicle speed value and the target power generation-power change relationship of the vehicle further includes:

[0009] The current power generation of the vehicle is determined based on the current vehicle speed value of the vehicle and the first change relationship, and the current rotation speed value of the vehicle is determined based on the current power generation and the second change relationship.

[0010] In an optional manner, the step of determining the target generation-power variation relationship of the vehicle based on the current state parameters of the vehicle further includes:

[0011] Based on the current state parameter of the vehicle, determining the current power generation level of the vehicle; wherein the lower the current power generation level, the more the target range extension control strategy is inclined to improve NVH; and the higher the current power generation level, the more the target range extension control strategy is inclined to improve the oil-to-electricity conversion rate;

[0012] The target power generation-power variation relationship of the vehicle is determined based on a third variation relationship between the power generation level and the power generation-power variation relationship and in combination with the current power generation level.

[0013] In an optional manner, when the current state parameter is a current power value, the step of determining the current power generation level of the vehicle based on the current state parameter of the vehicle further includes:

[0014] Based on a fourth variation relationship between the power range and the power generation level, and in combination with the power range in which the current power value is located, the current power generation level of the vehicle is determined.

[0015] In an optional manner, when the current state parameter is the current energy replenishment mode, the step of determining the current power generation level of the vehicle based on the current state parameter of the vehicle further includes:

[0016] Based on the fifth change relationship between the energy supply method and the power generation level, and in combination with the current energy supply method, the current power generation level of the vehicle is determined; wherein the current energy supply method is: a refueling-only supply method, a charging-only supply method, or a refueling and charging combined supply method.

[0017] In an optional manner, when the current state parameter is the current driving mode, the step of determining the current power generation level of the vehicle based on the current state parameter of the vehicle further includes:

[0018] Based on the sixth change relationship between the driving mode and the power generation level, and in combination with the current driving mode, the current power generation level of the vehicle is determined; wherein the current driving mode is: energy-saving priority mode, pure electric priority mode or sports mode.

[0019] In an optional manner, when the current state parameter is the current vehicle mode, the step of determining the current power generation level of the vehicle based on the current state parameter of the vehicle further includes:

[0020] Based on the seventh change relationship between the vehicle mode and the power generation level, and in combination with the current vehicle mode, the current power generation level of the vehicle is determined; wherein the current vehicle mode is: pure electric priority mode, normal mode or fuel priority mode.

[0021] According to another aspect of an embodiment of the present application, a vehicle range extension control device is provided, comprising:

[0022] A processing module, for determining a target power generation-power change relationship of the vehicle based on current state parameters of the vehicle; wherein the target power generation-power change relationship includes: a first change relationship between vehicle speed and power generation and a second change relationship between power generation and rotation speed value;

[0023] A control module is used to determine a target range-extending control strategy for the vehicle according to a current vehicle speed value and a target power generation-power variation relationship, and control the range extender of the vehicle to execute the target range-extending control strategy; wherein the target range-extending control strategy includes: a current power generation and a current speed value.

[0024] According to another aspect of an embodiment of the present application, a vehicle range extension control device is provided, comprising: a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other through the communication bus;

[0025] The memory is used to store at least one executable instruction, and the executable instruction enables the processor to perform operations such as the vehicle range extension control method of the present invention.

[0026] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided, wherein at least one executable instruction is stored in the storage medium, and the executable instruction enables a vehicle range-extending control device / equipment to perform operations such as the vehicle range-extending control method of the present invention.

[0027] The embodiment of the present application determines the target power generation-power change relationship of the vehicle based on the current state parameters of the vehicle; determines the target range-extending control strategy of the vehicle according to the current vehicle speed value of the vehicle and the target power generation-power change relationship, and controls the range extender of the vehicle to execute the target range-extending control strategy, which can solve the problem of balancing the control bias of the range extender and enhance the user's driving experience.

[0028] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present application. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0030] Figure 1 A schematic flow chart of a first embodiment of a vehicle range extension control method provided by the present application is shown;

[0031] Figure 2 A schematic flow chart of a second embodiment of a vehicle range extension control method provided by the present application is shown;

[0032] Figure 3 A schematic flow chart of a third embodiment of a vehicle range extension control method provided by the present application is shown;

[0033] Figure 4 A schematic structural diagram of an embodiment of a vehicle range extension control device provided by the present application is shown;

[0034] Figure 5 A schematic structural diagram of an embodiment of a vehicle range-extending control device provided in the present application is shown. DETAILED DESCRIPTION

[0035] Here, exemplary embodiments will be described in detail, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0036] 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 may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0037] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0038] The term "multiple" as used in this application refers to two or more than two. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0039] At present, vehicles often use vehicle-side control, and the efficiency of the range extender is relatively simple. Usually, only one power curve is needed, and the efficiency is relatively simple, and different efficiencies cannot be formulated according to the differences in scenarios. In the range-extended vehicle model, the evaluation of power conservation and NVH is poor. In the scenario that tends to protect NVH, NVH is poor; under the premise of tending to protect power conservation or fuel consumption, the range extender has poor oil-to-electric conversion, high fuel consumption, and insufficient power generation.

[0040] Based on this:

[0041] Figure 1 The flowchart of the first embodiment of the vehicle range extension control method provided by the present application is shown, and the method is executed by the vehicle range extension control device. Figure 1 As shown, the method comprises the following steps:

[0042] Step S110: Determine a target power generation-power variation relationship of the vehicle based on current state parameters of the vehicle.

[0043] The vehicle is a range-extended vehicle by default. The current state parameter is by default: current power value, current energy supply mode, current driving mode, current vehicle mode or current scene mode. The target power generation-power change relationship includes: a first change relationship between vehicle speed and power generation and a second change relationship between power generation and speed value.

[0044] It should be noted that in the first change relationship, the vehicle speed is proportional to the power generation, and the higher the vehicle speed, the greater the corresponding power generation. In the second change relationship, the power generation is proportional to the speed value, and the greater the power generation, the greater the corresponding speed value. The first change relationship and the second change relationship can be determined through vehicle simulation tests.

[0045] Step S120: determining a target range-extending control strategy for the vehicle according to the current vehicle speed value and the target power generation-power variation relationship, and controlling the range extender of the vehicle to execute the target range-extending control strategy.

[0046] Among them, the target range-extending control strategy includes: current power generation and current speed value. The range extender controls the vehicle to run according to the current power generation and current speed value. In addition, according to the formula: power generation = speed value * torque / 9550, the current torque value can be calculated, and the torque value is managed by the vehicle's engine control unit.

[0047] The technical solution of this embodiment can solve the problem of balance range extender control bias and improve the user's driving experience.

[0048] Figure 2 The flowchart of the second embodiment of the vehicle range extension control method provided by the present application is shown, and the method is executed by the vehicle range extension control device. Figure 2 As shown, the method comprises the following steps:

[0049] Step S210: Determine the target power generation-power change relationship of the vehicle based on the current state parameters of the vehicle.

[0050] The target power generation-power variation relationship includes: a first variation relationship between vehicle speed and power generation and a second variation relationship between power generation and rotation speed.

[0051] Step S220: Based on the current vehicle speed value and the first change relationship, determine the current power generation of the vehicle, and based on the current power generation and the second change relationship, determine the current rotation speed value of the vehicle.

[0052] According to the vehicle speed interval corresponding to the current vehicle speed value in the first change relationship, the power generation corresponding to the vehicle speed interval is determined as the current power generation, and the speed value corresponding to the current power generation in the second change relationship is determined as the current speed value.

[0053] Step S230: Controlling the range extender of the vehicle to execute the target range extension control strategy.

[0054] Among them, the target range extension control strategy includes: current power generation and current speed value.

[0055] The technical solution of this embodiment further determines the range extender control strategy including the current power generation and the current speed value based on the current vehicle speed value and in combination with the power generation-power change relationship, thereby solving the problem of balancing the control bias of the range extender and improving the user's driving experience.

[0056] Figure 3 The flowchart of the third embodiment of the vehicle range extension control method provided by the present application is shown, and the method is executed by the vehicle range extension control device. Figure 3 As shown, the method comprises the following steps:

[0057] Step S310: Determine the current power generation level of the vehicle based on the current state parameters of the vehicle.

[0058] Among them, the lower the current power generation level, the more the target range extension control strategy tends to improve NVH (Noise, Vibration, Harshness, NVH is one of the important indicators for evaluating the ride comfort of a car); the higher the current power generation level, the more the target range extension control strategy tends to improve the oil-to-electricity conversion rate. In this embodiment, the power generation level includes: the first power generation level, the second power generation level and the third power generation level by default. Different power generation levels correspond to different power generation-power change relationships.

[0059] Step S320: Based on the third variation relationship between the power generation level and the power generation-power variation relationship and in combination with the current power generation level, determine the target power generation-power variation relationship of the vehicle.

[0060] The first power generation level corresponds to the first power generation-power change relationship, the second power generation level corresponds to the second power generation-power change relationship, and the third power generation level corresponds to the third power generation-power change relationship. The target power generation-power change relationship is the power generation-power change relationship corresponding to the current power generation level. The target power generation-power change relationship includes: the first change relationship between vehicle speed and power generation and the second change relationship between power generation and speed value.

[0061] 1. The first power generation-power change relationship corresponding to the first power generation level is shown in Table 1 (the change relationship between vehicle speed and power generation) and Table 2 (the change relationship between power generation and speed value):

[0062] Table 1:

[0063]

[0064] Table 2:

[0065]

[0066] 2. The second power generation-power change relationship corresponding to the second power generation level is shown in Table 3 (the change relationship between vehicle speed and power generation) and Table 4 (the change relationship between power generation and speed value):

[0067] Table 3:

[0068]

[0069] Table 4:

[0070]

[0071] 3. The third power generation-power change relationship corresponding to the third power generation level is shown in Table 5 (the change relationship between vehicle speed and power generation) and Table 6 (the change relationship between power generation and speed value):

[0072] Table 5:

[0073]

[0074] Table 6:

[0075]

[0076] The unit of vehicle speed is KPH, the unit of power generation is kW, and the unit of rotation speed is rpm. This embodiment only shows the case where the vehicle speed is less than or equal to 100KPH and below, and the case where the vehicle speed is greater than 100KPH is similar, and no further details are given here. For example, when the current power generation level of the vehicle is the first power generation level, the vehicle speed is 40KPH, the power generation is 10kW, and the rotation speed is 900rpm.

[0077] It should be noted that in this embodiment, the default speed interval is 10KPH (which can be adjusted in detail according to the specific plan). When the vehicle is in every 10KPH, the power generation power is certain. As long as the vehicle reaches a certain speed range, the power generation power is the same.

[0078] Step S330: Determine a target range-extending control strategy for the vehicle according to the current vehicle speed value and the target power generation-power variation relationship, and control the range extender of the vehicle to execute the target range-extending control strategy.

[0079] The target range extension control strategy includes: current power generation and current speed value. For example, when the current power generation level of the vehicle is the first power generation level and the vehicle speed is 40KPH, the current power generation is 10kW and the current speed value is 900rpm.

[0080] The technical solution of this embodiment further determines the current power generation level of the vehicle based on the current state parameters of the vehicle, and thus determines the target power generation-power change relationship corresponding to the current power generation level. While realizing the power generation level switching, the power generation power and speed value are switched, thereby solving the problem of the control bias of the balanced range extender and improving the user's driving experience.

[0081] On the basis of the third embodiment, when the current state parameter is the current power value, step S310 further includes:

[0082] Step S310A: Based on the fourth change relationship between the power range and the power generation level, and in combination with the power range in which the current power value is located, determine the current power generation level of the vehicle.

[0083] Among them, each power interval corresponds to a power generation level. Exemplarily, the fourth change relationship is shown in Table 7.

[0084] Table 7:

[0085] Power range 0-20 21-50 51-70 Power generation level 3 2 1

[0086] It should be noted that, in the above example, when the power value is above 70, no power generation is performed.

[0087] In the above optional method, the power generation level is switched according to the current power level, and the purpose of switching the power generation is achieved, thereby solving the problem that users are worried about the control bias of the range extender under different states of charge (State of Charge, SOC). The oil-to-electricity conversion rate is further improved at low power, optimizing vehicle fuel consumption and improving power conservation capabilities; at high power, the NVH problem is improved, thereby improving the user's driving experience.

[0088] On the basis of the third embodiment above, when the current state parameter is the current energy replenishment mode, step S310 further includes:

[0089] Step S310B: Based on the fifth change relationship between the energy replenishment method and the power generation level, and in combination with the current energy replenishment method, determine the current power generation level of the vehicle.

[0090] Exemplarily, the current energy replenishment mode is: refueling only, charging only, or a refueling and charging combined replenishment mode. The process of determining the energy replenishment mode is: identifying the charging and refueling habits of the vehicle within the preset use cycle of the vehicle (for example, it can be defaulted to one week). If the user only refuels and does not charge, it means that the user prefers to use oil and pays more attention to fuel consumption. At this time, the current energy replenishment mode is determined to be a refueling only replenishment mode. If the user only charges and does not refuel, it means that the user prefers to use electricity and pays more attention to NVH. At this time, the current energy replenishment mode is determined to be a charging only replenishment mode. If the user charges and refuels, it means that the user's habits are relatively comprehensive. At this time, the current energy replenishment mode is determined to be a refueling and charging combined replenishment mode. In the fifth change relationship, the refueling only replenishment mode corresponds to the third power generation level, the charging only replenishment mode corresponds to the first power generation level, and the refueling and charging combined replenishment mode corresponds to the second power generation level.

[0091] It should be noted that the number of times the vehicle has been charged and refueled can be identified through the vehicle's onboard system.

[0092] In the above optional method, the power generation level is further determined according to the vehicle's energy supply method, so as to achieve biased adjustments of NVH, power conservation and fuel consumption according to the user's driving habits, thereby achieving synchronous switching of power generation power and speed, and improving the user's driving experience.

[0093] On the basis of the third embodiment, when the current state parameter is the current driving mode, step S310 further includes:

[0094] Step S310C: Based on the sixth change relationship between the driving mode and the power generation level, and in combination with the current driving mode, determine the current power generation level of the vehicle.

[0095] Exemplarily, the current driving mode is: energy-saving priority mode, pure electric priority mode or sports mode. The user can select the current driving mode through the vehicle system. The energy-saving priority mode tends to focus on power conservation and fuel consumption. The current power SOC is low and the power generation demand is high, resulting in a high power generation power, which requires appropriate sacrifice of NVH. The pure electric priority mode tends to use electricity and pays more attention to NVH. The sports mode focuses on the relative balance of NVH and oil-to-electric conversion rate. In the sixth change relationship, the energy-saving priority mode corresponds to the third power generation level, the pure electric priority mode corresponds to the first power generation level, and the sports mode corresponds to the second power generation level.

[0096] In the above optional method, the power generation level is further determined according to the driving mode of the vehicle, so that the NVH, power conservation and fuel consumption can be adjusted according to the driving mode selected by the user, thereby achieving synchronous switching of power generation power and speed, thereby enhancing the user's driving experience.

[0097] On the basis of the third embodiment, when the current state parameter is the current vehicle mode, step S310 further includes:

[0098] Step S310D: Based on the seventh change relationship between the vehicle mode and the power generation level and in combination with the current vehicle mode, determine the current power generation level of the vehicle.

[0099] Exemplarily, the current vehicle mode is: pure electric priority mode, normal mode or fuel priority mode. The user can select the current vehicle mode through the vehicle system. The fuel priority mode tends to focus on power conservation and fuel consumption, tends to save fuel, and improves the oil-to-electricity conversion rate, which requires appropriate sacrifice of NVH. The pure electric priority mode tends to use electricity and pays more attention to NVH. The normal mode focuses on the relative balance between NVH and the oil-to-electricity conversion rate. In the seventh change relationship, the fuel priority mode corresponds to the third power generation level, the pure electric priority mode corresponds to the first power generation level, and the normal mode corresponds to the second power generation level.

[0100] It should be noted that the difference between vehicle mode and driving mode is that vehicle mode usually refers to several preset operating states of the car according to different usage scenarios and needs. These modes achieve different driving experiences and vehicle performance by adjusting the working parameters of key components such as the vehicle's engine, transmission, suspension system, and electronic control system. Driving mode focuses more on the driver's active setting of the vehicle according to personal driving style and needs. It usually changes the driving characteristics of the vehicle by adjusting parameters such as throttle output ratio, shift timing, steering response, and suspension hardness. In addition to power value, energy supply method, driving mode and vehicle mode, multi-scenario modes can also be set, such as: commuting, regional differences (north, south), user groups (age groups 20-30, 30-50, 50-70 and other similar population divisions).

[0101] In the above optional method, the power generation level is further determined according to the vehicle mode of the vehicle, so as to realize the biased adjustment of NVH, power conservation and fuel consumption according to the vehicle mode selected by the user, thereby realizing the synchronous switching of power generation power and speed and improving the user's driving experience.

[0102] Figure 4 The schematic diagram of the structure of the embodiment of the vehicle range extension control device provided by the present application is shown. Figure 4 As shown, the device 400 includes: a processing module 410 and a control module 420 .

[0103] The processing module 410 is used to determine the target power generation-power change relationship of the vehicle based on the current state parameters of the vehicle; wherein the target power generation-power change relationship includes: a first change relationship between vehicle speed and power generation and a second change relationship between power generation and speed value;

[0104] The control module 420 is used to determine the target range-extending control strategy of the vehicle according to the current vehicle speed value and the target power generation-power change relationship, and control the range extender of the vehicle to execute the target range-extending control strategy; wherein the target range-extending control strategy includes: the current power generation and the current speed value.

[0105] In an optional manner, the control module 420 is specifically used to:

[0106] The current power generation of the vehicle is determined based on the current vehicle speed value of the vehicle and the first change relationship, and the current rotation speed value of the vehicle is determined based on the current power generation and the second change relationship.

[0107] In an optional manner, the processing module 410 includes: a first processing module and a second processing module;

[0108] A first processing module is used to determine a current power generation level of the vehicle based on the current state parameter of the vehicle; wherein the lower the current power generation level, the more the target range extension control strategy is inclined to improve NVH; and the higher the current power generation level, the more the target range extension control strategy is inclined to improve the oil-to-electricity conversion rate;

[0109] The second processing module determines the target power generation-power change relationship of the vehicle based on the third change relationship between the power generation level and the power generation-power change relationship and in combination with the current power generation level.

[0110] In an optional manner, when the current state parameter is a current power value, the first processing module is specifically configured to:

[0111] Based on a fourth variation relationship between the power range and the power generation level, and in combination with the power range in which the current power value is located, the current power generation level of the vehicle is determined.

[0112] In an optional manner, when the current state parameter is the current energy replenishment mode, the first processing module is specifically configured to:

[0113] Based on the fifth change relationship between the energy supply method and the power generation level, and in combination with the current energy supply method, the current power generation level of the vehicle is determined; wherein the current energy supply method is: a refueling-only supply method, a charging-only supply method, or a refueling and charging combined supply method.

[0114] In an optional manner, when the current state parameter is the current driving mode, the first processing module is specifically configured to:

[0115] Based on the sixth change relationship between the driving mode and the power generation level, and in combination with the current driving mode, the current power generation level of the vehicle is determined; wherein the current driving mode is: energy-saving priority mode, pure electric priority mode or sports mode.

[0116] In an optional manner, when the current state parameter is the current vehicle mode, the first processing module is specifically configured to:

[0117] Based on the seventh change relationship between the vehicle mode and the power generation level, and in combination with the current vehicle mode, the current power generation level of the vehicle is determined; wherein the current vehicle mode is: pure electric priority mode, normal mode or fuel priority mode.

[0118] The technical solution of this embodiment can solve the problem of balance range extender control bias and improve the user's driving experience.

[0119] It should be noted that the vehicle range extension control device provided in the above embodiment and the vehicle range extension control method provided in the above embodiment belong to the same concept, and the specific manner in which each module and unit performs operations has been described in detail in the method embodiment and will not be repeated here.

[0120] Figure 5 A schematic diagram of the structure of an embodiment of a vehicle range extender control device provided in the present application is shown, which shows a schematic diagram of the structure of a computer system suitable for implementing the vehicle range extender control device of the embodiment of the present application. The specific embodiment of the present application does not limit the specific implementation of the vehicle range extender control device.

[0121] See also Figure 5 As shown, the vehicle range extension control device includes: a controller; a memory for storing one or more programs, and when the one or more programs are executed by the controller, the above-mentioned vehicle range extension control method is executed.

[0122] Please continue reading Figure 5 As shown, the computer system 500 of the vehicle range 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 part 508 to the random access memory (RAM) 503, such as executing the method in the above embodiment. In RAM503, various programs and data required for system operation are also stored. CPU 501, ROM 502 and RAM 503 are connected to each other through bus 504. Input / output (I / O) interface 505 is also connected to bus 504.

[0123] 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 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 therefrom is installed into the storage section 508 as needed.

[0124] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication section 509, and / or installed from a removable medium 511. When the computer program is executed by a central processing unit (CPU) 501, various functions defined in the system of the present application are executed.

[0125] Another aspect of the present application also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the vehicle range extension control method described above is implemented. The computer-readable storage medium may be included in the vehicle range extension control device described in the above embodiment, or may exist independently without being assembled into the electronic device.

[0126] Another aspect of the present application also provides a computer program product or computer program, which includes at least one executable instruction. When the executable instruction is executed on a vehicle range extender control device / equipment, the vehicle range extender control device / equipment executes the vehicle range extender control method as described above.

[0127] The executable instructions can be specifically used to enable the vehicle range-extended control device / apparatus to perform the following operations:

[0128] Determine a target power generation-power change relationship of the vehicle based on current state parameters of the vehicle; wherein the target power generation-power change relationship includes: a first change relationship between vehicle speed and power generation and a second change relationship between power generation and rotation speed value;

[0129] According to the current vehicle speed value and the target power generation-power change relationship of the vehicle, the target range extension control strategy of the vehicle is determined, and the range extender of the vehicle is controlled to execute the target range extension control strategy; wherein the target range extension control strategy includes: the current power generation and the current speed value.

[0130] In an optional manner, the step of determining the target range extension control strategy of the vehicle according to the current vehicle speed value and the target power generation-power change relationship of the vehicle further includes:

[0131] The current power generation of the vehicle is determined based on the current vehicle speed value of the vehicle and the first change relationship, and the current rotation speed value of the vehicle is determined based on the current power generation and the second change relationship.

[0132] In an optional manner, the step of determining the target generation-power variation relationship of the vehicle based on the current state parameters of the vehicle further includes:

[0133] Based on the current state parameter of the vehicle, determining the current power generation level of the vehicle; wherein the lower the current power generation level, the more the target range extension control strategy is inclined to improve NVH; and the higher the current power generation level, the more the target range extension control strategy is inclined to improve the oil-to-electricity conversion rate;

[0134] The target power generation-power variation relationship of the vehicle is determined based on a third variation relationship between the power generation level and the power generation-power variation relationship and in combination with the current power generation level.

[0135] In an optional manner, when the current state parameter is a current power value, the step of determining the current power generation level of the vehicle based on the current state parameter of the vehicle further includes:

[0136] Based on a fourth variation relationship between the power range and the power generation level, and in combination with the power range in which the current power value is located, the current power generation level of the vehicle is determined.

[0137] In an optional manner, when the current state parameter is the current energy replenishment mode, the step of determining the current power generation level of the vehicle based on the current state parameter of the vehicle further includes:

[0138] Based on the fifth change relationship between the energy supply method and the power generation level, and in combination with the current energy supply method, the current power generation level of the vehicle is determined; wherein the current energy supply method is: a refueling-only supply method, a charging-only supply method, or a refueling and charging combined supply method.

[0139] In an optional manner, when the current state parameter is the current driving mode, the step of determining the current power generation level of the vehicle based on the current state parameter of the vehicle further includes:

[0140] Based on the sixth change relationship between the driving mode and the power generation level, and in combination with the current driving mode, the current power generation level of the vehicle is determined; wherein the current driving mode is: energy-saving priority mode, pure electric priority mode or sports mode.

[0141] In an optional manner, when the current state parameter is the current vehicle mode, the step of determining the current power generation level of the vehicle based on the current state parameter of the vehicle further includes:

[0142] Based on the seventh change relationship between the vehicle mode and the power generation level, and in combination with the current vehicle mode, the current power generation level of the vehicle is determined; wherein the current vehicle mode is: pure electric priority mode, normal mode or fuel priority mode.

[0143] The technical solution of this embodiment can solve the problem of balance range extender control bias and improve the user's driving experience.

[0144] It should be noted that the computer-readable medium shown in the embodiment of the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media can 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it. In the present application, a computer-readable signal medium can include a data signal propagated in a baseband or as a part of a carrier wave, wherein a computer-readable computer program is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate, or transmit programs for use by or in conjunction with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0145] The flowchart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operations of the system, method and computer program product according to various embodiments of the present application. Wherein, each box in the flowchart or block diagram can represent a module, a program segment, or a part of the code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0146] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. The names of these units do not, in some cases, constitute limitations on the units themselves.

[0147] According to one aspect of an embodiment of the present application, a computer system is also provided, 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 portion into a random access memory (RAM), such as executing the method in the above embodiment. In RAM, various programs and data required for system operation are also stored. CPU, ROM and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0148] The following components are connected to the I / O interface: an input part including a keyboard, a mouse, etc.; an output part including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker; a storage part including a hard disk, etc.; and a communication part including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication part performs communication processing via a network such as the Internet. A drive is also connected to the I / O interface as needed. Removable media, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., are installed on the drive as needed so that the computer program read therefrom is installed into the storage part as needed.

[0149] The above content is only a preferred exemplary embodiment of the present application and is not intended to limit the implementation scheme of the present application. A person skilled in the art can easily make corresponding changes or modifications based on the main concept and spirit of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection required by the claims.

Claims

1. A vehicle range extension control method, characterized in that: The method comprises: Determine a target power generation-power change relationship of the vehicle based on current state parameters of the vehicle; wherein the target power generation-power change relationship includes: a first change relationship between vehicle speed and power generation and a second change relationship between power generation and rotation speed value; According to the current vehicle speed value and the target power generation-power change relationship of the vehicle, the target range extension control strategy of the vehicle is determined, and the range extender of the vehicle is controlled to execute the target range extension control strategy; wherein the target range extension control strategy includes: the current power generation and the current speed value.

2. The method according to claim 1, characterized in that The step of determining the target range-extending control strategy of the vehicle according to the current vehicle speed value and the target power generation-power variation relationship further includes: The current power generation of the vehicle is determined based on the current vehicle speed value of the vehicle and the first change relationship, and the current rotation speed value of the vehicle is determined based on the current power generation and the second change relationship.

3. The method according to claim 1, characterized in that: The step of determining the target generation-power variation relationship of the vehicle based on the current state parameters of the vehicle further comprises: Based on the current state parameter of the vehicle, determining the current power generation level of the vehicle; wherein the lower the current power generation level, the more the target range extension control strategy is inclined to improve NVH; and the higher the current power generation level, the more the target range extension control strategy is inclined to improve the oil-to-electricity conversion rate; The target power generation-power variation relationship of the vehicle is determined based on a third variation relationship between the power generation level and the power generation-power variation relationship and in combination with the current power generation level.

4. The method according to claim 3, characterized in that When the current state parameter is a current power value, the step of determining the current power generation level of the vehicle based on the current state parameter of the vehicle further includes: Based on a fourth variation relationship between the power range and the power generation level, and in combination with the power range in which the current power value is located, the current power generation level of the vehicle is determined.

5. The method according to claim 3, characterized in that: When the current state parameter is the current energy replenishment mode, the step of determining the current power generation level of the vehicle based on the current state parameter of the vehicle further includes: Based on the fifth change relationship between the energy supply method and the power generation level, and in combination with the current energy supply method, the current power generation level of the vehicle is determined; wherein the current energy supply method is: a refueling-only supply method, a charging-only supply method, or a refueling and charging combined supply method.

6. The method according to claim 3, characterized in that When the current state parameter is the current driving mode, the step of determining the current power generation level of the vehicle based on the current state parameter of the vehicle further includes: Based on the sixth change relationship between the driving mode and the power generation level, and in combination with the current driving mode, the current power generation level of the vehicle is determined; wherein the current driving mode is: energy-saving priority mode, pure electric priority mode or sports mode.

7. The method according to claim 3, characterized in that When the current state parameter is the current vehicle mode, the step of determining the current power generation level of the vehicle based on the current state parameter of the vehicle further includes: Based on the seventh change relationship between the vehicle mode and the power generation level, and in combination with the current vehicle mode, the current power generation level of the vehicle is determined; wherein the current vehicle mode is: pure electric priority mode, normal mode or fuel priority mode.

8. A vehicle range extension control device, characterized in that: The device comprises: A processing module, configured to determine a target power generation-power change relationship of the vehicle based on current state parameters of the vehicle; wherein the target power generation-power change relationship includes: a first change relationship between vehicle speed and power generation and a second change relationship between power generation and rotation speed value; A control module is used to determine a target range-extending control strategy for the vehicle according to a current vehicle speed value and a target power generation-power variation relationship, and control the range extender of the vehicle to execute the target range-extending control strategy; wherein the target range-extending control strategy includes: a current power generation and a current speed value.

9. A vehicle range extension 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 vehicle range extension 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 vehicle range-extended control device / equipment, the vehicle range-extended control device / equipment performs the operation of the vehicle range-extended control method as described in any one of claims 1 to 7.

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