Control method, device, equipment and storage medium

Abstract

The present application discloses a control method, device, equipment and storage medium, wherein the method comprises: obtaining the required power of the vehicle when the real-time speed of the vehicle is in a first speed interval; determining the first power generation power of the vehicle based on the required power and at least two preset power generation powers; wherein, in the first speed interval, the power generation efficiency of the range extender generated by the at least two preset power generation powers is higher than the power generation efficiency of the range extender generated by other power generation powers; based on the first power generation power, controlling the range extender of the vehicle to generate electricity. Through the above technical solution, the power generation efficiency of the range extender is improved while the fuel consumption of the vehicle is reduced.

Description

Technical Field

[0001] The present application relates to, but is not limited to, the field of range extender power generation technology, and in particular to a control method, device, equipment and storage medium. Background Art

[0002] In the related technology, for extended-range new energy vehicles, because they can meet consumers' needs for pure electric drive, low vehicle cost and environmental protection for short-distance travel, and solve the problem of mileage anxiety for long-distance travel, the power generation power is calculated only according to the difference between the target state of charge set by the driver and the actual state of charge and the real-time vehicle speed to meet the driver's needs to maintain the battery charge state, so that the range extender works in a non-efficient range for part of the time. Even if it works in a high-efficiency range, the range extender may charge the battery first and then generate electricity, resulting in low power generation efficiency of the range extender, and thus higher fuel consumption of the vehicle in the end. Summary of the invention

[0003] In view of this, embodiments of the present application provide at least one control method, apparatus, device, and storage medium.

[0004] The technical solution of the embodiment of the present application is implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides a control method, the method comprising: obtaining a required power of the vehicle when the real-time speed of the vehicle is in a first speed range; determining a first power generation power of the vehicle based on the required power and at least two preset power generation powers; wherein, in the first speed range, the power generation efficiency of the range extender generated by the at least two preset power generation powers is higher than the power generation efficiency of the range extender generated by other power generation powers; and based on the first power generation power, controlling the range extender of the vehicle to generate electricity.

[0006] In a second aspect, an embodiment of the present application provides a control device, comprising: an acquisition module, used to acquire the required power of the vehicle when the real-time vehicle speed is in a first speed range; a determination module, used to determine the first power generation power of the vehicle based on the required power and at least two preset power generation powers; wherein, in the first speed range, the power generation efficiency of the range extender generated by the at least two preset power generation powers is higher than the power generation efficiency of the range extender generated by other power generation powers; and a control module, used to control the range extender of the vehicle to generate electricity based on the first power generation power.

[0007] In a third aspect, an embodiment of the present application provides a computer device, including a memory and a processor, wherein the memory stores a computer program that can be executed on the processor, and when the processor executes the program, some or all of the steps in the above method are implemented.

[0008] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which implements some or all of the steps in the above method when executed by a processor.

[0009] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program or instructions, which, when executed by a processor, implement some or all of the steps in the above method.

[0010] In an embodiment of the present application, a dimension of vehicle demand power is added, and a target power generation power is calculated; when the real-time speed of the vehicle is in a first speed interval, the vehicle demand power is obtained, and the vehicle's first power generation power is determined based on the vehicle demand power and at least two preset power generation powers; wherein, when the real-time speed of the vehicle is in the first speed interval, the power generation efficiency of the vehicle's range extender at each of the at least two preset power generation powers is greater than the power generation efficiency of other power generation powers except the at least two preset power generation powers; the vehicle's range extender is controlled to generate power based on the first power generation power, thereby improving the power generation efficiency of the vehicle's range extender and reducing the vehicle's fuel consumption.

[0011] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and are not intended to limit the technical solutions of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present application and are used together with the specification to illustrate the technical solution of the present application.

[0013] Figure 1 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application;

[0014] Figure 2 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application;

[0015] Figure 3 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application;

[0016] Figure 4 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application;

[0017] Figure 5 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application;

[0018] Figure 6 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application;

[0019] Figure 7 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application;

[0020] Figure 8 A schematic diagram of the structure of a control device provided in an embodiment of the present application;

[0021] Fig. 9 A hardware entity diagram of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] In the related technologies, extended-range new energy vehicles are favored by consumers because they can meet the needs of consumers for short-distance travel with pure electric drive, low vehicle cost and environmental protection, and solve the problem of mileage anxiety for long-distance travel. They are rapidly developing in China, and their sales and market share continue to rise. How to improve the power generation efficiency of the range extender, reduce fuel consumption, maximize the advantages of the extended-range vehicle, and reduce the cost of consumers' vehicles is the key to further improving the advantages of extended-range new energy vehicles. In response to the above technical problems, the related technologies only calculate the power generation power based on the difference between the target state of charge set by the driver and the actual state of charge and the real-time vehicle speed to meet the driver's need to maintain the battery charge state, so that the range extender works in the non-efficient range for part of the time. Even if it works in the efficient range, the range extender will charge the battery first and then generate electricity for use, resulting in higher fuel consumption, poorer economy, increased vehicle costs for consumers, and unnecessary environmental pollution.

[0023] The present application adds a dimension of vehicle demand power on the basis of the difference between the target state of charge and the actual state of charge and the vehicle speed, calculates the target power generation power, and reduces fuel consumption while maintaining the target state of charge; when the real-time vehicle speed is within the first vehicle speed range, the vehicle's power generation power is determined based on at least two preset power generation powers and the vehicle's demand power, and the vehicle's range extender is controlled to generate electricity based on the vehicle's power generation power; the power generation efficiency of the vehicle's range extender is improved while reducing the vehicle's fuel consumption.

[0024] Figure 1 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the method includes the following steps S101 to S103, combining Figure 1 The steps shown are explained.

[0025] Step S101: when the real-time vehicle speed is within a first vehicle speed range, obtaining the required power of the vehicle.

[0026] In some embodiments, the real-time speed of the vehicle can be obtained through the vehicle-mounted GPS navigation; the real-time speed of the vehicle can also be obtained through the vehicle's rotation speed sensor.

[0027] In some embodiments, the first vehicle speed range can represent the safe speed of the vehicle for normal driving on ordinary roads; for example, it can be the speed range [30,80] for driving on urban roads; or the speed range [60,120] for normal driving on expressways, etc.; among them, it can also be the speed range corresponding to normal driving on national highways, provincial highways, rural roads and other roads.

[0028] In some embodiments, the vehicle's demand power can represent the power required for the vehicle to maintain the current vehicle state; wherein the demand power may include the vehicle's demand power to maintain the vehicle speed and the demand power to maintain the state of the on-board electrical equipment; the on-board electrical equipment includes but is not limited to at least one of the following: vehicle air conditioning, vehicle audio, vehicle lights, smart seats, etc.

[0029] In some embodiments, the power required to maintain the vehicle speed can be obtained by acquiring the rotational speed of the vehicle engine; the power required to maintain other electrical equipment in the vehicle can be obtained through the vehicle computer system.

[0030] In some embodiments, when the real-time speed of the vehicle is in a first speed range, the required power of the vehicle is obtained; it is understandable that the real-time speed of the vehicle is obtained through the on-board GPS navigation or the vehicle speed sensor, and when the real-time speed of the vehicle is in the speed range corresponding to the normal driving of the vehicle on a normal road, the engine speed corresponding to the real-time speed of the vehicle is obtained through the vehicle speed sensor, the power required to maintain the real-time speed of the vehicle is calculated according to the engine speed, and the power required to maintain the state of the vehicle's electrical equipment is obtained according to the vehicle system.

[0031] Step S102, determining a first power generation power of the vehicle based on the required power and at least two preset power generation powers; wherein, in the first vehicle speed interval, the power generation efficiency of the range extender generated by the at least two preset power generation powers is higher than the power generation efficiency of the range extender generated by other power generation powers.

[0032] In some embodiments, the power generation efficiency of the vehicle's range extender at the at least two preset power generation powers is higher than the power generation efficiency of the range extender at other power generation powers, characterized in that when the real-time speed of the vehicle is in the first speed interval, the vehicle's range extender generates electricity at each preset power generation power to obtain a target power generation amount with a power generation efficiency higher than the power generation efficiency of the vehicle's range extender at other power generation powers to obtain the target power generation amount; exemplarily, the first speed interval is [30,80], the real-time speed of the vehicle is 60, any of the at least two preset power generation powers is 50W, and any other power generation power is 60W. It takes 30S for the vehicle's range extender to generate the target power generation amount at any preset power of 50W, and it takes 40S for the vehicle's range extender to generate electricity to the target power generation amount at any other power generation power of 60W. It can be understood that the time taken for the vehicle's range extender to generate electricity to the target power generation amount at any preset power is less than the time taken at any other power generation power, and thus, the power generation efficiency of the vehicle's range extender at any preset power is higher than the power generation efficiency of the vehicle's range extender at any other power generation power.

[0033] In some embodiments, the range extender is an electric vehicle component that can provide additional electrical energy to the vehicle, enabling the electric vehicle to increase its mileage; wherein the range extender includes an engine and an electric motor, and when the vehicle's current state of charge is low or does not meet the target state of charge, the engine and the generator are controlled to generate additional electrical energy, thereby extending the vehicle's mileage; it can be understood that the range extender can directly power the vehicle's motor while charging the vehicle's battery.

[0034] In some embodiments, at least two preset power generation powers can be obtained by: obtaining vehicle power generation test data; the vehicle power generation test data characterizes the efficiency of the range extender generating power to the target power generation amount with multiple test power generation powers under different vehicle speed ranges; obtaining the power generation efficiency of the range extender generating power to the target power generation amount with each test power generation power in the vehicle speed interval corresponding to the vehicle real-time speed through the vehicle power generation test data; obtaining at least two test power generation efficiencies with higher power generation efficiency among the power generation efficiencies corresponding to each test power generation power, and determining the at least two test power generation efficiencies as at least two preset power generation efficiencies. Exemplarily, when the vehicle speed range is the vehicle speed range corresponding to the real-time vehicle speed, the vehicle's range extender generates power with 10 test power generation powers to obtain the same power generation amount; obtaining the efficiency of the vehicle's range extender generating power with each test power generation power among the 10 test power generation powers; obtaining at least two test power generation powers with the highest power generation efficiency among the 10 test power generation powers, and determining the at least two test power generation powers as at least two preset power generation powers.

[0035] In some embodiments, the first power generation power of the vehicle is determined based on the required power and at least two preset power generation powers; it can be understood that the relationship between the required power and each of the at least two preset power generation powers is determined, and when the required power is less than each of the at least two preset power generation powers, the smallest preset power generation power of the at least two preset power generation powers is determined as the first power generation power of the vehicle; or when the required power is greater than each of the at least two preset power generation powers, the largest preset power generation power of the at least two preset power generation powers is determined as the first power generation power of the vehicle; illustratively, the required power is the power to maintain the normal driving speed of the vehicle and the power to maintain the state of the on-board electrical equipment; with at least two The embodiment of the present application is described by taking as an example two preset power generation powers, where the two preset power generation powers are 50W and 80W respectively; when the power for maintaining the normal driving speed of the vehicle and the power for maintaining the status of the on-board electrical equipment are 30W, the vehicle's required power is less than each of the two preset power generation powers, then the smallest preset power generation power of 50W of the two preset power generation powers is determined as the vehicle's first power generation power; when the power for maintaining the normal driving speed of the vehicle and the power for maintaining the status of the on-board electrical equipment are 100W, the vehicle's required power is greater than each of the two preset power generation powers, then the largest preset power generation power of 100W of the two preset power generation powers is determined as the vehicle's first power generation power.

[0036] Step S103: Based on the first generated power, control the range extender of the vehicle to generate electricity.

[0037] In some embodiments, the actual power generation power of the vehicle's range extender is determined based on the power required to maintain the vehicle's driving speed and the status of the vehicle's electrical equipment and a first power generation power generated by at least two preset power generation powers, and the vehicle's range extender is controlled to generate electricity with the actual power generation power, thereby meeting the power required to maintain the vehicle's normal driving speed and the status of other electrical equipment of the vehicle.

[0038] In an embodiment of the present application, when the real-time speed of the vehicle is in a first speed interval, the required power of the vehicle is obtained, and based on the required power of the vehicle and at least two preset power generation powers, the power generation power of the vehicle's range extender with higher power generation efficiency in the first speed interval is obtained, and the at least two power generation powers with higher power generation efficiency are determined as at least two preset power generation powers of the vehicle; based on the at least two power generation powers with higher power generation efficiency and the required power of the vehicle, the power generation power with the highest power generation efficiency of the vehicle in the first speed interval is determined, and the power generation power with the highest power generation efficiency is determined as the first power generation power; the vehicle's range extender is controlled to generate electricity based on the first power generation efficiency with the highest power generation efficiency; the power generation efficiency of the vehicle's range extender is improved while reducing the vehicle's fuel consumption.

[0039] Figure 2 1 is a schematic diagram of an implementation flow of a control method provided in an embodiment of the present application, and the method can be executed by a processor of a computer device. Figure 1 , the at least two preset power generation powers may include a first preset power generation power and a second preset power generation power; wherein the second preset power generation power is greater than the first preset power generation power; Figure 1 Step S102 in the above example can be updated to step S201 or step S202. Figure 2 The steps shown are explained.

[0040] Step S201: when the required power is less than a first preset power generation power, determine the first preset power generation power as the first power generation power.

[0041] In some embodiments, when the required power is less than the first preset power, the power generation efficiency of the range extender at the first preset power is higher than the power generation efficiency at other preset power. The first preset power with the highest power generation efficiency is used to determine the first power generation of the vehicle, and the range extender of the vehicle is controlled to generate power by the first power generation. Wherein, the power generation efficiency refers to the time required for the range extender to reach the power generation at different power generation when the power generation of the range extender is determined. For example, when the power generation of the range extender is determined, the range extender generates power at three power generation (the three power generation can be 30W, 40W, and 50W). According to the three power generation, the range extender generates power at 30W to the target power generation. It takes 40 seconds; the range extender generates power at 40W to the target power generation. It takes 50 seconds; the range extender generates power at 50W to the target power generation. The power generation efficiency of 40W is the highest.

[0042] Step S202: when the required power is greater than the second preset power generation power, determine the second preset power generation power as the first power generation power.

[0043] In some embodiments, when the power required to maintain the vehicle traveling at the real-time speed and maintain the status of the vehicle's electrical equipment is greater than the second preset power generation power, the vehicle's range extender generates electricity with the second preset power generation efficiency higher than the power generation efficiency of other power generation powers. The second preset power with the highest power generation efficiency is used to determine the vehicle's first power generation power, and the vehicle's range extender is controlled to generate electricity according to the second preset power, wherein the power generation power with the highest power generation efficiency of the vehicle at the current moment is determined by the second preset power, and the range extender is controlled to generate electricity at the power generation power with the highest power generation efficiency at the current moment.

[0044] Exemplarily, when the power required to maintain the vehicle at the real-time speed and the power required to maintain the status of other electrical equipment such as the vehicle's air conditioner, audio, and lights are greater than the second preset power, the power generation efficiency of the vehicle's range extender at the second preset power is higher than the power generation efficiency of the range extender at other power generation. For example, the second preset power generation is 50W, and the time it takes for the vehicle's range extender to generate electricity to the target power generation amount at the second preset power of 50W is 30S, the time it takes for the vehicle's range extender to generate electricity to the target power generation amount at the power generation power of 30W is 40S, and the time it takes for the vehicle's range extender to generate electricity to the target power generation amount at the power generation power of 60W is 50S. In this case, the time it takes for the vehicle's range extender to generate electricity to the target power generation amount at the second preset power generation is the shortest, that is, the vehicle's range extender has the highest power generation efficiency at the second preset power generation. Therefore, the second preset power generation with the highest power generation efficiency is determined as the first power generation power of the vehicle, and the vehicle's range extender is controlled to generate electricity by using the first power generation power as the second preset power generation power.

[0045] In an embodiment of the present application, the first power generation power of the vehicle is determined by the relationship between the vehicle's demand power and at least two preset power generation powers preset for the vehicle, wherein, when the vehicle's demand power is less than the smallest first preset power generation power among the at least two preset power generation powers, the first preset power is determined as the vehicle's first power generation power, and when the vehicle's demand power is greater than the largest second preset power generation power among the at least two preset power generation powers, the second preset power is determined as the vehicle's first power generation power, thereby improving the power generation efficiency of the vehicle's range extender while reducing the vehicle's fuel consumption.

[0046] Figure 3 1 is a schematic diagram of an implementation flow of a control method provided in an embodiment of the present application, and the method can be executed by a processor of a computer device. Figure 1, the at least two preset powers also include a third preset power; the third preset power is greater than the first preset power; the second preset power is greater than the third preset power; Figure 1 Step S102 in the above example can be updated to step S301 to step S302 or step S303, which will be combined with Figure 3 The steps shown are explained.

[0047] Step S301: Obtain the target state of charge and real-time state of charge of the vehicle.

[0048] In some embodiments, the state of charge (SOC) of a vehicle refers to the ratio of the remaining capacity of the vehicle's battery after it has been used for a period of time or has been left unused for a long time to its capacity in a fully charged state, usually expressed as a percentage. Its value range is 0% to 100%. When the vehicle's state of charge is 0%, it means that the vehicle's battery is fully discharged, and when the vehicle's state of charge is 100%, it means that the vehicle's battery is fully charged.

[0049] In some embodiments, the real-time state of charge refers to the ratio of the remaining capacity of the vehicle battery to the full capacity of the vehicle battery at any time during the driving of the vehicle, which reflects the remaining power of the vehicle battery.

[0050] In some embodiments, the target state of charge represents the state of charge that the driver wants the vehicle battery to achieve based on the driving plan or driving needs; that is, the remaining power that the vehicle battery wants to achieve; for example, if the driver expects a high mileage, a high vehicle speed, or other electrical devices in the vehicle (such as air conditioning, audio, entertainment equipment, etc.) need to remain on, the target state of charge of the vehicle can be set higher than the real-time state of charge, that is, the target remaining power of the vehicle can be set higher than the real-time remaining power of the vehicle.

[0051] In some embodiments, the real-time state of charge or target state of charge of the vehicle may be acquired through the vehicle's onboard system or vehicle control unit (VCU).

[0052] Step S302: when the required power is greater than or equal to the first preset power and less than the third preset power, determine the first generated power based on the difference between the target state of charge and the real-time state of charge.

[0053] In some embodiments, the at least two preset power generation powers of the vehicle may further include a third preset power generation power; wherein the second preset power generation power is greater than the third preset power generation power, and the third preset power generation power is greater than the first preset power generation power.

[0054] In some embodiments, when the power required to maintain the vehicle at the real-time speed and the power required to maintain the status of other electrical equipment such as the vehicle's air conditioning, audio, lights, etc. is greater than or equal to the first preset power and less than the third preset power, it is necessary to determine the vehicle's first power generation power in combination with the difference between the vehicle's target state of charge and the real-time state of charge; it is understandable that when the difference between the vehicle's target state of charge and the real-time state of charge is within a first difference range, the first preset power generation power is determined as the vehicle's first power generation power; when the difference between the vehicle's target state of charge and the real-time state of charge is within a second difference range, the second preset power generation power is determined as the vehicle's first power generation power; wherein the second difference range is greater than the first difference range.

[0055] Exemplarily, when the power required to maintain the vehicle at the real-time speed and the power required to maintain the status of other electrical equipment such as the vehicle's air conditioner, audio, and lights are greater than or equal to the first preset power and less than the third preset power, the first difference range is, for example, 10% to 30%, and the difference between the vehicle's target state of charge and the real-time state of charge is 20%, then the first preset power generation power is determined as the vehicle's first power generation power; if the second difference range is 30% to 50%, and the difference between the vehicle's target state of charge and the real-time state of charge is 40%, then the third preset power generation power is determined as the vehicle's first power generation power; wherein, when the power required to maintain the vehicle at the real-time speed and the power required to maintain the status of other electrical equipment such as the vehicle's air conditioner, audio, and lights are greater than or equal to the first preset power and less than the third preset power, and When the difference between the target state of charge and the real-time state of charge of the vehicle is within the second difference range, the power generation efficiency of the vehicle's range extender at the third preset power generation is higher than the power generation efficiency of the range extender at other power generation. For example, the third preset power generation is 50W, and the time taken for the vehicle's range extender to generate power to the target power generation at the third preset power of 50W is 30S, the time taken for the vehicle's range extender to generate power to the target power generation at the power generation of 30W is 40S, and the time taken for the vehicle's range extender to generate power to the target power generation at the power generation of 60W is 50S. Then, the time taken for the vehicle's range extender to generate power to the target power generation at the third preset power generation is the shortest, that is, the vehicle's range extender has the highest power generation efficiency when generating power at the third preset power generation, and thus the third preset power generation with the highest power generation efficiency is determined as the first power generation of the vehicle.

[0056] Step S303: when the required power is greater than or equal to the third preset power and less than the second preset power, determine the first generated power based on the difference between the target state of charge and the real-time state of charge.

[0057] In some embodiments, when the power required to maintain the vehicle at the real-time speed and the power required to maintain the status of other electrical equipment such as the vehicle's air conditioning, audio, lights, etc. is greater than or equal to the third preset power and less than the second preset power, it is necessary to determine the vehicle's first power generation power in combination with the difference between the vehicle's target state of charge and the real-time state of charge; it is understandable that when the difference between the vehicle's target state of charge and the real-time state of charge is within a third difference range, the third preset power generation power is determined as the vehicle's first power generation power; when the difference between the vehicle's target state of charge and the real-time state of charge is within a fourth difference range, the second preset power generation power is determined as the vehicle's first power generation power; wherein the fourth difference range is greater than the third difference range.

[0058] Exemplarily, when the power required to maintain the vehicle at its real-time speed and the power required to maintain the status of other electrical equipment such as the vehicle's air conditioning, audio, and lights are greater than or equal to the third preset power and less than the third preset power, the third difference range is, for example, 20% to 40%, and the difference between the vehicle's target state of charge and the real-time state of charge is 30%, then the third preset power generation power is determined as the vehicle's first power generation power; if the fourth difference range is 40% to 60%, and the difference between the vehicle's target state of charge and the real-time state of charge is 50%, then the second preset power generation power is determined as the vehicle's first power generation power.

[0059] In an embodiment of the present application, a first power generation power of the vehicle is determined based on the vehicle's required power, at least two preset power generation powers, and the difference between the target state of charge and the real-time state of charge; wherein, when the vehicle's required power is greater than or equal to the first preset power generation power and less than the third preset power generation power, or when the vehicle's required power is greater than or equal to the third preset power generation power and less than the second preset power generation power, the power generation efficiency with the highest power generation efficiency among the at least two preset power generation powers is determined as the vehicle's first power generation power based on the difference between the vehicle's target state of charge and the real-time state of charge, and the vehicle's range extender is controlled to generate electricity based on the power generation efficiency with the highest power generation efficiency, thereby improving the power generation efficiency of the vehicle's range extender and reducing the vehicle's fuel consumption.

[0060] In some embodiments, when the real-time speed of the vehicle is in the first speed range, the above step S101 may further include the following implementations:

[0061] In some embodiments, when the real-time speed of the vehicle is in a first speed interval, the power generation mode of the vehicle's range extender can be determined to be a fixed-point power generation mode, wherein the second speed interval can be 30 to 120 KM / H.

[0062] When the real-time vehicle speed is in a second vehicle speed interval, the first generated power is determined based on the target state of charge, the real-time state of charge, and the real-time speed.

[0063] In some embodiments, the second speed range of the vehicle refers to the vehicle being in a state lower than driving, for example, the vehicle speed is between 0 and 30 km / h. When the real-time vehicle speed is in the second speed range, the power generation mode of the vehicle's range extender is determined to be the vehicle speed following power generation mode.

[0064] In some embodiments, a target state of charge and a real-time state of charge of the vehicle are obtained.

[0065] In some embodiments, the first power generation power is determined based on the target state of charge, the real-time state of charge and the real-time speed in combination with a first preset power table; the first preset power table represents the efficiency of the vehicle in generating electricity at different power levels at different speeds and at different differences between the target state of charge and the real-time state of charge; it can be understood that the first power generation power of the vehicle is determined based on the difference between the target state of charge and the real-time state of charge of the vehicle and the real-time speed of the vehicle, wherein the greater the difference between the target state of charge and the real-time state of charge of the vehicle and the greater the real-time speed of the vehicle, the greater the first power generation power of the vehicle; wherein the first preset power table is obtained through experiments, which includes the first power generation power of the vehicle at different speeds and The difference between different target states of charge and the real-time states of charge, and the corresponding power generation efficiency when generating electricity at different power generation powers; wherein, according to the first preset power table, the vehicle state is queried at the real-time speed, the difference between the target state of charge and the real-time state of charge, when the vehicle generates electricity at different power generation powers, the power generation efficiency with the highest power generation efficiency is determined as the first power generation power; exemplarily, when the difference between the target state of charge and the real-time state of charge of the vehicle is 10%, and the vehicle speed is 15KM / H, the efficiency of the vehicle generating electricity at 50W is 60%, and the efficiency of generating electricity at 60W is 70%, then the power generation efficiency of 60W corresponding to the highest power generation efficiency of 70% is determined as the first power generation power.

[0066] When the real-time vehicle speed is in the third vehicle speed range, the first power generation power is determined based on the target state of charge and the real-time state of charge in combination with a second preset power table; the second preset power table represents the efficiency of the vehicle in generating electricity at different power generation powers under different differences between the target state of charge and the real-time state of charge.

[0067] In some embodiments, the third speed range of the vehicle indicates that the vehicle's driving speed is in a high-speed range. For example, when the vehicle's speed is between 120 km / h and 180 km / h, it can be determined that the power generation mode of the vehicle's range extender is a power-following power generation mode.

[0068] In some embodiments, when the real-time vehicle speed is in the third vehicle speed interval, the first power generation power of the vehicle is determined based on the target state of charge and the real-time state of charge in combination with a second preset power table; the second preset power table represents the efficiency of the vehicle in generating electricity at different power generation powers under different differences between the target state of charge and the real-time state of charge; it can be understood that the greater the difference between the target state of charge and the real-time state of charge of the vehicle, the greater the first power generation power of the vehicle; wherein, the second preset power table is obtained through experiments, which includes the power generation efficiency corresponding to the difference between the target state of charge and the real-time state of charge when the vehicle generates electricity at different power generation powers; according to the second preset power table, the power generation power with the highest power generation efficiency is queried when the vehicle generates electricity at different power generation powers under the difference between the target state of charge and the real-time state of charge, and the power generation power with the highest power generation efficiency is determined as the first power generation power.

[0069] Exemplarily, when the real-time vehicle speed is in the high-speed range of 120KM / H to 180KM / H, the first power generation power of the vehicle is determined according to the difference between the target state of charge and the real-time state of charge of the vehicle; if the difference between the target state of charge and the real-time state of charge of the vehicle is 20%, and the vehicle speed is 120KM / H, the efficiency of the vehicle's power generation at 80W is 50%, and the efficiency of power generation at 100W is 70%, then the power generation efficiency of 100W corresponding to the highest power generation efficiency of 70% is determined as the first power generation power. Among them, the greater the difference between the target state of charge and the real-time state of charge of the vehicle, the greater the first power generation of the vehicle; illustratively, when the difference between the target state of charge and the real-time state of charge of the vehicle is between 10% and 30%, the first power generation of the vehicle is determined to be 30W to 50W; when the difference between the target state of charge and the real-time state of charge of the vehicle is between 40% and 60%, the first power generation of the vehicle is determined to be 50W to 70W; when the difference between the target state of charge and the real-time state of charge of the vehicle is between 70% and 90%, the first power generation of the vehicle is determined to be 80W to 100W.

[0070] In an embodiment of the present application, the power generation mode of the vehicle is determined according to the speed range in which the real-time speed of the vehicle is located, wherein, when the real-time speed of the vehicle is in the first speed range, the power generation mode of the vehicle is determined to be the fixed-point power generation mode; when the real-time speed of the vehicle is in the second speed range, the power generation mode of the vehicle is determined to be the speed-following power generation mode; when the real-time speed of the vehicle is in the third speed range, the power generation mode of the vehicle is determined to be the power-following mode; wherein, when the vehicle is in the speed-following power generation mode, the first power generation power of the vehicle is determined according to the difference between the target power generation power and the real-time power generation power of the vehicle and the real-time speed; when the vehicle is in the power-following power generation mode, the first power generation mode of the vehicle is determined according to the difference between the target power generation power and the real-time power generation power of the vehicle; thereby improving the power generation efficiency of the vehicle's range extender in different speed ranges and reducing the vehicle's fuel consumption.

[0071] Figure 4 It is a schematic diagram of an implementation flow of a control method provided in an embodiment of the present application, and the method can be executed by a processor of a computer device. Figure 1 Step S103 can be updated to step S401 to step S403, combining Figure 4 The steps shown are explained.

[0072] Step S401, obtaining a second power generation of the vehicle; the second power generation represents a historical power generation of the vehicle.

[0073] In some embodiments, the power generation power determined by the vehicle's speed at the real-time vehicle speed is the first power generation power, and the vehicle's second power generation power represents the vehicle's historical power generation power; it can be understood that the power generation power determined based on the vehicle speed before the vehicle speed changes to the real-time vehicle speed is the second power generation power.

[0074] In some embodiments, historical power generation data of the vehicle can be obtained based on the vehicle's on-board system or vehicle controller, and the second power generation power of the vehicle can be obtained from the historical power generation data of the vehicle.

[0075] Step S402: determining a target power generation power of the range extender based on the first power generation power and the second power generation power.

[0076] In some embodiments, the target power generation of the range extender refers to the power generation at each moment in the process of the power generation of the vehicle's range extender changing to the first power generation after the vehicle's first power generation is determined, that is, the transitional power generation in the process of the vehicle's range extender changing to the first power generation.

[0077] In some embodiments, when the power generation power of a vehicle's range extender needs to be changed to a power generation power that meets the vehicle's current vehicle needs, the target power generation power is determined based on the power generation power before and after the change, and the power generation power is gradually changed to meet the vehicle's current vehicle needs based on the target power generation power. It can be understood that when the power generation power of the vehicle's range extender gradually changes from the second power generation power to the first power generation power, the power change amount of the vehicle's range extender is determined based on the second power generation power and the first power generation power, and the target power generation power is determined, thereby gradually changing to the first power generation power based on the target power generation power.

[0078] Step S403: controlling the range extender to generate electricity at the target power generation.

[0079] In some embodiments, the process in which the power generation power of the vehicle's range extender changes from the second power generation power to the first power generation power may include multiple target power generation powers; wherein each moment or each preset time period corresponds to a target power generation power; illustratively, the process in which the power generation power of the vehicle's range extender changes from the second power generation power to the first power generation power is 1 minute, and the preset time period is 10 seconds, then the process in which the power generation power of the vehicle's range extender changes from the second power generation power to the first power generation power includes 6 target power generation powers, and the vehicle's range extender is controlled to generate electricity at the 6 target power generation powers corresponding to the 6 preset time periods during the process in which the power generation power changes from the second power generation power to the first power generation power.

[0080] In an embodiment of the present application, a target power generation power of a range extender of the vehicle is determined in a process of changing from the second power generation power to the first power generation power according to a first power generation power corresponding to a real-time speed of the vehicle and a second power generation power in the history of the vehicle, and the range extender of the vehicle is controlled to gradually change from generating power at the target power generation power to generating power at the first power generation power, thereby improving the power generation efficiency of the range extender of the vehicle and reducing the fuel consumption of the vehicle.

[0081] Figure 5 1 is a schematic diagram of an implementation flow of a control method provided in an embodiment of the present application, and the method can be executed by a processor of a computer device. Figure 4 , Figure 4 Step S402 in can be updated to step S501 to step S502, combining Figure 5 The steps shown are explained.

[0082] Step S501: determining a power change value of the range extender based on a difference between the first generated power and the second generated power and a preset change rate; the power generation efficiency of the range extender obtained at the preset change rate is higher than the power generation efficiency of the range extender obtained at other change rates.

[0083] In some embodiments, the preset change rate of the vehicle's range extender refers to the percentage of the difference between the second power generation power or the first power generation power at each moment in the process of the range extender's power generation power changing from the second power generation power to the first power generation power; illustratively, if the difference between the first power generation power and the second power generation power is 20W, and the preset change rate is 20%, then the change value of the power generation power at each moment or in each preset time period is 20W×20%.

[0084] In some embodiments, the vehicle's range extender has a higher efficiency in generating electricity with the power obtained at a preset change rate than other vehicles' range extenders at other change rates; for example, taking the preset change rate of 20%, the vehicle's range extender obtains a power of 30W at the second moment at a preset change rate of 20% and generates electricity to a preset power generation amount in 20S; the vehicle's range extender obtains a power of 35W at the second moment at other change rates of 30% and generates electricity to a preset power generation amount in 30S; then the vehicle's range extender has a higher efficiency in generating electricity with the power obtained at the preset change rate of 20% than the vehicle's range extender obtains a power obtained at other change rates of 30%.

[0085] In some embodiments, the power change value of the range extender is determined based on the difference between the first power generation power and the second power generation power and a preset change rate; it can be understood that the power change value is obtained by multiplying the difference between the first power generation power and the second power generation power by the preset power generation power; exemplarily, the difference between the first power generation power and the second power generation power is 30W, and the preset change rate is 20%, then the power change value is 30W×20%, which is 6W.

[0086] Step S502: Determine the target generated power based on the second generated power and the power change value.

[0087] In some embodiments, during the process of the vehicle's range extender changing from the second power generation to the first power generation, the second power generation and the power change value determine the first target power generation at the first moment or the first preset time period, and the second target power generation at the second moment or the second preset time period is determined based on the first target power generation and the power change value, and the above steps are repeated until it changes to the first power generation; exemplarily, the first power generation is 60W, the second power generation is 30W, and the power change value is 6W, then during the process of the vehicle's range extender changing from the second power generation to the first power generation, the first target power generation at the first moment or the first preset time period is 36W, and the second target power generation at the second moment or the second preset time period is 42W; the above process is repeated until the power generation power of the vehicle's range extender changes to 60W.

[0088] In the embodiment of the present application, the change value of the vehicle's range extender from the second power generation power to the first power generation power is determined by the first power generation power, the second power generation power and the preset change rate, thereby determining the target power generation power of the vehicle's range extender, improving the power generation efficiency of the range extender, and thus reducing the vehicle's fuel consumption.

[0089] Figure 6 1 is a schematic diagram of an implementation flow of a control method provided in an embodiment of the present application, and the method can be executed by a processor of a computer device. Figure 4 , Figure 4 Step S403 in can be updated to steps S601 to S603, combining Figure 6 The steps shown are explained.

[0090] Step S601, obtaining a power generation efficiency curve of the vehicle; the power generation efficiency curve is used to characterize the efficiency of the range extender in obtaining the same power generation power with at least one set of torque and speed.

[0091] In some embodiments, the power generation efficiency curve of the vehicle can reflect the different power generation efficiencies corresponding to the case where the vehicle's range extender generates the same power generation according to multiple torques and multiple speeds; it can be understood that the same power generation can be obtained by different torques and different speeds, wherein the efficiency of the same power generation generated by each set of torques and speeds is different; illustratively, the power generation by speed and torque is shown in formula (1).

[0092]

[0093] Among them, P is the power generation, T is the torque of the generator of the range extender, and N is the speed of the generator of the range extender.

[0094] Step S602: determining a target torque and a target speed corresponding to the target power generation based on the power generation efficiency curve.

[0095] In some embodiments, as can be seen from formula (1), the same power generation power can be obtained according to the combination of different speeds and torques. For example, if the power generation power is 100W, when the torque is 955N*M, the speed can be 100r / min; when the torque is 100N*M, the speed is 955r / min. For the above two sets of torques and speeds, a power generation power of 100W can be obtained, but the efficiency of obtaining 100W is different. Therefore, according to the efficiency of the same power generation power obtained at different torques and speeds in the power generation efficiency curve, the torque and speed with the highest efficiency for obtaining the target power generation power are obtained as the target torque and target speed.

[0096] Step S603: Control the range extender to generate electricity at the target torque and the target speed.

[0097] In some embodiments, the range extender of the vehicle includes an engine and a generator, and the target power generation power of the vehicle is obtained by controlling the generator of the range extender to operate at the target speed and controlling the engine of the range extender to operate with the target torque.

[0098] In the embodiment of the present application, the target torque and target speed for obtaining the target power generation with optimal efficiency are determined through the power generation efficiency curve of the vehicle, the generator of the range extender is controlled to operate at the target speed, and the engine of the range extender is controlled to operate at the target torque, so as to obtain the target power generation of the vehicle with the highest efficiency, thereby improving the power generation efficiency of the vehicle and reducing the fuel consumption of the vehicle.

[0099] An exemplary application of the control method provided in an embodiment of the present application in a practical scenario is described below.

[0100] Extended-range new energy vehicles are favored by consumers because they can meet consumers' needs for pure electric drive for short-distance travel, low vehicle cost and environmental protection, while solving the problem of mileage anxiety for long-distance travel. They are developing rapidly in China, and their sales and market share continue to rise. How to improve the power generation efficiency of the range extender, reduce fuel consumption, maximize the advantages of the extended-range vehicle, and reduce consumers' vehicle costs are the key to further improving the advantages of extended-range new energy vehicles. The embodiment of the present application optimizes the range extender's power generation strategy through an algorithm, improves the range extender's power generation efficiency, reduces fuel consumption, and increases the vehicle's range while reducing vehicle costs.

[0101] Existing range-extended vehicles only calculate the power generation according to the difference between the target state of charge (SOC) set by the driver and the actual state of charge and the real-time vehicle speed to meet the driver's SOC maintenance requirements, causing the range extender to work in a non-efficient range part of the time. Even if it works in a highly efficient range, the range extender may charge the battery first and then generate electricity, resulting in higher fuel consumption, poorer economy, increased vehicle use costs for consumers, and unnecessary environmental pollution.

[0102] The embodiment of the present application adds the dimension of vehicle power demand based on the difference between the target state of charge and the actual state of charge and the real-time vehicle speed, calculates the target power generation, and reduces fuel consumption while maintaining the target SOC. First, based on the vehicle speed, the three intervals are divided into a low speed interval [0,30], a medium speed interval (30,100], and a high speed interval (100,180]. In the low speed interval, the target power generation is calculated based on the difference between the target SOC and the actual SOC and the vehicle speed, and the speed-following power generation is performed; in the medium speed interval, the target power generation is calculated based on the difference between the target SOC and the actual SOC and the vehicle power demand, and fixed-point power generation is performed; in the high speed interval, the target power generation is calculated based on the difference between the target SOC and the actual SOC and the vehicle power demand, and power-following power generation is performed.

[0103] Please refer to Figure 7 , Figure 7 A schematic diagram of an implementation flow of a control method provided in an embodiment of the present application is shown in FIG. Figure 7 As shown, including steps S701 to S710, the combination Figure 7 The steps shown are explained.

[0104] Step S701: Obtain the real-time speed, real-time SOC and target SOC of the vehicle.

[0105] Step S702: Determine the speed range in which the real-time vehicle speed lies.

[0106] In some embodiments, the vehicle speed interval includes at least one of the following: a low speed interval, a medium speed interval, and a high speed interval (corresponding to the second speed interval, the first speed interval, and the third speed interval in the above embodiments, respectively); illustratively, the low speed interval may be [0, 30], the medium speed interval may be (30, 100], and the high speed interval may be (100, 180].

[0107] Step S703: When the real-time vehicle speed is in the low vehicle speed range, vehicle speed following power generation is performed.

[0108] Step S704: determine the target power generation according to the difference between the target SOC and the actual SOC and the real-time vehicle speed.

[0109] In some embodiments, when the real-time vehicle speed is in a low speed range, speed-following power generation is performed; the target power generation power is calculated by looking up a table based on the difference between the target SOC and the actual SOC (corresponding to the above-mentioned target state of charge and the real-time state of charge) and the real-time vehicle speed, that is, the greater the SOC difference, the greater the power generation power, and the higher the vehicle speed, the greater the power generation power. This power generation method can take into account both power conservation and noise, vibration and harshness (NVH) at the same time; wherein, a power reference table is generated based on multiple power generation power at different target SOC and actual SOC differences and different real-time vehicle speeds obtained through experiments, and the target power generation power is determined based on the difference between the target SOC and the actual SOC and the real-time vehicle speed according to the power reference table.

[0110] Step S705: When the real-time vehicle speed is in the medium speed range, fixed-point power generation is performed.

[0111] Step S706: Obtain the required power of the vehicle, and determine the target power generation power according to the difference between the target SOC and the actual SOC and the required power.

[0112] In some embodiments, when the real-time vehicle speed is in a medium-speed range, fixed-point power generation is performed, and the target power generation power is calculated based on the difference between the target SOC and the actual SOC and the required power of the vehicle.

[0113] In some embodiments, when the vehicle demand power is less than the low power generation point, the target power generation power is determined as the low power generation point.

[0114] In some embodiments, when the vehicle demand power is greater than the low power generation point and less than the medium power generation point, if the difference between the target SOC and the actual SOC is large, the target power generation power is determined as the medium power generation point; when the vehicle demand power is greater than the low power generation point and less than the medium power generation point, if the difference between the target SOC and the actual SOC is small, the target power generation power is determined as the low power generation point.

[0115] In some embodiments, when the vehicle demand power is greater than the middle power generation point and less than the high power generation point, if the difference between the target SOC and the actual SOC is large, the target power generation power is determined as the high power generation point; when the vehicle demand power is greater than the middle power generation point and less than the high power generation point, if the difference between the target SOC and the actual SOC is small, the target power generation power is determined as the middle power generation point.

[0116] In some embodiments, when the vehicle demand power is greater than the high power generation point, the target power generation power is determined as the high power generation point.

[0117] Step S707: When the real-time vehicle speed is in the high speed range, power following power generation is performed.

[0118] Step S708: Determine the target power generation according to the difference between the target SOC and the actual SOC.

[0119] In some embodiments, when the real-time vehicle speed is in a high speed range, power following power generation is performed; the target power generation power is calculated by looking up a table based on the difference between the target SOC and the actual SOC, that is, the greater the SOC difference, the greater the power generation power.

[0120] Step S709: determining the final target power generation power based on the low power generation point, the medium power generation point, and the high power generation point.

[0121] In some embodiments, according to the speed range in which the real-time vehicle speed is located, the target power generation powers in the low, medium and high intervals are integrated into the final target power generation power output; among them, one real-time vehicle speed can obtain three target power generation powers, and according to the interval in which the current vehicle speed is located, the target power generation power calculated by the corresponding vehicle speed is selected.

[0122] In some embodiments, when the real-time vehicle speed changes, the final target power generation is determined by the power generation corresponding to the speed before the vehicle changes and the power generation corresponding to the speed after the change; for example, if the speed switches from 20KM / H to 50KM / H, and the power generation switches from 20W to 50W, then the final target power generation is 20W+(50-30)×n%W, where n is the preset change rate, for example, if n is 20, then the final target power generation is 20W+6W=26W.

[0123] In some embodiments, when the real-time vehicle speed changes, the final target power generation can be determined by presetting the power generation change according to the power generation corresponding to the speed before the change and the power generation corresponding to the speed after the change; for example, if the speed switches from 20KM / H to 50KM / H, and the power generation switches from 20W to 50W, the preset power generation change is 5W, and the final target power generation is 20W+5W=25W.

[0124] Step S710: Determine the speed and torque of the range extender of the vehicle.

[0125] In some embodiments, the speed and torque point of the power generation of the range extender are determined according to the calculated final target power generation and the power generation efficiency curve of the range extender; wherein the power generation efficiency curve is used to characterize the efficiency of the range extender in generating the same power generation according to at least one set of torque and speed; and the range extender is controlled to generate electricity at the determined speed and torque.

[0126] In the embodiment of the present application, by dividing the vehicle speed into three intervals of low, medium and high, in the commonly used medium speed interval, three power generation points are selected according to the efficiency table of the range extender, and fixed-point power generation is performed, and the power generation point is determined according to the difference between the target SOC and the actual SOC and the power required by the whole vehicle, so that the range extender is in a high-efficiency power generation point for power generation. On the basis of ensuring that the target SOC can be maintained, the range extender is in a high-efficiency power generation point in the commonly used vehicle speed interval (medium speed interval), thereby reducing fuel consumption, reducing consumers' vehicle use costs, and reducing emissions and environmental pollution.

[0127] Figure 8 A schematic diagram of the structure of a control device provided in an embodiment of the present application is shown in FIG. Figure 8 As shown, the control device 800 includes: an acquisition module 801, a determination module 802, and a control module 803, wherein: the acquisition module 801 is used to acquire the required power of the vehicle when the real-time speed of the vehicle is in a first speed range; the determination module 802 is used to determine the first power generation power of the vehicle based on the required power and at least two preset power generation powers; wherein, in the first speed range, the power generation efficiency of the range extender generated by the at least two preset power generation powers is higher than the power generation efficiency of the range extender generated by other power generation powers; the control module 803 is used to control the range extender of the vehicle to generate electricity based on the first power generation power.

[0128] In some embodiments, the at least two preset power generation powers include a first preset power generation power and a second preset power generation power; the second preset power generation power is greater than the first preset power generation power; the determination module 802 is also used to determine the first preset power generation power as the first power generation power when the required power is less than the first preset power generation power; and to determine the second preset power generation power as the first power generation power when the required power is greater than the second preset power generation power.

[0129] In some embodiments, the at least two preset power generation powers also include a third preset power generation power; the second preset power generation power is greater than the third preset power generation power; the third preset power generation power is greater than the first preset power generation power; the determination module 802 is also used to obtain the target state of charge and real-time state of charge of the vehicle; when the required power is greater than or equal to the first preset power generation power and less than the third preset power generation power, the first power generation power is determined based on the difference between the target state of charge and the real-time state of charge; when the required power is greater than or equal to the third preset power generation power and less than the second preset power generation power, the first power generation power is determined based on the difference between the target state of charge and the real-time state of charge.

[0130] In some embodiments, the determination module 802 is also used to determine the first power generation power based on the target state of charge, the real-time state of charge and the real-time speed when the real-time vehicle speed is in a second vehicle speed range; and to determine the first power generation power based on the target state of charge and the real-time state of charge when the real-time vehicle speed is in a third vehicle speed range; wherein the first vehicle speed range is greater than the second vehicle speed range; and the third vehicle speed range is greater than the first vehicle speed range.

[0131] In some embodiments, the control module 803 is also used to obtain a second power generation of the vehicle; the second power generation represents the historical power generation of the vehicle; determine the target power generation of the range extender based on the first power generation and the second power generation; and control the range extender to generate electricity at the target power generation.

[0132] In some embodiments, the control module 803 is also used to determine the power change value of the range extender based on the difference between the first generated power and the second generated power and a preset change rate; the power generation efficiency of the range extender obtained at the preset change rate is higher than the power generation efficiency of the range extender obtained at other change rates; based on the second generated power and the power change value, the target generated power is determined.

[0133] In some embodiments, the control module 703 is also used to obtain a power generation efficiency curve of the vehicle; the power generation efficiency curve is used to characterize the efficiency of the range extender in obtaining the same power generation power with at least one set of torque and speed; based on the power generation efficiency curve, a target torque and a target speed corresponding to the target power generation power are determined; and the range extender is controlled to generate electricity with the target torque and the target speed.

[0134] The description of the above device embodiment is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. In some embodiments, the functions or modules included in the device provided in the embodiment of the present application can be used to execute the method described in the above method embodiment. For technical details not disclosed in the device embodiment of the present application, please refer to the description of the method embodiment of the present application for understanding.

[0135] It should be noted that in the embodiment of the present application, if the above method is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, which is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a disk or an optical disk. In this way, the embodiment of the present application is not limited to any specific hardware, software or firmware, or any combination of hardware, software, and firmware.

[0136] An embodiment of the present application provides a computer device, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and when the processor executes the program, some or all of the steps in the above method are implemented.

[0137] The embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, some or all of the steps in the above method are implemented. The computer-readable storage medium can be transient or non-transient.

[0138] An embodiment of the present application provides a computer program, including a computer-readable code. When the computer-readable code is run in a computer device, a processor in the computer device executes some or all of the steps for implementing the above method.

[0139] The embodiment of the present application provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and when the computer program is read and executed by a computer, some or all of the steps in the above method are implemented. The computer program product can be implemented specifically by hardware, software or a combination thereof. In some embodiments, the computer program product is specifically embodied as a computer storage medium, and in other embodiments, the computer program product is specifically embodied as a software product, such as a software development kit (SDK) and the like.

[0140] It should be noted here that the description of the various embodiments above tends to emphasize the differences between the various embodiments, and the same or similar aspects can be referenced to each other. The description of the above device, storage medium, computer program and computer program product embodiments is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the embodiments of the device, storage medium, computer program and computer program product of this application, please refer to the description of the method embodiment of this application for understanding.

[0141] Fig. 9 A hardware entity diagram of a computer device provided in an embodiment of the present application is shown in FIG. Fig. 9 As shown, the hardware entity of the computer device 900 includes: a processor 901 and a memory 902, wherein the memory 902 stores a computer program that can be run on the processor 901, and the processor 901 implements the steps in the method of any of the above embodiments when executing the program.

[0142] The memory 902 stores computer programs that can be run on the processor. The memory 902 is configured to store instructions and applications executable by the processor 901. It can also cache data to be processed or processed by the processor 901 and various modules in the computer device 900 (for example, image data, audio data, voice communication data, and video communication data). This can be achieved through flash memory (FLASH) or random access memory (Random Access Memory, RAM).

[0143] When the processor 901 executes the program, the steps of any of the above methods are implemented. The processor 901 generally controls the overall operation of the computer device 900.

[0144] An embodiment of the present application provides a computer storage medium, which stores one or more programs. The one or more programs can be executed by one or more processors to implement the steps of the method of any of the above embodiments.

[0145] It should be noted here that the description of the above storage medium and device embodiments is similar to the description of the above method embodiments, and has similar beneficial effects as the method embodiments. For technical details not disclosed in the storage medium and device embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

[0146] The processor may be at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a Central Processing Unit (CPU), a controller, a microcontroller, and a microprocessor. It is understandable that the electronic device that implements the functions of the processor may also be other, and the embodiments of the present application are not specifically limited.

[0147] The above-mentioned computer storage medium / memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory (Flash Memory), a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM) and the like; it can also be various terminals including one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc.

[0148] It should be understood that "one embodiment" or "an embodiment" mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the size of the serial number of each step / process mentioned above does not mean the order of execution, and the execution order of each step / process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. The serial numbers of the embodiments of the present application mentioned above are for description only and do not represent the advantages and disadvantages of the embodiments.

[0149] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0150] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0151] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0152] In addition, all functional units in the embodiments of the present application can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units. A person of ordinary skill in the art can understand that all or part of the steps of the above method embodiments can be completed by hardware related to program instructions, and the above program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above method embodiments are executed; and the above storage medium includes: mobile storage devices, read-only memory (ROM), disks or optical disks, etc. Various media that can store program codes.

[0153] Alternatively, if the above-mentioned integrated unit of the present application is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can essentially or in other words, the part that contributes to the relevant technology can be embodied in the form of a software product, which is stored in a storage medium and includes a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0154] The above is only an implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A control method, characterized in that: include: When the real-time vehicle speed is within a first vehicle speed range, obtaining the required power of the vehicle; Determining a first power generation power of the vehicle based on the required power and at least two preset power generation powers; wherein, in the first vehicle speed interval, the power generation efficiency of the range extender generated by the at least two preset power generation powers is higher than the power generation efficiency of the range extender generated by other power generation powers; Based on the first generated power, controlling the range extender of the vehicle to generate electricity; The at least two preset power generation powers include a first preset power generation power and a second preset power generation power; the second preset power generation power is greater than the first preset power generation power; and determining the first power generation power of the vehicle based on the required power and the at least two preset power generation powers includes: When the required power is less than the first preset power generation power, determining the first preset power generation power as the first power generation power; When the required power is greater than the second preset power generation power, the second preset power generation power is determined as the first power generation power.

2. The method according to claim 1, characterized in that The at least two preset power generation powers also include a third preset power generation power; the second preset power generation power is greater than the third preset power generation power; the third preset power generation power is greater than the first preset power generation power; The determining the first power generation power of the vehicle based on the required power and at least two preset power generation powers comprises: Obtain the target state of charge and real-time state of charge of the vehicle; When the required power is greater than or equal to the first preset power generation power and less than the third preset power generation power, determining the first power generation power based on the difference between the target state of charge and the real-time state of charge; When the required power is greater than or equal to the third preset power generation power and less than the second preset power generation power, the first power generation power is determined based on a difference between the target state of charge and the real-time state of charge.

3. The method according to claim 1, characterized in that: The method further comprises: Obtain the target state of charge and real-time state of charge of the vehicle; When the real-time vehicle speed is in the second vehicle speed interval, the first generated power is determined based on the target state of charge, the real-time state of charge and the real-time vehicle speed in combination with a first preset power table; the first preset power table represents the efficiency of the vehicle generating power at different generated powers at different speeds and different differences between the target state of charge and the real-time state of charge; When the real-time vehicle speed is in a third vehicle speed interval, the first power generation power is determined based on the target state of charge and the real-time state of charge in combination with a second preset power table; the second preset power table represents the efficiency of the vehicle generating power at different power generation powers under different differences between the target state of charge and the real-time state of charge; Among them, the first vehicle speed range is greater than the second vehicle speed range; the third vehicle speed range is greater than the first vehicle speed range.

4. The method according to any one of claims 1 to 3, characterized in that: The controlling the range extender of the vehicle to generate electricity based on the first generated power includes: Acquire a second generated power of the vehicle; the second generated power represents a historical generated power of the vehicle; determining a target power generation power of the range extender based on the first power generation power and the second power generation power; The range extender is controlled to generate electricity at the target power generation.

5. The method according to claim 4, characterized in that Determining a target power generation power of a range extender of the vehicle based on the first power generation power and the second power generation power includes: determining a power change value of the range extender based on a difference between the first generated power and the second generated power and a preset change rate; the power generation efficiency of the range extender obtained at the preset change rate is higher than the power generation efficiency of the range extender obtained at other change rates; The target generated power is determined based on the second generated power and the power change value.

6. The method according to claim 4, characterized in that The controlling the range extender to generate electricity at the target power generation comprises: Obtaining a power generation efficiency curve of the vehicle; the power generation efficiency curve is used to characterize the efficiency of the range extender in obtaining the same power generation power with at least one set of torque and speed; Determining a target torque and a target speed corresponding to the target power generation based on the power generation efficiency curve; The range extender is controlled to generate electricity at the target torque and the target speed.

7. A control device, characterized in that: The device comprises: An acquisition module, used for acquiring the required power of the vehicle when the real-time vehicle speed is within a first vehicle speed interval; a determination module, configured to determine a first power generation power of the vehicle based on the required power and at least two preset power generation powers; wherein, in the first vehicle speed interval, the power generation efficiency of the range extender generated by the at least two preset power generation powers is higher than the power generation efficiency of the range extender generated by other power generation powers; a control module, configured to control a range extender of the vehicle to generate electricity based on the first generated power; The determination module is also used to determine the first preset power generation power as the first power generation power when the required power is less than the first preset power generation power; and to determine the second preset power generation power as the first power generation power when the required power is greater than the second preset power generation power.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program executable on the processor, wherein: When the processor executes the program, the steps in the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps in the method according to any one of claims 1 to 6 are implemented.

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