Control method and device of vehicle range extender, electronic equipment and storage medium

Abstract

The application relates to the technical field of vehicle range extending control, and discloses a control method and device of a vehicle range extender, an electronic device and a storage medium, which comprise the following steps: predicting the predicted power of the electric accessories of a vehicle in a current period and the predicted power in a historical period based on a preset rule; obtaining the accessory correction power of the range extender in the current period based on the predicted power in the current period, and determining the power difference between the predicted power in the historical period and the actual power in the historical period; the accessory correction power is the sum of the predicted power in the current period and the basic power required by the vehicle to drive in the current period; the power adjustment amount is determined based on the power difference, the accessory correction power is adjusted to obtain target power generation, and the range extender is controlled to work at the target power generation in the current period. Therefore, the power generation control of the range extender fully considers the power consumption of the electric accessories, and fully considers the factors of inaccurate prediction of the electric accessories, so that the power generation of the range extender is more suitable for the actual power consumption of the vehicle.

Description

Technical Field

[0001] This application relates to the field of vehicle range extender control technology, specifically to a control method, device, electronic equipment, and storage medium for a vehicle range extender. Background Technology

[0002] Range-extended new energy vehicles are equipped with range extenders. When the battery pack's charge level falls below a threshold, the range extender generates electricity to power the drive motor, thus ensuring that the battery pack's charge level remains near the threshold.

[0003] Currently, the power generation control strategy of range extenders does not take into account the impact of electric accessories on the vehicle's power consumption. As a result, the power generated by the range extender is often less than the power required by the vehicle, which in turn causes the battery pack's power to continuously decrease or even fall below the threshold power, affecting the vehicle's power retention performance. Summary of the Invention

[0004] In view of the above problems, this application provides a control method, device, electronic device and storage medium for a vehicle range extender. The power generation control of the range extender fully considers the power consumption of the electric accessories and fully considers the factors of inaccurate prediction of the electric accessories, so that the power generation of the range extender is more in line with the actual power consumption of the vehicle.

[0005] The first aspect of this application provides a control method for a vehicle range extender, comprising: predicting the predicted power of the vehicle's electric accessories in the current time period based on preset rules, and obtaining the predicted power of the electric accessories in a historical time period based on preset rules; wherein the end time of the historical time period and the start time of the current time period are both the current time, and the duration of the historical time period and the current time period are equal; obtaining the accessory correction power of the vehicle's range extender in the current time period based on the predicted power of the current time period, and determining the power difference between the predicted power of the historical time period and the actual power of the electric accessories in the historical time period; wherein the accessory correction power is the sum of the predicted power of the current time period and the basic power required for the vehicle to drive in the current time period; determining a power adjustment amount based on the power difference, and adjusting the accessory correction power based on the power adjustment amount to obtain a target power generation, and controlling the range extender to operate at the target power generation in the current time period; wherein the larger the power difference, the larger the power adjustment amount.

[0006] In some specific embodiments, the electrical accessories include high-voltage accessories and low-voltage accessories. The predicted power of the electrical accessories in the current time period is the sum of the predicted power of the high-voltage accessories and the low-voltage accessories in the current time period. The step of predicting the predicted power of the vehicle's electrical accessories in the current time period based on preset rules includes: obtaining the current setting parameters of the high-voltage accessories, and obtaining the current parameters and target parameters of the adjustment object of the high-voltage accessories; wherein, the current parameters and target parameters are physical quantities that measure the adjustment object; predicting the power change relationship of the high-voltage accessories over time based on the setting parameters, current parameters, and target parameters, and taking the power corresponding to the current time period in the power change relationship as the predicted power of the high-voltage accessories in the current time period.

[0007] In some specific embodiments, the electrical accessories include high-voltage accessories and low-voltage accessories, and the predicted power of the electrical accessories in the current time period is the sum of the predicted power of the high-voltage accessories and the low-voltage accessories in the current time period. The step of predicting the predicted power of the vehicle's electrical accessories in the current time period based on preset rules includes: obtaining a first operating power of the low-voltage accessories that has been operating for more than a preset duration in a historical time period, or obtaining a second operating power of the low-voltage accessories at the current moment; and using the first operating power or the second operating power as the predicted power of the low-voltage accessories in the current time period.

[0008] In some specific embodiments, the high-pressure accessory is an air conditioning system, and the object regulated by the high-pressure accessory is the passenger cabin temperature; the steps of obtaining the current setting parameters of the high-pressure accessory and obtaining the current parameters and target parameters of the object regulated by the high-pressure accessory include: obtaining the functional mode, circulation mode and set temperature of the air conditioning system, and obtaining the current temperature and target temperature of the passenger cabin of the air conditioning system; wherein, the functional mode includes a cooling mode and a heating mode, and the circulation mode includes an internal circulation mode and an external circulation mode.

[0009] In some specific embodiments, the step of predicting the power of the vehicle's electric accessories in the current time period based on preset rules includes: obtaining the actual power of the vehicle's electric accessories in historical time periods, and using the actual power of historical time periods as the predicted power of the electric accessories in the current time period.

[0010] In some specific embodiments, the steps of determining the power adjustment amount based on the power difference and adjusting the auxiliary correction power based on the power adjustment amount to obtain the target power generation include: if the predicted power of a historical period is greater than the actual power of the historical period, then a negative power adjustment amount is determined based on the power difference, and the sum of the power adjustment amount and the auxiliary correction power is used as the target power generation; if the predicted power of a historical period is less than the actual power of the historical period, then a positive power adjustment amount is determined based on the power difference, and the sum of the power adjustment amount and the auxiliary correction power is used as the target power generation.

[0011] In some specific embodiments, the step of determining a positive power adjustment amount based on the power difference when the predicted power of a historical period is detected to be less than the actual power of the historical period includes: when the predicted power of a historical period is detected to be less than the actual power of the historical period, obtaining the vehicle's preset NVH standard for the current period and the maximum power generation of the range extender under the preset NVH standard; when the sum of the power difference and the auxiliary correction power is detected to be greater than the maximum power generation, determining a positive power adjustment amount that is less than the power difference.

[0012] A second aspect of this application provides a control device for a vehicle range extender, comprising: an acquisition module, configured to predict the predicted power of the vehicle's electric accessories in the current time period based on preset rules, and acquire the predicted power of the electric accessories in a historical time period based on preset rules; wherein the end time of the historical time period and the start time of the current time period are both the current time, and the duration of the historical time period and the current time period are equal; and to acquire the accessory correction power of the vehicle's range extender in the current time period based on the predicted power of the current time period, and determine the power difference between the predicted power of the historical time period and the actual power of the electric accessories in the historical time period; wherein the accessory correction power is the sum of the predicted power of the current time period and the basic power required for the vehicle to drive in the current time period; and a control module, configured to determine a power adjustment amount based on the power difference, and adjust the accessory correction power based on the power adjustment amount to obtain a target power generation, and control the range extender to operate at the target power generation in the current time period; wherein the larger the power difference, the larger the power adjustment amount.

[0013] A third aspect of this application provides an electronic device, comprising: a processor; and a memory for storing a computer program, wherein the computer program, when executed by the processor, implements a control method for a vehicle range extender as described above.

[0014] A fourth aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements a control method for a vehicle range extender as described above.

[0015] The beneficial technical effects of this application are as follows: Based on the control method, device, electronic device, and storage medium for the vehicle range extender provided in this application, the method includes: predicting the predicted power of the vehicle's electric accessories in the current time period based on preset rules, and obtaining the predicted power of the electric accessories in historical time periods based on preset rules; wherein the end time of the historical time period and the start time of the current time period are both the current time, and the duration of the historical time period and the current time period are equal; obtaining the accessory correction power of the vehicle's range extender in the current time period based on the predicted power of the current time period, and determining the power difference between the predicted power of the historical time period and the actual power of the electric accessories in the historical time period; wherein the accessory correction power is the sum of the predicted power of the current time period and the basic power required for the vehicle to drive in the current time period; determining the power adjustment amount based on the power difference, and adjusting the accessory correction power based on the power adjustment amount to obtain the target power generation, and controlling the range extender to operate at the target power generation in the current time period; wherein the larger the power difference, the larger the power adjustment amount. Therefore, this application can realize the power generation control of the range extender based on the accessory correction power, so that the power generation control of the range extender fully considers the power consumption of the electric accessories. Furthermore, during the current period, the power of the electric accessories can be adjusted based on the difference between the predicted power and the actual power of the electric accessories in the historical period. This fully takes into account the factors of inaccurate prediction of electric accessories, making the power generation of the range extender more in line with the actual power consumption of the vehicle.

[0016] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0017] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0018] Figure 1 This is a flowchart illustrating an embodiment of the control method for a vehicle range extender provided in this application;

[0019] Figure 2 This is a schematic diagram of the operating timeline of a vehicle range extender.

[0020] Figure 3 This is a flowchart illustrating another embodiment of the control method for the vehicle range extender provided in this application;

[0021] Figure 4 This is a flowchart illustrating another embodiment of the control method for the vehicle range extender provided in this application;

[0022] Figure 5 This is a flowchart illustrating another embodiment of the control method for the vehicle range extender provided in this application;

[0023] Figure 6 This is a flowchart illustrating another embodiment of the control method for the vehicle range extender provided in this application;

[0024] Figure 7 This is a structural block diagram of an embodiment of the control device for a vehicle range extender provided in this application;

[0025] Figure 8 This is a schematic diagram of the structural framework of an embodiment of the electronic device provided in this application;

[0026] Figure 9 This is a schematic diagram of the structural framework of an embodiment of the computer-readable storage medium provided in this application. Detailed Implementation

[0027] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited to the embodiments set forth herein. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0028] If the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, if the word "and / or" appears throughout the text, it means including three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0029] The first aspect of this application provides a control method for a vehicle range extender. Figure 1 This is a schematic flowchart of an embodiment of the control method for the vehicle range extender provided in this application. (In conjunction with...) Figure 1 This method includes the following steps:

[0030] S11: Predict the power of the vehicle's electric accessories in the current time period based on preset rules, and obtain the predicted power of the electric accessories in the historical time period based on preset rules; wherein the end time of the historical time period and the start time of the current time period are both the current time, and the duration of the historical time period and the current time period are equal.

[0031] If the vehicle's battery pack's real-time charge level falls below a threshold charge level while the vehicle is in motion, the range extender will activate to generate electricity to power the vehicle's drive motor. The threshold charge level is determined by the vehicle's specific configuration and driving mode; different vehicle configurations and driving modes may correspond to different threshold charge levels.

[0032] During the operation of the range extender, the time period after the start of operation is divided into multiple adjacent time periods. Figure 2 This is a schematic diagram of the operating timeline of a vehicle range extender, combined with... Figure 2 The range extender's operating timeline includes multiple adjacent time periods with the same duration. The end time of a historical time period and the start time of the current time period are both the current time. Figure 2 Point B is located in the middle. At this point, the historical time period and the current time period are two adjacent time periods for the vehicle, and the current moment is the intersection of the historical time period and the current time period.

[0033] The preset rule is a pre-set rule used to predict the power of vehicle electrical accessories. In this embodiment, the preset rule is not specifically limited and can be any relevant rule in the prior art. Since the starting time of the current time period is the current time, predicting the power of the vehicle's electrical accessories in the current time period based on the preset rule means predicting the power of the vehicle's electrical accessories in the current time period based on the preset rule at the current time. The predicted power can be the predicted average power within the current time period.

[0034] It should be understood that as the range extender operates and this method is executed, the current time period becomes a historical time period. (Combined with...) Figure 2 If we are currently at point A, then Figure 2 The historical time period marked in the diagram represents the current time. At point A, the predicted power of the electric accessories can be predicted using preset rules. This predicted power is saved and used as the predicted power for the historical time period at the current time of point B. Therefore, the predicted power of the electric accessories can be predicted using preset rules as soon as the range extender starts operating, thus obtaining the predicted power for each time period during the range extender's operation.

[0035] S12: Based on the predicted power of the current time period, obtain the auxiliary correction power of the vehicle's range extender in the current time period, and determine the power difference between the predicted power of the historical time period and the actual power of the electric accessory in the historical time period; wherein, the auxiliary correction power is the sum of the predicted power of the current time period and the basic power required for the vehicle to drive in the current time period.

[0036] After obtaining the predicted power of the electric accessories for the current time period, the predicted power is added to the base power required for the vehicle to drive in the current time period to obtain the accessory correction power. The power required for the vehicle to drive in the current time period can be obtained in real time or predicted; no specific restriction is imposed here.

[0037] It should be understood that in existing technologies, the power output of a range extender is determined directly based on the baseline power required for driving at the current time, without taking into account the power of the electric accessories. However, during the operation of the vehicle's range extender, the electric accessories primarily utilize the battery pack's electrical energy. Therefore, if the power consumption of the electric accessories is not considered, the power generated by the range extender may only be enough to power the vehicle but not enough to power the accessories. This would lead to a continuous decrease in the battery pack's charge, resulting in poor battery retention performance for the vehicle.

[0038] This embodiment considers the power consumption of electrical accessories and controls the range extender's power generation by monitoring the power output of these accessories. This step determines the power difference between the predicted power for a historical period and the actual power of the electrical accessories during that period. It should be understood that the predicted power for a historical period is obtained through rule-based prediction and often differs from the actual power of the electrical accessories during that period. At the current time point (the starting point of the current period), historical operating data of the electrical accessories can be obtained, and the actual power of the electrical accessories during that historical period can be determined based on this data. At this point, the power difference between the predicted and actual power can be determined, reflecting the magnitude of the discrepancy between the two.

[0039] S13: Determine the power adjustment amount based on the power difference, and adjust the accessory correction power based on the power adjustment amount to obtain the target power generation, and control the range extender to operate at the target power generation in the current period; wherein, the larger the power difference, the larger the power adjustment amount.

[0040] Based on the above, if the historical period is the first operating period of the range extender, since there were no operating periods before this historical period, the power difference cannot be obtained, and the adjustment amount will not be determined based on the power difference. Alternatively, the power difference can be considered as 0, and the corresponding power adjustment amount can be considered as 0. That is, the accessory correction power will not be adjusted in this case, and the target power generation is equal to the accessory correction power. In other words, the range extender operates at the accessory correction power in the first operating period. Since the accessory correction power includes the predicted power of the electric accessories, if the actual power of the electric accessories in the historical period is inconsistent with the predicted power, the historical period will actually generate more or less power.

[0041] Because there was more or less electricity generated in the historical period, in order to compensate for the over- or under-generated electricity in the historical period, this step determines the power adjustment amount based on the power difference in the current period, and then adjusts the auxiliary correction power in the current period through the power adjustment amount, thereby obtaining the target power generation. When the range extender operates at the target power generation, it actually achieves compensation for the over- or under-generated electricity in the historical period.

[0042] It should be understood that the determined power difference is a physical quantity characterizing the degree of over- or under-generation. The larger the power difference, the greater the difference between the predicted and actual power of the electric accessories in the historical period, indicating a greater over- or under-generation during that period. In this step, by setting a larger power difference corresponding to a larger power adjustment, the greater the over- or under-generation in the historical period, the greater the degree of power adjustment to the accessories in the current period, thus adaptively compensating for the over- or under-generation in the historical period. This method ensures that the total electricity generated by the range extender is approximately the same as the sum of the electricity required for vehicle driving and the electricity required for electric accessories operation, thereby guaranteeing good battery retention and fuel efficiency.

[0043] Combination Figure 2 As the range extender continues to operate, if the current time reaches the time corresponding to point C, then... Figure 2 The current time period marked has been changed to a historical time period. Figure 2 The marked future time period becomes the current time period. Because... Figure 2 If the future time period marked in the figure becomes the current time period, and the current time period becomes the historical time period, then the target power generation of the future time period (that is, the current time period relative to point C) can be determined using the above method.

[0044] Continue to combine Figure 2As mentioned above, the target power generation for the current period is the adjusted auxiliary power, which includes the predicted power of the auxiliary power. The actual power of the auxiliary power will also exist during the current period, resulting in a power difference – meaning there will be over- or under-generation during the current period. Although the current period compensates for over- or under-generation in historical periods, the issue of over- or under-generation still exists. The over- or under-generation in the current period will be compensated for in future periods through adjustments to the auxiliary power adjustment.

[0045] In some specific embodiments, the electrical accessories include high-voltage accessories and low-voltage accessories. The predicted power of the electrical accessories in the current time period is the sum of the predicted power of the high-voltage accessories and the low-voltage accessories in the current time period. High-voltage accessories may include air conditioning systems, battery pack heating and cooling systems, etc. In some application scenarios, high-voltage accessories may specifically refer to some electrical components in these systems, such as PTCs and compressors. Low-voltage accessories may be some low-voltage electrical components of the vehicle, such as displays and lights, without specific limitations.

[0046] Figure 3 This is a flowchart illustrating yet another embodiment of the control method for the vehicle range extender provided in this application. (In conjunction with...) Figure 3 The step of predicting the power of a vehicle's electrical accessories in the current time period based on preset rules includes:

[0047] S21: Obtain the current setting parameters of the high-voltage accessory, and obtain the current parameters and target parameters of the high-voltage accessory's regulating object; wherein, the current parameters and target parameters are physical quantities that measure the regulating object.

[0048] It should be understood that high-voltage accessories operate by regulating specific objects, such as the temperature of the passenger compartment or the battery pack. To achieve this regulation, the user or system sets certain parameters based on specific circumstances, enabling the high-voltage accessories to adjust according to the user's or system's intended settings. The parameters of the high-voltage accessory's object before adjustment are called the current parameters, and the target parameters are the parameters to be achieved after adjustment.

[0049] S22: Based on the set parameters, current parameters, and target parameters, predict the power change relationship of the high-voltage accessory over time, and use the power corresponding to the current time period in the power change relationship as the predicted power of the high-voltage accessory in the current time period.

[0050] It should be understood that after setting the parameters, current parameters, and target parameters, the power of the high-voltage accessory can be predicted based on these parameters; that is, a power-time relationship curve for the high-voltage accessory can be established. Based on this power change relationship, the power corresponding to the current time period can be obtained as the predicted power of the high-voltage accessory for the current time period. For example, after establishing the power-time relationship curve of the high-voltage accessory, the power corresponding to this relationship curve in the current time period can be obtained as the predicted power.

[0051] Figure 4 This is a flowchart illustrating yet another embodiment of the control method for the vehicle range extender provided in this application. (In conjunction with...) Figure 4 The step of predicting the power of a vehicle's electrical accessories in the current time period based on preset rules includes:

[0052] S31: Obtain the first operating power of the low-voltage accessory that has been operating for more than a preset duration within a historical period, or obtain the second operating power of the low-voltage accessory at the current moment.

[0053] The above embodiments define the method for obtaining the predicted power of high-voltage accessories, while this embodiment defines the specific method for obtaining the predicted power of low-voltage accessories.

[0054] It should be understood that low-voltage accessories generally operate at lower power, and their power is usually relatively stable, meaning power fluctuations are not significant. A preset duration can be set, which can be a relatively long period and can be adjusted according to specific circumstances. If a low-voltage accessory operates at its highest power for more than the preset duration within a historical period, it indicates that the accessory has been operating at its highest power for most of that period.

[0055] The current moment is the starting point of the current time period. Since the operating power of the low-voltage accessories does not change significantly, the second operating power at the current moment is taken as the operating power for the current time period, which is actually not much different from the actual power. Furthermore, since the current time period is short and continuously updated, the second operating power will continue to be updated, resulting in minimal error.

[0056] S32: Use the first or second operating power as the predicted power of the low-voltage accessory in the current period.

[0057] Based on the steps described above, using either the first or second operating power as the predicted power can accurately predict the operating power of the low-voltage accessories during the current period. The choice between the first or second operating power depends on the specific circumstances. For example, if the current period is the first period in which the range extender operates, and there is no historical data available, then the second operating power can be used as the predicted power.

[0058] In some specific embodiments, the high-pressure accessory is an air conditioning system, the object of adjustment of the high-pressure accessory is the passenger compartment temperature, the current parameter of the object of adjustment is the current temperature of the passenger compartment, and the target parameter is the target temperature of the passenger compartment. Based on this, the step of obtaining the current setting parameters of the high-pressure accessory and obtaining the current parameters and target parameters of the object of adjustment of the high-pressure accessory, i.e., the above-mentioned step S21, includes:

[0059] The system acquires the function mode, circulation mode, and set temperature of the air conditioning system, and obtains the current temperature and target temperature of the passenger cabin. The function mode includes cooling mode and heating mode, and the circulation mode includes internal circulation mode and external circulation mode.

[0060] It should be understood that users or the air conditioning system can set the air conditioning function mode, circulation mode, and set temperature based on the current temperature and target temperature of the passenger cabin, thereby achieving a pre-defined adjustment effect. For example, if the current temperature of the passenger cabin is 35°C, the target temperature is 26°C, the function mode is cooling mode, the circulation mode is external circulation mode, and the set temperature is 25°C, then the relationship between the power of the air conditioning system and time can be obtained based on these parameters.

[0061] The above embodiments illustrate some methods for obtaining the predicted power of electrical accessories. Below is another different method for obtaining the predicted power of electrical accessories:

[0062] In some specific embodiments, the step of predicting the power of the vehicle's electric accessories in the current time period based on preset rules includes: obtaining the actual power of the vehicle's electric accessories in historical time periods, and using the actual power of historical time periods as the predicted power of the electric accessories in the current time period.

[0063] Specifically, the historical period can be the historical period described in the above embodiments. Since the duration of the historical period and the current period is not long, the actual power of the electrical accessories in the historical period is consistent with the actual power in the current period in most cases. Therefore, the actual power of the historical period can be used as the predicted power of the current period.

[0064] Figure 5 This is a flowchart illustrating yet another embodiment of the control method for the vehicle range extender provided in this application. (In conjunction with...) Figure 5 In some specific embodiments, the steps of determining the power adjustment amount based on the power difference and adjusting the accessory correction power based on the power adjustment amount to obtain the target power generation include:

[0065] S41: If the predicted power for a historical period is found to be greater than the actual power for the historical period, a negative power adjustment amount is determined based on the power difference, and the sum of the power adjustment amount and the supplementary corrected power is used as the target power generation.

[0066] It should be understood that when the predicted power for a historical period is greater than the actual power, it indicates that more electricity will be generated during that historical period. To improve the vehicle's fuel efficiency, less electricity needs to be generated in the current period. Therefore, the power correction for accessories should be reduced in this case.

[0067] In this embodiment, the power adjustment amount is set to a negative value, and the sum of the power adjustment amount and the accessory correction power is used as the target power generation. The accessory correction power can be reduced based on the power adjustment amount, thereby generating less power in the current period and improving the vehicle's fuel efficiency.

[0068] In some specific embodiments, both the power difference and the power adjustment amount are positive values, which can then be converted into negative power adjustment amounts. Furthermore, to achieve fill-in compensation, the power adjustment amount can be set to be equal to the power difference.

[0069] S42: If the predicted power for a historical period is less than the actual power for that historical period, a positive power adjustment amount is determined based on the power difference, and the sum of the power adjustment amount and the supplementary corrected power is used as the target power generation.

[0070] When the predicted power for a historical period is less than the actual power, it indicates that less electricity was generated during that period. Therefore, more electricity needs to be generated in the current period to compensate for the less electricity generated during the historical period. Thus, this embodiment determines a positive power adjustment amount (without needing to convert it to a positive or negative value). By using the sum of the power adjustment amount and the supplementary corrected power as the target power generation, more electricity can be generated in the current period to compensate for the less electricity generated during the historical period.

[0071] Similarly, in order to achieve fill-in compensation, the power adjustment amount can be set to be equal to the power difference.

[0072] Figure 6 This is a schematic flowchart of another embodiment of the control method for the vehicle range extender provided in this application. (In conjunction with...) Figure 6 In some specific embodiments, if the predicted power for a historical period is detected to be less than the actual power for that historical period, the step of determining a positive power adjustment amount based on the power difference includes:

[0073] S51: If the predicted power of a historical period is less than the actual power of the historical period, then obtain the vehicle's preset NVH standard for the current period and the maximum power generation of the range extender under the preset NVH standard.

[0074] Based on the above, when the predicted power for a historical period is less than the actual power for that period, it indicates that less electricity was generated during that period. Therefore, more electricity needs to be generated in the current period to compensate for the power generation during the corresponding historical period.

[0075] The preset NVH (Noise, Vibration, Harshness) standards can be set in advance. Users can select a preset NVH standard as the NVH standard for the current time period to achieve that standard. For the vehicle's NV performance to meet the preset NVH standard, the vehicle's range extender's maximum power generation during the current time period must not exceed its maximum power generation capacity. If it exceeds the maximum power generation capacity, the vehicle's NVH performance may fail to meet the preset NVH standard.

[0076] S52: If the sum of the power difference and the auxiliary correction power is detected to be greater than the maximum power generation, then a power adjustment amount less than the positive value of the power difference is determined.

[0077] It should be understood that, according to the method provided in the above embodiments, the sum of the power adjustment amount and the accessory correction power needs to be used as the target power generation. Furthermore, to achieve fill-in compensation, the power difference is generally used as the power adjustment amount. If the sum of the power difference and the accessory correction power is greater than the maximum power generation, it indicates that using the power difference as the power adjustment amount will likely result in the target power generation exceeding the maximum power generation, potentially causing the vehicle's NVH performance to fail to meet the preset NVH standards. Therefore, the power adjustment amount needs to be set to be less than the power difference. The specific setting of the power adjustment amount can be such that the sum of the power adjustment amount and the accessory correction power is less than or equal to the maximum power generation.

[0078] A second aspect of this application provides a control device 20 for a vehicle range extender. Figure 6 This is a structural block diagram of an embodiment of the control device 20 for the vehicle range extender provided in this application.

[0079] Combination Figure 6 The control device 20 for the vehicle range extender includes an acquisition module 21 and a control module 22. The acquisition module 21 is used to predict the power of the vehicle's electric accessories in the current time period based on preset rules, and to acquire the predicted power of the electric accessories in historical time periods based on preset rules; wherein the end time of the historical time period and the start time of the current time period are both the current time, and the duration of the historical time period and the current time period are equal; and to acquire the accessory correction power of the vehicle's range extender in the current time period based on the predicted power of the current time period, and to determine the power difference between the predicted power of the historical time period and the actual power of the electric accessories in the historical time period; wherein the accessory correction power is the sum of the predicted power of the current time period and the basic power required for the vehicle to drive in the current time period. The control module 22 is used to determine the power adjustment amount based on the power difference, and to adjust the accessory correction power based on the power adjustment amount to obtain the target power generation, and to control the range extender to operate at the target power generation in the current time period; wherein the larger the power difference, the larger the power adjustment amount.

[0080] A third aspect of this application provides an electronic device, comprising: a processor; and a memory for storing a computer program, wherein the computer program, when executed by the processor, implements the control method for the vehicle range extender in any of the above embodiments.

[0081] Figure 7 This is a schematic diagram of the structural framework of an embodiment of the electronic device 500 provided in this application.

[0082] In some specific embodiments, the electronic device 500 includes a central processing unit (CPU) 501 and a read-only memory (ROM) 502. The CPU 501 is a processor, and the ROM 502 is a memory. The CPU 501 can perform various appropriate actions and processes according to a program stored in the ROM 502 or a program loaded from storage portion 508 into random access memory (RAM) 503, such as performing the methods described in the above embodiments. The RAM 503 also stores various programs and data required for system operation. The CPU 501, ROM 502, and RAM 503 are interconnected via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0083] The following components are connected to I / O interface 505: an input section 506 including a keyboard, mouse, etc.; an output section 507 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to I / O interface 505 as needed. Removable media 511, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., are installed on drive 510 as needed so that computer programs read from them can be installed into storage section 508 as needed.

[0084] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program including a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 509, and / or installed from removable medium 511. When the computer program is executed by central processing unit (CPU) 501, it performs various functions defined in the system of this application.

[0085] A fourth aspect of this application provides a computer-readable storage medium 40, Figure 8 This is a schematic diagram of the structural framework of an embodiment of the computer-readable storage medium 40 provided in this application.

[0086] The computer-readable storage medium 40 stores a computer program 41, which, when executed by a processor, implements the control method of the vehicle range extender as described in any of the above embodiments.

[0087] It should be noted that the computer-readable medium 40 shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying a computer-readable computer program. The transmitted data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0088] In summary, the control method, apparatus, electronic device, and storage medium for a vehicle range extender provided in this application include: predicting the predicted power of the vehicle's electric accessories in the current time period based on preset rules, and obtaining the predicted power of the electric accessories in a historical time period based on preset rules; wherein the end time of the historical time period and the start time of the current time period are both the current time, and the duration of the historical time period and the current time period are equal; obtaining the accessory correction power of the vehicle's range extender in the current time period based on the predicted power of the current time period, and determining the power difference between the predicted power of the historical time period and the actual power of the electric accessories in the historical time period; wherein the accessory correction power is the sum of the predicted power of the current time period and the basic power required for the vehicle to drive in the current time period; determining a power adjustment amount based on the power difference, and adjusting the accessory correction power based on the power adjustment amount to obtain a target power generation, and controlling the range extender to operate at the target power generation in the current time period; wherein the larger the power difference, the larger the power adjustment amount. Therefore, this application can realize the power generation control of the range extender based on the accessory correction power, so that the power generation control of the range extender fully considers the power consumption of the electric accessories. Furthermore, during the current period, the power of the electric accessories can be adjusted based on the difference between the predicted power and the actual power of the electric accessories in the historical period. This fully takes into account the factors of inaccurate prediction of electric accessories, making the power generation of the range extender more in line with the actual power consumption of the vehicle.

[0089] The above description is merely a preferred exemplary embodiment of this application and is not intended to limit the implementation of this application. Those skilled in the art can easily make corresponding modifications or alterations based on the main concept and spirit of this application. Therefore, the scope of protection of this application should be determined by the scope of protection claimed in the claims.

Claims

1. A control method for a vehicle range extender, characterized in that, include: The system predicts the power of the vehicle's electric accessories in the current time period based on preset rules, and obtains the predicted power of the electric accessories in historical time periods based on the preset rules; wherein the end time of the historical time period and the start time of the current time period are both the current time, and the duration of the historical time period and the current time period are equal. Based on the predicted power of the current time period, the accessory correction power of the vehicle's range extender in the current time period is obtained, and the power difference between the predicted power of the historical time period and the actual power of the electric accessory in the historical time period is determined; wherein, the accessory correction power is the sum of the predicted power of the current time period and the base power required for the vehicle to drive in the current time period; The power adjustment amount is determined based on the power difference, and the auxiliary correction power is adjusted based on the power adjustment amount to obtain the target power generation, and the range extender is controlled to operate at the target power generation during the current time period; wherein, the larger the power difference, the larger the power adjustment amount.

2. The control method for a vehicle range extender according to claim 1, characterized in that, The electrical accessory includes a high-voltage accessory and a low-voltage accessory, and the predicted power of the electrical accessory in the current time period is the sum of the predicted power of the high-voltage accessory and the low-voltage accessory in the current time period. The steps for predicting the power of a vehicle's electrical accessories in the current time period based on preset rules include: Obtain the current setting parameters of the high-voltage accessory, and obtain the current parameters and target parameters of the adjustment object of the high-voltage accessory; wherein, the current parameters and the target parameters are physical quantities that measure the adjustment object; Based on the setting parameters, the current parameters, and the target parameters, the power change relationship of the high-voltage accessory over time is predicted, and the power corresponding to the current time period in the power change relationship is taken as the predicted power of the high-voltage accessory in the current time period.

3. The control method for a vehicle range extender according to claim 1, characterized in that, The electrical accessory includes a high-voltage accessory and a low-voltage accessory, and the predicted power of the electrical accessory in the current time period is the sum of the predicted power of the high-voltage accessory and the low-voltage accessory in the current time period. The steps for predicting the power of a vehicle's electrical accessories in the current time period based on preset rules include: The first operating power of the low-voltage accessory is obtained when it operates for more than a preset duration during the historical period, or the second operating power of the low-voltage accessory is obtained at the current moment. The first operating power or the second operating power is used as the predicted power of the low-voltage accessory in the current time period.

4. The control method for a vehicle range extender according to claim 2, characterized in that, The high-pressure accessory is an air conditioning system, and the high-pressure accessory regulates the temperature of the passenger cabin. The steps of obtaining the current setting parameters of the high-voltage accessory and obtaining the current and target parameters of the adjustment object of the high-voltage accessory include: The system acquires the function mode, circulation mode, and set temperature of the air conditioning system, and acquires the current temperature and target temperature of the passenger cabin; wherein the function mode includes a cooling mode and a heating mode, and the circulation mode includes an internal circulation mode and an external circulation mode.

5. The control method for a vehicle range extender according to claim 1, characterized in that, The steps for predicting the power of a vehicle's electrical accessories in the current time period based on preset rules include: The actual power of the vehicle's electric accessories during the historical period is obtained, and the actual power during the historical period is used as the predicted power of the electric accessories during the current period.

6. The control method for a vehicle range extender according to claim 1, characterized in that, The steps of determining the power adjustment amount based on the power difference and adjusting the auxiliary correction power based on the power adjustment amount to obtain the target power generation include: If the predicted power for the historical period is detected to be greater than the actual power for the historical period, a negative power adjustment amount is determined based on the power difference, and the sum of the power adjustment amount and the supplementary corrected power is taken as the target power generation. If the predicted power for the historical period is less than the actual power for the historical period, a positive power adjustment amount is determined based on the power difference, and the sum of the power adjustment amount and the supplementary corrected power is taken as the target power generation.

7. The control method for a vehicle range extender according to claim 6, characterized in that, The step of determining a positive power adjustment amount based on the power difference when the predicted power for the historical period is detected to be less than the actual power for the historical period includes: If the predicted power of the historical period is less than the actual power of the historical period, then the preset NVH standard of the vehicle in the current period and the maximum power generation of the range extender under the preset NVH standard are obtained. If the sum of the power difference and the accessory correction power is detected to be greater than the maximum power generation, then a power adjustment amount that is less than the positive value of the power difference is determined.

8. A control device for a vehicle range extender, characterized in that, include: The acquisition module is configured to predict the power of the vehicle's electric accessories in the current time period based on preset rules, and acquire the predicted power of the electric accessories in a historical time period based on the preset rules; wherein the end time of the historical time period and the start time of the current time period are both the current time, and the duration of the historical time period and the current time period are equal; and based on the predicted power of the current time period, acquire the accessory correction power of the vehicle's range extender in the current time period, and determine the power difference between the predicted power of the historical time period and the actual power of the electric accessories in the historical time period; wherein the accessory correction power is the sum of the predicted power of the current time period and the base power required for the vehicle to drive in the current time period; The control module is used to determine the power adjustment amount based on the power difference, adjust the auxiliary correction power based on the power adjustment amount to obtain the target power generation, and control the range extender to operate at the target power generation during the current time period; wherein, the larger the power difference, the larger the power adjustment amount.

9. An electronic device, characterized in that, include: processor; A memory for storing a computer program that, when executed by the processor, implements the control method for the vehicle range extender according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, which, when executed by a processor, implements the control method for the vehicle range extender as described in any one of claims 1-7.

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