Vehicle range extender control method and device, electronic equipment and storage medium

Abstract

The application relates to the technical field of vehicles and provides a vehicle range extender control method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring navigation information of the current driving of a vehicle; determining the electric quantity that needs to be supplemented by a range extender in the current driving based on destination information in the navigation information; estimating the driving time of the vehicle in each sub-road section based on the navigation information, acquiring the recommended power generation of the range extender under different vehicle speed conditions, determining the first supplementary electric quantity of the range extender in the current driving based on the recommended power generation and the driving time of each sub-road section; in response to the first supplementary electric quantity being greater than the required supplementary electric quantity, controlling the range extender to work at the recommended power generation in each sub-road section; and in response to the first supplementary electric quantity being less than or equal to the required supplementary electric quantity, updating the recommended power generation of at least one sub-road section in each sub-road section and controlling the range extender to work at the updated recommended power generation in each sub-road section. The method can improve the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, and particularly to a vehicle range extender control method and device, an electronic device, and a storage medium. BACKGROUND

[0002] The biggest advantage of a range extended electric vehicle over a pure electric vehicle is that the range extended electric vehicle has a longer driving range, that is, when the power battery is depleted, the fuel energy can be converted into electric energy by the range extender for driving the vehicle. Most current range extender control methods are based on the actual driving speed and the remaining electric quantity (SOC) to control the range extender. This control method is simple to implement and has a clear control strategy, but lacks a global planning idea and does not consider user experience. SUMMARY

[0003] Therefore, the embodiments of the present application provide a vehicle range extender control method and device, an electronic device, and a storage medium to solve the problem that the range extender control method in the prior art may affect user experience.

[0004] In a first aspect, the embodiments of the present application provide a vehicle range extender control method, comprising:

[0005] obtaining navigation information of a current driving of a vehicle, the navigation information at least including destination information, mileage information, and vehicle speed information of each sub-section in a driving section;

[0006] determining a remaining electric quantity threshold of the current driving of the vehicle based on the destination information;

[0007] obtaining a current battery remaining electric quantity of the vehicle, and determining an electric quantity required to be supplemented by the range extender in the current driving based on the current battery remaining electric quantity, the remaining electric quantity threshold, and the mileage information;

[0008] estimating driving time of the vehicle in each sub-section based on the navigation information, the sub-section including a section corresponding to a different estimated vehicle speed in the navigation-recommended driving section of the vehicle;

[0009] obtaining recommended power generation of the range extender under different vehicle speeds, and determining a first supplemented electric quantity of the range extender in the current driving based on the recommended power generation and the driving time of each sub-section;

[0010] in response to the first supplemented electric quantity being greater than the required supplemented electric quantity, controlling the range extender to work according to the recommended power generation in each sub-section;

[0011] in response to the first supplemented electric quantity being less than or equal to the required supplemented electric quantity, increasing the recommended power generation of at least one sub-section in each sub-section until a second supplemented electric quantity of the range extender in the current driving, which is determined based on the increased recommended power generation and the driving time of each sub-section, is greater than the required supplemented electric quantity.

[0012] The range extender is controlled to work according to the increased recommended power generation at each sub-section.

[0013] In a second aspect, the embodiment of the present application provides a vehicle range extender control device, comprising:

[0014] The acquisition module is configured to acquire navigation information of the current driving of the vehicle, the navigation information comprising at least destination information, mileage information and vehicle speed information of each sub-section in a driving section.

[0015] The determination module is configured to determine a remaining power threshold of the current driving of the vehicle based on the destination information.

[0016] The acquisition module is further configured to acquire a current battery remaining power of the vehicle, and the determination module is further configured to determine a power to be supplemented by the range extender in the current driving based on the current battery remaining power, the remaining power threshold and the mileage information.

[0017] The estimation module is configured to estimate driving time of the vehicle at each sub-section based on the navigation information, the sub-section comprising a section corresponding to a different estimated vehicle speed in the navigation-recommended driving section of the vehicle.

[0018] The acquisition module is further configured to acquire recommended power generation of the range extender under different vehicle speed conditions, and the determination module is further configured to determine a first supplemented power of the range extender in the current driving based on the recommended power generation and the driving time of each sub-section.

[0019] The control module is configured to control the range extender to work according to the recommended power generation at each sub-section in response to the first supplemented power being greater than the power to be supplemented.

[0020] The control module is further configured to increase the recommended power generation of at least one of the sub-sections until a second supplemented power of the range extender in the current driving determined based on the increased recommended power generation and the driving time of each sub-section is greater than the power to be supplemented in response to the first supplemented power being less than or equal to the power to be supplemented.

[0021] The range extender is controlled to work according to the increased recommended power generation at each sub-section.

[0022] In a third aspect, the embodiment of the present application provides an electronic device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0023] In a fourth aspect, the embodiment of the present application provides a computer readable storage medium, which stores a computer program, wherein the computer program is executed by a processor to implement the steps of the above method.

[0024] The beneficial effects of the embodiments of the present application compared with the prior art are that the embodiments of the present application can improve the control efficiency of the range extender and improve the user experience by acquiring the navigation information of the current driving of the vehicle, combining the destination information in the navigation information, and controlling the range extender of the vehicle to work at different power in different sub road sections. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 is a scene schematic diagram of an application scenario of the embodiments of the present application.

[0027] Figure 2 is a flowchart of a vehicle range extender control method provided by the embodiments of the present application.

[0028] Figure 3 is a flowchart of a method for determining the residual power threshold of the current driving of the vehicle based on the destination information provided by the embodiments of the present application.

[0029] Figure 4 is a flowchart of a method for determining the recommended power of the range extender in different sub road sections provided by the embodiments of the present application.

[0030] Figure 5 is a flowchart of a method for correcting the recommended power of at least one sub road section of the range extender provided by the embodiments of the present application.

[0031] Figure 6 is a flowchart of a method for determining the power needed to be supplemented by the range extender in the current driving provided by the embodiments of the present application.

[0032] Figure 7 is a flowchart of a vehicle range extender control method provided by the embodiments of the present application.

[0033] Figure 8 is a schematic diagram of a vehicle range extender control device provided by the embodiments of the present application.

[0034] Figure 9 is a schematic diagram of an electronic device provided by the embodiments of the present application. DETAILED DESCRIPTION

[0035] In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular architectures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known methods, devices, circuits, and

[0036] A vehicle range extender control method and device according to embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0037] Figure 1 is a scenario diagram of an application scenario of embodiments of the present application. The application scenario can include a vehicle 1, a terminal device 2, a server 3, and a network 4.

[0038] The vehicle 1 can be hardware or software. When the vehicle 1 is hardware, it can be various electronic devices with computing capability and supporting communication with on-board sensors, other vehicles, road side units 3, and cloud servers 4, including but not limited to in-vehicle infotainment (IVI) on-board units (OBU), electronic control units (ECU), etc.; when the vehicle 1 is software, it can be installed in the electronic devices as described above. The vehicle 1 can be implemented as multiple software or software modules, or as a single software or software module, and the embodiments of the present application do not limit this. Further, various applications can be installed on the vehicle 1, such as data processing applications, instant messaging tools, social platform software, search applications, shopping applications, etc.

[0039] The terminal device 2 can be hardware or software. When the terminal device 2 is hardware, it can be various electronic devices with a display screen and supporting communication with the server 4, including but not limited to smartphones, tablet computers, laptop computers, and desktop computers, etc.; when the terminal device 2 is software, it can be installed in the electronic devices as described above. The terminal device 2 can be implemented as multiple software or software modules, or as a single software or software module, and the embodiments of the present application do not limit this. Further, various applications can be installed on the terminal device 2, such as data processing applications, instant messaging tools, social platform software, search applications, shopping applications, etc.

[0040] The server 3 can be a server providing various services, for example, a background server receiving a request sent by a terminal device establishing a communication connection therewith, which can receive and analyze the request sent by the terminal device and generate a processing result. The server 3 can be a server, a server cluster composed of several servers, or a cloud computing service center, and the embodiments of the present application do not limit this.

[0041] It should be noted that the server 3 can be hardware or software. When the server 3 is hardware, it can be various electronic devices providing various services for the vehicle 1 and the terminal device 2. When the server 3 is software, it can be a plurality of software or software modules providing various services for the vehicle 1 and the terminal device 2, or a single software or software module providing various services for the vehicle 1 and the terminal device 2, and the embodiments of the present application do not limit this.

[0042] The network 4 can be a wired network connected by coaxial cables, twisted pairs and optical fibers, or a wireless network that can realize interconnection of various communication devices without wiring, for example, Bluetooth, Near Field Communication (NFC), Infrared, etc., and the embodiments of the present application do not limit this.

[0043] The user can establish a communication connection with the terminal device 2 or the server 3 through the vehicle 1 via the network 4 to receive or send information, etc. Specifically, the user can obtain navigation information from the terminal device 2, or obtain parameters such as recommended power generation of the vehicle range extender on sub-road segments corresponding to different vehicle speeds from the server 3.

[0044] It should be noted that the specific types, quantities and combinations of the vehicle 1, the terminal device 2, the server 3 and the network 4 can be adjusted according to the actual needs of the application scenario, and the embodiments of the present application do not limit this.

[0045] As mentioned above, most current range extender control methods are based on the actual driving speed and the SOC to control the range extender. This control method is simple to implement and has clear control strategy, but lacks global planning and does not consider user experience.

[0046] In view of this, the embodiments of the present application provide a vehicle range extender control method, which controls the vehicle range extender to work at different power generation on different sub-road segments by obtaining navigation information of the current driving of the vehicle, combining destination information in the navigation information and recommended power generation of each sub-road segment corresponding to different vehicle speeds of the current driving, which can improve the control efficiency of the range extender and improve user experience.

[0047] Figure 2is a flowchart of a vehicle range extender control method provided in an embodiment of the present application. Figure 2 The vehicle range extender control method can be executed by a vehicle 1. Figure 1 As shown in FIG. 1, the vehicle range extender control method comprises the following steps. Figure 2

[0048] In step S201, navigation information of a current driving of the vehicle is acquired.

[0049] The navigation information at least comprises destination information, mileage information and vehicle speed information of each sub-section in a driving section.

[0050] In step S202, a remaining power threshold of the current driving of the vehicle is determined based on the destination information.

[0051] In step S203, a current battery remaining power of the vehicle is acquired, and a power required to be supplemented by the range extender in the current driving is determined based on the current battery remaining power, the remaining power threshold and the mileage information.

[0052] In step S204, driving time of the vehicle in each sub-section is estimated based on the navigation information, and the sub-sections comprise sections corresponding to different estimated vehicle speeds in the driving section recommended by the navigation.

[0053] In step S205, recommended power generation of the range extender under different vehicle speeds is acquired, and first supplemented power of the range extender in the current driving is determined based on the recommended power generation and the driving time of each sub-section.

[0054] In step S206, in response to the first supplemented power being greater than the required supplemented power, the range extender is controlled to work at the recommended power generation in each sub-section.

[0055] In step S207, in response to the first supplemented power being less than or equal to the required supplemented power, the recommended power generation of at least one of the sub-sections is increased until second supplemented power of the range extender in the current driving determined based on the increased recommended power generation and the driving time of each sub-section is greater than the required supplemented power.

[0056] In step S208, the range extender is controlled to work at the increased recommended power generation in each sub-section.

[0057] In the embodiment of the present application, the navigation information of the current driving of the vehicle can be acquired when the vehicle is started or when the vehicle is driving. The navigation information can be acquired by a vehicle-mounted unit or by a terminal device or a cloud server connected to the vehicle, which is not limited herein. The navigation information can comprise destination information, mileage information and vehicle speed information of each sub-section in a driving section, etc.

[0058] ​In the embodiments of the present application, the remaining power threshold of the vehicle for this trip can be determined based on the destination information in the navigation information. Specifically, the destination information can indicate different types of destinations, and different types of destinations can correspond to different remaining power thresholds. When the remaining power of the battery of the vehicle is less than the remaining power threshold, the range extender needs to be started.

[0059] In the embodiments of the present application, the current remaining power of the battery of the vehicle can also be obtained, and the amount of power that the range extender needs to supplement for this trip is determined based on the current remaining power of the battery, the remaining power threshold, and the mileage information. Specifically, the driving mileage supported by the battery of the vehicle can be determined based on the current remaining power of the battery and the remaining power threshold, and then the amount of power that the battery needs to supplement for this trip is determined based on the driving mileage supported by the battery of the vehicle and the mileage information in the navigation information, i.e., the estimated driving mileage for this trip.

[0060] In the related art, when it is determined that the range extender needs to be started to supplement the power of the battery of the vehicle, the range extender is configured to work with a fixed power generation power until the end of the trip, or the remaining power of the battery of the vehicle exceeds a preset threshold. Such a working mode is logically simple and easy to implement, but the charging efficiency is not optimal. In addition, the wind noise experienced by the occupants in the vehicle is different when the vehicle is driving on different road sections. If the current wind noise is small when the vehicle is driving on a road section with good road conditions, and the power generation power of the range extender is large, the working noise of the range extender will bring an unpleasant experience to the occupants in the vehicle. In view of this, different power generation powers of the range extender can be allocated to different road sections of the vehicle.

[0061] In the embodiments of the present application, the driving time of the vehicle on each sub-section can be estimated based on the navigation information, where the sub-section can be a section of the driving road section recommended by the navigation for the vehicle corresponding to different estimated speeds. The estimated speed can be estimated by the navigation application based on the obtained real-time section information and the historical driving speed of the vehicle on the section. Further, the recommended power generation power of the range extender under different speed conditions can also be obtained, and the first amount of power that the range extender needs to supplement during this trip is determined based on the recommended power generation power and the driving time of each sub-section.

[0062] The recommended power generation power of the range extender under different speed conditions can be the optimal power generation power of the range extender under each speed condition, which can be that the noise decibels of the range extender working at this power generation power are less than or equal to the wind noise decibels when the vehicle is driving at this speed. Further, the first amount of power that the range extender needs to supplement during this trip can be determined based on the recommended power generation power and the driving time of each sub-section, which can be that the product of the recommended power generation power of each sub-section and the driving time of the sub-section is calculated, and the sum of the products of the recommended power generation power and the driving time of each sub-section can obtain the first amount of power that the range extender needs to supplement during this trip.

[0063] wherein, in order to reduce the calculation complexity, a recommended power generation can be obtained in advance for each vehicle speed interval. For example, a recommended power generation can be obtained in advance for a vehicle speed V 0-30 determining a corresponding recommended power generation P 0-30 at this time, a driving time of the vehicle driving at the speed based on the navigation information is T 0-30 for a vehicle speed V 30-60 determining a corresponding recommended power generation P 30-60 at this time, a driving time of the vehicle driving at the speed based on the navigation information is T 30-60 and so on.

[0064] In an example, assuming that the estimated vehicle speed of each road section, the recommended power generation of the range extender and the driving time of each road section of the vehicle in this driving are shown in Table 1, the first supplementary power W1 can be calculated as P 0-30 *T 0-30 +P 30-60 *T 30-60 +P 60-90 *T 60-90 +P 90-120 *T 90-120 .

[0065] Table 1

[0066] V 0-30 ]]> V 30-60 ]]> V 60-90 ]]> V 90-120 ]]> P 0-30 ]]> P 30-60 ]]> P 60-90 ]]> P 90-120 ]]> T 0-30 ]]> T 30-60 ]]> T 60-90 ]]> T 90-120 ]]>

[0067] In the embodiments of the present application, if the first supplementary power is greater than the required supplementary power, the range extender can be controlled to work according to the recommended power generation in each sub-road section. On the other hand, if the first supplementary power is less than or equal to the required supplementary power, the recommended power generation of at least one of the sub-road sections is increased until the second supplementary power of the range extender in this driving is greater than the required supplementary power based on the increased recommended power generation and the driving time of each sub-road section. At this time, the range extender can be controlled to work according to the increased recommended power generation in each sub-road section.

[0068] According to the technical scheme provided by the embodiments of the present application, by obtaining the navigation information of the vehicle in this driving, combining the destination information in the navigation information and the recommended power generation of each sub-road section corresponding to different vehicle speeds in this driving, the range extender of the vehicle is controlled to work at different power generations in different sub-road sections, which can improve the control efficiency of the range extender and improve the user experience.

[0069] Figure 3 is a flowchart of a method for determining a residual power threshold of a vehicle in this driving based on destination information provided by the embodiments of the present application. As shown in Figure 3 the method comprises the following steps:

[0070] In step S301, a destination type is determined based on the destination information.

[0071] The destination type includes a first destination type in which there is a charging pile within a preset distance range of the destination, and a second destination type in which there is no charging pile within the preset distance range of the destination.

[0072] In step S302, in response to the destination type being the first destination type, the remaining power threshold is determined as a first remaining power threshold.

[0073] In step S303, in response to the destination type being the second destination type, the remaining power threshold is determined as a second remaining power threshold, and the first remaining power threshold is less than the second remaining power threshold.

[0074] In the embodiments of the present application, the destination type can be determined based on the destination information, wherein the destination type includes a first destination type in which there is a charging pile within a preset distance range of the destination, and a second destination type in which there is no charging pile within the preset distance range of the destination. In an example, if the destination information shows that the destination is a charging station, a home, a company (and both the home and the company are installed with charging piles), etc., the destination type can be determined as the first destination type. On the other hand, if the destination information shows that the destination is a public parking lot without a charging pile, etc., the destination type can be determined as the second destination type.

[0075] In the embodiments of the present application, when the destination type is determined as the first destination type, the remaining power threshold can be determined as a first remaining power threshold, and when the destination type is determined as the second destination type, the remaining power threshold can be determined as a second remaining power threshold, wherein the first remaining power threshold is less than the second remaining power threshold. That is, when the destination type is the first destination type, the battery remaining power at the end of the current trip can be allowed to be a smaller value, and when the destination type is the second destination type, the battery remaining power allowed at the end of the current trip can be set to a larger value, so as to balance environmental protection, cost and user experience.

[0076] That is, when the destination is a place such as a charging station, a home, a company, etc. which is equipped with a charging pile, the battery power consumption can be considered, and the range extender can be started as little as possible, because consuming electric energy is more environmentally friendly and economical than consuming fuel. At this time, the battery power can be set not to be lower than a smaller first remaining power threshold SOC1 when reaching such a destination. When there is no charging pile at the destination or near the destination, in order to avoid user anxiety about the battery power, the battery power should be consumed as little as possible, so as to bring a bad driving experience to the user. At this time, the battery power can be set not to be lower than a second remaining power threshold SOC2 when reaching such a destination.

[0077] The technical scheme of the embodiment of the application can set different residual power thresholds for different types of destinations, so that the range extender can be started more appropriately, and the environmental protection, cost and user experience are considered.

[0078] Figure 4 is a flowchart of a method for determining recommended power of a range extender in different sub-sections provided by the embodiment of the application. As shown in the figure, Figure 4 the method comprises the following steps:

[0079] In step S401, the wind noise decibels in the vehicle when the vehicle travels in different sub-sections corresponding to different speeds are obtained.

[0080] In step S402, the range extender noise decibels in the vehicle when the range extender generates power at different powers when the vehicle is stationary are obtained.

[0081] In step S403, the range extender power corresponding to the range extender noise decibels less than or equal to the wind noise decibels is determined as the recommended power of the range extender in the sub-section corresponding to the speed.

[0082] As mentioned above, the vehicle will have different noises when traveling in different road conditions. In order to consider the accuracy of noise quantification and the calculation cost, in the embodiment of the application, the recommended power of the vehicle in the section corresponding to the speed can be determined based on the wind noise of the vehicle in the section corresponding to the speed.

[0083] Specifically, the wind noise decibels in the vehicle when the vehicle travels in different sub-sections corresponding to different speeds can be obtained. Further, the range extender noise decibels in the vehicle when the range extender generates power at different powers when the vehicle is stationary can also be obtained. That is, in order to obtain the recommended power of the vehicle in the section corresponding to the speed, the wind noise decibels perceived by the driver and passengers in the vehicle when the vehicle travels on the road at different speeds and the range extender noise decibels perceived by the driver and passengers in the vehicle when the range extender generates power at different powers when the vehicle is stationary can be obtained in advance through experiments. Then, the power generation power of the range extender can be distributed in combination with the speed information of different sections. The distribution principle is that the wind noise at the speed can effectively mask the noise of the range extender. This means that the higher the speed, the higher the power generation power of the range extender, because the wind noise is large at this time; and the lower the speed, the lower the power generation power of the range extender, because the wind noise is small at this time. Therefore, the range extender power corresponding to the range extender noise decibels less than or equal to the wind noise decibels can be determined as the recommended power of the range extender in the sub-section corresponding to the speed.

[0084] The technical scheme of the embodiment of the application can set different residual power thresholds for different types of destinations, so that the range extender can be started more appropriately, and the environmental protection, cost and user experience are considered.

[0085] Figure 5 is a flowchart of a method for correcting recommended power generation of at least one of the sub-sections of the range extender, provided by an embodiment of the present application. As shown in the figure, the method comprises the following steps: Figure 5

[0086] In step S501, the recommended power generation of the sub-section with the highest vehicle speed is increased by a first preset amplitude, to obtain updated recommended power generation of the sub-section with the highest vehicle speed.

[0087] In step S502, based on the updated recommended power generation of the sub-section with the highest vehicle speed after the increase and the driving time of the sub-section with the highest vehicle speed, and the recommended power generation of other sub-sections and the driving time of other sub-sections, a second supplementary power of the range extender during the current driving is determined.

[0088] In step S503, in response to the second supplementary power being less than or equal to the required supplementary power, the recommended power generation of the sub-section with the second highest vehicle speed is increased by a second preset amplitude, to obtain updated recommended power generation of the sub-section with the second highest vehicle speed.

[0089] wherein the first preset amplitude is equal to the second preset amplitude, or the first preset amplitude is not equal to the second preset amplitude.

[0090] In step S504, based on the updated recommended power generation of the sub-sections with the highest and second highest vehicle speeds after the increase and the driving time of the sub-sections with the highest and second highest vehicle speeds, and the recommended power generation of other sub-sections and the driving time of other sub-sections, the second supplementary power of the range extender during the current driving is updated.

[0091] In step S505, the step of increasing the recommended power generation of each sub-section is repeatedly executed in the order of vehicle speed from high to low, until the second supplementary power of the range extender during the current driving, which is determined based on the increased recommended power generation and the driving time of each sub-section, and the recommended power generation of the sub-sections which have not undergone the increase of recommended power generation and the driving time of the sub-sections which have not undergone the increase of recommended power generation, is greater than the required supplementary power.

[0092] ​In the embodiments of the present application, if the first supplementary electric quantity is greater than the required supplementary electric quantity, the range extender can work in each sub-section according to the recommended power generation, at this time, the working noise of the range extender in each sub-section will not be greater than the wind noise when the vehicle is running, and after this driving is finished, the residual electric quantity of the vehicle battery will be greater than the residual electric quantity threshold. On the contrary, if the first supplementary electric quantity is greater than the required supplementary electric quantity, the power generation of the range extender in each sub-section needs to be redistributed. The distribution principle can be: the power generation that is still lacking compared with the first supplementary electric quantity is preferentially distributed to the high-speed road section, because the user is more likely to perceive the noise of the range extender at low speed.

[0093] Therefore, the recommended power generation of the sub-section with the highest speed can be first increased by a first preset amplitude to obtain the updated recommended power generation of the sub-section with the highest speed. The first preset amplitude can also be obtained in advance through experiments. Subsequently, based on the updated recommended power generation of the sub-section with the highest speed after the increase and the driving time of the sub-section with the highest speed, and the recommended power generation of other sub-sections and the driving time of other sub-sections, the second supplementary electric quantity of the range extender during this driving is determined. It is judged again whether the second supplementary electric quantity can meet the requirement of the required supplementary electric quantity, if the second supplementary electric quantity is still less than or equal to the required supplementary electric quantity, the recommended power generation of the sub-section with the second highest speed in each sub-section is increased by a second preset amplitude to obtain the updated recommended power generation of the sub-section with the second highest speed. The second preset amplitude can also be obtained in advance through experiments, and the first preset amplitude can be the same as or different from the second preset amplitude.

[0094] Next, the second supplementary electric quantity of the range extender during this driving can be continuously updated based on the updated recommended power generation of the sub-sections with the highest and second highest speeds after the increase and the driving time of the sub-sections with the highest and second highest speeds, and the recommended power generation of other sub-sections and the driving time of other sub-sections. It is judged again whether the updated second supplementary electric quantity can meet the requirement of the required supplementary electric quantity, if the updated second supplementary electric quantity is still less than or equal to the required supplementary electric quantity, the step of increasing the recommended power generation of each sub-section is repeatedly executed in the order of speed from high to low, until the second supplementary electric quantity of the range extender during this driving determined based on the increased recommended power generation and the driving time of each sub-section, and the recommended power generation of the sub-sections which have not been increased and the driving time of the sub-sections which have not been increased, is greater than the required supplementary electric quantity.

[0095] Still referring to the embodiment shown in Table 1, when the first supplementary electric quantity is less than or equal to the required supplementary electric quantity, the recommended power generation of the sub-section with the highest speed can be first adjusted by a first preset amplitude to obtain the updated recommended power generation of the sub-section with the highest speed. 90-120 The recommended power generation of the speed section is adjusted by a first preset amplitude to obtain the updated recommended power generation P90-120 ’*T 0-30 *T 0-30 +P 30-60 *T 30-60 +P 60-90 *T 60-90 +P 90-120 ’*T 90-120 If the second supplementary electric quantity is greater than the required supplementary electric quantity, the range extender can work at V 0-30 , V 30-60 , V 60-90 and V 90-120 at the power P 0-30 , P 30-60 , P 60-90 and P 90-120 ’ respectively. If the second supplementary electric quantity is less than or equal to the required supplementary electric quantity, the recommended power of V 60-90 can be adjusted by a second preset amplitude to obtain an updated recommended power P 60-90 ’ of the vehicle speed section, and then the updated second supplementary electric quantity W1=P 0-30 *T 0-30 +P 30-60 *T 30-60 +P 60-90 ’*T 60-90 +P 90-120 ’*T 90-120 . The adjustment is updated in the order of V 90-120 , V 60-90 , V 30-60 , V 0-30 and V 90-120 until the updated second supplementary electric quantity is greater than the required supplementary electric quantity.

[0096] Figure 6 is a flowchart of a method for determining the electric quantity required to be supplemented by the range extender in the present driving provided by the embodiment of the present application. As shown in Figure 6 , the method comprises the following steps:

[0097] In step S601, the electric energy driving range of the vehicle is determined based on the current battery residual electric quantity and the residual electric quantity threshold.

[0098] In step S602, the range required to be supplemented by the range extender in the present driving is determined based on the difference between the range information and the electric energy driving range.

[0099] In step S603, the electric quantity required to be supplemented by the range extender in the present driving is determined based on the unit energy consumption of the vehicle and the range required to be supplemented by the range extender in the present driving.

[0100] In the embodiments of the present application, the electric energy endurance mileage of the vehicle can be determined based on the current battery remaining power and the remaining power threshold value, and then the mileage S that the range extender needs to supplement in the current driving can be determined based on the difference between the mileage information and the electric energy endurance mileage. 差 Then, the unit energy consumption of the vehicle, for example, the 100-kilometer energy consumption W of the vehicle can be obtained. 百公里 Then, the unit energy consumption of the vehicle, for example, the 100-kilometer energy consumption W of the vehicle can be obtained. 补 百公里 差

[0101] Figure 7 FIG. 1 is a flowchart of a vehicle range extender control method according to an embodiment of the present application. Figure 7 The steps S701 to S708 in the embodiment shown in FIG. 7 are basically the same as the steps S201 to S208 in the embodiment shown in FIG. 2, and will not be described here again. As shown in FIG. 7, the method further comprises the following steps: Figure 2 The steps S701 to S708 in the embodiment shown in FIG. 7 are basically the same as the steps S201 to S208 in the embodiment shown in FIG. 2, and will not be described here again. As shown in FIG. 7, the method further comprises the following steps: Figure 7

[0102] In step S709, in response to the range extender being in the working state and receiving the user-sent noise reduction instruction, the real-time power generation of the range extender is reduced, the range extender recommended power of each sub-section remaining in the current driving is updated, the range extender needs to supplement the power is updated, and the third supplement power of the range extender in the current driving is determined based on the updated recommended power generation of each sub-section and the driving time of each sub-section, so that the third supplement power is greater than the updated power that needs to be supplemented.

[0103] ​​​​In the embodiments of the present application, the working state of the range extender can also be adjusted based on real-time feedback of the user. That is, when the range extender is in the working state, the vehicle receives a noise reduction instruction sent by the user. At this time, the user in the vehicle can be making or receiving a call, or the road surface condition of the road section where the vehicle travels is very good, and the wind noise based on the vehicle speed limit estimated wind noise is small, so the noise of the range extender brings bad experience to the user. At this time, the real-time power generation of the range extender can be reduced, and the range extender recommended power of each remaining sub-section of the current trip is updated, and the amount of electricity needed to be supplemented is updated based on the updated recommended power generation of each sub-section and the driving time of each sub-section, so that the third amount of electricity supplemented by the range extender during the current trip is greater than the updated amount of electricity needed to be supplemented. Further, if the range extender recommended power of each remaining sub-section is updated and cannot meet the recommended power generation of each sub-section and the driving time of each sub-section, the third amount of electricity supplemented by the range extender during the current trip is greater than the updated amount of electricity needed to be supplemented, the user can be fed back through voice or other forms, prompting the user to successfully reach the destination, and the range extender noise cannot be reduced at present.

[0104] The range extender recommended power of each remaining sub-section of the current trip can be updated in the following manner: the range extender recommended power of each remaining sub-section of the current trip is sequentially increased in the order of corresponding vehicle speed from large to small, until the third amount of electricity supplemented by the range extender during the current trip is greater than the updated amount of electricity needed to be supplemented based on the updated recommended power generation of each sub-section and the driving time of each sub-section.

[0105] According to the technical scheme provided in the embodiments of the present application, the working state of the range extender is adjusted based on real-time feedback of the user, and the user experience is further improved.

[0106] All the optional technical solutions described above can be combined to form optional embodiments of the present application, and will not be described here.

[0107] The following is an apparatus embodiment of the present application, which can be used to execute the method embodiments of the present application. For details not disclosed in the apparatus embodiments of the present application, please refer to the method embodiments of the present application.

[0108] Figure 8 FIG. 1 is a schematic diagram of a vehicle range extender control device provided in an embodiment of the present application. As shown in FIG. 1, the vehicle range extender control device includes: Figure 8

[0109] The acquisition module 801 is configured to acquire navigation information of the current trip of the vehicle, and the navigation information at least includes destination information, mileage information, and vehicle speed information of each sub-section in the driving road section.

[0110] ​The determining module 802 is configured to determine the residual power threshold of the current driving of the vehicle based on the destination information.

[0111] The obtaining module is further configured to obtain the current battery residual power of the vehicle, and the determining module is further configured to determine the power to be supplemented by the range extender in the current driving based on the current battery residual power, the residual power threshold, and the mileage information.

[0112] The estimating module 803 is configured to estimate the driving time of the vehicle on each sub-section based on the navigation information, the sub-section including a section corresponding to a different estimated vehicle speed in the vehicle driving section recommended by the navigation.

[0113] The obtaining module is further configured to obtain the recommended power generation of the range extender under different vehicle speed conditions, and the determining module is further configured to determine the first supplemented power of the range extender in the current driving based on the recommended power generation and the driving time of each sub-section.

[0114] The control module 804 is configured to control the range extender to work according to the recommended power generation on each sub-section in response to the first supplemented power being greater than the power to be supplemented.

[0115] The control module is further configured to increase the recommended power generation of at least one of the sub-sections until the second supplemented power of the range extender in the current driving determined based on the increased recommended power generation and the driving time of each sub-section is greater than the power to be supplemented in response to the first supplemented power being less than or equal to the power to be supplemented.

[0116] The range extender is controlled to work according to the increased recommended power generation on each sub-section.

[0117] According to the technical scheme provided in the embodiments of the present application, by obtaining the navigation information of the current driving of the vehicle, combining the destination information in the navigation information and the recommended power generation of each sub-section corresponding to different vehicle speeds in the current driving, the range extender of the vehicle is controlled to work at different power generations in different sub-sections, which can improve the control efficiency of the range extender and improve the user experience.

[0118] In the embodiments of the present application, the residual power threshold of the current driving of the vehicle is determined based on the destination information, including: determining the destination type based on the destination information, the destination type including a first destination type with a charging pile within a preset distance range of the destination and a second destination type without a charging pile within the preset distance range of the destination; determining the residual power threshold as a first residual power threshold in response to the destination type being the first destination type; determining the residual power threshold as a second residual power threshold in response to the destination type being the second destination type, the first residual power threshold being less than the second residual power threshold.

[0119] In the embodiments of the present application, the recommended power generation of the range extender in different sub-road sections is determined in the following manner: obtaining the wind noise decibel in the vehicle when the vehicle travels in different sub-road sections corresponding to different vehicle speeds; obtaining the range extender noise decibel in the vehicle when the range extender generates power at different power when the vehicle is stationary; determining the range extender power corresponding to the range extender noise decibel that is less than or equal to the wind noise decibel as the recommended power generation of the range extender in the sub-road section corresponding to the vehicle speed.

[0120] In the embodiments of the present application, the recommended power generation of at least one of the sub-road sections is increased until the second supplementary power of the range extender during the current driving is greater than the required supplementary power based on the increased recommended power generation and the driving time of each sub-road section, including: increasing the recommended power generation of the sub-road section with the highest vehicle speed in each sub-road section by a first preset amplitude to obtain the updated recommended power generation of the sub-road section with the highest vehicle speed; determining the second supplementary power of the range extender during the current driving based on the updated recommended power generation of the sub-road section with the highest vehicle speed after the increase and the driving time of the sub-road section with the highest vehicle speed, and the recommended power generation of other sub-road sections and the driving time of other sub-road sections; in response to the second supplementary power being less than or equal to the required supplementary power, increasing the recommended power generation of the sub-road section with the second highest vehicle speed in each sub-road section by a second preset amplitude to obtain the updated recommended power generation of the sub-road section with the second highest vehicle speed, the first preset amplitude being equal to the second preset amplitude or the first preset amplitude being not equal to the second preset amplitude; updating the second supplementary power of the range extender during the current driving based on the updated recommended power generation of the sub-road sections with the highest and second highest vehicle speeds after the increase and the driving time of the sub-road sections with the highest and second highest vehicle speeds, and the recommended power generation of other sub-road sections and the driving time of other sub-road sections; repeating the step of increasing the recommended power generation of each sub-road section in the order of vehicle speed from high to low until the second supplementary power of the range extender during the current driving is greater than the required supplementary power based on the increased recommended power generation and the driving time of each sub-road section, and the recommended power generation of the sub-road section without the increase of the recommended power generation and the driving time of the sub-road section without the increase of the recommended power generation.

[0121] In the embodiments of the present application, the required supplementary power of the range extender during the current driving is determined based on the current battery remaining power, the remaining power threshold and the mileage information, including: determining the electric energy endurance mileage of the vehicle based on the current battery remaining power and the remaining power threshold; determining the mileage that the range extender needs to supplement during the current driving based on the difference between the mileage information and the electric energy endurance mileage; determining the required supplementary power of the range extender during the current driving based on the unit energy consumption of the vehicle and the mileage that the range extender needs to supplement during the current driving.

[0122] In this embodiment of the application, the method further includes: in response to the range extender being in working state and receiving a noise reduction command sent by the user, reducing the real-time power generation of the range extender, updating the recommended power of the range extender for each remaining sub-segment of the current trip, and updating the power required to replenish the range extender based on the updated recommended power generation of each sub-segment and the travel time of each sub-segment, so that the third replenishment power of the range extender during the current trip is greater than the updated power required to replenish.

[0123] In this embodiment of the application, updating the recommended power of the range extender for each remaining sub-segment of the current trip includes: sequentially increasing the recommended power of the range extender for each remaining sub-segment of the current trip in descending order of the corresponding vehicle speed, until the third supplementary power of the range extender during the current trip is determined to be greater than the updated required supplementary power based on the updated recommended power generation of each sub-segment and the travel time of each sub-segment.

[0124] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0125] Figure 9 This is a schematic diagram of the electronic device provided in an embodiment of this application. For example... Figure 9 As shown, the electronic device 9 of this embodiment includes a processor 901, a memory 902, and a computer program 903 stored in the memory 902 and executable on the processor 901. When the processor 901 executes the computer program 903, it implements the steps in the various method embodiments described above. Alternatively, when the processor 901 executes the computer program 903, it implements the functions of each module / unit in the various device embodiments described above.

[0126] Electronic device 9 can be a desktop computer, laptop, handheld computer, cloud server, or other electronic device. Electronic device 9 may include, but is not limited to, processor 901 and memory 902. Those skilled in the art will understand that... Figure 9 This is merely an example of electronic device 9 and does not constitute a limitation on electronic device 9. It may include more or fewer components than shown, or different components.

[0127] The processor 901 can be a central processing unit (CPU), and can also be other general-purpose processors, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0128] The memory 902 can be an internal storage unit of the electronic device, for example, a hard disk or a memory of the electronic device 9. The memory 902 can also be an external storage device of the electronic device 9, for example, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the electronic device 9. The memory 902 can also include both the internal storage unit and the external storage device of the electronic device 9. The memory 902 is used to store computer programs and other programs and data required by the electronic device.

[0129] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the above-mentioned division of functional units and modules is exemplified, and in actual application, the above-mentioned functions can be completed by different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0130] The integrated modules / units, if implemented in the form of software functional units and sold or used as independent products, can be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the above-mentioned embodiment methods can also be completed by a computer program instructing related hardware, and the computer program can be stored in a computer readable storage medium. The computer program can be executed by a processor to implement the steps of the above-mentioned various method embodiments. The computer program can include computer program code, which can be in the form of source code, object code, executable files, or some intermediate forms. The computer readable medium can include any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal, and software distribution medium, etc.

[0131] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A vehicle range extender control method, characterized in that, include: Obtain navigation information for the vehicle's current journey, including at least destination information, mileage information, and vehicle speed information for each sub-segment of the route. The remaining battery power threshold for the vehicle's current trip is determined based on the destination information; the destination information indicates different types of destinations, and different types of destinations correspond to different remaining battery power thresholds. The current remaining battery power of the vehicle is obtained, and the amount of power that the range extender needs to replenish during this trip is determined based on the current remaining battery power, the remaining power threshold, and the mileage information. Based on the navigation information, the estimated travel time of the vehicle in each sub-road segment is calculated. The sub-road segment includes the road segments recommended by the navigation system that correspond to different estimated vehicle speeds. The recommended power output of the range extender under different vehicle speed conditions is obtained. Based on the recommended power output and the travel time of each sub-road segment, the first supplementary power of the range extender during this trip is determined. The recommended power output of the range extender in different sub-road segments is determined in the following way: the wind noise decibels inside the vehicle are obtained when the vehicle is traveling in different sub-road segments corresponding to different vehicle speeds; the range extender noise decibels inside the vehicle are obtained when the vehicle is stationary and the range extender generates power at different power. The range extender power output corresponding to a range extender noise level less than or equal to the wind noise level is determined as the recommended power output of the range extender for the corresponding vehicle speed sub-road segment. In response to the first replenished power being greater than the required replenished power, the range extender is controlled to operate at the recommended power generation capacity in each sub-segment; In response to the first replenished power being less than or equal to the power required to be replenished, the recommended power generation of at least one sub-segment in each sub-segment is increased until, based on the increased recommended power generation and the travel time of each sub-segment, the second replenished power of the range extender during this trip is determined to be greater than the power required to be replenished. The range extender is controlled to operate at the increased recommended power output in each sub-segment.

2. The method according to claim 1, characterized in that, The step of determining the remaining battery power threshold for the vehicle's current journey based on the destination information includes: The destination type is determined based on the destination information. The destination type includes a first destination type where there are charging piles within a preset distance range of the destination, and a second destination type where there are no charging piles within a preset distance range of the destination. In response to the destination type being a first destination type, the remaining battery threshold is determined to be a first remaining battery threshold; In response to the destination type being a second destination type, the remaining battery threshold is determined to be a second remaining battery threshold, wherein the first remaining battery threshold is less than the second remaining battery threshold.

3. The method according to claim 1, characterized in that, The step of increasing the recommended power generation capacity of at least one sub-segment of each sub-segment until, based on the increased recommended power generation capacity and the travel time of each sub-segment, the second supplementary power capacity of the range extender during this trip is determined to be greater than the required supplementary power capacity, includes: The recommended power generation capacity of the sub-segment with the highest vehicle speed in each sub-segment is increased by a first preset amount to obtain the updated recommended power generation capacity of the sub-segment with the highest vehicle speed. Based on the updated recommended power generation of the sub-segment with the highest vehicle speed after the addition and the travel time of the sub-segment with the highest vehicle speed, as well as the recommended power generation of other sub-segments and the travel time of other sub-segments, the second supplementary power of the range extender during this trip is determined. In response to the second supplementary power being less than or equal to the power to be supplemented, the recommended power generation of the sub-segment with the second highest vehicle speed in each sub-segment is increased by a second preset amount to obtain the updated recommended power generation of the sub-segment with the second highest vehicle speed. The first preset amount is equal to the second preset amount, or the first preset amount is not equal to the second preset amount. Based on the updated recommended power generation of the sub-segments with the highest and second highest vehicle speeds and the travel time of the sub-segments with the highest and second highest vehicle speeds, as well as the recommended power generation of other sub-segments and the travel time of other sub-segments, the range extender's second supplementary power during this trip is updated. The process of increasing the recommended power generation capacity of each sub-segment is repeated in descending order of vehicle speed until, based on the increased recommended power generation capacity and the travel time of each sub-segment, as well as the recommended power generation capacity and travel time of the sub-segments for which no increase in recommended power generation capacity was performed, it is determined that the second supplementary power of the range extender during this trip is greater than the required supplementary power.

4. The method according to claim 1, characterized in that, The process of determining the amount of electricity the range extender needs to replenish during this trip based on the current remaining battery power, the remaining power threshold, and the mileage information includes: The vehicle's electric driving range is determined based on the current remaining battery power and the remaining power threshold. The range extender needs to replenish mileage for this trip based on the difference between the mileage information and the electric driving range. Based on the vehicle's unit energy consumption and the mileage that the range extender needs to replenish during this trip, the amount of electricity that the range extender needs to replenish during this trip is determined.

5. The method according to claim 1, characterized in that, The method further includes: In response to the range extender being in working condition and receiving a noise reduction command sent by the user, the real-time power generation of the range extender is reduced, and the recommended power of the range extender for each remaining sub-segment of the current trip is updated. Based on the updated recommended power generation of each sub-segment and the travel time of each sub-segment, the third supplementary power of the range extender during the current trip is determined to be greater than the updated required supplementary power.

6. The method according to claim 5, characterized in that, The update of the recommended power of the range extender for the remaining sub-segments of this trip includes: The recommended power of the range extender for the remaining sub-segments of the current trip is increased sequentially in descending order of vehicle speed, until the third supplementary power of the range extender during the current trip is determined to be greater than the updated required supplementary power based on the updated recommended power generation of each sub-segment and the travel time of each sub-segment.

7. A vehicle range extender control device, characterized in that, include: The acquisition module is configured to acquire navigation information for the current vehicle journey, the navigation information including at least destination information, mileage information and vehicle speed information for each sub-segment of the route; The determination module is configured to determine the remaining battery power threshold for the vehicle's current trip based on the destination information; the destination information indicates different types of destinations, and different types of destinations correspond to different remaining battery power thresholds; The acquisition module is further configured to acquire the current remaining battery power of the vehicle, and the determination module is further configured to determine the amount of power the range extender needs to replenish during this trip based on the current remaining battery power, the remaining power threshold, and the mileage information. The estimation module is configured to estimate the vehicle's travel time in each sub-road segment based on the navigation information. The sub-road segment includes the road segments recommended by the navigation system that correspond to different estimated vehicle speeds. The acquisition module is further configured to acquire the recommended power generation of the range extender under different vehicle speed conditions, and the determination module is further configured to determine the first replenishment power of the range extender during this trip based on the recommended power generation and the travel time of each sub-road segment; the recommended power generation of the range extender in different sub-road segments is determined in the following way: acquiring the wind noise decibels inside the vehicle when the vehicle is traveling in different sub-road segments corresponding to different vehicle speeds; acquiring the range extender noise decibels inside the vehicle when the vehicle is stationary and the range extender generates power at different power levels; The range extender power output corresponding to a range extender noise level less than or equal to the wind noise level is determined as the recommended power output of the range extender for the corresponding vehicle speed sub-road segment. The control module is configured to control the range extender to operate at the recommended power generation capacity in each sub-segment in response to the first replenished power being greater than the required replenished power. The control module is also configured to, in response to the first replenished power being less than or equal to the power to be replenished, increase the recommended power generation of at least one of the sub-segments until, based on the increased recommended power generation and the travel time of each sub-segment, it is determined that the second replenished power of the range extender during this trip is greater than the power to be replenished. The range extender is controlled to operate at the increased recommended power output in each sub-segment.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method as described in any one of claims 1 to 6.

9. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method as described in any one of claims 1 to 6.

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