A control method, system, terminal device and storage medium for a range-extended vehicle

Abstract

The present application discloses a control method, system, terminal device and storage medium for a range-extended vehicle. The present application relates to the technical field of new energy vehicles. The method includes: in response to the vehicle entering a target mode, acquiring map navigation data; determining each vehicle speed segment according to the map navigation data, and determining the total power consumption of the vehicle when traveling to the destination according to each vehicle speed segment and the basic power generation power of each vehicle speed segment; reading the remaining power of the battery of the range-extended vehicle, and determining the starting vehicle speed segment of the range extender according to the remaining power of the vehicle battery and the total power consumption; controlling the vehicle to start the range extender after entering the starting vehicle speed segment. The technical solution provided by the present application improves the operating economy of the range extender, ensures the energy use for traveling to the destination, and at the same time, can also avoid the noise problem caused by the operation of the range extender at low speeds.

Description

Technical Field

[0001] The present disclosure generally relates to the technical field of new energy vehicles, and particularly to a control method, system, terminal device and storage medium for a range-extended vehicle. Background Art

[0002] With the development of technology, new energy vehicles have gradually integrated into the lives of the general public.

[0003] In the automotive industry, the further development of pure electric vehicles and hybrid electric vehicle technologies has solved some energy problems, but there are also many drawbacks. Restricted by the development bottleneck of the battery industry, the driving range of pure electric vehicles cannot meet the psychological needs of people. In this case, adding a range extender to electric vehicles has become an option for new energy vehicles to break the ice. Without a breakthrough in battery technology in the short term, developing range-extended electric vehicles is undoubtedly the best way to solve this problem.

[0004] Currently, after analyzing the road test data of range-extended electric vehicles and the usage information feedback by users, the conclusion is that: when driving in pure electric mode, the vehicle vibration and noise are at a relatively low level; when the range extender operates normally in range-extended mode, the generated vibration and noise are relatively significant, affecting the driving experience of the occupants in the vehicle. The acceptance of range-extended electric vehicles by customers depends to a large extent on their noise, vibration and harshness (NVH) characteristics. Since the main vibration and noise source of the range extender system is still the engine, and the operation of the engine is directly related to the power reserve set by the user for the battery. For example, in some scenarios, when the vehicle is running at a low speed, the range extender of the vehicle is still in the on state, which will cause noise problems during vehicle driving. In addition, whether it is needed or not, or setting an absolute index, such as when the speed is greater than a certain speed threshold, or when the battery power is lower than 20%, the range extender is turned on, which will make it difficult for the range extender to reach the best energy efficiency state. Therefore, for the energy efficiency control of range-extended vehicles, it is an important factor affecting the use comfort and economy of the vehicle. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a control method for a range-extended vehicle, and the method includes the following steps:

[0006] According to the technical solution provided by the embodiment of the present application, it includes:

[0007] In response to the vehicle entering the target mode, obtain map navigation data;

[0008] According to the map navigation data, determine each vehicle speed segment, and according to each vehicle speed segment and the basic power generation power of each vehicle speed segment, determine the total power consumption for the vehicle to travel to the destination;

[0009] Read the remaining power of the battery of the range-extended vehicle, and determine the starting vehicle speed range of the range extender according to the remaining power of the vehicle battery and the total power consumption.

[0010] According to the technical solution provided by the embodiment of the present application, determining the total power consumption of the vehicle traveling to the destination according to each vehicle speed range and the basic power generation power of each vehicle speed range includes:

[0011] Determine the driving duration of each vehicle speed range according to the map navigation data;

[0012] Obtain the basic power generation power of each vehicle speed range determined in advance;

[0013] Based on the basic power generation power of each vehicle speed range and the driving duration of each vehicle speed range, determine the total power consumption of the vehicle traveling to the destination.

[0014] According to the technical solution provided by the embodiment of the present application, determining the starting vehicle speed range of the range extender according to the remaining power of the vehicle battery and the total power consumption includes:

[0015] If the remaining power and the total power consumption satisfy the first condition, do not start the range extender;

[0016] If the remaining power and the total power consumption satisfy the second condition, determine the starting vehicle speed range, and start the range extender when the range-extended vehicle travels to the vehicle speed range.

[0017] According to the technical solution provided by the embodiment of the present application, if the remaining power and the total power consumption satisfy the second condition, determine the starting vehicle speed range, and start the range extender when the range-extended vehicle travels to the vehicle speed range, including:

[0018] If the difference between the remaining power and the total power consumption is less than a preset safety threshold, determine the efficiency level of the range extender for different vehicle speed ranges;

[0019] Determine the planned power generation of each vehicle speed range according to the efficiency level;

[0020] According to the planned power generation of each vehicle speed range, determine the target power generation vehicle speed range;

[0021] Start the range extender when the range-extended vehicle travels to the target power generation vehicle speed range.

[0022] According to the technical solution provided by the embodiment of the present application, determining the target power generation vehicle speed range according to the planned power generation of each vehicle speed range includes:

[0023] Associate the planned power generation of each vehicle speed range with the efficiency level, and obtain the planned power generation of the vehicle speed ranges of each efficiency level;

[0024] Perform calculations step by step starting from the highest efficiency level. If the difference between the sum of the remaining battery power and the estimated power generation of all efficiency levels above the current efficiency level and the total power consumption is greater than a preset safety threshold, determine the vehicle speed segments corresponding to the current efficiency level and all efficiency levels above the current efficiency level as the target power generation vehicle speed segments.

[0025] According to the technical solution provided by the embodiment of the present application, after obtaining the basic power generation power of each vehicle speed segment determined in advance, the method further includes:

[0026] Obtain the slope data of each vehicle speed segment according to the map navigation data;

[0027] Correct the basic power generation power of each vehicle speed segment according to the slope data.

[0028] According to the technical solution provided by the embodiment of the present application, after determining the starting vehicle speed segment of the range extender, the method further includes:

[0029] Calculate the remaining battery power after reaching the destination.

[0030] In a second aspect, the present application provides a control system for a range-extended vehicle, including:

[0031] An acquisition module, configured to acquire map navigation data in response to the vehicle entering the target mode;

[0032] A calculation module, configured to determine each vehicle speed segment according to the map navigation data, and determine the total power consumption of the vehicle when driving to the destination according to each vehicle speed segment and the basic power generation power of each vehicle speed segment

[0033] A determination module, configured to read the remaining battery power of the range-extended vehicle, and determine the starting vehicle speed segment of the range extender according to the remaining battery power of the vehicle battery and the total power consumption;

[0034] A control module, configured to control the vehicle to start the range extender after entering the starting vehicle speed segment.

[0035] In a third aspect, the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the control method for the range-extended vehicle as described above are implemented.

[0036] In a fourth aspect, the present application provides a computer-readable storage medium, which has a computer program. When the computer program is executed by a processor, the steps of the control method for the range-extended vehicle as described above are implemented.

[0037] In the above technical solution of the present application, by using map navigation data, it is divided into different vehicle speed segments, and according to the total power consumption of the generator corresponding to each vehicle speed segment and the driving mileage, a strategy for starting the generator in the target vehicle speed segment is given. When it is determined that the vehicle speed segment with a higher speed is the target vehicle speed segment, the generator will only be started when reaching this target vehicle speed segment during this driving process. Moreover, the determination of the target vehicle speed segment can be determined according to the map navigation data of this driving, so that a vehicle speed segment with high selection efficiency and little noise impact can be selected as the target vehicle speed segment.

[0038] At the same time, based on the remaining power and the total power consumption to determine the target vehicle speed segment, eliminating the current situation of only considering speed data or only considering the remaining battery power data, making the control of the generator more in line with the requirements of high efficiency and low noise.

[0039] Therefore, this solution improves the operating economy of the generator, ensures the energy use for traveling to the destination, and at the same time, can avoid the noise problem caused by the operation of the generator at low speeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects, and advantages of the present application will become more apparent:

[0041] Figure 1 is a schematic flowchart of a control method for a range-extended vehicle provided in Embodiment 1 of the present application;

[0042] Figure 2 is a schematic structural diagram of a control system for a range-extended vehicle provided in Embodiment 2 of the present application;

[0043] Figure 3 is a schematic structural diagram of a terminal device provided in Embodiment 3 of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] The following further details the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. Additionally, it should be noted that for the sake of description, only parts related to the invention are shown in the drawings.

[0045] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0046] Embodiment 1

[0047] This embodiment provides a control method for a range-extended vehicle. Figure 1It is a schematic flowchart of the control method for a range-extended vehicle provided in Embodiment 1 of this application. As Figure 1 shown, the method includes the following steps:

[0048] S1. In response to the vehicle entering the target mode, obtain map navigation data;

[0049] This solution can be executed by a vehicle control unit (VCU). It can be understood that the vehicle control unit can be connected to various components of the vehicle through communication cables or wirelessly, or through the vehicle's CAN (Controller Area Network) bus. Based on this connection, control of various components of the vehicle can be achieved, and information on the operating states of various components can be collected.

[0050] The target mode of this solution can be triggered and selected by the user, and specifically can include a super energy-saving mode. For example, in the default settings, the user sets it to the super energy-saving mode, or the user adjusts it to the super energy-saving mode by pressing a button or turning a knob every time they get in the car. The super energy-saving mode can be used to set a predefined control strategy for the range extender of the range-extended vehicle to turn on the range extender under trigger conditions to achieve autonomous control of the range extender.

[0051] The map navigation data can be information such as the roads along the travel route obtained through map data after the user turns on the navigation function. Specifically, it can include information such as the slope information, road width information, road attribute information, and average vehicle speed on the roads along the way.

[0052] In this solution, after the user turns on the navigation using the in-vehicle computer, they can choose to turn on the super energy-saving function. The VCU receives the map navigation data through the CAN network.

[0053] S2. According to the map navigation data, determine each vehicle speed segment, and according to each vehicle speed segment and the basic power generation power of each vehicle speed segment, determine the total power consumption of the vehicle when driving to the destination;

[0054] According to the map navigation data, specifically, it can be based on the road attribute information, road width information, average driving speed of vehicles on the road, length of street lights on the road, and distance between adjacent street lights among them, and can also be analyzed in combination with the time period to determine each vehicle speed segment on the navigation route of this trip. The vehicle speed segment, it can be understood, for example, vehicle speed segments of 0 - 20 km / h, 20 - 40 km / h, 40 - 60 km / h, 60 - 80 km / h, and 80 - 100 km / h, etc. The vehicle speed segment can also be divided every 30 units, which is not limited here.

[0055] The basic power generation power of each vehicle speed segment can be determined according to the working efficiency of the range extender configured in the current range-extended vehicle. Specifically, the basic power generation power of each vehicle speed segment can be obtained through tests and other means. For example, the power generated by the conversion of fuel combustion in the range extender into electrical energy. The following table shows the basic power generation power of a certain range-extended vehicle in each vehicle speed segment:

[0056]

[0057] Among them, different vehicle models can achieve the power balance during driving on flat roads by calibrating the specific power generation power. Specifically, through the universal characteristics of the range extender, the efficiency at each power generation power can be known.

[0058] Here, in addition to determining the basic power generation power of each vehicle speed segment, the range extender efficiency can also be determined for the basic power generation power of each vehicle speed segment. For example, the efficiency can be divided into ten grades from 1 to 10. If 1 is the optimal, the range extender efficiency corresponding to each vehicle speed segment can be determined according to the basic power generation power.

[0059] In a feasible embodiment, optionally, after obtaining the pre-determined basic power generation power of each vehicle speed segment, the method further includes:

[0060] Obtaining the slope data of each vehicle speed segment according to the map navigation data;

[0061] Correcting the basic power generation power of each vehicle speed segment according to the slope data.

[0062] The basic power generation power provided by this solution can be determined according to experimental data, such as the average value of multiple groups of power generation powers measured on a flat road surface. However, in the case where the road has a certain slope, it will have a certain impact on the power generation power of the range extender. For example, if there is a 5° uphill section on the current road, then on this section, the power generation power will be different from the above statistical data. For example, in the vehicle speed segment of 20-40 km / h, the actually measured power generation power will be 7.5 kw, and in the vehicle speed segment of 40-60 km / h, the actually measured power generation power will be close to 12 kw, and so on. Similarly, if the slope is larger, the impact on its power generation power will be greater, and if it is a downhill section, the opposite impact will also occur. Therefore, this solution can correct the basic power generation power of each vehicle speed segment according to the slope data to improve the calculation accuracy of the basic power generation power of each vehicle speed segment, and at the same time can improve the calculation accuracy for the total power consumption required for the entire navigation route subsequently.

[0063] In this solution, the VCU can obtain the total power consumption of the driving route by multiplying the driving duration of each vehicle speed segment by the corresponding basic power generation power and performing accumulation according to the map navigation data.

[0064] In a feasible embodiment, optionally, determining the total power consumption of the vehicle traveling to the destination based on the basic power generation of each vehicle speed segment includes:

[0065] Determining the driving duration of each vehicle speed segment according to the map navigation data;

[0066] Obtaining the pre-determined basic power generation of each vehicle speed segment;

[0067] Based on the basic power generation of each vehicle speed segment and the driving duration of each vehicle speed segment, determining the total power consumption of the vehicle traveling to the destination.

[0068] In this solution, after determining the navigation route, the vehicle speed segments can be determined according to the map navigation data, and the driving duration of each vehicle speed segment can be determined according to the length of each vehicle speed segment. And based on whether there is slope correction for each vehicle speed segment, it is assumed that the total power consumption required to be driven by the range extender throughout the journey. Among them, the total power consumption can be the product of the basic power generation of each vehicle speed segment and the driving duration of the current vehicle speed segment, and is obtained by accumulating segment by segment.

[0069] Through calculation, this solution can obtain the total power consumption required to travel to the destination if the range extender participates in power generation throughout the journey, and slope correction can be performed to improve the accuracy of the calculation result of the total power consumption.

[0070] For the situation with slopes, the power after slope correction can be used to calculate the slope part separately, so as to improve the accuracy of calculating the total power consumption.

[0071] S3. Reading the remaining power of the battery of the range-extended vehicle, and determining the starting vehicle speed segment of the range extender according to the remaining power of the vehicle battery and the total power consumption.

[0072] After determining the total power consumption, the remaining power of the battery of the range-extended vehicle can be obtained, and the starting vehicle speed segment of the range extender can be determined according to the remaining power of the vehicle battery and the total power consumption; after the vehicle enters the starting vehicle speed segment, the range extender is started.

[0073] For example, if the remaining battery power is sufficient to independently supply the energy for the vehicle's current driving route, the vehicle range extender can be controlled not to start throughout the entire section. If the remaining battery power is insufficient and the range extender needs to be used to supplement the electrical energy, the starting speed segments of the range extender can be determined according to the efficiency of each vehicle speed segment, and the range extender can be started when the vehicle reaches the corresponding speed segment to supplement the electrical energy. By controlling according to the efficiency of the range extender in each vehicle speed segment, the utilization rate of the energy-producing substances in the range extender can be improved. Generally, the efficiency is relatively high in the high-speed stage, such as 80 - 100 km / h. In this way, the range extender can be started during high-speed driving to avoid the noise problem caused by the operation of the range extender at low speeds.

[0074] A range extender is an additional energy storage component installed on a pure electric vehicle to increase its driving range. A range-extended electric vehicle is an electric vehicle that uses other energy sources to supplement electrical energy when the battery runs out. Its main working characteristic is that it works in the pure electric mode in most cases and in the range-extended mode in a few cases, that is, the range extender generates electrical energy to drive the motor or charge the battery.

[0075] In a feasible embodiment, optionally, determining the starting speed segments of the range extender according to the remaining battery power of the vehicle and the total power consumption includes:

[0076] If the remaining power and the total power consumption satisfy the first condition, the range extender is not started;

[0077] If the remaining power and the total power consumption satisfy the second condition, the starting speed segments are determined, and the range extender is started when the range-extended vehicle travels to the speed segments.

[0078] Among them, the first condition can be that the remaining power is greater than the total power consumption, or that the difference between the remaining power and the safety threshold is greater than the total power consumption. In this case, the range extender can not be started, and the vehicle can be powered by the battery power throughout the journey to reach the destination.

[0079] The second condition can be that the remaining power is less than the total power consumption, or that the difference between the remaining power and the safety threshold is less than the total power consumption. In this case, it can be determined that the range extender needs to be started, and the starting section of the range extender can be determined according to the power generation power situation.

[0080] It can be understood that the safety threshold here can be the power reserve set to ensure driving safety, generally 20%, or when starting the super energy-saving mode, it can be set with the remaining power of 3% - 5% as the safety threshold.

[0081] With such a setting, this solution can ensure the battery safety of the range-extended vehicle during driving.

[0082] In this embodiment, by identifying different conditions, it can be determined whether the range-extended vehicle needs to start the range extender on the driving route of this navigation, thereby improving the energy utilization rate.

[0083] In a feasible embodiment, specifically, if the remaining power and the total power consumption satisfy the second condition, the starting vehicle speed range is determined, and when the range-extended vehicle travels to the vehicle speed range, the range extender is started, including:

[0084] If the difference between the remaining power and the total power consumption is less than the preset safety threshold, the efficiency levels of the range extender at different vehicle speed ranges are determined;

[0085] The planned power generation amounts at each vehicle speed range are determined according to the efficiency levels;

[0086] The target power generation vehicle speed range is determined according to the planned power generation amounts at each vehicle speed range;

[0087] When the range-extended vehicle travels to the target power generation vehicle speed range, the range extender is started.

[0088] Here, if the difference between the remaining power and the total power consumption is less than the preset safety threshold, it is determined that starting is required. In this case, the efficiency levels of the range extender at different vehicle speed ranges need to be determined. For example, when the vehicle speed range is 0 - 20 km / h, the efficiency level is 6, and when it is 80 - 100 km / h, the efficiency level is 1, and so on.

[0089] After determining different efficiency levels, the planned power generation amounts at each vehicle speed range can be determined according to the efficiency levels. For example, if the driving duration of the vehicle speed range of 80 - 100 km / h is 0.5 h, the planned power generation amount for this vehicle speed range is 12.5 kw·h.

[0090] Furthermore, the target power generation vehicle speed range can be determined according to the planned power generation amounts at each vehicle speed range, where the target power generation vehicle speed range can be determined from the highest to the lowest efficiency level. For example, if the current battery power still requires 25 kw·h of power to reach the destination, it can be determined starting from the vehicle speed range with the highest level downwards. For example, the planned power generation amount for the vehicle speed range of 80 - 100 km / h is 12.5 kw·h, and the planned power generation amount for the vehicle speed range of 100 - 120 km / h is 15 kw·h, then only these two vehicle speed ranges need to be determined as the target power generation vehicle speed range.

[0091] With such a setting, this solution can not only ensure an adequate energy supply but also adopt an efficient range extender intervention form to improve the energy utilization rate of the primary energy.

[0092] In a feasible embodiment, optionally, determining a target power generation vehicle speed range according to the estimated power generation amounts of the respective vehicle speed ranges includes:

[0093] Associating the estimated power generation amounts of the respective vehicle speed ranges with the efficiency levels, and obtaining the estimated power generation amounts of the vehicle speed ranges of the respective efficiency levels;

[0094] Calculating step by step from the highest efficiency level. If the difference between the sum of the remaining battery power and the estimated power generation amounts of the current efficiency level and all the efficiency levels above the current efficiency level and the total power consumption is greater than a preset safety threshold, then determine the vehicle speed ranges corresponding to the current efficiency level and all the efficiency levels above the current efficiency level as the target power generation vehicle speed ranges.

[0095] S4. After the vehicle enters the starting vehicle speed range, start the range extender.

[0096] Here, the following examples can be used for understanding:

[0097] If: (remaining battery power - safety threshold) < total power consumption < (remaining battery power - safety threshold) + power generation amount with efficiency of 1, then control the range extender to start only in the vehicle speed range with efficiency of 1.

[0098] If: (remaining battery power - safety threshold) + power generation amount with efficiency of 1 < total power consumption < (remaining battery power - safety threshold) + power generation amounts with efficiencies of 1 and 2, then control the range extender to start only in the vehicle speed ranges with efficiencies of 1 and 2.

[0099] If: (remaining battery power - safety threshold) + power generation amounts with efficiencies of 1 and 2 < total power consumption < (remaining battery power - safety threshold) + power generation amounts with efficiencies of 1, 2, and 3, then control the range extender to start only in the vehicle speed ranges with efficiencies of 1, 2, and 3.

[0100] If: (remaining battery power - safety threshold) + power generation amounts with efficiencies of 1, 2, and 3 < total power consumption < (remaining battery power - safety threshold) + power generation amounts with efficiencies of 1, 2, 3, and 4, then control the range extender to start only in the vehicle speed ranges with efficiencies of 1, 2, 3, and 4.

[0101] If: (remaining battery power - safety threshold) + power generation amounts with efficiencies of 1, 2, and 3 < total power consumption < (remaining battery power - safety threshold) + power generation amounts with efficiencies of 1, 2, 3, and 4, then control the range extender to start only in the vehicle speed ranges with efficiencies of 1, 2, 3, and 4.

[0102] If: (remaining battery power - safety threshold) + power generation amounts with efficiencies of 1, 2, 3, and 4 < total power consumption < (remaining battery power - safety threshold) + power generation amounts with efficiencies of 1, 2, 3, 4, and 5, then control the range extender to start only in the vehicle speed ranges with efficiencies of 1, 2, 3, 4, and 5.

[0103] If: (remaining battery power - safety threshold) + power generation amounts with efficiencies of 1, 2, 3, 4, and 5 < total power consumption, the user will be reminded that the current SOC and road conditions do not meet the conditions for entering the super energy-saving function, and the super energy-saving function will be automatically exited.

[0104] With such a setting in this solution, the target power generation vehicle speed segments can be determined step by step, thereby improving the energy utilization efficiency of the range-extended vehicle during this driving process. And starting the range extender preferentially on the highway section can ensure that the degree of noise impact brought by the range extender during vehicle driving is not too high to affect the user experience.

[0105] For the technical solution provided in this embodiment, in response to the vehicle entering the target mode, map navigation data is acquired; according to the map navigation data, each vehicle speed segment is determined, and according to each vehicle speed segment and the basic power generation power of each vehicle speed segment, the total power consumption for the vehicle to travel to the destination is determined; the remaining power of the battery of the range-extended vehicle is read, and according to the remaining power of the vehicle battery and the total power consumption, the starting vehicle speed segment of the range extender is determined; after the vehicle enters the starting vehicle speed segment, the range extender is started. By using the map navigation data, it is divided into different vehicle speed segments, and according to the power generation power of the range extender corresponding to each vehicle speed segment and the total power consumption of the driving mileage, a strategy for starting the range extender to generate power in the target vehicle speed segment is given, improving the operating economy of the range extender, ensuring the energy use for traveling to the destination, and at the same time, it can also avoid the noise problem brought by the operation of the range extender at low speeds.

[0106] Based on the above technical solutions, optionally, after determining the starting vehicle speed segment of the range extender, the method further includes:

[0107] Calculate the remaining power of the battery after reaching the destination.

[0108] Specifically, reminding the user by calculating the remaining power when reaching the destination can allow the user to determine whether to exit the super energy-saving mode according to their own needs, or whether to perform energy replenishment such as charging or refueling in a timely manner, improving the user experience.

[0109] Embodiment 2

[0110] Corresponding to Embodiment 1, this embodiment provides a control system for a range-extended vehicle, Figure 2 which is a schematic structural diagram of the control system for a range-extended vehicle provided in Embodiment 2 of this application.

[0111] As Figure 2 shown, the system includes:

[0112] An acquisition module 100, configured to acquire map navigation data in response to the vehicle entering a target mode;

[0113] A calculation module 200, configured to determine each vehicle speed segment according to the map navigation data, and determine the total power consumption of the vehicle traveling to the destination according to each vehicle speed segment and the basic power generation power of each vehicle speed segment

[0114] A determination module 300, configured to read the remaining power of the battery of the range-extended vehicle, and determine the starting vehicle speed segment of the range extender according to the remaining power of the vehicle battery and the total power consumption

[0115] A control module 400, configured to control the vehicle to start the range extender after entering the starting vehicle speed segment.

[0116] The technical solution provided in this embodiment acquires map navigation data in response to the vehicle entering a target mode; determines each vehicle speed segment according to the map navigation data, and determines the total power consumption of the vehicle traveling to the destination according to each vehicle speed segment and the basic power generation power of each vehicle speed segment; reads the remaining power of the battery of the range-extended vehicle, and determines the starting vehicle speed segment of the range extender according to the remaining power of the vehicle battery and the total power consumption; controls the vehicle to start the range extender after entering the starting vehicle speed segment. By using the map navigation data, it divides the data into different vehicle speed segments, and gives a strategy for starting the range extender to generate electricity in the target vehicle speed segment according to the power generation power of the range extender and the total power consumption of the driving mileage corresponding to each vehicle speed segment, improves the operating economy of the range extender, ensures the energy use for traveling to the destination, and at the same time, can also avoid the noise problem caused by the operation of the range extender at low speeds.

[0117] The system provided in the embodiment of the present application can implement each process implemented by the above method embodiment, has corresponding function modules and beneficial effects, and in order to avoid repetition, it will not be described in detail here.

[0118] Embodiment 3

[0119] This embodiment provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the control method of the range-extended vehicle as described in any one of the above items. Figure 3 It is a schematic structural diagram of the terminal device provided in Embodiment 3 of the present application. As Figure 3As shown, the terminal device 300 is, for example, a computer. The computer system includes a central processing unit (CPU) 301, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 302 or a program loaded from a storage section into a random access memory (RAM) 303. In the RAM 303, various programs and data required for system operations are also stored. The CPU 301, ROM 302, and RAM 303 are connected to each other via a bus 304. An input / output (I / O) interface 305 is also connected to the bus 304.

[0120] The following components are connected to the I / O interface 305: an input section 306 including a keyboard, a mouse, etc.; an output section including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 308 including a hard disk, etc.; and a communication section 309 including a network interface card such as a LAN card, a modem, etc. The communication section 309 performs communication processing via a network such as the Internet. A drive is also connected to the I / O interface 305 as needed. A removable medium 311, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 310 as needed so that a computer program read from it can be installed into the storage section 308 as needed.

[0121] In particular, according to an embodiment of the present invention, the process of the control method of the range extender vehicle described in the above embodiment can be implemented as a computer software program. For example, an embodiment of the present invention includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains program codes for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication section, and / or installed from a removable medium. When the computer program is executed by a central processing unit (CPU) 301, the above functions defined in the system of the present application are executed.

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

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

[0124] The units involved in the embodiments of the present invention can be implemented in software or in hardware. The described units can also be provided in a processor. In some cases, the names of these units do not constitute a limitation on the units themselves. The described units or modules can also be provided in a processor. For example, it can be described as: a processor includes a first generation module, an acquisition module, a search module, a second generation module, and a merging module. In some cases, the names of these units or modules do not constitute a limitation on the units or modules themselves. For example, the input module can also be described as "an acquisition module for acquiring a plurality of instances to be detected in the base table".

[0125] As another aspect, the present application also provides a computer-readable medium, which can be included in the terminal device described in the above embodiments; or can exist alone without being assembled into the terminal device. The above computer-readable medium carries one or more programs. When the above one or more programs are executed by a terminal device, the terminal device is caused to implement the control method of the range-extended vehicle as described in the above embodiments.

[0126] It should be noted that although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of the two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by a plurality of modules or units.

[0127] In addition, although the steps of the methods in the present disclosure are described in a specific order in the drawings, this does not require or imply that the steps must be performed in that specific order, or that all the steps shown must be performed to achieve the desired result. Additionally or alternatively, some steps can be omitted, multiple steps can be combined into one step for execution, and / or one step can be decomposed into multiple steps for execution, etc.

[0128] Through the description of the above embodiments, those skilled in the art can easily understand that the example embodiments described herein can be implemented by software or by a combination of software and necessary hardware.

[0129] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the present application that have similar functions.

Claims

1. A control method for a range-extended vehicle, characterized in that The method includes: Upon the vehicle entering the target mode, obtaining map navigation data; Determining each vehicle speed segment according to the map navigation data; Determining the total power consumption of the vehicle when driving to the destination according to each vehicle speed segment and the basic power generation of each vehicle speed segment; If the difference between the remaining battery power of the vehicle and the total power consumption is less than a preset safety threshold, determining the efficiency level of the range extender for different vehicle speed segments; Determining the planned power generation of each vehicle speed segment according to the efficiency level; Determining the target power generation vehicle speed segment according to the planned power generation of each vehicle speed segment, including: Associating the planned power generation of each vehicle speed segment with the efficiency level, and obtaining the planned power generation of the vehicle speed segments of each efficiency level; Calculating level by level from the highest efficiency level. If the difference between the sum of the remaining power and the planned power generation of the current efficiency level and all efficiency levels above the current efficiency level, and the total power consumption is greater than the preset safety threshold, determining the vehicle speed segments corresponding to the current efficiency level and all efficiency levels above the current efficiency level as the target power generation vehicle speed segments; When the range extender vehicle travels to the target power generation vehicle speed segment, starting the range extender.

2. The control method of the range-extended vehicle according to claim 1, wherein Determining the total power consumption of the vehicle when driving to the destination according to each vehicle speed segment and the basic power generation of each vehicle speed segment, including: Determining the driving duration of each vehicle speed segment according to the map navigation data; Obtaining the pre-determined basic power generation of each vehicle speed segment; Based on the basic power generation of each vehicle speed segment and the driving duration of each vehicle speed segment, determining the total power consumption of the vehicle when driving to the destination.

3. The control method of the range-extended vehicle according to claim 1, wherein Determining the starting vehicle speed segment of the range extender according to the remaining battery power of the vehicle and the total power consumption, including: If the remaining power and the total power consumption meet the first condition, not starting the range extender; If the remaining power and the total power consumption meet the second condition, determining the starting vehicle speed segment, and when the range extender vehicle travels to the vehicle speed segment, starting the range extender.

4. The control method of the range extender vehicle according to claim 2, wherein After obtaining the pre-determined basic power generation of each vehicle speed segment, the method further includes: Obtaining the slope data of each vehicle speed segment according to the map navigation data; Correcting the basic power generation of each vehicle speed segment according to the slope data.

5. The control method of the range-extended vehicle according to claim 1, wherein After determining the starting vehicle speed segment of the range extender, the method further includes: Calculating the remaining battery power after reaching the destination.

6. A control system for a range-extended vehicle, characterized in that, For implementing a control method of a range extender vehicle as described in claim 1, the system includes: An obtaining module, configured to obtain map navigation data upon the vehicle entering the target mode; A calculating module, configured to determine each vehicle speed segment according to the map navigation data, and determine the total power consumption of the vehicle when driving to the destination according to each vehicle speed segment and the basic power generation of each vehicle speed segment A determining module, configured to read the remaining battery power of the range extender vehicle, and determine the starting vehicle speed segment of the range extender according to the remaining battery power of the vehicle and the total power consumption; A control module, configured to control the vehicle to start the range extender after entering the starting vehicle speed segment.

7. A terminal device, characterized in that, The terminal device includes: A memory, configured to store a program; and A processor, configured to execute the control method of the range-extended vehicle according to any one of claims 1-5 by invoking the program stored in the memory.

8. A readable storage medium, characterized in that, A program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the control method of the range-extended vehicle according to any one of claims 1-5 is implemented.

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