Power generation control method and system of automobile generator, automobile and medium

Abstract

The embodiment of the invention relates to the technical field of power generation control of automobile generators, and provides a power generation control method and system of an automobile generator, an automobile and a medium, the method comprises the following steps: acquiring first gradient information of a current road section where a target automobile is located, and determining the attribute of the current road section based on the first gradient information; acquiring second gradient information corresponding to a first gradient of a future road section and distance information from the first gradient to the current road section, and determining attributes of the future road section based on the second gradient information and the distance information; the current charge state of a storage battery of the target automobile is obtained; determining a target power generation voltage of the storage battery based on the current road section attribute, the future road section attribute and the current charge state of the storage battery; and performing power generation control on a power generator of the target automobile based on the target power generation voltage. Therefore, predictive power generation control is achieved, overcharge and overdischarge of the storage battery are avoided, and oil consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation control of automobile generators, and in particular to a power generation control method, system, automobile and medium of an automobile generator. Background Art

[0002] At present, the environment and energy have become issues of increasing concern to people. In the automotive field, cars are also required to be efficient, energy-saving and environmentally friendly. The automotive power supply system is mainly composed of an accumulator (battery), an energy converter (generator), a starter and a control unit. When the engine is running, it will drive the generator to generate electricity to supply power to the car's electrical loads and charge the battery.

[0003] In traditional vehicles, the power generation voltage is regulated by the generator itself and is only related to the temperature. In particular, the power generation voltage is increased when the temperature is low, and the power generation voltage is reduced when the temperature is high. Although this power generation control method is simple and easy to implement, it is not conducive to the vehicle's power performance or economy due to the small number of factors considered, and it also affects the use and maintenance of the battery. Summary of the invention

[0004] The present invention provides a power generation control method, system, vehicle and medium for an automobile generator, so as to solve the problem that the power generation control method in the prior art takes fewer factors into consideration, which is not conducive to the power performance and economy of the vehicle, and also affects the use and maintenance of the battery, thereby realizing predictive power generation control, avoiding overcharging and over-discharging of the battery and saving fuel consumption.

[0005] The present invention provides a power generation control method for an automobile generator, comprising: Acquire first slope information of a current road section where the target vehicle is located, and determine the current road section attribute based on the first slope information; Obtaining second slope information corresponding to a first slope of a future road segment and distance information between the first slope and the current road segment, and determining attributes of the future road segment based on the second slope information and the distance information; Obtaining the current state of charge of the battery of the target vehicle; Determining a target power generation voltage of the battery based on the current road segment attribute, the future road segment attribute and the current state of charge of the battery; The power generation of the generator of the target vehicle is controlled based on the target power generation voltage.

[0006] In a possible implementation, the method further includes: Determine that the distance information of the second slope information within a preset slope range is a first distance, the distance information of the second slope information greater than or equal to a first slope threshold is a second distance, and the distance information of the second slope information less than or equal to the second slope threshold is a third distance; If the first distance is less than the second distance and the third distance, determining that the attribute of the future road segment is a flat road; If the second distance is less than the first distance and the third distance, determining that the attribute of the future road segment is uphill; If the third distance is smaller than the first distance and the second distance, it is determined that the attribute of the future road segment is downhill.

[0007] In a possible implementation, the method further includes: When the current road section attribute is a flat road and the future road section attribute is a flat road, if the current state of charge of the battery is greater than a first state of charge threshold, the target power generation voltage of the battery is determined to be a first preset voltage, otherwise, the target power generation voltage of the battery is determined to be a second preset voltage; When the current road section attribute is a flat road and the future road section attribute is an uphill road, if the current state of charge of the battery is greater than a second state of charge threshold, the target power generation voltage of the battery is determined to be a first preset voltage; otherwise, the target power generation voltage of the battery is determined to be a second preset voltage; When the current road section attribute is a flat road and the future road section attribute is a downhill road, if the current state of charge of the battery is greater than a third state of charge threshold, the target power generation voltage of the battery is determined to be a first preset voltage; otherwise, the target power generation voltage of the battery is determined to be a second preset voltage; Among them, the third state of charge threshold is smaller than the first state of charge threshold, the first state of charge threshold is smaller than the second state of charge threshold, and the second preset voltage is the voltage corresponding to the current state of charge stored in the preset state of charge voltage table.

[0008] In a possible implementation, the method further includes: When the attribute of the current road section is uphill and the attribute of the future road section is flat road or uphill, if the current state of charge of the battery is greater than a fourth state of charge threshold, the target power generation voltage of the battery is determined to be a first preset voltage, otherwise, the target power generation voltage of the battery is determined to be a second preset voltage; When the attribute of the current road section is uphill and the attribute of the future road section is downhill, if the current state of charge of the battery is greater than a fifth state of charge threshold, the target power generation voltage of the battery is determined to be a first preset voltage, otherwise, the target power generation voltage of the battery is determined to be a second preset voltage; The fifth state of charge threshold is less than the fourth state of charge threshold, and the second preset voltage is a voltage corresponding to the current state of charge stored in a preset state of charge voltage table.

[0009] In a possible implementation, the method further includes: Obtaining the current gearbox gear position of the target vehicle; When the current road section attribute is downhill and the current transmission gear is greater than zero, if the current state of charge of the battery is less than the sixth state of charge threshold, the target power generation voltage of the battery is determined to be the third preset voltage, otherwise, the target power generation voltage of the battery is determined to be the second preset voltage, wherein the second preset voltage is the voltage corresponding to the current state of charge stored in the preset state of charge voltage table.

[0010] In a possible implementation, the method further includes: If the first slope information is within a preset slope range, determining that the current road section attribute is a flat road; If the first slope information is greater than or equal to a first slope threshold, determining that the attribute of the current road section is uphill; If the first slope information is less than or equal to the second slope threshold, it is determined that the attribute of the current road section is downhill.

[0011] The present invention also provides a power generation control system for an automobile generator, comprising the following modules: An acquisition and determination module is used to acquire first slope information of a current road section where a target vehicle is located, and determine the current road section attribute based on the first slope information; acquire second slope information corresponding to a first slope of a future road section and distance information from the first slope to the current road section, and determine the future road section attribute based on the second slope information and the distance information; acquire a current state of charge of a battery of the target vehicle; and determine a target power generation voltage of the battery based on the current road section attribute, the future road section attribute, and the current state of charge of the battery; A control module is used to control the power generation of the generator of the target vehicle based on the target power generation voltage.

[0012] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the power generation control method of the automobile generator as described above is implemented.

[0013] The present invention also provides a non-transitory computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the power generation control method of the automobile generator as described in any one of the above is implemented.

[0014] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the method for controlling power generation of an automobile generator as described above is implemented.

[0015] The power generation control method, system, automobile and medium of the automobile generator provided by the present invention obtain the first slope information of the current road section where the target automobile is located, and determine the current road section attribute based on the first slope information; obtain the second slope information corresponding to the first slope of the future road section and the distance information of the first slope from the current road section, and determine the future road section attribute based on the second slope information and the distance information; obtain the current state of charge of the battery of the target automobile; determine the target power generation voltage of the battery based on the current road section attribute, the future road section attribute and the current state of charge of the battery; and control the power generation of the generator of the target automobile based on the target power generation voltage. Compared with the power generation control method in the prior art, which considers fewer factors, is not conducive to the power performance of the vehicle, is not conducive to the economy of the vehicle, and also affects the use and maintenance of the battery, the present solution controls the full use of braking energy and reduces the power consumption of the generator by controlling the generator to turn off the power generation function or increase the power generation voltage under specific working conditions. The intelligent generator of the automobile, combined with the battery charge state and future road information, can be used to perform predictive power generation control, realize uphill power generation stop, downhill energy recovery, and save fuel consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a flow chart of the power generation control method of the automobile generator provided by the present invention.

[0018] Figure 2 It is a structural schematic diagram of a power generation control system of an automobile generator provided by the present invention.

[0019] Figure 3 It is a connection block diagram of the power generation control system of the automobile generator provided by the present invention.

[0020] Figure 4 It is a structural schematic diagram of the automobile provided by the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] To facilitate understanding of the embodiments of the present invention, specific embodiments will be further explained below in conjunction with the accompanying drawings. The embodiments do not constitute a limitation on the embodiments of the present invention.

[0023] Smart generators for cars communicate with the onboard computer (Electronic Control Unit, ECU) controller through low-cost serial communication networks (Local Interconnect Network, LIN) to exchange information, which can achieve the functions of variable excitation and output voltage regulation. The ECU controls the generator to shut down the power generation function or increase the power generation voltage under specific working conditions, so as to fully utilize the braking energy and reduce the power consumption of the generator. Using smart generators for cars, combined with the battery's state of charge (State Of Charge, SOC) and the road map information ahead, predictive power generation control can be performed. According to the current road slope and the road slope information within the next 2km, it can stop power generation when going uphill and recover energy when going downhill, which plays a role in saving fuel consumption.

[0024] Figure 1 FIG. 1 is a flow chart of a method for controlling the power generation of an automobile generator provided by the present invention. Figure 1 As shown, the method includes the following: S11. Acquire first slope information of a current road section where the target vehicle is located, and determine the attribute of the current road section based on the first slope information.

[0025] The embodiment of the present invention focuses on the field of diesel engine generators, Figure 3 The connection block diagram of the power generation control system of the automobile generator shown in the figure is explained in detail. First, the attributes of the current section of the target car are judged, and the section attributes include flat road, uphill and downhill. The first slope information of the current section of the target car obtained by the electronic horizon can be obtained and stored through the CAN (Controller Area Network) line. The electronic horizon is a technology based on the ADASIS communication protocol, which is used to provide vehicles with road information beyond the sensor perception range. This technology provides vehicles with beyond-line-of-sight road traffic information such as road curvature, slope, lane line shape and lane attributes through map data, helping vehicles understand the relevant road conditions ahead, thereby supporting assisted driving functions.

[0026] Further, determine the current road section attribute according to the first slope information, and output the current road section flag bit flg_now.

[0027] If -r1 < the first slope information < r1, then determine that the current road section attribute flag bit flg_now = 1, indicating a flat road; If the first slope information ≥ r1, then determine that the current road section attribute flag bit flg_now = 2, indicating an uphill; If the first slope information ≤ -r1, then determine that the current road section attribute flag bit flg_now = 3, indicating a downhill.

[0028] The above -r1 and r1 can be set according to actual applications, and the embodiments of the present invention do not make specific limitations.

[0029] S12. Obtain the second slope information corresponding to the first slope of the future road section and the distance information of the first slope from the current road section, and determine the future road section attribute based on the second slope information and the distance information.

[0030] Further, the system needs to predict the slope change of the future road section. This can be achieved by analyzing the slope trend of the current road section and the road design information. For example, through the data collected by in - vehicle sensors, the system can predict the change of the next slope and combine the distance information to evaluate the attributes of the future road section, such as the steepness and length of the slope.

[0031] In the embodiments of the present invention, the distance information of the future road section of the electronic horizon can be obtained and stored through the CAN line, and the nearest distances for the future road section to enter a flat road, an uphill, and a downhill can be confirmed according to the corresponding distances of the slopes.

[0032] Specifically, determine that the distance information of the second slope information corresponding to the first slope of the future road section within the preset slope range is the first distance; the distance information when the second slope information is greater than or equal to the first slope threshold is the second distance; the distance information when the second slope information is less than or equal to the second slope threshold is the third distance.

[0033] For example, for the second slope information corresponding to the first slope of the future road section, the distance where -r1 < the second slope information < r1 is denoted as s1; the distance where the second slope information ≥ r1 is denoted as s2; the distance where the second slope information ≤ -r1 is denoted as s3.

[0034] Further, if the first distance is less than the second distance and the third distance, that is, the first distance is the smallest among the three distances, then determine that the future road section attribute is a flat road; if the second distance is less than the first distance and the third distance, then determine that the future road section attribute is an uphill; if the third distance is less than the first distance and the second distance, then determine that the future road section attribute is a downhill.

[0035] For example, take min[s1, s2, s3] and record the future road segment slope attribute corresponding to the minimum distance, that is, if s1 = min[s1, s2, s3], then the future road segment attribute flag flg_re = 1, and the nearest future road segment to the current one is a flat road; If s2 = min[s1, s2, s3], the future road segment attribute flag flg_re = 2, and the nearest future road segment to the current one is uphill; If s3 = min[s1, s2, s3], the future road segment attribute flag flg_re = 3, and the nearest future road segment to the current one is downhill.

[0036] S13: Obtain the current state of charge of the battery of the target vehicle.

[0037] The current state of charge of the target vehicle's battery is acquired through the battery sensor, which collects data on parameters such as battery charge and temperature, and transmits this data to the control unit through the vehicle's communication bus system. The control unit uses this data to calculate the battery's state of charge, which is the ratio of the battery's remaining capacity to its capacity in a fully charged state.

[0038] S14. Determine a target power generation voltage of the battery based on the current road section attribute, the future road section attribute, and the current state of charge of the battery.

[0039] When the current road section attribute is flat road and the future road section attribute is flat road, if the current state of charge of the battery is greater than the first state of charge threshold, the target power generation voltage of the battery is determined to be the first preset voltage, otherwise, the target power generation voltage of the battery is determined to be the second preset voltage.

[0040] When the current road section attribute is a flat road and the future road section attribute is an uphill road, if the current state of charge of the battery is greater than the second state of charge threshold, the target power generation voltage of the battery is determined to be the first preset voltage, otherwise, the target power generation voltage of the battery is determined to be the second preset voltage.

[0041] When the current road section attribute is a flat road and the future road section attribute is a downhill road, if the current state of charge of the battery is greater than the third state of charge threshold, the target power generation voltage of the battery is determined to be the first preset voltage, otherwise, the target power generation voltage of the battery is determined to be the second preset voltage.

[0042] The third state of charge threshold is smaller than the first state of charge threshold, the first state of charge threshold is smaller than the second state of charge threshold, and the second preset voltage is a voltage corresponding to the current state of charge stored in the preset state of charge voltage table.

[0043] Specifically, set the power generation voltage according to the current road section attribute flag bit, the future road section attribute flag bit, and the battery SOC: First, determine whether the electronic horizon data credibility flag bit is equal to 1. If not, it means the data is abnormal and unreliable, then set the power generation voltage U = Uset (Uset is the second preset voltage), where the second preset voltage is queried from a pre-stored table of different voltages corresponding to different state of charge.

[0044] Optionally, if the electronic horizon data credibility flag bit is equal to 1, indicating that the data is normal and reliable, then when flg_now = 1 represents the current flat road: flg_re = 1 indicates that the future road section attribute is flat. If SOC > SOC1 (the first state of charge threshold), it means the current state of charge of the battery is greater than the threshold and can generate electricity, then set the power generation voltage U = 22V; if SOC < SOC1, it means the current state of charge of the battery is less than the threshold and needs to be charged, then set the power generation voltage U = Uset; flg_re = 2 indicates that the future road section attribute is uphill. If SOC > SOC2 (the second state of charge threshold), it means the current state of charge of the battery is greater than the threshold and can generate electricity, then set the power generation voltage U = 22V; if SOC < SOC2, it means the current state of charge of the battery is less than the threshold and needs to be charged, then set the power generation voltage U = Uset; flg_re = 3 indicates that the future road section attribute is downhill. If SOC > SOC3 (the third state of charge threshold), it means the current state of charge of the battery is greater than the threshold and can generate electricity, then set the power generation voltage U = 22V; if SOC < SOC3, it means the current state of charge of the battery is less than the threshold and needs to be charged, then set the power generation voltage U = Uset; Among them, SOC3 < SOC1 < SOC2.

[0045] Optionally, when the current road section attribute is uphill and the future road section attribute is flat or uphill, if the current state of charge of the battery is greater than the fourth state of charge threshold, then determine the target power generation voltage of the battery as the first preset voltage, otherwise, determine the target power generation voltage of the battery as the second preset voltage; When the current road section attribute is uphill and the future road section attribute is downhill, if the current state of charge of the battery is greater than the fifth state of charge threshold, then determine the target power generation voltage of the battery as the first preset voltage, otherwise, determine the target power generation voltage of the battery as the second preset voltage; Among them, the fifth state of charge threshold is less than the fourth state of charge threshold, and the second preset voltage is the voltage corresponding to the current state of charge stored in the preset state of charge voltage table.

[0046] Specifically, when flg_now = 2 represents the current uphill: flg_re = 1 or flg_re = 2. If SOC > SOC4 (the fourth state of charge threshold), then U = 22V; otherwise U = Uset; flg_re = 3. If SOC > SOC5 (the fifth state of charge threshold), then U = 22V; otherwise U = Uset; Where SOC5 < SOC4.

[0047] Optionally, obtain the current gear position of the target vehicle; when the current road segment attribute is downhill and the current gear position is greater than zero, if the current state of charge of the battery is less than the sixth state of charge threshold, then determine that the target power generation voltage of the battery is the third preset voltage, otherwise, determine that the target power generation voltage of the battery is the second preset voltage, where the second preset voltage is the voltage corresponding to the current state of charge stored in the preset state of charge voltage table.

[0048] Specifically, when flg_now = 3 indicates that it is currently downhill: If the gear position > 0 and SOC < SOC6 (the sixth state of charge threshold), then determine that the target power generation voltage U of the battery = 30V (the third preset voltage) for downhill energy recovery; otherwise U = Uset. The gear position can be obtained through CAN messages.

[0049] It should be noted that the above state of charge thresholds can be set according to actual applications, and the embodiments of the present invention do not make specific limitations.

[0050] S15. Perform power generation control on the generator of the target vehicle based on the target power generation voltage.

[0051] The control unit sends the determined power generation voltage U to the generator through LIN communication, so that the generator performs power generation control on the generator of the target vehicle based on the target power generation voltage. To ensure that the battery can be properly charged and discharged under different driving and load conditions.

[0052] The power generation control method of the automobile generator provided by the present invention obtains the first slope information of the current road section where the target automobile is located, and determines the current road section attribute based on the first slope information; obtains the second slope information corresponding to the first slope of the future road section and the distance information of the first slope from the current road section, and determines the future road section attribute based on the second slope information and the distance information; obtains the current state of charge of the battery of the target automobile; determines the target power generation voltage of the battery based on the current road section attribute, the future road section attribute and the current state of charge of the battery; and controls the power generation of the generator of the target automobile based on the target power generation voltage. Compared with the power generation control method in the prior art, which considers fewer factors, is not conducive to the power performance of the vehicle, is not conducive to the economy of the vehicle, and also affects the use and maintenance of the battery, the present method controls the generator to fully utilize the braking energy and reduce the power consumption of the generator by controlling the generator to shut down the power generation function or increase the power generation voltage under specific working conditions. The intelligent generator of the automobile, combined with the battery charge state and future road information, can be used to perform predictive power generation control, realize uphill power generation stop, downhill energy recovery, and save fuel consumption.

[0053] The power generation control system of the automobile generator provided by the present invention is described below. The power generation control system of the automobile generator described below and the power generation control method of the automobile generator described above can be referred to each other.

[0054] Figure 2 This is a schematic diagram of the structure of the power generation control system of the automobile generator provided by the present invention, which specifically includes: The acquisition and determination module 201 is used to acquire the first slope information of the current road section where the target car is located, and determine the current road section attribute based on the first slope information; acquire the second slope information corresponding to the first slope of the future road section and the distance information of the first slope from the current road section, and determine the future road section attribute based on the second slope information and the distance information; acquire the current state of charge of the battery of the target car; determine the target power generation voltage of the battery based on the current road section attribute, the future road section attribute and the current state of charge of the battery. For detailed description, please refer to the relevant description corresponding to the above method embodiment, which will not be repeated here.

[0055] The control module 202 is used to control the generator of the target vehicle to generate electricity based on the target power generation voltage. For detailed description, please refer to the relevant description of the above method embodiment, which will not be repeated here.

[0056] Figure 4 An example of a physical structure diagram of a car is shown below. Figure 4As shown, the car may include: a processor 810, a communication interface 820, a memory 830 and a communication bus 840, wherein the processor 810, the communication interface 820 and the memory 830 communicate with each other through the communication bus 840. The processor 810 may call the logic instructions in the memory 830 to execute the power generation control method of the car generator, the method comprising: obtaining the first slope information of the current road section where the target car is located, and determining the current road section attribute based on the first slope information; obtaining the second slope information corresponding to the first slope of the future road section and the distance information from the first slope to the current road section, and determining the future road section attribute based on the second slope information and the distance information; obtaining the current state of charge of the battery of the target car; determining the target power generation voltage of the battery based on the current road section attribute, the future road section attribute and the current state of charge of the battery; and controlling the power generation of the generator of the target car based on the target power generation voltage.

[0057] In addition, the logic instructions in the above-mentioned memory 830 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0058] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the power generation control method of the automobile generator provided by the above-mentioned methods, which includes: obtaining first slope information of the current section where the target automobile is located, and determining the current section attribute based on the first slope information; obtaining second slope information corresponding to the first slope of a future section and distance information from the first slope to the current section, and determining the future section attribute based on the second slope information and the distance information; obtaining the current state of charge of the battery of the target automobile; determining the target power generation voltage of the battery based on the current section attribute, the future section attribute and the current state of charge of the battery; and controlling the power generation of the generator of the target automobile based on the target power generation voltage.

[0059] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the power generation control method of the automobile generator provided by the above-mentioned methods, the method comprising: obtaining first slope information of a current section where the target automobile is located, and determining the current section attribute based on the first slope information; obtaining second slope information corresponding to the first slope of a future section and distance information from the first slope to the current section, and determining the future section attribute based on the second slope information and the distance information; obtaining the current state of charge of the battery of the target automobile; determining the target power generation voltage of the battery based on the current section attribute, the future section attribute and the current state of charge of the battery; and controlling the power generation of the generator of the target automobile based on the target power generation voltage.

[0060] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0061] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling power generation of an automobile generator, characterized in that: include: Acquire first slope information of a current road section where the target vehicle is located, and determine the current road section attribute based on the first slope information; Obtaining second slope information corresponding to a first slope of a future road segment and distance information between the first slope and the current road segment, and determining attributes of the future road segment based on the second slope information and the distance information; Obtaining the current state of charge of the battery of the target vehicle; Determining a target power generation voltage of the battery based on the current road segment attribute, the future road segment attribute and the current state of charge of the battery; The power generation of the generator of the target vehicle is controlled based on the target power generation voltage.

2. The method according to claim 1, characterized in that The determining the future road segment attribute based on the second slope information and the distance information includes: Determine that the distance information of the second slope information within a preset slope range is a first distance, the distance information of the second slope information greater than or equal to a first slope threshold is a second distance, and the distance information of the second slope information less than or equal to the second slope threshold is a third distance; If the first distance is less than the second distance and the third distance, determining that the attribute of the future road segment is a flat road; If the second distance is less than the first distance and the third distance, determining that the attribute of the future road segment is uphill; If the third distance is smaller than the first distance and the second distance, it is determined that the attribute of the future road segment is downhill.

3. The method according to claim 2, characterized in that The determining the target power generation voltage of the battery based on the current road section attribute, the future road section attribute and the current state of charge of the battery includes: When the current road section attribute is a flat road and the future road section attribute is a flat road, if the current state of charge of the battery is greater than a first state of charge threshold, the target power generation voltage of the battery is determined to be a first preset voltage, otherwise, the target power generation voltage of the battery is determined to be a second preset voltage; When the current road section attribute is a flat road and the future road section attribute is an uphill road, if the current state of charge of the battery is greater than a second state of charge threshold, the target power generation voltage of the battery is determined to be a first preset voltage; otherwise, the target power generation voltage of the battery is determined to be a second preset voltage; When the current road section attribute is a flat road and the future road section attribute is a downhill road, if the current state of charge of the battery is greater than a third state of charge threshold, the target power generation voltage of the battery is determined to be a first preset voltage; otherwise, the target power generation voltage of the battery is determined to be a second preset voltage; Among them, the third state of charge threshold is smaller than the first state of charge threshold, the first state of charge threshold is smaller than the second state of charge threshold, and the second preset voltage is the voltage corresponding to the current state of charge stored in the preset state of charge voltage table.

4. The method according to claim 2, characterized in that: The determining the target power generation voltage of the battery based on the current road section attribute, the future road section attribute and the current state of charge of the battery includes: When the attribute of the current road section is uphill and the attribute of the future road section is flat road or uphill, if the current state of charge of the battery is greater than a fourth state of charge threshold, the target power generation voltage of the battery is determined to be a first preset voltage, otherwise, the target power generation voltage of the battery is determined to be a second preset voltage; When the attribute of the current road section is uphill and the attribute of the future road section is downhill, if the current state of charge of the battery is greater than a fifth state of charge threshold, the target power generation voltage of the battery is determined to be a first preset voltage, otherwise, the target power generation voltage of the battery is determined to be a second preset voltage; The fifth state of charge threshold is less than the fourth state of charge threshold, and the second preset voltage is a voltage corresponding to the current state of charge stored in a preset state of charge voltage table.

5. The method according to claim 2, characterized in that: The determining the target power generation voltage of the battery based on the current road section attribute, the future road section attribute and the current state of charge of the battery includes: Obtaining the current gearbox gear position of the target vehicle; When the current road section attribute is downhill and the current transmission gear is greater than zero, if the current state of charge of the battery is less than the sixth state of charge threshold, the target power generation voltage of the battery is determined to be the third preset voltage, otherwise, the target power generation voltage of the battery is determined to be the second preset voltage, wherein the second preset voltage is the voltage corresponding to the current state of charge stored in the preset state of charge voltage table.

6. The method according to claim 1, characterized in that The step of obtaining first slope information of a current road section where the target vehicle is located, and determining the current road section attribute based on the first slope information, includes: If the first slope information is within a preset slope range, determining that the current road section attribute is a flat road; If the first slope information is greater than or equal to a first slope threshold, determining that the attribute of the current road section is uphill; If the first slope information is less than or equal to the second slope threshold, it is determined that the attribute of the current road section is downhill.

7. A power generation control system for an automobile generator, characterized in that: include: An acquisition and determination module, used to acquire first slope information of a current road section where the target vehicle is located, and determine the current road section attribute based on the first slope information; Obtaining second slope information corresponding to a first slope of a future road segment and distance information between the first slope and the current road segment, and determining attributes of the future road segment based on the second slope information and the distance information; Obtaining the current state of charge of the battery of the target vehicle; Determining a target power generation voltage of the battery based on the current road segment attribute, the future road segment attribute and the current state of charge of the battery; A control module is used to control the power generation of the generator of the target vehicle based on the target power generation voltage.

8. An automobile, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the computer program, the power generation control method of the automobile generator according to any one of claims 1 to 6 is implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the power generation control method of the automobile generator according to any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the power generation control method of the automobile generator according to any one of claims 1 to 6 is implemented.

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