Power generation control method and device of range extender and computer readable storage medium
By obtaining vehicle power status data, determining power generation requirements and dividing power generation power, the problem of low power generation efficiency of range extenders in the prior art is solved, and more efficient power generation control and energy management are achieved.
Patent Information
- Application Number
- CN202411420684.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2024-12-27
AI Technical Summary
The existing power generation control method of range extenders fails to fully consider factors affecting power generation efficiency, resulting in low power generation efficiency.
By obtaining the power status data of the target vehicle, including the SOC change rate of the vehicle and the energy supply and demand data, determine whether there is a power generation demand, and divide the target power generation power according to different demand conditions to accurately control the power generation of the range extender.
Improve the power generation efficiency of range extenders, avoid energy waste, ensure sufficient power is provided before the peak of power demand, and generate power in the efficient working range.
Smart Images
Figure CN119189970A_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the field of vehicle technology, and specifically to a power generation control method and device for a range extender, and a computer-readable storage medium. Background Art
[0002] Extended-range new energy vehicles are favored by consumers because they can meet the needs of consumers for short-distance travel using pure electric drive, low vehicle cost and environmental protection, while solving the problem of mileage anxiety in long-distance travel. They are developing rapidly in China, with sales and market share continuing to rise.
[0003] The existing power generation control method of the range extender usually calculates the power generation power based on the difference between the target SOC set by the driver and the actual SOC, as well as the actual vehicle speed. It does not fully consider the factors that affect the power generation efficiency, resulting in low power generation efficiency of the range extender. Summary of the invention
[0004] In view of the above problems, the embodiments of the present application provide a power generation control method, device and computer-readable storage medium for a range extender, which are used to solve the technical problem that the factors affecting the power generation efficiency are not fully considered in the prior art, resulting in low power generation efficiency of the range extender.
[0005] According to one aspect of an embodiment of the present application, a method for controlling power generation of a range extender is provided, the method comprising:
[0006] Acquire power state data of the target vehicle, the power state data including a whole vehicle SOC change rate and first data, the first data including at least one of the following data: a whole vehicle real-time SOC and a whole vehicle energy supply and demand data;
[0007] Determining whether there is a demand for power generation according to the power status data;
[0008] The target power generation power of the range extender is determined according to the power generation demand, and the range extender is controlled to generate power according to the target power generation power.
[0009] According to another aspect of an embodiment of the present application, a power generation control device for a range extender is provided, the device comprising:
[0010] A power state data acquisition module, used to acquire power state data of a target vehicle, wherein the power state data includes a whole vehicle SOC change rate and first data, wherein the first data includes at least one of the following data: a whole vehicle real-time SOC and whole vehicle energy supply and demand data;
[0011] A power generation demand determination module, used to determine whether there is a power generation demand according to the power state data;
[0012] The power generation control module is used to determine the target power generation power of the range extender according to the power generation demand, and control the power generation of the range extender with the target power generation power.
[0013] In an optional manner, when the first data includes the whole vehicle SOC, the power generation demand determination module is further used to:
[0014] When the vehicle SOC change rate is less than the target SOC change rate, determining that there is a power generation demand for controlling the SOC change rate;
[0015] When the vehicle SOC change rate is greater than or equal to the target SOC change rate, determining that there is no power generation demand for controlling the SOC change rate;
[0016] When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, determining that there is no power generation demand to maintain the SOC of the whole vehicle;
[0017] When the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, it is determined that there is a power generation demand to maintain the SOC of the whole vehicle.
[0018] In an optional manner, the vehicle energy supply and demand data includes the battery long-term discharge power and the vehicle required power. In the case where the first data includes the vehicle energy supply and demand data, the power generation demand determination module is further used to:
[0019] When the vehicle SOC change rate is less than the target SOC change rate, determining that there is a power generation demand for controlling the SOC change rate;
[0020] When the vehicle SOC change rate is greater than or equal to the target SOC change rate, determining that there is no power generation demand for controlling the SOC change rate;
[0021] When the long-term discharge power of the battery is greater than the required power of the entire vehicle, determining that there is no power generation demand that meets the required power of the entire vehicle;
[0022] When the long-term discharge power of the battery is less than or equal to the required power of the entire vehicle, it is determined that there is a power generation demand that meets the required power of the entire vehicle.
[0023] In an optional manner, when the first data also includes the real-time SOC of the whole vehicle, the power generation demand determination module is further used to:
[0024] When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, determining that there is no power generation demand to maintain the SOC of the whole vehicle;
[0025] When the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, it is determined that there is a power generation demand to maintain the SOC of the whole vehicle.
[0026] In an optional manner, the power generation control device further includes a target SOC change rate determination module, which is used to:
[0027] The target SOC change rate is determined according to the power of the target vehicle and the energy consumption of the entire vehicle.
[0028] In an optional manner, the power generation control device further includes a target power generation determination module, which is used to:
[0029] When there is no power generation demand, determining the target power generation power of the range extender to be 0;
[0030] When there is a power generation demand, determining the target power generation power of the range extender to be a first power generation power;
[0031] When there are two power generation demands, determining the target power generation power of the range extender to be the second power generation power;
[0032] When there are three power generation demands, the target power generation power of the range extender is determined to be a third power generation power, wherein the first power generation power is less than the second power generation power, and the second power generation power is less than the third power generation power.
[0033] In an optional manner, the power generation control method further includes a power generation division module, which is used to:
[0034] The power generation power of the range extender is divided into a first power generation power, a second power generation power and a third power generation power according to the whole vehicle performance data, and the whole vehicle performance data includes the working efficiency of the range extender, the charging and discharging power of the battery, the driving power of the electric drive system, the whole vehicle power performance and the whole vehicle power retention efficiency.
[0035] In an optional manner, the power generation control module is further used to control the range extender to stop generating power when the speed of the target vehicle is within a preset speed range.
[0036] According to another aspect of an embodiment of the present application, a power generation control device of a range extender is provided, comprising: a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other through the communication bus;
[0037] The memory is used to store at least one executable instruction, and the executable instruction enables the processor to perform the operation of the power generation control method of the range extender as described above.
[0038] According to another aspect of an embodiment of the present application, a computer-readable storage medium is provided, wherein at least one executable instruction is stored in the storage medium, and when the executable instruction is executed on a power generation control device / apparatus of a range extender, the power generation control device / apparatus of the range extender performs the operation of the power generation control method of the range extender as described above.
[0039] The embodiment of the present application accurately determines the target power generation power under the current power generation demand based on the corresponding relationship between the power generation demand and the power generation power, and determines the power generation demand by considering the change trend of the current SOC. It can fully consider the future power generation demand to control the power generation of the range extender, and provide sufficient power before the peak of power demand, so that the range extender does not need to generate power at a high power to meet the current power generation demand, and can generate power at a power generation power in the high-efficiency working range, thereby effectively improving the power generation efficiency of the range extender.
[0040] Furthermore, the embodiment of the present application determines the power generation power corresponding to the range extender according to the different power generation demand conditions of the target vehicle, and can match the power generation power of the range extender with the actual power generation demand of the vehicle, thereby effectively improving the power generation control efficiency of the range extender while avoiding energy waste.
[0041] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation mode of the present invention is specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS
[0042] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:
[0043] Figure 1 A schematic flow chart of a power generation control method for a range extender provided in an embodiment of the present application is shown;
[0044] Figure 2 Another schematic diagram of the flow chart of the power generation control method of the range extender provided in the embodiment of the present application is shown;
[0045] Figure 3 A schematic diagram of the structure of a power generation control device for a range extender provided in an embodiment of the present application is shown;
[0046] Figure 4 A schematic structural diagram of a power generation control device for a range extender provided in an embodiment of the present application is shown. DETAILED DESCRIPTION
[0047] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.
[0048] Figure 1 The flowchart of the power generation control method of the range extender provided in the embodiment of the present application is shown, and the method is executed by the power generation control device of the range extender. Figure 1 As shown, the method comprises the following steps:
[0049] Step 110: Acquire power state data of the target vehicle, the power state data including the vehicle SOC (battery load state) change rate and first data, the first data including at least one of the following data: vehicle real-time SOC and vehicle energy supply and demand data;
[0050] Among them, the long-term discharge power of the battery refers to the ratio between the actual electric energy that can be output when the battery is continuously discharged for a long time and the theoretical value of the electric energy stored in the battery. The real-time SOC (battery load status) of the whole vehicle is the percentage of the remaining battery power. The power status data of the target vehicle can be obtained through the on-board diagnostic system (OBD), that is, the real-time data of the target vehicle is read through the on-board diagnostic system, including the real-time SOC of the whole vehicle, the long-term discharge power of the battery, the required power of the whole vehicle and the SOC change rate of the whole vehicle.
[0051] The embodiment of the present application can also obtain the real-time SOC of the whole vehicle, and determine the SOC change rate of the whole vehicle according to the change of the real-time SOC of the whole vehicle within a preset time period, and obtain the long-term discharge power of the battery by calculating the performance parameters of the battery, that is, the long-term discharge power of the battery is obtained by calculating the energy and capacity of the battery; the required efficiency of the whole vehicle is obtained through the vehicle's control strategy and actual operation data.
[0052] The embodiment of the present application can also determine the long-term discharge power of the battery and the required power of the entire vehicle based on the vehicle performance related data provided by the vehicle manufacturer.
[0053] Step 120: Determine whether there is a power generation demand according to the power state data;
[0054] In an embodiment of the present application, different power state data are used to determine different power generation requirements, wherein the vehicle SOC change rate is used to determine the power generation requirement for controlling the SOC change rate, the vehicle real-time SOC is used to determine the power generation requirement for maintaining the vehicle SOC, and the vehicle energy supply and demand data is used to determine the power generation requirement for meeting the vehicle power requirement. The embodiment of the present application determines the corresponding power generation requirement based on the power state data. For example, when the first data includes the vehicle real-time SOC and the vehicle energy supply and demand data, the power generation requirement includes the power generation requirement for maintaining the vehicle SOC, the power generation requirement for meeting the vehicle power requirement, and the power generation requirement for controlling the SOC change rate. The embodiment of the present application determines the current power generation requirement of the target vehicle based on the power state data, so that the target vehicle's range extender can be controlled to generate power with the corresponding power generation according to the current power generation requirement, thereby effectively improving the power generation efficiency of the range extender.
[0055] Step 130: Determine a target power generation power of the range extender according to the power generation demand, and control the range extender to generate power with the target power generation power.
[0056] Among them, the target power generation power under the current power generation demand can be accurately determined according to the corresponding relationship between the power generation demand and the power generation power, and the power generation demand is determined by taking into account the changing trend of the current SOC. The future power generation demand can be fully considered to control the power generation of the range extender, and sufficient power can be provided before the peak of power demand, so that the range extender does not need to generate power at high power to meet the current power generation demand, and can generate power at the power generation power in the high-efficiency working range, thereby effectively improving the power generation efficiency of the range extender.
[0057] In an optional manner, when the first data includes the vehicle SOC, step 120: determining whether there is a power generation demand according to the power state data includes:
[0058] When the vehicle SOC change rate is less than the target SOC change rate, determining that there is a power generation demand for controlling the SOC change rate;
[0059] In the embodiment of the present application, when the SOC change rate of the whole vehicle is less than the target SOC change rate, it is determined that the current SOC decreases at a faster rate. In order to reduce the actual SOC decrease rate, it is necessary to control the SOC change rate by generating electricity through the range extender, that is, there is a power generation demand to control the SOC change rate.
[0060] When the vehicle SOC change rate is greater than or equal to the target SOC change rate, determining that there is no power generation demand for controlling the SOC change rate;
[0061] In the embodiment of the present application, when the SOC change rate of the whole vehicle is greater than or equal to the target SOC change rate, it is determined that the current SOC decreases slowly, and there is no need to control the SOC change rate by generating electricity through the range extender, that is, there is no need to generate electricity to control the SOC change rate.
[0062] When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, determining that there is no power generation demand to maintain the SOC of the whole vehicle;
[0063] In an embodiment of the present application, the target SOC of the whole vehicle can be set according to actual driving needs. When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, that is, the current real-time SOC of the whole vehicle can meet the current driving needs, there is no need to increase the current SOC of the whole vehicle by power generation, thereby being able to accurately determine that there is no power generation demand to maintain the SOC of the whole vehicle.
[0064] When the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, it is determined that there is a power generation demand to maintain the SOC of the whole vehicle.
[0065] In the embodiment of the present application, when the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, that is, the current real-time SOC of the whole vehicle cannot meet or will not meet the current driving needs, it is necessary to increase the current SOC of the whole vehicle by generating electricity through the range extender, so as to accurately determine whether there is a power generation demand to maintain the SOC of the whole vehicle.
[0066] In an optional manner, the vehicle energy supply and demand data includes the battery long-term discharge power and the vehicle required power. In the case where the first data includes the vehicle energy supply and demand data, step 120: determining whether there is a power generation demand according to the power state data includes:
[0067] When the vehicle SOC change rate is less than the target SOC change rate, determining that there is a power generation demand for controlling the SOC change rate;
[0068] In the embodiment of the present application, when the SOC change rate of the whole vehicle is less than the target SOC change rate, it is determined that the current SOC decreases at a faster rate. In order to reduce the actual SOC decrease rate, it is necessary to control the SOC change rate by generating electricity through the range extender, that is, there is a power generation demand to control the SOC change rate.
[0069] When the vehicle SOC change rate is greater than or equal to the target SOC change rate, determining that there is no power generation demand for controlling the SOC change rate;
[0070] In the embodiment of the present application, when the SOC change rate of the whole vehicle is greater than or equal to the target SOC change rate, it is determined that the current SOC decreases slowly, and there is no need to control the SOC change rate by generating electricity through the range extender, that is, there is no need to generate electricity to control the SOC change rate.
[0071] When the long-term discharge power of the battery is greater than the required power of the entire vehicle, determining that there is no power generation demand that meets the required power of the entire vehicle;
[0072] In the embodiment of the present application, when the long-term discharge power of the battery is greater than the power required by the whole vehicle, that is, the current long-term discharge power of the battery can meet the current power demand of the whole vehicle, there is no need to generate electricity through the range extender to meet the power demand of the whole vehicle, so that it can be accurately determined that there is no power generation demand to meet the power demand of the whole vehicle.
[0073] When the long-term discharge power of the battery is less than or equal to the required power of the entire vehicle, it is determined that there is a power generation demand that meets the required power of the entire vehicle.
[0074] In an embodiment of the present application, when the long-term discharge power of the battery is less than or equal to the required power of the entire vehicle, that is, the current long-term discharge power of the battery cannot meet or will not meet the current power demand of the entire vehicle, it is necessary to generate electricity through the range extender to meet the required power of the entire vehicle, thereby being able to accurately determine that there is a power generation demand to meet the required power of the entire vehicle.
[0075] In an optional manner, when the first data also includes the real-time SOC of the vehicle, step 120: determining whether there is a power generation demand according to the power state data, further includes:
[0076] When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, determining that there is no power generation demand to maintain the SOC of the whole vehicle;
[0077] In an embodiment of the present application, the target SOC of the whole vehicle can be set according to actual driving needs. When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, that is, the current real-time SOC of the whole vehicle can meet the current driving needs, there is no need to increase the current SOC of the whole vehicle by power generation, thereby being able to accurately determine that there is no power generation demand to maintain the SOC of the whole vehicle.
[0078] When the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, it is determined that there is a power generation demand to maintain the SOC of the whole vehicle.
[0079] In the embodiment of the present application, when the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, that is, the current real-time SOC of the whole vehicle cannot meet or will not meet the current driving needs, it is necessary to increase the current SOC of the whole vehicle by generating electricity through the range extender, so as to accurately determine whether there is a power generation demand to maintain the SOC of the whole vehicle.
[0080] The embodiment of the present application determines whether there is a demand for power generation based on the power status data, and can accurately determine the current power generation demand of the target vehicle, so that the range extender can generate power accurately according to the power generation demand, effectively improving the power generation efficiency of the range extender.
[0081] In an optional manner, the power generation control method of the range extender further includes:
[0082] The target SOC change rate is determined according to the power of the target vehicle and the energy consumption of the entire vehicle.
[0083] The on-board battery management system can monitor the battery state of charge in real time, including the battery state of charge, voltage, current and other parameters, and the energy consumption of the whole vehicle can be calculated based on these parameters. The energy consumption of the whole vehicle can also be obtained through the whole vehicle energy consumption test.
[0084] In the embodiment of the present application, the target SOC change rate is the SOC change rate when the target vehicle's power is maintained in a preset power range and the vehicle's energy consumption is maintained in a preset energy consumption range. For example, the power is protected in the range of 40%-80%, and the vehicle's energy consumption is maintained in the range of the minimum vehicle energy consumption + 10%.
[0085] In the embodiment of the present application, the final target SOC change rate can be determined by conducting a real vehicle power retention test.
[0086] The embodiment of the present application determines the target SOC change rate based on the power level of the target vehicle and the energy consumption of the whole vehicle, and can determine that there is a power generation demand for controlling the SOC change rate when the SOC change rate of the whole vehicle is less than the target SOC change rate. It can determine whether there is a power generation demand for controlling the SOC change rate based on the power retention status of the target vehicle and the energy consumption status of the whole vehicle, and can effectively improve the control efficiency of the power generation power of the range extender.
[0087] In an optional manner, step 130: determining the target power generation power of the range extender according to the power generation demand includes:
[0088] Step 130: When there is no power generation demand, determining the target power generation power of the range extender to be 0;
[0089] In the embodiment of the present application, the power generation demand includes the power generation demand to maintain the SOC of the whole vehicle, the power generation demand to meet the power demand of the whole vehicle, and the power generation demand to control the SOC change rate. When the above power generation demands do not exist, there is no need to control the power generation of the range extender, that is, the target power generation power is 0.
[0090] Step 130: When there is a power generation demand, determining the target power generation power of the range extender to be a first power generation power;
[0091] In an embodiment of the present application, when there is one of the power generation needs of maintaining the SOC of the whole vehicle, the power generation needs of meeting the power demand of the whole vehicle, and the power generation needs of controlling the SOC change rate, the target power generation power of the range extender is determined to be the first power generation power, and the first power generation power is a lower power generation power.
[0092] Step 130: When there are two power generation demands, determining the target power generation power of the range extender to be the second power generation power;
[0093] In an embodiment of the invention, when there are two of the power generation needs of maintaining the SOC of the whole vehicle, the power generation needs of meeting the power demand of the whole vehicle, and the power generation needs of controlling the SOC change rate, the target power generation power of the range extender is determined to be the second power generation power, and the second power generation power is the medium power generation power.
[0094] Step 130: When there are three power generation demands, determine that the target power generation power of the range extender is a third power generation power, wherein the first power generation power is less than the second power generation power, and the second power generation power is less than the third power generation power.
[0095] When there is a power generation demand to maintain the SOC of the whole vehicle, a power generation demand to meet the power demand of the whole vehicle, and a power generation demand to control the SOC change rate, the target power generation power of the range extender is determined to be the third power generation power, and the third power generation power is a higher power generation power.
[0096] The embodiment of the present application determines the power generation power corresponding to the range extender according to the different power generation demand conditions of the target vehicle, and can match the power generation power of the range extender with the actual power generation demand of the vehicle, while avoiding energy waste and effectively improving the power generation control efficiency of the range extender.
[0097] In an optional manner, the power generation control method further includes:
[0098] The power generation power of the range extender is divided into a first power generation power, a second power generation power and a third power generation power according to the whole vehicle performance data, and the whole vehicle performance data includes the working efficiency of the range extender, the charging and discharging power of the battery, the driving power of the electric drive system, the whole vehicle power performance and the whole vehicle power retention efficiency.
[0099] In an embodiment of the present application, the power generation power of the high-efficiency working area of the range extender can be divided into a first power generation power, a second power generation power and a third power generation power according to the performance data of the whole vehicle, wherein the high-efficiency working area is that the generator of the range extender can operate with higher thermal efficiency and lower emissions, and the high-efficiency working area can be determined by the manufacturer's test data and the engine characteristic diagram.
[0100] The embodiment of the present application determines the first power generation power, the second power generation power and the third power generation power of the range extender by considering the working efficiency of the range extender, the charging and discharging power of the battery, the driving power of the electric drive system, the power performance of the whole vehicle and the power retention efficiency of the whole vehicle. This can effectively avoid the frequent operation of the range extender in the inefficient working area and ensure its operation in the efficient working area. It can effectively improve the utilization efficiency of fuel and reduce the loss in the energy conversion process. It can also accurately divide the first power generation power, the second power generation power and the third power generation power to correspond to different power generation demand situations, which can effectively improve the efficiency of power generation control of the range extender.
[0101] In an optional manner, when the target power generation is one of the first power generation, the second power generation and the third power generation, after controlling the range extender to generate power with the target power generation, the method further includes:
[0102] When the speed of the target vehicle is within a preset speed range, the range extender is controlled to stop generating electricity.
[0103] In an embodiment of the present application, when the speed of the target vehicle is within a preset range, such as when driving at a low speed, other noise sources of the vehicle (such as wind noise and tire noise) are relatively low, and the noise and vibration generated by the range extender's power generation process are more easily perceived by the occupants. In order to take into account NVH {noise, vibration and harshness} and provide a better riding experience, the range extender's power generation control is stopped at low speed.
[0104] Furthermore, when the target vehicle is running at a low speed or idling, the efficiency of the internal combustion engine is usually low, and controlling the range extender to stop generating electricity can reduce unnecessary energy consumption and emissions.
[0105] See also Figure 2 , which is another flow chart of the power generation control method of the range extender provided in the embodiment of the present application. In the embodiment of the present application, state 1, state 4 and state 6 are respectively the case where there is only one power generation demand, at which time the target power generation power of the range extender is the first power generation power; state 2 is the case where there is no power generation demand, at which time the range extender does not generate power, that is, the target power generation power is 0; state 3, state 5 and state 8 are the case where there are two power generation demands, at which time the target power generation power of the range extender is the second power generation power; state 7 is the case where there are three power generation demands, at which time the target power generation power of the range extender is the third power generation power.
[0106] Implementing the embodiments of the present application has the following beneficial effects:
[0107] The embodiment of the present application accurately determines the target power generation power under the current power generation demand based on the corresponding relationship between the power generation demand and the power generation power, and determines the power generation demand by taking into account the changing trend of the current SOC. It can fully consider the future power generation demand to control the power generation of the range extender, and provide sufficient power before the peak of power demand, so that the range extender does not need to generate power at a high power to meet the current power generation demand, and can generate power at a power generation power in the high-efficiency working range, thereby effectively improving the power generation efficiency of the range extender.
[0108] Furthermore, the embodiment of the present application determines the power generation power corresponding to the range extender according to the different power generation demand conditions of the target vehicle, and can match the power generation power of the range extender with the actual power generation demand of the vehicle, thereby effectively improving the power generation control efficiency of the range extender while avoiding energy waste.
[0109] Figure 3 The schematic diagram of the structure of the power generation control device of the range extender provided in the embodiment of the present application is shown. Figure 3 As shown, the device 300 includes: a power state data acquisition module 310, a power generation demand determination module 320 and a power generation control module 330;
[0110] A power status data acquisition module is used to acquire the power status data of the target vehicle, wherein the power status data includes the real-time SOC of the whole vehicle, the long-term discharge power of the battery, the required power of the whole vehicle and the SOC change rate of the whole vehicle;
[0111] A power generation demand determination module, used to determine whether there is a power generation demand according to the power state data;
[0112] The power generation control module is used to determine the target power generation power of the range extender according to the power generation demand, and control the power generation of the range extender with the target power generation power.
[0113] In an optional manner, when the first data includes the whole vehicle SOC, the power generation demand determination module is further used to:
[0114] When the vehicle SOC change rate is less than the target SOC change rate, determining that there is a power generation demand for controlling the SOC change rate;
[0115] When the vehicle SOC change rate is greater than or equal to the target SOC change rate, determining that there is no power generation demand for controlling the SOC change rate;
[0116] When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, determining that there is no power generation demand to maintain the SOC of the whole vehicle;
[0117] When the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, it is determined that there is a power generation demand to maintain the SOC of the whole vehicle.
[0118] In an optional manner, the vehicle energy supply and demand data includes the battery long-term discharge power and the vehicle required power. In the case where the first data includes the vehicle energy supply and demand data, the power generation demand determination module is further used to:
[0119] When the vehicle SOC change rate is less than the target SOC change rate, determining that there is a power generation demand for controlling the SOC change rate;
[0120] When the vehicle SOC change rate is greater than or equal to the target SOC change rate, determining that there is no power generation demand for controlling the SOC change rate;
[0121] When the long-term discharge power of the battery is greater than the required power of the entire vehicle, determining that there is no power generation demand that meets the required power of the entire vehicle;
[0122] When the long-term discharge power of the battery is less than or equal to the required power of the entire vehicle, it is determined that there is a power generation demand that meets the required power of the entire vehicle.
[0123] In an optional manner, when the first data also includes the real-time SOC of the whole vehicle, the power generation demand determination module is further used to:
[0124] When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, determining that there is no power generation demand to maintain the SOC of the whole vehicle;
[0125] When the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, it is determined that there is a power generation demand to maintain the SOC of the whole vehicle.
[0126] In an optional manner, the power generation control device further includes a target SOC change rate determination module, which is used to:
[0127] The target SOC change rate is determined according to the power of the target vehicle and the energy consumption of the entire vehicle.
[0128] In an optional manner, the power generation control device further includes a target power generation determination module, which is used to:
[0129] When there is no power generation demand, determining the target power generation power of the range extender to be 0;
[0130] When there is a power generation demand, determining the target power generation power of the range extender to be a first power generation power;
[0131] When there are two power generation demands, determining the target power generation power of the range extender to be the second power generation power;
[0132] When there are three power generation demands, the target power generation power of the range extender is determined to be a third power generation power, wherein the first power generation power is less than the second power generation power, and the second power generation power is less than the third power generation power.
[0133] In an optional manner, the power generation control method further includes a power generation division module, which is used to:
[0134] The power generation power of the range extender is divided into a first power generation power, a second power generation power and a third power generation power according to the whole vehicle performance data, and the whole vehicle performance data includes the working efficiency of the range extender, the charging and discharging power of the battery, the driving power of the electric drive system, the whole vehicle power performance and the whole vehicle power retention efficiency.
[0135] In an optional manner, the power generation control module is further used to control the range extender to stop generating power when the speed of the target vehicle is within a preset speed range.
[0136] According to another aspect of an embodiment of the present application, a power generation control device of a range extender is provided, comprising: a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other through the communication bus;
[0137] The memory is used to store at least one executable instruction, and the executable instruction enables the processor to perform the operation of the power generation control method of the range extender as described above.
[0138] According to another aspect of an embodiment of the present application, a computer-readable storage medium is provided, wherein at least one executable instruction is stored in the storage medium, and when the executable instruction is executed on a power generation control device / apparatus of a range extender, the power generation control device / apparatus of the range extender performs the operation of the power generation control method of the range extender as described above.
[0139] The embodiment of the present application accurately determines the target power generation power under the current power generation demand based on the corresponding relationship between the power generation demand and the power generation power, and determines the power generation demand by taking into account the changing trend of the current SOC. It can fully consider the future power generation demand to control the power generation of the range extender, and provide sufficient power before the peak of power demand, so that the range extender does not need to generate power at a high power to meet the current power generation demand, and can generate power at a power generation power in the high-efficiency working range, thereby effectively improving the power generation efficiency of the range extender.
[0140] Furthermore, the embodiment of the present application determines the power generation power corresponding to the range extender according to the different power generation demand conditions of the target vehicle, and can match the power generation power of the range extender with the actual power generation demand of the vehicle, thereby effectively improving the power generation control efficiency of the range extender while avoiding energy waste.
[0141] Figure 4 A schematic structural diagram of a power generation control device for a range extender provided in an embodiment of the present application is shown. The specific embodiment of the present invention does not limit the specific implementation of the power generation control device for the range extender.
[0142] like Figure 4 As shown, the power generation control device of the range extender may include: a processor (processor) 402, a communication interface (Communications Interface) 404, a memory (memory) 406, and a communication bus 408.
[0143] The processor 402, the communication interface 404, and the memory 406 communicate with each other via the communication bus 408. The communication interface 404 is used to communicate with other devices such as a client or other server network elements. The processor 402 is used to execute the program 410, which can specifically execute the relevant steps in the above-mentioned embodiment of the power generation control method for the range extender.
[0144] Specifically, the program 410 may include program code including computer executable instructions.
[0145] The processor 402 may be a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application. The one or more processors included in the power generation control device of the range extender may be processors of the same type, such as one or more CPUs; or may be processors of different types, such as one or more CPUs and one or more ASICs.
[0146] The memory 406 is used to store the program 410. The memory 406 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.
[0147] Program 410 can be specifically called by processor 402 to enable the power generation control device of the range extender to perform the following operations:
[0148] Acquire power state data of the target vehicle, the power state data including a whole vehicle SOC change rate and first data, the first data including at least one of the following data: a whole vehicle real-time SOC and a whole vehicle energy supply and demand data;
[0149] Determining whether there is a demand for power generation according to the power status data;
[0150] The target power generation power of the range extender is determined according to the power generation demand, and the range extender is controlled to generate power according to the target power generation power.
[0151] In an optional manner, the program 410 is called by the processor 402 to enable the power generation control device of the range extender to perform the following operations:
[0152] When the vehicle SOC change rate is less than the target SOC change rate, determining that there is a power generation demand for controlling the SOC change rate;
[0153] When the vehicle SOC change rate is greater than or equal to the target SOC change rate, determining that there is no power generation demand for controlling the SOC change rate;
[0154] When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, determining that there is no power generation demand to maintain the SOC of the whole vehicle;
[0155] When the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, it is determined that there is a power generation demand to maintain the SOC of the whole vehicle.
[0156] In an optional manner, the program 410 is called by the processor 402 to enable the power generation control device of the range extender to perform the following operations:
[0157] When the vehicle SOC change rate is less than the target SOC change rate, determining that there is a power generation demand for controlling the SOC change rate;
[0158] When the vehicle SOC change rate is greater than or equal to the target SOC change rate, determining that there is no power generation demand for controlling the SOC change rate;
[0159] When the long-term discharge power of the battery is greater than the required power of the entire vehicle, determining that there is no power generation demand that meets the required power of the entire vehicle;
[0160] When the long-term discharge power of the battery is less than or equal to the required power of the entire vehicle, it is determined that there is a power generation demand that meets the required power of the entire vehicle.
[0161] In an optional manner, the program 410 is called by the processor 402 to enable the power generation control device of the range extender to perform the following operations:
[0162] When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, determining that there is no power generation demand to maintain the SOC of the whole vehicle;
[0163] When the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, it is determined that there is a power generation demand to maintain the SOC of the whole vehicle.
[0164] In an optional manner, the program 410 is called by the processor 402 to enable the power generation control device of the range extender to perform the following operations:
[0165] The target SOC change rate is determined according to the power of the target vehicle and the energy consumption of the entire vehicle.
[0166] In an optional manner, the program 410 is called by the processor 402 to enable the power generation control device of the range extender to perform the following operations:
[0167] When there is no power generation demand, determining the target power generation power of the range extender to be 0;
[0168] When there is a power generation demand, determining the target power generation power of the range extender to be a first power generation power;
[0169] When there are two power generation demands, determining the target power generation power of the range extender to be the second power generation power;
[0170] When there are three power generation demands, the target power generation power of the range extender is determined to be a third power generation power, wherein the first power generation power is less than the second power generation power, and the second power generation power is less than the third power generation power.
[0171] In an optional manner, the program 410 is called by the processor 402 to enable the power generation control device of the range extender to perform the following operations:
[0172] The power generation power of the range extender is divided into a first power generation power, a second power generation power and a third power generation power according to the whole vehicle performance data, and the whole vehicle performance data includes the working efficiency of the range extender, the charging and discharging power of the battery, the driving power of the electric drive system, the whole vehicle power performance and the whole vehicle power retention efficiency.
[0173] In an optional manner, the program 410 is called by the processor 402 to enable the power generation control device of the range extender to perform the following operations:
[0174] When the speed of the target vehicle is within a preset speed range, the range extender is controlled to stop generating electricity.
[0175] The embodiment of the present application accurately determines the target power generation power under the current power generation demand based on the corresponding relationship between the power generation demand and the power generation power, and determines the power generation demand by taking into account the changing trend of the current SOC. It can fully consider the future power generation demand to control the power generation of the range extender, and provide sufficient power before the peak of power demand, so that the range extender does not need to generate power at a high power to meet the current power generation demand, and can generate power at a power generation power in the high-efficiency working range, thereby effectively improving the power generation efficiency of the range extender.
[0176] Furthermore, the embodiment of the present application determines the power generation corresponding to the range extender according to the different power generation requirements of the target vehicle, and can match the power generation of the range extender with the actual power generation requirements of the vehicle, while avoiding energy waste, and effectively improving the power generation control efficiency of the range extender. The embodiment of the present application provides a computer-readable storage medium, the storage medium stores at least one executable instruction, and when the executable instruction is executed on the power generation control device / apparatus of the range extender, the power generation control device / apparatus of the range extender executes the power generation control method of the range extender in any of the above method embodiments.
[0177] The executable instructions may be specifically used to enable the power generation control device / apparatus of the range extender to perform the following operations:
[0178] Acquire power state data of the target vehicle, the power state data including a whole vehicle SOC change rate and first data, the first data including at least one of the following data: a whole vehicle real-time SOC and a whole vehicle energy supply and demand data;
[0179] Determining whether there is a demand for power generation according to the power status data;
[0180] The target power generation power of the range extender is determined according to the power generation demand, and the range extender is controlled to generate power according to the target power generation power.
[0181] In an optional manner, the executable instructions enable the power generation control device / apparatus of the range extender to perform the following operations:
[0182] When the vehicle SOC change rate is less than the target SOC change rate, determining that there is a power generation demand for controlling the SOC change rate;
[0183] When the vehicle SOC change rate is greater than or equal to the target SOC change rate, determining that there is no power generation demand for controlling the SOC change rate;
[0184] When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, determining that there is no power generation demand to maintain the SOC of the whole vehicle;
[0185] When the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, it is determined that there is a power generation demand to maintain the SOC of the whole vehicle.
[0186] In an optional manner, the executable instructions enable the power generation control device / apparatus of the range extender to perform the following operations:
[0187] When the vehicle SOC change rate is less than the target SOC change rate, determining that there is a power generation demand for controlling the SOC change rate;
[0188] When the vehicle SOC change rate is greater than or equal to the target SOC change rate, determining that there is no power generation demand for controlling the SOC change rate;
[0189] When the long-term discharge power of the battery is greater than the required power of the entire vehicle, determining that there is no power generation demand that meets the required power of the entire vehicle;
[0190] When the long-term discharge power of the battery is less than or equal to the required power of the entire vehicle, it is determined that there is a power generation demand that meets the required power of the entire vehicle.
[0191] In an optional manner, the executable instructions enable the power generation control device / apparatus of the range extender to perform the following operations:
[0192] When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, determining that there is no power generation demand to maintain the SOC of the whole vehicle;
[0193] When the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, it is determined that there is a power generation demand to maintain the SOC of the whole vehicle.
[0194] In an optional manner, the executable instructions enable the power generation control device / apparatus of the range extender to perform the following operations:
[0195] The target SOC change rate is determined according to the power of the target vehicle and the energy consumption of the entire vehicle.
[0196] In an optional manner, the executable instructions enable the power generation control device / apparatus of the range extender to perform the following operations:
[0197] When there is no power generation demand, determining the target power generation power of the range extender to be 0;
[0198] When there is a power generation demand, determining the target power generation power of the range extender to be a first power generation power;
[0199] When there are two power generation demands, determining the target power generation power of the range extender to be the second power generation power;
[0200] When there are three power generation demands, the target power generation power of the range extender is determined to be a third power generation power, wherein the first power generation power is less than the second power generation power, and the second power generation power is less than the third power generation power.
[0201] In an optional manner, the executable instructions enable the power generation control device / apparatus of the range extender to perform the following operations:
[0202] The power generation power of the range extender is divided into a first power generation power, a second power generation power and a third power generation power according to the whole vehicle performance data, and the whole vehicle performance data includes the working efficiency of the range extender, the charging and discharging power of the battery, the driving power of the electric drive system, the whole vehicle power performance and the whole vehicle power retention efficiency.
[0203] In an optional manner, the executable instructions enable the power generation control device / apparatus of the range extender to perform the following operations:
[0204] When the speed of the target vehicle is within a preset speed range, the range extender is controlled to stop generating electricity.
[0205] The embodiment of the present application accurately determines the target power generation power under the current power generation demand based on the corresponding relationship between the power generation demand and the power generation power, and determines the power generation demand by taking into account the changing trend of the current SOC. It can fully consider the future power generation demand to control the power generation of the range extender, and provide sufficient power before the peak of power demand, so that the range extender does not need to generate power at a high power to meet the current power generation demand, and can generate power at a power generation power in the high-efficiency working range, thereby effectively improving the power generation efficiency of the range extender.
[0206] Furthermore, the embodiment of the present application determines the power generation power corresponding to the range extender according to the different power generation demand conditions of the target vehicle, and can match the power generation power of the range extender with the actual power generation demand of the vehicle, thereby effectively improving the power generation control efficiency of the range extender while avoiding energy waste.
[0207] The algorithms or displays provided herein are not inherently related to any particular computer, virtual system or other device. In addition, the embodiments of the present application are not directed to any particular programming language.
[0208] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. Similarly, in order to simplify the present invention and help understand one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, the various features of the embodiments of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. Wherein, the claims that follow the specific embodiment are thus clearly incorporated into the specific embodiment, wherein each claim itself is a separate embodiment of the present invention.
[0209] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and arranged in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and further may be divided into a plurality of submodules or subunits or subcomponents. Except that at least some of such features and / or processes or units are mutually exclusive.
[0210] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim that lists a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be understood as limitations on the order of execution.
Claims
1. A power generation control method for a range extender, characterized in that: The method comprises: Acquire power state data of the target vehicle, the power state data including a whole vehicle SOC change rate and first data, the first data including at least one of the following data: a whole vehicle real-time SOC and a whole vehicle energy supply and demand data; Determining whether there is a demand for power generation according to the power status data; The target power generation power of the range extender is determined according to the power generation demand, and the range extender is controlled to generate power according to the target power generation power.
2. The power generation control method of the range extender according to claim 1, characterized in that: In the case where the first data includes the vehicle SOC, determining whether there is a power generation demand according to the power state data includes: When the vehicle SOC change rate is less than the target SOC change rate, determining that there is a power generation demand for controlling the SOC change rate; When the vehicle SOC change rate is greater than or equal to the target SOC change rate, determining that there is no power generation demand for controlling the SOC change rate; When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, determining that there is no power generation demand to maintain the SOC of the whole vehicle; When the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, it is determined that there is a power generation demand to maintain the SOC of the whole vehicle.
3. The power generation control method of the range extender according to claim 1, characterized in that: The vehicle energy supply and demand data includes the battery long-term discharge power and the vehicle required power. When the first data includes the vehicle energy supply and demand data, determining whether there is a power generation demand based on the power state data includes: When the vehicle SOC change rate is less than the target SOC change rate, determining that there is a power generation demand for controlling the SOC change rate; When the vehicle SOC change rate is greater than or equal to the target SOC change rate, determining that there is no power generation demand for controlling the SOC change rate; When the long-term discharge power of the battery is greater than the required power of the entire vehicle, determining that there is no power generation demand that meets the required power of the entire vehicle; When the long-term discharge power of the battery is less than or equal to the required power of the entire vehicle, it is determined that there is a power generation demand that meets the required power of the entire vehicle.
4. The power generation control method of the range extender according to claim 3, characterized in that: In the case where the first data also includes the real-time SOC of the whole vehicle, the determining whether there is a power generation demand according to the power state data further includes: When the real-time SOC of the whole vehicle is greater than the target SOC of the whole vehicle, determining that there is no power generation demand to maintain the SOC of the whole vehicle; When the real-time SOC of the whole vehicle is less than or equal to the target SOC of the whole vehicle, it is determined that there is a power generation demand to maintain the SOC of the whole vehicle.
5. The power generation control method of the range extender according to claim 2 or 3, characterized in that: Also includes: The target SOC change rate is determined according to the power of the target vehicle and the energy consumption of the entire vehicle.
6. The power generation control method for a range extender according to any one of claims 1 to 4, characterized in that: Determining a target power generation power of the range extender according to the power generation demand includes: When there is no power generation demand, determining the target power generation power of the range extender to be 0; When there is a power generation demand, determining the target power generation power of the range extender to be a first power generation power; When there are two power generation demands, determining the target power generation power of the range extender to be the second power generation power; When there are three power generation demands, the target power generation power of the range extender is determined to be a third power generation power, wherein the first power generation power is less than the second power generation power, and the second power generation power is less than the third power generation power.
7. The power generation control method of the range extender according to claim 6, characterized in that: The method further comprises: The power generation power of the range extender is divided into a first power generation power, a second power generation power and a third power generation power according to the whole vehicle performance data, and the whole vehicle performance data includes the working efficiency of the range extender, the charging and discharging power of the battery, the driving power of the electric drive system, the whole vehicle power performance and the whole vehicle power retention efficiency.
8. The power generation control method of the range extender according to claim 6, characterized in that: When the target power generation is one of the first power generation, the second power generation and the third power generation, after controlling the range extender to generate power with the target power generation, the method further includes: When the speed of the target vehicle is within a preset speed range, the range extender is controlled to stop generating electricity.
9. A power generation control device for a range extender, characterized in that: The device comprises: A power state data acquisition module, used to acquire power state data of a target vehicle, wherein the power state data includes a whole vehicle SOC change rate and first data, wherein the first data includes at least one of the following data: a whole vehicle real-time SOC and whole vehicle energy supply and demand data; A power generation demand determination module, used to determine whether there is a power generation demand according to the power state data; The power generation control module is used to determine the target power generation power of the range extender according to the power generation demand, and control the power generation of the range extender with the target power generation power.
10. A power generation control device for a range extender, characterized in that: include: A processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface communicate with each other via the communication bus; The memory is used to store at least one executable instruction, and the executable instruction enables the processor to perform the operation of the power generation control method of the range extender as described in any one of claims 1-8.
11. A computer-readable storage medium, characterized in that: The storage medium stores at least one executable instruction, and when the executable instruction is executed on the power generation control device / apparatus of the range extender, the power generation control device / apparatus of the range extender performs the operation of the power generation control method of the range extender according to any one of claims 1 to 8.