Self-adaptive adjustment method, device and equipment for vehicle power generation system and storage medium

Abstract

The invention relates to the technical field of vehicles, in particular to a self-adaptive adjustment method, device and equipment for a vehicle power generation system and a storage medium. Real-time power requirements and the current storage battery state are monitored, the power requirements correspond to real-time pedal changes, and storage battery state data comprise the remaining electric quantity, the health state and the like; the operation strategy of the generator is dynamically adjusted according to the information, the system can intelligently select different power generation modes according to the electric quantity interval of the storage battery and the actual driving state of the vehicle so as to keep the storage battery in a relatively mild charging and discharging working condition all the time, over-charging and over-discharging are avoided, battery damage is reduced, the service life of the storage battery is prolonged, and the service life of the vehicle is prolonged. And energy waste is reduced.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a method, device, equipment and storage medium for adaptively adjusting a vehicle power generation system. Background Art

[0002] As the global energy crisis intensifies and environmental pollution becomes increasingly serious, energy transformation has become the focus of global attention. As one of the main sources of energy consumption and pollution, the impact of traditional fuel vehicles on the environment and energy has prompted governments and automakers to seek cleaner and more efficient transportation solutions. Therefore, new energy vehicles, especially plug-in hybrid vehicles and extended-range vehicles, have become an important direction for the transformation of the automotive industry because they combine the range of fuel vehicles with the low emission characteristics of pure electric vehicles.

[0003] With the rapid development of new energy vehicles, power management systems have become the key to technological progress. As the core component of new energy vehicles, the performance of batteries directly affects the vehicle's endurance, safety and service life. However, the battery charging and discharging process is complex and is affected by many factors, including driving habits, ambient temperature, battery aging, etc. In order to maximize battery performance and life, it is necessary to accurately control the battery charging and discharging strategy while ensuring the vehicle's power requirements. This requires that the power generation system of such hybrid vehicles can intelligently and dynamically adjust the power supply strategy according to the battery status and driving conditions to achieve optimal energy distribution and battery health management.

[0004] Therefore, how to design a battery that can ensure that the battery of a new energy vehicle maintains a mild charging and discharging condition in various driving scenarios in order to extend its service life and maintain stable performance has become an urgent problem to be solved in this field. Summary of the invention

[0005] The main purpose of the present invention is to provide a method, device, equipment and storage medium for adaptive adjustment of a vehicle power generation system, aiming to solve the technical problem in the prior art of how to design a method that can ensure that the battery of a new energy vehicle maintains a mild charging and discharging condition in various driving scenarios to extend its service life and maintain stable performance.

[0006] To achieve the above object, the present invention provides a method for adaptively adjusting a vehicle power generation system, the method comprising the following steps: Determine battery charging requirement information based on real-time battery parameters; According to the vehicle control information, the vehicle power demand information is obtained; The generator operation strategy is adjusted according to the battery charging demand information and the vehicle power demand information.

[0007] Optionally, determining battery charging requirement information according to real-time battery parameters includes: According to the real-time battery parameters, the remaining power and the battery charging and discharging status at the current moment are obtained; Determining a power range according to the remaining power; The battery charging requirement information is determined according to the battery charging and discharging state and the power range.

[0008] Optionally, obtaining the vehicle power demand information according to the vehicle control information includes: According to the vehicle control information, the engine speed, the real-time vehicle speed and the vehicle control pedal data are obtained; Determining a basic driving state according to the engine speed and the real-time vehicle speed; determining a driving intention based on the vehicle control pedal data; The vehicle power demand information is obtained according to the basic driving state and driving intention.

[0009] Optionally, determining the driving intention according to the vehicle control pedal data includes: If the brake pedal opening is greater than the brake pedal deceleration threshold, it is determined that the driver has a deceleration intention at the current moment; If the power pedal opening is less than the accelerator pedal acceleration threshold, and the vehicle's real-time acceleration is less than the preset acceleration threshold, it is determined that the driver has no intention to accelerate at the current moment; If the power pedal opening is greater than the accelerator pedal acceleration threshold and / or the vehicle's real-time acceleration is greater than a preset acceleration threshold, it is determined that the driver has an acceleration intention at the current moment; If the power pedal opening is greater than the accelerator pedal acceleration threshold, and the vehicle's real-time acceleration is less than the preset acceleration threshold, it is determined that the driver has an uphill intention at the current moment.

[0010] Optionally, adjusting the generator operation strategy according to the battery charging requirement information and the vehicle power requirement information includes: Determining battery charging parameters according to the battery charging requirement information; determining a driving intention according to the vehicle power demand information; determining an energy management mode according to the driving intention, the energy management mode comprising a power supply mode and a power recovery mode; The generator operation strategy is adjusted according to the battery charging parameters and the energy management mode.

[0011] Optionally, determining a battery charging parameter according to the battery charging requirement information includes: According to the battery charging demand information, the battery charging and discharging state and power range are obtained; If the power interval is an energy recovery interval, the generator is turned off until the remaining power falls within the charge-discharge cycle interval; If the power interval is a charge-discharge cycle interval, adjusting the charging power to a first power; If the power interval is an energy storage interval or a battery feeding interval, the charging power is adjusted to a second power, and the first power is less than the second power.

[0012] Optionally, if the power interval is an energy storage interval or a battery feeding interval, after adjusting the charging power to the second power, the method further includes: If the power interval is an energy retention interval and the battery is currently in a charging state, the charging voltage is adjusted to a slow charging voltage, and a floating charging mode is used for charging; If the power interval is a power reserve interval and the battery is currently in a discharging state, the charging voltage is adjusted to a standard charging voltage; If the power interval is a battery feeding interval, the charging voltage is adjusted to a fast charging voltage.

[0013] In addition, to achieve the above-mentioned purpose, the present invention also proposes a vehicle power generation system adaptive adjustment device, the vehicle power generation system adaptive adjustment device comprising: A battery management module is used to determine battery charging demand information based on real-time battery parameters; A power management module, used to obtain vehicle power demand information based on vehicle control information; The control module is used to determine the generator operation strategy according to the battery charging requirement information and the vehicle power requirement information.

[0014] In addition, to achieve the above-mentioned purpose, the present invention also proposes a vehicle power generation system adaptive adjustment device, the vehicle power generation system adaptive adjustment device comprising: a memory, a processor and a vehicle power generation system adaptive adjustment program stored in the memory and executable on the processor, the vehicle power generation system adaptive adjustment program being configured to implement the steps of the vehicle power generation system adaptive adjustment method as described above.

[0015] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, on which a vehicle power generation system adaptive adjustment program is stored. When the vehicle power generation system adaptive adjustment program is executed by a processor, the steps of the vehicle power generation system adaptive adjustment method described above are implemented.

[0016] One or more technical solutions proposed in the present application have at least the following technical effects: the present application monitors the real-time power demand and the current battery status. The power demand corresponds to the real-time pedal changes. The battery status data includes the remaining power, health status, etc., and dynamically adjusts the generator operation strategy based on this information. The system can intelligently select different power generation modes according to the battery power range and the actual driving status of the vehicle to keep the battery in a relatively mild charging and discharging condition at all times, avoiding overcharging and over-discharging, reducing battery damage, thereby extending the battery life and reducing energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 A schematic flow chart of a first embodiment of a method for adaptively adjusting a vehicle power generation system according to the present invention; Figure 2 A diagram of the power interval division of the vehicle power generation system adaptive adjustment method of the present invention; Figure 3 A charging mode mapping diagram of the vehicle power generation system adaptive adjustment method of the present invention; Figure 4 A schematic flow chart of a second embodiment of a method for adaptively adjusting a vehicle power generation system according to the present invention; Figure 5 It is a structural block diagram of a first embodiment of the vehicle power generation system adaptive adjustment device of the present invention; Figure 6 It is a structural schematic diagram of a vehicle power generation system adaptive adjustment device in a hardware operating environment involved in an embodiment of the present invention.

[0020] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0022] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0023] The main solution of the embodiment of the present application is: determine the battery charging demand information according to the real-time battery parameters; obtain the vehicle power demand information according to the vehicle control information; and adjust the generator operation strategy according to the battery charging demand information and the vehicle power demand information.

[0024] Since the battery of new energy vehicles is a core component, its performance directly affects the vehicle's endurance, safety and service life. However, the charging and discharging process of large-capacity batteries is complex and is affected by many factors, including driving habits, ambient temperature, battery aging, etc. In order to maximize battery performance and life, it is necessary to accurately control the battery's charging and discharging strategy while ensuring the vehicle's power requirements. This requires that the power generation system of such hybrid vehicles can intelligently and dynamically adjust the power supply strategy according to the battery status and driving conditions, so that the battery is always maintained in a mild charging and discharging condition to achieve optimal energy distribution and battery health management.

[0025] In traditional technology, real-time monitoring of battery physical parameters, battery status estimation, online diagnosis and early warning, charge and discharge and pre-charge control balance management, thermal management and other means are usually used to estimate the battery status, and charge and discharge management is performed according to the battery status to avoid overcharging, over-discharging and overheating, protect battery cells from damage, and prevent safety accidents. However, this process is only a passive battery management strategy and cannot adjust the battery charging and discharging conditions according to real-time driving conditions and battery status.

[0026] The present application provides a solution by monitoring the real-time power demand and the current battery status. The power demand corresponds to the real-time pedal changes. The battery status data includes the remaining power, health status, etc., and the generator operation strategy is dynamically adjusted according to this information. The system can intelligently select different power generation modes according to the battery power range and the actual driving status of the vehicle to keep the battery in a relatively mild charging and discharging condition at all times, avoiding overcharging and over-discharging, reducing battery damage, thereby extending the battery life and reducing energy waste.

[0027] Based on this, an embodiment of the present invention provides a method for adaptively adjusting a vehicle power generation system, referring to Figure 1 , Figure 1 The figure is a flow chart of a first embodiment of a method for adaptively adjusting a vehicle power generation system according to the present invention.

[0028] In this embodiment, the vehicle power generation system adaptive adjustment method comprises the steps of: Step S10: Determine battery charging requirement information according to real-time battery parameters.

[0029] It should be noted that the executor of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device that can realize the above functions, etc. The following takes the vehicle power generation system adaptive adjustment device as an example to illustrate this embodiment and the following embodiments.

[0030] It should be noted that due to the physical parameter characteristics of the battery, the real-time power of the battery will affect the service life of the battery to a certain extent. This process involves changes in the chemical substances inside the battery and the attenuation of the battery performance. If the battery is left stationary for a long time in a high SOC state, it will accelerate aging, especially in a fully charged state. Even if it is left stationary, it will cause certain damage to the battery. After many studies, it is shown that the most suitable power range of the battery is maintained in the range of 60%~85%. In this range, the battery charging and discharging efficiency is high, and the internal resistance of the battery formed is small, and the loss in the energy transmission process is small. Therefore, in a car with hybrid characteristics, the power management of the battery needs to ensure that the power is maintained in this range as much as possible. On the other hand, the charging and discharging conditions of the battery itself will also affect the service life of the battery. For example, in some fast charging scenarios, high-current and high-power charging will aggravate the heat generation of the battery itself and the aging of the internal materials. Similarly, the high-power discharge process will also accelerate the capacity attenuation of the battery, thereby shortening the cycle life of the battery. Therefore, the battery management strategy of the present invention is to try to keep the battery in a relatively mild power range and relatively mild charging and discharging conditions, so as to achieve the purpose of extending the battery life.

[0031] It is understandable that due to the characteristics of hybrid vehicles, especially plug-in hybrid vehicles and extended-range vehicles, they are equipped with a fuel-powered generation system that can take into account both power output and battery charging. The coordination of these two power sources can realize the above-mentioned battery management strategy. On the one hand, when the battery power is insufficient or excessive, the output power of the fuel engine can be adjusted accordingly so that the battery power can be restored to the target range as much as possible. On the other hand, the fuel engine can meet the demand for high-power power output to a certain extent, thereby reducing the high-power discharge demand of the battery in some scenarios and reducing the instantaneous load of the battery. Therefore, hybrid vehicles can assist the battery in maintaining a relatively mild charging and discharging condition by adjusting the working parameters of the power generation system in real time.

[0032] It should be understood that due to the driving characteristics of this type of vehicle, the battery is charged and discharged simultaneously. At this time, the real-time parameters of the battery can reflect the battery's charging needs, and the real-time instructions of the vehicle's control system can reflect the power needs. For motor-driven vehicles, the power demand is the discharge demand.

[0033] In one embodiment, determining the battery charging requirement information based on real-time battery parameters includes: obtaining the remaining power and the battery charging and discharging status at the current moment based on the real-time battery parameters; determining the power range based on the remaining power; and determining the battery charging requirement information based on the battery charging and discharging status and the power range.

[0034] It should be noted that different power ranges correspond to different charging and discharging rates, such as Figure 2 As shown, Figure 2 It is the distribution diagram of the power interval corresponding to the battery management strategy. As can be seen from the example diagram, in this embodiment, the power is divided into four intervals, namely, the energy recovery interval, the recycling interval, the power reserve space, and the power shortage interval. Among these four intervals, the power SOC in the energy recovery interval is higher. At this time, the generator should be turned off so that the battery can supply power alone to quickly consume the power and drop to the recycling interval. When the battery power falls within the recycling interval, this is the best interval for optimizing the battery life. Therefore, the subsequent power generation strategy is to keep the battery in this interval as much as possible, and in the power reserve space and the power shortage interval, the battery needs to restore the overall power. The difference is that in the power shortage interval, the charging power in this interval will be slightly increased.

[0035] It is understandable that three sets of calibration values ​​are needed to divide these four intervals. Here, a preferred embodiment is given, and the calibration values ​​are set to 90%, 65%, and 40% respectively. The specific values ​​can be adjusted according to actual conditions.

[0036] It should be understood that the battery charging and discharging status refers to the actual charging and discharging status of the current battery when the charging power and the discharging power offset each other, that is, whether the current battery power is increasing or decreasing. This changing trend combined with the actual power range can be used to obtain the current charging demand. For example, assuming that the battery power is in the power retention range and the power has a downward trend, then the power generation power should be increased to gradually restore the battery power to the recycling range.

[0037] It should be noted that when the power is within the cycle range, you only need to pay attention to the overall charging and discharging power of the battery. In this range, you only need to avoid large current charging and discharging that may damage the battery. In other ranges, you also need to consider restoring the power to the cycle range.

[0038] Step S20: Obtain vehicle power demand information according to vehicle control information.

[0039] It should be noted that the discharge of the battery is mainly used to drive the vehicle, and the power demand of the vehicle will continue to change during driving, and the driver will also change the power demand in real time according to his own needs. Therefore, the actual vehicle power demand includes both the power demand required for the vehicle to maintain the current state of motion and the power demand of the driver in the next stage reflected in the control instructions. The vehicle control information covers data on driver operation, vehicle status, environmental road conditions, safety and stability, network management, powertrain system, etc., which is used to monitor and manage the vehicle's driving performance and safety in real time. The power demand of these two parts can be calculated separately according to the vehicle control information.

[0040] It is understandable that the power demand required for a vehicle to maintain its current state of motion is generally related to the vehicle's current speed, mass, and road conditions. The higher the speed, the greater the power usually required to overcome air resistance and other resistances. The greater the mass, the greater the force required to accelerate and maintain motion. The slope of the road, the road material, and the wetness of the road will affect the vehicle's power demand. For example, going uphill requires more power, and wet roads will increase rolling resistance. Other external factors such as wind speed and direction, temperature, humidity, etc. will also affect air resistance and engine efficiency. In the specific calculation process, the two data of engine speed and real-time vehicle speed are used as reference calibration to calculate the basic driving state of the vehicle, and as the basis for calculating the change in power demand when the driver's driving state changes.

[0041] It should be understood that the driver's power demand in the next stage is mainly inferred by the changes in the vehicle's control pedals, which include the accelerator pedal (accelerator pedal), brake pedal and clutch pedal. The depth of the accelerator pedal directly reflects the driver's demand for acceleration. The deeper the pedal is pressed, the more power the driver needs to accelerate or maintain the current speed. On the other hand, the rapid change of the accelerator pedal indicates that the driver needs to accelerate or decelerate sharply, which is usually related to overtaking, emergency avoidance or rapid adjustment of speed in traffic flow. The pressure of the brake pedal indicates the degree to which the driver wants the vehicle to slow down. The heavier the brake pedal is pressed, the greater the deceleration demand. In addition, it should be emphasized that for most new energy vehicles, there is a power recovery mode, that is, when the power recovery is started, the drive system has no power demand and even returns the recovered energy to the battery in the form of charging. At this time, the power demand can be regarded as a negative value. In summary, the vehicle management system can accurately predict the driver's power demand by comprehensively analyzing the control pedal information such as the accelerator pedal depth, change rate and brake pedal pressure.

[0042] Step S30: adjusting the generator operation strategy according to the battery charging requirement information and the vehicle power requirement information.

[0043] It should be noted that, according to the power demand and charging demand obtained in the above two steps, the generator is adjusted to the most suitable working mode accordingly, and the generator in this application includes four normalized working modes.

[0044] It can be understood that each charging mode in the aforementioned steps corresponds to the charging power, and the overall power generation power should include the driving power required for the vehicle to move forward in addition to the charging power.

[0045] In one embodiment, adjusting the generator operation strategy according to the battery charging demand information and the vehicle power demand information includes: determining battery charging parameters according to the battery charging demand information; determining driving intention according to the vehicle power demand information; determining an energy management mode according to the driving intention, the energy management mode including a power supply mode and a power recovery mode; adjusting the generator operation strategy according to the battery charging parameters and the energy management mode.

[0046] It should be noted that the energy management mode includes a power supply mode, that is, the generator needs to provide additional power to meet the driving needs of the vehicle; and a power recovery mode, that is, energy is recovered during braking or deceleration.

[0047] It is understandable that the generator operation strategy is adjusted in combination with the battery charging parameters and the energy management mode. For example, if the battery needs to be charged quickly and the vehicle requires a lot of power, the generator needs to operate at a higher power; if the vehicle is performing energy recovery, the generator needs to reduce output or shut down so that the battery can store the recovered energy.

[0048] Furthermore, determining the battery charging parameters according to the battery charging demand information includes: obtaining the battery charging and discharging state and the power range according to the battery charging demand information; if the power range is an energy recovery range, shutting down the generator until the remaining power drops to the charging and discharging cycle range; if the power range is a charging and discharging cycle range, adjusting the charging power to a first power; if the power range is an energy retention range or a battery feeding range, adjusting the charging power to a second power, the first power being less than the second power.

[0049] It is understandable that, first of all, based on the battery charging demand information, the system will evaluate the current battery charging and discharging status and power range. These ranges include energy recovery range, charge and discharge cycle range, power retention range and battery feed range. When the power is in the energy recovery range, it means that the battery power is high, and the system will shut down the generator to avoid overcharging. This ensures that the battery power does not exceed the optimal working range while reducing energy waste. When the power is in the charge and discharge cycle range, the system will adjust the charging power to the first power, which is a relatively low charging rate designed to maintain the battery power at a healthy level while reducing the battery's charge and discharge pressure. When the power is in the power retention range or the battery feed range, the system will adjust the charging power to the second power, which is higher than the first power, to replenish the battery power faster and avoid deep discharge of the battery. Through this refined energy management, the vehicle can achieve optimal battery charging and energy recovery in different power ranges, thereby improving the energy efficiency of the entire vehicle and the durability of the battery.

[0050] Furthermore, if the power interval is an energy retention interval or a battery feeding interval, after adjusting the charging power to the second power, it also includes: if the power interval is an energy retention interval and the current battery is in a charging state, the charging voltage is adjusted to a slow charging voltage, and charging is performed in a floating charging mode; if the power interval is an energy retention interval and the current battery is in a discharging state, the charging voltage is adjusted to a standard charging voltage; if the power interval is a battery feeding interval, the charging voltage is adjusted to a fast charging voltage.

[0051] It is understandable that if the power interval is the energy retention interval and the battery is in a charging state, the charging voltage is adjusted to a slow charging voltage and the floating charging mode is used for charging. This strategy helps to replenish the power gently to avoid overcharging and battery damage. If the power interval is the energy retention interval and the battery is in a discharging state, the charging voltage is adjusted to a standard charging voltage. This helps to replenish the power at an appropriate rate and maintain battery performance when the battery is low on power. If the power interval is a battery feeding interval, the charging voltage is adjusted to a fast charging voltage. This strategy is suitable for situations where the battery power is extremely low and needs to be replenished quickly to avoid over-discharge and performance degradation of the battery. Through the above strategy, the operating mode and charging power of the generator can be intelligently adjusted according to the battery power interval and the charging and discharging state to achieve optimal battery maintenance and effective energy management.

[0052] In a specific embodiment, in standard mode, the generator outputs at a set rated voltage, for example, above 14V; in floating charge mode, the generator outputs at a voltage lower than 14V and higher than the battery voltage, and slowly charges the battery; in fast charge mode, the generator outputs at a voltage higher than 15V, and quickly charges the battery; in shutdown mode, the generator shuts down, and the battery supplies power to the vehicle load. Figure 3 As shown, Figure 3 It is a charging mode mapping table of the battery state and the vehicle motion state in the present invention, wherein the charging modes required for the acceleration / deceleration, constant speed / idling driving and starting process of the vehicle in different power ranges all need to be adaptively configured.

[0053] It should be understood that in all cases, since the charging power is bound to the charging mode, these charging modes will not cause overcharging or over-discharging of the battery, which can protect the safety of the battery and extend its service life.

[0054] This embodiment determines battery charging requirement information based on real-time battery parameters; obtains vehicle power requirement information based on vehicle control information; and adjusts the generator operation strategy based on the battery charging requirement information and the vehicle power requirement information.

[0055] To summarize, in this embodiment, by monitoring the real-time power demand and the current battery status, the power demand corresponds to the real-time pedal changes, and the battery status data includes the remaining power, health status, etc., and the generator operation strategy is dynamically adjusted according to this information. The system can intelligently select different power generation modes according to the battery power range and the actual driving status of the vehicle to keep the battery in a relatively mild charging and discharging condition at all times, avoiding overcharging and over-discharging, reducing battery damage, thereby extending the battery life and reducing energy waste.

[0056] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 4 , the step S20 comprises: Step S201: According to the vehicle control information, the engine speed, real-time vehicle speed and vehicle control pedal data are obtained.

[0057] It should be noted that these data are the basis for analyzing vehicle power demand and driving behavior, and provide an important data basis for subsequent energy management decisions. Among them, the vehicle control pedal data directly reflects the dynamic state of the vehicle and the driver's operating intentions.

[0058] Step S202: Determine the basic driving state according to the engine speed and the real-time vehicle speed.

[0059] It should be noted that the basic driving conditions include but are not limited to the vehicle's acceleration, deceleration, constant speed driving or idling, etc. These conditions are crucial to understanding the vehicle's power requirements. By analyzing the engine speed and vehicle speed, the vehicle's driving resistance and required power can be inferred, thereby determining the power loss caused by maintaining the current motion state.

[0060] Step S203: Determine driving intention according to the vehicle control pedal data.

[0061] In one embodiment, the driving intention is determined based on the vehicle control pedal data, including: if the brake pedal opening is greater than the brake pedal deceleration threshold, it is judged that the driver has a deceleration intention at the current moment; if the power pedal opening is less than the accelerator pedal acceleration threshold, and the vehicle's real-time acceleration is less than a preset acceleration threshold, it is judged that the driver has no acceleration intention at the current moment; if the power pedal opening is greater than the accelerator pedal acceleration threshold and / or the vehicle's real-time acceleration is greater than the preset acceleration threshold, it is judged that the driver has an acceleration intention at the current moment; if the power pedal opening is greater than the accelerator pedal acceleration threshold, and the vehicle's real-time acceleration is less than the preset acceleration threshold, it is judged that the driver has an uphill intention at the current moment.

[0062] It is understood that when the brake pedal opening exceeds the preset deceleration threshold, the system will recognize that the driver has the intention to decelerate, which means that the driver is responding to traffic conditions, preparing to stop or emergency braking, and the deceleration intention can pre-start the vehicle's power recovery mode; if the accelerator pedal opening is lower than the acceleration threshold, and the vehicle's real-time acceleration is also lower than the preset acceleration threshold, the system will determine that the driver has no intention to accelerate, and may be maintaining the current speed or slightly decelerating. When the accelerator pedal opening exceeds the acceleration threshold, or the vehicle's real-time acceleration exceeds the preset acceleration threshold, the system will determine that the driver has the intention to accelerate, which usually occurs in overtaking, fast starting or uphill driving. For example, in some cases, even if the accelerator pedal opening is large, if the vehicle's real-time acceleration is still lower than the preset acceleration threshold, this may indicate that the vehicle is going uphill and needs more power to overcome gravity. Through these judgments, the vehicle's energy management system can timely adjust the generator's working mode, optimize the battery charging and discharging strategy, and match it with the vehicle's power output to ensure that the vehicle can maintain optimal performance and efficiency under different driving intentions.

[0063] Step S204: Obtain the vehicle power demand information according to the basic driving state and driving intention.

[0064] It is understood that vehicle power demand information refers to data and parameters that describe how much power input a vehicle needs at a specific time or under specific driving conditions. This information determines how the vehicle's power system (including the engine, motor, transmission and related control systems) allocates power to meet driving needs.

[0065] This embodiment obtains the engine speed, real-time vehicle speed and vehicle control pedal data according to the vehicle control information; determines the basic driving state according to the engine speed and real-time vehicle speed; determines the driving intention according to the vehicle control pedal data; and obtains the vehicle power demand information according to the basic driving state and driving intention.

[0066] In summary, in this embodiment, by collecting vehicle control information, including engine speed, real-time vehicle speed, and vehicle control pedal data, the driver's driving status and intention are intelligently analyzed to accurately determine the vehicle's power demand. Based on the power demand information, the system can adaptively adjust the generator's operating mode to meet the vehicle's power demand and optimize the battery charging and discharging strategy. Beneficial effects include improving energy efficiency, optimizing driving experience, enhancing safety, extending battery and engine life, reducing emissions, improving the adaptability and reliability of the power system, and supporting predictive maintenance, thereby achieving a more efficient, safe, and environmentally friendly driving experience, while improving vehicle performance and economy.

[0067] This application also provides a vehicle power generation system adaptive adjustment device, please refer to Figure 5 , the vehicle power generation system adaptive adjustment device comprises: The battery management module 10 is used to determine the battery charging requirement information according to the real-time battery parameters; The power management module 20 is used to obtain vehicle power demand information according to vehicle control information; The control module 30 is used to determine the generator operation strategy according to the battery charging requirement information and the vehicle power requirement information.

[0068] In one embodiment, the battery management module 10 is further used to obtain the remaining power and the battery charging and discharging status at the current moment according to the real-time battery parameters; determine the power range according to the remaining power; and determine the battery charging demand information according to the battery charging and discharging status and the power range.

[0069] In one embodiment, the power management module 20 is also used to obtain the engine speed, real-time vehicle speed and vehicle control pedal data based on the vehicle control information; determine the basic driving state based on the engine speed and real-time vehicle speed; determine the driving intention based on the vehicle control pedal data; and obtain the vehicle power demand information based on the basic driving state and driving intention.

[0070] In one embodiment, the power management module 20 is also used to determine that the driver currently has an intention to decelerate if the brake pedal opening is greater than the brake pedal deceleration threshold; if the power pedal opening is less than the accelerator pedal acceleration threshold, and the vehicle's real-time acceleration is less than a preset acceleration threshold, then it is determined that the driver currently has no intention to accelerate; if the power pedal opening is greater than the accelerator pedal acceleration threshold and / or the vehicle's real-time acceleration is greater than the preset acceleration threshold, then it is determined that the driver currently has an intention to accelerate; if the power pedal opening is greater than the accelerator pedal acceleration threshold, and the vehicle's real-time acceleration is less than the preset acceleration threshold, then it is determined that the driver currently has an intention to go uphill.

[0071] In one embodiment, the control module 30 is further used to determine battery charging parameters based on the battery charging demand information; determine driving intention based on the vehicle power demand information; determine an energy management mode based on the driving intention, the energy management mode including a power supply mode and a power recovery mode; and adjust the generator operation strategy based on the battery charging parameters and the energy management mode.

[0072] In one embodiment, the control module 30 is further used to obtain the battery charging and discharging status and power range according to the battery charging demand information; if the power range is an energy recovery range, the generator is turned off until the remaining power drops to the charging and discharging cycle range; if the power range is a charging and discharging cycle range, the charging power is adjusted to a first power; if the power range is an energy retention range or a battery feeding range, the charging power is adjusted to a second power, and the first power is less than the second power.

[0073] In one embodiment, the control module 30 is also used to adjust the charging voltage to a slow charging voltage and adopt a floating charging mode for charging if the power interval is a power retention interval and the battery is currently in a charging state; if the power interval is a power retention interval and the battery is currently in a discharging state, adjust the charging voltage to a standard charging voltage; if the power interval is a battery feeding interval, adjust the charging voltage to a fast charging voltage.

[0074] This embodiment monitors the real-time power demand and the current battery status. The power demand corresponds to the real-time pedal change. The battery status data includes the remaining power, health status, etc., and dynamically adjusts the generator operation strategy based on this information. The system can intelligently select different power generation modes according to the battery power range and the actual driving status of the vehicle to keep the battery in a relatively mild charging and discharging condition at all times, avoiding overcharging and over-discharging, reducing battery damage, thereby extending the battery life and reducing energy waste.

[0075] The vehicle power generation system adaptive adjustment device provided by the present application adopts the vehicle power generation system adaptive adjustment method in the above embodiment, which can solve the technical problem of how to design a method that can ensure that the battery of the new energy vehicle maintains a mild charging and discharging condition in various driving scenarios to extend its service life and maintain stable performance. Compared with the prior art, the beneficial effects of the vehicle power generation system adaptive adjustment device provided by the present application are the same as the beneficial effects of the vehicle power generation system adaptive adjustment method provided by the above embodiment, and the other technical features in the vehicle power generation system adaptive adjustment device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0076] The present application provides a vehicle power generation system adaptive adjustment device, the vehicle power generation system adaptive adjustment device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the vehicle power generation system adaptive adjustment method in the above-mentioned embodiment one.

[0077] Reference below Figure 6 , which shows a schematic diagram of the structure of a vehicle power generation system adaptive adjustment device suitable for implementing the embodiment of the present application. The vehicle power generation system adaptive adjustment device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 6 The vehicle power generation system adaptive adjustment device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0078] like Figure 6As shown, the vehicle power generation system adaptive adjustment device may include a processing device 1001 (such as a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the vehicle power generation system adaptive adjustment device are also stored. The processing device 1001, ROM1002 and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the vehicle power system adaptive adjustment device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a vehicle power system adaptive adjustment device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or have alternatively.

[0079] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0080] The vehicle power generation system adaptive adjustment device provided by the present application adopts the vehicle power generation system adaptive adjustment method in the above embodiment, which can solve the technical problem of how to design a method that can ensure that the battery of a new energy vehicle maintains a mild charging and discharging condition in various driving scenarios to extend its service life and maintain stable performance. Compared with the prior art, the beneficial effects of the vehicle power generation system adaptive adjustment device provided by the present application are the same as the beneficial effects of the vehicle power generation system adaptive adjustment method provided by the above embodiment, and the other technical features in the vehicle power generation system adaptive adjustment device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0081] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0082] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0083] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, the computer-readable program instructions being used to execute the vehicle power generation system adaptive adjustment method in the above-mentioned embodiment.

[0084] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM: Random Access Memory), a read-only memory (ROM: Read Only Memory), an erasable programmable read-only memory (EPROM: Erasable Programmable Read Only Memory or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM: CD-Read Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency: Radio Frequency), etc., or any suitable combination of the above.

[0085] The computer-readable storage medium may be included in the vehicle power generation system adaptive adjustment device; or may exist independently without being assembled into the vehicle power generation system adaptive adjustment device.

[0086] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the vehicle power generation system adaptive adjustment device, the vehicle power generation system adaptive adjustment device is enabled to perform vehicle power generation system adaptive adjustment.

[0087] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0088] The flow chart and block diagram in the accompanying drawings illustrate the architecture, function and operation of the implementation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0089] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0090] The readable storage medium provided in this application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned vehicle power generation system adaptive adjustment method, and can solve the technical problem of how to design a method that can ensure that the battery of a new energy vehicle maintains a mild charging and discharging condition in various driving scenarios to extend its service life and maintain stable performance. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the vehicle power generation system adaptive adjustment method provided in the above-mentioned embodiment, and will not be repeated here.

[0091] The computer program product provided by the present application can solve the technical problem of adaptive adjustment of vehicle power generation system. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the adaptive adjustment method of vehicle power generation system provided by the above embodiment, which will not be described in detail here.

[0092] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for adaptively adjusting a vehicle power generation system, characterized in that: The vehicle power generation system adaptive adjustment method comprises: Determine battery charging requirement information based on real-time battery parameters; According to the vehicle control information, the vehicle power demand information is obtained; The generator operation strategy is adjusted according to the battery charging demand information and the vehicle power demand information.

2. The vehicle power generation system adaptive adjustment method according to claim 1, characterized in that: Determining battery charging requirement information according to real-time battery parameters includes: According to the real-time battery parameters, the remaining power and the battery charging and discharging status at the current moment are obtained; Determining a power range according to the remaining power; The battery charging requirement information is determined according to the battery charging and discharging state and the power range.

3. The vehicle power generation system adaptive adjustment method according to claim 1, characterized in that: The obtaining of vehicle power demand information according to the vehicle control information includes: According to the vehicle control information, the engine speed, the real-time vehicle speed and the vehicle control pedal data are obtained; Determining a basic driving state according to the engine speed and the real-time vehicle speed; determining a driving intention based on the vehicle control pedal data; The vehicle power demand information is obtained according to the basic driving state and driving intention.

4. The vehicle power generation system adaptive adjustment method according to claim 3, characterized in that: The determining the driving intention according to the vehicle control pedal data includes: If the brake pedal opening is greater than the brake pedal deceleration threshold, it is determined that the driver has a deceleration intention at the current moment; If the power pedal opening is less than the accelerator pedal acceleration threshold, and the vehicle's real-time acceleration is less than the preset acceleration threshold, it is determined that the driver has no intention to accelerate at the current moment; If the power pedal opening is greater than the accelerator pedal acceleration threshold and / or the vehicle's real-time acceleration is greater than a preset acceleration threshold, it is determined that the driver has an acceleration intention at the current moment; If the power pedal opening is greater than the accelerator pedal acceleration threshold, and the vehicle's real-time acceleration is less than the preset acceleration threshold, it is determined that the driver has an uphill intention at the current moment.

5. The vehicle power generation system adaptive adjustment method according to claim 1, characterized in that: The adjusting the generator operation strategy according to the battery charging requirement information and the vehicle power requirement information includes: Determining battery charging parameters according to the battery charging requirement information; determining a driving intention according to the vehicle power demand information; determining an energy management mode according to the driving intention, the energy management mode comprising a power supply mode and a power recovery mode; The generator operation strategy is adjusted according to the battery charging parameters and the energy management mode.

6. The vehicle power generation system adaptive adjustment method according to claim 5, characterized in that: The determining the battery charging parameters according to the battery charging requirement information includes: According to the battery charging demand information, the battery charging and discharging state and power range are obtained; If the power interval is an energy recovery interval, the generator is turned off until the remaining power falls within the charge-discharge cycle interval; If the power interval is a charge-discharge cycle interval, adjusting the charging power to a first power; If the power interval is an energy storage interval or a battery feeding interval, the charging power is adjusted to a second power, and the first power is less than the second power.

7. The vehicle power generation system adaptive adjustment method according to claim 6, characterized in that: If the power interval is an energy storage interval or a battery feeding interval, after the charging power is adjusted to the second power, the method further includes: If the power interval is an energy retention interval and the battery is currently in a charging state, the charging voltage is adjusted to a slow charging voltage, and a floating charging mode is used for charging; If the power interval is a power reserve interval and the battery is currently in a discharging state, the charging voltage is adjusted to a standard charging voltage; If the power interval is a battery feeding interval, the charging voltage is adjusted to a fast charging voltage.

8. An adaptive adjustment device for a vehicle power generation system, characterized in that: The vehicle power generation system adaptive adjustment device comprises: A battery management module is used to determine battery charging demand information based on real-time battery parameters; A power management module, used to obtain vehicle power demand information based on vehicle control information; The control module is used to determine the generator operation strategy according to the battery charging requirement information and the vehicle power requirement information.

9. A vehicle power generation system adaptive adjustment device, characterized in that: The vehicle power generation system adaptive adjustment device includes: a memory, a processor, and a vehicle power generation system adaptive adjustment program stored in the memory and executable on the processor, wherein the vehicle power generation system adaptive adjustment program is configured to implement the steps of the vehicle power generation system adaptive adjustment method as described in any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium stores a vehicle power generation system adaptive adjustment program, and when the vehicle power generation system adaptive adjustment program is executed by the processor, the steps of the vehicle power generation system adaptive adjustment method according to any one of claims 1 to 7 are implemented.

Images