Vehicle power generation system adaptive adjustment method, device, equipment and storage medium

Abstract

The present application relates to the technical field of vehicles, and particularly relates to a vehicle power generation system adaptive adjustment method, device, equipment and storage medium, the present application monitors real-time power demand and current battery state, the power demand corresponds to real-time pedal change, the battery state data includes residual capacity, health state and the like, and dynamically adjusts the operation strategy of the generator according to the information, the system can intelligently select different power generation modes according to the battery capacity interval and the actual driving state of the vehicle, so as to keep the battery always in a relatively mild charging and discharging working condition, avoid overcharging and overdischarging, reduce battery damage, thereby prolong the service life of the battery, and reduce energy waste.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a vehicle power generation system adaptive adjustment method, device, equipment and storage medium. BACKGROUND

[0002] With the intensification of global energy crisis and the increasingly serious environmental pollution problem, energy transformation has become the focus of global attention. As one of the main energy consumption and pollution sources, traditional fuel vehicles have an impact on the environment and energy, prompting governments and automobile manufacturers around the world 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 automobile industry, as they balance the range of fuel vehicles and the low emission characteristics of pure electric vehicles.

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

[0004] Therefore, how to design a new energy vehicle battery that can maintain a moderate charging and discharging condition under various driving scenarios to prolong its service life and maintain stable performance has become a problem to be solved in the field. SUMMARY

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

[0006] To achieve the above-mentioned purpose, the present application provides a vehicle power generation system adaptive adjustment method, which comprises the following steps:

[0007] According to the real-time battery parameters, determine the battery charging demand information;

[0008] According to the vehicle control information, obtain the vehicle power demand information;

[0009] According to the battery charging demand information and vehicle power demand information, adjust the generator operation strategy.

[0010] Optionally, the determining the battery charging demand information according to the real-time battery parameter comprises:

[0011] obtaining the residual power and the battery charging / discharging state at the current time according to the real-time battery parameter;

[0012] determining the power interval according to the residual power;

[0013] determining the battery charging demand information according to the battery charging / discharging state and the power interval.

[0014] Optionally, the obtaining the vehicle power demand information according to the vehicle control information comprises:

[0015] obtaining the engine speed, the real-time vehicle speed and the vehicle control pedal data according to the vehicle control information;

[0016] determining the basic driving state according to the engine speed and the real-time vehicle speed;

[0017] determining the driving intention according to the vehicle control pedal data;

[0018] obtaining the vehicle power demand information according to the basic driving state and the driving intention.

[0019] Optionally, the determining the driving intention according to the vehicle control pedal data comprises:

[0020] if the brake pedal opening degree is greater than the brake pedal deceleration threshold, it is determined that the driver has deceleration intention at the current time;

[0021] if the power pedal opening degree is less than the accelerator pedal acceleration threshold and the real-time vehicle acceleration is less than the preset acceleration threshold, it is determined that the driver has no acceleration intention at the current time;

[0022] if the power pedal opening degree is greater than the accelerator pedal acceleration threshold and / or the real-time vehicle acceleration is greater than the preset acceleration threshold, it is determined that the driver has acceleration intention at the current time;

[0023] if the power pedal opening degree is greater than the accelerator pedal acceleration threshold and the real-time vehicle acceleration is less than the preset acceleration threshold, it is determined that the driver has uphill intention at the current time.

[0024] Optionally, the adjusting the generator operation strategy according to the battery charging demand information and the vehicle power demand information comprises:

[0025] determining the battery charging parameter according to the battery charging demand information;

[0026] determining the driving intention according to the vehicle power demand information;

[0027] determining an energy management mode according to the driving intention, the energy management mode comprising a power supply mode and a power recovery mode;

[0028] adjusting a generator operation strategy according to the battery charging parameter and the energy management mode.

[0029] Optionally, the determining the battery charging parameter according to the battery charging demand information comprises:

[0030] obtaining a battery charging and discharging state and an electric quantity interval according to the battery charging demand information;

[0031] if the electric quantity interval is an energy recovery interval, then shutting down the generator until the remaining electric quantity decreases to within a charging and discharging cycle interval;

[0032] if the electric quantity interval is the charging and discharging cycle interval, then adjusting the charging power to a first power;

[0033] if the electric quantity interval is an electric energy reservation interval or a battery feeding interval, then adjusting the charging power to a second power, the first power being less than the second power.

[0034] Optionally, the adjusting the charging power to the second power if the electric quantity interval is the electric energy reservation interval or the battery feeding interval further comprises:

[0035] if the electric quantity interval is the electric energy reservation interval and the current battery is in a charging state, then adjusting the charging voltage to a slow charging charging voltage and charging in a floating charging mode;

[0036] if the electric quantity interval is the electric energy reservation interval and the current battery is in a discharging state, then adjusting the charging voltage to a standard charging voltage;

[0037] if the electric quantity interval is the battery feeding interval, then adjusting the charging voltage to a fast charging charging voltage.

[0038] In addition, to achieve the above object, the application further provides a vehicle generator system self-adapting adjustment device, which comprises:

[0039] a battery management module, configured to determine battery charging demand information according to real-time battery parameters;

[0040] a power management module, configured to obtain vehicle power demand information according to vehicle control information;

[0041] a control module, configured to determine a generator operation strategy according to the battery charging demand information and the vehicle power demand information.

[0042] In addition, to achieve the above object, the application further provides a vehicle power generation system adaptive adjustment device, which comprises a memory, a processor and a vehicle power generation system adaptive adjustment program stored in the memory and executable on the processor, and 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 above.

[0043] In addition, to achieve the above object, the application further provides a storage medium, which stores a vehicle power generation system adaptive adjustment program, and the vehicle power generation system adaptive adjustment program implements the steps of the vehicle power generation system adaptive adjustment method as described above when executed by a processor.

[0044] The one or more technical solutions provided by the application have at least the following technical effects: the application monitors the real-time power demand and the current battery state, the power demand corresponds to the real-time pedal change, the battery state data includes the remaining power, the health state and the like, and dynamically adjusts the operation strategy of the generator according to these information, the system can intelligently select different power generation modes according to the battery power interval and the actual driving state of the vehicle, so as to keep the battery always in a relatively mild charging and discharging working condition, avoid overcharging and overdischarging, reduce battery damage, thereby prolong the service life of the battery and reduce energy waste. BRIEF DESCRIPTION OF DRAWINGS

[0045] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the application and serve to explain the principles of the application together with the specification.

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the application or in the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0047] Figure 1 Flowchart of the first embodiment of the vehicle power generation system adaptive adjustment method of the application;

[0048] Figure 2 Power interval division diagram of the vehicle power generation system adaptive adjustment method of the application;

[0049] Figure 3 Charging mode mapping diagram of the vehicle power generation system adaptive adjustment method of the application;

[0050] Figure 4 Flowchart of the second embodiment of the vehicle power generation system adaptive adjustment method of the application;

[0051] Figure 5 The figure is a structural block diagram of the first embodiment of the adaptive adjustment device for the vehicle power generation system of the application.

[0052] Figure 6 The figure is a structural diagram of the adaptive adjustment device for the vehicle power generation system of the application.

[0053] The realization of the object of the application, functional features and advantages will be further explained in combination with the embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0054] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the application and not to limit the application.

[0055] In order to better understand the technical solutions of the application, the following will be described in detail in combination with the drawings and specific embodiments.

[0056] The main solution of the embodiment of the application is: determining battery charging demand information according to real-time battery parameters; obtaining vehicle power demand information according to vehicle control information; and adjusting the generator operation strategy according to the battery charging demand information and the vehicle power demand information.

[0057] Since the battery of a new energy vehicle is a core component, its performance directly affects the endurance, safety and service life of the vehicle. However, the charging and discharging process of a large-capacity battery is complex and is affected by various factors, including driving habits, environmental temperature, battery aging, etc. In order to maximize battery performance and life, it is necessary to accurately control the charging and discharging strategy of the battery while ensuring the power demand of the vehicle. This requires that the power generation system of such a hybrid vehicle can intelligently dynamically adjust the power supply strategy according to the battery state and driving conditions, so that the battery is always maintained in a moderate charging and discharging working condition to achieve optimal energy distribution and battery health management.

[0058] In the conventional technology, the battery state is estimated by means of real-time monitoring of battery physical parameters, battery state estimation, online diagnosis and early warning, balanced management of charging and discharging and pre-charging control, thermal management, etc. The charging and discharging management is performed according to the battery state to avoid overcharging, overdischarging, overheating, protect the battery monomer from damage and prevent safety accidents. However, this process is only a passive battery management strategy and cannot adjust the charging and discharging working condition of the battery according to the real-time driving conditions and battery state.

[0059] The application provides a solution, by monitoring the real-time power demand corresponding to the real-time pedal change and the current battery state data including the remaining power, the health state and the like, and dynamically adjusting the operation strategy of the generator according to the information, the system can intelligently select different power generation modes according to the battery power interval and the actual driving state of the vehicle, so as to keep the battery in a relatively mild charging and discharging working condition all the time, avoid overcharging and overdischarging, reduce the damage of the battery, thereby prolong the service life of the battery and reduce the energy waste.

[0060] Based on this, the embodiment of the application provides a vehicle power generation system adaptive adjustment method, referring to Figure 1 , Figure 1 The figure is a flowchart of the first embodiment of the vehicle power generation system adaptive adjustment method.

[0061] In this embodiment, the vehicle power generation system adaptive adjustment method comprises the following steps:

[0062] Step S10: determining the battery charging demand information according to the real-time battery parameters.

[0063] It should be noted that the execution subject of the 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 and the like, or an electronic device capable of realizing the above functions, and the following embodiments will be described taking the vehicle power generation system adaptive adjustment device as an example.

[0064] 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 some extent, and this process involves the change of the chemical substances in the battery and the attenuation of the battery performance. The battery will be aged at a high SOC state for a long time, especially at a full power state, even if it is static, it will cause certain damage to the battery. After many studies, it is found that the most suitable power interval of the battery is maintained in the interval of 60% to 85%, in this interval, the charging and discharging efficiency of the battery is high, and the battery internal resistance is small, and the energy transmission process has small loss, therefore, in the automobile with the hybrid power characteristics, the power management of the battery needs to ensure that the power is maintained in this interval as much as possible, on the other hand, the charging and discharging working condition of the battery itself will also affect the service life of the battery, for example, in the partial fast charging scene, the large current high power charging will accelerate the heat generation and internal material aging of the battery, and the large power discharging 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 application is to maintain the battery in a relatively mild power interval and a relatively mild charging and discharging working condition, so as to prolong the service life of the battery.

[0065] It can be understood that, due to the characteristics of hybrid vehicles, especially plug-in hybrid vehicles and extended-range vehicles, they are equipped with a fuel power generation system, which can simultaneously consider power output and battery charging, and the cooperation of the two powers can realize the above 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 interval as much as possible, on the other hand, the fuel engine can meet the demand of high-power output to a certain extent, thereby reducing the demand of high-power discharge of the battery in some scenarios, and reducing the instantaneous load of the battery. Therefore, the hybrid vehicle can adjust the working parameters of the power generation system in real time to assist the battery to maintain in a relatively mild charging and discharging working condition.

[0066] It should be understood that, due to the driving characteristics of such vehicles, the battery has a situation of charging and discharging at the same time. At this time, the real-time parameters of the battery can reflect the charging demand of the battery, and the real-time instructions of the control system of the vehicle can reflect the power demand. For the vehicle driven by the motor, the power demand is the discharge demand.

[0067] In an embodiment, the battery charging demand information is determined according to the real-time battery parameters, including: obtaining the remaining power and the battery charging and discharging state at the current time according to the real-time battery parameters; determining the power interval according to the remaining power; determining the battery charging demand information according to the battery charging and discharging state and the power interval.

[0068] It should be noted that different power intervals correspond to different charging and discharging rates, as shown in Figure 2 , and Figure 2 is a power interval distribution diagram corresponding to the battery management strategy. As can be seen from the example diagram, the power in this embodiment is divided into four intervals, namely, energy recovery interval, cyclic use interval, electric energy storage space, and electric energy insufficient interval. In the four intervals, the power SOC in the energy recovery interval is high, at this time the generator should be turned off so that the battery alone supplies power to quickly consume the power to fall into the cyclic use interval. When the battery power falls within the cyclic use interval, this is the best interval for optimizing the service life of the battery, so the subsequent power generation strategy is to try to keep the battery in this interval, and in the electric energy storage space and the electric energy insufficient interval, the battery needs to be restored to the overall power. The difference is that the charging power in the electric energy insufficient interval is slightly increased.

[0069] It can be understood that three sets of calibration values are needed to divide the four intervals. Here is an preferred embodiment, the calibration values are set to 90%, 65%, and 40% respectively. The specific values can be adjusted according to the actual situation.

[0070] It should be understood that the battery charge and discharge state refers to the actual charge and discharge state of the current battery when the charging power and the discharging power are offset, that is, whether the current battery power is increasing or decreasing, and this trend combined with the actual power interval can obtain the current charging demand, for example, assuming that the battery power is in the power retention interval and the power has a downward trend, at this time the power generation power should be increased to gradually restore the battery power to the cycle use interval.

[0071] It should be noted that in the cycle use interval, only the overall charge and discharge power of the battery needs to be concerned, and in this interval, only the damage to the battery by large current charge and discharge needs to be avoided, and in other intervals, the power needs to be restored to the cycle use interval.

[0072] Step S20: obtaining vehicle power demand information according to vehicle control information.

[0073] It should be noted that the discharge of the battery is mainly supplied to the vehicle driving, and the power demand of the vehicle will change constantly 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 the power demand required for the vehicle to maintain the current motion state, and also includes the power demand of the driver in the next stage reflected in the control instruction, and the vehicle control information covers the data of the driver operation, vehicle state, environment road condition, safety stability, network management and power transmission system, etc., for real-time monitoring and management of the driving performance and safety of the vehicle, according to the vehicle control information, the power demand of the two parts can be calculated respectively.

[0074] It can be understood that the power demand required for the vehicle to maintain the current motion state is generally related to the current speed, mass and road conditions of the vehicle, the higher the speed, the more power is generally required to overcome air resistance and other resistance, the greater the mass, the greater the force required for acceleration and motion maintenance, and the slope, road surface material and wetness of the road will affect the power demand of the vehicle, for example, more power is required for uphill, and wet road surface will increase the rolling resistance, and other external factors such as wind speed and direction, temperature, humidity, etc. will also affect the air resistance and the working efficiency of the engine. In the specific calculation process, the 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 of power demand when the driver changes the driving state.

[0075] It should be understood that the driver's power demand in the next stage is mainly inferred through the changes of the control pedals of the vehicle, including the accelerator pedal (acceleration pedal), the brake pedal and the clutch pedal. The depth of the accelerator pedal directly reflects the driver's demand for acceleration. The deeper the pedal is stepped, 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 quickly, 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 decelerate. The heavier the brake pedal is stepped, the greater the deceleration demand. In addition, it needs to 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 or 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 depth, change rate of the accelerator pedal and the pressure of the brake pedal.

[0076] Step S30: adjusting the generator operation strategy according to the battery charging demand information and the vehicle power demand information.

[0077] It should be noted that the power demand and charging demand obtained in the foregoing two steps correspond to the adjustment of the generator to the most suitable working mode, and the generator in the present application includes four normalized working modes.

[0078] It can be understood that each charging mode in the foregoing steps corresponds to a charging power, and the overall power generation power should include the driving power to meet the vehicle forward movement in addition to the charging power.

[0079] In an embodiment, the adjusting the generator operation strategy according to the battery charging demand information and the vehicle power demand information comprises: determining a battery charging parameter according to the battery charging demand 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; and adjusting the generator operation strategy according to the battery charging parameter and the energy management mode.

[0080] 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 demand of the vehicle, and a power recovery mode, that is, to recover energy during braking or deceleration.

[0081] It can be understood that the operation strategy of the generator is adjusted in combination with the battery charging parameters and the energy management mode. For example, if the battery needs to be quickly charged and the vehicle requires a large amount of power, the generator needs to operate at a high power; if the vehicle is performing energy recovery, the generator needs to reduce the output or be turned off so that the battery can store the recovered energy.

[0082] Further, the battery charging parameters are determined according to the battery charging demand information, including: obtaining the battery charging and discharging state and the power interval according to the battery charging demand information; if the power interval is an energy recovery interval, the generator is turned off until the remaining power decreases to the charging and discharging cycle interval; if the power interval is a charging and discharging cycle interval, the charging power is adjusted to a first power; if the power interval is a power retention 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.

[0083] It can be understood that first, according to the battery charging demand information, the system will evaluate the current battery charging and discharging state and the power interval. These intervals include the energy recovery interval, the charging and discharging cycle interval, the power retention interval and the battery feeding interval. When the power is in the energy recovery interval, it means that the battery power is high, and the system will turn off the generator to avoid overcharging. This can ensure that the battery power does not exceed the optimal working interval, while reducing energy waste. When the power is in the charging and discharging cycle interval, the system will adjust the charging power to a first power, which is a relatively low charging rate, aiming to maintain the battery power at a healthy level while reducing the charging and discharging stress of the battery. When the power is in the power retention interval or the battery feeding interval, the system will adjust the charging power to a second power, which is higher than the first power, to quickly replenish the battery power 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 intervals, thereby improving the energy efficiency of the vehicle and the durability of the battery.

[0084] Further, after the charging power is adjusted to the second power if the power interval is the power retention interval or the battery feeding interval, it further includes: if the power interval is the power retention interval and the current battery is in the charging state, the charging voltage is adjusted to the slow charging charging voltage, and the floating charging mode is adopted for charging; if the power interval is the power retention interval and the current battery is in the discharging state, the charging voltage is adjusted to the standard charging voltage; if the power interval is the battery feeding interval, the charging voltage is adjusted to the fast charging charging voltage.

[0085] It can be understood that if the power interval is the power retention interval and the battery is in the charging state, the charging voltage is adjusted to the slow charging charging voltage, and the floating charging mode is adopted for charging. This strategy helps to gently supplement the power to avoid overcharging and battery damage. If the power interval is the power retention interval and the battery is in the discharging state, the charging voltage is adjusted to the standard charging voltage. This helps to supplement the power at an appropriate rate when the battery power is insufficient to maintain the battery performance. If the power interval is the battery feeding interval, the charging voltage is adjusted to the fast charging charging voltage. This strategy is suitable for the case where the battery power is very low and needs to be quickly supplemented to avoid battery over-discharge and performance degradation. Through the above strategy, the generator operating mode and charging power can be intelligently adjusted according to the battery power interval and charging state, to achieve the best maintenance of the battery and effective management of energy.

[0086] In a specific embodiment, the standard mode: the generator outputs at a set rated voltage, for example, 14V or more; the floating mode: the generator outputs at a voltage lower than 14V and higher than the battery voltage to slowly charge the battery; the fast charging mode: the generator charges the battery at a voltage higher than 15V; the off mode: the generator is off and the battery supplies power to the vehicle load. As shown in Figure 3 Figure 3 is a charging mode mapping table of the battery state and the vehicle motion state in the present application, wherein the charging modes required by the acceleration, deceleration, constant speed / idling driving and starting process of the vehicle in different power intervals need to be adaptively configured.

[0087] It should be understood that in all cases, since the charging power is bound to the charging mode, these charging modes will not cause the battery to be overcharged or over-discharged, which can protect the safety of the battery and prolong its service life.

[0088] The embodiment determines battery charging demand information according to real-time battery parameters; obtains vehicle power demand information according to vehicle control information; and adjusts the generator operating strategy according to the battery charging demand information and the vehicle power demand information.

[0089] In summary, in the embodiment, the real-time power demand and the current battery state are monitored, the power demand corresponds to the real-time pedal change, the battery state data includes the remaining power, the health state, etc., and the generator operating strategy is dynamically adjusted according to these information. The system can intelligently select different power generation modes according to the battery power interval and the actual driving state of the vehicle to keep the battery always in a relatively mild charging and discharging working condition, avoid overcharging and over-discharging, reduce battery damage, thereby prolong the service life of the battery and reduce energy waste.

[0090] ​Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as the above-mentioned embodiment one can refer to the above introduction, and the subsequent will not be described in detail. On this basis, please refer to Figure 4 , the step S20 comprises:

[0091] Step S201: obtaining engine speed, real-time vehicle speed and vehicle control pedal data according to the vehicle control information.

[0092] It should be noted that these data are the basis for vehicle power demand and driving behavior analysis, and provide important data basis for subsequent energy management decision, wherein the vehicle control pedal data directly reflects the dynamic state of the vehicle and the operation intention of the driver.

[0093] Step S202: determining the basic driving state according to the engine speed and real-time vehicle speed.

[0094] It should be noted that the basic driving state includes but is not limited to acceleration, deceleration, uniform speed driving or idling of the vehicle, and these states are crucial for understanding the power demand of the vehicle. By analyzing the engine speed and vehicle speed, the driving resistance and required power of the vehicle can be inferred, so as to determine the power loss caused by maintaining the current motion state.

[0095] Step S203: determining the driving intention according to the vehicle control pedal data.

[0096] In an embodiment, the step of determining the driving intention according to the vehicle control pedal data comprises: if the brake pedal opening degree is greater than the brake pedal deceleration threshold, it is judged that the driver has deceleration intention at the current time; if the power pedal opening degree is less than the accelerator pedal acceleration threshold, and the real-time acceleration of the vehicle is less than the preset acceleration threshold, it is judged that the driver has no acceleration intention at the current time; if the power pedal opening degree is greater than the accelerator pedal acceleration threshold and / or the real-time acceleration of the vehicle is greater than the preset acceleration threshold, it is judged that the driver has acceleration intention at the current time; if the power pedal opening degree is greater than the accelerator pedal acceleration threshold, and the real-time acceleration of the vehicle is less than the preset acceleration threshold, it is judged that the driver has uphill intention at the current time.

[0097] It can be understood that when the brake pedal opening exceeds the preset deceleration threshold, the system recognizes the driver's intention to decelerate, which means that the driver is responding to traffic conditions, preparing to stop or making an emergency brake, and the deceleration intention can pre-start the vehicle's power recovery mode; if the accelerator pedal opening is below the acceleration threshold, and the real-time acceleration of the vehicle is also below the preset acceleration threshold, the system will judge 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 real-time acceleration of the vehicle exceeds the preset acceleration threshold, the system will judge that the driver has the intention to accelerate, which usually occurs in overtaking, rapid starting or uphill driving, etc. For example, in some cases, even if the accelerator pedal opening is large, if the real-time acceleration of the vehicle is still below the preset acceleration threshold, it may indicate that the vehicle is uphill and needs more power to overcome gravity. Through these judgments, the energy management system of the vehicle can timely adjust the working mode of the generator, optimize the battery charging and discharging strategy, and match the power output of the vehicle, to ensure that the vehicle can maintain the best performance and efficiency under different driving intentions.

[0098] Step S204: obtaining the vehicle power demand information according to the basic driving state and the driving intention.

[0099] It can be understood that the vehicle power demand information refers to data and parameters that describe how much power input the vehicle needs at a specific moment or under specific driving conditions. These information determines how the power system of the vehicle (including the engine, electric motor, transmission and related control system) allocates power to meet the driving demand.

[0100] In this embodiment, the engine speed, real-time vehicle speed and vehicle control pedal data are obtained according to the vehicle control information, the basic driving state is determined according to the engine speed and real-time vehicle speed, the driving intention is determined according to the vehicle control pedal data, and the vehicle power demand information is obtained according to the basic driving state and the driving intention.

[0101] In summary, in this embodiment, the vehicle control information, including engine speed, real-time vehicle speed and vehicle control pedal data, is collected, and the driving state and intention of the driver are intelligently analyzed to accurately determine the power demand of the vehicle. Based on the power demand information, the system can adaptively adjust the working mode of the generator to meet the power demand of the vehicle and optimize the battery charging and discharging strategy. The beneficial effects include improving energy efficiency, optimizing driving experience, enhancing safety, prolonging battery and engine life, reducing emissions, improving the adaptability and reliability of the power system, and supporting predictive maintenance, thereby realizing more efficient, safe and environmentally friendly driving experience, while improving the overall performance and economy of the vehicle.

[0102] The application also provides a vehicle power generation system adaptive adjustment device, which comprises Figure 5 , and the vehicle power generation system adaptive adjustment device comprises:

[0103] a battery management module 10, configured to determine battery charging demand information according to real-time battery parameters;

[0104] a power management module 20, configured to obtain vehicle power demand information according to vehicle control information;

[0105] a control module 30, configured to determine a generator operation strategy according to the battery charging demand information and the vehicle power demand information.

[0106] In an embodiment, the battery management module 10 is further configured to obtain a residual power and a battery charging / discharging state at a current time according to the real-time battery parameters, determine a power interval according to the residual power, and determine the battery charging demand information according to the battery charging / discharging state and the power interval.

[0107] In an embodiment, the power management module 20 is further configured to obtain an engine speed, a real-time vehicle speed and vehicle control pedal data according to the vehicle control information, determine a basic driving state according to the engine speed and the real-time vehicle speed, determine a driving intention according to the vehicle control pedal data, and obtain the vehicle power demand information according to the basic driving state and the driving intention.

[0108] In an embodiment, the power management module 20 is further configured to determine that a driver has a deceleration intention at a current time if a brake pedal opening degree is greater than a brake pedal deceleration threshold, determine that the driver has no acceleration intention at the current time if a power pedal opening degree is less than a throttle pedal acceleration threshold and a real-time vehicle acceleration is less than a preset acceleration threshold, determine that the driver has an acceleration intention at the current time if the power pedal opening degree is greater than the throttle pedal acceleration threshold and / or the real-time vehicle acceleration is greater than the preset acceleration threshold, and determine that the driver has an uphill intention at the current time if the power pedal opening degree is greater than the throttle pedal acceleration threshold and the real-time vehicle acceleration is less than the preset acceleration threshold.

[0109] In an embodiment, the control module 30 is further configured to determine battery charging parameters according to the battery charging demand information, determine a driving intention according to the vehicle power demand information, determine an energy management mode including a power supply mode and a power recovery mode according to the driving intention, and adjust the generator operation strategy according to the battery charging parameters and the energy management mode.

[0110] In an embodiment, the control module 30 is further configured to obtain a battery charging and discharging state and an electric quantity interval according to the battery charging demand information; if the electric quantity interval is an energy recovery interval, the generator is turned off until the remaining electric quantity decreases to a charging and discharging cycle interval; if the electric quantity interval is the charging and discharging cycle interval, the charging power is adjusted to a first power; if the electric quantity interval is an electric energy retention 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.

[0111] In an embodiment, the control module 30 is further configured to, if the electric quantity interval is the electric energy retention interval and the current battery is in a charging state, adjust the charging voltage to a slow charging charging voltage and charge in a floating charging mode; if the electric quantity interval is the electric energy retention interval and the current battery is in a discharging state, adjust the charging voltage to a standard charging voltage; and if the electric quantity interval is a battery feeding interval, adjust the charging voltage to a fast charging charging voltage.

[0112] The embodiment can monitor real-time power demand and current battery state, the power demand corresponds to real-time pedal change, the battery state data includes remaining electric quantity, health state, etc., and dynamically adjust the operation strategy of the generator according to the information, so that the system can intelligently select different power generation modes according to the battery electric quantity interval and the actual driving state of the vehicle, to keep the battery always in a relatively mild charging and discharging working condition, avoid overcharging and overdischarging, reduce battery damage, thereby prolong the service life of the battery and reduce energy waste.

[0113] The vehicle power generation system adaptive adjustment device provided in the application adopts the vehicle power generation system adaptive adjustment method in the above embodiment, and can solve the technical problem of how to design a device that can ensure that the battery of a new energy vehicle maintains a mild charging and discharging working condition in various driving scenarios, so as to prolong the service life and maintain the performance stability. Compared with the prior art, the vehicle power generation system adaptive adjustment device provided in the application has the same beneficial effects as the vehicle power generation system adaptive adjustment method provided in the above embodiment, and 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.

[0114] The application provides a vehicle power generation system adaptive adjustment device, which comprises at least one processor and a memory in communication connection with 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 to enable the at least one processor to perform the vehicle power generation system adaptive adjustment method in the above embodiment one.

[0115] Reference will be made to the following Figure 6The diagram illustrates a structural schematic suitable for implementing the adaptive adjustment device for a vehicle power generation system in the embodiments of this application. The adaptive adjustment device for a vehicle power generation system in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 6 The adaptive adjustment device for the vehicle power generation system shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0116] like Figure 6 As shown, the adaptive adjustment device for the vehicle power generation system may include a processing unit 1001 (e.g., 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) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the adaptive adjustment device for the vehicle power generation system. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. The communication device 1009 allows the vehicle power generation system adaptive adjustment device to communicate wirelessly or wiredly with other devices to exchange data. Although the figure shows a vehicle power generation system adaptive adjustment device with various systems, it should be understood that implementation or possession of all the systems shown is not required. More or fewer systems may be implemented alternatively.

[0117] 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 comprising a computer program carried on a computer readable medium, the computer program containing program code for executing the method shown in the flowchart. In such embodiments, the computer program can be downloaded and installed from a network through a communication device, or installed from the storage device 1003, or installed from the ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiments disclosed in the present application are executed.

[0118] 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-mentioned embodiments, and can solve the technical problem of how to design a device that can ensure that the battery of a new energy vehicle maintains a moderate charging and discharging working condition under various driving scenarios, thereby prolonging the service life and maintaining the performance stability of the battery. Compared with the prior art, the vehicle power generation system adaptive adjustment device provided by the present application has the same beneficial effects as the vehicle power generation system adaptive adjustment method provided by the above-mentioned embodiments, and other technical features in the vehicle power generation system adaptive adjustment device are the same as the features disclosed in the previous embodiment method, which will not be repeated here.

[0119] It should be understood that various parts of the present application can be realized by hardware, software, firmware or a combination thereof. In the description of the above-mentioned embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0120] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0121] The present application provides a computer readable storage medium having stored thereon computer readable program instructions (i.e. computer program) for executing the vehicle power generation system adaptive adjustment method in the above-mentioned embodiments.

[0122] The computer readable storage medium provided in the present application may, for example, be a U disk, but is not limited to an electric, magnetic, optical, electromagnetic, infrared, or semiconductor system, system, or device, or any combination of the above. More specific examples of the computer readable storage medium can include, but are not limited to, an electric connection with one or more conductive wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present embodiment, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer readable storage medium can be transmitted by any suitable medium, including but not limited to an electric wire, an optical cable, an RF (Radio Frequency), etc., or any suitable combination of the above.

[0123] The above computer readable storage medium can be included in the vehicle power generation system adaptive adjustment device, or can exist separately without being assembled into the vehicle power generation system adaptive adjustment device.

[0124] The above computer readable storage medium carries one or more programs, which, when executed by the vehicle power generation system adaptive adjustment device, cause the vehicle power generation system adaptive adjustment device to adaptively adjust the vehicle power generation system.

[0125] Computer program code for carrying out operations of the present application can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can 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 the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider).

[0126] The computer program instructions can also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions / acts specified in the flowchart and / or block diagram block or blocks.

[0127] The modules involved in the embodiments of the present application can be implemented in software or hardware. In some cases, the names of the modules do not constitute a limitation on the modules themselves.

[0128] The readable storage medium provided by the application is a computer readable storage medium, which stores computer readable program instructions (i.e. computer programs) for executing the vehicle power generation system adaptive adjustment method, and can solve the technical problem of how to design a new energy automobile battery that can maintain a mild charging and discharging working condition under various driving scenes to prolong the service life and keep the performance stable. Compared with the prior art, the beneficial effects of the computer readable storage medium provided by the application are the same as those of the vehicle power generation system adaptive adjustment method provided by the above-mentioned embodiments, and will not be repeated here.

[0129] The computer program product provided by the application can solve the technical problem of adaptive adjustment of the vehicle power generation system. Compared with the prior art, the beneficial effects of the computer program product provided by the application are the same as those of the vehicle power generation system adaptive adjustment method provided by the above-mentioned embodiments, and will not be repeated here.

[0130] The above-mentioned is only part of the embodiments of the application, and does not limit the patent scope of the application, and any equivalent structural transformation, direct / indirect application in other related technical fields within the technical concept of the application, and the contents of the specification and drawings are included in the patent protection scope of the application.

Claims

1. An adaptive adjustment method for a vehicle power generation system, characterized in that, The adaptive adjustment method for the vehicle power generation system includes: Determine battery charging requirements based on real-time battery parameters; Based on the vehicle control information, the vehicle power demand information is obtained; Adjust the generator operation strategy based on the battery charging demand information and vehicle power demand information; The step of adjusting the generator operation strategy based on the battery charging demand information and vehicle power demand information includes: Based on the battery charging demand information, the battery charging and discharging state and capacity range are obtained; If the power range is an energy recovery range, then the generator is shut down until the remaining power drops to within the charge-discharge cycle range; If the power range is a charge-discharge cycle range, then the charging power is adjusted to the first power. If the power range is a power retention range or a battery depletion range, the charging power will be adjusted to the second power, where the first power is less than the second power. If the power range is the power retention range and the battery is currently charging, the charging voltage will be adjusted to the slow charging voltage and the floating charging mode will be used for charging. If the stated power range is the energy retention range and the current battery is in a discharging state, then the charging voltage will be adjusted to the standard charging voltage. If the stated power range is a battery depletion range, then the charging voltage will be adjusted to the fast charging voltage.

2. The adaptive adjustment method for a vehicle power generation system according to claim 1, characterized in that, The step of determining battery charging demand information based on real-time battery parameters includes: Based on the real-time battery parameters, the remaining battery power and battery charging / discharging status at the current moment are obtained; Based on the remaining battery power, determine the battery range; Based on the battery charge / discharge state and the battery capacity range, the battery charging demand information is determined.

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

4. The adaptive adjustment method for a vehicle power generation system according to claim 3, characterized in that, Determining the driving intention based on 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 intends to decelerate at the current moment. If the opening of the power pedal is less than the acceleration threshold of the accelerator pedal, and the real-time acceleration of the vehicle is less than the preset acceleration threshold, then it is determined that the driver has no intention to accelerate at the current moment. If the opening of the power pedal is greater than the acceleration threshold of the accelerator pedal and / or the real-time acceleration of the vehicle is greater than the preset acceleration threshold, it is determined that the driver has the intention to accelerate 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, then it is determined that the driver intends to go uphill at the current moment.

5. The adaptive adjustment method for a vehicle power generation system according to claim 1, characterized in that, After obtaining the battery charge / discharge state and capacity range based on the battery charging demand information, the process further includes: Based on the vehicle power demand information, determine the driving intention; Based on the driving intention, an energy management mode is determined, which includes a power supply mode and a power recovery mode. The generator operation strategy is adjusted based on the battery charging parameters and energy management mode.

6. An adaptive adjustment device for a vehicle power generation system, characterized in that, The adaptive adjustment device for the vehicle power generation system includes: The battery management module is used to determine battery charging requirements based on real-time battery parameters. The power management module is used to obtain vehicle power demand information based on vehicle control information; The control module is used to determine the generator operation strategy based on the battery charging demand information and the vehicle power demand information; The control module is further configured to obtain the battery charging / discharging state and capacity range based on the battery charging demand information; if the capacity range is an energy recovery range, the generator is shut down until the remaining capacity drops to within the charge / discharge cycle range; if the capacity range is a charge / discharge cycle range, the charging power is adjusted to a first power; if the capacity range is an energy retention range or a battery depletion range, the charging power is adjusted to a second power, where the first power is less than the second power; if the capacity range is an energy retention range and the battery is currently charging, the charging voltage is adjusted to a slow-charge voltage and a floating charging mode is used for charging; if the capacity range is an energy retention range and the battery is currently discharging, the charging voltage is adjusted to a standard charging voltage; if the capacity range is a battery depletion range, the charging voltage is adjusted to a fast-charge voltage.

7. An adaptive adjustment device for a vehicle power generation system, 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, 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 in any one of claims 1 to 5.

8. A storage medium, characterized in that, The storage medium stores an adaptive adjustment program for the vehicle power generation system, which, when executed by a processor, implements the steps of the adaptive adjustment method for the vehicle power generation system as described in any one of claims 1 to 5.

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