Energy management control method and device of vehicle, vehicle, storage medium and product

Abstract

The present application relates to the technical field of vehicle control, and particularly relates to a kind of energy management control method, device, vehicle, storage medium and product of vehicle.The method comprises: judging whether current vehicle activates energy management mode;If current vehicle activates energy management mode, the current driving cycle health degree of current vehicle is obtained, and the current battery state is determined according to the current driving cycle health degree;The backup power of power battery and the energy management strategy of current vehicle are determined according to the current battery state, and the energy management of vehicle is carried out according to backup power and energy management strategy.Thereby, by adjusting power battery backup energy storage according to vehicle total mileage or power battery health state, optimizing engine start-stop strategy, realizing adaptive adjustment according to energy management in vehicle life cycle, prolonging power battery life, and improving user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle control, in particular to an energy management control method and device of a vehicle, the vehicle, a storage medium and a product. BACKGROUND

[0002] The energy management of an electric vehicle refers to, under the premise of meeting the requirements of basic technical performance (such as power performance, driving stability, etc.) and cost of the vehicle, realizing the flow of energy between energy conversion devices (such as an engine, an electric motor, an energy storage device, a power conversion module, a power transmission device, a generator and a fuel cell, etc.) according to the characteristics of each component and the operating conditions of the vehicle along the optimal route, so as to make the energy utilization efficiency of the vehicle reach the highest.

[0003] In the related art, the operating condition of the vehicle in the driving process is usually determined according to the SOC (State of Charge) of the vehicle, and the corresponding energy management strategy is matched according to the operating condition of the vehicle.

[0004] However, the above technical solution is usually executed based on a preset strategy and cannot be adaptively adjusted according to the life cycle of the vehicle. The health state of the battery decreases with the increase of the use time. The energy that can be discharged by the power battery with different health degrees is different under the same electric quantity. If adaptive adjustment cannot be performed in real time according to the battery health degree, the engine will be frequently started and stopped when the battery health degree is low, which has an adverse effect on the economy and NVH (Noise-Vibration-Harshness) performance of the engine and greatly reduces the user experience. SUMMARY

[0005] The present application provides an energy management control method and device of a vehicle, the vehicle, a storage medium and a product, to solve the problem that the energy management strategy of the vehicle cannot be adaptively adjusted according to the battery health degree in the related art. The total mileage of the vehicle or the health state of the power battery is used to adjust the backup energy storage of the power battery and optimize the engine start-stop strategy, so as to realize adaptive adjustment of the energy management according to the life cycle of the vehicle, prolong the service life of the power battery and improve the user experience.

[0006] To achieve the above-mentioned purpose, the first aspect of the present application provides an energy management control method of a vehicle, comprising the following steps:

[0007] determining whether the current vehicle activates an energy management mode;

[0008] if the current vehicle activates the energy management mode, obtaining the current driving cycle health degree of the current vehicle, and determining the current battery state according to the current driving cycle health degree;

[0009] determining a backup power of the power battery and an energy management strategy of the current vehicle according to the current battery state, and performing energy management on the vehicle according to the backup power and the energy management strategy.

[0010] According to one embodiment of the present application, the determining the current battery state according to the current driving cycle health degree comprises:

[0011] if the current driving cycle health degree is in a first preset threshold interval, determining that the current battery state is an unhealthy state;

[0012] if the current driving cycle health degree is in a second preset threshold interval, determining that the current battery state is a decay state, wherein a lower limit value of the second preset threshold interval is greater than an upper limit value of the first preset threshold interval;

[0013] if the current driving cycle health degree is in a third preset threshold interval, determining that the current battery state is a healthy state, wherein a lower limit value of the third preset threshold interval is greater than an upper limit value of the second preset threshold interval.

[0014] According to one embodiment of the present application, the determining the backup power of the power battery and the energy management strategy of the current vehicle according to the current battery state, and performing energy management on the vehicle according to the backup power and the energy management strategy comprises:

[0015] if the current battery state is the unhealthy state, taking a first preset backup power threshold interval as the backup power, reducing the power generation of the engine according to a preset reduction strategy, adjusting an engine start-stop SOC interval of the power loss driving to a first preset interval, and reducing the engine start-up drag power to a first target power;

[0016] if the current battery state is the decay state, taking a second preset backup power threshold interval as the backup power, adjusting the engine start-stop SOC interval of the power loss driving to a second preset interval, and reducing the engine start-up drag power to a second target power;

[0017] if the current battery state is the healthy state, taking a third preset backup power threshold interval as the backup power, and increasing the power generation of the engine according to a preset increase strategy.

[0018] According to one embodiment of the present application, the determining whether the current vehicle activates the energy management mode comprises:

[0019] obtaining a total driving mileage of the current vehicle and a continuous number of times that a difference between adjacent driving cycle health degrees is greater than a preset threshold value;

[0020] If the total mileage is greater than a preset mileage or the continuous number of times is greater than a preset number of times, it is determined that the current vehicle activates the energy management mode, otherwise, it is determined that the current vehicle does not activate the energy management mode.

[0021] According to one embodiment of the present application, after determining the target state and the current state of the vehicle according to the current accelerator pedal opening degree and the current wheel end actual torque, further comprising:

[0022] If the current state is the recovery state and the target state is the driving state, when the current wheel end actual torque is in a preset positive zero crossing interval, a second target motor torque is obtained according to the motor speed change rate, the motor actual torque and the driver demand torque, and torque control is performed on the motor according to the second target motor torque.

[0023] According to one embodiment of the present application, the determination of whether the current vehicle activates the energy management mode comprises:

[0024] Obtaining the BMS communication state of the current vehicle;

[0025] If the BMS communication state is a fault state, the energy management mode is not activated.

[0026] According to the vehicle energy management control method provided by the embodiment of the present application, whether to activate the energy management mode is determined through the historical driving data of the vehicle, and when the energy management mode is activated, the current battery health state is determined, the current battery state of the vehicle is determined according to different threshold intervals of the battery health degree, and the corresponding energy management strategy is matched to perform energy management on the vehicle. Therefore, by adjusting the power battery backup energy according to the total mileage of the vehicle or the health state of the power battery, the engine start-stop strategy is optimized, the energy management is adaptively adjusted according to the life cycle of the vehicle, the life of the power battery is prolonged, and the user experience is improved.

[0027] To achieve the above object, the second embodiment of the present application provides a vehicle energy management control device, comprising:

[0028] An activation module for determining whether the current vehicle activates the energy management mode;

[0029] A determination module for, when the current vehicle activates the energy management mode, obtaining the current driving cycle health degree of the current vehicle, and determining the current battery state according to the current driving cycle health degree;

[0030] a correction module configured to determine a backup power of the power battery and an energy management strategy of the current vehicle according to the current battery state, and to perform energy management on the vehicle according to the backup power and the energy management strategy.

[0031] According to an embodiment of the present application, the determination module is specifically configured to:

[0032] determine that the current battery state is an unhealthy state when the current driving cycle health degree is in a first preset threshold interval;

[0033] determine that the current battery state is a decaying state when the current driving cycle health degree is in a second preset threshold interval, wherein a lower limit value of the second preset threshold interval is greater than an upper limit value of the first preset threshold interval;

[0034] determine that the current battery state is a healthy state when the current driving cycle health degree is in a third preset threshold interval, wherein a lower limit value of the third preset threshold interval is greater than an upper limit value of the second preset threshold interval.

[0035] According to an embodiment of the present application, the correction module is specifically configured to:

[0036] when the current battery state is the unhealthy state, set a first preset backup power threshold interval as the backup power, reduce the power generation of the engine according to a preset reduction strategy, adjust an engine start-stop SOC interval of the power loss driving to a first preset interval, and reduce the engine start-up drag power to a first target power;

[0037] when the current battery state is the decaying state, set a second preset backup power threshold interval as the backup power, and adjust the engine start-stop SOC interval of the power loss driving to a second preset interval, and reduce the engine start-up drag power to a second target power;

[0038] when the current battery state is the healthy state, set a third preset backup power threshold interval as the backup power, and increase the power generation of the engine according to a preset increase strategy.

[0039] According to an embodiment of the present application, the activation module is specifically configured to:

[0040] obtain a total driving mileage of the current vehicle and a continuous number of times that a difference between adjacent driving cycle health degrees is greater than a preset threshold value;

[0041] If the total mileage is greater than a preset mileage or the continuous number of times is greater than a preset number of times, it is determined that the current vehicle activates the energy management mode, otherwise, it is determined that the current vehicle does not activate the energy management mode.

[0042] According to one embodiment of the present application, the activation module is specifically used for:

[0043] Obtaining a BMS communication state of the current vehicle;

[0044] If the BMS communication state is a fault state, the energy management mode is not activated.

[0045] According to the vehicle energy management control device provided by the embodiment of the present application, whether the energy management mode is activated is determined through the historical travel data of the vehicle, and when the energy management mode is activated, the current battery health state is determined, the current battery state of the vehicle is determined according to different threshold intervals in which the battery health degree is located, and the energy management strategy corresponding to the current battery state is matched to perform energy management on the vehicle. Therefore, by adjusting the backup energy storage of the power battery according to the total mileage of the vehicle or the health state of the power battery, the engine start-stop strategy is optimized, the energy management is adaptively adjusted according to the life cycle of the vehicle, the life of the power battery is prolonged, and the user experience is improved.

[0046] To achieve the above object, the third aspect of the present application provides a vehicle, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor executes the program to realize the energy management control method of the vehicle as described in the above embodiments.

[0047] To achieve the above object, the fourth aspect of the present application provides a computer readable storage medium, which stores a computer program, and the program is executed by a processor to realize the energy management control method of the vehicle as described in the above embodiments.

[0048] To achieve the above object, the fifth aspect of the present application provides a computer program product, comprising a computer program, which is executed by a processor to realize the energy management control method of the vehicle as described in the above embodiments.

[0049] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0050] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0051] Figure 1A flow chart of a vehicle energy management control method according to an embodiment of the present application is provided.

[0052] Figure 2 A device architecture diagram of a vehicle energy management control method according to an embodiment of the present application is provided.

[0053] Figure 3 A flow chart of a vehicle energy management control method according to an embodiment of the present application is provided.

[0054] Figure 4 A block schematic diagram of a vehicle energy management control device according to an embodiment of the present application is provided.

[0055] Figure 5 A schematic diagram of a vehicle according to an embodiment of the present application is provided.

[0056] Reference Signs List:

[0057] 10 - device of a vehicle energy management control method, 11 - assembly information collection module, 12 - energy management correction module, 13 - storage module, 20 - vehicle energy management control device, 100 - activation module, 200 - determination module, 300 - correction module, 501 - memory, 502 - processor, 503 - communication interface. DETAILED DESCRIPTION

[0058] Embodiments of the present application are described in detail below with reference to examples illustrated in the accompanying drawings, in which the same or similar components have the same or similar reference numerals throughout. The embodiments described below by way of examples are intended to explain the present application, and should not be construed as limiting the present application.

[0059] A vehicle energy management control method, device, vehicle, storage medium and product according to embodiments of the present application are described below with reference to the accompanying drawings. First, a vehicle energy management control method according to embodiments of the present application will be described with reference to the accompanying drawings.

[0060] Figure 1 A flow chart of a vehicle energy management control method according to an embodiment of the present application is provided.

[0061] As shown in Figure 1 , the vehicle energy management control method comprises the following steps:

[0062] In step S101, it is determined whether the current vehicle activates an energy management mode.

[0063] The energy management mode refers to a mode of controlling the energy management system of the vehicle according to an energy management strategy.

[0064] Specifically, as the power battery of the vehicle is gradually worn out with the length of use, the power output of the power battery gradually decreases, and the health degree of the power battery gradually decreases. Conversely, when the power battery is new, the power battery can output power at full capacity, so the energy management system does not need to manage the energy of different components of the vehicle, and the energy management mode does not need to be activated.

[0065] As a possible implementation, in some embodiments, determining whether the current vehicle activates the energy management mode includes: obtaining the total mileage of the current vehicle and the number of consecutive times that the health degree difference between adjacent driving cycle periods is greater than a preset threshold; if the total mileage is greater than a preset mileage or the number of consecutive times is greater than a preset number, it is determined that the current vehicle activates the energy management mode, otherwise, it is determined that the current vehicle does not activate the energy management mode.

[0066] The preset threshold, the preset number and the preset mileage can be values set by a person skilled in the art according to requirements, or values obtained through a limited number of computer simulations, which are not limited here.

[0067] Specifically, the driving cycle period refers to a period in which the vehicle completes a complete driving trip, for example, the ignition time of the vehicle is the start of the trip, and the adjacent ignition-off time is the end of the trip, and the ignition-off forms a driving cycle period. The embodiment of the application can obtain the total mileage of the vehicle and the health degree of a plurality of driving cycle periods, and calculate the difference between the health degrees of each adjacent driving cycle period, and count the number of consecutive times that the health degree difference between adjacent driving cycle periods is greater than a preset threshold. When the total mileage is greater than a preset mileage, or the number of consecutive times that the health degree difference between adjacent driving cycle periods is greater than a preset threshold is greater than a preset number, the energy management mode is activated; if the total mileage is less than or equal to the preset mileage and the number of consecutive times that the health degree difference between adjacent driving cycle periods is greater than a preset threshold is less than or equal to a preset number, the energy management mode is not activated.

[0068] Exemplarily, the preset threshold is set to 10%, the preset number is set to 5 times, and the preset mileage is set to 15km. When the total mileage of the vehicle is greater than 15km, the energy management mode is activated; or the health degree difference between the current driving cycle period and the last driving cycle period exceeds 10% for 6 consecutive times, the energy management mode is activated.

[0069] It should be noted that if the health degree of the power battery increases, it is determined that the power battery is replaced, at which time the control strategy needs to be reset and the energy management mode needs to be reactivated, and the driving cycle period health degree needs to be re-identified.

[0070] Optionally, in some embodiments, determining whether the current vehicle activates the energy management mode comprises: obtaining a BMS communication state of the current vehicle; and if the BMS communication state is a fault state, the energy management mode is not activated.

[0071] Specifically, the BMS (Battery Management System) is an important component for obtaining the battery SOC and calculating the SOH (State of Health), and the BMS will misjudge when a communication fault occurs. Therefore, the embodiment of the present application determines whether the energy management mode needs to be activated by obtaining the BMS communication state of the vehicle, and the energy management mode is not activated when the BMS communication state is a fault state.

[0072] In step S102, if the current vehicle activates the energy management mode, the current driving cycle health degree of the current vehicle is obtained, and the current battery state is determined according to the current driving cycle health degree.

[0073] Specifically, when the vehicle is in the state of activating the energy management mode, the embodiment of the present application can calculate the SOH of the current power battery by obtaining the related parameters of the battery, and the SOH of the current power battery is used as the health degree of the current driving cycle, wherein the SOH is affected by two factors of the battery internal resistance and the battery capacity. The formula for calculating the SOH from the battery internal resistance is as follows:

[0074]

[0075] Wherein, R EOL is the battery internal resistance at the end of the battery life, R BOL is the battery internal resistance at the factory, and R is the battery internal resistance in the current state.

[0076] In addition, another formula for calculating the SOH from the battery capacity is as follows:

[0077]

[0078] Wherein, C EOL is the battery capacity at the end of the battery life, C BOL is the battery capacity at the factory, and C is the battery capacity in the current state.

[0079] Meanwhile, the embodiment of the present application can set different threshold intervals, and the threshold intervals correspond to the battery state. If the current driving cycle health degree is in a certain threshold interval, it is determined that the current battery state is the battery state corresponding to the threshold interval.

[0080] As a possible implementation manner, in some embodiments, the current battery state is determined according to the current driving cycle period health degree, including: if the current driving cycle period health degree is in a first preset threshold interval, determining that the current battery state is an unhealthy state; if the current driving cycle period health degree is in a second preset threshold interval, determining that the current battery state is a decay state, wherein a lower limit value of the second preset threshold interval is greater than an upper limit value of the first preset threshold interval; if the current driving cycle period health degree is in a third preset threshold interval, determining that the current battery state is a healthy state, wherein a lower limit value of the third preset threshold interval is greater than an upper limit value of the second preset threshold interval.

[0081] The first preset threshold interval, the second preset threshold interval and the third preset threshold interval can be intervals set by a person skilled in the art according to requirements, or intervals obtained through a limited number of computer simulations, which are not limited here.

[0082] Specifically, the embodiment of the present application can preset three different ranges of battery states corresponding to the unhealthy state, the decay state and the healthy state, wherein the lower limit value of the preset threshold interval corresponding to the decay state is greater than the upper limit value of the preset threshold interval corresponding to the unhealthy state, and the upper limit value of the preset threshold interval corresponding to the decay state is less than the lower limit value of the preset threshold interval corresponding to the healthy state, that is, the interval of the decay state is between the interval of the unhealthy state and the interval of the healthy state.

[0083] Exemplarily, the first preset threshold interval can be set as 0%-80%, the second preset threshold interval can be set as 81%-90%, and the third preset threshold interval can be set as 91%-100%. When the SOH is between 0%-80%, it is determined that the current battery state is the unhealthy state; when the SOH is between 81%-90%, it is determined that the current battery state is the decay state; and when the SOH is between 91%-100%, it is determined that the current battery state is the healthy state.

[0084] In step S103, the backup power of the power battery and the energy management strategy of the current vehicle are determined according to the current battery state, and the energy management of the vehicle is performed according to the backup power and the energy management strategy.

[0085] Specifically, the more serious the decay of the power battery is, the less backup power the power battery reserves under the same SOC condition, so the target balance power of the power battery needs to be set according to the current battery state to prevent the vehicle from stalling after the power is exhausted.

[0086] In some embodiments, the backup power of the power battery and the energy management strategy of the current vehicle are determined according to the current battery state, and the energy management of the vehicle is performed according to the backup power and the energy management strategy, including: if the current battery state is an unhealthy state, a first preset backup power threshold interval is taken as the backup power, the power generation of the engine is reduced according to a preset reduction strategy, the engine start-stop SOC interval of the power loss driving is adjusted to a first preset interval, and the engine start-up drag power is reduced to a first target power; if the current battery state is a decay state, a second preset backup power threshold interval is taken as the backup power, the engine start-stop SOC interval of the power loss driving is adjusted to a second preset interval, and the engine start-up drag power is reduced to a second target power; if the current battery state is a healthy state, a third preset backup power threshold interval is taken as the backup power, and the power generation of the engine is increased according to a preset increase strategy.

[0087] The first preset backup power threshold interval, the second preset backup power threshold interval, the third preset backup power threshold interval, the first preset interval and the second preset interval can be intervals set by those skilled in the art according to requirements, or intervals obtained through a limited number of computer simulations, and are not specifically limited herein; the first target power and the second target power can be powers set by those skilled in the art according to requirements, or powers obtained through a limited number of computer simulations, and are not specifically limited herein.

[0088] Specifically, if the current battery state is an unhealthy state, it means that the current power battery is seriously degraded, and the total capacity of the battery is reduced, so it is necessary to control a high degree of power battery backup power, and at the same time, the power generation of the engine is reduced according to the preset reduction strategy to improve the NVH effect, and sufficient energy is used to adapt to various working conditions, and at the same time, the engine start-stop SOC value of the power shortage driving is adjusted to the first preset interval, and the power generation of the engine is reduced according to the preset reduction strategy to prevent the engine from being frequently started and stopped due to the decrease of the power battery capacity, which reduces the available energy in the pure electric interval; At the same time, the engine start-up drag power is reduced to the first target power to avoid the impact of large current on the battery and the influence of pressure drop on the high-voltage system. If the current battery state is a degradation state, it means that the current power battery is degraded, so the degradation rate of the battery should be slowed down, so the power battery backup power is controlled to be moderate, the second preset backup power threshold interval is used as the backup power, the engine start-stop SOC interval of the power shortage driving is adjusted to the second preset interval, and the engine drag power is adjusted to the second target power to ensure the start-stop efficiency of the vehicle, and the user's experience and the economy of the vehicle are taken into account. If the current battery state is a healthy state, a lower power battery backup power can be controlled, the third preset backup power threshold interval is used as the backup power, and the power generation of the engine is increased according to the preset increase strategy to avoid the driving problem caused by low power, and more low-cost power from the power grid is used to drive the vehicle to reduce the user's vehicle cost.

[0089] It should be noted that the lower limit value of the first preset backup power threshold interval should be greater than the upper limit value of the second preset backup power threshold interval, and the lower limit value of the second preset backup power threshold interval should be greater than the upper limit value of the third preset backup power threshold interval, so that the backup energy of the unhealthy state is higher, the backup energy of the degradation state is moderate but greater than the backup energy of the healthy state.

[0090] Exemplarily, the first preset backup power threshold interval can be 35-55%, the second preset backup power threshold interval can be 20-34%, and the third preset backup power threshold interval can be 0-19%.

[0091] In order for those skilled in the art to further understand the energy management control method of the vehicle of the embodiments of the present application, the following will be described in detail in combination with specific embodiments.

[0092] Specifically, as shown in Figure 2 , Figure 2 The device architecture diagram of the energy management control method provided according to one specific embodiment of the present application is shown, which comprises: an assembly information acquisition module 11, an energy management correction module 12 and a storage module 13.

[0093] The assembly information acquisition module 11 is configured to acquire the total vehicle driving mileage and the power battery health information, and to check and pre-process the signal value.

[0094] The energy management correction module 12 is configured to preset three different range health degree types of energy management strategies. When the power battery is in an unhealthy state, the battery backup energy is the highest, the engine SOC start-stop range is the widest, and the engine start-stop control is the most conservative. When the power battery is in a decay state, the battery backup energy is moderate, the engine SOC start-stop range is moderate, and the engine start-stop control is moderate. When the power battery is in a healthy state, the battery backup energy is the lowest, the engine SOC start-stop range is the narrowest, and the engine start-stop control is aggressive. The energy management correction module 12 receives the health degree identified by the assembly information acquisition module 11 and selects the corresponding energy management strategy. Meanwhile, the energy management correction module 12 corrects the energy management strategy according to the total vehicle driving mileage.

[0095] The storage module 13 is configured to store the power battery health information, which is used for checking the total vehicle information in the next driving cycle.

[0096] In this embodiment, as shown in FIG. 1, the energy management control method of the vehicle includes the following steps: Figure 3

[0097] S301, start.

[0098] S302, the controller is initialized to read the identification data of the last driving cycle in the storage module.

[0099] S303, identify the power battery health degree and perform checking.

[0100] S304, determine whether the power battery is in a healthy state. If yes, perform S305; if no, perform S306.

[0101] S305, do not activate the energy management mode and do not correct the energy management strategy.

[0102] S306, identify that the power battery is in a decay or unhealthy state.

[0103] S307, activate the energy management mode and correct the energy management strategy.

[0104] S308, store the power battery health degree information of the current driving cycle when the power supply is turned off and the system is hibernated.

[0105] S309, end.

[0106] ​According to the energy management control method of the vehicle provided by the embodiment of the present application, whether to activate the energy management mode is determined through the historical driving data of the vehicle, and when the energy management mode is activated, the current battery health state is determined, the current battery state of the vehicle is determined according to different threshold intervals in which the battery health degree is located, and the energy management strategy corresponding to the current battery state is matched to perform energy management on the vehicle. In this way, the backup energy of the power battery is adjusted, the engine start-stop strategy is optimized, and the energy management is adaptively adjusted according to the life cycle of the vehicle, so as to prolong the service life of the power battery and improve the user experience.

[0107] Secondly, the energy management control device of the vehicle according to the embodiment of the present application is described with reference to the accompanying drawings.

[0108] Figure 4 is a block schematic diagram of the energy management control device of the vehicle according to one embodiment of the present application.

[0109] As shown in Figure 4 , the energy management control device 20 of the vehicle includes an activation module 100, a determination module 200 and a correction module 300.

[0110] The activation module 100 is configured to determine whether the current vehicle activates the energy management mode.

[0111] The determination module 200 is configured to, when the current vehicle activates the energy management mode, acquire the current driving cycle health degree of the current vehicle, and determine the current battery state according to the current driving cycle health degree.

[0112] The correction module 300 is configured to determine the backup energy of the power battery and the energy management strategy of the current vehicle according to the current battery state, and perform energy management on the vehicle according to the backup energy and the energy management strategy.

[0113] According to one embodiment of the present application, the determination module 200 is specifically configured to: when the current driving cycle health degree is in a first preset threshold interval, determine that the current battery state is an unhealthy state; when the current driving cycle health degree is in a second preset threshold interval, determine that the current battery state is a decay state, wherein the lower limit value of the second preset threshold interval is greater than the upper limit value of the first preset threshold interval; and when the current driving cycle health degree is in a third preset threshold interval, determine that the current battery state is a healthy state, wherein the lower limit value of the third preset threshold interval is greater than the upper limit value of the second preset threshold interval.

[0114] According to one embodiment of the present application, the modifying module 300 is specifically configured to: when the current battery state is an unhealthy state, taking a first preset backup power threshold interval as the backup power, reducing the power generation of the engine according to a preset reduction strategy, adjusting the engine start-stop SOC interval of the power shortage driving to a first preset interval, and reducing the engine start-up drag power to a first target power; when the current battery state is a decay state, taking a second preset backup power threshold interval as the backup power, adjusting the engine start-stop SOC interval of the power shortage driving to a second preset interval, and reducing the engine start-up drag power to a second target power; and when the current battery state is a healthy state, taking a third preset backup power threshold interval as the backup power, and increasing the power generation of the engine according to a preset increase strategy.

[0115] According to one embodiment of the present application, the activating module 100 is specifically configured to: acquire the total driving mileage of the current vehicle and the number of consecutive times that the difference between the adjacent driving cycle health degrees is greater than a preset threshold; if the total driving mileage is greater than a preset mileage or the number of consecutive times is greater than a preset number, it is determined that the energy management mode of the current vehicle is activated, otherwise, it is determined that the energy management mode of the current vehicle is not activated.

[0116] According to one embodiment of the present application, the activating module 100 is specifically configured to: acquire the BMS communication state of the current vehicle; if the BMS communication state is a fault state, the energy management mode is not activated.

[0117] According to the energy management control device of the vehicle provided by the embodiments of the present application, whether the energy management mode is activated is determined through the historical travel data of the vehicle, and when the energy management mode is activated, the current battery health state is determined, the current battery state of the vehicle is determined according to different threshold intervals of the battery health degree, and the energy management strategy corresponding to the current battery state is matched to perform energy management on the vehicle. Therefore, by adjusting the backup energy storage of the power battery according to the total mileage of the vehicle or the health state of the power battery, the engine start-stop strategy is optimized, the energy management is adaptively adjusted according to the life cycle of the vehicle, the life of the power battery is prolonged, and the user experience is improved.

[0118] Figure 5 A structural schematic diagram of a vehicle is provided for the embodiments of the present application. The vehicle can include:

[0119] The memory 501, the processor 502, and the computer program stored in the memory 501 and executable on the processor 502.

[0120] The processor 502 implements the energy management control method of the vehicle provided in the above embodiments when executing the program.

[0121] Further, the vehicle further includes:

[0122] The communication interface 503 is configured to communicate between the memory 501 and the processor 502.

[0123] The memory 501 is configured to store a computer program executable on the processor 502.

[0124] The memory 501 can include a high-speed RAM (Random Access Memory) memory, and can further include a non-volatile memory, for example, at least one disk memory.

[0125] If the memory 501, the processor 502 and the communication interface 503 are independently implemented, the communication interface 503, the memory 501 and the processor 502 can be connected through a bus and communicate with each other. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, Figure 5 Only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0126] Optionally, in a specific implementation, if the memory 501, the processor 502 and the communication interface 503 are integrated on a chip, the memory 501, the processor 502 and the communication interface 503 can communicate with each other through an internal interface.

[0127] The processor 502 can be a CPU (Central Processing Unit) or an ASIC (Application Specific Integrated Circuit) or one or more integrated circuits configured to implement embodiments of the present application.

[0128] The embodiments of the present application also provide a computer readable storage medium, which stores a computer program, and the program is executed by a processor to implement the energy management control method of the vehicle.

[0129] In addition, the terms "first", "second", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or a specific number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0130] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0131] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. An energy management control method of a vehicle, characterized by, The method comprises the following steps: determining whether the current vehicle activates an energy management mode; if the current vehicle activates the energy management mode, obtaining a current driving cycle health degree of the current vehicle, and determining a current battery state according to the current driving cycle health degree; determining a backup power of the power battery and an energy management strategy of the current vehicle according to the current battery state, and performing energy management on the vehicle according to the backup power and the energy management strategy; the determination of whether the current vehicle activates the energy management mode comprises: obtaining a total driving mileage of the current vehicle and a continuous number of times that a difference between adjacent driving cycle health degrees is greater than a preset threshold value; if the total driving mileage is greater than a preset mileage or the continuous number of times is greater than a preset number of times, it is determined that the current vehicle activates the energy management mode, otherwise, it is determined that the current vehicle does not activate the energy management mode.

2. The method of claim 1, wherein, the determination of the current battery state according to the current driving cycle health degree comprises: if the current driving cycle health degree is in a first preset threshold value interval, it is determined that the current battery state is an unhealthy state; if the current driving cycle health degree is in a second preset threshold value interval, it is determined that the current battery state is a decay state, wherein a lower limit value of the second preset threshold value interval is greater than an upper limit value of the first preset threshold value interval; if the current driving cycle health degree is in a third preset threshold value interval, it is determined that the current battery state is a healthy state, wherein a lower limit value of the third preset threshold value interval is greater than an upper limit value of the second preset threshold value interval.

3. The method of claim 2, wherein, the determination of the backup power of the power battery and the energy management strategy of the current vehicle according to the current battery state, and the energy management on the vehicle according to the backup power and the energy management strategy, comprises: if the current battery state is the unhealthy state, a first preset backup power threshold value interval is taken as the backup power, the power generation of the engine is reduced according to a preset reduction strategy, the engine start-stop SOC interval of the power loss driving is adjusted to a first preset interval, and the engine start-up drag power is reduced to a first target power; if the current battery state is the decay state, a second preset backup power threshold value interval is taken as the backup power, the engine start-stop SOC interval of the power loss driving is adjusted to a second preset interval, and the engine start-up drag power is reduced to a second target power; if the current battery state is the healthy state, a third preset backup power threshold value interval is taken as the backup power, and the power generation of the engine is increased according to a preset increase strategy.

4. The method of claim 1, wherein, the determination of whether the current vehicle activates the energy management mode comprises: obtaining a BMS communication state of the current vehicle; if the BMS communication state is a fault state, the energy management mode is not activated.

5. An energy management control device for a vehicle, characterized by comprising: The device is used to implement the method according to any one of claims 1-4, and the device comprises: an activation module configured to determine whether the current vehicle activates an energy management mode; determining a current driving cycle health degree of the current vehicle when the current vehicle activates the energy management mode, and determining a current battery state according to the current driving cycle health degree; correcting a backup power of the power battery and an energy management strategy of the current vehicle according to the current battery state, and performing energy management on the vehicle according to the backup power and the energy management strategy.

6. The apparatus of claim 5, wherein the determining module is specifically configured to: determine that the current battery state is an unhealthy state when the current driving cycle health degree is in a first preset threshold interval; when the current driving cycle health degree is in a second preset threshold interval, determining that the current battery state is a degradation state, wherein, a lower limit value of the second preset threshold interval is greater than an upper limit value of the first preset threshold interval; determine that the current battery state is a healthy state when the current driving cycle health degree is in a third preset threshold interval, wherein a lower limit value of the third preset threshold interval is greater than an upper limit value of the second preset threshold interval.

7. A vehicle characterized by comprising: comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the energy management control method of the vehicle according to any one of claims 1-4.

8. A computer-readable storage medium having stored thereon a computer program, characterized in that, The program is executed by the processor to implement the energy management control method of the vehicle according to any one of claims 1-4.

9. A computer program product, characterised in that, comprising a computer program, which, when executed by a processor, is used to implement the energy management control method of the vehicle according to any one of claims 1-4.

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