A method for coordinated control of automobile starting power supply and engine

Abstract

The present disclosure relates to a method for coordinated control of a vehicle starting power supply and an engine, and relates to the field of vehicle control technology; engine information matching the user's engine usage habits is determined through a vehicle starting signal and an engine usage habit model, and starting power supply information matching the user's starting power supply usage habits is determined through battery power, starting power supply power, and historical usage information. Based on the engine information and starting power supply information, the determined engine starting strategy can match the user's usage habits. Thus, the technical solution can achieve coordinated control of the starting power supply and the engine based on the user's usage habits.

Description

Technical Field

[0001] The present disclosure relates to the field of automobile control technology, and in particular to a method for coordinated control of an automobile starting power supply and an engine. Background Art

[0002] As automobile technology develops, electric vehicles also develop. In the application of electric vehicles, the application of starting power supplies is also relatively common. Starting power supplies are an important supplement to the automotive electrical system, especially when battery performance deteriorates or in harsh environments. With the development of technology, starting power supplies are also constantly improving to adapt to a wider range of application scenarios and provide more reliable performance.

[0003] Currently, the application of starting power is usually implemented based on user needs and has poor flexibility. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present disclosure provides a method for coordinated control of a vehicle starting power supply and an engine.

[0005] According to an embodiment of the present disclosure, a method for coordinated control of a vehicle starting power supply and an engine is provided, comprising obtaining a vehicle starting signal, a battery power level, a starting power supply power level and historical usage information, wherein the historical usage information is used to characterize battery usage and starting power supply usage between a historical time point and a current time point, wherein the historical time point is the time point when the battery last finished charging; determining engine information that matches the user's engine usage habits based on the vehicle starting signal and an engine usage habit model; determining starting power supply information that matches the user's starting power supply usage habits based on the battery power level, the starting power supply power level and the historical usage information; determining an engine starting control strategy based on the engine information and the starting power supply information, and executing the engine starting control strategy, wherein the engine starting control strategy includes a battery control strategy and a starting power supply control strategy.

[0006] Optionally, determining the engine information that matches the user's engine usage habits based on the vehicle start-up signal and the engine usage habit model includes: determining the vehicle power-on percentage based on the vehicle start-up signal; obtaining a preset vehicle power-on percentage, the preset vehicle power-on percentage being the vehicle power-on percentage determined based on historical vehicle power-on percentages; determining a difference between the vehicle power-on percentage and the preset vehicle power-on percentage; determining a weight of the vehicle power-on percentage based on the difference; and inputting the vehicle power-on percentage and the weight of the vehicle power-on percentage into the engine usage habit model to obtain the engine information output by the engine usage habit model.

[0007] Optionally, the method for coordinated control of the vehicle starting power supply and the engine also includes: obtaining a preset engine usage habit model, the preset engine usage habit model is obtained by training with a first training data set, the first training data set is a training data set generated based on big data, the big data includes multiple types of vehicle engine starting information and the vehicle power-on percentages corresponding to the multiple types of vehicle engine starting information; generating a second training data set based on historical engine starting information and the vehicle power-on percentages corresponding to the historical engine starting information; generating a target training data set based on the first training data set and the second training data set, wherein the proportion of data belonging to the first training data set and the proportion of data belonging to the second training data set in the target training data set are associated with the amount of data in the second training data set; and updating and training the preset engine usage habit model based on the target training data set to obtain the engine usage habit model.

[0008] Optionally, the historical usage information includes: historical usage information corresponding to the target automobile subsystem, the historical usage information includes: historical battery power, historical starting power supply power, historical battery usage power and historical starting power supply usage power with corresponding relationships, and determining the starting power supply information that matches the starting power supply usage habits of the user based on the battery power, the starting power supply power and the historical usage information: determining a target historical battery power that matches the battery power from the historical usage information; determining a target starting power supply battery power that matches the starting power supply power from the historical usage information; determining a first usage power ratio between a historical battery usage power corresponding to the target historical battery power and a historical starting power supply usage power; determining a second usage power ratio between a historical battery usage power corresponding to the target historical starting power supply power and a historical starting power supply usage power; and determining the starting power supply information based on the first usage power ratio and the second usage power ratio.

[0009] Optionally, the starting power supply information includes: the starting power supply start time, and the starting power supply information is determined based on the first power usage ratio and the second power usage ratio, including: if the first power usage ratio is less than the second power usage ratio, it is determined that the starting power supply start time is later than the engine start time; if the first power usage ratio is greater than the second power usage ratio, it is determined that the starting power supply start time is earlier than or equal to the engine start time; if the first power usage ratio is equal to the second power usage ratio, the starting power supply start time is determined according to the historical starting power supply usage power corresponding to the target historical battery power or the historical starting power supply usage power corresponding to the target historical starting power supply power.

[0010] Optionally, the starting power supply information is used to characterize that the starting power supply starts the engine alone or the starting power supply assists the battery to start the engine, and the starting power supply information is determined based on the first power usage ratio and the second power usage ratio, including: if the first power usage ratio is less than the second power usage ratio, determining the starting power supply information used to characterize that the starting power supply assists the battery to start the engine; if the first power usage ratio is greater than the second power usage ratio, determining the starting power supply information used to characterize that the starting power supply starts the engine alone; if the first power usage ratio is equal to the second power usage ratio, determining the starting power supply information based on the historical starting power usage power corresponding to the target historical battery power and the historical starting power usage power corresponding to the target historical starting power supply power.

[0011] Optionally, the engine information includes a starting speed and a starting current, and the starting power supply information includes: a starting power supply start time, and determining the engine starting control strategy based on the engine information and the starting power supply information includes: if the starting power supply start time is later than the engine starting time, determining the battery control strategy based on the starting speed and the starting current, and determining the starting power supply control strategy based on the starting power supply start time; if the starting power supply start time is earlier than or equal to the engine starting time, determining the battery control strategy based on the starting speed and the starting current, and determining the starting power supply control strategy based on the starting power supply start time and the battery control strategy.

[0012] Optionally, the engine information includes starting speed and starting current, and the starting power supply information is used to characterize that the starting power supply starts the engine alone or that the starting power supply assists the battery in starting the engine, and determining the engine starting control strategy based on the engine information and the starting power supply information includes: if the starting power supply information is used to characterize that the starting power supply starts the engine alone, determining the starting power supply control strategy based on the starting speed and the starting current, and determining the battery control strategy based on the starting power supply control strategy; if the starting power supply information is used to characterize that the starting power supply assists the battery in starting the engine, determining the battery control strategy and the starting power supply control strategy based on the starting speed and the starting current.

[0013] Optionally, the method for coordinated control of the vehicle starting power supply and the engine also includes: obtaining multiple engine starting control strategies recorded between the historical time point and the current time point; determining the similarity between the multiple engine starting control strategies and the currently executed engine starting control strategy; based on the similarity, determining an evaluation result for characterizing the stability of the coordinated control of the vehicle starting power supply and the engine; and updating the engine usage habit model based on the evaluation result.

[0014] Optionally, determining the similarity between the multiple engine start control strategies and the currently executed engine start control strategy includes: determining the battery control strategy similarity between the multiple engine start control strategies and the currently executed engine start control strategy; determining the starting power supply control strategy similarity between the multiple engine start control strategies and the currently executed engine start control strategy; and determining the similarity between the multiple engine start control strategies and the currently executed engine start control strategy based on the battery control strategy similarity and the starting power supply control strategy similarity.

[0015] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0016] The engine information matching the user's engine usage habits is determined through the car start signal and the engine usage habit model, and the starting power information matching the user's starting power usage habits is determined through the battery power, the starting power power and the historical usage information. The engine start strategy determined based on the engine information and the starting power information can match the user's usage habits. Thus, the technical solution can realize the coordinated control of the starting power and the engine based on the user's usage habits.

[0017] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0019] Figure 1 It is a schematic diagram of an application scenario according to an exemplary embodiment.

[0020] Figure 2 The present invention is a flow chart showing a method for cooperatively controlling a vehicle starting power supply and an engine according to an exemplary embodiment.

[0021] Figure 3 The figure is a schematic diagram showing historical usage information according to an exemplary embodiment.

[0022] Figure 4 The present invention is a block diagram of a vehicle starting power supply and engine cooperative control device according to an exemplary embodiment.

[0023] Figure 5 The invention is a block diagram of a car according to an exemplary embodiment. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0025] It should be noted that all actions of acquiring signals, information or data in the present disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the device is located and with the authorization given by the owner of the corresponding device.

[0026] As automobile technology develops, electric vehicles also develop. In the application of electric vehicles, the application of starting power supplies is also relatively common. Starting power supplies are an important supplement to the automotive electrical system, especially when battery performance deteriorates or in harsh environments. With the development of technology, starting power supplies are also constantly improving to adapt to a wider range of application scenarios and provide more reliable performance.

[0027] Figure 1 is a schematic diagram of an application scenario according to an exemplary embodiment. Figure 1 As shown, in this application scenario, a starting power source, an engine and a cooperative control system are involved, and the starting power source and the engine both belong to the automobile.

[0028] As for the starting power supply, it usually contains an energy storage unit, the most common of which is a lithium-ion battery or a lead-acid battery. This energy storage unit stores enough electrical energy to be used when starting the car.

[0029] The starting power supply contains a power conversion module, which can convert the direct current (DC) in the energy storage unit into high-current DC suitable for starting the car.

[0030] The starting power supply has an intelligent control system that can identify the type of connected car and the battery status, and automatically adjust the output current and voltage to match the starting requirements of the car.

[0031] In addition, to ensure safe use, the starting power supply is equipped with multiple safety protection mechanisms, such as short circuit protection, overload protection and overheating protection, to prevent accidents during use.

[0032] Regarding the engine, the engine of an electric car receives electrical energy from the car's battery pack. The battery pack is the main energy storage unit of an electric car.

[0033] Electric vehicles generally use two types of motors: DC motors and AC motors. Among AC motors, permanent magnet synchronous motors and asynchronous motors are the two most common types.

[0034] An electric car's engine is managed by an electronic controller that adjusts the amount and direction of electrical current based on driver input, such as the position of the accelerator pedal, thereby controlling the engine's speed and torque.

[0035] The cooperative control system may be a part of the engine control system or a part of the vehicle system, and is used to realize the cooperative control of the starting power supply and the engine.

[0036] It can be understood that, on the basis that the starting power supply is equipped with an intelligent control system, the collaborative control system can be connected to the intelligent control system to achieve corresponding control of the starting power supply.

[0037] Currently, the application of starting power is usually implemented based on user needs and has poor flexibility.

[0038] Based on this, the embodiment of the present disclosure provides a technical solution, in which the engine information matching the user's engine usage habits is determined through the car start signal and the engine usage habit model, and the starting power information matching the user's starting power usage habits is determined through the battery power, the starting power supply power and the historical usage information. Based on the engine information and the starting power supply information, the determined engine start strategy can match the user's usage habits. Thus, the technical solution can realize the coordinated control of the starting power supply and the engine based on the user's usage habits.

[0039] Figure 2 is a flow chart showing a method for coordinated control of a vehicle starting power supply and an engine according to an exemplary embodiment. Figure 1 As shown, the following steps are included.

[0040] Step 201, obtaining a vehicle start signal, battery power, start power supply power and historical usage information. The historical usage information is used to characterize the battery usage and start power supply usage between a historical time point and a current time point, where the historical time point is the time point when the battery last finished charging;

[0041] Step 202, determining engine information matching the user's engine usage habits based on the car start signal and the engine usage habit model.

[0042] Step 203: Determine starting power source information that matches the user's starting power source usage habits based on the battery power, the starting power source power, and the historical usage information.

[0043] Step 204, determining an engine start control strategy based on the engine information and the starting power supply information, and executing the engine start control strategy, the engine start control strategy including a battery control strategy and a starting power supply control strategy.

[0044] In some embodiments, the car start signal may be a signal initiated by a user (driver) through a start device, for example, the user starts the entire vehicle system and steps on the accelerator to start driving the car.

[0045] In some embodiments, the electric vehicle may adopt automatic driving, in which case the vehicle start signal may be a start signal initiated by the automatic driving system.

[0046] In some embodiments, the battery power and the starting power supply power are both information that can be monitored by the automobile system and can be directly obtained.

[0047] In some embodiments, the historical time point is the time point when the battery last finished charging. Correspondingly, the historical usage information represents the battery usage and startup power usage between the historical time point and the current time point. The implementation of the historical usage information is described in the subsequent embodiments.

[0048] In step 202, engine information matching the user's engine usage habits is determined based on the vehicle start signal and the engine usage habit model.

[0049] It is understandable that when a user drives a car, he or she usually has his or her own driving habits (i.e., usage habits), which can be reflected in the start-stop process. Therefore, by analyzing the user's driving habits corresponding to the start-stop process, the engine information matching the driving habits can be determined, so as to control the engine based on the engine information.

[0050] As an optional implementation, step 202 includes: determining the vehicle power-on percentage based on the vehicle start-up signal; obtaining a preset vehicle power-on percentage, the preset vehicle power-on percentage being the vehicle power-on percentage determined based on historical vehicle power-on percentages; determining a difference between the vehicle power-on percentage and the preset vehicle power-on percentage; determining a weight of the vehicle power-on percentage based on the difference; inputting the vehicle power-on percentage and the weight of the vehicle power-on percentage into an engine usage habit model to obtain engine information output by the engine usage habit model.

[0051] It can be understood that the percentage of car power-on can represent the car startup speed required by the user.

[0052] In some embodiments, the preset car power-on percentage may have an initial value, which may be a general car power-on percentage configured by a car manufacturer. The preset car power-on percentage may be updated as the user uses it later. Therefore, the preset car power-on percentage may be updated according to the historical car power-on percentage.

[0053] For example, each time the percentage of the car is powered on is recorded, and the power-on percentage of the car is updated based on the percentage of the car. The updating method can be: determining the average value of the historical percentage of the car powered on, and updating the preset percentage of the car powered on to the average value. Alternatively, determining the median value of the historical percentage of the car powered on, and updating the preset percentage of the car powered on to the median value.

[0054] In some embodiments, the weight of the vehicle power-on percentage can be directly the difference between the vehicle power-on percentage and the preset vehicle power-on percentage; or, it can be the weight value converted from the difference between the vehicle power-on percentage and the preset vehicle power-on percentage, and the conversion relationship can be preset. For example, multiple difference ranges are configured, and different difference ranges correspond to different weight values. Based on the conversion relationship, the current weight value can be determined.

[0055] In some embodiments, the engine usage habit model may be a pre-trained model.

[0056] As an optional implementation, the pre-training process includes: obtaining a preset engine usage habit model, the preset engine usage habit model is obtained by training with a first training data set, the first training data set is a training data set generated based on big data, the big data includes multiple types of automobile engine start information and the percentage of automobile power-on corresponding to the multiple types of automobile engine start information; generating a second training data set according to historical engine start information and the percentage of automobile power-on corresponding to the historical engine start information; generating a target training data set according to the first training data set and the second training data set, wherein the proportion of data belonging to the first training data set and the proportion of data belonging to the second training data set in the target training data set are associated with the amount of data in the second training data set; and updating and training the preset engine usage habit model according to the target training data set to obtain the engine usage habit model.

[0057] In this embodiment, an initial usage habit model obtained by training based on a training data set generated based on big data is preset. It can be understood that the usage habit model can be regarded as a general habit model. In the early stage, when there is less data that can analyze user usage habits, the engine information can be determined through the usage habit model.

[0058] Therefore, the preset usage habit model is a usage habit model used when there is no historical engine start information and the vehicle power-on percentage corresponding to the historical engine start information.

[0059] Furthermore, as the car is used, after having historical engine start information and the car power-on percentage corresponding to the historical engine start information, a new training data set, ie, a second training data set, may be generated.

[0060] In some embodiments, the more data there is in the second training data set, the higher the proportion of data in the second training data set.

[0061] For example, the proportion of data belonging to the first training data set and the proportion of data belonging to the second training data set in the target training data set can be determined according to the ratio of the data amount of the first training data set to the data amount of the second training data set. For example, if the amount of data in the first training data set is 100 and the amount of data in the second training data set is 50, then the proportion of data belonging to the first training data set in the target training data set can be 2 / 3, and the proportion of data belonging to the second training data set can be 1 / 3.

[0062] Furthermore, based on the target training data, the preset engine usage habit model can be updated and trained to obtain the engine usage habit model.

[0063] In some embodiments, when the amount of data in the second training data set is greater than that in the first training data set, the first training data set may be unnecessary, and only the second training data set may be used as updated training data to continuously update the model. That is, the engine usage habit model will be continuously updated as the amount of data increases.

[0064] In some embodiments, the multiple types of automobile engine start information may be start information of automobiles of the same type as the current automobile, or may include start information of automobiles of the same type and automobiles of different types.

[0065] In some embodiments, the automobile engine starting information may include starting speed and starting current; it can be understood that the data recorded in big data and historical data are all measured data, so the engine usage habit model is trained with these data, so the engine usage habit model can output engine information based on the input vehicle power-on percentage and the weight of the vehicle power-on percentage.

[0066] In some embodiments, the engine usage habit model may be a large language model or a neural network model, etc.

[0067] In some embodiments, the weight of the vehicle power-on percentage may be regarded as an input weight of the engine usage habit model, which may make the prediction result of the engine usage habit model more accurate.

[0068] In some embodiments, when performing model training based on the above-mentioned training data set, the above-mentioned weight determination method can also be used to determine the corresponding weights, and the corresponding weights are input into the model for training. In this case, the weights can be regarded as a training data label.

[0069] In step 203, starting power source information matching the user's starting power source usage habits is determined based on the battery power, the starting power source power, and the historical usage information.

[0070] As an optional implementation, the historical usage information includes: historical usage information corresponding to the target vehicle subsystem, and the historical usage information includes: historical battery power, historical starting power supply power, historical battery usage power and historical starting power supply usage power with corresponding relationships.

[0071] In some embodiments, the target automobile subsystem may be a drive control system, an entertainment system, an air conditioning system, and the like.

[0072] In some embodiments, the historical battery power, historical startup power supply power, historical battery usage power, and historical startup power supply usage power that have corresponding relationships may be recorded in the form of a chart.

[0073] Figure 3 is a schematic diagram showing historical usage information according to an exemplary embodiment. Figure 3 As shown, the historical usage information is recorded in the form of a curve.

[0074] exist Figure 3 In the data, the battery power, starting power supply power, battery usage power and starting power supply usage power are involved. These values ​​are the values ​​recorded during the battery discharge cycle. When recording, a sampling recording method can be adopted, for example: recording once every preset time, recording the battery power, starting power supply power, battery usage power and starting power supply usage power at that moment; wherein, the battery usage power and starting power supply usage power are the usage power monitored from the beginning of the discharge cycle.

[0075] Understandably, Figure 3 The changes in the different information shown are only examples and do not constitute a limitation to the embodiments of the present disclosure.

[0076] Furthermore, step 203 may include: determining a target historical battery power that matches the battery power from the historical usage information; determining a target starting power supply battery power that matches the starting power supply power from the historical usage information; determining a first power usage ratio between the historical battery usage power corresponding to the target historical battery power and the historical starting power supply usage power; determining a second power usage ratio between the historical battery usage power corresponding to the target historical starting power supply power and the historical starting power supply usage power; and determining the starting power supply information based on the first power usage ratio and the second power usage ratio.

[0077] In this embodiment, the first power usage ratio can represent the historical battery usage and historical startup power usage determined from the battery power dimension, and the second power usage ratio can represent the historical battery usage and historical startup power usage determined from the startup power dimension.

[0078] Generally speaking, the power consumption of the battery is greater than the power consumption of the starting power source, so the first power consumption ratio and the second power consumption ratio are both greater than 1.

[0079] Therefore, assuming that the battery power usage is relatively constant, by analyzing the relationship between the first power usage ratio and the second power usage ratio, the user's usage habits for the starting power source can be seen, for example: power usage habits, based on which it can be determined whether the starting power source is involved in starting the engine.

[0080] Therefore, as an optional implementation, the starting power supply information includes: the starting power supply start time, and the starting power supply information is determined based on the first power usage ratio and the second power usage ratio, including: if the first power usage ratio is less than the second power usage ratio, it is determined that the starting power supply start time is later than the engine start time; if the first power usage ratio is greater than the second power usage ratio, it is determined that the starting power supply start time is earlier than or equal to the engine start time; if the first power usage ratio is equal to the second power usage ratio, the starting power supply start time is determined based on the historical starting power usage power corresponding to the target historical battery power or the historical starting power usage power corresponding to the target historical starting power power.

[0081] In this embodiment, if the first power usage ratio is less than the second power usage ratio, it means that the user uses less power for the starting power supply, and the starting power supply may not be used for starting the engine, and the starting power supply may be operated after the engine is started. If the first power usage ratio is greater than the second power usage ratio, it means that the user uses relatively more power for the starting power supply, and the starting power supply may be operated before the engine is started.

[0082] Therefore, the starting time of the starting power source is made to conform to the user's usage habits for the starting power source.

[0083] In some embodiments, when the first power usage ratio is equal to the second power usage ratio, it indicates that the user's use of the starting power supply is basically stable. At this time, the starting power supply start-up time can be determined based on the historical starting power supply usage power corresponding to the target historical battery power or the historical starting power supply usage power corresponding to the target historical starting power supply power.

[0084] For example, if the historical starting power usage power corresponding to the target historical battery power or the historical starting power usage power corresponding to the target historical starting power power is greater than or equal to the preset usage power, the starting power start time is earlier than the engine start time; otherwise, the starting power start time is later than the engine start time.

[0085] The engine start time can be understood as the time when the start current is input to the engine. If the start power supply starts to be used earlier than the engine start time, the start time is any time between the current time and the engine start time. It can be understood that the magnitude of this moment can be milliseconds or less.

[0086] As another optional implementation, the starting power information is used to characterize starting the engine with the starting power alone or starting the engine with the starting power auxiliary battery. Step 203 includes: if the first power usage ratio is less than the second power usage ratio, determining the starting power information used to characterize starting the engine with the starting power auxiliary battery; if the first power usage ratio is greater than the second power usage ratio, determining the starting power information used to characterize starting the engine with the starting power alone; if the first power usage ratio is equal to the second power usage ratio, determining the starting power information according to the historical starting power usage power corresponding to the target historical battery power and the historical starting power usage power corresponding to the target historical starting power power.

[0087] In this embodiment, for the same situation as the above-mentioned embodiment, it can be directly determined whether the starting power source starts the engine alone or the starting power source assists the battery to start the engine.

[0088] That is, if the user is used less frequently, the starting power supply can be used as an auxiliary starting power supply; if the user is used more frequently, the starting power supply can be directly used alone.

[0089] In some embodiments, if the first power usage ratio is equal to the second power usage ratio, the startup power information is determined according to the historical startup power usage power corresponding to the target historical battery power and the historical startup power usage power corresponding to the target historical startup power power.

[0090] For example, if the historical starting power usage power corresponding to the target historical battery power and the historical starting power usage power corresponding to the target historical starting power power are both greater than or equal to the preset usage power, it is determined that the starting power starts the engine alone; otherwise, it is determined that the starting power assists the battery to start the engine.

[0091] Furthermore, in step 204, an engine starting control strategy is determined according to the engine information and the starting power supply information.

[0092] As an optional implementation, when the engine information includes the starting speed and the starting current, and the starting power supply information includes the starting power supply start time, step 204 includes: if the starting power supply start time is later than the engine starting time, determining the battery control strategy according to the starting speed and the starting current, and determining the starting power supply control strategy according to the starting power supply start time; if the starting power supply start time is earlier than or equal to the engine starting time, determining the battery control strategy according to the starting speed and the starting current, and determining the starting power supply control strategy according to the starting power supply start time and the battery control strategy.

[0093] In some embodiments, determining the startup power control strategy according to the startup power start-use time may include: controlling the startup power to start at the startup power start-use time.

[0094] In some embodiments, the battery control strategy is determined according to the starting speed and the starting current, including: converting the output power of the battery into an engine control signal that matches the starting speed and the starting current. It can be understood that when the starting speed and the starting current are known, the engine control signal can be adaptively generated, such as a pulse width modulation signal and a sine pulse. For specific information on how to generate the corresponding control signal according to the starting speed and the starting current, reference can be made to mature technologies in the art.

[0095] In some embodiments, the battery control strategy is determined based on the starting speed and the starting current, including: converting the output electric energy of the battery into an engine control signal that matches the starting speed and the starting current, and the starting speed and the starting current corresponding to the engine control signal can be smaller than the starting speed and the starting current of the previous embodiment. The starting power supply control strategy is determined based on the starting power supply start time and the battery control strategy, which can include: controlling the starting power supply to start at the starting power supply start time, and converting the output electric energy of the starting power supply into the engine control signal based on the starting speed and the starting current that can be achieved by the engine control signal in the battery control strategy. That is, the starting power supply and the battery jointly output electric energy to the engine to start the engine.

[0096] Regarding the implementation method of the starting power supply and the battery jointly outputting electrical energy to the engine, reference can also be made to the mature technology in the field, as long as it is ensured that the engine can finally achieve the starting speed and starting current.

[0097] As an optional implementation, when the engine information includes the starting speed and the starting current, and the starting power supply information is used to characterize that the starting power supply starts the engine alone or that the starting power supply assists the battery in starting the engine, step 204 includes: if the starting power supply information is used to characterize that the starting power supply starts the engine alone, determining the starting power supply control strategy according to the starting speed and the starting current, and determining the battery control strategy according to the starting power supply control strategy; if the starting power supply information is used to characterize that the starting power supply assists the battery in starting the engine, determining the battery control strategy and the starting power supply control strategy according to the starting speed and the starting current.

[0098] In some embodiments, the implementation method of determining the starting power supply control strategy according to the starting speed and the starting current can refer to the aforementioned implementation method of determining the battery control strategy according to the starting speed and the starting current, but the object is the starting power supply.

[0099] In some embodiments, determining the battery control strategy according to the starting power control strategy may include: controlling the battery to replace the starting power to output a corresponding control signal in the starting power control strategy when a problem occurs in the starting power. That is, in this case, the battery can be used as a backup engine starting power source to solve the problem in a timely manner when a problem occurs in the starting power source.

[0100] In some embodiments, determining the battery control strategy and the starting power supply control strategy based on the starting speed and the starting current may include: allocating between the battery and the starting power supply based on the starting speed and the starting current to determine the electric energy required to be provided by the battery and the electric energy required to be provided by the starting power supply. Thus, the battery control strategy is determined based on the electric energy required to be provided by the battery, and the starting power supply control strategy is determined based on the electric energy required to be provided by the starting power supply. Among them, the electric energy required to be provided by the battery is greater than the electric energy required to be provided by the starting power supply. Then, the battery and the starting power supply jointly control the engine to achieve the corresponding starting speed and starting current.

[0101] It can be understood that the above-mentioned output signal, or the corresponding control of the battery or the starting power supply is essentially to control the output current and voltage of the battery or the starting power supply. For details, please refer to the mature technology in the field and will not be introduced in detail here.

[0102] Furthermore, when executing the engine start control strategy, the battery control strategy can be synchronized to the engine drive system, and the start power control strategy can be synchronized to the intelligent control system of the start power, so that the engine drive system and the intelligent control system respectively perform corresponding control. It can be understood that the intelligent control system can communicate with the engine drive system to automatically adjust the output current and voltage to match the starting requirements of the car.

[0103] As an optional implementation, the method also includes: obtaining multiple engine start control strategies recorded between a historical time point and a current time point; determining the similarity between the multiple engine start control strategies and a currently executed engine start control strategy; based on the similarity, determining an evaluation result for characterizing the stability of the coordinated control of the vehicle starting power supply and the engine; and updating the engine usage habit model based on the evaluation result.

[0104] Among them, determining the similarity between multiple engine start control strategies and the currently executed engine start control strategy may include: determining the battery control strategy similarity between the multiple engine start control strategies and the currently executed engine start control strategy; determining the starting power supply control strategy similarity between the multiple engine start control strategies and the currently executed engine start control strategy; determining the similarity between the multiple engine start control strategies and the currently executed engine start control strategy based on the battery control strategy similarity and the starting power supply control strategy similarity.

[0105] In some embodiments, the battery control strategy similarity between multiple engine start control strategies and the currently executed engine start control strategy may be the battery control strategy similarity between the earliest engine start control strategy among the multiple engine start control strategies and the currently executed engine start control strategy. The starting power supply control strategy similarity between multiple engine start control strategies and the currently executed engine start control strategy may be the starting power supply control strategy similarity between the earliest engine start control strategy among the multiple engine start control strategies and the currently executed engine start control strategy.

[0106] In some embodiments, the battery control strategy similarity may be the similarity of the output current and output voltage of the battery, and the similarity may be determined based on the current difference and the voltage difference. For example, the larger the difference, the smaller the similarity. The starting power supply control strategy similarity may be the similarity of the output current and output voltage of the starting power supply, and the similarity may also be determined based on the current difference and the voltage difference. If the starting power supply does not participate in the engine starting, the output current and output voltage of the starting power supply may be considered as 0.

[0107] In some embodiments, the final similarity may be a weighted sum of the battery control strategy similarity and the startup power control strategy similarity, wherein the weight of the battery control strategy similarity is less than the startup power control strategy similarity.

[0108] Further, according to the similarity, determining the evaluation result for characterizing the stability of the coordinated control of the automobile starting power supply and the engine may include: searching for the stability evaluation result corresponding to the current similarity according to the correspondence between the preset similarity range and the stability evaluation result. The stability evaluation result may be the stability. And, the higher the similarity, the higher the stability.

[0109] Therefore, if the evaluation result indicates good stability, the engine usage habit model does not need to be updated. If the evaluation result indicates poor stability, the engine usage habit model needs to be updated. The update at this time can be to update the model with new data or to adjust the model parameters.

[0110] Figure 4 1 is a block diagram of a vehicle starting power supply and engine coordinated control device according to an exemplary embodiment. Figure 4 , the device comprises:

[0111] The acquisition module 401 is used to acquire the vehicle start signal, the battery power, the start power supply power and the historical usage information, wherein the historical usage information is used to characterize the battery usage and the start power supply usage between the historical time point and the current time point, wherein the historical time point is the time point when the battery last finished charging;

[0112] The control module 402 is used to determine the engine information that matches the user's engine usage habits based on the car start signal and the engine usage habit model; determine the starting power supply information that matches the user's starting power supply usage habits based on the battery power, the starting power supply power and the historical usage information; determine the engine start control strategy based on the engine information and the starting power supply information, and execute the engine start control strategy, wherein the engine start control strategy includes a battery control strategy and a starting power supply control strategy.

[0113] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0114] The present disclosure also provides a computer-readable storage medium having computer program instructions stored thereon. When the program instructions are executed by a processor, the steps of the method for coordinated control of a vehicle starting power supply and an engine provided by the present disclosure are implemented.

[0115] Figure 5is a block diagram of a car 500 according to an exemplary embodiment. For example, the car 500 may be a hybrid car, a non-hybrid car, an electric car, a fuel cell car, or other types of cars. The car 500 may be an autonomous car, a semi-autonomous car, or a non-autonomous car.

[0116] Reference Figure 5 , the automobile 500 may include various subsystems, for example, an infotainment system 510, a perception system 520, a decision control system 530, a drive system 540, and a computing platform 550. The automobile 500 may also include more or fewer subsystems, and each subsystem may include multiple components. In addition, each subsystem and each component of the automobile 500 may be interconnected by wire or wireless means.

[0117] In some embodiments, the infotainment system 510 may include a communication system, an entertainment system, and a navigation system, among others.

[0118] The perception system 520 may include several sensors for sensing information about the environment around the automobile 500. For example, the perception system 520 may include a global positioning system (the global positioning system may be a GPS system, or a Beidou system or other positioning systems), an inertial measurement unit (IMU), a laser radar, a millimeter wave radar, an ultrasonic radar, and a camera.

[0119] The decision control system 530 may include a computing system, a vehicle controller, a steering system, a throttle, and a braking system.

[0120] The drive system 540 may include components that provide power movement for the automobile 500. In one embodiment, the drive system 540 may include an engine, an energy source, a transmission system, and wheels. The engine may be one or a combination of an internal combustion engine, an electric motor, and an air compression engine. The engine can convert the energy provided by the energy source into mechanical energy.

[0121] Some or all functions of the automobile 500 are controlled by a computing platform 550. The computing platform 550 may include at least one processor 551 and a memory 552, and the processor 551 may execute instructions 553 stored in the memory 552.

[0122] The processor 551 may be any conventional processor, such as a commercially available CPU. The processor may also include a graphics processor (Graphic Process Unit, GPU), a field programmable gate array (Field Programmable Gate Array, FPGA), a system on chip (System on Chip, SOC), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC) or a combination thereof.

[0123] The memory 552 may be implemented by any type of volatile or nonvolatile memory device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0124] In addition to instructions 553 , memory 552 may also store data, such as road maps, route information, and data on the location, direction, speed, etc. of the vehicle. The data stored in memory 552 may be used by computing platform 550 .

[0125] In the disclosed embodiment, the processor 551 may execute instruction 553 to complete all or part of the steps of the above-mentioned method for coordinated control of the vehicle starting power supply and the engine.

[0126] In addition, the word "exemplary" is used herein to indicate serving as an example, instance, or diagram. Any aspect or design described as "exemplary" in this article is not necessarily understood to be advantageous compared to other aspects or designs. On the contrary, the use of the word exemplary is intended to present concepts in a specific way. As used herein, the term "or" is intended to represent an inclusive "or" rather than an exclusive "or". That is, unless otherwise specified or clear from the context, "X applies A or B" is intended to represent any one of the natural inclusive arrangements. That is, if X applies A; X applies B; or X applies both A and B, "X applies A or B" is satisfied under any of the aforementioned examples. In addition, unless otherwise specified or clearly pointed to a singular form from the context, the articles "one" and "an" as used in this application and the appended claims are generally understood to mean "one or more".

[0127] Likewise, although the present disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art after reading and understanding the specification and drawings. The present disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components (e.g., elements, resources, etc.) described above, unless otherwise indicated, the terms used to describe such components are intended to correspond to any component (functionally equivalent) that performs the specific functions of the described components, even if the structure is not equivalent to the disclosed structure. In addition, although specific features of the present disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations as may be desired and beneficial to any given or specific application. In addition, with respect to "including", "having", "having", "having", or variations thereof used in a specific embodiment or claim, such terms are intended to be inclusive in a manner similar to the term "comprising".

[0128] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0129] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method for coordinated control of a vehicle starting power supply and an engine, characterized in that: include: Obtaining a vehicle start signal, battery power, starting power supply power, and historical usage information, wherein the historical usage information is used to characterize battery usage and starting power supply usage between a historical time point and a current time point, wherein the historical time point is the time point when the battery last finished charging; Determining engine information matching the user's engine usage habits according to the vehicle start signal and the engine usage habit model; Determining starting power source information matching the starting power source usage habits of the user according to the battery power, the starting power source power and the historical usage information; Determine an engine start control strategy according to the engine information and the starting power supply information, and execute the engine start control strategy, wherein the engine start control strategy includes a battery control strategy and a starting power supply control strategy; The determining, based on the automobile start signal and the engine usage habit model, engine information matching the user's engine usage habit comprises: Determining the percentage of vehicle power-on according to the vehicle start signal; Obtaining a preset vehicle power-on percentage, where the preset vehicle power-on percentage is a vehicle power-on percentage determined according to a historical vehicle power-on percentage; Determining a difference between the vehicle power-on percentage and the preset vehicle power-on percentage; Determine the weight of the percentage of power on of the vehicle according to the difference; Inputting the vehicle power-on percentage and the weight of the vehicle power-on percentage into the engine usage habit model to obtain engine information output by the engine usage habit model; The historical usage information includes: historical usage information corresponding to the target automobile subsystem, the historical usage information includes: historical battery power, historical starting power supply power, historical battery usage power and historical starting power supply usage power with corresponding relationships, and the starting power supply information matching the starting power supply usage habit of the user is determined according to the battery power, the starting power supply power and the historical usage information: Determining a target historical battery power that matches the battery power from the historical usage information; Determining a target historical startup power supply quantity that matches the startup power supply quantity from the historical usage information; Determine a first power usage ratio between the historical battery power usage corresponding to the target historical battery power and the historical starting power supply power usage; Determine a second power usage ratio between the historical battery usage power corresponding to the target historical startup power supply power and the historical startup power supply usage power; The startup power source information is determined according to the first power usage ratio and the second power usage ratio.

2. The method for coordinated control of a vehicle starting power supply and an engine according to claim 1, characterized in that: The automobile starting power supply and engine coordinated control method further includes: Acquire a preset engine usage habit model, wherein the preset engine usage habit model is obtained by training a first training data set, wherein the first training data set is a training data set generated based on big data, wherein the big data includes a plurality of automobile engine start information and automobile power-on percentages corresponding to the plurality of automobile engine start information; generating a second training data set according to historical engine start information and the percentage of vehicle power-on corresponding to the historical engine start information; generating a target training data set according to the first training data set and the second training data set, wherein the proportion of data belonging to the first training data set and the proportion of data belonging to the second training data set in the target training data set are associated with the amount of data in the second training data set; The preset engine usage habit model is updated and trained according to the target training data set to obtain the engine usage habit model.

3. The method for coordinated control of a vehicle starting power supply and an engine according to claim 1, characterized in that: The startup power supply information includes: the startup power supply start time, and the determining the startup power supply information according to the first power usage ratio and the second power usage ratio includes: If the first power usage ratio is less than the second power usage ratio, determining that the starting power source starts to be used later than the engine start time; If the first power usage ratio is greater than the second power usage ratio, determining that the starting power source starts to be used earlier than or equal to the engine starting time; If the first power usage ratio is equal to the second power usage ratio, the startup power start use time is determined according to the historical startup power usage power corresponding to the target historical battery power or the historical startup power usage power corresponding to the target historical startup power power.

4. The method for coordinated control of a vehicle starting power supply and an engine according to claim 1, characterized in that: The starting power source information is used to indicate whether the starting power source starts the engine alone or the starting power source assists the battery in starting the engine. The starting power source information is determined according to the first power usage ratio and the second power usage ratio, including: If the first power usage ratio is less than the second power usage ratio, determining starting power information for indicating that the starting power auxiliary battery starts the engine; If the first power usage ratio is greater than the second power usage ratio, determining starting power source information for indicating that the starting power source starts the engine alone; If the first power usage ratio is equal to the second power usage ratio, the startup power information is determined according to the historical startup power usage power corresponding to the target historical battery power and the historical startup power usage power corresponding to the target historical startup power power.

5. The method for coordinated control of a vehicle starting power supply and an engine according to claim 1, characterized in that: The engine information includes a starting speed and a starting current, and the starting power supply information includes a starting power supply start time. The engine starting control strategy is determined according to the engine information and the starting power supply information, including: If the starting power supply starts to be used later than the engine start time, the battery control strategy is determined according to the starting speed and the starting current, and the starting power supply control strategy is determined according to the starting power supply starts to be used; If the starting power supply start time is earlier than or equal to the engine start time, the battery control strategy is determined according to the starting speed and the starting current, and the starting power supply control strategy is determined according to the starting power supply start time and the battery control strategy.

6. The method for coordinated control of a vehicle starting power supply and an engine according to claim 1, characterized in that: The engine information includes a starting speed and a starting current, and the starting power supply information is used to indicate whether the starting power supply starts the engine alone or the starting power supply assists a battery in starting the engine. The engine starting control strategy is determined according to the engine information and the starting power supply information, including: If the starting power source information is used to indicate that the starting power source starts the engine alone, the starting power source control strategy is determined according to the starting speed and the starting current, and the battery control strategy is determined according to the starting power source control strategy; If the starting power source information is used to indicate that the starting power source assists the battery in starting the engine, the battery control strategy and the starting power source control strategy are determined according to the starting speed and the starting current.

7. The method for coordinated control of a vehicle starting power supply and an engine according to claim 1, characterized in that: The automobile starting power supply and engine coordinated control method further includes: Acquire multiple engine start control strategies recorded between the historical time point and the current time point; Determining similarities between the multiple engine start control strategies and the currently executed engine start control strategy; Determining, based on the similarity, an evaluation result for characterizing the stability of coordinated control of a vehicle starting power source and an engine; The engine usage habit model is updated according to the evaluation result.

8. The method for coordinated control of a vehicle starting power supply and an engine according to claim 7, characterized in that: The determining of the similarity between the multiple engine start control strategies and the currently executed engine start control strategy includes: Determining a battery control strategy similarity between the multiple engine start control strategies and the currently executed engine start control strategy; Determining a starting power supply control strategy similarity between the multiple engine starting control strategies and the currently executed engine starting control strategy; The similarity between the multiple engine start control strategies and the currently executed engine start control strategy is determined according to the battery control strategy similarity and the starting power supply control strategy similarity.

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