Preheating method and device for extended-range vehicle, electronic equipment and medium

Abstract

The invention relates to the technical field of electric vehicles, and provides a preheating method and device for an extended-range vehicle, electronic equipment and a medium. The method comprises the steps of obtaining a target starting moment of a target vehicle; the pre-preheating temperature and the pre-preheating charge state are obtained; based on the pre-preheating temperature and the pre-preheating charge state, the heating duration is determined, and the operating parameters and the charging duration of the range extender are determined; based on the target starting moment, the heating duration and the charging duration, determining a heating starting moment and a charging starting moment; when the charging start time is up, the range extender is controlled to charge the power battery according to the operation parameters; and the preheating device is controlled to execute preheating operation under the cooperation of the range extender until the heating starting moment is reached. Humanized preheating management provides a user with worry-free vehicle use experience, the heating energy consumption of preheating operation is obviously reduced, and the economical efficiency is good.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicles, and in particular to a preheating method, device, electronic equipment and medium for an extended-range vehicle. Background Art

[0002] When a car is parked outdoors, the vehicle's condition will be affected by temperature. In extremely low temperatures, varying degrees of ice and snow will appear on the vehicle's windshield, and the cabin temperature will continue to drop. If it is an electric car, the discharge capacity of the power battery installed in the car will also be affected by temperature. Too low a temperature will cause the battery discharge to decrease.

[0003] In order to eliminate the impact of low temperature environment, users need to start the vehicle in advance to preheat before using the car. Preheating at least includes turning on the air conditioning defrost function to melt ice and snow, and also includes heating the interior of the cabin and raising the power battery to a suitable temperature. The preheating operation must be triggered by the user. For example, the user starts the vehicle after arriving at the parking point to trigger the preheating operation, or the user remotely controls the preheating operation. This triggering requires the user to have strong planning capabilities. If the user fails to trigger the preheating operation in time, it will affect the subsequent itinerary. If the user triggers the preheating operation too early, it will cause a waste of heating energy. In addition, remote control has certain requirements for hardware. If the network is poor, the preheating operation may not be triggered. Therefore, the current user experience of the preheating operation is poor.

[0004] In addition, whether it is a fuel vehicle or an electric vehicle, the preheating operation needs to be achieved through fuel or electricity consumption. The heating energy consumption of the car is high and the economy is poor, especially in areas with lower temperatures, the energy consumption required for the preheating operation is quite high.

[0005] Therefore, how to provide a solution to the above technical problems is a problem that those skilled in the art need to solve. Summary of the invention

[0006] In view of this, the embodiments of the present application provide a preheating method, device, electronic device and medium for an extended-range vehicle to solve the problems of high heating energy consumption and poor user experience in the preheating operation in the prior art.

[0007] According to a first aspect of an embodiment of the present application, a method for preheating a range-extended vehicle is provided, comprising:

[0008] Obtaining a target start time of a target vehicle;

[0009] Obtain the real-time temperature of the cabin of the target vehicle before preheating, and obtain the state of charge of the power battery of the target vehicle before preheating;

[0010] Based on the pre-preheating temperature and the pre-preheating state of charge, determine the heating time of the preheating device of the target vehicle, and determine the operating parameters and charging time of the range extender of the target vehicle;

[0011] Determining a heating start time and a charging start time based on the target start time, the heating time, and the charging time;

[0012] Wait until the charging starts, and control the range extender to charge the power battery according to the operating parameters;

[0013] Wait until the heating starts, and control the preheating device to perform the preheating operation in coordination with the range extender.

[0014] A second aspect of an embodiment of the present application provides a preheating device for an extended-range vehicle, comprising:

[0015] A first acquisition module is used to acquire a target start time of a target vehicle;

[0016] A second acquisition module is used to acquire the pre-preheating temperature of the target vehicle and the pre-preheating state of charge of the power battery of the target vehicle;

[0017] An analysis module, for determining a heating time of a preheating device of a target vehicle based on a preheating temperature and a preheating state of charge, and determining operating parameters and a charging time of a range extender of the target vehicle;

[0018] The analysis module is further used to determine the heating start time and the charging start time based on the target start time, the heating time and the charging time;

[0019] A control module, used to wait until charging starts and control the range extender to charge the power battery according to the operating parameters;

[0020] The control module is also used to wait until the heating starts, and control the preheating device to perform the preheating operation in coordination with the range extender.

[0021] According to a third aspect of an embodiment of the present application, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0022] According to a fourth aspect of an embodiment of the present application, a computer-readable storage medium is provided, which stores a computer program, and when the computer program is executed by a processor, the steps of the above method are implemented.

[0023] Compared with the prior art, the beneficial effects of the embodiments of the present application include at least the following: the embodiments of the present application obtain the target start time of the target vehicle in advance, determine the charging start time of the range extender charging the power battery, and the heating start time of the preheating device performing the preheating operation in cooperation with the range extender according to the preheating temperature and the preheating state of charge, and act based on the charging start time and the heating start time, so that at the target start time, the range extender completes the charging of the power battery while the preheating operation is completed. There is no need for the user to plan the trigger time of the preheating operation and trigger it manually. As long as the user sets the target start time for the next use of the vehicle in advance, the preheating operation before the target start time can be automatically planned and executed. The humanized preheating management brings the user a worry-free car experience. At the same time, in the present application, the heat generated by the charging of the range extender is used for the preheating device to perform the preheating operation, and the heating energy consumption of the preheating operation is significantly reduced, and the economy is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a schematic diagram of an application scenario of an embodiment of the present application;

[0026] Figure 2 It is a schematic flow chart of a preheating method for a range-extended vehicle provided in an embodiment of the present application;

[0027] Figure 3 is a structural diagram of a target vehicle provided in an embodiment of the present application;

[0028] Figure 4 It is a structural schematic diagram of a preheating device for an extended-range vehicle provided in an embodiment of the present application;

[0029] Figure 5 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0031] A preheating method, device, electronic device and medium for an extended-range vehicle according to an embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0032] In order to eliminate the impact of low temperature environment on the use of automobiles, the car needs to be preheated before use. The preheating operation includes defrosting the windshield, increasing the temperature in the cabin, and increasing the temperature of the power battery. Conventional preheating operations must be triggered by users, such as the user manually starting the vehicle to trigger the preheating operation after actively reaching the parking point, or the user triggering the preheating operation through remote control. The triggering of this preheating operation requires the user to have relatively strong planning capabilities and sufficient understanding of the vehicle preheating function. Otherwise, the user may fail to trigger the preheating operation in time, affecting the subsequent itinerary, or the user may trigger the preheating operation too early, resulting in a waste of heating energy. In addition, remote control has certain requirements for hardware. If the network is poor, the preheating operation may not be triggered. The user experience is poor. In addition, the preheating operation of current fuel vehicles and electric vehicles needs to be achieved through fuel or electricity consumption, with high heating energy consumption and poor economy.

[0033] To this end, the preheating operation of this embodiment is performed by the preheating device in cooperation with the range extender. The range extender generates heat when charging the power battery. The preheating device uses the heat energy generated by the range extender to perform the preheating operation. The required heating energy consumption is significantly reduced, thereby achieving a highly economical preheating operation.

[0034] In order to solve the problem of poor user experience, the preheating operation in this embodiment does not need to be triggered by the user. The user only needs to set the next time the car is used, that is, the target start time. This embodiment will automatically plan and control the operation of the preheating device and the range extender according to the target start time and the specific situation of the vehicle, so as to complete the preheating operation between the target start times and realize humanized preheating management. The user does not need to plan and immediately trigger the preheating operation, which saves user energy and creates a more comfortable user experience.

[0035] Figure 1 1 is a schematic diagram of an application scenario of an embodiment of the present application. The application scenario may include a first terminal device 101, a second terminal device 102, a third terminal device 103, a server 104 and a network 105.

[0036] The first terminal device 101, the second terminal device 102, and the third terminal device 103 can be hardware or software. When the first terminal device 101, the second terminal device 102, and the third terminal device 103 are hardware, they can be various electronic devices with display screens and support communication with the server 104, including but not limited to vehicle systems, smart phones, tablet computers, laptop portable computers, and desktop computers; when the first terminal device 101, the second terminal device 102, and the third terminal device 103 are software, they can be installed in the above electronic devices. The first terminal device 101, the second terminal device 102, and the third terminal device 103 can be implemented as multiple software or software modules, or as a single software or software module, which is not limited in the embodiment of the present application. Further, various applications can be installed on the first terminal device 101, the second terminal device 102, and the third terminal device 103, such as data processing applications, instant messaging tools, social platform software, search applications, shopping applications, etc.

[0037] The server 104 may be a server that provides various services, for example, a background server that receives a request sent by a terminal device that establishes a communication connection with the server, and the background server may receive and analyze the request sent by the terminal device, and generate a processing result. The server 104 may be a single server, or a server cluster composed of several servers, or a cloud computing service center, which is not limited in the present embodiment of the application.

[0038] It should be noted that the server 104 can be hardware or software. When the server 104 is hardware, it can be various electronic devices that provide various services for the first terminal device 101, the second terminal device 102, and the third terminal device 103. When the server 104 is software, it can be multiple software or software modules that provide various services for the first terminal device 101, the second terminal device 102, and the third terminal device 103, or it can be a single software or software module that provides various services for the first terminal device 101, the second terminal device 102, and the third terminal device 103, and the embodiment of the present application does not limit this.

[0039] The network 105 can be a wired network connected by coaxial cable, twisted pair and optical fiber, or it can be a wireless network that can interconnect various communication devices without wiring, such as Bluetooth, Near Field Communication (NFC), infrared, etc., which is not limited in the embodiments of the present application.

[0040] It should be noted that the specific types, quantities and combinations of the first terminal device 101, the second terminal device 102, the third terminal device 103, the server 104 and the network 105 can be adjusted according to the actual needs of the application scenario, and the embodiments of the present application do not limit this.

[0041] Figure 2 It is a flow chart of a preheating method for an extended-range vehicle provided in an embodiment of the present application. Figure 2 The preheating method can be Figure 1 The first terminal device or the second terminal device or the third terminal device or the server executes. Figure 2 The preheating method is applied to any extended-range vehicle, and any extended-range vehicle can be used as the target vehicle to execute the method. The structure diagram of the target vehicle can be shown as Figure 3 As shown, the target vehicle includes a power battery, a range extender, and a preheating device.

[0042] Specifically, Figure 2 As shown, the preheating method of the extended-range vehicle includes:

[0043] S201: Obtaining a target start time of a target vehicle;

[0044] S202: Acquire the pre-preheating temperature of the target vehicle, and acquire the pre-preheating state of charge of the power battery of the target vehicle;

[0045] S203: Determine the heating time of the preheating device of the target vehicle based on the preheating temperature and the preheating state of charge, and determine the operating parameters and charging time of the range extender of the target vehicle;

[0046] S204: Determine a heating start time and a charging start time based on the target start time, the heating duration, and the charging duration;

[0047] S205: Wait until charging starts, and control the range extender to charge the power battery according to the operating parameters;

[0048] S206: Wait until the heating starts, and control the preheating device to perform the preheating operation in coordination with the range extender.

[0049] It can be understood that the preheating operation performed by the preheating device of the extended-range vehicle in this embodiment includes at least one of heating the interior of the cabin, defrosting the front windshield of the cabin, and heating the power battery. The corresponding operation function can be selected and the corresponding preheating device can be configured according to the actual situation and user needs, such as a heat pump air conditioner, an electric heater, etc. Figure 3As shown, when the preheating device performs the preheating operation in cooperation with the range extender, it actually reuses the heat generated by the range extender when charging the power battery during the preheating operation. The reuse can be achieved through the circulating water system in the target vehicle. In the process of the range extender charging the power battery, the circulating water system absorbs the heat of the range extender to cool the range extender. The temperature of the circulating water in the circulating water system increases, and the preheating device can use the circulating water with increased temperature to perform the preheating operation. Since the preheating operation is supported by the thermal energy of the range extender when it is working, the heating energy consumption is reduced.

[0050] Specifically, after obtaining the target start time, this embodiment will determine the heating time of the preheating device in cooperation with the range extender according to the pre-preheating temperature of the target vehicle, determine the operating parameters and charging time of the range extender according to the pre-preheating state of charge of the power battery, control the range extender to charge the power battery according to the operating parameters and charging time, and control the preheating device to work according to the heating time, so that when the target start time is reached, the range extender has completed charging the power battery and the preheating device has completed the preheating operation. The purpose of setting the relationship between the charging time and the heating time is also to ensure that the preheating operation of the preheating device can be supported by the range extender in cooperation.

[0051] It is understandable that the user can determine to turn on or off the preheating function through user instructions, and turning on the preheating function also enables the method of this embodiment. In this embodiment, the target start time is determined based on the same user instruction. The user instruction here can be sent by the user to the execution subject of the method of this embodiment through the human-computer interaction device in the target vehicle, or can be sent by the user remotely to the execution subject of the method of this embodiment through a mobile terminal, without specific limitation.

[0052] It is understood that the target start time refers to the time when the user uses the target vehicle next time, which is used as the basis for enabling the subsequent preheating operation. This time is similar to the alarm time. The user can customize the specific time and the number of repetitions, where the specific time can be a certain time of a certain day or a certain time of every day. The number of repetitions can be set to enable only once, or can be set to enable once under specific conditions. The specific conditions can be every day, working days, weekends or other special dates. The specific target start time can be set according to user needs and is not limited here. It is understood that if the target start time is not obtained, it is not necessary to execute the method of this embodiment.

[0053] After obtaining the effective target start time in step S201, step S202 can be executed. It can be understood that the effect of the method of this embodiment is that when it is known that the user will use the target car at the target start time, the target vehicle in the parked state is preheated and charged, so that the target car has completed preheating and charging at the target start time, and is in a comfortable use state, and the user can directly use the target car. Therefore, steps S202-S206 all occur when the target car is in a parked state, and the real-time temperature of the target vehicle in the parked state will change with the external environment, and the real-time state of charge of the power battery may change because it is necessary to power the components that still need to work in the parked state. If the real-time temperature and real-time state of charge at a certain moment are directly used as the pre-preheating temperature and pre-preheating state of charge, as time changes, once the real-time temperature and real-time state of charge change, the specific parameters of subsequent preheating and charging will also change. To ensure that the final preheating operation time is accurate and efficient, steps S202-S206 can be repeated according to a certain time cycle. In fact, if the corresponding moment is not reached, steps S205-S206 will not be executed. Therefore, the cycle loop is essentially a loop operation of steps S202-S204 until the charging start time is in the current time cycle. Alternatively, in order to reduce the calculation efficiency of this embodiment, a time point before the target start time can be set, and steps S202-S206 are only executed at this time point, and steps S202-S206 are no longer looped. It is considered that the time from this time point to the target start time is short, and the real-time temperature and real-time state of charge remain unchanged and can be directly used as the pre-preheating temperature and pre-preheating state of charge, and the specific parameters of the subsequent actions do not change. This time point can be determined based on historical data and the parameters of each device in the target vehicle, no later than the corresponding charging start time, and the distance time from the target start time should not be less than the corresponding charging time and heating time.

[0054] In some specific embodiments, the heating time may include: the time taken for the target vehicle to rise from a pre-preheating temperature to a target temperature when the preheating device is controlled to perform a preheating operation in coordination with the range extender;

[0055] The charging time may include: the time taken for the range extender to increase the charge state to the target charge state before preheating when charging the power battery according to the operating parameters; the charging time shall not be less than the minimum charging time corresponding to the heating time; the minimum charging time is the difference between the heating time and the preset waiting time.

[0056] It can be understood that the heating time refers to the execution time of the preheating device in the collaborative mode to perform the preheating operation. In the collaborative mode, the preheating device performs the preheating operation based on the cooperation of the range extender and the use of the heat energy of the range extender. The effects of the preheating operation include heating the cabin of the target vehicle, defrosting the windshield, heating the power battery, etc. Among them, the temperature change is the easiest to observe, so the temperature is used as the main basis for the heating time, that is, the heating time is the time taken for the target vehicle to rise from the pre-preheating temperature to the target temperature during the preheating operation. Here, the temperature is usually the temperature of a certain part of the target vehicle, and the specific part can be the cabin, power battery or other parts that will be affected by the preheating operation.

[0057] Usually, the circulating water system assists in this collaborative mode. Since the circulating water system is equipped with a temperature protection mechanism, the circulating water temperature is maintained in the same stable range under various operating conditions of the range extender. Therefore, the heating efficiency of the preheating device remains stable in the collaborative mode. Based on the temperature rise model and heating efficiency of the target vehicle, the heating time required to heat up from the pre-preheating temperature to the target temperature can be determined. The temperature rise model is related to the physical parameters of the windshield, the internal space parameters of the cabin, etc. Since the relationship between the heating time, the pre-preheating temperature and the target temperature is determined by the temperature rise model and the heating efficiency, the heating time and target temperature corresponding to the pre-preheating temperature can be set and selected according to actual conditions or user needs.

[0058] For example, first determine the corresponding target temperature according to the pre-preheating temperature, and then determine the corresponding heating time according to the target temperature. Among them, the target temperature may not change with the pre-preheating temperature, and be set to a fixed temperature value, such as 0°, 16° or other temperature values ​​that are more comfortable for the human body; the target temperature may also change with the pre-preheating temperature, and the target temperature is usually positively correlated with the pre-preheating temperature. At this time, when the pre-preheating temperature is low, the corresponding target temperature is also low. Due to the strong adaptability of the human body, all target temperatures can fall within a wider range, as long as they are a certain amount higher than the real-time temperature. A high difference between the pre-preheating temperature and the target temperature may also cause discomfort to the human body. Therefore, when determining the corresponding target temperature according to the pre-preheating temperature, it can be based on the positive correlation between the two temperatures. The positive correlation can be expressed as a step shape, that is, the pre-preheating temperature determines the corresponding target temperature according to the corresponding different intervals, and the pre-preheating temperature in the same interval corresponds to the same target temperature. For example, the pre-preheating temperature partitions may include: (-60, -35], (-35, -25], (-25, -15], (-15, -5], (-5, 15], and the corresponding target temperatures may include -10, -5, 0, 10, 20, respectively, where the unit of each temperature value is degrees Celsius. The specific correspondence between the target temperature and the pre-preheating temperature and the parameter value can be set according to the actual situation and user needs, and there is no limitation here.

[0059] For another example, the corresponding heating time is directly determined according to the pre-preheating temperature, and the heating time must correspond to a target temperature. It can be understood that the heating time is generally negatively correlated with the pre-preheating temperature. The lower the pre-preheating temperature, the longer the required heating time. It should be noted that the target temperature is usually not a constant value at this time. Under the influence of different pre-preheating temperatures and heating times, the specific temperature value of the target temperature is different. This is to take into account that the human body has a certain adaptability to temperature. It is not necessary to heat the target vehicle to a specific value too accurately, as long as it is a temperature value that is more comfortable relative to the outdoor environment. When the pre-preheating temperatures are similar, the corresponding heating times are similar, and the corresponding target temperatures are usually similar. Specifically, the negative correlation between the heating time and the pre-preheating temperature can also be expressed as a step type, that is, the pre-preheating temperature determines the corresponding heating time according to the corresponding different intervals, and the pre-preheating temperature in the same interval corresponds to the same heating time. For example, the pre-preheating temperature partitions may include: (-60, -35], (-35, -25], (-25, -15], (-15, -5], (-5, 15], in degrees Celsius, and the corresponding heating times may include 30min, 20min, 15min, 10min and 5min respectively. The specific correspondence between the target temperature and the heating time and the parameter value can be set according to the actual situation and user needs, and there is no limitation here.

[0060] Specifically, the charging time corresponds to the working state of the range extender charging the power battery. When the range extender is in the working state, the circulating water system can absorb the heat of the range extender and provide it to the preheating device such as the heat pump air conditioner in the form of circulating water for preheating operation. After the range extender stops charging the power battery, the temperature of the circulating water in the circulating water system can be maintained for a short period of time, that is, the preheating waiting time. During this period of time, the preheating device can also perform preheating operation based on the coordination of the circulating water system and the range extender. Therefore, when setting the charging time, this embodiment requires that the sum of the charging time and the preset waiting time is not less than the heating time. If the difference between the heating time and the preset waiting time is recorded as the minimum charging time, this requirement can be converted into: the charging time is not less than the minimum charging time corresponding to the heating time.

[0061] It is understandable that, in addition to the restriction on charging time in this embodiment, the range extender itself has charging constraints, that is, the range extender cannot charge the power battery indefinitely, and the range extender can only charge the power battery's state of charge (State of Charge, SOC) from less than the target state of charge to the target state of charge, and the target state of charge is up to 100%. In the process of charging from the pre-preheating state of charge to the target state of charge, the length of the charging time is determined by the operating parameters of the range extender. The operating parameters of the range extender include torque and speed, which can be set according to actual needs and operated according to corresponding working conditions. Usually, the range extender has a set of operating parameters at an optimal efficiency point, which is called the optimal operating parameter. The optimal efficiency point can also be called the highest point of oil-to-electricity conversion rate or the optimal point of economy. When operating at the optimal operating parameters, the range extender has the highest oil-to-electricity conversion rate and the charging speed is usually the fastest, so the time taken to charge the power battery to the target state of charge is also the shortest. According to the present embodiment, the charging time meets the requirement of being not less than the minimum charging time, and the operating parameters of the range extender can be adjusted accordingly so that the range extender operating according to the operating parameters can meet the charging time requirement.

[0062] Specifically, after determining the charging time and the heating time, determine the heating start time and the charging start time. The heating start time is the time when the preheating device is controlled to start the preheating operation. The execution time of the preheating operation is the heating time. After the heating time, the target start time is reached, and the real-time temperature reaches the target temperature, and the preheating operation is completed. In the preheating process corresponding to the heating time, the preheating operation must be started in coordination with the range extender. Therefore, the range extender should be started before the heating start time, that is, the charging start time corresponding to the range extender starting charging should not be later than the heating start time; at the same time, the ultimate goal of the range extender's charging action is to increase the real-time charge state to the target charge state at the target start time. Therefore, before the target start time, the execution time of the charging action should be the charging time mentioned above. The time that is ahead of the target start time by the charging time is recorded as the theoretical charging time. In order to ensure that the ultimate goal of the charging action can be achieved, the charging start time of the range extender starting charging should not be later than the theoretical charging time. Therefore, in some specific embodiments, the heating start time is earlier than the target start time by the heating time length; the charging start time is not later than the heating start time, and the charging start time is not later than the theoretical charging time, and the theoretical charging time is earlier than the target start time by the charging time length.

[0063] After determining the charging start time and the heating start time, the range extender is controlled to charge the power battery according to the operating parameters at the charging start time until the charge state of the power battery before preheating rises to the target charge state. The time consumed in the entire charging process is theoretically the charging time. Considering that the target charge state is the ultimate goal of charging, and the actual time consumed in the charging process is likely to be affected by the actual working conditions, there is a slight difference from the charging time. Therefore, in this embodiment, after the range extender is started to charge the power battery from the charging start time, reaching the target charge state can be used as a judgment condition for stopping the charging action.

[0064] Furthermore, at the start of heating, the preheating device is controlled to perform a preheating operation in coordination with the range extender until the preheating temperature rises to the target temperature. The preheating operation includes at least one of heating the interior of the cabin, defrosting the front windshield of the cabin, and heating the power battery, which can be set according to actual conditions and user needs. The time consumed in the preheating operation is theoretically the heating time, and the preheating effect is the real-time temperature rising to the target temperature. As shown above, since there is a specific correspondence between the preheating temperature and the heating time and the target temperature, the correspondence is not absolutely strict. Therefore, one parameter can be selected from the heating time and the target temperature as the judgment condition for stopping the preheating operation. When one of the parameters satisfies the preheating completion, the other parameter usually also satisfies the effect of preheating completion.

[0065] The method of the embodiment of the present application obtains the target start time of the target vehicle in advance, determines the charging start time of the range extender charging the power battery, the heating start time of the preheating device performing the preheating operation in cooperation with the range extender according to the preheating temperature and the preheating state of charge before preheating, and starts the range extender to charge the power battery based on the charging start time, and starts the preheating device to perform the preheating operation based on the heating start time, so that at the target start time, the range extender completes the charging of the power battery at the same time as the preheating operation is completed. There is no need for the user to plan the trigger time of the preheating operation and trigger it manually. As long as the user sets the target start time of the next use of the vehicle in advance, the preheating operation before the target start time can be automatically planned and executed. The humanized preheating management brings the user a worry-free car experience. At the same time, in the present application, the heat generated by the charging of the range extender is used for the preheating device to perform the preheating operation, and the heating energy consumption of the preheating operation is significantly reduced, and the economy is better.

[0066] It is understandable that, considering that the real-time temperature and real-time state of charge will change with the change of time when the vehicle is parked, the real-time temperature and real-time state of charge obtained too early as the pre-preheating temperature and pre-preheating state of charge cannot effectively reflect the state of the target vehicle when approaching the target start time. Therefore, the real-time temperature and real-time state of charge can be cyclically obtained according to a certain time period as the pre-preheating temperature and pre-preheating state of charge and subsequent calculations can be performed until the calculated charging start time is within the current time period. Only then can the charging start time and the heating start time be considered valid, and corresponding actions are performed according to the charging start time and the heating start time. In addition, the real-time temperature and real-time state of charge can be obtained only once when approaching the target start time, and then the charging start time and the heating start time are calculated. The real-time state will not change in a short time, so the charging start time and the heating start time are directly considered to be valid, and the corresponding actions can be performed. At this time, in some embodiments, after obtaining the target start time of the target vehicle, it can also include:

[0067] Based on the target start time and the pre-start time, determine a pre-start time that is earlier than the target start time by the pre-start time; the pre-start time is earlier than the charging start time;

[0068] Wait until the pre-starting time, and execute the action of obtaining the pre-preheating temperature of the target vehicle and obtaining the pre-preheating state of charge of the power battery of the target vehicle.

[0069] It can be understood that after obtaining the target start time, the corresponding pre-start time is determined; wait until the pre-start time, obtain the real-time temperature and the real-time state of charge as the pre-preheating temperature and the pre-preheating state of charge, and determine the charging start time and the heating start time; wait until the charging start time, start the range extender; wait until the heating start time, start the preheating device. Based on this execution order, the pre-start time should be earlier than the charging start time, and the charging start time should not be later than the heating start time. In order to ensure that the method can be executed smoothly in various situations, the pre-start time must be earlier than the charging start time in various situations. Therefore, the pre-start duration can be determined based on historical data and the parameters of each device in the target vehicle. For example, according to the historical data of the target vehicle, it is known that in various situations, the interval between the charging start time and the target start time is usually no more than 30 minutes. At this time, the pre-start duration can be set to a value of not less than 30 minutes, such as 40 minutes. The pre-start time can be determined according to the pre-start duration.

[0070] It can be understood that setting the time for obtaining the pre-preheating temperature and the pre-preheating state of charge can improve the validity of the data and further ensure the efficiency and accuracy of the preheating operation and charging.

[0071] It is understandable that the preheating method of the present application aims, on the one hand, to improve the user experience, that is, to ensure that charging and preheating are automatically completed before the target start time, and on the other hand, to reduce the heating energy consumption during preheating and reduce the preheating cost. The reduction in heating energy consumption is primarily a measure to use a preheating device that cooperates with the range extender to perform the preheating operation. Secondly, under the premise of the primary measure, the range extender is operated under a higher efficiency condition as much as possible, thereby reducing the economic cost of the range extender during the preheating process. It is understandable that the highest efficiency of the range extender corresponds to the optimal efficiency point. If the range extender can meet the primary measure at the optimal efficiency point, the operating condition of the optimal efficiency point is directly applied. If not, other operating conditions with better performance are selected. Therefore, in some embodiments, the process of determining the operating parameters and charging time of the range extender of the target vehicle may include:

[0072] Based on the optimal operating parameters corresponding to the best efficiency point of the range extender of the target vehicle, determine the theoretical charge change of the power battery when the time taken by the range extender to charge the power battery with the optimal operating parameters is the minimum charging time;

[0073] Determine the difference between the target state of charge and the state of charge before preheating as the real-time charge gap amount;

[0074] When the theoretical charge change is not greater than the real-time charge gap, the operating parameters of the range extender are determined to be optimal operating parameters, and the charging time corresponding to the optimal operating parameters is determined.

[0075] It can be understood that the theoretical charge change is the charge that the power battery can obtain if the range extender is charged with optimal operating parameters under the minimum charging time required by the preheating device for the range extender to work; the real-time charge gap is the real-time charge gap that the range extender can charge the current power battery at most under the charging constraints of the power battery.

[0076] The comparison between the theoretical charge change and the real-time charge gap is essentially a comparison between the minimum charging time and the gap charging time. The gap charging time is the time it takes for the range extender to use the optimal operating parameters to raise the charge state of the power battery to the target charge state before preheating.

[0077] Comparing the two, if the theoretical charge change is greater than the real-time charge gap, the minimum charging time is greater than the gap charging time. When the power battery reaches the target charge state, only the real-time charge gap is filled, and based on the charging constraints, it is impossible to charge more to the theoretical charge change. In other words, the range extender charges too fast under the optimal operating parameters, and the time to reach the target charge state is short, which is not enough to continuously support the preheating device during the entire heating time; if the theoretical charge change is not greater than the real-time charge gap, the minimum charging time is not greater than the gap charging time, which means that even if the range extender works with the optimal operating parameters, the gap charging time required to fill the real-time charge gap is longer, not less than the minimum charging time, and can continuously support the preheating device during the entire heating time.

[0078] It can be understood that it is necessary to first determine whether the range extender can use the optimal operating parameters under the current circumstances. If the optimal operating parameters can be used, the charging time of the current real-time state of charge is determined based on the optimal operating parameters. At this time, the charging time is also the gap charging time, which can achieve the preheating effect with the highest charging efficiency and the lowest energy consumption.

[0079] Furthermore, if the range extender cannot use the optimal operating parameters under the current circumstances, an adjustment plan is required. The first adjustment idea is to select other operating parameters to maximize the charging efficiency of the range extender while ensuring that the actual charging time is not less than the minimum charging time, which can usually be determined by looking up a table; the second adjustment idea is to first consume the power battery's electrical energy through the electric heating mode of the preheating device. At this time, the real-time temperature of the target vehicle will increase, and the state of charge of the power battery will decrease. Then, the charging and preheating operations under the coordination of the range extender and the preheating device are planned again.

[0080] According to the first adjustment idea, in some embodiments, the process of determining the operating parameters and charging time of the range extender of the target vehicle may also include:

[0081] When the theoretical charge change is greater than the real-time charge gap, based on the real-time charge gap and the heating time, by querying the preset operating relationship, the operating charging time in the preset operating relationship that is not less than the minimum charging time and corresponds to the highest efficiency is used as the charging time of the range extender, and the operating parameters corresponding to the charging time are determined based on the preset operating relationship.

[0082] It is understandable that the preset operating relationship here can be expressed in a table, which is determined based on the specific configuration of the range extender and the power battery. The preset operating relationship includes multiple groups of operating data, each group of operating data includes at least the operating parameters of the range extender, the efficiency of the range extender, and the operating charging time, where the operating parameters include the speed and torque of the range extender, the efficiency of the range extender refers to the oil-to-electricity conversion rate, and the operating charging time refers to the time it takes to charge the real-time state of charge of the power battery to the target state of charge under the operating parameters and efficiency. The specific calculation process is as follows:

[0083]

[0084] Among them, Δt i , P Gi , η Gi 、Tn i and n i The operation and charging time, charging power, efficiency, torque and speed in the i-th group of operation data are respectively, SOC m and SOC t The target state of charge and the state of charge before preheating are respectively, Q b is the battery pack capacity of the power battery.

[0085] It is understandable that the calculation of the best efficiency point in the above text can also be performed based on the above formula. In fact, the operating data corresponding to the best efficiency point can also be included in the preset operating relationship. In a specific embodiment, it is not necessary to judge the size of the theoretical charge change and the real-time charge gap, and directly look up the table based on the minimum charging time to determine the corresponding operating parameters and charging time.

[0086] According to the second adjustment idea, in some embodiments, the process of determining the operating parameters and charging time of the range extender of the target vehicle may also include:

[0087] When the theoretical charge change is greater than the real-time charge gap, determine the electric heating time of the preheating device based on the power battery and the power consumption of the power battery corresponding to the electric heating time;

[0088] Based on the electric heating time and the power consumption, the pre-preheating temperature and the pre-preheating state of charge are updated, and the steps of determining the heating time of the preheating device of the target vehicle based on the pre-preheating temperature and the pre-preheating state of charge, and determining the operating parameters and charging time of the range extender of the target vehicle are performed;

[0089] Specifically, the process of updating the pre-preheating temperature and the pre-preheating state of charge may include:

[0090] The state of charge before preheating is updated to: the difference between the state of charge before preheating and the power consumption;

[0091] The pre-preheating temperature is updated to: the temperature after the preheating device performs a preheating operation for an electric heating time in an electric heating mode, starting from the pre-preheating temperature.

[0092] It is understandable that this part is still a planning calculation for energy. Assuming that the preheating device is powered by the power battery for a period of time, the temperature and battery state of charge will change after this period of time. The changed temperature and battery state of charge are calculated as the temperature and state of charge before preheating, and then the details of the coordinated work of the range extender and the preheating device are re-planned and calculated based on the calculated results.

[0093] It is understandable that the power consumption of the power battery is proportional to the duration of electric heating. If an electric heating duration is first determined according to the preset conditions, for example, it is uniformly set to 3 minutes, and for example, the real-time state of charge in the preset conditions is positively correlated with the duration of electric heating, then the corresponding power consumption can be directly determined, and then the state of charge before preheating is updated. The updated state of charge before preheating = the state of charge before preheating before the update - power consumption. In addition, according to planning requirements, such as requiring the subsequent range extender to work under a certain set of operating data, or requiring the subsequent range extender to work with the optimal operating parameters, the state of charge of the power battery before the range extender is charged can be reversed, and then the power consumption corresponding to the current electric heating mode can be reversed, and then the electric heating duration can be determined.

[0094] Correspondingly, the updated pre-preheating temperature is positively correlated with the electric heating time. The longer the electric heating time, the higher the updated pre-preheating temperature. It can be specifically determined based on the electric heating efficiency and electric heating time of the electric heating mode of the preheating device and the temperature rise model of the target vehicle.

[0095] It can be understood that the new operating parameters, charging time and heating time are determined based on the updated pre-preheating temperature and pre-preheating charge state. The idea is the same as the determination idea in the above text, and can be specifically implemented according to the description of the embodiment in the above text.

[0096] Furthermore, when the preheating device is planned to supply energy based on the power battery, it is also necessary to set when the electric heating mode of the preheating device is activated during actual operation. Accordingly, after determining the heating start time and the charging start time based on the target start time, heating time and charging time, it also includes:

[0097] Determining an electric heating start time based on the target start time, the heating duration, the charging duration, and the electric heating duration;

[0098] Wait until the electric heating starts, and control the preheating device to perform a preheating operation for the electric heating duration in the electric heating mode.

[0099] It is known that the purpose of the electric heating mode is to consume the electric energy of the power battery. Therefore, electric heating can be performed before the range extender works, or during the range extender works. Generally, in the early or middle stage of the range extender, if the range extender has charged the battery to the target state of charge and then performs electric heating, and then the range extender is recharged, repeated starting of the range extender may result in certain energy losses. Therefore, the start time of electric heating must be at least the length of the electric heating time ahead of the target start time. Usually, the start time of electric heating can be earlier than the start time of charging, or the same as the start time of charging, or the same as the start time of heating. The electric heating process and the charging process, and the heating process based on the coordination of the range extender, may overlap in time. The specific time can be set according to the equipment operation characteristics of the target vehicle, and there is no restriction here.

[0100] It is understandable that whether to choose the first adjustment idea or the second adjustment idea, one of the adjustment ideas can be selected by default, or corresponding selection conditions can be set for the two adjustment ideas, such as using the difference between the theoretical charge change and the real-time charge gap as the selection condition. If the difference is small, the first one is selected, and the efficiency of the range extender will not be too low. If the difference is large, the second one is selected to ensure that the efficiency of the range extender will not be too low. The above discussion is based on the situation where the real-time charge gap is not less than zero, which is inevitable when the target state of charge is 100%. However, if the target state of charge is not 100%, it is possible that the real-time state of charge is greater than or equal to the target state of charge. In this case, the second adjustment idea must be selected, or the target state of charge must be adjusted to a larger value before considering which adjustment idea to choose.

[0101] Furthermore, in the second adjustment idea, when determining the operating parameters and charging time based on the updated pre-preheating state of charge, one of the two adjustment ideas can also be selected, or one can be selected according to specific selection conditions. The specific idea selection can be adjusted according to the actual situation and user settings, and is not limited here.

[0102] It is understandable that in order to avoid the situation where the real-time state of charge of the power battery is too high, resulting in the range extender having a too short charging time and difficulty in performing the preheating operation, a maximum charging limit value may be set in advance to limit the range extender from charging the power battery to not exceed the maximum charging limit value during the normal operation of the target vehicle. Therefore, in some embodiments, before obtaining the target start time of the target vehicle, the following may also be included:

[0103] Obtain the preheating control status of the target vehicle;

[0104] When the preheating control state is in the enabled state, the maximum charging limit value is enabled; the maximum charging limit value is less than the target state of charge, and is used to: during the driving process of the target vehicle, limit the state of charge of the power battery to not exceed the maximum charging limit value;

[0105] Execute an action of obtaining a target start time of a target vehicle;

[0106] When the preheating control state is in the disabled state, the maximum charging limit value is disabled.

[0107] It is understandable that whether the maximum charging limit value is enabled for application is determined based on the corresponding preheating control state set by the user instruction. If the user intends to turn off automatic preheating, the preheating control state is set to the disabled state through the user instruction. At this time, the maximum charging limit value is invalid, and the range extender charges the power battery according to the operation strategy of the target vehicle; if the user intends to enable automatic preheating, the preheating control state is set to the enabled state through the user instruction. At this time, the maximum charging limit value is also in the enabled state. In other application scenarios outside the application scenario of this solution, the range extender is not allowed to charge the power battery to exceed the maximum charging limit value. When the maximum charging limit value is enabled, the real-time charge state in this solution does not exceed the maximum charging limit value, so it can provide sufficient charging space for the range extender so that the charging time of the range extender meets the coordination requirements of the preheating device.

[0108] Furthermore, in the operation strategies of some target vehicles, the range extender is required to charge the power battery and keep the power battery at the maximum charging limit value. In this case, when the preheating method of the present scheme is executed, if it can be predicted that the power battery consumes less power after the target vehicle stops, the charge state of the power battery before preheating can be directly replaced by the maximum charging limit value. At this time, in the preset operation relationship in the above embodiment, since the charge state before preheating is also determined, the corresponding operation and charging time can be directly determined. Therefore, all operation data in the preset operation relationship are determined values. The implementation of the entire scheme determines the heating time and the minimum charging time based on the temperature before preheating, and directly queries the preset operation relationship based on the minimum charging time to determine the charging time and the corresponding operation parameters, and then determines the heating start time and the charging start time and performs the corresponding operations.

[0109] It can be understood that in the above preheating operation, the preheating device mainly works in cooperation with the range extender. If the power battery of the target vehicle is in an external charging mode, such as wireless charging or wired charging, the range extender may not be used, and an external power source may be directly used to power the preheating device, so that the preheating device performs a preheating operation in an electric heating mode. Taking wired charging as an example, in some embodiments, before obtaining the charge state of the power battery of the target vehicle before preheating, it also includes:

[0110] Get the charging gun connection status of the target vehicle;

[0111] When the charging gun is in a normal connection state, controlling the preheating device to perform a preheating operation in an electric heating mode based on external power supply of the charging gun;

[0112] When the charging gun connection state is not in the normal connection state, an action of obtaining the charge state of the power battery of the target vehicle before preheating is performed.

[0113] It can be understood that whether the preheating device can be powered by an external power supply can be determined by detecting the connection status of the charging gun. If the connection status of the charging gun is a normal connection state, it can be powered by an external power supply. If the connection status of the charging gun is not a normal connection state, including an abnormal connection state, a disconnected state, etc., it cannot be powered by an external power supply, and the range extender and the preheating device will be returned to the collaborative working mode.

[0114] Specifically, in the preheating operation of the electric heating mode, the electric heating power of the preheating device can be set to a larger value, or even the maximum power operation can be selected. The specific setting can be made according to actual conditions and user selection, and is not limited here.

[0115] In addition, the maximum charging limit value is to ensure the smooth progress of collaborative work. Once the preheating device is powered by an external power supply, collaborative work is not required and the limit can be canceled. That is, if the maximum charging limit value is currently set, the maximum charging limit value will not be enabled when the charging gun is connected to a normal state.

[0116] It is understandable that the specific parameters in the above scheme can be adjusted and reprocessed according to actual conditions and user needs. Since the accuracy of human body's perception of temperature is not very strict, the relevant parameters involved in the preheating method can be adaptively adjusted according to the equipment status of the target vehicle. The corresponding relationship of the parameters remains unchanged, and the order of parameter determination can also be adjusted, as long as the preheating operation ensures that the user provides a more comfortable driving environment than the environment outside the vehicle.

[0117] The method of the embodiment of the present application obtains the target start time of the target vehicle in advance, determines the charging start time of the range extender charging the power battery, the heating start time of the preheating device performing the preheating operation in cooperation with the range extender according to the preheating temperature and the preheating state, and starts the range extender to charge the power battery based on the charging start time, and starts the preheating device to perform the preheating operation based on the heating start time, so that at the target start time, the range extender completes the charging of the power battery at the same time as the preheating operation is completed. There is no need for the user to plan the triggering time of the preheating operation and trigger it manually. As long as the user sets the target start time for the next use of the vehicle in advance, the preheating operation before the target start time can be automatically planned and executed. The humanized preheating management brings the user a worry-free car experience. At the same time, in the present application, the heat generated by the charging of the range extender is used for the preheating device to perform the preheating operation, and the heating energy consumption of the preheating operation is significantly reduced, and the economy is better.

[0118] All the above optional technical solutions can be combined in any way to form optional embodiments of the present application, and will not be described in detail here. It should be understood that the size of the sequence number of each step in the above embodiment does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0119] The following is an embodiment of the device of the present application, which can be used to execute the embodiment of the method of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the method of the present application.

[0120] Figure 4 Schematic diagram of a preheating device for a range-extended vehicle provided in an embodiment of the present application. Figure 4 As shown, the preheating device comprises:

[0121] A first acquisition module 401 is used to acquire a target start time of a target vehicle;

[0122] The second acquisition module 402 is used to acquire the pre-preheating temperature of the target vehicle and the pre-preheating state of charge of the power battery of the target vehicle;

[0123] An analysis module 403 is used to determine the heating time of the preheating device of the target vehicle based on the pre-preheating temperature and the pre-preheating state of charge, and to determine the operating parameters and charging time of the range extender of the target vehicle;

[0124] The analysis module 403 is further used to determine the heating start time and the charging start time based on the target start time, the heating time and the charging time;

[0125] The control module 404 is used to wait until the charging start time and control the range extender to charge the power battery according to the operating parameters;

[0126] The control module 404 is further used to wait until the heating starts, and control the preheating device to perform the preheating operation in coordination with the range extender.

[0127] Compared with the prior art, the beneficial effects of the embodiments of the present application include at least the following: the embodiments of the present application obtain the target start time of the target vehicle in advance, determine the charging start time of the range extender charging the power battery, and the heating start time of the preheating device performing the preheating operation in cooperation with the range extender according to the preheating temperature and the preheating state of charge, and act based on the charging start time and the heating start time, so that at the target start time, the range extender completes the charging of the power battery while the preheating operation is completed. There is no need for the user to plan the trigger time of the preheating operation and trigger it manually. As long as the user sets the target start time for the next use of the vehicle in advance, the preheating operation before the target start time can be automatically planned and executed. The humanized preheating management brings the user a worry-free car experience. At the same time, in the present application, the heat generated by the charging of the range extender is used for the preheating device to perform the preheating operation, and the heating energy consumption of the preheating operation is significantly reduced, and the economy is better.

[0128] In an exemplary embodiment, the heating time includes: the time taken for the target vehicle to rise from a pre-preheating temperature to a target temperature when the preheating device is controlled to perform a preheating operation in coordination with the range extender;

[0129] The charging time includes: the time it takes for the charge state to rise to the target charge state before preheating when the range extender charges the power battery according to the operating parameters. The charging time shall not be less than the minimum charging time corresponding to the heating time. The minimum charging time is the difference between the heating time and the preset waiting time.

[0130] In an exemplary embodiment, the analysis module 403 is specifically used for:

[0131] Based on the optimal operating parameters corresponding to the best efficiency point of the range extender of the target vehicle, determine the theoretical charge change of the power battery when the time taken by the range extender to charge the power battery with the optimal operating parameters is the minimum charging time;

[0132] Determine the difference between the target state of charge and the state of charge before preheating as the real-time charge gap amount;

[0133] When the theoretical charge change is not greater than the real-time charge gap, the operating parameters of the range extender are determined to be optimal operating parameters, and the charging time corresponding to the optimal operating parameters is determined.

[0134] In an exemplary embodiment, the analysis module 403 is further configured to:

[0135] When the theoretical charge change is greater than the real-time charge gap, based on the real-time charge gap and the heating time, by querying the preset operating relationship, the operating charging time in the preset operating relationship that is not less than the minimum charging time and corresponds to the highest efficiency is used as the charging time of the range extender, and the operating parameters corresponding to the charging time are determined based on the preset operating relationship.

[0136] In an exemplary embodiment, the analysis module 403 is further configured to:

[0137] When the theoretical charge change is greater than the real-time charge gap, determine the electric heating time of the preheating device based on the power battery and the power consumption of the power battery corresponding to the electric heating time;

[0138] Based on the electric heating time and the power consumption, the pre-preheating temperature and the pre-preheating state of charge are updated, and the steps of determining the heating time of the preheating device of the target vehicle based on the pre-preheating temperature and the pre-preheating state of charge, and determining the operating parameters and charging time of the range extender of the target vehicle are performed;

[0139] Accordingly, after determining the heating start time and the charging start time based on the target start time, the heating duration and the charging duration, the method further includes:

[0140] Determining an electric heating start time based on the target start time, the heating duration, the charging duration, and the electric heating duration;

[0141] Wait until the electric heating starts, and control the preheating device to perform a preheating operation for the electric heating duration in the electric heating mode.

[0142] In an exemplary embodiment, before the second acquisition module 402 acquires the pre-preheating state of charge of the power battery of the target vehicle, it is further configured to:

[0143] Get the charging gun connection status of the target vehicle;

[0144] When the charging gun is in a normal connection state, controlling the preheating device to perform a preheating operation in an electric heating mode based on external power supply of the charging gun;

[0145] When the charging gun connection state is not in the normal connection state, an action of obtaining the charge state of the power battery of the target vehicle before preheating is performed.

[0146] In an exemplary embodiment, the first acquisition module 401 is further configured to:

[0147] Obtain the preheating control status of the target vehicle;

[0148] When the preheating control state is in the enabled state, the maximum charging limit value is enabled; the maximum charging limit value is less than the target state of charge, and is used to: during the driving process of the target vehicle, limit the state of charge of the power battery to not exceed the maximum charging limit value;

[0149] Execute an action of obtaining a target start time of a target vehicle;

[0150] When the preheating control state is in the disabled state, the maximum charging limit value is disabled.

[0151] Figure 5 Schematic diagram of an electronic device 5 provided in an embodiment of the present application. Figure 5 As shown, the electronic device 5 of this embodiment includes: a processor 501, a memory 502, and a computer program 503 stored in the memory 502 and executable on the processor 501. When the processor 501 executes the computer program 503, the steps in the above-mentioned method embodiments are implemented. Alternatively, when the processor 501 executes the computer program 503, the functions of the modules / units in the above-mentioned device embodiments are implemented.

[0152] The electronic device 5 may be a desktop computer, a notebook, a PDA, a cloud server, or other electronic device. The electronic device 5 may include, but is not limited to, a processor 501 and a memory 502. Those skilled in the art will appreciate that Figure 5 The electronic device 5 is merely an example and does not limit the electronic device 5 , and may include more or less components than those shown in the figure, or different components.

[0153] The processor 501 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0154] The memory 502 may be an internal storage unit of the electronic device 5, for example, a hard disk or memory of the electronic device 5. The memory 502 may also be an external storage device of the electronic device 5, for example, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the electronic device 5. The memory 502 may also include both an internal storage unit of the electronic device 5 and an external storage device. The memory 502 is used to store computer programs and other programs and data required by the electronic device.

[0155] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units.

[0156] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. The computer program may include computer program code, which may be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc.

[0157] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A preheating method for an extended-range vehicle, characterized in that: include: Obtaining a target start time of a target vehicle; Acquire the pre-preheating temperature of the target vehicle, and acquire the pre-preheating state of charge of the power battery of the target vehicle; Based on the pre-preheating temperature and the pre-preheating state of charge, determining a heating time of a preheating device of the target vehicle, and determining operating parameters and a charging time of a range extender of the target vehicle; Determining a heating start time and a charging start time based on the target start time, the heating duration, and the charging duration; Waiting until the charging start time, controlling the range extender to charge the power battery according to the operating parameters; Wait until the heating start time, and control the preheating device to perform a preheating operation in coordination with the range extender.

2. The method according to claim 1, characterized in that The heating time includes: the time taken for the target vehicle to rise from the pre-preheating temperature to the target temperature when the preheating device performs the preheating operation in coordination with the range extender; The charging time includes: the time taken for the charge state before preheating to rise to the target charge state when the range extender charges the power battery according to the operating parameters, the charging time is not less than the minimum charging time corresponding to the heating time, and the minimum charging time is the difference between the heating time and the preset waiting time.

3. The method according to claim 2, characterized in that The process of determining the operating parameters and charging time of the range extender of the target vehicle includes: Based on the optimal operating parameters corresponding to the best efficiency point of the range extender of the target vehicle, determining the theoretical charge change of the power battery when the time taken for the range extender to charge the power battery with the optimal operating parameters is the minimum charging time; Determine a difference between the target state of charge and the state of charge before preheating as a real-time charge gap amount; When the theoretical charge change is not greater than the real-time charge gap, the operating parameters of the range extender are determined to be the optimal operating parameters, and the charging time corresponding to the optimal operating parameters is determined.

4. The method according to claim 3, characterized in that The process of determining the operating parameters and charging time of the range extender of the target vehicle also includes: When the theoretical charge change is greater than the real-time charge gap, based on the real-time charge gap and the heating time, by querying a preset operating relationship, the operating charging time in the preset operating relationship that is not less than the minimum charging time and corresponds to the highest efficiency is used as the charging time of the range extender, and the operating parameters corresponding to the charging time are determined based on the preset operating relationship.

5. The method according to claim 3, characterized in that: The process of determining the operating parameters and charging time of the range extender of the target vehicle also includes: When the theoretical charge change is greater than the real-time charge gap, determining the electric heating time of the preheating device based on the power battery and the power consumption of the power battery corresponding to the electric heating time; Based on the electric heating time and the power consumption, the pre-preheating temperature and the pre-preheating state of charge are updated, and the heating time of the preheating device of the target vehicle is determined based on the pre-preheating temperature and the pre-preheating state of charge, and the operating parameters and charging time of the range extender of the target vehicle are determined; Accordingly, after determining the heating start time and the charging start time based on the target start time, the heating duration and the charging duration, the method further includes: Determining an electric heating start time based on the target start time, the heating duration, the charging duration, and the electric heating duration; Wait until the electric heating starts, and control the preheating device to perform a preheating operation for the electric heating duration in an electric heating mode.

6. The method according to claim 1, characterized in that Before obtaining the pre-preheating state of charge of the power battery of the target vehicle, the method further includes: Obtaining the charging gun connection status of the target vehicle; When the connection state of the charging gun is a normal connection state, controlling the preheating device to perform a preheating operation in an electric heating mode based on external power supply of the charging gun; When the connection state of the charging gun is not the normal connection state, an action of obtaining the charge state of the power battery of the target vehicle before preheating is performed.

7. The method according to any one of claims 1 to 6, characterized in that Before obtaining the target start time of the target vehicle, it also includes: Obtain the preheating control status of the target vehicle; When the preheating control state is in the enabled state, enabling a maximum charging limit value; the maximum charging limit value is less than a target state of charge, and is used to: during the driving process of the target vehicle, limit the state of charge of the power battery to not exceed the maximum charging limit value; Execute an action of obtaining a target start time of a target vehicle; When the preheating control state is in a disabled state, the maximum charging limit value is disabled.

8. A preheating device for an extended-range vehicle, characterized in that: include: A first acquisition module is used to acquire a target start time of a target vehicle; A second acquisition module is used to acquire the pre-preheating temperature of the target vehicle and the pre-preheating state of charge of the power battery of the target vehicle; an analysis module, configured to determine a heating time of a preheating device of the target vehicle based on the preheating temperature and the preheating state of charge, and determine operating parameters and a charging time of a range extender of the target vehicle; The analysis module is further used to determine a heating start time and a charging start time based on the target start time, the heating duration and the charging duration; a control module, configured to wait until the charging start time and control the range extender to charge the power battery according to the operating parameters; The control module is further configured to wait until the heating start time and control the preheating device to perform a preheating operation in coordination with the range extender.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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