A preheating method and device for a range-extended vehicle, an electronic device, and a medium

Abstract

The application relates to the technical field of electric vehicles, and provides a preheating method and device for a range-extender vehicle, an electronic device and a medium. The method comprises the following steps: obtaining a target starting time of a target vehicle; obtaining a preheating temperature and a preheating state of charge; determining a heating duration, and determining the operation parameters of a range extender and a charging duration based on the preheating temperature and the preheating state of charge; determining a heating starting time and a charging starting time based on the target starting time, the heating duration and the charging duration; waiting until the charging starting time, and controlling the range extender to charge a power battery according to the operation parameters; and waiting until the heating starting time, and controlling a preheating device to perform a preheating operation under the cooperation of the range extender. The preheating management of the application is user-friendly, the heating energy consumption of the preheating operation is obviously reduced, and the economy is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric vehicles, and particularly relates to a preheating method and device for a range-extender vehicle, an electronic device and a medium. BACKGROUND

[0002] When a vehicle is parked outdoors, the vehicle state will be affected by temperature. In the case of extremely low temperature, the front windshield of the vehicle will be covered with ice and snow to varying degrees, and the temperature in the cabin continues to decrease. If the vehicle is an electric vehicle, the discharge capacity of the power battery carried on the vehicle will also be affected by temperature. Extremely low temperature will cause the discharge capacity of the battery to decrease.

[0003] In order to eliminate the influence of low-temperature environment, the user needs to start the vehicle in advance for preheating before using the vehicle. The preheating at least includes starting the air conditioner defrosting function to melt ice and snow, and includes heating the interior of the cabin and warming the power battery to an appropriate temperature. The preheating operation must be triggered by the user, for example, the user triggers the preheating operation by starting the vehicle after reaching the parking point, or the user triggers the preheating operation by remote control. This triggering requires the user to have strong planning ability. If the user does not trigger the preheating operation in time, it will affect the subsequent travel arrangement. If the user triggers the preheating operation too early, it will cause waste of heating energy consumption. In addition, remote control has certain requirements for hardware. If the network is poor, the preheating operation may not be triggered. Therefore, the user experience of the preheating operation is poor at present.

[0004] In addition, whether it is a fuel vehicle or an electric vehicle, the preheating operation needs to be realized by consuming oil or electricity. The heating energy consumption of the vehicle is high, and the economy is poor. Especially in areas with low temperature, 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 needs to be solved by the person skilled in the art at present. SUMMARY

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

[0007] In a first aspect, the embodiments of the present application provide a preheating method for a range-extender vehicle, comprising:

[0008] obtaining a target starting time of a target vehicle;

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

[0010] determine the heating duration of the preheating device of the target vehicle based on the preheating temperature and the preheating state of charge, and determine the operation parameter of the range extender of the target vehicle and the charging duration;

[0011] determine the heating start time and the charging start time based on the target start time, the heating duration and the charging duration;

[0012] wait until the charging start time, and control the range extender to charge the power battery according to the operation parameter;

[0013] wait until the heating start time, and control the preheating device to perform the preheating operation under the cooperation of the range extender.

[0014] In a second aspect, the embodiment of the present application provides a preheating device of a range extender vehicle, which comprises:

[0015] a first obtaining module configured to obtain a target start time of a target vehicle;

[0016] a second obtaining module configured to obtain a preheating temperature of the target vehicle, and obtain a preheating state of charge of a power battery of the target vehicle;

[0017] an analyzing module configured to determine a heating duration of a preheating device of the target vehicle based on the preheating temperature and the preheating state of charge, and determine an operation parameter of a range extender of the target vehicle and a charging duration;

[0018] the analyzing module is further configured to determine a heating start time and a charging start time based on the target start time, the heating duration and the charging duration;

[0019] a control module configured to wait until the charging start time, and control the range extender to charge the power battery according to the operation parameter;

[0020] the control module is further configured to wait until the heating start time, and control the preheating device to perform the preheating operation under the cooperation of the range extender.

[0021] In a third aspect, the embodiment of the present application provides an electronic device, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the above method when executing the computer program.

[0022] In a fourth aspect, the embodiment of the present application provides a computer readable storage medium, which stores a computer program, and the computer program implements the steps of the above method when executed by a processor.

[0023] Compared with the prior art, the embodiment of the present application has at least the following beneficial effects: the embodiment of the present application acquires the target starting time of the target vehicle in advance, determines the charging starting time of the range extender to the power battery and the heating starting time of the preheating device to perform the preheating operation under the cooperation of the range extender according to the preheat temperature and the preheat state of charge, and acts based on the charging starting time and the heating starting time, so that at the target starting time, the preheating operation is completed at the same time as the charging of the range extender to the power battery is completed. The user does not need to plan the triggering time of the preheating operation and manually trigger, and the present application can automatically plan and perform the preheating operation before the target starting time as long as the user sets the target starting time of the next use of the vehicle in advance. The user-friendly preheating management brings the user a worry-free driving experience, and the heat generated by the charging of the range extender is used for the preheating device to perform the preheating operation in the present application, so that the heating energy consumption of the preheating operation is significantly reduced, and the economy is good. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any creative labor.

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

[0026] Figure 2 is a flow diagram of a preheating method of a range extender vehicle provided by the embodiment of the present application;

[0027] Figure 3 is a structure diagram of a target vehicle provided by the embodiment of the present application;

[0028] Figure 4 is a structure diagram of a preheating device of a range extender vehicle provided by the embodiment of the present application;

[0029] Figure 5 is a structure diagram of an electronic device provided by the embodiment of the present application. DETAILED DESCRIPTION

[0030] In the following description, specific details such as specific system structures, techniques, etc. are presented in order to thoroughly understand the embodiments of the present application, but it should be clear to those skilled in the art that the present application can 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 avoid unnecessary details that hinder the description of the present application.

[0031] A preheating method and device for a range-extending vehicle, an electronic device, and a medium are provided.

[0032] To eliminate the influence of low-temperature environment on vehicle use, a preheating operation is required before vehicle use, which includes defrosting the front windshield, raising the temperature in the cabin, raising the temperature of the power battery, etc. The conventional preheating operation must be triggered by the user, such as manually starting the vehicle to trigger the preheating operation after the user reaches the parking point, or triggering the preheating operation by remote control. This triggering of the preheating operation requires the user to have strong planning ability and sufficient understanding of the vehicle preheating function, otherwise it may affect the subsequent trip arrangement if the user does not trigger the preheating operation in time, or it may cause waste of heating energy if the user triggers the preheating operation too early. In addition, remote control has certain requirements for hardware, and if the network is poor, the preheating operation may not be triggered. The user experience is poor. In addition, the preheating operation of the current fuel vehicle and electric vehicle needs to be achieved by consuming oil or electricity, which has high heating energy consumption and poor economy.

[0033] Therefore, the preheating operation of the present embodiment is performed by the preheating device in cooperation with the range extender, which generates heat when charging the power battery. The preheating device uses the heat generated by the range extender to perform the preheating operation, and the required heating energy consumption is significantly reduced, thereby realizing high-economy preheating operation.

[0034] To solve the problem of poor user experience, the preheating operation in the present embodiment does not need to be triggered by the user, and the user only needs to set the next vehicle use time, i.e. the target start time. The present embodiment will automatically plan and control the work 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 time, realize the humanized preheating management, and save the user's energy and create a more comfortable user experience.

[0035] Figure 1 is a scenario diagram of an application scenario of the present embodiment. The application scenario can 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 a display screen and supporting communication with the server 104, including but not limited to a vehicle system, a smartphone, a tablet computer, a laptop computer, a desktop computer, and the like; 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 electronic devices as above. 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, and the embodiments of the present application do not make any limitation in this regard. Further, the first terminal device 101, the second terminal device 102, and the third terminal device 103 can have various applications installed thereon, such as a data processing application, an instant messaging tool, a social platform software, a search application, a shopping application, and the like.

[0037] The server 104 can be a server providing various services, for example, a background server receiving a request sent by a terminal device establishing a communication connection therewith. The background server can receive and analyze the request sent by the terminal device, and generate a processing result. The server 104 can be a single server, a server cluster composed of several servers, or a cloud computing service center, and the embodiments of the present application do not make any limitation in this regard.

[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 providing 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 providing various services for the first terminal device 101, the second terminal device 102, and the third terminal device 103, or a single software or software module providing various services for the first terminal device 101, the second terminal device 102, and the third terminal device 103, and the embodiments of the present application do not make any limitation in this regard.

[0039] The network 105 can be a wired network connected by coaxial cables, twisted pairs, and optical fibers, or a wireless network realizing interconnection of various communication devices without wiring, for example, Bluetooth, Near Field Communication (NFC), Infrared, and the like, and the embodiments of the present application do not make any limitation in this regard.

[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 scene, and the embodiments of the present application do not limit this.

[0041] Figure 2 is a flowchart of a preheating method of a range extended vehicle provided by an embodiment of the present application. Figure 2 The preheating method of the range extended vehicle can be executed by Figure 1 the first terminal device or the second terminal device or the third terminal device or the server. Figure 2 The preheating method of the range extended vehicle is applied to any range extended vehicle, and the method can be executed as long as the range extended vehicle is taken as a target vehicle. The structure diagram of the target vehicle can be as shown in Figure 3 The target vehicle includes a power battery, a range extender and a preheating device.

[0042] Specifically, as shown in Figure 2 The preheating method of the range extended vehicle includes:

[0043] S201: Obtain a target starting time of a target vehicle;

[0044] S202: Obtain a preheating temperature of the target vehicle, and obtain a preheating state of charge of a power battery of the target vehicle;

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

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

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

[0048] S206: Wait until the heating starting time, and control the preheating device to perform a preheating operation under the cooperation of the range extender.

[0049] It can be understood that the preheating operation performed by the preheating device of the range extended vehicle in the embodiment includes at least one of heating the interior of the cabin, defrosting the front windshield of the cabin and warming up the power battery. The specific operation function can be selected according to the actual situation and user demand, and the corresponding preheating device such as a heat pump air conditioner and an electric heater can be configured. For example, Figure 3As shown, the preheating device actually reuses the heat generated by the range extender when charging the power battery during the preheating operation in cooperation with the range extender, which can be achieved by a circulating water system in the target vehicle. During the charging of the power battery by the range extender, the circulating water system absorbs the heat of the range extender to cool the range extender, and the circulating water in the circulating water system is heated. The preheating device can perform the preheating operation by using the heated circulating water. Since the preheating operation is supported by the heat energy generated by the range extender, the heating energy consumption is reduced.

[0050] Specifically, after obtaining the target starting time, the embodiment determines the heating duration of the preheating device in cooperation with the range extender according to the preheating temperature of the target vehicle, determines the operating parameters and charging duration of the range extender according to the pre-charge state of the power battery, controls the range extender to charge the power battery according to the operating parameters and charging duration, and controls the preheating device to work according to the heating duration. Therefore, when the target starting time is reached, the range extender has completed charging the power battery, and the preheating device has completed the preheating operation. The relationship between the charging duration and the heating duration is set to ensure that the preheating operation of the preheating device can be supported by the range extender.

[0051] It can be understood that the user can determine to start or stop the preheating function through a user instruction, and starting the preheating function means enabling the method of the embodiment. In the embodiment, the target starting time is determined based on the same user instruction. The user instruction can be sent by the user to the execution subject of the method of the embodiment through the man-machine interaction device in the target vehicle, or can be sent by the user to the execution subject of the method of the embodiment through a mobile terminal. The specific implementation is not limited.

[0052] It can be understood that the target starting time refers to the time when the user uses the target vehicle next time, which is used as an enabling basis for starting the subsequent preheating operation. The time is similar to the alarm time, and the user can customize the specific time and the number of repetitions, wherein the specific time can be a certain time of a certain day or a certain time of each day, and the number of repetitions can be set to enable only once, or can be set to enable once under certain conditions, which can be every day, weekdays, weekends or other special dates. The specific target starting time can be set according to user needs, and the specific target starting time is not limited here. It can be understood that if the target starting time is not obtained, the method of the embodiment does not need to be executed.

[0053] After the valid target starting moment is acquired in step S201, step S202 can be executed. It can be understood that the effect of the method of the embodiment is that the target vehicle in the parking state is preheated and charged in the case that the user will use the target vehicle at the target starting moment, so that the target vehicle has completed preheating and charging at the target starting moment and is in a comfortable use state, and the user can directly use the target vehicle. Therefore, steps S202-S206 all occur when the target vehicle is in the parking state, and the real-time temperature of the target vehicle in the parking state will change with the external environment, and the real-time state of charge of the power battery can change because the elements that still work in the parking state need to be powered. If the real-time temperature and the real-time state of charge at a certain moment are directly used as the preheating temperature and the preheating state of charge, with the change of time, once the real-time temperature and the real-time state of charge change, the specific parameters of subsequent preheating and charging will also change. In order to ensure that the final preheating operation time is accurate and efficient, steps S202-S206 can be repeatedly operated according to a certain time period. In fact, steps S205-S206 will not be executed if the corresponding moment has not been reached, so the periodic cycle is essentially a loop operation of steps S202-S204 until the charging starting moment is in the current time period. Alternatively, in order to reduce the calculation efficiency of the embodiment, a time point before the target starting moment can be set, and only steps S202-S206 are executed at the time point, and steps S202-S206 are not looped. It is considered that the time length from the time point to the target starting moment is short, the real-time temperature and the real-time state of charge remain unchanged and can be directly used as the preheating temperature and the preheating state of charge, and the specific parameters of subsequent actions do not change. The time point can be determined according to historical data and parameters of devices in the target vehicle, and should not be later than the corresponding charging starting moment, and the distance time length from the target starting moment should be not less than the corresponding charging time length and heating time length.

[0054] In some specific embodiments, the heating time length can include: a time consumed by the target vehicle from the preheating temperature to the target temperature when the preheating device is controlled to perform the preheating operation under the cooperation of the range extender;

[0055] The charging time length can include: a time consumed by the preheating state of charge from the preheating state of charge to the target state of charge when the power battery is charged according to the operation parameter by the range extender, and the charging time length is not less than a minimum charging time length corresponding to the heating time length, and the minimum charging time length is a difference between the heating time length and a preset waiting time length.

[0056] It can be understood that the heating duration refers to the execution duration of the preheating device to perform the preheating operation in the cooperative mode, in which the preheating device performs the preheating operation based on the cooperation of the range extender and the heat energy of the range extender. The effect of the preheating operation includes heating the cabin of the target vehicle, defrosting the front windshield, and warming the power battery, among which the change of temperature is most easily observed, and therefore the temperature is taken as the main basis for the heating duration, that is, the heating duration is the time consumption for the target vehicle to rise from the 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, the power battery, or other parts that will be affected by the preheating operation.

[0057] Usually, the preheating device in the cooperative mode is assisted by the circulating water system. Since the temperature protection mechanism is provided in the circulating water system, the water temperature of the circulating water system is maintained in the same stable interval under various working conditions of the range extender, and therefore the heating efficiency of the preheating device in the cooperative mode remains stable. Based on the temperature rise model of the target vehicle and the heating efficiency, the heating duration required for the temperature to rise from the preheating temperature to the target temperature can be determined. The temperature rise model is related to the physical parameters of the front windshield and the internal space parameters of the cabin. Since the relationship among the heating duration, the preheating temperature, and the target temperature is determined by the temperature rise model and the heating efficiency, the heating duration corresponding to the preheating temperature and the target temperature can be set and selected according to actual conditions or user requirements.

[0058] For example, the corresponding target temperature is first determined according to the preheating temperature, and then the corresponding heating duration is determined according to the target temperature. The target temperature can not change with the preheating temperature and be set as a fixed temperature value, such as 0°, 16°, or other temperature values that are more comfortable for human bodies. The target temperature can also change with the preheating temperature. The target temperature is usually positively correlated with the preheating temperature, and therefore the target temperature corresponding to the preheating temperature is also lower when the preheating temperature is lower. Since the human body has strong adaptability, all target temperatures can fall within a relatively wide interval, as long as they are higher than the real-time temperature by a certain amount. If the preheating temperature and the target temperature differ too much, it can cause discomfort to the human body. Therefore, when the corresponding target temperature is determined according to the preheating temperature, the positive correlation between the two temperatures can be used, which can be expressed in a step shape, that is, the preheating temperature determines the corresponding target temperature according to different intervals. The preheating temperature in the same interval corresponds to the same target temperature. For example, the preheating temperature can be divided into the following intervals: (-60, -35], (-35, -25], (-25, -15], (-15, -5], and (-5, 15], and the corresponding target temperatures can include -10, -5, 0, 10, and 20, respectively, wherein the unit of each temperature value is degree Celsius. The corresponding relationship between the specific target temperature and the preheating temperature and the parameter values can be set according to actual conditions and user requirements, which are not limited herein.

[0059] For another example, the corresponding heating duration is determined directly according to the pre-heating temperature, and the heating duration corresponds to a target temperature. It can be understood that the heating duration is generally negatively correlated with the pre-heating temperature, and the lower the pre-heating temperature, the longer the heating duration. It should be noted that the target temperature is usually not a constant value, and the specific temperature value of the target temperature is different under the influence of different pre-heating temperatures and heating durations. This is because the human body has a certain adaptability to temperature, and it is not necessary to accurately heat the target vehicle to a certain specific value, but only to a temperature value that is relatively comfortable in the outdoor environment. When the pre-heating temperature is similar, the corresponding heating duration is similar, and the corresponding target temperature is usually similar. Specifically, the negative correlation between the heating duration and the pre-heating temperature can also be expressed as a step type, that is, the pre-heating temperature determines the corresponding heating duration according to different intervals, and the pre-heating temperature in the same interval corresponds to the same heating duration. For example, the pre-heating temperature can be divided into the following intervals: (-60, -35], (-35, -25], (-25, -15], (-15, -5], and (-5, 15], in units of degrees Celsius, and the corresponding heating duration can be 30 min, 20 min, 15 min, 10 min, and 5 min, respectively. The corresponding relationship between the specific target temperature and the heating duration and the parameter value can be set according to the actual situation and user demand, which is not limited here.

[0060] Specifically, the charging duration corresponds to the working state of the range extender for 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 the pre-heating device such as a heat pump air conditioner in the form of circulating water for pre-heating operation. When 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 pre-heating waiting duration. During this period, the pre-heating device can also perform pre-heating operation based on the cooperation of the circulating water system and the range extender. Therefore, when setting the charging duration, the sum of the charging duration and the preset waiting duration is required to be not less than the heating duration. If the difference between the heating duration and the preset waiting duration is referred to as the minimum charging duration, this requirement can be converted to: the charging duration is not less than the minimum charging duration corresponding to the heating duration.

[0061] It can be understood that, in addition to the limitation of the charging duration in the embodiment, the range extender itself has a charging constraint, that is, the range extender cannot charge the power battery unlimitedly, and the range extender can only charge the power battery from a state of charge (SOC) less than a target state of charge to the target state of charge, and the target state of charge is at most 100%. In the process of charging from the pre-heating state of charge to the target state of charge, the size of the charging duration 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. Generally, the range extender has a set of operating parameters of an optimal efficiency point, which becomes optimal operating parameters. The optimal efficiency point can also be called a highest point of oil-electricity conversion rate or an optimal point of economy. When the range extender is operated at the optimal operating parameters, the oil-electricity conversion rate of the range extender is the highest, and the charging speed is usually the fastest, so the time consumed for charging the power battery to the target state of charge is the shortest. According to the requirement that the charging duration is not less than the minimum charging duration in the embodiment, the operating parameters of the range extender can be adjusted accordingly, so that the range extender working at the operating parameters can meet the requirement of the charging duration.

[0062] Specifically, after the charging duration and the heating duration are determined, the heating start time and the charging start time are determined. The heating start time is the time when the preheating device is controlled to start the preheating operation, the execution duration of the preheating operation is the heating duration, the target start time is reached after the heating duration, and the real-time temperature reaches the target temperature, and the preheating operation is completed. The preheating operation in the preheating process corresponding to the heating duration must be started under the cooperation of the range extender, so the range extender should be started before the heating start time, that is, the charging start time corresponding to the start of the charging of the range extender is not later than the heating start time. At the same time, the final purpose of the charging action of the range extender is to raise the real-time state of charge to the target state of charge at the target start time, so the execution time of the charging action before the target start time should be the charging duration in the above, and the time that is the charging duration earlier than the target start time is called the theoretical charging time. To ensure that the final purpose of the charging action can be achieved, the charging start time of the range extender 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 duration; 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 duration.

[0063] After the charging start time and the heating start time are determined, the range extender is controlled to charge the power battery according to the operating parameters at the charging start time until the pre-heat SOC of the power battery rises to the target SOC, and the time consumption of the entire charging process is theoretically the charging time. Considering that the target SOC is the final purpose of charging, the actual time consumption of the charging process may be affected by the actual working conditions, and there is a slight difference with the charging time. Therefore, in this embodiment, after the range extender starts to charge the power battery from the charging start time, the target SOC can be reached as a determination condition for stopping the charging action.

[0064] Further, at the heating start time, the preheating device is controlled to perform a preheating operation under the cooperation of the range extender until the pre-heat 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 warming up the power battery, and can be set according to actual conditions and user needs. The time consumption of the preheating operation is theoretically the heating time, and the preheating effect is that the real-time temperature rises to the target temperature. As shown above, since the pre-heat temperature, the heating time and the target temperature have a specific corresponding relationship, the corresponding relationship is not absolutely strict, and therefore one of the heating time and the target temperature can be selected as a determination condition for stopping the preheating operation. When one parameter meets the preheating completion, the other parameter also generally meets the preheating completion effect.

[0065] The method of the embodiment of the application determines the charging start time of the range extender charging the power battery, the heating start time of the preheating device performing a preheating operation under the cooperation of the range extender according to the pre-heat temperature and the pre-heat SOC, and starts the range extender to charge the power battery based on the charging start time and starts the preheating device to perform a preheating operation based on the heating start time, so that at the target start time, the preheating operation is completed at the same time as the range extender completes the charging of the power battery. The user does not need to plan the triggering time of the preheating operation and manually trigger. The application can automatically plan and perform the preheating operation before the target start time as long as the user sets the target start time of the next use of the vehicle in advance. The user-friendly preheating management brings the user a worry-free driving experience, and the heat generated by the charging of the range extender is used for the preheating operation of the preheating device in the application, so that the heating energy consumption of the preheating operation is significantly reduced, and the economy is good.

[0066] It can be understood that the real-time temperature and the real-time state of charge change over time as the vehicle is parked, and the real-time temperature and the real-time state of charge obtained too early as the pre-heating temperature and the pre-heating state of charge cannot effectively reflect the state of the target vehicle at the target start time, so the real-time temperature and the real-time state of charge can be obtained as the pre-heating temperature and the pre-heating state of charge in a certain time period and subsequent calculation is performed until the calculated charging start time is within the current time period, and then the charging start time and the heating start time are 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 the real-time state of charge can also be obtained only once at the target start time, and then the charging start time and the heating start time are calculated. The real-time state does not change in a short period of time, so the charging start time and the heating start time are directly considered valid, and corresponding actions are performed. At this time, in some embodiments, after obtaining the target start time of the target vehicle, the method can further include:

[0067] determining a pre-start time based on the target start time and the pre-start time length, the pre-start time being earlier than the target start time;

[0068] waiting until the pre-start time, and performing the actions of obtaining the pre-heating temperature of the target vehicle and obtaining the pre-heating state of charge of the power battery of the target vehicle.

[0069] It can be understood that after the target start time is obtained, the corresponding pre-start time is determined; waiting until the pre-start time, obtaining the real-time temperature and the real-time state of charge as the pre-heating temperature and the pre-heating state of charge, and determining the charging start time and the heating start time; waiting until the charging start time, starting the range extender; waiting until the heating start time, starting the pre-heating device. Based on this execution sequence, 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. To ensure that the method can be smoothly executed in various situations, the pre-start time must be earlier than the charging start time in various situations, so the pre-start time length can be determined according to historical data and parameters of devices in the target vehicle, for example, according to the historical data of the target vehicle, it is known that the interval time length between the charging start time and the target start time in various situations is usually not more than 30 min, at this time the pre-start time length can be set to a value not less than 30 min, such as 40 min, and the pre-start time can be determined according to the pre-start time length.

[0070] It can be understood that setting the acquisition time of the pre-heating temperature and the pre-heating state of charge can improve the effectiveness of the data and further ensure the efficient and accurate pre-heating operation and charging.

[0071] It can be understood that the preheating method of the application is to improve the user experience, that is, to ensure that the charging and preheating are automatically completed before the target starting moment, and to reduce the heating energy consumption and the preheating cost during preheating. The primary measure for reducing the heating energy consumption is to use the range extender cooperative preheating device to perform the preheating operation, and the second measure is to make the range extender work in a higher efficiency working condition as much as possible under the premise of the primary measure, so as to reduce the economic cost of the range extender during the preheating process. It can be understood that the highest efficiency of the range extender corresponds to the best efficiency point. If the range extender can meet the primary measure at the best efficiency point, the working condition of the best efficiency point is directly applied. If not, other working conditions with better performance are selected. Therefore, in some embodiments, the process of determining the operating parameters of the range extender of the target vehicle and the charging duration can include:

[0072] 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 amount of the power battery under the condition that the time consumption of the power battery charged by the range extender at the optimal operating parameters is the minimum charging duration;

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

[0074] In the case that the theoretical charge change amount is not greater than the real-time charge gap amount, determining the operating parameters of the range extender as the optimal operating parameters, and determining the charging duration corresponding to the optimal operating parameters.

[0075] It can be understood that the theoretical charge change amount is the charge amount that the power battery can obtain if the range extender works at the minimum charging duration required by the preheating device at the optimal operating parameters. The real-time charge gap amount is the real-time charge gap amount that the range extender can charge the current power battery at most under the constraint of the power battery.

[0076] The comparison between the theoretical charge change amount and the real-time charge gap amount is essentially the comparison between the minimum charging duration and the gap charging duration, that is, the time consumption of the range extender charging the power battery at the optimal operating parameters to make the preheating state of charge rise to the target state of charge.

[0077] If the theoretical state of charge variation is greater than the real-time state of charge gap, the minimum charging duration is greater than the gap charging duration. When the power battery reaches the target state of charge, only the real-time state of charge gap is filled, and the power battery cannot be charged to the theoretical state of charge variation based on the charging constraint. That is, the range extender is charged too fast under the optimal operating parameter, and the time length to reach the target state of charge is relatively short, which is insufficient to continuously support the preheating device in the entire heating time length. If the theoretical state of charge variation is not greater than the real-time state of charge gap, the minimum charging duration is not greater than the gap charging duration, which means that even if the range extender works at the optimal operating parameter, the gap charging duration required to fill the real-time state of charge gap is relatively long, and is not less than the minimum charging duration, which can continuously support the preheating device in the entire heating time length.

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

[0079] Further, if the range extender cannot use the optimal operating parameter under the current condition, the adjustment scheme needs to be adjusted. The first adjustment idea is to select other operating parameters to improve the charging efficiency of the range extender as much as possible while ensuring that the actual charging duration is not less than the minimum charging duration, which can be determined by looking up a table. The second adjustment idea is to first consume the electric energy of the power battery through the electric heating mode of the preheating device. At this time, the real-time temperature of the target vehicle will rise, and the state of charge of the power battery will decrease. Then, the charging and preheating operation under the cooperation of the range extender and the preheating device is planned again.

[0080] According to the first adjustment idea, in some embodiments, the process of determining the operating parameter and the charging duration of the range extender of the target vehicle can further include:

[0081] In the case where the theoretical state of charge variation is greater than the real-time state of charge gap, based on the real-time state of charge gap and the heating time length, the operating charging duration in the preset operating relationship that is not less than the minimum charging duration and corresponds to the highest efficiency is taken as the charging duration of the range extender by querying the preset operating relationship, and the operating parameter corresponding to the charging duration is determined based on the preset operating relationship.

[0082] It can be understood that the preset operation relationship can be represented by a table, and is determined based on the specific configuration of the range extender and the power battery. The preset operation relationship includes a plurality of groups of operation data. Each group of operation data includes at least an operation parameter of the range extender, an efficiency of the range extender, and an operation charging duration. The operation parameter includes a speed and a torque of the range extender. The efficiency of the range extender refers to an oil-electricity conversion rate. The operation charging duration refers to a time consumption for charging the real-time state of charge of the power battery to the target state of charge under the operation parameter and the efficiency. The specific calculation process is as follows:

[0083]

[0084] wherein, Δt i , P Gi , η Gi , Tn i and n i are the operation charging duration, the charging power, the efficiency, the torque and the speed in the i-th group of operation data, respectively. SOC m and SOC t are the target state of charge and the pre-heating state of charge, respectively. Q b is the battery pack capacity of the power battery.

[0085] It can be understood that the calculation of the best efficiency point in the above can also be based on the above formula. In fact, the operation data corresponding to the best efficiency point can also be included in the preset operation relationship. In one specific embodiment, the size judgment of the theoretical state of charge variation and the real-time state of charge gap can not be performed, and the corresponding operation parameter and charging duration can be directly determined based on the minimum charging duration.

[0086] According to the second adjustment idea, in some embodiments, the process of determining the operation parameter and the charging duration of the range extender of the target vehicle can further include:

[0087] In the case where the theoretical state of charge variation is greater than the real-time state of charge gap, determining an electric heating duration of the preheating device based on the power supply of the power battery, and a power consumption of the power battery corresponding to the electric heating duration;

[0088] Based on the electric heating duration and the power consumption, updating the pre-heating temperature and the pre-heating state of charge, and performing the steps of determining the heating duration of the preheating device of the target vehicle based on the pre-heating temperature and the pre-heating state of charge, and determining the operation parameter and the charging duration of the range extender of the target vehicle;

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

[0090] updating the pre-heating state of charge to a difference between the pre-heating state of charge and the power consumption;

[0091] The pre-heating temperature is updated as: the temperature after the pre-heating device performs the pre-heating operation in the electric heating mode for the electric heating duration, with the pre-heating temperature as the starting point.

[0092] It can be understood that this part is still a planning calculation of energy, assuming that the pre-heating device is powered by the power battery for a period of time, after which the temperature and the state of charge of the battery will change, the changed temperature and the state of charge of the battery are calculated as the pre-heating temperature and the pre-heating state of charge, and the details of the cooperation between the range extender and the pre-heating device are re-planned and calculated based on the calculation results.

[0093] It can be understood that the power consumption of the power battery is proportional to the electric heating duration. If an electric heating duration is first determined according to the preset condition, for example, it is uniformly 3 minutes, and for example, the real-time state of charge and the electric heating duration are positively correlated in the preset condition, the corresponding power consumption can be directly determined, and then the pre-heating state of charge is updated. The updated pre-heating state of charge = the pre-heating state of charge before updating - the power consumption. In addition, the power consumption corresponding to the current electric heating mode can also be inversely deduced according to the planning requirements, such as requiring the subsequent range extender to work under a certain group of operating data, or requiring the subsequent range extender to work with optimal operating parameters, and then inversely deducing the state of charge of the power battery before charging, and then determining the electric heating duration.

[0094] Correspondingly, the updated pre-heating temperature is positively correlated with the electric heating duration, and the longer the electric heating duration, the higher the updated pre-heating temperature. Specifically, the electric heating efficiency of the electric heating mode of the pre-heating device and the electric heating duration, and the temperature rise model of the target vehicle can be determined.

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

[0096] Further, when the pre-heating device is powered by the power battery according to the planning, when the electric heating mode of the pre-heating device is actually operated, it also needs to be set. Correspondingly, based on the target starting time, the heating duration and the charging duration, the heating starting time and the charging starting time are determined, and the heating starting time and the charging starting time are determined.

[0097] The electric heating starting time is determined based on the target starting time, the heating duration, the charging duration and the electric heating duration.

[0098] Wait until the electric heating starting time, and control the pre-heating device to perform the pre-heating operation in the electric heating mode for the electric heating duration.

[0099] The purpose of the electric heating mode is to consume the electric energy of the power battery, so the electric heating consumption can be performed before the operation of the range extender, or the electric heating consumption can be performed during the operation of the range extender. Generally, the electric heating is performed at the initial stage or the middle stage of the operation of the range extender, if the range extender has charged the power battery to the target state of charge and then performs the electric heating consumption, and then the range extender is charged again, there is a certain energy loss in repeatedly starting the range extender. Therefore, the starting time of the electric heating is necessarily earlier than the target starting time by at least the electric heating time length, and generally, the starting time of the electric heating can be earlier than, the same as, or the same as the starting time of the charging, and the electric heating process and the charging process and the heating process based on the cooperation of the range extender can overlap in time. The specific time can be set according to the equipment operation characteristics of the target vehicle, and is not limited here.

[0100] It can be understood that whether the first adjustment idea or the second adjustment idea is specifically selected, a certain adjustment idea can be selected by default, or the two adjustment ideas can be set with corresponding selection conditions, for example, the size of the difference between the theoretical state of charge change and the real-time state of charge gap is used as a selection condition, if the difference is small, the first one is selected, at this time, 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 case that the real-time state of charge gap is not less than zero, which is inevitable in the case that the target state of charge is 100%, but 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 is adjusted to a larger value and then it is considered which adjustment idea to select.

[0101] Further, in the second adjustment idea, when the running parameter and the charging time length are determined based on the updated pre-heating state of charge, the same can be selected in the two adjustment ideas, or a certain one can be selected according to a certain selection condition. The specific idea selection can be adjusted according to the actual situation and user settings, and is not limited here.

[0102] It can be understood that in order to avoid the case that the real-time state of charge of the power battery is too high, resulting in that the charging time of the range extender is too short and the pre-heating operation is difficult to perform, a maximum charging limit value can be set in advance to limit the charging of the range extender to the power battery not to exceed the maximum charging limit value in the normal operation process of the target vehicle. Therefore, in some embodiments, before the target starting time of the target vehicle is obtained, the method can further include:

[0103] obtaining a pre-heating control state of the target vehicle;

[0104] enable the maximum state of charge limit value in the case that the preheating control state is in the enabled state; the maximum state of charge limit value is less than the target state of charge and is used to limit the state of charge of the power battery to not exceed the maximum state of charge limit value during driving of the target vehicle;

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

[0106] disable the maximum state of charge limit value in the case that the preheating control state is in the disabled state.

[0107] It can be understood that whether the maximum state of charge limit value is enabled is determined based on a user instruction setting corresponding to the preheating control state. If the user intends to turn off automatic preheating, the preheating control state is set to the disabled state through the user instruction, at which time the maximum state of charge 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 which time the maximum state of charge limit value is also in the enabled state, and in other application scenarios outside the application scenario of the present scheme, the charging of the range extender to the power battery is not allowed to exceed the maximum state of charge limit value. In the case that the maximum state of charge limit value is enabled, the real-time state of charge in the present scheme does not exceed the maximum state of charge limit value, so as to provide sufficient charging space for the range extender, so that the charging time of the range extender meets the cooperative demand of the preheating device.

[0108] Further, in some operation strategies of the target vehicle, the range extender is required to charge the power battery and keep the power battery at the maximum state of charge limit value. In this case, when the preheating method of the present scheme is executed, if it can be predicted that the power battery has little power consumption after the target vehicle is parked, the preheat state of charge of the power battery can be directly replaced by the maximum state of charge limit value. At this time, in the pre-set operation relationship in the above embodiment, since the preheat state of charge is also determined, the corresponding operation charging time can be directly determined, so that all operation data in the pre-set operation relationship are determined values. The implementation of the whole scheme is based on the preheat temperature to determine the heating time and the minimum charging time, based on the minimum charging time to directly query the pre-set operation relationship, to determine the charging time and the corresponding operation parameter, and then to determine the heating start time and the charging start time and perform the corresponding operation.

[0109] It can be understood that the preheating device in the above preheating operation takes the cooperation of the range extender as the main working mode. If the power battery of the target vehicle is in an external charging mode such as wireless charging or wired charging, the range extender can not be used, and the external power supply can be directly used to supply power to the preheating device to make the preheating device perform preheating operation in the electric heating mode. Taking wired charging as an example, before obtaining the preheat state of charge of the power battery of the target vehicle in some embodiments, the method further includes:

[0110] acquire a charging gun connection state of the target vehicle;

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

[0112] In the case that the charging gun connection state is not the connection normal state, perform an action of acquiring a pre-heat state of charge of a power battery of the target vehicle.

[0113] It can be understood that whether the preheating device can be powered externally is determined by detecting the charging gun connection state. If the charging gun connection state is the connection normal state, the preheating device can be powered externally. If the charging gun connection state is not the connection normal state, including the connection abnormal state, the unconnected state, etc., the preheating device cannot be powered externally, and then returns to the working mode of the range extender and the preheating device.

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

[0115] In addition, the maximum charging limit value is to ensure the smooth progress of the cooperative work. Once the preheating device is powered externally, the cooperative work is not needed, and the limit can be cancelled. That is, if the maximum charging limit value is currently set, the maximum charging limit value is not enabled in the case that the charging gun connection state is the connection normal state.

[0116] It can be understood that the specific parameters in the above scheme can be adjusted and reprocessed according to the actual situation and user demand. Since the accuracy of human body temperature perception is not very strict, the related parameters involved in the preheating method can be adaptively adjusted according to the equipment state of the target vehicle. The corresponding relationship of the parameters remains unchanged, and the order of determining the parameters can also be adjusted. As long as the preheating operation provides a more comfortable driving environment for the user than the outdoor environment.

[0117] The method in this application embodiment obtains the target start time of the target vehicle in advance, determines the charging start time of the range extender charging the power battery and the heating start time of the preheating device performing preheating operation in coordination with the range extender based on the preheating temperature and preheating state of charge. The range extender is then started to charge the power battery based on the charging start time, and the preheating device is started to perform the preheating operation based on the heating start time. Thus, at the target start time, the range extender completes charging of the power battery simultaneously with the completion of the preheating operation. This eliminates the need for users to plan and manually trigger the preheating operation. This application allows users to automatically plan and execute the preheating operation before the target start time simply by setting the target start time for the next vehicle use. This user-friendly preheating management provides a worry-free driving experience. Furthermore, this application uses the heat generated by the range extender charging for the preheating device to perform the preheating operation, significantly reducing the energy consumption of the preheating operation and improving economic efficiency.

[0118] All the above-mentioned optional technical solutions can be combined in any way to form the optional embodiments of this application, and will not be described in detail here. It should be understood that the sequence number of each step in the above embodiments does not mean the order of execution. 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 embodiments of this application.

[0119] The following are embodiments of the apparatus described in this application, which can be used to execute the embodiments of the method described in this application. For details not disclosed in the apparatus embodiments of this application, please refer to the embodiments of the method described in this application.

[0120] Figure 4 This is a schematic diagram of a preheating device for a range-extended vehicle provided in an embodiment of this application. Figure 4 As shown, the preheating device includes:

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

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

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

[0124] Analysis module 403 is also used to determine the heating start time and the charging start time based on the target start time, heating duration and charging duration;

[0125] 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 configured to wait until a heating start time, and control the preheating device to perform a preheating operation in cooperation with the range extender.

[0127] Compared with the prior art, the embodiment of the present application has at least the following beneficial effects: the embodiment of the present application acquires the target starting time of the target vehicle in advance, determines the charging start time of the range extender to charge the power battery and the heating start time of the preheating device to perform the preheating operation in cooperation with the range extender according to the preheating temperature and the preheating state of charge, and acts based on the charging start time and the heating start time, so that at the target starting time, the preheating operation is completed at the same time as the charging of the power battery by the range extender is completed. The user does not need to plan the triggering time of the preheating operation and manually trigger it. The present application can automatically plan and perform the preheating operation before the target starting time as long as the user sets the target starting time of the next use of the vehicle in advance. The user-friendly preheating management brings the user a worry-free driving experience. 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, which is more economical.

[0128] In an exemplary embodiment, the heating duration includes: a time consumption of the target vehicle from the preheating temperature to the target temperature when the preheating device performs the preheating operation in cooperation with the range extender;

[0129] The charging duration includes: a time consumption of the preheating state of charge from the preheating state of charge to the target state of charge when the range extender charges the power battery according to the operating parameter, and the charging duration is not less than a minimum charging duration corresponding to the heating duration, and the minimum charging duration is a difference between the heating duration and a preset waiting duration.

[0130] In an exemplary embodiment, the analysis module 403 is specifically configured to:

[0131] determine a theoretical state of charge variation of the power battery under the condition that the time consumption of the range extender to charge the power battery at the optimal operating parameter is the minimum charging duration;

[0132] determine the difference between the target state of charge and the preheating state of charge as a real-time state of charge gap;

[0133] determine the operating parameter of the range extender as the optimal operating parameter and determine the charging duration corresponding to the optimal operating parameter in the case that the theoretical state of charge variation is not greater than the real-time state of charge gap.

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

[0135] In a case that the theoretical state of charge variation is greater than the real-time state of charge gap, based on the real-time state of charge gap and the heating duration, the preset operation relationship is inquired, an operation charging duration corresponding to the highest efficiency and not less than the minimum charging duration in the preset operation relationship is taken as the charging duration of the range extender, and an operation parameter corresponding to the charging duration is determined based on the preset operation relationship.

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

[0137] In a case that the theoretical state of charge variation is greater than the real-time state of charge gap, the electric heating duration of the preheating device based on the power battery and the power consumption of the power battery corresponding to the electric heating duration are determined.

[0138] Based on the electric heating duration and the power consumption, the preheating temperature and the preheating state of charge are updated, the heating duration of the preheating device of the target vehicle is determined based on the preheating temperature and the preheating state of charge, and the operation parameter and the charging duration of the range extender of the target vehicle are determined.

[0139] Correspondingly, based on the target starting time, the heating duration and the charging duration, the heating starting time and the charging starting time are determined, and the method further comprises the following steps:

[0140] Based on the target starting time, the heating duration, the charging duration and the electric heating duration, the electric heating starting time is determined.

[0141] The preheating device is controlled to perform the preheating operation in the electric heating mode for the electric heating duration.

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

[0143] The charging gun connection state of the target vehicle is acquired.

[0144] In a case that the charging gun connection state is a normal connection state, the preheating device is controlled to perform the preheating operation in the electric heating mode based on the external power supply of the charging gun.

[0145] In a case that the charging gun connection state is not a normal connection state, the action of acquiring the preheating state of charge of the power battery of the target vehicle is performed.

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

[0147] The preheating control state of the target vehicle is acquired.

[0148] When the preheating control state is enabled, the maximum charging limit value is enabled; the maximum charging limit value is less than the target state of charge, which is used to: limit the state of charge of the power battery from not exceeding the maximum charging limit value during the driving of the target vehicle.

[0149] Perform the action of obtaining the target start time of the target vehicle;

[0150] When the preheating control is disabled, the maximum charging limit is not enabled.

[0151] Figure 5 This is a schematic diagram of the electronic device 5 provided in an embodiment of this 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, it implements the steps in the various method embodiments described above. Alternatively, when the processor 501 executes the computer program 503, it implements the functions of each module / unit in the various device embodiments described above.

[0152] Electronic device 5 can be a desktop computer, laptop, handheld computer, cloud server, or other electronic device. Electronic device 5 may include, but is not limited to, processor 501 and memory 502. Those skilled in the art will understand that... Figure 5 This is merely an example of electronic device 5 and does not constitute a limitation on electronic device 5. It may include more or fewer components than shown, or different components.

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

[0154] The memory 502 can be an internal storage unit of the electronic device 5, for example, a hard disk or a memory of the electronic device 5. The memory 502 can 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 can also include both the internal storage unit and the external storage device of the electronic device 5. 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 brevity of description, only the above division of functional units and modules is exemplified, and in actual application, the above functions can be completed by different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit, and the integrated unit can be realized in the form of hardware or in the form of software functional unit.

[0156] The integrated module / unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on this understanding, all or part of the processes in the above embodiment methods can also be completed by a computer program instructing related hardware, and the computer program can be stored in a computer readable storage medium. When the processor executes the computer program, the steps of each method embodiment described above can be implemented. The computer program can include computer program code, which can be in the form of source code, object code, executable file or some intermediate form. The computer readable storage medium can include any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, magnetic 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 examples are only used to illustrate the technical solutions of the present application, but not limit the same; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A method of preheating a range-extended vehicle, characterized by, The method comprises: obtaining a target starting time of a target vehicle; obtaining a pre-warming temperature of the target vehicle and a pre-warming state of charge of a power battery of the target vehicle; based on the pre-warming temperature and the pre-warming state of charge, determining a heating duration of a pre-warming device of the target vehicle, and determining an operating parameter and a charging duration of a range extender of the target vehicle; the heating duration comprises a time consumed by the target vehicle to rise from the pre-warming temperature to a target temperature when the pre-warming device performs a pre-warming operation under the cooperation of the range extender; the charging duration comprises a time consumed by the pre-warming state of charge to rise to a target state of charge when the range extender charges the power battery according to the operating parameter, the charging duration is not less than a minimum charging duration corresponding to the heating duration, and the minimum charging duration is a difference between the heating duration and a preset waiting duration; based on the target starting time, the heating duration and the charging duration, determining a heating starting time and a charging starting time; waiting until the charging starting time, and controlling the range extender to charge the power battery according to the operating parameter; waiting until the heating starting time, and controlling the pre-warming device to perform a pre-warming operation under the cooperation of the range extender.

2. The method of claim 1, wherein, The process of determining the operating parameter and the charging duration of the range extender of the target vehicle comprises: based on an optimal operating parameter corresponding to an optimal efficiency point of the range extender of the target vehicle, determining a theoretical state of charge variation of the power battery in a case that a time consumed by the power battery to be charged by the range extender according to the optimal operating parameter is the minimum charging duration; determining a difference between the target state of charge and the pre-warming state of charge as a real-time state of charge gap; in a case that the theoretical state of charge variation is not greater than the real-time state of charge gap, determining the operating parameter of the range extender as the optimal operating parameter, and determining a charging duration corresponding to the optimal operating parameter.

3. The method of claim 2, wherein, The process of determining the operating parameter and the charging duration of the range extender of the target vehicle further comprises: in a case that the theoretical state of charge variation is greater than the real-time state of charge gap, based on the real-time state of charge gap and the heating duration, determining, by querying a preset operating relationship, an operating charging duration corresponding to the highest efficiency in the preset operating relationship and not less than the minimum charging duration as the charging duration of the range extender, and determining an operating parameter corresponding to the charging duration based on the preset operating relationship.

4. The method of claim 2, wherein, The process of determining the operating parameter and the charging duration of the range extender of the target vehicle further comprises: in a case that the theoretical state of charge variation is greater than the real-time state of charge gap, determining an electric heating duration of the pre-warming device based on the power battery and a power consumption of the power battery corresponding to the electric heating duration; based on the electric heating duration and the power consumption, updating the pre-warming temperature and the pre-warming state of charge, and performing the steps of determining the heating duration of the pre-warming device of the target vehicle based on the pre-warming temperature and the pre-warming state of charge, and determining the operating parameter and the charging duration of the range extender of the target vehicle; Correspondingly, based on the target starting time, the heating duration and the charging duration, determining a heating start time and a charging start time further comprises: based on the target starting time, the heating duration, the charging duration and the electric heating duration, determining an electric heating start time; waiting until the electric heating start time, and controlling the preheating device to perform a preheating operation in an electric heating mode for the electric heating duration.

5. The method of claim 1, wherein, Before obtaining the pre-heat state of charge of the power battery of the target vehicle, further comprising: obtaining the charging gun connection state of the target vehicle; in the case of the charging gun connection state being a normal connection state, controlling the preheating device to preheat in an electric heating mode based on the external power supply of the charging gun; in the case of the charging gun connection state being other than the normal connection state, performing the action of obtaining the pre-heat state of charge of the power battery of the target vehicle.

6. The method according to any one of claims 1 to 5, characterized in that, Before obtaining the target starting time of the target vehicle, further comprising: obtaining the preheating control state of the target vehicle; in the case of the preheating control state being in an enabled state, enabling the maximum charge limit value; the maximum charge limit value is less than the target state of charge, and is used to limit the state of charge of the power battery to not exceed the maximum charge limit value during the driving of the target vehicle; performing the action of obtaining the target starting time of the target vehicle; in the case of the preheating control state being in a disabled state, disabling the maximum charge limit value.

7. A preheating device of a range extended vehicle, characterized by, comprising: a first obtaining module for obtaining a target starting time of a target vehicle; a second obtaining module for obtaining a pre-heat temperature of the target vehicle and obtaining a pre-heat state of charge of a power battery of the target vehicle; an analysis module for determining a heating duration of a preheating device of the target vehicle based on the pre-heat temperature and the pre-heat state of charge, and determining an operating parameter of a range extender of the target vehicle and a charging duration; the heating duration includes the time consumed by the target vehicle to rise from the pre-heat temperature to a target temperature when the preheating device performs a preheating operation under the cooperation of the range extender; the charging duration includes the time consumed by the pre-heat state of charge to rise to a target state of charge when the range extender charges the power battery according to the operating parameter, the charging duration is not less than a minimum charging duration corresponding to the heating duration, and the minimum charging duration is a difference between the heating duration and a preset waiting duration; the analysis module is further configured to determine a heating start time and a charging start time based on the target starting time, the heating duration and the charging duration; a control module for waiting until the charging start time and controlling the range extender to charge the power battery according to the operating parameter; the control module is further configured to wait until the heating start time and control the preheating device to perform a preheating operation under the cooperation of the range extender.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, The processor executes the computer program to implement the steps of the method of any one of claims 1 to 6.

9. A computer-readable storage medium storing a computer program, the computer program comprising instructions that, when executed by a computer, cause the computer to perform the method of any one of claims 1 to 8. The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 6.

Images