Vehicle range extender control method and device and vehicle terminal

Abstract

The invention relates to the technical field of range extender control, and discloses a vehicle range extender control method and device and a vehicle terminal. According to the method, the target vehicle in the power-off state is awakened, the charging permission parameter is obtained, and the automatic charging state of the vehicle range extender is determined according to the charging permission parameter, so that the vehicle range extender is started when the automatic charging state is the permission state; furthermore, the automatic charging state of the vehicle range extender is determined according to the power-off state duration, the remaining oil amount and parameters set by a user, so that the vehicle range extender is started under the condition that automatic charging is allowed, and the use frequency of the vehicle range extender and a power battery is reduced by controlling the automatic charging frequency; and the use cost and the maintenance cost of the vehicle are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of range extender control, and in particular to a vehicle range extender control method, device and vehicle terminal. Background Art

[0002] At present, plug-in hybrid electric vehicles (PHEV) and extended-range electric vehicles (EREV) occupy an important position in the new energy vehicle market due to their convenient charging and long driving range. With the vigorous development of intelligent technology, these models have further integrated innovative functions such as vehicle remote wake-up and intelligent low-voltage charging, greatly improving the user's driving convenience and experience. However, the addition of this series of intelligent features has also posed more severe challenges to the vehicle's power battery management system (BMS) and energy management strategy.

[0003] For example, when the vehicle is parked, the power battery, as a core energy storage component, will be affected by multiple factors such as remote operation, intelligent function operation and natural battery attenuation, resulting in a gradual decrease in power. If the battery power is too low, it will not only affect the vehicle's ability to start immediately, but may also accelerate battery aging and shorten its service life. In order to address this problem, many extended-range electric vehicles are equipped with an automatic charging function, which automatically starts the vehicle's range extender to charge the battery when the battery power is low, ensuring that the vehicle always maintains sufficient power reserves.

[0004] However, the frequent startup and shutdown of the vehicle range extender increases mechanical wear, accelerates the aging process of the range extender itself, and shortens its service life. Secondly, excessively frequent charging operations not only consume more fuel resources, but may also cause excessive charging and discharging of the power battery, thereby reducing its performance and life. Therefore, these factors jointly increase the use and maintenance costs of the vehicle range extender and power battery, bringing additional economic burdens to users. Summary of the invention

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] In view of the above-mentioned shortcomings of the prior art, the present application provides a vehicle range extender control method, device and vehicle terminal to reduce the maintenance cost of the vehicle range extender and power battery.

[0007] The present application provides a vehicle range extender control method, comprising: if a target vehicle is in a power-off state, waking up the target vehicle, wherein the target vehicle is provided with a power battery and a vehicle range extender; in response to the target vehicle being woken up, obtaining a charging permission parameter corresponding to the target vehicle, wherein the charging permission parameter includes at least one of a duration of the power-off state, a remaining fuel amount, and a user-set parameter; determining an automatic charging state of the vehicle range extender according to a comparison result between the charging permission parameter and a preset parameter threshold; if the automatic charging state is a permitted state, charging the power battery by turning on the vehicle range extender.

[0008] In one embodiment of the present application, waking up the target vehicle includes: obtaining the number of vehicle wake-ups of the target vehicle when the target vehicle is in a power-off state, and obtaining the power difference corresponding to the power battery, wherein the power difference is calculated based on the remaining battery power corresponding to the power battery for a preset minimum power threshold; if the number of vehicle wake-ups is less than the preset number threshold, matching is performed according to the vehicle ambient temperature corresponding to the target vehicle to obtain the battery self-decay rate, and a vehicle wake-up cycle is determined based on the battery self-decay rate and the power difference, wherein the battery self-decay rate is negatively correlated with the vehicle wake-up cycle, and the power difference is positively correlated with the vehicle wake-up cycle; if the number of vehicle wake-ups is greater than or equal to the preset number threshold, determining the vehicle wake-up cycle based on the power difference and a preset initial wake-up cycle, wherein the power difference is positively correlated with the vehicle wake-up cycle; and periodically waking up the target vehicle according to the vehicle wake-up cycle.

[0009] In one embodiment of the present application, the vehicle wake-up cycle is determined based on the battery self-decay rate and the charge difference, including: calculating the charge difference based on the battery self-decay rate to obtain a predicted decay duration, wherein the battery self-decay rate and the predicted decay duration are negatively correlated; calculating the predicted decay duration based on preset adjustment parameters to obtain a vehicle wake-up cycle, wherein the predicted decay duration is greater than or equal to the vehicle wake-up cycle.

[0010] In one embodiment of the present application, the vehicle wake-up cycle is determined based on the power difference and the preset initial wake-up cycle, including: obtaining multiple power intervals and cycle adjustment parameters corresponding to each of the power intervals; matching each of the power intervals according to the power difference, so as to take the power interval in which the power difference is located as the current interval; calculating the preset initial wake-up cycle according to the cycle adjustment parameter corresponding to the current interval to obtain the vehicle wake-up cycle, wherein the power difference is positively correlated with the cycle adjustment parameter, and the vehicle wake-up cycle is greater than or equal to the initial wake-up cycle.

[0011] In one embodiment of the present application, the target vehicle is periodically awakened according to the vehicle wake-up cycle, including: pre-setting a time interval sequence, the time interval sequence including a plurality of time intervals arranged in chronological order, and charging priorities corresponding to each of the time intervals, wherein each of the charging priorities is assigned a value according to a preset initial priority; obtaining a historical driving record of the target vehicle; performing statistics on the historical driving records according to each of the time intervals to obtain a driving frequency corresponding to each of the time intervals, and determining a peak interval and a valley interval from the time intervals according to the driving frequency; taking any interval as a target interval, and determining a time interval with a sequence after the target interval as a subordinate interval; in response to the target interval belonging to a valley interval, increasing the charging priority corresponding to the target interval; in response to the subordinate interval corresponding to the target interval belonging to a peak interval, increasing the charging priority corresponding to the target interval; determining a charging interval from each of the time intervals according to the charging priority, so as to periodically awaken the target vehicle according to the vehicle wake-up cycle within the charging interval.

[0012] In one embodiment of the present application, the method also includes: obtaining the vehicle ambient temperature of the target vehicle, and obtaining the remaining battery power of the power battery; calculating the preset minimum power threshold according to the vehicle ambient temperature according to a negative correlation to obtain a current power threshold; if the remaining battery power is greater than or equal to the current power threshold, the power battery is in a normal state; if the remaining battery power is less than the current power threshold, the power battery is in a low power state.

[0013] In one embodiment of the present application, determining the automatic charging state of the vehicle range extender according to the comparison result between the charging permission parameter and the preset parameter threshold includes: obtaining a first determination condition, a second determination condition and a third determination condition, wherein the first determination condition includes that the duration of the power-off state is greater than or equal to the preset power-off duration threshold, the second determination condition includes that the remaining fuel volume is greater than or equal to the preset fuel volume threshold, and the third determination condition includes that the user-set parameter is in the on state; if the target vehicle satisfies the first determination condition, the second determination condition and the third determination condition at the same time, the automatic charging state of the vehicle range extender is set to the allowed state; if the target vehicle does not meet the first determination condition, the second determination condition or the third determination condition, the automatic charging state of the vehicle range extender is set to the prohibited state; if the power battery is in a low power state and the automatic charging state is in the prohibited state, the user is reminded to charge the target vehicle.

[0014] In one embodiment of the present application, after charging the power battery by turning on the vehicle range extender, the method further includes at least one of the following: if it is detected that the range extender temperature of the vehicle range extender is greater than or equal to a preset fault threshold, or it is detected that the vehicle range extender is in a fault state, then turning off the vehicle range extender; if the remaining battery power of the target vehicle is greater than or equal to a preset maximum power threshold, then turning off the vehicle range extender.

[0015] The present application provides a vehicle range extender control device, comprising: a wake-up module, for waking up the target vehicle if the target vehicle is in a power-off state, wherein the target vehicle is provided with a power battery and a vehicle range extender; an acquisition module, for acquiring, in response to the target vehicle being awakened, a battery remaining power and a charging permission parameter corresponding to the target vehicle, wherein the charging permission parameter includes at least one of a duration of the power-off state, a remaining fuel amount, and a user-set parameter; a judgment module, for judging whether the power battery is in a low-power state according to the battery remaining power, and determining an automatic charging state of the vehicle range extender according to the charging permission parameter; and a control module, for charging the power battery by turning on the vehicle range extender if the power battery is in a low-power state and the automatic charging state is a permitted state.

[0016] The present application provides a vehicle terminal, comprising: a processor and a memory; the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the vehicle terminal executes the above method.

[0017] Beneficial effects of this application:

[0018] By waking up the target vehicle in the power-off state, obtaining the charging permission parameters, and determining the automatic charging state of the vehicle range extender according to the charging permission parameters, the vehicle range extender is turned on when the automatic charging state is the permitted state. In this way, compared with controlling the vehicle range extender only by the remaining battery power, the automatic charging state of the vehicle range extender is further determined by the duration of the power-off state, the remaining fuel volume and the user-set parameters, so that the vehicle range extender is turned on when automatic charging is allowed, and the use frequency of the vehicle range extender and the power battery is reduced by controlling the frequency of automatic charging, thereby reducing the use cost and maintenance cost of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a flow chart of a vehicle range extender control method in an embodiment of the present application;

[0020] Figure 2 is a flow chart of another vehicle range extender control method in an embodiment of the present application;

[0021] Figure 3 is a schematic structural diagram of a vehicle range extender control device in an embodiment of the present application;

[0022] Figure 4 It is a schematic diagram of the structure of a vehicle terminal in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and sub-samples in the embodiments can be combined with each other without conflict.

[0024] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0025] In the following description, numerous details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0026] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0027] Unless otherwise stated, the term "plurality" means two or more.

[0028] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0029] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0030] Combination Figure 1 As shown, the embodiment of the present disclosure provides a vehicle range extender control method, including:

[0031] Step S101, if the target vehicle is in a power-off state, wake up the target vehicle;

[0032] Among them, the target vehicle is provided with a power battery and a vehicle range extender;

[0033] Step S102, in response to the target vehicle being awakened, obtaining charging permission parameters corresponding to the target vehicle;

[0034] The charging permission parameter includes at least one of the duration of the power-off state, the remaining fuel volume and the user-set parameter;

[0035] Step S103, determining the automatic charging state of the vehicle range extender according to the comparison result between the charging permission parameter and the preset parameter threshold;

[0036] Step S104: If the automatic charging state is a permitted state, the power battery is charged by turning on the vehicle range extender.

[0037] The vehicle range extender control method provided by the embodiment of the present disclosure is adopted to wake up the target vehicle in the power-off state, obtain the charging permission parameters, determine the automatic charging state of the vehicle range extender according to the charging permission parameters, and turn on the vehicle range extender when the automatic charging state is the permitted state. In this way, compared with controlling the vehicle range extender only by the remaining battery power, the automatic charging state of the vehicle range extender is further determined by the duration of the power-off state, the remaining fuel volume and the user-set parameters, so that the vehicle range extender is turned on when automatic charging is allowed, and the use frequency of the vehicle range extender and the power battery is reduced by controlling the frequency of automatic charging, thereby reducing the use cost and maintenance cost of the vehicle.

[0038] In some embodiments, an automatic charging interface is displayed through the cockpit screen in the target vehicle; the user sets user setting parameters, minimum power threshold, maximum power threshold, power-off time threshold, fuel level threshold and other parameters through the automatic charging interface. When the user turns on the user setting parameters, a pop-up window will be displayed for the user to confirm again.

[0039] Optionally, waking up the target vehicle includes: obtaining the number of vehicle wake-up times when the target vehicle is in a power-off state, and obtaining the power difference corresponding to the power battery, wherein the power difference is calculated based on the remaining battery power to a preset minimum power threshold; if the number of vehicle wake-up times is less than the preset number threshold, matching is performed according to the vehicle ambient temperature corresponding to the target vehicle to obtain the battery self-decay rate, and determining the vehicle wake-up cycle based on the battery self-decay rate and the power difference, wherein the battery self-decay rate is negatively correlated with the vehicle wake-up cycle, and the power difference is positively correlated with the vehicle wake-up cycle; if the number of vehicle wake-up times is greater than or equal to the preset number threshold, determining the vehicle wake-up cycle based on the power difference and a preset initial wake-up cycle, wherein the power difference is positively correlated with the vehicle wake-up cycle; and periodically waking up the target vehicle according to the vehicle wake-up cycle.

[0040] In some embodiments, the power battery's self-attenuation rate is slow. To avoid frequent vehicle wake-ups, the first few wake-up times can be dynamically adjusted based on the vehicle's ambient temperature, remaining battery power, etc., thereby extending the wake-up cycle.

[0041] Optionally, the vehicle wake-up cycle is determined based on the battery self-decay rate and the charge difference, including: calculating the charge difference based on the battery self-decay rate to obtain a predicted decay time, wherein the battery self-decay rate and the predicted decay time are negatively correlated; calculating the predicted decay time according to preset adjustment parameters to obtain the vehicle wake-up cycle, wherein the predicted decay time is greater than or equal to the vehicle wake-up cycle.

[0042] In some embodiments, the battery self-decay table is queried based on the vehicle ambient temperature to calculate the predicted decay time for the remaining battery power to decay to a minimum power threshold according to the matched battery self-decay rate, and the current predicted decay time is reduced by 5 days as the vehicle wake-up cycle, where 5 days is a preset adjustment parameter.

[0043] Optionally, the vehicle wake-up cycle is determined based on the power difference and a preset initial wake-up cycle, including: obtaining multiple power intervals and cycle adjustment parameters corresponding to each power interval; matching each power interval according to the power difference, so as to take the power interval where the power difference is located as the current interval; calculating the preset initial wake-up cycle according to the cycle adjustment parameter corresponding to the current interval to obtain the vehicle wake-up cycle, wherein the power difference is positively correlated with the cycle adjustment parameter, and the vehicle wake-up cycle is greater than or equal to the initial wake-up cycle.

[0044] In some embodiments, the subsequent vehicle wake-up cycle is adjusted according to the power difference between the remaining battery power and the minimum power threshold. For example, if the power difference is less than 1%, the vehicle wake-up cycle is the initial wake-up cycle of 12 hours (hours). At the same time, for every 1% increase in the difference, the cycle adjustment parameter corresponding to the difference increases by 20%, that is, the duration of the vehicle wake-up cycle increases by 20%. The duration calculation formula of the vehicle wake-up cycle is as follows:

[0045]

[0046] In formula (1), T is the duration of the vehicle wake-up cycle, α is the cycle adjustment parameter, and T 预设 is the preset initial cycle, D is the power difference, D 初始 is the preset difference, β is the interval length of the power interval, Δα is the parameter adjustment amount corresponding to the period adjustment parameter, in this embodiment, T 预设 =12hr, D 初始 =1%, β=1%, Δα=20%.

[0047] Optionally, the target vehicle is periodically awakened according to the vehicle wake-up cycle, including: pre-setting a time interval sequence, the time interval sequence including multiple time intervals arranged in chronological order and charging priorities corresponding to each time interval, wherein each charging priority is assigned according to a preset initial priority; obtaining a historical driving record of the target vehicle; statistically analyzing the historical driving records according to each time interval to obtain a driving frequency corresponding to each time interval, and determining a peak interval and a valley interval from the time interval according to the driving frequency; taking any interval as a target interval, and determining a time interval after the target interval as a subordinate interval; in response to the target interval belonging to a valley interval, increasing the charging priority corresponding to the target interval; in response to the subordinate interval corresponding to the target interval belonging to a peak interval, increasing the charging priority corresponding to the target interval; determining a charging interval from each time interval according to the charging priority, so as to periodically wake up the target vehicle according to the vehicle wake-up cycle within the charging interval.

[0048] In some embodiments, a week is divided into seven time intervals according to the number of days, and the charging priority of each time interval is set to level 1; the historical driving records of the target vehicle in the past six months are obtained from the data center, including the start time, end time and other information of each driving; the driving frequency of each time interval is calculated, that is, the number of times the vehicle drives in the interval; according to the driving frequency, the three time intervals with the highest driving frequency are regarded as peak areas, and the three time intervals with the lowest driving frequency are regarded as valley intervals; each time interval is traversed, and if the current interval is a valley interval, its charging priority is increased by 1 level, and if the lower-level interval corresponding to the current interval is a peak interval, the charging priority of the current interval is increased by 2 levels. For example, if Monday is a peak interval and Sunday is a valley interval, the charging priority of Sunday is level 4; Sunday is determined as a charging interval according to the charging priority, and the target vehicle is periodically awakened according to the vehicle wake-up cycle on Sundays.

[0049] In some embodiments, a day can also be divided into 12 time intervals of 2 hours, so that a charging interval is determined in each time interval.

[0050] Optionally, the method also includes: obtaining the vehicle ambient temperature of the target vehicle, and obtaining the remaining battery power of the power battery; calculating a preset minimum power threshold according to a negative correlation with the vehicle ambient temperature to obtain a current power threshold; if the remaining battery power is greater than or equal to the current power threshold, the power battery is in a normal state; if the remaining battery power is less than the current power threshold, the power battery is in a low power state.

[0051] In some embodiments, after the target vehicle's BMS is powered off, it will automatically wake up after each vehicle wake-up cycle; the remaining battery power of the power battery will be detected through the BMS; if it is detected that the remaining battery power is less than the current power threshold, it is determined that the power battery is in a low-power state, the entire vehicle is woken up and a low-power flag is generated; if it is detected that the remaining battery power is greater than or equal to the current power threshold, the vehicle wake-up cycle is updated, the BMS is controlled to sleep, and the next wake-up cycle is entered.

[0052] In some embodiments, since low temperature may cause a decrease in the battery discharge capacity, in order to avoid the failure of extended-range starting and recharging due to insufficient discharge power of the power battery, the minimum power threshold and / or the maximum power threshold are dynamically learned through the vehicle ambient temperature. For example, the BMS collects the ambient temperature when it is woken up. If the ambient temperature is greater than or equal to -10°C (degrees Celsius), the minimum power threshold is not adjusted. If the ambient temperature is less than -10°C (degrees Celsius), the minimum power threshold will be increased by 1% for every 5°C decrease to obtain the current power threshold.

[0053] Optionally, determining the automatic charging state of the vehicle range extender according to the comparison result between the charging permission parameter and the preset parameter threshold includes: obtaining a first determination condition, a second determination condition and a third determination condition, wherein the first determination condition includes that the duration of the power-off state is greater than or equal to a preset power-off duration threshold, the second determination condition includes that the remaining fuel volume is greater than or equal to a preset fuel volume threshold, and the third determination condition includes that the user sets the parameter to be in the on state; if the target vehicle satisfies the first determination condition, the second determination condition and the third determination condition at the same time, the automatic charging state of the vehicle range extender is set to the allowed state; if the target vehicle does not meet the first determination condition, the second determination condition or the third determination condition, the automatic charging state of the vehicle range extender is set to the prohibited state; if the power battery is in a low power state and the automatic charging state is in the prohibited state, the user is reminded to charge the target vehicle.

[0054] In some embodiments, after the target vehicle is awakened by the BMS, if the target vehicle receives a low battery flag and meets the first, second and third judgment conditions, the target vehicle turns on the vehicle range extender; if the target vehicle receives a low battery flag but does not meet the first, second or third judgment conditions, the target vehicle pushes a low battery reminder to the user via an APP or text message. For example, the low battery reminder includes "Please charge your car in time if the battery is low and avoid parking for a long time."

[0055] Optionally, after charging the power battery by turning on the vehicle range extender, the method also includes at least one of the following: if it is detected that the range extender temperature of the vehicle range extender is greater than or equal to a preset fault threshold, or it is detected that the vehicle range extender is in a fault state, then turning off the vehicle range extender; if the remaining battery power of the target vehicle is greater than or equal to a preset maximum power threshold, then turning off the vehicle range extender.

[0056] In some embodiments, in order to avoid safety hazards caused by starting the range extender when the vehicle is in a closed or unsuitable environment for engine starting, the VDC needs to monitor the status of the vehicle in real time during the start-up of the range extender. If abnormal engine temperature or shutdown failure is detected, the VDC needs to immediately control the engine to shut down and the APP reminds the user of "abnormal range extender shutdown".

[0057] In some embodiments, after the vehicle range extender is started, if the SOC reaches the maximum power threshold, the range extender is controlled to shut down, the entire vehicle enters a power-off state, and enters the next wake-up cycle.

[0058] Combination Figure 2 As shown, the embodiment of the present disclosure provides a vehicle range extender control method, including:

[0059] Step S201, if the target vehicle is in a power-off state, determining the vehicle wake-up cycle according to the vehicle wake-up times and the power difference;

[0060] Among them, if the vehicle wake-up times are less than the preset times threshold, the vehicle ambient temperature corresponding to the target vehicle is matched to obtain the battery self-decay rate, and the vehicle wake-up period is determined according to the battery self-decay rate and the power difference. There is a negative correlation between the battery self-decay rate and the vehicle wake-up period, and there is a positive correlation between the power difference and the vehicle wake-up period.

[0061] If the vehicle wake-up times are greater than or equal to a preset times threshold, the vehicle wake-up period is determined according to the power difference and the preset initial wake-up period, and there is a positive correlation between the power difference and the vehicle wake-up period;

[0062] Step S202, periodically waking up the target vehicle according to the vehicle waking up cycle;

[0063] Step S203, in response to the target vehicle being awakened, obtaining the remaining battery power and charging permission parameters corresponding to the target vehicle;

[0064] The charging permission parameter includes at least one of the duration of the power-off state, the remaining fuel volume and the user-set parameter;

[0065] Step S204, determining whether the remaining battery power is greater than or equal to the minimum power threshold, if so, jump to step S202, if not, jump to step S205;

[0066] Step S205, determining the charging permission parameter according to the first determination condition, the second determination condition and the third determination condition to obtain the automatic charging state of the vehicle range extender;

[0067] Step S206, determining whether the automatic charging state is a permitted state, if so, jump to step S207, if not, jump to step S210;

[0068] Step S207, charging the power battery by turning on the vehicle range extender;

[0069] Step S208, determining whether the remaining battery power is greater than or equal to the maximum power threshold, if so, jump to step S209, if not, jump to step S207;

[0070] Step S209, turn off the vehicle range extender and jump to step S202.

[0071] Step S209, reminding the user to charge the target vehicle.

[0072] The vehicle range extender control method provided by the embodiment of the present disclosure is adopted to wake up the target vehicle in the power-off state, obtain the charging permission parameters, determine the automatic charging state of the vehicle range extender according to the charging permission parameters, and turn on the vehicle range extender when the automatic charging state is the permitted state. In this way, compared with controlling the vehicle range extender only by the remaining battery power, the automatic charging state of the vehicle range extender is further determined by the duration of the power-off state, the remaining fuel volume and the user-set parameters, so that the vehicle range extender is turned on when automatic charging is allowed, and the use frequency of the vehicle range extender and the power battery is reduced by controlling the frequency of automatic charging, thereby reducing the use cost and maintenance cost of the vehicle.

[0073] Combination Figure 3 As shown, an embodiment of the present disclosure provides a vehicle range extender control device, including a wake-up module 301 , an acquisition module 302 , a judgment module 303 and a control module 304 .

[0074] The wake-up module 301 is used to wake up the target vehicle if the target vehicle is in a power-off state, wherein the target vehicle is provided with a power battery and a vehicle range extender.

[0075] The acquisition module 302 is used to acquire the charging permission parameters corresponding to the target vehicle in response to the target vehicle being awakened, wherein the charging permission parameters include at least one of the duration of the power-off state, the remaining fuel volume and user-set parameters.

[0076] The judgment module 303 is used to determine the automatic charging state of the vehicle range extender according to the comparison result between the charging permission parameter and the preset parameter threshold.

[0077] The control module 304 is configured to charge the power battery by turning on the vehicle range extender if the automatic charging state is a permitted state.

[0078] The vehicle range extender control device provided by the embodiment of the present disclosure is used to wake up the target vehicle in the power-off state, obtain the charging permission parameters, determine the automatic charging state of the vehicle range extender according to the charging permission parameters, and turn on the vehicle range extender when the automatic charging state is the permitted state. In this way, compared with controlling the vehicle range extender only by the remaining battery power, the automatic charging state of the vehicle range extender is further determined by the duration of the power-off state, the remaining fuel volume and the user-set parameters, so that the vehicle range extender is turned on when automatic charging is allowed, and the use frequency of the vehicle range extender and the power battery is reduced by controlling the frequency of automatic charging, thereby reducing the use cost and maintenance cost of the vehicle.

[0079] The embodiment of the present disclosure also provides a vehicle terminal, including: a processor and a memory; the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the vehicle terminal executes the above method.

[0080] Figure 4 The structure diagram of the computer system of the vehicle terminal suitable for implementing the embodiment of the present application is shown. It should be noted that: Figure 4 The computer system 400 of the vehicle terminal shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0081] like Figure 4 As shown, the computer system 400 includes a central processing unit (CPU) 401, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 402 or the program loaded from the storage part 408 to the random access memory (RAM) 403, such as executing the method in the above embodiment. In the RAM 403, various programs and data required for system operation are also stored. The CPU 401, ROM 402 and RAM 403 are connected to each other through a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0082] The following components are connected to the I / O interface 405: an input section 406 including a keyboard, a mouse, etc.; an output section 407 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the I / O interface 405 as needed. A removable medium 411, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 410 as needed so that a computer program read therefrom is installed into the storage section 408 as needed.

[0083] The vehicle terminal disclosed in this embodiment includes a processor, a memory, a transceiver and a communication interface. The memory and the communication interface are connected to the processor and the transceiver and complete communication with each other. The memory is used to store computer programs, the communication interface is used to communicate, and the processor and the transceiver are used to run computer programs so that the vehicle terminal executes each step of the above method.

[0084] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent possible changes only. Unless explicitly required, separate components and functions are optional, and the order of operation can be changed. Parts and sub-samples of some embodiments may be included in or replace parts and sub-samples of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of a stated sub-sample, whole, step, operation, element, and / or component, but do not exclude the presence or addition of one or more other sub-samples, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0085] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. Technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. Technicians can clearly understand that for the convenience and simplicity of description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0086] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some sub-samples can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0087] The flowchart and block diagram in the accompanying drawings show the possible architecture, functions and operations of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and a part of the module, program segment or code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A vehicle range extender control method, characterized in that: include: If the target vehicle is in a power-off state, waking up the target vehicle, wherein the target vehicle is provided with a power battery and a vehicle range extender; In response to the target vehicle being awakened, obtaining a charging permission parameter corresponding to the target vehicle, wherein the charging permission parameter includes at least one of a duration of a power-off state, a remaining fuel amount, and a user-set parameter; determining an automatic charging state of the vehicle range extender according to a comparison result between the charging permission parameter and a preset parameter threshold; If the automatic charging state is a permitted state, the power battery is charged by turning on the vehicle range extender.

2. The method according to claim 1, characterized in that Waking up the target vehicle, comprising: Obtaining the number of vehicle wake-up times of the target vehicle when it is in a power-off state, and obtaining a power difference value corresponding to the power battery, wherein the power difference value is calculated based on a preset minimum power threshold value according to the remaining battery power corresponding to the power battery; If the vehicle wake-up times are less than the preset times threshold, the vehicle ambient temperature corresponding to the target vehicle is matched to obtain the battery self-decay rate, and the vehicle wake-up period is determined according to the battery self-decay rate and the power difference, wherein the battery self-decay rate is negatively correlated with the vehicle wake-up period, and the power difference is positively correlated with the vehicle wake-up period; If the vehicle wake-up times are greater than or equal to the preset times threshold, determining the vehicle wake-up period according to the power difference and the preset initial wake-up period, wherein the power difference is positively correlated with the vehicle wake-up period; The target vehicle is periodically awakened according to a vehicle awakening cycle.

3. The method according to claim 2, characterized in that Determining a vehicle wake-up period according to the battery self-attenuation rate and the power difference includes: The power difference is calculated according to the battery self-decay rate to obtain a predicted decay time, wherein the battery self-decay rate and the predicted decay time are negatively correlated; The predicted attenuation duration is calculated according to a preset adjustment parameter to obtain a vehicle wake-up period, wherein the predicted attenuation duration is greater than or equal to the vehicle wake-up period.

4. The method according to claim 2, characterized in that: Determining a vehicle wake-up cycle according to the power difference and a preset initial wake-up cycle includes: Acquire multiple power intervals and period adjustment parameters corresponding to each of the power intervals; Matching each of the power intervals according to the power difference, so as to take the power interval in which the power difference is located as the current interval; The preset initial wake-up cycle is calculated according to the cycle adjustment parameter corresponding to the current interval to obtain the vehicle wake-up cycle, wherein the power difference is positively correlated with the cycle adjustment parameter, and the vehicle wake-up cycle is greater than or equal to the initial wake-up cycle.

5. The method according to claim 2, characterized in that: The target vehicle is periodically awakened according to a vehicle awakening cycle, including: Presetting a time interval sequence, the time interval sequence includes a plurality of time intervals arranged in chronological order, and a charging priority corresponding to each of the time intervals, wherein each of the charging priorities is assigned a value according to a preset initial priority; Obtaining the historical driving record of the target vehicle; The historical driving records are counted according to each of the time intervals to obtain the driving frequencies corresponding to each of the time intervals, and a peak interval and a valley interval are determined from the time intervals according to the driving frequencies; Taking any interval as the target interval, and determining the time interval after the target interval as the subordinate interval; In response to the target interval belonging to a valley interval, increasing the charging priority corresponding to the target interval; In response to the lower level interval corresponding to the target interval belonging to a peak interval, increasing the charging priority corresponding to the target interval; A charging interval is determined from each of the time intervals according to the charging priority, so as to periodically wake up the target vehicle according to a vehicle wake-up cycle within the charging interval.

6. The method according to any one of claims 1 to 5, characterized in that: The method further comprises: Acquiring the vehicle ambient temperature of the target vehicle and acquiring the remaining battery power of the power battery; Calculating a preset minimum power threshold according to the vehicle ambient temperature in a negative correlation relationship to obtain a current power threshold; If the remaining power of the battery is greater than or equal to the current power threshold, the power battery is in a normal state; If the remaining battery power is less than the current power threshold, the power battery is in a low power state.

7. The method according to any one of claims 1 to 5, characterized in that: Determining the automatic charging state of the vehicle range extender according to a comparison result between the charging permission parameter and a preset parameter threshold value includes: Acquire a first determination condition, a second determination condition, and a third determination condition, wherein the first determination condition includes that the duration of the power-off state is greater than or equal to a preset power-off duration threshold, the second determination condition includes that the remaining fuel volume is greater than or equal to a preset fuel volume threshold, and the third determination condition includes that the user-set parameter is in an on state; If the target vehicle satisfies the first determination condition, the second determination condition and the third determination condition at the same time, setting the automatic charging state of the vehicle range extender to a permitted state; If the target vehicle does not meet the first determination condition, the second determination condition or the third determination condition, setting the automatic charging state of the vehicle range extender to a prohibited state; If the power battery is in a low power state and the automatic charging state is a prohibited state, the user is reminded to charge the target vehicle.

8. The method according to claim 6, characterized in that After charging the power battery by turning on the vehicle range extender, the method further includes at least one of the following: If it is detected that the range extender temperature of the vehicle range extender is greater than or equal to a preset fault threshold, or if it is detected that the vehicle range extender is in a fault state, shutting down the vehicle range extender; If the remaining battery power of the target vehicle is greater than or equal to a preset maximum power threshold, the vehicle range extender is turned off.

9. A vehicle range extender control device, characterized in that: include: A wake-up module, used to wake up the target vehicle if the target vehicle is in a power-off state, wherein the target vehicle is provided with a power battery and a vehicle range extender; an acquisition module, configured to acquire, in response to the target vehicle being awakened, a charging permission parameter corresponding to the target vehicle, wherein the charging permission parameter includes at least one of a duration of a power-off state, a remaining fuel amount, and a user-set parameter; A judgment module, used to determine the automatic charging state of the vehicle range extender according to a comparison result between the charging permission parameter and a preset parameter threshold; A control module is used to charge the power battery by turning on the vehicle range extender if the automatic charging state is a permitted state.

10. A vehicle terminal, characterized in that: include: Processor and memory; The memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the vehicle terminal executes the method according to any one of claims 1 to 8.

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