Control method, system and device of extended-range recreational vehicle and computer readable storage medium

Abstract

The application discloses a control method, system and device of a range-extending motor home and a computer readable storage medium, and relates to the technical field of vehicle control. The method comprises the following steps: acquiring a current time and a residual power of the range-extending motor home, and judging whether the current time is in a preset rest period; if the current time is in the preset rest period, judging whether the residual power is higher than a preset minimum low power threshold; and if the residual power is not higher than the preset minimum low power threshold, controlling a range extender of the range-extending motor home to run at a preset low power until the residual power reaches a preset maximum low power threshold. The application improves the safety and comfort of the motor home user in the rest period.

Description

Technical Field

[0001] The present invention relates to the field of vehicle control technology, and in particular to a control method, system, device and computer-readable storage medium for a range-extended recreational vehicle. Background Art

[0002] In recent years, with the improvement of people's living standards, RVs have gradually become more popular. Water and electricity are of great concern to all RV users. Adequate water and electricity systems can make long journeys more comfortable and relaxing. New energy pure electric RVs draw power from the vehicle's high-voltage battery. However, in remote areas, such as non-campsites or when there are no available charging stations nearby, users may find it difficult to charge the vehicle in a timely manner. Consequently, if the RV cannot quickly recharge at night, electrical appliances such as air conditioning, lights, and refrigerators will not function, affecting the safety and comfort of RV users while they rest.

[0003] The above content is only used to assist in understanding the technical solution of the present invention and does not constitute an admission that the above content is prior art. Summary of the Invention

[0004] The main purpose of the present invention is to provide a control method for a range-extended RV, aiming to solve the technical problem that the safety and comfort of RV users during rest are affected when electric energy cannot be quickly replenished.

[0005] To achieve the above object, the present invention provides a control method for a range-extended RV, the control method comprising the following steps:

[0006] Obtain the current time and the remaining power of the extended-range RV, and determine whether the current time is in a preset rest period;

[0007] If the current moment is in a preset rest period, determining whether the remaining power is higher than a preset minimum low power threshold;

[0008] If the remaining power is not higher than a preset minimum low power threshold, the range extender of the range-extended RV is controlled to operate at a preset low power until the remaining power reaches a preset maximum low power threshold.

[0009] Optionally, the step of controlling the range extender of the range-extended RV to operate at a preset low power includes:

[0010] controlling the range extender of the range-extended RV to operate at a preset low power, and collecting a current noise decibel value of the range-extended RV;

[0011] According to the decibel difference between the current noise decibel value and the preset decibel threshold, querying a preset decibel difference and correction coefficient mapping table to obtain a corresponding target correction coefficient;

[0012] According to the target correction coefficient, the preset low power is corrected to obtain a new preset low power, and the range extender of the range extended house car is controlled to operate at the new preset low power.

[0013] Optionally, before the step of controlling the range extender of the range extended house car to operate at the preset low power until the remaining electric quantity reaches the preset maximum low electric quantity threshold when the remaining electric quantity is not higher than the preset minimum low electric quantity threshold, the method further comprises:

[0014] obtaining a current power consumption of the range extended house car and an interval duration between the current time and an end time of a preset rest period;

[0015] obtaining an estimated power consumption according to the current power consumption and the interval duration;

[0016] obtaining the preset maximum low electric quantity threshold according to the preset minimum low electric quantity threshold and the estimated power consumption.

[0017] Optionally, after the step of obtaining an estimated power consumption according to the current power consumption and the interval duration, the method further comprises:

[0018] obtaining a corresponding charging duration according to the estimated power consumption and the preset low power;

[0019] judging whether the charging duration exceeds a preset duration threshold;

[0020] if the charging duration exceeds the preset duration threshold, obtaining a new estimated power consumption according to the preset duration threshold and the preset low power.

[0021] Optionally, before the steps of obtaining a current time and a remaining electric quantity of the range extended house car and judging whether the current time is in a preset rest period, the method further comprises:

[0022] when receiving a preset camping instruction of a user, judging whether a vehicle state of the range extended house car meets a preset camping condition;

[0023] if the vehicle state meets the preset camping condition, performing the steps of obtaining a current time and a remaining electric quantity of the range extended house car and judging whether the current time is in a preset rest period.

[0024] Optionally, the vehicle state comprises a current speed, a current gear and an opening degree of an accelerator pedal, and the step of judging whether the vehicle state of the range extended house car meets the preset camping condition comprises:

[0025] judging whether the current speed is lower than a preset minimum speed, whether the current gear is a parking gear and whether the opening degree of the accelerator pedal is lower than a preset minimum opening degree;

[0026] If the current vehicle speed is lower than a preset minimum vehicle speed, the current gear is the parking gear, and the accelerator pedal opening is lower than a preset minimum opening, it is determined that the vehicle state of the extended-range RV meets the preset camping conditions.

[0027] Optionally, after the steps of obtaining the current time and the remaining power, and determining whether the current time is in a preset rest period, the method further includes:

[0028] If the current moment is not in the preset rest period, determining whether the remaining power is higher than a preset minimum high power threshold;

[0029] If the remaining power is not higher than a preset minimum high power threshold, the range extender of the range-extended RV is controlled to operate at a preset high power until the remaining power reaches a preset maximum high power threshold.

[0030] In addition, to achieve the above-mentioned object, the present invention further provides a control system for a range-extended RV, the control system of the range-extended RV comprising:

[0031] A first judgment module is used to obtain the current time and the remaining power of the extended-range RV, and to determine whether the current time is in a preset rest period;

[0032] A second judgment module is used to judge whether the remaining power is higher than a preset minimum low power threshold if the current moment is in a preset rest period;

[0033] The control module is configured to control the range-extended RV to operate at a preset low power when the remaining power is not higher than a preset minimum low power threshold until the remaining power reaches a preset maximum low power threshold.

[0034] In addition, to achieve the above-mentioned purpose, the present invention also provides a control device for an extended-range RV, which includes: a memory, a processor, and a computer program stored in the memory and runnable on the processor, and when the computer program is executed by the processor, the steps of the method described in any one of the above items are implemented.

[0035] In addition, to achieve the above-mentioned purpose, the present invention also provides a computer-readable storage medium, on which a control program of the extended-range RV is stored. When the control program of the extended-range RV is executed by a processor, the steps of any of the methods described above are implemented.

[0036] The application provides a control method of a range-extended motor home. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 A device structure schematic diagram of a hardware running environment related to the embodiment scheme of the application is shown in the figure.

[0038] Figure 2 A flowchart of the control method of the range-extended motor home according to the first embodiment of the application is shown in the figure.

[0039] Figure 3 A flowchart of the control method of the range-extended motor home according to the second embodiment of the application is shown in the figure.

[0040] Figure 4 A flowchart of an optional embodiment of the control method of the range-extended motor home is shown in the figure.

[0041] Figure 5 A structure schematic diagram of the control system of the range-extended motor home related to the embodiment scheme of the application is shown in the figure.

[0042] The implementation, functional features and advantages of the application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, but not all the embodiments of the application. Based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0044] The term “and / or” used in the present document only describes an association relationship of associated objects, and indicates that three relationships may exist, for example, A and / or B may represent three cases of A existing alone, A and B existing together, and B existing alone.

[0045] The terms “first” and “second” and the like in the description and claims of the present application are used to distinguish different objects, and are not used to describe a specific order of the objects. For example, a first target object and a second target object are used to distinguish different target objects, and are not used to describe a specific order of the target objects.

[0046] In the embodiments of the present application, the words such as “exemplary” or “for example” are used to mean serving as an example, illustration, or description. Any embodiment or design scheme described as “exemplary” or “for example” in the embodiments of the present application should not be interpreted as being more preferred or having more advantages than other embodiments or design schemes. Rather, the words such as “exemplary” or “for example” are intended to present the relevant concept in a specific manner.

[0047] It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0048] In recent years, with the improvement of people's living standards, motor homes have gradually begun to popularize. Water and electricity are very concerned by all motor home users. Adequate water and electricity system can make long-distance travel more comfortable. New energy pure electric motor home uses the high-voltage battery energy of the whole vehicle to obtain electric energy. However, in remote non-operating areas or nearby special circumstances where there is no available charging pile, users may have difficulty in charging the whole vehicle in time. Therefore, in the case that the motor home cannot quickly supplement the electric energy at night, the air conditioner, light, refrigerator and other electrical appliances in the motor home cannot be used, which affects the safety and comfort of the motor home users during the rest period.

[0049] The traditional power motor home usually obtains electric energy by connecting an external generator, installing a solar panel, and increasing a 24V battery when parked for power supply. The convenience and safety during use are poor.

[0050] The control method of the range-extending motor home of the present application will be described below in combination with some embodiments:

[0051] The range-extending motor home is a motor home configured with a range extender, which means that the electric vehicle uses other energy (such as gasoline) to supplement electric energy in the case of insufficient battery power. Its main working feature is to work in pure electric mode most of the time and work in range-extending mode in a few cases, that is, the electric energy generated by the range extender is supplied to the motor through the battery, and the battery can also be charged.

[0052] The execution subject of the control method of the extended-range RV of the present invention can be the control device of the extended-range RV, and the control device of the extended-range RV can be a VCU (Vehicle Control Unit), PC (Personal Computer), tablet computer, portable computer or server and other devices.

[0053] The present invention obtains the current moment and the remaining power of the extended-range RV, and determines whether the current moment is in a preset rest period; if the current moment is in a preset rest period, it determines whether the remaining power is higher than a preset minimum low-power threshold; if the remaining power is not higher than the preset minimum low-power threshold, it controls the range extender of the extended-range RV to operate at a preset low power until the remaining power reaches a preset maximum low-power threshold. Therefore, the present invention uses the range extender of the extended-range RV to generate electricity, which can solve the problem of insufficient power during the rest period. On the one hand, controlling the range extender of the extended-range RV to operate at a preset low power can ensure that the noise generated by the range extender of the extended-range RV when operating at the preset low power is small, avoiding affecting the user's rest state; on the other hand, it can maintain the remaining power of the extended-range RV within a lower power range and reduce the working time of the range extender, thereby improving the safety and comfort of the RV user during the rest period.

[0054] like Figure 1 As shown, Figure 1 This is a schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present invention.

[0055] like Figure 1 As shown, the control device of the extended-range RV may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and optionally the user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (WI-FI) interface). The memory 1005 may be a high-speed random access memory (RAM) memory, or a stable non-volatile memory (NVM), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0056] Those skilled in the art can understand that, Figure 1 The device structure shown in the above figure does not constitute a limitation on the control device of the range-extended recreational vehicle, and can include more or fewer components than the figure, or combine certain components, or different component arrangements.

[0057] As Figure 1 The memory 1005 as a computer storage medium can include an operating system, a network communication module, a user interface module, and a control application program of the range-extended recreational vehicle.

[0058] In Figure 1 In the device shown in the above figure, the processor 1001 can be used to call the control application program of the range-extended recreational vehicle stored in the memory 1005, and perform the operations of the control method of the range-extended recreational vehicle in each of the following embodiments.

[0059] Referring to Figure 2 , Figure 2 The flowchart of the first embodiment of the control method of the range-extended recreational vehicle of the present application.

[0060] The first embodiment of the present application provides a control method of a range-extended recreational vehicle, which comprises the following steps:

[0061] Step S100, obtaining the current time and the remaining power of the range-extended recreational vehicle, and determining whether the current time is in a preset rest period;

[0062] The range-extended recreational vehicle can obtain time information from a T-BOX (Telematics BOX, vehicle-mounted remote information processor) through a vehicle controller to determine the current time. It can also collect the SOC (State Of Charge) of the range-extended recreational vehicle through the vehicle controller to determine the remaining power of the range-extended recreational vehicle. Then determine whether the current time is in a preset rest period. The preset rest period can be a rest period set by the manufacturer in advance, for example, 20:00 at night to 08:00 in the daytime, or a rest period set by the user. Of course, it can be understood that the preset rest period can be multiple, and the preset rest period is not necessarily limited to night, for example, the preset rest period can also be from 12:00 to 15:00 in the daytime.

[0063] Further, before the step of obtaining the current time and the remaining power of the range-extended recreational vehicle, and determining whether the current time is in a preset rest period in step S100, the step comprises:

[0064] Step S110, when receiving a preset camping instruction of the user, determining whether the vehicle state of the range-extended recreational vehicle meets a preset camping condition;

[0065] In step S120, if the vehicle state meets the preset camping condition, the following step is performed: obtaining the current time and the remaining power of the extended-range motor home, and determining whether the current time is in the preset resting period.

[0066] Specifically, a corresponding camping mode button can be arranged on the extended-range motor home. When the user presses the camping mode button, it is considered that the preset camping instruction of the user is received. Of course, the user can also issue the preset camping instruction in other ways, for example, through a terminal device (such as a smart phone, a tablet computer, etc.) in communication connection with the control device of the extended-range motor home.

[0067] When the preset camping instruction of the user is received, the vehicle state of the extended-range motor home can be obtained, wherein the vehicle state can include current speed, current gear, throttle pedal opening degree and the like. Then, it is determined whether the vehicle state meets the preset camping condition, and the preset camping condition is a condition for determining whether the vehicle is in a stopped driving state, for example, the speed is zero for a long time, the current gear is a parking gear, and the like, so as to determine whether the extended-range motor home is still in a driving state. If the vehicle state meets the preset camping condition, it indicates that the extended-range motor home is in a stopped driving state, and then step S100 is performed. If the vehicle state does not meet the preset camping condition, it indicates that the extended-range motor home is still in a driving state, and the preset camping instruction can be a false touch, and then step S100 is not performed.

[0068] In this embodiment, when the preset camping instruction of the user is received, the vehicle state of the extended-range motor home is determined, and then it is determined whether the vehicle state meets the preset camping condition, so as to avoid the interference of normal driving of the vehicle due to false operation and the like.

[0069] Further, the vehicle state includes current speed, current gear and throttle pedal opening degree, and the step S110 of determining whether the vehicle state of the extended-range motor home meets the preset camping condition includes:

[0070] In step S111, it is determined whether the current speed is lower than a preset minimum speed, whether the current gear is a parking gear, and whether the throttle pedal opening degree is lower than a preset minimum opening degree.

[0071] In step S112, if the current speed is lower than the preset minimum speed, the current gear is a parking gear, and the throttle pedal opening degree is lower than the preset minimum opening degree, it is determined that the vehicle state of the extended-range motor home meets the preset camping condition.

[0072] The vehicle state of the extended-range recreational vehicle can include a current vehicle speed, a current gear, and an accelerator pedal opening. Then it can be determined whether the current vehicle speed is lower than a preset minimum vehicle speed (for example, 3 km / h, 5 km / h, etc.), whether the current gear is a parking gear (i.e., P gear), and whether the accelerator pedal opening is lower than a preset minimum opening (for example, 3°, 5°, etc.). If the current vehicle speed is lower than the preset minimum vehicle speed, the current gear is the parking gear, and the accelerator pedal opening is lower than the preset minimum opening, it indicates that the extended-range recreational vehicle is in the parking gear, the current vehicle speed and the accelerator pedal opening are very small, and the extended-range recreational vehicle is in a stopped driving state. Therefore, it is determined that the vehicle state of the extended-range recreational vehicle meets the preset camping condition. If the current vehicle speed is not lower than the preset minimum vehicle speed, and / or the current gear is not the parking gear, and / or the accelerator pedal opening is not lower than the preset minimum opening, it is determined that the vehicle state of the extended-range recreational vehicle does not meet the preset camping condition.

[0073] In this embodiment, the current vehicle speed, the current gear, and the accelerator pedal opening of the extended-range recreational vehicle are determined to determine whether the extended-range recreational vehicle is in a driving state. Then, when the extended-range recreational vehicle is in the driving state, it is determined that the vehicle state of the extended-range recreational vehicle does not meet the preset camping condition. This can effectively improve the accuracy of determining whether the vehicle state of the extended-range recreational vehicle meets the preset camping condition.

[0074] In step S200, if the current time is in the preset rest period, it is determined whether the remaining electric quantity is higher than a preset minimum low electric quantity threshold.

[0075] If the current time is in the preset rest period, it indicates that the extended-range recreational vehicle is in a stopped driving state, and the user is preparing to rest or has already rested. Then, it can be determined whether the remaining electric quantity is higher than a preset minimum low electric quantity threshold. The preset minimum low electric quantity threshold is the minimum threshold of a preset low electric quantity interval. For example, the preset low electric quantity interval is 15%-40% of the rated capacity of the power battery of the extended-range recreational vehicle, and the preset minimum low electric quantity threshold is 15%. If the current time is not in the preset rest period, it indicates that the user is not resting. Then, the remaining electric quantity can be maintained in a higher electric quantity interval to meet the power demand in vehicle driving.

[0076] In step S300, if the remaining electric quantity is not higher than the preset minimum low electric quantity threshold, the range extender of the extended-range recreational vehicle is controlled to operate at a preset low power until the remaining electric quantity reaches a preset maximum low electric quantity threshold.

[0077] Specifically, the preset low power is a power value when the range-extender operating noise of the range-extending motor home is less than a preset decibel threshold (such as 40 decibels, 43 decibels, 45 decibels, etc.), for example, 20%, 25%, 30% of the rated power, etc. When the remaining power is not higher than the preset minimum low power threshold, the range-extender of the range-extending motor home is controlled to operate at the preset low power, which can ensure that the noise generated by the range-extender of the range-extending motor home operating at the preset low power is small, avoiding affecting the rest state of the user. Wherein, the preset maximum low power threshold is the maximum threshold of the preset low power range, for example, the preset low power range is 15%-40% of the rated capacity of the power battery, and the preset maximum low power threshold is 40%. The range-extender of the range-extending motor home operates at the preset low power until the remaining power reaches the preset maximum low power threshold, and the operation of the range-extender can be stopped when the remaining power reaches the preset maximum low power threshold. Since the power consumption of the motor home in the stopped driving state is much lower than that in the driving process, the remaining power of the range-extending motor home can be maintained in the preset low power range, that is, the problem of insufficient power during the rest period is solved, and at the same time, the operating noise and working time of the range-extender are reduced as much as possible, avoiding affecting the rest of the user.

[0078] In the first embodiment of the present application, the current time and the remaining power of the range-extending motor home are obtained, and it is judged whether the current time is in the preset rest period. If the current time is in the preset rest period, it is judged whether the remaining power is higher than the preset minimum low power threshold. If the remaining power is not higher than the preset minimum low power threshold, the range-extender of the range-extending motor home is controlled to operate at the preset low power until the remaining power reaches the preset maximum low power threshold. Thus, the embodiment can solve the problem of insufficient power during the rest period by using the range-extender of the range-extending motor home to generate power, and on the one hand, the range-extender of the range-extending motor home is controlled to operate at the preset low power, which can ensure that the noise generated by the range-extender of the range-extending motor home operating at the preset low power is small, avoiding affecting the rest state of the user, and on the other hand, the remaining power of the range-extending motor home can be maintained in a lower power range, which can also reduce the working time of the range-extender, thereby improving the safety and comfort of the motor home user during the rest period.

[0079] Further, with reference to Figure 3 , the second embodiment of the present application provides a control method of a range-extending motor home, based on the above Figure 2 embodiment, the step S300 of controlling the range-extender of the range-extending motor home to operate at the preset low power includes:

[0080] Step S310, controlling the range-extender of the range-extending motor home to operate at the preset low power, and collecting the current noise decibel value of the range-extending motor home;

[0081] Step S311, according to the current noise decibel value and the decibel difference value of the preset decibel threshold, query the preset decibel difference value and the correction coefficient mapping table to obtain the corresponding target correction coefficient;

[0082] Step S312, according to the target correction coefficient, the preset low power is corrected to obtain a new preset low power, and the range extender of the range extended house car is controlled to run at the new preset low power.

[0083] The range extender will usually bring a certain degree of noise during operation, and the noise decibel of the range extender is not only affected by the running power of the range extender, but also by the maintenance state, running time, structure of the range extender and other factors.

[0084] In this embodiment, the range extender of the range extended house car is controlled to run at a preset low power, and the current noise decibel value of the range extended house car is collected. The current noise decibel value can be the noise decibel value in the cabin of the range extended house car, or the noise decibel value when the range extender is running. According to the decibel difference value of the current noise decibel value and the preset decibel threshold, wherein the preset decibel threshold is a decibel value that does not affect user rest, such as 40 decibels, 43 decibels, 45 decibels, etc. It can be understood that the corresponding preset decibel threshold when the current noise decibel value is the noise decibel value in the cabin of the range extended house car is different from the corresponding preset decibel threshold when the current noise decibel value is the noise decibel value when the range extender is running. The decibel difference value of the current noise decibel value and the preset decibel threshold can determine the influence degree of the current noise on the user's rest state. The decibel difference value can be the difference between the current noise decibel value and the preset decibel threshold, or the difference between the preset decibel threshold and the current noise decibel value. Taking the decibel difference value as an example, the difference between the current noise decibel value and the preset decibel threshold is less than 1, the greater the decibel difference value, the smaller the target correction coefficient, such as 0.9, 0.8, 0.7, etc. The decibel difference value is negative, and the target correction coefficient is greater than 1, the smaller the decibel difference value, the greater the target correction coefficient, such as 1.1, 1.2, etc. Of course, it can be understood that the target correction coefficient corresponding to the decibel difference value less than zero (i.e. the current noise decibel value is lower than the preset decibel threshold) in the preset decibel difference value and correction coefficient mapping table can be set to 1, i.e. the current noise decibel value is lower than the preset decibel threshold, the preset low power is not corrected to provide lower noise and improve the comfort of the user during rest. Thus, the preset decibel difference value and the correction coefficient mapping table can be queried to obtain the corresponding target correction coefficient. Then, according to the target correction coefficient, the preset low power is corrected to obtain a new preset low power, and the range extender of the range extended house car is controlled to run at the new preset low power.

[0085] The embodiment updates the preset low power by the decibel difference between the current noise decibel value of the range-extending motor home and the preset decibel threshold, thereby avoiding the influence of the maintenance state, running time, and range-extender structure of the range extender, and maintaining the current noise decibel of the range-extending motor home within the preset decibel threshold, so as to avoid affecting the user's rest.

[0086] Further, before step S300, the method further comprises:

[0087] Step S320, obtaining the current power consumption of the range-extending motor home and the interval time length between the current time and the end time of the preset rest period;

[0088] Step S321, obtaining the estimated power consumption according to the current power consumption and the interval time length;

[0089] Step S322, obtaining the preset maximum low power threshold according to the preset minimum low power threshold and the estimated power consumption.

[0090] When the user is preparing to rest or has already rested, the air conditioner, refrigerator, and other electrical appliances in the range-extending motor home are still in use. At this time, the current power consumption of the range-extending motor home is obtained to determine the power consumption of the range-extending motor home. In addition, considering that the power at different time points may fluctuate, the average value of the real-time power consumption in a preset monitoring time (such as 5 minutes, 10 minutes, etc.) can be obtained as the current power consumption to improve the accuracy of identifying the power consumption of the range-extending motor home. Then the interval time length between the current time and the end time of the preset rest period is determined. According to the product of the current power consumption and the interval time length, the estimated power consumption is obtained. For example, the current power consumption is 2 kilowatts, and the interval time length is 4 hours, so the estimated power consumption is 8 kilowatt-hours. Then, according to the preset minimum low power threshold and the estimated power consumption, the preset maximum low power threshold is obtained. Taking the rated capacity of the battery of the range-extending motor home as 40 kilowatt-hours, the preset minimum low power threshold as 15%, and the estimated power consumption as 8 kilowatt-hours as an example, the power ratio corresponding to the estimated power consumption is 8 / 40=20%, and the preset maximum low power threshold is the sum of the preset minimum low power threshold and the estimated power consumption, i.e. 15%+20%=35%. Of course, considering the battery loss, the accuracy of the current power consumption, and other factors, a certain amount of redundant power can also be set, i.e. the preset maximum low power threshold can be the sum of the preset minimum low power threshold, the estimated power consumption, and a preset redundant power. Taking the redundant power as 5% as an example, the preset maximum low power threshold is 35%+5%=40%.

[0091] In this embodiment, the estimated power consumption is determined by obtaining the current power consumption of the range-extended motor home and the interval length between the current time and the end time of the preset resting period. Then, the preset maximum low power threshold is obtained according to the preset minimum low power threshold and the estimated power consumption. Thus, the value of the preset maximum low power threshold in this embodiment is more reasonable. On the basis of ensuring that the user can use electricity during the preset resting period, the preset maximum low power threshold is prevented from being too small to cause the range extender to start too frequently, which affects the user's rest and the service life of the range extender.

[0092] Further, after the step S321 of obtaining the estimated power consumption according to the current power consumption and the interval length, the method further comprises:

[0093] In step S321A, a corresponding charging time length is obtained according to the estimated power consumption and the preset low power.

[0094] In step S321B, it is determined whether the charging time length exceeds a preset time length threshold.

[0095] In step S321C, if the charging time length exceeds the preset time length threshold, a new estimated power consumption is obtained according to the preset time length threshold and the preset low power.

[0096] In order to avoid the running time of the range extender being too long, after obtaining the estimated power consumption, the power generation amount of the range extender of the range-extended motor home at the preset low power when the estimated power consumption is reached can be determined according to the estimated power consumption and the preset low power. Taking the preset low power as 10 kW and the estimated power consumption as 18 kW as an example, the corresponding charging time length is the quotient of the estimated power consumption and the preset low power, i.e. 18 / 10=1.8 hours, which is 108 minutes. Then, it is determined whether the charging time length exceeds a preset time length threshold (for example, 60 minutes, 90 minutes, 120 minutes, etc.). If the charging time length exceeds the preset time length threshold, it indicates that the charging time is too long when the range extender of the range-extended motor home runs at the preset low power. Then, a new estimated power consumption can be obtained according to the preset time length threshold and the preset low power. Taking the preset low power as 10 kW and the preset time length threshold as 90 minutes as an example, the new estimated power consumption is the product of the preset time length threshold and the preset low power, i.e. 10*1.5=15 kW. Then, the preset maximum low power threshold is determined according to the preset minimum low power threshold and the new estimated power consumption. If the charging time length does not exceed the preset time length threshold, step S322 is directly performed. In this embodiment, whether the charging time length exceeds the preset time length threshold is determined, and then the new estimated power consumption is determined to avoid the running time of the range extender being too long, which affects the working state of the range extender and increases the noise when the range extender runs, so as to ensure the comfort of the user during the resting period and the good working state of the range extender.

[0097] Further, in another embodiment, after the step of acquiring the current time and the remaining power and determining whether the current time is in the preset rest period, the method further comprises:

[0098] Step S400, if the current time is not in the preset rest period, determining whether the remaining power is higher than a preset minimum high power threshold;

[0099] Step S410, if the remaining power is not higher than the preset minimum high power threshold, controlling the range extender of the range extended house car to run at a preset high power until the remaining power reaches a preset maximum high power threshold.

[0100] Specifically, if the current time is not in the preset rest period, it can be determined whether the remaining power is higher than a preset minimum high power threshold (e.g. 50%, 60%, 70% of the rated capacity of the power battery). If the remaining power is not higher than the preset minimum high power threshold, the range extender of the range extended house car is controlled to run at a preset high power (e.g. 80%, 90% of the rated power, etc.) until the remaining power reaches a preset maximum high power threshold (e.g. 80%, 90% of the rated capacity of the power battery) to ensure that the power demand of the vehicle can be met during driving.

[0101] Referring to Figure 4 , Figure 4 is a flowchart of an optional embodiment of the control method of the range extended house car.

[0102] As Figure 4As shown, when the preset camping instruction of the user is received and the vehicle state of the range-extended house car meets the preset camping condition, it is determined that the camping mode of the range-extended house car takes effect. Then, the current time is acquired, and it is judged whether the current time is in a preset rest period (for example, 20:00 at night to 08:00 in the daytime). If the current time is not in the preset rest period, the range-extender control strategy in the non-rest period is executed. When the remaining electric quantity SOC is less than a preset minimum high electric quantity threshold T1, the range extender is enabled, and the range extender works at a preset high power P1. When the range extender generates electricity until the remaining electric quantity SOC reaches a preset maximum high electric quantity threshold T2, the range extender is stopped to be enabled, so that the remaining electric quantity SOC is kept in a higher electric quantity interval to meet the power requirement in vehicle driving. If the current time is in the preset rest period, the range-extender control strategy in the rest period is executed. When the remaining electric quantity SOC is less than a preset minimum low electric quantity threshold T3, the range extender is enabled, and the range extender works at a preset low power P2. When the range extender generates electricity until the remaining electric quantity SOC reaches a preset maximum low electric quantity threshold T4, the range extender is stopped to be enabled, and the remaining electric quantity SOC is kept in a lower electric quantity interval to avoid that the electricity generation time is too long or the range extender startup frequency is too high, and meanwhile, the range extender works at the preset low power P2 to reduce the working noise of the range extender as much as possible. Thus, the safety and comfort of the user in the rest period are improved.

[0103] Further, referring to Figure 5 , Figure 5 is a structural schematic diagram of a control system of a range-extended house car involved in an embodiment scheme of the present application.

[0104] As Figure 5 shown, the present embodiment provides a control system of a range-extended house car, which comprises:

[0105] A first judging module 10 is configured to acquire a current time and a remaining electric quantity of the range-extended house car, and judge whether the current time is in a preset rest period.

[0106] A second judging module 20 is configured to, if the current time is in the preset rest period, judge whether the remaining electric quantity is higher than a preset minimum low electric quantity threshold.

[0107] A control module 30 is configured to, when the remaining electric quantity is not higher than the preset minimum low electric quantity threshold, control the range-extended house car to work at a preset low power until the remaining electric quantity reaches a preset maximum low electric quantity threshold.

[0108] Further, the control system of the range-extended house car further comprises a power determining module 40 configured to

[0109] control the range extender of the range-extended house car to work at the preset low power, and collect a current noise decibel value of the range-extended house car.

[0110] query a preset decibel difference and correction coefficient mapping table according to the decibel difference between the current noise decibel value and the preset decibel threshold value to obtain a corresponding target correction coefficient;

[0111] correct a preset low power according to the target correction coefficient to obtain a new preset low power, and control the range extender of the range house car to operate at the new preset low power.

[0112] Further, the control system of the range house car further comprises a threshold determination module 50, configured to

[0113] obtain a current power consumption of the range house car and an interval duration between the current time and an end time of a preset rest period;

[0114] obtain an estimated power consumption according to the current power consumption and the interval duration;

[0115] obtain the preset maximum low power threshold according to the preset minimum low power threshold and the estimated power consumption.

[0116] Further, the threshold determination module 50 is further configured to

[0117] obtain a corresponding charging duration according to the estimated power consumption and the preset low power;

[0118] determine whether the charging duration exceeds a preset duration threshold;

[0119] If the charging duration exceeds the preset duration threshold, obtain a new estimated power consumption according to the preset duration threshold and the preset low power.

[0120] Further, the control system of the range house car further comprises a third determination module 60, configured to

[0121] When receiving a preset camping instruction of a user, determine whether a vehicle state of the range house car meets a preset camping condition;

[0122] If the vehicle state meets the preset camping condition, perform the following steps: obtain a current time and a remaining power of the range house car, and determine whether the current time is in a preset rest period.

[0123] Further, the third determination module 60 is further configured to

[0124] determine whether the current vehicle speed is lower than a preset minimum vehicle speed, whether the current gear is a parking gear, and whether the accelerator pedal opening degree is lower than a preset minimum opening degree;

[0125] If the current vehicle speed is lower than a preset minimum vehicle speed, and the current gear is a parking gear, and the accelerator pedal opening is lower than a preset minimum opening, it is determined that the vehicle state of the range-extended recreational vehicle meets preset camping conditions.

[0126] Further, the control module 30 is further configured to

[0127] If the current time is not in a preset rest period, it is determined whether the remaining power is higher than a preset minimum high power threshold value.

[0128] If the remaining power is not higher than the preset minimum high power threshold value, the range-extender of the range-extended recreational vehicle is controlled to operate at a preset high power until the remaining power reaches a preset maximum high power threshold value.

[0129] In addition, the embodiment of the present application also proposes a computer storage medium, the computer storage medium stores a computer program, and the computer program is executed by a processor to realize the operations in the control method of the range-extended recreational vehicle provided by the above embodiment, and the specific steps will not be described here.

[0130] It should be noted that, in this document, the relationship terms such as first and second are used only to distinguish one entity / operation / element from another entity / operation / element, and do not necessarily require or imply any such actual relationship or order between these entities / operations / elements; the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or system. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or system including the element.

[0131] For the device embodiment, since it is basically similar to the method embodiment, it is described more simply, and the relevant part can be referred to the part of the description of the method embodiment. The device embodiment described above is only schematic, and the units described as separate components can or can not be physically separate. Some or all of the modules can be selected according to actual needs to achieve the purpose of the present application. Those skilled in the art can understand and implement it without creative labor.

[0132] The serial numbers of the above-mentioned embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0133] Those skilled in the art can clearly understand the above-mentioned embodiment method can be realized by means of software and the necessary general hardware platform, of course, can also be through hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application essentially or say the part of the prior art contribution can be embodied in the form of software products, the computer software product is stored in a storage medium (such as ROM / RAM, magnetic disc, optical disc) as described above, including a number of instructions to make a terminal device (may be a mobile phone, computer, server, vehicle, or network equipment, etc.) executes the method described in various embodiments of the present application.

[0134] The above is only the preferred embodiment of the present application, not therefore limit the patent scope of the present application, any equivalent structure or equivalent flow transformation made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A control method of a range extender recreational vehicle, characterized by, The control method of the range-extended RV comprises the following steps: Obtain the current time and the remaining power of the extended-range RV, and determine whether the current time is in a preset rest period; If the current moment is in a preset rest period, determining whether the remaining power is higher than a preset minimum low power threshold; If the remaining power is not higher than a preset minimum low power threshold, controlling the range extender of the range-extended RV to operate at a preset low power until the remaining power reaches a preset maximum low power threshold; The step of controlling the range extender of the range-extended RV to operate at a preset low power comprises: controlling the range extender of the range-extended RV to operate at a preset low power, and collecting a current noise decibel value of the range-extended RV; According to the decibel difference between the current noise decibel value and the preset decibel threshold, querying a preset decibel difference and correction coefficient mapping table to obtain a corresponding target correction coefficient; Correcting the preset low power according to the target correction coefficient to obtain a new preset low power, and controlling the range extender of the range-extended RV to operate at the new preset low power; Before the step of controlling the range extender of the range-extended RV to operate at a preset low power until the remaining power reaches a preset maximum low power threshold if the remaining power is not higher than the preset minimum low power threshold, the method further includes: Obtaining the current power consumption of the range-extended RV and the interval between the current time and the end time of the preset rest period; Obtaining estimated power consumption based on the current power consumption and the interval duration; The preset maximum low-battery threshold is obtained according to the preset minimum low-battery threshold and the estimated power consumption.

2. The control method of the range extended motor home according to claim 1, wherein After the step of obtaining the estimated power consumption based on the current power consumption and the interval duration, the method further includes: Obtaining a corresponding charging time according to the estimated power consumption and the preset low power; Determining whether the charging time exceeds a preset time threshold; If the charging time exceeds a preset time threshold, a new estimated power consumption is obtained according to the preset time threshold and the preset low power.

3. The control method of the range extended motor home according to claim 1, wherein Before the step of obtaining the current time and the remaining power of the range-extended RV, and determining whether the current time is in a preset rest period, the method includes: When receiving a preset camping instruction from the user, determining whether the vehicle state of the extended-range RV meets the preset camping conditions; If the vehicle status meets the preset camping conditions, the following steps are executed: obtaining the remaining power of the current time and the extended-range RV, and determining whether the current time is in a preset rest period.

4. The control method of the range extended motor home according to claim 3, wherein The vehicle state includes the current vehicle speed, the current gear position, and the accelerator pedal opening. The step of determining whether the vehicle state of the extended-range RV meets the preset camping conditions includes: Determining whether the current vehicle speed is lower than a preset minimum vehicle speed, whether the current gear is the parking gear, and whether the accelerator pedal opening is lower than a preset minimum opening; If the current vehicle speed is lower than a preset minimum vehicle speed, the current gear is the parking gear, and the accelerator pedal opening is lower than a preset minimum opening, it is determined that the vehicle state of the extended-range RV meets the preset camping conditions.

5. The control method of the extended-range motor home according to any one of claims 1 to 4, characterized by, The method further comprises the following steps after the step of acquiring the current time and the remaining power and determining whether the current time is in the preset rest period: If the current time is not in the preset rest period, it is determined whether the remaining power is higher than a preset minimum high power threshold; If the remaining power is not higher than the preset minimum high power threshold, the range extender of the range extended house car is controlled to run at a preset high power until the remaining power reaches a preset maximum high power threshold.

6. A control system of a range extending motor home, characterized by, The control system of the range extended house car comprises: A first determination module for acquiring the current time and the remaining power of the range extended house car and determining whether the current time is in the preset rest period; A second determination module for determining whether the remaining power is higher than a preset minimum low power threshold if the current time is in the preset rest period; A control module for controlling the range extended house car to run at a preset low power until the remaining power reaches a preset maximum low power threshold when the remaining power is not higher than the preset minimum low power threshold; The control system of the range extended house car further comprises: A power determination module for controlling the range extender of the range extended house car to run at a preset low power and collecting the current noise decibel value of the range extended house car; according to the decibel difference between the current noise decibel value and a preset decibel threshold, querying a preset decibel difference and correction coefficient mapping table to obtain a corresponding target correction coefficient; according to the target correction coefficient, correcting the preset low power to obtain a new preset low power, and controlling the range extender of the range extended house car to run at the new preset low power; A threshold determination module for acquiring the current power consumption of the range extended house car and the interval time length between the current time and the end time of the preset rest period; according to the current power consumption and the interval time length, obtaining an estimated power consumption; according to the preset minimum low power threshold and the estimated power consumption, obtaining the preset maximum low power threshold.

7. A control device of a range extending motor home, characterized by comprising: The control device of the range extended house car comprises a memory, a processor, and a computer program stored on the memory and executable on the processor, and the computer program is executed by the processor to implement the steps of the method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a control program of the range extended house car, and the control program of the range extended house car is executed by the processor to implement the steps of the method according to any one of claims 1 to 5.

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