Range extender power control method, apparatus and device, storage medium, and vehicle

Abstract

A range extender power control method, apparatus and device, a storage medium, and a vehicle. The control method comprises: acquiring a charging risk level of a battery in a vehicle (S110); when the opening degree of an accelerator pedal of the vehicle is reduced, acquiring an opening degree reduction rate of the accelerator pedal in the vehicle within a first duration after a first moment, wherein the first moment is the moment when the opening degree of the accelerator pedal starts to be reduced (S120); and reducing a range extender power of the vehicle on the basis of the opening degree reduction rate and the charging risk level (S130).

Description

Range extender power control method, device, equipment, storage medium and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202311805474.9, entitled “Method, device, equipment, storage medium and vehicle for controlling range extender power”, filed on December 25, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of extended-range vehicles, and in particular to a method, device, equipment, storage medium and vehicle for controlling the power of a range extender. Background Art

[0004] When the throttle opening of the extended-range vehicle is large, the driving power required by the vehicle is large. At this time, the range extender in the vehicle is needed to supply energy to the vehicle to maintain normal operation of the vehicle. The range extender will output a larger range extender power.

[0005] However, if the driver suddenly releases the accelerator, the vehicle's required driving power will drop rapidly. However, the range extender's power reduction has a certain lag. Therefore, after the driver suddenly releases the accelerator, the range extender's power cannot be reduced quickly. The excess energy output by the range extender is then used to charge the vehicle's battery. Because the range extender outputs a large amount of excess energy at this time, if the charging power output by the range extender to the battery exceeds the battery's designed charging power, it will shorten the battery's service life.

[0006] Summary of the Invention

[0007] In order to solve the above technical problems, an embodiment of the first aspect of the present application provides a method for controlling the power of a range extender, the method comprising:

[0008] Obtaining the charging risk level of the battery in the vehicle;

[0009] When the opening degree of the accelerator pedal of the vehicle decreases, obtaining a rate of decrease of the opening degree of the accelerator pedal in the vehicle within a first time period after a first moment, wherein the first moment is the moment when the opening degree of the accelerator pedal starts to decrease;

[0010] The range extender power of the vehicle is reduced according to the opening degree reduction rate and the charging risk level.

[0011] According to an implementation of the first aspect of the present application, when the opening degree of the accelerator pedal in the vehicle decreases, obtaining a rate of decrease in the opening degree of the accelerator pedal in the vehicle within a first time period after a first moment includes:

[0012] acquiring a first opening decrease amplitude of the accelerator pedal within a first time period after a first moment when the initial opening of the accelerator pedal is greater than a first opening threshold and the opening decrease amplitude of the accelerator pedal in the vehicle is greater than an opening change threshold;

[0013] A ratio of the first opening degree reduction amplitude to the first time period is determined as a rate of reduction in the opening degree of the accelerator pedal.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, obtaining the charging risk level of the battery in the vehicle includes:

[0015] When the charging power of the battery is greater than the maximum chargeable power of the battery, the battery enters an alarm state, determining the charging risk level of the battery as a high risk level;

[0016] After the charging power of the battery is greater than the maximum rechargeable power for a duration greater than a first duration threshold, in a case where the battery enters an alarm state, determining the charging risk level of the battery as a medium risk level;

[0017] When the battery enters an alarm state after the charging power of the battery is greater than the maximum rechargeable power for a duration greater than a second duration threshold, the charging risk level of the battery is determined to be a low risk level, wherein the second duration threshold is greater than the first duration threshold.

[0018] According to any of the foregoing embodiments of the first aspect of the present application, reducing the range extender power of the vehicle according to the opening reduction rate and the charging risk level includes:

[0019] When the opening degree decrease rate is greater than a first decrease rate threshold and the charging risk level of the battery is a high risk level, the range extender power is reduced to a first power at a first rate detection time, wherein the first power is the power required by accessories in the vehicle, and the first rate detection time is a time when the opening degree decrease rate is first detected to be greater than the first decrease rate threshold.

[0020] According to any of the foregoing embodiments of the first aspect of the present application, reducing the range extender power of the vehicle according to the opening reduction rate and the charging risk level includes:

[0021] When the opening degree decrease rate is greater than a third decrease rate threshold and the charging risk level of the battery is a low risk level, the range extender power is reduced to a third power at a second rate detection moment, where the third power is the sum of the first power, the compensation power, and the fourth power, the fourth power is the larger value of 0 and a first difference, and the first difference is the difference between the driving power and the maximum discharge power of the battery. The third decrease rate threshold is greater than the first decrease rate threshold, and the second rate detection moment is the moment when the opening degree decrease rate is first detected to be greater than the third decrease rate threshold.

[0022] According to any of the foregoing embodiments of the first aspect of the present application, reducing the range extender power of the vehicle according to the opening reduction rate and the charging risk level includes:

[0023] When the opening degree decrease rate is greater than a second decrease rate threshold and the charging risk level of the battery is a medium risk level, the range extender power is reduced to a second power at a third rate detection moment, wherein the second power is a smaller value of a third power and a first sum, the first sum being the sum of the maximum chargeable power of the battery and the first power, the second decrease rate threshold is greater than the first decrease rate threshold and less than the third decrease rate threshold, and the third rate detection moment is the moment when the opening degree decrease rate is first detected to be greater than the second decrease rate threshold.

[0024] An embodiment of the second aspect of the present application further provides a device for controlling the power of a range extender, the device comprising:

[0025] A first acquisition module is used to obtain a charging risk level of a battery in a vehicle;

[0026] a second acquisition module, configured to acquire, when the opening degree of the accelerator pedal of the vehicle decreases, a rate of decrease of the opening degree of the accelerator pedal in the vehicle within a first time period after a first moment, wherein the first moment is a moment when the opening degree of the accelerator pedal starts to decrease;

[0027] A reduction module is configured to reduce the range extender power of the vehicle according to the opening degree reduction rate and the charging risk level.

[0028] An embodiment of a third aspect of the present application provides a range extender power control device, the device comprising:

[0029] a processor and a memory storing computer program instructions;

[0030] When the processor executes the computer program instructions, the above range extender power control method is implemented.

[0031] An embodiment of the fourth aspect of the present application provides a computer storage medium having computer program instructions stored thereon. When the computer program instructions are executed by a processor, the above-mentioned method for controlling the power of the range extender is implemented.

[0032] An embodiment of the fifth aspect of the present application provides a vehicle, comprising computer program instructions, which implement the above range extender power control method when executed by a processor.

[0033] The range extender power control method, apparatus, device, computer storage medium, and vehicle of the embodiments of the present application can obtain the charging risk level of the battery in the vehicle; when the accelerator pedal opening decreases, obtain the rate of decrease in the accelerator pedal opening in the vehicle within a first period after the accelerator pedal opening begins to decrease; and reduce the vehicle's range extender power based on the rate of decrease and the charging risk level. In this way, the decreasing trend of the accelerator pedal opening can be predicted based on the rate of decrease in the first period after the accelerator pedal opening begins to decrease, and the vehicle's range extender power can be reduced in advance based on the decrease trend and the battery's charging risk level, rather than reducing the range extender power after the vehicle's required driving power decreases. This avoids the risk of battery overcharging caused by the hysteresis of the range extender power reduction and further avoids a reduction in battery life. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings, which are not drawn to scale.

[0035] FIG1 is a flow chart of a method for controlling the power of a range extender provided in one embodiment of the present application;

[0036] FIG2 is a schematic structural diagram of a range extender power control device provided in one embodiment of the present application;

[0037] FIG3 is a schematic diagram of the hardware structure of a range extender power control device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0038] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are set forth in order to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the well-known structures and technologies are not shown in order to avoid unnecessary ambiguity in the present application; and, for clarity, the sizes of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0039] In order to better understand the present application, the range extender power control method, device, equipment, computer storage medium and vehicle provided by the embodiments of the present application are described in detail below with reference to Figures 1 to 3.

[0040] FIG1 shows a flow chart of a method for controlling the power of a range extender according to an embodiment of the present application. The method includes steps S110 to S130:

[0041] S110: Obtain a charging risk level of a battery in a vehicle.

[0042] In this embodiment, in a range-extended vehicle, the battery and the range extender jointly provide the energy required by the vehicle, and the range extender can also charge the battery. If the charging power when charging the battery is greater than the maximum charge power of the battery, overcharging will occur, thereby creating an overcharging risk. The battery's charging risk level is used to indicate the battery's tolerance to overcharging risk. The battery's charging risk level is related to factors such as its chemical properties, structural design, and temperature management. Based on the battery's tolerance to overcharging risk, batteries can be divided into three categories: high risk, medium risk, and low risk.

[0043] S120, when the opening of the accelerator pedal of the vehicle decreases, obtain the rate of decrease of the opening of the accelerator pedal in the vehicle within a first time period after a first moment, wherein the first moment is the moment when the opening of the accelerator pedal begins to decrease.

[0044] In this embodiment, the accelerator pedal is used to control the acceleration and speed of the vehicle. The accelerator pedal's opening is a percentage value that represents the position of the accelerator pedal relative to its fully open state, that is, the degree to which the accelerator pedal is pressed. When the accelerator pedal is fully pressed, the accelerator pedal's opening is 100%; when the accelerator pedal is fully lifted, the accelerator pedal's opening is 0%. The greater the accelerator pedal's opening, the greater the driving power required by the vehicle. Driving power refers to the power required by the vehicle's powertrain to maintain a specific speed or acceleration. If the vehicle's accelerator pedal's opening is detected to be decreasing, the rate of decrease in the accelerator pedal's opening can be obtained. In addition, to achieve real-time response to changes in the accelerator pedal, the first duration can be set to a shorter duration, such as 200 milliseconds or 300 milliseconds.

[0045] S130: Reduce the range extender power of the vehicle according to the opening degree reduction rate and the charging risk level.

[0046] In this embodiment, in a range-extended vehicle, the range extender power provided by the vehicle's range extender can be approximately determined as the sum of the vehicle's drive power, accessory power, and charging power. Accessory power is the power required by the vehicle's accessories, which may include lighting, power windows, and air conditioning systems.

[0047] That is: range extender power = driving power + accessory power + charging power

[0048] That is to say, in addition to meeting the driving power and accessory power required by the vehicle, the remaining range extender power output by the range extender is all charging power for charging the battery.

[0049] Then, when the driver suddenly releases the accelerator pedal to reduce the opening at a large rate, the driving power will drop rapidly, while the range extender power response has a lag, and the accessory power will hardly change, which will cause the charging power to increase.

[0050] In this case, in order to avoid damage to the battery life caused by excessive charging power, thereby affecting the safety of the vehicle, the vehicle's range extender power can be reduced in advance when the opening degree of the vehicle's accelerator pedal is detected to be decreasing, that is, based on the opening degree reduction rate and the charging risk level, to avoid excessive charging power.

[0051] In an embodiment of the present application, the charging risk level of the vehicle's battery is obtained; when the accelerator pedal's opening decreases, the rate of decrease in the vehicle's accelerator pedal's opening within a first period of time after the accelerator pedal's opening begins to decrease is obtained; and the vehicle's range extender power is reduced based on the rate of decrease and the charging risk level. In this way, the decreasing trend of the accelerator pedal's opening can be predicted based on the rate of decrease in the first period of time after the accelerator pedal's opening begins to decrease. The range extender power of the vehicle can be reduced in advance based on the decreasing trend and the battery's charging risk level, rather than reducing the range extender power after the vehicle's required driving power decreases. This avoids the risk of battery overcharging caused by the hysteresis of the range extender power reduction, further preventing a reduction in battery life.

[0052] As an optional embodiment, the above S120 may include:

[0053] acquiring a first opening decrease amplitude of the accelerator pedal within a first time period after a first moment when the initial opening of the accelerator pedal is greater than a first opening threshold and the opening decrease amplitude of the accelerator pedal in the vehicle is greater than an opening change threshold;

[0054] A ratio of the first opening degree reduction amplitude to the first time period is determined as a rate of reduction in the opening degree of the accelerator pedal.

[0055] In this embodiment, the initial accelerator pedal opening is the accelerator pedal opening before the accelerator pedal opening is reduced. The first opening threshold and the opening change threshold are both user-set thresholds. If the initial accelerator pedal opening is greater than the first opening threshold, and the magnitude of the accelerator pedal opening decreases by a greater magnitude than the opening change threshold, it can be considered that the accelerator pedal opening is starting from a larger opening and decreasing by a larger magnitude. In this case, it is difficult for the driver to quickly change the direction of the accelerator pedal control, and the accelerator pedal opening will continue to decrease.

[0056] In this case, it is necessary to calculate the accelerator pedal opening reduction rate and use this to reduce the range extender's power. Specifically, a first accelerator pedal opening reduction amplitude within a first duration after a first moment can be obtained, and the ratio of the first opening reduction amplitude divided by the first duration can be used to determine the accelerator pedal opening reduction rate.

[0057] In this embodiment, when the initial opening of the accelerator pedal is large and the opening reduction amplitude reaches a certain extent, the opening reduction rate of the accelerator pedal within the first time period after the first moment can be calculated to obtain an accurate opening reduction rate.

[0058] As an optional embodiment, the above S110 may include:

[0059] When the charging power of the battery is greater than the maximum chargeable power of the battery, the battery enters an alarm state, determining the charging risk level of the battery as a high risk level;

[0060] After the charging power of the battery is greater than the maximum rechargeable power for a duration greater than a first duration threshold, in a case where the battery enters an alarm state, determining the charging risk level of the battery as a medium risk level;

[0061] When the battery enters an alarm state after the charging power of the battery is greater than the maximum rechargeable power for a duration greater than a second duration threshold, the charging risk level of the battery is determined to be a low risk level, wherein the second duration threshold is greater than the first duration threshold.

[0062] In this embodiment, the maximum rechargeable power of a battery refers to the maximum power level at which the battery can be charged. The maximum rechargeable power of a battery is subject to design and manufacturing limitations, and depends on factors such as the battery type, chemistry, and internal structure. A battery alarm status indicates that the battery has detected potential issues such as overheating, gas generation, and electrolyte loss due to excessive charging power, prompting the operator or system to take appropriate action.

[0063] Batteries can be divided into three categories based on their tolerance to overcharging risks: high risk, medium risk, and low risk.

[0064] Specifically, if the battery's charging power exceeds the maximum chargeable power, the battery immediately enters an alarm state, and the battery's charging risk can be determined to be high risk. If the battery's charging power exceeds the maximum chargeable power for a duration greater than a first duration threshold, the battery enters an alarm state, and the battery's charging risk can be determined to be medium risk. If the battery's charging power exceeds the maximum chargeable power for a duration greater than a second duration threshold, the battery enters an alarm state, and the battery's charging risk can be determined to be low risk. For example, the maximum chargeable power can be 20KW, the first duration threshold can be 200ms, and the second duration threshold can be 500ms.

[0065] In this embodiment, batteries may be classified into different risk levels based on their tolerance to overcharging, so as to further determine a control strategy for the vehicle's range extender power.

[0066] As an optional embodiment, the above S130 may include:

[0067] When the opening degree decrease rate is greater than a first decrease rate threshold and the charging risk level of the battery is a high risk level, the range extender power is reduced to a first power at a first rate detection time, wherein the first power is the power required by accessories in the vehicle, and the first rate detection time is a time when the opening degree decrease rate is first detected to be greater than the first decrease rate threshold.

[0068] In this embodiment, three different thresholds may be set based on the decrease in the accelerator pedal opening, namely, a first decrease rate threshold, a second decrease rate threshold, and a third decrease rate threshold, wherein the third decrease rate threshold is greater than the second decrease rate threshold, and the second decrease rate threshold is greater than the first decrease rate threshold.

[0069] If the rate of decrease in the degree of opening is greater than a first rate of decrease threshold, then only when the battery of the vehicle is a high-risk battery, the power of the vehicle's range extender may be adjusted to the first power required by the accessories in the vehicle at the first rate detection moment when the rate of decrease in the degree of opening is first detected to be greater than the first rate of decrease threshold.

[0070] Through this adjustment method, when the risk of overcharging is high, the power output of the range extender can be adjusted in real time based on the user's control of the accelerator pedal, ensuring that the battery will not be overcharged while meeting the basic power needs of the vehicle's accessories.

[0071] As an optional embodiment, the above S130 may include:

[0072] When the opening degree decrease rate is greater than a third decrease rate threshold and the charging risk level of the battery is a low risk level, the range extender power is reduced to a third power at a second rate detection moment, where the third power is the sum of the first power, the compensation power, and the fourth power, the fourth power is the larger value of 0 and a first difference, and the first difference is the difference between the driving power and the maximum discharge power of the battery. The third decrease rate threshold is greater than the first decrease rate threshold, and the second rate detection moment is the moment when the opening degree decrease rate is first detected to be greater than the third decrease rate threshold.

[0073] In this embodiment, if the opening degree reduction rate is greater than not only the first reduction rate threshold but also the third reduction rate threshold, then if the vehicle battery is a battery with a low risk level, the range extender power can be reduced to the third power at the second rate detection moment when the opening degree reduction rate is first detected to be greater than the third reduction rate threshold.

[0074] The calculation formula of the third power is:

[0075] Third power = Max(0, (driving power - maximum battery discharge power)) + first power + compensation power

[0076] Compensation power is a mechanism in electric systems that adjusts the power difference between battery charging and discharging.

[0077] Through this adjustment method, the power output of the range extender can be adjusted in real time based on the user's control of the accelerator pedal when the risk of overcharging is low. While meeting the basic power needs of the vehicle's accessories and not exceeding the maximum discharge capacity of the battery, the driving power demand is met and the battery will not be overcharged.

[0078] As an optional embodiment, the above S130 may include:

[0079] When the opening degree decrease rate is greater than a second decrease rate threshold and the charging risk level of the battery is a medium risk level, the range extender power is reduced to a second power at a third rate detection moment, wherein the second power is a smaller value of a third power and a first sum, the first sum being the sum of the maximum chargeable power of the battery and the first power, the second decrease rate threshold is greater than the first decrease rate threshold and less than the third decrease rate threshold, and the third rate detection moment is the moment when the opening degree decrease rate is first detected to be greater than the second decrease rate threshold.

[0080] In this embodiment, if the opening degree reduction rate is greater than not only the first reduction rate threshold but also the second reduction rate threshold, then it is necessary not only to reduce the range extender power to the first power when the vehicle battery is a high-risk battery; but also to reduce the range extender power to the second power when the third rate detection moment when the opening degree reduction rate is first detected to be greater than the second reduction rate threshold when the vehicle battery is a medium-risk battery.

[0081] The calculation formula for the second power is:

[0082] Second power = Min (third power, maximum rechargeable power + accessory power)

[0083] Through this adjustment method, the power output of the range extender can be adjusted in real time based on the user's control of the accelerator pedal in the case of moderate overcharging risk, ensuring that the battery will not overcharge while meeting the basic power needs of the vehicle's accessories and being able to charge the battery.

[0084] Based on the range extender power control method provided in the above embodiment, the present application also provides a specific implementation of a range extender power control device. Please refer to the following embodiment.

[0085] First, referring to FIG2 , the range extender power control device 200 provided in an embodiment of the present application includes the following modules:

[0086] A first acquisition module 201 is used to obtain a charging risk level of a battery in a vehicle;

[0087] a second acquiring module 202 configured to acquire, when the opening of the accelerator pedal of the vehicle decreases, a rate of decrease of the opening of the accelerator pedal of the vehicle within a first time period after a first moment, wherein the first moment is a moment when the opening of the accelerator pedal begins to decrease;

[0088] The adjusting module 203 is configured to reduce the range extender power of the vehicle according to the opening reduction rate and the charging risk level.

[0089] The device can obtain the charging risk level of the vehicle's battery; when the vehicle's accelerator pedal's opening decreases, obtain the rate of decrease in the vehicle's accelerator pedal's opening within a first period of time after the accelerator pedal's opening begins to decrease; and reduce the vehicle's range extender power based on the rate of decrease and the charging risk level. In this way, the decreasing trend of the accelerator pedal's opening can be predicted based on the rate of decrease in the first period of time after the accelerator pedal's opening begins to decrease. The vehicle's range extender power can be reduced in advance based on the decreasing trend and the battery's charging risk level, rather than reducing the range extender power after the vehicle's required driving power decreases. This avoids the risk of battery overcharging caused by the hysteresis of the range extender's power reduction, further preventing a reduction in battery life.

[0090] As an implementation of the present application, the second obtaining module 202 may further include:

[0091] a first acquiring unit, configured to acquire a first opening degree reduction amplitude of the accelerator pedal within a first time period after a first moment, if the initial opening degree of the accelerator pedal is greater than a first opening degree threshold and the opening degree reduction amplitude of the accelerator pedal in the vehicle is greater than an opening degree change threshold;

[0092] The first determining unit is configured to determine a ratio of the first opening degree reduction amplitude to the first duration as an opening degree reduction rate of the accelerator pedal.

[0093] As an implementation of the present application, the first acquisition module 201 may include:

[0094] a second determining unit, configured to determine a charging risk level of the battery as a high risk level when the charging power of the battery is greater than the maximum chargeable power of the battery and the battery enters an alarm state;

[0095] a third determining unit, configured to determine a charging risk level of the battery as a medium risk level if the battery enters an alarm state after the charging power of the battery exceeds the maximum rechargeable power for a duration greater than a first duration threshold;

[0096] A fourth determination unit is used to determine the charging risk level of the battery as a low risk level when the battery enters an alarm state after the charging power of the battery is greater than the maximum rechargeable power for a duration greater than a second duration threshold, wherein the second duration threshold is greater than the first duration threshold.

[0097] As an implementation of the present application, the adjustment module 203 may further include:

[0098] a first adjustment unit, configured to reduce the range extender power to a first power at a first rate detection moment when the opening degree reduction rate is greater than a first reduction rate threshold and a charging risk level of the battery is a high risk level, wherein the first power is a power demand of an accessory in the vehicle, and the first rate detection moment is a moment when the opening degree reduction rate is first detected to be greater than the first reduction rate threshold.

[0099] As an implementation of the present application, the adjustment module 203 may further include:

[0100] a second adjustment unit, configured to, when the opening degree reduction rate is greater than a third reduction rate threshold and the charging risk level of the battery is a low risk level, reduce the range extender power to a third power at a second rate detection moment, wherein the third power is the sum of the first power, the compensation power, and the fourth power, the fourth power is the larger value of 0 and the first difference, the first difference being the difference between the driving power and the maximum discharge power of the battery, the third reduction rate threshold being greater than the first reduction rate threshold, and the second rate detection moment being the moment when the opening degree reduction rate is first detected to be greater than the third reduction rate threshold.

[0101] As an implementation of the present application, the adjustment module 203 may further include:

[0102] a third adjustment unit, configured to, when the opening degree reduction rate is greater than a second reduction rate threshold and the charging risk level of the battery is a medium risk level, reduce the range extender power to a second power at a third rate detection moment, wherein the second power is the smaller value of the third power and the first sum, the first sum is the sum of the maximum chargeable power of the battery and the first power, the second reduction rate threshold is greater than the first reduction rate threshold and less than the third reduction rate threshold, and the third rate detection moment is the moment when the opening degree reduction rate is first detected to be greater than the second reduction rate threshold.

[0103] The range extender power control device provided in the embodiment of the present invention can implement each step in the above method embodiment, and to avoid repetition, they are not described here.

[0104] FIG3 shows a schematic diagram of the hardware structure of a range extender power control device provided in an embodiment of the present application.

[0105] The range extender power control device may include a processor 301 and a memory 302 storing computer program instructions.

[0106] Specifically, the processor 301 may include a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0107] The memory 302 may include a large capacity memory for data or instructions. By way of example and not limitation, the memory 302 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory 302 may include removable or non-removable (or fixed) media. Where appropriate, the memory 302 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, the memory 302 is a non-volatile solid-state memory.

[0108] The memory may include read-only memory (ROM), random access memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical or other physical / tangible memory storage devices. Thus, generally, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to an aspect of the present disclosure.

[0109] The processor 301 reads and executes computer program instructions stored in the memory 302 to implement any one of the range extender power control methods in the above embodiments.

[0110] In one example, the range extender power control device may further include a communication interface 303 and a bus 310. As shown in FIG3 , the processor 301, the memory 302, and the communication interface 303 are connected via the bus 310 and communicate with each other.

[0111] The communication interface 303 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0112] The bus 310 includes hardware, software, or both, coupling the components of the range extender power control device to each other. By way of example and not limitation, the bus may include an accelerated graphics port (AGP) or other graphics bus, an enhanced industry standard architecture (EISA) bus, a front-side bus (FSB), a HyperTransport (HT) interconnect, an industry standard architecture (ISA) bus, an InfiniBand interconnect, a low pin count (LPC) bus, a memory bus, a microchannel architecture (MCA) bus, a peripheral component interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a serial advanced technology attachment (SATA) bus, a video electronics standard association local (VLB) bus, or other suitable buses or a combination of two or more of the above. Where appropriate, the bus 310 may include one or more buses. Although the embodiments of the present application describe and illustrate specific buses, the present application contemplates any suitable bus or interconnect.

[0113] The range extender power control device may be based on the above-mentioned embodiment, thereby realizing the range extender power control method and apparatus combined with the above-mentioned embodiment.

[0114] In addition, in combination with the range extender power control method in the above embodiment, the embodiment of the present application may provide a computer storage medium for implementation. The computer storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any one of the range extender power control methods in the above embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, they will not be described here. Among them, the above-mentioned computer-readable storage medium may include a non-transitory computer-readable storage medium, such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc., which is not limited here.

[0115] In addition, an embodiment of the present application also provides a vehicle, including computer program instructions, which, when executed by a processor, can implement the steps and corresponding contents of the aforementioned method embodiment.

[0116] It should be understood that the present application is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and illustrated as examples. However, the method process of the present application is not limited to the specific steps described and illustrated. Those skilled in the art can make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present application.

[0117] The functional blocks shown in the above block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. Programs or code segments can be stored in machine-readable media, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable media" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memories, erasable ROMs (EROMs), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0118] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps. In other words, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0119] Those skilled in the art should understand that the above embodiments are exemplary rather than restrictive. Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Based on a study of the drawings, specifications and claims, those skilled in the art should be able to understand and implement other variations of the disclosed embodiments. In the claims, the term "comprising" does not exclude other devices or steps; when an item is not modified by a quantifier, it is intended to include one / kind or more / kinds of items and can be used interchangeably with "one / kind or more / kinds of items"; the terms "first" and "second" are used to identify names rather than to indicate any specific order. Any figure marks in the claims should not be understood as limiting the scope of protection. The functions of multiple parts appearing in the claims can be implemented by a separate hardware or software module. The fact that certain technical features appear in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. A control method for the power of a range extender, the method comprising: Obtaining the charging risk level of the battery in the vehicle; When the opening degree of the accelerator pedal of the vehicle decreases, obtaining the decreasing rate of the opening degree of the accelerator pedal in the vehicle within a first time period after a first moment, where the first moment is the moment when the opening degree of the accelerator pedal starts to decrease; Reducing the power of the range extender of the vehicle according to the decreasing rate of the opening degree and the charging risk level.

2. The control method of the extender power according to claim 1, wherein, The step of, when the opening degree of the accelerator pedal in the vehicle decreases, obtaining the decreasing rate of the opening degree of the accelerator pedal in the vehicle within a first time period after a first moment, includes: When the initial opening degree of the accelerator pedal is greater than a first opening degree threshold and the decreasing amplitude of the opening degree of the accelerator pedal in the vehicle is greater than an opening degree change threshold, obtaining the first decreasing amplitude of the opening degree of the accelerator pedal within a first time period after the first moment; Determining the ratio of the first decreasing amplitude of the opening degree to the first time period as the decreasing rate of the opening degree of the accelerator pedal.

3. The control method for the power of the range extender according to claim 1, wherein, The step of obtaining the charging risk level of the battery in the vehicle includes: When the charging power of the battery is greater than the maximum rechargeable power of the battery and the battery enters an alarm state, determining the charging risk level of the battery as a high risk level; When the duration for which the charging power of the battery is greater than the maximum rechargeable power is greater than a first duration threshold and the battery enters an alarm state, determining the charging risk level of the battery as a medium risk level; When the duration for which the charging power of the battery is greater than the maximum rechargeable power is greater than a second duration threshold and the battery enters an alarm state, determining the charging risk level of the battery as a low risk level, where the second duration threshold is greater than the first duration threshold.

4. The control method for the power of the range extender according to claim 1, wherein, The step of reducing the power of the range extender of the vehicle according to the decreasing rate of the opening degree and the charging risk level includes: When the decreasing rate of the opening degree is greater than a first decreasing rate threshold and the charging risk level of the battery is a high risk level, reducing the power of the range extender to a first power at a first rate detection moment, where the first power is the accessory demand power in the vehicle, and the first rate detection moment is the moment when it is first detected that the decreasing rate of the opening degree is greater than the first decreasing rate threshold.

5. The control method for the power of the range extender according to claim 1, wherein The step of reducing the power of the range extender of the vehicle according to the decreasing rate of the opening degree and the charging risk level includes: When the decreasing rate of the opening degree is greater than a third decreasing rate threshold and the charging risk level of the battery is a low risk level, reducing the power of the range extender to a third power at a second rate detection moment, where the third power is the sum of the first power, a compensation power, and a fourth power, the fourth power is the larger value between 0 and a first difference, the first difference is the difference between the driving power and the maximum discharge power of the battery, the third decreasing rate threshold is greater than the first decreasing rate threshold, and the second rate detection moment is the moment when it is first detected that the decreasing rate of the opening degree is greater than the third decreasing rate threshold.

6. The control method for the power of the range extender according to claim 1, wherein, Reducing the power of the range extender of the vehicle according to the opening degree reduction rate and the charging risk level includes: When the opening degree reduction rate is greater than a second reduction rate threshold and the charging risk level of the battery is a medium risk level, reducing the power of the range extender to a second power at a third rate detection moment, where the second power is the smaller value of a third power and a first sum value, and the first sum value is the sum of the maximum rechargeable power of the battery and a first power. The second reduction rate threshold is greater than the first reduction rate threshold and less than a third reduction rate threshold, and the third rate detection moment is the moment when it is first detected that the opening degree reduction rate is greater than the second reduction rate threshold. The second reduction rate threshold is greater than the first reduction rate threshold and less than the third reduction rate threshold, and the third rate detection moment is the moment when it is first detected that the opening degree reduction rate is greater than the second reduction rate threshold.

7. A control device for the power of a range extender, the device comprising: A first acquisition module for acquiring the charging risk level of a battery in a vehicle; A second acquisition module for acquiring the opening degree reduction rate of an accelerator pedal in the vehicle within a first duration after a first moment when the opening degree of the accelerator pedal of the vehicle decreases, where the first moment is the moment when the opening degree of the accelerator pedal starts to decrease; A reduction module for reducing the power of the range extender of the vehicle according to the opening degree reduction rate and the charging risk level.

8. A control device for the power of a range extender, the control device for the power of the range extender comprising: A processor and a memory storing computer program instructions; When the processor executes the computer program instructions, the control method for the power of the range extender according to any one of claims 1-6 is implemented.

9. A computer storage medium, on which computer program instructions are stored, and when the computer program instructions are executed by a processor, the control method for the power of the range extender according to any one of claims 1-6 is implemented.

10. A vehicle, the vehicle includes computer program instructions, and when the computer program instructions are executed by a processor, the control method for the power of the range extender according to any one of claims 1-6 is implemented.

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