Range-extended automobile energy control method and device, range-extended automobile and storage medium

Abstract

The embodiment of the invention provides an extended-range automobile energy control method and device, an extended-range automobile and a storage medium, and relates to the technical field of vehicle control. The method comprises the steps that in the running process of the extended-range automobile, if a battery of the extended-range automobile is in a high-charge state and the running state of the extended-range automobile is a long downhill state, the controller controls the extended-range automobile to enter a high-charge extended-range mode, and after the extended-range automobile enters the high-charge extended-range mode, a power system of the extended-range automobile is controlled to run according to a preset strategy. Therefore, under the condition that the battery cannot be charged, energy generated by electric braking of the extended-range automobile can be consumed through all the components of the extended-range automobile, then the electric braking force generated when the extended-range automobile goes downhill for a long time is guaranteed, abrasion of a mechanical braking system is reduced, and the service life of the mechanical braking system is prolonged.

Description

Technical Field

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

[0002] When the battery is at a high state of charge, the extended-range vehicle switches to pure electric mode. In this mode, the battery does not accept charging current and no energy recovery is performed, so the extended-range vehicle does not use the electric braking system.

[0003] When a range-extended vehicle is traveling on a long downhill slope, if the battery is sufficiently charged, the vehicle will rely entirely on the mechanical brake system to slow down. This situation not only accelerates the wear of the mechanical brake system, but also may cause safety issues due to overheating of the mechanical brake system during long or long downhill driving. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide an energy control method and device for an extended-range vehicle, an extended-range vehicle, and a storage medium.

[0005] In order to achieve the above objectives, the technical solutions adopted in the embodiments of the present invention are as follows:

[0006] In a first aspect, the present invention provides an energy control method for a range-extended vehicle, which is applied to a controller of the range-extended vehicle, wherein the range-extended vehicle also includes a power system. The method comprises:

[0007] During the driving of the range-extended vehicle, if the battery of the range-extended vehicle is in a high-charge state and the driving state of the range-extended vehicle is a long downhill state, controlling the range-extended vehicle to enter a high-charge extended-range mode;

[0008] After the range-extended vehicle enters the high-charge range-extended mode, the power system of the range-extended vehicle is controlled to operate according to a preset strategy so that each component of the range-extended vehicle consumes energy generated by electric braking of the range-extended vehicle.

[0009] Optionally, the method further includes a step of determining whether the driving state of the extended-range vehicle is a long downhill state, which includes:

[0010] Real-time acquisition of the road slope and driving speed of the extended-range vehicle;

[0011] If the driving road slope is continuously greater than the preset slope and the driving speed is continuously greater than the preset speed within the preset time period, it is determined that the driving state of the extended-range vehicle is a long downhill state.

[0012] Optionally, the power system includes a generator, an engine, and a drive motor, and the step of controlling the power system of the range-extended vehicle to operate according to a first preset strategy includes:

[0013] Controlling the generator to not generate electricity and to operate at a preset speed to drive the engine to rotate;

[0014] When the engine rotates along with the generator, controlling the engine not to perform a fuel injection operation;

[0015] determining, based on the generator power and electrical equipment power of the range-extended vehicle, a first regenerative power of the drive motor when the range-extended vehicle is in a high-charge range-extended mode;

[0016] According to the first recovered power, the drive motor is controlled to perform energy recovery.

[0017] Optionally, the electrical equipment power includes power conversion power, environmental control system power, and energy storage system thermal management power. The step of determining the first regenerative power of the drive motor when the range-extended vehicle is in the high-charge range-extended mode based on the generator power and the electrical equipment power of the range-extended vehicle includes:

[0018] The sum of the generator power, the power conversion power, the environmental control system power, and the energy storage system thermal management power is used as the first recovered power.

[0019] Optionally, the method further includes:

[0020] After the range-extended vehicle enters the high-charge range-extended mode, if the battery of the range-extended vehicle is not in the high-charge state or the driving state of the range-extended vehicle is not a long downhill state, the range-extended vehicle is controlled to exit the high-charge range-extended mode.

[0021] Optionally, the power system includes a generator, an engine, and a drive motor, and the method further includes:

[0022] After the range-extended vehicle exits the high-charge range-extended mode, controlling the generator to stop running and enter a standby state so that the engine no longer rotates with the generator;

[0023] determining, based on the power of the electrical equipment of the range-extended vehicle, a second regenerative power of the drive motor when the range-extended vehicle is not in the high-charge range-extended mode;

[0024] According to the second recovered power, the drive motor is controlled to perform energy recovery.

[0025] Optionally, the electrical equipment power includes power conversion power, environmental control system power, and energy storage system thermal management power. The step of determining, based on the electrical equipment power of the range-extended vehicle, the second regenerative power of the drive motor when the range-extended vehicle is not in the high-charge range-extended mode includes:

[0026] The sum of the power conversion power, the environmental control system power, and the energy storage system thermal management power is used as the second recovered power.

[0027] In a second aspect, the present invention provides an energy control device for a range-extended vehicle, which is applied to a controller of a range-extended vehicle, wherein the range-extended vehicle also includes a power system, and the device includes:

[0028] a first control module configured to control the range-extended vehicle to enter a high-charge extended-range mode when the battery of the range-extended vehicle is in a high-charge state and the range-extended vehicle is traveling on a long downhill slope;

[0029] The second control module is configured to control the power system of the range-extended vehicle to operate according to a first preset strategy after the range-extended vehicle enters the high-charge range-extended mode, so that each component of the range-extended vehicle consumes energy generated by electric braking of the range-extended vehicle.

[0030] In a third aspect, the present invention provides an extended-range vehicle, comprising a controller, the controller comprising a processor and a memory, the memory storing machine-executable instructions that can be executed by the processor, and the processor executing the machine-executable instructions to implement the extended-range vehicle energy control method described in the first aspect.

[0031] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the method for controlling energy of an extended-range vehicle as described in the first aspect is implemented.

[0032] An embodiment of the present invention provides an energy control method for a range-extended vehicle. A controller controls the range-extended vehicle to enter a high-charge range-extended mode when the battery of the range-extended vehicle is in a high state of charge and the vehicle is traveling on a long downhill slope. After the range-extended vehicle enters the high-charge range-extended mode, the controller controls the vehicle's power system to operate according to a preset strategy, so that the various components of the range-extended vehicle consume energy generated by the vehicle's electric braking. Because the embodiment of the present invention establishes a high-charge range-extended mode and controls the vehicle to enter the high-charge range-extended mode when the battery of the range-extended vehicle is in a high state of charge and the vehicle is traveling on a long downhill slope, and controls the vehicle's power system to operate according to a preset strategy, when the battery cannot be charged, the vehicle's various components can consume energy generated by the vehicle's electric braking, thereby ensuring the vehicle's electric braking force during long downhill descents, reducing wear on the mechanical brake system and increasing its service life.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 A schematic structural block diagram of a range-extended vehicle provided by an embodiment of the present invention is shown;

[0036] Figure 2 A schematic block diagram of the structure of a controller provided by an embodiment of the present invention is shown;

[0037] Figure 3 The schematic diagram shows a process of an extended range vehicle energy control method provided by an embodiment of the present invention. Figure 1 ;

[0038] Figure 4 The schematic diagram shows a process of an extended range vehicle energy control method provided by an embodiment of the present invention. Figure 2 ;

[0039] Figure 5 A functional unit block diagram of an energy control device for a range-extended vehicle provided by an embodiment of the present invention is shown.

[0040] Icon: 100 - controller; 110 - memory; 120 - processor; 130 - communication module; 200 - range-extended vehicle energy control device; 201 - first control module; 202 - second control module. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely intended to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0043] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0044] like Figure 1 As shown, the range-extended vehicle includes a power system and a controller 100. Figure 2 is a block diagram of a controller 100 for an extended-range vehicle. The controller 100 includes a memory 110, a processor 120, and a communication module 130. The memory 110, processor 120, and communication module 130 are electrically connected to each other, directly or indirectly, to enable data transmission or exchange. For example, these components may be electrically connected via one or more communication buses or signal lines.

[0045] The memory 110 is used to store programs or data. The memory 110 may be, but is not limited to, a random access memory (RAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), etc.

[0046] The processor 120 is used to read / write data or programs stored in the memory 110 and execute corresponding functions.

[0047] The communication module 130 is used to establish a communication connection between the controller 100 and other communication terminals through the network, and to send and receive data through the network.

[0048] It should be understood that Figure 2 The structure shown is only a schematic diagram of the structure of the controller 100. The controller 100 may also include Figure 2 More or fewer components than shown, or with Figure 1 Different configurations shown. Figure 2 Each component shown in the figure can be implemented by hardware, software or a combination thereof.

[0049] In order to improve the electric braking force of a range-extended vehicle during a long downhill descent, reduce the wear of the mechanical brake system and increase the service life of the mechanical brake system, an embodiment of the present invention provides an energy control method for a range-extended vehicle controller applied to a range-extended vehicle, which will be described in detail below.

[0050] Please refer to Figure 3 The range-extended vehicle energy control method includes steps S101 to S102.

[0051] S101 , during the driving of the extended-range vehicle, if the battery of the extended-range vehicle is in a high-charge state and the driving state of the extended-range vehicle is a long downhill state, the extended-range vehicle is controlled to enter a high-charge extended-range mode.

[0052] Among them, the battery of the extended-range vehicle is in a high state of charge, which means that the SOC of the battery is not less than 90.

[0053] In a possible implementation, whether the driving state of the extended-range vehicle is a long downhill state may be determined by acquiring the driving road gradient and driving speed of the extended-range vehicle in real time.

[0054] In an embodiment of the present invention, if the slope of the road on which the extended-range vehicle is traveling is continuously greater than a preset slope and the driving speed is continuously greater than a preset speed within a preset time period, it is determined that the driving state of the extended-range vehicle is a long downhill state.

[0055] The preset duration, preset slope, and preset speed can be set according to actual needs. For example, the preset duration can be 10 seconds, the preset slope can be 2 degrees, and the preset speed can be 40 km / h. If the range-extended vehicle's road slope is continuously greater than 2 degrees and the driving speed is continuously greater than 40 km / h within 10 seconds, it can be determined that the range-extended vehicle is in a long downhill state, i.e., the range-extended vehicle is traveling on a long downhill road.

[0056] The conventional range-extended mode converts the energy generated by the electric braking of the range-extended vehicle into electricity and charges it into the battery. However, charging is not allowed when the battery is in a high SOC state. Therefore, when the range-extended vehicle is traveling on a long downhill road and the battery is in a high SOC state, in order to ensure that the range-extended vehicle can achieve electric braking, the range-extended vehicle needs to enter the high-charge range-extended mode instead of the conventional range-extended mode.

[0057] S102 , after the range-extended vehicle enters the high-charge range-extended mode, controlling the power system of the range-extended vehicle to operate according to a preset strategy, so that various components of the range-extended vehicle consume energy generated by electric braking of the range-extended vehicle.

[0058] After the extended-range vehicle enters the high-charge extended-range mode, the power system of the extended-range vehicle is controlled to operate according to a preset strategy, so that the energy generated by the electric braking of the extended-range vehicle is no longer converted into battery power, but is consumed by the various components of the extended-range vehicle.

[0059] The power system of the extended-range vehicle includes an engine, a generator, and a drive motor. The preset strategy includes the following:

[0060] Content 1: Control the generator to not generate electricity and run at a preset speed to drive the engine to rotate;

[0061] Content 2: When the engine rotates with the generator, the engine is controlled not to perform fuel injection operation;

[0062] Content three: Based on the generator power and electrical equipment power of the extended-range vehicle, determine the first recovery power of the drive motor when the extended-range vehicle is in a high-charge extended-range mode; and control the drive motor to perform energy recovery according to the first recovery power.

[0063] It is understandable that after the extended-range vehicle enters the high-charge extended-range mode, the drive motor will recover energy. Since the battery is in a high SOC state, charging is not allowed. The engine can be driven to idle by running the generator in speed mode, thereby consuming the energy recovered by the drive motor and enabling the drive motor to obtain electric braking force.

[0064] It should be noted that the rotational speed of the generator may be set according to corresponding working conditions, that is, the generator may adopt different rotational speeds (eg rated rotational speeds) to adapt to different working conditions.

[0065] In order to improve the electric braking force of the drive motor, in addition to using the generator to drive the engine to idle to consume the energy recovered by the drive motor, other components of the extended-range vehicle, including the DC-DC converter, the passenger compartment air-conditioning system, the battery cooling and heating system, etc., can also be used to consume the energy recovered by the drive motor. Accordingly, the recovered power of the drive motor can be obtained based on the generator power and electrical equipment power of the extended-range vehicle.

[0066] In a possible implementation, the power of the electrical equipment includes the power conversion power, the environmental control system power and the thermal management power of the energy storage system. The sum of the generator power, the power conversion power, the environmental control system power and the thermal management power of the energy storage system can be used as the first recovery power of the driving motor when the extended-range vehicle is in the high-charge extended-range mode.

[0067] Among them, generator power refers to the power consumed by the generator when driving the generator to idle, power conversion power refers to the power consumed by the DC-DC converter of the extended-range vehicle, environmental control system power refers to the power consumed by the passenger compartment air-conditioning system, and energy storage system thermal management power refers to the power consumed by the battery cooling and heating system.

[0068] It can be understood that after the extended-range vehicle enters the high-charge extended-range mode, the recovery power of the drive motor is set to the sum of the power consumption of the generator driving the generator to idle, the power consumption of the DC-DC converter, the power consumption of the passenger compartment air-conditioning system and the power consumption of the battery cooling and heating system, so that the recovery energy of the drive motor does not exceed the energy that can be consumed by the generator, engine, DC-DC converter, passenger compartment air-conditioning system and battery cooling and heating system, thereby improving the electric braking force of the drive motor, reducing the use of the mechanical braking system, and extending the service life of the mechanical braking system.

[0069] Furthermore, if Figure 4 As shown, the range-extended vehicle energy control method provided by the embodiment of the present invention further includes step S103 parallel to step S102.

[0070] S103 , after the range-extended vehicle enters the high-charge range-extended mode, if the battery of the range-extended vehicle is not in a high-charge state or the driving state of the range-extended vehicle is not a long downhill state, the range-extended vehicle is controlled to exit the high-charge range-extended mode.

[0071] After the range-extended vehicle enters the high-charge range-extended mode, it is necessary to determine the timing for the range-extended vehicle to exit the high-charge range-extended mode by monitoring the charge state of the battery of the range-extended vehicle and the driving state of the range-extended vehicle.

[0072] The battery of the extended-range vehicle is not in a high state of charge when the battery's SOC is less than 90. The driving state of the extended-range vehicle is not a long downhill state when the slope of the road on which the extended-range vehicle is traveling is continuously less than a preset slope within a preset time period.

[0073] The preset duration and preset slope can be set according to actual needs. For example, the preset duration can be 10 seconds and the preset slope can be 2 degrees. If the slope of the road on which the extended-range vehicle is traveling is continuously less than 2 degrees within 10 seconds, it can be determined that the extended-range vehicle is not in a long downhill state, that is, the extended-range vehicle is not traveling on a long downhill road.

[0074] When the battery of the range-extended vehicle is no longer in a high state of charge and / or the range-extended vehicle is no longer traveling on a long downhill road, it is necessary to control the range-extended vehicle to exit the high-charge range-extended mode, and after the range-extended vehicle exits the high-charge range-extended mode, coordinate the power system to operate normally. The coordination content is as follows:

[0075] Content 1: Control the generator to stop running and enter a standby state so that the engine no longer rotates with the generator;

[0076] Content 2: Based on the power of the electrical equipment of the extended-range vehicle, determine the second recovery power of the drive motor when the extended-range vehicle is not in the high-charge extended-range mode; according to the second recovery power, control the drive motor to perform energy recovery.

[0077] After the extended-range vehicle exits the high-charge extended-range mode, the generator stops working, the speed drops to 0, and it switches from the speed mode to the high-voltage standby state, no longer driving the engine to idle, so that the generator and engine no longer consume the energy recovered by the drive motor.

[0078] In this case, the energy recovered by the drive motor is consumed by the extended-range vehicle's DC-DC converter, passenger compartment air conditioning system, battery cooling and heating system, etc.

[0079] It can be understood that after the extended-range vehicle exits the high-charge extended-range mode, the recovery power of the drive motor is set to the sum of the power consumption of the DC-DC converter, the power consumption of the passenger compartment air-conditioning system and the power consumption of the battery cooling and heating system, so that the recovery energy of the drive motor does not exceed the energy that can be consumed by the DC-DC converter, the passenger compartment air-conditioning system and the battery cooling and heating system, thereby ensuring the electric braking force of the drive motor, reducing the use of the mechanical braking system, and extending the service life of the mechanical braking system.

[0080] In order to execute the corresponding steps in the above embodiments and various possible methods, a method for implementing the energy control device of a range-extended vehicle is given below. Figure 5 , Figure 5 This is a functional module diagram of an energy control device for an extended-range vehicle provided in an embodiment of the present invention. It should be noted that the basic principles and technical effects of the energy control device 200 for an extended-range vehicle provided in this embodiment are the same as those of the above-mentioned embodiments. For the sake of brevity, any parts not mentioned in this embodiment may be referred to the corresponding contents of the above-mentioned embodiments. The energy control device 200 for an extended-range vehicle includes:

[0081] The first control module 201 is configured to control the range-extended vehicle to enter a high-charge extended-range mode if the battery of the range-extended vehicle is in a high-charge state and the vehicle is traveling on a long downhill slope.

[0082] The second control module 202 is configured to control the power system of the extended-range vehicle to operate according to a first preset strategy after the extended-range vehicle enters the high-charge extended-range mode, so that each component of the extended-range vehicle consumes energy generated by electric braking of the extended-range vehicle.

[0083] Optionally, the above modules can be stored in the form of software or firmware. Figure 2 shown in the memory and can be Figure 2 Meanwhile, the data and program codes required to execute the above modules may be stored in the memory.

[0084] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architectures, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present invention. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a portion of code, and the module, program segment or a portion of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions.

[0085] In addition, the functional modules in the various embodiments of the present invention may be integrated together to form an independent part, or each module may exist independently, or two or more modules may be integrated to form an independent part.

[0086] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0087] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A method for controlling energy of a range-extended vehicle, characterized in that: A controller applied to a range-extended vehicle, wherein the range-extended vehicle further includes a power system, and the method includes: During the driving of the extended-range vehicle, if the battery of the extended-range vehicle is in a high-charge state and the driving state of the extended-range vehicle is a long downhill state, the extended-range vehicle is controlled to enter a high-charge extended-range mode; After the range-extended vehicle enters the high-charge range-extended mode, the power system of the range-extended vehicle is controlled to operate according to a preset strategy so that each component of the range-extended vehicle consumes energy generated by the electric braking of the range-extended vehicle.

2. The method according to claim 1, characterized in that The method further includes a step of determining whether the driving state of the extended-range vehicle is a long downhill state, which includes: Real-time acquisition of the road slope and driving speed of the extended-range vehicle; If the driving road slope is continuously greater than the preset slope and the driving speed is continuously greater than the preset speed within the preset time period, it is determined that the driving state of the extended-range vehicle is a long downhill state.

3. The method according to claim 1, characterized in that The power system includes a generator, an engine and a drive motor, and the step of controlling the power system of the range-extended vehicle to operate according to a first preset strategy includes: Controlling the generator not to generate electricity but to run at a preset speed to drive the engine to rotate; When the engine rotates with the generator, controlling the engine not to perform a fuel injection operation; Determining, according to the generator power and the electrical equipment power of the range-extended vehicle, a first recovery power of the drive motor when the range-extended vehicle is in a high-charge range-extended mode; According to the first recovered power, the drive motor is controlled to perform energy recovery.

4. The method according to claim 3, characterized in that The electrical equipment power includes power conversion power, environmental control system power and energy storage system thermal management power. The step of determining the first recovery power of the drive motor when the range-extended vehicle is in a high-charge range-extended mode according to the generator power and the electrical equipment power of the range-extended vehicle includes: The sum of the generator power, the power conversion power, the environmental control system power and the thermal management power of the energy storage system is used as the first recovery power.

5. The method according to claim 1, characterized in that The method further comprises: After the range-extended vehicle enters the high-charge range-extended mode, if the battery of the range-extended vehicle is not in the high-charge state or the driving state of the range-extended vehicle is not a long downhill state, the range-extended vehicle is controlled to exit the high-charge range-extended mode.

6. The method according to claim 5, characterized in that The power system includes a generator, an engine and a drive motor, and the method further includes: After the range-extended vehicle exits the high-charge range-extended mode, controlling the generator to stop running and enter a standby state so that the engine no longer rotates with the generator; determining, according to the power of the electrical equipment of the range-extended vehicle, a second recovery power of the drive motor when the range-extended vehicle is not in a high-charge range-extended mode; According to the second recovered power, the drive motor is controlled to perform energy recovery.

7. The method according to claim 6, characterized in that The electrical equipment power includes power conversion power, environmental control system power and energy storage system thermal management power. The step of determining the second recovery power of the drive motor when the range-extended vehicle is not in the high-charge range-extended mode according to the electrical equipment power of the range-extended vehicle includes: The sum of the power conversion power, the environmental control system power and the energy storage system thermal management power is used as the second recovery power.

8. An energy control device for a range-extended vehicle, characterized in that: A controller applied to a range-extended vehicle, wherein the range-extended vehicle further includes a power system, and the device includes: A first control module is used to control the range-extended vehicle to enter a high-charge range-extended mode if the battery of the range-extended vehicle is in a high-charge state and the range-extended vehicle is in a long downhill state during the driving process of the range-extended vehicle; The second control module is used to control the power system of the extended-range vehicle to operate according to a first preset strategy after the extended-range vehicle enters the high-charge extended-range mode, so that each component of the extended-range vehicle consumes the energy generated by the electric braking of the extended-range vehicle.

9. A range-extended vehicle, characterized in that: It includes a controller, which includes a processor and a memory, the memory stores machine executable instructions that can be executed by the processor, and the processor can execute the machine executable instructions to implement the extended-range vehicle energy control method described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the range-extended vehicle energy control method according to any one of claims 1 to 7 is implemented.

Images