A range extended electric vehicle power generation control method, device, equipment and medium

Abstract

The application discloses a range-extender electric vehicle power generation control method and device, equipment and medium, and applies to the field of vehicle control. The method comprises the following steps: obtaining the running information of the range-extender electric vehicle; when the running information meets the first control demand, sending the limit instruction corresponding to the first control demand to the generator and the engine, so as to generate power by using the first power generation power corresponding to the limit instruction; if the running information meets the second control demand, sending the shutdown instruction to the engine; if the running information meets the third control demand, sending the start instruction to the engine; and if the running information meets the fourth control demand, sending the control instruction corresponding to the fourth control demand to the generator and the engine, so as to generate power by using the second power generation power corresponding to the control instruction. It can be seen that the application can effectively control the start and stop of the engine by comprehensively analyzing the running information, reasonably adjust the power generation power of the range-extender system, and improve the comfort of the driver and the overall vehicle NVH level.

Description

Technical Field

[0001] This application relates to the field of vehicle control, and in particular to a method, apparatus, equipment and medium for controlling the power generation of a range-extended electric vehicle. Background Technology

[0002] With the development of technology, range-extended electric vehicles have gradually become a mode of transportation. Compared with traditional pure electric vehicles, range-extended electric vehicles can achieve all their power performance in pure electric mode. When the on-board rechargeable energy storage system cannot meet the range requirements, the on-board auxiliary power supply device can be turned on to provide power to the power system to extend the range.

[0003] In recent years, when range-extended electric vehicles need to activate the auxiliary power supply to provide electricity to the power system and extend the driving range, the vehicle controller typically continuously monitors the power battery information and controls the range extender's power generation based on the current power battery SOC (State of Charge, remaining charge), selecting a corresponding fixed power generation frequency. However, current technology cannot determine the corresponding fixed power generation frequency based solely on power battery information to meet the current operator's needs for the vehicle. Furthermore, it cannot achieve reasonable control of power generation and engine start-stop when the vehicle is at low speeds or when power demand is low, affecting the overall vehicle NVH (Noise, Vibration, Harshness) level.

[0004] In view of the above-mentioned technologies, finding a power generation control method for range-extended electric vehicles is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a method, apparatus, device, and medium for controlling the power generation of a range-extended electric vehicle. This solves the problem in existing technologies where a fixed power generation frequency is used to generate electricity for the vehicle based on power information, making it impossible to adjust the power generation frequency in real time according to the vehicle's operating information to meet the current needs of different vehicles.

[0006] To address the aforementioned technical problems, this application provides a power generation control method for range-extended electric vehicles, comprising:

[0007] Obtain the operating information of the range-extended electric vehicle, including: hybrid mode switch hard-wired signal, engine start switch hard-wired signal, power battery information, current vehicle speed, current throttle opening value, and the duration of the current range-extended electric vehicle state;

[0008] If the operating information meets the first control requirement, a limiting command corresponding to the first control requirement is sent to the generator and engine so that the first power generation corresponding to the limiting command can be used to generate electricity.

[0009] If the operating information meets the second control requirement, send a shutdown command to the engine;

[0010] If the operating information meets the third control requirements, send a start command to the engine;

[0011] If the operating information meets the fourth control requirement, the control command corresponding to the fourth control requirement is sent to the generator and engine so that the second power generation capacity corresponding to the control command can be used to generate electricity.

[0012] Preferably, the operational information meets the first control requirement, including:

[0013] Hybrid mode switch hardwired signal is valid;

[0014] Furthermore, the power battery information conforms to normal charge and discharge status information;

[0015] And the current vehicle speed is less than the first speed limit;

[0016] And the current throttle opening value is less than the first opening limit.

[0017] Preferably, sending a limiting command corresponding to the first control requirement to the generator and engine includes:

[0018] The first demand level is determined based on the first speed limit and the first opening limit;

[0019] Determine the corresponding speed and torque values ​​based on the level of primary demand;

[0020] Send a speed limit command corresponding to the speed value to the generator;

[0021] Send a torque limit command corresponding to the torque value to the engine.

[0022] Preferably, the operational information meets the second control requirement, including:

[0023] The current vehicle speed is less than the second speed limit;

[0024] And the current throttle opening value is less than the second opening limit;

[0025] Furthermore, the hardwired signal of the engine start switch is invalid;

[0026] Furthermore, the current extended-range electric vehicle state is maintained for a longer period than the first preset time.

[0027] Preferably, the operational information meets the third control requirements, including:

[0028] The current vehicle speed is greater than the third speed limit or the current throttle opening is greater than the third opening limit;

[0029] Furthermore, the current extended-range electric vehicle state is maintained for a longer period than the second preset time.

[0030] Preferably, the operational information meets the fourth control requirement, including:

[0031] The current vehicle speed is greater than the fourth speed limit;

[0032] Or the current throttle opening value is greater than the fourth opening limit.

[0033] Preferably, the control command corresponding to the fourth control requirement is sent to the generator and the engine, including:

[0034] The second level of demand is determined based on the current vehicle speed and current throttle opening.

[0035] The corresponding speed and torque values ​​are determined based on the level of secondary demand.

[0036] Send a speed control command corresponding to the speed value to the generator;

[0037] Send a torque control command corresponding to the torque value to the engine.

[0038] To address the aforementioned technical problems, this application also provides a range-extended electric vehicle power generation control device, comprising:

[0039] The acquisition module is used to acquire the operating information of the range-extended electric vehicle. The operating information includes: the hybrid mode switch hard-wired signal, the engine start switch hard-wired signal, the power battery information, the current vehicle speed, the current throttle opening value, and the duration of the current range-extended electric vehicle state.

[0040] The first control module is used to send a limiting command corresponding to the first control requirement to the generator and the engine if the operating information meets the first control requirement, so as to generate electricity using the first power generation power corresponding to the limiting command.

[0041] The second control module is used to send a shutdown command to the engine if the operating information meets the second control requirements.

[0042] The third control module is used to send a start command to the engine if the operating information meets the third control requirements.

[0043] The fourth control module is used to send control commands corresponding to the fourth control requirements to the generator and engine if the operating information meets the fourth control requirements, so that the second power generation capacity corresponding to the control commands can be used to generate electricity.

[0044] To address the aforementioned technical problems, this application provides an electronic device, including a memory for storing computer programs;

[0045] The processor is used to execute computer programs to implement the steps of the above-described range-extended electric vehicle power generation control method.

[0046] To address the aforementioned technical problems, this application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the above-described range-extended electric vehicle power generation control method.

[0047] This application provides a method for controlling the power generation of a range-extended electric vehicle (REEV), comprising: acquiring operating information of the REEV, wherein the operating information includes: a hybrid mode switch hard-wired signal, an engine start-stop switch hard-wired signal, power battery information, current vehicle speed, current throttle opening value, and the duration of the current REEV state; when the operating information meets a first control requirement, sending a limiting command corresponding to the first control requirement to the generator and engine, so as to generate electricity using a first power output corresponding to the limiting command; if the operating information meets a second control requirement, sending a stop command to the engine; if the operating information meets a third control requirement, sending a start command to the engine; if the operating information meets a fourth control requirement, sending a control command corresponding to the fourth control requirement to the generator and engine, so as to generate electricity using a second power output corresponding to the control command. Therefore, this application employs a method combining range extender power regulation and engine start-stop control to effectively control the range extender of the REEV. During vehicle operation, the vehicle controller continuously monitors information such as the hybrid mode switch hard-wired signal, the engine start switch hard-wired signal, power battery information, current vehicle speed, current throttle opening value, and the duration of the current range-extended electric vehicle status. This information is comprehensively analyzed, and the results are categorized into four types: generating electricity using the first power output; controlling engine shutdown; controlling engine startup; and generating electricity using the second power output. By monitoring and receiving relevant vehicle information, effectively controlling engine start / stop, and rationally adjusting the range extender system's power output, the controller improves driving comfort and overall NVH levels in the range-extended electric vehicle, thereby enhancing the driver's experience. Attached Figure Description

[0048] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 A flowchart of a power generation control method for a range-extended electric vehicle provided in this application;

[0050] Figure 2 This is a structural diagram of the range-extending system inside a range-extended electric vehicle.

[0051] Figure 3 This is the control logic diagram for a range-extended electric vehicle.

[0052] Figure 4 A block diagram of a range-extended electric vehicle power generation control device provided in another embodiment of this application;

[0053] Figure 5 A structural diagram of an electronic device provided in another embodiment of this application. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0055] The core of this application is to provide a method, device, equipment, and medium for controlling the power generation of a range-extended electric vehicle.

[0056] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0057] Figure 1 A flowchart of a power generation control method for a range-extended electric vehicle provided in this application includes:

[0058] S10: Obtain the operating information of the range-extended electric vehicle, including: hybrid mode switch hard-wired signal, engine start switch hard-wired signal, power battery information, current vehicle speed, current throttle opening value, and the duration of the current range-extended electric vehicle state.

[0059] In a specific embodiment, a range-extended electric vehicle (REEV) is an electric vehicle that can achieve all its power performance in pure electric mode. When the onboard rechargeable energy storage system cannot meet the range requirements, an onboard auxiliary power supply device is activated to provide electrical energy to the power system, thereby extending the driving range. This auxiliary power supply device has no drive shaft (belt) or other transmission connection to the drive system. Its working principle is as follows: when the battery power is low, the engine generates electricity to charge the battery, operating within its optimal speed range. The battery then provides energy to the electric motor that directly drives the vehicle. When the battery power is sufficient, the engine stops working, and the battery drives the electric motor to provide propulsion for the entire vehicle. In other words, a range-extended electric vehicle can generate its own electricity when the battery is low.

[0060] Figure 2This is a structural diagram of the range-extending system in a range-extended electric vehicle, which includes: Battery Management System (BMS), electrical accessories (oil pump, air pump, etc.), drive motor controller (MCU), generator controller (GCU), generator, engine, drive motor, and transmission. Figure 3 This is the control logic diagram for a range-extended electric vehicle (REEV). The REEV control system includes multiple vehicle controller units (VCUs), all of which communicate with the vehicle controller via a CAN network. The vehicle controller is connected to the processing unit. These include: Battery Management System (BMS), Generator Controller (GCU), Vehicle Controller (VCU), Engine Controller (EMS), Drive Motor Controller (MCU), Transmission Controller (TCU), and external hardwired inputs. Specifically, the system obtains the hybrid mode switch hardwired signal and the engine start switch hardwired signal through external hardwired inputs; it obtains power battery information through the Battery Management System; and it obtains the current vehicle speed and current throttle opening value based on the Generator Controller, Engine Controller, Drive Motor Controller, and Transmission Controller. Finally, it obtains the duration of the current REEV state through the vehicle controller.

[0061] Among them, the vehicle speed is calculated based on the collected drive motor speed, and the throttle opening value is calculated based on the detected throttle voltage analog signal.

[0062] S11: If the operating information meets the first control requirement, send the limiting command corresponding to the first control requirement to the generator and engine so that the first power generation corresponding to the limiting command can be used for power generation.

[0063] S12: If the operating information meets the second control requirements, send a shutdown command to the engine.

[0064] S13: If the operating information meets the third control requirements, send a start command to the engine.

[0065] S14: If the operating information meets the fourth control requirement, send the control command corresponding to the fourth control requirement to the generator and engine so that the second power generation corresponding to the control command can be used to generate electricity.

[0066] In a specific embodiment, it is determined whether the hybrid mode switch hard-wired signal, engine start switch hard-wired signal, power battery information, current vehicle speed, current throttle opening value, and the duration of the current extended-range electric vehicle state in the operating information meet the first, second, third, or fourth control requirements. If the corresponding control requirement is met, the corresponding instruction is executed. It should be noted that this application acquires six types of information, but at least two types are considered when determining whether different control requirements are met. That is, while six types of information are acquired, in practice, at least two types of information are sufficient to determine which control requirement the current vehicle's operating information meets, and thus execute the corresponding instruction.

[0067] This application categorizes the current vehicle state into four types of demands: First, when the operating information meets the first control demand, a limiting command corresponding to the first control demand is sent to the generator and engine to generate electricity using the first power output corresponding to the limiting command. In other words, when the operating information meets the first control demand, the current generator speed has a limiting command, and the engine torque has a limiting command; the maximum power output (first power output) corresponding to the current speed and torque is used for power generation. Second, if the operating information meets the second control demand, a shutdown command is sent to the engine. In other words, when the vehicle's operating information meets the second control demand, the vehicle's state does not require engine startup, therefore a shutdown command is sent to the engine. Third, if the operating information meets the third control demand, a start command is sent to the engine. In other words, when the operating information meets the third control demand, the vehicle has just met the state of starting the engine for power generation, therefore a start command is sent to the engine. Fourth, if the operating information meets the fourth control demand, a control command corresponding to the fourth control demand is sent to the generator and engine to generate electricity using the second power output corresponding to the control command. In other words, at this time, the vehicle's demand is high, and the maximum power output (first power output) cannot meet the demand; in this case, the corresponding power output is determined based on the current vehicle operating information.

[0068] This application does not limit the conditions for the first control requirement, the second control requirement, the third control requirement, and the fourth control requirement to be met, and these conditions can be set by the user according to their needs.

[0069] This application provides a method for controlling the power generation of a range-extended electric vehicle (REEV), comprising: acquiring operating information of the REEV, wherein the operating information includes: a hybrid mode switch hard-wired signal, an engine start-stop switch hard-wired signal, power battery information, current vehicle speed, current throttle opening value, and the duration of the current REEV state; when the operating information meets a first control requirement, sending a limiting command corresponding to the first control requirement to the generator and engine, so as to generate electricity using a first power output corresponding to the limiting command; if the operating information meets a second control requirement, sending a stop command to the engine; if the operating information meets a third control requirement, sending a start command to the engine; if the operating information meets a fourth control requirement, sending a control command corresponding to the fourth control requirement to the generator and engine, so as to generate electricity using a second power output corresponding to the control command. Therefore, this application employs a method combining range extender power regulation and engine start-stop control to effectively control the range extender of the REEV. During vehicle operation, the vehicle controller continuously monitors information such as the hybrid mode switch hard-wired signal, the engine start switch hard-wired signal, power battery information, current vehicle speed, current throttle opening value, and the duration of the current range-extended electric vehicle status. This information is comprehensively analyzed, and the results are categorized into four types: generating electricity using the first power output; controlling engine shutdown; controlling engine startup; and generating electricity using the second power output. By monitoring and receiving relevant vehicle information, effectively controlling engine start / stop, and rationally adjusting the range extender system's power output, the controller improves driving comfort and overall NVH levels in the range-extended electric vehicle, thereby enhancing the driver's experience.

[0070] Based on the above embodiments, as a preferred embodiment, the operating information satisfies the first control requirement, including:

[0071] Hybrid mode switch hardwired signal is valid;

[0072] Furthermore, the power battery information conforms to normal charge and discharge status information;

[0073] And the current vehicle speed is less than the first speed limit;

[0074] And the current throttle opening value is less than the first opening limit.

[0075] The operational information meets the second control requirement, including:

[0076] The current vehicle speed is less than the second speed limit;

[0077] And the current throttle opening value is less than the second opening limit;

[0078] Furthermore, the hardwired signal of the engine start switch is invalid;

[0079] Furthermore, the current extended-range electric vehicle state is maintained for a longer period than the first preset time.

[0080] The operational information meets the requirements of the third control, including

[0081] The current vehicle speed is greater than the third speed limit or the current throttle opening is greater than the third opening limit;

[0082] Furthermore, the current extended-range electric vehicle state is maintained for a longer period than the second preset time.

[0083] The operational information meets the fourth control requirement, including:

[0084] The current vehicle speed is greater than the fourth speed limit;

[0085] Or the current throttle opening value is greater than the fourth opening limit.

[0086] In a specific embodiment, as a preferred embodiment, this application provides operating information that meets the first control requirement, including: the hybrid mode switch hardwired signal is valid, the power battery information conforms to normal charging and discharging state information, and the current vehicle speed is less than the first vehicle speed limit and the current throttle opening value is less than the first opening limit. At this time, whether the engine start switch hardwired signal in the vehicle operating information is valid and the duration of the current range-extended electric vehicle state do not affect the determination that the vehicle meets the first control requirement. At this time, the limiting command corresponding to the first control requirement is sent to the generator and the engine, including: determining the first requirement level according to the first vehicle speed limit and the first opening limit; determining the corresponding speed value and torque value according to the first requirement level; sending the speed limit command corresponding to the speed value to the generator; and sending the torque limit command corresponding to the torque value to the engine. That is to say, when the vehicle's hybrid mode switch signal is valid and the power battery information is in a normal charging and discharging state, the current vehicle speed is less than the first vehicle speed limit and the throttle opening value is less than the first opening limit, the vehicle controller sends the generator speed limit command and the engine torque limit command to limit the maximum power generation to the first power limit.

[0087] As a preferred option, the operating information meets the second control requirement, including: the current vehicle speed is less than the second speed limit; the current throttle opening value is less than the second opening limit; the engine start switch hardwired signal is invalid; and the duration of the current extended-range electric vehicle state is greater than the first preset time. In this case, whether the hybrid mode switch hardwired signal in the vehicle operating information is valid or whether the power battery information conforms to a normal charging / discharging state does not affect the determination that the current vehicle meets the second control requirement. At this time, the vehicle controller sends an engine shutdown command. For example: if the vehicle speed is less than the second speed limit and the throttle opening value is less than the second opening limit, and if the current state lasts for ten seconds, the engine start switch signal is invalid, and the vehicle controller sends an engine shutdown command.

[0088] As a preferred option, the operating information meets the third control requirement, including the current vehicle speed exceeding the third speed limit or the current throttle opening exceeding the third opening limit; and the duration of the current extended-range electric vehicle state exceeds the second preset time. At this point, the validity of the hybrid mode switch hard-wired signal, the validity of the engine start switch hard-wired signal, and whether the power battery information conforms to a normal discharge state do not affect the determination that the current vehicle meets the third control requirement. In this case, the vehicle controller sends an engine start command. For example: if the vehicle speed exceeds the third speed limit or the throttle opening exceeds the third opening limit, and the current state is maintained for five seconds, the vehicle controller sends an engine start command.

[0089] As a preferred option, the operating information meets the fourth control requirement, including: the current vehicle speed is greater than the fourth speed limit; or the current throttle opening value is greater than the fourth opening limit. At this point, the validity of the hybrid mode switch hard-wired signal, the validity of the engine start switch hard-wired signal, whether the power battery information conforms to a normal discharge state, and the duration of the current extended-range electric vehicle state do not affect the determination that the vehicle meets the fourth control requirement. Then, control commands corresponding to the fourth control requirement are sent to the generator and engine, including: determining the second requirement level based on the current vehicle speed and current throttle opening value; determining the corresponding speed and torque values ​​based on the second requirement level; sending a speed control command corresponding to the speed value to the generator; and sending a torque control command corresponding to the torque value to the engine. In other words, when the vehicle meets the fourth control requirement, the maximum power generation limit is removed, and the power generation capacity is determined based on the current requirement level.

[0090] It should be noted that this application is only one possible method, but it is not limited to this method. Users can customize the implementation according to their needs.

[0091] This application employs a method combining range extender power regulation and engine start-stop control to effectively control the range extender of a range-extended electric vehicle. During vehicle operation, the vehicle controller continuously monitors information such as the hybrid mode switch hard-wired signal, the engine start switch hard-wired signal, power battery information, current vehicle speed, current throttle opening value, and the duration of the current range-extended electric vehicle state. This information is comprehensively analyzed, and the results are categorized into four types: generating electricity using the first power output; controlling engine shutdown; controlling engine start; and generating electricity using the second power output. By monitoring and receiving relevant vehicle information, effectively controlling engine start-stop, and rationally adjusting the range extender system's power output, the driving comfort and overall NVH level of the range-extended electric vehicle can be improved, thereby enhancing the driver's experience.

[0092] The above embodiments have described in detail a method for controlling the power generation of a range-extended electric vehicle. This application also provides an embodiment of a corresponding control device for the power generation of a range-extended electric vehicle. It should be noted that this application describes the embodiments of the device from two perspectives: one based on functional modules and the other based on hardware.

[0093] Figure 4 A block diagram of a range-extended electric vehicle power generation control device provided in another embodiment of this application includes:

[0094] The acquisition module 11 is used to acquire the operating information of the range-extended electric vehicle. The operating information includes: the hybrid mode switch hard-wired signal, the engine start switch hard-wired signal, the power battery information, the current vehicle speed, the current throttle opening value, and the duration of the current range-extended electric vehicle state.

[0095] The first control module 12 is used to send a limiting command corresponding to the first control requirement to the generator and the engine if the operating information meets the first control requirement, so as to generate electricity using the first power generation power corresponding to the limiting command.

[0096] The second control module 13 is used to send a shutdown command to the engine if the operating information meets the second control requirements.

[0097] The third control module 14 is used to send a start command to the engine if the operating information meets the third control requirements.

[0098] The fourth control module 15 is used to send control commands corresponding to the fourth control requirements to the generator and engine if the operating information meets the fourth control requirements, so as to generate electricity using the second power output corresponding to the control commands.

[0099] Since the embodiments of the apparatus and the embodiments of the method correspond to each other, please refer to the description of the embodiments of the method for the embodiments of the apparatus, which will not be repeated here.

[0100] Figure 5 A structural diagram of an electronic device provided in another embodiment of this application, such as... Figure 5 As shown, the electronic device includes: a memory 20 for storing computer programs;

[0101] The processor 21 is used to execute a computer program to implement the steps of a range-extended electric vehicle power generation control method as described in the above embodiments.

[0102] The electronic devices provided in this embodiment may include, but are not limited to, smartphones, tablets, laptops, or desktop computers.

[0103] The processor 21 may include one or more processing cores, such as a quad-core processor or an octa-core processor. The processor 21 may be implemented using at least one of the following hardware forms: Digital Signal Processor (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 21 may also include a main processor and a coprocessor. The main processor, also known as the Central Processing Unit (CPU), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor 21 may integrate a Graphics Processing Unit (GPU), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the processor 21 may also include an Artificial Intelligence (AI) processor, which handles computational operations related to machine learning.

[0104] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In this embodiment, the memory 20 is used to store at least the following computer program 201, which, after being loaded and executed by the processor 21, is capable of implementing the relevant steps of the range-extended electric vehicle power generation control method disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202 and data 203, and the storage method may be temporary storage or permanent storage. The operating system 202 may include Windows, Unix, Linux, etc.

[0105] In some embodiments, the electronic device may further include a display screen 22, an input / output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.

[0106] Those skilled in the art will understand that Figure 5 The structures shown do not constitute a limitation on electronic devices and may include more or fewer components than those shown.

[0107] The electronic device provided in this application includes a memory and a processor. When the processor executes the program stored in the memory, it can implement the steps of the above-described range-extended electric vehicle power generation control method and has the same beneficial effects.

[0108] Finally, this application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps described in the above method embodiments.

[0109] It is understood that if the methods in the above embodiments are implemented as software functional units 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 this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and executes all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0110] The foregoing provides a detailed description of a range-extended electric vehicle power generation control method, apparatus, device, and medium. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0111] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A power generation control method for a range-extended electric vehicle, characterized in that, include: The operation information of the range-extended electric vehicle is obtained, including: hybrid mode switch hard-wired signal, engine start switch hard-wired signal, power battery information, current vehicle speed, current throttle opening value, and the duration of the current range-extended electric vehicle state. If the operating information meets the first control requirement, a limiting command corresponding to the first control requirement is sent to the generator and engine so that the first power generation power corresponding to the limiting command is used to generate electricity. If the operating information meets the second control requirement, a shutdown command is sent to the engine; If the operating information meets the third control requirement, a start command is sent to the engine; If the operating information meets the fourth control requirement, a control command corresponding to the fourth control requirement is sent to the generator and the engine so that the second power generation corresponding to the control command is used to generate electricity. The operating information that meets the first control requirement includes: the hybrid mode switch hardwired signal is valid; the power battery information conforms to normal charging and discharging status information; the current vehicle speed is less than the first vehicle speed limit; and the current throttle opening value is less than the first opening limit. The operating information satisfies the second control requirement, including: the current vehicle speed is less than the second vehicle speed limit; the current throttle opening value is less than the second opening limit; the engine start switch hardwire signal is invalid; and the duration of the current range-extended electric vehicle state is greater than the first preset time. The operating information meets the third control requirement, including: the current vehicle speed is greater than the third vehicle speed limit or the current throttle opening value is greater than the third opening limit; and the duration of the current range-extended electric vehicle state is greater than the second preset time. The operating information satisfies the fourth control requirement, including: the current vehicle speed is greater than the fourth vehicle speed limit; or the current throttle opening value is greater than the fourth opening limit.

2. The range-extended electric vehicle power generation control method according to claim 1, characterized in that, Sending limiting commands corresponding to the first control request to the generator and engine, including: The first demand level is determined based on the first speed limit and the first opening limit; Determine the corresponding speed and torque values ​​based on the first level of demand. Send a speed limit command corresponding to the speed value to the generator; Send a torque limit command corresponding to the torque value to the engine.

3. The range-extended electric vehicle power generation control method according to claim 1, characterized in that, Sending control commands corresponding to the fourth control requirement to the generator and the engine, including: The second demand level is determined based on the current vehicle speed and the current throttle opening value; The corresponding speed and torque values ​​are determined based on the second level of demand. Send a speed control command corresponding to the speed value to the generator; Send a torque control command corresponding to the torque value to the engine.

4. A range-extended electric vehicle power generation control device, characterized in that, include: The acquisition module is used to acquire the operating information of the range-extended electric vehicle, wherein the operating information includes: hybrid mode switch hard-wired signal, engine start switch hard-wired signal, power battery information, current vehicle speed, current throttle opening value and the duration of the current range-extended electric vehicle state; The first control module is configured to send a limiting command corresponding to the first control requirement to the generator and the engine if the operating information meets the first control requirement, so as to generate electricity using the first power output corresponding to the limiting command; wherein, the operating information meeting the first control requirement includes: the hybrid mode switch hardwire signal being valid; the power battery information conforming to normal charge and discharge state information; the current vehicle speed being less than a first vehicle speed limit; and the current throttle opening value being less than a first opening limit; The second control module is used to send a shutdown command to the engine if the operating information meets the second control requirements; wherein the operating information meets the second control requirements, including: the current vehicle speed is less than the second vehicle speed limit; and the current throttle opening value is less than the second opening limit; and the engine start switch hardwire signal is invalid; and the duration of the current range-extended electric vehicle state is greater than the first preset time. The third control module is used to send a start command to the engine if the operating information meets the third control requirements; wherein, the operating information meeting the third control requirements includes: the current vehicle speed is greater than the third vehicle speed limit or the current throttle opening value is greater than the third opening limit; and the duration of the current range-extended electric vehicle state is greater than the second preset time; The fourth control module is used to send a control command corresponding to the fourth control requirement to the generator and the engine if the operating information meets the fourth control requirement, so as to generate electricity using the second power output corresponding to the control command; wherein, the operating information meeting the fourth control requirement includes: the current vehicle speed is greater than the fourth vehicle speed limit; or the current throttle opening value is greater than the fourth opening limit.

5. An electronic device, characterized in that, Includes memory used to store computer programs; A processor, configured to execute the computer program to implement the steps of the range-extended electric vehicle power generation control method as described in any one of claims 1 to 3.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the range-extended electric vehicle power generation control method as described in any one of claims 1 to 3.

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