Parking regeneration control method, device, extended-range vehicle, and storage medium

Abstract

The present invention discloses a parking regeneration control method, device, extended-range vehicle, and storage medium. The parking regeneration control method is applied to an extended-range vehicle, which includes a range-extended system, which includes an engine, a generator, and a battery pack. The parking regeneration control method for the extended-range system includes: when the extended-range system has a parking regeneration requirement and a power generation requirement, obtaining the current engine exhaust temperature of the engine, the current battery state of charge (SOC) value of the battery pack, and the initial parking power generation requirement, and determining a generator set speed of the generator based on the current engine exhaust temperature and the initial parking power generation requirement; when the current battery SOC value is less than or equal to a set SOC threshold, determining a target parking power generation requirement of the extended-range system based on the initial parking power generation requirement and the generator set speed, and determining a set engine torque of the engine based on the target parking power generation requirement, so as to control the engine to complete parking regeneration based on the set engine torque.

Description

Technical Field

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

[0002] Parking regeneration (DPF regeneration) is a self-cleaning process of the particulate filter (DPF) in the exhaust system of a diesel vehicle. It restores the filtering capacity by burning accumulated carbon particulate matter (such as hydrocarbons, nitrogen oxides, etc.). When the particulate matter load inside the DPF reaches the set threshold (usually 80% of the volume), the vehicle control system can automatically or manually start regeneration.

[0003] Due to emission upgrade requirements, the engine of an extended-range vehicle may need to be regenerated during parking regeneration. At the same time, depending on the actual operating conditions of the vehicle, the extended-range system may also need to be charged during parking. These two situations have their own requirements for the engine. It is currently impossible to combine the two requirements to ensure the smooth completion of parking regeneration, as well as the stability and reliability of parking regeneration. Summary of the Invention

[0004] The present invention provides a parking regeneration control method, device, extended-range vehicle and storage medium to solve the current problem that parking regeneration control cannot be completed by combining the requirements of parking regeneration and parking charging at the same time.

[0005] According to one aspect of the present invention, a parking regeneration control method is provided. The parking regeneration control method is applied to an extended-range vehicle. The extended-range vehicle includes a range-extending system, which includes an engine, a generator, and a battery pack. The parking regeneration control method for the extended-range system includes:

[0006] When the range extender system has a parking regeneration requirement and a power generation requirement at the same time, the current engine exhaust temperature of the engine, the current battery SOC value of the battery pack, and the initial parking power generation requirement are obtained, and the generator set speed of the generator is determined according to the current engine exhaust temperature and the initial parking power generation requirement;

[0007] When the current battery SOC value is less than or equal to the set SOC threshold, the target parking power generation requirement of the range extender system is determined according to the initial parking power generation requirement and the set generator speed, and the engine set torque of the engine is determined according to the target parking power generation requirement to control the engine to complete parking regeneration based on the engine set torque.

[0008] Optionally, the generator set speed is determined based on the current engine exhaust temperature and the initial parking power generation requirement, including:

[0009] Determining a parking regeneration required speed based on the current engine exhaust temperature, and determining a parking power generation required speed based on the initial parking power generation required power;

[0010] The generator set speed is determined according to the parking regeneration required speed and the parking power generation required speed.

[0011] Optionally, the range-extended system parking regeneration control method further includes:

[0012] When the current battery SOC value is greater than the set SOC threshold, the target parking power generation requirement of the range extender system is determined according to the initial parking power generation requirement.

[0013] Optionally, before determining the target parking power requirement of the range extender system according to the initial parking power requirement and the generator set speed, the method further includes:

[0014] Determining a power generation adjustment coefficient based on a current battery SOC value and a speed difference determined between the generator set speed and a parking power generation demand speed;

[0015] The target parking power requirement of the range extender system is determined based on the initial parking power requirement and the generator set speed, including:

[0016] Determining a first parking power generation requirement according to the initial parking power generation requirement and the power generation adjustment coefficient, and determining a second parking power generation requirement according to the set generator speed;

[0017] The target parking power generation requirement of the range extender system is determined according to the first parking power generation requirement and the second parking power generation requirement.

[0018] Optionally, determining the second parking power requirement according to the set generator speed includes:

[0019] Determine the first power generation demand power by querying the first most economical power generation curve according to the set speed of the generator, and determine the second power generation demand power by querying the second most economical power generation curve according to the set speed of the generator;

[0020] The second parking power generation requirement is determined according to the first power generation requirement and the second power generation requirement.

[0021] Optionally, determining the first required power generation power by querying the first most economical power generation curve according to the set generator speed includes:

[0022] The smaller of the initial parking power demand and the power demand obtained by querying the first most economical power generation curve based on the set generator speed is determined as the first power demand.

[0023] Optionally, determining a set engine torque of the engine according to a target parking power generation requirement includes:

[0024] The target parking power generation requirement is multiplied by 9550 and then divided by the generator set speed to obtain the engine set torque.

[0025] According to another aspect of the present invention, a parking regeneration control device is provided. The parking regeneration control device is applied to an extended-range vehicle. The extended-range vehicle includes a range-extending system, which includes an engine, a generator, and a battery pack. The parking regeneration control device includes:

[0026] A generator set speed determination module is used to obtain the current engine exhaust temperature, the current battery SOC value of the battery pack, and the initial parking power generation requirement when the range extender system has a parking regeneration requirement and a power generation requirement, and determine the generator set speed according to the current engine exhaust temperature and the initial parking power generation requirement;

[0027] The parking regeneration control module is used to determine the target parking power generation requirement of the range extender system based on the initial parking power generation requirement and the set generator speed when the current battery SOC value is less than or equal to the set SOC threshold, and determine the engine set torque of the engine based on the target parking power generation requirement to control the engine to complete parking regeneration based on the engine set torque.

[0028] According to another aspect of the present invention, there is provided an extended-range vehicle, the extended-range vehicle comprising:

[0029] at least one processor; and,

[0030] a memory communicatively connected to at least one processor; wherein,

[0031] The memory stores a computer program that can be executed by at least one processor. The computer program is executed by the at least one processor so that the at least one processor can execute the parking regeneration control method according to any embodiment of the present invention.

[0032] According to another aspect of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium stores computer instructions, which are used to enable a processor to implement the parking regeneration control method according to any embodiment of the present invention when executed.

[0033] The technical solution of an embodiment of the present invention is a parking regeneration control method applied to a range-extended vehicle (REV). The REV includes a REV system, which includes an engine, a generator, and a battery pack. The parking regeneration control method for the REV system is a range-extended vehicle control method that combines parking regeneration and parking power generation. Specifically, when the REV system has both parking regeneration and power generation requirements, the current engine exhaust temperature, the current battery state of charge (SOC) value of the battery pack, and the initial parking power generation requirement are obtained. The generator speed setting is determined based on the current engine exhaust temperature and the initial parking power generation requirement. When the current battery SOC value is less than or equal to a set SOC threshold, the target parking power generation requirement of the REV system is determined based on the initial parking power generation requirement and the generator speed setting. This reduces the energy consumed by parking regeneration while meeting the power generation requirements of the vehicle's actual operating conditions and maximizing the range-extended system's operation on the most economical curve. Furthermore, the engine torque setting is determined based on the target parking power generation requirement to control the engine to complete parking regeneration based on the engine torque setting, thereby achieving efficient parking regeneration control for the REV.

[0034] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 is a flow chart of a parking regeneration control method provided according to an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the principle of determining the set engine speed according to an embodiment of the present invention;

[0038] Figure 3 is an architectural diagram of a parking regeneration control method provided according to an embodiment of the present invention;

[0039] Figure 4 is an architectural diagram of a parking regeneration control method provided according to an embodiment of the present invention;

[0040] Figure 5 is an architectural diagram of a parking regeneration control method provided according to an embodiment of the present invention;

[0041] Figure 6 2 is a schematic structural diagram of a parking regeneration control device provided according to an embodiment of the present invention;

[0042] Figure 7 It is a schematic structural diagram of an extended-range vehicle that implements the parking regeneration control method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0044] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0045] Figure 1 A flowchart of a parking regeneration control method is provided for an embodiment of the present invention. This embodiment is applicable to situations where, due to emission upgrade requirements, the engine requires parking regeneration and the range extender system requires parking charging for parking regeneration control. The parking regeneration control method can be executed by a parking regeneration control device, which can be implemented in the form of hardware and / or software. The parking regeneration control device can be configured in an extended-range new energy vehicle such as an extended-range electric vehicle or an extended-range hybrid vehicle.

[0046] The parking regeneration control method provided by the embodiment of the present invention is applied to an extended-range vehicle, which includes an extended-range system, which includes an engine, a generator and a battery pack. Figure 1 As shown, the parking regeneration control method includes:

[0047] S110: When the range extender system has a parking regeneration requirement and a power generation requirement at the same time, the current engine exhaust temperature of the engine, the current battery SOC value of the battery pack, and the initial parking power generation requirement are obtained, and a generator set speed of the generator is determined according to the current engine exhaust temperature and the initial parking power generation requirement.

[0048] When only the range extender system requires parking regeneration, the engine follows the traditional regeneration control method. The engine adopts speed control and the motor adopts torque control. The range extender controller RCU (Rxtender Control Unit) controls the engine controller ECU (Engine Control Unit) to operate according to the regeneration required speed. At this time, the power generation torque of the motor controller MCU (Motor Control Unit) is set to 0.

[0049] In this embodiment, when the range extender system has a parking regeneration requirement, it receives a power generation requirement from the vehicle control unit (VCU). In order to ensure the simultaneous coordination of regeneration and power generation, the engine adopts torque control and the motor adopts speed control, thereby achieving parking regeneration control. Specifically, in order to ensure the engine parking regeneration requirement, the engine speed should be as high as possible, see Figure 2 As shown, the generator set speed at this time is the larger value of the parking regeneration requirement speed and the parking power generation requirement speed, wherein the parking regeneration requirement speed can be determined according to the current engine exhaust temperature, and the parking power generation requirement speed can be determined according to the initial parking power generation requirement power.

[0050] The current engine exhaust temperature of the engine is measured in real time by the engine controller ECU when the range extender system has a parking regeneration requirement, or can be measured in real time by an exhaust temperature sensor, which is not limited in this embodiment.

[0051] The current battery SOC value of the battery pack is measured by a measuring device when receiving a power generation demand from a vehicle control unit (VCU). It can also be indirectly estimated using other parameters, which is not limited in this embodiment.

[0052] The initial parking power generation requirement is the current power requirement determined based on the power generation requirement of the vehicle controller VCU, which can be determined by the vehicle controller VCU according to the power generation requirement.

[0053] Continue to see Figure 2As shown, the parking regeneration demand speed is obtained by querying the exhaust temperature speed curve according to the current engine exhaust temperature, and the parking power generation demand speed is obtained by querying the power speed most economical power generation curve according to the initial parking power generation demand power. Further, the larger value of the parking regeneration demand speed and the parking power generation demand speed is selected as the generator set speed of the generator.

[0054] It can be seen that both the exhaust temperature and speed curves and the most economical power generation curves of power and speed can be obtained by pre-calibration according to the parking regeneration control requirements, and this embodiment does not impose any limitation on this.

[0055] S120: When the current battery SOC value is less than or equal to a set SOC threshold, determine a target parking power generation requirement of the range extender system based on the initial parking power generation requirement and the set generator speed, and determine a set engine torque of the engine based on the target parking power generation requirement to control the engine to complete parking regeneration based on the set engine torque.

[0056] In order to ensure that the range extender system operates in a more economical area, the initial parking power demand should be appropriately adjusted when determining the target parking power demand. Figure 3 As shown, when the current battery SOC value is high, that is, when the current battery SOC value is greater than the set SOC threshold, in order to prevent the battery pack from overcharging, the economic requirement is abandoned at this time, and power generation is strictly in accordance with the initial parking power generation demand power. That is, the target parking power generation demand power of the range extender system is determined according to the initial parking power generation demand power, and then the target parking power generation demand power is multiplied by 9550 and divided by the set generator speed to obtain the engine set torque.

[0057] The SOC threshold value may be set by pre-calibration according to the parking regeneration control requirement, and this embodiment does not impose any limitation on this.

[0058] In this embodiment, when the current battery SOC value is relatively low, that is, when the current battery SOC value is less than or equal to the set SOC threshold, the initial parking power generation demand power is adjusted by comprehensively considering the current battery SOC value and the speed difference between the set generator speed and the parking power generation demand speed, and is kept on the most economical power generation curve as much as possible.

[0059] See also Figure 4As shown, before determining the target parking power generation requirement of the range extender system based on the initial parking power generation requirement and the set generator speed, the SOC-speed difference curve is queried based on the speed difference determined between the current battery SOC value and the set generator speed and the parking power generation requirement speed to determine the power generation adjustment coefficient. Specifically, the speed difference of the parking power generation requirement speed is 1 when it is less than or equal to 0, and is greater than 1 when the speed difference is greater than 0. The greater the speed difference, the greater the power generation adjustment coefficient. The smaller the current battery SOC value, the greater the power generation adjustment coefficient. When the SOC value approaches the set SOC threshold, the power generation adjustment coefficient is 1. After that, the initial parking power generation requirement is adjusted based on the power generation adjustment coefficient, and then the engine set torque of the engine is determined.

[0060] It can be seen that the SOC-speed difference curve can be obtained by pre-calibration according to the parking regeneration control requirements, and this embodiment does not impose any limitation on this.

[0061] On the basis of the above, continue to see Figure 4 As shown, when the current battery SOC value is less than or equal to the set SOC threshold, the first parking power generation demand is obtained by multiplying the initial parking power generation demand by the power generation adjustment coefficient, and the second parking power generation demand is determined by querying the most economical power generation curve according to the set generator speed, and the smaller of the first and second parking power generation demand is determined as the target parking power generation demand of the range extender system.

[0062] It is known that the determination of the most economical power generation curve needs to be combined with the engine universal characteristic curve (BSFC) and the hybrid system control strategy. This embodiment does not impose any restrictions on the most economical power generation curve involved.

[0063] In another embodiment, considering that the most economical power generation curve of the range extender system may have multiple power generation demand powers corresponding to the same power generation demand speed, when the power generation demand power is reversed according to the power generation demand speed, the index array may be non-monotonic. In this case, the calculation of the most economical power generation curve of speed power can be adjusted, specifically: See Figure 5 As shown, when the current battery SOC value is less than or equal to the set SOC threshold, the first parking power generation demand is determined according to the initial parking power generation demand and the power generation adjustment coefficient, and the first power generation demand is determined according to the power generation demand obtained by querying the first most economical power generation curve based on the set generator speed, and the second power generation demand is determined according to the power generation demand obtained by querying the second most economical power generation curve based on the set generator speed. Further, the larger of the first power generation demand and the second power generation demand is determined as the second parking power generation demand.

[0064] For example, the first most economical power generation curve can be the most economical power generation curve with the maximum speed and power, and the second most economical power generation curve can be the most economical power generation curve with the minimum speed and power. Both the first most economical power generation curve and the second most economical power generation curve can be obtained by calibrating the corresponding power at each speed. It can be seen that if there is only one most economical power generation point corresponding to a certain speed, then the most economical power generation point with the maximum power and the most economical power generation point with the minimum power corresponding to the current speed are the same.

[0065] Among them, continue to see Figure 5 As shown, the smaller of the initial parking power demand and the power demand obtained by querying the first most economical power generation curve based on the set generator speed is determined as the first power demand.

[0066] Continue to see Figure 5 As shown, on the basis of the above, the smaller of the first parking power generation requirement and the second parking power generation requirement is determined as the target parking power generation requirement of the range extender system. Furthermore, the target parking power generation requirement is multiplied by 9550 and then divided by the set generator speed to obtain the set engine torque of the engine.

[0067] The technical solution of an embodiment of the present invention is a parking regeneration control method applied to a range-extended vehicle. The range-extended vehicle includes a range-extended system, which includes an engine, a generator, and a battery pack. The parking regeneration control method of the range-extended system includes: when the range-extended system has a parking regeneration requirement and a power generation requirement, obtaining the current engine exhaust temperature of the engine, the current battery SOC value of the battery pack, and the initial parking power generation requirement, and determining the generator set speed of the generator based on the current engine exhaust temperature and the initial parking power generation requirement; when the current battery SOC value is less than or equal to a set SOC threshold, determining the target parking power generation requirement of the range-extended system based on the initial parking power generation requirement and the generator set speed, and determining the engine set torque based on the target parking power generation requirement to control the engine to complete parking regeneration based on the engine set torque. The embodiment of the present invention solves the current problem of being unable to simultaneously combine parking regeneration and parking charging requirements to complete parking regeneration control, and realizes efficient parking regeneration control that combines parking regeneration and parking power generation, ensuring that the range-extended vehicle achieves optimal emission performance.

[0068] Based on the same inventive concept, Figure 6 This is a schematic diagram of the structure of a parking regeneration control device provided by an embodiment of the present invention. The parking regeneration control device is applied to an extended-range vehicle, which includes an extended-range system, which includes an engine, a generator and a battery pack. Figure 6 As shown, the parking regeneration control device includes:

[0069] The generator set speed determination module 210 is configured to obtain the current engine exhaust temperature, the current battery SOC value of the battery pack, and the initial parking power generation requirement when the range extender system has a parking regeneration requirement and a power generation requirement, and determine the generator set speed based on the current engine exhaust temperature and the initial parking power generation requirement;

[0070] The parking regeneration control module 220 is used to determine the target parking power generation requirement of the range extender system based on the initial parking power generation requirement and the set generator speed when the current battery SOC value is less than or equal to the set SOC threshold, and determine the engine set torque of the engine based on the target parking power generation requirement to control the engine to complete parking regeneration based on the engine set torque.

[0071] Optionally, the generator set speed is determined based on the current engine exhaust temperature and the initial parking power generation requirement, specifically for:

[0072] Determining a parking regeneration required speed based on the current engine exhaust temperature, and determining a parking power generation required speed based on the initial parking power generation required power;

[0073] The generator set speed is determined according to the parking regeneration required speed and the parking power generation required speed.

[0074] Optionally, the range-extended system parking regeneration control device also includes:

[0075] The target parking power generation requirement determination module is used to determine the target parking power generation requirement of the range extender system according to the initial parking power generation requirement when the current battery SOC value is greater than the set SOC threshold.

[0076] Optionally, the range-extended system parking regeneration control device also includes:

[0077] a power generation adjustment coefficient determination module, configured to determine the power generation adjustment coefficient based on a speed difference determined between a current battery SOC value and the generator set speed and a parking power generation requirement speed;

[0078] The target parking power requirement of the range extender system is determined based on the initial parking power requirement and the generator set speed, specifically for:

[0079] Determining a first parking power generation requirement according to the initial parking power generation requirement and the power generation adjustment coefficient, and determining a second parking power generation requirement according to the set generator speed;

[0080] The target parking power generation requirement of the range extender system is determined according to the first parking power generation requirement and the second parking power generation requirement.

[0081] Optionally, the second parking power generation requirement is determined according to the set generator speed, specifically for:

[0082] Determine the first power generation demand power by querying the first most economical power generation curve according to the set speed of the generator, and determine the second power generation demand power by querying the second most economical power generation curve according to the set speed of the generator;

[0083] The second parking power generation requirement is determined according to the first power generation requirement and the second power generation requirement.

[0084] Optionally, the first power generation demand power is determined by querying the first most economical power generation curve according to the set generator speed, specifically for:

[0085] The smaller of the initial parking power demand and the power demand obtained by querying the first most economical power generation curve based on the set generator speed is determined as the first power demand.

[0086] Optionally, the engine set torque is determined according to the target parking power generation requirement, specifically for:

[0087] The target parking power generation requirement is multiplied by 9550 and then divided by the generator set speed to obtain the engine set torque.

[0088] The parking regeneration control device provided in the embodiment of the present invention can execute the parking regeneration control method provided in any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the parking regeneration control method.

[0089] Based on the same inventive concept, Figure 7 FIG. 3 shows a schematic structural diagram of an extended-range vehicle 310 that can be used to implement an embodiment of the present invention. Figure 7 As shown, an extended-range vehicle 310 includes at least one processor 311 and memory, such as a read-only memory (ROM) 312 and a random-access memory (RAM) 313, communicatively connected to the at least one processor 311. The memory stores computer programs executable by the at least one processor. Processor 311 can perform various appropriate actions and processes based on the computer programs stored in the read-only memory (ROM) 312 or loaded from storage unit 318 into the random-access memory (RAM) 313. RAM 313 can also store various programs and data required for the operation of extended-range vehicle 310. Processor 311, ROM 312, and RAM 313 are interconnected via a bus 314. An I / O (input / output) interface 315 is also connected to bus 314.

[0090] Multiple components in the extended-range vehicle 310 are connected to the I / O interface 315, including an input unit 316, such as a keyboard and mouse; an output unit 317, such as various types of displays and speakers; a storage unit 318, such as a magnetic disk and optical disk; and a communication unit 319, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 319 allows the extended-range vehicle 310 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0091] Processor 311 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of processor 311 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any other suitable processor, controller, microcontroller, etc. Processor 311 executes the various methods and processes described above, such as the parking regeneration control method.

[0092] In some embodiments, the parking regeneration control method can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 318. In some embodiments, part or all of the computer program can be loaded and / or installed on the extended-range vehicle 310 via ROM 312 and / or communication unit 319. When the computer program is loaded into RAM 313 and executed by processor 311, one or more steps of the parking regeneration control method described above can be performed. Alternatively, in other embodiments, processor 311 can be configured to execute the parking regeneration control method in any other suitable manner (e.g., via firmware).

[0093] Various embodiments of the systems and techniques described above can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0094] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0095] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device, or apparatus. A computer-readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or apparatus, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media may include an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0096] To provide user interaction, the systems and techniques described herein can be implemented in an extended-range vehicle (ERV) that includes: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the ERV. Other types of devices can also be used to provide user interaction; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic input, voice input, or tactile input.

[0097] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0098] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0099] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0100] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A parking regeneration control method, wherein the parking regeneration control method is applied to an extended-range vehicle, wherein the extended-range vehicle includes a range-extending system, wherein the range-extending system includes an engine, a generator, and a battery pack, and wherein: The range-extended system parking regeneration control method includes: When the range extender system has a parking regeneration requirement and simultaneously requires parking charging and power generation for parking regeneration, obtaining a current engine exhaust temperature of the engine, a current battery SOC value of the battery pack, and an initial parking power generation requirement, and determining a generator set speed of the generator based on the current engine exhaust temperature and the initial parking power generation requirement; When the current battery SOC value is less than or equal to a set SOC threshold, determining a target parking power generation requirement of the range extender system according to the initial parking power generation requirement and the set generator speed, and determining a set engine torque of the engine according to the target parking power generation requirement, so as to control the engine to complete parking regeneration based on the set engine torque; Before determining the target parking power generation requirement of the range extender system based on the initial parking power generation requirement and the generator set speed, the method further includes: determining a power generation adjustment coefficient based on a speed difference determined between a current battery SOC value and the generator set speed and the parking power generation requirement speed; determining the target parking power generation requirement of the range extender system based on the initial parking power generation requirement and the generator set speed, including: determining a first parking power generation requirement based on the initial parking power generation requirement and the power generation adjustment coefficient, and determining a second parking power generation requirement based on the generator set speed; and determining the target parking power generation requirement of the range extender system based on the first parking power generation requirement and the second parking power generation requirement. Among them, determining the second parking power generation demand according to the set speed of the generator includes: determining the first power generation demand by querying the first most economical power generation curve according to the set speed of the generator, and determining the second power generation demand by querying the second most economical power generation curve according to the set speed of the generator; and determining the larger of the first power generation demand and the second power generation demand as the second parking power generation demand.

2. The parking regeneration control method according to claim 1, characterized in that: Determining a set generator speed of the generator according to the current engine exhaust temperature and the initial parking power generation requirement includes: determining a parking regeneration required speed according to the current engine exhaust temperature, and determining a parking power generation required speed according to the initial parking power generation required power; A generator set speed of the generator is determined according to the parking regeneration required speed and the parking power generation required speed.

3. The parking regeneration control method according to claim 1, characterized in that: The range-extended system parking regeneration control method further includes: When the current battery SOC value is greater than a set SOC threshold, the target parking power generation requirement of the range extender system is determined according to the initial parking power generation requirement.

4. The parking regeneration control method according to claim 1, characterized in that: Determining a first power generation demand power obtained by querying a first most economical power generation curve according to the set generator speed includes: The smaller of the initial parking power demand and the power demand obtained by querying the first most economical power generation curve based on the set generator speed is determined as the first power demand.

5. The parking regeneration control method according to claim 1, characterized in that: Determining a set engine torque of the engine according to the target parking power generation requirement includes: The target parking power generation requirement is multiplied by 9550 and then divided by the set speed of the generator to obtain the set engine torque of the engine.

6. A parking regeneration control device, the parking regeneration control device is applied to an extended-range vehicle, the extended-range vehicle includes an extended-range system, the extended-range system includes an engine, a generator and a battery pack, characterized in that: The parking regeneration control device includes: a generator set speed determination module, configured to obtain a current engine exhaust temperature of the engine, a current battery SOC value of the battery pack, and an initial parking power generation requirement when the range extender system has a parking regeneration requirement and simultaneously requires parking charging and power generation for parking regeneration, and determine a generator set speed of the generator based on the current engine exhaust temperature and the initial parking power generation requirement; a parking regeneration control module, configured to determine, when the current battery SOC value is less than or equal to a set SOC threshold, a target parking power generation requirement of the range extender system based on the initial parking power generation requirement and the set generator speed, and determine a set engine torque of the engine based on the target parking power generation requirement, so as to control the engine to complete parking regeneration based on the set engine torque; a power generation adjustment coefficient determination module, configured to determine the power generation adjustment coefficient based on a speed difference determined between a current battery SOC value and the generator set speed and a parking power generation requirement speed; determining a target parking power generation requirement of the range extender system based on the initial parking power generation requirement and the set generator speed, specifically for: determining a first parking power generation requirement based on the initial parking power generation requirement and the power generation adjustment coefficient, and determining a second parking power generation requirement based on the set generator speed; and determining the target parking power generation requirement of the range extender system based on the first parking power generation requirement and the second parking power generation requirement; Among them, the second parking power generation demand is determined according to the set speed of the generator, which is specifically used to: determine the first power generation demand by querying the first most economical power generation curve according to the set speed of the generator, and determine the second power generation demand by querying the second most economical power generation curve according to the set speed of the generator; and determine the larger of the first power generation demand and the second power generation demand as the second parking power generation demand.

7. An extended-range vehicle, characterized in that: The extended-range vehicle includes: at least one processor; and, a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor. The computer program is executed by the at least one processor so as to enable the at least one processor to perform the parking regeneration control method according to any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the parking regeneration control method according to any one of claims 1 to 5 when executed.

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