Starting control method and system of range extender, electronic equipment, medium and product
By detecting and adjusting the temperature and pressure of the lubricating oil before starting the range extender, the problem of range extender start-up failure caused by untimely lubricating oil supply was solved, and reliable lubrication and normal start-up of the range extender were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-03-13
AI Technical Summary
During the start-up phase, if the lubricating oil supply is not timely, the internal components of the range extender will dry-friction, causing serious failures such as abnormal wear, cylinder scoring, or even bearing seizure. The risk is exacerbated, especially in low-temperature environments.
By setting temperature and pressure thresholds before startup, the initial state of the lubricating oil is detected using temperature and pressure sensing modules. The temperature and pressure of the lubricating oil are then regulated by a heating module and an electronic oil pump to achieve the target state, ensuring that the lubricating oil has good fluidity and pressure during startup.
It effectively reduces the viscosity of the lubricating oil, improves its fluidity and pressure, avoids dry friction of internal components of the range extender, and reduces abnormal wear and the risk of failure.
Smart Images
Figure CN121654516A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle technology, and in particular to a method, system, electronic device, medium, and product for starting control of a range extender. Background Technology
[0002] As the global automotive industry shifts towards electrification and low-carbon development, range-extended electric vehicles (REEVs), as a technological approach that balances driving range and charging convenience, are gaining increasing favor among automakers. REEVs use a combustion engine to drive a generator to produce electricity, which in turn powers an electric motor. This avoids the range anxiety associated with pure electric vehicles while retaining the high efficiency and quiet operation of electric drive.
[0003] However, in practical applications, lubrication during the start-up phase of the range extender remains a key bottleneck affecting system reliability and user experience. Because range extenders typically employ a high-speed, small-displacement dedicated engine design, their internal friction pairs (such as crankshaft main bearings, connecting rod bearings, camshafts, etc.) are extremely sensitive to the timeliness and stability of lubricant supply. If sufficient oil film pressure is not established at the moment of start-up, dry friction can easily occur, leading to abnormal wear, cylinder scoring, or even serious failures such as bearing seizure.
[0004] Existing lubrication strategies largely rely on passively establishing oil pressure after startup, lacking proactive intervention in the lubrication state before startup. Especially in low-temperature environments (such as below -15°C), lubricating oil viscosity increases significantly, and fluidity decreases drastically, prolonging the oil pressure build-up time and further exacerbating lubrication risks during startup. Actual test data shows that in a -10°C environment, the time required for lubricating oil pressure to reach the safe threshold under traditional startup strategies exceeds 8 seconds. During this period, the engine has already undergone multiple high-load ignition and compression processes, significantly increasing the probability of mechanical damage. Summary of the Invention
[0005] This application provides a method, system, electronic device, medium, and product for starting a range extender, in order to solve the problem that the range extender cannot be effectively lubricated when starting, which leads to dry friction of internal components, resulting in abnormal wear, cylinder scoring, or even shaft seizure and other serious malfunctions.
[0006] In a first aspect, embodiments of this application provide a start-up control method for a range extender, including: Receive a start command and acquire the initial temperature of the lubricating oil in the lubrication circuit of the range extender; the start command includes a preset temperature threshold. In response to the initial temperature of the lubricating oil being lower than the temperature threshold, the lubricating oil is heated to raise its temperature to a target temperature; wherein the difference between the target temperature and the temperature threshold is less than a first threshold. Obtain a preset pressure threshold and acquire the first pressure of the lubricating oil after it has been heated. The range extender is activated in response to the first pressure being less than the pressure threshold.
[0007] In one embodiment, heating the lubricating oil includes: The lubricating oil is heated by a heating module, and / or the electronic oil pump is operated at a first speed for a preset time; the electronic oil pump provides circulation power for the lubricating oil.
[0008] In one embodiment, the difference between the first rotational speed and the peak rotational speed of the electronic oil pump is less than a second threshold.
[0009] In one embodiment, heating the lubricating oil to raise its temperature to a target temperature includes: The lubricating oil is heated, and the first temperature of the lubricating oil is collected at preset time intervals until the first temperature is greater than or equal to the target temperature.
[0010] In one embodiment, after obtaining a preset pressure threshold and acquiring the first pressure of the lubricating oil after heating, the process includes: In response to the first pressure being greater than or equal to the pressure threshold, the electronic oil pump is operated at a second speed for a preset time; wherein the second speed is a speed that matches the real-time operating conditions of the vehicle, and the second speed is less than the first speed; The second temperature of the lubricating oil at the second rotational speed of the electronic oil pump is acquired, and the second pressure of the lubricating oil at the second rotational speed of the electronic oil pump is acquired. The range extender is activated in response to the second temperature being greater than or equal to the temperature threshold and the second pressure being less than the pressure threshold.
[0011] In one embodiment, the temperature threshold is -10℃ to 10℃; the pressure threshold is 130Kpa to 190Kpa.
[0012] Secondly, embodiments of this application also provide a start-up control system for a range extender, comprising: The range extender has an internal lubrication circuit for the flow of lubricating oil; A temperature sensing module is installed in the lubrication circuit to collect the temperature information of the lubricating oil; A pressure sensing module is used to collect the pressure information of the lubricating oil; The controller is used to set temperature thresholds and pressure thresholds, and to acquire temperature information and pressure information. Based on the temperature information and the temperature thresholds, and the pressure information and the pressure thresholds, it determines whether to start the range extender.
[0013] Thirdly, embodiments of this application also provide an electronic device, including a memory, a processor, and a computer program stored in the memory and used to run on the processor, characterized in that the processor implements the startup control method described in any of the above claims when executing the computer program.
[0014] Fourthly, embodiments of this application also provide a computer-readable storage medium having program instructions stored thereon, which, when executed by a processor, implement the startup control method described in any of the preceding claims.
[0015] Fifthly, embodiments of this application also provide a computer program product, including a computer program that, when executed by a processor, implements the startup control method as described in any of the preceding claims.
[0016] The range extender start-up control method provided in this application sets a temperature threshold and acquires the initial temperature via EMS before starting the range extender. It then determines whether the initial temperature of the lubricating oil is lower than the temperature threshold. If the initial temperature is lower than the threshold, the lubricating oil is heated to raise its temperature to the target temperature. This allows for the detection and heating of the lubricating oil temperature when the initial temperature does not meet lubrication requirements, effectively reducing the viscosity and improving the fluidity of the lubricating oil. Simultaneously, the start-up control method also acquires a preset pressure threshold and a first pressure Pa1 via EMS. It determines whether the lubricating oil simultaneously meets the conditions of a first temperature T1 greater than or equal to the temperature threshold and a first pressure Pa1 less than the pressure threshold. Compared to simply judging temperature or pressure, this dual detection and judgment method further improves the accuracy of lubricating oil detection and judgment before range extender start-up. This solves the problem of ineffective lubrication of the range extender during start-up, which can lead to dry friction of internal components, abnormal wear, cylinder scoring, or even shaft seizure. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.
[0018] Figure 1 This is a flowchart illustrating the start-up control method for a range extender provided in an embodiment of this application.
[0019] Figure 2 This is a flowchart illustrating a start-up control method for a range extender provided in another embodiment of this application.
[0020] Figure 3 This is a structural block diagram of the start-up control system for a range extender provided in an embodiment of this application.
[0021] Figure 4 This is an internal structural diagram of an electronic device provided in an embodiment of this application. Detailed Implementation
[0022] 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 a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0023] This application provides a method for starting up a range extender. Please refer to [link / reference]. Figure 1 The startup control method provided in this embodiment includes: S101: Receive the start command and acquire the initial temperature T0 of the lubricating oil in the lubrication circuit of the range extender.
[0024] Specifically, the start command includes a working command instructing the range extender to switch to operating mode. When the vehicle receives the start command to activate the range extender (i.e., when the vehicle needs to activate the range extender under specific operating conditions, or when the driver actively activates the range extender), the initial temperature T0 of the lubricating oil in the range extender's lubrication circuit is collected via a temperature sensing module, and information about this initial temperature T0 is obtained. Simultaneously, the start command also includes a temperature threshold. In this embodiment, by setting the temperature threshold and collecting the initial temperature T0, it is possible to determine whether heating of the lubricating oil is necessary.
[0025] It is understood that this embodiment can set the temperature threshold and obtain the initial temperature T0 through the EMS (Engine Management System); wherein, the temperature threshold can be -10℃ to 10℃ (the temperature under the optimal operating condition of the lubricating oil), and is not limited here.
[0026] S102: Determine whether the initial temperature of the lubricating oil is less than the temperature threshold.
[0027] Understandably, when the lubricating oil temperature is too low, the viscosity of the lubricating oil increases significantly, and its fluidity decreases drastically. This results in the lubricating oil failing to effectively lubricate the range extender in the initial startup phase, leading to dry friction of internal components and causing serious malfunctions such as abnormal wear, cylinder scoring, or even shaft seizure. Therefore, this embodiment can detect whether the lubricating oil in the lubrication circuit has high viscosity and poor fluidity before starting the range extender by judging whether the initial temperature T0 is lower than a temperature threshold. This avoids the problem of insufficient lubrication of the range extender due to an excessively low initial lubricating oil temperature T0.
[0028] Furthermore, when the initial temperature T0 is less than the temperature threshold, step S103 is executed (heating the lubricating oil to raise its temperature to the target temperature). At this time, heating the lubricating oil can effectively reduce its viscosity and improve its fluidity.
[0029] In this embodiment, the difference between the target temperature and the temperature threshold can be limited to be less than a first threshold, meaning that it is not necessary to heat the initial temperature T0 to the temperature threshold. Specifically, as the lubricating oil is heated from the initial temperature T0 to the target temperature, the viscosity of the lubricating oil gradually decreases, and the fluidity of the lubricating oil gradually increases. At this time, it may be possible to meet the lubrication requirements by heating the lubricating oil to near the temperature threshold. In this case, it is not necessary to heat the lubricating oil to the temperature threshold, thereby shortening the heating time and improving the efficiency of the start-up control method. Therefore, a first threshold is allowed between the target temperature and the temperature threshold, and the difference between the target temperature and the temperature threshold is limited to be less than the first threshold.
[0030] S104: Obtain the preset pressure threshold and the first pressure Pa1 of the lubricating oil after heating.
[0031] It is understandable that when the pressure of the lubricating oil in the lubrication circuit is too high, it will cause the sealing system to fail and oil leakage to occur, thus failing to lubricate the range extender effectively in a timely manner. Therefore, this embodiment also needs to determine whether the pressure of the lubricating oil in the lubrication circuit is within the normal range.
[0032] Specifically, in this embodiment, after the lubricating oil is heated from the initial temperature T0 to the target temperature, it is also necessary to collect the first pressure Pa1 of the lubricating oil in the lubrication circuit of the range extender through the pressure sensing module, and set the pressure threshold and obtain the collected first pressure Pa1 through EMS; wherein, the pressure threshold can be 130Kpa-190Kpa (the pressure of the lubricating oil under the best working condition), and is not limited here.
[0033] S105: Determine whether the first pressure Pa1 is less than the pressure threshold.
[0034] Specifically, when the lubricating oil simultaneously reaches the first temperature and the first pressure Pa1 is less than the pressure threshold, it indicates that the viscosity and fluidity of the lubricating oil have returned to normal levels, and the lubricating oil will not cause the sealing system to fail or leak. At this time, step S106 (starting the range extender) can be executed so that the range extender can be effectively lubricated at the beginning of startup.
[0035] The range extender start-up control method provided in this embodiment sets a temperature threshold and acquires an initial temperature T0 via EMS before starting the range extender. It then determines whether the initial temperature T0 of the lubricating oil is lower than the temperature threshold. If the initial temperature T0 is lower than the temperature threshold, the lubricating oil is heated to raise its temperature to the target temperature. This allows for the detection and heating of the lubricating oil temperature when the initial temperature T0 does not meet lubrication requirements, effectively reducing the viscosity and improving the fluidity of the lubricating oil. Simultaneously, the start-up control method also sets a pressure threshold and acquires a first pressure Pa1 via EMS. It determines whether the lubricating oil simultaneously meets the requirements of raising its temperature to the target temperature and whether the first pressure Pa1 is lower than the pressure threshold. This dual detection and judgment method further improves the accuracy of lubricating oil detection and judgment before range extender start-up, thus solving the problem of ineffective lubrication of the range extender during start-up, which can lead to dry friction of internal components, abnormal wear, cylinder scoring, or even bearing seizure.
[0036] In another embodiment, such as Figure 2 As shown, the startup control method includes: S201: Receive the start command and acquire the initial temperature T0 of the lubricating oil in the lubrication circuit of the range extender.
[0037] Specifically, the start-up commands include working commands that instruct the range extender to switch to running status.
[0038] S202: Determine whether the initial temperature T0 of the lubricating oil is less than the temperature threshold.
[0039] It should be noted that steps S201 and S202 are the same as steps S101 and S102. They all involve determining whether the initial temperature T0 is less than the temperature threshold, so that the lubricating oil in the lubrication circuit can be detected to have high viscosity and poor fluidity before starting the range extender. This avoids the problem of the lubricating oil's initial temperature T0 being too low, which would prevent the range extender from being effectively lubricated in time. This will not be elaborated on here.
[0040] S203: Heating the lubricating oil through the heating module, and / or running the electronic oil pump at a first speed for a preset time, and acquiring the first temperature T1 of the lubricating oil after heating.
[0041] Specifically, when the initial temperature T0 is less than the temperature threshold, the lubricating oil is heated by the heating module. At the same time, the electronic oil pump can be run at the first speed for a preset time, thereby cooperating with the heating module to quickly raise the temperature of the lubricating oil to the first temperature T1, so as to improve the efficiency of heating the lubricating oil. At the same time, by running the electronic oil pump at the first speed for a preset time, the lubricating oil can also be made to flow back and forth in the lubrication circuit during the heating process of the heating module, so that the lubricating oil can be heated evenly by the heating module.
[0042] Understandably, traditional range extender systems generally use a mechanical oil pump as the lubrication power source. This mechanical pump works directly connected to the engine, meaning that the mechanical oil pump cannot be started before the engine is started. This embodiment uses an independently set electronic oil pump, which can provide circulating power to the lubricating oil even when the engine is not started, so as to lubricate the range extender in a timely manner.
[0043] It should be noted that after the electronic oil pump runs at the first speed for a preset time, the lubricating oil in the lubrication circuit meets the minimum pressure requirement. The preset time mentioned here can be selected from 1ms to 100ms, and the first speed can be 3000rpm to 3700rpm, which is not limited here. At the same time, in other embodiments, the first speed can be the peak speed of the electronic oil pump, thereby increasing the speed of the electronic oil pump to further enhance the heating efficiency of the lubricating oil and thus save the start-up time of the range extender. In addition, the difference between the first speed and the peak speed of the electronic oil pump can be less than the second threshold, that is, the deviation between the first speed and the peak speed is allowed, so as to enhance the heating efficiency of the lubricating oil while reducing the speed increase time of the electronic oil pump, thereby further saving the start-up time of the range extender.
[0044] S204: Obtain the preset pressure threshold and the first pressure of the lubricating oil after heating.
[0045] The specific operation is the same as S104, and will not be repeated here.
[0046] S205: Determine whether the first temperature T1 is greater than or equal to the temperature threshold and whether the first pressure Pa1 is less than the pressure threshold.
[0047] Specifically, when the lubricating oil simultaneously meets the conditions that the first temperature T1 is greater than or equal to the temperature threshold (i.e., the lubricating oil temperature rises to the target temperature) and the first pressure Pa1 is less than the pressure threshold, step S206 (starting the range extender) can be executed so that the range extender can be effectively lubricated in the initial stage of startup.
[0048] Furthermore, when the judgment result is S207 (first temperature T1 is greater than or equal to the temperature threshold, first pressure Pa1 is greater than or equal to the pressure threshold), it indicates that the pressure of the lubricating oil in the lubrication circuit is too high, which will cause the sealing system to fail and oil leakage to occur, thus failing to effectively lubricate the range extender in time. At this time, step S208 can be executed to make the electronic oil pump run at the second speed for a preset time (the second speed is lower than the first speed) to reduce the pressure of the lubricating oil in the lubrication circuit by reducing the speed.
[0049] Simultaneously, after the electronic water pump is running at the second speed, step S209 is executed (acquiring the collected second temperature T2 of the lubricating oil at the second speed and the collected second pressure Pa2 of the lubricating oil at the second speed); and step S210 is executed (determining whether the second temperature T2 is greater than or equal to the temperature threshold and whether the second pressure Pa2 is less than the pressure threshold). It is determined whether the lubricating oil simultaneously satisfies the conditions that the second temperature T2 is greater than or equal to the temperature threshold and the second pressure Pa2 is less than the pressure threshold. If both conditions are met, it indicates that the viscosity and fluidity of the lubricating oil have returned to normal levels, and the lubricating oil will not cause the sealing system to fail and leak. At this time, step S206 (starting the range extender) can be executed so that the range extender can be effectively lubricated at the initial stage of startup.
[0050] It should be noted that the second speed can be the speed that matches the real-time operating conditions of the vehicle. That is, the second speed can correspond to the torque that the range extender needs to output. In this embodiment, when the first temperature T1 is greater than or equal to the temperature threshold and the first pressure Pa1 is greater than or equal to the pressure threshold, the pressure of the lubricating oil in the lubrication circuit is reduced by making the electronic oil pump run at the second speed that matches the real-time operating conditions of the vehicle. This avoids the need for additional and cumbersome speed adjustment procedures, further simplifying the start-up control method and further improving the efficiency of lubricating oil adjustment. At the same time, after the electronic oil pump runs at the second speed for a preset time, the lubricating oil in the lubrication circuit meets the minimum pressure requirement.
[0051] In addition, when the judgment result is S211 (the first temperature T1 is less than the temperature threshold), the S212 step is executed (continue to heat the lubricating oil and obtain the first temperature of the lubricating oil at preset intervals until the first temperature is greater than or equal to the target temperature), and the S204 and S205 steps are executed again. When the start-up conditions are met, the S206 step (start the range extender) is executed.
[0052] Based on the same inventive concept, please refer to Figure 3This application embodiment also provides a start-up control system 100, including a range extender 110, a temperature sensing module 111, a pressure sensing module 112, and a controller 120. The range extender 110 has a lubrication circuit for lubricating oil flow. The temperature sensing module 111 is located in the lubrication circuit and is used to collect the temperature information of the lubricating oil. The temperature sensing module 112 is used to collect the pressure information of the lubricating oil. The controller 120 is used to set temperature thresholds and pressure thresholds, and to acquire temperature information and pressure information. Based on the temperature information and temperature thresholds, and the pressure information and pressure thresholds, it determines whether to start the range extender 110.
[0053] Based on the same inventive concept, please refer to Figure 4 This application also provides an electronic device. In one embodiment, the electronic device, as shown in the figure, may include a memory 401, a communication module 403, and one or more processors 402.
[0054] The memory 401 is used to store computer programs executed by the processor 402. The memory 401 may mainly include a program storage area and a data storage area, wherein the program storage area may store the operating system; and the data storage area may store various operation instruction sets, etc.
[0055] Memory 401 may be volatile memory, such as random-access memory (RAM); memory 401 may also be non-volatile memory, such as read-only memory, flash memory, hard disk drive (HDD), or solid-state drive (SSD); or memory 401 may be any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto. Memory 401 may be a combination of the above-mentioned memories.
[0056] Processor 402 may include one or more central processing units (CPUs) or digital processing units, etc. Processor 402 is used to implement the above-mentioned method for detecting air resistance in the cooling circuit when calling the computer program stored in memory 401.
[0057] The communication module 403 is used to communicate with terminal equipment, site equipment or other network equipment.
[0058] This application embodiment does not limit the specific connection medium between the memory 401, communication module 403, and processor 402 described above. This application embodiment... Figure 4 The memory 401 and the processor 402 are connected via a bus 404, and the bus 404 is in Figure 4 The diagram uses thick lines to describe the connections between other components; these are for illustrative purposes only and should not be considered limiting. The 404 bus can be divided into address bus, data bus, control bus, etc. For ease of description, Figure 4 It is described using only a thick line, but does not indicate that there is only one bus or one type of bus.
[0059] The memory 401 stores a computer storage medium, which stores computer-executable instructions for implementing the method for determining air resistance in a cooling circuit according to embodiments of this application. The processor 402 is used to execute the method for detecting air resistance in a cooling circuit according to the embodiments described above.
[0060] Those skilled in the art will understand that Figure 4 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the electronic device to which the present application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.
[0061] Based on the same inventive concept, embodiments of this application provide a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the method for detecting air resistance in the cooling circuit of any of the above embodiments.
[0062] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.
[0063] Based on the same inventive concept, this application also provides a computer program product, including a computer program, which, when executed by a processor, implements the method for detecting air resistance in the cooling circuit of any of the above embodiments.
[0064] The program code for executing the computer program product of this application can be written in any combination of one or more programming languages. The program code can be executed entirely on the user device, partially on the user device, as a standalone software package, partially on the user device and partially on a remote device, or entirely on a remote device.
[0065] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
[0066] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.
[0067] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.
[0068] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of user-operated steps to be executed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.
[0069] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A start-up control method for a range extender, characterized in that, include: Receive a start command and acquire the initial temperature of the lubricating oil in the lubrication circuit of the range extender; the start command includes a preset temperature threshold. In response to the initial temperature of the lubricating oil being lower than the temperature threshold, the lubricating oil is heated to raise its temperature to a target temperature; wherein the difference between the target temperature and the temperature threshold is less than a first threshold. Obtain a preset pressure threshold and acquire the first pressure of the lubricating oil after it has been heated. The range extender is activated in response to the first pressure being less than the pressure threshold.
2. The control method according to claim 1, characterized in that, Heating the lubricating oil includes: The lubricating oil is heated by a heating module, and / or the electronic oil pump is operated at a first speed for a preset time; the electronic oil pump provides circulation power for the lubricating oil.
3. The control method according to claim 2, characterized in that, The difference between the first rotational speed and the peak rotational speed of the electronic oil pump is less than the second threshold.
4. The control method according to claim 1, characterized in that, Heating the lubricating oil to raise its temperature to a target temperature includes: The lubricating oil is heated, and the first temperature of the lubricating oil is collected at preset time intervals until the first temperature is greater than or equal to the target temperature.
5. The control method according to claim 2, characterized in that, After obtaining the preset pressure threshold and acquiring the first pressure of the lubricating oil after heating, the process includes: In response to the first pressure being greater than or equal to the pressure threshold, the electronic oil pump is operated at a second speed for a preset time; wherein the second speed is a speed that matches the real-time operating conditions of the vehicle, and the second speed is less than the first speed; The second temperature of the lubricating oil at the second rotational speed of the electronic oil pump is acquired, and the second pressure of the lubricating oil at the second rotational speed of the electronic oil pump is acquired. The range extender is activated in response to the second temperature being greater than or equal to the temperature threshold and the second pressure being less than the pressure threshold.
6. The control method according to claim 1, characterized in that, The temperature threshold is -10℃ to 10℃; the pressure threshold is 130Kpa to 190Kpa.
7. A starting control system for a range extender, characterized in that, include: The range extender has an internal lubrication circuit for the flow of lubricating oil; A temperature sensing module is installed in the lubrication circuit to collect the temperature information of the lubricating oil; A pressure sensing module is used to collect the pressure information of the lubricating oil; The controller is used to set temperature thresholds and pressure thresholds, and to acquire temperature information and pressure information. Based on the temperature information and the temperature thresholds, and the pressure information and the pressure thresholds, it determines whether to start the range extender.
8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and for running on the processor, characterized in that, When the processor executes the computer program, it implements the startup control method according to any one of claims 1 to 6.
9. A computer-readable storage medium having program instructions stored thereon, characterized in that, When the program instructions are executed by the processor, they implement the startup control method according to any one of claims 1 to 6.
10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the startup control method as described in any one of claims 1 to 6.