Range extender control method and system, vehicle and computer readable storage medium

Abstract

The invention discloses a range extender control method and system, a vehicle and a computer readable storage medium, and relates to the technical field of range extenders, the range extender control method is applied to setting of a range extender control system, the range extender control system comprises a main range extender and an auxiliary range extender, and the power parameter information of the range extender control system is obtained, so that the power parameter information of the main range extender and the auxiliary range extender is obtained. Determining the total power of the range extender according to the power parameter information; determining the required power of the range extender according to the total power of the range extender, and determining the distributed power of the range extender according to the required power of the range extender and the preset maximum power of the range extender; and performing power control on the main range extender and the auxiliary range extender according to the range extender distribution power so as to improve the energy consumption efficiency of the main range extender and the auxiliary range extender. According to the invention, the energy consumption efficiency under the condition of low power consumption is improved.

Description

Technical Field

[0001] The present application relates to the technical field of range extenders, and in particular to a range extender control method, system, vehicle and computer-readable storage medium. Background Art

[0002] With the popularization of range extenders in different fields, users have also put forward higher requirements on the control methods of range extenders.

[0003] The traditional range extender control method is to use a range extender to perform range extension control in a fixed power output mode. This range extender control method has certain defects. Because the range extender control is performed in a fixed power output mode, the energy efficiency is low under low power consumption conditions. Therefore, a new range extender control method is urgently needed to solve the problem of low energy efficiency under low power consumption conditions.

[0004] The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of the present application is to provide a range extender control method, system, vehicle and computer-readable storage medium, aiming to solve the technical problem of low energy efficiency under low power consumption conditions.

[0006] To achieve the above-mentioned object, the present application provides a range extender control method, the range extender control method is applied to a range extender control system, the range extender control system includes a main range extender and an auxiliary range extender, and the range extender control method includes:

[0007] Acquiring power parameter information of the range extender control system, and determining the total power of the range extender according to the power parameter information;

[0008] Determine the required power of the range extender according to the total power of the range extender, and determine the allocated power of the range extender according to the required power of the range extender and the preset maximum power of the range extender;

[0009] Power control is performed on the main range extender and the auxiliary range extender according to the range extender allocation power, so as to improve energy consumption efficiency of the main range extender and the auxiliary range extender.

[0010] In one embodiment, the step of determining the required power of the range extender according to the total power of the range extender includes:

[0011] Determine the required power of the main range extender corresponding to the total power of the range extender in a preset main range extender power table, and determine the difference between the total power of the range extender and the required power of the main range extender as the required power of the auxiliary range extender;

[0012] When the auxiliary range extender required power is not zero, the main range extender required power and the auxiliary range extender required power are used as the range extender required power;

[0013] When the auxiliary range extender required power is zero, the main range extender required power is used as the range extender allocated power, and the step of controlling the power of the main range extender and the auxiliary range extender according to the range extender allocated power is performed.

[0014] In one embodiment, the step of determining the range extender allocated power according to the range extender required power and the preset range extender maximum power includes:

[0015] Determine the auxiliary range extender maximum power and the main range extender maximum power in the preset range extender maximum power, and detect whether the auxiliary range extender maximum power is less than the auxiliary range extender required power in the range extender required power;

[0016] When the auxiliary range extender maximum power is less than the auxiliary range extender required power in the range extender required power, determining a power difference between the auxiliary range extender required power and the auxiliary range extender maximum power, and determining a power sum between the power difference and the main range extender required power in the range extender required power as the main range extender allocated power;

[0017] When the main range extender allocated power is less than or equal to the main range extender maximum power, the main range extender allocated power and the auxiliary range extender maximum power are used as the range extender allocated power, wherein the main range extender allocated power is used to perform power control on the main range extender, and the auxiliary range extender maximum power is used to perform power control on the auxiliary range extender;

[0018] When the main range extender allocated power is greater than the main range extender maximum power, the main range extender maximum power and the auxiliary range extender maximum power are used as the range extender allocated power, wherein the main range extender maximum power is used to perform power control on the main range extender.

[0019] In one embodiment, after the step of detecting whether the auxiliary range extender maximum power is less than the auxiliary range extender required power in the range extender required power, the method further comprises:

[0020] When the auxiliary range extender maximum power is greater than or equal to the auxiliary range extender required power in the range extender required power, the main range extender required power and the auxiliary range extender required power in the range extender required power are used as the range extender allocated power, wherein the main range extender required power is used to perform power control on the main range extender, and the auxiliary range extender required power is used to perform power control on the auxiliary range extender.

[0021] In one embodiment, before the step of determining the range extender allocated power according to the range extender required power and the preset range extender maximum power, the step includes:

[0022] Obtaining a first range extender parameter of the main range extender and a second range extender parameter of the auxiliary range extender, and determining a maximum power of the main range extender corresponding to the first range extender parameter and a maximum power of the auxiliary range extender corresponding to the second range extender parameter in a preset parameter power correspondence table;

[0023] The main range extender maximum power and the auxiliary range extender maximum power are used as preset range extender maximum power.

[0024] In one embodiment, the range extender control system includes an information collector, the power parameter information includes chip power, system parameters, driving power and charging power collected by the information collector, and the step of determining the total power of the range extender according to the power parameter information includes:

[0025] Determine an initial required power in a preset required power table based on at least one of the chip power, the system parameter and the driving power, and determine a system maximum power in a preset maximum power table based on at least one of the chip power and the charging power;

[0026] When the initial required power is greater than the maximum power of the system, the maximum power of the system is used as the total power of the range extender;

[0027] When the initial required power is less than or equal to the maximum power of the system, the initial required power is used as the total power of the range extender.

[0028] In one embodiment, before the step of obtaining the power parameter information of the range extender control system, the range extender control method further includes:

[0029] Acquire a first fault state and a first power generation amount of the first range extender, and a second fault state and a second power generation amount of the second range extender;

[0030] When the first fault state is a preset fault state and the second fault state is a preset normal state, the second range extender is used as a main range extender and the first range extender is used as an auxiliary range extender;

[0031] When the first fault state is a preset normal state and the second fault state is a preset normal state, determining a power generation difference between the first power generation and the second power generation;

[0032] When the power generation difference is greater than a preset first calibration threshold, the second range extender is used as a main range extender and the first range extender is used as an auxiliary range extender;

[0033] When the power generation difference is less than a preset second calibration threshold, the first range extender is used as a main range extender and the second range extender is used as an auxiliary range extender, wherein the second calibration threshold is less than the first calibration threshold;

[0034] When the first fault state is a preset normal state and the second fault state is a preset fault state, the first range extender is used as a main range extender and the second range extender is used as an auxiliary range extender.

[0035] In addition, to achieve the above-mentioned purpose, the present application also provides a range extender control system, the range extender control system includes a range extender controller, a main range extender and an auxiliary range extender, the range extender controller is connected to the main range extender and the auxiliary range extender, and the range extender controller includes:

[0036] A power determination module, used to obtain power parameter information of the range extender control system and determine the total power of the range extender according to the power parameter information;

[0037] A distribution compensation module, used to determine the required power of the range extender according to the total power of the range extender, and determine the allocated power of the range extender according to the required power of the range extender and a preset maximum power of the range extender;

[0038] A power control module is used to control the power of the main range extender and the auxiliary range extender according to the power distribution of the range extender, so as to improve the energy consumption efficiency of the main range extender and the auxiliary range extender.

[0039] In addition, to achieve the above-mentioned purpose, the present application also provides a vehicle, including a range extender control system, a processor, a memory, and a range extender control method program stored on the memory and executable by the processor, wherein when the range extender control method program is executed by the processor, the steps of the range extender control method as described above are implemented.

[0040] The present application also provides a computer-readable storage medium, on which a range extender control method program is stored, wherein when the range extender control method program is executed by a processor, the steps of the range extender control method as described above are implemented.

[0041] The embodiment of the present application provides a range extender control method, which is applied to a range extender control system. The range extender control system includes a main range extender and an auxiliary range extender. The power parameter information of the range extender control system is obtained, and the total power of the range extender is determined according to the power parameter information; the required power of the range extender is determined according to the total power of the range extender, and the allocated power of the range extender is determined according to the required power of the range extender and the preset maximum power of the range extender; the power of the main range extender and the auxiliary range extender are controlled according to the allocated power of the range extender to improve the energy consumption efficiency of the main range extender and the auxiliary range extender. This range extender control method uses the main range extender and the auxiliary range extender for range extension processing, and determines the range extension of the two range extenders by determining the total power of the range extender. The range extender requires power, and then the range extender allocation power is determined based on the range extender demand power of the two range extenders, and finally the main range extender and the auxiliary range extender are power controlled based on the range extender allocation power, so as to avoid range extender control in a fixed power output mode (that is, fixed power is used regardless of high or low power consumption, that is, higher power is used under low power consumption, resulting in low energy efficiency). However, there is a problem of low energy efficiency under low power consumption. This range extender control method uses two range extenders, and then performs compensation allocation based on the total power of the range extender, so as to avoid the phenomenon that a single range extender uses fixed power regardless of high or low power consumption, thereby improving the energy efficiency under low power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a flow chart of the first embodiment of the range extender control method of the present application;

[0043] Figure 2 A schematic diagram of a system framework of the range extender control system of the present application;

[0044] Figure 3 This is a schematic diagram of the process framework of the second embodiment of the range extender control method of the present application;

[0045] Figure 4 This is a schematic diagram of the process framework of the third embodiment of the range extender control method of the present application;

[0046] Figure 5 This is a schematic diagram of the process framework of the fourth embodiment of the range extender control method of the present application;

[0047] Figure 6 This is a module diagram of the basic chip of the system of this application;

[0048] Figure 7 This is a schematic diagram of the device structure of the hardware operating environment involved in this application.

[0049] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0050] Description of Figure Numbers:

[0051] 1001. Processing device; 1002. Read-only memory; 1003. Storage device; 1004. Random access memory; 1005. Bus; 1006. Input / output interface; 1007. Input device; 1008. Output device; 1009. Communication device. DETAILED DESCRIPTION

[0052] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0053] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0054] The existing control principle of the scheme of using one range extender for range extension control is: using a single range extender to operate at constant power. Although the entire range extension control scheme is simple and reliable, it is unable to adjust the output according to the working conditions, and has low efficiency at low load, that is, 100khz (high power consumption) power is required and it is operated at a constant power of 50khz, and 10khz (low power consumption) power is required and it is operated at a constant power of 50khz, that is, the energy efficiency is low under low power consumption conditions (that is, 10khz power is required and it is operated at a constant power of 50khz, and the constant power of 50khz itself has a large loss).

[0055] Therefore, based on the shortcomings of the above range extender control method, the range extender control method of the present application is proposed. The solution of the embodiment of the present application is: use the main range extender and the auxiliary range extender to perform range extension processing, determine the range extender required power of the two range extenders by determining the total power of the range extender, and then determine the range extender allocation power based on the range extender required power of the two range extenders, and finally control the power of the main range extender and the auxiliary range extender based on the range extender allocation power, and avoid range extension control in a fixed power output mode (that is, fixed power is used regardless of high or low power consumption, that is, higher power is used under low power consumption, resulting in low energy efficiency), and there is a problem of low energy efficiency under low power consumption. This range extender control method uses two range extenders, and then performs compensation allocation based on the total power of the range extender to avoid the phenomenon that a single range extender uses fixed power regardless of high or low power consumption, thereby improving energy efficiency under low power consumption.

[0056] It should be noted that the execution subject of this embodiment may be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or a device capable of realizing the above functions, a range extender controller, etc. The following takes the range extender controller as an example to illustrate this embodiment and the following embodiments.

[0057] Based on this, the embodiment of the present application provides a range extender control method, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the range extender control method of the present application.

[0058] Reference Figure 1 The present application provides a range extender control method. In a first embodiment of the range extender control method, the range extender control method is applied to a range extender control system. The range extender control system includes a main range extender and an auxiliary range extender. The range extender control method includes:

[0059] Step S10, obtaining power parameter information of the range extender control system, and determining the total power of the range extender according to the power parameter information;

[0060] For example, refer to Figure 2 , Figure 2 This is a system framework diagram of the range extender control system of this application. The range extender control system consists of a first range extender and a second range extender (internal combustion engine-generator combination), and the first range extender and the second range extender are used as the main range extender and the auxiliary range extender (there may be one auxiliary range extender or multiple auxiliary range extenders, and this application is described with one auxiliary range extender) in the actual range extender control, and then the dynamic distribution of the generated power is realized through coordinated control to discharge the distribution box (the battery can also be used to discharge the distribution box), and then through the use time of the drive motor (mainly to increase the power output time). At this time, the use of the main and auxiliary range extenders can optimize energy consumption on the one hand, that is, the dual range extender can flexibly allocate the generated power according to the vehicle operating conditions (such as low-speed cruising, rapid acceleration, climbing, etc.), avoid the single range extender when the efficiency drops sharply when running at low load, and the comprehensive energy consumption is lower (the solution that is generally easy to think of should be to change the constant power of a single range extender in time, that is, not to operate at constant power). On the other hand, the cost of the main and auxiliary range extenders is lower, that is, the cost of the dual range extender is lower than that of the single range extender.

[0061] In this embodiment, when the main and auxiliary range extenders are controlled to extend the range, the total power of the range extender is determined based on the power parameter information of the range extender control system, wherein the power parameter information refers to the parameters within the range extender control system itself or the parameters of other components obtained by the range extender control system to determine the required range extender power, and the total power of the range extender refers to the total output power required by the two range extenders, and then the total output power required by the two range extenders can be determined based on the power parameter information to distribute power to the two range extenders, so that the total power of the range extender is realized by the two range extenders (you can choose to use a lower power to work, and then distribute and match the lower power), so as to avoid the phenomenon that a single range extender uses a fixed power to work regardless of high or low power consumption, so as to improve the energy consumption efficiency under low power consumption conditions.

[0062] Step S20, determining the required power of the range extender according to the total power of the range extender, and determining the allocated power of the range extender according to the required power of the range extender and the preset maximum power of the range extender;

[0063] In this embodiment, after determining the total power of the range extender, the power of the two range extenders will be allocated based on efficiency and NVH (Noise, Vibration and Harshness), that is, the best allocation method under the total power of the range extender is determined to ensure the efficiency and NVH of the main range extender and / or the two range extenders are optimal, and then the power required to be output by each of the two range extenders is determined as the required power of the range extender. It is worth noting that because the two range extenders work together, only one range extender works at low power to reduce NVH; at high power, the two range extenders work together. At this time, when the two range extenders work together, there will be a situation where the power of the auxiliary range extender is insufficient. The power that needs to be allocated to each range extender will be determined based on the required power of the range extenders of the two range extenders and the maximum power of each range extender, that is, the range extender allocation power, wherein the maximum power of the range extender refers to the maximum output power of the two range extenders, which is related to the hardware design of the range extender itself and the environment in which it is located. That is, when the auxiliary range extender is just started and the power is insufficient, the main range extender will compensate to achieve the extended range output of the entire system, thereby ensuring the power output accuracy of the entire system.

[0064] Step S30 , power control is performed on the main range extender and the auxiliary range extender according to the range extender allocation power, so as to improve the energy consumption efficiency of the main range extender and the auxiliary range extender.

[0065] In this embodiment, after determining the allocated power of the range extender, the power of the main range extender is controlled based on the power allocated to the main range extender in the range extender allocated power, and the power of the auxiliary range extender is controlled based on the power allocated to the auxiliary range extender in the range extender allocated power. Power control refers to controlling the range extender to output with the allocated power, so that the power required by the entire system can be distributed and output through the two range extenders to ensure the energy efficiency of each range extender, thereby improving the energy efficiency of the overall system. At the same time, energy efficiency can be ensured through power distribution under low power consumption conditions, and then the efficiency of the traditional single range extender at low load is only 30%-40%, and the dual range extender control system can be realized. The comprehensive efficiency is increased to 45%-55% through dynamic allocation to improve the energy efficiency under low power consumption conditions.

[0066] In this embodiment, a range extender control method is provided, which is applied to a range extender control system. The range extender control system includes a main range extender and an auxiliary range extender. The power parameter information of the range extender control system is obtained, and the total power of the range extender is determined according to the power parameter information; the required power of the range extender is determined according to the total power of the range extender, and the allocated power of the range extender is determined according to the required power of the range extender and the preset maximum power of the range extender; the power of the main range extender and the auxiliary range extender are controlled according to the allocated power of the range extender to improve the energy consumption efficiency of the main range extender and the auxiliary range extender. This range extender control method uses the main range extender and the auxiliary range extender for range extension processing, and determines the range extension of the two range extenders by determining the total power of the range extender. The range extender requires power, and then the range extender allocation power is determined based on the range extender demand power of the two range extenders, and finally the main range extender and the auxiliary range extender are power controlled based on the range extender allocation power, so as to avoid range extender control in a fixed power output mode (that is, fixed power is used regardless of high or low power consumption, that is, higher power is used under low power consumption, resulting in low energy efficiency). However, there is a problem of low energy efficiency under low power consumption. This range extender control method uses two range extenders, and then performs compensation allocation based on the total power of the range extenders, so as to avoid the phenomenon that a single range extender uses fixed power regardless of high or low power consumption, thereby improving the energy efficiency under low power consumption.

[0067] Further, based on the first embodiment of the present application, a second embodiment of the range extender control method of the present application is proposed. In this embodiment, the above step S20, the step of determining the required power of the range extender according to the total power of the range extender, includes:

[0068] Step S201, determining the required power of the main range extender corresponding to the total power of the range extender in a preset main range extender power table, and determining the difference between the total power of the range extender and the required power of the main range extender as the required power of the auxiliary range extender;

[0069] Step S202, when the auxiliary range extender required power is not zero, the main range extender required power and the auxiliary range extender required power are used as the range extender required power;

[0070] Step S203, when the auxiliary range extender required power is zero, the main range extender required power is used as the range extender allocated power, and the step of power controlling the main range extender and the auxiliary range extender according to the range extender allocated power is performed.

[0071] In this embodiment, when determining the required power of the range extender of the main and auxiliary range extenders, the required power of the main range extender corresponding to the total power of the range extender will be determined in the preset main range extender power table, that is, the power that needs to be allocated to the main range extender based on the total power of the range extender at this time is determined in the preset main range extender power table, that is, the required power of the main range extender refers to the power expected to be allocated to the main range extender, and the main range extender power table refers to the optimal allocated power table selected based on the range extender power and NVH performance, which can be determined based on experiments. After the required power of the main range extender is determined, the difference between the total power of the range extender and the required power of the main range extender will be determined as the required power of the auxiliary range extender. The required power of the auxiliary range extender refers to the power expected to be allocated to the auxiliary range extender. At this time, it will be divided into the case where the required power of the auxiliary range extender is not zero, that is, power is allocated to the auxiliary range extender, that is, at this time, it is a large power demand, and then the required power of the main range extender and the required power of the auxiliary range extender will be used as the required power of the range extender for subsequent processing. On the contrary, when the required power of the auxiliary range extender is zero, that is, no power is allocated to the auxiliary range extender, that is, at this time, it is a small power demand, and the required power of the main range extender will be directly used as the allocated power of the range extender, so that the main range extender can directly perform power control based on the required power of the main range extender, that is, directly execute the step of power control of the main range extender and the auxiliary range extender according to the allocated power of the range extender (at this time, there is no power demand for the auxiliary range extender, so power control can be performed). Because in the case of low power, the single range extender follows the driving power of the vehicle. When the driving power fluctuates greatly, the range extender's compliance changes greatly and the NVH performance is poor. In the above low power case, only one range extender works in the dual range extender system, and the vibration and noise are smaller than the single range extender under the same power. For further information, please refer to Figure 3 , Figure 3 This is a flow chart of the second embodiment of the range extender control method of the present application. After determining the total power of the range extender, the required power of the main range extender is determined based on the main range extender power table, that is, the required power of the main range extender is obtained by looking up the table, and the required power of the auxiliary range extender is obtained by subtracting the required power of the main range extender from the total power of the range extender. Under low load, the required power of the auxiliary range extender is generally 0, and the range extender is in a shutdown state. It will only start when the power is high, thereby ensuring energy efficiency under low power consumption conditions.

[0072] Further, based on the first embodiment and / or the second embodiment of the present application, a third embodiment of the range extender control method of the present application is proposed. In this embodiment, the above step S20, the step of determining the range extender allocated power according to the range extender required power and the preset range extender maximum power, includes:

[0073] Step S211, determining the auxiliary range extender maximum power and the main range extender maximum power in the preset range extender maximum power, and detecting whether the auxiliary range extender maximum power is less than the auxiliary range extender required power in the range extender required power;

[0074] Step S212, when the maximum power of the auxiliary range extender is less than the auxiliary range extender required power in the range extender required power, determining the power difference between the auxiliary range extender required power and the auxiliary range extender maximum power, and determining the power sum between the power difference and the main range extender required power in the range extender required power as the main range extender allocated power;

[0075] Step S213, when the main range extender allocated power is less than or equal to the main range extender maximum power, the main range extender allocated power and the auxiliary range extender maximum power are used as the range extender allocated power, wherein the main range extender allocated power is used to control the power of the main range extender, and the auxiliary range extender maximum power is used to control the power of the auxiliary range extender;

[0076] Step S214, when the main range extender allocated power is greater than the main range extender maximum power, the main range extender maximum power and the auxiliary range extender maximum power are used as the range extender allocated power, wherein the main range extender maximum power is used to control the power of the main range extender.

[0077] In this embodiment, in addition to determining the allocated power for the main and auxiliary range extenders, compensation will also be performed based on actual conditions, but the compensation is generally for the main range extender to compensate the auxiliary range extender, so if there is no allocated power for the auxiliary range extender, the following steps will not be performed. By determining the maximum power of the auxiliary range extender and the maximum power of the main range extender in the preset maximum power of the range extender, that is, the maximum output power of the main range extender and the maximum output power of the auxiliary range extender are stored in the preset maximum power of the range extender, and the maximum output power of the range extender is related to the hardware and parameters of the range extender itself, it will be detected at this time whether the maximum power of the auxiliary range extender is less than the auxiliary range extender required power in the range extender required power, that is, it is determined whether the main range extender needs to be used to compensate the auxiliary range extender. When it is determined that the maximum power of the auxiliary range extender is less than the auxiliary range extender required power in the range extender required power, that is, it is determined at this time that the auxiliary range extender needs to be compensated, the power difference between the auxiliary range extender required power and the auxiliary range extender maximum power will be determined, and then the power difference will be added to the main range extender required power to obtain the main range extender allocated power that the main range extender needs to output. After determining the power that the main range extender needs to output, the main range extender allocated power will be judged, mainly to detect whether the main range extender allocated power is greater than the main range extender maximum power, and then when the main range extender allocated power is less than or equal to the main range extender maximum power, the main range extender allocated power and the auxiliary range extender maximum power are used as the range extender allocated power, wherein the main range extender allocated power is used to control the power of the main range extender, and the auxiliary range extender maximum power is used to control the power of the auxiliary range extender; when the main range extender allocated power is greater than the main range extender maximum power, the main range extender maximum power and the auxiliary range extender maximum power are used as the range extender allocated power, wherein the main range extender maximum power is used to control the power of the main range extender, that is, the main range extender maximum power is used as the output limit to ensure the accuracy of the main range extender output.

[0078] Further, after the step of detecting whether the maximum power of the auxiliary range extender is less than the auxiliary range extender required power in the range extender required power, the method includes:

[0079] Step S2111, when the maximum power of the auxiliary range extender is greater than or equal to the auxiliary range extender required power in the range extender required power, the main range extender required power and the auxiliary range extender required power in the range extender required power are used as the range extender allocated power, wherein the main range extender required power is used to perform power control on the main range extender, and the auxiliary range extender required power is used to perform power control on the auxiliary range extender.

[0080] In this embodiment, if it is determined that the maximum power of the auxiliary range extender is greater than or equal to the auxiliary range extender required power in the range extender required power, that is, the auxiliary range extender does not need compensation, the main range extender required power and the auxiliary range extender required power in the range extender required power will be directly used as the range extender allocated power, wherein the main range extender required power is used to control the power of the main range extender, and the auxiliary range extender required power is used to control the power of the auxiliary range extender. Further, please refer to Figure 4 , Figure 4 This is a schematic diagram of the process framework of the third embodiment of the range extender control method of the present application. The required power of the main range extender and the required power of the auxiliary range extender are obtained by the power demand allocation in the previous steps S201-S203. The auxiliary range extender allocated power will be obtained based on the auxiliary range extender required power and the auxiliary range extender maximum power. The smaller one represents the power generation power to be currently executed by the auxiliary range extender. The main range extender allocated power will be determined again, representing the power generation power to be currently executed by the main range extender. The determination method is: the auxiliary range extender required power minus the auxiliary range extender allocated power to obtain the compensation power (i.e., power difference) required by the main range extender, which is then added to the main range extender required power, and then the smaller one is obtained by the main range extender maximum power. Its main function is that when the auxiliary range extender is at low temperature or fails, it cannot generate electricity immediately. In order to maintain the balance between the driving power and the generated power, the main range extender performs compensation to ensure the accuracy of the control of the main and auxiliary range extenders.

[0081] Further, based on the first embodiment, the second embodiment and / or the third embodiment of the present application, a fourth embodiment of the range extender control method of the present application is proposed. In this embodiment, before the step of determining the range extender allocated power according to the range extender required power and the preset range extender maximum power, the method includes:

[0082] Step S40, obtaining a first range extender parameter of the main range extender and a second range extender parameter of the auxiliary range extender, and determining a maximum power of the main range extender corresponding to the first range extender parameter and a maximum power of the auxiliary range extender corresponding to the second range extender parameter in a preset parameter power correspondence table;

[0083] Step S50: The maximum power of the main range extender and the maximum power of the auxiliary range extender are used as the preset maximum power of the range extender.

[0084] In this embodiment, before determining the allocated power of the range extender (it can also be performed synchronously before executing the entire method), the maximum power of the main and auxiliary range extenders needs to be determined. Because the maximum power affecting the main and auxiliary range extenders may change in real time, it needs to be determined before determining the allocated power of the range extender, and it can also be determined before the entire method, and the initially determined maximum power of the main and auxiliary range extenders can be used subsequently. That is, by obtaining the first range extender parameter of the main range extender and the second range extender parameter of the auxiliary range extender, and then determining the main range extender maximum power corresponding to the first range extender parameter and the auxiliary range extender maximum power corresponding to the second range extender parameter in the preset parameter power correspondence table, the main range extender maximum power and the auxiliary range extender maximum power can be used as the preset range extender maximum power, wherein the first range extender parameter refers to the parameter of the main range extender, which may include the water temperature, oil pressure, intake temperature, etc. of the engine related to the main range extender, the temperature of the generator and the generator controller and the internally defined fault level, etc., the second range extender parameter refers to the parameter of the auxiliary range extender, and the parameter power correspondence table refers to the correspondence table between different parameters and power defined by the user, and then the subsequent power control can be performed based on the determined maximum power of the range extender to ensure the accuracy of the subsequent power control.

[0085] In one embodiment, the range extender control system includes an information collector, the power parameter information includes chip power, system parameters, driving power and charging power collected by the information collector, and the step of determining the total power of the range extender according to the power parameter information includes:

[0086] Step S11, determining an initial required power in a preset required power table based on at least one of chip power, system parameters and driving power, and determining a system maximum power in a preset maximum power table based on at least one of chip power and charging power;

[0087] Step S12, when the initial required power is greater than the maximum power of the system, the maximum power of the system is used as the total power of the range extender;

[0088] Step S13: when the initial required power is less than or equal to the maximum power of the system, the initial required power is used as the total power of the range extender.

[0089] In this embodiment, the range extender control system includes an information collector, such as a sensor, chip, etc. that collects the following information, the power parameter information includes the chip power collected by the information collector (such as the power of the system-level control chip in the entire system, which can be collected based on the collection unit in the chip), system parameters (referring to the parameters of the entire system, such as the vehicle speed, tire speed, etc. on the vehicle set by the range extender control system, which can be determined based on relevant sensors), driving power (referring to the power of the power supply driving motor, which can be determined based on relevant sensors) and charging power (charging power of the battery management system, which can be obtained based on the battery management system itself). Then, the initial required power will be determined in the preset required power table based on at least one of the chip power, system parameters and driving power, and the system maximum power will be determined in the preset maximum power table based on at least one of the chip power and charging power, wherein the initial required power refers to the power initially required determined based on the parameters, the system maximum power refers to the maximum output power of the entire range extender control system determined based on the parameters, the preset required power table refers to the relationship table between the power parameters defined by the user and the required power, and the maximum power table refers to the relationship table between the power parameters defined by the user and the system maximum power, and the above tables can be determined based on a large number of experiments. After determining the system maximum power and the initial required power, the total power of the two range extenders will be determined based on the relationship between the two. That is, when the initial required power is greater than the system maximum power, the system maximum power will be used as the total power of the range extender; when the initial required power is less than or equal to the system maximum power, the initial required power will be used as the total power of the range extender. In other words, the total power of the vehicle range extender is obtained by taking the smaller of the initial required power and the system maximum power, so as to provide a basis for subsequent power allocation.

[0090] Further, based on the first embodiment, the second embodiment, the third embodiment and / or the fourth embodiment of the present application, a fifth embodiment of the range extender control method of the present application is proposed. In this embodiment, before the step of obtaining the power parameter information of the range extender control system, the range extender control method further includes:

[0091] Step a, obtaining a first fault state and a first power generation amount of a first range extender, and a second fault state and a second power generation amount of a second range extender;

[0092] Step b, when the first fault state is a preset fault state and the second fault state is a preset normal state, the second range extender is used as a main range extender and the first range extender is used as an auxiliary range extender;

[0093] Step c, when the first fault state is a preset normal state and the second fault state is a preset normal state, determining a power generation difference between the first power generation and the second power generation;

[0094] Step d, when the power generation difference is greater than a preset first calibration threshold, the second range extender is used as the main range extender and the first range extender is used as the auxiliary range extender;

[0095] Step e: when the power generation difference is less than a preset second calibration threshold, the first range extender is used as the main range extender and the second range extender is used as the auxiliary range extender, wherein the second calibration threshold is less than the first calibration threshold;

[0096] Step f: when the first fault state is a preset normal state and the second fault state is a preset fault state, the first range extender is used as a main range extender and the second range extender is used as an auxiliary range extender.

[0097] In this embodiment, before executing the entire range extender control method, it is necessary to determine which one is selected as the main range extender and which one is selected as the auxiliary range extender, by obtaining the first fault state and the first power generation of the first range extender, and the second fault state and the second power generation of the second range extender. The first fault state refers to the fault state of the first range extender, which is generally a normal or faulty state, and the second fault state refers to the fault state of the second range extender, which is generally a normal or faulty state. The first power generation refers to the power generation of the first range extender throughout its life cycle, and the second power generation refers to the power generation of the second range extender throughout its life cycle. It is worth noting that the first / second range extender is the main and auxiliary range extender in the range extender control system, but it is necessary to determine which one is selected as the main range extender and which one is selected as the auxiliary range extender based on the power and fault state. When the first fault state is a preset fault state (i.e., a state in which a fault exists and the fault affects the power output), but the second fault state is a preset normal state (i.e., a state in which there is no fault or the fault does not affect the power output), the second range extender will be directly used as the main range extender and the first range extender will be used as the auxiliary range extender, that is, the first range extender is generally used as the main range extender, but when the first range extender is in the preset fault state, the second range extender will be directly used as the main range extender and the first range extender will be used as the auxiliary range extender. When the first fault state is a preset normal state, and the second fault state is a preset normal state (i.e., both range extenders are normal), the power generation difference between the first power generation and the second power generation (the difference between the first power generation and the second power generation) is determined, and then when the power generation difference is greater than the preset first calibration threshold, the second range extender is used as the main range extender and the first range extender is used as the auxiliary range extender. Conversely, when the power generation difference is less than the preset second calibration threshold, the first range extender is used as the main range extender and the second range extender is used as the auxiliary range extender, wherein the second calibration threshold is less than the first calibration threshold. When the first fault state is a preset normal state, and the second fault state is a preset fault state, the first range extender is used as the main range extender and the second range extender is used as the auxiliary range extender, that is, the entire process is judged with the fault state as the first priority and the power generation as the second priority, so as to ensure the switching between the main and auxiliary range extenders, and then ensure that the first / second range extender can balance the working time, so as to ensure the service life of all range extenders in the overall range extender control system. For further information, please refer to Figure 5 , Figure 5This is a schematic diagram of the process framework of the fourth embodiment of the range extender control method of the present application. The power generation Q1 of the first range extender and the power generation Q2 of the second range extender are the power generation of the two range extenders during their life cycle, which are calculated in real time and stored in the bottom layer of the chip, that is, real-time statistics are performed after each use. By default, the first range extender is defined as the main range extender and the second range extender is defined as the auxiliary range extender. In the normal state of the two range extenders, when the power generation Q1 of the first range extender minus the power generation Q2 of the second range extender is greater than the calibration value Qhi (i.e., the first calibration threshold), the second range extender is defined as the main range extender and the first range extender is defined as the auxiliary range extender; when the power generation Q1 of the first range extender minus the power generation Q2 of the second range extender is less than the calibration value Qlo (the second calibration threshold), the first range extender can be switched back to the state of the main range extender to ensure that the service life of the two range extenders is the same, thereby increasing the service life of the entire range extender control system. It is worth noting that when the first range extender fails, the second range extender is automatically switched to be the main range extender. Conversely, when the second range extender fails, the first range extender is automatically switched to be the main range extender to ensure the normal operation of the range extender control system.

[0098] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the range extender control method of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0099] The present application also provides a range extender control system, the range extender control system includes a range extender controller, a main range extender and an auxiliary range extender, the range extender controller is connected to the main range extender and the auxiliary range extender, please refer to Figure 6 , the range extender controller comprises:

[0100] A power determination module 10 is used to obtain power parameter information of the range extender control system and determine the total power of the range extender according to the power parameter information;

[0101] The allocation compensation module A20 is used to determine the required power of the range extender according to the total power of the range extender, and to determine the allocated power of the range extender according to the required power of the range extender and the preset maximum power of the range extender;

[0102] The power control module A30 is used to control the power of the main range extender and the auxiliary range extender according to the power distribution of the range extender, so as to improve the energy consumption efficiency of the main range extender and the auxiliary range extender.

[0103] The range extender control system provided by the present application adopts the range extender control method in the above embodiment, which can solve the technical problem of low energy efficiency under low power consumption conditions. Compared with the prior art, the beneficial effects of the range extender control system provided by the present application are the same as the beneficial effects of the range extender control method provided by the above embodiment, and other technical features in the range extender control system are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0104] The present application provides a vehicle, comprising: the above-mentioned range extender control system (it is worth noting that the subsequent processor and memory can be set in the system basic chip in the range extender control system), at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the range extender control method in the above-mentioned embodiment one.

[0105] Reference below Figure 7 , which shows a schematic diagram of a structure of a vehicle suitable for implementing the embodiment of the present application. The vehicle in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 7 The vehicle shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0106] like Figure 7As shown, the vehicle may include a processing system 1001 (e.g., a central processing unit, a graphics processor, etc.), which may perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage system 1003 to a random access memory 1004. Various programs and data required for vehicle operation are also stored in the random access memory 1004. The processing system 1001, the read-only memory 1002, and the random access memory 1004 are connected to each other via a bus 1005. An input / output interface 1006 is also connected to the bus. Generally, the following systems may be connected to the input / output interface 1006: an input system 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output system 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage system 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication system 1009. The communication system 1009 can allow the vehicle to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a vehicle with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or have alternatively.

[0107] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication system, or installed from a storage system 1003, or installed from a read-only memory 1002. When the computer program is executed by the processing system 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0108] The vehicle provided by the present application adopts the range extender control method in the above embodiment, which can solve the technical problem of low energy efficiency under low power consumption conditions. Compared with the prior art, the beneficial effects of the vehicle provided by the present application are the same as the beneficial effects of the range extender control method provided by the above embodiment, and the other technical features in the vehicle are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0109] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0110] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0111] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, the computer-readable program instructions being used to execute the range extender control method in the above-mentioned embodiment.

[0112] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with 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 above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0113] The computer-readable storage medium may be included in the vehicle, or may exist independently without being installed in the vehicle.

[0114] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by a vehicle, the vehicle:

[0115] Acquiring power parameter information of the range extender control system, and determining the total power of the range extender according to the power parameter information;

[0116] Determine the required power of the range extender according to the total power of the range extender, and determine the allocated power of the range extender according to the required power of the range extender and the preset maximum power of the range extender;

[0117] Power control is performed on the main range extender and the auxiliary range extender according to the range extender allocation power, so as to improve energy consumption efficiency of the main range extender and the auxiliary range extender.

[0118] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0119] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0120] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0121] The computer-readable storage medium provided in this application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned range extender control method, and can solve the technical problem of low energy efficiency under low power consumption conditions. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the range extender control method provided in the above-mentioned embodiment, and will not be repeated here.

[0122] The present application also provides a computer program product, including a computer program, which implements the steps of the range extender control method as described above when the computer program is executed by a processor.

[0123] The computer program product provided in this application can solve the technical problem of low energy efficiency under low power consumption conditions. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the range extender control method provided in the above embodiment, which will not be repeated here.

[0124] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A range extender control method, characterized in that: The range extender control method is applied to a range extender control system, the range extender control system includes a main range extender and an auxiliary range extender, and the range extender control method includes: Acquiring power parameter information of the range extender control system, and determining the total power of the range extender according to the power parameter information; Determine the required power of the range extender according to the total power of the range extender, and determine the allocated power of the range extender according to the required power of the range extender and the preset maximum power of the range extender; Power control is performed on the main range extender and the auxiliary range extender according to the range extender allocation power, so as to improve energy consumption efficiency of the main range extender and the auxiliary range extender.

2. The range extender control method according to claim 1, characterized in that: The step of determining the required power of the range extender according to the total power of the range extender comprises: Determine the required power of the main range extender corresponding to the total power of the range extender in a preset main range extender power table, and determine the difference between the total power of the range extender and the required power of the main range extender as the required power of the auxiliary range extender; When the auxiliary range extender required power is not zero, the main range extender required power and the auxiliary range extender required power are used as the range extender required power; When the auxiliary range extender required power is zero, the main range extender required power is used as the range extender allocated power, and the step of controlling the power of the main range extender and the auxiliary range extender according to the range extender allocated power is performed.

3. The range extender control method according to claim 1, characterized in that: The step of determining the range extender allocated power according to the range extender required power and the preset range extender maximum power comprises: Determine the auxiliary range extender maximum power and the main range extender maximum power in the preset range extender maximum power, and detect whether the auxiliary range extender maximum power is less than the auxiliary range extender required power in the range extender required power; When the auxiliary range extender maximum power is less than the auxiliary range extender required power in the range extender required power, determining a power difference between the auxiliary range extender required power and the auxiliary range extender maximum power, and determining a power sum between the power difference and the main range extender required power in the range extender required power as the main range extender allocated power; When the main range extender allocated power is less than or equal to the main range extender maximum power, the main range extender allocated power and the auxiliary range extender maximum power are used as the range extender allocated power, wherein the main range extender allocated power is used to perform power control on the main range extender, and the auxiliary range extender maximum power is used to perform power control on the auxiliary range extender; When the main range extender allocated power is greater than the main range extender maximum power, the main range extender maximum power and the auxiliary range extender maximum power are used as the range extender allocated power, wherein the main range extender maximum power is used to perform power control on the main range extender.

4. The range extender control method according to claim 3, characterized in that: After the step of detecting whether the maximum power of the auxiliary range extender is less than the auxiliary range extender required power in the range extender required power, the method further comprises: When the auxiliary range extender maximum power is greater than or equal to the auxiliary range extender required power in the range extender required power, the main range extender required power and the auxiliary range extender required power in the range extender required power are used as the range extender allocated power, wherein the main range extender required power is used to perform power control on the main range extender, and the auxiliary range extender required power is used to perform power control on the auxiliary range extender.

5. The range extender control method according to claim 1, characterized in that: Before the step of determining the range extender allocated power according to the range extender required power and the preset range extender maximum power, the method includes: Obtaining a first range extender parameter of the main range extender and a second range extender parameter of the auxiliary range extender, and determining a maximum power of the main range extender corresponding to the first range extender parameter and a maximum power of the auxiliary range extender corresponding to the second range extender parameter in a preset parameter power correspondence table; The main range extender maximum power and the auxiliary range extender maximum power are used as preset range extender maximum power.

6. The range extender control method according to claim 1, characterized in that: The range extender control system includes an information collector, the power parameter information includes chip power, system parameters, driving power and charging power collected by the information collector, and the step of determining the total power of the range extender according to the power parameter information includes: Determine an initial required power in a preset required power table based on at least one of the chip power, the system parameter and the driving power, and determine a system maximum power in a preset maximum power table based on at least one of the chip power and the charging power; When the initial required power is greater than the maximum power of the system, the maximum power of the system is used as the total power of the range extender; When the initial required power is less than or equal to the maximum power of the system, the initial required power is used as the total power of the range extender.

7. The range extender control method according to any one of claims 1 to 6, characterized in that: Before the step of obtaining the power parameter information of the range extender control system, the range extender control method further includes: Acquire a first fault state and a first power generation amount of the first range extender, and a second fault state and a second power generation amount of the second range extender; When the first fault state is a preset fault state and the second fault state is a preset normal state, the second range extender is used as a main range extender and the first range extender is used as an auxiliary range extender; When the first fault state is a preset normal state and the second fault state is a preset normal state, determining a power generation difference between the first power generation and the second power generation; When the power generation difference is greater than a preset first calibration threshold, the second range extender is used as a main range extender and the first range extender is used as an auxiliary range extender; When the power generation difference is less than a preset second calibration threshold, the first range extender is used as a main range extender and the second range extender is used as an auxiliary range extender, wherein the second calibration threshold is less than the first calibration threshold; When the first fault state is a preset normal state and the second fault state is a preset fault state, the first range extender is used as a main range extender and the second range extender is used as an auxiliary range extender.

8. A range extender control system, characterized in that: The range extender control system includes a range extender controller, a main range extender and an auxiliary range extender, wherein the range extender controller is connected to the main range extender and the auxiliary range extender, and the range extender controller includes: A power determination module, used to obtain power parameter information of the range extender control system and determine the total power of the range extender according to the power parameter information; A distribution compensation module, used to determine the required power of the range extender according to the total power of the range extender, and determine the allocated power of the range extender according to the required power of the range extender and a preset maximum power of the range extender; A power control module is used to control the power of the main range extender and the auxiliary range extender according to the power distribution of the range extender, so as to improve the energy consumption efficiency of the main range extender and the auxiliary range extender.

9. A vehicle, characterized in that: The vehicle includes a range extender control system, a processor, and a memory, wherein the memory stores a range extender control method program that can be run on the processor, wherein when the range extender control method program is executed by the processor, the steps of the range extender control method as described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a range extender control method program, wherein when the range extender control method program is executed by a processor, the steps of the range extender control method according to any one of claims 1 to 7 are implemented.

Images