Voltage sampling method and device based on deep integrated controller

Abstract

The invention provides a voltage sampling method and device based on a deep integrated controller, and the method comprises the steps: carrying out the processing of an obtained hardware filtering signal through deep integrated bottom software, and obtaining first voltage sampling data; outputting the first voltage sampling data to power supply application control software; performing software filtering on the first voltage sampling data to obtain second voltage sampling data; the sampling frequency of the first voltage sampling data is higher than that of the second voltage sampling data; and outputting the second voltage sampling data to electric drive application control software. According to the method and the device, integration in a real sense can be realized from the aspect of voltage sampling, so that the cost-reducing and efficiency-increasing effects which should be realized by integration are realized.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicles, and in particular to a voltage sampling method and device based on a deeply integrated controller. Background Art

[0002] At present, all-in-one deeply integrated electric drive is a new generation of electric drive for electric vehicles. Compared with traditional electric drive, it can integrate the power supply into the electric drive, so that the power supply component is physically integrated into the electric drive, and the control software of the two are integrated together. However, in practice, it is found that the deeply integrated electric drive has only completed the relevant work of integration. In the application process, due to the different sampling frequencies of control requirements, the voltage sampling signals required by the power supply and the electric drive still need to be obtained through separate sampling, thus failing to achieve true integration, and thus failing to achieve the cost reduction and efficiency improvement effect that integration should achieve. Summary of the invention

[0003] The purpose of the present application is to provide a voltage sampling method and device based on a deeply integrated controller, which can realize true integration from the perspective of voltage sampling, thereby achieving the cost reduction and efficiency improvement effect that integration should achieve.

[0004] In a first aspect, the present application provides a voltage sampling method based on a deeply integrated controller, wherein the deeply integrated controller is integrated with deeply integrated underlying software, and the method comprises:

[0005] The acquired hardware filtering signal is processed by the deep integration bottom layer software to obtain first voltage sampling data;

[0006] Outputting the first voltage sampling data to power application control software;

[0007] Performing software filtering on the first voltage sampling data to obtain second voltage sampling data; the sampling frequency of the first voltage sampling data is higher than the sampling frequency of the second voltage sampling data;

[0008] The second voltage sampling data is output to the electric drive application control software.

[0009] In the above implementation process, the method can first process the acquired hardware filter signal through the deep integration underlying software to obtain the first voltage sampling data; then, output the first voltage sampling data to the power application control software; then perform software filtering on the first voltage sampling data to obtain the second voltage sampling data; finally, output the second voltage sampling data to the electric drive application control software. It can be seen that this method can achieve true integration from the perspective of voltage sampling, thereby achieving the cost reduction and efficiency improvement effect that integration should achieve.

[0010] Furthermore, the method further comprises:

[0011] Sampling the common sampling source to obtain a voltage sampling signal;

[0012] The voltage sampling signal is subjected to hardware filtering to obtain a hardware filtered signal.

[0013] Furthermore, the processing of the acquired hardware filter signal by the deep integration bottom layer software to obtain the first voltage sampling data includes:

[0014] The acquired hardware filtering signal is subjected to analog-to-digital conversion and data processing by the deeply integrated underlying software to obtain first voltage sampling data.

[0015] Further, performing software filtering on the first voltage sampling data to obtain second voltage sampling data includes:

[0016] Obtaining a target sampling frequency for the software filtering;

[0017] Performing software filtering on the first voltage sampling data based on the target sampling frequency to obtain filtered data;

[0018] The filtered data is resampled to obtain second voltage sampling data.

[0019] A second aspect of the present application provides a voltage sampling device based on a deep integration controller, wherein the deep integration controller is integrated with deep integration underlying software, and the voltage sampling device comprises:

[0020] A processing unit, configured to process the acquired hardware filtering signal through the deep integration bottom layer software to obtain first voltage sampling data;

[0021] A first output unit, used for outputting the first voltage sampling data to the power application control software;

[0022] a software filtering unit, configured to perform software filtering on the first voltage sampling data to obtain second voltage sampling data; wherein a sampling frequency of the first voltage sampling data is higher than a sampling frequency of the second voltage sampling data;

[0023] The second output unit is used to output the second voltage sampling data to the electric drive application control software.

[0024] Furthermore, the voltage sampling device further includes:

[0025] A sampling unit, used for sampling a common sampling source to obtain a voltage sampling signal;

[0026] The hardware filtering unit is used to perform hardware filtering on the voltage sampling signal to obtain a hardware filtered signal.

[0027] Furthermore, the processing unit is specifically used to perform analog-to-digital conversion and data processing on the acquired hardware filtering signal through the deeply integrated underlying software to obtain the first voltage sampling data.

[0028] Furthermore, the software filtering unit comprises:

[0029] An acquisition subunit, used for acquiring a target sampling frequency of the software filtering;

[0030] a software filtering subunit, configured to perform software filtering on the first voltage sampling data based on the target sampling frequency to obtain filtered data;

[0031] The resampling subunit is used to resample the filtered data to obtain second voltage sampling data.

[0032] A third aspect of the present application provides an electronic device, including a memory and a processor, wherein the memory is used to store a computer program, and the processor runs the computer program to enable the electronic device to perform the voltage sampling method based on a deeply integrated controller as described in any one of the first aspect of the present application.

[0033] A fourth aspect of the present application provides a computer-readable storage medium storing computer program instructions. When the computer program instructions are read and executed by a processor, the voltage sampling method based on a deeply integrated controller as described in any one of the first aspect of the present application is executed.

[0034] The beneficial effect of the present application is that after the software of the electric drive and the power supply are integrated together, the method and the device can replace one of the original two hardware filter circuits by adding software filtering and modulation, thereby solving the problem caused by the inconsistent control frequency of the power supply application and the electric drive application, thereby achieving the effect of reducing costs and enhancing integration advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 A schematic diagram of a flow chart of a voltage sampling method based on a deeply integrated controller provided in an embodiment of the present application;

[0037] Figure 2 A schematic flow chart of another voltage sampling method based on a deeply integrated controller provided in an embodiment of the present application;

[0038] Figure 3 A flowchart of a voltage sampling method provided in an embodiment of the present application;

[0039] Figure 4 A flowchart of an existing voltage sampling method of a deep integrated controller provided in an embodiment of the present application;

[0040] Figure 5 A flowchart of a voltage sampling method based on a deeply integrated controller provided in an embodiment of the present application;

[0041] Figure 6 A schematic diagram of the structure of a voltage sampling device based on a deeply integrated controller provided in an embodiment of the present application;

[0042] Figure 7 A schematic diagram of the structure of another voltage sampling device based on a deeply integrated controller provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0044] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0045] Example 1

[0046] Please see Figure 1 , Figure 1 A flow chart of a voltage sampling method based on a deep integration controller provided in this embodiment. The deep integration controller is integrated with deep integration underlying software, and the voltage sampling method based on the deep integration controller includes:

[0047] S101. Process the acquired hardware filtering signal by deeply integrating the underlying software to obtain first voltage sampling data.

[0048] S102: Output first voltage sampling data to power application control software.

[0049] S103 , performing software filtering on the first voltage sampling data to obtain second voltage sampling data; the sampling frequency of the first voltage sampling data is higher than the sampling frequency of the second voltage sampling data.

[0050] S104, outputting the second voltage sampling data to the electric drive application control software.

[0051] In this embodiment, the all-in-one electric drive also integrates the power supply into the electric drive, which is divided into physical integration and deep integration according to the degree of integration. Specifically, physical integration only physically integrates the power supply component into the electric drive, and its controller software still runs independently. In addition to physically integrating the power supply hardware with the electric drive, deep integration also integrates the control software of the two together.

[0052] In this embodiment, the execution subject of the method may be a computing device such as a computer or a server, and no limitation is made in this embodiment.

[0053] In this embodiment, the execution subject of the method may also be a smart device such as a smart phone, a tablet computer, etc., which is not limited in this embodiment.

[0054] It can be seen that the implementation of the voltage sampling method based on the deeply integrated controller described in this embodiment can achieve true integration from the perspective of voltage sampling, thereby achieving the effect of reducing costs and increasing efficiency that integration should achieve.

[0055] Example 2

[0056] Please see Figure 2 , Figure 2 A flow chart of a voltage sampling method based on a deep integration controller provided in this embodiment. The deep integration controller is integrated with deep integration underlying software, and the voltage sampling method based on the deep integration controller includes:

[0057] S201 . Sample a common sampling source to obtain a voltage sampling signal.

[0058] S202 , performing hardware filtering on the voltage sampling signal to obtain a hardware filtered signal.

[0059] In this embodiment, the method can filter the received voltage sampling signal to remove high-frequency noise and interference in the signal to ensure the accuracy and stability of the signal. At the same time, according to the amplitude range of the sampling signal, the method can also amplify or attenuate the signal to meet the requirements of the subsequent processing circuit.

[0060] In this embodiment, in the deeply integrated controller, the control software of the electric drive and the power supply are integrated together, and the two share a sampling source when acquiring the voltage sampling signal. However, since the control frequencies of the two are inconsistent, it is not possible to directly use only one sampling. The specific reason is that when the sampling frequency and the control frequency are not integer multiples, the control accuracy will be affected, so two voltage sampling channels are still required.

[0061] Please see Figure 3 , Figure 3 The flowchart of the traditional voltage sampling method is shown in FIG. Figure 4 , Figure 4 A flow chart of an existing voltage sampling method for a deeply integrated controller is shown.

[0062] S203 , performing analog-to-digital conversion and data processing on the hardware filtering signal by deeply integrating the underlying software to obtain first voltage sampling data.

[0063] In this embodiment, the method can perform necessary processing on the hardware filter signal, such as analog-to-digital conversion, calculation, calibration, analysis, etc., to generate accurate data that can be used for electric drive control. At the same time, the method can further package the processed data into an appropriate format so that it can be transmitted to the corresponding application software through the communication interface.

[0064] S204: Output the first voltage sampling data to the power application control software.

[0065] In this embodiment, the method can achieve the effect of reducing costs by replacing one of the filters with a software filter. At the same time, although the control frequencies of the electric drive and power supply applications are different after integration, the power supply is high frequency and the electric drive is low frequency. On this basis, although the voltage sampling signal frequency needs to match the control frequency and cannot directly share the sampling filter circuit, since the two can interact directly through the bottom layer after integration without going through the bus, the method can replace one of the hardware filter circuits with software filtering.

[0066] S205: Obtain the target sampling frequency of software filtering.

[0067] S206 . Perform software filtering on the first voltage sampling data based on the target sampling frequency to obtain filtered data.

[0068] In this embodiment, the method can filter and sample the signal based on the Nyquist-Shannon sampling theorem, thereby avoiding the occurrence of aliasing.

[0069] S207: Resample the filtered data to obtain second voltage sampling data.

[0070] In this embodiment, the sampling frequency of the first voltage sampling data is higher than the sampling frequency of the second voltage sampling data.

[0071] In this embodiment, because signal distortion may occur if the sampling frequency is lower than the control frequency, the method chooses to retain the hardware sampling circuit of the power supply part to ensure the reliability of the signal, and modulates a low-frequency sampling signal by adding software filtering in the underlying transmission task to transmit it to the low-frequency electric drive control application software for use.

[0072] S208 , outputting the second voltage sampling data to the electric drive application control software.

[0073] Please see Figure 5 , Figure 5 The flowchart of the voltage sampling method proposed in this application is shown.

[0074] In this embodiment, the execution subject of the method may be a computing device such as a computer or a server, and no limitation is made in this embodiment.

[0075] In this embodiment, the execution subject of the method may also be a smart device such as a smart phone, a tablet computer, etc., which is not limited in this embodiment.

[0076] It can be seen that the implementation of the voltage sampling method based on the deeply integrated controller described in this embodiment can achieve true integration from the perspective of voltage sampling, thereby achieving the effect of reducing costs and increasing efficiency that integration should achieve.

[0077] Example 3

[0078] Please see Figure 3 , Figure 3 The schematic diagram of the structure of a voltage sampling device based on a deep integrated controller provided in this embodiment. Figure 3 As shown, the deeply integrated controller is integrated with deeply integrated underlying software, and the voltage sampling device includes:

[0079] The processing unit 310 is used to process the acquired hardware filtering signal through deep integration of underlying software to obtain first voltage sampling data;

[0080] A first output unit 320, used to output first voltage sampling data to the power application control software;

[0081] The software filtering unit 330 is used to perform software filtering on the first voltage sampling data to obtain second voltage sampling data; the sampling frequency of the first voltage sampling data is higher than the sampling frequency of the second voltage sampling data;

[0082] The second output unit 340 is used to output the second voltage sampling data to the electric drive application control software.

[0083] In this embodiment, the explanation of the voltage sampling device based on the deeply integrated controller can refer to the description in Embodiment 1 or Embodiment 2, and will not be further elaborated in this embodiment.

[0084] It can be seen that the implementation of the voltage sampling device based on the deeply integrated controller described in this embodiment can achieve true integration from the perspective of voltage sampling, thereby achieving the effect of reducing costs and increasing efficiency that integration should achieve.

[0085] Example 4

[0086] Please see Figure 4 , Figure 4 The schematic diagram of the structure of a voltage sampling device based on a deep integrated controller provided in this embodiment. Figure 4 As shown, the deeply integrated controller is integrated with deeply integrated underlying software, and the voltage sampling device includes:

[0087] The processing unit 310 is used to process the acquired hardware filtering signal through deep integration of underlying software to obtain first voltage sampling data;

[0088] A first output unit 320, used to output first voltage sampling data to the power application control software;

[0089] The software filtering unit 330 is used to perform software filtering on the first voltage sampling data to obtain second voltage sampling data; the sampling frequency of the first voltage sampling data is higher than the sampling frequency of the second voltage sampling data;

[0090] The second output unit 340 is used to output the second voltage sampling data to the electric drive application control software.

[0091] As an optional implementation, the voltage sampling device further includes:

[0092] The sampling unit 350 is used to sample the common sampling source to obtain a voltage sampling signal;

[0093] The hardware filtering unit 360 is used to perform hardware filtering on the voltage sampling signal to obtain a hardware filtered signal.

[0094] As an optional implementation, the processing unit 310 is specifically configured to perform analog-to-digital conversion and data processing on the acquired hardware filtering signal by deeply integrating underlying software to obtain first voltage sampling data.

[0095] As an optional implementation, the software filtering unit 330 includes:

[0096] An acquisition subunit 331 is used to acquire a target sampling frequency of software filtering;

[0097] The software filtering subunit 332 is used to perform software filtering on the first voltage sampling data based on the target sampling frequency to obtain filtered data;

[0098] The resampling subunit 333 is used to resample the filtered data to obtain second voltage sampling data.

[0099] In this embodiment, the explanation of the voltage sampling device based on the deeply integrated controller can refer to the description in Embodiment 1 or Embodiment 2, and will not be further elaborated in this embodiment.

[0100] It can be seen that the implementation of the voltage sampling device based on the deeply integrated controller described in this embodiment can achieve true integration from the perspective of voltage sampling, thereby achieving the effect of reducing costs and increasing efficiency that integration should achieve.

[0101] An embodiment of the present application provides an electronic device, including a memory and a processor, wherein the memory is used to store a computer program, and the processor runs the computer program to enable the electronic device to execute the voltage sampling method based on a deep integrated controller in Embodiment 1 or Embodiment 2 of the present application.

[0102] An embodiment of the present application provides a computer-readable storage medium storing computer program instructions. When the computer program instructions are read and executed by a processor, the voltage sampling method based on a deep integrated controller in Embodiment 1 or Embodiment 2 of the present application is executed.

[0103] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0104] In addition, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0105] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0106] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0107] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the 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.

[0108] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A voltage sampling method based on a deeply integrated controller, characterized in that: The deep integration controller is integrated with deep integration underlying software, and the method comprises: The acquired hardware filtering signal is processed by the deep integration bottom layer software to obtain first voltage sampling data; Outputting the first voltage sampling data to power application control software; Performing software filtering on the first voltage sampling data to obtain second voltage sampling data; the sampling frequency of the first voltage sampling data is higher than the sampling frequency of the second voltage sampling data; The second voltage sampling data is output to the electric drive application control software.

2. The voltage sampling method based on a deeply integrated controller according to claim 1, characterized in that: The method further comprises: Sampling the common sampling source to obtain a voltage sampling signal; The voltage sampling signal is subjected to hardware filtering to obtain a hardware filtered signal.

3. The voltage sampling method based on a deeply integrated controller according to claim 1, characterized in that: The step of processing the acquired hardware filter signal by the deep integration bottom layer software to obtain the first voltage sampling data includes: The acquired hardware filtering signal is subjected to analog-to-digital conversion and data processing by the deeply integrated underlying software to obtain first voltage sampling data.

4. The voltage sampling method based on a deeply integrated controller according to claim 1, characterized in that: The performing software filtering on the first voltage sampling data to obtain second voltage sampling data includes: Obtaining a target sampling frequency for the software filtering; Performing software filtering on the first voltage sampling data based on the target sampling frequency to obtain filtered data; The filtered data is resampled to obtain second voltage sampling data.

5. A voltage sampling device based on a deep integrated controller, characterized in that: The deep integration controller is integrated with deep integration underlying software, and the voltage sampling device includes: A processing unit, configured to process the acquired hardware filtering signal through the deep integration bottom layer software to obtain first voltage sampling data; A first output unit, used for outputting the first voltage sampling data to the power application control software; a software filtering unit, configured to perform software filtering on the first voltage sampling data to obtain second voltage sampling data; wherein a sampling frequency of the first voltage sampling data is higher than a sampling frequency of the second voltage sampling data; The second output unit is used to output the second voltage sampling data to the electric drive application control software.

6. The voltage sampling device based on a deeply integrated controller according to claim 5, characterized in that: The voltage sampling device also includes: A sampling unit, used for sampling a common sampling source to obtain a voltage sampling signal; The hardware filtering unit is used to perform hardware filtering on the voltage sampling signal to obtain a hardware filtered signal.

7. The voltage sampling device based on a deeply integrated controller according to claim 5, characterized in that: The processing unit is specifically used to perform analog-to-digital conversion and data processing on the acquired hardware filtering signal through the deeply integrated underlying software to obtain the first voltage sampling data.

8. The voltage sampling device based on a deeply integrated controller according to claim 5, characterized in that: The software filtering unit comprises: An acquisition subunit, used for acquiring a target sampling frequency of the software filtering; a software filtering subunit, configured to perform software filtering on the first voltage sampling data based on the target sampling frequency to obtain filtered data; The resampling subunit is used to resample the filtered data to obtain second voltage sampling data.

9. An electronic device, characterized in that: The electronic device comprises a memory and a processor, the memory is used to store a computer program, and the processor runs the computer program to enable the electronic device to perform the voltage sampling method based on a deeply integrated controller according to any one of claims 1 to 4.

10. A readable storage medium, characterized in that: The readable storage medium stores computer program instructions, and when the computer program instructions are read and executed by a processor, the voltage sampling method based on a deeply integrated controller according to any one of claims 1 to 4 is executed.

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