CN117852459A - Determination method, determination device, medium, control method, device, and automobile - Google Patents
Determination method, determination device, medium, control method, device, and automobile Download PDFInfo
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Abstract
The present application provides a power logic determination method, a power logic determination method apparatus, a computer-readable storage medium, a control method, a computer device, and an automobile for a circuit, wherein the circuit includes a plurality of single-function power devices and a control device for the power devices, and the power supply determination method includes the steps of: constructing a data set based on configuration parameters of all power devices and control devices; determining a logic relationship of the power devices based on the voltage configuration parameters of the power devices in the data set, wherein the logic relationship represents a connection structure between the power devices; the power-up timing of the power devices is determined based on the functional configuration parameters of the power devices and the control devices in the data set and the determined logic relationship. By means of the power logic determining method, the power-on time sequence of each power device can be obtained in the power design stage, and therefore the power design scheme can be adjusted in time.
Description
Technical Field
The present application relates to a power logic determination method for a circuit, a power logic determination apparatus, a computer-readable storage medium for performing such a power logic determination method, and a control method for each power device in a circuit, a computer device, and an automobile including such a computer device.
Background
For the power supply design of the advanced auxiliary driving system of the intelligent automobile, instead of the integrated power supply design, a combination system of a plurality of single-function power supply devices (so-called PMIC, power Management Integrated Circuit, power management integrated circuits) may be employed in order to secure operational safety and reliability. A single-function power supply device can be understood here in a similar manner to the concept of a discrete device, which can be used only for supplying one module in a domain controller and for realizing a function, for example, which is used only as a voltage transformation circuit or only as a switching circuit.
The control logic of multiple single-function power devices is more complex, as the integrated functions of the served controller are more complex. The circuit is designed for this combination of single-function power devices and there is no universal test standard and test platform, mainly because the types and manufacturers of the power devices may be different and it is difficult to form a unified test pattern or test model. The simulation and inspection of power supply designs typically rely on manual labor, are labor intensive and are prone to missed and false detection.
It should be noted that what is described herein merely provides background information related to the present disclosure and is not necessarily prior art.
Disclosure of Invention
According to various aspects, it is an object of the present application to provide an improved power logic determination method for a circuit, a power logic determination apparatus and a computer-readable storage medium for performing such a power logic determination method, and a control method, a computer device and an automobile based on the power-on timing determined in this way.
In addition, the present application aims to solve or alleviate other technical problems existing in the prior art.
The present application solves the above-mentioned problems by providing a power logic determination method for a circuit, in particular, a circuit comprising a plurality of single-function power supply devices and a control device for the power supply devices, wherein the method comprises the steps of:
constructing a data set based on configuration parameters of all power devices and control devices;
determining a logic relationship of the power devices based on the voltage configuration parameters of the power devices in the data set, wherein the logic relationship represents a connection structure between the power devices;
the power-up timing of the power devices is determined based on the functional configuration parameters of the power devices and the control devices in the data set and the determined logic relationship.
In the power logic determination method set forth in accordance with the first aspect of the present application, optionally, the voltage configuration parameters of the power supply device include input configuration network information and output configuration network information,
accordingly, the determining the logical relationship of the power supply device comprises the steps of:
traversing the input configuration network information of each power supply device in the data set to determine and number the primary power supply device;
circularly determining and numbering a next-stage power supply device with the same input configuration network information as the output configuration network information of the previous-stage power supply device;
based on the numbers of the power devices, the logic relationship of the power devices is determined.
In the power logic determination method set forth in accordance with the first aspect of the present application, optionally, the function configuration parameters of the power device include a self-delay parameter and an enable controlled parameter, wherein the self-delay parameter includes a self-delay duration during which an enable signal is received from an EN pin of the power device to a PG pin issues a power state signal, and the enable controlled parameter depends on a corresponding control device and is used to characterize the control parameter for the EN pin of the power device.
In the power logic determining method according to the first aspect of the present application, optionally, the determining a power-on timing of the power device includes the following steps:
distributing node attribute information to the power supply device based on the determined logic relationship;
determining a control device associated with an EN pin of a power device based on node attribute information of the power device, an enable controlled parameter, and a configuration parameter of the control device and calculating an enable control delay period dependent on the control device;
determining the sum of the self delay time length of the power supply device and the corresponding enabling control delay time length as the total delay time length of the power supply device;
and determining the power-on time sequence of each power device based on the total delay time length of each power device.
In the power logic determination method set forth in accordance with the first aspect of the present application, optionally, the enable controlled parameter includes name information and type information of a control device for the power supply device and name information of a control device for receiving a power supply state signal of the power supply device.
In the power logic determination method according to the first aspect of the present application, optionally, the control device includes a control device of a MCU type, a control device of an SoC type, or a control device of a sequencer type, and accordingly, the enable control delay period is calculated based on the type of the relevant control device.
According to a second aspect of the present application, there is also provided a power logic determination apparatus, which is operable to perform the above power logic determination method, comprising:
a data set construction module configured to construct a data set based on configuration parameters of all power devices and control devices;
a logic relationship determination module configured to determine a logic relationship of the power devices based on the voltage configuration parameters of the respective power devices in the data set, the logic relationship representing a connection structure between the power devices;
a power-up timing determination module configured to determine a power-up timing of the power devices based on the functional configuration parameters of the respective power devices and control devices in the data set and the determined logic relationship.
According to a third aspect of the present application, there is also provided a computer readable storage medium having stored thereon a computer program, wherein the computer program, when executed by a processor, implements the above-described power logic determination method for a circuit.
According to a fourth aspect of the present application, a control method for each power device in a circuit is further provided, wherein a stored power-on time sequence of the power device is invoked, and the working state of each power device is controlled based on the power-on time sequence, and the power-on time sequence is determined according to the power logic determination method.
According to a fifth aspect of the present application, there is also provided a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the above-mentioned control method when executing the computer program.
According to a sixth aspect of the present application, there is also presented an automobile comprising the computer device described above, said computer device being part of an automobile control system.
By means of the power logic determining method, power-on time sequence of each power device can be obtained in a power design stage, so that a power design scheme can be adjusted in time.
Drawings
The above and other features of the present application will become apparent with reference to the drawings, wherein,
FIG. 1 illustrates in a modular view a circuit to which a power logic determination method according to the present application is applicable;
FIG. 2 illustrates one embodiment of a power logic determination method according to the present application;
FIG. 3 shows a modular illustration of a power logic determination apparatus according to the present application;
fig. 4 shows an embodiment of a control method for power supply devices in a circuit according to the present application.
Detailed Description
It is easy to understand that, according to the technical solution of the present application, those skilled in the art may propose various structural manners and implementation manners that may be replaced with each other without changing the true spirit of the present application. Accordingly, the following detailed description and drawings are merely illustrative of the present application and are not intended to be exhaustive or to limit or restrict the application to the precise forms disclosed.
Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," "third," and the like are used for descriptive and distinguishing purposes only and are not to be construed as indicating or implying a relative importance of the corresponding components.
First, a circuit to which the power logic determination method according to the present application is applied will be described with reference to fig. 1, in which a circuit that supplies power to the auxiliary driving domain controller is taken as an example. The circuit has a plurality of (10 in the drawings by way of example) single-function Power supply devices (i.e., PMIC1, PMIC2, … …, PMIC 10) and a control device for the Power supply devices, the control device being configured to transmit an Enable signal to an Enable pin (which may be simply referred to herein as EN pin, en=enable) of the Power supply device, and the Power supply device outputting a Power supply status signal (i.e., PG signal) through a Power supply status output pin (which may be simply referred to herein as PG pin, pg=power Good) thereof. Each single-function power supply device is used for respectively supplying power to each function module of the auxiliary driving domain controller and realizing corresponding specific functions.
For example, the power supply device may be used as a voltage conversion circuit, or as a switching circuit, or as a reset circuit. Here, it can be understood that a single-function power supply device is advantageous in terms of heat generation and operational reliability as compared to a centralized PMIC of the auxiliary driving domain controller, for example, if one of the power supply devices fails, no malfunction of the remaining control modules of the auxiliary driving domain controller is caused. It should be noted here that the applicable circuit shown in fig. 1 should not be interpreted restrictively, the number of PMICs thereof being variable and the controllers served being diverse and not limited to this auxiliary driving domain controller.
Next, a power logic determination method according to the present application will be explained with reference to fig. 2. By means of this power logic determination method, the power-up timing of the individual power supply devices can be obtained when they are not fitted to the control system, i.e. during the power supply design phase, so that the power supply design can be adjusted in time. For example, if it is determined that the existing power supply design cannot meet the control requirement according to the determined power-on timing sequence, the adjustment can be made in time.
In some embodiments of the present application, such a power logic determination method mainly includes:
step S1: constructing a data set based on configuration parameters of all power devices and control devices;
step S2: determining a logic relationship of the power devices based on the voltage configuration parameters of each power device in the data set;
step S3: the power-up timing of the power devices is determined based on the functional configuration parameters of the power devices and the control devices in the data set and the determined logic relationship.
It should be noted that, the step names mentioned in the present specification (and also mentioned below) are only used for distinguishing between steps and facilitating reference to steps, and do not represent a sequential relationship between steps. In the event of no apparent conflict, the steps may be performed in a variety of sequences or concurrently unless specifically indicated.
The data set can be presented in tabular form and the power logic determination method can be performed in a VB environment (vb=visual Basic), where a relevant calculation model is built according to the main concepts of the present application to enable logic simulation and calculation of the power devices, for example. Or it is also possible to represent the configuration parameters of the individual power supply devices or control devices individually as a number of groups and integrate them into a data set which can be saved on a memory for later recall.
Illustratively, the configuration parameters of the power device may include: name information of the power supply device (which may be represented by a letter or simply as a number), function type information (e.g. a switching function, a transformation function, a reset function, which can be represented in a simple manner by different numbers when constructing the data set), type or name information of the corresponding control device, and operating characteristic parameters (e.g. voltage configuration parameters) determined by the structure or pin configuration of the power supply device, etc. In some embodiments of the present application, the voltage configuration parameters of each power device include input configuration network information and output configuration network information, or alternatively can also include an input configuration voltage, an output configuration voltage, where the two configuration network information are used to characterize the network to which the power device is connected.
The logic relationship of the power supply devices is used to represent the connection structure between the power supply devices, and specifically refers to the upper-lower relationship of the power supply devices, that is, refers to the sequence in which current flows on the power supply devices when the circuit is turned on. Alternatively, the logical relationship of the power devices may be determined by performing the steps of:
step S21: traversing the input configuration network information of each power supply device in the data set to determine and number the primary power supply device;
step S22: circularly determining and numbering a next-stage power supply device with the same input configuration network information as the output configuration network information of the previous-stage power supply device;
step S23: based on the numbers of the power devices, the logic relationship of the power devices is determined.
Specifically, when determining the logical relationship of the power supply devices based on the VB environment, the input configuration network information of all the power supply devices is traversed to find the primary power supply device and set its power supply class number to 1. Then, the input configuration network information and the output configuration network information of the unnumbered other power supply devices are traversed, the next power supply device is found and determined according to the principle that the output configuration network information of the previous power supply device is the input configuration network information of the next power supply device, and the power supply grade number of the next power supply device is increased by 1. It is also possible here to determine the upper and lower relationships of the power supply devices by integrating the input configuration voltage, the output configuration voltage, the input configuration network information, and the output configuration network information in order to further improve the determination accuracy and the calculation redundancy of the power supply logic, wherein the output configuration voltage of the upper stage power supply device is equal to the input configuration voltage of the lower stage power supply device, and the output configuration network information of the upper stage power supply device is the input configuration network information of the lower stage power supply device. And then judging whether the determined next-stage power supply device is the last stage, if so, ending the traversal of the data set, otherwise, circularly searching the next-stage power supply device. And finally, determining the upper and lower level relation among the power supplies according to the power supply grade numbers of the power supply devices. The intervention of two parameters, namely the input configuration network information and the output configuration network information, can enable the determination of the power logic relationship to be more accurate. For example, the logical relationship (i.e., the upper and lower relationships) of each power supply device can be represented in the form of a power supply tree.
In some embodiments of the present application, the functional configuration parameters of each power device may include a self-delay parameter and an enable controlled parameter, where the self-delay parameter includes a self-delay duration during which an enable signal is received from an EN pin of the power device to a PG signal is sent from a PG pin. Here, the self delay period of the power supply device includes two parts, one of which is a delay from when the EN signal is received to when the steady output is reached and the other of which is a delay from when the steady output is reached to when the PG signal is emitted.
The enable controlled parameter depends on the respective control device and characterizes the control parameter for the EN pin of the power supply device. The enable controlled parameter comprises a delay period determined by an enable signal issued by a control device of the power supply device, which delay period can be for signal noise reduction purposes or for the purpose of ensuring a correct switching of the pin state.
In some embodiments of the present application, the enable controlled parameters associated with the EN pin of the power supply device include, illustratively, name information and type information of the control device for the power supply device and name information of the control device for receiving the PG signal of the power supply device, such information being also capable of being represented in the form of characters, for example, in the VB environment.
In some embodiments of the present application, the power-up timing of the power supply device may be determined by performing the following steps:
step S31: assigning node attribute information to the power devices based on the determined logical relationship, wherein the node attribute information may characterize a primary node, an intermediate node, and a final node, for example;
step S32: determining a control device associated with an EN pin of a power device based on node attribute information of the power device, an enable controlled parameter, and a configuration parameter of the control device and calculating an enable control delay period dependent on the control device;
step S33: determining the sum of the self delay time length of the power supply device and the corresponding enabling control delay time length as the total delay time length of the power supply device;
step S34: and determining the power-on time sequence of each power device based on the total delay time length of each power device.
The delay of the power supply device itself and the delay caused by the controller are taken into account here, and thus the power-up timing obtained in this way is relatively accurate.
According to the present application, the above-mentioned enabling delay period is determined in different ways for different types of control devices. Here, the control device is a control device of the type of MCU (Microcontroller Unit, micro control unit), a control device of the type of SoC (System on Chip), and a control device of the type of SEQ (sequencer).
For example, if the node attribute information of the power supply device is an intermediate node and the control device for the current power supply device is an MCU or SoC, the corresponding fixed value enable control delay period may be added to the own delay period of the power supply device and the sum may be determined as its total delay period.
In contrast, if the node attribute information of the power supply device is an intermediate node and the controller for the current power supply device is SEQ, the enable control delay period (which may refer to the product of the former two herein) may be determined according to the order in which the EN pins are located and the delay period between adjacent switches, which is, for example, a fixed value.
In addition, after determining the power-up timing, the corresponding power-up timing can be generated separately for the operating mode of the served controller, e.g., the auxiliary drive domain controller, for multi-dimensional evaluation of the power supply design. The power-on time sequence under different working modes can be realized in a weighted calculation mode, wherein weights are distributed to the total delay time length of each power supply device according to the on-off state of each power supply device under the working modes, and the weighted calculation is performed.
In summary, by means of the power logic determination method according to the present application, the power-on timing of each power device can be determined in the power design stage, so that the power design scheme can be adjusted in time. In some embodiments of the present application, input and output network configuration information is introduced when determining the upper and lower relationships of each power device, so that the calculation accuracy can be improved. In some embodiments of the present application, different delay time length determination methods are given for different types of control devices for power supply devices, whereby the power supply logic determination method has a better suitability.
According to a second aspect of the present application, there is also presented a power logic determination device for performing such a power logic determination method, which is shown in fig. 3 by a modularized view. Specifically, the power logic determination apparatus 100 includes:
a data set construction module 110 configured to construct a data set based on configuration parameters of all power devices and control devices;
a logic relationship determination module 120 configured to determine a logic relationship of the power devices based on the voltage configuration parameters of the respective power devices in the data set, the logic relationship representing a connection structure between the power devices;
a power-up timing determination module 130 configured to determine a power-up timing of the power devices based on the functional configuration parameters of the respective power devices and control devices in the data set and the determined logic relationship.
In this context, the features and advantages already described with respect to the power logic determination method are derived in particular with respect to the power logic determination device according to the present application, and the description with respect to the power logic determination method according to the present application can be correspondingly referred to.
According to a third aspect of the present application, there is also provided a computer readable storage medium having stored thereon a computer program, wherein the computer program, when executed by a processor, implements the power logic determination method for a circuit set forth above. References herein to computer-readable storage media include various types of computer storage media, and can be any available media that can be accessed by a general purpose or special purpose computer. By way of example, a computer-readable storage medium may comprise a RAM, ROM, EPROM, E PROM, register, hard disk, removable disk, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage device, or any other temporary or non-temporary medium that can be used to carry or store desired program code elements in the form of instructions or data structures and that can be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Regarding the configuration scheme of the computer-readable storage medium according to the present application, reference may be made to the explanation made for the power logic determination method according to the present application.
According to a fourth aspect of the present application, there is also presented a control method for each power supply device in a circuit, one embodiment of which is shown in fig. 4 and comprises the steps of:
step A: invoking a stored power-on sequence of the power device;
and (B) step (B): and controlling the working state of each power supply device based on the power-on time sequence, wherein the power-on time sequence is determined according to the power logic determining method of any one or more of the embodiments. The power-on time sequence determined by the method can be used as a control basis for the on-off of each power supply device, or can be used as a basis for judging whether the on-off of each power supply device is correct. In this context, the features and advantages already described in relation to the power logic determination method are derived in particular in relation to the control method according to the present application, and the description of the power logic determination method according to the present application is correspondingly referred to.
According to a fifth aspect of the present application, there is also provided a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the control method for the power devices set forth above when the computer program is executed by the processor. The features and advantages already described with respect to the power logic determination method or the control method for the power supply device are derived here in particular in the case of the computer device according to the present application, and reference is made accordingly to the description thereof.
According to a sixth aspect of the present application, there is also presented an automobile comprising the computer device set forth above, said computer device being part of an automobile control system. In this context, the features and advantages already described with respect to the power logic determination method or the control method for the power supply device are derived in particular in the case of the motor vehicle according to the present application, and reference is made accordingly to the description thereof.
It should be understood that all of the above preferred embodiments are exemplary and not limiting, and that various modifications or variations to the specific embodiments described above, which are within the spirit of the present application, would be within the scope of legal protection given to this application by those skilled in the art.
Claims (11)
1. A power logic determination method for a circuit including a plurality of single-function power devices and a control device for the power devices, comprising the steps of:
constructing a data set based on configuration parameters of all power devices and control devices;
determining a logic relationship of the power devices based on the voltage configuration parameters of the power devices in the data set, wherein the logic relationship represents a connection structure between the power devices;
the power-up timing of the power devices is determined based on the functional configuration parameters of the power devices and the control devices in the data set and the determined logic relationship.
2. The power logic determination method of claim 1, wherein the voltage configuration parameters of the power device include input configuration network information and output configuration network information,
accordingly, the determining the logical relationship of the power supply device comprises the steps of:
traversing the input configuration network information of each power supply device in the data set to determine and number the primary power supply device;
circularly determining and numbering a next-stage power supply device with the same input configuration network information as the output configuration network information of the previous-stage power supply device;
based on the numbers of the power devices, the logic relationship of the power devices is determined.
3. The power logic determination method of claim 1, wherein the functional configuration parameters of the power device include self-delay parameters including self-delay time lengths during which an enable signal is received from an EN pin of the power device to a PG pin issuing a power state signal, and enable-controlled parameters depending on the respective control device and used to characterize the control parameters for the EN pin of the power device.
4. The power logic determination method of claim 3, wherein determining the power-up timing of the power device comprises the steps of:
distributing node attribute information to the power supply device based on the determined logic relationship;
determining a control device associated with an EN pin of a power device based on node attribute information of the power device, an enable controlled parameter, and a configuration parameter of the control device and calculating an enable control delay period dependent on the control device;
determining the sum of the self delay time length of the power supply device and the corresponding enabling control delay time length as the total delay time length of the power supply device;
and determining the power-on time sequence of each power device based on the total delay time length of each power device.
5. A power logic determination method according to claim 3, wherein the enabling controlled parameters include name information and type information of a control device for the power supply device and name information of a control device for receiving a power supply status signal of the power supply device.
6. The power logic determination method according to claim 4, wherein the control device includes a MCU-type control device, a SoC-type control device, or a sequencer-type control device, and the enable control delay period is calculated based on the type of the relevant control device, accordingly.
7. A power logic determination apparatus operable to perform the power logic determination method of any one of claims 1 to 6, comprising:
a data set construction module configured to construct a data set based on configuration parameters of all power devices and control devices;
a logic relationship determination module configured to determine a logic relationship of the power devices based on the voltage configuration parameters of the respective power devices in the data set, the logic relationship representing a connection structure between the power devices;
a power-up timing determination module configured to determine a power-up timing of the power devices based on the functional configuration parameters of the respective power devices and control devices in the data set and the determined logic relationship.
8. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the power logic determination method for a circuit according to any one of claims 1 to 6.
9. A control method for each power supply device in a circuit, characterized by calling a stored power-up timing of the power supply device and controlling an operation state of each power supply device based on the power-up timing, wherein the power-up timing is determined according to the power logic determination method according to any one of claims 1 to 6.
10. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the control method according to claim 9 when executing the computer program.
11. An automobile, characterized in that it comprises a computer device according to claim 10, which is part of an automobile control system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311767876.4A CN117852459A (en) | 2023-12-20 | 2023-12-20 | Determination method, determination device, medium, control method, device, and automobile |
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| CN202311767876.4A CN117852459A (en) | 2023-12-20 | 2023-12-20 | Determination method, determination device, medium, control method, device, and automobile |
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