CN117818491A - Control method and device of vehicle-mounted charger, storage medium and vehicle-mounted charger - Google Patents
Control method and device of vehicle-mounted charger, storage medium and vehicle-mounted charger Download PDFInfo
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- CN117818491A CN117818491A CN202311872536.8A CN202311872536A CN117818491A CN 117818491 A CN117818491 A CN 117818491A CN 202311872536 A CN202311872536 A CN 202311872536A CN 117818491 A CN117818491 A CN 117818491A
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Abstract
The embodiment of the application provides a control method and device of an on-vehicle charger, a storage medium and the on-vehicle charger, wherein the on-vehicle charger comprises a panel and an adsorption force supply device, a device to be charged is placed on the panel, the adsorption force supply device is used for providing adsorption force for the device to be charged, and the method comprises the following steps: acquiring environment data within a preset distance range of a current position of a vehicle, and acquiring current state data of the vehicle; determining a target adsorption force required for fixing the equipment to be charged according to the environment data and the current state data; and adjusting the current adsorption force provided by the adsorption force supply device according to the target adsorption force. The technical scheme provided by the embodiment of the application can promote the use experience of a user on the vehicle-mounted charger.
Description
Technical Field
The present invention relates to the field of vehicle-mounted chargers, and in particular, to a method and apparatus for controlling a vehicle-mounted charger, a storage medium, and a vehicle-mounted charger.
Background
Along with the configuration function trend diversification of vehicles, in order to facilitate users to charge equipment to be charged on vehicles, such as mobile phones on vehicles, vehicle-mounted chargers are usually arranged in the vehicles, at the present stage, the vehicle-mounted chargers generally provide a certain adsorption force for the equipment to be charged in the process of charging the equipment to be charged by using the vehicle-mounted chargers so as to prevent the equipment to be charged from slipping, slipping and the like, but at the present stage, the adsorption force provided by the vehicle-mounted chargers for the equipment to be charged is usually very small, so that the equipment to be charged is very easy to drop from the vehicle-mounted chargers in the driving process of the vehicles if jolt and the like are encountered, thereby damaging the equipment to be charged, reducing the charging efficiency of the equipment to be charged and the like, and further reducing the use experience of the user to the vehicle-mounted chargers.
Disclosure of Invention
The embodiment of the application provides a control method and device of a vehicle-mounted charger, a storage medium and the vehicle-mounted charger, and based on the technical scheme provided by the application, the use experience of a user on equipment to be charged can be improved.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned in part by the practice of the application.
According to a first aspect of embodiments of the present application, there is provided a control method of an in-vehicle charger including a panel on which a device to be charged is placed, and an adsorption force supply device for supplying an adsorption force to the device to be charged, the method including: acquiring environment data within a preset distance range of a current position of a vehicle, and acquiring current state data of the vehicle; determining a target adsorption force required for fixing the equipment to be charged according to the environment data and the current state data; and adjusting the current adsorption force provided by the adsorption force supply device according to the target adsorption force.
In some embodiments of the present application, based on the foregoing aspect, the current state data includes current tire pressure data of the vehicle, and current acceleration in a traveling direction of the vehicle, and the determining, according to the environmental data and the current state data, a target adsorption force required to fix the device to be charged includes: determining a current road condition risk level of the current position of the vehicle according to the environmental data, wherein the current road condition risk level is used for representing the road condition risk level of the current position of the vehicle, and the current road condition risk level is positively related to the road condition risk level; and determining the target adsorption force according to the current road condition risk level, the current tire pressure data and the current acceleration.
In some embodiments of the present application, based on the foregoing aspect, the determining the target adsorption force according to the current road condition risk level, the current tire pressure data, and the current acceleration includes: determining a first adsorption force matched with the current road condition risk level; determining a second adsorption force matched with the current tire pressure data; determining a third adsorption force matching the current acceleration; and determining the target adsorption force according to the first adsorption force, the second adsorption force and the third adsorption force.
In some embodiments of the present application, based on the foregoing solution, determining the first adsorption force matching the current road condition risk level includes: acquiring a first corresponding relation between a pre-constructed road condition risk level and the adsorption force, wherein the road condition risk level and the adsorption force are positively correlated; and determining the adsorption force corresponding to the current road condition danger level based on the first corresponding relation as the first adsorption force.
In some embodiments of the present application, based on the foregoing aspect, the determining the second adsorption force matching the current tire pressure data includes: acquiring tire pressure data of the vehicle in a steady state as initial tire pressure data; determining a current tire pressure change rate of the vehicle according to the initial tire pressure data and the current tire pressure data; acquiring a second corresponding relation between a pre-established tire pressure change rate and the adsorption force, wherein the tire pressure change rate is positively related to the adsorption force; and determining the adsorption force corresponding to the current tire pressure change rate as the second adsorption force based on the second corresponding relation.
In some embodiments of the present application, based on the foregoing aspect, the determining the third adsorption force matching the current acceleration includes: acquiring a third corresponding relation between a pre-constructed absolute value of acceleration and the adsorption force, wherein the absolute value of acceleration is positively correlated with the adsorption force; and determining an adsorption force corresponding to the absolute value of the current acceleration as the third adsorption force based on the third correspondence.
In some embodiments of the present application, based on the foregoing aspect, the determining the target adsorption force according to the first adsorption force, the second adsorption force, and the third adsorption force includes: and taking the sum of the first adsorption force, the second adsorption force and the third adsorption force as the target adsorption force.
According to a second aspect of the embodiments of the present application, there is provided a control device of an in-vehicle charger including a panel on which a device to be charged is placed, and an adsorption force supply device for supplying an adsorption force to the device to be charged, the device including: the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring environment data in a preset distance range of a current position of a vehicle and acquiring current state data of the vehicle; a determining unit, configured to determine a target adsorption force required for fixing the device to be charged according to the environmental data and the current state data; and the adjusting unit is used for adjusting the current adsorption force provided by the adsorption force supply device according to the target adsorption force.
According to a third aspect of embodiments of the present application, there is provided a computer readable storage medium, wherein at least one program code is stored in the computer readable storage medium, the at least one program code being loaded and executed by a processor to implement operations performed by a method as described in any of the first aspects above.
According to a fourth aspect of embodiments of the present application, there is provided an on-board charger comprising one or more processors and one or more memories, the one or more memories having stored therein at least one piece of program code that is loaded and executed by the one or more processors to carry out the operations performed by the method as described in any of the first aspects above.
According to the technical scheme, the vehicle-mounted charger comprises a panel and an adsorption force supply device, wherein equipment to be charged is placed on the panel, the adsorption force supply device is used for providing adsorption force for the equipment to be charged, and in the process of controlling the vehicle-mounted charger arranged in a vehicle, environment data in a preset distance range of the current position of the vehicle are firstly obtained, and current state data of the vehicle are obtained; secondly, determining target adsorption force required by fixing the equipment to be charged according to the environmental data and the current state data; and finally, adjusting the current adsorption force provided by the adsorption force supply device according to the target adsorption force.
Therefore, based on the technical scheme of the application, the in-process that the charging equipment charges under the vehicle driving state is treated, the environmental data of the current position of the vehicle and the current state data of the vehicle are obtained in real time, the target adsorption force required by the fixing of the charging equipment can be determined in real time, and the adsorption force provided by the adsorption force supply device can be adjusted in real time according to the target adsorption force, so that the charging equipment is always fixed on the panel in the charging process, the relative sliding does not occur, the damage caused by the sliding of the charging equipment can be avoided, the damage to drivers and passengers caused by the flying out of the charging equipment from the panel can be avoided, and the use experience of a vehicle-mounted charger can be improved for a user.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:
FIG. 1 shows a schematic configuration of an in-vehicle charger according to one embodiment of the present application;
FIG. 2 shows a flow diagram of a control method of an in-vehicle charger according to one embodiment of the present application;
FIG. 3 illustrates a detailed flow diagram of determining a target adsorption force required to secure the device to be charged based on the environmental data and the current status data, according to one embodiment of the present application;
FIG. 4 is a detailed flow chart of determining the target suction force according to the current road condition risk level, the current tire pressure data, and the current acceleration according to one embodiment of the present application;
FIG. 5 shows a block diagram of a control device of an in-vehicle charger according to one embodiment of the present application;
fig. 6 shows a schematic structural diagram of an in-vehicle charger according to an embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the aspects of the application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the objects so used may be interchanged where appropriate such that the embodiments of the present application described herein may be implemented in sequences other than those illustrated or described.
For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Before describing a control method of the vehicle-mounted charger according to the embodiment of the present application, a structure of the vehicle-mounted charger provided in the present application will be described with reference to fig. 1.
Referring to fig. 1, a schematic diagram of an on-board charger according to one embodiment of the present application is shown.
In the present application, the device to be charged may be an electronic device to be charged, including but not limited to a mobile phone, a bluetooth headset, a tablet computer, a telephone watch, etc.
In this application, the on-board charger mentioned can provide power to the device to be charged, and alternatively, the on-board charger may be an on-board wired charger or an on-board wireless charger.
In this application, optionally, the on-vehicle charger that provides can include panel 10, has placed on this panel 10 and has waited to charge equipment, if this on-vehicle charger is on-vehicle wireless charger, this panel 10 not only can be used for placing waited to charge equipment, can also be the charging panel, and charging panel below is provided with charging coil, when waiting to charge equipment to place on the charging panel, charging coil realizes carrying out wireless charging to the waited to charge equipment of placing through the charging panel.
If the vehicle-mounted charger is a vehicle-mounted wired charger, the device to be charged may be placed on the panel 10 during the process of charging the device to be charged by wired connection with the vehicle-mounted charger, so as to fix the device to be charged during the charging process.
In this application, optionally, the vehicle-mounted charger may further include a base 12, where the base 12 is used to provide a supporting force to the panel 10, and the base 12 is disposed below the panel 10, and if the vehicle-mounted charger is a vehicle-mounted wireless charger, a charging coil may be placed between the panel 10 and the base 12, and so on.
In this application, optionally, the on-board charger may further include a ventilation cooling plate 11 integrated on the panel 10, and the ventilation cooling plate 11 is used for cooling the device to be charged.
In the present application, optionally, an adsorption force supply device may be further provided in the vehicle-mounted charger, the adsorption force supply device being configured to supply an adsorption force to the device to be charged.
In the present application, the installation position of the suction force supply device is related to the type of suction force provided by the suction force supply device, the structure of the suction force supply device, and the like.
For example, if the suction force provided by the suction force supply device is negative pressure suction force, the suction force supply device may be integrated on the panel 10, and the specific structure of the suction force supply device for providing negative pressure suction force may include a suction cup, a cavity, and a sealing piston, one end of the suction cup is connected with the device to be charged, the other end of the suction cup is connected with one end of the cavity, the sealing piston is movably disposed in the cavity, and the negative pressure suction force provided by the suction force supply device to the device to be charged is changed by adjusting the position of the piston in the cavity.
For example, if the attraction force provided by the attraction force supply means is a magnetic attraction force, the attraction force supply means may be disposed under the panel 10, and a specific structure of the attraction force supply means for providing the magnetic attraction force may be a structure including a plurality of electromagnets, and the magnetic attraction force provided by the attraction force supply means to the device to be charged may be changed by adjusting the current input to each electromagnet.
For example, if the attraction force provided by the attraction force supply means is a magnetic attraction force, the attraction force supply means may be disposed under the panel 10, and a specific structure of the attraction force supply means providing the magnetic attraction force may be a structure including a permanent magnet, and the magnetic attraction force provided by the attraction force supply means to the device to be charged may be changed by adjusting a distance between the device to be charged and the permanent magnet.
The three possible structures and installation positions of the above-described adsorption force supply device are examples, and specifically, the adsorption force supply device with adjustable adsorption force can be designed according to practical situations, which is not limited herein.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 2, a flowchart of a control method of an in-vehicle charger according to an embodiment of the present application is shown, and specifically includes the following steps 210 to 230:
it should be noted that, the following steps 210 to 230 are performed during the process of charging the device to be charged with the vehicle-mounted charger in the driving state of the vehicle.
Step 210, acquiring environment data within a preset distance range of a current position of a vehicle, and acquiring current state data of the vehicle.
In the present embodiment, the acquired environmental data within the preset distance range of the current position of the vehicle includes, but is not limited to, whether there is data of a living body (such as a person, an animal) approaching the vehicle, volume data of a living body approaching the vehicle, distance data between the living body approaching the vehicle and the vehicle, travel speed data of other vehicles in adjacent lanes of the lane in which the vehicle is located, travel speed data of other vehicles in the lane in which the vehicle is located, distance data between other vehicles and the host vehicle, data of whether there is a dangerous behavior of the vehicle (including, but not limited to, sudden braking, overtaking, collision, etc.) in the lane in which the vehicle is located and adjacent lanes of the lane in which the vehicle is located, road surface data of a road surface in front of the vehicle, and the like.
In this embodiment, environmental data within a preset distance range of a current position of the vehicle may be acquired through a multifunctional camera, a detection sensor, a lidar, a continuous damping control system CDC, an intelligent driving assistance system ADAS, and the like, which are provided on the vehicle.
In the present embodiment, the acquisition of the current state data of the vehicle may include the current tire pressure data of the vehicle, and the current acceleration in the traveling direction of the vehicle. The accelerations mentioned in the following embodiments of the present application refer to accelerations in the traveling direction of the vehicle.
In the present embodiment, the current tire pressure data of the vehicle may be acquired by a tire pressure detection sensor provided on the vehicle.
In this embodiment, the current acceleration in the running direction of the vehicle may be obtained by an acceleration sensor, or obtained by the speed at the current time and the speed at the previous time, or obtained by the amplitude of stepping on the accelerator/brake, and the mode of obtaining the current acceleration is not limited herein.
With continued reference to fig. 2, step 220 determines a target adsorption force required to fix the device to be charged based on the environmental data and the current state data.
It should be noted that, the target adsorption force required for fixing the device to be charged may be the minimum adsorption force for ensuring that the device to be charged does not slide relatively, or may be an adsorption force that is greater than the minimum adsorption force for ensuring that the device to be charged does not slide relatively, and in particular, a specific value of the target adsorption force required for fixing the device to be charged is not limited herein.
The specific embodiment of step 220 may be performed as follows from the steps shown in fig. 3:
referring to fig. 3, a detailed flowchart of determining a target adsorption force required for fixing the device to be charged according to the environmental data and the current state data according to an embodiment of the present application is shown, and specifically includes the following steps 221 to 222:
Step 221, determining a current road condition risk level of the current position of the vehicle according to the environmental data, wherein the current road condition risk level is used for representing the road condition risk level of the current position of the vehicle, and the current road condition risk level is positively related to the road condition risk level.
In this embodiment, the road condition risk level may be described by using continuous values, for example, assuming that the range of values of the road condition risk level is [0,1], the determined current road condition risk level is a value in the [0,1] interval.
In this embodiment, the road condition risk level may also be described by a discrete numerical value, for example, assuming that the road condition risk level is described by 0,1, 2..9, the determined current road condition risk level is an integer of 0,1, 2..9. Specifically, the description form of the road condition risk level can be set according to the actual situation, and the application is not limited herein.
In this embodiment, the higher the determined risk level of the current road condition means the higher the risk level of the road condition of the current location of the vehicle, and by way of example, if the risk level of the road condition is described by using discrete values, for example, 0,1,2, 9, then it is assumed that the determined risk level of the current road condition is 0, which indicates that the risk level of the road condition of the current location of the vehicle is the lowest, it can be interpreted that there is no risk in the road condition of the current location of the vehicle, and it is assumed that the determined risk level of the current road condition is 9, which indicates that the risk level of the road condition of the current location of the vehicle is the highest.
In this embodiment, according to the environmental data, a specific implementation manner of determining the current road condition risk level of the current position of the vehicle may be set according to an actual situation, which is not limited herein. Illustratively, steps 2211 through 2213 may be performed as follows:
step 2211, determining whether a living body is approaching the vehicle, and determining whether other vehicles have dangerous behaviors, and determining whether a bumpy road surface exists in front of the vehicle, according to the environmental data.
In step 2211, if there is sudden braking action, overtaking action, collision action, etc. of the other vehicles, it may be determined that there is dangerous action of the other vehicles, which may cause the own vehicle to generate sudden braking.
Step 2212, if it is determined that a living body approaches the vehicle, calculating a first road condition risk level according to the state data of the living body; if the dangerous behavior of the other vehicles is determined, calculating a second road condition dangerous level according to the state data of the other vehicles; if it is determined that there is a bumpy road surface in front of the vehicle, a third road condition risk level is calculated from the attribute data of the bumpy road surface.
In step 2212, the state data of the living body includes, but is not limited to, volume data of the living body, distance data between the living body and the host vehicle, and the like. The status data of the other vehicles includes, but is not limited to, distance data between the other vehicles and the host vehicle, traveling speeds of the other vehicles, and the like. The attribute data of the bumpy road surface includes, but is not limited to, the bumpy height or depth, the length data of the bumpy road surface, and the like.
Step 2213, determining the current road condition risk level according to the first road condition risk level, the second road condition risk level, and the third road condition risk level.
In step 2213, a specific implementation manner may be to take an average value of the first road condition risk level, the second road condition risk level, and the third road condition risk level as the current road condition risk level.
In step 2213, the specific implementation may further use the maximum value of the first road condition risk level, the second road condition risk level, and the third road condition risk level as the current road condition risk level.
It should be noted that the specific embodiment of step 2213 may be set up by itself, which is not limited herein.
With continued reference to fig. 3, step 222 determines the target adsorption force according to the current road condition hazard level, the current tire pressure data, and the current acceleration.
In step 222, a particular embodiment may be performed in accordance with the steps shown in fig. 4.
Referring to fig. 4, a detailed flowchart of determining the target adsorption force according to the current road condition risk level, the current tire pressure data, and the current acceleration according to an embodiment of the present application is shown, and specifically includes the following steps 2221 to 2224:
Step 2221, determining a first adsorption force matched with the current road condition risk level.
In step 2221, specific embodiments may be: acquiring a first corresponding relation between a pre-constructed road condition risk level and the adsorption force, wherein the road condition risk level and the adsorption force are positively correlated; and determining the adsorption force corresponding to the current road condition danger level based on the first corresponding relation as the first adsorption force.
In this embodiment, it should be noted that, in the first correspondence, the higher the road condition risk level is, the greater the corresponding adsorption force is.
It can be understood that if the current road condition hazard level is higher, the road condition hazard level indicating the current position of the vehicle is higher, the vehicle is indicated to perform emergency braking, or the possibility of entering a bumpy road surface or the like is higher, so that the probability of the vehicle running in an uneven manner is higher, the device to be charged in the vehicle is easier to slide relatively, and further, larger adsorption force is required to be provided for the device to be charged, so that the device to be charged is fixed, and the device to be charged is prevented from sliding relatively.
In the present embodiment, the expression of the first correspondence relation may be as follows formula (1):
F 1 ＝αRC t Formula (1)
Wherein F is 1 Represents the adsorption force; alpha represents the variation of the adsorption force in the unit road condition dangerous grade; RC (resistor-capacitor) t And represents the road condition risk level.
It is understood that α is a number greater than 0.
It can be further understood that when the determined dangerous grade of the current road condition is substituted into the formula (1), the corresponding adsorption force can be obtained, and then the first adsorption force can be obtained.
In the formula (1), α may be obtained through a preliminary test, and a specific test may be designed according to practical situations, which is not limited herein. Illustratively, α can be measured as follows:
the vehicle is tested for a plurality of times, and the road condition dangerous grade is used as a variable in each test, namely the vehicle is controlled to run under the condition of different road condition dangerous grades in each test; when the vehicle runs under the condition of corresponding road condition dangerous grades, and when the equipment to be charged on the panel of the vehicle-mounted charger is guaranteed not to slide relatively, the adsorption force provided by the adsorption force supply device to the equipment to be charged is needed, so that multiple groups of adsorption force data and corresponding road condition dangerous grade data can be obtained. Further, the obtained multiple groups of adsorption force data and multiple groups of road condition dangerous grade data can be linearly fitted into a straight line, wherein in the linear fitting process, the abscissa is the road condition dangerous grade, the ordinate is the adsorption force, and finally, the slope of the straight line obtained by linear fitting can be directly used as alpha.
In this embodiment, the first correspondence relationship may be constructed in other manners, which is not limited herein.
With continued reference to fig. 4, step 2222 determines a second suction force that matches the current tire pressure data.
In step 2222, specific embodiments may be: acquiring tire pressure data of the vehicle in a steady state as initial tire pressure data; determining a current tire pressure change rate of the vehicle according to the initial tire pressure data and the current tire pressure data; acquiring a second corresponding relation between a pre-established tire pressure change rate and the adsorption force, wherein the tire pressure change rate is positively related to the adsorption force; and determining the adsorption force corresponding to the current tire pressure change rate as the second adsorption force based on the second corresponding relation.
In the present embodiment, the stationary state of the vehicle may be a state in which the vehicle is stationary; the vehicle may be in a state of traveling on a flat road surface at a constant speed, or the like.
In the present embodiment, the current tire pressure change rate may be calculated by the following formula (2):
wherein TP s Representing the current tire pressure change rate; TP (Transmission protocol) t Representing a current tire pressure; TP (Transmission protocol) 0 Indicating the initial tire pressure.
In the present embodiment, in the second correspondence relationship, the larger the tire pressure change rate is, the larger the corresponding adsorption force is.
It can be understood that when the vehicle runs on a bumpy road, the tire pressure of the tire of the vehicle changes due to the extrusion of the bumpy road to the tire of the vehicle, so that if the tire pressure change rate of the vehicle is larger, the bumpy degree of the road on which the vehicle currently runs is larger, the device to be charged in the vehicle is easier to slide relatively, and further, larger adsorption force is required to be provided for the device to be charged, so that the device to be charged is fixed, and the device to be charged is prevented from sliding relatively.
In this embodiment, the expression of the second correspondence relationship may be the following formula (3):
F 2 ＝βTP M formula (3)
Wherein F is 2 Represents the adsorption force; beta represents the variation of the adsorption force in the unit tire pressure variation rate; TP (Transmission protocol) M Indicating the tire pressure change rate.
It is understood that β in formula (3) is a value greater than 0.
It can be further understood that when the determined current tire pressure change rate is substituted into the formula (3), the corresponding adsorption force can be obtained, and then the second adsorption force can be obtained.
In the formula (3), β may be obtained through a preliminary test, and a specific test may be designed according to practical situations, which is not limited herein. Illustratively, β can be tested as follows:
The method comprises the steps of performing multiple tests on the vehicle, wherein each test only takes the tire pressure change rate as a variable, namely controlling the vehicle to run under the condition of different tire pressure change rates in each test; when the vehicle runs under the condition of corresponding tire pressure change rate, and when the equipment to be charged on the panel of the vehicle-mounted charger is guaranteed not to slide relatively, the adsorption force provided by the adsorption force supply device to the equipment to be charged is needed, so that multiple groups of adsorption force data and corresponding tire pressure change rate data can be obtained. Further, the obtained multiple groups of adsorption force data and multiple groups of tire pressure change rate data can be linearly fitted into a straight line, wherein in the linear fitting process, the abscissa is the tire pressure change rate, the ordinate is the adsorption force, and finally, the slope of the straight line obtained by linear fitting can be directly used as beta.
In this embodiment, the second correspondence relationship may be configured in other manners, which is not limited herein.
With continued reference to fig. 4, a third adsorption force is determined that matches the current acceleration, step 2223.
In step 2223, specific embodiments may be: acquiring a third corresponding relation between a pre-constructed absolute value of acceleration and the adsorption force, wherein the absolute value of acceleration is positively correlated with the adsorption force; and determining an adsorption force corresponding to the absolute value of the current acceleration as the third adsorption force based on the third correspondence.
In the present embodiment, in the third correspondence relationship, the larger the absolute value of the acceleration is, the larger the corresponding adsorption force is.
It can be understood that if the absolute value of the acceleration is larger, the stability of the current running state of the vehicle is worse, the device to be charged in the vehicle is easier to slide relatively, and further, larger adsorption force is required to be provided for the device to be charged, so that the device to be charged is fixed, and the device to be charged is prevented from sliding relatively.
In the present embodiment, the expression of the third correspondence relation may be the following formula (4):
F 3 =γα|formula (4)
Wherein F is 3 Represents the adsorption force; gamma represents the variation of the adsorption force in the absolute value of unit acceleration; the absolute value of acceleration is denoted by a.
It is understood that γ in equation (4) is a number greater than 0.
It can be further understood that when the absolute value of the determined current acceleration is substituted into the formula (4), the corresponding adsorption force can be obtained, and the third adsorption force can be obtained.
In the formula (4), γ may be obtained through a preliminary test, and a specific test may be designed according to practical situations, which is not limited herein. Illustratively, γ can be tested as follows:
The vehicle is tested for a plurality of times, and only acceleration is used as a variable in each test, namely the vehicle is controlled to run under the condition of different accelerations in each test; when the vehicle runs under the corresponding acceleration condition, the adsorption force provided by the adsorption force supply device to the equipment to be charged is required when the equipment to be charged on the panel of the vehicle-mounted charger is ensured not to slide relatively, so that multiple groups of adsorption force data and corresponding acceleration data can be obtained. Further, the obtained multiple groups of adsorption force data and multiple groups of acceleration data can be linearly fitted into a straight line, wherein in the linear fitting process, the abscissa is the absolute value of the acceleration, the ordinate is the adsorption force, and finally, the slope of the straight line obtained by linear fitting can be directly used as gamma.
In this embodiment, the third correspondence relationship may be constructed in other manners, which is not limited herein.
With continued reference to fig. 4, step 2224 determines the target adsorption force based on the first adsorption force, the second adsorption force, and the third adsorption force.
A specific embodiment of step 2224 may use the sum of the first adsorption force, the second adsorption force, and the third adsorption force as the target adsorption force.
In a specific embodiment of step 2224, the maximum value of the first adsorption force, the second adsorption force, and the third adsorption force may be used as the target adsorption force.
In a specific embodiment of step 2224, the average value of the first adsorption force, the second adsorption force, and the third adsorption force may be used as the target adsorption force.
Specifically, the specific embodiment of step 2224 is not limited, and may be designed according to practical situations.
In summary, through the technical solution of step 220, the target adsorption force for fixing the device to be charged may be determined in real time according to the environmental data of the current position of the vehicle and the current state data of the vehicle acquired in real time.
With continued reference to fig. 2, in step 230, the current suction force provided by the suction force supply device is adjusted according to the target suction force.
In step 230, the specific embodiment is related to the type of adsorption force provided by the adsorption force supply device, and the structure of the adsorption force supply device. For example, if the attraction force supply apparatus is configured to include an electromagnet and the attraction force provided is a magnetic attraction force, the current input to the electromagnet may be adjusted according to the target attraction force so that the magnetic attraction force provided by the electromagnet after the adjusted current to the device to be charged is the target attraction force.
In the present embodiment, it is understood that if the current supply of the adsorption force by the adsorption force supply means is smaller than the target adsorption force, the adsorption force by the adsorption force supply means should be subjected to the heightening process, if the current supply of the adsorption force by the adsorption force supply means is larger than the target adsorption force, the adsorption force by the adsorption force supply means should be subjected to the lowering process, and if the current supply of the adsorption force by the adsorption force supply means is equal to the target adsorption force, the adsorption force by the adsorption force supply means may not be regulated. For example, assuming that the target adsorption force is determined to be 12N and the adsorption force currently supplied by the adsorption force supply means is 10N, the adsorption force supplied by the adsorption force supply means should be adjusted up to 12N by performing an adjustment process.
In this embodiment, it should be noted that, if the adsorption force supply device is controlled to provide the maximum adsorption force to the device to be charged during the whole charging period of the device to be charged, although the device to be charged can be ensured to be fixed on the panel relatively still all the time, the first aspect is that if the user needs to take down the device to be charged during the charging period of the device to be charged, the maximum adsorption force must increase the resistance of the user to take down the device to be charged, thereby reducing the convenience of the user to take down the device to be charged and reducing the use experience of the user to the vehicle-mounted charger; on the other hand, the adsorption force supply device always provides the maximum adsorption force, which tends to increase the energy consumed by the adsorption force supply device, and further causes unnecessary energy waste.
Therefore, in the application, the technical scheme of design is according to the environment that the vehicle current position is located and the current state data of vehicle, adjusts the adsorption force that adsorption force feeding device provided in real time, and then not only can avoid always adopting the biggest adsorption force to provide when waiting to charge equipment, the produced energy waste of adsorption force feeding device that can lead to can also wait to charge equipment's charging period, will wait to charge equipment to fix on the panel all the time, avoid waiting to charge equipment landing.
In some embodiments of the present application, an on-vehicle charger is provided, where the on-vehicle charger includes a panel and an adsorption force supply device, where a device to be charged is placed on the panel, and the adsorption force supply device is configured to provide an adsorption force for the device to be charged, and in a process of controlling the on-vehicle charger set in a vehicle, first obtain environmental data within a preset distance range of a current position of the vehicle, and obtain current state data of the vehicle; secondly, determining target adsorption force required by fixing the equipment to be charged according to the environmental data and the current state data; and finally, adjusting the current adsorption force provided by the adsorption force supply device according to the target adsorption force.
Therefore, based on the technical scheme of the application, the in-process that the charging equipment charges under the vehicle driving state is treated, the environmental data of the current position of the vehicle and the current state data of the vehicle are obtained in real time, the target adsorption force required by the fixing of the charging equipment can be determined in real time, and the adsorption force provided by the adsorption force supply device can be adjusted in real time according to the target adsorption force, so that the charging equipment is always fixed on the panel in the charging process, the relative sliding does not occur, the damage caused by the sliding of the charging equipment can be avoided, the damage to drivers and passengers caused by the flying out of the charging equipment from the panel can be avoided, and the use experience of a vehicle-mounted charger can be improved for a user.
Based on the same inventive concept, the embodiment of the present application provides a control device of an on-vehicle charger, which may be used to execute the control method of the on-vehicle charger in the above embodiment of the present application. For details not disclosed in the embodiments of the present application, please refer to the embodiments of the control method of the vehicle-mounted charger described in the present application.
Referring to fig. 5, a block diagram of a control device of an in-vehicle charger according to one embodiment of the present application is shown.
As shown in fig. 5, a control device 500 of an in-vehicle charger according to an embodiment of the present application, the in-vehicle charger including a panel on which a device to be charged is placed, and an adsorption force supply device for supplying an adsorption force to the device to be charged, the device comprising: an acquisition unit 501, a determination unit 502, and an adjustment unit 503.
The acquiring unit 501 is configured to acquire environmental data within a preset distance range of a current position of a vehicle, and acquire current state data of the vehicle; the determining unit 502 is configured to determine, according to the environmental data and the current state data, a target adsorption force required for fixing the device to be charged; the adjusting unit 503 is configured to adjust the current adsorption force provided by the adsorption force supply device according to the target adsorption force.
In some embodiments of the present application, based on the foregoing aspect, the current state data includes current tire pressure data of the vehicle, and current acceleration in a traveling direction of the vehicle, and the determining unit 502 is further configured to: determining a current road condition risk level of the current position of the vehicle according to the environmental data, wherein the current road condition risk level is used for representing the road condition risk level of the current position of the vehicle, and the current road condition risk level is positively related to the road condition risk level; and determining the target adsorption force according to the current road condition risk level, the current tire pressure data and the current acceleration.
In some embodiments of the present application, based on the foregoing scheme, the determining unit 502 is further configured to: determining a first adsorption force matched with the current road condition risk level; determining a second adsorption force matched with the current tire pressure data; determining a third adsorption force matching the current acceleration; and determining the target adsorption force according to the first adsorption force, the second adsorption force and the third adsorption force.
In some embodiments of the present application, based on the foregoing scheme, the determining unit 502 is further configured to: acquiring a first corresponding relation between a pre-constructed road condition risk level and the adsorption force, wherein the road condition risk level and the adsorption force are positively correlated; and determining the adsorption force corresponding to the current road condition danger level based on the first corresponding relation as the first adsorption force.
In some embodiments of the present application, based on the foregoing scheme, the determining unit 502 is further configured to: acquiring tire pressure data of the vehicle in a steady state as initial tire pressure data; determining a current tire pressure change rate of the vehicle according to the initial tire pressure data and the current tire pressure data; acquiring a second corresponding relation between a pre-established tire pressure change rate and the adsorption force, wherein the tire pressure change rate is positively related to the adsorption force; and determining the adsorption force corresponding to the current tire pressure change rate as the second adsorption force based on the second corresponding relation.
In some embodiments of the present application, based on the foregoing scheme, the determining unit 502 is further configured to: acquiring a third corresponding relation between a pre-constructed absolute value of acceleration and the adsorption force, wherein the absolute value of acceleration is positively correlated with the adsorption force; and determining an adsorption force corresponding to the absolute value of the current acceleration as the third adsorption force based on the third correspondence.
In some embodiments of the present application, based on the foregoing scheme, the determining unit 502 is further configured to: and taking the sum of the first adsorption force, the second adsorption force and the third adsorption force as the target adsorption force.
Based on the same inventive concept, the embodiments of the present application also provide a computer-readable storage medium having stored therein at least one computer program instruction that is loaded and executed by a processor to implement the operations performed by the method as described above.
Based on the same inventive concept, the embodiment of the application also provides an on-vehicle charger.
Referring to fig. 6, a schematic diagram of an on-board charger according to one embodiment of the present application is shown, the on-board charger comprising one or more memories 604, one or more processors 602, and at least one computer program (computer program instructions) stored on the memories 604 and executable on the processors 602, the processor 602 implementing the method as described above when executing the computer program.
Where in FIG. 6, a bus architecture (represented by bus 600), bus 600 may include any number of interconnected buses and bridges, with bus 600 linking together various circuits, including one or more processors, represented by processor 602, and memory, represented by memory 604. Bus 600 may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., as are well known in the art and, therefore, will not be described further herein. The bus interface 605 provides an interface between the bus 600 and the receiver 601 and transmitter 603. The receiver 601 and the transmitter 603 may be the same element, i.e. a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 602 is responsible for managing the bus 600 and general processing, while the memory 604 may be used to store data used by the processor 602 in performing operations.
The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software that is executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the present application and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or a combination of any of these. In addition, each functional unit may be integrated in one processing unit, each unit may exist alone physically, or two or more units may be integrated in one unit.
In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate components may or may not be physically separate, and components as control devices may or may not be physical units, may be located in one place, or may be distributed over a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing computer program instructions.
The foregoing is merely exemplary of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A control method of an in-vehicle charger, characterized in that the in-vehicle charger includes a panel on which a device to be charged is placed, and an adsorption force supply device for supplying an adsorption force to the device to be charged, the method comprising:
acquiring environment data within a preset distance range of a current position of a vehicle, and acquiring current state data of the vehicle;
determining a target adsorption force required for fixing the equipment to be charged according to the environment data and the current state data;
and adjusting the current adsorption force provided by the adsorption force supply device according to the target adsorption force.
2. The method according to claim 1, wherein the current state data includes current tire pressure data of the vehicle, and current acceleration in a traveling direction of the vehicle, and the determining a target suction force required to fix the device to be charged based on the environment data and the current state data includes:
Determining a current road condition risk level of the current position of the vehicle according to the environmental data, wherein the current road condition risk level is used for representing the road condition risk level of the current position of the vehicle, and the current road condition risk level is positively related to the road condition risk level;
and determining the target adsorption force according to the current road condition risk level, the current tire pressure data and the current acceleration.
3. The method of claim 2, wherein the determining the target suction force based on the current road condition hazard level, the current tire pressure data, and the current acceleration comprises:
determining a first adsorption force matched with the current road condition risk level;
determining a second adsorption force matched with the current tire pressure data;
determining a third adsorption force matching the current acceleration;
and determining the target adsorption force according to the first adsorption force, the second adsorption force and the third adsorption force.
4. A method according to claim 3, wherein determining a first adsorption force matching the current road condition hazard level comprises:
Acquiring a first corresponding relation between a pre-constructed road condition risk level and the adsorption force, wherein the road condition risk level and the adsorption force are positively correlated;
and determining the adsorption force corresponding to the current road condition danger level based on the first corresponding relation as the first adsorption force.
5. The method of claim 3, wherein the determining a second suction force that matches the current tire pressure data comprises:
acquiring tire pressure data of the vehicle in a steady state as initial tire pressure data;
determining a current tire pressure change rate of the vehicle according to the initial tire pressure data and the current tire pressure data;
acquiring a second corresponding relation between a pre-established tire pressure change rate and the adsorption force, wherein the tire pressure change rate is positively related to the adsorption force;
and determining the adsorption force corresponding to the current tire pressure change rate as the second adsorption force based on the second corresponding relation.
6. A method according to claim 3, wherein said determining a third adsorption force that matches said current acceleration comprises:
acquiring a third corresponding relation between a pre-constructed absolute value of acceleration and the adsorption force, wherein the absolute value of acceleration is positively correlated with the adsorption force;
And determining an adsorption force corresponding to the absolute value of the current acceleration as the third adsorption force based on the third correspondence.
7. The method of claim 3, wherein said determining said target adsorption force based on said first adsorption force, said second adsorption force, and said third adsorption force comprises:
and taking the sum of the first adsorption force, the second adsorption force and the third adsorption force as the target adsorption force.
8. A control device of an in-vehicle charger, characterized in that the in-vehicle charger includes a panel on which a device to be charged is placed, and an adsorption force supply device for supplying an adsorption force to the device to be charged, the device comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring environment data in a preset distance range of a current position of a vehicle and acquiring current state data of the vehicle;
a determining unit, configured to determine a target adsorption force required for fixing the device to be charged according to the environmental data and the current state data;
and the adjusting unit is used for adjusting the current adsorption force provided by the adsorption force supply device according to the target adsorption force.
9. A computer readable storage medium having stored therein at least one program code loaded and executed by a processor to implement operations performed by the method of any of claims 1 to 7.
10. An on-board charger comprising one or more processors and one or more memories, the one or more memories having stored therein at least one program code loaded and executed by the one or more processors to implement the method of any of claims 1-7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311872536.8A CN117818491A (en) | 2023-12-29 | 2023-12-29 | Control method and device of vehicle-mounted charger, storage medium and vehicle-mounted charger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311872536.8A CN117818491A (en) | 2023-12-29 | 2023-12-29 | Control method and device of vehicle-mounted charger, storage medium and vehicle-mounted charger |
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| CN117818491A true CN117818491A (en) | 2024-04-05 |
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| CN (1) | CN117818491A (en) |
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