A method and system for testing charging efficiency of a wireless charging system

Abstract

The present invention discloses a method and system for testing the charging efficiency of a wireless charging system, the method comprising: obtaining a coordinate origin; starting from the coordinate origin, driving a receiving end to move along a first direction axis on a first plane, obtaining a first efficiency curve of the wireless charging system when the receiving end moves along the first direction axis; starting from the coordinate origin, driving the receiving end to move along a second direction axis on the first plane that is perpendicular to the first direction axis, obtaining a second efficiency curve of the wireless charging system when the receiving end moves along the second direction axis; starting from the coordinate origin, driving the receiving end to move along a third direction axis that is perpendicular to the first plane, obtaining a third efficiency curve of the wireless charging system when the receiving end moves along the third direction axis. The present invention can test the effective coupling distance and charging efficiency of the wireless charging system in three directions by obtaining the charging efficiency of the wireless charging system when the receiving end moves on the three direction axes respectively.

Description

Technical Field

[0001] The present invention belongs to the technical field of wireless charging, and in particular relates to a method and system for testing the charging efficiency of a wireless charging system. Background Art

[0002] Wireless charging is also known as inductive charging or contactless inductive charging. It uses near-field induction, or inductive coupling, to transmit energy from the power supply device to the power-consuming device (receiving end). The power-consuming device (receiving end) uses the received energy to charge the battery and also for its own operation. Since the energy is transmitted between the charging transmitter (transmitter) and the charging receiver (receiving end) by inductive coupling, the efficiency of inductive charging determines the efficiency of the wireless charging system.

[0003] During the research and development phase, it is necessary to test the efficiency of the wireless charging system in order to design and optimize the performance of the wireless charging system. At present, the test of the wireless charging system is generally to test the charging efficiency of the wireless charging system under normal working conditions through a power meter or a professional wireless charging efficiency meter. It does not test the charging efficiency when the transmitter and receiver are in different positions. Therefore, the existing efficiency test method cannot comprehensively evaluate the charging efficiency of the wireless charging system. Summary of the invention

[0004] The purpose of the present invention is to provide a method and system for testing the charging efficiency of a wireless charging system, so as to achieve the purpose of comprehensively evaluating the charging efficiency of the wireless charging system.

[0005] The technical solution provided by the present invention is as follows:

[0006] A method for testing charging efficiency of a wireless charging system, comprising:

[0007] Get the coordinate origin;

[0008] Starting from the coordinate origin, driving the receiving end to move along a first direction axis on a first plane, and obtaining a first efficiency curve of the wireless charging system when the receiving end moves along the first direction axis;

[0009] Starting from the coordinate origin, driving the receiving end to move along a second direction axis on the first plane that is perpendicular to the first direction axis, and obtaining a second efficiency curve of the wireless charging system when the receiving end moves along the second direction axis;

[0010] Starting from the coordinate origin, the receiving end is driven to move along a third direction axis perpendicular to the first plane, and a third efficiency curve of the wireless charging system is obtained when the receiving end moves along the third direction axis.

[0011] Furthermore, after obtaining the first efficiency curve of the wireless charging system, the method further includes:

[0012] According to the first efficiency curve, finding a first position point where the charging efficiency of the wireless charging system is the highest on the first direction axis;

[0013] The receiving end is fixed at the first position point, the output current of the receiving end is adjusted, and a fourth efficiency curve of the wireless charging system under different output currents when the receiving end is fixed at the first position point is obtained.

[0014] Further, according to the second efficiency curve, a second position point where the charging efficiency of the wireless charging system is the highest on the second direction axis is found;

[0015] The receiving end is fixed at the second position point, the output current of the receiving end is adjusted, and a fifth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the second position point is obtained.

[0016] Furthermore, after obtaining the third efficiency curve diagram of the wireless charging system, the method further includes:

[0017] According to the third efficiency curve, finding a third position point where the wireless charging system has the maximum charging efficiency on the third direction axis;

[0018] The receiving end is fixed at the third position point, the output current of the receiving end is regulated, and a sixth efficiency curve of the wireless charging system under different output currents when the receiving end is fixed at the third position point is obtained.

[0019] Furthermore, it also includes:

[0020] According to the first efficiency curve, finding a first position point where the charging efficiency of the wireless charging system is the highest on the first direction axis;

[0021] According to the second efficiency curve, finding a second position point where the charging efficiency of the wireless charging system is the highest on the second direction axis;

[0022] According to the third efficiency curve, finding a third position point where the wireless charging system has the maximum charging efficiency on the third directional axis;

[0023] Acquire a fourth position point at which the charging efficiency of the wireless charging system is maximum according to the first position point, the second position point and the third position point;

[0024] The charging efficiency of the wireless charging system is obtained when the receiving end is at the fourth position.

[0025] The present invention also provides a testing system for charging efficiency of a wireless charging system, comprising:

[0026] The origin acquisition module is used to obtain the coordinate origin;

[0027] A driving module, used for driving the receiving end to move along a first direction axis on a first plane starting from the coordinate origin;

[0028] A curve acquisition module, used to acquire a first efficiency curve of the wireless charging system when the receiving end moves along the first direction axis;

[0029] The driving module is further used to drive the receiving end to move along a second direction axis perpendicular to the first direction axis on the first plane, starting from the coordinate origin;

[0030] The curve acquisition module is further used to acquire a second efficiency curve of the wireless charging system when the receiving end moves along the second direction axis;

[0031] The driving module is further used to drive the receiving end to move along a third direction axis perpendicular to the first plane starting from the coordinate origin;

[0032] The curve acquisition module is further used to acquire a third efficiency curve of the wireless charging system when the receiving end moves along the third direction axis.

[0033] Furthermore, it also includes:

[0034] A search module, configured to find, according to the first efficiency curve, a first position point where the charging efficiency of the wireless charging system on the first direction axis is the highest;

[0035] an adjusting module, used for adjusting an output current of the receiving end when the receiving end is fixed at the first position point;

[0036] The curve acquisition module is further used to acquire a fourth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the first position point.

[0037] Furthermore, it also includes:

[0038] A search module, configured to find, according to the second efficiency curve, a second position point where the charging efficiency of the wireless charging system on the second direction axis is the highest;

[0039] an adjusting module, used for adjusting the output current of the receiving end when the receiving end is fixed at the second position point;

[0040] The curve acquisition module is further used to acquire a fifth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the second position point.

[0041] Furthermore, it also includes:

[0042] A search module, configured to find a third position point where the charging efficiency of the wireless charging system on the third direction axis is the highest according to the third efficiency curve;

[0043] an adjusting module, used for adjusting the output current of the receiving end when the receiving end is fixed at the third position point;

[0044] The curve acquisition module is further used to acquire a sixth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the third position point.

[0045] Furthermore, it also includes:

[0046] A search module, configured to find, according to the first efficiency curve, a first position point where the charging efficiency of the wireless charging system on the first direction axis is the highest;

[0047] The search module is further used to find a second position point where the charging efficiency of the wireless charging system is the highest on the second direction axis according to the second efficiency curve;

[0048] The search module is further used to find a third position point where the charging efficiency of the wireless charging system on the third directional axis is the highest according to the third efficiency curve diagram;

[0049] The curve acquisition module is further used to acquire a fourth position point where the charging efficiency of the wireless charging system is the highest according to the first position point, the second position point and the third position point;

[0050] The curve acquisition module is used to acquire the charging efficiency of the wireless charging system when the receiving end is at the fourth position point.

[0051] The method and system for testing the charging efficiency of a wireless charging system provided by the present invention can bring at least one of the following beneficial effects:

[0052] 1. The present invention can test the effective coupling distance and charging efficiency of the wireless charging system in three directions by obtaining the charging efficiency of the wireless charging system when the receiving end moves in three directions, so as to facilitate R&D personnel to comprehensively evaluate the performance of the wireless charging system for further performance optimization.

[0053] 2. The present invention can evaluate the stability of the wireless charging system during the charging process by testing the efficiency curve of the wireless charging system under different output currents.

[0054] 3. The present invention tests the charging efficiency of the wireless charging system at the fourth position where the charging efficiency is the highest, so that researchers can evaluate the charging efficiency of wireless charging systems of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The following will explain the preferred implementation mode in a clear and understandable manner with reference to the accompanying drawings, and further explain the above-mentioned characteristics, technical features, advantages and implementation methods of a method and system for testing charging efficiency of a wireless charging system.

[0056] Figure 1 It is a flow chart of a first embodiment of a method for testing charging efficiency of a wireless charging system of the present invention;

[0057] Figure 2 It is a flow chart of a third embodiment of a method for testing charging efficiency of a wireless charging system of the present invention;

[0058] Figure 3 It is a structural schematic block diagram of an embodiment of a testing system for charging efficiency of a wireless charging system of the present invention;

[0059] Figure 4 It is a structural schematic block diagram of another embodiment of a testing system for charging efficiency of a wireless charging system of the present invention;

[0060] Figure 5 It is a connection diagram of a testing system for charging efficiency of a wireless charging system of the present invention. DETAILED DESCRIPTION

[0061] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0062] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0063] According to a first embodiment provided by the present invention, Figure 1As shown,

[0064] A method for testing charging efficiency of a wireless charging system, comprising:

[0065] S100 obtains the coordinate origin;

[0066] S200 starts from the coordinate origin, drives the receiving end to move along a first direction axis on a first plane, and obtains a first efficiency curve of the wireless charging system when the receiving end moves along the first direction axis;

[0067] S300 starts from the coordinate origin, drives the receiving end to move along a second direction axis on the first plane that is perpendicular to the first direction axis, and obtains a second efficiency curve of the wireless charging system when the receiving end moves along the second direction axis;

[0068] S400 starts from the coordinate origin, drives the receiving end to move along a third direction axis perpendicular to the first plane, and obtains a third efficiency curve of the wireless charging system when the receiving end moves along the third direction axis.

[0069] Specifically, the wireless charging system of the present invention includes a transmitter and a receiver, wherein the transmitter includes a transmitter coil, and the transmitter transmits energy to the receiver through the transmitter coil, and the receiver includes a receiver coil, and the receiver receives energy through the receiver coil. The receiver can be various mobile terminals, such as smart phones, tablet computers, smart bracelets, etc.

[0070] Before starting the test, set the power supply voltage of the transmitter, fix the transmitter, and then establish a coordinate system to obtain the origin of the coordinates. If the transmitter coil of the transmitter is of a regular shape, the center of the transmitter coil can be used as the origin of the coordinates. If the shape of the transmitter coil is irregular, any point in the transmitter coil can be used as the origin of the coordinates. Set the resistance value of the adjustable load R of the receiver to the rated value R0. A power meter is provided at the transmitter and the receiver respectively, and the power of the transmitter and the receiver is collected in real time through the power meter.

[0071] During the test, since the entire transmitter and receiver include plastic panels, in order to eliminate the influence of the plastic panels, the transmitter coil in the transmitter and the receiver coil in the receiver can be taken out separately, and the receiver coil can be driven to move along different direction axes to obtain the efficiency curve of the wireless charging efficiency in different direction axes. Of course, the present invention is also applicable to the scenario where the coil is not taken out separately but the entire machine is tested.

[0072] Place the receiving end at the origin of the coordinates. Starting from the origin of the coordinates, the test computer controls the XYZ controller so that the XYZ controller drives the receiving end to move along the first direction axis on the first plane. When the receiving end moves, it can move according to the preset step value. Among them, the first plane is the XY plane, the XZ plane, or the YZ plane; when the first plane is the XY plane, the first direction axis is the X axis or the Y axis, the second direction axis is the Y axis or the X axis, and the third direction axis is the Z axis; when the first plane is the XZ plane, the first direction axis is the X axis or the Z axis, the second direction axis is the Z axis or the X axis, and the third direction axis is the Y axis; when the first plane is the YZ plane, the first direction axis is the Y axis or the Z axis, the second direction axis is the Z axis or the X axis, and the third direction axis is the X axis.

[0073] When the receiving end moves along the first direction axis, the two power meters respectively collect the power data of the transmitting end and the receiving end in real time, and send the real-time collected data to the test computer. The test computer calculates the first efficiency curve of the wireless charging system when the receiving end moves along the first direction axis based on the real-time collected power data of the transmitting end and the real-time collected power data of the receiving end; wherein the abscissa of the first efficiency curve is the position point of the receiving end on the first direction axis, and the ordinate is the charging efficiency of the wireless charging system. Similarly, the second efficiency curve of the wireless charging system when the receiving end moves along the second direction axis can be obtained; and the third efficiency curve of the wireless charging system when the receiving end moves along the third direction axis can be obtained.

[0074] After obtaining the first efficiency curve, the second efficiency curve and the third efficiency curve of the wireless charging system, the three efficiency curves can be used to obtain the effective coupling distance and charging efficiency change trends of the wireless charging system on the three direction axes, so as to comprehensively evaluate the performance of the wireless charging system and optimize the performance of the wireless charging system.

[0075] According to a second embodiment of the method for testing charging efficiency of a wireless charging system provided by the present invention, based on the above first embodiment, after step S200, the method further includes:

[0076] According to the first efficiency curve, finding a first position point where the charging efficiency of the wireless charging system is the highest on the first direction axis;

[0077] The receiving end is fixed at the first position point, the output current of the receiving end is adjusted, and a fourth efficiency curve of the wireless charging system under different output currents when the receiving end is fixed at the first position point is obtained.

[0078] After step S300, the following steps are also included:

[0079] According to the second efficiency curve, finding a second position point where the charging efficiency of the wireless charging system is the highest on the second direction axis;

[0080] The receiving end is fixed at the second position point, the output current of the receiving end is adjusted, and a fifth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the second position point is obtained.

[0081] After step S400, the following steps are also included:

[0082] According to the third efficiency curve, finding a third position point where the wireless charging system has the maximum charging efficiency on the third directional axis;

[0083] The receiving end is fixed at the third position point, the output current of the receiving end is regulated, and a sixth efficiency curve of the wireless charging system under different output currents when the receiving end is fixed at the third position point is obtained.

[0084] Specifically, in this embodiment, after obtaining the first efficiency curve graph, the second efficiency curve graph and the third efficiency curve graph, according to the first efficiency curve graph, the first position point where the charging efficiency of the wireless charging system on the first direction axis is the highest is found; according to the second efficiency curve graph, the second position point where the charging efficiency of the wireless charging system on the second direction axis is the highest is found; according to the third efficiency curve graph, the third position point where the charging efficiency of the wireless charging system on the third direction axis is the highest is found.

[0085] If the first direction axis is the X axis, the second direction axis is the Y axis, and the third direction axis is the Z axis, then the coordinates of the first position point are (Xmax, 0, 0), the coordinates of the second position point are (0, Ymax, 0), and the coordinates of the third position point are (0, 0, Zmax).

[0086] The receiving end is driven to a first position point, and the receiving end is fixed at the first position point, and the resistance value of the adjustable load R of the receiving end is adjusted to change the output current of the receiving end. During the adjustment, the current can be gradually increased to the rated current according to a preset step value. At each output current, two power meters respectively collect power data of the transmitting end and the receiving end in real time, and then the fourth efficiency curve of the wireless charging system under different output currents when the receiving end is fixed at the first position point is calculated based on the real-time collected power data of the transmitting end and the real-time collected power data of the receiving end; the abscissa of the fourth efficiency curve is the current, and the ordinate is the charging efficiency.

[0087] Similarly, a fifth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the second position can be obtained; and a sixth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the third position can be obtained.

[0088] After obtaining the fourth efficiency curve, the charging stability of the first position point where the charging efficiency of the wireless charging system is the highest on the first direction axis can be evaluated, that is, whether the charging efficiency will change suddenly during the charging process. After obtaining the fifth efficiency curve, the charging stability of the second position point where the charging efficiency of the wireless charging system is the highest on the second direction axis can be evaluated. After obtaining the sixth efficiency curve, the charging stability of the third position point where the charging efficiency of the wireless charging system is the highest on the third direction axis can be evaluated. Through the above tests, the charging efficiency of the wireless charging system can be comprehensively evaluated.

[0089] According to a third embodiment of a method for testing charging efficiency of a wireless charging system provided by the present invention, Figure 2 As shown, based on the above first embodiment or second embodiment, it also includes:

[0090] S500: finding, according to the first efficiency curve, a first position point where the charging efficiency of the wireless charging system on the first direction axis is the highest;

[0091] S600: finding, according to the second efficiency curve, a second position point where the charging efficiency of the wireless charging system on the second direction axis is the highest;

[0092] S700: finding, according to the third efficiency curve, a third position point at which the wireless charging system has the highest charging efficiency on the third directional axis;

[0093] S800: Acquire a fourth position point at which the charging efficiency of the wireless charging system is the highest according to the first position point, the second position point, and the third position point;

[0094] S900 obtains the charging efficiency of the wireless charging system when the receiving end is at the fourth position.

[0095] Specifically, assuming that the first direction axis is the X-axis, the second direction axis is the Y-axis, and the third direction axis is the Z-axis, the coordinates of the first position point are (Xmax, 0, 0), the coordinates of the second position point are (0, Ymax, 0), and the coordinates of the third position point are (0, 0, Zmax). According to the first position point, the second position point, and the third position point, the coordinates of the fourth position point with the highest charging efficiency of the wireless charging system in three-dimensional space are (Xmax, Ymax, Zmax). The receiving end is fixed at the fourth position point, and two power meters collect the power of the transmitting end and the receiving end respectively, and then the charging efficiency of the wireless charging system is calculated. This embodiment can evaluate the charging efficiency of wireless charging systems of different models from different manufacturers by obtaining the charging efficiency of the wireless charging system at the fourth position point with the highest charging efficiency.

[0096] After the receiving end is fixed at the fourth position point, the resistance value of the adjustable load R of the receiving end can also be adjusted to change the output current of the receiving end. When adjusting, it can be gradually increased to the rated current according to the preset step value. At each output current, the two power meters respectively collect the power data of the transmitting end and the receiving end in real time, and then calculate the seventh efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the fourth position point based on the real-time collected power data of the transmitting end and the real-time collected power data of the receiving end; the abscissa of the seventh efficiency curve is the current, and the ordinate is the charging efficiency. Through the seventh efficiency curve, the charging stability of the wireless charging system when the receiving end is at the fourth position point can be analyzed.

[0097] In actual testing, the order of steps S500, S600 and S700 can be swapped, the order of S300, S400 and S500 can be swapped, and the order of S400 and S600 can be swapped.

[0098] According to a fourth embodiment provided by the present invention, Figure 3 As shown,

[0099] A testing system for charging efficiency of a wireless charging system, comprising:

[0100] The origin acquisition module 100 is used to acquire the coordinate origin;

[0101] A driving module 200 is used to drive the receiving end to move along a first direction axis on a first plane starting from the coordinate origin;

[0102] A curve acquisition module 300, configured to acquire a first efficiency curve of the wireless charging system when the receiving end moves along the first direction axis;

[0103] The driving module 200 is further used to drive the receiving end to move along a second direction axis perpendicular to the first direction axis on the first plane, starting from the coordinate origin;

[0104] The curve acquisition module 300 is further used to acquire a second efficiency curve of the wireless charging system when the receiving end moves along the second direction axis;

[0105] The driving module 200 is further used to drive the receiving end to move along a third direction axis perpendicular to the first plane starting from the coordinate origin;

[0106] The curve acquisition module 300 is further used to acquire a third efficiency curve of the wireless charging system when the receiving end moves along the third direction axis.

[0107] The specific manner in which each module in this embodiment performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0108] According to a fifth embodiment provided by the present invention, Figure 4 As shown,

[0109] A testing system for charging efficiency of a wireless charging system, comprising:

[0110] The origin acquisition module 100 is used to acquire the coordinate origin;

[0111] A driving module 200 is used to drive the receiving end to move along a first direction axis on a first plane starting from the coordinate origin;

[0112] A curve acquisition module 300, configured to acquire a first efficiency curve of the wireless charging system when the receiving end moves along the first direction axis;

[0113] The driving module 200 is further used to drive the receiving end to move along a second direction axis perpendicular to the first direction axis on the first plane, starting from the coordinate origin;

[0114] The curve acquisition module 300 is further used to acquire a second efficiency curve of the wireless charging system when the receiving end moves along the second direction axis;

[0115] The driving module 200 is further used to drive the receiving end to move along a third direction axis perpendicular to the first plane starting from the coordinate origin;

[0116] The curve acquisition module 300 is further used to acquire a third efficiency curve of the wireless charging system when the receiving end moves along the third direction axis.

[0117] Preferably, it further comprises: a search module 400, configured to find a first position point where the charging efficiency of the wireless charging system on the first direction axis is the highest according to the first efficiency curve;

[0118] An adjusting module 500, configured to adjust an output current of the receiving end when the receiving end is fixed at the first position point;

[0119] The curve acquisition module 300 is further used to acquire a fourth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the first position point.

[0120] Preferably, the search module 400 is further used to find a second position point where the charging efficiency of the wireless charging system is the highest on the second direction axis according to the second efficiency curve;

[0121] The regulating module 500 is further used to regulate the output current of the receiving end when the receiving end is fixed at the second position point;

[0122] The curve acquisition module 300 is further used to acquire a fifth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the second position point.

[0123] Preferably, the search module 400 is further used to find a third position point where the charging efficiency of the wireless charging system on the third direction axis is the highest according to the third efficiency curve diagram;

[0124] The regulating module 500 is further used to regulate the output current of the receiving end when the receiving end is fixed at the third position point;

[0125] The curve acquisition module 300 is further used to acquire a sixth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the third position point.

[0126] Preferably, the search module 400 is further used to find a first position point where the charging efficiency of the wireless charging system on the first direction axis is the highest according to the first efficiency curve;

[0127] The search module 400 is further used to find a second position point where the charging efficiency of the wireless charging system is the highest on the second direction axis according to the second efficiency curve;

[0128] The search module 400 is further used to find a third position point where the charging efficiency of the wireless charging system on the third direction axis is the highest according to the third efficiency curve diagram;

[0129] The curve acquisition module 300 is further used to acquire a fourth position point at which the charging efficiency of the wireless charging system is the highest according to the first position point, the second position point and the third position point;

[0130] The curve acquisition module 300 is used to acquire the charging efficiency of the wireless charging system when the receiving end is at the fourth position point.

[0131] The specific manner in which each module in this embodiment performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0132] According to a sixth embodiment provided by the present invention, Figure 5 As shown,

[0133] A test system for charging efficiency of a wireless charging system, comprising a test computer, a transmitter, a receiver, a load, an XYZ controller (drive module) and two power collectors;

[0134] The transmitting end includes a transmitting coil, and the receiving end includes a receiving coil;

[0135] The test computer includes an origin acquisition module, a curve acquisition module, a search module and an adjustment module;

[0136] The test computer controls the XYZ controller according to the acquired origin coordinates, so that the XYZ controller drives the receiving end to move along different direction axes starting from the coordinate origin;

[0137] The two power collectors are used to collect the real-time power of the transmitter and the receiver respectively, and then send the collected real-time power of the transmitter and the receiver to the curve acquisition module, which calculates the efficiency curve of the wireless charging system;

[0138] The search module is used to find the corresponding position point according to the efficiency curve;

[0139] The regulating module is used to adjust the resistance value of the output load.

[0140] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A method for testing charging efficiency of a wireless charging system, characterized in that: include: Get the coordinate origin; Starting from the coordinate origin, driving the receiving end to move along a first direction axis on a first plane, and obtaining a first efficiency curve of the wireless charging system when the receiving end moves along the first direction axis; Starting from the coordinate origin, driving the receiving end to move along a second direction axis on the first plane that is perpendicular to the first direction axis, and obtaining a second efficiency curve of the wireless charging system when the receiving end moves along the second direction axis; Starting from the coordinate origin, driving the receiving end to move along a third direction axis perpendicular to the first plane, and obtaining a third efficiency curve of the wireless charging system when the receiving end moves along the third direction axis; After obtaining the first efficiency curve of the wireless charging system, the method further includes: According to the first efficiency curve, finding a first position point where the charging efficiency of the wireless charging system is the highest on the first direction axis; The receiving end is fixed at the first position point, the output current of the receiving end is adjusted, and a fourth efficiency curve of the wireless charging system under different output currents when the receiving end is fixed at the first position point is obtained.

2. A method for testing charging efficiency of a wireless charging system according to claim 1, characterized in that: After obtaining the second efficiency curve of the wireless charging system, the method further includes: According to the second efficiency curve, finding a second position point where the charging efficiency of the wireless charging system is the highest on the second direction axis; The receiving end is fixed at the second position point, the output current of the receiving end is adjusted, and a fifth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the second position point is obtained.

3. A method for testing charging efficiency of a wireless charging system according to any one of claims 1-2, characterized in that: After obtaining the third efficiency curve of the wireless charging system, the method further includes: According to the third efficiency curve, finding a third position point where the wireless charging system has the maximum charging efficiency on the third direction axis; The receiving end is fixed at the third position point, the output current of the receiving end is regulated, and a sixth efficiency curve of the wireless charging system under different output currents when the receiving end is fixed at the third position point is obtained.

4. The method for testing charging efficiency of a wireless charging system according to claim 1, characterized in that: Also includes: According to the first efficiency curve, finding a first position point where the charging efficiency of the wireless charging system is the highest on the first direction axis; According to the second efficiency curve, finding a second position point where the charging efficiency of the wireless charging system is the highest on the second direction axis; According to the third efficiency curve, finding a third position point where the wireless charging system has the maximum charging efficiency on the third direction axis; Acquire a fourth position point at which the charging efficiency of the wireless charging system is maximum according to the first position point, the second position point and the third position point; The charging efficiency of the wireless charging system is obtained when the receiving end is at the fourth position.

5. A wireless charging system charging efficiency testing system, characterized in that: include: The origin acquisition module is used to obtain the coordinate origin; A driving module, used for driving the receiving end to move along a first direction axis on a first plane starting from the coordinate origin; A curve acquisition module, used to acquire a first efficiency curve of the wireless charging system when the receiving end moves along the first direction axis; The driving module is further used to drive the receiving end to move along a second direction axis perpendicular to the first direction axis on the first plane, starting from the coordinate origin; The curve acquisition module is further used to acquire a second efficiency curve of the wireless charging system when the receiving end moves along the second direction axis; The driving module is further used to drive the receiving end to move along a third direction axis perpendicular to the first plane starting from the coordinate origin; The curve acquisition module is further used to acquire a third efficiency curve of the wireless charging system when the receiving end moves along the third direction axis; A search module, configured to find, according to the first efficiency curve, a first position point where the charging efficiency of the wireless charging system on the first direction axis is the highest; an adjusting module, used for adjusting an output current of the receiving end when the receiving end is fixed at the first position point; The curve acquisition module is further used to acquire a fourth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the first position point.

6. A wireless charging system charging efficiency testing system according to claim 5, characterized in that: Also includes: A search module, configured to find, according to the second efficiency curve, a second position point where the charging efficiency of the wireless charging system on the second direction axis is the highest; an adjusting module, used for adjusting the output current of the receiving end when the receiving end is fixed at the second position point; The curve acquisition module is further used to acquire a fifth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the second position point.

7. A wireless charging system charging efficiency testing system according to any one of claims 5-6, characterized in that: Also includes: A search module, configured to find a third position point where the charging efficiency of the wireless charging system on the third direction axis is the highest according to the third efficiency curve; an adjusting module, used for adjusting the output current of the receiving end when the receiving end is fixed at the third position point; The curve acquisition module is further used to acquire a sixth efficiency curve of the wireless charging system at different output currents when the receiving end is fixed at the third position point.

8. The wireless charging system charging efficiency testing system according to claim 5, characterized in that: Also includes: A search module, configured to find, according to the first efficiency curve, a first position point where the charging efficiency of the wireless charging system on the first direction axis is the highest; The search module is further used to find a second position point where the charging efficiency of the wireless charging system is the highest on the second direction axis according to the second efficiency curve; The search module is further used to find a third position point where the charging efficiency of the wireless charging system on the third directional axis is the highest according to the third efficiency curve diagram; The curve acquisition module is further used to acquire a fourth position point where the charging efficiency of the wireless charging system is the highest according to the first position point, the second position point and the third position point; The curve acquisition module is used to acquire the charging efficiency of the wireless charging system when the receiving end is at the fourth position point.

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