Gear shift control method for electrochromic device, gear shift control device, electrochromic device and readable storage medium

Abstract

To provide a gear shift control method or the like of an electrochromic device for improving user's experience by quickly responding to the need of gear shift and reducing user's waiting time for the shift.SOLUTION: A gear shifting control method includes acquiring a gear characterization parameter state of an electrochromic device in a process of switching from an initial gear before gear shifting to an initial target gear, and obtaining a new target gear when a new gear shifting signal is received, and interrupting a current charging or discharging operation, determining a charging or discharging direction and a corresponding gear characterization parameter adjustment value after the interrupting operation according to the gear characterization parameter state and the initial gear or a new target gear at the interrupting operation, and adjusting the electrochromic device to be switched to the new target gear according to the charging or discharging direction and the gear characterization parameter adjustment value.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present application relates to the technical field of electrochromics, and in particular to a method and apparatus for controlling gear shifting in an electrochromic device, and an electrochromic device. [Background technology]

[0002] This section provides background information related to the present disclosure, but it does not necessarily constitute prior art.

[0003] In the related art, for example, room windows, automobile windshields, etc., always adopt electrochromic materials to realize optical performance switching between different color states. In order to adapt to different application scenarios, the electrochromic device may further be provided with multiple different gears, each gear corresponding to a different light transmittance or reflectance, so that users can adjust it to the most suitable state according to their needs.

[0004] However, some large electrochromic devices typically have a slow color change phenomenon, resulting in a long color change time when changing gears, making it impossible to operate the device during the gear change process. This creates problems during actual gear shifting. For example, if a user accidentally touches the device, they must wait for the color change to be completed before shifting in the opposite direction before being able to return to the original gear. This process takes a significant amount of time and impacts the user's experience. Furthermore, for example, when a user shifts gears (e.g., from 1st gear to 7th gear), shifting to an intermediate gear (e.g., 5th gear) may be sufficient for practical use. However, because electrochromic devices in the prior art cannot be stopped during the gear change process, they must first fully shift to 7th gear and then shift back to 5th gear, resulting in a long waiting time and impacting the user's experience. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of this, the embodiments of the present application provide a gear shift control method, apparatus, and electrochromic device for an electrochromic device that can successfully solve the problem of being unable to stop during the gear shift process, quickly respond to gear switching needs, reduce the user's switching waiting time, and improve the user experience. [Means for solving the problem]

[0006] In a first aspect, embodiments of the present application provide a method for controlling a gear shift in an electrochromic device, the method comprising: The electrochromic device has pre-stored gear characterizing parameter data, the gear characterizing parameter data including corresponding open circuit voltages and charge capacity data for different gears of the electrochromic device, and the acquired gear characterizing parameter state is the open circuit voltage of the electrochromic device; The gear shift control method comprises: During the process of switching from an initial gear to an initial target gear before a gear shift, acquiring a gear characterizing parameter state of the electrochromic device, and when a new gear shift signal is received, acquiring a new target gear and interrupting the current charging or discharging operation; Determining a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation according to a gear characterizing parameter state at the time of the interruption operation, a gear characterizing parameter corresponding to the initial gear, and a gear characterizing parameter corresponding to the new target gear, or a gear characterizing parameter state at the time of the interruption operation and a gear characterizing parameter corresponding to the new target gear; adjusting the electrochromic device to switch to the new target gear according to the charge or discharge direction and the gear characterizing parameter adjustment value; The step of acquiring a gear characterizing parameter state during the interruption operation includes: After waiting for a first preset time period, predicting a stabilized open circuit voltage according to a rate of change of a real-time open circuit voltage of the electrochromic device within the first preset time period to determine a current gear in which the electrochromic device is located during the interruption operation; Alternatively, after waiting a second preset time period, reading a current open circuit voltage of the electrochromic device to determine a current gear in which the electrochromic device is located at the time of the interruption operation may be included.

[0007] In some preferred embodiments, the method for controlling gear shifting using an electrochromic device comprises: During the process of switching from the initial gear before the gear shift to the initial target gear, counting the number of times for each new gear shift signal received, and when it is detected that the count value of the gear shift number is greater than or equal to a preset number threshold, obtaining the secondary target gear corresponding to the gear shift signal when the count value is equal to the preset number threshold; The method may further include determining a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation according to a gear characterizing parameter state corresponding to a gear shift signal when the received count value is equal to the preset number threshold, and a gear characterizing parameter corresponding to the initial gear and a gear characterizing parameter corresponding to the secondary target gear, or according to a gear characterizing parameter state corresponding to a gear shift signal when the received count value is equal to the preset number threshold and a gear characterizing parameter corresponding to the secondary target gear, to directly adjust the electrochromic device to switch to the secondary target gear.

[0008] In some preferred embodiments, the method for controlling gear shifting using an electrochromic device comprises: In the process of switching to the secondary target gear, if at least one new gear shift signal is received again within a unit time, the gear corresponding to the last gear shift signal is set as the final target gear; The method may further include, after switching to the secondary target gear, determining a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation corresponding to the last gear shift signal according to gear characterizing parameters corresponding to the secondary target gear and the final target gear, and adjusting the electrochromic device again so that the electrochromic device can be switched to the final target gear.

[0009] In some preferred embodiments, the acquired gear characterization parameter state may be a real-time charge capacity change value input to or output from the electrochromic device; The step of acquiring a gear characterizing parameter state during the interruption operation includes: reading the real-time charge capacity change value recorded during the interrupted operation; The step of determining a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation according to the gear characterizing parameter state at the time of the interruption operation, the gear characterizing parameter corresponding to the initial gear, and the gear characterizing parameter corresponding to the new target gear, includes: Calculating a charge capacity difference value between the new target gear and the initial gear; It may also include determining whether the direction after the interruption operation is charging or discharging depending on the comparison result between the charge capacity difference value and the real-time charge capacity change value obtained during the interruption operation, and setting the absolute value of the difference value between the charge capacity difference value and the real-time charge capacity change value as the charge capacity adjustment value in the corresponding direction.

[0010] In some embodiments, the step of predicting the stabilized open circuit voltage according to a rate of change of the real-time open circuit voltage of the electrochromic device within the first preset time period comprises: Calculating a corresponding open-circuit voltage change rate within the first preset time according to the interruption open-circuit voltage of the electrochromic device during an interruption operation and the real-time open-circuit voltage of the electrochromic device after the first preset time has elapsed, and determining a correction coefficient for the open-circuit voltage according to the open-circuit voltage change rate; and applying a correction to the real-time open circuit voltage using the correction factor to obtain a corrected open circuit voltage value and determine a predicted open circuit voltage at steady state.

[0011] In some preferred embodiments, the step of determining the correction factor comprises: When the open circuit voltage change rate is equal to or approaching 0, the correction factor is 0; If the open circuit voltage change rate rate is not approaching 0, the correction coefficient may be positively correlated with the absolute value of the open circuit voltage change rate rate.

[0012] In some preferred embodiments, the step of determining a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation according to the gear characterizing parameter state at the time of the interruption operation and the gear characterizing parameter corresponding to the new target gear includes: calculating a charge capacity adjustment value based on the interruption open circuit voltage, including: according to the interruption open circuit voltage of the electrochromic device at the time of the interruption operation and the target open circuit voltage of the new target gear, combining with corresponding open circuit voltage and charge capacity data at different gears of the electrochromic device to determine a charge or discharge direction and a corresponding charge capacity adjustment value after the interruption operation; Alternatively, the method may include calculating a charge capacity adjustment value based on the predicted open circuit voltage or the stable open circuit voltage read after waiting a second preset time period, which includes determining a charge or discharge direction and a corresponding charge capacity adjustment value after the interrupted operation by combining the predicted open circuit voltage or the stable open circuit voltage and the target open circuit voltage of the new target gear with corresponding open circuit voltage and charge capacity data in different gears of the electrochromic device according to the predicted open circuit voltage or the stable open circuit voltage and the target open circuit voltage of the new target gear.

[0013] In some preferred embodiments, the step of calculating the charge capacity adjustment value based on the interruption open circuit voltage comprises: After controlling the charging or discharging of the charge capacity adjustment value, waiting for a third preset time period, when the gear shift signal of the new target gear is received again, obtain the adjusted stable open circuit voltage; determining a required charge capacity replenishment value according to the adjusted stable open circuit voltage and the target open circuit voltage of the new target gear in combination with corresponding open circuit voltage and charge capacity data for different gears of the electrochromic device; and readjusting the electrochromic device in response to the charge capacity replenishment value to reach the new target gear.

[0014] In some preferred embodiments, the method for controlling gear shifting using an electrochromic device comprises: Calculating a difference value between the acquired interrupted open circuit voltage and the target open circuit voltage of the new target gear; If the difference value is within a first preset range, calculating a charge capacity adjustment value based on the predicted open circuit voltage or the stable open circuit voltage; If the difference value is within a second preset range, the method may further include: calculating a charge capacity adjustment value based on the interrupted open circuit voltage; adjusting the electrochromic device according to the charge capacity calculated by the interrupted open circuit voltage; and then adjusting again based on the adjusted stable open circuit voltage, wherein the absolute value of the numerical value in the second preset range is smaller than the absolute value of the numerical value in the first preset range.

[0015] In some preferred embodiments, prior to initiating a shift from an initial gear to an initial target gear, the method for controlling a gear shift of the electrochromic device comprises: Upon detecting receipt of an initial gear shift signal, detecting a current open circuit voltage of the electrochromic device to determine a current actual gear, and setting the current actual gear as an initial gear; The method may further include obtaining the initial target gear from the initial gear shift signal, calculating a difference between the initial target gear and a charge capacity corresponding to the initial gear, and obtaining a charge capacity that needs to be adjusted for shifting from the initial gear to the initial target gear.

[0016] In a second aspect, an embodiment of the present application provides a gear shift control device for an electrochromic device, wherein gear characterizing parameter data is pre-stored in the electrochromic device, the gear characterizing parameter data including open circuit voltages and charge capacity data corresponding to different gears of the electrochromic device, and the acquired gear characterizing parameter state is the open circuit voltage of the electrochromic device, and the gear shift control device comprises: an acquisition module configured to acquire a gear characterizing parameter state of the electrochromic device during a process of switching from an initial gear to an initial target gear before a gear shift, and to acquire a new target gear and interrupt a current charging or discharging operation when a new gear shift signal is received; a determination module configured to determine a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation according to a gear characterizing parameter state at the time of the interruption operation and the initial gear and the new target gear or gear characterizing parameters corresponding to the new target gear; an adjustment module configured to adjust the electrochromic device to switch to the new target gear according to the charge or discharge direction and the gear characterizing parameter adjustment value; The acquisition module: and after waiting for a first preset time period, predicting a stabilized open circuit voltage according to a rate of change of a real-time open circuit voltage of the electrochromic device within the first preset time period, thereby determining a current gear in which the electrochromic device is located during the interruption operation. Alternatively, the device may be further configured to, after waiting a second preset time period, read a current open circuit voltage of the electrochromic device to determine a current gear in which the electrochromic device is located at the time of the interruption operation.

[0017] In a third aspect, embodiments of the present application provide an electrochromic device, the electrochromic device may comprise a processor and a memory, the memory may have a computer program stored therein, and the processor is configurable to execute the computer program to implement the above-described method for controlling gear shifting of an electrochromic device.

[0018] In a fourth aspect, embodiments of the present application provide a readable storage medium having stored thereon a computer program that, when executed on a processor, is capable of implementing the above-described method for controlling a gear shift in an electrochromic device. [Effects of the Invention]

[0019] The embodiments of the present application may have the following beneficial effects: The gear shift control method of the present invention obtains the gear characterizing parameter status of the electrochromic device during the process of switching from the initial gear to the initial target gear before the gear shift, and when a new gear shift signal is received, obtains the new target gear, interrupts the current charging or discharging operation, and directly switches to the new target gear by determining the adjustment direction and gear characterizing parameter adjustment value after the interruption according to the gear characterizing parameter status at the time of interruption and combining it with the gear characterizing parameter corresponding to the new target gear. This method can solve the problem of the gear shift being interrupted, reduce the user's waiting time for switching, speed up the response to the user's gear shift interrupt operation, and improve the user experience. [Brief explanation of the drawings]

[0020] In order to more clearly explain the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope. Those skilled in the art can further derive other related drawings from these drawings without performing any creative work.

[0021] [Figure 1] FIG. 1 is a first flow diagram of a method for controlling gear shifting with an electrochromic device according to some embodiments of the present application. [Figure 2] FIG. 10 is a second flow diagram of a method for controlling gear shifting with an electrochromic device according to some embodiments of the present application. [Figure 3] FIG. 10 is a first flow diagram of a method for controlling gear shifting of an electrochromic device according to some other embodiments of the present application. [Figure 4] FIG. 10 is a second flow diagram of a method for controlling gear shifting using an electrochromic device according to some other embodiments of the present application. [Figure 5] FIG. 10 is a flow diagram of a method for controlling gear shifting with an electrochromic device according to some further embodiments of the present application. [Figure 6] FIG. 10 is a flow diagram of a method for controlling gear shifting with an electrochromic device according to still other embodiments of the present application. [Figure 7] 10A and 10B are structural schematic diagrams of gear shift control devices using electrochromic devices according to some other embodiments of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, the technical aspects of the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application, and it is clear that the described embodiments are only some of the embodiments of the present application and do not represent all of the embodiments.

[0023] Generally, the components of the embodiments of the present application described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the detailed description of the embodiments of the present application in the drawings below is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application. All other embodiments that can be obtained by those skilled in the art based on the embodiments of the present application without the need for creative work are also within the scope of protection of the present application.

[0024] In the following text, the terms "comprise," "have," and their cognates, which may be used in various embodiments of the present application, are intended to merely denote certain features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be understood to exclude the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or the increment of one or more features, numbers, steps, operations, elements, components, or combinations of the foregoing. Furthermore, the terms "first," "second," "third," etc., are merely for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] Unless otherwise specified, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which the various embodiments of the present application belong. The terms (e.g., terms defined in commonly used dictionaries) should be interpreted as having the same meaning as in the context of the relevant technical field, and should not be interpreted as having an idealized or overly formal meaning, unless expressly limited in the various embodiments of the present application.

[0026] Hereinafter, some embodiments of the present application will be described in detail with reference to the drawings. Where there is no contradiction, the following examples and features in the examples may be combined with each other.

[0027] Large-sized electrochromic devices often take a long time to complete their gear shifting. In order to reduce the user's waiting time in situations such as when the user makes a mistaken touch or when the user actually needs to stop the gear shifting, the gear shift control method for an electrochromic device of the present application does not need to first shift to an initial target gear and then to the latest target gear during the gear shifting process. Instead, when a new gear shift signal is received during the gear shifting process, the relevant parameters for characterizing the gear are acquired in real time, and are combined with the corresponding target gear information to realize direct shifting during the gear shifting process, thereby significantly reducing the user's waiting time and ensuring an improved user experience.

[0028] In the present application, multiple gears can be set in an electrochromic device to perform quantization control or the like on the transmittance of the device. For example, multiple gears may be divided according to the degree of change in the transmittance of the electrochromic device. Specifically, the higher the transmittance, the larger the defined gear, i.e., the larger the numerical value corresponding to the gear. Conversely, the lower the transmittance, the smaller the gear, i.e., the smaller the numerical value corresponding to the gear. Furthermore, multiple gears may be divided according to, for example, the state voltage of the electrochromic device, such as the magnitude of the open circuit voltage (OCV). For example, the higher the OCV, the larger the defined gear, and conversely, the lower the OCV, the smaller the gear.

[0029] In addition to the above-mentioned gear classification settings based on parameters such as transmittance and state voltage, other parameters related to the optical performance of the electrochromic device, such as the magnitude of charge capacity Q, can also be used for setting, but this is not limited thereto. When setting the corresponding parameter type, it is understood that data including the gear characterization parameters for different gears are stored in the electrochromic device for reference during subsequent gear shifting. Correspondence may exist between the parameters of the same gear of the electrochromic device. Therefore, users can establish and store correspondences between corresponding parameters for different gears according to specific practical needs, such as establishing a functional relationship between the gear or transmittance, open-circuit voltage OCV, and charge capacity Q. This functional relationship can be obtained by testing the electrochromic device in advance. Another advantage of storing the functional relationship is that it eliminates the need to list the corresponding data for open-circuit voltage and charge capacity for each gear. Furthermore, when calibration of the electrochromic device is required, all data adjustments are not required; only the functional relationship needs to be modified.

[0030] The following description will be given in conjunction with specific examples.

[0031] Next, some embodiments of the present application will be described in detail with reference to the drawings.

[0032] 1 shows a first flow chart of a gear shift control method for an electrochromic device according to an embodiment of the present application. Illustratively, the gear shift control method for an electrochromic device includes steps S110 to S130, which are several major steps such as obtaining the state of a gear characterizing parameter at the time of interruption, determining the gear characterizing parameter adjustment value, and adjusting a new target gear, and each step will be described in detail below.

[0033] Step S110 of acquiring the gear characterizing parameter state during interruption, i.e., during the process of switching from the initial gear to the initial target gear before the gear shift, acquires the gear characterizing parameter state of the electrochromic device, and when a new gear shift signal is received, acquires the new target gear and interrupts the current charging or discharging operation.

[0034] In this embodiment, the electrochromic device stores gear characterizing parameter data related to multiple gear segments, and the aforementioned gear characterizing parameter status is related to the stored gear characterizing parameters. For example, if the stored gear characterizing parameters include charge capacity data corresponding to different gears, the gear characterizing parameter status may be data related to charge capacity, specifically, for example, the change in charge amount input or output to or from the electrochromic device, or the current charge amount of the electrochromic device.

[0035] For example, during the process of performing a gear shift operation, the state of the gear characterizing parameters related to the electrochromic device can be monitored in real time and used for subsequent post-abortion gear adjustment, etc. At the same time, before switching to the initial target gear, it is detected whether a new gear shift signal is received, and if a new gear shift signal is received, a new target gear to be switched to can be obtained from the new gear shift signal, and at the same time, the currently running charging or discharging operation can also be interrupted.

[0036] Wherein, the aforementioned initial gear is the current actual gear before the electrochromic device starts to perform the gear shift operation. In one embodiment, as shown in Figure 2, before starting to switch from the initial gear to the initial target gear, the gear shift control method of the electrochromic device further includes:

[0037] In step S140, if the reception of an initial gear shift signal is detected, the current open circuit voltage of the electrochromic device is detected to determine the current actual gear, and the current actual gear is taken as the initial gear.

[0038] In step S150, obtain an initial target gear from the initial gear shift signal, calculate the difference between the charge capacity corresponding to the initial target gear and the initial gear, and obtain the charge capacity that needs to be adjusted for shifting from the initial gear to the initial target gear.

[0039] For example, when the electrochromic device receives an initial gearshift signal, it can obtain the target gear information carried in the gearshift signal through signal analysis to determine the initial target gear, and then obtain the charge capacity corresponding to each of the initial target gear and the initial gear by referencing the open circuit voltage and charge capacity data corresponding to different gears stored in the electrochromic device.

[0040] Therefore, by calculating the difference in charge capacity between the initial target gear and the initial gear, a charge capacity difference value that needs to be adjusted to switch from the current actual gear to the initial target gear can be obtained. A positive difference value indicates that charging is required, while a negative difference value indicates that discharging is required. Then, adjustment is performed according to the corresponding set control mode depending on the current environmental conditions, such as constant voltage or constant current, but this is not limited to this.

[0041] Step S120 of determining the gear characterizing parameter adjustment value determines the charge or discharge direction and the corresponding gear characterizing parameter adjustment value after the interruption operation according to the gear characterizing parameter state at the time of the interruption operation, the gear characterizing parameter corresponding to the initial gear and the gear characterizing parameter corresponding to the new target gear, or the gear characterizing parameter state at the time of the interruption operation and the gear characterizing parameter corresponding to the new target gear.

[0042] In this embodiment, the charging or discharging direction and the adjustment value of the interrupted gear characterizing parameter are determined according to the state of the gear characterizing parameter at the time of the interruption operation, the gear characterizing parameter corresponding to the initial gear, and the characterizing parameter of the new target gear. In other embodiments, the charging or discharging direction and the adjustment value of the gear characterizing parameter may be determined according to the state of the gear characterizing parameter at the time of the interruption operation and the gear characterizing parameter of the new target gear.

[0043] Wherein, the gear characterizing parameter state at the time of the interruption operation is mainly used to reflect the current state at the time of the interruption operation, and the gear characterizing parameter state at the time of the interruption operation can be acquired in various ways, for example, different gear characterizing parameter states have different acquisition ways, or the same type of gear characterizing parameter state can be acquired in various ways.

[0044] For example, when the gear characterizing parameter state is the real-time charge capacity change value of the electrochromic device, it can be obtained by direct monitoring and calculation, while when the gear characterizing parameter state is the current gear of the electrochromic device, it can also be identified by electrical parameters for characterizing the corresponding gear, which may include, but are not limited to, for example, the current open circuit voltage, the transmittance of the current electrochromic state, and the charge capacity already acquired by the current electrochromic device.

[0045] For example, depending on the acquired gear characterizing parameter state and the gear characterizing parameter corresponding to the corresponding target gear, by comparing the difference between the current state and the target gear state, it can be determined whether to perform charging or discharging after the interruption operation and how much adjustment is specifically required.

[0046] The step S130 of adjusting the new target gear is to adjust the electrochromic device to switch to the new target gear according to the charge or discharge direction and the gear characterizing parameter adjustment value.

[0047] For example, after the corresponding adjustment direction is determined, the state at the time of interruption is used as the adjustment reference, and the corresponding gear characterizing parameter of the electrochromic device is adjusted according to the determined charge or discharge direction. For example, in one embodiment, the gear characterizing parameter adjustment value may be the charge capacity that needs to be replenished or discharged from the electrochromic device.

[0048] In one preferred embodiment, during the gear change process, the OCV can be monitored to directly obtain the current device charge capacity according to the fitting function relationship between the charge capacity and the OCV, and then the difference between this and the capacity of the target gear waiting for change can be calculated to obtain the capacity value that needs to be replenished and the charge / discharge direction. In this case, there is no need to monitor the change in the device charge capacity in real time throughout the entire color change process.

[0049] The gear shift control method of the electrochromic device of this embodiment adds an abort processing logic to the gear shift operation process, thereby obtaining the corresponding target gear information, temporarily suspending charging and discharging, and calculating the charge and discharge charge capacity required to adjust from the current state to the new gear, thereby directly adjusting the charge and discharge. This solves the problem in the prior art that the first target gear must be switched to before the new target gear can be switched to. For the user, this reduces the user's waiting time, speeds up the response to the user's gear shift abort operation, and improves the user experience, especially in cases where mis-contact occurs or real-time gear shifting is required.

[0050] Next, some other embodiments of the present application will be described in detail with reference to the drawings.

[0051] 3 is a second flow chart of a method for controlling gear shifting of an electrochromic device according to an embodiment of the present invention, in which the gear characterizing parameter data mainly includes charge capacity data of the electrochromic device in different gears, etc.

[0052] Illustratively, the electrochromic device gear shift control method includes:

[0053] In step S210, during the process of switching from the initial gear before the gear shift to the initial target gear, the real-time charge capacity change value of the electrochromic device is obtained, and when a new gear shift signal is received, a new target gear is obtained and the current charging or discharging operation is interrupted.

[0054] In step S220, the charging or discharging direction and the corresponding gear characterizing parameter adjustment value after the interruption operation are determined according to the real-time charge capacity change value during the interruption operation and the gear characterizing parameters corresponding to the initial gear and the new target gear.

[0055] Regarding the gear characterizing parameter state during the interruption operation in step S120, in this embodiment, it is mainly the real-time charge capacity change value when the interruption operation of the electrochromic device occurs. For example, the real-time charge capacity change value can be obtained by monitoring the change situation of the charge capacity input to or discharged from the electrochromic device in real time.

[0056] Furthermore, when determining the charge or discharge direction and the corresponding charge capacity adjustment value, the following may be included, as shown in FIG.

[0057] In substep S221, the charge capacity difference value between the new target gear and the initial gear is calculated.

[0058] In sub-step S222, depending on the comparison result between the charge capacity difference value and the real-time charge capacity change value obtained during the interruption operation, it is determined whether the direction is charging or discharging after the interruption operation, and the absolute value of the difference value between the charge capacity difference value and the real-time charge capacity change value is set as the charge capacity adjustment value in the corresponding direction.

[0059] For example, if the charge capacity corresponding to the initial gear S0 is denoted as QS0, the charge capacity corresponding to the new target gear S1 is denoted as QS1, and the real-time charge capacity change value obtained during the pause operation is ΔQ, then the charge capacity difference value TQ1 between the two gears is TQ1=QS1-QS0, and the difference value between the charge capacity difference value TQ1 between the two gears and the real-time charge capacity change value during the pause operation is TQ2=TQ1-ΔQ, and if TQ2 is positive, it indicates that the charge capacity needs to be further replenished, and in this case it is determined to be the charging direction; conversely, it indicates that the charge capacity needs to be discharged, and in this case it is determined to be the discharging direction. Correspondingly, |TQ1-ΔQ| is the charge capacity adjustment value in the corresponding direction.

[0060] When the charge capacity parameter is selected as the basis for gear adjustment, the adjustment value is calculated based on the difference in capacity between the new target gear and the initial gear, and the amount of charge change from the initial gear of the device.It can be seen that by calculating using the same charge capacity standard in this way, the accuracy of the calculation results can be ensured.

[0061] In step S230, the electrochromic device is adjusted to switch to the new target gear according to the charging direction or discharging direction and the charge capacity adjustment value.

[0062] Step S230 is the same as step S130 described above, and therefore will not be repeated here.

[0063] The electrochromic gear shift control method of this embodiment mainly utilizes relevant information such as charge capacity during the gear shift process to realize the gear shift abort operation. Since the capacity is obtained by real-time detection during the charge / discharge process, the charge capacity parameter is selected to characterize the gear shift degree, and the measurement result is accurate in real time. In this way, when a gear is aborted, the gear shift time can be saved and the overall waiting time for the user can be shortened.

[0064] Next, some other embodiments of the present application will be described in detail with reference to the drawings.

[0065] FIG. 5 shows a third flow diagram of a method for controlling gear shifting of an electrochromic device according to an embodiment of the present application.

[0066] In this embodiment, the gear characterizing parameter data mainly includes the open circuit voltage and charge capacity data corresponding to different gears of the electrochromic device. For example, the relationship between the open circuit voltage and charge capacity of the device can be tested in advance, and a functional relationship between the gear / light transmittance, open circuit voltage, and charge capacity can be obtained by function fitting. The data stored in the device can be preferentially the above-mentioned functional relationship, or can be a matrix table or the like consisting of specific data calculated by the above-mentioned functional relationship, and is not limited thereto. The gear characterizing parameter state is the open circuit voltage OCV of the electrochromic device. The open circuit voltage of the electrochromic device can be the real-time open circuit voltage at the current time or the interrupted open circuit voltage at the interrupted time.

[0067] This embodiment is based on the functional relationship between the open circuit voltage and charge capacity corresponding to different gears of the electrochromic device. Specifically, the relationship between the charge capacity of the electrochromic device, the light transmittance (gear) and the OCV exhibits a functional relationship, where the light transmittance is divided into countless gears, and each gear corresponds to one light transmittance and a corresponding OCV. Finally, the relationship function between the capacity and the OCV is JPEG2026004422000002.jpg847 Automatic dimming is achieved using a function, and only one function is listed here. The function may be a linear function, a quadratic function, a quintic function, etc. The specific function selection is mainly determined by the material properties and the compatibility of the function with the actual value. As the device is used, the electrochromic device will age, and at this time, the functional relationships between transmittance, OCV, and capacitance must be re-checked. This functional relationship will be used regardless of the current state or whether the first dimming command has been executed.

[0068] Alternatively, the light transmittance may be divided into 11 gears, each gear corresponding to one OCV, and the charge capacity corresponding to the OCV forms a relationship matrix table.

[0069] In a preferred embodiment, the method comprises: The method further includes an interrupt operation command confirmation step of obtaining a charging / discharging time length for switching from the initial gear to the initial target gear, and receiving a gear shift signal before the charging / discharging time for switching from the initial gear to the initial target gear is completed.

[0070] The command to determine whether the shift from the initial gear to the initial target gear has been aborted includes obtaining the charging / discharging time length of the shift from the initial gear to the initial target gear, obtaining the charged power Q, and if the charged power Q is equal to a preset value and remains unchanged within a first preset time, the shift from the initial gear to the initial target gear is deemed to be completed. For example, in the current charging mode of the shift from the initial gear to the initial target gear, it takes t1 time (30 seconds) for the Q power to be charged (the Q power value is obtained by software, and the charging time is only an example), and after the Q power is charged, the OCV stabilizes after the preset t2 time (60 seconds). Therefore, if a new target gear signal is received within t1 + t2 (30 + 60 = 90 seconds), the shift is deemed to be aborted. Also, the OCV can be read in real time, and if the OCV change value is within a preset range within a preset time, it is considered that the OCV has stabilized and matches the OCV value of OCV1 at the initial target gear (within 60 seconds, the OCV values ​​are both 0.123V). Also, whether or not the operation has been stopped can be determined by measuring how much the Q value has been charged.

[0071] Illustratively, the method for controlling gear shifting of the electrochromic device includes:

[0072] Step S310 of acquiring the gear characterizing parameter status during interruption, i.e., during the process of switching from the initial gear to the initial target gear before the gear shift, acquires the real-time open circuit voltage of the electrochromic device, and when a new gear shift signal is received, acquires the new target gear and interrupts the current charging or discharging operation.

[0073] Step S320 of determining the gear characterizing parameter adjustment value is to determine the charge or discharge direction and the corresponding charge capacity adjustment value after the interruption operation according to the relevant open circuit voltage of the electrochromic device at the time of interruption and the target open circuit voltage corresponding to the new target gear, combined with the corresponding open circuit voltage and charge capacity data of the electrochromic device in different gears.

[0074] Regarding the gear characterization parameter state during the interruption operation described above, in this embodiment, it may be a quantity related to the open circuit voltage of the electrochromic device during the interruption operation. For example, the related open circuit voltage may be the open circuit voltage of the device when it is stable (also called the predicted open circuit voltage) predicted after the interruption operation occurs, or the open circuit voltage measured after waiting for the device to stabilize (also called the stable open circuit voltage), or the open circuit voltage recorded when the interruption operation occurs (also called the interrupted open circuit voltage), etc.

[0075] In one embodiment, the step S310 of acquiring the gear characterization parameter status during the interruption includes recording the interruption open-circuit voltage of the electrochromic device at the time the interruption occurs (referred to as OCV interruption) when acquiring the relevant open-circuit voltage during the interruption operation, waiting a first preset time period, and then predicting the post-stabilization open-circuit voltage according to the rate of change of the real-time open-circuit voltage of the electrochromic device within the preset time period, thereby determining gear information corresponding to the post-stabilization open-circuit voltage, i.e., the current gear information of the electrochromic device at the time of the interruption operation. In this manner, the post-stabilization open-circuit voltage predicted by OCV prediction can be directly obtained, thereby reducing the time the user has to wait for the device to stabilize. Note that this embodiment introduces the functional relationship between charge capacity, light transmittance (gear), and OCV. Therefore, the transmittance of the electrochromic device can be divided into an infinite number of gears, with each OCV corresponding to one gear. After determining the OCV of the electrochromic device, gear information of the electrochromic device at the time of interruption can be obtained.

[0076] The above-mentioned step S310 further includes determining a correction coefficient for the open circuit voltage according to the real-time open circuit voltage when the interruption operation occurs, and predicting the predicted open circuit voltage in the stable state according to the correction coefficient. Specifically, the correction coefficient for the open circuit voltage may be calculated by calculating the change rate within the first preset time according to the currently measured open circuit voltage, or the correction coefficient for the open circuit voltage may be calculated according to the current value of the real-time open circuit voltage.

[0077] Specifically, the OCV change rate (i.e., (OCV real time - OCV interruption) / t1) is calculated based on the interrupted OCV (OCV interruption) when an interruption operation occurs and the real-time OCV (OCV real time) after the first preset time t1 has elapsed, to determine the OCV correction factor K. The real-time OCV is then corrected using the correction factor K, and the corrected OCV value is used as the predicted OCV in the stable state. It can be seen that by introducing the K value for correction, an accurate OCV can be calculated, and a more accurate charge capacity adjustment value can be obtained, ensuring that the OCV is accurately adjusted to the light transmission state corresponding to the target gear.

[0078] Preferably, in addition to using the open circuit voltages at the two times mentioned above, more real-time open circuit voltages can be collected before the device is stabilized, and the average change rate of the open circuit voltage can be calculated, and the stable open circuit voltage after a certain time can be estimated according to the average change rate. Since the real-time open circuit voltage is read without waiting for the device to be completely stabilized, there may be a certain deviation in the read data, and therefore it is understood that the open circuit voltage needs to be corrected.

[0079] In one embodiment, the step of determining the correction factor K includes: if the open circuit voltage change rate is equal to or close to 0, the correction factor K is 0; if the open circuit voltage change rate is not equal to 0, i.e., there is a large deviation from 0, the correction factor K is positively correlated with the absolute value of the change rate, i.e., the larger the absolute value of the slope, the larger the value of K. It can be seen that if the open circuit voltage change rate is equal to or close to 0, the shift from the initial gear to the initial target gear has been completed or is nearly completed, and it can be shown that using the slope to correct the OCV value can be applied not only to the control logic for the abort, but also to the control logic for the entire electrochromic device. For example, if the first shift from the initial gear to the target gear has already been completed, the OCV change rate will approach 0 after stabilization, and the correction coefficient K for the real-time open-circuit voltage will be 0. On the other hand, if the first shift from the initial gear to the target gear has not yet been completed, the OCV is not stable, so a correction value is calculated according to the OCV change rate and used to predict the open-circuit voltage when the device is stable. Therefore, the use of the OCV change rate not only allows the electrochromic device to quickly reach the new target gear after interruption, but also applies to the control logic of the entire electrochromic device, so that the shift from the initial gear to the initial target gear can be completed without the need for separate control logic, and even the next interrupt command can be operated before the shift from the initial gear to the initial target gear is completed. The control logic of the entire system is simple, easy to implement, and simple to calculate. By simply selecting a specific control method based on the relationship between OCV and QT and the real-time change in the open circuit voltage value, any gear shift can be completed, and a new target gear can be quickly reached when the initial gear shift is not completed, thereby improving the user experience.

[0080] In another embodiment, since the OCV value tends to decay over time and stabilize after a certain period of time after an interruption occurs, the method further includes obtaining OCV values ​​corresponding to at least two points in time within a first preset time and constructing a decay function of OCV versus time t, from which the magnitude of the K value can be determined. Therefore, in the pre-stored decay function of OCV versus time t, the corresponding K value can be calculated at the start of correction at any time t after the interruption. For example, since a typical device stabilizes 2 minutes (120 seconds) after an interruption, a decay function of OCV versus time t within 2 minutes (5 minutes or a longer time may be set for more accurate data) is constructed, and correction is not performed immediately after the interruption, but rather after waiting 10 seconds. Therefore, the magnitude of the K value can be determined according to the slope of the 10-second portion of the decay function of OCV versus time t. This method has the advantage that when the gap between the OCV interruption and the target OCV value at the time of stopping is large and requires a long time for stabilization, the OCV value can be calculated by first stabilizing and then automatically correcting it according to the stabilization time, and then calculating the actual gap OCV value. This method is convenient and accurate, and accurately achieves the target gear. Also, the decay function corresponding to the OCV may be different at different temperatures. Also, the area of ​​the electrochromic device may be different, so the corresponding OCV decay function may be different. The present invention uses a decay function that can fit the OCV over time according to the rate of change corresponding to a certain time, thereby realizing prediction of the OCV. JPEG2026004422000003.jpg723 This allows the electrochromic device to reach the target change rate faster and more accurately during the interruption process, reducing the user's waiting time and improving the user's experience.

[0081] Generally, when an electrochromic device is interrupted, the OCV interruption usually begins to gradually stabilize after a preset time, for example, 2 seconds from the time of interruption (in other embodiments, the time at which the OCV begins to stabilize varies depending on the area of ​​the electrochromic device and the current temperature). Therefore, a linear fitting is performed on the OCV change value within 2 seconds, and then the current real-time OCV is measured again after 2 seconds, and the magnitude of the K value is determined according to the real-time OCV after 2 seconds and the rate of change of OCV within 2 seconds. Specifically, taking a 300mm x 300mm device as an example, charging at 25°C is performed in the charging direction during the interruption operation, and the interrupted open-circuit voltage is read during the interruption operation, and the real-time open-circuit voltage is read within 2 seconds after the interruption operation, and the function JPEG2026004422000004.jpg621 The K value is affected by the magnitude of the rate of change a. During charging, the OCV is typically high at the time of interruption, and then begins to decay until the OCV stabilizes; therefore, the a value is negative. Referring to Table 1 below, if the OCV change rate a within 2 seconds is greater than or equal to -0.017, the K value compensation is 0.05V. If the a value is greater than or equal to -0.03 but less than -0.017, the K value compensation is 0.09V. If the a value is less than -0.03, the rate of change is high, and the corresponding K value compensation is 0.13V. The decay functions of OCV and time t under discharge and other conditions are different, and the rate of change is not the same; however, the general principles can be understood from the above, and will not be repeated here.

[0082] [Table 1]

[0083] In this embodiment, the process waits for 2 seconds to calculate the correction coefficient K that needs to be corrected, and then compensates the OCV value using the correction coefficient. This allows the electrochromic device to quickly reach the target transmittance without having to wait for a long stabilization time, thereby reducing the user's waiting time and improving the user experience.

[0084] In this embodiment, when the change rate of the OCV within the first preset time is used to confirm the correction coefficient of the open-circuit voltage to predict the open-circuit voltage in a stable state, and the correction coefficient is applied to the entire gear shift logic, a specific method includes: when a dimming command is received, obtaining the current actual open-circuit voltage, obtaining the real-time open-circuit voltage within the first preset time, calculating the change rate of the real-time open-circuit voltage within the first time, determining a correction value of the real-time open-circuit voltage according to the change rate of the real-time open-circuit voltage, and calculating a target open-circuit voltage corresponding to the dimming command according to the correction value of the real-time open-circuit voltage.

[0085] In other embodiments, the OCV decay trend over time is generally the same, so the K value is selected according to the magnitude of the current real-time open-circuit voltage (OCV real time), i.e., the open-circuit voltage correction parameter can be determined according to the magnitude of the current OCV real time. For example, if the absolute value of the OCV real time is less than a first preset value (e.g., 1 V), the K value is 0; if the OCV real time is greater than a second preset value (e.g., +1 V), the K value is negative; and if the OCV real time is less than a third preset value (e.g., -1 V), the K value is positive. Different ranges and magnitudes of OCV real time result in different OCV deviations. Therefore, selecting different K values ​​to obtain more accurate OCV is advantageous for faster adjustment to the dimming state corresponding to the required target gear. In addition, the sign of the K value is related to the charge or discharge direction. If the new target gear is in the charge direction, the K value is negative, and if the charge direction is discharge, the K value is positive. In other words, when a gear shift to a new target gear is required, it is first determined whether the new target gear is in the charge or discharge direction. If it is in the charge direction, the absolute value of the K value is subtracted from the current OCV value; if it is in the charge direction, the absolute value of the K value is added to the current OCV value.

[0086] In some other embodiments, the decay trend of OCV over time is similar, but the correspondence between the K value and the measured value of different OCVs is not similar. The relationship between a specific OCV and the K value can be expressed as a matrix table. For example, Table 2 shows the OCV data measured during the charge / discharge of an electrochromic device. As can be seen from this, during the charge / discharge process, the OCV value changes at the same temperature, and the corresponding K value is different for different OCV ranges. Also, for example, during the discharge process, the corresponding K values ​​for different OCV ranges at different temperatures (e.g., 25°C and 85°C) may or may not be the same.

[0087] [Table 2]

[0088] Specifically, at 25°C, for example, the corresponding new target gear needs to be charged, and the OCV at the time of interruption is 0.8V, then the corresponding corrected OCV = 0.8 - 0.05 = 0.75(V), and 0.75(V) is used in conjunction with the relationship between capacity and OCV to obtain the current gear; for example, the corresponding new target gear needs to be discharged, and the measured OCV is -0.8, then the corrected OCV = -0.8 - 0.18 = -0.98(V), and -0.98(V) is used in conjunction with the relationship between capacity and OCV to obtain the current gear.

[0089] In another embodiment, step S310 of acquiring the gear characterizing parameter status during interruption includes acquiring the relevant open-circuit voltage during interruption to determine the current gear in which the electrochromic device is located during interruption. Alternatively, a second preset time period greater than the first preset time period may be waited, i.e., for the device to stabilize, before directly reading the current open-circuit voltage of the electrochromic device to determine the current gear in which the electrochromic device is located during interruption. For example, the first preset time period may be 30 seconds, and the second preset time period may be 60 seconds, 100 seconds, etc., and may be set according to actual needs and are not limited thereto. Generally, for a one-square-meter blue color-changing device, the OCV tends to stabilize after waiting two minutes after interruption. The OCV stabilization time is related to the material system of the device and is positively correlated with the area of ​​the electrochromic device.

[0090] Due to the characteristics of electrochromic devices, when a constant voltage is continuously applied, the potential distribution on the transparent conductive electrodes is not uniform. The potential near the two poles where the power is input is high, so the areas at both poles of the power source will change color first. On the other hand, the internal resistance of the transparent conductive electrodes is high and the potential at positions far from the electrodes is low, so the color-changing material cannot have enough voltage to react. At this time, the transmittance of the areas at both poles and the color change of the central area will not match. Therefore, without a longer waiting time, the center will gradually reach the required transmittance, and the transmittance of the entire electrochromic device will not tend to match.

[0091] It can be understood that waiting for a certain period of time is to allow the charge to be distributed evenly across the device, thus obtaining a more accurate OCV value to determine the current gear. The longer the waiting time, the more evenly the charge will be distributed across the device, so at this time, the more accurate the current gear will be by directly reading the open circuit voltage after it has stabilized.

[0092] Note that any one preset time period set here is much shorter than the waiting time between the initial target gear shift and the new target gear shift of the electrochromic device. For example, the time required for a large electrochromic device to complete a color change from gear 1 to gear 5 typically exceeds one minute, and may even be longer. In this case, the preset time period may be selected as a value within the range of 10 to 20 seconds. It should be understood that the selection of the first and second preset time periods can be determined based on the actual color change size or area of ​​the device. It should be understood that the color change area of ​​the device may be pre-stored in the electrochromic device before shipping.

[0093] In one embodiment, step S320 includes calculating a charge capacity adjustment value based on the predicted or stable open-circuit voltage. Specifically, it includes determining the charge or discharge direction and the corresponding charge capacity adjustment value after the interruption operation based on the predicted or stable open-circuit voltage and the target open-circuit voltage of the new target gear, in combination with the corresponding open-circuit voltage and charge capacity data for different gears of the electrochromic device. For example, the actual current gear at the time of the interruption operation can be determined based on the stable open-circuit voltage, and the charge or discharge direction after the interruption operation can be determined based on the gear sizes of the new target gear and the current gear. For example, if the new target gear is larger than the current gear, it is determined to be the charge direction, and conversely, it is the discharge direction. The difference between the target open-circuit voltage and the stable open-circuit voltage is then calculated, and the open-circuit voltage difference value can be substituted into the above-mentioned functional relationship to calculate the corresponding required charge capacity adjustment value.

[0094] In step S330 of adjusting a new target gear, the electrochromic device is adjusted to switch to the new target gear according to the charging direction or discharging direction and the charge capacity adjustment value.

[0095] Step S330 is the same as step S130 described above, and therefore will not be repeated here.

[0096] In addition, considering that obtaining the real-time open-circuit voltage still requires waiting at least the first preset time period mentioned above, this embodiment also proposes another adjustment mode based on the open-circuit voltage, i.e., calculating the charge capacity adjustment value according to the interruption open-circuit voltage when an interruption operation occurs. That is, combining the interruption open-circuit voltage with the function of OCV and charge Q to calculate the theoretical charge amount, and first adjusting to the new target gear. After waiting for a stabilization time to obtain a stable OCV, the OCV after stabilization and the OCV of the target gear are used to calculate the difference OCV, and then compensation is performed in the form of secondary adjustment, so that the new target gear can be reached as well. In this adjustment mode, by first charging to a certain amount Q, the electrochromic device will first change color toward the dimming state of the new target gear, and first adjust to the dimming state of the new target gear from the visual perspective. The user will wait for the last slight difference during the current stabilization period before performing stepless dimming, which will reduce the visual difference change for the user and allow the user's eyes to gradually adapt to changes in light, improving the user experience.

[0097] The relevant open-circuit voltage during the interruption operation in step S320 may refer to the interruption open-circuit voltage read immediately when the interruption operation occurs. In another embodiment, step S320 includes the steps of calculating a charge capacity adjustment value based on the interruption open-circuit voltage, adjusting the charge capacity of the electrochromic device according to the calculated charge capacity based on the interruption open-circuit voltage, and then adjusting it again based on the adjusted stable open-circuit voltage, specifically: According to the interruption open circuit voltage of the electrochromic device at the time of the interruption operation and the target open circuit voltage of the new target gear, the corresponding open circuit voltage and charge capacity data of the different gears of the electrochromic device are combined to determine the charge or discharge direction and the corresponding charge capacity adjustment value after the interruption operation. For example, if the interruption open circuit voltage read at the time of the interruption is designated as OCV interruption and the target open circuit voltage is designated as OCV target, then the charge capacity adjustment value is ΔOCV=OCV target-OCV interruption, i.e., the charge capacity that needs to be adjusted is ΔOCV. By combining the corresponding open circuit voltage and charge capacity data of the different gears of the electrochromic device, the required charge ΔQ corresponding to ΔOCV can be determined.

[0098] Because the immediately read interruption open-circuit voltage is not accurate, after the initial adjustment of the electrochromic device according to the charge capacity calculated by the interruption open-circuit voltage, further adjustment is required. Therefore, after controlling the charging or discharging of the charge capacity adjustment value ΔQ, the re-adjustment includes waiting for a third preset time period and then, when a new target gear shift signal is received again, obtaining the current adjusted stable open-circuit voltage, combining the adjusted stable open-circuit voltage and the target open-circuit voltage of the new target gear with the corresponding open-circuit voltage and charge capacity data of the electrochromic device in different gears to determine the required charge capacity replenishment value, and re-adjusting the electrochromic device according to the charge capacity replenishment value to reach the new target gear.

[0099] For example, the charge / discharge adjustment for the device is controlled according to the charge capacity adjustment value ΔQ calculated based on the interrupted open circuit voltage. For example, after the second preset time period t2, when the open circuit voltage tends to stabilize and the current stable open circuit voltage is marked as OCV stable, by re-sending a gear shift command for the same new target gear once, the device can calculate the currently existing open circuit voltage difference value OCV target - OCV stable = ΔOCV replenishment according to the difference value between the stable open circuit voltage OCV stable and the OCV target. Therefore, by substituting ΔOCV replenishment into the above-mentioned functional relationship, the required charge capacity replenishment value ΔQ replenishment can be calculated and obtained, and the charge capacity replenishment can be controlled to reach the new target gear.

[0100] Preferably, when the charge capacity is replenished, the magnitude of the charge capacity replenishment value ΔQ can be determined (or linked to the current device or environmental temperature, etc.) to determine the corresponding charge / discharge mode, so that the charge capacity is replenished according to an appropriate mode. Therefore, in one embodiment, before adjusting the electrochromic device again according to the charge capacity replenishment value, the method further includes determining a corresponding charge or discharge mode according to the magnitude of the charge capacity replenishment value. For example, the charge or discharge mode may include the following several situations:

[0101] (1) When the charge capacity replenishment value ΔQ replenishment is greater than the first preset value, the charge or discharge of the charge capacity replenishment value ΔQ replenishment is controlled according to the preset large current method, that is, it indicates that there is a large gap between the charge capacity required for the new target gear. Therefore, by adopting the large current method to directly charge the ΔQ replenishment, the target gear can be reached quickly and the user's visual error can be reduced.

[0102] (2) When the charge capacity replenishment value ΔQ replenishment is located between the first preset value and the second preset value, the charge capacity replenishment value ΔQ replenishment is divided evenly into N equal parts, and the same charge capacity ΔQ replenishment / N is charged or discharged each time until the adjustment is completed, where N≧1, and the first preset value is smaller than the second preset value, and charging the same amount each time can be understood to give the user a gradual and slowly changing visual effect, reducing the visual impact, etc.

[0103] (3) If the charge capacity replenishment value ΔQ replenishment is smaller than the second preset value, the charge or discharge of the charge capacity replenishment value ΔQ replenishment is controlled according to the preset small current method or the current gradually decreasing method, that is, it indicates that the charge capacity difference value between the current gear and the new target gear is small, so that the magnitude of the current I is limited to avoid overcharging or over-discharging caused by excessive current, for example: Refilling can be performed according to the method of JPEG2026004422000007.jpg619 to avoid overcharging or over-discharging caused by excessive current. Therefore, the smaller I is, the longer the charge / discharge time will be, which will achieve the effect of gradual dimming and reduce the difference in visual sensation experienced by the user.

[0104] The preset large current method in the above-mentioned situation (1) is compared with the preset small current method in the situation (3), that is, in the situation (1), the current value for replenishing the charge capacity is larger than the current value in the situation (3), and it is understood that the magnitude of the difference between these two currents can be specifically set according to actual needs and is not limited here. By selecting the Q value charging method according to the magnitude of the OCV replenishing value, it is possible to quickly reach the new target gear when necessary, and also to maximally reduce the user's visual error and enhance the user's experience.

[0105] In addition, in comparison with the above-mentioned two adjustment modes, i.e., first obtaining a predicted open-circuit voltage or a stable open-circuit voltage, which is the open-circuit voltage read after waiting a second preset time of the device, and then calculating a charge capacity adjustment value according to the predicted open-circuit voltage or the stable open-circuit voltage to perform a single adjustment, and the mode of first calculating a charge capacity adjustment value based on the interrupted open-circuit voltage when an interruption operation occurs and then performing another adjustment after the first adjustment, as a preferred mode, this embodiment can select one of these modes according to specific circumstances before adjustment to improve adjustment efficiency, etc. Of course, preferably, after adjustment using one of these modes, subsequent adjustments can be performed in combination with the other mode.

[0106] In one embodiment, the gear shift control method for an electrochromic device further includes the following execution selection step: calculating a difference between the interruption open circuit voltage (OCV interruption) obtained when an interruption operation occurs and the target open circuit voltage (OCV target) of the new target gear; and if the difference (i.e., ΔOCV = OCV target - OCV interruption) is within a first preset range, executing a step of calculating a charge capacity adjustment value based on the predicted open circuit voltage, i.e., executing a correction step for the OCV real time. Since the OCV interruption at this time is far from the target OCV, selecting to wait for a second preset time will lengthen the stabilization time, causing the user to wait for a long time and affecting the user's experience.

[0107] If the difference value is within a second preset range, a step of calculating a charge capacity adjustment value based on the interruption open circuit voltage is performed, and the electrochromic device is adjusted according to the charge capacity calculated by the interruption open circuit voltage, where the absolute value of the value in the second preset range is smaller than the absolute value of the value in the first preset range. By selecting and using different adjustment methods according to the magnitude of the interruption open circuit voltage OCV interruption, the desired dimming effect can be achieved more quickly.

[0108] For example, if the initial target gear is 11 gear, with a corresponding OCV of 0.13V, and an interrupt operation occurs, the currently monitored interrupt open-circuit voltage is 0.11V (not a stable value, but a value that tends to stabilize over time), and the new target gear is 10 gear, with a corresponding OCV of 0.12V, it can be determined that the interrupt open-circuit voltage (OCV interrupt) at this time is very close to 0.12V (the difference between OCV interrupt and 0.12V is no more than approximately 0.01V). Therefore, to reach the new target gear (10 gear), it is possible to first directly adjust based on the current interrupt open-circuit voltage, and then perform secondary fine adjustment based on the OCV deviation after adjustment. In other words, when the process of switching from the initial gear to the initial target gear is almost complete, the actual OCV value is actually very close to the new target value, so no adjustment is required and it can be directly calculated or added based on the current value, thereby speeding up the switching speed from the initial gear to the new target gear.

[0109] Also, for example, if the new target gear is 5 gears with a corresponding OCV of 0.7V, or 15 gears with a corresponding OCV of 0.2V, it can be seen that the gap between the interrupted open circuit voltage (OCV interruption) and 0.2V (or 0.7V) at this time is large. Therefore, in order to reach the new target gear (5 gears or 15 gears), the operation of calculating the charge capacity adjustment value based on the stable open circuit voltage obtained by prediction or after waiting for a certain period of time as described above can be preferentially selected.

[0110] In addition, since the predicted stable open circuit voltage has not yet accurately reached the target value after charging or discharging, it is possible to detect whether the transmittance has reached the preset value at this time, and if not, a new target gear command is sent at this time, the stabilized open circuit voltage is obtained, the amount of charge that needs to be replenished is confirmed, and the charging of the amount of charge to be replenished is controlled. Therefore, after the step of calculating the charge capacity adjustment value based on the predicted stabilized open circuit voltage is completed, it is determined whether the current transmittance is equal to the target transmittance, and if not, the target gear command is sent again, the stabilized open circuit voltage is obtained, the amount of charge that needs to be replenished is confirmed, and the charging of the amount of charge to be replenished is controlled.

[0111] The gear shift control method of the electrochromic device of this embodiment realizes the abort operation during the gear shift process by combining the open circuit voltage and charge capacity together during the gear shift process. When the open circuit voltage is used to acquire the current gear, a certain delay is made to determine whether to correct the current OCV value according to the K value, wait for it to stabilize directly, or first adjust it and then replenish the charge. By considering various aspects and selecting the optimal method, a faster and more accurate stable open circuit voltage can be obtained, and more accurate gear adjustment information can be obtained.

[0112] In some other embodiments, before the selection step is performed, the process determines whether the absolute value of the OCV interruption value is greater than a preset value, and determines whether the charging direction corresponds to the preset charging direction or whether the difference between the OCV interruption value and the OCV target value is less than the preset value. If yes, the process waits a second preset time, and then performs a step of calculating a charge capacity adjustment value based on the stable open-circuit voltage after the device has stabilized. Referring to Table 2 above, during the charging process, if the OCV value is between 0.7 and 0.9 V, the adjustment value is small and need not be considered, regardless of whether the temperature is 25°C or 85°C. At this time, the OCV is considered to be less attenuated and therefore more likely to reach a stable value. In this case, directly waiting for stability can achieve the desired effect more quickly, improving the user experience.

[0113] By utilizing the open circuit voltage of the electrochromic device as a gear characterization parameter state, this embodiment can more accurately and quickly adjust the electrochromic device to reach a new target gear, reducing user wait time and enhancing the user experience. Taking room temperature 25°C as an example, the flow of this embodiment is as follows: when an initial target gear command is received, the charge / discharge of the electrochromic device is controlled according to the OCV-QT functional relationship; when a command to switch to a new target gear is received before the initial gear has been switched to the initial target gear, the interruption open-circuit voltage of the electrochromic device at this time is obtained, and the absolute value of the OCV interruption is determined to be greater than a preset value; if it is greater than the preset value and in the charging direction, the second preset time is waited to stabilize the open-circuit voltage; if it is not greater than the preset value, the difference between the interruption open-circuit voltage OCV interruption and the target open-circuit voltage OCV target of the new target gear is determined to be within a first preset range; if it is within the first preset range, the OCV correction value is calculated and the stabilized open-circuit voltage is predicted according to the correction value; if the difference value is within a second preset range, the interruption open-circuit voltage is used to first charge and then replenish the charge. This embodiment utilizes the OCV value of the device at the time of interruption, considers multiple aspects, and integrates the calculation of each parameter to obtain the optimal gear characterization parameter adjustment value, which can adjust to the new target gear faster and more accurately, reduce the user's waiting time, and improve the user experience.

[0114] Next, further embodiments of the present application will be described in detail with reference to the drawings.

[0115] FIG. 6 shows a flow diagram of a method for controlling gear shifting of an electrochromic device according to an embodiment of the present invention.

[0116] Based on the method described in any of the above embodiments, this embodiment further includes the addition of limiting the number of gear shifts to avoid situations where there is excessive adjustment and further damaging the lifespan of the device.

[0117] Illustratively, as shown in FIG. 6, the electrochromic device gear shift control method further includes:

[0118] In step S410, during the process of switching from the initial gear before the gear shift to the initial target gear, the number of times is accumulated for each new gear shift signal received, and if it is detected that the count value of the gear shift times is greater than or equal to the preset number threshold, the secondary target gear corresponding to the gear shift signal when the count value is equal to the preset number threshold is obtained.

[0119] For example, a gearshift count can be set, and each new gearshift signal detected during the gearshift operation can be counted incrementally. Each time the count is increased by 1, it is determined whether the count reaches a preset threshold. If so, the corresponding secondary target gear is obtained from the gearshift signal when the count is equal to the preset threshold. Typically, the secondary target gear and the previous initial target gear represent two different gears to be reached.

[0120] In step S420, according to the gear characterizing parameter state corresponding to the gear shift signal when the received count value is equal to the preset number threshold, the gear characterizing parameter corresponding to the initial gear, and the gear characterizing parameter corresponding to the secondary target gear, or according to the gear characterizing parameter state corresponding to the gear shift signal when the received count value is equal to the preset number threshold and the gear characterizing parameter corresponding to the secondary target gear, determine the charging or discharging direction after the interruption and the corresponding gear characterizing parameter adjustment value, and directly adjust the electrochromic device to switch to the secondary target gear.

[0121] For the step of directly adjusting the secondary target gear, reference can be made to the corresponding step in the above embodiment, and the description will not be repeated here.

[0122] In this embodiment, if another target gear waiting to be switched is determined before the new target gear is reached, it can be understood that the electrochromic device can be controlled to adjust to the secondary target gear directly during the switching process. By limiting the number of times the device is stopped, it is possible to meet the user's need to adjust the device in real time while reducing excessive adjustment due to slow color change.

[0123] In addition, in consideration of the fact that in the actual gear shifting process, due to the user's excessive operation, multiple triggers of gear shifting operations may occur within a short period of time, in order to reduce damage to the device and avoid the user's ignoring of the operation instructions, this embodiment further processes multiple gear shift signals within a short period of time to meet the needs of some specific scenarios.

[0124] Preferably, the method for controlling gear shifting of an electrochromic device further includes:

[0125] In step S430, if at least one new gear shift signal is received again within a unit time during the process of switching to the secondary target gear, the gear corresponding to the last gear shift signal is set as the final target gear, for example, the unit time may be 1 s, 2 s, or 3 s, and the specific value may be set according to actual needs.

[0126] In step S440, after switching to the secondary target gear, the charging or discharging direction and the corresponding gear characterizing parameter adjustment value after the interruption operation corresponding to the last gear shift signal are determined according to the gear characterizing parameters corresponding to the secondary target gear and the final target gear, and the electrochromic device is adjusted again so that it can be switched to the final target gear.

[0127] For example, if the secondary target gear is the gear for the third gearshift operation, when the third gearshift operation is not yet completed and more gear signals, for example, the fourth or fifth gearshift signal, are detected again, the device will record each gearshift signal but will not perform a gearshift abort operation, and will continue to complete the charging and discharging of the third abort. When the third gearshift is completed, the device will change the color of the last recorded gearshift abort signal to the target gear.

[0128] During an actual gear shift, there is a time lag between the user's gear adjustment and the device reaching the target gear. Therefore, the user is likely to misjudge the actual effect of the target gear before reaching the target gear and make a gearshift abort adjustment. This can be understood as an excessive adjustment situation, which adversely affects the user's experience. For example, the user only needs a moment to complete the gearshift operation from gear 1 to gear 5, but the device requires 1 minute to complete the color change to gear 5, resulting in a time lag. At 30 seconds, the device changes color between gears 3 and 4. However, the user misjudges the color change effect of gear 5 based on the current color change effect of the device (in fact, gear 5 fully meets the user's needs) and makes an abort adjustment (e.g., shifts to gear 7). This can be an excessive adjustment, which is likely to affect the user's experience.

[0129] Therefore, if the user is not familiar with the discoloration of each gear, the gear may be stopped multiple times, preventing the user from accurately and quickly adjusting to the most appropriate gear and causing damage to the device's lifespan. The gear shift control method for an electrochromic device according to this embodiment limits the number of stops during gear shifting, allowing the user to quickly adjust to the most appropriate gear while minimizing damage to the device.

[0130] Next, some other embodiments of the present application will be described in detail with reference to the drawings.

[0131] FIG. 7 shows a structural schematic diagram of the electrochromic gear shift control device according to this embodiment.

[0132] In this embodiment, the electrochromic device has gear characterizing parameter data pre-stored therein, and illustratively, the electrochromic device gear shift control device 100 includes: an acquisition module 110 configured to acquire gear characterizing parameter status of the electrochromic device during the process of switching from an initial gear to an initial target gear before a gear shift, and to acquire a new target gear and interrupt a current charging or discharging operation when a new gear shift signal is received; a determination module 120 configured to determine a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation according to a gear characterizing parameter state at the time of the interruption operation, and the initial gear and the new target gear or gear characterizing parameters corresponding to the new target gear; an adjustment module (130) configured to adjust the electrochromic device to switch to the new target gear according to the charge or discharge direction and the gear characterizing parameter adjustment value.

[0133] The device of this embodiment corresponds to the embodiment of the method for controlling gear shifting of an electrochromic device described above, and it can be understood that the options in the above embodiment also apply to this embodiment, and therefore will not be repeated here.

[0134] The present application further provides an electrochromic device, which may be an integrated device equipped with an electrochromic material, such as a dimming window, an automobile windshield, etc. Exemplarily, the electrochromic device includes a processor and a memory, in which a computer program is stored, and the processor runs the computer program to cause the electrochromic device to perform the functions of each module in the above-mentioned electrochromic device gear shift control method or the above-mentioned electrochromic device gear shift control device.

[0135] The present application further provides a computer-readable storage medium configured to store the computer program for use in the above-described electrochromic device.

[0136] It should be understood that in some embodiments of the present application, the disclosed apparatus and method may be implemented in other ways. The apparatus embodiments described above are merely schematic, and for example, the flow charts and structure diagrams in the drawings illustrate possible system architectures, functions, and operations of apparatuses, methods, and computer program products according to various embodiments of the present application. In this regard, each block in the flow charts or block diagrams may represent a module, program segment, or portion of code, which includes one or more executable instructions for implementing a given logical function. In some alternative implementations, the functions depicted in the blocks may occur in a different order than depicted in the drawings. For example, it should be noted that two consecutive blocks may actually be executed essentially in parallel, and may even be executed in the reverse order, depending on the functionality involved. It should also be noted that each block in the structure diagrams or flow diagrams, and combinations of blocks in the structure diagrams or flow diagrams, may be implemented in a dedicated hardware-based system that performs a given function or operation, or in a combination of dedicated hardware and computer instructions.

[0137] Furthermore, each functional module or unit in each embodiment of the present application may be integrated together to form a single independent part, each module may exist independently, or two or more modules may be integrated to form a single independent part.

[0138] The functions may be stored in a single computer-readable storage medium if they are realized in the form of software functional modules and sold or used as an independent product. Based on this understanding, an essential part of the technical aspects of the present application, a part that contributes to the prior art, or a part of the technical aspects may be embodied in the form of a software product, and the computer software product is stored in a storage medium and includes several instructions that cause a computer device (which may be a smartphone, personal computer, server, network device, etc.) to execute all or some of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes various media capable of storing program code, such as a USB memory, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0139] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. [Industrial Applicability]

[0140] In light of the above, the present application provides a method, apparatus, and electrochromic device for controlling gear shifting of an electrochromic device, which can more accurately and quickly adjust the electrochromic device to reach a new target gear, solve the problem of gear shifting being aborted, reduce the user's waiting time for switching, speed up the response to the user's gear shift abort operation, and improve the user experience.

[0141] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to a Chinese patent application filed with the China Patent Office on September 30, 2021, bearing application number 202111161177.6 and entitled "Method, apparatus and electrochromic device for controlling gear shifting of electrochromic devices," and a Chinese patent application filed with the China Patent Office on September 16, 2022, bearing application number 202211129611.7 and entitled "Method, apparatus and electrochromic device for controlling gear shifting of electrochromic devices," the entire contents of which are incorporated herein by reference.

Claims

1. 1. A method for controlling gear shifting of an electrochromic device, comprising: The electrochromic device has pre-stored gear characterizing parameter data, the gear characterizing parameter data including corresponding open circuit voltages and charge capacity data for different gears of the electrochromic device, and the acquired gear characterizing parameter state is the open circuit voltage of the electrochromic device; The gear shift control method comprises: During the process of switching from an initial gear to an initial target gear before a gear shift, acquiring a gear characterizing parameter state of the electrochromic device, and when a new gear shift signal is received, acquiring a new target gear and interrupting the current charging or discharging operation; Determining a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation according to a gear characterizing parameter state at the time of the interruption operation, a gear characterizing parameter corresponding to the initial gear, and a gear characterizing parameter corresponding to the new target gear, or a gear characterizing parameter state at the time of the interruption operation and a gear characterizing parameter corresponding to the new target gear; adjusting the electrochromic device to switch to the new target gear according to the charge or discharge direction and the gear characterizing parameter adjustment value; The step of acquiring a gear characterizing parameter state during the interruption operation includes: After waiting for a first preset time period, predicting a stabilized open circuit voltage according to a rate of change of a real-time open circuit voltage of the electrochromic device within the first preset time period to determine a current gear in which the electrochromic device is located during the interruption operation; or after waiting a second preset time period, reading a current open circuit voltage of the electrochromic device to determine a current gear in which the electrochromic device was located at the time of the interruption operation. A method for controlling gear shifting in an electrochromic device.

2. The gear shift control method comprises: During the process of switching from the initial gear before the gear shift to the initial target gear, counting the number of times for each new gear shift signal received, and when it is detected that the count value of the gear shift number is greater than or equal to a preset number threshold, obtaining the secondary target gear corresponding to the gear shift signal when the count value is equal to the preset number threshold; and determining a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation according to a gear characterizing parameter state corresponding to a gear shift signal when the received count value is equal to the preset number threshold, and a gear characterizing parameter corresponding to the initial gear and the gear characterizing parameter corresponding to the secondary target gear, or according to a gear characterizing parameter state corresponding to a gear shift signal when the received count value is equal to the preset number threshold and a gear characterizing parameter corresponding to the secondary target gear, to directly adjust the electrochromic device to switch to the secondary target gear.

10. The method for controlling gear shifting with an electrochromic device according to claim 1.

3. In the process of shifting to the secondary target gear, if at least one new gear shift signal is received again within a unit time, the gear corresponding to the last gear shift signal is set as the final target gear; After switching to the secondary target gear, determining a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation corresponding to the last gear shift signal according to gear characterizing parameters corresponding to the secondary target gear and the final target gear, and adjusting the electrochromic device again so that the electrochromic device can be switched to the final target gear.

3. The method for controlling gear shifting with an electrochromic device according to claim 2.

4. the acquired gear characterization parameter state is a real-time charge capacity change value input to or output from the electrochromic device; The step of acquiring a gear characterizing parameter state during the interruption operation includes: reading the real-time charge capacity change value recorded during the interrupted operation; The step of determining a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation according to the gear characterizing parameter state at the time of the interruption operation, the gear characterizing parameter corresponding to the initial gear, and the gear characterizing parameter corresponding to the new target gear, includes: Calculating a charge capacity difference value between the new target gear and the initial gear; According to a comparison result between the charge capacity difference value and a real-time charge capacity change value acquired during the interruption operation, determining whether the direction is charging or discharging after the interruption operation, and setting the absolute value of the difference value between the charge capacity difference value and the real-time charge capacity change value as a charge capacity adjustment value in the corresponding direction.

10. The method for controlling gear shifting with an electrochromic device according to claim 1.

5. The step of predicting the open circuit voltage after stabilization according to the rate of change of the real-time open circuit voltage of the electrochromic device within the first preset time period includes: Calculating a corresponding open-circuit voltage change rate within the first preset time according to the interruption open-circuit voltage of the electrochromic device during an interruption operation and the real-time open-circuit voltage of the electrochromic device after the first preset time has elapsed, and determining a correction coefficient for the open-circuit voltage according to the open-circuit voltage change rate; and correcting the real-time open circuit voltage using the correction factor to obtain a corrected open circuit voltage value and determine a predicted open circuit voltage at steady state.

10. The method for controlling gear shifting with an electrochromic device according to claim 1.

6. The step of determining the correction factor includes: When the open circuit voltage change rate is equal to or approaching 0, the correction factor is 0; When the open circuit voltage change rate is not approaching 0, the correction factor exhibits a positive correlation with the absolute value of the open circuit voltage change rate.

6. The method for controlling gear shifting with an electrochromic device according to claim 5.

7. The step of determining a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation according to the gear characterizing parameter state at the time of the interruption operation and the gear characterizing parameter corresponding to the new target gear includes: calculating a charge capacity adjustment value based on the interruption open circuit voltage, including: according to the interruption open circuit voltage of the electrochromic device at the time of the interruption operation and the target open circuit voltage of the new target gear, combining with corresponding open circuit voltage and charge capacity data at different gears of the electrochromic device to determine a charge or discharge direction and a corresponding charge capacity adjustment value after the interruption operation; or calculating a charge capacity adjustment value based on the predicted open circuit voltage or the stable open circuit voltage read after waiting a second preset time period, including determining a charge or discharge direction and a corresponding charge capacity adjustment value after the interruption operation by combining with corresponding open circuit voltage and charge capacity data in different gears of the electrochromic device according to the predicted open circuit voltage or the stable open circuit voltage and the target open circuit voltage of the new target gear; 6. The method for controlling gear shifting with an electrochromic device according to claim 5.

8. Calculating a charge capacity adjustment value based on the interruption open circuit voltage, After controlling the charging or discharging of the charge capacity adjustment value, waiting for a third preset time period, when the gear shift signal of the new target gear is received again, obtain the adjusted stable open circuit voltage; determining a required charge capacity replenishment value according to the adjusted stable open circuit voltage and the target open circuit voltage of the new target gear in combination with corresponding open circuit voltage and charge capacity data for different gears of the electrochromic device; and readjusting the electrochromic device in response to the charge capacity replenishment value to reach the new target gear.

8. The method for controlling gear shifting with an electrochromic device according to claim 7.

9. Calculating a difference value between the acquired interrupted open circuit voltage and the target open circuit voltage of the new target gear; If the difference value is within a first preset range, calculating a charge capacity adjustment value based on the predicted open circuit voltage or the stable open circuit voltage; If the difference value is within a second preset range, a step of calculating a charge capacity adjustment value based on the interrupted open circuit voltage is performed; the electrochromic device is adjusted according to the charge capacity calculated by the interrupted open circuit voltage, and then adjusted again based on the adjusted stable open circuit voltage, and the absolute value of the value in the second preset range is smaller than the absolute value of the value in the first preset range.

9. The method for controlling gear shifting with an electrochromic device according to claim 8.

10. before initiating a shift from the initial gear to the initial target gear, Upon detecting receipt of an initial gear shift signal, detecting a current open circuit voltage of the electrochromic device to determine a current actual gear, and setting the current actual gear as an initial gear; obtaining the initial target gear from the initial gear shift signal, determining a difference between the initial target gear and a charge capacity corresponding to the initial gear, and obtaining a charge capacity that needs to be adjusted for shifting from the initial gear to the initial target gear; 10. The method for controlling gear shifting with an electrochromic device according to claim 1.

11. 1. An electrochromic device gear shift control device having pre-stored gear characterizing parameter data, comprising: The electrochromic device has pre-stored gear characterizing parameter data, the gear characterizing parameter data including corresponding open circuit voltages and charge capacity data for different gears of the electrochromic device, and the acquired gear characterizing parameter state is the open circuit voltage of the electrochromic device; The gear shift control device is an acquisition module configured to acquire a gear characterizing parameter state of the electrochromic device during a process of switching from an initial gear to an initial target gear before a gear shift, and to acquire a new target gear and interrupt a current charging or discharging operation when a new gear shift signal is received; a determination module configured to determine a charge or discharge direction and a corresponding gear characterizing parameter adjustment value after the interruption operation according to a gear characterizing parameter state at the time of the interruption operation and the initial gear and the new target gear or gear characterizing parameters corresponding to the new target gear; an adjustment module configured to adjust the electrochromic device to switch to the new target gear according to the charge or discharge direction and the gear characterizing parameter adjustment value; The acquisition module: and after waiting for a first preset time period, predicting a stabilized open circuit voltage according to a rate of change of a real-time open circuit voltage of the electrochromic device within the first preset time period, thereby determining a current gear in which the electrochromic device is located during the interruption operation. Alternatively, after waiting a second preset time period, the method may further be configured to read a current open circuit voltage of the electrochromic device to determine a current gear in which the electrochromic device is located at the time of the interruption operation; Electrochromic gearshift control device.

12. a processor and a memory in which a computer program is stored; The processor is configured to execute the computer program to implement the method for controlling a gear shift of an electrochromic device according to any one of claims 1 to 10. Electrochromic device.

13. A computer program is stored which, when executed by a processor, performs the method for controlling a gear shift of an electrochromic device according to any one of claims 1 to 10. Readable storage medium.

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